A rotor spindle assembly device

Abstract

This invention discloses a rotor spindle assembly device, including a limiting rotary plate, a spindle assembly mechanism, and a drive. The limiting rotary plate has a through hole for the spindle to be assembled to pass through. The spindle assembly mechanism includes a sleeve and a spindle limiting fixture. The sleeve is disposed on the upper end face of the limiting rotary plate, and the spindle limiting fixture is disposed inside the sleeve, directly above the through hole. The lower part of the spindle limiting fixture has a spindle limiting portion, which is also directly above the through hole. The spindle limiting portion includes a first spindle limiting strip and a second spindle limiting strip, which are arranged opposite to each other. The drive is connected to the end of the sleeve away from the limiting rotary plate. This invention can prevent spindle torsion under heavy loads, thereby improving product yield.

Description

Technical Field

[0001] This invention relates to the field of motor assembly technology, and in particular to a rotor spindle assembly device. Background Technology

[0002] An electric motor, commonly known as a motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The main function of an electric motor is to generate driving torque, serving as a power source for electrical appliances or various machines. Therefore, the assembly angle between the motor rotor's main shaft and the rotor core is particularly important. Currently, rotor main shaft assembly equipment uses a single-limiting top rod and collet clamping structure. This involves a curved limiting plate at one end of a straight rod to restrict main shaft torsion, while the collet extends and retracts to clamp the main shaft. However, the single-limiting top rod structure is relatively weak. Under loads exceeding one ton, the main shaft will twist. Furthermore, the limiting plate of the single-limiting top rod can be damaged, and the collet's clamping force is limited, resulting in some wobbling after clamping the main shaft. This leads to unstable rotor magnetization, increasing the product defect rate, and requiring frequent replacement of the single-limiting top rod. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a rotor spindle assembly device that can prevent the spindle from twisting under heavy load, thereby improving the product yield.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a rotor spindle assembly device, comprising a limiting rotation plate, a spindle assembly mechanism and a drive; the limiting rotation plate is provided with a through hole for the spindle to be assembled to pass through;

[0005] The spindle insertion mechanism includes a sleeve and a spindle limiting fixture; the sleeve is disposed on the upper end face of the limiting rotation plate, the spindle limiting fixture is disposed inside the sleeve, the spindle limiting fixture is located directly above the through hole, the lower part of the spindle limiting fixture is provided with a spindle limiting part, the spindle limiting part is located directly above the through hole, the spindle limiting part includes a first spindle limiting strip and a second spindle limiting strip, the first spindle limiting strip and the second spindle limiting strip are disposed opposite to each other;

[0006] The drive is connected to the end of the sleeve away from the limiting rotation plate.

[0007] The beneficial effects of this invention are as follows: By adding a spindle limiting fixture inside the sleeve, the spindle to be assembled is inserted into the spindle limiting part. The first and second spindle limiting bars together restrict the torsion of the spindle to be assembled, ensuring sufficient strength of the spindle limiting fixture during assembly. Simultaneously, under the restriction of the first and second spindle limiting bars, the left and right rotational angle deviation of the spindle to be assembled is reduced due to different operating techniques of different employees. After the spindle limiting fixture clamps the spindle to be assembled, the drive operation causes the limiting rotation plate to press against the motor end cover, and the spindle assembly mechanism assembles the spindle to be assembled into the motor rotor. This achieves the goal of improving the product yield. Attached Figure Description

[0008] Figure 1 This is a cross-sectional structural schematic diagram of a rotor spindle assembly device in a specific embodiment of the present invention;

[0009] Figure 2 This is a schematic diagram of a rotor spindle assembly device according to a specific embodiment of the present invention;

[0010] Figure 3 for Figure 1 Enlarged view of part A of a rotor spindle assembly device;

[0011] Figure 4 This is a schematic diagram of the spindle limiting fixture structure of a rotor spindle assembly device according to a specific embodiment of the present invention;

