A high-profile motor rotor sub-assembly assembly tool and assembly method

Abstract

The present invention relates to the field of motor assembly technology, specifically to an assembly tool and assembly method for a high-profile motor rotor subassembly, comprising a base and a gantry fixedly mounted on the top of the base, a crossbeam fixedly connected between two vertical sections of the gantry, a vertical positioning mechanism and a clamping and fixing mechanism fixedly mounted on the crossbeam, a lower pressure plate located above the crossbeam slidably mounted between the two vertical sections of the gantry, a center positioning mechanism mounted at the bottom of the lower pressure plate, and a lifting mechanism driving the lower pressure plate to move up and down mounted on the gantry. The present invention aligns the rotating shaft and the iron core in the vertical direction through the linkage cooperation of the vertical positioning mechanism, the clamping and fixing mechanism and the center positioning mechanism, uses the vertical positioning mechanism to perform front and rear vertical positioning of the rotating shaft, and then clamps and fixes the upper and lower ends of the rotating shaft left and right by the second clamping block and the third clamping block to keep the rotating shaft in a vertical state.

Description

Technical Field

[0001] The invention relates to the technical field of motor assembly, and in particular to an assembly tool and an assembly method for a high-profile motor rotor subassembly. Background Art

[0002] The high-profile motor of a car seat is an important part of the car seat adjustment system. It adjusts the height and angle of the seat by controlling the rotation of the motor to provide passengers with a more comfortable and personalized riding experience. High-profile motors usually have the characteristics of small size, light weight, high efficiency, smooth operation, and low noise to meet the needs of car seat adjustment; the rotor subassembly is the most important component in the high-profile motor and is the part that rotates at high speed. When assembling the high-profile motor rotor subassembly, the part with the highest assembly precision and the highest assembly difficulty is the assembly of the iron core.

[0003] When assembling the iron core, the shaft needs to be inserted into the center hole of the iron core. The existing assembly method is to clamp and fix the iron core and the shaft respectively, and then move the shaft to insert into the iron core. Since the shaft and the iron core are fixed separately, the precision of the moving mechanism is high during the movement of the shaft. Once the moving mechanism deviates, the shaft is prone to offset, affecting the accuracy of the assembly of the shaft and the iron core. Secondly, since the shaft and the iron core are closely matched, during the plug-in process, once the shaft is offset or tilted, the shaft cannot be accurately inserted into the iron core, which easily leads to collision and damage between the shaft and the iron core, and even causes the shaft and the iron core to be directly scrapped. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a high-profile motor rotor sub-assembly assembly tool, including a base and a gantry fixedly installed on the top of the base, a crossbeam fixedly connected between the two vertical sections of the gantry, a vertical positioning mechanism and a clamping mechanism fixedly installed on the crossbeam, a lower pressure plate located above the crossbeam is installed between the two vertical sections of the gantry for sliding up and down, a center positioning mechanism is installed at the bottom of the lower pressure plate, and a lifting mechanism for driving the lower pressure plate to move up and down is installed on the gantry.

[0005] The clamping and fixing mechanism includes a first movable plate that is slidably installed up and down between the two vertical sections of the gantry and located between the lower pressure plate and the cross beam, a first clamping block and a second clamping block are respectively installed on the upper and lower sides of the first movable plate, and the first clamping block and the second clamping block are symmetrically arranged on the left and right, a third clamping block is arranged below the second clamping block and located below the cross beam, a clamping driving assembly that drives the first clamping block, the second clamping block, and the third clamping block to clamp is installed on the cross beam, a locking assembly is installed on the rear side of the second clamping block, and elastic telescopic rods that are symmetrically distributed on the left and right are installed between the first movable plate and the base.

[0006] The center positioning mechanism includes a plurality of inner support rollers uniformly distributed circumferentially at the bottom of the lower pressure plate, a movable component is installed inside the lower pressure plate, and an inner support component for driving the inner support rollers to expand outward is installed at the bottom of the movable component.

[0007] In one possible implementation, the vertical positioning mechanism includes a vertical plate fixedly installed in the middle of the front side of the cross beam, and C-shaped frames are symmetrically installed on the upper and lower sides of the vertical plate, and wedge blocks are slidably installed on the inner sides of the two vertical sections of the C-shaped frame, and the wedge blocks are symmetrically distributed on the left and right, and a return spring 1 is fixedly connected between the opposite sides of the left and right wedge blocks and the inner wall of the C-shaped frame. A pushing assembly is also installed on the front side of the vertical plate, and the pushing assembly includes a push plate slidably installed on the front side of the vertical plate, a first arc groove is provided on the front side of the push plate, and a return spring 2 is fixedly connected between the push plate and the vertical plate, and a plurality of first guide rods arranged in a rectangular shape are fixedly connected to the rear side of the push plate, and the rear end of the first guide rod slides through to the rear of the vertical plate.

[0008] In a possible implementation, the first movable plate is provided with first sliding grooves symmetrically distributed on the left and right, a first sliding block is installed inside the first sliding groove for sliding left and right, an L-shaped support rod is fixedly connected to the upper and lower sides of the first sliding block, the upper horizontal section of the L-shaped support rod is fixedly connected to the first clamping block, and the lower horizontal section of the L-shaped support rod is fixedly connected to the second clamping block, a through hole is provided in the middle of the first movable plate for the rotation shaft to pass through, a second rubber pad is fixedly installed at the center of the top of the first movable plate, and a circular hole of the same size as the through hole and on the same axis is reserved in the middle of the second rubber pad.

