Motor press-fitting mechanism and press-fitting method thereof

Abstract

The present invention discloses a motor press-fitting mechanism and a press-fitting method thereof, and relates to the technical field of motor assembly. The motor press-fitting mechanism includes a support platform, a press-fitting fixing assembly for assembling a motor tooth box, and an extrusion bending assembly for bending and clamping the fixed legs on both sides of the lower end of the motor on the tooth box; the press-fitting fixing assembly includes a vertically arranged push cylinder and a material seat connected to the axial end of the push cylinder; the extrusion bending assembly includes a bending drive cylinder, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the support platform is provided with a through hole for the motor to be press-fitted to pass through, and a limit seat is fastened above the through hole, and the limit seat is located directly above the material seat, and the limit seat is located directly below the axial end of the bending drive cylinder. Therefore, the motor to be press-fitted is assembled and bent and fixed by the motor press-fitting mechanism, and the structure is compact and the operation is convenient and quick.

Description

Technical Field

[0001] The invention relates to the field of motor assembly technology, and in particular to a motor press-fitting mechanism and a press-fitting method thereof. Background Art

[0002] Motors are widely used in the automotive field. For example, motors are used in car seat adjustment, car window glass adjustment, and car sunroof adjustment. Different types of motors are needed to adjust different car parts.

[0003] At present, most of the motor press-fitting cannot be fully automated. Although there are some semi-automatic motor press-fitting equipment on the market, although these motor assembly equipment can realize automation in some press-fitting steps, manual assistance is still required during the motor press-fitting process. The labor cost is high and the operation efficiency is low, which is not conducive to the long-term development of the enterprise. On the other hand, the current existing motor press-fitting process is mostly completed by the cooperation of multiple equipment. Different equipment is used for motor press-fitting, base bending and movement. This will increase the cost. At the same time, multiple equipment occupies a large space, which increases the site investment cost and cannot meet the requirements of large-scale production. Therefore, how to solve the above technical problems is a technical problem that needs to be solved urgently in the industry. Summary of the invention

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a motor press-fitting mechanism and a press-fitting method thereof, which uses a press-fitting fixing component to press the motor into a gear box for press-fitting and fixing, and then uses an extrusion and bending component to bend and clamp the fixing legs on both sides of the lower end of the motor on the gear box to achieve assembly and fixation of the motor and the gear box, and achieves both press-fitting and bending and fixing functions through one mechanism, with a compact structure and convenient and quick operation.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The motor press-fitting mechanism includes a support platform, a press-fitting fixing assembly for assembling the motor gear box, and an extrusion bending assembly for bending and clamping the fixing legs on both sides of the lower end of the motor on the gear box;

[0007] The support platform is provided with a through hole for the motor to be press-fitted to pass through;

[0008] The press-fitting fixing assembly includes a vertically arranged push cylinder, a material seat and a limit seat, the material seat is connected to the shaft end of the push cylinder, the limit seat is fastened to the upper end of the through hole, the limit seat is located directly above the material seat, and the material seat drives the upper end of the motor to be pressed on the material seat to move up and down under the drive of the push cylinder and detachably abut against the limit seat;

[0009] The extrusion bending assembly includes a bending drive cylinder, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The bending drive cylinder is vertically installed on a support table. The above-mentioned limit seat is located directly below the axial end of the bending drive cylinder. The upper ends of the first connecting rod and the second connecting rod are hinged to the axial end of the bending drive cylinder. The middle of the third connecting rod and the middle of the fourth connecting rod are respectively pivotally connected to the support table. The upper end of the third connecting rod is hinged to the lower end of the first connecting rod, the upper end of the fourth connecting rod is hinged to the lower end of the second connecting rod, the lower end of the first connecting rod and the The lower ends of the two connecting rods can be separated or closed with respect to the axial end of the bending drive cylinder, and the lower ends of the third connecting rod and the fourth connecting rod can be close to or away from each other under the linkage of the first connecting rod and the second connecting rod. The lower ends of the third connecting rod and the fourth connecting rod are integrally provided with a bending extrusion portion, and the bending extrusion portion of the third connecting rod and the bending extrusion portion of the fourth connecting rod are opposite to each other. The above-mentioned material seat is located below the support platform, and the material seat can be moved up and down under the drive of the push cylinder and is located between the bending extrusion portion of the third connecting rod and the bending extrusion portion of the fourth connecting rod.

[0010] Preferably, a spring is vertically arranged in the limit seat to prevent the motor gear box from rigidly colliding during the press-fitting process, and the lower end of the spring is fastened to a press-fitting shaft corresponding to the shaft end of the motor to be press-fitted.

