Stator assembly production process and equipment

Abstract

The invention relates to a stator assembly production process and equipment, the stator assembly production process comprises nine production steps, and in the third step, a copper wire winding of a stator is shaped, so that the produced stator is high in size qualification rate and good in product assembly performance.

Description

Technical Field

[0001] The present invention relates to the technical field of motor processing, and particularly to a production process and equipment for a stator assembly. Background Art

[0002] During the production process of the stator assembly, copper wires need to be wound around the stator core. In the existing production process, effective shaping treatment cannot be performed on the copper wires wound around the stator core, resulting in large errors in the dimensions of the produced stator assembly and affecting its assembly with the motor housing. Summary of the Invention

[0003] This application provides a production process and equipment for a stator assembly. By shaping the outer shape of the stator during the stator production process, the dimensions of the produced stator meet the requirements.

[0004] The production process and equipment for a stator assembly provided by this application adopt the following technical solutions: A production process and equipment for a stator assembly: Step 1: Wind the copper wire onto the wire embedding machine. Step 2: Place the stator on the wire embedding machine and use the wire embedding machine to embed the wound copper wire onto the stator to form a copper wire winding, thereby completing the preliminary production of the stator. Step 3: Place the stator on the stator coil flaring machine and use the stator coil flaring machine to perform flaring and shaping on the inner diameter of the copper wire winding of the stator, so that the inner diameter of the ports at both ends of the copper wire winding of the stator meets the requirements; then use the stator coil shaping machine to press and shape the copper wire winding of the stator, so that the outer diameters at both ends of the copper wire winding of the stator and the height of both ends of the copper wire winding meet the requirements; then cut the too long lead wires on the copper wire winding of the stator; then adjust the angle of the lead wires on the stator. Step 4: Perform paint stripping treatment on the lead wires on the stator and control the length of the non-painted part of the lead wires to the stop. Step 5: Perform a withstand voltage test on the stator. Step 6: Perform tinning treatment on the surface of the stator. Step 7: Perform inter-turn inspection on the copper wire winding of the stator to ensure that there are no quality problems such as broken wires in the copper wire winding. Step 8: Perform dip painting treatment on the stator. Step 9: Perform quality inspection and packaging on the stator.

[0005] By adopting the above technical solutions, the outer shape of the stator is shaped during the stator production process, so that the dimensions of the produced stator are within the specified range, ensuring its assembly performance.

[0006] Preferably, in step three, the stator coil flaring machine includes a machine body, a moving seat arranged on the machine body and sliding up and down along the Z-axis direction, an oil cylinder arranged on the machine body for driving the moving seat to slide, and a flaring end arranged on the moving seat; a fixture for clamping the stator is slidably and rotatably connected to the machine body along the X-axis direction, and the end of the movement path of the fixture is located directly below the flaring end; connecting rods are respectively arranged on both sides of the fixture, and two groups of first control mechanisms are arranged on the machine body, and each group of first control mechanisms is used to control the reciprocating movement of one connecting rod; first one-way bearings are sleeved on both connecting rods, and the outer ring of the first one-way bearing drives the inner ring of the first one-way bearing to rotate when rotating in the reverse direction; rubber wheels are sleeved on the outer ring of the first one-way bearing, and two friction tracks are arranged on the machine body, and the two friction tracks are respectively located on the movement paths of the two rubber wheels. When the rubber wheels move close to the lower part of the flaring end, they contact the friction tracks and rotate forward, and when the rubber wheels move away from the lower part of the flaring end, they contact the friction tracks and rotate in the reverse direction.

[0007] By adopting the above technical solution, after the fixture clamps the stator, the two groups of first control mechanisms control the movement of the two connecting rods so that the fixture transports the stator to the lower part of the flaring end. Synchronously, the moving seat moves downward so that the flaring end moves downward. Finally, the flaring end moves into the top port of the copper wire winding on the stator, and then the flaring end performs flaring treatment on the copper wire winding on the stator so that the inner diameter of one side port of the copper wire winding meets the requirements. After the flaring of one side port of the copper wire winding is completed, the moving seat moves upward and drives the flaring port to move away from the stator. Then the first control mechanism controls the two connecting rods to move back to their original positions. During the process of the two connecting rods moving back to their original positions, the two rubber wheels contact the friction tracks and rotate in the reverse direction. The reverse rotation of the two rubber wheels will drive the inner rings of the two first one-way bearings and the connecting rods to flip 180 degrees, so that the chuck and the stator flip 180 degrees, making the unflared end of the copper wire winding face upward, preparing for flaring.

