Special production equipment and production process for special-shaped commutators

Abstract

A special production equipment for special-shaped commutators, comprising a workbench, a guide plate, a positioning ring for positioning a commutator segment group, a tight ring bushing for fixing the commutator segment group, a product fork for batch clamping the tight ring bushing, and a driving cylinder. The workbench is arranged in a semi-enclosed shape, an injection molding station is provided in the middle of the workbench, an inspection table, a mold sending station, and a preheating station are provided in sequence on the left side of the workbench, and a cake heating device and a burr treatment station are provided on the right side of the workbench; the commutator segment group is sequentially inspected by the inspection table for reinforcement rings, sent to the tight ring bushing through the guide plate and the mold sending station, preheated at the preheating station, injection molded at the injection molding station, ejected from the tight ring bushing by the mold sending station, and the commutator product is obtained after burr treatment; the present invention has the advantages of simple structure, reasonable design, small layout space, low work intensity, high work efficiency, low production cost, and convenient commutator production.

Description

Technical Field

[0001] The present invention relates to a commutator, in particular to special production equipment for special-shaped commutators and a production process thereof. Background Art

[0002] Commutators are widely used in power tools and automotive motors. During production, upper and lower reinforcement rings are usually used to reinforce the commutator segments, and spring bushings are set inside the commutator's bakelite powder body to improve the commutator's mechanical strength and overspeed performance. In addition, there is a very important process in the commutator manufacturing process called the commutator injection molding process. The commutator injection molding process is to complete the combination of commutator segments, spring bushings and bakelite powder by injection molding bakelite powder. There are many related auxiliary processes before and after the commutator injection molding process, and these processes consume a lot of man-hours. The operation is complicated and loose, the production efficiency is low, and the labor intensity of workers is high. Moreover, for special-shaped commutators, since the structure of the commutator segments of special-shaped commutators is different from that of ordinary commutator segments, before production, the commutator segment body needs to be fixed to the plastic core with rubber bands and reinforcement rings are placed at both ends of the commutator segment body, and then the subsequent injection molding process is carried out. Therefore, special production equipment and production processes are required for production. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art. The present invention provides a special production equipment and production process for special-shaped commutators with simple structure, reasonable design, small layout space, low work intensity, high work efficiency, low production cost and convenient commutator production.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a special production equipment for special-shaped commutators, including a workbench, a guide plate, a positioning ring for positioning the commutator segment group, a tight ring bushing for fixing the commutator segment group, a product fork for batch clamping the tight ring bushing, and a driving cylinder. The workbench is arranged in a semi-enclosed shape, and an injection molding station is provided in the middle of the workbench. The left side of the workbench is successively provided with an inspection table, a mold delivery station, and a preheating station. The right side of the workbench is provided with a material cake heating device and a burr processing station.

[0005] Preferably, the injection molding station includes a lower template and an upper template, slides are provided on both sides of the lower template, a plurality of support columns are provided between the slides on both sides of the lower template, a lower mold push plate is sleeved between the plurality of support columns, a plurality of lower mold push rods are fixed on the lower mold push plate, a lower mold pad is fixed on the top of the support columns, the upper end of the lower mold push rod passes through the lower mold pad and the lower mold push rod is sleeved with a push rod spring between the lower mold push plate and the lower mold pad, an injection slide is provided on the inner side of the top of the slide, the injection slide extends to the outside of the upper template, a lower mold movable middle template is provided between the two injection slides, and a plurality of lower mold movable middle templates are evenly provided on the lower mold movable middle template A shot injection hole for placing a tightening ring bushing, a lower press head is provided in the shot injection hole, and the tail end of the lower press head abuts against the top end of the lower mold push rod; a number of middle plate guide columns are provided on both sides of the upper mold, and a middle slide is provided between the upper mold and the lower mold. A number of material block bushings matching the shot injection holes on the lower movable middle mold are embedded on the middle slide; a press head fixing plate is provided on the lower surface of the upper mold, and a number of upper press heads matching the material block bushings on the middle slide are provided on the press head fixing plate, and the upper press heads can pass through the material block bushings and extend to the shot injection holes on the lower movable middle mold; a driving cylinder is connected to both the upper mold and the lower mold push plate.

[0006] Preferably, the lower template is provided with side pads on the inner sides of the slides on both sides, and the lower side of the lower movable middle template is provided with a pulley positioning plate, a lower heat insulation plate, and a lower movable fixed plate in sequence. The lower movable middle template is slidingly connected to the injection slide through the lower movable fixed plate, and the tail end of the lower pressure head passes through the lower heat insulation plate, the pulley positioning plate, the lower movable fixed plate and abuts against the top end of the lower mold push rod.