[0012] Label Explanation:

[0013] 1. Restricting rotating plate; 11. Through hole; 12. Mounting hole;

[0014] 2. Spindle assembly mechanism; 21. Sleeve; 22. Spindle limiting fixture;

[0015] 3. Drive; 4. Spindle limiting part; 41. First spindle limiting bar; 42. Second spindle limiting bar;

[0016] 5. Clamping mechanism; 51. Mounting bracket; 511. Guide rod;

[0017] 52. Cylinder; 53. Pressing bar; 531. Push block; 5311. First spindle top block;

[0018] 54. Backing; 541. Second main shaft top block;

[0019] 6. Chamfer the assembly; 7. Assemble the spindle. Detailed Implementation

[0020] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] Please refer to Figures 1 to 4 As shown, a rotor spindle assembly device includes a limiting rotation plate 1, a spindle assembly mechanism 2, and a drive 3; the limiting rotation plate 1 is provided with a through hole 11 for the spindle 7 to be assembled to pass through;

[0022] The spindle insertion mechanism 2 includes a sleeve 21 and a spindle limiting fixture 22. The sleeve 21 is disposed on the upper end face of the limiting rotation plate 1, and the spindle limiting fixture 22 is disposed inside the sleeve 21. The spindle limiting fixture 22 is located directly above the through hole 11. A spindle limiting part 4 is provided at the lower part of the spindle limiting fixture 22. The spindle limiting part 4 is located directly above the through hole 11. The spindle limiting part 4 includes a first spindle limiting strip 41 and a second spindle limiting strip 42. The first spindle limiting strip 41 and the second spindle limiting strip 42 are disposed opposite to each other.

[0023] The drive 3 is connected to the end of the sleeve 21 away from the limiting rotating plate 1.

[0024] Working Principle: During the spindle assembly process, the spindle 7 to be assembled is first passed through the through hole 11 of the limiting rotation plate 1 and inserted into the sleeve 21 of the spindle assembly mechanism 2. The head of the spindle 7 is then inserted into the spindle limiting part 4. Because the spindle limiting part 4 has two opposing first spindle limiting bars 41 and second spindle limiting bars 42, the spindle 7 will not exhibit excessive left or right rotation angle deviation due to different operating techniques of different employees during the assembly process. After the spindle 7 is placed, the drive 3 is activated, causing the limiting rotation plate 1 to press against the end cover of the motor, and the spindle assembly mechanism 2 to assemble the spindle 7 into the rotor of the motor. During the assembly process, the rotation of the spindle 7 is restricted by the first spindle limiting bar 41 and the second spindle limiting bar 42.

[0025] As can be seen from the above description, the beneficial effects of the present invention are as follows: A spindle limiting fixture 22 is added inside the sleeve 21. The spindle 7 to be assembled is installed into the spindle limiting part 4. The first spindle limiting strip 41 and the second spindle limiting strip 42 together restrict the torsion of the spindle 7 to be assembled, ensuring that the spindle limiting fixture 22 has sufficient strength during the assembly process. Simultaneously, under the restriction of the first spindle limiting strip 41 and the second spindle limiting strip 42, the left and right rotation angle deviation of the spindle 7 to be assembled is reduced due to different operating techniques of different employees. After the spindle limiting fixture 22 clamps the spindle 7 to be assembled, the drive operation causes the limiting rotation plate 1 to press against the motor end cover, and the spindle assembly mechanism 2 assembles the spindle 7 to be assembled into the rotor of the motor. This achieves the purpose of improving the product yield.

[0026] Please refer to Figures 1 to 3As shown, the rotor spindle assembly device further includes a clamping mechanism 5, which includes a mounting bracket 51, a cylinder 52, a pressing rod 53, and a backing 54.

