A coil slot press

Abstract

The utility model relates to motor stator coil processing technical field provides a kind of coil slot presser, it includes: servo indexing chuck device, slot driving device, positioning adjustment device, rack;Servo indexing chuck device includes three-jaw chuck, index rotation control component, first support;Slot driving device includes pressing plate, vertical telescopic control component, second support, the front end of pressing plate is located the center hole of three-jaw chuck, the rear end of pressing plate is connected with second support by vertical telescopic control component;Positioning adjustment device includes first cylinder, second cylinder, first position adjusting block, second position adjusting block, third support, relative movement control component.Advantage: by machine instead of manual slot pressing action, index rotation control component makes three-jaw chuck and stator core gradually rotate according to the angle set, pressing plate carries out slot pressing action to the notch of all embedded wire slot of stator core, press back embedded wire slot with the coil and insulating paper that emerge, improve efficiency, reduce manual labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of motor stator coil processing technology, specifically to a coil grooving machine. Background Technology

[0002] The stator of an electric motor mainly consists of a stator core and coils. The coils are typically metal wires coated with an insulating varnish. Part of the coil is wrapped in insulating paper and embedded in the winding slots of the stator core, while the other part of the coil is located outside the winding slots and protrudes from both ends of the stator core. The coils are usually installed in the stator core manually or using a winding machine. The insulating paper serves to prevent the coils from separating from the stator core, thus protecting the coils.

[0003] See Figures 1 to 3 The stator core 1 is cylindrical in shape, and has multiple winding slots 11 evenly spaced around its circumference. When the coil 12 is inserted into the winding slot 11 of the stator core 1, improper operation by the operator can easily cause the coil 12 and insulating paper 13 to protrude from the slot opening 111, interfering with the subsequent rotor assembly into the stator. Therefore, it is necessary to press the coil and insulating paper back into the winding slot. Traditionally, the operator holds a pressure plate, inserts it into the center hole of the stator core, aligns the pressure plate with the slot opening, and manually presses the protruding coil and insulating paper back into the winding slot. However, manual pressing is inefficient.

[0004] Therefore, in order to improve the efficiency of pressing the protruding coil and insulating paper back into the winding groove, there is an urgent need in this technical field for a coil pressing machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a coil grooving machine.

[0006] The technical solution of this utility model is achieved as follows: a coil grooving machine, comprising: Servo indexing gripper device, groove driving device, positioning and adjustment device, frame; The servo indexing gripper device includes a three-jaw chuck, an indexing rotation control component, and a first support. The three-jaw chuck is connected to the first support through the indexing rotation control component, and the first support is fixedly connected to the frame. The pressure groove driving device includes a pressure plate, a vertical telescopic control component, and a second support. The front end of the pressure plate is located at the center hole of the three-jaw chuck, and the rear end of the pressure plate is connected to the second support through the vertical telescopic control component. The second support is fixedly connected to the frame and is also located behind the first support. The positioning and adjustment device includes a first roller, a second roller, a first adjusting block, a second adjusting block, a third support, and a relative movement control component. The first roller is rotatably connected to the top of the first adjusting block, and the second roller is rotatably connected to the top of the second adjusting block. The first roller and the second roller are located on the left and right sides of the pressure plate, respectively. The bottom of the first adjusting block and the bottom of the second adjusting block are both connected to the third support through the relative movement control component. The third support is fixedly connected to the frame and is located in front of the first support.

[0007] Furthermore, the indexing rotation control assembly includes a first servo motor, a drive gear, and a driven gear. The first servo motor is mounted on the first support. The output shaft of the first servo motor is fixedly connected to the center hole of the drive gear. The center hole of the driven gear is fixedly connected to the outer circumferential side of the three-jaw chuck. The drive gear and the driven gear are meshed. The first support is provided with a rotating hole, and the outer circumferential side of the three-jaw chuck is also located in the rotating hole.

