Motor stator copper wire flaring-free head twisting device
By using a non-flaring twisting device for the copper wire stator of a motor, the precise insertion and twisting of the flat wire end is achieved through a blunted acute-angle structure and a pressing mechanism, which solves the problem of low production efficiency of flat wire motors and improves processing accuracy and efficiency.
Patent Information
- Application Number
- CN202422895738.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In the existing technology, the flat wire terminals of the flat wire motor stator need to be flared and aligned, which results in low production efficiency. Furthermore, after twisting, it is impossible to ensure that the wire ends of the stator are aligned, which affects the welding quality.
A non-flaring twisting device for motor stator copper wire is adopted. Through the combination of a pressing mechanism and a twisting mechanism, the stator copper wire is guided to bend and accurately inserted into the wire distribution hole using an acute-angle blunt structure. Combined with a clamping device and a sensor for precise control, the twisting process without flaring is realized.
Without the need for flaring, precise insertion and twisting of the inner and outer flat wire ends are achieved, shortening production time and improving production efficiency and processing accuracy.
Smart Images
Figure CN223514756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flat wire motor technology, and in particular to a motor stator copper wire twisting device that does not require flaring. Background Technology
[0002] With the continuous development of new energy vehicle technology, the number of flat wire layers required for the flat wire stator of the drive motor of new energy vehicles is increasing. Therefore, in order to improve the production efficiency and quality of flat wire motors, it is necessary to use a twisting mold to twist the flat wire terminals of the stator part of the flat wire motor. In order to ensure the smooth progress of the twisting operation, the flat wire terminals of the stator need to be flared. The flaring method ensures that before the flat wire stator starts twisting, end shaping and flaring processes are required to ensure that the flat wire can be inserted into the twisting mold or the wire needs to be manually inserted into the tooling mold. Moreover, after twisting, it is not possible to ensure that the wire ends of the stator are flush, and a trimming operation is required to meet the welding requirements, resulting in low production efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a motor stator copper wire twisting device that does not require flaring, in order to solve the problems existing in the prior art.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0005] A non-flaring twisting device for motor stator copper wire includes a worktable, a support frame on top of the worktable, multiple shock-absorbing feet on the bottom of the worktable, a stator fixture for fixing the stator copper wire, and a twisting mechanism fixedly installed on top of the worktable. The twisting mechanism includes a fixing part, a first hollow cylinder, a second hollow cylinder, a driving device, and a support rod. The driving device is located inside the worktable and is connected to the bottom of the support rod. The top periphery of the fixing part has multiple first threaded holes, and the fixing part is bolted to the top of the worktable. The bottom center of the fixing part has a first through hole, in which the support rod is fixedly installed. The periphery of the first through hole is fixedly installed with the first hollow cylinder, and the support rod is coaxially arranged with the first hollow cylinder. The bottom of the second hollow cylinder has a second through hole, and the top of the support rod is inserted into and fixed to the second hollow cylinder.
[0006] The first hollow cylinder has a first extension at its outer bottom end. The top of the first extension has a plurality of first dividing holes at equal intervals along the circumference of the first through hole. The top of the first hollow cylinder has an acute-angled chamfered structure. The top of the inner side of the first hollow cylinder is higher than the top of the outer side of the first hollow cylinder. The second hollow cylinder has a second extension at its outer bottom end. The top of the second extension has a plurality of second dividing holes at equal intervals along the circumference of the second through hole. The top of the second hollow cylinder has an acute-angled chamfered structure. The top of the inner side of the second hollow cylinder is higher than the top of the outer side of the second hollow cylinder.
[0007] A first mounting beam is bolted to the bottom front end of the support frame, and a second mounting beam is bolted to the bottom rear end of the support frame. The first and second mounting beams are arranged in parallel, and a pressing mechanism is provided between the first and second mounting beams. The pressing mechanism and the torsion mechanism are spaced apart.
[0008] By adopting the above technical solution, the stator copper wires come into contact with the acute-angled blunt structure at the top of the first and second hollow cylinders during the falling process, and bend along the inclination of the acute-angled blunt structure. However, after bending, these stator copper wires may not necessarily enter the multiple first and multiple second branch holes. At this time, the pressing mechanism needs to press the stator inward during the downward movement of the clamping device to be turned. At this time, the stator copper wires will be aligned with the branch holes and completely inserted into the corresponding branch holes by the clamping device. After the entire stator is completely placed, the turning mechanism will start to turn under the operation of the drive device. This omits the original flaring process and completes the task that originally required two processes directly in the turning process, greatly shortening the time required for the flat wire motor manufacturing.
