CN113878039A - Convenient-to-detach punch for stamping die - Google Patents
Convenient-to-detach punch for stamping die Download PDFInfo
- Publication number
- CN113878039A CN113878039A CN202111245363.8A CN202111245363A CN113878039A CN 113878039 A CN113878039 A CN 113878039A CN 202111245363 A CN202111245363 A CN 202111245363A CN 113878039 A CN113878039 A CN 113878039A
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- China
- Prior art keywords
- wall
- mounting
- punch
- fixedly connected
- installation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
Abstract
The invention discloses a punch for a stamping die convenient to disassemble, which comprises a die box, wherein a connecting frame is arranged on the outer wall of the top of the die box, an installation opening is formed in the outer wall of the bottom of the die box, an installation seat is arranged on the inner wall of the installation opening, auxiliary mechanisms are arranged on the outer walls of two sides of the installation seat, an installation disc is arranged on the outer wall of the bottom of the installation seat, a punch body is arranged on the outer wall of the bottom of the installation disc, a supporting mechanism is arranged on the inner wall of the die box, installation mechanisms are fixedly connected to the outer walls of two sides of the installation seat and the inner walls of two sides of the die box, and a circular opening is formed in the outer wall of the top of the installation seat. The punch head body is convenient to rapidly assemble and disassemble through the matching among the installation seat, the installation mechanism, the supporting mechanism and the installation disc which are arranged in the die box, and meanwhile, the punch head body is convenient to be tensioned and installed through the auxiliary mechanism through the arrangement of the two auxiliary mechanisms, so that the punch head installation efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a punch for a stamping die, which is convenient to disassemble.
Background
The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly called a cold stamping die). Stamping is a press working method for obtaining a desired part by applying pressure to a material at room temperature using a die mounted on a press to cause separation or plastic deformation, and the types of stamping dies are many, and a stamping die is also classified according to three aspects of working properties, die structure, and die material: 1. classifying according to process properties: five major types, namely a blanking die, a bending die, a drawing die, a forming die, a d-forming die, an e-riveting die and the like, 2, are classified according to the process combination degree: a single-process die, b compound die, c progressive die, d transfer die and the like, 3, classifying according to the processing method of the product: the method comprises five main types of a punching and shearing die, a b bending die, a c drawing die, a d forming die, an e compression die and the like.
The metal parts on the stamping die in the punch mechanical tool, which are also called as a punch bar, a punch pin or a punch, are installed on the stamping die to perform continuous punching, stamping and breaking operation, so that the processed material is separated or plastically deformed, and the required finished product or semi-finished product is obtained. The drift needs often to change it as quick-wear part in stamping process, and punching press grinding apparatus head is direct fixed mounting on the punching press pole of punching press, when needing to process the work piece of different grade type, needs often to change the pattern of mould, and punching press grinding apparatus head is for guaranteeing the stability of using, and it is troublesome to lead to dismantling, and current drift installation is relatively more complicated, and because often suffer to strike unable normal dismantlement at the dismantlement in-process.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a punch for a stamping die, which is convenient to disassemble.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a convenient drift of dismantling for stamping die, includes the die box, die box top outer wall is provided with the link, the installing port has been seted up to die box bottom outer wall, and the inner wall of installing port is provided with the mount pad, the both sides outer wall of mount pad all is provided with complementary unit, mount pad bottom outer wall is provided with the mounting disc, and mounting disc bottom outer wall is provided with the drift body, the inner wall of die box is provided with supporting mechanism, the equal fixedly connected with installation mechanism of both sides outer wall of mount pad and the both sides inner wall of die box, circular mouth has been seted up to mount pad top outer wall, and the inner wall of circular mouth is provided with the spliced pole, spliced pole bottom outer wall fixed connection is on the mounting disc, the round mouth has all been seted up to the both sides of mounting disc top outer wall, the spacing groove has all been seted up to the outer wall of spliced pole.
Preferably, the installation mechanism comprises an installation box, the inner walls of the two sides of the installation box are fixedly connected with sliding rods, and the inner wall of one side of the installation box is fixedly connected with a hydraulic rod.
Preferably, the outer walls of the two sliding rods are sleeved with a first spring, the outer walls of the two sliding rods are connected with the same driving plate in a sliding mode, the outer wall of one side of the driving plate is fixedly connected with a limiting column, the specification of the limiting column is matched with that of the limiting groove, and a piston rod of the hydraulic rod is connected to the driving plate.
Preferably, the supporting mechanism comprises a top seat, an installation groove is formed in the outer wall of the bottom of the top seat, and a pressure sensor is fixedly connected to the inner wall of the top of the installation groove.