[0008] Furthermore, the vertical telescopic control assembly includes a cylinder, a guide rail, and a slider. The tail end of the pressure plate is fixedly connected to the slider, and the slider is slidably connected to the guide rail. The guide rail is vertically arranged and fixedly connected to the second support. The cylinder is mounted on the base plate, and the telescopic end of the cylinder is fixedly connected to the pressure plate.

[0009] Furthermore, the relative movement control component includes a second servo motor, a spur screw, and a reverse screw. The second servo motor is mounted on the third support. The output shaft of the second servo motor is connected to the left end of the spur screw. The right end of the spur screw is aligned with and fixedly connected to the left end of the reverse screw. The right end of the reverse screw is connected to the third support via a bearing. The upper surface of the third support is provided with a first strip-shaped sliding hole and a second strip-shaped sliding hole. The first adjusting block passes downward through the first strip-shaped sliding hole. The bottom of the first adjusting block is provided with a first screw hole, which is screwed into the spur screw. The second adjusting block passes downward through the second strip-shaped sliding hole. The bottom of the second adjusting block is provided with a second screw hole, which is screwed into the reverse screw.

[0010] Furthermore, the positioning adjustment device also includes a lifting and moving control assembly, which includes a third servo motor, a ball screw, a lifting rod, and a fixing block. The upper end of the lifting rod is fixedly connected to the lower surface of the third support, and the lower end of the lifting rod is slidably connected to the frame. The lifting rod and the nut portion of the ball screw are connected through the fixing block. The output shaft of the third servo motor is connected to the rod end of the ball screw through a coupling. The third servo motor is mounted on the frame.

[0011] Compared with the prior art, the beneficial effects or advantages of this utility model are as follows: the slotting action is performed by machine instead of manual labor. First, the slot of one of the winding slots of the stator core is aligned with the lower side of the pressure plate. Then, the stator core is clamped by a three-jaw chuck. The positions of the first roller and the second roller are adjusted so that the first roller and the second roller support the stator core from the left and right sides. The vertical extension control component causes the pressure plate to perform a slotting action. The pressure plate moves downward into the slot of the winding slot and then moves upward back to its original position. The indexing rotation control component causes the three-jaw chuck and the stator core to rotate gradually at a set angle. The pressure plate performs a slotting action on all the winding slots of the stator core, pressing the protruding coil and insulation paper back into the winding slot, thereby improving efficiency and reducing the intensity of manual labor. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram showing that both the coil and the insulating paper are located within the winding groove in the background technology.

[0014] Figure 2 This is a schematic diagram of the background technology showing the coil and insulating paper emerging from the slot of the winding groove.

[0015] Figure 3 This is a schematic diagram of the stator core structure in the background technology.

[0016] Figure 4 This is a schematic diagram of the structure of a coil grooving machine according to this utility model.

[0017] Figure 5 This is a schematic diagram of the pressing plate of this utility model generating the pressing groove action.

[0018] Figure 6 This is a schematic diagram showing the positions of the three-jaw chuck, stator core, second roller, pressure plate, guide rail, and cylinder of this utility model.

[0019] Figure 7 This is a schematic diagram of the groove driving device of this utility model.

[0020] Figure 8This is a schematic diagram showing the positions of the first roller, the second roller, the first adjusting block, the second adjusting block, and the third support of this utility model.

[0021] Figure 9 This is a schematic diagram showing the positions of the motion control component and the lifting motion control component of this utility model.

[0022] Figure 10 This is a schematic diagram of the indexing rotation control component of this utility model.

[0023] Figure 11 This is a schematic diagram showing the positions of the hexagonal rod, three-jaw chuck, and clamping adjustment part of this utility model.

