Device for bending flat wire in winding of flat wire motor

Abstract

The invention discloses a device for bending a flat wire in a flat wire motor winding. The device comprises a guide device, a servo motor, a supporting clamping plate, a tooth-shaped belt, a driven tooth-shaped belt wheel, a bending die holder, a transmission guide plate and a feeding device. The guiding device comprises a guiding sliding shaft, a driving toothed belt wheel, a supporting gear, a connecting base, a connecting lead screw, a positioning sliding rail and a fixing motor, the driving toothed belt wheel is arranged on the side face of the connecting base, the supporting gear and the driving toothed belt wheel are coaxially arranged and arranged in the connecting base, and the connecting lead screw is arranged on the inner side of the supporting gear; the fixed motor is arranged at one end of the connecting screw rod, the connecting screw rod is provided with a limiting sliding seat capable of axially moving along the connecting screw rod, the limiting sliding seat is arranged in the positioning sliding rail and can move up and down along the positioning sliding rail, the positioning sliding rail is vertically arranged, and the guide sliding shaft is arranged in front of the positioning sliding rail and is perpendicular to the positioning sliding rail. The device for bending the flat wire in the flat wire motor winding is simple to operate, high in bending efficiency and wide in adaptability.

Description

Technical Field

[0001] The invention relates to a device for bending flat wires in a flat wire motor winding, belonging to the technical field of motor processing equipment. Background Art

[0002] The difference between flat wire motors and round wire motors lies in the way the copper wire is formed. Flat wire is conducive to improving the slot fill rate of the motor. Generally, the slot fill rate of round wire motors is about 40%, while the slot fill rate of flat wire motors can reach more than 60%. The increase in slot fill rate means that more copper wire can be filled in without changing the space, generating a stronger magnetic field strength and improving power density.

[0003] As disclosed in the utility model patent with patent number CN201822270693.2, this technology provides a device for bending flat wires in flat wire motor windings, which can bend flat wires with different bending angles and bending lengths in a winding layer at one time to prevent the flat wires from deforming in the thickness direction of the flat wires. It includes a rotating sleeve and a driving device. A flat wire I holding groove is opened on the outer circumference of the rotating sleeve, and each flat wire I holding groove is opposite to the end of part or all of the flat wires. When the rotating sleeve moves axially toward the end of the iron core, the end of the flat wire I can extend into the opposite flat wire I holding groove. When the rotating sleeve rotates, the flat wire I bends in the circumferential direction of the iron core. On the same circumference, the outer circumference of the flat wire surrounds the guide sleeve, and the outer circumference of the guide sleeve contacts the outer side of the flat wire in the radial direction to prevent the flat wire from deforming radially outward in the stator iron core when the flat wire is bent. The limiting section is connected to the holding section, and the outer circumference of the limiting section contacts the inner side of the flat wire in the radial direction to prevent the flat wire from deforming radially inward in the stator iron core when the flat wire is bent.

[0004] Chinese patent document CN201920269674.X discloses a bending tool for flat copper wire for motor winding, comprising an upper die, a lower die and a positioning block; the positioning block and the lower die are both fixed on a workbench, an upper connecting part is provided at one end of the upper die, and a lower connecting part is provided at one end of the lower die, the upper connecting part and the lower connecting part are rotatably connected, and a gap is formed at the connection, an upper wire groove is provided on the upper die, and a lower wire groove is provided on the lower die, one end of the flat copper wire to be bent is clamped in the upper wire groove, and the other end is clamped in the lower wire groove after passing through the gap, and abuts against the positioning block.

[0005] The existing device for bending the flat wire in the winding of the flat wire motor has insufficient efficiency in bending the flat wire in the flat wire motor, and is not convenient for the integrated processing operation of loading, bending and unloading the flat wire, which greatly prolongs the processing time of the flat wire and reduces the overall processing efficiency. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a device for bending flat wires in flat wire motor windings, which has simple operation, high bending efficiency and wide adaptability.

[0007] The present invention proposes a technical solution to solve the above technical problems: a device for bending flat wires in flat wire motor windings, including a guide device, a servo motor, a supporting card plate, a toothed belt, a driven toothed belt pulley, a bending die base, a transmission guide plate and a feeding device.

[0008] The guide device includes a guide slide shaft, an active toothed pulley, a supporting gear, a connecting base, a connecting screw, a positioning slide rail and a fixed motor. The active toothed pulley is arranged on the side of the connecting base, the supporting gear is coaxially arranged with the active toothed pulley and is arranged in the connecting base, the connecting screw is arranged on the inner side of the supporting gear, the fixed motor is arranged at one end of the connecting screw, the connecting screw is provided with a limiting slide seat which can move axially along the connecting screw, the limiting slide seat is arranged in the positioning slide rail and can move up and down along the positioning slide rail, the positioning slide rail is arranged vertically, and the guide slide shaft is arranged in front of the positioning slide rail and is perpendicular to the positioning slide rail.