[0011] Preferably, a first extrusion block is fastened to the end of the bent extrusion portion of the third connecting rod, and a second extrusion block is fastened to the end of the bent extrusion portion of the fourth connecting rod. Both the first extrusion block and the second extrusion block are provided with grooves for limiting the position of the fixed feet of the motor to be pressed, and the grooves of the first extrusion block and the second extrusion block are opposite to each other.

[0012] Preferably, the motor press-fitting mechanism further comprises a guiding device for moving the first extrusion block and the second extrusion block in a horizontal direction.

[0013] Preferably, the guiding device comprises a sliding rail, a first sliding block and a second sliding block. The sliding rail is fixedly mounted on the lower surface of the support platform. The first sliding block and the second sliding block are respectively and correspondingly mounted on both ends of the sliding rail. The first sliding block is tightly connected to the first extrusion block, and the second sliding block is tightly connected to the second extrusion block.

[0014] Preferably, the guide devices are in two groups, and the two groups of guide devices are symmetrically fastened to the front and rear ends of the extrusion block.

[0015] Preferably, a rotating shaft is longitudinally arranged at the axial end of the bending drive cylinder, and the upper ends of the first connecting rod and the second connecting rod are respectively hinged to the rotating shaft, and the first connecting rod and the second connecting rod can be separated or closed relative to the rotating shaft.

[0016] Preferably, the support platform comprises a first support portion for supporting the bending drive cylinder and a second support portion for motor press-fitting and bending, and the first support portion is integrally installed above the second support portion.

[0017] Preferably, the first support part and the second support part both include a support plate and support rods fastened to the four corners of the lower end of the support plate, the axial end of the bending drive cylinder vertically penetrates the support plate of the first support part, and the middle of the third connecting rod and the middle of the fourth connecting rod are respectively pivotally connected to the support plate of the second support part.

[0018] The press-fitting method of the motor press-fitting mechanism comprises the following steps:

[0019] First, the push cylinder drives the material seat at the end of the push cylinder shaft to move upward, and the motor gear box to be pressed on the material seat moves upward with the material seat, and the upper end of the motor to be pressed is pressed on the limit seat, so that the motor and the gear box are tightly assembled together;

[0020] Second, the shaft end of the bending drive cylinder extends downward, driving the angle between the upper ends of the first connecting rod and the second connecting rod to increase, and the bending and extruding parts of the third connecting rod and the fourth connecting rod are moved closer to each other under the linkage of the first connecting rod and the second connecting rod, so that the fixed legs on both sides of the lower end of the motor to be pressed are bent and clamped on the gear box;

[0021] Third, when the axial end of the bending drive cylinder retracts upward, the angle between the first connecting rod and the second connecting rod becomes smaller, and the first connecting rod, the second connecting rod and the bending extrusion parts of the third connecting rod and the fourth connecting rod are linked to separate from each other, and the pressed motor gear box assembly is loosened.

[0022] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the motor is pressed into the gear box for press-fitting and fixing through the press-fitting and fixing assembly, and then the fixing legs on both sides of the lower end of the motor are bent and clamped on the gear box through the extrusion and bending assembly to realize the assembly of the motor and the gear box and fixation to each other. The two functions of press-fitting and bending and fixing are realized by one mechanism, the structure is compact, and the operation is convenient and quick. The motor gear box to be press-fitted is assembled together by the pushing cylinder combined with the limit seat, and fully automated operation is adopted with high assembly precision.

[0023] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the motor press-fitting mechanism of the present invention;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the motor press-fitting mechanism of the present invention from another perspective;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the extrusion bending assembly of the present invention from a first viewing angle;

[0027] Figure 4 It is a cross-sectional view of the extrusion bending assembly of the present invention;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of the extrusion bending assembly of the present invention from a second viewing angle;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the extrusion bending assembly of the present invention from a third viewing angle;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the extrusion bending component of the present invention from the fourth viewing angle.

[0031] Description of the accompanying drawings:

[0032] In the figure: 10, press-fitting fixing assembly; 11, push cylinder; 12, material seat; 13, limit seat; 131, spring; 132, press-fitting shaft; 20, extrusion bending assembly; 21, support table; 211 first support part; 212, second support part; 213, support plate; 214, support rod; 215, through hole; 22, bending drive cylinder; 221, rotating shaft; 23, first connecting rod; 24, second connecting rod; 25, third connecting rod; 251, bending extrusion part; 252, first extrusion block; 253, groove; 26, fourth connecting rod; 261, bending extrusion part; 262, second extrusion block; 263, groove; 27, guide device; 271, sliding guide rail; 272, first sliding block; 273, second sliding block. DETAILED DESCRIPTION

[0033] The present invention Figures 1 to 7 As shown, a motor press-fitting mechanism and a press-fitting method thereof include a support platform 21, a press-fitting fixing assembly 10 for assembling a motor gear box, and an extrusion bending assembly 20 for bending and clamping the fixing legs on both sides of the lower end of the motor on the gear box.

