CN213764828U - Threading die processing device - Google Patents
Threading die processing device Download PDFInfo
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- CN213764828U CN213764828U CN202022751758.2U CN202022751758U CN213764828U CN 213764828 U CN213764828 U CN 213764828U CN 202022751758 U CN202022751758 U CN 202022751758U CN 213764828 U CN213764828 U CN 213764828U
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Abstract
The utility model discloses a threading die processing device, which comprises a first disc machine, a second disc machine and a manipulator, wherein the first disc machine and the second disc machine are respectively provided with six stations; the first disc machine and the second disc machine both comprise clamps, each clamp comprises a base with a groove, a fixed block fixedly arranged on the base, a first sliding block which can slide along the direction close to or far away from the fixed block and is arranged in the groove, a second sliding block which can slide into the groove and is used for abutting against and pushing the first sliding block to slide close to the fixed block, a driving mechanism used for driving the second sliding block, and an elastic piece which is arranged in the base and is used for abutting against the first sliding block, wherein the elastic piece and the second sliding block are respectively arranged at two sides of the first sliding block along the sliding direction of the first sliding block; when the first sliding block is used for being matched with the fixed block to clamp the threading die, the elastic piece is integrally retracted into the base, the second sliding block is abutted between the first sliding block and the groove wall on one side of the groove, and the second sliding block is gradually narrowed in the direction of entering the groove. The utility model discloses device machining efficiency is higher, and the centre gripping effect is better, and processingquality is higher.
Description
Technical Field
The utility model relates to a threading die processingequipment.
Background
Because the processing of the screw die relates to a plurality of surfaces, all the surfaces of the screw die cannot be processed by one-time clamping. In the prior art, the dies are processed by a plurality of processing devices respectively, the dies need to be clamped again after processing is completed every time, and for different processing devices, the positions for clamping the dies need to be adjusted according to the processing surfaces, so that the clamping steps are complicated, and the processing efficiency is low. Meanwhile, in the clamp for clamping the threading die, because the output shaft of the driving cylinder is directly connected to the clamping block, the threading die generates larger vibration during processing, and the vibration force directly acts on the output shaft, so that the clamping effect is relatively poor; meanwhile, the service life of the driving cylinder is short.
Disclosure of Invention
The utility model aims at providing a threading die processing device, which can process all the surfaces of the threading die by clamping twice and has relatively high processing efficiency; the clamp for clamping the screw die has the advantages of good clamping effect, small vibration of the screw die in the machining process, high machining quality and long service life of the driving mechanism.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a threading die processing device comprises a first disc machine with six stations, a second disc machine with six stations and a manipulator, wherein the manipulator is used for feeding threading dies processed in the first disc machine into the second disc machine for continuous processing;
the first disc machine and the second disc machine both comprise clamps for clamping the dies, each clamp comprises a base with a groove, a fixed block fixedly arranged on the base, a first sliding block arranged in the groove and capable of sliding in the direction close to or away from the fixed block, a second sliding block which can enter the groove in a sliding mode and is used for abutting against and pushing the first sliding block to slide close to the fixed block, a driving mechanism used for driving the second sliding block to slide, and an elastic piece arranged in the base and used for abutting against the first sliding block, wherein the elastic piece and the second sliding block are respectively arranged on two sides of the first sliding block in the sliding direction of the first sliding block;
when the first sliding block is used for being matched with the fixed block to clamp the screw die, the elastic piece is integrally retracted into the base, the second sliding block is tightly propped between the first sliding block and the groove wall on one side of the groove, and the second sliding block is gradually narrowed in the direction of entering the groove.
Preferably, the fixed block is arranged at the top of the base, the first sliding block comprises a first bottom part which is slidably arranged in the groove and a first top part which is fixedly arranged at the upper end of the first bottom part and is used for being matched with the fixed block to clamp the threading die, and the first top part is positioned above the groove;
when the first top is used for being matched with the fixing block to clamp the screw die, the first bottom is abutted to the wall of the groove on the other side of the groove.
More preferably, a through hole is formed in the base, the through hole is located below the fixed block and penetrates through a groove wall on the other side of the groove, one end of the elastic member is fixedly arranged in the through hole, and the other end of the elastic member extends out of the groove wall on the other side of the groove and abuts against the first bottom.