[0009] The driving toothed belt wheel is meshed with the driving toothed belt wheel through a toothed belt conveyor and is engaged with the driving toothed belt wheel through a toothed belt conveyor. The driving toothed belt wheel is meshed ...

[0010] The device for bending flat wires in the windings of a flat wire motor of the present invention further comprises a connecting sealing plate, and the connecting sealing plate is detachably connected to the top of the connecting base.

[0011] The bending die base includes a positioning guide seat, a limiting clamping shaft and a bending clamping plate. The limiting clamping shaft is arranged at both ends of the bending die base and is clamped with the supporting slide rail. The guide rotating plate is rotatably connected to one end of the transmission guide plate, and the other end of the transmission guide plate is rotatably connected to the limiting clamping shaft. The bending clamping plate is arranged at the bottom of the positioning guide seat, and three groups of positioning clamping grooves are opened at equal intervals at the bottom of the bending clamping plate.

[0012] The feeding device comprises a guide housing, the inner end surface of the guide housing is provided with a support guide groove for limiting, three groups of support slide plates are provided at equal intervals at the bottom of the guide housing, and the guide slide groove runs through the support slide plate.

[0013] The guide sliding shaft comprises a position-limiting guide shaft for support and three groups of guide rods arranged at equal intervals at the front of the position-limiting guide shaft.

[0014] The inner bottom of the connecting base is provided with a clamping slide groove, and the clamping slide groove is slidably clamped with the bottom of the positioning slide rail.

[0015] The limiting slide seat comprises a limiting rotating rod for support and a threaded guide seat symmetrically fixedly connected to both ends of the limiting rotating rod, and the threaded guide seat is slidably connected to the inner side of the supporting gear through a connecting screw thread.

[0016] The side end surface of the positioning guide seat is symmetrically provided with a connecting side plate for limiting, the inner side of the connecting side plate is provided with a spring clamping plate, the side of the spring clamping plate is fixedly provided with a positioning plug plate, the top of the bending clamping plate is provided with a limiting clamping plate for limiting, the bottom of the positioning guide seat is provided with a limiting groove corresponding to the limiting clamping plate, and the connecting side plate is elastically clamped with the bending clamping plate through the positioning plug plate.

[0017] The present invention has positive effects: (1) The device for bending flat wires in the windings of flat wire motors of the present invention is provided with a guide device. When performing a cyclic bending operation on the flat wire, the user can use the linkage and coordination relationship between the active toothed pulley, the supporting gear, the limit slide seat and the positioning slide rail to enable the guide slide shaft to cyclically guide the flat wires inside the feeding device. While guiding the flat wires, the bending die seat can stably bend the flat wires, thereby effectively improving the bending efficiency of the flat wires.

[0018] (2) The device for bending flat wires in flat wire motor windings of the present invention is provided with a bending die base. When replacing different bending pallets, the user can slide the spring pallet and the positioning plug plate to release the restriction on the side wall of the bending pallet. At the same time, the user can slide the spring pallet to the outside through the limiting pallet, thereby facilitating the replacement of the bending pallet, thereby effectively improving the adaptability of the device to bending different flat wires.

[0019] (3) The device for bending the flat wire in the winding of a flat wire motor of the present invention is provided with a connecting screw and a limit slide. When adjusting the bending length of the flat wire, the user can fix the motor to drive the connecting screw to rotate, thereby adjusting the position of the limit slide inside the supporting gear, and then adjusting the distance of the guide slide shaft to move, thereby facilitating the subsequent rapid adjustment of the bending position of the flat wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The device for bending flat wires in flat wire motor windings of the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the main structure of the device for bending flat wires in the windings of a flat wire motor according to Example 1; Figure 2 It is a main body side view of the device for bending flat wires in flat wire motor windings of embodiment 1; Figure 3 This is a disassembled view of the guide device of the device for bending flat wires in the windings of a flat wire motor according to Embodiment 1; Figure 4 This is a schematic structural diagram of a guide device for bending a flat wire in a flat wire motor winding according to Embodiment 1; Figure 5 This is a schematic structural diagram of a bending die base of a device for bending a flat wire in a flat wire motor winding according to Example 1; Figure 6 This is a schematic structural diagram of a feeding device for bending flat wires in a flat wire motor winding according to Embodiment 1; Figure 7 This is a disassembled view of a bending die base of a device for bending a flat wire in a flat wire motor winding according to Example 2; Figure 8 This is a schematic diagram of the bending die base structure of the device for bending flat wires in flat wire motor windings according to Example 2.

