A fixed-length cutting device for copper wire

Abstract

The application discloses a fixed-length cutting device for copper wire and relates to the technical field of copper wire processing. The device comprises a workbench and a U-shaped frame. The workbench is provided with a traction mechanism and a fixing mechanism. The workbench is provided with a vertical plate. The vertical plate is rotatably provided with a rotating shaft. The rotating shaft is provided with a positioning mechanism. The U-shaped frame is provided with a cutting mechanism. Straightening plates are arranged on four sides of a strip-shaped opening. A plurality of straightening holes with different diameters are formed in the straightening plates. The fixed-length cutting device is characterized in that the cutting knife is moved downward to drive the fixing mechanism to work, so that the copper wire after the unwinding is fixed, the rotation of the copper wire winding wheel caused by the cutting of the copper wire is avoided, the movement of the copper wire is avoided, the cutting of the copper wire is affected, the cutting of the copper wire is continuously caused, the efficiency of the copper wire cutting is reduced, the cutting of the copper wire is further facilitated, the copper wire head after the cutting is fixed, the copper wire winding is avoided, and the unwinding of the copper wire is facilitated.

Description

Technical Field

[0001] This invention relates to the field of copper wire processing technology, and in particular to a device for cutting copper wire to a fixed length. Background Technology

[0002] Copper wire is a metallic material commonly used as a conductor. It has excellent electrical conductivity and is often used in the manufacture of wires, cables, and brushes. It also has good thermal conductivity and is often used in the manufacture of magnetic instruments and meters that need to be protected from magnetic interference, such as compasses and aviation instruments. It has excellent plasticity and is easy to process by hot and cold pressure, and can be made into copper materials such as tubes, rods, wires, strips, strips, plates, and foils. However, when using copper wire, it is necessary to cut it to the appropriate length according to actual needs, which requires the use of a copper wire cutting device. However, existing copper wire length-cutting devices often suffer from problems. Since copper wires are transported in rolls at the factory, the bending of the wires during measurement can lead to excessively long cuts, resulting in wasted wire and reduced cutting accuracy. Furthermore, the cut wire rolls tend to become tangled and difficult to unwind, further reducing cutting efficiency. Therefore, a new copper wire length-cutting device is proposed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a fixed-length cutting device for copper wire in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fixed-length cutting device for copper wire includes a worktable and a U-shaped frame. The worktable is provided with a traction mechanism for pulling copper wire and a fixing mechanism for fixing copper wire. The worktable is provided with a vertical plate, and a rotating shaft is rotatably provided on the vertical plate. The rotating shaft is provided with a positioning mechanism for positioning a copper wire winding wheel. The U-shaped frame is provided with a cutting mechanism for cutting copper wire. The cutting mechanism includes a mounting plate slidably mounted on a U-shaped frame, an electric push rod mounted on the U-shaped frame, and a cutting blade slidably mounted on the mounting plate. The movable end of the electric push rod is fixedly connected to the top of the mounting plate. A rectangular rod is fixedly connected to the side of the cutting blade. A strip-shaped opening four is provided on the worktable to cooperate with the rectangular rod and the cutting blade. The bottom of the rectangular rod extends through to the bottom of the strip-shaped opening four. The strip-shaped opening has straightening plates on its four sides, and the straightening plates have multiple straightening holes of different diameters.

[0005] Preferably, the positioning mechanism includes an L-shaped abutment rod slidably mounted on a rotating shaft. A second strip-shaped opening is provided on the worktable to match the L-shaped abutment rod, and the L-shaped abutment rod extends movably through to the bottom of the second strip-shaped opening and slides on a rectangular rod. A support plate is fixedly connected to the worktable. A long screw is rotatably mounted on the L-shaped abutment rod. One end of the long screw movably passes through the support plate and is fixedly connected to a handle. The long screw and the support plate are connected by a thread. An external thread is provided on the outer wall of the outer end of the rotating shaft. A nut is provided on the outer wall of one end of the rotating shaft to match the external thread. A compression spring is provided at the inner end of the nut.