[0007] Preferably, the middle slide is connected to the upper template via a slide pull rod, and the slide pull rod is provided with a first spring between the middle slide and the upper template, and a plurality of fixed hooks are provided on both sides of the middle slide, and the fixed hooks are rotatably connected to the middle slide through hook guide columns, and a hook portion is provided on the lower side of the fixed hook, and fixed protrusions matching the hook portion of the fixed hook are provided on both sides of the lower movable middle template, and an abutting portion abutting against the first spring is provided on the outer side of the fixed hook, and a pull rod push block abutting against the lower surface of the abutting portion relative to the fixed hook is provided on the lower surface of the middle slide, and a plurality of middle mold guide columns are provided on the pulley positioning plate, and the middle mold guide columns pass through the lower movable middle template and extend into the middle slide, and a plurality of buffer gaskets are provided on the upper and lower surfaces of the middle slide.

[0008] Preferably, an upper mold pad, an upper insulation plate, and an upper heating plate are sequentially provided between the upper mold plate and the pressure head fixing plate; a heating tube is provided on the upper heating plate, and the heating tube passes through the pressure head fixing plate and extends into the upper pressure head; a spring column is provided on the upper heating plate, and the lower end of the spring column passes through the upper heating plate and the pressure head fixing plate and extends to the lower side of the pressure head fixing plate; a second spring is provided between the upper end of the spring column and the upper mold plate.

[0009] Preferably, the inspection table is provided with a metal sensor for detecting whether reinforcement rings are installed at both ends of the commutator segment, and the inspection table is also provided with a recovery groove; the mold sending station includes a mold sending frame, a mold sending seat is provided in the mold sending frame, and a plurality of mold sending grooves for placing tight ring bushings are provided on the mold sending seat. The mold sending seat and the inspection table are connected by a transition slide, a transition tray is provided on the transition slide, and a plurality of transition slot holes for placing tight ring bushings are provided on the transition tray. The guide plate is placed on the transition tray, and the outer ring of the lower surface of the guide plate is provided with a device for clamping the guide plate onto the transition tray. The clamping strip is provided on the guide plate, and a plurality of guide holes are respectively matched with the transition slot holes on the transition tray; the mold sending frame is provided with a mold sending pressure plate on the upper side of the mold sending base, and the mold sending pressure plate is connected to the driving cylinder, and a mold sending push rod is provided on the lower surface of the mold sending pressure plate, and a waste rejection ejector is provided on the lower end surface of the mold sending push rod, and the mold sending frame is provided with a material receiving trough on the lower side of the mold sending base; the preheating station includes a heating frame, a heating seat is provided on the heating frame, and a plurality of heating slots for placing a tightening ring bushing are provided on the heating frame, and a heater connected to the driving cylinder is provided on the upper side of the heating seat.

[0010] Preferably, the positioning ring includes a positioning ring body for tightening the commutator segment, the ends of the two ends of the positioning ring body are staggered and each end is provided with an opening handle for opening the positioning ring body, and the positioning ring body and the opening handle are formed by integrally bending steel wire; the tightening ring bushing includes a bushing body, a fixing hole for fixing the commutator segment group is provided in the bushing body, a clamping ring matching the product fork is provided on the outer wall of the tightening ring bushing, and a placement limit step for placing the tightening ring bushing is also provided on the outer wall of the tightening ring bushing; the product fork includes a product fork body, handles are provided on both sides of the product fork body, and a plurality of clamping grooves for clamping the tightening ring bushing are provided on the product fork body, the width of the clamping groove matches the outer diameter of the tightening ring bushing, and the product fork body adopts a wedge-shaped structure at the front end of the clamping groove.

[0011] Preferably, the burr processing station includes a burr rubbing board, which is tilted on the workbench, and the workbench is provided with waste discharge grooves on both the front and rear sides of the burr rubbing board.

[0012] Preferably, the workbench is provided with a placement rack for placing the commutator segment group and the commutator finished product on the outside of the inspection table and the burr processing station.

[0013] A production process for a special-shaped commutator comprises the following steps:

[0014] S1. Use the metal sensor on the inspection table to detect whether the commutator segment group is installed with the reinforcement ring, then fix the commutator segment group with the positioning ring and remove the rubber band on the outside of the commutator segment group;

[0015] S2. Place the tight ring bushing in the transition slot of the transition tray, place a guide plate on the transition tray, and then place the commutator segment assembly fixed by the positioning ring into the guide hole of the guide plate;

[0016] S3, push the transition tray onto the die-feeding seat through the transition slide, and the driving cylinder drives the die-feeding pressing plate to press the commutator plate group in the guide hole into the tight ring bushing;

[0017] S4. Remove the transition tray from the die-feeding base and uniformly recycle the positioning rings, then remove the plastic core in the commutator segment assembly;

[0018] S5. Use the product fork to place the tight ring bushing on the transition tray that has been pressed into the commutator segment group on the preheating station to preheat the commutator segment group, and place the cake in the cake heating device for heating;

[0019] S6. Place the preheated commutator segment assembly and the tightening ring bushing into the injection hole of the lower movable middle template of the injection molding station, then push the lower movable middle template into the injection molding station, and then start the driving cylinder to drive the middle slide downward until the middle slide abuts against the lower movable middle template;

[0020] S7, taking out the cake from the cake heating device and placing it into the block bushing of the middle slide, then starting the driving cylinder again to close the mold and injection mold the commutator;

[0021] S8. Use the lower punch to eject the commutator product and the tight ring bushing from the injection hole of the lower movable middle template, and fix the tight ring bushing with the product fork to prevent it from falling back into the injection hole. Then, the lower punch is driven back by the driving cylinder, and finally the lower movable middle template is removed from the injection station.