[0009] In one possible implementation, the second clamping block and the third clamping block have the same structure, and a second arc groove matching the outer wall of the rotating shaft is provided on the side of the second clamping block close to the rotating shaft, and a plurality of balls are evenly distributed on the surface of the second arc groove.

[0010] In one possible implementation, the clamping drive assembly includes a second slide groove opened on the front side of the beam, a two-way screw is rotatably installed inside the second slide groove, a second slider is symmetrically threaded on the two-way screw, the second slider is slidably installed in the second slide groove, a connecting rod is fixedly connected to the front side of the second slider, the bottom end of the connecting rod is fixedly connected to the third clamping block, the top end of the connecting rod passes through the first slide groove and extends to above the first movable plate, a guide groove is opened on the side of the connecting rod close to the center of the beam, the first slider is slidably installed in the guide groove, and a driving motor 1 for driving the two-way screw to rotate is fixedly installed on the left side of the gantry.

[0011] In one possible implementation, the locking assembly includes a fixed block fixedly installed on the rear side of the second clamping block on the right side, a lifting block is installed inside the fixed block for sliding up and down, a wedge-shaped block is fixedly connected to the left end of the lifting block, a return spring three is fixedly connected between the top of the lifting block and the inner wall of the fixed block, a pushing block is fixedly connected to the bottom of the lifting block, the bottom end of the pushing block slides through to the bottom of the fixed block, and a fixed groove frame is fixedly connected to the rear side of the second clamping block on the left side, and the fixed groove frame is engaged with the wedge-shaped block.

[0012] In one possible implementation, the movable component includes a movable groove opened at the bottom center of the lower pressure plate, a second movable plate is slidably installed inside the movable groove, and a reset spring four is fixedly connected between the top of the second movable plate and the inner wall of the movable groove.

[0013] In one possible implementation, the inner support assembly includes a second drive motor fixedly connected to the bottom of the movable groove, an outer sleeve is fixedly connected to the bottom of the outer shell of the second drive motor, an inner sleeve is slidably installed on the bottom of the outer sleeve, a first screw is fixedly connected to the bottom of the output shaft of the second drive motor, the first screw is threadedly connected to the inner sleeve, a plurality of upper oblique support rods are installed on the bottom of the outer sleeve for uniform circumferential rotation, one end of the upper oblique support rod away from the outer sleeve is coaxially connected to the inner support roller, a plurality of lower oblique support rods are installed on the bottom of the inner sleeve for uniform circumferential rotation, one end of the lower oblique support rod away from the inner sleeve is coaxially connected to the corresponding inner support roller.

[0014] In one possible implementation, the lifting mechanism includes a hydraulic telescopic cylinder fixedly installed on the top of the gantry, the telescopic shaft of the hydraulic telescopic cylinder passes through the bottom of the horizontal section of the gantry and is fixedly connected to the top of the lower pressure plate, the top of the lower pressure plate is fixedly connected with a second guide rod symmetrically distributed on the left and right, and the top end of the second guide rod slides and passes through the top of the horizontal section of the gantry.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention aligns the rotating shaft and the iron core in the vertical direction through the linkage cooperation of the vertical positioning mechanism, the clamping and fixing mechanism and the center positioning mechanism, and uses the vertical positioning mechanism to perform front and back vertical positioning of the rotating shaft, and then the upper and lower ends of the rotating shaft are clamped and fixed to the left and right by the second clamping block and the third clamping block to keep the rotating shaft in a vertical state. At the same time, the center hole of the iron core is internally supported and positioned by the center positioning mechanism, and then the iron core is externally clamped and fixed in cooperation with the first clamping block. The center hole of the iron core is ensured to be located directly above the rotating shaft through internal and external clamping, ensuring that the center holes of the rotating shaft and the iron core are aligned, and the clamping drive assembly is used to simultaneously drive the first clamping block, the second clamping block and the third clamping block to clamp and fix the iron core and the rotating shaft. The first clamping block and the second clamping block are connected together and move simultaneously, which can avoid the deviation of the iron core from the rotating shaft during movement, thereby improving the accuracy of assembly of the rotating shaft and the iron core.

[0016] 2. The present invention provides a locking assembly. When the second clamping block clamps the rotating shaft, the locking assembly can lock the left and right second clamping blocks together to prevent the second clamping blocks from loosening during assembly, thereby improving the firmness of clamping during assembly, ensuring the accuracy of assembling the rotating shaft and the iron core, and preventing the two from being damaged by collision due to deviation during assembly. When the rotating shaft and the iron core are assembled, the second clamping block just presses on the top C-shaped frame, and the C-shaped frame is used to push the pushing block upward, which can automatically unlock the wedge-shaped block and the fixed groove frame, making it convenient for the subsequent second clamping block to release the clamping and fixation of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a partial cross-sectional view of the vertical positioning mechanism of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping and fixing mechanism of the present invention from a first angle.

[0020] Figure 4 It is a second angle three-dimensional structural schematic diagram of the clamping and fixing mechanism of the present invention.

[0021] Figure 5 It is a front cross-sectional view of the movable plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the second clamping block of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the locking assembly of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the center positioning mechanism of the present invention.