[0022] The above-mentioned reference numerals are as follows: Guide device 1, connecting sealing plate 11, guide slide shaft 12, active toothed belt pulley 13, supporting gear 14, connecting base 15, connecting screw rod 16, limiting slide seat 17, positioning slide rail 18, fixing motor 19, servo motor 2, supporting card plate 3, toothed belt 4, guide rotating plate 5, driven toothed belt pulley 6, bending die base 7, positioning guide seat 71, limiting card shaft 72, bending card plate 73, positioning card groove 74, connecting side plate 75, spring card plate 76, positioning plug plate 77, limiting card plate 78, transmission guide plate 8, feeding device 9, guide shell 91, guide slide groove 92, supporting slide plate 93, supporting guide groove 94, supporting slide rail 10. DETAILED DESCRIPTION Example 1

[0023] See Figures 1 to 6The device for bending flat wires in the flat wire motor winding of this embodiment comprises a guide device 1, a servo motor 2, a supporting card plate 3, a toothed belt 4, a driven toothed belt wheel 6, a bending die base 7, a transmission guide plate 8 and a feeding device 9. The guide device 1 comprises a guide slide shaft 12, an active toothed belt wheel 13, a supporting gear 14, a connecting base 15, a connecting screw rod 16, a positioning slide rail 18 and a fixing motor 19. The active toothed belt wheel 13 is arranged on the side of the connecting base 15, and the supporting gear 14 is coaxially arranged with the active toothed pulley 13 and is arranged in the connecting base 15, the connecting screw 16 is arranged on the inner side of the supporting gear 14, the fixed motor 19 is arranged at one end of the connecting screw 16, and the connecting screw 16 is provided with a limiting slide 17 which can move axially along the connecting screw 16, the limiting slide 17 is arranged in the positioning slide rail 18 and can move up and down along the positioning slide rail 18, the positioning slide rail 18 is arranged vertically, and the guide slide shaft 12 is arranged in front of the positioning slide rail 18 and is perpendicular to the positioning slide rail 18.

[0024] The support card plate 3 is arranged outside the active toothed belt wheel 13 and fixed to the connecting base 15. The servo motor 2 is arranged on the support card plate 3 and connected to the active toothed belt wheel 13. The front of the connecting base 15 is provided with symmetrically arranged support slide rails 10. The bending die base 7 is arranged between the symmetrically arranged support slide rails 10. Both ends of the bending die base 7 are clamped with the support slide rails 10 and can move up and down along the support slide rails 10. The driven toothed belt wheel 6 is arranged on the side of the connecting base 15 close to the support slide rail 10. A guide rotating plate 5 is fixedly provided at the center of the outer end surface of the driven toothed belt pulley 6, and the guide rotating plate 5 is rotatably connected to the end of the bending die base 7 through the transmission guide plate 8. The driven toothed belt pulley 6 is meshed with the active toothed belt pulley 13 through the toothed belt 4. The feeding device 9 is arranged on the connecting base 15 and is adjacent to the supporting slide rail 10. A guide slide groove 92 is provided at the bottom of the feeding device 9, and the guide slide groove 92 is sleeved on the guide slide shaft 12, and the guide slide shaft 12 can move along the guide slide groove 92.

[0025] If it is necessary to adaptively bend flat wires of different lengths, the user can start the two sets of fixed motors 19 so that the fixed motors 19 can drive the connecting screw 16 to rotate, thereby adjusting the position of the limiting slide 17 inside the supporting gear 14, and then regulating the distance of the guide slide shaft 12.

[0026] In order to prevent debris from entering and thus affecting the rotation of the supporting gear 14 , the device for bending flat wires in flat wire motor windings of this embodiment further includes a connecting sealing plate 11 detachably connected to the top of the connecting base 15 .

[0027] The bending die base 7 includes a positioning guide seat 71, a limiting clamping shaft 72 and a bending clamping plate 73. The limiting clamping shaft 72 is arranged at both ends of the bending die base 7 and is clamped with the supporting slide rail 10. The guide rotating plate 5 is rotatably connected to one end of the transmission guide plate 8, and the other end of the transmission guide plate 8 is rotatably connected to the limiting clamping shaft 72. The bending clamping plate 73 is arranged at the bottom of the positioning guide seat 71, and three groups of positioning slots 74 are evenly spaced at the bottom of the bending clamping plate 73.