[0008] Preferably, the first control mechanism includes a first rotating rod and a second rotating rod rotatably connected to the machine body, a first sprocket sleeved on the first rotating rod, a second sprocket sleeved on the second rotating rod, a chain sleeved on the first sprocket and the second sprocket, a push-pull block arranged on the chain, and a first driving part for driving the first rotating rod to rotate. The axes of the first rotating rod and the second rotating rod are both parallel to the Y-axis, and the first rotating rod is located below the moving seat; a fitting groove is opened on the push-pull block, the connecting rod is located in the fitting groove, and the push-pull block contacts the connecting rod during the movement process to drive the connecting rod to move. When the machine body is in the unstarted state, the push-pull block is located above the second sprocket.

[0009] By adopting the above technical solution, when the first driving part drives the first rotating rod to rotate forward, the first sprocket will be driven to rotate forward. When the first sprocket rotates forward, it will drive the chain to transmit forward, so that the push-pull block moves closer to the first rotating rod. When the push-pull block moves closer to the first rotating rod, it will drive the fixture to move closer to the first rotating rod through the connecting rod, and finally move the stator on the fixture to directly below the reaming end. After the reaming end reams the inner hole at one end of the copper wire winding, the first driving part drives the first rotating rod to rotate reversely to drive the first sprocket to rotate reversely. When the first sprocket rotates reversely, the chain will be driven to transmit reversely, and the push-pull block will move away from the first rotating rod. When the push-pull block moves away from the first rotating rod, it will drive the fixture to move back through the connecting rod.

[0010] Preferably, the first driving part includes a first gear sleeved on the first rotating rod and a rack arranged on the moving seat. The first gear is located below the rack, and the first rack meshes with the gear. During the downward movement of the reaming end, the rack will move out of engagement with the first gear.

[0011] By adopting the above technical solution, when the moving seat moves downward, it will drive the rack to move downward. During the downward movement of the rack, the first gear is driven to rotate forward, and when the first gear rotates forward, it will drive the first rotating rod to rotate forward. Subsequently, when the rack moves out of engagement with the first gear, the push-pull block drives the fixture and the stator to move directly below the reaming end. At this time, there is still a certain distance between the reaming end and the stator. Subsequently, the reaming end will move into the top port of the copper wire winding, and then the copper wire winding will be reamed. After the reaming end finishes reaming, the moving seat moves upward, driving the reaming end and the rack to move upward. When the reaming end moves away from the stator by a certain distance, the rack moves into engagement with the first gear and drives the first gear to rotate reversely. When the first gear rotates reversely, it will drive the first rotating rod to rotate reversely, and finally achieve the effect of driving the fixture to move back to its original position.

[0012] Preferably, two sliding seats are arranged on the machine body. The two connecting rods are located between the two sliding seats. Sliding grooves are formed on the mutually approaching surfaces of the two sliding seats. Installation rods are slidably connected in the two sliding grooves along the X-axis direction; the connecting rod includes a first rod body and a second rod body. The first rod body is rotatably connected to the second rod body. The fixture includes two clamping heads, and the two clamping heads are respectively arranged on the two first rod bodies. Two first one-way bearings are respectively sleeved on the two first rod bodies; the two second rod bodies are respectively slidably connected to the two installation rods along the Y-axis direction, and the two second rod bodies are respectively located in two matching grooves. Two groups of second control mechanisms are further arranged on the machine body, and one group of second control mechanisms is used to control the sliding movement of one second rod body.

[0013] By adopting the above technical solution, when the stator is placed on the machine body, first place the stator between the two chucks, and then the two second control mechanisms control the two second rods to move closer to each other so that the two chucks clamp the stator, completing the fixation of the stator. After the stator reaming is completed and the two chucks move back to their original positions, the second control mechanism controls the two second rods to move away from each other, canceling the clamping of the stator by the two chucks so that the stator can be picked up and taken out.

[0014] Preferably, mounting grooves are formed on the end faces of the two mounting rods close to each other, and the mounting grooves penetrate through the mounting rods. The two second rods are respectively slidably connected in the two mounting grooves. The second control mechanism includes a placement groove formed on the side wall of the mounting groove, a spring disposed in the placement groove and sleeved on the second rod, a connection block disposed on the second rod, and a second driving portion. The spring is always in a compressed state, and the elastic force of the spring acts on the connection block, and the spring always drives the connection block to move away from the placement groove; the second driving portion is used to drive the second rod to move into the mounting groove.

