Circuit breaker motor assembly line

Abstract

The present application relates to a circuit breaker motor assembly production line, which includes a workbench, on which a first assembly mechanism for assembling a shaft retaining ring onto a rotating shaft, a second assembly mechanism for assembling a motor front end cover, a front end cover bearing and an elastic retaining ring onto the rotating shaft, and a third assembly mechanism for assembling a rotor into a stator, assembling another shaft retaining ring and bolting the motor front end cover and rear end cover bracket are provided. The present application has the advantages of reducing the labor intensity of workers and improving assembly efficiency.

Description

Technical Field

[0001] The present application relates to the field of circuit breakers, and in particular to a motor assembly production line for circuit breakers. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions, and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when serious overloads, short circuits, undervoltage and other faults occur. Moreover, there is generally no need to change components after disconnecting the fault current, so they have been widely used.

[0004] There is a circuit breaker in the related art, referring to Figure 1 , including a front cover rotor, a shaft retaining ring 12, a front cover 13 of a motor, a front cover bearing 14, an elastic retaining ring 15, a stator 16, and a rear cover bracket 17. The front cover rotor includes a rotating shaft 11, on which two annular limiting grooves 18 are formed, the shaft retaining ring 12 is clamped on the rotating shaft 11 and is located in the limiting grooves 18, the shaft retaining ring 12 is in a fracture type and mounting holes 19 are respectively formed at both ends of the fracture, a front cover bearing 14 is mounted on the rotating shaft 11, the front cover bearing 14 is located between the two shaft retaining rings 12, the front cover bearing 14 is mounted on one side of the front cover 13 of the motor, the elastic retaining ring 15 is mounted in the front cover 13 of the motor and is located between the front cover bearing 14 and the shaft retaining ring 12, the stator 16 is sleeved on the front cover rotor, the front cover 13 of the motor is bolted to the rear cover bracket 17, and the stator 16 is clamped between the front cover 13 of the motor and the rear cover bracket 17.

[0005] With respect to the above-mentioned related technologies, the inventors believe that in the actual production process, the assembly of the above-mentioned circuit breakers is performed manually, and the manual assembly process results in high labor intensity for the workers and low assembly efficiency, which has obvious shortcomings. Summary of the invention

[0006] In order to reduce the labor intensity of workers and improve assembly efficiency, the present application provides a motor assembly production line for a circuit breaker.

[0007] The present application provides a circuit breaker motor assembly production line adopting the following technical solution:

[0008] A circuit breaker motor assembly production line comprises a workbench, on which a first assembly mechanism for assembling a shaft retaining ring onto a rotating shaft, a second assembly mechanism for assembling a motor front end cover, a front end cover bearing and an elastic retaining ring onto the rotating shaft, and a third assembly mechanism for installing a rotor into a stator, assembling another shaft retaining ring and bolting the motor front end cover and rear end cover bracket are provided.

[0009] By adopting the above technical solution, the first assembly mechanism can assemble a shaft retaining ring on the rotating shaft, the second assembly mechanism installs the front end cover bearing and the elastic retaining ring into the front end cover of the motor, and then installs the front end cover of the motor to the rotating shaft, and the third assembly mechanism assembles the second shaft retaining ring to the rotating shaft, and then the front end cover of the motor and the rear end cover bracket are bolted together, thereby realizing the mechanized assembly of the circuit breaker. The operating workers only need to replenish and move parts regularly, which reduces the labor intensity of the workers and improves the assembly efficiency.

[0010] Optionally, the first assembly mechanism includes a first bearing mechanism and a snap spring assembly mechanism, the first bearing mechanism includes a first positioning block, and the first positioning block is provided with a first accommodating cavity for the front end cover rotor to be placed therein;

[0011] The spring assembly mechanism includes an installation part, and the installation part includes a second bracket connected to the workbench, a fourth cylinder connected to the second bracket, a fifth fixing plate connected to the piston rod of the fourth cylinder, a sixth fixing plate connected to the fifth fixing plate, a fifth cylinder connected to the sixth fixing plate, and a top block connected to the piston rod of the fifth cylinder, wherein the seventh fixing plate is respectively connected to the seventh fixing plate on opposite sides of the sixth fixing plate, an eighth fixing plate is connected between the two seventh fixing plates, and a retaining ring slider is slidably connected to the side of the eighth fixing plate facing away from the sixth fixing plate, and the retaining ring slider is located below the top block, and the tops of the opposite side walls of the two retaining ring sliders are respectively provided with conflicting inclined surfaces, and the distance between the two conflicting inclined surfaces gradually decreases along the direction from top to bottom, and a spring clamping plate is respectively connected to the two retaining ring sliders, and a pin for inserting into the installation hole is connected to the spring clamping plate, and a reset compression spring is supported between the retaining ring slider and the corresponding seventh fixing plate.

[0012] By adopting the above technical solution, the operator places the front cover rotor in the first accommodating cavity, then moves the first positioning block to the installation part, and then manually moves the shaft retaining ring to the retaining spring clamping plate, so that the pin is inserted into the two installation holes on the shaft retaining ring, and then starts the fifth cylinder, the piston rod of the fifth cylinder drives the top block to move downward, the top block props up the two retaining ring sliders by the contact inclined surface, and the two retaining ring sliders move away from each other, so that the two pins can break the shaft retaining ring apart, and the shaft retaining ring is deformed, and the fourth cylinder is started, and the piston rod of the fourth cylinder extends, so that the pin can drive the shaft retaining ring to move to the position relative to the limit groove on the rotating shaft, the piston rod of the fifth cylinder retracts, and the reset compression spring pushes the retaining ring slider to reset, and the shaft retaining ring returns to its normal shape and is stuck in the limit groove, so that the assembly between the rotating shaft and the shaft retaining ring is realized. The piston rod of the fourth cylinder retracts, driving the pin to reset.

[0013] Optionally, the second assembly mechanism includes a second bearing mechanism and a motor front end cover assembly mechanism, and the motor front end cover assembly mechanism includes a front end cover bearing assembly assembly, a circlip assembly assembly, and a front end cover assembly assembly;

[0014] The second bearing mechanism comprises a second positioning block, and the second positioning block is provided with a second accommodating cavity for the front end cover rotor or the motor front end cover to be placed therein;

[0015] The front end cover bearing assembly assembly includes a cylinder support three connected to the workbench, an eighth cylinder arranged on the cylinder support three, a thirteenth fixing plate connected to the piston rod of the eighth cylinder, a fourteenth fixing plate connected to the thirteenth fixing plate, and a three-claw cylinder connected to the fourteenth fixing plate, wherein the clamping claws of the three-claw cylinder face the ground;

[0016] The circlip assembly assembly includes a cylinder support four connected to the workbench, a ninth cylinder arranged on the cylinder support four, a fifteenth fixed plate connected to the piston rod of the ninth cylinder, a fixed seat connected to the fifteenth fixed plate, and a third clamping jaw cylinder connected to the fixed seat, a bearing seat bolted to the fixed seat, the bearing seat is higher than the third clamping jaw cylinder, a tenth cylinder is connected to the bearing seat, the piston rod of the tenth cylinder points to the ground, and a magnetic top sleeve is connected to the piston rod of the tenth cylinder;

[0017] The front end cover assembly assembly includes a third bracket connected to the workbench, a first mounting plate connected to the third bracket and vertically arranged, second mounting plates are respectively connected to both ends of the first mounting plate, a vertically arranged first screw rod is rotatably passed through the two second mounting plates, a third motor is connected to the second mounting plate, an output shaft of the third motor is coaxially connected to one end of the first screw rod, a mounting seat is sleeved on the first screw rod, the mounting seat is threadedly matched with the first screw rod, the mounting seat is tightly attached to the first mounting plate, and a fourth clamping cylinder is provided on the mounting seat.

[0018] By adopting the above technical solution, the operator manually puts the front end cover of the motor into the second accommodating cavity, and then moves the second positioning block to the front end cover bearing assembly. The operator manually moves the front end cover bearing to the three-claw cylinder and clamps the front end cover bearing through the three-claw cylinder, starts the eighth cylinder, and the piston rod of the eighth cylinder extends, thereby driving the thirteenth fixing plate and the fourteenth fixing plate to move. The fourteenth fixing plate installs the front end cover bearing into the front end cover of the motor through the three-claw cylinder, and then the piston rod of the eighth cylinder retracts, and the three-claw cylinder resets;

[0019] The operator continues to move the second positioning block to the circlip assembly assembly, and manually moves the circlip close to the top sleeve. The top sleeve adsorbs the circlip through magnetism, and the piston rod of the ninth cylinder extends, so that the fifteenth fixing plate drives the third clamping jaw and the tenth cylinder to move downward through the fixing seat, and the piston rod of the tenth cylinder extends, so that the top sleeve installs the circlip into the front end cover of the motor. When the piston rod of the tenth cylinder retracts, the third clamping jaw cylinder clamps the top sleeve, thereby reducing the possibility that the top sleeve pulls the circlip out of the front end cover of the motor again.