[0034] The support platform 21 is provided with a through hole 215 for the motor to be press-fitted to pass through.

[0035] The press-fitting fixing assembly 10 includes a vertically arranged pushing cylinder 11, a material seat 12 and a limit seat 13. The material seat 12 is connected to the axial end of the pushing cylinder 11, and the limit seat 13 is fastened to the upper end of the through hole 215. The limit seat 13 is located directly above the material seat 12. Driven by the pushing cylinder 11, the material seat 12 drives the upper end of the motor to be pressed on the material seat 12 to move up and down and detachably abut against the limit seat 13; a spring 131 is vertically arranged in the limit seat 13 to prevent the motor gear box from rigidly colliding during the press-fitting process, and the lower end of the spring 131 is fastened to a press-fitting shaft 132, which corresponds to the axial end of the motor; the spring 131 is arranged to avoid the rigid collision of the motor to be pressed during the press-fitting process; the pushing cylinder 11 drives the material seat 12 to move upward, and the motor gear box on the material seat 12 moves upward to abut the limit seat 13, so that the motor gear box is pressed together.

[0036] The extrusion bending assembly 20 includes a bending drive cylinder 22, a first connecting rod 23, a second connecting rod 24, a third connecting rod 25 and a fourth connecting rod 26. The bending drive cylinder 22 is vertically installed on the support platform 21. The above-mentioned limit seat 13 is located directly below the axial end of the bending drive cylinder 22. The upper ends of the first connecting rod 23 and the second connecting rod 24 are hinged to the axial end of the bending drive cylinder 22. A rotating shaft 221 is longitudinally arranged at the axial end of the bending drive cylinder 22. The upper ends of the above-mentioned first connecting rod 23 and the second connecting rod 24 are respectively hinged to the rotating shaft 221. The first connecting rod 23 and the second connecting rod 24 can be separated from or closed to each other relative to the rotating shaft 221; the middle of the third connecting rod 25 and the middle of the fourth connecting rod 26 are respectively hinged to the support platform 21. The upper end of the third connecting rod 25 is hinged to the lower end of the first connecting rod 23, and the upper end of the fourth connecting rod 26 is hinged to the lower end of the second connecting rod 24. The lower end of the first connecting rod 23 and the lower end of the second connecting rod 24 can be separated or closed relative to the axial end of the bending drive cylinder 22. The lower ends of the third connecting rod 25 and the fourth connecting rod 26 can be close to or away from each other under the linkage of the first connecting rod 23 and the second connecting rod 24. The lower ends of the third connecting rod 25 and the fourth connecting rod 26 are both integrally provided with a bending extrusion portion. The bending extrusion portion 251 of the third connecting rod 25 and the bending extrusion portion 261 of the fourth connecting rod 26 are opposite to each other. The above-mentioned material seat 12 is located below the support platform 21. The material seat 12 can be moved up and down under the drive of the push cylinder 11. The bending and extruding portion 251 of the third connecting rod 25 and the bending and extruding portion 261 of the fourth connecting rod 26 are located between the bending and extruding portion 251 of the third connecting rod 25 and the bending and extruding portion 261 of the fourth connecting rod 26; the axial end of the bending driving cylinder 22 extends downward to drive the first connecting rod 23 and the upper end of the second connecting rod 24 to increase the angle between them, and the bending and extruding portions 251 and 261 of the third connecting rod 25 and the fourth connecting rod 26 are moved closer to each other under the linkage of the first connecting rod 23 and the second connecting rod 24, and the fixed legs on both sides of the lower end of the motor are bent and clamped on the gear box to realize the assembly of the motor and the gear box and fix them to each other. When the axial end of the bending driving cylinder 22 is retracted upward, the angle between the first connecting rod 23 and the second connecting rod 24 becomes smaller, and the first connecting rod 23 and the second connecting rod 24 are linked to the bending and extruding portions 251 of the third connecting rod 25 and the fourth connecting rod 26. 261 are separated from each other to loosen the motor gear box assembly; the support platform 21 includes a first support part 211 for supporting the bending drive cylinder 22 and a second support part 212 for motor press-fitting and bending, the first support part 211 is integrally installed above the second support part 212, the first support part 211 and the second support part 212 both include a support plate 213 and support rods 214 fastened to the four corners of the lower end of the support plate 213, the axial end of the bending drive cylinder 22 vertically penetrates the support plate 213 of the first support part 211, the middle of the third connecting rod 25 and the fourth connecting rod 26 are respectively pivotally connected to the support plate 213 of the second support part 212, so that the overall structure is more compact and the space utilization is improved.