Preferably, the inner wall sliding connection of mounting groove has the sliding block, and is connected with spring two between sliding block and the pressure sensor.
Preferably, the auxiliary mechanism comprises an installation pipe, the inner wall of the installation pipe is connected with a driving column in a sliding mode, and the outer wall of the driving column is etched with threads.
Preferably, the outer wall of the driving column is connected with a nut in a threaded manner, the specification of the driving column is matched with that of the circular opening, fixing rods are fixedly connected to two sides of the inner wall of the top of the mounting pipe, springs are sleeved on the outer walls of the two fixing rods, the outer walls of the two fixing rods are connected with the same sliding plate in a sliding manner, and the sliding plate is fixedly connected to the driving column.
Preferably, the outer wall of the top of the drive plate is fixedly connected with a magnet, and the inner wall of the top of the installation pipe is fixedly connected with an electromagnet.
Preferably, the outer wall of the top of the sliding plate is fixedly connected with a connecting block, the inner wall of the top of the installation pipe is fixedly connected with a fixed seat, the outer wall of one side of the fixed seat is fixedly connected with a motor, a winch is connected to an output shaft of the motor in a sleeved mode, the outer wall of the winch is wound with a pull rope, and one end of the pull rope is connected to the connecting block.
The invention has the beneficial effects that:
1. the punch head body is convenient to rapidly assemble and disassemble through the matching among the installation seat, the installation mechanism, the supporting mechanism and the installation disc which are arranged in the die box, and meanwhile, the punch head body is convenient to be tensioned and installed through the auxiliary mechanism through the arrangement of the two auxiliary mechanisms, so that the punch head installation efficiency is further improved.
2. According to the invention, the limiting column driven by the electric telescopic rod and the limiting groove on the connecting column are arranged in the mounting mechanism and are matched with each other, so that the punch is fixed in the mounting seat on the die box, meanwhile, the pressure sensor in the supporting mechanism is matched, the limiting column is conveniently inserted into the limiting groove at a proper position, the pressure sensor senses the pressure change, the actual displacement of the connecting column is determined through the pressure change, and therefore, the position of the limiting groove on the connecting column is determined, the connecting column is conveniently and rapidly fixed, and the mounting efficiency is improved.
3. According to the invention, the matching between the driving column and the sliding plate is arranged in the auxiliary mechanism, so that the punch can be conveniently lifted by the auxiliary mechanism when being installed, the workload of workers is reduced, and meanwhile, through the matching between the electromagnet and the magnet, the punch can be conveniently disassembled by the electromagnet with the same magnetism as the magnet in the disassembling process.
Drawings
Fig. 1 is a schematic structural diagram of a punch for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 2 is a schematic cross-sectional view of a die box of a punch for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 3 is a schematic structural view of a mounting seat of a punch for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 4 is a schematic view of an unfolding structure of a punch mounting seat for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 5 is a schematic view of an unfolding structure of a mounting mechanism of a punch for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 6 is a schematic structural view of a punch supporting mechanism for a stamping die according to the present invention, which is easy to disassemble;
FIG. 7 is a schematic structural view of an auxiliary mechanism of a punch for a stamping die, which is provided by the invention and is convenient to disassemble;
FIG. 8 is a schematic cross-sectional view of a mounting tube of an embodiment of a punch for a stamping die according to the present invention, which is easy to disassemble;
fig. 9 is a schematic cross-sectional structural view of a second mounting tube of an embodiment of a punch for a stamping die, which is provided by the invention and is convenient to disassemble.
In the figure: 1. a mould box; 2. a connecting frame; 3. a mounting seat; 4. an auxiliary mechanism; 5. mounting a disc; 6. a punch body; 7. an installation mechanism; 8. a support mechanism; 9. installing a box; 10. a slide bar; 11. a first spring; 12. a drive plate; 13. a limiting column; 14. a hydraulic lever; 15. connecting columns; 16. a limiting groove; 17. a top seat; 18. a second spring; 19. a slider; 20. installing a pipe; 21. a drive column; 22. a nut; 23. a pressure sensor; 24. fixing the rod; 25. a third spring; 26. a magnet; 27. a sliding plate; 28. an electromagnet; 29. a fixed seat; 30. a winch; 31. a motor; 32. pulling a rope; 33. connecting blocks; 34. a round mouth; 35. and (4) threading.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-8, a punch for a stamping die convenient to disassemble comprises a die box 1, a connecting frame 2 is arranged on the outer wall of the top of the die box 1, a mounting opening is arranged on the outer wall of the bottom of the die box 1, and the inner wall of the mounting opening is provided with a mounting seat 3, the outer walls of the two sides of the mounting seat 3 are both provided with an auxiliary mechanism 4, the outer wall of the bottom of the mounting seat 3 is provided with a mounting disc 5, and the outer wall of the bottom of the mounting disc 5 is provided with a punch body 6, the inner wall of the die box 1 is provided with a supporting mechanism 8, the outer walls of the two sides of the mounting seat 3 and the inner walls of the two sides of the die box 1 are both fixedly connected with a mounting mechanism 7, the outer wall of the top of the mounting seat 3 is provided with a circular opening, and the inner wall of circular opening is provided with spliced pole 15, and spliced pole 15 bottom outer wall fixed connection is on mounting disc 5, and circular opening 34 has all been seted up to the both sides of mounting disc 5 top outer wall, and spacing groove 16 has all been seted up to spliced pole 15's outer wall.