[0009] In a further embodiment, the pressing mechanism includes a fixed plate, a turntable, a limiting plate, a first cylinder, a second cylinder, and multiple ejector pins, and a first through hole is provided at the top center of the fixed plate;
[0010] The front side of the fixed plate is provided with a first extension, the top of the first extension is provided with a first through groove, the top of the first through groove is provided with a first mounting seat, a first connecting block is slidably installed in the first through groove, a first cylinder is fixedly installed on the rear side of the first mounting seat, the front side of the first cylinder is fixedly connected to the rear side of the first mounting beam, and the telescopic rod of the first cylinder is drivenly connected to the top of the first connecting block.
[0011] The fixed plate has a second extension on its rear side, a second through groove on its top, a second mounting seat on its top, a first connecting block slidably installed in the second through groove, a second cylinder fixedly installed on the rear side of the second mounting seat, the rear side of the second cylinder fixedly connected to the front side of the second mounting beam, and the telescopic rod of the second cylinder being drivenly connected to the top of the second connecting block.
[0012] The turntable has a third through hole at the top center and multiple third through slots at equal intervals around its top. The turntable has a front extension and a rear extension on its front and rear sides, respectively. The top of the front extension is bolted to the bottom of the first connecting block and the top of the rear extension is bolted to the bottom of the second connecting block.
[0013] The top of the limiting plate is provided with a fourth through hole, and the top of the limiting plate is provided with multiple limiting grooves at equal intervals around the circumference. Each of the multiple limiting grooves is slidably installed with a ejector pin, and the top of each ejector pin is provided with a limiting post. The limiting post is used to cooperate with the third through groove on the turntable to control the ejector pin to slide back and forth.
[0014] The fixed plate, turntable, and limiting plate are all arranged coaxially and parallel, and the fixed plate and the limiting plate are bolted together.
[0015] By adopting the above technical solution, the fixed plate is mainly responsible for setting the first and second mounting seats, and setting the corresponding first and second cylinders. The two cylinders control the rotation of the turntable below through the through grooves on the fixed plate. The two extension parts of the turntable are fixedly connected to the top of the telescopic rods of the two cylinders, so the rotation of the turntable can be controlled by the different strokes of the two cylinders. The top of the turntable is provided with a vortex composed of multiple third through grooves. This vortex-shaped third through groove group corresponds one-to-one with the ejector pins that are slidably installed in the multiple limit grooves on the top of the limit plate. The limit post at the top of the ejector pin can slide in the irregular waist groove. Since the limit grooves of the limit plate are all straight, during the rotation of the turntable, the ejector pin will slide out from the limit groove along the rotation of the irregular waist groove, thereby realizing the function of pressing down on the falling stator copper wire.
[0016] In a further embodiment, a clamping device is provided on the top rear side of the support frame. The clamping device includes a mounting bridge, a third cylinder, and a snap-fit device. The left end of the mounting bridge is slidably mounted on the top left side of the support frame, and the right end of the mounting bridge is slidably mounted on the top right side of the support frame. The third cylinder is fixedly mounted at the top middle position of the mounting bridge, and the snap-fit device is fixedly mounted at the bottom end of the telescopic rod of the third cylinder. The snap-fit device is used to grip the stator fixture.
[0017] By adopting the above technical solution, in the process of machining without flaring and turning the head, the clamping device can complete the task of slowly lowering the stator fixture. After the machining is completed, the clamping device is responsible for lifting the stator fixture from the worktable again, so as to transport it to the next process.
[0018] In a further embodiment, a left-moving drag chain is provided on the top left side of the support frame from back to front, and a right linear guide rail is provided on the top right side of the support frame from back to front.
[0019] By adopting the above technical solution, after the clamping device clamps the stator fixture, the right linear guide rail on the support frame will start to move, thereby driving the left moving drag chain to move the mounting bridge to the top of the production line, while the clamping device is responsible for placing the stator fixture on the production line.
[0020] In a further embodiment, displacement sensors are spaced apart on the left side of the right linear guide rail.
[0021] By adopting the above technical solution, the displacement sensor can sense the movement of the right linear guide rail and determine the moving position of the cable tray, thereby achieving precise position control.
[0022] In a further embodiment, a plurality of infrared sensors are provided on the top of the workbench.
[0023] By adopting the above technical solution, infrared sensors are used to sense the distance between the stator tooling and the top pressing mechanism and the top of the worktable, and compare it with the set height of the turning mechanism to prevent collisions.
