Flat copper wire cutting mechanism

Abstract

The utility model relates to a flat copper wire cutting mechanism which comprises a base plate and a bottom plate arranged on the base plate in a sliding mode, a vertical plate is arranged on the bottom plate, a punching assembly sliding up and down is arranged on one side face of the vertical plate, the bottom of the punching assembly is arranged on the bottom plate, and a linkage assembly is arranged on the side face, away from the punching assembly, of the vertical plate. The bottom of the linkage assembly is connected to the base plate, the vertical plate is further provided with a gear motor, a disc cam and an eccentric wheel, the disc cam and the eccentric wheel are driven by the gear motor and rotate synchronously, the disc cam is provided with a special-shaped groove, and one end of the linkage assembly is arranged in the special-shaped groove and pushes the bottom plate to move back and forth along with rotation of the disc cam. When the eccentric wheel rotates, the punching assembly punches the flat copper wire. The utility model has the advantage that the end part of the flat copper wire section is prevented from being scratched and bent.

Description

Technical Field

[0001] This utility model belongs to the technical field of stator production equipment, specifically relating to a flat copper wire cutting mechanism. Background Technology

[0002] Hairpin permanent magnet synchronous motors are gradually being used on a large scale in the domestic drive motor market. Compared with traditional wound motors, due to the flat characteristics of hairpin copper wires, the motor is smaller and has higher power at the same power, making it the development direction of the next generation of new energy drive motors.

[0003] Currently, Chinese patent CN221158430U discloses a cutting mechanism for copper wire forming, including a support base with two opposing vertical plates; an upper cutting section and a lower cutting section are slidably disposed on opposite sides of the two vertical plates; an eccentric cam assembly is located above the upper cutting section and is rotatably disposed between the two vertical plates via a power mechanism; two connecting rods are respectively disposed on the eccentric cam assembly, and the other ends of the two connecting rods are movably connected to the upper cutting section and the lower cutting section, respectively. In use, the power mechanism drives the eccentric cam assembly. When the component rotates, the two connecting rods connected to the eccentric cam assembly drive the upper and lower cutting parts to slide on the two vertical plates, shearing in the same direction or separating in opposite directions to cut or loosen the copper wire. The overall structure is simple, with high cutting accuracy and efficiency. The power mechanism is a servo motor, which can easily cut the coated copper wire and reduce the impact on the upper and lower cutting parts. However, during the punching process, the upper cutting part scrapes the end of the cut copper wire segment during the retraction process after cutting, causing the copper wire segment to bend and affecting the subsequent forming and insertion process. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a flat copper wire cutting mechanism that avoids the ends of flat copper wire segments being scraped and bent.

[0005] The technical solution of this utility model is as follows:

[0006] A flat copper wire cutting mechanism includes a substrate and a base plate slidably disposed on the substrate. A vertical plate is disposed on the base plate. A punching component that slides up and down is disposed on one side of the vertical plate. The bottom of the punching component is disposed on the base plate. A linkage component is disposed on the side of the vertical plate away from the punching component. The bottom of the linkage component is connected to the substrate.

[0007] The upright plate is also equipped with a geared motor and a disc cam and an eccentric wheel that are driven by the geared motor and rotate synchronously. The disc cam has an irregular groove. One end of the linkage component is set in the irregular groove and pushes the base plate back to the original position as the disc cam rotates. When the eccentric wheel rotates, the punching component punches the flat copper wire.

[0008] Furthermore, the linkage assembly includes a follower fixing plate, a right-angle connecting rod hinged to the follower fixing plate, and a connecting rod fixing block fixed on the base plate. The follower fixing plate is slidably connected to the upright plate. The follower fixing plate is provided with a cam follower located in the irregular groove. The connecting rod fixing block is hinged to the other end of the right-angle connecting rod.

[0009] Furthermore, the follower fixing plate is fixed with a sliding plate II that is slidably connected to the upright plate, and both the sliding plate II and the follower fixing plate are provided with slots for flat copper wires to pass through.

[0010] Furthermore, a guide plate is provided on the substrate, and the guide plate has a wire groove. The flat copper wire passes through the wire groove and two slots and is inserted into the punching assembly.

[0011] Furthermore, a motor mounting block is provided on the side of the upright plate away from the punching assembly. The geared motor is fixed on the motor mounting block. The rotating shaft of the geared motor is coaxially fixed with a rotating shaft. The rotating shaft is rotatably connected to the upright plate and the motor mounting block. The disc cam and the eccentric wheel are both connected to the rotating shaft, and the disc cam is located inside the motor mounting block.