[0006] Preferably, the fixing mechanism includes a U-shaped plate at the bottom of the L-shaped abutment rod and a limiting frame at the top, a bidirectional lead screw rotatably mounted on the U-shaped plate, and a gear at one end of the bidirectional lead screw. Clamping plates are threaded onto the outer walls of both ends of the bidirectional lead screw, and the clamping plates are slidably mounted with the U-shaped plate. A strip-shaped opening three is provided on the worktable to cooperate with the clamping plates, and the top of the clamping plates movably passes through the strip-shaped opening three and the limiting frame. A driving component acting on the gear is provided on the rectangular rod.

[0007] Preferably, the driving component includes a rectangular groove formed on a rectangular rod, a connecting rod slidably disposed in the rectangular groove, and a compression spring II, wherein the compression spring II is located above the connecting rod, the connecting rod is provided with a strip-shaped toothed plate that meshes with a gear, and the worktable is provided with a strip-shaped opening V that cooperates with the strip-shaped toothed plate, and the top of the strip-shaped toothed plate movably extends through the strip-shaped opening V.

[0008] Preferably, a guide rod is provided on the side of the upright plate via a support block.

[0009] Preferably, the traction mechanism includes a strip-shaped opening on the workbench and a rectangular plate disposed within the workbench. A lead screw is rotatably mounted on the rectangular plate, and one end of the lead screw extends through the workbench and is equipped with a drive motor. A threaded sleeve is threadedly connected to the outer wall of the lead screw, and the top of the threaded sleeve extends through the strip-shaped opening and is equipped with a fixing member that acts on the copper wire.

[0010] Preferably, the fixing component includes a rectangular frame disposed on the threaded sleeve, a short lead screw rotatably disposed on the rectangular frame, and a movable pressure plate rotatably disposed at the bottom of the short lead screw. The bottom surface of the movable pressure plate and the bottom surface of the rectangular frame are provided with corresponding semi-fixed grooves.

[0011] Preferably, a laser measuring instrument body is mounted on the rectangular frame, and a cover plate that cooperates with the laser measuring instrument body is provided on the rectangular frame. A control device is provided on the front surface of the worktable in conjunction with the laser measuring instrument body.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: This invention uses the downward movement of the cutting blade to drive the fixing mechanism, thereby fixing the copper wire after it has been unwound. This prevents the copper wire from moving due to the rotation of the copper wire winding wheel during cutting, which would affect the cutting process, cause the copper wire to not break during cutting, and reduce the efficiency of copper wire cutting. This invention further facilitates the cutting of copper wire and also makes it easier to fix the cut copper wire ends, preventing the copper wire from becoming tangled and twisted, thus facilitating the unwound of the copper wire. The present invention uses a positioning mechanism to facilitate the positioning of the copper wire take-up wheel, making the copper wire and the straightening hole (the diameter of the straightening hole is the same as the diameter of the copper wire) coplanar, which further facilitates the copper wire passing through the straightening hole; at the same time, the movement of the L-shaped abutment rod in the positioning mechanism will drive the cutting blade to move synchronously, so that the cutting blade is always above the copper wire, which facilitates the cutting of the copper wire. This invention utilizes the combined use of a straightening plate and a straightening hole to facilitate the straightening of copper wires, preventing the copper wires from bending and affecting the length of the copper wire cut, thereby improving the accuracy of the copper wire cutting length. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure from a frontal view is shown according to an embodiment of the present invention; Figure 2 A side view structural schematic diagram is shown according to an embodiment of the present invention; Figure 3 A schematic diagram of the structure from a rear viewpoint provided according to an embodiment of the present invention is shown; Figure 4 A schematic cross-sectional view of the structure provided in an embodiment of the present invention is shown; Figure 5 A schematic diagram of the traction mechanism provided according to an embodiment of the present invention is shown; Figure 6 A first-view structural schematic diagram of the positioning mechanism provided according to an embodiment of the present invention is shown; Figure 7 A second-view structural schematic diagram of the positioning mechanism provided according to an embodiment of the present invention is shown; Figure 8 A third-view structural schematic diagram of the positioning mechanism provided according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the structure of the driving component provided according to an embodiment of the present invention is shown; Figure 10 A cross-sectional view of a work bar provided according to an embodiment of the present invention is shown; Figure 11 A schematic diagram of the connection between the cutting blade and the mounting plate according to an embodiment of the present invention is shown.