[0020] The operator continues to move the second positioning block to the front end cover assembly assembly, and clamps the motor front end cover that has been installed with the front end cover bearing and the elastic retaining ring in the fourth clamping jaw cylinder, and then puts the front end cover rotor that is equipped with a shaft retaining ring into the second positioning block, starts the third motor, and the output shaft of the third motor rotates to drive the first screw rod to rotate, and the mounting seat moves up and down by cooperating with the thread of the first screw rod. When the mounting seat moves downward, it drives the fourth clamping jaw cylinder to move downward, and the fourth clamping jaw cylinder assembles the motor front end cover that has been installed with the front end cover bearing and the elastic retaining ring to the front end cover rotor, thereby realizing the assembly of the elastic retaining ring, the front end cover bearing, and the motor front end cover on the front end cover rotor.

[0021] Optionally, the third assembly mechanism includes a third bearing mechanism and a stator-rotor assembly mechanism, the stator-rotor assembly mechanism includes a press-fit mechanism and a screw-tightening mechanism, and the retaining spring assembly mechanism is further provided with a group next to the press-fit mechanism;

[0022] The third bearing mechanism comprises a third positioning block, and the third positioning block is provided with a placement groove for placing the rear end cover bracket;

[0023] The press-fitting mechanism comprises a cylinder fixing frame connected to the workbench, a twelfth cylinder connected to the cylinder fixing frame, a piston rod of the twelfth cylinder pointing to the ground, and the piston rod of the twelfth cylinder passes through the cylinder fixing frame and is connected to a push rod;

[0024] The screw-tightening mechanism comprises a screw fixing frame connected to the workbench, a thirteenth air cylinder arranged on the screw fixing frame, an eighteenth fixing plate fixedly connected to the piston rod of the thirteenth air cylinder, a screw machine hanging plate connected to the eighteenth fixing plate, and a fourteenth air cylinder connected to the screw machine hanging plate, wherein the piston rod of the fourteenth air cylinder points to the ground and is connected to an electric screwdriver fixing block, and a carbon brush electric screwdriver is installed on the electric screwdriver fixing block;

[0025] The screw-tightening mechanism also includes a nozzle fixing block connected to the screw machine hanging plate, the nozzle fixing block is vertically provided with an assembly hole, the screwdriver of the carbon brush electric screwdriver is slidably inserted into the assembly hole, an inclined tube is integrally formed on one side of the nozzle fixing block, the inclined tube is communicated with the assembly hole, and the inclined tube is connected to a screw feeder, two fixing pins are fixedly inserted on the hand of the nozzle fixing block, a clamping block is rotatably sleeved on the fixing pin, a yield opening is opened on the side of the nozzle fixing block opposite to the clamping block, one end of the clamping block is rotatably connected to the yield opening, and an elastic compression spring is supported between the other end and the nozzle fixing block.

[0026] By adopting the above technical solution, the operator places the stator on the third positioning block, and then places the front end cover rotor with the elastic retaining ring, the front end cover bearing, and the front end cover of the motor into the stator, and then manually moves the third positioning block to the retaining spring assembly mechanism next to the press-fitting mechanism, installs the second shaft retaining spring on the rotor, and then moves the third positioning block to the press-fitting mechanism, starts the twelfth cylinder, and the piston rod of the twelfth cylinder extends, so that the push rod moves downward, thereby pressing the front end cover rotor into the stator. After the piston rod of the twelfth cylinder retracts, the operator manually moves the third positioning block to the screw tightening mechanism. First, start the fourteenth cylinder. The piston rod of the fourteenth cylinder drives the carbon brush screwdriver to move upward. The screw cutter of the carbon brush screwdriver clears the connection between the inclined tube and the assembly hole. Then the screw feeder adds screws into the assembly hole through the inclined tube. The piston rod of the fourteenth cylinder extends, so that the screw cutter of the carbon brush screwdriver hits the screw. Start the thirteenth cylinder. The piston rod of the thirteenth cylinder extends. The eighteenth fixed plate drives the fourteenth cylinder and the carbon brush screwdriver to move downward through the screw machine hanging plate. The clamp block cooperates with the front end cover of the motor, so that the clamp block rotates on the fixing pin. The two clamp blocks loosen the screws. At this time, start the carbon brush screwdriver, and the carbon brush screwdriver tightens the screws between the front end cover and the rear end cover bracket of the motor.

[0027] Optionally, the workbench is also provided with a first translation mechanism, which is located between the first assembly mechanism and the second translation mechanism, and the second translation mechanism includes a cylinder support connected to the workbench, a first electric cylinder connected to the cylinder support, and a sixth cylinder arranged on the first electric cylinder slider, the piston rod of the sixth cylinder points to the ground and is fixedly connected to a ninth fixed plate, the ninth fixed plate is connected to a tenth fixed plate, and the tenth fixed plate is connected to a first clamping cylinder.

[0028] By adopting the above technical solution, the first clamping cylinder can clamp the parts and achieve lifting through the sixth cylinder, and then achieve translation through the first electric cylinder, thereby achieving the movement of parts in a mechanical way and reducing the labor intensity of the operators.

[0029] Optionally, a second translation mechanism is also provided on the workbench, and the second translation mechanism is located between the second assembly mechanism and the third assembly mechanism. The second translation mechanism includes a cylinder support five connected to the workbench, a fifth electric cylinder connected to the cylinder support five, and an eleventh cylinder arranged on the fifth electric cylinder slider. The piston rod of the eleventh cylinder points to the ground and is fixedly connected to a sixteenth fixed plate, the sixteenth fixed plate is connected to a seventeenth fixed plate, and the seventeenth fixed plate is connected to a fifth clamping cylinder.

[0030] By adopting the above technical solution, the fifth clamp can clamp the parts and lift them through the eleventh cylinder, and then translate them through the fifth electric cylinder, thereby mechanically moving the parts and reducing the labor intensity of the operators.

[0031] Optionally, the workbench is also provided with a pressing mechanism, which is arranged below the fourteenth cylinder. The pressing mechanism includes a first support frame connected to the workbench, and a fifteenth cylinder bolted to the first support frame. The piston rod of the fifteenth cylinder faces away from the ground, and the piston rod of the fifteenth cylinder is connected to a pressing block for pressing the parts.

[0032] By adopting the above technical solution, the parts are pressed by the pressing mechanism during screwing, thereby reducing the possibility of movement of the parts during the screwing process.

[0033] Optionally, the workbench is further provided with a lubrication mechanism, which is arranged next to the screw tightening mechanism. The lubrication mechanism includes a second support frame connected to the workbench and a grease storage box connected to the second support frame.

[0034] By adopting the above technical solution, during the screw-tightening work, the screwdriver of the carbon brush electric screwdriver can be inserted into the grease storage box, and the screwdriver can be stained with grease, so that the screwdriver can be inserted into the assembly hole more smoothly.

[0035] In summary, the present application includes the following beneficial technical effects: the first assembly mechanism can assemble a shaft retaining ring on the rotating shaft, the second assembly mechanism installs the front end cover bearing and the elastic retaining ring into the front end cover of the motor, and then installs the front end cover of the motor to the rotating shaft, the third assembly mechanism assembles the second shaft retaining ring to the rotating shaft, and then bolts the front end cover of the motor and the rear end cover bracket, thereby realizing the mechanized assembly of the circuit breaker. The operating workers only need to replenish and move parts regularly, which reduces the labor intensity of the workers and improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an assembly drawing used to reflect the connection relationship between the front end cover rotor, the motor front end cover, and the stator in the background technology;

[0037] Figure 2 It is a schematic diagram of the structure used to embody the present application;

[0038] Figure 3 It is a schematic diagram of the structure of the first carrier plate in the embodiment of the present application;

[0039] Figure 4 It is a schematic diagram of the structure of the first bracket used to reflect the embodiment of the present application;

[0040] Figure 5 It is an exploded view for illustrating the connection relationship between the second fixing plate, the fourth fixing plate, and the third cylinder in the embodiment of the present application;

[0041] Figure 6 It is an exploded view for illustrating the connection relationship between the retaining spring clamping plate, the retaining ring slider, and the seventh fixing plate in the embodiment of the present application;

[0042] Figure 7 It is a schematic diagram of the structure of the second carrier plate in the embodiment of the present application;

[0043] Figure 8 It is a schematic diagram of the structure of the cylinder support three in the embodiment of the present application;

[0044] Fig. 9 It is a schematic diagram of the structure of the cylinder support four in the embodiment of the present application;

[0045] Fig.10 is a schematic diagram of the structure of the third bracket in the embodiment of the present application;

[0046] Fig.11 It is a schematic diagram of the structure of the cylinder support 5 in the embodiment of the present application;

[0047] Fig.12 It is a schematic diagram of the structure of the third carrier plate in the embodiment of the present application;

[0048] Fig.13 It is an exploded view for reflecting the connection relationship between the screw slider plate, the thirteenth cylinder, the eighteenth fixing plate, and the screw machine hanging plate in the embodiment of the present application;

[0049] Fig.14 It is an exploded view used to illustrate the connection relationship between the inclined tube, the fixing pin, and the clamping block in the embodiment of the present application.

