CN110449520B - Press brake lower die holder and press brake - Google Patents
Press brake lower die holder and press brake Download PDFInfo
- Publication number
- CN110449520B CN110449520B CN201910832455.2A CN201910832455A CN110449520B CN 110449520 B CN110449520 B CN 110449520B CN 201910832455 A CN201910832455 A CN 201910832455A CN 110449520 B CN110449520 B CN 110449520B
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- plate
- supporting seat
- supporting
- press brake
- side plate
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- 238000005452 bending Methods 0.000 claims abstract description 37
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a press brake lower die holder and a press brake, wherein the press brake lower die holder comprises a lower bottom plate, a first supporting seat and a second supporting seat; the first supporting seat comprises a first upper supporting seat and a first lower supporting seat, a first clamping plate is arranged at the top of the first upper supporting seat, a rotating shaft, a supporting piece A and a first limiting component are arranged at the bottom of the first upper supporting seat, a first driving device is arranged in the first lower supporting seat, and the end part of the output end of the first driving device is clamped in the first limiting component; the second supporting seat comprises a second upper supporting seat and a second lower supporting seat, a second clamping plate is arranged at the top of the second upper supporting seat, a second limiting assembly and a second guide column are fixed at the bottom of the second upper supporting seat, and the second guide column is slidably arranged at the top of the second lower supporting seat; the second lower supporting seat is internally provided with a second driving device, and the end part of the output end of the second driving device is clamped in the second limiting component; the press brake is constructed by the lower die holder of the press brake. The lower die holder of the bending machine and the bending machine provided by the invention can realize different bending requirements.
Description
Technical Field
The invention relates to the field of machining, in particular to a lower die holder of a bending press and the bending press.
Background
In the manufacture of automobiles, it is often necessary to bend some workpieces with a press brake, and at present, the principle of the press brake is to apply pressure perpendicular to the bending direction of an object above the object, thereby bending the object.
The upper die holder and the lower die holder of the traditional bending press are in a fixed mode, only a single product can be bent, the adjustment cannot be carried out according to different products, the limitation is too large, and even if some bending presses can be manually adjusted or automatically adjusted, the adjustment precision and the automation degree are low, and the bending press is not suitable for workpieces with various bending requirements.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a lower die holder of a bending press and a bending press constructed by the same, which can automatically adjust the die according to different bending requirements.
In a first aspect, the lower die holder of the bending press provided by the invention comprises a lower bottom plate, a first supporting seat and a second supporting seat which are arranged at the top of the lower bottom plate, wherein the first supporting seat and the second supporting seat are of an up-down adjustable structure, and the top of the first supporting seat and the second supporting seat is used for installing a lower die; the two first supporting seats are arranged, and the second supporting seat is arranged between the two first supporting seats;
The first supporting seat comprises a first upper supporting seat and a first lower supporting seat which are sequentially arranged from top to bottom, a U-shaped first clamping plate for clamping the end part of the lower die is arranged at the top of the first upper supporting seat, a rotating shaft, a supporting piece A and a first limiting component are arranged at the bottom of the first upper supporting seat, two ends of the rotating shaft are arranged at the top of the first lower supporting seat through rotating tailstocks, the supporting piece A is vertically arranged, and the lower end of the supporting piece A is used for supporting the top of the first lower supporting seat; a first driving device is arranged in the first lower supporting seat, and the end part of the output end of the first driving device is clamped in the first limiting component;
The second supporting seat comprises a second upper supporting seat and a second lower supporting seat which are sequentially arranged from top to bottom, a U-shaped second clamping plate for clamping the middle part of the lower die is arranged at the top of the second upper supporting seat, a second limiting assembly and a vertical second guide column are fixed at the bottom of the second upper supporting seat, and the lower end of the second guide column is slidably arranged at the top of the second lower supporting seat; the second lower supporting seat is internally provided with a second driving device, and the end part of the output end of the second driving device is clamped in the second limiting assembly.
The first supporting seat and the second supporting seat provided in the technical scheme can realize the purpose of up-and-down adjustment through the driving device, and the top of the first supporting seat and the second supporting seat form a required curved surface.
As a preferred embodiment of the invention, further, two racks which are distributed in parallel are fixedly arranged on the lower bottom plate; the first lower supporting seat and the second lower supporting seat comprise a front side plate, a rear side plate and a connecting rod fixedly connected with the front side plate and the rear side plate, the bottom ends of the front side plate and the rear side plate are respectively provided with an outward flange, the outer sides of the front side plate and the rear side plate are respectively provided with an L-shaped cover plate, and an adjusting knob is arranged outside the L-shaped cover plates; the rack is arranged in a gap formed by the L-shaped cover plate and the outward flange, and the inner end of the adjusting knob is a gear meshed with the rack. The first lower supporting seat and the second lower supporting seat can be moved through the adjusting knob.