[0022] S9. The commutator product and the tight ring bushing on the lower movable middle platen are moved to the die delivery groove of the die delivery base by the product fork, and the die delivery pressing plate is driven by the driving cylinder to eject the commutator product in the tight ring bushing into the receiving groove. At the same time, the waste on the commutator product is ejected by the waste ejector pin.

[0023] S10, deburring the commutator finished product by using a burr rubbing plate of a burr processing station, thereby obtaining a final product.

[0024] When the present invention is used: 1. The metal sensor on the inspection table is used to detect whether the commutator segment group is installed with the reinforcement ring, and then the commutator segment group is fixed by the positioning ring, and the rubber band sleeved on the outside of the commutator segment group is removed; 2. The tight ring bushing is placed in the transition slot of the transition tray, and the guide plate is placed on the transition tray, and then the commutator segment group fixed by the positioning ring is placed in the guide hole of the guide plate; 3. The transition tray is pushed into the die feeding seat through the transition slide, and the die feeding pressing plate is driven by the driving cylinder to press the commutator segment group in the guide hole. 4. Remove the transition tray from the mold delivery base and recycle the positioning ring uniformly, then take out the plastic core in the commutator segment group; 5. Use the product fork to place the tight ring bushing that has been pressed into the commutator segment group on the transition tray on the preheating station to preheat the commutator segment group, and place the cake in the cake heating device for heating; 6. Place the preheated commutator segment group and tight ring bushing into the injection hole of the lower movable middle template of the injection molding station, then push the lower movable middle template into the injection molding station, and then start the drive cylinder to drive the middle template. The intermediate slide moves down until the intermediate slide contacts the lower movable middle template; 7. Take out the cake from the cake heating device and place it in the block bushing of the intermediate slide, then start the drive cylinder again to close the mold and injection mold the commutator; 8. Use the lower pressure head to eject the commutator product and the tight ring bushing from the injection hole of the lower movable middle template, and fix the tight ring bushing with the product fork to prevent the tight ring bushing from falling back into the injection hole, then drive the lower pressure head back by the drive cylinder, and finally move the lower movable middle template out of the injection station; 9. The finished commutator and the tight ring bushing on the lower movable middle template are moved to the die feeding groove of the die feeding seat by the product fork, and the die feeding pressure plate is driven by the driving cylinder to eject the finished commutator in the tight ring bushing into the receiving groove, and the waste on the finished commutator is removed by the waste ejector pin; 10. The burr of the finished commutator is processed by the burr rubbing plate of the burr processing station to obtain the final product; the present invention has the advantages of simple structure, reasonable design, small layout space, low work intensity, high work efficiency, low production cost, and convenient commutator production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the injection molding station of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the mold delivery station of the present invention;

[0028] Figure 4It is a structural schematic diagram of the commutator segment group to be processed according to the present invention;

[0029] Figure 5 It is a structural schematic diagram of the guide plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the positioning ring of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the tight ring bushing of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the product fork of the present invention.