[0050] Description of the accompanying drawings: 1. workbench; 2. material storage box; 3. stop bar; 401. first motor; 402. first carrier plate; 403. first positioning block; 404. first accommodating chamber; 410. first cylinder; 411. first bracket; 412. second cylinder; 413. first fixed plate; 414. second fixed plate; 415. third fixed plate; 416. fourth fixed plate; 417. third cylinder; 418. material discharge trough; 419. material discharge trough; 420. push bar; 421. fork block; 422. slide bar; 423. slide rail; 430. second bracket; 431. fifth fixed plate; 432. sixth fixed plate; 433. fifth cylinder; 434. top block; 435. seventh fixed plate; 436. eighth fixed plate; 437, retaining ring slider; 438, abutting inclined surface; 439, retaining spring clamp; 440, latch; 441, convex strip; 442, sliding groove; 443, return spring; 444, fourth cylinder; 50, cylinder support one; 51, first electric cylinder; 52, sixth cylinder; 53, ninth fixed plate; 54, tenth fixed plate; 55, first clamping jaw cylinder; 601, second motor; 602, second bearing plate; 603, second positioning block; 604, second accommodating chamber; 610, bearing plate; 611, vibration plate; 620, cylinder support two; 621, second electric cylinder; 622, first side slide moving seat; 623, seventh cylinder; 624, eleventh fixed plate; 625, twelfth fixed plate; 626, second clamping jaw cylinder; 630, cylinder support three; 631, third electric cylinder; 632, second side slide moving seat; 633, eighth cylinder; 634, thirteenth fixed plate; 635, fourteenth fixed plate; 636, three-claw cylinder; 640, cylinder support four; 641, fourth electric cylinder; 642, third side slide moving seat; 643, ninth cylinder; 644, fifteenth fixed plate; 645, fixed seat; 646, third clamping jaw cylinder; 647, bearing seat; 648, tenth cylinder; 649, top sleeve; 650, third bracket; 651, first mounting plate; 652, second mounting plate; 653, first screw rod; 654, third motor; 655, mounting seat; 656, flip cylinder; 657, fourth clamping jaw cylinder; 71, cylinder support Five; 72, the fifth electric cylinder; 73, the fourth side slide moving seat; 74, the eleventh cylinder; 75, the sixteenth fixed plate; 76, the seventeenth fixed plate; 77, the fifth clamping jaw cylinder; 801, the fourth motor; 802, the third carrier plate; 803, the third positioning block; 804, the placement slot; 810, the cylinder fixing frame; 811, the twelfth cylinder; 812, the push rod; 820, the screw fixing frame; 821, the guide rail frame; 822, the second screw rod; 823, the fifth motor; 824, the screw rod slider plate; 825, the thirteenth cylinder; 826, the eighteenth fixed plate; 827, the screw machine hanging plate; 828, the fourteenth cylinder; 829, the electric screwdriver fixing block; 830, the carbon brush electric screwdriver; 831, the clamping nozzle fixing block; 832, the assembly hole;833, inclined tube; 834, fixing pin; 835, clamping block; 836, clearance port; 837, elastic compression spring; 840, translation rail; 841, translation block; 850, guide bar; 851, guide plate; 852, guide groove; 91, first support frame; 92, fifteenth cylinder; 93, pressure block; 101, second support frame; 102, grease storage box; 11, rotating shaft; 12, shaft retaining ring; 13, front end cover of the motor; 14, front end cover bearing; 15, elastic retaining ring; 16, stator; 17, rear end cover bracket; 18, limit groove; 19, mounting hole. ; DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-14 This application is described in further detail.

[0052] There is a circuit breaker in the related art, referring to Figure 1 , including a front cover rotor, a shaft retaining ring 12, a front cover 13 of a motor, a front cover bearing 14, an elastic retaining ring 15, a stator 16, and a rear cover bracket 17. The front cover rotor includes a rotating shaft 11, on which two annular limiting grooves 18 are formed, the shaft retaining ring 12 is clamped on the rotating shaft 11 and is located in the limiting grooves 18, the shaft retaining ring 12 is in a fracture type and mounting holes 19 are respectively formed at both ends of the fracture, a front cover bearing 14 is mounted on the rotating shaft 11, the front cover bearing 14 is located between the two shaft retaining rings 12, the front cover bearing 14 is mounted on one side of the front cover 13 of the motor, the elastic retaining ring 15 is mounted in the front cover 13 of the motor and is located between the front cover bearing 14 and the shaft retaining ring 12, the stator 16 is sleeved on the front cover rotor, the front cover 13 of the motor is bolted to the rear cover bracket 17, and the stator 16 is clamped between the front cover 13 of the motor and the rear cover bracket 17.

[0053] The present application embodiment discloses a circuit breaker motor assembly production line. Figure 2 The motor assembly production line of the circuit breaker includes a workbench 1 placed on the ground, a first assembly mechanism arranged on the workbench 1, a first translation mechanism, a second assembly mechanism, a second translation mechanism, and a third assembly mechanism.

[0054] Reference Figure 1 and Figure 2 A material storage box 2 with an open top is placed on the workbench 1, and the material storage box 2 is used to place the shaft retaining ring 12; a retaining bar 3 in a "concave" shape is also bolted to the workbench 1, and one side of the opening of the retaining bar 3 and the extended edge of the workbench 1 form a rectangular space, and the material storage box 2 is placed in the rectangular space, thereby realizing the limitation of the material storage box 2.

[0055] Reference Figure 1 and Figure 3The first assembly mechanism is used to assemble a shaft retaining spring 12 into a limiting groove 18 on the rotating shaft 11. The first assembly mechanism includes a first bearing mechanism and a retaining spring assembly mechanism. The first bearing mechanism includes a first motor 401, a first bearing plate 402, and a plurality of first positioning blocks 403.

[0056] Reference Figure 3 The first motor 401 is bolted to the workbench 1, and the output shaft of the first motor 401 faces away from the workbench 1; the first carrier plate 402 is horizontally arranged, and the first carrier plate 402 is fixedly sleeved on the output shaft of the first motor 401, and the first carrier plate 402 is coaxially arranged with the output shaft of the first motor 401.

[0057] Reference Figure 2 and Figure 3 A plurality of first positioning blocks 403 are bolted to the first carrier plate 402 , and the plurality of first positioning blocks 403 are circumferentially arranged around the axis of the first carrier plate 402 . The first positioning blocks 403 are provided with a first accommodating cavity 404 for the front end cover rotor to be placed in.

[0058] Reference Figure 2 and Figure 3 , start the first motor 401, and the staff puts the front end cover rotor into the first accommodating cavity 404 on the first positioning block 403. The output shaft of the first motor 401 drives the first carrier plate 402 to rotate. When the first carrier plate 402 rotates, it drives several first positioning blocks 403 to rotate at the same time, so that the front end cover rotor is moved to the retaining spring assembly mechanism for assembly.

[0059] Reference Figure 3 and Figure 4 The retaining spring assembly mechanism includes a loading part and a mounting part. The loading part includes a first cylinder 410 bolted to the workbench 1, a first bracket 411 connected to the piston rod of the first cylinder 410, a second cylinder 412 bolted to the first bracket 411, and a first fixing plate 413 fixedly connected to the piston rod of the second cylinder 412. The piston rod of the second cylinder 412 points to the ground.

[0060] Reference Figure 3 and Figure 4 The loading part also includes a second fixed plate 414 bolted to the first fixed plate 413, a third fixed plate 415 bolted to the bottom of the second fixed plate 414, a fourth fixed plate 416 bolted to one side of the second fixed plate 414, and a third cylinder 417 bolted to the fourth fixed plate 416.

[0061] Reference Figure 4 and Figure 5The second fixed plate 414 is vertically arranged, and a discharge groove 418 adapted to the shaft retaining ring 12 is vertically opened on the second fixed plate 414, and a discharge groove 419 communicating with the discharge groove 418 is opened on the upper surface of the third fixed plate 415; the third cylinder 417 is located on the lower surface of the fourth fixed plate 416, and the piston rod of the third cylinder 417 is connected to a horizontally arranged push bar 420, which extends into the discharge groove 419 and slides with it.

[0062] Reference Figure 4 and Figure 5 The third fixed plate 415 is fixedly connected with a forked block 421 for inserting the broken end of the shaft retaining spring 12 at a position away from the third cylinder 417 relative to the discharge groove 419. The setting of the forked block 421 calibrates the position of the shaft retaining spring 12, thereby reducing the possibility of the shaft retaining spring 12 rotating when the push bar 420 pushes the shaft retaining spring 12 to slide in the discharge groove 419.

[0063] Reference Figure 4 and Figure 5 , start the first cylinder 410, the piston rod of the first cylinder 410 drives the first bracket 411 to move, and the first bracket 411 moves the third fixing plate 415 to the top of the front cover rotor through the first fixing plate 413 and the second fixing plate 414. The staff puts a plurality of shaft retaining rings 12 into the discharge trough 418, and the lowest shaft retaining ring 12 is located in the discharge trough 419.

[0064] Reference Figure 4 and Figure 5 , start the third cylinder 417, the piston rod of the third cylinder 417 drives the push bar 420 to slide in the discharge chute 419, and the push bar 420 pushes the lowest shaft retaining ring 12 to the top of the front end cover rotor, and the fork block 421 just fits into the broken end of the shaft retaining ring 12.

[0065] Reference Figure 4 and Figure 5 The bottom end of the first bracket 411 is fixedly connected with a slide bar 422, and a slide rail 423 is bolted on the workbench 1. The slide bar 422 and the slide rail 423 are slidably matched, and the slide rail 423 is parallel to the piston rod of the first cylinder 410. The sliding match between the slide bar 422 and the slide rail 423 guides the movement of the first bracket 411 and makes the movement of the first bracket 411 more stable.