[0024] Reference numerals: Stator core 1; Wire groove 11; Slot 111; Coil 12; Insulating paper 13; Servo indexing gripper device 2; Three-jaw chuck 21; Gripper 211; Clamping adjustment part 212; Indexing rotation control component 22; First servo motor 221; Drive gear 222; Driven gear 223; First support 23; Telescopic drive component 231; Clamping servo motor 232; Hexagonal rod 233; Slotting drive device 3; Pressure plate 31; Vertical telescopic control component 32; Cylinder 321; Guide rail 322; slider 323; second support 33; positioning adjustment device 4; first roller 41; second roller 42; first adjusting block 43; second adjusting block 44; third support 45; first strip-shaped sliding hole 451; second strip-shaped sliding hole 452; relative movement control component 46; second servo motor 461; positive thread screw 462; negative thread screw 463; lifting and moving control component 47; third servo motor 471; ball screw 472; lifting rod 473; fixed block 474; frame 5. Detailed Implementation

[0025] See Figures 1 to 11 The preferred embodiment of this utility model.

[0026] A coil grooving machine, comprising: 1. Servo indexing gripper device; 2. Grooving drive device; 3. Positioning adjustment device; 4. Frame; The servo indexing gripper device 2 includes a three-jaw chuck 21, an indexing rotation control component 22, and a first support 23. The three-jaw chuck 21 and the first support 23 are connected through the indexing rotation control component 22, and the first support 23 is fixedly connected to the frame 5. The pressure groove driving device 3 includes a pressure plate 31, a vertical telescopic control component 32, and a second support 33. The front end of the pressure plate 31 is located in the center hole of the three-jaw chuck 21. The rear end of the pressure plate 31 is connected to the second support 33 through the vertical telescopic control component 32. The second support 33 is fixedly connected to the frame 5 and is also located behind the first support 23. The positioning adjustment device 4 includes a first roller 41, a second roller 42, a first adjusting block 43, a second adjusting block 44, a third support 45, and a relative movement control component 46. The first roller 41 is rotatably connected to the top of the first adjusting block 43, and the second roller 42 is rotatably connected to the top of the second adjusting block 44. The first roller 41 and the second roller 42 are located on the left and right sides of the pressure plate 31, respectively. The bottom of the first adjusting block 43 and the bottom of the second adjusting block 44 are connected to the third support 45 through the relative movement control component 46. The third support 45 is fixedly connected to the frame 5 and is located in front of the first support 23.

[0027] The beneficial effects or advantages of this utility model are as follows: The slotting action is performed by machine instead of manual labor. First, the slot 111 of one of the winding slots 11 of the stator core 1 is aligned with the lower side of the pressure plate 31. Then, the stator core 1 is clamped by the three-jaw chuck 21. The positions of the first roller 41 and the second roller 42 are adjusted so that the first roller 41 and the second roller 42 support the stator core 1 from the left and right sides. The vertical telescopic control component 32 causes the pressure plate 31 to perform a slotting action. The pressure plate 31 moves downward into the slot 111 of the winding slot 11 and then moves upward back to its original position. The indexing rotation control component 22 causes the three-jaw chuck 21 and the stator core 1 to rotate gradually at a set angle. The pressure plate 31 performs a slotting action on all the slots 111 of the winding slots 11 of the stator core 1, pressing the protruding coil 12 and insulating paper 13 back into the winding slot 11, thereby improving efficiency and reducing the intensity of manual labor.

[0028] In this embodiment, the stator core 1 has twenty-four winding slots 11, evenly spaced in a circle. The indexing rotation control component 22 moves by dividing the circumference into several precise equal parts, rotating one division at a time and stopping once. In this embodiment, the indexing rotation control component 22 causes the three-jaw chuck 21 to rotate 15° each time, for a total of twenty-four rotations, so that the slot openings 111 of the winding slots 11 of the stator core 1 are aligned sequentially with the lower side of the pressure plate 31. The pressing action of the pressure plate 31 is to first move downward into the slot opening 111 of the winding slot 11, and then move upward back to its original position. After completing one pressing action, the three-jaw chuck 21 performs one indexing rotation, and then the pressure plate 31 performs another pressing action. The pressing action of the pressure plate 31 presses the protruding coil 12 and insulating paper 13 back into the winding slot 11.