As a preferred embodiment of the present invention, further, the top ends of the front side plate and the rear side plate in the first lower supporting seat are respectively provided with an outward flange for fixing the rotary tailstock and supporting the supporting member a; the top parts of the front side plate and the rear side plate in the second lower supporting seat are fixedly connected with a top plate, and a second guide hole is formed in the top plate and used for penetrating and installing a second guide column.
As a preferred embodiment of the present invention, further, the first upper support base includes an upper horizontal plate and a lower horizontal plate sequentially disposed from top to bottom; the top of the upper horizontal plate is provided with a first clamping plate, the bottom of the upper horizontal plate is fixed with a first guide column and a first limiting component, the lower horizontal plate is provided with a first guide hole for penetrating the first guide column, the bottom and the top of the lower horizontal plate are respectively vertically fixed with a supporting piece A and a supporting piece B, the other end of the supporting piece A is used for supporting the top of the first lower supporting seat, and the other end of the supporting piece B is used for supporting the bottom of the upper horizontal plate.
As a preferred embodiment of the invention, further, the first clamping plate is of a U-shaped structure, the inner side surfaces of the two side plates are provided with grooves, a sliding plate is fixed in the grooves, and the sliding plate is matched with a sliding groove formed in the outer side surface of the lower die.
As a preferred embodiment of the invention, further, a guide rail is fixed on the top of the upper horizontal plate, a sliding block is installed on the guide rail, and the first clamping plate is fixedly installed on the top of the sliding block; the guide rail outside still is equipped with U type baffle, and the both ends of first clamping plate are located the U type baffle of both sides respectively.
As a preferred embodiment of the invention, further, the second clamping plate comprises a second supporting block and movable baffles positioned at two sides of the second supporting block, a driving mechanism is arranged at the outer side of the movable baffles, and the output end part of the driving mechanism is clamped in a second limiting assembly at the outer side face of the movable baffles.
As a preferred embodiment of the invention, further, the number of the second supporting seats is at least 2, a third supporting seat is also arranged between two adjacent second supporting seats, the third supporting seats are also of an up-down adjustable structure, the third supporting seats comprise a third upper supporting seat and a third lower supporting seat which are sequentially arranged from top to bottom, a third supporting block for supporting a lower die is arranged at the top of the third upper supporting seat, the top of the third supporting block is of an arc structure, a third limiting assembly and a vertical third guide column are fixed at the bottom of the third upper supporting seat, and the lower end of the third guide column is slidably arranged at the top of the third lower supporting seat; the third lower supporting seat is internally provided with a third driving device, and the end part of the output end of the third driving device is clamped in a third limiting assembly.
Further, the third lower supporting seat comprises a front side plate, a rear side plate and a connecting rod fixedly connected with the front side plate and the rear side plate, the bottom ends of the front side plate and the rear side plate are respectively provided with an outward flange, the outer sides of the front side plate and the rear side plate are respectively provided with an L-shaped cover plate, and an adjusting knob is arranged outside the L-shaped cover plates; the inner end of the adjusting knob is provided with a gear which is meshed with a rack fixed on the lower bottom plate; the rack is arranged in a gap formed by the L-shaped cover plate and the flanging.
The invention provides a press brake constructed by a press brake lower die holder of the first aspect, which comprises an L-shaped frame, a press brake upper die holder and a press brake lower die holder, wherein the L-shaped frame comprises a vertical frame and a vertical upper die holder sliding rail arranged on the inner side surface of the vertical frame of the horizontal frame; the lower die holder of the bending press is fixed at the top of the horizontal frame, and the top of the lower die holder of the bending press clamps the lower die.
As a preferred embodiment of the present invention, further, the press brake upper die holder comprises a vertical upper back plate and a press brake fixed on the outer side of the upper back plate through a press brake fixing bracket, wherein the press brake comprises an upper top plate in the horizontal direction, adjusting side plates fixed on two sides of the bottom of the upper top plate, an adjusting servo motor arranged above the upper top plate and an adjusting block arranged below the upper top plate; the number of the adjusting servo motors and the number of the adjusting blocks are 20-60 which are arranged side by side, the output end of each adjusting servo motor is connected with each adjusting block through an adjusting screw rod, and the bottom ends of the adjusting blocks are sequentially connected to form a preset bending curve; the side of regulating block is equipped with the stopper, has seted up vertical bar spacing hole on the regulation curb plate, stopper slidable mounting in spacing downthehole.