[0033] In the figure: 1. Workbench; 11. Driving cylinder; 12. Inspection table; 121. Metal sensor; 122. Recovery tank; 13. Cake heating device; 14. Deburring station; 141. Deburring plate; 142. Waste discharge tank; 15. Placement rack; 2. Guide plate; 21. Snap-fit ​​strip; 22. Guide hole; 3. Positioning ring; 31. Positioning ring body; 32. Opening handle; 4. Tightening ring; 41. Bushing body; 42. Fixing hole; 43. Clamping ring; 44. Placement step; 5. Product Fork; 51. Product fork body; 52. Handle; 53. Clamping groove; 6. Injection molding station; 601. Lower mold plate; 602. Upper mold plate; 603. Slide seat; 604. Support column; 605. Lower mold push plate; 606. Lower mold push rod; 607. Lower mold backing plate; 608. Push rod spring; 609. Injection molding slide; 610. Lower mold movable middle mold plate; 611. Injection hole; 612. Lower ram; 613. Middle plate guide column; 614. Middle slide; 615. Block bushing; 616. Ram fixing plate; 617, upper pressure head; 618, side pad; 619, pulley positioning plate; 620, lower heat insulation plate; 621, lower movable fixed plate; 622, slide plate pull rod; 623, first spring; 624, fixed hook; 625, hook guide post; 626, hook portion; 627, fixed protrusion; 628, abutment portion; 629, pull rod push block; 630, middle mold guide post; 631, buffer gasket; 632, upper mold pad; 633, upper heat insulation plate; 634, upper heating plate; 635, heating tube; 636, upper mold plate; 637, upper mold plate; 638, upper mold plate; 639, upper mold plate; 640, upper mold plate; 641, upper mold plate; 642, upper mold plate; 643, upper mold plate; 644, upper mold plate; 645, upper mold plate; 646, upper mold plate; 647, upper mold plate; 648, upper mold plate; 649, upper mold plate; 650, upper mold plate; 651, upper mold plate; 652, upper mold plate; 653, upper mold plate; 654, upper mold plate; 655, upper mold plate; 656, upper mold plate; 657, upper mold plate; 658, upper mold plate; 659, upper mold plate; 660, upper mold plate; 661, upper mold plate; 662, upper mold plate; 663, upper mold plate; 664, upper mold plate; 665, upper mold plate; 666, upper mold plate; 667, upper mold plate; 668, upper mold plate; 669, upper mold plate; 670, upper mold plate; 671, upper mold plate; 672, upper mold plate; 67 6. Spring column; 637. Second spring; 7. Mold delivery station; 70. Mold delivery frame; 71. Mold delivery seat; 72. Mold delivery slot; 73. Transition slide; 74. Transition tray; 75. Transition slot; 76. Mold delivery plate; 77. Mold delivery push rod; 78. Ejector pin; 79. Material receiving trough; 8. Preheating station; 81. Heating frame; 82. Heating seat; 83. Heating slot; 84. Heater; 9. Commutator segment assembly; 91. Commutator segment body; 92. Rubber band; 93. Plastic core; 94. Reinforcement ring. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0035] Example:

[0036] like Figures 1 to 8 The special production equipment for special-shaped commutators shown in the figure includes a workbench 1, a guide plate 2, a positioning ring 3 for positioning the commutator segment group 9, a tight ring bushing 4 for fixing the commutator segment group 9, a product fork 5 for batch clamping the tight ring bushing 4, and a driving cylinder 11. The workbench 1 is arranged in a semi-enclosed shape, with an injection molding station 6 in the middle of the workbench 1, an inspection station 12, a mold delivery station 7, and a preheating station 8 on the left side of the workbench 1, and a right side of the workbench 1. One side is provided with a material cake heating device 13 and a burr processing station 14. The workbench 1 is provided with a placement rack 15 for placing the commutator segment group 9 and the commutator finished product on the outside of the inspection table 12 and the burr processing station 14; the commutator segment group 9 to be processed includes a commutator segment body 91, a rubber band 92, a plastic core 93, and a reinforcement ring 94. The commutator segment body 91 is fixed to the side wall of the plastic core 93 by the rubber band 92, and the reinforcement ring 94 is arranged at both ends of the commutator segment body 91.

