CN120515935A - Building block locking type lathe bed reinforcing mechanism - Google Patents

Abstract

The present application relates to a block-locking bed reinforcement mechanism, which provides a second block on the bed body to cooperate with the first block, and locks and fixes the screw sleeve fixing seat of the rear outlet assembly using a locking groove and a wedge mechanism located between the two blocks, so that the second block provides direct and strong support for the screw sleeve fixing seat and the rear part of the first block, effectively enhancing the supporting rigidity of the first block, suppressing its stress deformation during operation, thereby improving the stability and processing accuracy of the key stress-bearing area of the bed; at the same time, the rear outlet assembly is directly installed on the second block through the screw sleeve fixing seat, which simplifies the overall installation structure, eliminates the need for traditional additional installation brackets, reduces manufacturing costs, and improves the reliability of the installation of the rear outlet assembly and the compactness of the overall structure.

Description

Building block locking type lathe bed reinforcing mechanism

Technical Field

The application relates to the technical field of cold heading machines, in particular to a block locking type lathe bed reinforcing mechanism.

Background

The cold header is a device widely used in the field of metal working, and plastically deforms a metal blank by the reciprocating motion of a die and a punch, thereby manufacturing various standard parts and special-shaped parts. In the working process of the cold header, the lathe bed is used as a basic structure for bearing main working parts (such as a die holder, a die holder and the like), and the rigidity and the stability of the lathe bed are critical to the machining precision and the service life of equipment.

In conventional cold header designs, the die holder is typically provided with structure for supporting and transmitting reaction forces when subjected to substantial impact loads. For example, in some designs, one or more reinforcing blocks are connected or integrally arranged behind the die holder, however, under long-time and high-strength working conditions, especially in some cold heading machines with relatively compact or miniaturized structures, the reinforcing block area directly bearing the impact reaction force of the die is easy to undergo accumulated deformation due to concentrated stress, which may affect the positioning accuracy of the die holder, even reduce the overall rigidity of the machine body, and further affect the quality of cold heading products and the service life of equipment.

Disclosure of Invention

In order to solve the problems, the application provides a block locking type lathe bed reinforcing mechanism which is used for providing support for a screw sleeve fixing seat and inhibiting the stress deformation of a first block through arranging an integrated second block.

In order to achieve the purpose, the block locking type lathe bed reinforcing mechanism comprises a lathe bed made of metal materials, wherein a punching die seat and a punching die seat which are oppositely arranged are arranged on the lathe bed, a rear passing-out assembly which is arranged on the lathe bed and is positioned on one side of the punching die seat, which is away from the punching die seat, a first block and a second block which are integrally formed with the lathe bed, and a locking groove which is concavely arranged on the lathe bed, wherein the locking groove is formed by the first block and the second block; the first building block and the second building block are convexly arranged on the bed body and positioned between the die holder and the rear through-out assembly, the vertical height of the top end of the first building block is larger than that of the top end of the second building block, the locking groove is positioned between the first building block and the second building block, the inner groove wall of the locking groove is formed by opposite side walls of the first building block and the second building block, the die holder is fixed on the bed body through a die locking mechanism and is propped against one side of the first building block, which is far away from the second building block, the first building block is provided with a rear through hole, the rear through-out assembly is arranged on the second building block and comprises a rear through-out rod, a rear through-screw sleeve and a screw sleeve fixing seat for installing and fixing the rear through-screw sleeve, the rear through-out rod stretches into the rear through hole and is matched with the die holder, the rear through-out screw sleeve is used for adjusting the ejection length of the rear through-out rod, the screw sleeve is fixed on one side of the first building block, the wedge is provided with a wedge block, the wedge block is fixed on one side of the first building block, which is far towards the bottom of the second building block, the first wedge is provided with a wedge block, the wedge is fixed on one side of the first wedge block is provided with a locking groove, the wedge is fixed on one side of the wedge block, the wedge is fixed on the bottom of the wedge is opposite the side of the first wedge block, the wedge surface and the second building block jointly define a first wedge-shaped groove; the bottom end of the fastening piece vertically penetrates through the second wedge block and is locked at the bottom of the locking groove, so that the wedge surface of the second wedge block presses the wedge surface of the first wedge block.

