CN115256027A - Cutting tool bit - Google Patents

Abstract

The invention relates to the technical field of cutter bits, in particular to a cutter bit which comprises a fixed seat, wherein the upper end key of the fixed seat is connected with the cutter bit, the middle part of the fixed seat is provided with an air suction mechanism, the air suction mechanism can suck chips generated in cutting, the air suction mechanism comprises a magnetic ring, a connecting rod, a clamping ring, an air inlet, a chip removal port and a fan, the magnetic ring is sleeved in the middle of the outer surface of the fixed seat, the connecting rod is fixedly connected to the left side of the outer surface of the upper end of the magnetic ring, the clamping ring is fixedly connected to the upper end of the connecting rod, the air inlet is formed in the upper end of the cutter bit, the chip removal port is formed in the lower part of the outer surface of the front end of the fixed seat, and the fan is rotatably connected to the middle inside of the fixed seat.

Description

a cutting head

technical field

The invention relates to the technical field of cutting bits, in particular to a cutting bit.

Background technique

As the name suggests, the cutter head is the head of the tool, which can be divided into diamond cutter head, alloy cutter head, and carbon steel cutter head. Its performance is high temperature resistance, wear resistance, and good sharpness. It is a necessary product for metal processing, lathe processing, and stone processing. With the advancement of science and technology, the cutter head products are also changing with each passing day, and new products are constantly being launched.

However, for the internal processing of tubular workpieces, the debris generated by cutting will remain inside the workpiece, and the accumulation of debris will affect the cutting operation. The traditional chip suction method is costly and cannot remove the debris. After secondary crushing, it is easy to cause blockage:

To this end, a cutting head is proposed.

Contents of the invention

The purpose of the present invention is to provide a cutting head, which can use the power provided by the rotation of the workpiece itself to suck out the debris generated inside the workpiece, saving costs, and at the same time, it can perform secondary crushing on the debris to prevent the debris from being blocked when sucked out. To solve the problems raised in the background technology above.

In order to achieve the above object, the present invention provides the following technical solutions: a cutting bit, including a fixed seat, the upper end of the fixed seat is keyed to a cutter head, and the middle part of the fixed seat is provided with a suction mechanism, and the suction mechanism can Sucks away debris generated during cutting.

Connect the cutter head with the fixed seat key, then align the cutter head with the rotating workpiece, and use the cutter head to cut the workpiece. With the cutting operation, the cutter head extends into the inside of the workpiece to realize the cutting inside the workpiece. The suction mechanism can suck out the debris generated during cutting from the inside of the workpiece, so as to avoid the influence of debris on the cutting operation.

Preferably, the air suction mechanism includes a magnetic ring, a connecting rod, a clasp, an air inlet, a chip discharge port and a fan, the magnetic ring is sleeved in the middle of the outer surface of the fixing seat, and the connecting rod is fixedly connected to the magnetic ring On the left side of the outer surface of the upper end, the snap ring is fixedly connected to the upper end of the connecting rod, the air inlet is opened at the upper end of the cutter head, the chip discharge port is opened at the lower part of the outer surface of the front end of the fixing seat, and the fan is rotatably connected to in the inner middle of the holder.

When cutting the inside of the workpiece, first clamp the snap ring on the outer surface of the workpiece, then attach the cutter head to the inner surface of the workpiece, and then rotate the workpiece. With the cutting operation, the cutter head extends into the inside of the workpiece to realize the inner surface of the workpiece. Cutting, at this time, the workpiece drives the snap ring to rotate and cooperates with the connecting rod to drive the magnetic ring to rotate. When the magnetic ring rotates, it drives the fan to rotate under the action of magnetic force, thereby generating air flow. At this time, the air flow is used to pass the cutting debris from the inside of the workpiece. The air inlet sucks into the inside of the fixed seat, and then is discharged from the chip discharge port, which has achieved the purpose of cleaning the debris inside the workpiece, ensuring that the cutting operation of the workpiece will not be affected. It should be noted that the conventional metal processing materials are all non-magnetic metals. Therefore cutting chips are not affected by the magnetic force of the magnetic ring.

Preferably, the middle part of the inner and outer surfaces of the fixing seat is provided with a first groove, and the magnetic ring and the fan are respectively rotated and clamped inside the first groove, and the magnetic ring and the fan are magnetically attracted to each other, and The magnetic attraction force of the magnetic ring to the fan is greater than the sum of the gravity of the fan itself and the friction between the fan and the first groove, and the inner wall of the snap ring is a hexagonal side.