[0012] Furthermore, the punching assembly includes a slide plate I slidably connected to the upright plate, a punching connecting block fixed to the slide plate I, a punching blade fixed to the punching connecting block, and a cutting blade base fixed to the base plate. The punching connecting block has a through groove, and the eccentric wheel is disposed in the through groove.

[0013] Furthermore, the punching cutter is mounted on the lower end of the punching connecting block via a cutter holder connecting block, and a guide cover plate is fixed to the top of the cutter base.

[0014] Furthermore, an inner cam is provided at the center of the disc cam shaft, located within a shaped groove. A protrusion is provided on one side of the inner cam. The shaped groove includes a circular groove and an arc-shaped recess formed on the disc cam and corresponding to the position of the protrusion.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a geared motor to drive the disc cam and eccentric wheel. When the disc cam rotates, the linkage component gradually drives the base plate to move along with the irregular groove. When the disc cam rotates, the eccentric wheel rotates synchronously. Thus, when the punching is completed and reset, the base plate moves, so that the punching component does not come into contact with the flat copper wire, avoiding the end of the flat copper wire segment being scraped and bent.

[0017] In summary, this invention has the advantage of preventing the ends of flat copper wire segments from being scratched and bent. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the axonal structure;

[0020] Figure 3 This utility model Figure 1 A schematic diagram of the linkage components and the geared motor.

[0021] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the linkage component cooperating with the disc cam;

[0022] Figure 5 This utility model Figure 1 A schematic diagram of the punching blade section;

[0023] Figure 6 This utility model Figure 1 A schematic diagram of the structure of a disc cam;

[0024] Figure 7 This utility model Figure 6 A schematic diagram of the structure of the disc-shaped cam protrusion and the arc-shaped groove;

[0025] Figure 8 This utility model Figure 1 A schematic diagram showing the output displacement distance at the corresponding angle when the disc cam rotates.

[0026] In the diagram, 1. Base plate; 2. Base plate; 3. Punching assembly; 31. Punching connecting block; 32. Slide plate I; 33. Blade holder connecting block; 34. Punching blade; 35. Guide cover plate; 36. Cutting blade base; 4. Gear motor; 41. Eccentric wheel; 42. Motor mounting block; 43. Rotating shaft; 44. Disc cam; 441. Origin point; 442. Inner cam; 443. Irregular groove; 444. Cam point; 445. Arc-shaped groove; 446. Protrusion; 5. Vertical plate; 6. Guide plate; 7. Linkage assembly; 71. Follower fixing plate; 72. Right-angle connecting rod; 73. Connecting rod fixing block; 74. Slide plate II; 75. Cam follower. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 8 As shown, a flat copper wire cutting mechanism includes a substrate 2 and a base plate 1 slidably disposed on the substrate 2 via a slide rail. A vertical plate 5 is fixed on the base plate 1. A punching component 3 that slides up and down is disposed on one side of the vertical plate 5. The bottom of the punching component 3 is disposed on the base plate 1. A linkage component 7 is disposed on the side of the vertical plate 5 away from the punching component 3. The bottom of the linkage component 7 is connected to the substrate 2.

[0029] The upright plate 5 is also equipped with a reduction motor 4, a disc cam 44 driven by the reduction motor 4 and a eccentric wheel 41 that rotate synchronously. The disc cam 44 has a groove 443. One end of the linkage component 7 is set in the groove 443 and pushes the base plate 1 to move back to the original position as the disc cam 44 rotates. When the eccentric wheel 41 rotates, the punching component 3 punches the flat copper wire.

[0030] In use, the geared motor 4 works and drives the disc cam 44 and the eccentric wheel 41 to rotate. The rotation of the eccentric wheel 41 drives the punching assembly 3 to move down and punch the flat copper wire. After the punching is completed, as the disc cam 44 rotates, the linkage assembly 7 drives the base plate 1 to move, so that the punching blade 34 on the punching assembly 3 does not contact the flat copper wire. When the punching blade 34 moves up to the point where it can no longer contact the flat copper wire, the base plate 1 gradually returns to its original position as the disc cam 44 rotates. Then, the second punching can be performed according to the above process.

[0031] In this embodiment, the linkage component 7 includes a follower fixing plate 71, a right-angle connecting rod 72 hinged to the follower fixing plate 71, and a connecting rod fixing block 73 fixed on the base plate 2. The follower fixing plate 71 is slidably connected to the upright plate 5. The follower fixing plate 71 is provided with a cam follower 75 located in the irregular groove 443. The connecting rod fixing block 73 is hinged to the other end of the right-angle connecting rod 72.