[0029] The relative movement control component 46 is used to change the distance between the first roller 41 and the second roller 42; according to the actual specifications of the stator core 1, the positions of the first roller 41 and the second roller 42 are adjusted so that the first roller 41 and the second roller 42 contact the outer circumference of the stator core 1 and stably support the stator core 1; when the stator core 1 rotates with the three-jaw chuck 21, the first roller 41 and the second roller 42 also rotate accordingly, and when the pressure plate 31 performs the pressing action, the first roller 41 and the second roller 42 support the stator core 1.

[0030] Furthermore, the indexing rotation control assembly 22 includes a first servo motor 221, a drive gear 222, and a driven gear 223. The first servo motor 221 is mounted on the first support 23. The output shaft of the first servo motor 221 is fixedly connected to the center hole of the drive gear 222. The center hole of the driven gear 223 is fixedly connected to the outer circumferential side of the three-jaw chuck 21. The drive gear 222 and the driven gear 223 are meshed. The first support 23 is provided with a rotating hole, and the outer circumferential side of the three-jaw chuck 21 is also located in the rotating hole.

[0031] The beneficial effects of this technical solution are: servo motors can achieve very precise positioning and motion control, have high-precision closed-loop control, and also feature fast response and strong stability. The first servo motor 221 controls the three-jaw chuck 21 to produce indexing rotation.

[0032] The outer circumferential side of the three-jaw chuck 21 has a clamping adjustment part 212. The operator uses a hex wrench to insert into the clamping adjustment part 212 to change the clamping tightness of the three jaws 211 of the three-jaw chuck 21.

[0033] Alternatively, a telescopic drive assembly 231 is installed on the first support 23. This telescopic drive assembly 231 is connected to a clamping servo motor 232, and the output shaft of the clamping servo motor 232 is connected to a hexagonal rod 233. The telescopic drive assembly 231 is a cylinder. When it is necessary to change the clamping tightness of the three jaws 211 of the three-jaw chuck 21, the telescopic drive assembly 231 moves the clamping servo motor 232 closer to the clamping adjustment part 212 of the three-jaw chuck 21, and the hexagonal rod 233 is inserted into the clamping adjustment part 212. When the clamping servo motor... When the servo motor 232 outputs forward rotation, the hexagonal lever 233 and the clamping adjustment part 212 rotate in the forward direction, and the three jaws 211 of the three-jaw chuck 21 clamp. When the servo motor 232 outputs reverse rotation, the hexagonal lever 233 and the clamping adjustment part 212 rotate in the opposite direction, and the three jaws 211 of the three-jaw chuck 21 release. After clamping and releasing, the telescopic drive assembly 231 moves the servo motor 232 away from the three-jaw chuck 21, and the hexagonal lever 233 disengages from the clamping adjustment part 212. Initially, the clamping adjustment part 212 of the three-jaw chuck 21 is aligned with the hexagonal lever 233. After the three-jaw chuck 21 rotates through indexing, after one revolution, the clamping adjustment part 212 of the three-jaw chuck 21 is realigned with the hexagonal lever 233.

[0034] Furthermore, the vertical telescopic control component 32 includes a cylinder 321, a guide rail 322, and a slider 323. The tail end of the pressure plate 31 is fixedly connected to the slider 323, and the slider 323 is slidably connected to the guide rail 322. The guide rail 322 is vertically arranged and fixedly connected to the second support 33. The cylinder 321 is mounted on the base plate, and the telescopic end of the cylinder 321 is fixedly connected to the pressure plate 31.

[0035] The beneficial effects of this technical solution are: the reciprocating extension and retraction of the cylinder 321 drives the pressure plate 31 to produce a pressing action, and the cooperation between the slider 323 and the guide rail 322 helps to improve the movement stability of the pressure plate 31.