[0024] In summary, this utility model has the following beneficial effects:
[0025] 1. By setting up a pressing mechanism and a twisting mechanism, the ends of the inner and outer flat wires can be aligned with the wire-separating holes of the twisting mechanism without the need for a flaring process. This allows the ends of the inner and outer flat wires to be accurately inserted into the twisting mechanism. Then, the twisting process of the inner and outer flat wires is achieved by rotating the first hollow cylinder and the second hollow cylinder in opposite directions. Finally, the twisting of all flat wires is completed by lifting and lifting. This integrates the originally necessary steps into the same process, shortening the production line distance and saving production time, thus greatly improving production efficiency.
[0026] 2. By setting up the clamping device, the third cylinder can control the clamping device to clamp and fix the top of the stator fixture, while the right linear guide and the left moving drag chain control the back and forth movement of the clamping device, thereby achieving the effect of fixing the fixture.
[0027] 3. By setting up infrared sensors and displacement sensors, the position and distance of the stator tooling movement can be accurately monitored, thereby effectively improving the accuracy of the machining process. Attached Figure Description
[0028] Figure 1 This is an overall schematic diagram of a motor stator copper wire unflaring twisting head device according to this utility model;
[0029] Figure 2 This is a structural diagram illustrating the top-pressing mechanism in a motor stator copper wire non-flaring torsion head device of this utility model;
[0030] Figure 3 This is a structural diagram illustrating the positional relationship between the turntable, the first cylinder, and the second cylinder in a motor stator copper wire non-flaring torsion head device of this utility model.
[0031] Figure 4 This is a schematic diagram of the structure used to illustrate the positional relationship between the limiting plate and the ejector pin in a motor stator copper wire non-flaring torsion head device of this utility model.
[0032] In the diagram, 1. Workbench; 2. Support frame; 3. Shock-absorbing pads; 4. Twisting mechanism; 41. First hollow cylinder; 42. Second hollow cylinder; 43. Drive device; 44. Support rod; 5. First mounting beam; 6. Second mounting beam; 7. Pressing mechanism; 71. Fixed plate; 72. Turntable; 73. Limiting plate; 74. First cylinder; 75. Second cylinder; 76. Ejector pin; 8. Clamping device; 9. Displacement sensor; 10. Infrared sensor. Detailed Implementation
[0033] The present invention will be further described in detail below with reference to the accompanying drawings.
[0034] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.
[0035] Example 1:
[0036] like Figure 1As shown, a non-flaring twisting device for motor stator copper wire includes a workbench 1, a support frame 2 mounted on top of the workbench 1, multiple shock-absorbing pads 3 mounted on the bottom of the workbench, a stator fixture for fixing the stator copper wire, and a twisting mechanism 4 fixedly mounted on top of the workbench 1. A clamping device 8 is provided on the rear top side of the support frame 2. A left-moving drag chain is provided on the left side of the top of the support frame 2 from back to front. A right linear guide rail is provided on the right side of the top of the support frame 2 from back to front. Displacement sensors 9 are spaced apart on the left side of the right linear guide rail. The clamping device 8 includes a mounting bridge, a third cylinder, and a locking device. The left end of the mounting bridge is slidably mounted on the top left side of the support frame 2, and the right end of the mounting bridge is slidably mounted on the support frame 2. On the top right side, a third cylinder is fixedly installed at the top center of the mounting bridge. A snap-fit device is fixedly installed at the bottom end of the telescopic rod of the third cylinder. The snap-fit device is used to grip the stator fixture. Multiple infrared sensors 10 are provided on the top of the workbench 1. The turning mechanism 4 includes a fixed part, a first hollow cylinder 41, a second hollow cylinder 42, a drive device 43, and a support rod 44. The drive device 43 is located inside the workbench 1 and is connected to the bottom of the support rod 44. Multiple first threaded holes are provided on the top periphery of the fixed part. The fixed part is bolted to the top of the workbench 1. A first through hole is provided at the bottom center of the fixed part. The support rod 44 is fixedly installed in the first through hole. A first hollow cylinder 41 is fixedly installed around the periphery of the first through hole. The support rod 44 is coaxially arranged with the first hollow cylinder 41. A second hollow cylinder 42 has a second through hole at its bottom. The top of the support rod 44 is inserted into and fixed to the second hollow cylinder 42. A first extension is provided at the outer bottom end of the first hollow cylinder 41. A plurality of first branch holes are evenly spaced along the circumference of the first through hole at the top of the first extension. The top of the first hollow cylinder 41 has an acute-angled chamfered structure. The inner top end of the first hollow cylinder 41 is higher than the outer top end of the first hollow cylinder 41. A second extension is provided at the outer bottom end of the second hollow cylinder 42. A plurality of second branch holes are evenly spaced along the circumference of the second through hole at the top of the second extension. The second hollow cylinder 42 has a blunted acute-angle structure at its top, and the inner top of the second hollow cylinder 42 is higher than the outer top. A first mounting beam 5 is bolted to the front bottom of the support frame 2, and a second mounting beam 6 is bolted to the rear bottom of the support frame 2. The first mounting beam 5 and the second mounting beam 6 are arranged parallel to each other, and a pressing mechanism 7 is provided between them. The pressing mechanism 7 is spaced apart from the twisting mechanism 4. Through the clamping device 8 and the pressing mechanism 7, the pressing mechanism 7 presses down on the stator copper wire as it is fixed by the tooling and slowly lowered above the twisting mechanism 4 by the clamping device 8.The stator copper wires, guided by the obtuse angle structure, are pressed into multiple first and second branching holes in batches. After pressing, the first and second hollow cylinders of the turning mechanism 4 rotate in opposite directions, thus completing the turning. This eliminates the flaring process, significantly reducing production time for the flat wire motor and effectively improving production efficiency.