As a preferred embodiment of the invention, further, two ends of the adjusting side plate are provided with L-shaped air cylinder supporting frames, the outer ends of the horizontal parts of the air cylinder supporting frames are provided with notches, a rotary supporting plate is rotatably connected in the notches through a rotary shaft, the top of the rotary supporting plate is provided with an upper die adjusting air cylinder, the rotary supporting plate is provided with an upper die guide hole, an upper die guide post is arranged in the upper die guide hole, the lower ends of the upper die guide posts are hinged with the end parts of the upper dies through connecting pieces, and the tail ends of piston rods of the upper die adjusting air cylinders are connected with the connecting pieces.
Drawings
FIG. 1 is a schematic view of the structure of a press brake lower die;
FIG. 2 is a schematic view of the structure of the first support base;
FIG. 3 is a schematic view of a second support base;
FIG. 4 is a schematic structural view of a third support base;
FIG. 5 is a schematic structural view of a first spacing component, a second spacing component and a third spacing component;
FIG. 6 is a schematic view of a press brake;
FIG. 7 is an enlarged view of a portion of FIG. 6A;
FIG. 8 is a front view of a press brake;
FIG. 9 is a side view of a press brake;
FIG. 10 is a schematic view of a press brake beam configuration of an upper die holder of the press brake;
FIG. 11 is a schematic view of a press brake beam mounting bracket for an upper die holder of a press brake.
In the figure, 1, a lower die holder of a bending press; 2. a lower die; 3. an upper die; 4. an upper die holder of the bending press; 5. a frame; 6. a power device; 7. a workpiece;
11. A first support base; 111. a first upper support base; 112. a first lower support base; 113. a first engagement plate; 114. a rotation shaft; 115. a supporting piece A; 116. a first limit assembly; 117. rotating the tailstock; 118. a first driving device; 119. a first guide post; 111-1, an upper horizontal plate; 111-2, a lower horizontal plate; 111-3, a first guide hole; 111-4, a supporting piece B;111-5, a guide rail; 111-6, a sliding block; 111-7, U-shaped baffle; 111-8, grooves; 111-9, a sliding plate;
12. A second support base; 121. a second upper support base; 122. a second lower support base; 123. a second engagement plate; 123-1, a second supporting block; 123-2, a movable baffle; 123-3, a driving mechanism; 124. the second limiting component; 125. a second guide post; 126. a second driving device;
13. A third support base; 131. a third upper support base; 132. a third lower support base; 133. a support block; 134. the third limiting assembly; 135. a third guide post; 136. a third driving device;
14. a lower base plate; 141. a rack; 15. a front side plate; 16. a rear side plate; 17. a connecting rod; 18. an L-shaped cover plate; 19. an adjustment knob;
41. An upper backboard; 42. a bending beam fixing bracket; 43. bending the beam; 431. an upper top plate; 432. adjusting the side plates; 433. adjusting a servo motor; 434. an adjusting block; 435. a limiting block; 436. a limiting hole; 44. a cylinder support; 441. a notch; 442. rotating the support plate; 443. a compression mold adjusting cylinder is arranged; 444. an upper die guide hole; 445. an upper die guide post; 446. a connecting piece; 51. a vertical frame; 52. a horizontal frame; 53. and an upper die holder sliding rail.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
The invention provides a press brake lower die 1, as shown in figures 1-4, which comprises a lower bottom plate 14, a first supporting seat 11 and a second supporting seat 12 which are arranged at the top of the lower bottom plate, wherein the first supporting seat 11 and the second supporting seat 12 are of an up-down adjustable structure, and the top of the first supporting seat 11 and the second supporting seat 12 are used for installing a lower die 2; the two first supporting seats 11 are arranged at two ends of the lower bottom plate 14, and the second supporting seat 12 is arranged between the two first supporting seats 11;
The first supporting seat 11 comprises a first upper supporting seat 111 and a first lower supporting seat 112 which are sequentially arranged from top to bottom, a first clamping plate 113 which is used for clamping the end part of the lower die 2 and is of a U-shaped structure is arranged at the top of the first upper supporting seat 111, a rotating shaft 114, a supporting piece A115 and a first limiting assembly 116 are arranged at the bottom of the first upper supporting seat, two ends of the rotating shaft 114 are arranged at the top of the first lower supporting seat 112 through a rotating tailstock 117, the supporting piece A115 is vertically arranged, and the lower end of the supporting piece A115 is used for supporting the top of the first lower supporting seat 112; the first lower supporting seat 112 is internally provided with a first driving device 118, and the output end part of the first driving device 118 is clamped in the first limiting component 116;
The second supporting seat 12 comprises a second upper supporting seat 121 and a second lower supporting seat 122 which are sequentially arranged from top to bottom, a second clamping plate 123 which is used for clamping the middle part of the lower die 2 and is of a U-shaped structure is arranged at the top of the second upper supporting seat 121, a second limiting assembly 124 and a vertical second guide column 125 are fixed at the bottom of the second upper supporting seat, and the lower end of the second guide column 125 is slidably arranged at the top of the second lower supporting seat 122; the second lower support 122 is internally provided with a second driving device 126, and an output end of the second driving device 126 is clamped in the second limiting assembly 124 (for displaying a structure of the output end of the second driving device, the structure is not drawn in the second limiting assembly).