The magnetic ring and the fan are limited by the first groove to prevent the displacement of the magnetic ring and the fan with the insertion of the cutter head and affect the cleaning of debris, and setting the inside of the snap ring as a hexagonal edge can improve the clip The engagement effect between the ring and the workpiece reduces the chance of slippage between the snap ring and the workpiece, and ensures the normal rotation of the suction mechanism.

Preferably, a crushing mechanism is provided inside the cutter head, and the crushing mechanism includes a first crushing tooth, a second crushing tooth, a second groove, a linkage tooth and a linkage shaft, and the first crushing tooth is rotatably connected to the knife At the center of the inner upper end of the head, the second crushing teeth are equidistantly engaged with the periphery of the first crushing teeth, the second groove is opened on the upper part of the inner surface of the cutter head, and the linkage teeth are fixedly connected to the second groove inside, and the interlocking teeth mesh with the second crushing teeth, and the interlocking shaft is fixedly connected between the outer surface of the lower end of the first crushing tooth and the outer surface of the upper end of the fan.

When the fan rotates, the first crushing tooth is driven to rotate by the linkage shaft. Since the first crushing tooth meshes with the second crushing tooth, the second crushing tooth meshes with the linkage tooth, so that the first crushing tooth and the second crushing tooth rotate , so as to crush the incoming debris and avoid clogging caused by excessive debris volume.

Preferably, the second groove is opened on the upper part of the inner surface of the cutter head, and the interlocking teeth are located inside the second groove.

The second crushing tooth protrudes into the second groove when meshing with the linkage tooth, so that it is limited by the second groove and can prevent the crushing mechanism from loosening.

Preferably, metal sheets are fixedly connected to both sides of the linkage teeth, and a clockwise protrusion is fixedly connected to the metal sheet, and the protrusion is made of whetstone material.

When the tooth edge of the second crushing tooth enters into mesh with the linkage tooth, friction will be generated. At this time, the tooth edge of the second crushing tooth can be polished through the protrusion on the linkage tooth to ensure the sharpness of the tooth edge of the second crushing tooth, and then The crushing efficiency is guaranteed.

Preferably, the metal sheet is elastic metal, and the metal sheet protrudes in an arc shape, and a gap is opened between the metal sheet and the linkage teeth.

The protrusion is arranged on the elastic metal sheet and connected with the linkage teeth, so that the tooth edge of the second crushing tooth contacts with the linkage teeth and then squeezes the elastic metal sheet, so that the elastic metal sheet deforms into the gap, reducing the distance between the second crushing tooth and the linkage teeth. Friction prevents the blade of the second crushing tooth from being ground without being blunt and affecting the life of the blade. Grinding can only be achieved when the blade becomes blunt and the deformation of the elastic metal sheet is limited.

Preferably, the interior of the gap is filled with sponge, and holes are opened on the surface of the metal sheet.

The sponge is soaked with water before cutting. When the tooth edge of the second crushing tooth 42 presses the metal sheet 441 to deform, the metal sheet 441 squeezes the sponge, so that the water in the sponge is squeezed out and overflows to the surface of the protrusion 442 through the hole. The sanding effect is further increased by wetting the projections 442 .

Compared with prior art, the beneficial effect of the present invention is:

1. The workpiece drives the snap ring to rotate and cooperates with the connecting rod to drive the magnetic ring to rotate. When the magnetic ring rotates, it drives the fan to rotate under the action of magnetic force, thereby generating airflow. At this time, the airflow will use the airflow to pass the cutting debris from the inside of the workpiece through the air inlet. It is sucked into the inside of the fixed seat, and then discharged from the chip discharge port, which has achieved the purpose of cleaning the debris inside the workpiece and ensured that the cutting operation of the workpiece will not be affected;

2. When the fan rotates, the first crushing tooth is driven to rotate by the linkage shaft. Since the first crushing tooth meshes with the second crushing tooth, the second crushing tooth meshes with the linkage tooth, so that the first crushing tooth and the second crushing tooth Rotation takes place to break up the incoming debris and avoid clogging due to excessive volume of debris.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a combination view of the fan and the fixing seat of the present invention;

Fig. 3 is a combined view of the fixing seat and the first groove of the present invention;

Fig. 4 is a structural schematic diagram of the crushing mechanism of the present invention;

Fig. 5 is a schematic diagram of the linkage tooth structure of the present invention.