[0025] Fig. 9 It is a left side sectional view of the inner support assembly of the present invention.

[0026] In the figure: 1, base; 11, first rubber pad; 2, gantry; 3, crossbeam; 4, vertical positioning mechanism; 41, vertical plate; 42, U-shaped frame; 43, wedge block; 44, return spring 1; 45, push plate; 46, return spring 2; 47, first guide rod; 5, clamping and fixing mechanism; 51, first movable plate; 511, first slide groove; 512, first slider; 513, L-shaped support rod; 514, second rubber pad; 52, first clamping block; 53, second clamping block; 531, ball bearing; 54, third clamping block; 55, clamping drive assembly; 551, second slide groove; 552, bidirectional lead screw; 553, second slider; 554, connecting rod; 555, guide groove; 55 6. Drive motor one; 56. Locking assembly; 561. Fixed block; 562. Lifting block; 563. Wedge-shaped block; 564. Return spring three; 565. Fixed slot frame; 566. Pushing block; 57. Elastic telescopic rod; 6. Lower pressure plate; 7. Center positioning mechanism; 71. Inner support roller; 72. Inner support assembly; 721. Drive motor two; 722. Outer sleeve; 723. Inner sleeve; 724. First lead screw; 725. Upper oblique support rod; 726. Lower oblique support rod; 73. Movable assembly; 731. Movable slot; 732. Second movable plate; 733. Return spring four; 8. Lifting mechanism; 81. Hydraulic telescopic cylinder; 82. Second guide rod; 9. Rotating shaft; 10. Iron core. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0028] See also Figure 1 A high-profile motor rotor sub-assembly assembly tool comprises a base 1 and a gantry 2 fixedly installed on the top of the base 1, a crossbeam 3 is fixedly connected between the two vertical sections of the gantry 2, a vertical positioning mechanism 4 and a clamping and fixing mechanism 5 are fixedly installed on the crossbeam 3, a lower pressure plate 6 located above the crossbeam 3 is installed between the two vertical sections of the gantry 2 for sliding up and down, a center positioning mechanism 7 is installed at the bottom of the lower pressure plate 6, a lifting mechanism 8 for driving the lower pressure plate 6 to move up and down is installed on the gantry 2, and a first rubber pad 11 located below the vertical positioning mechanism 4 is also installed on the top of the base 1, and the first rubber pad 11 plays a buffering and protective role on the rotating shaft 9 to prevent the rotating shaft 9 from being damaged during the downward pressing assembly process.

[0029] See also Figure 1 , Figure 3 and Figure 4The clamping and fixing mechanism 5 includes a first movable plate 51 which is slidably installed between the two vertical sections of the gantry 2 and located between the lower pressure plate 6 and the cross beam 3. The first clamping block 52 and the second clamping block 53 are respectively installed on the upper and lower sides of the first movable plate 51, and the first clamping block 52 and the second clamping block 53 are symmetrically arranged on the left and right. A third clamping block 54 located below the cross beam 3 is arranged below the second clamping block 53. A clamping driving component 55 for driving the first clamping block 52, the second clamping block 53, and the third clamping block 54 to clamp is installed on the cross beam 3. A locking component 56 is installed on the rear side of the second clamping block 53. Elastic telescopic rods 57 symmetrically distributed on the left and right are installed between the first movable plate 51 and the base 1.

[0030] The first clamp block 52 is used to clamp and fix the iron core 10, the second clamp block 53 and the third clamp block 54 are used to clamp and fix the upper and lower ends of the rotating shaft 9, and the elastic telescopic rod 57 plays a role of elastic support for the first movable plate 51. When the iron core 10 is placed on the first movable plate 51, the first movable plate 51 is still above the rotating shaft 9.

[0031] See also Figure 1 and Figure 8 The center positioning mechanism 7 includes a plurality of inner support rollers 71 uniformly distributed circumferentially at the bottom of the lower pressure plate 6. A movable component 73 is installed inside the lower pressure plate 6. An inner support component 72 for driving the inner support rollers 71 to expand outward is installed at the bottom of the movable component 73.

[0032] See also Figure 1 and Figure 2 The vertical positioning mechanism 4 includes a vertical plate 41 fixedly installed in the middle of the front side of the cross beam 3, and a C-shaped frame 42 is symmetrically installed on the upper and lower sides of the vertical plate 41. Wedge blocks 43 are slidably installed on the inner sides of the two vertical sections of the C-shaped frame 42. The wedge blocks 43 are symmetrically distributed on the left and right. The inclined surfaces of the left and right corresponding wedge blocks 43 are arranged opposite to each other and form an eight-shaped structure with the large-diameter end facing forward. A return spring 44 is fixedly connected between the opposite sides of the left and right wedge blocks 43 and the inner wall of the C-shaped frame 42, and a pushing component is also installed on the front side of the vertical plate 41.

[0033] See also Figure 1 and Figure 2 The pushing assembly includes a push plate 45 slidably installed on the front side of the vertical plate 41, a first arc groove is opened on the front side of the push plate 45, a return spring 2 46 is fixedly connected between the push plate 45 and the vertical plate 41, and a plurality of first guide rods 47 arranged in a rectangular shape are fixedly connected to the rear side of the push plate 45, and the rear end of the first guide rod 47 slides through to the rear of the vertical plate 41.