According to the invention, the first supporting seat 11 drives the first upper supporting seat 111 to move up and down through the first driving device 118, and as the end part of a workpiece needs a certain bending radian, the bottom of the first upper supporting seat 111 is provided with the rotating shaft 114 and is supported through the rotating tailstock 117, the first upper supporting seat 111 can rotate through the rotating shaft 114 and is propped against the top of the first lower supporting seat through the propping piece A, so that the stability of the first upper supporting seat 111 after rotation is ensured; the second supporting seat 12 drives the second upper supporting seat 121 to move up and down through the second driving device 126, and in order to ensure the accuracy of the direction during the up and down movement, a second guiding post 125 is provided, and the second guiding post can also maintain the stability of the second upper supporting seat 121. The second support seat 12 may be one or more, and when the second support seat is one, it is preferably arranged at an intermediate position between the two first support seats 11 to ensure the stability of supporting the lower die and the workpiece, and when the second support seat is a plurality of second support seats, the second support seats are uniformly arranged, one of the second support seats is positioned at an intermediate position between the two first support seats 11, and the other second support seats 12 are symmetrically distributed about the intermediate second support seat.
In order to facilitate the adjustment of the positions of the first lower support seat 11 and the second lower support seat 12 on the lower bottom plate 14, preferably, the lower bottom plate 14 is fixedly provided with a rack 141, the bottoms of the first lower support seat 11 and the second lower support seat 12 are provided with an adjusting knob 19, the inner ends of the adjusting knob 19 are provided with gears meshed with the rack 141, and the positions of the first lower support seat 11 and the second lower support seat 12 can be adjusted by twisting the adjusting knob 19; further preferably, two parallel-distributed racks 141 are fixedly arranged on the lower bottom plate 14, and adjusting knobs are arranged on two sides of the bottoms of the first lower supporting seat 11 and the second lower supporting seat 12; specifically, the first lower supporting seat 11, the second lower supporting seat 12 all include preceding curb plate 15, posterior lateral plate 16 and the connecting rod 17 of fixed connection both, the bottom of preceding curb plate 15 and posterior lateral plate 16 all is equipped with the turned-up edge 151, the turned-up edge can the cartridge in the spout in the rack outside, preceding curb plate 15 and posterior lateral plate 16 outside all are equipped with L type apron 18, L type apron peripheral hardware adjust knob 19, the rack is installed in the space that L type apron and turned-up edge formed, adjust knob's inner gear and rack engagement.
Further preferably, the top ends of the front side plate 15 and the rear side plate 16 in the first lower supporting seat 122 are respectively provided with an outward flange 151 for fixing the rotary tailstock 117 and supporting the supporting piece a115; the top parts of the front side plate 15 and the rear side plate 16 in the second lower supporting seat are fixedly connected with a top plate 152, a second guide hole 153 is formed in the top plate 152 and used for penetrating the second guide column 125, and the second guide column 125 plays a role in guiding the up-and-down movement of the second upper supporting seat 121.
Specifically, the first upper support base 111 includes an upper horizontal plate 111-1 and a lower horizontal plate 111-2, which are sequentially disposed from top to bottom; the top of the upper horizontal plate is provided with a first clamping plate 113, the bottom of the upper horizontal plate is fixed with a first guide column 119 and a first limiting component 116, the lower horizontal plate is provided with a first guide hole 111-3 for penetrating the first guide column, the bottom and the top of the lower horizontal plate 111-2 are respectively vertically fixed with a supporting piece A115 and a supporting piece B111-4, the other end of the supporting piece A115 is used for supporting the top of the first lower supporting seat 111, and the other end of the supporting piece B is used for supporting the bottom of the upper horizontal plate 111-1. Specifically, the supporting member a115 and the supporting member B111-4 may be bolts, the lower horizontal plate 111-2 is provided with threaded holes, the supporting member a115 and the supporting member B111-4 are mounted on the upper and lower sides of the lower horizontal plate 111-2 in a threaded manner, the nut portion of the bolts is used for supporting the top of the first lower support and the bottom of the upper horizontal plate, and at the same time, the exposed length of the nut portion can be adjusted by rotating the bolts.
Preferably, after the position of the first supporting seat 11 is fixed, in order to facilitate fine adjustment of the first clamping plate 113, a guide rail 111-5 is fixed on the top of the upper horizontal plate 111-1, a sliding block 111-6 is mounted on the guide rail, and the first clamping plate 113 is fixedly mounted on the top of the sliding block 111-6; the outer side of the guide rail 111-5 is also provided with a U-shaped baffle 111-7, and two ends of the first clamping plate 113 are respectively positioned in the U-shaped baffles at two sides, so that the first clamping plate is prevented from falling off in the sliding process.