[0032] In use, the cam follower 75 moves along the irregular groove 443 and drives the follower fixing plate 71 to move up and down. When the follower fixing plate 71 moves downward, the right-angle connecting rod 72 deflects. Since the connecting rod fixing block 73 is fixed to the base plate 2, when the right-angle connecting rod 72 deflects, it can drive the entire base plate 1 to move closer to the connecting rod fixing block 73, so that the entire mechanism can retract. When the follower fixing plate 71 returns to its original position and moves upward, the right-angle connecting rod 72 deflects, pushing the entire base plate 1 to move away from the connecting rod fixing block 73, so as to reset the entire mechanism.

[0033] In this embodiment, the follower fixing plate 71 is fixed with a sliding plate II 74 that is slidably connected to the upright plate 5. Both the sliding plate II 74 and the follower fixing plate 71 are provided with slots for flat copper wires to pass through. A guide plate 6 is provided on the base plate 2. The guide plate 6 is provided with a wire groove. The flat copper wire passes through the wire groove and the two slots and is inserted into the punching assembly 3.

[0034] In use, the flat copper wire is guided by the slot and wire groove, which prepares it for subsequent punching work;

[0035] The guide plate 6 is set on the same side as the geared motor 4.

[0036] In this embodiment, a motor mounting block 42 is fixed on the side of the upright plate 5 away from the punching assembly 3. The reduction motor 4 is fixed on the side wall of the motor mounting block 42. The rotating shaft of the reduction motor 4 is coaxially fixed with a rotating shaft 43. The rotating shaft 43 is rotatably connected to the upright plate 5 and the motor mounting block 42 through a bearing. The disc cam 44 and the eccentric wheel 41 are both fixedly sleeved on the rotating shaft 43, and the disc cam 44 is located inside the motor mounting block 42. The motor mounting block 42 has a notch for the follower fixing plate 71 and the cam follower 75 to pass through.

[0037] In use, the geared motor 4 drives the rotating shaft 43 to rotate, and the rotating shaft 43 drives the eccentric wheel 41 and the disc cam 44 to rotate synchronously. When the disc cam 44 rotates, the cam follower 75 and the follower fixing plate 71 move up and down from the notch, thereby ensuring the displacement.

[0038] In this embodiment, the punching assembly 3 includes a slide plate I32 slidably connected to the upright plate 5 via a slide rail, a punching connecting block 31 fixed to the slide plate I32, and a cutter base 36 detachably connected to the base plate 1 via bolts. The punching cutter 34 is installed at the lower end of the punching connecting block 31 via a cutter holder connecting block 33. The top of the cutter base 36 is detachably connected to the guide cover plate 35 via bolts. The punching connecting block 31 has a through groove, and the eccentric wheel 41 is disposed in the through groove.

[0039] There is a gap between the guide cover plate 35 and the cutter base 36 to allow flat copper wires to pass through. The cutter base 36 has a groove that cooperates with the punching cutter 34, and the guide cover plate 35 has a punching slot through which the punching cutter 34 passes.

[0040] During use, as the eccentric wheel 41 rotates, the punching connecting block 31 moves up and down under the action of the through slot, and drives the punching blade 34 to move down through the tool holder connecting block 33. The punching blade 34 moves down along the punching slot and the tool groove to punch the flat copper wire, thereby achieving the cutting of the flat copper wire. After the punching is completed, the punching blade 34 moves up and resets with the punching connecting block 31, and then repeats the above process for secondary punching.

[0041] In this embodiment, an inner cam 442 is provided at the axis of the disc cam 44, located within a shaped groove 443. A protrusion 446 is provided on one side of the inner cam 442. The shaped groove 443 includes a circular groove and an arc-shaped recess formed on the disc cam 44, corresponding to the position of the protrusion 446. Figure 6 As shown, the protrusion 446 is arc-shaped and the two ends of the arc-shaped protrusion 446 are respectively. When the cam point 444 rotates counterclockwise from the lowest position of the inner cam 442 to the highest point, the cam follower 75 contacts the protrusion 446 and the arc-shaped groove 445 to drive the cam follower 75 to move up and down.

[0042] In the initial stage, the inner cam 442 is initially positioned at the origin point 441, and the punching cutter 34 is at its highest position.

