Offset bending mechanism for flat wire
The double-sided bending of the flat line is achieved through the dislocation bending mechanism, which solves the problems of high production costs and inflexible operation in the prior art, and improves the production efficiency of the flat line motor.
Patent Information
- Application Number
- CN202211049490.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2042-08-30
AI Technical Summary
During the production process of existing flat wire motors, the single-side bending mechanism design leads to high production costs and inflexibility, making it difficult to meet the double-side bending needs.
A dislocation bending mechanism is designed to achieve dislocation bending of the two extension arms of the flat line through the cooperation of the extrusion fixture, the extrusion drive device and the lifting drive device, and support the left and right bending operations.
It reduces production costs, improves processing efficiency, reduces labor volume, and meets the diversified bending needs of flat lines.
Smart Images
Figure CN115401131B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technology of the field of motor production for new energy vehicles, and in particular to a staggered bending mechanism for flat wires. Background Art
[0002] The rapid development of new energy vehicle technology has placed higher demands on the motors used in these vehicles. Flat wire motors, with their advantages of high slot fill rate, high power, and high torque, as well as excellent heat dissipation, have led to their widespread use. During the assembly process, the two extension arms of the flat wire must be inserted into two corresponding layers of the wire slots, necessitating the pre-installed U-shaped flat wire bends. However, existing bending mechanisms for flat wire are typically custom-designed for single-sided bending. Bending the other side requires a separate bending mechanism, resulting in high production costs and inflexible operation, which can cause significant inconvenience during flat wire processing. Therefore, a double-sided offset bending mechanism should be designed specifically for flat wire processing to reduce costs and improve efficiency. Summary of the Invention
[0003] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a staggered bending mechanism for flat wires, which forms a staggered bending mechanism for the two extension arms of the flat wire by cooperating an extrusion jig, an extrusion drive device and a lifting drive device. The staggered bending mechanism can bend the flat wire to the left and right to meet different flat wire bending requirements. The overall structure is simple and the operation is flexible and convenient, which reduces a lot of manual labor for the processing of the flat wire, saves production costs and improves production efficiency.
[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions:
[0005] A staggered bending mechanism for a flat wire, the flat wire comprising two extending arms connected in an integral U-shape, the bending mechanism comprising a bracket, one extending arm extruding the flat wire to one side so that the extending arm and the other extending arm are staggered with each other, an extrusion jig with two extending arms in two different planes, an extrusion drive device for driving the extrusion jig to move, and a lifting drive device for driving the extrusion jig to rise and fall, the lifting drive device being mounted on the bracket; the extrusion drive device being mounted on the output end of the lifting drive device, the extrusion jig being mounted on the output end of the extrusion drive device, the extrusion jig comprising a left jig and a right jig, two bosses and two recesses being diagonally distributed on the end face of the left jig facing the right jig, two recesses and two bosses being diagonally distributed on the end face of the right jig facing the left jig, after the extrusion drive device drives the left jig and the right jig to close, the boss on the left jig is adapted to the recess on the right jig, and the recess on the left jig is adapted to the boss on the right jig.
[0006] As a preferred solution: the left jig includes a first jig and a second jig, and the first jig and the second jig are arranged side by side with each other; the right jig includes a third jig and a fourth jig, and the third jig and the fourth jig are arranged side by side with each other, the third jig is opposite to the first jig, and the fourth jig is opposite to the second jig.
[0007] As a preferred solution: a concave is formed at the upper end of the first jig and a convex is formed at the lower end; a convex is formed at the upper end of the second jig and a concave is formed at the lower end; a convex is formed at the upper end of the third jig and a concave is formed at the lower end; a concave is formed at the upper end of the fourth jig and a convex is formed at the lower end; the concave of the first jig is adapted to the convex of the third jig, the convex of the first jig is adapted to the concave of the third jig, the convex of the second jig is adapted to the concave of the fourth jig, and the concave of the second jig is adapted to the convex of the fourth jig.
[0008] As a preferred solution: a connecting seat is detachably mounted on the second jig, and the first jig is detachably mounted on the connecting seat; a connecting seat is also detachably mounted on the fourth jig, and the third jig is detachably mounted on the connecting seat.
[0009] As a preferred solution: the first jig can be installed on the connecting seat in a transverse sliding manner relative to the second jig; the third jig can be installed on the connecting seat on the fourth jig in a transverse sliding manner relative to the fourth jig.
[0010] As a preferred solution: a plurality of strip holes are horizontally distributed on the connecting seats of the second jig and the fourth jig, and a plurality of connecting holes are respectively provided on the first jig and the third jig corresponding to the plurality of strip holes, and the bolts pass through the strip holes and are threadedly connected to the corresponding connecting holes.