[0015] By adopting the above technical solution, when the machine body is in an unstarted state, the second driving portion controls the column of the mounting rod to be located in the mounting groove, so that the spring is compressed by force. After the stator is placed between the two chucks, the second driving portion releases the driving restriction on the mounting rod, and the spring rebounds to drive the connection block and the second rod to move out of the mounting groove, so that the two chucks clamp the stator. After the stator reaming is completed and the two chucks move back to their original positions, the two second driving portions drive the two second rods to move into the mounting groove to cancel the clamping of the stator by the chucks.

[0016] Preferably, avoidance holes are formed on the side walls of the two sliding grooves away from each other, and the avoidance holes are close to the side of the sliding groove away from the first rod; a fitting groove is formed on the push-pull block. The second driving portion includes a resisting block disposed in the fitting groove and an inclined surface formed on the second rod. The resisting block is located on the side of the inclined surface close to the first rotating rod, and the resisting block always fits against the second inclined surface; when the machine body is in an unstarted state, the resisting block fits against the inclined surface, the mounting rod fits against the side wall of the sliding groove away from the rotating rod, the second rod does not contact the side wall of the fitting groove away from the first rotating rod, and the resisting block presses the second rod so that the end of the second rod away from the chuck extends into the avoidance hole; when the push-pull block approaches the first rotating rod, the second rod fits against the side wall of the sliding groove provided with the avoidance hole; during the process of the push-pull block moving away from the first rod, the resisting block presses the inclined surface so that the second rod is forced to move into the mounting groove.

[0017] By adopting the above technical solution, after the stator is placed between the two chucks, the machine body is started. After the machine body is started, the two push-pull blocks will move closer to the first rod. During the process of the two push-pull blocks moving closer to the first rotating rod, the two abutting blocks cancel the pressing against the two inclined surfaces, and the two springs will rebound and drive the two second rods to move closer to each other through the two connecting blocks, so that the two chucks clamp the stator. At this time, the second rod is flush with the side wall of the sliding groove provided with the avoidance hole. Finally, when the two chucks clamp the stator, the side of the mating groove away from the first rotating rod will abut against the second rod. Then the two push-pull blocks will pull the two second rods and the stator to move closer to the first rotating rod together. Finally, the stator moves below the end of the hole expanding head, and then the hole expanding head expands the copper wire winding on the stator. After the copper wire winding on the stator is expanded, the two push-pull blocks will move back to their original positions. During the process of the push-pull blocks moving back to their original positions, they will push the components such as the two second rods to move back to their original positions. When the two mounting rods move to abut against the side walls of the two sliding grooves away from the first rod, the two second rods will not move further in the X-axis direction. At this time, the two avoidance holes communicate with the mounting groove. Although the two second rods will not move, the push-pull blocks will still move a certain distance. Subsequently, the two push-pull blocks will continue to move and drive the two second rods to move away from each other and move into the two avoidance holes by pressing against the inclined surfaces. When the two second rods move away from each other, the two chucks will loosen the stator and cancel the clamping of the stator, and the stator can be taken out.

[0018] Preferably, a placement table for placing the stator is provided on the machine body, and the placement table is located between the two sliding seats.

[0019] By adopting the above technical solution, the placement position of the stator is guided, which is convenient for the precise placement of the stator.

[0020] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention shapes the outer shape of the stator during the production process of the stator, so that the size of the produced stator meets the requirements; 2. During the process of expanding the hole of the copper wire winding on the stator, the present invention automatically flips the stator without manual flipping; 3. The present invention can complete the automatic clamping and loosening of the stator by the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the process flow chart of the stator assembly production.

[0022] Figure 2 is the structural schematic diagram of the coil flaring machine.

[0023] Figure 3 is Figure 2 the cross-sectional view of the coil flaring machine along the A-A line in

[0024] Figure 4 is Figure 2 The sectional view of the coil flaring machine along line B-B in

[0025] Figure 5 is Figure 2 The partial enlarged view at position C in

[0026] Figure 6 is Figure 2 The partial enlarged view at position D in

[0027] Figure 7 The schematic structural diagram when two chucks on the coil flaring machine move to clamp the stator.

[0028] Figure 8 is Figure 7 The sectional view of the coil flaring machine along line E-E in

[0029] Figure 9 is Figure 7 The partial enlarged view at position F in

[0030] Figure 10 is Figure 7 The sectional view of the coil flaring machine along line G-G in

[0031] Figure 11 is Figure 10 The schematic structure when the rack moves out of engagement with the first gear in

[0032] Figure 12 is Figure 11 The schematic structural diagram when the reaming end moves to ream the copper wire winding of the stator in

[0033] Figure 13 The schematic structural diagram when the rubber wheel moves to contact and rotate with the friction rail after the stator reaming is completed.