More preferably, the fixture further comprises a guide shaft protruding from a wall of the groove on the other side of the groove, and the first bottom is sleeved on the guide shaft.
More preferably still, the first and second liquid crystal compositions are,
in the first disc machine, the clamp further comprises a positioning block which is fixedly arranged on the base and used for tightly abutting against one end of the threading die, and the positioning block is arranged between the fixing block and the first top;
in the second disc machine, the fixing block comprises a limiting block protruding towards the first top side face, and the limiting block is used for being clamped into the screw die.
Preferably, the second sliding block is provided with a first side surface for abutting against the first sliding block and a second side surface for abutting against a groove wall on one side of the groove, and the first side surface and the second side surface form an angle with each other.
More preferably, the first side surface is perpendicular to the sliding direction of the first sliding block, the second side surface is parallel to the driving direction of the driving mechanism, and a groove wall on one side of the groove gradually inclines to be close to the first sliding block along the direction in which the second sliding block slides into the groove.
Preferably, the clamp further comprises a pressing block fixedly arranged on the top of the base and used for pressing the second sliding block.
Preferably, the first disc machine comprises a first machine tool, a first disc which is arranged on the first machine tool and used for mounting the clamp, six first machining positions which are uniformly arranged at intervals along the circumferential direction and located on the outer side of the first disc, and five first machining seats which are arranged in the first machining positions in a one-to-one correspondence manner, wherein the first disc machine can rotate around the axis of the first machine tool.
Preferably, the second disc machine includes a second machine tool, a second disc which is arranged on the second machine tool and used for mounting the clamp and can rotate around the axis direction of the second disc machine, six second machining positions which are arranged on the second machine tool and located on the outer side of the second disc at intervals and are uniformly arranged along the circumferential direction, and five second machining seats which are arranged in the second machining positions in a one-to-one correspondence manner.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model relates to a threading die processing device, through two sets of six station disc machine cooperation manipulators, the processing to all sides of threading die can be realized to twice clamping, and the processing efficiency is relatively higher; in the fixture, the driving mechanism drives the second sliding block to slide into the groove, so that the second sliding block is tightly propped between the first sliding block and the groove wall at one side of the groove, and the first sliding block is tightly propped on the groove wall at the other side of the groove, thereby realizing the fixation of the first sliding block; the second sliding block is gradually narrowed along the direction of entering the groove, namely, one side of the second sliding block is abutted through the inclined plane, so that the fixing effect on the first sliding block is further improved, namely, the clamping effect between the first sliding block and the fixed block is improved; the die has the advantages of small vibration in the machining process, high machining quality and long service life of the driving mechanism.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a schematic structural view of a jig in a first disc machine;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view along line AA of FIG. 2;
FIG. 5 is an enlarged schematic view of J of FIG. 1;
fig. 6 is a schematic structural view of the die.
Wherein: 1. a base; 2. a fixed block; 3. a first slider; 31. a first bottom portion; 32. a first top portion; 4. a second slider; 41. a first side surface; 42. a second side surface; 5. a drive mechanism; 51. a drive cylinder; 52. a telescopic rod; 6. an elastic member; 7. a through hole; 8. a guide shaft; 9. positioning blocks; 10. briquetting; 11. a threading die; 12. a manipulator; 13. a limiting block; 14. a first machine tool; 15. a first disc; 16. a first processing seat; 17. a second machine tool; 18. a second disc; 19. and a second machining seat.
The first disc machine first position milling groove; B. chamfering the second position of the first disc machine; C. milling circular arcs at the third position of the first disc machine; D. a fourth position fillet and a point hole of the first disc machine; E. a fifth position milling plane of the first disc machine; F. a first position forming milling groove of a second disc machine; G. a second position of the second disc machine is inverted to the lower corner; H. a third position of the second disc machine mills a circular arc surface; I. the second disc machine is used for roughly milling teeth at the fourth position and finely milling teeth at the fifth position.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the die processing apparatus includes a first circular disc machine having six stations, a second circular disc machine having six stations, and a robot 12 for feeding the dies 11 processed in the first circular disc machine into the second circular disc machine to continue processing, wherein the robot 12 is further configured to feed the dies 11 into the first circular disc machine and remove the dies 11 processed in the second circular disc machine.