[0037] The first extrusion block 252 is fastened to the end of the bent extrusion portion 251 of the third connecting rod 25, and the second extrusion block 262 is fastened to the end of the bent extrusion portion 261 of the fourth connecting rod 26. The first extrusion block 252 and the second extrusion block 262 are both provided with grooves for limiting the position of the motor fixing foot to be pressed, and the groove 253 of the first extrusion block 252 and the groove 263 of the second extrusion block 262 are opposite to each other; in this way, the motor fixing foot can be limited during the extrusion process to prevent it from being pressed off.

[0038] The motor pressing mechanism also includes a guide device 27 for moving the first extrusion block 252 and the second extrusion block 262 in the horizontal direction, the guide device 27 includes a sliding guide rail 271, a first sliding block 272 and a second sliding block 273, the sliding guide rail 271 is fixedly installed on the lower surface of the support platform 21, the first sliding block 272 and the second sliding block 273 are respectively and correspondingly installed at both ends of the sliding guide rail 271, the first sliding block 272 is tightly connected to the first extrusion block 252, and the second sliding block 27273 is tightly connected to the second extrusion block 262; the first extrusion block 252 and the second extrusion block 262 move along the sliding guide rail 271, which is conducive to the first and second extrusion blocks 262 to more accurately extrude the motor fixing foot in the horizontal direction and prevent the first and second extrusion blocks 262 from running off; the guide device 27 is divided into two groups, and the two groups of guide devices 27 are symmetrically fixedly connected to the front and rear ends of the extrusion blocks; in this way, the first extrusion block 252 and the second extrusion block 262 are more balanced during the movement.

[0039] The press-fitting method of the motor press-fitting mechanism comprises the following steps:

[0040] First, the push cylinder drives the material seat at the end of the push cylinder shaft to move upward, and the motor gear box to be pressed on the material seat moves upward with the material seat, and the upper end of the motor to be pressed is pressed on the limit seat, so that the motor and the gear box are tightly assembled together;

[0041] Second, the shaft end of the bending drive cylinder extends downward, driving the angle between the upper ends of the first connecting rod and the second connecting rod to increase, and the bending and extruding parts of the third connecting rod and the fourth connecting rod are moved closer to each other under the linkage of the first connecting rod and the second connecting rod, so that the fixed legs on both sides of the lower end of the motor to be pressed are bent and clamped on the gear box;

[0042] Third, when the axial end of the bending drive cylinder retracts upward, the angle between the first connecting rod and the second connecting rod becomes smaller, and the first connecting rod, the second connecting rod and the bending extrusion parts of the third connecting rod and the fourth connecting rod are linked to separate from each other, and the pressed motor gear box assembly is loosened.

[0043] The design focus of the invention is to press the motor into the gear box for press-fitting and fixing through the press-fitting fixing assembly, and then bend the fixing legs on both sides of the lower end of the motor and clamp them on the gear box through the extrusion bending assembly to realize the assembly of the motor and the gear box and fix them to each other. The two functions of press-fitting and bending fixing are realized by one mechanism, with a compact structure and convenient and quick operation. The motor gear box to be press-fitted is assembled together by the push cylinder combined with the limit seat, and fully automated operation is adopted with high assembly precision.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. Motor press-fitting mechanism, characterized in that: It includes a support platform, a press-fit fixing assembly for assembling the motor gear box, and an extrusion bending assembly for bending and clamping the fixing legs on both sides of the lower end of the motor on the gear box; The support platform is provided with a through hole for the motor to be press-fitted to pass through; The press-fitting fixing assembly includes a vertically arranged push cylinder, a material seat and a limit seat, the material seat is connected to the shaft end of the push cylinder, the limit seat is fastened to the upper end of the through hole, the limit seat is located directly above the material seat, and the material seat drives the upper end of the motor to be pressed on the material seat to move up and down under the drive of the push cylinder and detachably abut against the limit seat; The extrusion bending assembly includes a bending drive cylinder, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The bending drive cylinder is vertically installed on a support table. The above-mentioned limit seat is located directly below the axial end of the bending drive cylinder. The upper ends of the first connecting rod and the second connecting rod are hinged to the axial end of the bending drive cylinder. The middle of the third connecting rod and the middle of the fourth connecting rod are respectively pivotally connected to the support table. The upper end of the third connecting rod is hinged to the lower end of the first connecting rod, the upper end of the fourth connecting rod is hinged to the lower end of the second connecting rod, the lower end of the first connecting rod and the The lower ends of the two connecting rods can be separated or closed with respect to the axial end of the bending drive cylinder, and the lower ends of the third connecting rod and the fourth connecting rod can be close to or away from each other under the linkage of the first connecting rod and the second connecting rod. The lower ends of the third connecting rod and the fourth connecting rod are integrally provided with a bending extrusion portion, and the bending extrusion portion of the third connecting rod and the bending extrusion portion of the fourth connecting rod are opposite to each other. The above-mentioned material seat is located below the support platform, and the material seat can be moved up and down under the drive of the push cylinder and is located between the bending extrusion portion of the third connecting rod and the bending extrusion portion of the fourth connecting rod.