[0028] The feeding device 9 includes a guide housing 91 . The inner end surface of the guide housing 91 is provided with a support guide groove 94 for limiting. Three groups of support slide plates 93 are evenly spaced at the bottom of the guide housing 91 . The guide slide groove 92 passes through the support slide plate 93 .

[0029] The guide slide shaft 12 includes a limit guide shaft for support and three groups of guide rods arranged at equal intervals in front of the limit guide shaft. The guide rods can facilitate the subsequent decoupling operation of the flat wire inside the guide slide groove 92, thereby improving the processing efficiency of the flat wire.

[0030] A clamping groove is provided at the inner bottom of the connecting base 15 , and the clamping groove is slidably clamped with the bottom of the positioning slide rail 18 .

[0031] The limiting slide 17 includes a limiting rotating rod for support and threaded guide seats symmetrically fixedly connected to both ends of the limiting rotating rod. The threaded guide seats are threadedly slidably connected to the inner side of the supporting gear 14 through the connecting screw 16.

[0032] When the device for bending flat wires in the windings of flat wire motors of the present embodiment is in use, the user can convey multiple groups of flat wires to be bent to the inside of the feeding device 9 through the external feeding device, so as to facilitate the subsequent continuous feeding and bending of the flat wires. When the flat wires are cyclically bent, the user can start the servo motor 2 through the external control device. At this time, the servo motor 2 can drive the internal active toothed belt wheel 13 to rotate. At the same time, when the active toothed belt wheel 13 rotates, the active toothed belt wheel 13 can drive the internal limiting slide 17 to rotate in a circle outside the two groups of supporting gears 14 through the supporting gear 14, so that the limiting slide 17 can cooperate with the positioning slide rail 18 when rotating in a circle, and then cyclically drive the positioning slide rail 18 to move back and forth inside the connecting base 15, so that the positioning slide rail 18 can drive The guide slide shaft 12 circulates forward and backward at the bottom of the feeding device 9, and then circulates the flat wire to be processed. The exported flat wire is just located directly below the bending die base 7. While the flat wire is circulated, the two sets of active toothed belt pulleys 13 can also synchronously drive the driven toothed belt pulley 6 to rotate through the toothed belt 4, so that the driven toothed belt pulley 6 can circulate through the guide turn plate 5 and the transmission guide plate 8 to drive the bending die base 7 to move up and down inside the supporting slide rail 10. When the positioning slide rail 18 drives the guide slide shaft 12 to export the flat wire inside the feeding device 9, the bending die base 7 is located at the top of the supporting slide rail 10. At the same time, when the positioning slide rail 18 returns, the bending die base 7 can bend the exported flat wire. After the bending is completed, a new set of flat wires can push and export the bent flat wire. Example 2

[0033] See Figure 7 and Figure 8 The device for bending flat wires in flat wire motor windings of this embodiment is the same as that of embodiment 1 in other parts, except that: a connecting side plate 75 for limiting is symmetrically provided on the side end surface of the positioning guide seat 71, a spring clamping plate 76 is provided on the inner side of the connecting side plate 75, a positioning plug plate 77 is fixedly provided on the side of the spring clamping plate 76, a limiting clamping plate 78 for limiting is provided on the top of the bending clamping plate 73, a limiting groove corresponding to the limiting clamping plate 78 is provided on the bottom of the positioning guide seat 71, and the connecting side plate 75 is elastically clamped with the bending clamping plate 73 through the positioning plug plate 77.

[0034] When the device for bending flat wires in flat wire motor windings of this embodiment is in use, it is necessary to replace the bending clamp 73 to facilitate the bending operation of different flat wires. At this time, the user can pull the spring clamp 76 to the outside so that the two groups of spring clamps 76 can drive the positioning plug plate 77 to move outward, thereby releasing the restriction on the side wall of the bending clamp 73. At the same time, the user can slide the spring clamp 76 to the outside through the limiting clamp 78, thereby facilitating the replacement of the bending clamp 73.