[0037] The injection molding station 6 includes a lower template 601 and an upper template 602. Slides 603 are provided on both sides of the lower template 601. The lower template 601 is provided with a plurality of support columns 604 between the slides 603 on both sides. A lower mold push plate 605 is sleeved between the plurality of support columns 604. A plurality of lower mold push rods 606 are fixed on the lower mold push plate 605. A lower mold pad 607 is fixed on the top of the support column 604. The upper end of the lower mold push rod 606 passes through the lower mold pad 607 and the lower mold push rod 606 is sleeved with a push rod spring 608 between the lower mold push plate 605 and the lower mold pad 607. An injection slide 609 is provided on the inner side of the top of the slide 603. The injection slide 609 extends to the outside of the upper template 602. A lower mold movable middle template 610 is provided between the injection slides 609, and a plurality of injection holes 611 for placing the tight ring bushing 4 are evenly provided on the lower mold movable middle template 610, and a lower pressure head 612 is provided in the injection hole 611, and the tail end of the lower pressure head 612 abuts against the top of the lower mold push rod 606, and the lower template 601 is provided with side pads 618 on the inner sides of the slides 603 on both sides. A pulley positioning plate 619, a lower heat insulation plate 620, and a lower mold movable fixed plate 621 are provided on the lower side of the lower mold movable middle template 610 in sequence. The lower mold movable middle template 610 is slidably connected to the injection slide 609 through the lower mold movable fixed plate 621, and the tail end of the lower pressure head 612 passes through the lower heat insulation plate 620, the pulley positioning plate 619, the lower mold movable fixed plate 621, and the lower mold movable middle template 610 is slidably connected to the injection slide 609 through the lower mold movable fixed plate 621. The movable fixed plate 621 of the mold is in contact with the top of the lower mold push rod 606; a number of middle plate guide columns 613 are provided on both sides of the upper mold plate 602, and a middle slide 614 is provided between the upper mold plate 602 and the lower mold plate 601. The middle slide 614 is embedded with a number of material block bushings 615 that match the injection holes 611 on the movable middle mold plate 610 of the lower mold. The middle slide 614 is connected to the upper mold plate 602 through a slide pull rod 622. The slide pull rod 622 is provided with a first spring 623 between the middle slide 614 and the upper mold plate 602. A number of fixed hooks 624 are provided on both sides of the middle slide 614, and the fixed hooks 624 are connected to the middle slide 614 through the hook guide columns 625. The slide plate 614 is rotatably connected, and a hook portion 626 is provided on the lower side of the fixed hook 624. Fixed protrusions 627 matching the hook portion 626 of the fixed hook 624 are provided on both sides of the lower movable middle plate 610. An abutment portion 628 abutting against the first spring 623 is provided on the outer side of the fixed hook 624. A pull rod push block 629 abutting against the lower surface of the abutment portion 628 is provided on the lower surface of the intermediate slide plate 614 relative to the abutment portion 628 of the fixed hook 624. The pulley positioning plate 619 is provided with a plurality of middle mold guide pillars 630, which extend through the lower movable middle plate 610 to the middle slide plate 614. A plurality of buffer pads 631 are provided on the upper and lower surfaces of the intermediate slide plate 614.The lower surface of the upper mold plate 602 is provided with a pressure head fixing plate 616, and the pressure head fixing plate 616 is provided with a plurality of upper pressure heads 617 that match the material block bushing 615 on the middle slide plate 614. The upper pressure heads 617 can pass through the material block bushing 615 and extend into the injection hole 611 on the lower movable middle mold plate 610. An upper mold pad 632, an upper heat insulation plate 633, and an upper heating plate 634 are provided between the upper mold plate 602 and the pressure head fixing plate 616 in sequence. A heating tube 635 is provided on the upper die plate 602. The heating tube 635 extends through the die fixing plate 616 and into the upper die plate 617. A spring column 636 is provided on the upper heating plate 634. The lower end of the spring column 636 extends through the upper heating plate 634 and the die fixing plate 616 to the underside of the die fixing plate 616. A second spring 637 is provided between the upper end of the spring column 636 and the upper die plate 602. A driving cylinder 11 is connected to both the upper die plate 602 and the lower die push plate 605.

[0038] The inspection table 12 is provided with a metal sensor 121 for detecting whether the reinforcement rings 94 are installed at both ends of the commutator segment, and the inspection table 12 is also provided with a recovery groove 122; the mold sending station 7 includes a mold sending frame 70, and a mold sending seat 71 is provided in the mold sending frame 70. The mold sending seat 71 is provided with a plurality of mold sending grooves 72 for placing the tight ring bushing 4, and the mold sending seat 71 is connected to the inspection table 12 through a transition slide 73, and the transition slide 73 is provided with a transition tray 74, and the transition tray 74 is provided with a plurality of transition slot holes 75 for placing the tight ring bushing 4, and the guide plate 2 is placed on the transition tray 74, and the outer ring of the lower surface of the guide plate 2 is provided with a clamping strip 21 for clamping the guide plate 2 to the transition tray 74. , the guide plate 2 is provided with a plurality of guide holes 22 that match the transition slots 75 on the transition tray 74 respectively; the mold sending frame 70 is provided with a mold sending pressing plate 76 on the upper side of the mold sending seat 71, and the mold sending pressing plate 76 is connected to the driving cylinder 11, and the lower surface of the mold sending pressing plate 76 is provided with a mold sending push rod 77, and the lower end surface of the mold sending push rod 77 is provided with a waste ejector pin 78, and the mold sending frame 70 is provided with a material receiving trough 79 on the lower side of the mold sending seat 71; the preheating station 8 includes a heating frame 81, and the heating frame 81 is provided with a heating seat 82, and the heating seat 82 is provided with a plurality of heating slots 83 for placing the tight ring bushing 4, and the heating frame 81 is provided with a heater 84 connected to the driving cylinder 11 on the upper side of the heating seat 82.

[0039] The positioning ring 3 includes a positioning ring 3 body for tightening the commutator segment, the ends of the two ends of the positioning ring 3 body are staggered and are provided with a spreading handle 32 for spreading the positioning ring 3 body, the positioning ring 3 body and the spreading handle 32 are formed by bending steel wire in one piece; the tight ring bushing 4 includes a bushing body 41, a fixing hole 42 for fixing the commutator segment group 9 is provided in the bushing body 41, the outer wall of the tight ring bushing 4 is provided with a clamping ring 43 that matches the product fork 5, and the outer wall of the tight ring bushing 4 is also provided with a placement for placing the tight ring bushing 4 A limiting step 44; the product fork 5 includes a product fork 5 body, handles 52 are provided on both sides of the product fork 5 body, and a plurality of clamping grooves 53 for clamping the tight ring bushing 4 are provided on the product fork 5 body. The width of the clamping groove 53 matches the outer diameter of the tight ring bushing 4, and the product fork 5 body adopts a wedge-shaped structure at the front end of the clamping groove 53; the burr processing station 14 includes a burr rubbing plate 141, and the burr rubbing plate 141 is tilted on the workbench 1, and the workbench 1 is provided with waste discharge grooves 142 on both sides of the front and back of the burr rubbing plate 141.