Preferably, the lathe bed is concavely provided with a pit for accommodating the die holder, the first building block is matched with the lathe bed to form an inner pit wall of the pit, the die holder is respectively provided with wedge faces at two ends in the length direction, the wedge faces and the inner pit wall of the pit jointly define a second wedge-shaped groove, and a first wedge-shaped block which is propped against the wedge faces to form locking fit is arranged in the second wedge-shaped groove.

Preferably, a first locking oil cylinder is fixedly installed on the lathe bed, and a piston rod of the first locking oil cylinder is connected with the first wedge block and used for selectively driving the first wedge block to prop against the wedge surface.

The mold locking mechanism comprises a second locking oil cylinder, a bottom plate, a second wedge block and a third wedge block which is opposite to the second wedge block, wherein the bottom plate is detachably arranged at the pit bottom of the pit, a locking groove is formed in the bottom plate, the third wedge block is detachably arranged at the bottom of the mold base, the second wedge block and the third wedge block are contained in the locking groove, the side faces, which are away from each other, of the second wedge block and the third wedge block are respectively contacted with different inner groove walls of the locking groove, the second locking oil cylinder is fixedly arranged on the machine body, a piston rod of the second locking oil cylinder extends into the locking groove to be fixedly connected with the second wedge block, the piston rod is used for driving the second wedge block to move between a locking position and a releasing position in the locking groove, in the locking position, wedge faces of the second wedge block and the third wedge block are in contact with each other, the side faces, which are away from each other, of the second wedge block and the third wedge block are respectively pressed against the inner groove walls to form a locking fit, and a clearance is formed between the second wedge block and the third wedge block.

Preferably, a backing plate is fixedly installed on one side, facing the first building block, of the die holder, a mounting portion is convexly arranged on the bottom edge of the backing plate, a notch is formed in the edge of one side, facing the mounting portion, of the base plate, and the notch is matched with the mounting portion to jointly define the locking groove.

Preferably, the mounting part is provided with a plurality of limiting protrusions protruding towards one side of the bottom plate, the limiting protrusions vertically extend and are distributed at intervals along the axial direction of the second locking oil cylinder, and the second wedge-shaped block is provided with clamping grooves matched with the limiting protrusions.

Preferably, the upper plate surface of the bottom plate is provided with a wedge cover plate, the wedge cover plate covers the top side opening of the notch, the bottom of the die holder is provided with a positioning groove corresponding to the wedge cover plate, and the wedge cover plate is suitable for being accommodated in the positioning groove.

According to the block locking type lathe bed reinforcing mechanism designed by the application, the second block matched with the first block is arranged on the lathe bed, and the screw sleeve fixing seat of the rear passing-out assembly is locked and fixed by utilizing the locking groove and the wedge block mechanism which are arranged between the two blocks, so that the second block provides direct and firm support for the screw sleeve fixing seat and the rear part of the first block, the support rigidity of the first block is effectively enhanced, the stress deformation of the first block during working is restrained, and therefore, the stability and the machining precision of a key stress area of the lathe bed are improved.

Drawings

Fig. 1 is a schematic plan view of a block locking type bed reinforcing mechanism according to an embodiment of the present application.

FIG. 2 is a cross-sectional view taken at A-A in FIG. 1.

Fig. 3 is an enlarged schematic view at B in fig. 1.

Fig. 4 is an enlarged schematic view at C in fig. 2.

Fig. 5 is an exploded perspective view of a block locking type bed reinforcing mechanism according to an embodiment of the present application.

Fig. 6 is a schematic structural cooperation diagram of a wedge surface of a die holder and a first wedge block according to an embodiment of the present application.

Fig. 7 is a schematic perspective view of a mold locking mechanism according to an embodiment of the present disclosure.

Fig. 8 is a schematic plan view of a mold locking mechanism according to an embodiment of the present application.

Fig. 9 is a schematic diagram at D-D in fig. 8.