[0014] Legend: 1. Workbench; 2. Control equipment; 3. Drive motor; 4. Strip opening one; 5. Laser measuring instrument body; 6. Movable pressure plate; 7. Rectangular frame; 8. Short lead screw; 9. U-shaped frame; 10. Electric actuator; 11. Mounting plate; 12. Nut; 13. Rotating shaft; 14. Long lead screw; 15. Support plate; 16. Straightening plate; 17. Strip opening two; 18. L-shaped abutment rod; 19. Vertical plate; 20. Compression spring 1. Straightening hole; 22. Lead screw; 23. Semi-fixed groove; 24. Threaded sleeve; 25. Clamping plate; 26. U-shaped plate; 27. Two-way lead screw; 28. Guide rod; 29. ​​Gear; 30. Strip toothed plate; 31. Connecting rod; 32. Rectangular rod; 33. Limiting frame; 34. Compression spring; 35. Cutting knife; 36. Strip opening; 37. Strip opening; 38. Strip opening; 39. Cover plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figure 1-11 The present invention provides a technical solution: A copper wire length-cutting device includes a worktable 1 and a U-shaped frame 9. The worktable 1 is equipped with a traction mechanism for pulling the copper wire and a fixing mechanism for fixing the copper wire. The traction mechanism facilitates the movement of the copper wire, avoiding manual wire release, reducing the workload of workers, and improving the efficiency of copper wire release. The fixing mechanism facilitates the fixing of the copper wire after release, preventing the copper wire from moving due to the rotation of the copper wire winding wheel during cutting, which would affect the cutting process, cause the copper wire to not break during cutting, and reduce the efficiency of copper wire cutting. This further facilitates the cutting of copper wire and also makes it easier to clean the cut copper wire ends. The workbench 1 is fixed to prevent the copper wire from becoming tangled and thus facilitates the unwinding of the copper wire. A vertical plate 19 is provided on the workbench 1, and a rotating shaft 13 is mounted on the vertical plate 19. The rotating shaft 13 supports the copper wire winding wheel, facilitating the unwinding of the copper wire. A positioning mechanism is provided on the rotating shaft 13 to position the copper wire winding wheel, ensuring that the copper wire is coplanar with the straightening hole 21 (the diameter of the straightening hole 21 is the same as the diameter of the copper wire), further facilitating the passage of the copper wire through the straightening hole 21. A cutting mechanism is provided on the U-shaped frame 9 for cutting the copper wire. The cutting mechanism facilitates the cutting of the copper wire.

[0017] The cutting mechanism includes a mounting plate 11 slidably mounted on a U-shaped frame 9, an electric push rod 10 mounted on the U-shaped frame 9, and a cutting blade 35 slidably mounted on the mounting plate 11. The movable end of the electric push rod 10 is fixedly connected to the top of the mounting plate 11. The electric push rod 10 drives the cutting blade 35 to rise and fall, thereby achieving the cutting of copper wire. A rectangular rod 32 is fixedly connected to the side of the cutting blade 35. A strip-shaped opening 37 is opened on the worktable 1 to match the rectangular rod 32 and the cutting blade 35. The bottom of the rectangular rod 32 extends through to the bottom of the strip-shaped opening 37. The strip-shaped opening 37 has a straightening plate 16 on its side, and the straightening plate 16 has a plurality of straightening holes 21 of different diameters. The straightening plate 16 and the straightening holes 21 work together to straighten the copper wire, avoid the copper wire bending and affect the length of the copper wire cutting, thereby improving the accuracy of the copper wire cutting length.

[0018] In this invention, the positioning mechanism includes an L-shaped abutment rod 18 slidably mounted on a rotating shaft 13. A strip-shaped opening 17 is provided on the worktable 1 to accommodate the L-shaped abutment rod 18. The L-shaped abutment rod 18 extends movably through the bottom of the strip-shaped opening 17 and slides on a rectangular rod 32, facilitating the movement of the L-shaped abutment rod 18 and driving the cutting blade 35 to move. This ensures that the cutting blade 35 is always positioned above the copper wire, which is beneficial for cutting the copper wire. A support plate 15 is fixedly connected to the worktable 1. A long lead screw 14 is rotatably mounted on the L-shaped abutment rod 18. One end of the long lead screw 14 movably passes through the support plate 15 and is fixedly connected to a handle. The positioning mechanism utilizes the handle, the long lead screw 14, and the support plate 15 to achieve the desired cutting effect. The mutual cooperation of the support plates 15 facilitates the movement of the L-shaped abutment rod 18, thereby facilitating the movement of the copper wire winding wheel, achieving the positioning of the copper wire, and making it easier for the copper wire to pass through the corresponding straightening hole 21. The long screw 14 and the support plate 15 are connected by threads. The outer wall of the outer end of the rotating shaft 13 is provided with external threads, and a nut 12 is provided on the outer wall of one end of the rotating shaft 13 to fit the external threads. The inner end of the nut 12 is provided with a compression spring 20. The copper wire winding wheel is fixed by the mutual compression between the nut 12, the compression spring 20 and the L-shaped abutment rod 18. The operation is simple and convenient, improving the efficiency of installing or disassembling the copper wire winding wheel.