[0036] Further, the relative movement control component 46 includes a second servo motor 461, a spur screw 462, and a reverse screw 463. The second servo motor 461 is mounted on the third support 45. The output shaft of the second servo motor 461 is connected to the left end of the spur screw 462. The right end of the spur screw 462 is aligned with and fixedly connected to the left end of the reverse screw 463. The right end of the reverse screw 463 is connected to the third support 45 via a bearing. The upper surface of the third support 45 is provided with a first strip-shaped sliding hole 451 and a second strip-shaped sliding hole 452. The first adjusting block 43 passes downward through the first strip-shaped sliding hole 451. The bottom of the first adjusting block 43 is provided with a first screw hole, which is screwed into the spur screw 462. The second adjusting block 44 passes downward through the second strip-shaped sliding hole 452. The bottom of the second adjusting block 44 is provided with a second screw hole, which is screwed into the reverse screw 463.

[0037] The beneficial effects of this technical solution are as follows: When the second servo motor 461 outputs a forward rotation, the spur screw 462 and the reverse screw 463 rotate forward simultaneously. The first adjusting block 43 and the second adjusting block 44 move towards the center along the first strip-shaped sliding hole 451 and the second strip-shaped sliding hole 452, respectively, thus reducing the distance between the first roller 41 and the second roller 42. When the second servo motor 461 outputs a reverse rotation, the spur screw 462 and the reverse screw 463 rotate in the opposite direction simultaneously. The first adjusting block 43 and the second adjusting block 44 disperse to both sides along the first strip-shaped sliding hole 451 and the second strip-shaped sliding hole 452, thus increasing the distance between the first roller 41 and the second roller 42. This achieves automatic adjustment of the distance between the first roller 41 and the second roller 42. The helix direction of the spur screw is right-handed; the helix direction of the reverse screw is left-handed.

[0038] Furthermore, the positioning adjustment device 4 also includes a lifting and moving control component 47, which includes a third servo motor 471, a ball screw 472, a lifting rod 473, and a fixing block 474. The upper end of the lifting rod 473 is fixedly connected to the lower surface of the third support 45, and the lower end of the lifting rod 473 is slidably connected to the frame 5. The nut portion of the lifting rod 473 and the ball screw 472 are connected through the fixing block 474. The output shaft of the third servo motor 471 is connected to the rod end of the ball screw 472 through a coupling. The third servo motor 471 is mounted on the frame 5.

[0039] The beneficial effects of this technical solution are as follows: The lifting and moving control component 47 is used to change the height of the first roller 41 and the second roller 42; when the third servo motor 471 outputs forward rotation, the nut part of the ball screw 472, the fixing block 474, the lifting rod 473, and the third support 45 move upward; when the third servo motor 471 outputs reverse rotation, the nut part of the ball screw 472, the fixing block 474, the lifting rod 473, and the third support 45 move downward; thereby changing the height of the third support 45, and thus the height of the first roller 41 and the second roller 42 also changes accordingly; achieving automatic adjustment of the height of the first roller 41 and the second roller 42. In conjunction with the relative movement control component 46, the first roller 41 and the second roller 42 more effectively and stably support the stator core 1.

[0040] This utility model also includes an operation panel, which has a PLC controller. The operation panel is electrically connected to the servo indexing gripper device 2, the grooving drive device 3, and the positioning adjustment device 4. Through the cooperation between the servo indexing gripper device 2, the grooving drive device 3, and the positioning adjustment device 4, the grooving action is completed in an orderly manner.

[0041] This utility model provides a coil pressing machine, which aims to replace manual pressing of the stator core 1, and efficiently press the protruding coil 12 and insulating paper 13 back into the winding groove 11, thereby improving the quality of the motor stator.