In the figure: 1. Fixed base; 2. Cutter head; 3. Suction mechanism; 31. Magnetic ring; 32. Connecting rod; 33. Snap ring; 34. Air inlet; 35. Chip discharge port; 36. Fan; 37 , first groove; 4, crushing mechanism; 41, first crushing tooth; 42, second crushing tooth; 43, second groove; 44, linkage tooth; 441, metal sheet; 442, protrusion; 443, gap ; 45, linkage shaft.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to Fig. 1 to Fig. 5, the present invention provides a technical solution:

A kind of cutting bit, as shown in Figure 1, comprises fixed base 1, and the upper end key of described fixed base 1 is connected with cutter head 2, and the middle part of fixed base 1 is provided with suction mechanism 3, and suction mechanism 3 can Suck away the debris generated during cutting;

When working, connect the cutter head 2 with the fixed seat 1, then align the cutter head 2 with the rotating workpiece, and use the cutter head 2 to cut the workpiece. With the cutting operation, the cutter head 2 extends into the inside of the workpiece, The cutting inside the workpiece is realized, and the debris generated during cutting can be sucked out from the inside of the workpiece through the suction mechanism 3, so as to avoid the impact of the debris on the cutting operation.

As an embodiment of the present invention, as shown in FIGS. 1 to 3 , the air suction mechanism 3 includes a magnetic ring 31, a connecting rod 32, a snap ring 33, an air inlet 34, a chip removal port 35 and a fan 36. The magnetic ring 31 is sleeved in the middle of the outer surface of the fixed seat 1, the connecting rod 32 is fixedly connected to the left side of the outer surface of the upper end of the magnetic ring 31, and the snap ring 33 is fixedly connected to the upper end of the connecting rod 32. The tuyere 34 is set on the upper end of the cutter head 2, the chip discharge port 35 is set on the lower part of the outer surface of the front end of the fixed seat 1, and the fan 36 is rotatably connected to the inner middle part of the fixed seat 1;

The middle part of the inner and outer surfaces of the fixed seat 1 is provided with a first groove 37, and the magnetic ring 31 and the fan 36 are respectively rotated and clamped in the inside of the first groove 37, and the magnetic ring 31 and the fan 36 are magnetically connected to each other. Attract each other, and the magnetic attraction force of the magnetic ring 31 to the fan 36 is greater than the sum of the self-gravity of the fan 36 and the friction force between the fan 36 and the first groove 37, and the inner wall of the snap ring 33 is a hexagonal edge;

When working, when cutting the inside of the workpiece, first clamp the snap ring 33 on the outer surface of the workpiece, then attach the cutter head 2 to the inner surface of the workpiece, and then rotate the workpiece. With the cutting operation, the cutter head 2 extends into the inside of the workpiece , to realize the cutting inside the workpiece. At this time, the workpiece drives the snap ring 33 to rotate and cooperates with the connecting rod 32 to drive the magnetic ring 31 to rotate. When the magnetic ring 31 rotates, it drives the fan 36 to rotate under the action of magnetic attraction, thereby generating air flow. At this time Utilize the airflow to suck the debris generated by cutting from inside the workpiece through the air inlet 34 into the interior of the fixed seat 1, and then discharge it through the chip discharge port 35, which has achieved the purpose of cleaning the debris inside the workpiece and ensured that the cutting operation of the workpiece will not be affected. It should be noted that the conventional hardware processing materials are all non-magnetic metals, so the cutting chips will not be affected by the magnetic force of the magnetic ring 31, and the magnetic ring 31 and the fan 36 are limited by the first groove 37 to prevent the When the head 2 is stretched in, the magnetic ring 31 and the fan 36 are displaced to affect the cleaning of debris, and setting the inside of the snap ring 33 as a hexagonal edge can improve the engagement effect between the snap ring 33 and the workpiece, and reduce the contact between the snap ring 33 and the workpiece. The slipping probability of workpiece hinders the normal rotation of suction mechanism 3.