[0066] Reference Figure 3 and Figure 6 The mounting portion includes a second bracket 430 bolted to the workbench 1 , a fourth cylinder 444 bolted to the second bracket 430 , a fifth fixing plate 431 fixedly connected to the piston rod of the fourth cylinder 444 , and a sixth fixing plate 432 bolted to the fifth fixing plate 431 .

[0067] Reference Figure 3 and Figure 6 A fifth cylinder 433 is bolted to a side of the sixth fixing plate 432 facing away from the fifth fixing plate 431 , a piston rod of the fifth cylinder 433 points to the ground, and a top block 434 is fixedly connected to the piston rod of the fifth cylinder 433 .

[0068] Reference Figure 3 and Figure 6 The sixth fixing plate 432 is bolted to the opposite sides thereof with the seventh fixing plates 435 , an eighth fixing plate 436 is bolted between the two seventh fixing plates 435 , and the eighth fixing plate 436 is provided with two vertically arranged retaining ring sliders 437 on the side facing away from the sixth fixing plate 432 .

[0069] Reference Figure 3 and Figure 6 The top ends of the two retaining ring sliders 437 on the opposite side walls are respectively provided with abutment slopes 438, and the distance between the two abutment slopes 438 gradually decreases from top to bottom. A circlip clamping plate 439 is bolted to each of the two retaining ring sliders 437, and a pin 440 for inserting into the mounting hole 19 is integrally formed on the lower surface of the circlip clamping plate 439.

[0070] Reference Figure 3 and Figure 6 The eighth fixing plate 436 has two horizontally arranged protrusions 441 formed integrally on one side facing away from the sixth fixing plate 432, and the connecting line between the two protrusions 441 is arranged vertically. The retaining ring slider 437 has a sliding groove 442 matched with the protrusion 441, and the retaining ring slider 437 slides on the protrusion 441 through the sliding groove 442. The longitudinal sections of the protrusion 441 and the sliding groove 442 are both arranged in a dovetail shape, and the dovetail shape reduces the possibility of the retaining ring slider 437 falling off from the protrusion 441.

[0071] Reference Figure 3 and Figure 6 A return compression spring 443 is supported between the retaining ring slider 437 and the corresponding seventh fixed plate 435. The return compression spring 443 applies a thrust to the retaining ring slider 437, and the two retaining ring sliders 437 approach each other, thereby realizing automatic resetting of the retaining ring slider 437.

[0072] Reference Figure 3 and Figure 6 , start the fourth cylinder 444, the piston rod of the fourth cylinder 444 drives the sixth fixing plate 432 to move through the fifth fixing plate 431, the sixth fixing plate 432 drives the eighth fixing plate 436 to move through the seventh fixing plate 435, the eighth fixing plate 436 drives the retaining ring slider 437 to move downward through the convex strip 441, and the retaining ring slider 437 drives the pin 440 to be inserted into the mounting hole 19 on the shaft retaining ring 12 through the retaining ring clamp 439.

[0073] Reference Figure 3 and Figure 6 , start the fifth cylinder 433, the piston rod of the fifth cylinder 433 drives the top block 434 to move downward, the top block 434 pushes the two retaining ring sliders 437 apart through the abutting inclined surface 438, and the two retaining ring sliders 437 move away from each other, so that the two latches 440 can pry apart the shaft retaining spring 12, and the shaft retaining spring 12 is deformed.

[0074] Reference Figure 3 and Figure 6 At this time, the second cylinder 412 is started, and the piston rod of the second cylinder 412 drives the third fixing plate 415 to move downward through the first fixing plate 413 and the second fixing plate 414, and the forked block 421 on the third fixing plate 415 moves out of the break of the shaft retaining ring 12, and then the first cylinder 410 is started, and the piston rod of the first cylinder 410 drives the third fixing plate 415 to move away from above the front end cover rotor.

[0075] Reference Figure 3 and Figure 6 , the fourth cylinder 444 is started again, and the piston rod of the fourth cylinder 444 continues to extend, so that the latch 440 can drive the shaft retaining spring 12 to move to the position on the rotating shaft 11 relative to the limiting groove 18, and the piston rod of the fifth cylinder 433 is retracted, and the return compression spring 443 pushes the retaining ring slider 437 to reset, and the shaft retaining spring 12 returns to its normal shape and is stuck in the limiting groove 18. The piston rod of the fourth cylinder 444 is retracted, driving the latch 440 to reset.

[0076] Reference Figure 4 and Figure 6 Through the cooperation of the loading part and the installation part, the assembly between the shaft retaining spring 12 and the front end cover rotor is realized. Although it is necessary to manually place the front end cover rotor and regularly replenish the shaft retaining spring 12 into the discharge trough 418, compared with the fully manual assembly, the present application still reduces the labor intensity of the operators and improves the assembly efficiency.

[0077] Reference Figure 7 When the shaft retaining ring 12 and the front end cover rotor are assembled, the first carrier plate 402 rotates to remove the assembled parts and allow the unassembled parts to be moved in, so as to continue the next assembly work.

[0078] Reference Figure 7 The first translation mechanism is used to move the parts from the first assembly mechanism to the second assembly mechanism for the next assembly work. The first translation mechanism includes a cylinder support 50 bolted to the workbench 1, a first electric cylinder 51 bolted to the cylinder support 50, and a sixth cylinder 52 bolted to the slider of the first electric cylinder 51, and the piston rod of the sixth cylinder 52 points to the ground.

[0079] Reference Figure 7The first translation mechanism also includes a ninth fixing plate 53 fixedly connected to the piston rod of the sixth cylinder 52 , a tenth fixing plate 54 fixedly connected to the ninth fixing plate 53 , and a first clamping cylinder 55 bolted to the tenth fixing plate 54 .

[0080] Reference Figure 7 , start the first electric cylinder 51, the slider on the first electric cylinder 51 drives the sixth cylinder 52 to move, the sixth cylinder 52 drives the first clamping cylinder 55 through the ninth fixed plate 53 and the tenth fixed plate 54, and when the first clamping cylinder 55 moves to just above the front end cover rotor, the first electric cylinder 51 is closed.

[0081] Reference Figure 7 , the piston rod of the sixth cylinder 52 extends, the first clamping cylinder 55 moves downward, the first clamping cylinder 55 clamps the front end cover rotor, the piston rod of the sixth cylinder 52 retracts, and the front end cover rotor is taken out from the first positioning block 403.

[0082] Reference Figure 7 , start the first electric cylinder 51 again, and the slider on the first electric cylinder 51 moves toward the second assembly mechanism. When it moves to the specified position, the piston rod of the sixth cylinder 52 extends to drive the first clamping cylinder 55 to descend, and the first clamping cylinder 55 releases the front end cover rotor, and the piston rod of the sixth cylinder 52 retracts, thereby moving the front end cover rotor to the second assembly mechanism.

[0083] Reference Figure 8 The second assembly mechanism includes a second bearing mechanism and a motor front end cover 13 assembly mechanism, and the second bearing mechanism includes a second motor 601, a second bearing plate 602, and a plurality of second positioning blocks 603.

[0084] Reference Figure 8 The second motor 601 is bolted to the workbench 1, the output shaft of the second motor 601 faces away from the workbench 1, the second carrier plate 602 is horizontally arranged and fixedly sleeved on the output shaft of the second motor 601, and the second carrier plate 602 and the output shaft of the second motor 601 are coaxially arranged. When the second motor 601 is started, the output shaft of the second motor 601 drives the second carrier plate 602 to rotate.

[0085] Reference Figure 8 The second positioning block 603 is bolted to the second carrier plate 602, and a plurality of second positioning blocks 603 are arranged circumferentially around the axis of the second carrier plate 602. The second positioning block 603 is provided with a second accommodating cavity 604 for inserting the front end cover rotor, and the first translation mechanism moves the front end cover rotor from the first positioning block 403 to the second positioning block 603.

[0086] Reference Figure 8 and Fig. 9The motor front end cover 13 assembly mechanism includes a front end cover loading assembly, a front end cover bearing 14 assembly assembly, an elastic retaining ring 15 assembly assembly, and a front end cover assembly assembly, which are arranged in sequence around the second carrier plate 602 in the circumferential direction. The front end cover loading assembly, the front end cover bearing 14 assembly assembly, and the elastic retaining ring 15 assembly assembly each correspond to a loading structure.

[0087] Reference Figure 8 and Fig. 9 The feeding mechanism includes a bearing plate 610 bolted to the workbench 1 and a vibration plate 611 bolted to the bearing plate 610. The setting of the vibration plate 611 realizes automatic feeding.

[0088] Reference Figure 8 The front end cover loading assembly includes a cylinder support 620 bolted to the workbench 1, a second electric cylinder 621 bolted to the cylinder support 620, a first side slide movable seat 622 bolted to the slider of the second electric cylinder 621, and a seventh cylinder 623 bolted to the first side slide movable seat 622, and the piston rod of the seventh cylinder 623 points to the ground.

[0089] Reference Figure 8 The front end cover feeding assembly also includes an eleventh fixed plate 624 fixedly connected to the piston rod of the seventh cylinder 623, a twelfth fixed plate 625 bolted to the eleventh fixed plate 624, and a second clamping cylinder 626 bolted to the twelfth fixed plate 625.