[0034] Reference numerals: 1, body; 11, moving seat; 12, reaming end; 13, placing table; 14, oil cylinder; 2, fixture; 21, chuck; 3, connecting rod; 31, first rod body; 32, second rod body; 41, first one-way bearing; 42, rubber wheel; 43, friction rail; 5, first control mechanism; 51, first rotating rod; 52, second rotating rod; 53, first sprocket; 54, second sprocket; 55, chain; 56, pushing and pulling block; 561, mating groove; 57, first driving part; 571, first gear; 572, rack; 6, sliding seat; 61, sliding groove; 62, mounting rod; 63, mounting groove; 64, avoiding hole; 7, second control mechanism; 71, placing groove; 72, spring; 73, connecting block; 74, second driving part; 741, abutting block; 742, inclined surface; 8, stator. Detailed implementation manners

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that the technical solution of the present application can be more easily understood and mastered.

[0036] Referring to Figure 1 , a production process and equipment for a stator assembly according to this embodiment. The production process of the stator includes: Step 1: Wind the copper wire onto the wire embedding machine; wind 12 turns for a single wire, and 12 wires per slot; Step 2: Place the stator 8 on the wire embedding machine, and use the wire embedding machine to embed the wound copper wire onto the stator 8 to form a copper wire winding, thereby completing the preliminary production of the stator 8; after wire embedding, the appearance of the slot wedge is pushed in place, without missing insertion, curling, not in place, or protruding from the inner circle, the iron core has no warped chips, and the winding has no damaged wires or broken wires; Step 3: Place the stator 8 on the stator 8 coil flaring machine, and use the stator 8 coil flaring machine to perform flaring and shaping on the inner diameter of the copper wire winding, so that the inner diameter of the ports at both ends of the stator 8 copper wire winding meets the requirements, and the required inner diameter size is 101 mm; then use the stator 8 coil shaping machine to press and shape the copper wire winding, so that the outer diameter sizes at both ends of the copper wire winding and the height of both ends of the copper wire winding meet the requirements, where the required outer diameter size is 119 mm, the height of the non-outlet end part of the copper wire winding is not greater than 19 mm, and the height of the outlet end part of the copper wire winding is not greater than 18 mm. Then cut the too long lead wire on the copper wire winding, and control the lead wire length to be 68 - 73 mm; then adjust the angle of the lead wire on the copper wire winding; Step 4: Perform paint stripping treatment on the lead wire, and control the non-painted length of the lead wire to the stop; the non-painted length of the lead wire to the stop is 52 - 55 mm; Step 5: Perform a withstand voltage test on the stator 8; test time: 2 seconds for each of the AB / AC / BC three-phase windings to the ground test; test voltage: AC / 1000V ± 50V; Step 6: Perform tinning treatment on the surface of the stator 8; temperature calibration: 330°C - 350°C; appearance after tinning: smooth, bright, without tin nodules; Step 7: Perform inter-turn inspection on the copper wire winding to ensure that there are no quality problems such as broken wires in the copper wire winding; Step 8: Perform dip painting treatment on the stator 8; dip painting temperature: pre-baking, gelling, curing 1 (135 ± 5°C), curing 2 (140 ± 5°C); dip painting revolution time: 18 - 23 seconds; dip painting amount: 45 - 50 grams; dip painting quality: the winding is completely cured, the dip impregnation is uniform, without leakage, and the slot wedge is not loose; dip painting appearance: there are no paint nodules on the inner and outer circles of the iron core and the surface of the stop, and the insulating paper is not yellowed Step 9: Quality inspection and packaging of the stator 8.

[0037] Referring to Figure 1 、 Figure 2 and Figure 3, in Step 3, the stator 8 coil flaring machine includes a machine body 1, a moving seat 11 installed on the top of the machine body 1 and sliding up and down along the Z-axis direction, an oil cylinder 14 fixed on the top of the machine body 1 for driving the sliding of the moving seat 11, and a reaming end 12 fixed on the bottom end of the moving seat 11. The rising and falling of the moving seat 11 and the reaming end 12 are controlled by the telescopic movement of the output shaft of the oil cylinder 14. On the tabletop of the machine body 1, two sliding seats 6 are formed. On the mutually approaching surfaces of the two sliding seats 6, sliding grooves 61 are provided. In both of the two sliding grooves 61, mounting rods 62 are slidably connected along the X-axis direction. The axes of the two mounting rods 62 are both parallel to the Y-axis. Both of the two mounting rods 62 are provided with mounting grooves 63 along the Y-axis direction, and the two mounting grooves 63 respectively penetrate through the two mounting rods 62. The machine body 1 is also provided with a placement table 13 for placing the stator 8.