The first disc machine comprises a first machine tool 14, a first disc 15 which can rotate around the axis direction of the first machine tool 14 and is used for installing a clamp, six first machining positions which are uniformly arranged along the circumferential direction at intervals and are arranged on the first machine tool 14 and are positioned on the outer side of the first disc 15, and five first machining seats 16 which are arranged in the five first machining positions in a one-to-one correspondence mode. Six clamps are uniformly arranged on the first disc machine at intervals along the circumferential direction and correspond to the six first processing positions one by one.
The second disc machine comprises a second machine tool 17, a second disc 18 which is arranged on the second machine tool 17 and used for installing a clamp, can rotate around the axis direction of the second disc machine, six second machining positions which are uniformly arranged at intervals along the circumferential direction and are arranged on the second machine tool 17 and located on the outer side of the second disc 18, and five second machining seats 19 which are arranged in the five second machining positions in a one-to-one correspondence mode. Six clamps are uniformly arranged on the second disc machine at intervals along the circumferential direction and correspond to the six second machining positions one by one.
The first processing seat 16 and the second processing seat 19 each include a sliding seat capable of moving two or three axes, a milling cutter disposed on the sliding seat and capable of rotating around the axis line direction thereof, and a driving motor disposed on the sliding seat and used for driving the milling cutter.
In the first disk machine, the machining position corresponding to the robot 12 is set as a reference (zero position), and the disk machine is rotated in the counterclockwise direction: the first position of the first disc machine, the second position of the first disc machine, the third position of the first disc machine, the fourth position of the first disc machine and the fifth position of the first disc machine are sequentially arranged.
In the second disk machine, the processing station corresponding to the robot 12 is used as a reference (zero position), and the disk machine is rotated in the counterclockwise direction: the first position of the second disc machine, the second position of the second disc machine, the third position of the second disc machine, the fourth position of the second disc machine and the fifth position of the second disc machine are sequentially arranged.
Referring to fig. 6, the first disc machine sequentially processes positions a (first position), B (second position), C (third position), D (fourth position), and E (fifth position) of the die 11, and after the processing is completed, the second disc machine sequentially processes positions F (first position), G (second position), H (third position), I (fourth position, and fifth position) of the die 11.
The first disc machine and the second disc machine both comprise clamps for clamping dies, and as shown in fig. 2 to 5, the clamps comprise a base 1 with a groove, a fixed block 2 fixedly arranged on the base 1, a first sliding block 3 arranged in the groove and capable of sliding along the direction close to or away from the fixed block 2, a second sliding block 4 capable of sliding into the groove and used for abutting against and pushing the first sliding block 3 to slide close to the fixed block 2, and a driving mechanism 5 used for driving the second sliding block 4 to slide. In the present embodiment, the groove penetrates the base 1 in the front-rear direction (i.e., the up-down direction in fig. 4).
In the present embodiment, the fixing block 2 is disposed on the top of the base 1, and a gap is provided between the fixing block 2 and the top of the groove wall on the left side of the groove (see fig. 3, where the left side in fig. 3 is the left side), and the gap is used for placing the screw die 11.
In the first disc machine, the clamp further comprises a positioning block 9 which is fixedly arranged on the base 1 and used for tightly abutting against one end of the threading die 11, and the positioning block 9 is arranged between the fixing block 2 and the first sliding block 3. Through the arrangement, when the screw die 11 is placed at the top of the base 1, two adjacent side surfaces of the screw die 11 are respectively abutted to the fixing block 2 and the positioning block 9, so that the screw die 11 is positioned. A second position chamfering position of the first disc machine is reserved at one end of the threading die 11 of the positioning block 9.
In the second disc machine, as shown in fig. 5, the fixing block 2 includes a stopper 13 protruding from a side surface thereof facing the first slider 3, and the stopper 13 is configured to be engaged with the die 11. Specifically, a first disc machine is provided with a groove milled on the die 11, and the limit block 13 is used for being clamped into the groove.