The machine comprises a machine body 10, a pit 11, a second wedge groove 12, a first wedge block 13, a first locking cylinder 14, a die seat 20, a die holder 30, a wedge surface 31, a backing plate 32, a mounting part 33, a limiting protrusion 34, a rear through assembly 40, a rear through rod 41, a rear through screw sleeve 42, a screw sleeve fixing seat 43, a first block 50, a rear through hole 51, a second block 60, a locking groove 70, a first wedge block 71, a second wedge block 72, a fastening piece 73, a die locking mechanism 80, a second locking cylinder 81, a bottom plate 82, a second wedge block 83, a third wedge block 84, a locking groove 85 and a wedge cover plate 86.

Detailed Description

The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only, and are not intended to limit the present application.

The block locking type lathe bed reinforcing mechanism described in the embodiment mainly aims to solve the problems that a supporting structure behind a punching die seat in an existing cold header is easy to deform, and the reliability of installation of a through assembly and the compactness of the whole structure are improved.

As shown in fig. 1 to 9, the block locking type lathe bed reinforcing mechanism described in this embodiment includes a lathe bed 10 made of a metal material, a die holder 20 and a punch holder 30 which are disposed opposite to each other are disposed on the lathe bed 10, and a rear discharge assembly 40 disposed on the lathe bed 10 and located on a side of the punch holder 30 away from the die holder 20, for assisting operations such as ejection of a workpiece.

Specifically, the bed body 10 further comprises a first block 50 and a second block 60 integrally formed with the bed body 10, the first block 50 and the second block 60 are convexly arranged on the bed body 10 and located between the die holder 30 and the rear exit assembly 40, a foundation is provided for a subsequent reinforcing and locking structure, and the vertical height of the top end of the first block 50 is greater than that of the top end of the second block 60.

A locking groove 70 is concavely formed in the bed body 10 between the first block 50 and the second block 60, and an inner wall of the locking groove 70 is formed by opposite side walls of the first block 50 and the second block 60, forming a space for accommodating locking members.

The die holder 30 is fixed to the bed 10 by a die locking mechanism 80 and abuts against a side of the first block 50 facing away from the second block 60, so that a part of the reaction force generated during the operation of the die holder 30 is transmitted to the first block 50.

For the operation of the rear exit assembly 40, the first block 50 is provided with a rear through hole 51. The rear exit assembly 40 is mounted on the second block 60 and comprises a rear exit rod 41, a rear exit screw 42 and a screw sleeve fixing seat 43 for mounting and fixing the rear exit screw 42, the rear exit rod 41 extends into the rear through hole 51 and is matched with the die holder 30, the rear exit screw 42 is used for adjusting the ejection length of the rear exit rod 41, the screw sleeve fixing seat 43 is fixed on one side of the first block 50 facing the second block 60, and the bottom end of the screw sleeve fixing seat 43 is supported at the bottom of the locking groove 70.

The locking groove 70 is internally provided with a first wedge 71, a second wedge 72 and a fastener 73, the first wedge 71 is fixed on one side of the screw sleeve fixing seat 43 facing the second block 60, the first wedge 71 is provided with a wedge surface facing the second block 60, the wedge surface and the second block 60 jointly define a first wedge groove, the second wedge 72 is accommodated in the first wedge groove, the wedge surface of the second wedge 72 is attached to the wedge surface of the first wedge 71, and the bottom end of the fastener 73 vertically penetrates through the second wedge 72 and is locked at the bottom of the locking groove 70, so that the wedge surface of the second wedge 72 presses the wedge surface of the first wedge 71.

Referring to fig. 2 and 4, when the fastener 73 is tightened, it tightens the second wedge 72 toward the bottom of the locking groove 70, and as the wedge surfaces of the first wedge 71 and the second wedge 72 are engaged, the second wedge 72 moves downward while applying a force to the wedge surface of the first wedge 71, which force tightly presses the wedge surface of the second wedge 72 against the wedge surface of the first wedge 71, and as the first wedge 71 is fixed to the sleeve holder 43, the sleeve holder 43 is fixed to the first block 50, and the other side thereof (through the first wedge 71 and the second wedge 72) forms a wedge-shaped locking with the second block 60. In this way, the entire sleeve holder 43 is securely locked between the first block 50 and the second block 60.