[0090] Reference Figure 8 , the slider on the second electric cylinder 621 moves, the piston rod of the seventh cylinder 623 descends, the second clamping cylinder 626 takes material from the corresponding vibration plate 611, the two clamping jaws of the second clamping cylinder 626 are supported on the side wall of the cavity for installing the front end cover bearing 14, and the piston rod of the seventh cylinder 623 retracts.

[0091] Reference Figure 8 , the slider on the second electric cylinder 621 moves back, the second clamping cylinder 626 drives the motor front end cover 13 to move to the second positioning block 603, the clamping claw of the second clamping cylinder 626 releases the motor front end cover 13, the seventh cylinder 623 drives the second clamping cylinder 626 to rise, the second supporting plate 602 rotates, and the second positioning block 603 with the motor front end cover 13 is moved to the front end cover bearing 14 transfer assembly.

[0092] Reference Figure 8 The front end cover bearing 14 assembly component includes a cylinder support 3 630 bolted on the workbench 1, a third electric cylinder 631 bolted on the cylinder support 3 630, a second side slide moving seat 632 bolted on the slider of the third electric cylinder 631, an eighth cylinder 633 bolted on the second side slide moving seat 632, and the piston rod of the eighth cylinder 633 points to the ground.

[0093] Reference Figure 8 The front end cover bearing 14 assembly assembly also includes a thirteenth fixed plate 634 fixedly connected to the piston rod of the eighth cylinder 633, a fourteenth fixed plate 635 bolted to the thirteenth fixed plate 634, and a three-claw cylinder 636 bolted to the fourteenth fixed plate 635.

[0094] Reference Figure 8 , the slider on the third electric cylinder 631 moves, the piston rod of the eighth cylinder 633 descends, the three-claw cylinder 636 takes material from the corresponding vibration plate 611, the three clamping claws of the three-claw cylinder 636 are supported on the side wall of the inner ring of the front end cover bearing 14, and the piston rod of the eighth cylinder 633 retracts.

[0095] Reference Figure 8 , the slider on the third electric cylinder 631 moves back, the three-claw cylinder 636 drives the front end cover bearing 14 to move into the front end cover 13 of the motor, the clamping claws of the three-claw cylinder 636 release the front end cover bearing 14, the eighth cylinder 633 drives the three-claw cylinder 636 to rise, the second carrying plate 602 rotates, and the front end cover 13 of the motor equipped with the front end cover bearing 14 moves to the assembly assembly of the elastic retaining ring 15 through the second positioning block 603.

[0096] Reference Fig. 9 The assembly components of the elastic retaining ring 15 include a cylinder support four 640 bolted on the workbench 1, a fourth electric cylinder 641 bolted on the cylinder support four 640, a third side sliding platform moving seat 642 bolted on the slider of the fourth electric cylinder 641, a ninth cylinder 643 bolted on the third side sliding platform moving seat 642, and the piston rod of the ninth cylinder 643 points to the ground.

[0097] Reference Fig. 9 The circlip 15 assembly assembly also includes a fifteenth fixing plate 644 fixedly connected to the piston rod of the ninth cylinder 643 , a fixing seat 645 bolted to the fifteenth fixing plate 644 , and a third clamping jaw cylinder 646 bolted to the fixing seat 645 .

[0098] Reference Fig. 9 A bearing seat 647 is bolted to the fixing seat 645, a tenth cylinder 648 is bolted to the bearing seat 647, a piston rod of the tenth cylinder 648 points to the ground, a top sleeve 649 is threadedly connected to the piston rod of the tenth cylinder 648, and the top sleeve 649 is made of magnetic material.

[0099] Reference Fig. 9 , the slider on the fourth electric cylinder 641 moves, the piston rod of the ninth cylinder 643 descends, the fixing seat 645 drives the tenth cylinder 648 to move downward, the top sleeve 649 absorbs the elastic retaining ring 15 from the corresponding vibration disk 611 through the suction force of the magnetic material, and the piston rod of the ninth cylinder 643 retracts.

[0100] Reference Fig. 9 , the slider on the fourth electric cylinder 641 moves back, the top sleeve 649 drives the circlip 15 to move above the front end cover bearing 14, the piston rod of the tenth cylinder 648 retracts, and the top sleeve 649 embeds the circlip 15 into the front end cover 13 of the motor. The third clamping jaw cylinder 646 is started, and the third clamping jaw cylinder 646 clamps the top sleeve 649.

[0101] Reference Fig. 9 When the piston rod of the tenth cylinder 648 retracts, the elastic retaining ring 15 is acted upon by the clamping claws on the third clamping claw cylinder 646 and can be separated from the top sleeve 649, thereby reducing the possibility that the top sleeve 649 will bring the elastic retaining ring 15 out of the front end cover 13 of the motor again.

[0102] Reference Fig. 9 The outer wall of the circlip 15 is in close contact with the side wall of the cavity of the front end cover bearing 14 on the motor front end cover 13, so as to realize the assembly between the circlip 15 and the motor front end cover 13. The second carrier plate 602 rotates, and the motor front end cover 13 with the circlip 15 installed is moved to the front end cover assembly assembly through the second positioning block 603.

[0103] Reference Fig.10 The front end cover assembly assembly includes a third bracket 650 bolted to the workbench 1, a first mounting plate 651 bolted to the third bracket 650 and vertically arranged, second mounting plates 652 are bolted to both ends of the first mounting plate 651, a vertically arranged first screw rod 653 is rotatably passed through the two second mounting plates 652, a third motor 654 is bolted to one second mounting plate 652, and the output shaft of the third motor 654 is connected to one end of the first screw rod 653 through a coupling.

[0104] Reference Fig.10 The first screw rod 653 is sleeved with a mounting seat 655, which is threadedly matched with the first screw rod 653, and the mounting seat 655 is tightly attached to the first mounting plate 651. A turning cylinder 656 is bolted to the mounting seat 655, and a fourth clamping jaw cylinder 657 is bolted to the rotating end of the turning cylinder 656.

[0105] Reference Fig.10 The third motor 654 is a forward and reverse motor. When the output shaft of the third motor 654 rotates forward, the threaded cooperation between the mounting seat 655 and the first screw rod 653 causes the mounting seat 655 to move downward. When the fourth clamping jaw cylinder 657 moves to a suitable position, the fourth clamping jaw cylinder 657 clamps the front end cover 13 of the motor, and then the output shaft of the third motor 654 is reversed. After the mounting seat 655 rises to a certain height, the flipping cylinder 656 is started, and the flipping cylinder 656 flips the front end cover 13 of the motor.

[0106] Reference Fig.10After the first translation mechanism places the front end cover rotor into the second positioning block 603 at the front end cover assembly assembly, the output shaft of the third motor 654 rotates forward again, and the mounting seat 655 descends, thereby being sleeved on the front end cover rotor. The fourth clamping cylinder 657 releases the front end cover 13 of the motor, and reset is achieved through the third motor 654 and the flip cylinder 656. After the front end cover 13 of the motor is assembled with the front end cover rotor, it is removed from the front end cover assembly assembly.

[0107] Reference Fig.10 The second translation mechanism is arranged between the second assembly mechanism and the third assembly mechanism, and is used to move the parts assembled by the second assembly mechanism to the third assembly mechanism for the next step of assembly.

[0108] Reference Fig.11 The second translation mechanism includes a cylinder support 5 71 bolted on the workbench 1, a fifth electric cylinder 72 bolted on the cylinder support 5 71, a fourth side sliding platform moving seat 73 bolted on the slider of the fifth electric cylinder 72, an eleventh cylinder 74 bolted on the fourth side sliding platform moving seat 73, and the piston rod of the eleventh cylinder 74 points to the ground.

[0109] Reference Fig.11 The second translation mechanism also includes a sixteenth fixed plate 75 fixedly connected to the piston rod of the eleventh cylinder 74, a seventeenth fixed plate 76 bolted to the sixteenth fixed plate 75, and a fifth clamping cylinder 77 bolted to the seventeenth fixed plate 76.

[0110] Reference Fig.11 , start the fifth electric cylinder 72, the slider on the fifth electric cylinder 72 drives the eleventh cylinder 74 to move, the eleventh cylinder 74 drives the fifth clamping cylinder 77 through the sixteenth fixed plate 75 and the seventeenth fixed plate 76, when the fifth clamping cylinder 77 moves to the top of the parts assembled by the second assembly mechanism, the first electric cylinder 51 is closed.

[0111] Reference Fig.11 , the piston rod of the eleventh cylinder 74 extends out, the fifth clamping cylinder 77 moves downward, the fifth clamping cylinder 77 clamps the part, the piston rod of the eleventh cylinder 74 retracts, and the part is taken out from the second positioning block 603.

[0112] Reference Fig.11 , start the fifth electric cylinder 72 again, and the slider on the fifth electric cylinder 72 moves toward the third assembly mechanism. When it moves to the specified position, the piston rod of the eleventh cylinder 74 extends to drive the fifth clamping cylinder 77 to descend, the fifth clamping cylinder 77 releases the part, and the piston rod of the eleventh cylinder 74 retracts, thereby moving the part from the second assembly mechanism to the third assembly mechanism.

[0113] Reference Fig.12The third assembly mechanism includes a third bearing mechanism and a stator-rotor assembly mechanism. The third bearing mechanism includes a fourth motor 801 , a third bearing plate 802 , and a plurality of third positioning blocks 803 .