The clamp further comprises an elastic piece 6 which is arranged in the base 1 and used for tightly abutting against the left side (the left side in fig. 3 is the left side) of the first sliding block 3, wherein the elastic piece 6 and the second sliding block 4 are respectively arranged on two sides of the first sliding block 3 along the sliding direction of the first sliding block, namely the second sliding block 4 is arranged on the right side (the right side in fig. 3 is the right side in fig. 3) of the first sliding block 3.
When the first sliding block 3 is used for being matched with the fixed block 2 to clamp the threading die 11, the elastic part 6 is integrally retracted into the base 1, the second sliding block 4 is tightly propped between the first sliding block 3 and the groove wall on the right side of the groove (as shown in fig. 3, the right side in fig. 3 is the right side), and the second sliding block 4 is gradually narrowed along the direction of entering the groove.
Referring to fig. 4, the second sliding block 4 has a first side surface 41 for abutting against the right side of the first sliding block 3 and a second side surface 42 for abutting against the groove wall of the right side of the groove, and the first side surface 41 and the second side surface 42 are at an angle to each other. The first side surface 41 is parallel to the right side surface of the first slider 3, and the second side surface 42 is parallel to the right groove wall of the groove.
In the present embodiment, the first side surface 41 is perpendicular to the sliding direction of the first slider 3 (i.e., the left-right direction in fig. 4), and the second side surface 42 is parallel to the driving direction of the driving mechanism 5. The right groove wall of the groove is gradually inclined to be close to the first sliding block 3 along the direction that the second sliding block 4 slides into the groove.
The driving mechanism 5 drives the second sliding block 4 to slide into the groove, so that the second sliding block 4 is tightly propped between the first sliding block 3 and the right groove wall of the groove, and the second sliding block 4 tightly props the first sliding block 3 on the left groove wall of the groove, thereby realizing the fixation of the first sliding block 3; the second sliding block 4 is gradually narrowed along the direction of entering the groove, namely the right side of the second sliding block 4 is abutted against the right side groove wall of the groove through the inclined surface, so that the fixing effect on the first sliding block 3 is further improved, namely the clamping effect between the first sliding block 3 and the fixed block 2 is improved; so that the vibration of the die 11 is small in the processing process, the processing quality is high, and the service life of the driving mechanism 5 is long.
The first sliding block 3 includes a first bottom 31 slidably disposed in the groove along a left-right direction (i.e., a left-right direction in fig. 3), and a first top 32 fixedly disposed at an upper end of the first bottom 31 and adapted to cooperate with the fixing block 2 to clamp the dies 11, the first top 32 is integrally located above the groove, and a height of the first bottom 31 is the same as a height of a groove wall of the groove. The fixing block 2 and the first top portion 32 are used for being matched with two opposite side faces of the screw die 11 to abut against the two opposite side faces of the screw die 11, and clamping of the screw die 11 is achieved. In the present embodiment, the first bottom portion 31 and the first top portion 32 are integrally formed.
When the first top portion 32 is used for cooperating with the fixing block 2 to clamp the die 11, the left side of the first bottom portion 31 abuts against the left side groove wall of the groove. The left side of the first bottom 31 is parallel to the left groove wall of the groove, and the right side of the first bottom 31 is parallel to the left side of the second sliding block 4. Referring to fig. 4, the left side of the first bottom 31 and the right side thereof are parallel to each other.
Referring to fig. 4, in this embodiment, a through hole 7 is formed in the base 1 and located below the fixed block 2 and used for penetrating through the left groove wall of the groove along the left-right direction, the left end of the elastic element 6 is fixed in the through hole 7, and the right end of the elastic element 6 can extend out of the left groove wall of the groove and abut against the left side of the first bottom 31. When the clamp clamps the threading die 11 for processing, the elastic piece 6 is integrally pressed into the through hole 7, and the left side of the first sliding block 3 is tightly propped against the left side groove wall of the groove; after the die 11 is machined, the second sliding block 4 is withdrawn and reset, and the first sliding block 3 slides rightwards under the action of the elastic force of the elastic piece 6 to open the die so as to take out the die 11.