[0038] Refer to Figure 2 and Figure 3 , between the two mounting rods 62, a fixture 2 for clamping the stator 8 is provided. The fixture 2 includes two clamping heads 21. Connecting rods 3 are respectively provided on the two clamping heads 21, and the two clamping heads 21 are located between the two connecting rods 3. Wherein the connecting rod 3 includes a first rod body 31 and a second rod body 32. The first rod body 31 is rotatably connected to the second rod body 32. The clamping head 21 is connected to the first rod body 31, and the rotation axis of the first rod body 31 is parallel to the Y-axis. The second rod body 32 is slidably connected in the mounting groove 63 along the Y-axis direction. The first rod body 31 is a round rod, and the second rod body 32 is a square rod.

[0039] Refer to Figure 2 , Figure 4 , wherein two groups of first control mechanisms 5 are provided on the machine body 1. Each group of first control mechanisms 5 is used to control the reciprocating movement of one second rod body 32. The two groups of first control mechanisms 5 are respectively located below the two first rod bodies 31. The first control mechanism 5 includes a first rotating rod 51 and a second rotating rod 52 rotatably connected to the machine body 1, a first sprocket 53 sleeved on the first rotating rod 51, a second sprocket 54 sleeved on the second rotating rod 52, a chain 55 sleeved on the first sprocket 53 and the second sprocket 54, and a push-pull block 56 fixed on the chain 55. The axes of the first rotating rod 51 and the second rotating rod 52 are both parallel to the Y-axis, and the first rotating rod 51 is located below the moving seat 11. Matching grooves 561 are provided on both of the two push-pull blocks 56. The two second rod bodies 32 are always located in the matching grooves 561. During the movement of the push-pull block 56, it abuts against the connecting rod 3 to drive the connecting rod 3 to move.

[0040] Refer to Figure 2 , Figure 4 and Figure 5, the first control mechanism 5 further includes a first driving portion 57 for driving the first rotating rod 51 to rotate. The first driving portion 57 includes a first gear 571 sleeved on the first rotating rod 51 and a rack 572 fixed on the moving seat 11. The first gear 571 is located below the rack 572. During the downward movement of the reaming end 12, the rack 572 will move to engage with the first gear 571 and drive the first gear 571 to rotate and then move away from the first gear 571.

[0041] Refer to Figure 2 and Figure 6 , first one-way bearings 41 are sleeved on both of the two first rod bodies 31. When the outer ring of the first one-way bearing 41 rotates in the reverse direction, it drives the inner ring of the first one-way bearing 41 to rotate. Rubber wheels 42 are sleeved on the outer rings of the two first one-way bearings 41. There are two friction rails 43 on the machine body 1, and the two friction rails 43 are respectively located on the movement paths of the two rubber wheels 42. When the rubber wheel 42 moves close to the lower part of the reaming end 12, it contacts the friction rail 43 and rotates forward. When the rubber wheel 42 moves away from the lower part of the reaming end 12, it contacts the friction rail 43 and rotates in reverse.

[0042] Refer to Figure 2 and Figure 3 , two sets of second control mechanisms 7 are further provided on the machine body 1. One set of second control mechanisms 7 is used to control the sliding movement of one set of second rod bodies 32. The second control mechanism 7 includes a placement groove 71 opened on the side wall of the installation groove 63, a spring 72 disposed in the placement groove 71 and sleeved on the second rod body 32, and a connection block 73 disposed on the second rod body 32. The spring 72 is always in a compressed state, and the elastic force of the spring 72 acts on the connection block 73, and the spring 72 always drives the connection block 73 to move away from the placement groove 71.

[0043] Refer to Figure 2 , Figure 3 and Figure 6 , avoidance holes 64 are opened on the side walls of the two sliding grooves 61 that are far away from each other, and the avoidance holes 64 are close to the side of the sliding groove 61 far away from the first rod body 31. The second control mechanism 7 further includes a second driving portion 74, and the second driving portion 74 is used to drive the second rod body 32 to move into the installation groove 63. The second driving portion 74 includes a resisting block 741 fixed on the side wall of the fitting groove 561 and an inclined surface 742 opened on the second rod body 32.