[0040] A production process for a special-shaped commutator comprises the following steps:

[0041] S1. Use the metal sensor 121 on the inspection table 12 to detect whether the commutator segment group 9 is installed with the reinforcement ring 94. Then, fix the commutator segment group 9 with the positioning ring 3 and remove the rubber band 92 on the outside of the commutator segment group 9.

[0042] S2. Place the tight ring bushing 4 in the transition slot 75 of the transition tray 74, and place the guide plate 2 on the transition tray 74. Then, place the commutator segment assembly 9 fixed by the positioning ring 3 in the guide hole 22 of the guide plate 2.

[0043] S3, push the transition tray 74 onto the die-feeding base 71 through the transition slide 73, and drive the die-feeding pressing plate 76 by the driving cylinder 11 to press the commutator segment group 9 in the guide hole 22 into the tight ring bushing 4;

[0044] S4, remove the transition tray 74 from the die-feeding base 71 and uniformly recover the positioning ring 3, and then remove the plastic core 93 in the commutator segment assembly 9;

[0045] S5. Use the product fork 5 to place the tight ring bushing 4 that has been pressed into the commutator segment group 9 on the transition tray 74 on the preheating station 8 to preheat the commutator segment group 9, and place the cake in the cake heating device 13 for heating.

[0046] S6. Place the preheated commutator segment assembly 9 and the tightening ring bushing 4 into the injection hole 611 of the lower movable middle platen 610 of the injection molding station 6. Then push the lower movable middle platen 610 into the injection molding station 6. Then start the driving cylinder 11 to drive the middle slide 614 downward until the middle slide 614 abuts against the lower movable middle platen 610.

[0047] S7, take out the cake from the cake heating device 13 and place it in the block bushing 615 of the middle slide 614, then start the driving cylinder 11 again to close the mold and injection mold the commutator;

[0048] S8, the commutator product and the tight ring bushing 4 are ejected from the injection hole 611 of the lower movable middle plate 610 by the lower punch 612, and the tight ring bushing 4 is fixed by the product fork 5 to prevent the tight ring bushing 4 from falling back into the injection hole 611, and then the lower punch 612 is driven back by the driving cylinder 11, and finally the lower movable middle plate 610 is moved out of the injection molding station 6;

[0049] S9. The finished commutator and the tight ring bushing 4 on the lower movable middle platen 610 are moved into the die delivery groove 72 of the die delivery base 71 by the product fork 5. The die delivery pressing plate 76 is driven by the driving cylinder 11 to eject the finished commutator in the tight ring bushing 4 into the receiving groove 79. At the same time, the waste on the finished commutator is ejected by the waste ejector pin 78.

[0050] S10, the commutator finished product is deburred by the burr rubbing plate 141 of the burr processing station 14, thereby obtaining a final product.

[0051] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solution described in the claims.

Claims

1. A special production equipment for special-shaped commutators, characterized by: The invention comprises a workbench (1), a guide plate (2), a positioning ring (3) for positioning a commutator segment group (9), a tight ring bushing (4) for fixing the commutator segment group (9), a product fork (5) for batch clamping the tight ring bushing (4), and a driving cylinder (11). The workbench (1) is arranged in a semi-enclosed shape. An injection molding station (6) is provided in the middle of the workbench (1). An inspection table (12), a mold delivery station (7), and a preheating station (8) are provided on the left side of the workbench (1). A cake heating device (13) and a burr treatment station (14) are provided on the right side of the workbench (1). The injection molding station (6) comprises a lower mold plate (601), an upper mold plate (602), and a mold plate (603). ), slides (603) are provided on both sides of the lower template (601), and a plurality of support columns (604) are provided on the lower template (601) between the slides (603) on both sides, a lower mold push plate (605) is sleeved between the plurality of support columns (604), a plurality of lower mold push rods (606) are fixed on the lower mold push plate (605), a lower mold pad (607) is fixed on the top of the support columns (604), the upper end of the lower mold push rod (606) passes through the lower mold pad (607) and the lower mold push rod (606) is sleeved with a push rod spring (608) between the lower mold push plate (605) and the lower mold pad (607), the inner side of the top of the slide (603) Both are provided with an injection slide (609), the injection slide (609) extending to the outside of the upper mold plate (602), a lower mold movable middle mold plate (610) is provided between the two injection slides (609), a plurality of injection holes (611) for placing the tight ring bushing (4) are evenly provided on the lower mold movable middle mold plate (610), a lower pressure head (612) is provided in the injection hole (611), the tail end of the lower pressure head (612) is in contact with the top end of the lower mold push rod (606); a plurality of middle plate guide pillars (613) are provided on both sides of the upper mold plate (602), and a plurality of the middle plate guide pillars (613) are provided between the upper mold plate (602) and the lower mold plate (601). A middle slide plate (614) is provided, and a plurality of material block bushings (615) matching the injection holes (611) on the lower movable middle plate (610) are embedded on the middle slide plate (614); a pressure head fixing plate (616) is provided on the lower surface of the upper plate (602), and a plurality of upper pressure heads (617) matching the material block bushings (615) on the middle slide plate (614) are provided on the pressure head fixing plate (616), and the upper pressure heads (617) can pass through the material block bushings (615) and extend into the injection holes (611) on the lower movable middle plate (610); and a driving cylinder (11) is connected to both the upper plate (602) and the lower die push plate (605).