[0114] Reference Fig.12 The fourth motor 801 is bolted to the workbench 1, the output shaft of the fourth motor 801 faces away from the ground, the third supporting plate 802 is horizontally arranged and fixedly sleeved on the output shaft of the fourth motor 801, and the third supporting plate 802 and the output shaft of the fourth motor 801 are coaxially arranged.

[0115] Reference Fig.12 The third positioning block 803 is bolted to the third carrier plate 802, and a plurality of third positioning blocks 803 are arranged circumferentially around the axis of the third carrier plate 802. The third positioning block 803 is provided with a placement groove 804 for placing the rear end cover bracket 17 therein.

[0116] Reference Fig.12 The fourth motor 801 is started, and the output shaft of the fourth motor 801 drives the third carrier plate 802 to rotate, and the third carrier plate 802 drives a plurality of third positioning blocks 803 bolted thereto to move. The second translation mechanism inserts the front end cover rotor with the motor front end cover 13 into the stator 16.

[0117] Reference Fig.12 The stator and rotor assembly mechanism includes a press-fitting mechanism and a screw-tightening mechanism. A group of retaining spring assembly mechanisms are provided between the press-fitting mechanism and the second translation mechanism. The retaining spring assembly mechanism located between the press-fitting mechanism and the second translation mechanism is used to install a second shaft retaining spring 12 on the rotating shaft 11. The installation method of the second shaft retaining spring 12 is the same as the installation method of the first shaft retaining spring 12.

[0118] Reference Fig.12 The pressing mechanism includes a cylinder fixing frame 810 bolted to the workbench 1, a twelfth cylinder 811 bolted to the cylinder fixing frame 810, a piston rod of the twelfth cylinder 811 pointing to the ground, and the piston rod of the twelfth cylinder 811 passes through the cylinder fixing frame 810 and is threadedly connected with a push rod 812.

[0119] Reference Fig.12 When the third carrier plate 802 moves the parts to the press-fitting mechanism, the piston rod of the twelfth cylinder 811 extends to drive the push rod 812 to move downward, and the push rod 812 presses the front end cover rotor into the stator 16. When the piston rod of the twelfth cylinder 811 is reset, the push rod 812 rises, and the third carrier plate 802 rotates to move the pressed parts to the screw-tightening mechanism.

[0120] Reference Fig.12The screw tightening mechanism includes a screw fixing frame 820 bolted to the workbench 1, a guide frame 821 bolted to the screw fixing frame 820, a second screw rod 822 rotatably passed through the guide frame 821, and a fifth motor 823 bolted to one end of the guide frame 821. The output shaft of the fifth motor 823 is connected to one end of the second screw rod 822 through a coupling.

[0121] Reference Fig.12 and Fig.13 The screw tightening mechanism also includes a screw slider plate 824 threadedly sleeved on the second screw 822, a thirteenth cylinder 825 bolted to the screw slider plate 824, the piston rod of the thirteenth cylinder 825 points to the ground, and the piston rod of the thirteenth cylinder 825 is fixedly connected to an eighteenth fixed plate 826.

[0122] Reference Fig.12 and Fig.13 A screw machine hanging plate 827 is bolted to the eighteenth fixed plate 826, and a fourteenth air cylinder 828 is bolted to the top of the screw machine hanging plate 827 facing away from the eighteenth fixed plate 826. The piston rod of the fourteenth air cylinder 828 points to the ground and is threadedly connected to an electric screwdriver fixing block 829, on which a carbon brush electric screwdriver 830 is installed.

[0123] Reference Fig.12 and Fig.13 A nozzle fixing block 831 is bolted to the screw machine hanging plate 827, and a mounting hole 832 is vertically opened on the nozzle fixing block 831. The screwdriver of the carbon brush electric screwdriver 830 is slidably inserted into the mounting hole 832. An inclined tube 833 is integrally formed on one side of the nozzle fixing block 831, and the inclined tube 833 is communicated with the mounting hole 832, and the inclined tube 833 is connected to the screw feeder.

[0124] Reference Fig.13 and Fig.14 Two fixing pins 834 are fixedly provided on the nozzle fixing block 831, and a clamping block 835 is rotatably sleeved on the fixing pin 834. A clearance opening 836 is opened on the side of the nozzle fixing block 831 opposite to the clamping block 835. One end of the clamping block 835 is rotatably connected in the clearance opening 836, and an elastic compression spring 837 is supported between the other end and the nozzle fixing block 831.

[0125] Reference Fig.13 and Fig.14 The fifth motor 823 is a forward and reverse motor. The output shaft of the fifth motor 823 drives the second screw rod 822 to rotate. The screw rod slider plate 824 slides horizontally through the thread cooperation with the second screw rod 822, thereby driving the carbon brush screwdriver 830 to move to just above the assembly position.

[0126] Reference Fig.13 and Fig.14, the piston rod of the fourteenth cylinder 828 retracts, the cutter clears the connection between the inclined tube 833 and the assembly hole 832, the screw feeder adds screws into the assembly hole 832 through the inclined tube 833, and the two clamping blocks 835 cooperate to clamp the screws in the assembly hole 832.

[0127] Reference Fig.13 and Fig.14 , the piston rod of the fourteenth cylinder 828 extends, the electric screwdriver fixing block 829 moves downward, and the screwdriver blade of the carbon brush electric screwdriver 830 contacts the cross groove of the screw head. The piston rod of the thirteenth cylinder 825 extends, the screw machine hanging plate 827 moves downward, and the inclined outer walls of the two clamping blocks 835 are affected by the front end cover 13 of the motor, and the screws are loosened. Then the carbon brush electric screwdriver 830 can tighten the front end cover 13 and the rear end cover bracket 17 of the motor through the screws, and the parts after the screws are tightened are manually removed by the staff.

[0128] Reference Fig.13 and Fig.14 A translation rail 840 parallel to the guide rail frame 821 is bolted to the translation rail 840, and a translation block 841 is slidably disposed on the translation rail 840. The translation block 841 is bolted to the screw slider plate 824. The sliding cooperation between the translation rail 840 and the translation block 841 guides and positions the movement of the screw slider plate 824, which is beneficial to improving the stability of the screw slider plate 824 during movement.

[0129] Reference Fig.13 and Fig.14 A vertically arranged guide bar 850 is bolted to the screw machine hanging plate 827, and a guide plate 851 is bolted to the electric screwdriver fixing block 829. A guide groove 852 is vertically opened on the guide plate 851. The guide plate 851 is mounted on the guide bar 850 through the guide groove 852, and the guide bar 850 and the guide groove 852 are slidably matched. The sliding connection between the guide bar 850 and the guide plate 851 guides the movement of the electric screwdriver fixing block 829, which is conducive to improving the stability of the movement of the electric screwdriver fixing block 829.

[0130] Reference Fig.12 The workbench 1 is also provided with a pressing mechanism, which includes a first support frame 91 bolted to the workbench 1, a fifteenth cylinder 92 bolted to the first support frame 91, a piston rod of the fifteenth cylinder 92 facing away from the ground, and a pressing block 93 for pressing the parts is bolted to the piston rod of the fifteenth cylinder 92. The parts are pressed by the pressing mechanism during screwing, thereby reducing the possibility of parts moving during the screwing process.

[0131] Reference Fig.12The workbench 1 is also provided with a lubrication mechanism, which is arranged next to the screwing mechanism. The lubrication mechanism includes a second support frame 101 bolted to the workbench 1, and a grease storage box 102 bolted to the second support frame 101, and the top of the grease storage box 102 is open. During the screwing process, the screwdriver of the carbon brush electric screwdriver 830 can be inserted into the grease storage box 102, and the screwdriver can be stained with grease, so that the screwdriver can be more smoothly inserted into the assembly hole 832.

[0132] The implementation principle of a motor assembly production line for a circuit breaker in the embodiment of the present application is as follows:

[0133] Start the first motor 401, and the staff puts the front end cover rotor into the first accommodating cavity 404 on the first positioning block 403. The output shaft of the first motor 401 drives the first carrier plate 402 to rotate. When the first carrier plate 402 rotates, it drives several first positioning blocks 403 to rotate at the same time, so that the front end cover rotor is moved to the retaining spring assembly mechanism for assembly.

[0134] The first cylinder 410 is started, and the piston rod of the first cylinder 410 drives the first bracket 411 to move, and the first bracket 411 moves the third fixing plate 415 to the top of the front cover rotor through the first fixing plate 413 and the second fixing plate 414. The staff puts a plurality of shaft retaining rings 12 into the discharge trough 418, and the bottom of the shaft retaining ring is located in the discharge trough 419.

[0135] Start the third cylinder 417, and the piston rod of the third cylinder 417 drives the push bar 420 to slide in the discharge chute 419. The push bar 420 pushes the lowest shaft retaining ring 12 to just above the front end cover rotor, and the fork block 421 just fits into the broken end of the shaft retaining ring 12.

[0136] Start the fourth cylinder 444, the piston rod of the fourth cylinder 444 drives the sixth fixed plate 432 to move through the fifth fixed plate 431, the sixth fixed plate 432 drives the eighth fixed plate 436 to move through the seventh fixed plate 435, the eighth fixed plate 436 drives the retaining ring slider 437 to move downward through the convex strip 441, and the retaining ring slider 437 drives the pin 440 to be inserted into the mounting hole 19 on the shaft retaining ring 12 through the retaining ring clamp 439.