[0044] Refer to Figure 2 , Figure 3 and Figure 6The stopper 741 is located on the side of the inclined surface 742 close to the first rotating rod 51, and the stopper 741 always fits the second inclined surface 742. When the machine body 1 is not started, the stopper 741 fits the inclined surface 742, the installation rod 62 fits the side wall of the sliding groove 61 away from the rotating rod, and the second rod body 32 does not contact the side wall of the matching groove 561 away from the first rotating rod 51. The stopper 741 presses the second rod body 32 so that the end of the second rod body 32 away from the clamp 21 extends into the avoidance hole 64; when the push-pull block 56 approaches the first rotating rod 51, the second rod body 32 fits the side wall of the sliding groove 61 with the avoidance hole 64; when the push-pull block 56 moves away from the first rod body 31, the stopper 741 presses the inclined surface 742 so that the second rod body 32 is moved into the installation groove 63.

[0045] The steps for completely expanding the inner hole of the copper wire winding on the stator 8 of the present application are as follows: Reference Figure 2 , Figure 4 , Figure 7 and Figure 10 First, place the stator 8 with completed wire embedding on the placement table 13. Then start the machine body 1. After the machine body 1 is started, the output shaft of the oil cylinder 14 extends to make the moving seat 11 and the reaming end 12 move downward. When the moving seat 11 moves downward, it will drive the two racks 572 to move downward. During the downward movement of the two racks 572, the two first gears 571 will be driven to rotate forward. The forward rotation of the two first gears 571 will drive the two first rotating rods 51 to rotate forward. The forward rotation of the two first rotating rods 51 will drive the two first sprocket wheels 53 to rotate forward. The forward rotation of the two first sprocket wheels 53 will drive the two chains 55 to transmit forward, so that the two push-pull blocks 56 move close to the two first rotating rods 51.

[0046] Reference Figure 2 , Figures 6 - 10 When the two push-pull blocks 56 move closer to the first rotating rod 51, the two abutment blocks 741 cancel the pressure on the two inclined surfaces 742, and the two springs 72 rebound and drive the two second rod bodies 32 to move closer to each other through the two connecting blocks 73 so that the two clamps 21 clamp the stator 8 on the placement table 13. At this time, the second rod body 32 is flush with the side wall of the sliding groove 61 with the avoidance hole 64.

[0047] Reference Figure 2 , Figures 6 - 10 Finally, when the two clamps 21 clamp the stator 8, the two matching grooves 561 away from the corresponding first rotating rod 51 will conflict with the second rod body 32, and the stopper 741 will also conflict with the inclined surface 742. Then the two push-pull blocks 56 will pull the two second rod bodies 32, the two first rod bodies 31, the two mounting rods 62, the two clamps 21, and the stator 8 to move closer to the first rotating rod 51. In this process, the two rubber wheels 42 will contact the two friction rails 43 and rotate forward, and the two rubber wheels 42 will not affect the two first rod bodies 31 during the forward rotation.

[0048] Reference Figure 11 and Figure 12 When the two racks 572 move away from the two first gears 571, the stator 8 moves to the bottom of the reaming end 12, and the reaming end 12 is still a distance away from the stator 8. The reaming end 12 will subsequently move into the top port of the copper wire winding and expand the copper wire winding. After the reaming end 12 is expanded, the moving seat 11 moves up with the reaming end 12 and the two racks 572. After the reaming end 12 moves away from the stator 8 for a certain distance, the two racks 572 move to mesh with the two first gears 571 and drive the two first gears 571 to reverse. The reverse rotation of the two first gears 571 will drive the two first rotating rods 51 to reverse, and the reverse rotation of the two first rotating rods 51 will drive the two first sprocket wheels 53 to reverse, and the reverse rotation of the two first sprocket wheels 53 will cause the chain 55 to reversely drive and move the two push-pull blocks 56 away from the first rotating rod 51.

[0049] Reference Figure 13 During the movement and reset of the two push-pull blocks 56, the push-pull blocks 56 push the two second rods 32, the two first rods 31, the two mounting rods 62, the two clamps 21, and the stator 8 to move and reset together. During the movement and reset of the two first rods 31, the two rubber wheels 42 contact the friction rails 43 and reverse. The reverse rotation of the two rubber wheels 42 drives the inner rings of the two first one-way bearings 41, the two first rods 31, the two clamps 21, and the stator 8 to reverse together, and finally the stator 8 is turned 180 degrees, so that the end of the copper wire winding on the stator 8 without the expanded hole faces upward, in preparation for the expansion hole.