[0011] As a preferred solution: the connecting seat includes a longitudinal connecting plate and a transverse connecting plate, the longitudinal connecting plate and the transverse connecting plate are connected to each other in an L shape, the longitudinal connecting plate is detachably connected to the rear end of the second fixture or the rear end of the fourth fixture, and the transverse connecting plate is detachably connected to the side wall of the first fixture or the side wall of the second fixture.
[0012] As a preferred solution: the mechanism further includes a wire clamping and feeding device, which is an annular conveying device having a wire clamping block for clamping one of the extension arms of the flat wire.
[0013] As a preferred solution: the lifting drive device includes a motor, a screw and a slide, the motor is installed on the bracket, the screw is vertically connected to the motor shaft end, the slide can be vertically slidably installed on the bracket, and is rotatably matched with the screw, the motor drives the screw to rotate, and the slide rises and falls along the screw; the extrusion drive device is a cylinder, and the left jig and the right jig are installed on the output end of the cylinder.
[0014] As a preferred solution: a support frame is provided on the slide extending transversely, and the cylinder is mounted on the support frame.
[0015] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the technical solution that an offset bending mechanism for the two extension arms of the flat wire is formed by cooperating the extrusion jig, the extrusion drive device and the lifting drive device. The offset bending mechanism has multiple jigs and multiple bosses and recesses. Under the condition of automatic height adjustment, the flat wire can be bent to the left and right to meet different flat wire bending requirements, which provides convenience for the subsequent insertion of the stator of the flat wire; the overall structure of the mechanism is simple and the operation is flexible and convenient, which reduces a lot of manual labor for the processing of the flat wire, saves production costs and improves production efficiency.
[0016] To more clearly illustrate the structural features and effects of the present invention, it is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a first-perspective perspective diagram of the mechanism of the present invention;
[0018] Figure 2 This is a perspective diagram of the mechanism of the present invention from a second perspective;
[0019] Figure 3 This is a schematic diagram of the mechanism of the present invention from a third perspective;
[0020] Figure 4 This is a schematic diagram of the present invention from a fourth perspective;
[0021] Figure 5 for Figure 4 Schematic diagram of the misaligned bending of the left extension arm of the flat wire at AA;
[0022] Figure 6 for Figure 4 Schematic diagram of the misaligned bending of the right extension arm of the flat wire at BB;
[0023] Figure 7 This is a schematic perspective diagram of the mechanism of the present invention from a fifth perspective;
[0024] Figure 8 for Figure 7 The enlarged schematic diagram of M;
[0025] Figure 9 The invention provides a three-dimensional structure for the ring conveying device to clamp and feed the wire and to coordinate with the offset bending mechanism.
[0026] Schematic diagram.
[0027] Description of the accompanying drawings:
[0028] 10. Flat wire; 11. Extension arm; 20. Bending mechanism; 21. Bracket; 22. Extrusion jig; 221. Left jig; 222. Right jig; 223. Boss; 224. Recess; 225. First jig; 226. Second jig; 227. Third jig; 228. Fourth jig; 229. Connecting seat; 2291. Strip hole; 2292. Longitudinal connecting plate; 2293. Horizontal connecting plate; 230. Connecting hole; 23. Extrusion drive device; 24. Lifting drive device; 241. Motor; 242. Screw rod; 243. Slide; 244. Support frame; 30. Wire clamping and feeding device; 31. Wire clamping block. DETAILED DESCRIPTION
[0029] The present invention Figures 1 to 9 As shown, a staggered bending mechanism for a flat wire, wherein the flat wire 10 includes two extension arms 11 connected in a U-shape, the bending mechanism 20 includes a bracket 21, an extrusion jig 22 for extruding one of the extension arms 11 of the flat wire 10 to one side so that the extension arm 11 and the other extension arm 11 are staggered with each other, and the two extension arms 11 are located in two different planes, an extrusion drive device 23 for driving the extrusion jig 22 to move, and a lifting drive device 24 for driving the extrusion jig 22 to move up and down, wherein:
[0030] The lifting drive device 24 is installed on the bracket 21; the extrusion drive device 23 is installed on the output end of the lifting drive device 24, and the extrusion jig 22 is installed on the output end of the extrusion drive device 23. The extrusion jig 22 includes a left jig 221 and a right jig 222. Two bosses 223 and two recesses 224 are diagonally distributed on the end surface of the left jig 221 facing the right jig 222, and two recesses 224 and two bosses 223 are diagonally distributed on the end surface of the right jig 222 facing the left jig 221. After the extrusion drive device 23 drives the left jig 221 and the right jig 222 to close, the boss 223 on the left jig 221 is adapted to the recess 224 on the right jig 222, and the recess 224 on the left jig 221 is adapted to the boss 223 on the right jig 222.