In the invention, an installation mechanism 7 comprises an installation box 9, the inner walls of two sides of the installation box 9 are fixedly connected with sliding rods 10, the inner wall of one side of the installation box 9 is fixedly connected with a hydraulic rod 14, the outer walls of the two sliding rods 10 are sleeved with a first spring 11, the outer walls of the two sliding rods 10 are slidably connected with a same driving plate 12, the outer wall of one side of the driving plate 12 is fixedly connected with a limiting column 13, the specification of the limiting column 13 is matched with that of a limiting groove 16, a piston rod of the hydraulic rod 14 is connected on the driving plate 12, a supporting mechanism 8 comprises a top seat 17, the outer wall of the bottom of the top seat 17 is provided with an installation groove, the inner wall of the top of the installation groove is fixedly connected with a pressure sensor 23, the inner wall of the installation groove is slidably connected with a sliding block 19, a second spring 18 is connected between the sliding block 19 and the pressure sensor 23, an auxiliary mechanism 4 comprises an installation pipe 20, and the inner wall of the installation pipe 20 is slidably connected with a driving column 21, and the outer wall etching of drive post 21 has screw thread 35, the outer wall of drive post 21 has nut 22 through screw thread 35 spiro union, and the specification of drive post 21 and the specification phase-match of circular mouth, the equal fixedly connected with dead lever 24 in both sides of the inner wall in installation tube 20 top, and the outer wall of two dead levers 24 has cup jointed spring three 25, the outer wall sliding connection of two dead levers 24 has same sliding plate 27, sliding plate 27 fixed connection is on drive post 21, sliding plate 27 top outer wall fixedly connected with magnet 26, installation tube 20 top inner wall fixedly connected with electro-magnet 28.
The working principle is as follows: when the punch is installed, the driving plate 12 is driven by the hydraulic rod 14 to take the two limiting columns 13 into the installation box 9, the connecting column 15 is inserted into the installation seat 3, the two nuts 22 on the auxiliary mechanism 4 are disassembled, the installation disc 5 on the punch body 6 is fixed on the driving column 21 through the nuts 22, the electromagnet 28 is started, the magnetism opposite to the magnet 26 generated on the surface of the electromagnet 28 is utilized to further pull the sliding plate 37 to move upwards to compress the spring III 25, the connecting column 15 is driven to move upwards to compress the sliding block 19 when the driving column 21 moves upwards, so that pressure is formed on the pressure sensor 23, when the pressure value reaches a set range, the limiting groove 16 on the surface connecting column 15 reaches a specified position, the limiting column 13 is driven by the hydraulic rod 14 to slide out and be inserted into the limiting groove 16 for limiting, so as to complete the installation of the punch, when the punch is disassembled, the electromagnet 28 is electrified to generate a magnet opposite to the magnet 26, according to the principle that like poles repel each other, the auxiliary punch is detached, and two nuts 22 are needed to clamp the mounting disc 5 in the detaching process to achieve the effect of assisting detachment.
Example two
Referring to fig. 1-7 and 9, a punch for a stamping die convenient to disassemble comprises a die box 1, a connecting frame 2 is arranged on the outer wall of the top of the die box 1, a mounting hole is arranged on the outer wall of the bottom of the die box 1, and the inner wall of the mounting opening is provided with a mounting seat 3, the outer walls of the two sides of the mounting seat 3 are both provided with an auxiliary mechanism 4, the outer wall of the bottom of the mounting seat 3 is provided with a mounting disc 5, and the outer wall of the bottom of the mounting disc 5 is provided with a punch body 6, the inner wall of the die box 1 is provided with a supporting mechanism 8, the outer walls of the two sides of the mounting seat 3 and the inner walls of the two sides of the die box 1 are both fixedly connected with a mounting mechanism 7, the outer wall of the top of the mounting seat 3 is provided with a circular opening, and the inner wall of circular opening is provided with spliced pole 15, and spliced pole 15 bottom outer wall fixed connection is on mounting disc 5, and circular opening 34 has all been seted up to the both sides of mounting disc 5 top outer wall, and spacing groove 16 has all been seted up to spliced pole 15's outer wall.