[0137] The fifth cylinder 433 is started, and the piston rod of the fifth cylinder 433 drives the top block 434 to move downward. The top block 434 pushes the two retaining ring sliders 437 apart through the abutting inclined surface 438, and the two retaining ring sliders 437 move away from each other, so that the two latches 440 can pry apart the shaft retaining spring 12, and the shaft retaining spring 12 is deformed.

[0138] At this time, start the second cylinder 412, and the piston rod of the second cylinder 412 drives the third fixed plate 415 to move downward through the first fixed plate 413 and the second fixed plate 414, and the forked block 421 on the third fixed plate 415 moves out of the break of the shaft retaining ring 12, and then start the first cylinder 410, and the piston rod of the first cylinder 410 drives the third fixed plate 415 to move away from above the front end cover rotor.

[0139] The fourth cylinder 444 is started again, and the piston rod of the fourth cylinder 444 continues to extend, so that the latch 440 can drive the shaft retaining spring 12 to move to the position on the rotating shaft 11 relative to the limiting groove 18, and the piston rod of the fifth cylinder 433 is retracted, and the return compression spring 443 pushes the retaining ring slider 437 to reset, and the shaft retaining spring 12 returns to its normal shape and is stuck in the limiting groove 18. The piston rod of the fourth cylinder 444 is retracted, driving the latch 440 to reset.

[0140] The first carrying plate 402 rotates, thereby moving the front end cover rotor close to the first translation mechanism, starting the first electric cylinder 51, and the slider on the first electric cylinder 51 drives the sixth cylinder 52 to move. The sixth cylinder 52 drives the first clamping cylinder 55 through the ninth fixed plate 53 and the tenth fixed plate 54. When the first clamping cylinder 55 moves to directly above the front end cover rotor, the first electric cylinder 51 is closed.

[0141] The piston rod of the sixth cylinder 52 extends, the first clamping cylinder 55 moves downward, the first clamping cylinder 55 clamps the front end cover rotor, the piston rod of the sixth cylinder 52 retracts, and the front end cover rotor is taken out from the first positioning block 403.

[0142] Start the first electric cylinder 51 again, and the slider on the first electric cylinder 51 moves toward the second assembly mechanism. When it moves to the top of the second positioning block 603, the piston rod of the sixth cylinder 52 extends to drive the first clamping cylinder 55 to descend. The first clamping cylinder 55 releases the front end cover rotor, and the piston rod of the sixth cylinder 52 retracts, and the front end cover rotor falls into the second accommodating chamber 604.

[0143] While the first assembly mechanism is working, the second motor 601 is started, and the output shaft of the second motor 601 drives the second carrier plate 602 to rotate. The slider on the second electric cylinder 621 moves, the piston rod of the seventh cylinder 623 descends, the second clamping jaw cylinder 626 takes the material from the corresponding vibration plate 611, the two clamping jaws of the second clamping jaw cylinder 626 are supported on the side wall of the cavity for installing the front end cover bearing 14, and the piston rod of the seventh cylinder 623 retracts.

[0144] The slider on the second electric cylinder 621 moves back, and the second clamping cylinder 626 drives the motor front end cover 13 to move to the second positioning block 603. The clamping claws of the second clamping cylinder 626 release the motor front end cover 13. The seventh cylinder 623 drives the second clamping cylinder 626 to rise, and the second supporting plate 602 rotates. The second positioning block 603 with the motor front end cover 13 is moved to the front end cover bearing 14 transfer assembly.

[0145] The slider on the third electric cylinder 631 moves, the piston rod of the eighth cylinder 633 descends, the three-claw cylinder 636 takes material from the corresponding vibration plate 611, the three clamping claws of the three-claw cylinder 636 are supported on the side wall of the inner ring of the front end cover bearing 14, and the piston rod of the eighth cylinder 633 retracts.

[0146] The slider on the third electric cylinder 631 moves back, and the three-claw cylinder 636 drives the front end cover bearing 14 to move into the front end cover 13 of the motor. The clamping claws of the three-claw cylinder 636 release the front end cover bearing 14, and the eighth cylinder 633 drives the three-claw cylinder 636 to rise, and the second supporting plate 602 rotates, and the front end cover 13 of the motor equipped with the front end cover bearing 14 moves to the assembly assembly of the elastic retaining ring 15 through the second positioning block 603.

[0147] The slider on the fourth electric cylinder 641 moves, the piston rod of the ninth cylinder 643 descends, the fixing seat 645 drives the tenth cylinder 648 to move downward, the top sleeve 649 absorbs the elastic retaining ring 15 from the corresponding vibration plate 611 through the suction force of the magnetic material, and the piston rod of the ninth cylinder 643 retracts.

[0148] The slider on the fourth electric cylinder 641 moves back, the top sleeve 649 drives the circlip 15 to move above the front end cover bearing 14, the piston rod of the tenth cylinder 648 retracts, and the top sleeve 649 embeds the circlip 15 into the front end cover 13 of the motor. The third clamping jaw cylinder 646 is started, and the third clamping jaw cylinder 646 clamps the top sleeve 649. When the piston rod of the tenth cylinder 648 retracts, the circlip 15 is acted upon by the clamping jaws on the third clamping jaw cylinder 646 and can be separated from the top sleeve 649. The second carrier plate 602 rotates, and the front end cover 13 of the motor with the circlip 15 installed is moved to the front end cover assembly through the second positioning block 603.

[0149] When the output shaft of the third motor 654 rotates forward, the threaded cooperation between the mounting seat 655 and the first screw rod 653 causes the mounting seat 655 to move downward. When the fourth clamping cylinder 657 moves to a suitable position, the fourth clamping cylinder 657 clamps the front end cover 13 of the motor. Then the output shaft of the third motor 654 is reversed. After the mounting seat 655 rises to a certain height, the flipping cylinder 656 is started, and the flipping cylinder 656 flips the front end cover 13 of the motor.

[0150] After the first translation mechanism places the front end cover rotor into the second positioning block 603 at the front end cover assembly assembly, the output shaft of the third motor 654 rotates forward again, and the mounting seat 655 descends, thereby being sleeved on the front end cover rotor. The fourth clamping cylinder 657 releases the front end cover 13 of the motor, and reset is achieved through the third motor 654 and the flip cylinder 656. After the front end cover 13 of the motor is assembled with the front end cover rotor, it is moved away from the front end cover assembly assembly and close to the second translation mechanism.

[0151] Start the fifth electric cylinder 72, the slider on the fifth electric cylinder 72 drives the eleventh air cylinder 74 to move, the eleventh air cylinder 74 drives the fifth clamping cylinder 77 through the sixteenth fixed plate 75 and the seventeenth fixed plate 76, when the fifth clamping cylinder 77 moves to the top of the parts assembled by the second assembly mechanism, the first electric cylinder 51 is closed.

[0152] The piston rod of the eleventh cylinder 74 extends out, the fifth clamping cylinder 77 moves downward, the fifth clamping cylinder 77 clamps the part, the piston rod of the eleventh cylinder 74 retracts, and the part is taken out from the second positioning block 603.

[0153] Start the fifth electric cylinder 72 again, and the slider on the fifth electric cylinder 72 moves toward the third assembly mechanism. When it moves to the specified position, the piston rod of the eleventh cylinder 74 extends to drive the fifth clamping cylinder 77 to descend, the fifth clamping cylinder 77 releases the part, and the piston rod of the eleventh cylinder 74 retracts, thereby moving the part from the second assembly mechanism to the third assembly mechanism.

[0154] The operator manually places the stator 16 on the third positioning block 803, starts the fourth motor 801, and the output shaft of the fourth motor 801 drives the third carrier plate 802 to rotate, and the third carrier plate 802 drives a plurality of third positioning blocks 803 bolted thereto to move. The second translation mechanism inserts the front end cover rotor with the motor front end cover 13 installed into the stator 16.

[0155] The retaining spring assembly mechanism located between the pressing mechanism and the second translation mechanism is used to install the second shaft retaining spring 12 on the rotating shaft 11. The installation method of the second shaft retaining spring 12 is the same as the installation method of the first shaft retaining spring 12.

[0156] When the third carrier plate 802 moves the parts to the pressing mechanism, the piston rod of the twelfth cylinder 811 extends to drive the push rod 812 to move downward, and the push rod 812 presses the front end cover rotor into the stator 16. When the piston rod of the twelfth cylinder 811 is reset, the push rod 812 rises, and the third carrier plate 802 rotates to move the pressed parts to the screw tightening mechanism.

[0157] The piston rod of the fifteenth cylinder 92 is retracted, so that the pressing block 93 can press the parts. The output shaft of the fifth motor 823 drives the second screw rod 822 to rotate, and the screw rod slider plate 824 slides horizontally through the thread of the second screw rod 822, thereby driving the carbon brush electric screwdriver 830 to move to the top of the assembly position.

[0158] The piston rod of the fourteenth cylinder 828 retracts, and the cutter clears the connection between the inclined tube 833 and the assembly hole 832. The screw feeder adds screws into the assembly hole 832 through the inclined tube 833, and the two clamping blocks 835 cooperate to clamp the screws in the assembly hole 832.