[0034] When assembling the rotating shaft 9, the rotating shaft 9 is pushed vertically backward into the upper and lower C-shaped frames 42. When pushing, the rotating shaft 9 first pushes the wedge blocks 43 to the left and right sides, so that the wedge blocks 43 completely slide into the inner walls of the C-shaped frames 42. When the rotating shaft 9 completely enters the C-shaped frames 42, the wedge blocks 43 pop out again under the action of the rebound force of the return spring 1 44, so that the wedge blocks 43 block the front side of the rotating shaft 9. At the same time, the rebound force of the return spring 2 46 is used to push the push plate 45 forward, so that the push plate 45 and the wedge blocks 43 clamp the rotating shaft 9 front and back. The first arc groove and the wedge blocks 43 symmetrically distributed on the left and right can also prevent the rotating shaft 9 from moving left and right, so that the rotating shaft 9 initially maintains a vertical state. The first guide rod 47 can guide the push plate 45, thereby improving the stability of the push plate 45 moving back and forth.

[0035] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 The first movable plate 51 is provided with first sliding grooves 511 symmetrically distributed on the left and right, and a first sliding block 512 is slidably installed inside the first sliding groove 511. L-shaped support rods 513 are fixedly connected to the upper and lower sides of the first sliding block 512. The horizontal section of the upper L-shaped support rod 513 is fixedly connected to the first clamping block 52, and the horizontal section of the lower L-shaped support rod 513 is fixedly connected to the second clamping block 53. A through hole is provided in the middle of the first movable plate 51 for the rotation shaft 9 to pass through, and the through hole is located directly below the center positioning mechanism 7. A second rubber pad 514 is fixedly installed at the center of the top of the first movable plate 51. A circular hole of the same size as the through hole and on the same axis is reserved in the middle of the second rubber pad 514, and a placement groove adapted to the iron core 10 is provided on the top of the second rubber pad 514.

[0036] When assembling the iron core 10, the iron core 10 is placed in the placement groove on the top of the second rubber pad 514. The placement groove can play a role in preliminary positioning of the iron core 10 and determine the approximate position of the iron core 10, so as to facilitate the subsequent lowering of the inner support assembly 72 into the center hole of the iron core 10. The second rubber pad 514 can play a role in buffering and protection when pressing down the iron core 10. The first slider 512 can simultaneously drive the first clamp block 52 and the second clamp block 53 to clamp and fix the iron core 10 and the rotating shaft 9 respectively, which is conducive to aligning the rotating shaft 9 with the center hole of the iron core 10.

[0037] See also Figure 1 , Figure 3 and Figure 6 A second arc groove matching with the outer wall of the rotating shaft 9 is provided on the side of the second clamping block 53 close to the rotating shaft 9, and a plurality of balls 531 are evenly distributed on the surface of the second arc groove in the circumferential direction. The second clamping block 53 and the third clamping block 54 have the same structure.

[0038] Based on the principle that two points determine a straight line, the upper and lower ends of the rotating shaft 9 can be clamped and fixed at the same time by the second clamp block 53 and the third clamp block 54, which can ensure that the rotating shaft 9 is in a vertical state and that the center holes of the rotating shaft 9 and the iron core 10 are on the same vertical axis, thereby improving the accuracy of assembly of the rotating shaft 9 and the iron core 10 and improving the firmness of fixing the rotating shaft 9. The ball 531 on the surface of the second arc groove can reduce the friction between the second clamp block 53 and the rotating shaft 9, thereby preventing the second clamp block 53 from causing wear to the rotating shaft 9 during the subsequent downward movement.

[0039] See also Figure 1 , Figure 3 and Figure 5 The clamping drive assembly 55 includes a second slide groove 551 opened on the front side of the beam 3, a bidirectional lead screw 552 is rotatably installed inside the second slide groove 551, and a second slider 553 is symmetrically threaded on the bidirectional lead screw 552. The second slider 553 is slidably installed in the second slide groove 551 left and right, and a connecting rod 554 is fixedly connected to the front side of the second slider 553. The bottom end of the connecting rod 554 is fixedly connected to the third clamping block 54, and the top of the connecting rod 554 passes through the first slide groove 511 and extends to the top of the first movable plate 51. A guide groove 555 is opened on the side of the connecting rod 554 close to the center of the beam 3, and the first slider 512 is slidably installed in the guide groove 555 up and down. A driving motor 556 for driving the bidirectional lead screw 552 to rotate is fixedly installed on the left side of the gantry 2.

[0040] When the rotating shaft 9 and the iron core 10 are clamped and fixed, the bidirectional lead screw 552 is driven to rotate by driving motor 1 556, and then the bidirectional lead screw 552 drives the left and right second sliders 553 to approach each other, and then the second slider 553 drives the left and right connecting rods 554 to approach each other, and the bottom end of the connecting rod 554 pushes the third clamping block 54 to clamp the bottom end of the rotating shaft 9, and the top end of the connecting rod 554 pushes the first slider 512 to move toward the direction close to the iron core 10, so that the first clamping block 52 clamps the iron core 10 and the second clamping block 53 clamps the top end of the rotating shaft 9; the guide groove 555 guides the first slider 512 up and down, and when the lower pressure plate 6 pushes the iron core 10 to move downward, the first slider 512 can slide downward along the guide groove 555.