As an embodiment of the present invention, as shown in FIG. 4 and FIG. 5 , a crushing mechanism 4 is provided inside the cutter head 2, and the crushing mechanism 4 includes a first crushing tooth 41, a second crushing tooth 42, a Two grooves 43, linkage teeth 44 and linkage shaft 45, the first crushing teeth 41 are rotatably connected to the center of the inner upper end of the cutter head 2, and the second crushing teeth 42 are equidistantly engaged with the periphery of the first crushing teeth 41 , the second groove 43 is set on the upper part of the inner surface of the cutter head 2, the linkage tooth 44 is fixedly connected to the inside of the second groove 43, and the linkage tooth 44 is engaged with the second crushing tooth 42, so The linkage shaft 45 is fixedly connected between the outer surface of the lower end of the first crushing tooth 41 and the outer surface of the upper end of the fan 36;

Both sides of the linkage teeth 44 are fixedly connected with a metal sheet 441, and the clockwise direction of the metal sheet 441 is fixedly connected with a protrusion 442, and the protrusion 442 is made of a whetstone;

The metal sheet 441 is elastic metal, and the metal sheet 441 protrudes in an arc shape, and a gap 443 is opened between the metal sheet 441 and the linkage teeth 44;

The interior of the gap 443 is filled with sponge, and the surface of the metal sheet 441 is provided with holes;

During operation, when the fan 36 rotates, the first crushing tooth 41 is driven to rotate by the linkage shaft 45. Since the first crushing tooth 41 meshes with the second crushing tooth 42, the second crushing tooth 42 meshes with the linkage tooth 44, so that the first crushing tooth 41 meshes with the second crushing tooth 44, so that The first crushing tooth 41 and the second crushing tooth 42 rotate to crush the incoming debris to avoid blockage caused by excessive debris volume, and the second crushing tooth 42 extends into the second groove when meshing with the linkage tooth 44 43, so that it is limited by the second groove 43, which can prevent the crushing mechanism 4 from loosening. When the tooth edge of the second crushing tooth 42 enters into the meshing with the linkage tooth 44, friction will be generated. The protrusion 442 on the 44 grinds the tooth edge of the second crushing tooth 42 to ensure the sharpness of the tooth edge of the second crushing tooth 42, thereby ensuring the crushing efficiency. connected so that the tooth edge of the second crushing tooth 42 is in contact with the interlocking tooth 44 and squeezes the elastic metal sheet 441, so that the elastic metal sheet 441 deforms in the gap 443, reducing the friction between the second crushing tooth 42 and the interlocking tooth 44, and avoiding The tooth edge of the second crushing tooth 42 is ground without being blunt, which affects the life of the tooth edge. Only when the tooth edge becomes blunt and the deformation of the elastic metal sheet 441 is limited can grinding be realized. Water injection before cutting The sponge is soaked, and when the tooth edge of the second crushing tooth 42 presses the metal sheet 441 and deforms, the metal sheet 441 squeezes the sponge, so that the water in the sponge is squeezed out and overflows to the surface of the protrusion 442 through the hole, and through the Wet 442, which further improves the sanding effect.

working principle:

When working, when cutting the inside of the workpiece, first clamp the snap ring 33 on the outer surface of the workpiece, then attach the cutter head 2 to the inner surface of the workpiece, and then rotate the workpiece. With the cutting operation, the cutter head 2 extends into the inside of the workpiece , to realize the cutting inside the workpiece. At this time, the workpiece drives the snap ring 33 to rotate and cooperates with the connecting rod 32 to drive the magnetic ring 31 to rotate. When the magnetic ring 31 rotates, it drives the fan 36 to rotate under the action of magnetic attraction, thereby generating air flow. At this time Utilize the airflow to suck the debris generated by cutting from inside the workpiece through the air inlet 34 into the interior of the fixed seat 1, and then discharge it through the chip discharge port 35, which has achieved the purpose of cleaning the debris inside the workpiece and ensured that the cutting operation of the workpiece will not be affected. It should be noted that the conventional hardware processing materials are all non-magnetic metals, so the cutting chips will not be affected by the magnetic force of the magnetic ring 31, and the magnetic ring 31 and the fan 36 are limited by the first groove 37 to prevent the When the head 2 is stretched in, the magnetic ring 31 and the fan 36 are displaced to affect the cleaning of debris, and setting the inside of the snap ring 33 as a hexagonal edge can improve the engagement effect between the snap ring 33 and the workpiece, and reduce the contact between the snap ring 33 and the workpiece. The slipping probability of the workpiece ensures the normal rotation of the air suction mechanism 3. When the fan 36 rotates, the first crushing tooth 41 is driven to rotate by the linkage shaft 45. Since the first crushing tooth 41 meshes with the second crushing tooth 42, the second The crushing teeth 42 mesh with the interlocking teeth 44, so that the first crushing teeth 41 and the second crushing teeth 42 rotate, thereby crushing the incoming debris to avoid blockage caused by excessive debris volume, while the second crushing teeth 42 When meshing with the linkage tooth 44, it extends into the inside of the second groove 43, so that it is limited by the second groove 43, which can prevent the crushing mechanism 4 from loosening. Friction will be generated during meshing. At this time, the tooth edge of the second crushing tooth 42 can be polished by the protrusion 442 on the linkage tooth 44 to ensure the sharpness of the tooth edge of the second crushing tooth 42, thereby ensuring the crushing efficiency. 442 is arranged on the elastic metal sheet 441 and is connected with the interlocking tooth 44, so that the tooth edge of the second crushing tooth 42 contacts the interlocking tooth 44 and squeezes the elastic metal sheet 441, so that the elastic metal sheet 441 deforms in the gap 443, reducing the second The friction between the crushing teeth 42 and the linkage teeth 44 prevents the blades of the second crushing teeth 42 from being ground without being blunt and affecting the life of the blades. Grinding can only be achieved under limited circumstances. Before cutting, inject water to soak the sponge. When the tooth edge of the second crushing tooth 42 presses the metal sheet 441 to deform, the metal sheet 441 squeezes the sponge, so that the water in the sponge is squeezed out. The surface of the protrusion 442 is overflowed through the hole, and the grinding effect is further improved by wetting the protrusion 442 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a cutting tool bit, includes fixing base (1), its characterized in that, the last end key-type of fixing base (1) is connected with tool bit (2), and the middle part of fixing base (1) is equipped with the mechanism (3) that induced drafts, and induced drafts the piece that produces when the mechanism (3) can be with the cutting and siphons away.