[0043] During the punching process, the rotating shaft 43 drives the disc cam 44 to rotate in the opposite direction at this position. At the same time, the eccentric wheel 41 pushes the punching connecting block 31 to move downward. When the disc cam 44 rotates in the opposite direction, it reaches the highest position from the original point 441. Figure 6 When the blade reaches its lowest position, the cutting blade 34 moves down to the lowest position to complete the cutting operation;

[0044] Subsequently, the rotating shaft 43 drives the disc cam 44 and the eccentric wheel 41 to continue rotating. The disc cam 44 continues to rotate in the opposite direction. When the cam point 444 rotates from the lowest position to the highest position, the original point 441 rotates counterclockwise from the highest position of the inner cam 442 to the lowest position. During the process of the original point 441 rotating from the highest position to the lowest position, the follower fixed plate moves downward first. During the downward movement, the right-angle connecting rod 72 deflects, driving the overall mechanism on the base plate 1 to retract backward. After retraction, it immediately returns to the original position.

[0045] like Figure 8 As shown, Figure 8 The output displacement unit is mm, and the cam angle unit is degrees (°).

[0046] from Figure 8 As can be seen, when the disc cam 44 rotates from 0 to 180°, the position of the base plate 1 remains unchanged; when the disc cam 44 rotates from 180 to 205°, the base plate 1 moves back 1mm; and then when the disc cam 44 rotates from 205 to 350°, the base plate 1 returns to its original position.

[0047] The purpose of the overall retraction of the mechanism is to prevent the cutting blade 34 from scraping the end of the cut copper wire segment during its upward movement after the flat copper wire is cut. After the cutting mechanism completes the cutting, it retracts as a whole, and the mechanical gripper removes the cut copper wire. This process avoids the problem of scraping the end of the flat copper wire segment, ensuring the quality of the flat copper wire segment. The uncut flat copper wire, due to its sufficient length, will not be affected by the retraction of a certain distance.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flat copper wire cutting mechanism characterized by: The system includes a substrate and a base plate slidably disposed on the substrate. A vertical plate is disposed on the base plate. A punching component that slides up and down is disposed on one side of the vertical plate. The bottom of the punching component is disposed on the base plate. A linkage component is disposed on the side of the vertical plate away from the punching component. The bottom of the linkage component is connected to the substrate. The upright plate is also equipped with a geared motor and a disc cam and an eccentric wheel that are driven by the geared motor and rotate synchronously. The disc cam has an irregular groove. One end of the linkage component is set in the irregular groove and pushes the base plate back to the original position as the disc cam rotates. When the eccentric wheel rotates, the punching component punches the flat copper wire.

2. The flat copper wire cutting mechanism according to claim 1, characterized by: The linkage assembly includes a follower fixing plate, a right-angle connecting rod hinged to the follower fixing plate, and a connecting rod fixing block fixed on the base plate. The follower fixing plate is slidably connected to the upright plate. The follower fixing plate is provided with a cam follower located in the irregular groove. The connecting rod fixing block is hinged to the other end of the right-angle connecting rod.

3. The flat copper wire cutting mechanism according to claim 2, characterized by: The follower fixing plate is fixed with a sliding plate II that is slidably connected to the upright plate. Both the sliding plate II and the follower fixing plate are provided with slots for flat copper wires to pass through.

4. The flat copper wire cutting mechanism according to claim 3, characterized by: A guide plate is provided on the substrate, and the guide plate has a wire groove. The flat copper wire passes through the wire groove and two slots and is inserted into the punching assembly.

5. The flat copper wire cutting mechanism according to claim 1, characterized by: A motor mounting block is provided on the side of the upright plate away from the punching assembly. The geared motor is fixed on the motor mounting block. The rotating shaft of the geared motor is coaxially fixed with a rotating shaft. The rotating shaft is rotatably connected to the upright plate and the motor mounting block. The disc cam and the eccentric wheel are both connected to the rotating shaft, and the disc cam is located inside the motor mounting block.

6. The flat copper wire cutting mechanism according to claim 1, characterized by: The punching assembly includes a slide plate I slidably connected to the upright plate, a punching connecting block fixed to the slide plate I, a punching blade fixed to the punching connecting block, and a cutting blade base fixed to the base plate. The punching connecting block has a through groove, and the eccentric wheel is disposed in the through groove.

7. The flat copper wire cutting mechanism according to claim 6, characterized in that: The punching cutter is mounted on the lower end of the punching connecting block via a cutter holder connecting block, and a guide cover is fixed to the top of the cutter base.

8. The flat copper wire cutting mechanism according to claim 6, wherein: The disc cam shaft center is provided with an inner cam located in a groove. A protrusion is provided on one side of the inner cam. The groove includes a circular groove and an arc-shaped recess opened on the disc cam and corresponding to the position of the protrusion.

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