[0019] In this invention, the fixing mechanism includes a U-shaped plate 26 at the bottom of the L-shaped abutment rod 18 and a limiting frame 33 at the top, a bidirectional lead screw 27 rotatably mounted on the U-shaped plate 26, and a gear 29 at one end of the bidirectional lead screw 27. Clamping plates 25 are threadedly connected to the outer walls of both ends of the bidirectional lead screw 27, and the clamping plates 25 are slidably mounted with the U-shaped plate 26. A strip-shaped opening 36 that cooperates with the clamping plate 25 is provided on the worktable 1, and the top of the clamping plate 25 moves through the strip-shaped opening 36 and the limiting frame 33. The use of the limiting frame 33 helps to improve the stability of the sliding of the clamping plate 25, thereby improving the stability of the copper wire fixing. A driving member acting on the gear 29 is provided on the rectangular rod 32.

[0020] In this invention, the driving component includes a rectangular groove on a rectangular rod 32, a connecting rod 31 slidably disposed in the rectangular groove, and a compression spring 34, with the compression spring 34 located above the connecting rod 31. The connecting rod 31 is provided with a strip-shaped toothed plate 30 that meshes with the gear 29. The worktable 1 is provided with a strip-shaped opening 38 that cooperates with the strip-shaped toothed plate 30, and the top of the strip-shaped toothed plate 30 moves through the strip-shaped opening 38. The gear 29 is driven to rotate by the downward movement of the cutting blade 35 and the rectangular rod 32, thereby realizing the rotation of the bidirectional lead screw 27, which in turn realizes the relative movement of the clamping plate 25. Then, under the action of the compression spring 34, the copper wire is fixed before cutting, which is beneficial for cutting the copper wire and keeping the copper wire coil neat after cutting.

[0021] In this invention, a guide rod 28 is provided on the side of the upright plate 19 via a support block. The use of the guide rod 28 facilitates the wire guiding of the copper wire, thereby facilitating the copper wire to pass through the straightening hole 21 and further facilitating the straightening of the copper wire.

[0022] In this invention, the traction mechanism includes a strip-shaped opening 4 on the workbench 1 and a rectangular plate disposed within the workbench 1. A lead screw 22 is rotatably mounted on the rectangular plate, and one end of the lead screw 22 extends through the workbench 1 and is equipped with a drive motor 3. A threaded sleeve 24 is threadedly connected to the outer wall of the lead screw 22, and the top of the threaded sleeve 24 extends through the strip-shaped opening 4 and is equipped with a fixing member that acts on the copper wire. The drive motor 3 drives the lead screw 22 to rotate, thereby moving the threaded sleeve 24, which in turn moves the fixing member, further realizing the traction of the copper wire.

[0023] In this invention, the fastener includes a rectangular frame 7 mounted on the threaded sleeve 24, a short lead screw 8 rotatably mounted on the rectangular frame 7, and a movable pressure plate 6 rotatably mounted at the bottom of the short lead screw 8. The bottom surface of the movable pressure plate 6 and the bottom surface of the rectangular frame 7 are provided with corresponding semi-fixed grooves 23, and the inner diameter of the semi-fixed grooves 23 is different, which facilitates the clamping and fixing of copper wires of different sizes and improves the versatility of the fastener.