[0031] Specifically, the left jig 221 includes a first jig 225 and a second jig 226, which are arranged side by side with each other; the right jig 222 includes a third jig 227 and a fourth jig 228, which are arranged side by side with each other, the three jigs are opposite to the first jig 225, and the fourth jig 228 is opposite to the second jig 226. A recess 224 is formed at the upper end of the first jig 225, and a boss 223 is formed at the lower end; a boss 223 is formed at the upper end of the second jig 226, and a recess 224 is formed at the lower end; a boss 223 is formed at the upper end of the third jig 227, and a recess 224 is formed at the lower end; a recess 224 is formed at the upper end of the fourth jig 228, and a boss 223 is formed at the lower end; the recess 224 of the first jig 225 is matched with the boss 223 of the third jig 227, the boss 223 of the first jig 225 is matched with the recess 224 of the third jig 227, the boss 223 of the second jig 226 is matched with the recess 224 of the fourth jig 228, and the recess 224 of the second jig 226 is matched with the boss 223 of the fourth jig 228. The second jig 226 has a removably mounted connection base 229, and the first jig 225 is removably mounted on the connection base 229. The fourth jig 228 also has a removably mounted connection base 229, and the third jig 226 is removably mounted on the connection base 229. The first jig 225 can be mounted on the connection base 229 laterally slidably relative to the second jig 226; the third jig 227 can be mounted on the connection base 229 of the fourth jig 228 laterally slidably relative to the fourth jig 228. The connection bases 229 of the second jig 226 and the fourth jig 228 are provided with a plurality of strip-shaped holes 2291 distributed laterally. A plurality of connection holes 230 are provided on the first jig 225 and the third jig 227, respectively, corresponding to the plurality of strip-shaped holes 2291. Bolts pass through the strip-shaped holes 2291 and are threadedly connected to the corresponding connection holes 230. By adjusting the lateral position of the first jig 225 relative to the second jig 226 or adjusting the lateral position of the third jig 227 relative to the fourth jig 228, the thickness of the boss and the depth of the recess can be adjusted to correspond to different offset bending distances, and the operation is flexible and convenient.
[0032] The connecting seat 229 includes a longitudinal connecting plate 2292 and a transverse connecting plate 2293, and the longitudinal connecting plate 2292 and the transverse connecting plate 2293 are connected to each other in an L shape. The longitudinal connecting plate 2292 is detachably connected to the rear end of the second fixture 226 or the rear end of the fourth fixture 228, and the transverse connecting plate 2293 is detachably connected to the side wall of the first fixture 225 or the side wall of the second fixture 226.
[0033] The offset bending mechanism 20 also includes a wire clamping and feeding device 30, which is a ring-shaped conveying device. The ring-shaped conveying device has a wire clamping block 31 that clamps one of the extension arms 11 of the flat wire 10. The wire clamping block 31 uses a clamping cylinder to drive the clamping or release of the extension arm 11.
[0034] The lifting drive device 24 includes a motor 241, a screw 242, and a slide 243. The motor 241 is mounted on the bracket 21. The screw 242 is vertically connected to the end of the motor 241 shaft. The slide 243 is vertically slidably mounted on the bracket 21 and rotatably cooperates with the screw 242. The motor 241 drives the screw 242 to rotate, and the slide 243 rises and falls along the screw 242. The extrusion drive device 23 is a cylinder, and the left and right jigs 221 and 222 are mounted on the cylinder output ends. A support frame 244 is provided laterally extending from the slide 243, and the cylinder is mounted on the support frame 244.
[0035] The working principle of the offset bending mechanism 20 is as follows: the flat wire 10 is driven by the wire clamping block 31 by the annular conveying device to feed the wire between the left clamp and the right clamp; when the flat wire 10 needs to be offset bent on the left side, the extrusion drive device 23 drives the left fixture 221 and the right fixture 222 to move closer to each other and squeeze the flat wire 10; the wire clamping block 31 clamps and fixes the lower end of the right extension arm 11 of the flat wire 10, the upper boss 223 of the second fixture 226 cooperates with the upper recess 224 of the fourth fixture 228 to press the right extension arm 11 tightly, and the upper recess 224 of the first fixture 225 and the upper boss 223 of the third fixture 227 cooperate with each other to squeeze the left extension arm 11 of the flat wire 10 to the right The side extension arm 11 is offset and bent; when the flat wire 10 needs to be offset and bent to the right, the lifting drive device 24 first lifts the extrusion jig 22. The purpose of lifting is mainly to make the corresponding positions of the boss 223 and the recess 224 on the jig correspond to the bending position of the flat wire 10. The wire clamping block 31 clamps and fixes the lower end of the left extension arm 11 of the flat wire 10. The recess 224 on the second jig 226 and the boss 223 on the fourth jig 228 cooperate to press the left extension arm 11 tightly. The boss 223 on the first jig 225 and the recess 224 on the third jig 227 cooperate with each other to squeeze the right extension arm 11 of the flat wire 10 to be offset and bent with the left extension arm 11.