2. The special production equipment for special-shaped commutators according to claim 1, characterized in that: The lower mold plate (601) is provided with side pads (618) on the inner sides of the slides (603) on both sides, and the lower side of the lower mold movable middle mold plate (610) is provided with a pulley positioning plate (619), a lower heat insulation plate (620), and a lower mold movable fixed plate (621) in sequence. The lower mold movable middle mold plate (610) is slidably connected to the injection slide (609) through the lower mold movable fixed plate (621), and the tail end of the lower pressure head (612) passes through the lower heat insulation plate (620), the pulley positioning plate (619), and the lower mold movable fixed plate (621) to abut against the top end of the lower mold push rod (606).

3. The special production equipment for special-shaped commutators according to claim 2, characterized in that: The intermediate slide plate (614) is connected to the upper template (602) via a slide plate pull rod (622). The slide plate pull rod (622) is provided with a first spring (623) between the intermediate slide plate (614) and the upper template (602). A plurality of fixed hooks (624) are provided on both sides of the intermediate slide plate (614). The fixed hooks (624) are rotatably connected to the intermediate slide plate (614) via hook guides (625). A hook portion (626) is provided on the lower side of the fixed hook (624). The lower side of the movable middle template (610) is provided with hook portions (626) that match the hook portions (626) of the fixed hooks (624). The fixing hook (624) is provided with a fixing protrusion (627), the outer side of the fixing hook (624) is provided with an abutting portion (628) abutting against the first spring (623), the lower surface of the intermediate slide (614) is provided with a pull rod push block (629) abutting against the lower surface of the abutting portion (628) relative to the fixing hook (624), the pulley positioning plate (619) is provided with a plurality of middle mold guide columns (630), the middle mold guide columns (630) pass through the lower movable middle mold plate (610) and extend into the middle slide (614), and the upper and lower surfaces of the middle slide (614) are provided with a plurality of buffer gaskets (631).

4. The special production equipment for special-shaped commutators according to claim 1, characterized in that: An upper die pad (632), an upper heat insulation plate (633), and an upper heating plate (634) are sequentially provided between the upper die plate (602) and the pressure head fixing plate (616); a heating tube (635) is provided on the upper heating plate (634); the heating tube (635) passes through the pressure head fixing plate (616) and extends into the upper pressure head (617); a spring column (636) is provided on the upper heating plate (634); the lower end of the spring column (636) passes through the upper heating plate (634) and the pressure head fixing plate (616) and extends to the lower side of the pressure head fixing plate (616); a second spring (637) is provided between the upper end of the spring column (636) and the upper die plate (602).

5. The special production equipment for special-shaped commutators according to claim 1, characterized in that: The inspection table (12) is provided with a metal sensor (121) for detecting whether a reinforcement ring (94) is installed at both ends of the commutator segment, and the inspection table (12) is also provided with a recovery groove (122); the mold delivery station (7) includes a mold delivery frame (70), a mold delivery seat (71) is provided in the mold delivery frame (70), and a plurality of mold delivery grooves (72) for placing a tight ring bushing (4) are provided on the mold delivery seat (71), and the mold delivery seat (71) and the inspection table (12) are connected through a transition slide (73), and a transition tray (74) is provided on the transition slide (73), and a plurality of transition slot holes (75) for placing a tight ring bushing (4) are provided on the transition tray (74), and the guide plate (2) is placed on the transition tray (74), and the outer ring of the lower surface of the guide plate (2) is provided with a clamping strip (21) for clamping the guide plate (2) to the transition tray (74). The guide plate (2) is provided with a plurality of guide holes (22) respectively matching the transition slot holes (75) on the transition tray (74); the die-feeding frame (70) is provided with a die-feeding pressing plate (76) on the upper side of the die-feeding seat (71), the die-feeding pressing plate (76) is connected to the driving cylinder (11), the lower surface of the die-feeding pressing plate (76) is provided with a die-feeding push rod (77), the lower end surface of the die-feeding push rod (77) is provided with a waste ejector pin (78), and the die-feeding frame (70) is provided with a material receiving trough (79) on the lower side of the die-feeding seat (71); the preheating station (8) includes a heating frame (81), the heating frame (81) is provided with a heating seat (82), the heating seat (82) is provided with a plurality of heating slot holes (83) for placing the tight ring bushing (4), and the heating frame (81) is provided with a heater (84) connected to the driving cylinder (11) on the upper side of the heating seat (82).