[0024] In this invention, a laser measuring instrument body 5 (existing technology) is mounted on a rectangular frame 7 to measure the length of copper wire and achieve fixed-length cutting of the copper wire. The end face of the laser emitter of the laser measuring instrument body 5 is parallel to the inner end face of the semi-fixed groove 23, while the shield 39 and the cutting blade 35 are coplanar, ensuring that the distance between the shield 39 and the laser measuring instrument body 5 is equal to the length of the copper wire, thus achieving accurate cutting of the copper wire. The rectangular frame 7 is provided with a shield 39 that cooperates with the laser measuring instrument body 5, and a control device 2 is provided on the front end face of the worktable 1 in conjunction with the laser measuring instrument body 5. The control device 2 includes a processor and a controller, with the processor connected to the laser measuring instrument body 5 via a wire, and the drive motor 3 and the electric push rod 10 both connected to the controller via wires. By setting the desired copper wire length on the laser measuring instrument body 5, when the distance between the laser measuring instrument body 5 and the shield 39 is the set value, the control device 2 receives a signal and controls the drive motor 3 to stop working and the electric push rod 10 to work.

[0025] Working principle: When using this invention, the copper wire winding wheel is first placed on the rotating shaft 13, then a compression spring 20 is sleeved on the outer end of the rotating shaft 13, and finally the nut 12 is screwed on the rotating shaft 13. The copper wire winding wheel is fixed by the clamping force between the compression spring 20 and the L-shaped abutment rod 18. Then, adjust the position of the copper wire take-up wheel according to the diameter of the copper wire so that the copper wire on the take-up wheel is coplanar with the straightening hole 21. Specifically, turn the handle to drive the long screw 14 to rotate, thereby driving the L-shaped abutment rod 18 to move. The movement of the L-shaped abutment rod 18 drives the copper wire take-up wheel to move. When the copper wire moves to the matching straightening hole 21, stop turning the handle. The movement of the L-shaped abutment rod 18 will cause the fixing mechanism and the rectangular rod 32 to move synchronously, and the movement of the rectangular rod 32 will cause the cutting blade 35 to move, so that the cutting blade 35 is always located above the copper wire; Next, the copper wire is passed through the two clamps 25, the bottom of the guide rod 28, and the straightening hole 21 that matches it, and placed in the semi-fixed groove 23 that matches it. Then, the short screw 8 is rotated, and the rotation of the short screw 8 drives the movable pressure plate 6 to move downward. Finally, the movable pressure plate 6 squeezes the copper wire to fix it. And set the length (value) of the copper wire to be cut on the laser measuring instrument body 5, which is a preset value; Then start the drive motor 3. The output shaft of the drive motor 3 rotates, which drives the lead screw 22 to rotate, which in turn drives the threaded sleeve 24 to move horizontally, thereby driving the rectangular frame 7 to move, and then pulling the copper wire to move. Among them, the copper wire passing through the straightening hole 21 will straighten the bent copper wire, which is convenient for the copper wire to bend and affect the accuracy of the copper wire measurement. When the length of the copper wire reaches the preset value, the laser measuring instrument body 5 receives the signal and transmits the signal to the processor in the control device 2. The processor processes the signal and controls the drive motor 3 to stop working and the electric push rod 10 to open. The extension of the telescopic end of the electric push rod 10 causes the mounting plate 11 to move downward, which in turn causes the cutting blade 35 and the rectangular rod 32 to move downward. Then, under the action of the compression spring 34, the connecting rod 31 moves downward, which in turn causes the strip toothed plate 30 to move downward, thereby causing the bidirectional lead screw 27 to rotate, realizing the relative movement of the clamping plate 25. Finally, the copper wire is fixed by the clamping force between the two clamping plates 25. As the telescopic end of the electric actuator 10 continues to move downward, the cutting blade 35 continues to move downward, eventually cutting the copper wire with the cutting blade 35, thus completing the fixed-length cutting of the copper wire.

[0026] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for cutting copper wire to a fixed length, comprising a worktable (1) and a U-shaped frame (9), characterized in that, The workbench (1) is provided with a traction mechanism for copper wire traction and a fixing mechanism for copper wire fixing. The workbench (1) is provided with a vertical plate (19). A rotating shaft (13) is rotatably provided on the vertical plate (19). A positioning mechanism for positioning the copper wire winding wheel is provided on the rotating shaft (13). A cutting mechanism for cutting copper wire is provided on the U-shaped frame (9). The cutting mechanism includes a mounting plate (11) slidably mounted on a U-shaped frame (9), an electric push rod (10) mounted on the U-shaped frame (9), and a cutting blade (35) slidably mounted on the mounting plate (11). The movable end of the electric push rod (10) is fixedly connected to the top of the mounting plate (11). A rectangular rod (32) is fixedly connected to the side of the cutting blade (35). A strip-shaped opening (37) is opened on the worktable (1) to match the rectangular rod (32) and the cutting blade (35). The bottom of the rectangular rod (32) extends through to the bottom of the strip-shaped opening (37). The strip-shaped opening four (37) has a straightening plate (16) on its side, and the straightening plate (16) has a plurality of straightening holes (21) of different diameters.