Meanwhile, the second block 60 serves as a solid base, supports are provided for the screw sleeve fixing seat 43, and the screw sleeve fixing seat 43 is connected with the first block 50, so that the support on the rear part of the first block 50 is indirectly and effectively enhanced, the rigidity of the first block 50 area is obviously improved, the deformation of the first block 50 area caused by stress during the working of the die holder 30 is effectively restrained, and the stability and the machining precision of the key stress area of the lathe bed are ensured. In the present embodiment, since the screw sleeve fixing seat 43 of the rear exit assembly 40 is directly mounted and fixed on the stable structure formed by the first block 50, the second block 60 and the locking mechanism together, no additional conventional mounting bracket is required, thereby simplifying the overall mounting structure of the rear exit assembly 40, reducing the manufacturing cost and improving the reliability of the mounting of the rear exit assembly 40 and the compactness of the overall structure of the bed.

In some embodiments, as shown in fig. 1 to 5, the bed 10 is concavely provided with a pit 11 for accommodating the punch holder 30, the first block 50 cooperates with the bed 10 to form an inner pit wall of the pit 11, so that the first block 50 not only serves as a base for mounting the rear reinforcing and rear passing-out assembly 40, but also forms an inner pit wall of the pit 11 together with other parts of the bed 10, which makes the structure more compact and integral. The two ends of the die holder 30 in the length direction are respectively provided with a wedge surface 31, the wedge surfaces 31 and the inner walls of the pits 11 together define a second wedge groove 12, and a first wedge block 13 which is pressed against the wedge surfaces 31 to form locking fit is arranged in the second wedge groove 12. By pressing the first wedge-shaped block 13 into the second wedge-shaped groove 12, the wedge surface of the first wedge-shaped block can be tightly pressed against the wedge surface 31 of the die holder 30, so that a stable locking fit is formed, a gap between the die holder 30 and the pit 11 is effectively eliminated, and the installation rigidity and the positioning precision of the die holder are improved.

In some embodiments, as shown in fig. 3,5 and 6, a first locking cylinder 14 is fixedly installed on the bed body 10, and a piston rod of the first locking cylinder 14 is connected to the first wedge block 13, so as to selectively drive the first wedge block 13 to press against the wedge surface 31. Specifically, the piston rod of each first locking cylinder 14 is connected (e.g. driven by a threaded connection, a pin connection or a direct abutment) with the corresponding first wedge block 13. By controlling the oil inlet and oil return of the first locking oil cylinder 14, the piston rod of the first locking oil cylinder can be driven to extend or retract, so that the first wedge-shaped block 13 can be selectively driven to move along the wedge-shaped direction of the second wedge-shaped groove 12, and further is pressed against the wedge-shaped surface 31 of the die holder 30 to realize locking, or is retracted from the wedge-shaped surface 31 to realize loosening.

In some embodiments, as shown in fig. 4 to 9, the mold locking mechanism 80 includes a second locking cylinder 81, a bottom plate 82, a second wedge block 83 and a third wedge block 84 opposite to the second wedge block 83, the bottom plate 82 is detachably mounted at the pit bottom of the pit 11, the bottom plate 82 is provided with a locking groove 85, the third wedge block 84 is detachably mounted at the bottom of the mold base 30, the second wedge block 83 and the third wedge block 84 are accommodated in the locking groove 85, sides of the second wedge block 83 and the third wedge block 84 facing away from each other are respectively in contact with different inner groove walls of the locking groove 85, the second locking cylinder 81 is fixedly mounted on the bed body 10, and a piston rod of the second locking cylinder 81 extends into the locking groove 85 and is fixedly connected with the second wedge block 83, so as to drive the second wedge block 83 to move between a locking position and a releasing position in the locking groove 85, wherein sides of the second wedge block 83 facing away from each other are respectively in contact with the top surfaces of the second wedge block 84 and the third wedge block 84, and the top surfaces of the second wedge block 84 are respectively pressed against each other.