[0037] like Figures 1-4 As shown, the pressing mechanism 7 includes a fixed plate 71, a turntable 72, a limiting plate 73, a first cylinder 74, a second cylinder 75, and multiple ejector pins 76. The fixed plate 71 has a first through hole at the top center. A first extension is provided on the front side of the fixed plate 71, and a first through groove is provided at the top of the first extension. A first mounting seat is provided at the top of the first through groove, and a first connecting block is slidably installed within the first through groove. The first cylinder 74 is fixedly mounted on the rear side of the first mounting seat. The front side of the first cylinder 74 is fixedly connected to the rear side of the first mounting beam 5. The extension and retraction of the first cylinder 74... The rod is drivenly connected to the top of the first connecting block. A second extension is provided on the rear side of the fixed disk 71. A second through groove is provided on the top of the second extension. A second mounting seat is provided on the top of the second through groove. The first connecting block is slidably installed in the second through groove. A second cylinder 75 is fixedly installed on the rear side of the second mounting seat. The rear side of the second cylinder 75 is fixedly connected to the front side of the second mounting beam 6. The telescopic rod of the second cylinder 75 is drivenly connected to the top of the second connecting block. A third through hole is provided at the center of the top of the turntable 72. Multiple third through holes are equally spaced around the top of the turntable 72. The turntable 72 has a front extension and a rear extension on its front and rear sides, respectively. The top of the front extension is bolted to the bottom of the first connecting block, and the top of the rear extension is bolted to the bottom of the second connecting block. The top of the limiting plate 73 has a fourth through hole, and the top of the limiting plate 73 has multiple limiting grooves evenly spaced around its circumference. Each of the multiple limiting grooves has a ejector pin 76 slidably installed in it. The top of each ejector pin 76 has a limiting post, which cooperates with the third through groove on the turntable 72 to control the back-and-forth sliding of the ejector pin 76. The fixed plate 71, the turntable 72, and the limiting plate are all connected together. All 73 are coaxially parallel, and the fixed plate 71 is bolted to the limiting plate 73. Through the first mounting seat, the second mounting seat, the first through groove and the second through groove on the fixed plate 71, the telescopic rods of the first cylinder 74 and the second cylinder 75 are fixed to the front extension and the rear extension of the turntable 72. The rotation of the turntable 72 can be controlled by changing the cylinder stroke. With the cooperation of the spiral composed of multiple third through grooves on the turntable 72 and the ejector pins 76 installed in the multiple limiting grooves of the limiting plate 73, the ejector pins 76 can be pushed outward while the turntable 72 is rotating, so as to press the stator copper wire into the dividing hole.