In the invention, an installation mechanism 7 comprises an installation box 9, the inner walls of two sides of the installation box 9 are fixedly connected with sliding rods 10, the inner wall of one side of the installation box 9 is fixedly connected with a hydraulic rod 14, the outer walls of the two sliding rods 10 are sleeved with a first spring 11, the outer walls of the two sliding rods 10 are slidably connected with a same driving plate 12, the outer wall of one side of the driving plate 12 is fixedly connected with a limiting column 13, the specification of the limiting column 13 is matched with that of a limiting groove 16, a piston rod of the hydraulic rod 14 is connected on the driving plate 12, a supporting mechanism 8 comprises a top seat 17, the outer wall of the bottom of the top seat 17 is provided with an installation groove, the inner wall of the top of the installation groove is fixedly connected with a pressure sensor 23, the inner wall of the installation groove is slidably connected with a sliding block 19, a second spring 18 is connected between the sliding block 19 and the pressure sensor 23, an auxiliary mechanism 4 comprises an installation pipe 20, and the inner wall of the installation pipe 20 is slidably connected with a driving column 21, and the outer wall etching of drive column 21 has screw thread 35, the outer wall of drive column 21 has nut 22 through screw thread 35 spiro union, and the specification of drive column 21 and the specification phase-match of circular mouth, the equal fixedly connected with dead lever 24 in both sides of 20 top inner walls of installation pipe, and the outer wall of two dead levers 24 has cup jointed spring three 25, the outer wall sliding connection of two dead levers 24 has same sliding plate 27, sliding plate 27 top outer wall fixedly connected with connecting block 33, 20 top inner wall fixedly connected with fixing base 29 of installation pipe, one side outer wall fixedly connected with motor 31 of fixing base 29, and cup jointed capstan winch 30 on motor 31's the output shaft, capstan winch 30's outer wall has cup jointed stay cord 32, and the one end of stay cord 32 is connected on connecting block 33.
The working principle is as follows: during installation, the driving plate 12 is driven by the hydraulic rod 14 to take the two limiting columns 13 into the installation box 9, the connecting column 15 is inserted into the installation seat 3, the two nuts 22 on the auxiliary mechanism 4 are disassembled, the installation disc 5 on the punch body 6 is fixed on the driving column 21 through the nuts 22, the starting motor 31 drives the winch 30 to rotate the winding pull rope 32, the compression spring III 25 is moved upwards by the pulling sliding plate 37, the driving column 21 moves upwards to drive the connecting column 15 to move upwards to compress the sliding block 19, pressure is formed on the pressure sensor 23, when the pressure value reaches a set range, the limiting groove 16 on the surface connecting column 15 reaches a specified position, the hydraulic rod 14 drives the limiting columns 13 to slide out and insert into the limiting grooves 16 to limit, and installation of the punches is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The punch for the stamping die convenient to disassemble comprises a die box (1) and is characterized in that a connecting frame (2) is arranged on the outer wall of the top of the die box (1), a mounting hole is formed in the outer wall of the bottom of the die box (1), a mounting seat (3) is arranged on the inner wall of the mounting hole, auxiliary mechanisms (4) are arranged on the outer walls of the two sides of the mounting seat (3), a mounting disc (5) is arranged on the outer wall of the bottom of the mounting seat (3), a punch body (6) is arranged on the outer wall of the bottom of the mounting disc (5), a supporting mechanism (8) is arranged on the inner wall of the die box (1), mounting mechanisms (7) are fixedly connected on the outer walls of the two sides of the mounting seat (3) and the inner walls of the two sides of the die box (1), a round hole is formed in the outer wall of the top of the mounting seat (3), a connecting column (15) is arranged on the inner wall of the round hole, and the outer wall of the bottom of the connecting column (15) is fixedly connected on the mounting disc (5), round openings (34) are formed in two sides of the outer wall of the top of the mounting disc (5), and limiting grooves (16) are formed in the outer wall of the connecting column (15).
2. The punch for the stamping die convenient to disassemble as claimed in claim 1, wherein the mounting mechanism (7) comprises a mounting box (9), a sliding rod (10) is fixedly connected to the inner wall of each of two sides of the mounting box (9), and a hydraulic rod (14) is fixedly connected to the inner wall of one side of the mounting box (9).