[0159] The piston rod of the fourteenth cylinder 828 extends, the electric screwdriver fixing block 829 moves downward, and the screwdriver blade of the carbon brush electric screwdriver 830 contacts the cross groove of the screw head. The piston rod of the thirteenth cylinder 825 extends, the screw machine hanging plate 827 moves downward, and the inclined outer walls of the two clamping blocks 835 are affected by the front end cover 13 of the motor, and the screws are loosened. Then the carbon brush electric screwdriver 830 can tighten the front end cover 13 and the rear end cover bracket 17 of the motor through the screws, and the parts after the screws are tightened are manually removed by the staff.

[0160] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circuit breaker motor assembly production line, characterized in that: The invention comprises a workbench (1), wherein the workbench (1) is provided with a first assembly mechanism for assembling a shaft retaining ring (12) onto a rotating shaft (11), a second assembly mechanism for assembling a motor front end cover (13), a front end cover bearing (14) and an elastic retaining ring (15) onto the rotating shaft (11), and a third assembly mechanism for assembling a rotor into a stator (16), assembling another shaft retaining ring (12) and bolting the motor front end cover (13) and a rear end cover bracket (17); The first assembly mechanism comprises a first bearing mechanism and a snap spring assembly mechanism, the first bearing mechanism comprises a first positioning block (403), and the first positioning block (403) is provided with a first accommodating cavity (404) for the front end cover rotor to be placed in; The retaining spring assembly mechanism comprises a mounting portion, wherein the mounting portion comprises a second bracket (430) connected to the workbench (1), a fourth cylinder (444) connected to the second bracket (430), a fifth fixing plate (431) connected to the piston rod of the fourth cylinder (444), a sixth fixing plate (432) connected to the fifth fixing plate (431), a fifth cylinder (433) connected to the sixth fixing plate (432), and a top block (434) connected to the piston rod of the fifth cylinder (433), the sixth fixing plate (432) is respectively connected to the seventh fixing plates (435) on two opposite sides, an eighth fixing plate (436) is connected between the two seventh fixing plates (435), and the The eighth fixed plate (436) is slidably connected to a retaining ring slider (437) on the side facing away from the sixth fixed plate (432), and the retaining ring slider (437) is located below the top block (434). The top ends of the two retaining ring sliders (437) on the opposite side walls are respectively provided with abutment inclined surfaces (438), and the distance between the two abutment inclined surfaces (438) gradually decreases from top to bottom. The two retaining ring sliders (437) are respectively connected to a retaining spring clamping plate (439), and the retaining spring clamping plate (439) is connected to a latch (440) for inserting into the mounting hole (19). A return compression spring (443) is supported between the retaining ring slider (437) and the corresponding seventh fixed plate (435); The second assembly mechanism comprises a second bearing mechanism and a motor front end cover (13) assembly mechanism, and the motor front end cover (13) assembly mechanism comprises a front end cover bearing (14) assembly component, a circlip (15) assembly component, and a front end cover assembly component; The second bearing mechanism comprises a second positioning block (603), and the second positioning block (603) is provided with a second accommodating cavity (604) for receiving the front end cover rotor or the motor front end cover (13); The front end cover bearing (14) assembly assembly comprises a cylinder support three (630) connected to the workbench (1), an eighth cylinder (633) arranged on the cylinder support three (630), a thirteenth fixing plate (634) connected to the piston rod of the eighth cylinder (633), a fourteenth fixing plate (635) connected to the thirteenth fixing plate (634), and a three-claw cylinder (636) connected to the fourteenth fixing plate (635), wherein the clamping claws of the three-claw cylinder (636) face the ground; The elastic retaining ring (15) assembly component includes a cylinder support four (640) connected to the workbench (1), a ninth cylinder (643) arranged on the cylinder support four (640), a fifteenth fixed plate (644) connected to the piston rod of the ninth cylinder (643), a fixed seat (645) connected to the fifteenth fixed plate (644), and a third clamping jaw cylinder (646) connected to the fixed seat (645); a bearing seat (647) is bolted to the fixed seat (645), the bearing seat (647) is higher than the third clamping jaw cylinder (646), the bearing seat (647) is connected to the tenth cylinder (648), the piston rod of the tenth cylinder (648) points to the ground, and the piston rod of the tenth cylinder (648) is connected to a magnetic top sleeve (649); The front end cover assembly assembly comprises a third bracket (650) connected to the workbench (1), and a first mounting plate (651) connected to the third bracket (650) and arranged vertically, the two ends of the first mounting plate (651) are respectively connected to second mounting plates (652), a vertically arranged first screw rod (653) is rotatably passed through between the two second mounting plates (652), a third motor (654) is connected to the second mounting plate (652), an output shaft of the third motor (654) is coaxially connected to one end of the first screw rod (653), a mounting seat (655) is sleeved on the first screw rod (653), the mounting seat (655) is threadedly matched with the first screw rod (653), the mounting seat (655) is tightly attached to the first mounting plate (651), and a fourth clamping jaw cylinder (657) is provided on the mounting seat (655); The third assembly mechanism includes a third bearing mechanism and a stator-rotor assembly mechanism, the stator-rotor assembly mechanism includes a press-fit mechanism and a screw-tightening mechanism, and the circlip assembly mechanism is further provided with a group next to the press-fit mechanism; The third bearing mechanism comprises a third positioning block (803), and the third positioning block (803) is provided with a placement groove (804) for placing the rear end cover bracket (17); The press-fitting mechanism comprises a cylinder fixing frame (810) connected to the workbench (1), a twelfth cylinder (811) connected to the cylinder fixing frame (810), the piston rod of the twelfth cylinder (811) pointing to the ground, and the piston rod of the twelfth cylinder (811) passing through the cylinder fixing frame (810) and connected to a push rod (812); The screw-tightening mechanism comprises a screw fixing frame (820) connected to the workbench (1), a thirteenth air cylinder (825) arranged on the screw fixing frame (820), an eighteenth fixing plate (826) fixedly connected to the piston rod of the thirteenth air cylinder (825), a screw machine hanging plate (827) connected to the eighteenth fixing plate (826), and a fourteenth air cylinder (828) connected to the screw machine hanging plate (827), wherein the piston rod of the fourteenth air cylinder (828) points to the ground and is connected to an electric screwdriver fixing block (829), and a carbon brush electric screwdriver (830) is installed on the electric screwdriver fixing block (829); The screw-tightening mechanism also includes a nozzle fixing block (831) connected to the screw machine hanging plate (827), the nozzle fixing block (831) is vertically provided with an assembly hole (832), the screwdriver blade of the carbon brush electric screwdriver (830) is slidably inserted into the assembly hole (832), and an inclined tube (833) is integrally formed on one side of the nozzle fixing block (831), the inclined tube (833) is communicated with the assembly hole (832), and the inclined tube (833) is connected to the screw machine hanging plate (827). The wire feeder comprises two fixing pins (834) fixedly inserted on the hand of the clamping nozzle fixing block (831), a clamping block (835) rotatably sleeved on the fixing pin (834), a clearance opening (836) is opened on the side of the clamping nozzle fixing block (831) opposite to the clamping block (835), one end of the clamping block (835) is rotatably connected in the clearance opening (836), and an elastic compression spring (837) is supported between the other end and the clamping nozzle fixing block (831).

2. The motor assembly production line for circuit breakers according to claim 1, characterized in that: The workbench (1) is also provided with a first translation mechanism, the first translation mechanism is located between the first assembly mechanism and the second translation mechanism, the second translation mechanism comprises a cylinder support (50) connected to the workbench (1), a first electric cylinder (51) connected to the cylinder support (50), and a sixth cylinder (52) arranged on a slider of the first electric cylinder (51), the piston rod of the sixth cylinder (52) points to the ground and is fixedly connected to a ninth fixed plate (53), the ninth fixed plate (53) is connected to a tenth fixed plate (54), and the tenth fixed plate (54) is connected to a first clamping jaw cylinder (55).

3. The motor assembly production line for circuit breakers according to claim 1, characterized in that: The workbench (1) is also provided with a second translation mechanism, the second translation mechanism is located between the second assembly mechanism and the third assembly mechanism, the second translation mechanism comprises a cylinder support five (71) connected to the workbench (1), a fifth electric cylinder (72) connected to the cylinder support five (71), an eleventh cylinder (74) arranged on a slider of the fifth electric cylinder (72), the piston rod of the eleventh cylinder (74) points to the ground and is fixedly connected to a sixteenth fixed plate (75), the sixteenth fixed plate (75) is connected to a seventeenth fixed plate (76), and the seventeenth fixed plate (76) is connected to a fifth clamping jaw cylinder (77).

4. The motor assembly production line for circuit breakers according to claim 1, characterized in that: The workbench (1) is also provided with a material pressing mechanism, which is arranged below the fourteenth cylinder (828). The material pressing mechanism includes a first support frame (91) connected to the workbench (1), and a fifteenth cylinder (92) bolted to the first support frame (91). The piston rod of the fifteenth cylinder (92) faces away from the ground, and the piston rod of the fifteenth cylinder (92) is connected to a pressure block (93) for pressing parts.

5. The motor assembly production line for circuit breakers according to claim 1, characterized in that: The workbench (1) is also provided with a lubrication mechanism, which is arranged next to the screw-tightening mechanism and comprises a second support frame (101) connected to the workbench (1) and a lubrication grease storage box (102) connected to the second support frame (101).

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