[0041] See also Figure 1 , Figure 2 , Figure 4 and Figure 7The locking assembly 56 includes a fixed block 561 fixedly installed on the rear side of the second clamping block 53 on the right side, a lifting block 562 is slidably installed inside the fixed block 561, a wedge-shaped block 563 is fixedly connected to the left end of the lifting block 562, a return spring 564 is fixedly connected between the top of the lifting block 562 and the inner wall of the fixed block 561, a pushing block 566 is fixedly connected to the bottom of the lifting block 562, and the bottom end of the pushing block 566 slides through to the bottom of the fixed block 561, and a fixed groove frame 565 is fixedly connected to the rear side of the second clamping block 53 on the left side, and the fixed groove frame 565 is engaged with the wedge-shaped block 563.

[0042] In the initial state, the wedge-shaped block 563 and the fixed slot frame 565 are in a state of being separated from each other. When the second clamping block 53 clamps the rotating shaft 9, the second clamping block 53 drives the fixed slot frame 565 and the fixed block 561 to approach each other, so that the wedge-shaped block 563 is gradually inserted into the fixed slot frame 565. During the insertion process, the lower frame of the wedge-shaped block 563 pushes the inclined surface of the wedge-shaped block 563 to move upward, and the return spring 564 is compressed and contracted. When the wedge-shaped block 563 is completely moved to the left side of the fixed slot frame 565, the return spring 564 is used to return the wedge-shaped block 563 to the left side of the fixed slot frame 565. The rebound force of 64 pushes the lifting block 562 to move downward, so that the wedge-shaped block 563 is clamped on the fixed groove frame 565, which can prevent the two second clamping blocks 53 from separating and improve the firmness of the second clamping block 53. When the iron core 10 is fully assembled on the rotating shaft 9, the second clamping block 53 will move down to the top of the U-shaped frame 42. At this time, the U-shaped frame 42 is used to push the pushing block 566 to move upward, which can enable the lifting block 562 to drive the wedge-shaped block 563 to move upward, so that the wedge-shaped block 563 no longer clamps the fixed groove frame 565, which is convenient for the separation of the two second clamping blocks 53.

[0043] See also Figure 1 , Figure 8 and Fig. 9 The movable component 73 includes a movable groove 731 opened at the bottom center of the lower pressure plate 6, and a second movable plate 732 is slidably installed inside the movable groove 731. A return spring 733 is fixedly connected between the top of the second movable plate 732 and the inner wall of the movable groove 731.

[0044] See also Figure 1 , Figure 8 and Fig. 9The inner support assembly 72 includes a second drive motor 721 fixedly connected to the bottom of the movable groove 731, an outer sleeve 722 is fixedly connected to the bottom of the outer shell of the second drive motor 721, an inner sleeve 723 is slidably installed on the bottom of the outer sleeve 722, a first lead screw 724 is fixedly connected to the bottom of the output shaft of the second drive motor 721, the first lead screw 724 is threadedly connected to the inner sleeve 723, a plurality of upper oblique support rods 725 are installed on the bottom of the outer sleeve 722 for uniform circumferential rotation, one end of the upper oblique support rod 725 away from the outer sleeve 722 is coaxially connected to the inner support roller 71, a plurality of lower oblique support rods 726 are installed on the bottom of the inner sleeve 723 for uniform circumferential rotation, one end of the lower oblique support rod 726 away from the inner sleeve 723 is coaxially connected to the corresponding inner support roller 71.

[0045] After the iron core 10 is placed on the second rubber pad 514, the lifting mechanism 8 pushes the lower pressure plate 6 to move downward until it is flush with the top of the iron core 10. At this time, the inner support roller 71 is located in the center hole of the iron core 10, and then the first lead screw 724 is driven by the second driving motor 721 to rotate, so that the inner sleeve 723 moves upward along the outer sleeve 722, so that the bottom end of the lower oblique support rod 726 and the top end of the upper oblique support rod 725 are close to each other, thereby pushing the inner support roller 71 to move outward, and the inner support roller 71 is used to support and position the center hole of the iron core 10, so that the center hole of the iron core 10 and the rotating shaft 9 are on the same axis, improving the rotation shaft 9 and the iron core. The accuracy of the core 10 assembly; when the rotating shaft 9 is assembled into the center hole of the iron core 10, the rotating shaft 9 can push the inner sleeve 723 to move upward, and at the same time drive the inner support roller 71 to roll upward along the inner wall of the iron core 10. At this time, the second movable plate 732 will move upward along the movable groove 731 and compress the reset spring four 733, so that the inner sleeve 723 moves out from the center hole of the iron core 10 to avoid affecting the assembly of the rotating shaft 9 and the iron core 10. When the subsequent rotating shaft 9 no longer pushes the inner sleeve 723, the second movable plate 732 can move downward and reset under the action of the rebound force of the reset spring four 733, which is convenient for subsequent assembly work.

[0046] See also Figure 1 The lifting mechanism 8 includes a hydraulic telescopic cylinder 81 fixedly installed on the top of the gantry 2. The telescopic shaft of the hydraulic telescopic cylinder 81 passes through the bottom of the horizontal section of the gantry 2 and is fixedly connected to the top of the lower pressure plate 6. The top of the lower pressure plate 6 is fixedly connected with a second guide rod 82 symmetrically distributed on the left and right. The top end of the second guide rod 82 slides and passes through the top of the horizontal section of the gantry 2.