3. The punch for the stamping die convenient to detach as claimed in claim 2, wherein the outer walls of the two sliding rods (10) are sleeved with a first spring (11), the outer walls of the two sliding rods (10) are slidably connected with a same driving plate (12), the outer wall of one side of the driving plate (12) is fixedly connected with a limiting column (13), the specification of the limiting column (13) is matched with that of a limiting groove (16), and a piston rod of the hydraulic rod (14) is connected to the driving plate (12).
4. The punch for the stamping die convenient to disassemble as claimed in claim 3, wherein the supporting mechanism (8) comprises a top seat (17), an installation groove is formed in the outer wall of the bottom of the top seat (17), and a pressure sensor (23) is fixedly connected to the inner wall of the top of the installation groove.
5. The punch for the stamping die convenient to disassemble as claimed in claim 4, wherein a sliding block (19) is connected to the inner wall of the mounting groove in a sliding manner, and a second spring (18) is connected between the sliding block (19) and the pressure sensor (23).
6. The punch for the stamping die convenient to disassemble as claimed in claim 5, wherein the auxiliary mechanism (4) comprises a mounting tube (20), the inner wall of the mounting tube (20) is connected with a driving column (21) in a sliding manner, and the outer wall of the driving column (21) is etched with threads (35).
7. The punch for the stamping die convenient to disassemble as claimed in claim 6, wherein the outer wall of the driving column (21) is connected with a nut (22) in a threaded manner through a thread (35), the specification of the driving column (21) is matched with that of the circular opening, fixing rods (24) are fixedly connected to two sides of the inner wall of the top of the mounting tube (20), springs (25) are sleeved on the outer walls of the two fixing rods (24), the outer walls of the two fixing rods (24) are connected with a same sliding plate (27) in a sliding manner, and the sliding plate (27) is fixedly connected to the driving column (21).
8. The punch for the stamping die convenient to disassemble as claimed in claim 7, wherein the sliding plate (27) is fixedly connected with a magnet (26) on the outer wall of the top part, and the mounting tube (20) is fixedly connected with an electromagnet (28) on the inner wall of the top part.
9. The punch for the stamping die convenient to detach as claimed in claim 7, wherein a connecting block (33) is fixedly connected to the outer wall of the top of the sliding plate (27), a fixed seat (29) is fixedly connected to the inner wall of the top of the mounting tube (20), a motor (31) is fixedly connected to the outer wall of one side of the fixed seat (29), a winch (30) is sleeved on an output shaft of the motor (31), a pulling rope (32) is wound on the outer wall of the winch (30), and one end of the pulling rope (32) is connected to the connecting block (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245363.8A CN113878039A (en) | 2021-10-26 | 2021-10-26 | Convenient-to-detach punch for stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245363.8A CN113878039A (en) | 2021-10-26 | 2021-10-26 | Convenient-to-detach punch for stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113878039A true CN113878039A (en) | 2022-01-04 |
Family
ID=79014246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111245363.8A Withdrawn CN113878039A (en) | 2021-10-26 | 2021-10-26 | Convenient-to-detach punch for stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113878039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378191A (en) * | 2022-01-20 | 2022-04-22 | 苏州列威精密机械有限公司 | Stamping die convenient to change stamping die drift |
| CN114701007A (en) * | 2022-06-06 | 2022-07-05 | 广东隆源实业有限公司 | Plastic product punching processing equipment |
| CN117655209A (en) * | 2024-01-31 | 2024-03-08 | 成都工业职业技术学院 | Metal plate cutting device and cutting early warning method thereof |
-
2021
- 2021-10-26 CN CN202111245363.8A patent/CN113878039A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378191A (en) * | 2022-01-20 | 2022-04-22 | 苏州列威精密机械有限公司 | Stamping die convenient to change stamping die drift |
| CN114378191B (en) * | 2022-01-20 | 2024-03-05 | 苏州列威精密机械有限公司 | Stamping die convenient to change stamping die drift |
| CN114701007A (en) * | 2022-06-06 | 2022-07-05 | 广东隆源实业有限公司 | Plastic product punching processing equipment |
| CN117655209A (en) * | 2024-01-31 | 2024-03-08 | 成都工业职业技术学院 | Metal plate cutting device and cutting early warning method thereof |
| CN117655209B (en) * | 2024-01-31 | 2024-04-16 | 成都工业职业技术学院 | Metal plate cutting device and cutting early warning method thereof |
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Application publication date: 20220104 |