With the above structure, when the die holder 30 needs to be locked, the piston rod of the second locking cylinder 81 extends to drive the second wedge 83 to move towards the locking position, during this process, the wedge surface of the second wedge 83 and the wedge surface of the third wedge 84 slide relatively and squeeze each other, and due to the action of the wedge surfaces, the second wedge 83 and the third wedge 84 are propped open in the direction perpendicular to the movement direction thereof, so that the sides facing away from each other are respectively and tightly propped against the inner groove wall of the locking groove 85 to form a firm locking fit, thereby locking the die holder 30 (indirectly via the bottom plate 82) provided with the third wedge 84 on the bed body 10. When the die holder 30 needs to be released (for example, the die is replaced), the piston rod of the second locking cylinder 81 moves reversely to drive the second wedge 83 to move toward the release position, at this time, the pressing force between the wedge surface of the second wedge 83 and the wedge surface of the third wedge 84 is released, a movable gap is formed between the two, the pressing force between the side surfaces facing away from each other and the inner groove wall of the locking groove 85 also disappears, and the die holder 30 can be conveniently moved out or adjusted due to release of the locking fit.

In some embodiments, as shown in fig. 4, 6 and 7, a backing plate 32 is fixedly installed on the side of the die holder 30 facing the first block 50, a mounting portion 33 is convexly provided on the bottom edge of the backing plate 32, and a notch is formed on the bottom plate 82 at the edge of the side facing the mounting portion 33, and the notch cooperates with the mounting portion 33 to jointly define the locking groove 85. When the punch holder 30 (with its backing plate 32 and mounting portion 33) is assembled with the base plate 82, the notch in the base plate 82 cooperates with the mounting portion 33 on the backing plate 32 to cooperatively define the aforementioned locking slot 85. This design allows for a more precise formation of the locking groove 85 and a portion of the groove wall is directly formed by the extension of the punch holder 30 (i.e., the mounting portion 33), enhancing the structural integrity.

In some embodiments, as shown in fig. 7 and 8, the mounting portion 33 is provided with a plurality of limiting protrusions 34 protruding toward one side of the bottom plate 82, the plurality of limiting protrusions 34 extend vertically and are arranged at intervals along the axial direction of the second locking cylinder 81, and the third wedge block 84 is provided with a clamping groove matched with each limiting protrusion 34. During installation, the clamping grooves of the third wedge-shaped blocks 84 are mutually clamped with the plurality of limiting protrusions 34 on the installation part 33, so that the third wedge-shaped blocks 84 are guided and limited, and the third wedge-shaped blocks 84 are prevented from moving along the arrangement direction of the limiting protrusions 34 or rotating around a vertical axis. In addition, through the mutual clamping of draw-in groove and spacing protruding 34, compare and install with fastener such as using bolt, it is more convenient.

In some embodiments, as shown in fig. 9, a wedge cover 86 is disposed on the upper surface of the bottom plate 82, the wedge cover 86 covers the top opening of the notch, a positioning slot is formed at the bottom of the die holder 30 corresponding to the position of the wedge cover 86, and the wedge cover 86 is adapted to be accommodated in the positioning slot. When the die holder 30 is installed in place, the wedge cover 86 can be accommodated in the positioning groove, which not only plays a role in sealing to avoid the movement of the second wedge 83 from wearing the die holder 30, but also assists in positioning the die holder 30 when the die holder 30 is installed, and is convenient for assembly.

According to the block locking type lathe bed reinforcing mechanism provided by the embodiment of the application, the second block matched with the first block is arranged on the lathe bed, and the screw sleeve fixing seat of the rear passing-out assembly is locked and fixed by utilizing the locking groove and the wedge block mechanism which are arranged between the two blocks, so that the second block provides direct and firm support for the screw sleeve fixing seat and the rear part of the first block, the support rigidity of the first block is effectively enhanced, the stress deformation of the first block during working is restrained, and therefore, the stability and the machining precision of a key stress area of the lathe bed are improved.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present application, and the present application is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (7)