[0047] The hydraulic telescopic cylinder 81 pushes the lower pressure plate 6 downward, so that the lower pressure plate 6 can push the iron core 10 downward to be assembled with the rotating shaft 9. The second guide rod 82 can guide the lower pressure plate 6 to improve the stability of the lower pressure plate 6 moving up and down.

[0048] The present invention also provides a method for assembling a high-profile motor rotor subassembly, which specifically includes the following steps: S1: vertically place the rotating shaft 9 and align it with the opening at the front end of the C-shaped frame 42, then move the rotating shaft 9 backward, and push the rotating shaft 9 into the C-shaped frame 42. During the pushing process, the rotating shaft 9 will push the wedge block 43 to the left and right sides, so that the wedge block 43 retracts into the inner wall of the C-shaped frame 42. When the rotating shaft 9 completely enters the C-shaped frame 42, the wedge block 43 pops out again under the action of the rebound force of the reset spring 1 44 and blocks the front side of the rotating shaft 9. At the same time, the reset spring 2 46 pushes the push plate 45 forward, clamping the rotating shaft 9 between the push plate 45 and the wedge block 43.

[0049] S2: Place the iron core 10 into the placement groove at the top of the second rubber pad 514, and then the hydraulic telescopic cylinder 81 pushes the lower pressure plate 6 downward until it just contacts the top of the iron core 10. At this time, the inner support roller 71 is in the center hole of the iron core 10, and the first lead screw 724 is driven by the second driving motor 721 to rotate, so that the inner sleeve 723 moves upward along the outer sleeve 722, so that the bottom end of the lower oblique support rod 726 and the top end of the upper oblique support rod 725 are close to each other, thereby pushing the inner support roller 71 to move outward, and using the inner support roller 71 to perform internal support positioning on the center hole of the iron core 10.

[0050] S3: The bidirectional lead screw 552 is driven to rotate by driving motor 1 556, so that the second slider 553 moves toward the center of the beam 3, and then the second slider 553 drives the connecting rod 554 to move toward the center of the beam 3. The bottom end of the connecting rod 554 drives the third clamping block 54 to clamp and fix the bottom of the rotating shaft 9. The top end of the connecting rod 554 pushes the first slider 512 to move toward the center of the beam 3, so that the first clamping block 52 clamps and fixes the iron core 10 to the left and right, and at the same time, the second clamping block 53 clamps and fixes the top of the rotating shaft 9.

[0051] S4: When the second clamping block 53 clamps and fixes the rotating shaft 9, the second clamping block 53 drives the fixing block 561 and the fixing slot frame 565 to approach each other, and moves the wedge-shaped block 563 to be inserted into the left side of the fixing slot frame 565. At this time, the rebound force of the reset spring 3 564 is used to push the lifting block 562 downward, so that the wedge-shaped block 563 and the fixing slot frame 565 are clamped together to prevent the two second clamping blocks 53 from separating.

[0052] S5: The hydraulic telescopic cylinder 81 pushes the lower pressure plate 6 to continue to move downward, and then the lower pressure plate 6 pushes the iron core 10 to move downward, and the iron core 10 is mounted on the top of the rotating shaft 9. During the downward movement, the iron core 10 will push the first movable plate 51 to move downward together, so that the elastic telescopic rod 57 is compressed. During the downward movement of the first movable plate 51, the first clamping block 52 and the second clamping block 53 will be driven to move downward together. At this time, the second clamping block 53 will slide downward while clamping the rotating shaft 9. When the top of the rotating shaft 9 contacts the bottom of the inner sleeve 723, the rotating shaft 9 can prevent the inner sleeve 723 from continuing to move downward. At this time, as the lower pressure plate 6 continues to move downward, the reset spring four 733 will be compressed, so that the inner support roller 71 and the inner support assembly 72 are pushed out from the center hole of the iron core 10 and enter the movable groove 731, until the top of the rotating shaft 9 is exposed from the top of the center hole of the iron core 10 to complete the assembly.

[0053] S6: When the shaft 9 and the core 10 are assembled, the second clamping block 53 just moves down to contact the top of the upper C-shaped frame 42. At this time, the C-shaped frame 42 will push the pushing block 566 back into the inside of the fixed block 561, and then the fixed block 561 pushes the lifting block 562 and the wedge-shaped block 563 to move upward, so that the wedge-shaped block 563 and the fixed slot frame 565 are unlocked.

[0054] S7: The bidirectional lead screw 552 is driven to rotate in the opposite direction by driving motor 1 556, and then the bidirectional lead screw 552 drives the second slider 553 to move away from the center of the beam 3, and then the second slider 553 drives the connecting rod 554 to move away from the center of the beam 3, and then the connecting rod 554 drives the third clamp 54 and the first slider 512 to move away from the center of the beam 3, and the first slider 512 drives the first clamp 52 and the second clamp 53 to move together, so that the first clamp 52, the second clamp 53 and the third clamp 54 simultaneously release the clamping of the iron core 10 and the rotating shaft 9.