Preferably, the first engaging plate 113 has a U-shaped structure, the inner sides of the two side plates are provided with grooves 111-8, a sliding plate 111-9 is fixed in the grooves 111-8, and the sliding plate 111-9 is matched with a sliding groove 21 provided on the outer side of the lower mold, as shown in fig. 7.
Preferably, the second clamping plate 123 comprises a second supporting block 123-1 and movable baffles 123-2 positioned at two sides of the second supporting block, a driving mechanism 123-3 is arranged at the outer side of the movable baffles, the end part of the output end of the driving mechanism is clamped in a second limiting assembly 124 at the outer side surface of the movable baffles, and the movable baffles 123-2 clamp or loosen the lower die under the action of the driving mechanism 123-3, so that the lower die is convenient to install.
Preferably, at least 2 second supporting seats 12 are provided, a third supporting seat 13 is further disposed between two adjacent second supporting seats 12, as shown in fig. 4, the third supporting seat 13 is also an up-down adjustable structure, and includes a third upper supporting seat 131 and a third lower supporting seat 132 which are sequentially disposed from top to bottom, a third supporting block 133 for supporting a lower mold is disposed at the top of the third upper supporting seat 131, the top of the third supporting block is in an arc structure, a third limiting assembly 134 and a vertical third guiding column 135 are fixed at the bottom of the third upper supporting seat, and the lower end of the third guiding column 135 is slidably mounted at the top of the third lower supporting seat 132; the third lower supporting seat 132 is internally provided with a third driving device 136, and an output end of the third driving device 136 is clamped in the third limiting assembly 134 (for displaying a structure of the output end of the third driving device 136, the structure is not drawn in the third limiting assembly 134).
Further, the third lower supporting seat 132 has the same structure as the second lower supporting seat 122, and comprises a front side plate 15, a rear side plate 16 and a connecting rod 17 fixedly connecting the front side plate 15 and the rear side plate 16, wherein the bottom ends of the front side plate 15 and the rear side plate 16 are respectively provided with an outward flange 151, the top ends of the front side plate 15 and the rear side plate 16 are fixedly connected with a top plate 152, the top plate 152 is provided with a second guiding hole 153 for penetrating and installing the second guiding post 125, the outer sides of the front side plate and the rear side plate are respectively provided with an L-shaped cover plate 18, and an L-shaped cover plate peripheral adjusting knob 19; a gear is arranged at the inner end of the adjusting knob 19 and meshed with a rack 141 fixed on the lower bottom plate; the rack is mounted in the gap formed by the L-shaped cover plate 18 and the outward flange 19.
One specific implementation mode is as follows: the second supporting seats are 3, the third supporting seats are 2, the first supporting seats and the third supporting seats are arranged between two adjacent second supporting seats at intervals, and the first supporting seats and the third supporting seats are symmetrically distributed about the middle second supporting seats.
Specifically, the first limiting component 116, the second limiting component 124, and the third limiting component 134 are formed by two L-shaped limiting blocks, and a T-shaped slot is formed between the two L-shaped limiting blocks, for clamping the output end portions of the driving devices, as shown in fig. 5, and specifically, the first driving device 118, the second driving device 126, and the third driving device 136 may all adopt air cylinders or hydraulic cylinders.
Example 2
On the basis of the embodiment 1, the invention also provides a press brake constructed by the press brake press die 1 of any one of the embodiment 1, as shown in fig. 6-11, the press brake press comprises an L-shaped frame 5, a press brake upper die holder 4 and a press brake lower die holder 1, the L-shaped frame 5 comprises a vertical frame 51 and a horizontal frame 52, the inner side surface of the vertical frame 51 is provided with a vertical upper die holder sliding rail 53, the press brake upper die holder 4 is slidably arranged on the upper die holder sliding rail 53, the lower part of the press brake upper die holder 4 is connected with an upper die 3, and the top of the vertical frame 51 is provided with a power device 6 for driving the press brake upper die holder to slide; the lower die holder 1 of the bending machine is fixed on the top of the horizontal frame 52, and the top of the lower die holder 1 of the bending machine clamps the lower die 2. In specific use, the tool is clamped on the lower die 2, the upper die holder 4 of the press brake is driven to move downwards under the action of the power device 6, so that the upper die 3 and the lower die 2 clamp and deform a workpiece, and the upper die 3 and the lower die 2 are made of flexible nylon materials.