2. The cutter head according to claim 1, wherein the air suction mechanism (3) comprises a magnetic ring (31), a connecting rod (32), a snap ring (33), an air inlet (34), a chip removal port (35) and a fan (36), the magnetic ring (31) is sleeved on the middle portion of the outer surface of the fixed seat (1), the connecting rod (32) is fixedly connected to the left side of the outer surface of the upper end of the magnetic ring (31), the snap ring (33) is fixedly connected to the upper end of the connecting rod (32), the air inlet (34) is arranged at the upper end of the cutter head (2), the chip removal port (35) is arranged at the lower portion of the outer surface of the front end of the fixed seat (1), and the fan (36) is rotatably connected to the middle portion of the inner portion of the fixed seat (1).

3. The cutting tool bit as claimed in claim 2, wherein the fixing seat (1) has a first recess (37) formed in the middle of the inner and outer surfaces thereof, the magnetic ring (31) and the fan (36) are magnetically attracted to each other, the magnetic attraction of the magnetic ring (31) to the fan (36) is greater than the sum of the gravity of the fan (36) and the friction between the fan (36) and the first recess (37), the magnetic ring (31) and the fan (36) are rotatably engaged with the first recess (37), and the inner wall of the snap ring (33) is a hexagonal edge.

4. The cutting bit according to claim 2, wherein the bit (2) is provided with a crushing mechanism (4) inside, the crushing mechanism (4) comprises a first crushing tooth (41), a second crushing tooth (42), a linkage tooth (44) and a linkage shaft (45), the first crushing tooth (41) is rotatably connected to the center of the inner upper end of the bit (2), the second crushing tooth (42) is equidistantly engaged with the periphery of the first crushing tooth (41), the linkage tooth (44) is fixedly connected to the upper portion of the inner surface of the bit (2), the linkage tooth (44) is engaged with the second crushing tooth (42), and the linkage shaft (45) is fixedly connected between the outer surface of the lower end of the first crushing tooth (41) and the outer surface of the upper end of the fan (36).

5. Cutting bit according to claim 4, characterized in that the second groove (43) opens out in the upper part of the inner surface of the bit (2) and the cooperating teeth 44 are located inside the second groove 43.

6. Cutting head according to claim 4, characterized in that a metal sheet (441) is fixedly connected to each side of the coupling tooth (44), and a protrusion (442) is fixedly connected to the metal sheet (441) in a clockwise direction, and the protrusion (442) is made of a whetstone material.

7. The cutting bit according to claim 6, wherein the metal sheet (441) is an elastic metal, the metal sheet (441) is protruded in an arc shape, and a gap (443) is formed between the metal sheet (441) and the linkage teeth (44).

8. The cutting insert as claimed in claim 7, wherein the gap (443) is filled with sponge and the surface of the metal sheet (441) is perforated.

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