2. The device for cutting copper wire to a fixed length according to claim 1, characterized in that, The positioning mechanism includes an L-shaped abutment rod (18) slidably mounted on a rotating shaft (13). A strip-shaped opening (17) is provided on the worktable (1) to cooperate with the L-shaped abutment rod (18). The L-shaped abutment rod (18) extends movably through the bottom of the strip-shaped opening (17) and slides on a rectangular rod (32). A support plate (15) is fixedly connected to the worktable (1). A long screw (14) is rotatably mounted on the L-shaped abutment rod (18). One end of the long screw (14) extends movably through the support plate (15) and is fixedly connected to a handle. The long screw (14) and the support plate (15) are connected by a thread. An external thread is provided on the outer wall of the outer end of the rotating shaft (13). A nut (12) is provided on the outer wall of one end of the rotating shaft (13) to cooperate with the external thread. A compression spring (20) is provided at the inner end of the nut (12).

3. The device for cutting copper wire to a fixed length according to claim 2, characterized in that, The fixing mechanism includes a U-shaped plate (26) at the bottom of the L-shaped abutment rod (18) and a limiting frame (33) at the top, a bidirectional lead screw (27) rotatably mounted on the U-shaped plate (26) and a gear (29) at one end of the bidirectional lead screw (27). The outer walls of both ends of the bidirectional lead screw (27) are threaded with clamping plates (25), and the clamping plates (25) are slidably mounted with the U-shaped plate (26). The worktable (1) has a strip-shaped opening three (36) that cooperates with the clamping plates (25), and the top of the clamping plates (25) moves through the strip-shaped opening three (36) and the limiting frame (33). The rectangular rod (32) is provided with a driving component that acts on the gear (29).

4. The device for cutting copper wire to a fixed length according to claim 3, characterized in that, The driving component includes a rectangular groove on a rectangular rod (32), a connecting rod (31) slidably disposed in the rectangular groove, and a compression spring (34). The compression spring (34) is located above the connecting rod (31). The connecting rod (31) is provided with a strip toothed plate (30) that meshes with a gear (29). The worktable (1) is provided with a strip opening (38) that cooperates with the strip toothed plate (30), and the top of the strip toothed plate (30) moves through the strip opening (38).

5. A device for cutting copper wire to a fixed length according to claim 4, characterized in that, The upright plate (19) has a guide rod (28) on its side via a support block.

6. The device for cutting copper wire to a fixed length according to claim 1, characterized in that, The traction mechanism includes a strip opening (4) on the workbench (1) and a rectangular plate inside the workbench (1). A lead screw (22) is rotatably provided on the rectangular plate, and one end of the lead screw (22) extends through the workbench (1) and is provided with a drive motor (3). A threaded sleeve (24) is threadedly connected to the outer wall of the lead screw (22), and the top of the threaded sleeve (24) extends through the strip opening (4) and is provided with a fixing member that acts on the copper wire.

7. A device for cutting copper wire to a fixed length according to claim 6, characterized in that, The fastener includes a rectangular frame (7) set on the threaded sleeve (24), a short screw (8) rotatably set on the rectangular frame (7), and a movable pressure plate (6) rotatably set at the bottom of the short screw (8). The bottom surface of the movable pressure plate (6) and the bottom surface of the rectangular frame (7) are provided with corresponding semi-fixed grooves (23).

8. A device for cutting copper wire to a fixed length according to claim 7, characterized in that, The rectangular frame (7) is equipped with a laser measuring instrument body (5), and the rectangular frame (7) is provided with a cover plate (39) that cooperates with the laser measuring instrument body (5). The front surface of the workbench (1) is provided with a control device (2) that cooperates with the laser measuring instrument body (5).

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