Referring to fig. 4, in the present embodiment, the fixture further includes a guide shaft 8 protruding to the right on the left side wall of the groove, and the first bottom 31 is sleeved on the guide shaft 8.
In the present embodiment, the sliding directions of the elastic member 6, the guide shaft 8, and the first slider 3 are parallel to each other. The second slider 4 enters the groove from the space between the groove walls at the two sides of the groove.
The driving mechanism 5 includes a driving cylinder 51, and an expansion rod 52 that is disposed in the driving cylinder 51 and can expand and contract along the longitudinal extension direction thereof, and the expansion rod 52 is fixedly connected to the second slider 4.
The clamp further comprises a pressing block 10 which is fixedly arranged at the top of the base 1 and used for pressing the second sliding block 4. Referring to fig. 3, the fixing block 2 is disposed at the top of the left side of the groove, the pressing block 10 is disposed at the top of the right side of the groove, and the pressing block 10 is used for pressing the second sliding block 4 downward to limit the second sliding block 4 from the up-down direction.
In a first disc machine, when the threading die 11 is clamped, the threading die 11 is placed at the top of the base 1 and is tightly propped between the fixed block 2 and the positioning block 9, so that the threading die 11 is positioned. The driving cylinder 51 drives the second slider 4 to enter the groove, and in the entering process, the second slider 4 pushes the first slider 3 to move leftwards under the action of the inclined surface (the second side surface 42) until the first slider 3 abuts against the groove wall on the left side of the groove, the elastic piece 6 is completely pressed into the through hole 7, and at the moment, the first top portion 32 abuts against the screw die 11, so that the clamping of the screw die 11 is realized.
After the machining is completed, the driving cylinder 51 drives the second slide block 4 to return, and the first slide block 3 moves rightwards in the groove under the action of the elastic piece 6, at the moment, the first top part 32 is far away from the screw die 11, so that the screw die 11 can be taken out conveniently.
In the second disc machine, when the screw die 11 is clamped, the screw die 11 is placed at the top of the base 1, the screw die 11 is tightly propped against the fixed block 2, and meanwhile, the outwards-protruding limiting block 13 on one side of the fixed block 2 enters a groove formed in the screw die 11 by milling the first position of the first disc machine, so that the positioning of the screw die 11 is realized. The driving cylinder 51 drives the second slider 4 to enter the groove, and in the entering process, the second slider 4 pushes the first slider 3 to move leftwards under the action of the inclined surface (the second side surface 42) until the first slider 3 abuts against the groove wall on the left side of the groove, the elastic piece 6 is completely pressed into the through hole 7, and at the moment, the first top portion 32 abuts against the screw die 11, so that the clamping of the screw die 11 is realized.
After the machining is completed, the driving cylinder 51 drives the second slide block 4 to return, and the first slide block 3 moves rightwards in the groove under the action of the elastic piece 6, at the moment, the first top part 32 is far away from the screw die 11, so that the screw die 11 can be taken out conveniently.
The following specifically explains the working process of this embodiment:
the manipulator 12 sends the screw die 11 into a zero position of the first disc machine, and the screw die 11 is clamped through a clamp; when the first circular disc machine stops rotating intermittently each time, the five first machining seats 16 simultaneously machine the dies 11 on the corresponding stations;
after one round of processing is finished, the manipulator 12 sends the dies 11 on the first disc machine into the zero position of the second disc machine, turns the dies 11 towards the fixed block 2 for 90 degrees, and clamps the dies 11 through the clamp; when the second disc machine stops rotating intermittently each time, the five second machining seats 19 simultaneously machine the dies 11 on the corresponding stations;
when one round of processing is finished, the manipulator 12 takes down the dies 11 on the second disc machine.