[0050] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 , when the two mounting rods 62 move to the side wall of the two sliding grooves 61 away from the first rod body 31, the two second rod bodies 32 will not continue to move in the X-axis direction. At this time, the two avoidance holes 64 are connected to the mounting grooves 63, and the stator 8 moves to the placement table 13. Although the two second rod bodies 32 will not move, the two push-pull blocks 56 will still move a distance. The two push-pull blocks 56 will continue to move and drive the two second rod bodies 32 to move away from each other and move into the two avoidance holes 64 respectively through the cooperation of the two abutment blocks 741 and the two inclined surfaces 742. When the two second rod bodies 32 move away from each other, the two clamps 21 will release the stator 8 and cancel the clamping of the stator 8. The stator 8 will be placed on the placement table 13.

[0051] Reference Figure 2 , Figure 7 , Figure 7 , Figures 10 - 12, and then the machine body 1 restarts again to repeat the above steps to perform reaming operations on the inner holes of the copper wire windings on the stator 8 that have not been reamed by the reaming head 12. After the inner holes at both ends of the stator 8 are reamed, the reamed stator 8 on the placement table 13 can be removed, and a new stator 8 waiting to be reamed can be placed on the placement table 13.

[0052] Of course, the above are only typical examples of this application. In addition, this application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by this application.

Claims

1. A stator assembly production process and equipment, characterized in that: Step 1: Wind the copper wire onto the wire inserting machine; Step 2: placing the stator (8) on a wire embedding machine, and using the wire embedding machine to embed the wound copper wire on the stator (8) to form a copper wire winding, thereby completing the initial production of the stator (8); Step 3: placing the stator (8) on a stator coil expanding machine, and using the stator coil expanding machine to expand and shape the inner diameter of the copper wire winding of the stator (8), so that the inner diameters of the ports at the upper and lower ends of the copper wire winding of the stator (8) meet the requirements; then using a stator coil shaping machine to press and shape the copper wire winding of the stator (8), so that the outer diameters of the upper and lower ends of the copper wire winding of the stator (8) and the heights of the two ends of the copper wire winding meet the requirements; then cutting the excessively long lead wires on the copper wire winding of the stator (8); then adjusting the angles of the lead wires on the stator (8); Step 4: Strip the lead wires on the stator (8) to control the length of the lead wires from the lead wires to the stop without stripping the paint; Step 5: Perform a withstand voltage test on the stator (8); Step 6: Tinning the surface of the stator (8); Step 7: Check the copper wire windings on the stator (8) turn by turn to ensure that the copper wire windings have no quality problems such as broken wires; Step 8: Apply paint to the stator (8); Step 9: Stator (8) quality inspection and packaging.

2. A stator assembly production process and equipment according to claim 1, characterized in that: The stator coil expanding machine in step 3 comprises a machine body (1), a movable seat (11) disposed on the machine body (1) and sliding upward along the Z-axis direction, a cylinder (14) disposed on the machine body (1) for driving the movable seat (11) to slide, and an expansion end head (12) disposed on the movable seat (11); a clamp (2) for clamping the stator (8) is connected to the machine body (1) and slides and rotates along the X-axis direction, and the end of the movement path of the clamp (2) is located directly below the expansion end head (12); connecting rods (3) are respectively disposed on both sides of the clamp (2); two groups of first control mechanisms (5) are disposed on the machine body (1), and each group of first control mechanisms (5) is used to control one connecting rod (3). reciprocating motion; the two connecting rods (3) are both sleeved with a first one-way bearing (41); when the outer ring of the first one-way bearing (41) is reversed, the inner ring of the first one-way bearing (41) is driven to rotate; the outer ring of the first one-way bearing (41) is sleeved with a rubber wheel (42); two friction rails (43) are provided on the machine body (1); the two friction rails (43) are respectively located on the movement paths of the two rubber wheels (42); when the rubber wheel (42) moves closer to the bottom of the reaming end (12), it contacts the friction rail (43) and rotates forward; when the rubber wheel (42) moves away from the bottom of the reaming end (12), it contacts the friction rail (43) and rotates reversely.