2. The motor press-fitting mechanism according to claim 1, characterized in that: A spring is vertically arranged in the limit seat to prevent the motor gear box from rigidly colliding during the press-fitting process, and the lower end of the spring is tightly connected to a press-fitting shaft corresponding to the shaft end of the motor to be press-fitted.

3. The motor press-fitting mechanism according to claim 1, characterized in that: A first extrusion block is fastened to the end of the bent extrusion portion of the third connecting rod, and a second extrusion block is fastened to the end of the bent extrusion portion of the fourth connecting rod. Both the first extrusion block and the second extrusion block are provided with grooves for limiting the position of the fixed feet of the motor to be pressed, and the grooves of the first extrusion block and the second extrusion block are opposite to each other.

4. The motor press-fitting mechanism according to claim 3, characterized in that: The motor press-fitting mechanism further comprises a guide device for moving the first extrusion block and the second extrusion block in a horizontal direction.

5. The motor press-fitting mechanism according to claim 4, characterized in that: The guiding device includes a sliding rail, a first sliding block and a second sliding block. The sliding rail is fixedly installed on the lower surface of the support platform. The first sliding block and the second sliding block are respectively and correspondingly installed on both ends of the sliding rail. The first sliding block is tightly connected to the first extrusion block, and the second sliding block is tightly connected to the second extrusion block.

6. The motor press-fitting mechanism according to claim 4, characterized in that: The guide devices are divided into two groups, and the two groups of guide devices are symmetrically and firmly connected to the front and rear ends of the extrusion block.

7. The motor press-fitting mechanism according to claim 1, characterized in that: A rotating shaft is longitudinally arranged at the axial end of the bending drive cylinder, and the upper ends of the first connecting rod and the second connecting rod are respectively hinged to the rotating shaft, and the first connecting rod and the second connecting rod can be separated or closed relative to the rotating shaft.

8. The motor press-fitting mechanism according to claim 1, characterized in that: The support platform includes a first support part for supporting the bending drive cylinder and a second support part for motor press-fitting and bending, and the first support part is integrally installed above the second support part.

9. The motor press-fitting mechanism according to claim 8, characterized in that: The first support part and the second support part both include a support plate and support rods fastened to the four corners of the lower end of the support plate. The axial end of the bending drive cylinder vertically penetrates the support plate of the first support part, and the middle of the third connecting rod and the middle of the fourth connecting rod are respectively pivotally connected to the support plate of the second support part.

10. A method for press-fitting a motor press-fitting mechanism according to any one of claims 1 to 9, characterized in that: The steps include: First, the push cylinder drives the material seat at the end of the push cylinder shaft to move upward, and the motor gear box to be pressed on the material seat moves upward with the material seat, and the upper end of the motor to be pressed is pressed on the limit seat, so that the motor and the gear box are tightly assembled together; Second, the shaft end of the bending drive cylinder extends downward, driving the angle between the upper ends of the first connecting rod and the second connecting rod to increase, and the bending and extruding parts of the third connecting rod and the fourth connecting rod are moved closer to each other under the linkage of the first connecting rod and the second connecting rod, so that the fixed legs on both sides of the lower end of the motor to be pressed are bent and clamped on the gear box; Third, when the axial end of the bending drive cylinder retracts upward, the angle between the first connecting rod and the second connecting rod becomes smaller, and the first connecting rod, the second connecting rod and the bending extrusion parts of the third connecting rod and the fourth connecting rod are linked to separate from each other, and the pressed motor gear box assembly is loosened.

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