1. The block locking type lathe bed reinforcing mechanism comprises a lathe bed made of metal materials, wherein a punching die seat and a punching die seat which are oppositely arranged are arranged on the lathe bed, and a rear passing-out assembly which is arranged on the lathe bed and is positioned on one side of the punching die seat, which is away from the punching die seat, and the block locking type lathe bed reinforcing mechanism is characterized by further comprising a first block, a second block and a locking groove, wherein the first block and the second block are integrally formed with the lathe bed; the first building block and the second building block are convexly arranged on the bed body and positioned between the die holder and the rear through-out assembly, the vertical height of the top end of the first building block is larger than that of the top end of the second building block, the locking groove is positioned between the first building block and the second building block, the inner groove wall of the locking groove is formed by opposite side walls of the first building block and the second building block, the die holder is fixed on the bed body through a die locking mechanism and is propped against one side of the first building block, which is far away from the second building block, the first building block is provided with a rear through hole, the rear through-out assembly is arranged on the second building block and comprises a rear through-out rod, a rear through-screw sleeve and a screw sleeve fixing seat for installing and fixing the rear through-screw sleeve, the rear through-out rod stretches into the rear through hole and is matched with the die holder, the rear through-out screw sleeve is used for adjusting the ejection length of the rear through-out rod, the screw sleeve is fixed on one side of the first building block, the wedge is provided with a wedge block, the wedge block is fixed on one side of the first building block, which is far towards the bottom of the second building block, the first wedge is provided with a wedge block, the wedge is fixed on one side of the first wedge block is provided with a locking groove, the wedge is fixed on one side of the wedge block, the wedge is fixed on the bottom of the wedge is opposite the side of the first wedge block, the wedge surface and the second building block jointly define a first wedge-shaped groove; the bottom end of the fastening piece vertically penetrates through the second wedge block and is locked at the bottom of the locking groove, so that the wedge surface of the second wedge block presses the wedge surface of the first wedge block.

2. The block locking type lathe bed reinforcing mechanism of claim 1, wherein the lathe bed is concavely provided with a pit for accommodating the punching seat, the first block is matched with the lathe bed to form an inner pit wall of the pit, wedge faces are respectively arranged at two ends of the punching seat in the length direction, the wedge faces and the inner pit wall of the pit jointly define a second wedge-shaped groove, and a first wedge-shaped block which is pressed against the wedge faces to form locking fit is arranged in the second wedge-shaped groove.

3. The block locking type lathe bed reinforcing mechanism according to claim 2, wherein a first locking oil cylinder is fixedly installed on the lathe bed, and a piston rod of the first locking oil cylinder is connected to the first wedge block and used for selectively driving the first wedge block to press against the wedge surface.

4. The block locking type lathe bed reinforcing mechanism according to claim 2, wherein the mold locking mechanism comprises a second locking oil cylinder, a bottom plate, a second wedge block and a third wedge block which is opposite to the second wedge block, the bottom plate is detachably arranged at the pit bottom of the pit, a locking groove is formed in the bottom plate, the third wedge block is detachably arranged at the bottom of the mold pressing seat, the second wedge block and the third wedge block are accommodated in the locking groove, the side faces of the second wedge block and the third wedge block, which are away from each other, are respectively contacted with different inner groove walls of the locking groove, the second locking oil cylinder is fixedly arranged on the lathe bed, a piston rod of the second locking oil cylinder extends into the locking groove and is fixedly connected with the second wedge block, the piston rod is used for driving the second wedge block to move between a locking position and a releasing position in the locking groove, the side faces of the second wedge block and the third wedge block are contacted with each other in the locking groove, the side faces of the second wedge block and the third wedge block are respectively pressed against each other to form a clearance between the second wedge block and the second wedge block.

5. The block locking type lathe bed reinforcing mechanism according to claim 4, wherein a base plate is fixedly installed on one side of the die holder facing the first block, a mounting portion is convexly arranged on the bottom edge of the base plate, a notch is formed in the edge of one side of the base plate facing the mounting portion, and the notch and the mounting portion are matched to jointly define the locking groove.

6. The block locking type lathe bed reinforcing mechanism according to claim 5, wherein a plurality of limiting protrusions are convexly arranged on one side, facing the bottom plate, of the mounting portion, the limiting protrusions vertically extend and are distributed at intervals along the axial direction of the second locking oil cylinder, and clamping grooves matched with the limiting protrusions are formed in the second wedge-shaped blocks.

7. The block locking type lathe bed reinforcing mechanism according to claim 6, wherein a wedge cover plate is arranged on the upper plate surface of the bottom plate and covers the top side opening of the notch, a positioning groove is formed in the bottom of the die holder at a position corresponding to the wedge cover plate, and the wedge cover plate is suitable for being accommodated in the positioning groove.