3. A stator assembly production process and equipment according to claim 2, characterized in that: The first control mechanism (5) comprises a first rotating rod (51) and a second rotating rod (52) rotatably connected to the machine body (1), a first sprocket (53) sleeved on the first rotating rod (51), a second sprocket (54) sleeved on the second rotating rod (52), a chain (55) sleeved on the first sprocket (53) and the second sprocket (54), a push-pull block (56) provided on the chain (55), and a first driving part (57) for driving the first rotating rod (51) to rotate, wherein the first control mechanism (5) comprises a first rotating rod (51) and a second rotating rod (52) rotatably connected to the machine body (1), a first sprocket (53) sleeved on the first rotating rod (51), a second sprocket (54) sleeved on the second rotating rod (52), a chain (55) sleeved on the first sprocket (53) and the second sprocket (54), a push-pull block (56) provided on the chain (55), and a first driving part (57) for driving the first rotating rod (51) to rotate. The axes of the first rotating rod (51) and the second rotating rod (52) are both parallel to the Y axis, and the first rotating rod (51) is located below the movable seat (11); a matching groove (561) is provided on the push-pull block (56), and the connecting rod (3) is located in the matching groove (561); during the movement of the push-pull block (56), it contacts the connecting rod (3) to drive the connecting rod (3) to move; when the machine body (1) is not started, the push-pull block (56) is located above the second sprocket (54).

4. A stator assembly production process and equipment according to claim 3, characterized in that: The first driving part (57) comprises a first gear (571) sleeved on the first rotating rod (51) and a rack (572) arranged on the movable seat (11); the first gear (571) is located below the rack (572); the first rack (572) is meshed with the gear; when the reaming end (12) descends, the rack (572) will move to be disengaged from the first gear (571).

5. The stator assembly production process and equipment according to claim 3, characterized in that: The machine body (1) is provided with two sliding seats (6), the two connecting rods (3) are located between the two sliding seats (6), a sliding groove (61) is provided on a surface of the two sliding seats (6) close to each other, and a mounting rod (62) is slidably connected in the two sliding grooves (61) along the X-axis direction; the connecting rod (3) comprises a first rod body (31) and a second rod body (32), the first rod body (31) is rotatably connected to the second rod body (32), and the clamp (2) comprises two clamps (21), the two The chuck (21) is respectively arranged on the two first rod bodies (31), and the two first one-way bearings (41) are respectively arranged and sleeved on the two first rod bodies (31); the two second rod bodies (32) are respectively connected to the two mounting rods (62) in a sliding manner along the Y-axis direction, and the two second rod bodies (32) are respectively located in two matching grooves (561); the body (1) is also provided with two groups of second control mechanisms (7), and one group of the second control mechanisms (7) is used to control the sliding movement of a second rod body (32).

6. A stator assembly production process and equipment according to claim 5, characterized in that: The end surfaces of the two mounting rods (62) close to each other are each provided with a mounting groove (63), the mounting groove (63) penetrates the mounting rod (62), and the two second rod bodies (32) are respectively slidably connected in the two mounting grooves (63). The second control mechanism (7) comprises a placement groove (71) provided on the side wall of the mounting groove (63), a spring (72) provided in the placement groove (71) and sleeved on the second rod body (32), a connecting block (73) provided on the second rod body (32), and a second driving part (74), wherein the spring (72) is always in a compressed state, and the elastic force of the spring (72) acts on the connecting block (73), and the spring (72) always drives the connecting block (73) to move away from the placement groove (71); the second driving part (74) is used to drive the second rod body (32) to move into the mounting groove (63).

7. A stator assembly production process and equipment according to claim 6, characterized in that: An avoidance hole (64) is provided on the side walls of the two sliding grooves (61) that are away from each other, and the avoidance hole (64) is close to the side of the sliding groove (61) away from the first rod body (31); the second driving part (74) includes a stopper (741) arranged in the matching groove (561) and an inclined surface (742) provided on the second rod body (32), and the stopper (741) is located on the side of the inclined surface (742) close to the first rotating rod (51), and the stopper (741) is always in contact with the second inclined surface (742); when the machine body (1) is not started, the stopper (741) is in contact with the inclined surface (742), and the mounting rod (62) is in contact with the sliding groove (61). The side wall away from the rotating rod is in contact with the second rod body (32) and the matching groove (561) away from the side wall of the first rotating rod (51), and the stop block (741) presses the second rod body (32) so that the end of the second rod body (32) away from the clamp (21) extends into the avoidance hole (64); when the push-pull block (56) approaches the first rotating rod (51), the second rod body (32) and the side wall of the sliding groove (61) with the avoidance hole (64) are in contact with each other; when the push-pull block (56) moves away from the first rod body (31), the stop block (741) presses the inclined surface (742) so that the second rod body (32) is subjected to the force of moving into the installation groove (63).

8. A stator assembly production process and equipment according to claim 7, characterized in that: The machine body (1) is provided with a placement platform (13) for placing the stator (8), and the placement platform (13) is located between the two sliding seats (6).

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