[0038] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A non-flaring twisting device for stator copper wire of an electric motor, comprising a workbench (1), a support frame (2) disposed on the top of the workbench (1), a plurality of shock-absorbing pads (3) disposed on the bottom of the workbench, a stator fixture for fixing the stator copper wire, and a twisting mechanism (4) fixedly installed on the top of the workbench (1), characterized in that: The torsion mechanism (4) includes a fixing part, a first hollow cylinder (41), a second hollow cylinder (42), a driving device (43), and a support rod (44). The driving device (43) is located inside the workbench (1). The driving device (43) is connected to the bottom of the support rod (44) in a transmission connection. The top periphery of the fixing part is provided with a plurality of first threaded holes. The fixing part is bolted to the top of the workbench (1). The bottom middle position of the fixing part is provided with a first through hole. The support rod (44) is fixedly installed in the first through hole. The periphery of the first through hole is fixedly installed with the first hollow cylinder (41). The support rod (44) is coaxially arranged with the first hollow cylinder (41). The bottom of the second hollow cylinder (42) is provided with a second through hole. The top of the support rod (44) is inserted and fixed to the second hollow cylinder (42). The first hollow cylinder (41) has a first extension at its outer bottom end. The top of the first extension is provided with a plurality of first dividing holes at equal intervals along the circumference of the first through hole. The top of the first hollow cylinder (41) is provided with an acute-angled chamfered structure. The top of the inner side of the first hollow cylinder (41) is higher than the top of the outer side of the first hollow cylinder (41). The second hollow cylinder (42) has a second extension at its outer bottom end. The top of the second extension is provided with a plurality of second dividing holes at equal intervals along the circumference of the second through hole. The top of the second hollow cylinder (42) is provided with an acute-angled chamfered structure. The top of the inner side of the second hollow cylinder (42) is higher than the top of the outer side of the second hollow cylinder (42). The first mounting beam (5) is bolted to the bottom front end of the support frame (2), and the second mounting beam (6) is bolted to the bottom rear end of the support frame (2). The first mounting beam (5) and the second mounting beam (6) are arranged in parallel, and a pressing mechanism (7) is provided between the first mounting beam (5) and the second mounting beam (6). The pressing mechanism (7) and the torsion mechanism (4) are spaced apart.
2. The motor stator copper wire unflaring twisting device according to claim 1, characterized in that: The top pressing mechanism (7) includes a fixed plate (71), a turntable (72), a limiting plate (73), a first cylinder (74), a second cylinder (75), and multiple ejector pins (76). A first through hole is provided at the top center of the fixed plate (71). The front side of the fixed plate (71) is provided with a first extension, the top of the first extension is provided with a first through groove, the top of the first through groove is provided with a first mounting seat, a first connecting block is slidably installed in the first through groove, a first cylinder (74) is fixedly installed on the rear side of the first mounting seat, the front side of the first cylinder (74) is fixedly connected to the rear side of the first mounting beam (5), and the telescopic rod of the first cylinder (74) is drivenly connected to the top of the first connecting block. The fixed plate (71) is provided with a second extension on the rear side, a second through groove is provided at the top of the second extension, a second mounting seat is provided at the top of the second through groove, a first connecting block is slidably installed in the second through groove, a second cylinder (75) is fixedly installed on the rear side of the second mounting seat, the rear side of the second cylinder (75) is fixedly connected to the front side of the second mounting beam (6), and the telescopic rod of the second cylinder (75) is connected to the top of the second connecting block in a transmission connection. The turntable (72) has a third through hole at the top center and a plurality of third through slots at equal intervals around the top of the turntable (72). The front side and the rear side of the turntable (72) are respectively provided with a front extension and a rear extension. The top of the front extension is bolted to the bottom of the first connecting block and the top of the rear extension is bolted to the bottom of the second connecting block. The top of the limiting plate (73) is provided with a fourth through hole, and the top of the limiting plate (73) is provided with multiple limiting grooves at equal intervals in the circumference. Each of the multiple limiting grooves is slidably installed with a ejector pin (76). The top of each ejector pin (76) is provided with a limiting post. The limiting post is used to cooperate with the third through groove on the turntable (72) to control the ejector pin (76) to slide back and forth. The fixed disk (71), turntable (72) and limiting disk (73) are all arranged coaxially and parallel, and the fixed disk (71) and the limiting disk (73) are bolted and fixed.
3. The motor stator copper wire unflaring twisting device according to claim 1, characterized in that: A clamping device (8) is provided on the top rear side of the support frame (2). The clamping device (8) includes a mounting bridge, a third cylinder, and a snap-fit device. The left end of the mounting bridge is slidably mounted on the top left side of the support frame (2), and the right end of the mounting bridge is slidably mounted on the top right side of the support frame (2). The third cylinder is fixedly mounted at the top middle position of the mounting bridge. The snap-fit device is fixedly mounted at the bottom end of the telescopic rod of the third cylinder. The snap-fit device is used to grip the stator fixture.
4. The motor stator copper wire unflaring twisting device according to claim 3, characterized in that: The support frame (2) has a left moving drag chain on the top left side from back to front, and a right linear guide rail on the top right side from back to front.
5. The motor stator copper wire unflaring twisting head device according to claim 4, characterized in that: Displacement sensors (9) are spaced apart on the left side of the right linear guide rail.
6. The motor stator copper wire unflaring twisting device according to claim 1, characterized in that: The top of the workbench (1) is equipped with multiple infrared sensors (10).