[0055] S8: The lower pressure plate 6 is driven to move upward by the hydraulic telescopic cylinder 81 so that the lower pressure plate 6 no longer presses the iron core 10. At this time, the elastic telescopic rod 57 will push the first movable plate 51 to move upward and reset, and the rotating shaft 9 will move with the iron core 10. Finally, the iron core 10 and the rotating shaft 9 are moved upward and taken out from the first movable plate 51.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-profile motor rotor subassembly assembly tool, comprising a base (1) and a gantry (2) fixedly mounted on the top of the base (1), characterized in that: A crossbeam (3) is fixedly connected between the two vertical sections of the gantry (2); a vertical positioning mechanism (4) and a clamping and fixing mechanism (5) are fixedly installed on the crossbeam (3); a lower pressing plate (6) located above the crossbeam (3) is slidably installed between the two vertical sections of the gantry (2); a center positioning mechanism (7) is installed at the bottom of the lower pressing plate (6); and a lifting mechanism (8) for driving the lower pressing plate (6) to move up and down is installed on the gantry (2); The clamping and fixing mechanism (5) comprises a first movable plate (51) which is slidably installed between two vertical sections of the gantry (2) and is located between the lower pressure plate (6) and the cross beam (3); a first clamping block (52) and a second clamping block (53) are respectively installed on the upper and lower sides of the first movable plate (51); the first clamping block (52) and the second clamping block (53) are symmetrically arranged on the left and right; a third clamping block (54) is arranged below the second clamping block (53) and is located below the cross beam (3); a clamping driving component (55) for driving the first clamping block (52), the second clamping block (53) and the third clamping block (54) to clamp is installed on the cross beam (3); a locking component (56) is installed on the rear side of the second clamping block (53); and elastic telescopic rods (57) symmetrically distributed on the left and right are installed between the first movable plate (51) and the base (1); The center positioning mechanism (7) comprises a plurality of inner support rollers (71) uniformly distributed in the circumferential direction at the bottom of the lower pressure plate (6); a movable component (73) is installed inside the lower pressure plate (6); and an inner support component (72) for driving the inner support rollers (71) to expand outward is installed at the bottom of the movable component (73); The vertical positioning mechanism (4) comprises a vertical plate (41) fixedly mounted at the middle of the front side of the cross beam (3), a U-shaped frame (42) being symmetrically mounted on the upper and lower sides of the vertical plate (41), wedge blocks (43) being slidably mounted on the inner sides of the two vertical sections of the U-shaped frame (42), the wedge blocks (43) being symmetrically distributed on the left and right sides, and a return spring (44) being fixedly connected between the opposite sides of the left and right wedge blocks (43) and the inner wall of the U-shaped frame (42), the vertical plate (41) 1) is also provided with a pushing assembly on the front side thereof, the pushing assembly comprising a pushing plate (45) slidably mounted on the front side of the vertical plate (41), a first arc-shaped groove being provided on the front side of the pushing plate (45), a second return spring (46) being fixedly connected between the pushing plate (45) and the vertical plate (41), a plurality of first guide rods (47) arranged in a rectangular shape being fixedly connected to the rear side of the pushing plate (45), the rear ends of the first guide rods (47) slidingly penetrating to the rear of the vertical plate (41); The first movable plate (51) is provided with first sliding grooves (511) symmetrically distributed on the left and right sides, a first sliding block (512) is slidably installed inside the first sliding groove (511), an L-shaped support rod (513) is fixedly connected to the upper and lower sides of the first sliding block (512), the horizontal section of the upper L-shaped support rod (513) is fixedly connected to the first clamping block (52), and the horizontal section of the lower L-shaped support rod (513) is fixedly connected to the second clamping block (53), a through hole is provided in the middle of the first movable plate (51) for the rotation shaft (9) to pass through, a second rubber pad (514) is fixedly installed at the center of the top of the first movable plate (51), and a circular hole with the same size as the through hole and on the same axis is reserved in the middle of the second rubber pad (514); The clamping drive assembly (55) comprises a second slide groove (551) provided on the front side of the cross beam (3); a bidirectional lead screw (552) is rotatably installed inside the second slide groove (551); a second slider (553) is symmetrically threadedly connected to the bidirectional lead screw (552); the second slider (553) is slidably installed in the second slide groove (551) left and right; a connecting rod (554) is fixedly connected to the front side of the second slider (553); the bottom end of the connecting rod (554) is fixedly connected to the third clamping block (54); the top end of the connecting rod (554) passes through the first slide groove (511) and extends to the top of the first movable plate (51); a guide groove (555) is provided on one side of the connecting rod (554) close to the center of the cross beam (3); the first slider (512) is slidably installed in the guide groove (555) up and down; a driving motor 1 (556) for driving the bidirectional lead screw (552) to rotate is fixedly installed on the left side of the gantry (2).

2. The high-profile motor rotor subassembly assembly tool according to claim 1, characterized in that: A second arc-shaped groove matching the outer wall of the rotating shaft (9) is provided on a side of the second clamping block (53) close to the rotating shaft (9), and a plurality of balls (531) are evenly distributed on the surface of the second arc-shaped groove in a circumferential direction. The second clamping block (53) and the third clamping block (54) have the same structure.

3. The high-profile motor rotor subassembly assembly tool according to claim 1, characterized in that: The locking assembly (56) comprises a fixed block (561) fixedly mounted on the rear side of the second clamping block (53) on the right side; a lifting block (562) is slidably mounted inside the fixed block (561) up and down; a wedge-shaped clamping block (563) is fixedly connected to the left end of the lifting block (562); a return spring (564) is fixedly connected between the top of the lifting block (562) and the inner wall of the fixed block (561); a pushing block (566) is fixedly connected to the bottom of the lifting block (562); the bottom end of the pushing block (566) slides through to the bottom of the fixed block (561); a fixed groove frame (565) is fixedly connected to the rear side of the second clamping block (53) on the left side; the fixed groove frame (565) is engaged with the wedge-shaped clamping block (563).