[0036] The design focus of the present invention is that an extrusion jig, an extrusion drive device and a lifting drive device are combined to form an offset bending mechanism for the two extension arms of the flat wire. The offset bending mechanism has multiple jigs combined with multiple bosses and recesses. Under the condition of automatic height adjustment, the flat wire can be bent to the left and right to meet different flat wire bending requirements, providing convenience for the subsequent insertion of the flat wire into the stator; the overall structure of the mechanism is simple and the operation is flexible and convenient, which reduces a lot of manual labor for the processing of the flat wire, saves production costs and improves production efficiency.
[0037] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A flat wire offset bending mechanism, the flat wire comprising two U-shaped integrally connected extension arms, characterized in that: The bending mechanism includes a bracket, an extension arm for extruding the flat wire to one side so that the extension arm and the other extension arm are staggered with each other, an extrusion jig with two extension arms in two different planes, an extrusion drive device for driving the extrusion jig to move, and a lifting drive device for driving the extrusion jig to lift and lower, the lifting drive device is installed on the bracket; the extrusion drive device is installed on the output end of the lifting drive device, and the extrusion jig is installed on the output end of the extrusion drive device, the extrusion jig includes a left jig and a right jig, two bosses and two recesses are diagonally distributed on the end surface of the left jig facing the right jig, and two recesses and two bosses are diagonally distributed on the end surface of the right jig facing the left jig, after the extrusion drive device drives the left jig and the right jig to close, the boss on the left jig is adapted to the recess on the right jig, and the recess on the left jig is adapted to the boss on the right jig; The left jig includes a first jig and a second jig, and the first jig and the second jig are arranged side by side with each other; the right jig includes a third jig and a fourth jig, and the third jig and the fourth jig are arranged side by side with each other, the third jig is opposite to the first jig, and the fourth jig is opposite to the second jig; The first jig has a concave portion formed on its upper end and a convex portion formed on its lower end; the second jig has a convex portion formed on its upper end and a concave portion formed on its lower end; the third jig has a convex portion formed on its upper end and a concave portion formed on its lower end; the fourth jig has a concave portion formed on its upper end and a convex portion formed on its lower end; the concave portion of the first jig is matched with the convex portion of the third jig, the convex portion of the first jig is matched with the concave portion of the third jig, the convex portion of the second jig is matched with the concave portion of the fourth jig, and the concave portion of the second jig is matched with the convex portion of the fourth jig.
2. The offset bending mechanism for rectangular wire according to claim 1, characterized in that: A first connecting seat is detachably mounted on the second jig, and the first jig is detachably mounted on the first connecting seat; a second connecting seat is detachably mounted on the fourth jig, and the third jig is detachably mounted on the second connecting seat.
3. The offset bending mechanism for rectangular wire according to claim 2, characterized in that: The first jig can be installed on the first connecting seat in a transverse sliding manner relative to the second jig; the third jig can be installed on the second connecting seat on the fourth jig in a transverse sliding manner relative to the fourth jig.
4. The offset bending mechanism for rectangular wire according to claim 3, characterized in that: The first connecting seat on the second fixture and the second connecting seat on the fourth fixture are both laterally distributed with multiple strip holes, and multiple connecting holes are respectively provided on the first fixture and the third fixture corresponding to the multiple strip holes, and the bolts pass through the strip holes and are threadedly connected to the corresponding connecting holes.
5. The offset bending mechanism for rectangular wire according to claim 2, characterized in that: The first connecting seat and the second connecting seat both include a longitudinal connecting plate and a transverse connecting plate, which are connected to each other in an L shape. The longitudinal connecting plate is detachably connected to the rear end of the second fixture or the rear end of the fourth fixture, and the transverse connecting plate is detachably connected to the side wall of the first fixture or the side wall of the second fixture.
6. The offset bending mechanism for rectangular wire according to claim 1, characterized in that: It also includes a wire clamping and feeding device, which is an annular conveying device. The annular conveying device has a wire clamping block that clamps one of the extension arms of the flat wire.
7. The offset bending mechanism for rectangular wire according to claim 1, characterized in that: The lifting drive device includes a motor, a screw and a slide. The motor is installed on the bracket. The screw is vertically connected to the end of the motor shaft. The slide can be vertically slidably installed on the bracket and rotatably cooperate with the screw. The motor drives the screw to rotate and the slide rises and falls along the screw. The extrusion drive device is a cylinder, and the left jig and the right jig are installed on the output end of the cylinder.
8. The offset bending mechanism for rectangular wire according to claim 7, characterized in that: A support frame is horizontally extended on the slide seat, and the cylinder is installed on the support frame.
Citation Information
Patent Citations
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