Specifically, as shown in fig. 10 to 11, the upper die holder 4 of the press brake comprises a vertical upper back plate 41 and a press brake beam 43 fixed on the outer side of the upper back plate through a press brake beam fixing bracket 42, wherein the press brake beam 43 comprises an upper top plate 431 in the horizontal direction, adjusting side plates 432 fixed on two sides of the bottom of the upper top plate 431, an adjusting servo motor 433 arranged above the upper top plate 431 and an adjusting block 434 arranged below the upper top plate 431; 20-60 adjusting servomotors 433 and adjusting blocks 434 are arranged side by side, specifically 40 adjusting servomotors are selected, a row of servomotor fixing frames 26 are fixed on the upper top plate 431, and are used for fixedly mounting the adjusting servomotors 433; the output end of each adjusting servo motor 433 is connected with each adjusting block 434 through an adjusting screw rod, so that the lifting of the adjusting blocks 434 is realized, and the bottom ends of the adjusting blocks form a needed bending curve; in order to limit the adjusting block 434, a limiting block 435 is arranged on the side edge of the adjusting block 434, a vertical bar-shaped limiting hole 436 is formed in the adjusting side plate 432, and the limiting block 435 is slidably mounted in the limiting hole 436.
Specifically, as shown in fig. 11, the bending beam fixing support 42 includes a fixing back plate 421 and a "door" shaped connection plate 422 fixed on one side thereof, two ends of the "door" shaped connection plate 422 are straddled on two sides of the adjusting servo motor 423 and fixedly connected to the top of the upper top plate 41, and a gap formed by the "door" shaped connection plate 422 is used for giving way to the adjusting servo motor 423; at least 2 connecting plates 422 are arranged on each bending beam fixing support 42, and the end parts of the connecting plates 422 on the same side are fixedly connected through connecting blocks, so that the whole mounting of the bending beam fixing supports 42 is facilitated.
In order to realize the sliding of the upper die holder 4 of the press brake, specifically, a boss 511 is arranged on the inner side of the top of the vertical frame 51, a power device 6 for driving the upper die holder 4 of the press brake to slide is arranged on the top of the boss 511, as shown in fig. 11, a servo motor can be selected for the power device 6, an adjusting screw 513 is arranged at the bottom of the boss 511, the power device 6 is connected with the top end of the adjusting screw 513 through a coupler 512, a sliding block 411 and a screw rod connecting block are vertically arranged on the inner side of the upper back plate 41, the sliding block 411 is slidably arranged on an upper die holder sliding rail 53, a screw hole is formed in the screw rod connecting block for installing the adjusting screw rod 513, and the power device 6 is started, so that the upper die holder 4 of the press brake can slide up and down, and further the upper die and the lower die can slide up and down.
Because the bottom of each adjusting block 434 in the upper die holder of the bending press forms a downward protruding arc, in order to facilitate the matching of the upper die 3 with the arc formed by each adjusting block 434, the invention sets the two ends of the upper die 3 to be of a structure capable of being adjusted up and down, specifically, as shown in fig. 10, the two ends of the adjusting side plate 432 are provided with the L-shaped cylinder supporting frame 44, the outer end of the horizontal part of the cylinder supporting frame 44 is provided with a notch 441, the notch 441 is rotationally connected with a rotating supporting plate 442 through a rotating shaft, the top of the rotating supporting plate 442 is provided with an upper die adjusting cylinder 443, the rotating supporting plate 442 is provided with an upper die guiding hole 444, the upper die guiding column 445 is arranged in the upper die guiding hole 444, the lower end of the upper die guiding column 445 is hinged with the end of the upper die 3 through a connecting piece 446, the end of a piston rod of the upper die adjusting cylinder 443 is connected with the connecting piece 446, the end of the piston rod drives the end of the upper die adjusting cylinder 443 to move upwards, so that the upper die 3 forms an arc matched with the end of the adjusting block 434.
Preferably, for ease of automation, each power mechanism of the present invention is connected to a PLC control system, including a first drive 118, a second drive 126, a drive 123-3, a third drive 136 in the lower die holder of the press brake, an adjustment servo motor 433 in the upper die holder of the press brake, an upper die adjustment cylinder 443, and a power unit 6, among others.
In addition, a lifting device can be arranged in the horizontal frame 52 for lifting the lower die holder 1 of the press brake, so that the press brake moves the press brake to bend the workpiece up and down simultaneously.