6. The special production equipment for special-shaped commutators according to claim 1, characterized in that: The positioning ring (3) includes a positioning ring (3) body for tightening the commutator segments, the ends of the positioning ring (3) body are staggered and both ends are provided with a spreading handle (32) for spreading the positioning ring (3) body, the positioning ring (3) body and the spreading handle (32) are formed by bending steel wire in one piece; the tightening ring bushing (4) includes a bushing body (41), the bushing body (41) is provided with a fixing hole (42) for fixing the commutator segment group (9), the outer wall of the tightening ring bushing (4) is provided with a matching product fork (5) The product fork (5) comprises a product fork (5) body, handles (52) are provided on both sides of the product fork (5) body, a plurality of clamping grooves (53) for clamping the tight ring bushing (4) are provided on the product fork (5) body, the width of the clamping groove (53) matches the outer diameter of the tight ring bushing (4), and the product fork (5) body adopts a wedge-shaped structure at the front end of the clamping groove (53).

7. The special production equipment for special-shaped commutators according to claim 1, characterized in that: The burr processing station (14) comprises a burr rubbing board (141), wherein the burr rubbing board (141) is tiltedly arranged on the workbench (1), and the workbench (1) is provided with waste discharge grooves (142) on both the front and rear sides of the burr rubbing board (141).

8. The special production equipment for special-shaped commutators according to claim 1, characterized in that: The workbench (1) is provided with a placement rack (15) for placing the commutator segment group (9) and the commutator finished product on the outside of the inspection table (12) and the burr processing station (14).

9. A production process for a special-shaped commutator, characterized by: The special production equipment for special-shaped commutators according to any one of claims 1 to 8 comprises the following steps: S1. Using the metal sensor (121) on the inspection table (12), the commutator segment group (9) is detected to see whether the reinforcement ring (94) is installed. Then, the commutator segment group (9) is fixed by the positioning ring (3), and the rubber band (92) sleeved on the outside of the commutator segment group (9) is removed. S2, placing the tight ring bushing (4) in the transition slot (75) of the transition tray (74), placing the guide plate (2) on the transition tray (74), and then placing the commutator segment group (9) fixed by the positioning ring (3) in the guide hole (22) of the guide plate (2); S3, pushing the transition tray (74) onto the die-feeding seat (71) through the transition slide (73), and driving the die-feeding pressing plate (76) by the driving cylinder (11) to press the commutator plate group (9) in the guide hole (22) into the tight ring bushing (4); S4, remove the transition tray (74) from the die-feeding base (71) and uniformly recover the positioning ring (3), and then remove the plastic core (93) in the commutator segment group (9); S5. Using the product fork (5), the tight ring bushing (4) that has been pressed into the commutator segment group (9) on the transition tray (74) is placed on the preheating station (8) to preheat the commutator segment group (9), and the cake is placed in the cake heating device (13) for heating; S6, placing the preheated commutator segment assembly (9) and the tight ring bushing (4) into the injection hole (611) of the lower movable middle template (610) of the injection molding station (6), then pushing the lower movable middle template (610) into the injection molding station (6), and then starting the driving cylinder (11) to drive the middle slide (614) to move downward until the middle slide (614) abuts against the lower movable middle template (610); S7, taking out the cake from the cake heating device (13) and placing it in the block bushing (615) of the middle slide (614), and then starting the driving cylinder (11) again to close the mold and injection-mold the commutator; S8, ejecting the commutator product and the tight ring bushing (4) from the injection hole (611) of the lower movable middle template (610) through the lower punch (612), and fixing the tight ring bushing (4) through the product fork (5) to prevent the tight ring bushing (4) from falling back into the injection hole (611), and then driving the lower punch (612) back through the driving cylinder (11), and finally moving the lower movable middle template (610) out of the injection station (6); S9, the commutator finished product and the tight ring bushing (4) on the lower movable middle template (610) are moved to the die delivery groove (72) of the die delivery seat (71) by the product fork (5), and the die delivery pressing plate (76) is driven by the driving cylinder (11) to eject the commutator finished product in the tight ring bushing (4) into the receiving groove (79), and at the same time, the waste on the commutator finished product is ejected by the waste ejector pin (78); S10, performing burr removal on the commutator finished product by using the burr rubbing plate (141) of the burr removal station (14), thereby obtaining a final product.

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