The first and second disc machines enable continuous machining of dies 11, i.e. ten dies 11 can be machined simultaneously.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A threading die processingequipment which characterized in that: the automatic threading die machining device comprises a first disc machine with six stations, a second disc machine with six stations and a manipulator, wherein the manipulator is used for feeding a threading die machined in the first disc machine into the second disc machine for continuous machining;
the first disc machine and the second disc machine both comprise clamps for clamping the dies, each clamp comprises a base with a groove, a fixed block fixedly arranged on the base, a first sliding block arranged in the groove and capable of sliding in the direction close to or away from the fixed block, a second sliding block which can enter the groove in a sliding mode and is used for abutting against and pushing the first sliding block to slide close to the fixed block, a driving mechanism used for driving the second sliding block to slide, and an elastic piece arranged in the base and used for abutting against the first sliding block, wherein the elastic piece and the second sliding block are respectively arranged on two sides of the first sliding block in the sliding direction of the first sliding block;
when the first sliding block is used for being matched with the fixed block to clamp the screw die, the elastic piece is integrally retracted into the base, the second sliding block is tightly propped between the first sliding block and the groove wall on one side of the groove, and the second sliding block is gradually narrowed in the direction of entering the groove.
2. A die cutting apparatus as set forth in claim 1, wherein: the fixed block is arranged at the top of the base, the first sliding block comprises a first bottom which is slidably arranged in the groove and a first top which is fixedly arranged at the upper end of the first bottom and is used for being matched with the fixed block to clamp the threading die, and the first top is positioned above the groove;
when the first top is used for being matched with the fixing block to clamp the screw die, the first bottom is abutted to the wall of the groove on the other side of the groove.
3. A die cutting apparatus as set forth in claim 2, wherein: the base is provided with a through hole which is positioned below the fixed block and is used for penetrating through the groove wall on the other side of the groove, one end of the elastic piece is fixedly arranged in the through hole, and the other end of the elastic piece extends out of the groove wall on the other side of the groove and is abutted against the first bottom.
4. A die cutting apparatus as set forth in claim 2, wherein: the fixture further comprises a guide shaft which is convexly arranged on the groove wall on the other side of the groove, and the first bottom is sleeved on the guide shaft.
5. A die cutting apparatus as set forth in claim 2, wherein:
in the first disc machine, the clamp further comprises a positioning block which is fixedly arranged on the base and used for tightly abutting against one end of the threading die, and the positioning block is arranged between the fixing block and the first top;
in the second disc machine, the fixing block comprises a limiting block protruding towards the first top side face, and the limiting block is used for being clamped into the screw die.
6. A die cutting apparatus as set forth in claim 1, wherein: the second sliding block is provided with a first side surface used for tightly abutting against the first sliding block and a second side surface used for tightly abutting against the groove wall on one side of the groove, and the first side surface and the second side surface form an angle with each other.
7. A die machining apparatus as set forth in claim 6, wherein: the first side surface is perpendicular to the sliding direction of the first sliding block, the second side surface is parallel to the driving direction of the driving mechanism, and the groove wall on one side of the groove is gradually inclined to be close to the first sliding block along the direction that the second sliding block slides into the groove.
8. A die cutting apparatus as set forth in claim 1, wherein: the clamp further comprises a pressing block fixedly arranged at the top of the base and used for pressing the second sliding block.
9. A die cutting apparatus as set forth in claim 1, wherein: first disc machine includes first lathe, can locate around self axial lead direction pivoted on the first lathe and be used for the installation first disc, six locate along the evenly arranged of circumferencial direction interval on the first lathe and be located the first processing station in the first disc outside, five one-to-one locate first processing seat in the first processing station.
10. A die cutting apparatus as set forth in claim 1, wherein: the second disc machine comprises a second machine tool, and is arranged on the second machine tool in a rotating mode around the axis line of the second machine tool and used for installing the second disc of the clamp, six evenly arranged positions at intervals along the circumferential direction, on the second machine tool, the second machining position on the outer side of the second disc, and five one-to-one corresponding second machining seats arranged in the second machining position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751758.2U CN213764828U (en) | 2020-11-25 | 2020-11-25 | Threading die processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751758.2U CN213764828U (en) | 2020-11-25 | 2020-11-25 | Threading die processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213764828U true CN213764828U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022751758.2U Active CN213764828U (en) | 2020-11-25 | 2020-11-25 | Threading die processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213764828U (en) |
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2020
- 2020-11-25 CN CN202022751758.2U patent/CN213764828U/en active Active
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