[0042] The working principle of this utility model is as follows: The operator places the stator core 1 onto the pressure plate 31 of the slotting drive device 3, adjusts the angle of the stator core 1 so that the lower side of the pressure plate 31 aligns with the slot 111 of one of the winding slots 11 of the stator core 1, and then clamps the stator core 1 with the three-jaw chuck 21 of the servo indexing gripper device 2. The positions of the first roller 41 and the second roller 42 of the positioning adjustment device 4 are then adjusted so that the first roller 41 and the second roller 42 contact and support the stator core 1 from below. The vertical telescopic control component 32 moves the pressure plate 31 downwards into the slot of the winding slot 11. The pressure plate 31 moves upward back to its original position, and the indexing rotation control component 22 rotates the three-jaw chuck 21 by a specified angle, so that the slot 111 of the next winding slot 11 of the stator core 1 is aligned with the lower side of the pressure plate 31. The pressure plate 31 continues to perform the slot pressing action. Then the stator core 1 rotates by a specified angle, and the pressure plate 31 sequentially performs the slot pressing action on all the slots 111 of the winding slots 11 of the stator core 1, ensuring that the protruding coil 12 and insulating paper 13 are pressed back into the winding slots 11, improving efficiency. Finally, the three-jaw chuck 21 releases the stator core 1, and the operator removes the stator core 1.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A coil slotting machine characterized by, include: Servo indexing gripper device, groove driving device, positioning and adjustment device, frame; The servo indexing gripper device includes a three-jaw chuck, an indexing rotation control component, and a first support. The three-jaw chuck is connected to the first support through the indexing rotation control component, and the first support is fixedly connected to the frame. The pressure groove driving device includes a pressure plate, a vertical telescopic control component, and a second support. The front end of the pressure plate is located at the center hole of the three-jaw chuck, and the rear end of the pressure plate is connected to the second support through the vertical telescopic control component. The second support is fixedly connected to the frame and is also located behind the first support. The positioning and adjustment device includes a first roller, a second roller, a first adjusting block, a second adjusting block, a third support, and a relative movement control component. The first roller is rotatably connected to the top of the first adjusting block, and the second roller is rotatably connected to the top of the second adjusting block. The first roller and the second roller are located on the left and right sides of the pressure plate, respectively. The bottom of the first adjusting block and the bottom of the second adjusting block are both connected to the third support through the relative movement control component. The third support is fixedly connected to the frame and is located in front of the first support.

2. A coil slotting machine according to claim 1, characterized in that The indexing rotation control assembly includes a first servo motor, a drive gear, and a driven gear. The first servo motor is mounted on the first support. The output shaft of the first servo motor is fixedly connected to the center hole of the drive gear. The center hole of the driven gear is fixedly connected to the outer circumferential side of the three-jaw chuck. The drive gear and the driven gear are meshed. The first support is provided with a rotating hole, and the outer circumferential side of the three-jaw chuck is also located in the rotating hole.

3. The coil slotting machine of claim 1, wherein, The relative movement control assembly includes a second servo motor, a spur screw, and a reverse screw. The second servo motor is mounted on the third support. The output shaft of the second servo motor is connected to the left end of the spur screw. The right end of the spur screw is aligned with and fixedly connected to the left end of the reverse screw. The right end of the reverse screw is connected to the third support via a bearing. The upper surface of the third support is provided with a first strip-shaped sliding hole and a second strip-shaped sliding hole. The first adjusting block passes downward through the first strip-shaped sliding hole. The bottom of the first adjusting block is provided with a first screw hole, which is screwed into the spur screw. The second adjusting block passes downward through the second strip-shaped sliding hole. The bottom of the second adjusting block is provided with a second screw hole, which is screwed into the reverse screw.

4. The coil slotting machine of claim 1, wherein, The positioning and adjustment device further includes a lifting and moving control component, which includes a third servo motor, a ball screw, a lifting rod, and a fixing block. The upper end of the lifting rod is fixedly connected to the lower surface of the third support, and the lower end of the lifting rod is slidably connected to the frame. The lifting rod and the nut part of the ball screw are connected through the fixing block. The output shaft of the third servo motor is connected to the rod end of the ball screw through a coupling. The third servo motor is mounted on the frame.

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