The above embodiments only represent various embodiments of the present invention, which are described more specifically and in detail, but are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (4)
1. The lower die holder of the press brake is characterized by comprising a lower bottom plate (14), a first supporting seat (11) and a second supporting seat (12) which are arranged at the top of the lower bottom plate, wherein the first supporting seat and the second supporting seat are of an up-down adjustable structure, and the top of the first supporting seat and the second supporting seat is used for installing a lower die (2); the two first supporting seats are arranged, and the second supporting seat is arranged between the two first supporting seats;
the first support seat comprises a first upper support seat (111) and a first lower support seat (112) which are sequentially arranged from top to bottom, the top of the first upper support seat is provided with a U-shaped first clamping plate (113) for clamping the end part of the lower die, the bottom of the first upper support seat is provided with a rotating shaft (114), a supporting piece A (115) and a first limiting component (116), two ends of the rotating shaft are arranged at the top of the first lower support seat through a rotating tailstock (117), the supporting piece A is vertically arranged, and the lower end of the supporting piece A is used for supporting the top of the first lower support seat; a first driving device (118) is arranged in the first lower supporting seat, and the end part of the output end of the first driving device is clamped in the first limiting component;
The second supporting seat comprises a second upper supporting seat (121) and a second lower supporting seat (122) which are sequentially arranged from top to bottom, a U-shaped second clamping plate (123) for clamping the middle part of the lower die is arranged at the top of the second upper supporting seat, a second limiting assembly (124) and a vertical second guide column (125) are fixed at the bottom of the second upper supporting seat, and the lower end of the second guide column is slidably arranged at the top of the second lower supporting seat; a second driving device (126) is arranged in the second lower supporting seat, and the end part of the output end of the second driving device is clamped in the second limiting component;
The first upper supporting seat comprises an upper horizontal plate (111-1) and a lower horizontal plate (111-2) which are sequentially arranged from top to bottom; the top of the upper horizontal plate is provided with a first clamping plate, the bottom of the upper horizontal plate is fixedly provided with a first guide column (119) and a first limiting component, the lower horizontal plate is provided with a first guide hole (111-3) for penetrating the first guide column, the bottom and the top of the lower horizontal plate are respectively vertically fixed with a supporting piece A and a supporting piece B (111-4), the other end of the supporting piece A is used for supporting the top of the first lower supporting seat, and the other end of the supporting piece B is used for supporting the bottom of the upper horizontal plate;
The supporting piece A (115) and the supporting piece B (111-4) are bolts, threaded holes are formed in the lower horizontal plate (111-2), the supporting piece A (115) and the supporting piece B (111-4) are arranged on the upper side and the lower side of the lower horizontal plate (111-2) in a threaded mode, and a nut part of the bolts is used for supporting the top of the first lower support and the bottom of the upper horizontal plate;
Two parallel-distributed racks (141) are fixedly arranged on the lower bottom plate; the first lower supporting seat and the second lower supporting seat comprise a front side plate (15), a rear side plate (16) and a connecting rod (17) fixedly connected with the front side plate and the rear side plate, the bottom ends of the front side plate and the rear side plate are respectively provided with an outward flange (151), the outer sides of the front side plate and the rear side plate are respectively provided with an L-shaped cover plate (18), and an adjusting knob (19) is arranged outside the L-shaped cover plates; the rack is arranged in a gap formed by the L-shaped cover plate and the outward flange, and the inner end of the adjusting knob is a gear meshed with the rack;
the top ends of the front side plate and the rear side plate in the first lower supporting seat are respectively provided with an outward flange (151) for fixing the rotary tailstock and propping against the propping piece A; the tops of the front side plate and the rear side plate in the second lower supporting seat are fixedly connected with a top plate (152), and a second guide hole (153) is formed in the top plate and used for wearing a second guide column;
the first clamping plate is of a U-shaped structure, grooves (111-8) are formed in the inner side surfaces of two side plates of the first clamping plate, sliding plates (111-9) are fixed in the grooves, and the sliding plates are matched with sliding grooves (21) formed in the outer side surfaces of the lower die;
the top of the upper horizontal plate is fixedly provided with a guide rail (111-5), a slide block (111-6) is arranged on the guide rail, and the first clamping plate is fixedly arranged at the top of the slide block; the outer side of the guide rail is also provided with a U-shaped baffle (111-7), and two ends of the first clamping plate are respectively positioned in the U-shaped baffles at two sides;
the second clamping plate comprises a second supporting block (123-1) and movable baffles (123-2) positioned on two sides of the second supporting block, a driving mechanism (123-3) is arranged on the outer side of each movable baffle, and the end part of the output end of the driving mechanism is clamped in a second limiting assembly (124) on the outer side surface of each movable baffle;
The number of the second supporting seats is at least 2, a third supporting seat (13) is further arranged between every two adjacent second supporting seats, the third supporting seats are also of an up-down adjustable structure, each third supporting seat comprises a third upper supporting seat (131) and a third lower supporting seat (132) which are sequentially arranged from top to bottom, a third supporting block (133) for supporting a lower die is arranged at the top of each third upper supporting seat, the top of each third supporting block is of an arc-shaped structure, a third limiting assembly (134) and a vertical third guide column (135) are fixed at the bottom of each third upper supporting seat, and the lower ends of the third guide columns are slidably arranged at the top of each third lower supporting seat; a third driving device (136) is arranged in the third lower supporting seat, and the end part of the output end of the third driving device is clamped in a third limiting assembly;
The third lower supporting seat comprises a front side plate (15), a rear side plate (16) and a connecting rod (17) fixedly connected with the front side plate and the rear side plate, wherein the bottom ends of the front side plate and the rear side plate are respectively provided with an outward flange (151), the outer sides of the front side plate and the rear side plate are respectively provided with an L-shaped cover plate (18), and an adjusting knob (19) is arranged outside the L-shaped cover plates; the inner end of the adjusting knob (19) is provided with a gear which is meshed with a rack (141) fixed on the lower bottom plate; the rack is arranged in a gap formed by the L-shaped cover plate and the flanging.