4. The high-profile motor rotor subassembly assembly tool according to claim 1, characterized in that: The movable assembly (73) comprises a movable groove (731) provided at the bottom center of the lower pressure plate (6), a second movable plate (732) being slidably mounted up and down inside the movable groove (731), and a return spring (733) being fixedly connected between the top of the second movable plate (732) and the inner wall of the movable groove (731).

5. The high-profile motor rotor subassembly assembly tool according to claim 4 is characterized in that: The inner support assembly (72) includes a second drive motor (721) fixedly connected to the bottom of the movable groove (731); an outer sleeve (722) is fixedly connected to the bottom of the outer shell of the second drive motor (721); an inner sleeve (723) is slidably installed on the bottom of the outer sleeve (722); a first lead screw (724) is fixedly connected to the bottom of the output shaft of the second drive motor (721); the first lead screw (724) is threadedly connected to the inner sleeve (723); a plurality of upper inclined support rods (725) are uniformly rotated at the bottom of the outer sleeve (722); one end of the upper inclined support rod (725) away from the outer sleeve (722) is coaxially connected to the inner support roller (71); a plurality of lower inclined support rods (726) are uniformly rotated at the bottom of the inner sleeve (723); one end of the lower inclined support rod (726) away from the inner sleeve (723) is coaxially connected to the corresponding inner support roller (71).

6. The high-profile motor rotor subassembly assembly tool according to claim 1, characterized in that: The lifting mechanism (8) comprises a hydraulic telescopic cylinder (81) fixedly mounted on the top of the gantry (2); the telescopic shaft of the hydraulic telescopic cylinder (81) passes through the bottom of the horizontal section of the gantry (2) and is fixedly connected to the top of the lower pressure plate (6); the top of the lower pressure plate (6) is fixedly connected to a second guide rod (82) symmetrically distributed on the left and right; the top of the second guide rod (82) slides through the top of the horizontal section of the gantry (2).

7. A method for assembling a high-profile motor rotor subassembly, characterized in that: The high-profile motor rotor subassembly assembly tooling as claimed in claim 1 is used to complete the process. The following steps are involved: S1: vertically pushing the rotating shaft (9) into the vertical positioning mechanism (4), and using the vertical positioning mechanism (4) to vertically calibrate the rotating shaft (9); S2: The iron core (10) is placed on the first movable plate (51), and then the lifting mechanism (8) pushes the lower pressing plate (6) to move downward until it just contacts the top of the iron core (10). At this time, the inner support roller (71) is located in the center hole of the iron core (10), and the inner support assembly (72) pushes the inner support roller (71) to move outward to internally support and position the center hole of the iron core (10); S3: The driving assembly (55) drives the first clamping block (52), the second clamping block (53), and the third clamping block (54) to move in a direction close to the center of the rotating shaft (9), so that the first clamping block (52) clamps and fixes the iron core (10) on the left and right, and the second clamping block (53) and the third clamping block (54) clamp and fix the upper and lower ends of the rotating shaft (9); S4: After the second clamping blocks (53) clamp and fix the rotating shaft (9), the locking assembly (56) automatically locks the two second clamping blocks (53) together to prevent the two second clamping blocks (53) from being separated; S5: The lower pressure plate (6) is pushed to continue to move downward by the lifting mechanism (8), and then the lower pressure plate (6) pushes the iron core (10) to move downward, and the iron core (10) is mounted on the top of the rotating shaft (9). During the downward movement, the iron core (10) pushes the first movable plate (51), the first clamping block (52) and the second clamping block (53) to move downward together. When the top of the rotating shaft (9) contacts the inner support assembly (72), the rotating shaft (9) blocks the inner support assembly (72) from continuing to move downward. At this time, as the lower pressure plate (6) continues to move downward, the inner support roller (71) and the inner support assembly (72) are pushed out of the center hole of the iron core (10) until the top of the rotating shaft (9) is exposed from the top of the center hole of the iron core (10) to complete the assembly; S6: When the rotating shaft (9) and the iron core (10) are assembled, the second clamping block (53) just moves down to contact the top of the vertical positioning mechanism (4), and the vertical positioning mechanism (4) pushes the locking component (56) to unlock; S7: driving the first clamping block (52), the second clamping block (53), and the third clamping block (54) to move in a direction away from the center of the rotating shaft (9) by means of the driving assembly (55), so that the first clamping block (52), the second clamping block (53), and the third clamping block (54) simultaneously release the clamping of the iron core (10) and the rotating shaft (9); S8: The lower pressing plate (6) is driven to move upward by the lifting mechanism (8), so that the lower pressing plate (6) no longer presses the iron core (10). At this time, the elastic telescopic rod (57) pushes the first movable plate (51) to move upward and reset. Since the rotating shaft (9) and the iron core (10) are interference fit, the rotating shaft (9) moves with the iron core (10). Finally, the iron core (10) and the rotating shaft (9) are moved upward and taken out from the first movable plate (51).

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