[0035] Obviously, the above embodiments are merely examples for clearly illustrating the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A device for bending flat wires in flat wire motor windings, characterized in that: It comprises a guide device (1), a servo motor (2), a supporting card plate (3), a toothed belt (4), a driven toothed belt wheel (6), a bending die base (7), a transmission guide plate (8) and a feeding device (9); The guide device (1) comprises a guide slide shaft (12), an active toothed belt wheel (13), a support gear (14), a connecting base (15), a connecting screw (16), a positioning slide rail (18) and a fixed motor (19), wherein the active toothed belt wheel (13) is arranged on a side of the connecting base (15), the supporting gear (14) is coaxially arranged with the active toothed belt wheel (13) and is arranged in the connecting base (15), the connecting screw (16) is arranged on the inner side of the supporting gear (14), and the fixed motor (19) is arranged on the connecting screw (16), a limit slide (17) is provided on the connecting screw (16) and can move axially along the connecting screw (16), the limit slide (17) is arranged in the positioning slide rail (18) and can move up and down along the positioning slide rail (18), the positioning slide rail (18) is arranged vertically, the guide slide shaft (12) is arranged in front of the positioning slide rail (18) and is perpendicular to the positioning slide rail (18), the support card plate (3) is arranged on the outside of the active toothed belt wheel (13) and is fixed to the connecting base (15), and the servo motor (2) is arranged On the supporting clamping plate (3) and connected to the driving toothed belt wheel (13), the front of the connecting base (15) is provided with symmetrically arranged supporting slide rails (10), the bending die base (7) is arranged between the symmetrically arranged supporting slide rails (10), the two ends of the bending die base (7) are clamped with the supporting slide rails (10) and can move up and down along the supporting slide rails (10), the driven toothed belt wheel (6) is arranged on the side of the connecting base (15) close to the supporting slide rail (10), and a guide wheel is fixedly provided at the center of the outer end surface of the driven toothed belt wheel (6). The guide rotating plate (5) is rotatably connected to the end of the bending die base (7) through a transmission guide plate (8), the driven toothed belt wheel (6) is meshedly connected to the driving toothed belt wheel (13) through a toothed belt (4), the feeding device (9) is arranged on the connecting base (15) and is adjacent to the supporting slide rail (10), and a guide slide groove (92) is provided at the bottom of the feeding device (9), the guide slide groove (92) is sleeved on the guide slide shaft (12), and the guide slide shaft (12) can move along the guide slide groove (92).

2. The device for bending flat wires in flat wire motor windings according to claim 1, characterized in that: It also comprises a connecting sealing plate (11), wherein the connecting sealing plate (11) is detachably connected to the top of the connecting base (15).

3. The device for bending flat wires in flat wire motor windings according to claim 2, characterized in that: The bending die base (7) comprises a positioning guide seat (71), a limiting clamping shaft (72) and a bending clamping plate (73); the limiting clamping shaft (72) is arranged at both ends of the bending die base (7) and is clamped with the supporting slide rail (10); the guide rotating plate (5) is rotatably connected to one end of the transmission guide plate (8); the other end of the transmission guide plate (8) is rotatably connected to the limiting clamping shaft (72); the bending clamping plate (73) is arranged at the bottom of the positioning guide seat (71); and three groups of positioning clamping grooves (74) are arranged at equal intervals at the bottom of the bending clamping plate (73).

4. The device for bending flat wires in flat wire motor windings according to claim 3, characterized in that: The feeding device (9) comprises a guide housing (91), the inner end surface of the guide housing (91) is provided with a support guide groove (94) for limiting, the bottom of the guide housing (91) is provided with three groups of support slide plates (93) at equal intervals, and the guide slide groove (92) passes through the support slide plate (93).

5. The device for bending flat wires in flat wire motor windings according to claim 4, characterized in that: The guide sliding shaft (12) comprises a position limiting guide shaft for support and three groups of guide rods arranged at equal intervals in front of the position limiting guide shaft.

6. The device for bending flat wires in flat wire motor windings according to claim 5, characterized in that: The inner bottom of the connecting base (15) is provided with a snap-fitting slide groove, and the snap-fitting slide groove is slidably snap-fitted with the bottom of the positioning slide rail (18).

7. The device for bending flat wires in flat wire motor windings according to claim 6, characterized in that: The limiting slide seat (17) comprises a limiting rotating rod for support and threaded guide seats symmetrically fixedly connected to both ends of the limiting rotating rod, and the threaded guide seats are threadedly slidably connected to the inner side of the supporting gear (14) via a connecting screw rod (16).

8. The device for bending flat wires in flat wire motor windings according to any one of claims 1 to 7, characterized in that: A connecting side plate (75) for limiting position is symmetrically arranged on the side end surface of the positioning guide seat (71); a spring clamping plate (76) is arranged on the inner side of the connecting side plate (75); a positioning plug plate (77) is fixedly arranged on the side of the spring clamping plate (76); a limiting clamping plate (78) for limiting position is arranged on the top of the bending clamping plate (73); a limiting groove corresponding to the limiting clamping plate (78) is arranged on the bottom of the positioning guide seat (71); and the connecting side plate (75) is elastically clamped with the bending clamping plate (73) via the positioning plug plate (77).

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