2. The press brake constructed by the press brake lower die holder according to claim 1 is characterized in that the press brake comprises an L-shaped frame (5), a press brake upper die holder (4) and the press brake lower die holder (1), the L-shaped frame comprises a vertical frame (51) and a horizontal frame (52), a vertical upper die holder sliding rail (53) is arranged on the inner side surface of the vertical frame, the press brake upper die holder is slidably arranged on the upper die holder sliding rail, an upper die (3) is connected below the press brake upper die holder, and a power device (6) for driving the press brake upper die holder to slide is arranged on the top of the vertical frame; the lower die holder of the bending press is fixed at the top of the horizontal frame, and the top of the lower die holder of the bending press clamps the lower die (2).
3. Press brake according to claim 2, characterized in that the press brake upper die holder (4) comprises a vertical upper back plate (41) and a press bending beam (43) fixed outside the upper back plate by a press bending beam fixing bracket (42), the press bending beam comprises an upper top plate (431) in the horizontal direction, adjusting side plates (432) fixed at both sides of the bottom of the upper top plate, an adjusting servo motor (433) arranged above the upper top plate and an adjusting block (434) arranged below the upper top plate; the number of the adjusting servo motors and the number of the adjusting blocks are 20-60 which are arranged side by side, the output end of each adjusting servo motor is connected with each adjusting block through an adjusting screw rod, and the bottom ends of the adjusting blocks are sequentially connected to form a preset bending curve; the side of regulating block is equipped with stopper (435), has seted up vertical bar spacing hole (436) on the regulation curb plate, stopper slidable mounting in spacing downthehole.
4. A bending machine according to claim 3, wherein the two ends of the adjusting side plate are provided with L-shaped cylinder supporting frames (44), the outer ends of the horizontal parts of the cylinder supporting frames are provided with notches (441), the notches are rotatably connected with rotating supporting plates (442) through rotating shafts, the tops of the rotating supporting plates are provided with upper die adjusting cylinders (443), the rotating supporting plates are provided with upper die guide holes (444), the upper die guide holes are internally provided with upper die guide posts (445), the lower ends of the upper die guide posts are hinged with the ends of the upper dies through connecting pieces (446), and the tail ends of piston rods of the upper die adjusting cylinders are connected with the connecting pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832455.2A CN110449520B (en) | 2019-09-04 | 2019-09-04 | Press brake lower die holder and press brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910832455.2A CN110449520B (en) | 2019-09-04 | 2019-09-04 | Press brake lower die holder and press brake |
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| CN110449520A CN110449520A (en) | 2019-11-15 |
| CN110449520B true CN110449520B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910832455.2A Active CN110449520B (en) | 2019-09-04 | 2019-09-04 | Press brake lower die holder and press brake |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112848234A (en) * | 2020-12-30 | 2021-05-28 | 宁波宏诺智能装备有限公司 | Bending and correcting jig for bright strip products |
| CN112775224B (en) * | 2021-01-27 | 2025-07-08 | 奥美森智能装备股份有限公司 | Bending machine capable of feeding and discharging in multiple directions |
| CN117246029B (en) * | 2023-09-23 | 2024-04-16 | 湖北中港金属制造有限公司 | Dysmorphism aluminium honeycomb panel compression fittings |
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| CN104226806B (en) * | 2014-07-04 | 2016-03-30 | 宁波裕民机械工业有限公司 | Vehicle dormer window aluminium rail bends adjustable shaping mould |
| KR101792085B1 (en) * | 2016-07-20 | 2017-11-01 | 서종태 | Bending device |
| CN206838816U (en) * | 2017-01-13 | 2018-01-05 | 重庆宏协承汽车部件有限公司 | A kind of big curved frock for the bending of long products end |
| CN106825155B (en) * | 2017-03-14 | 2018-09-07 | 浙江卓逸铝业有限公司 | A kind of aluminium section bar bent into shape device |
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| CN110449520A (en) | 2019-11-15 |
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