[0027] The mounting bracket 51 is disposed on one side of the sleeve 21, the cylinder 52 is disposed on the mounting bracket 51, one end of the pressing rod 53 is connected to the movable end of the cylinder 52, the other end of the pressing rod 53 extends into the sleeve 21, and a push block 531 is disposed on the other end of the pressing rod 53, the push block 531 can abut against one side of the spindle limiting fixture 22;

[0028] The backing 54 is disposed inside the sleeve 21 and abuts against the other side of the spindle limiting fixture 22.

[0029] As described above, the cylinder 52 drives the movable end to move, causing the pressing rod 53 to push the push block 531 against one side of the main shaft limiting fixture 22 towards the backrest 54. At the same time, the backrest 54 abuts against the other side of the main shaft limiting fixture 22, thereby clamping the main shaft limiting fixture 22 in the sleeve 21. This reduces the shaking of the main shaft limiting fixture 22 when it is under force during the main shaft assembly process, thus ensuring the quality of the main shaft 7 to be assembled into the rotor.

[0030] Furthermore, a first spindle top block 5311 is provided at the lower part of the contact surface between the push block 531 and the spindle limiting fixture 22, and the first spindle top block 5311 abuts against the side wall of the spindle to be assembled.

[0031] The lower part of the contact surface between the backrest 54 and the main spindle limiting fixture 22 is provided with a second main spindle top block 541, which abuts against the side wall of the main spindle 7 to be assembled.

[0032] As described above, when the cylinder 52 drives the movable end to move and clamp the spindle limiting fixture 22, the first spindle top block 5311 and the second spindle top block 541 clamp the spindle to be assembled into the main shaft 7 together, so as to reduce the shaking of the spindle to be assembled into the main shaft 7 during the assembly of the main shaft, and further improve the quality of the spindle to be assembled into the rotor.

[0033] Furthermore, rubber sleeves are provided on both the first spindle top block 5311 and the second spindle top block 541.

[0034] As can be seen from the above description, by providing rubber sleeves on the first spindle top block 5311 and the second spindle top block 541, it is possible to avoid scratching the spindle 7 to be assembled during the clamping operation.

[0035] Furthermore, a guide rod 511 is slidably disposed on the mounting bracket 51, and the sliding direction is toward the main shaft limiting fixture 22. The guide rod 511 is connected to the end of the pressing rod 53 away from the push block 531.

[0036] As can be seen from the above description, during the process of the cylinder 52 driving the pressing rod 53 to move, the guide rod 511 can ensure the straight movement of the pressing rod 53.

[0037] Please refer to Figure 1 As shown, the limiting rotation plate 1 is further provided with a mounting hole 12, which is used to install the limiting rotation plate 1 on the guide light rod.

[0038] As can be seen from the above description, during the assembly process, the limiting rotating plate 1 is installed on the guide light rod through the mounting hole 12, which can ensure the straight and stable movement of the limiting rotating plate 1.

[0039] Furthermore, the first spindle limiting bar 41 and the second spindle limiting bar 42 are provided with assembly chamfers 6.

[0040] As can be seen from the above description, when the spindle 7 to be assembled is placed into the spindle limiting part 4, the assembly chamfer 6 provided on the first spindle limiting bar 41 and the second spindle limiting bar 42 facilitates the placement of the spindle 7 to be assembled.

[0041] Example 1

[0042] Please refer to Figures 1 to 4 As shown, a rotor spindle assembly device includes a limiting rotary plate 1, a spindle assembly mechanism 2, and a drive 3. The limiting rotary plate 1 is provided with a through hole 11 for the spindle 7 to be assembled to pass through. The spindle assembly mechanism 2 includes a sleeve 21 and a spindle limiting fixture 22. The sleeve 21 is disposed on the upper end face of the limiting rotary plate 1, and the spindle limiting fixture 22 is disposed inside the sleeve 21. The spindle limiting fixture 22 is located directly above the through hole 11, and a spindle limiting part 4 is provided at the lower part of the spindle limiting fixture 22. The spindle limiting part 4 is located directly above the through hole 11, and the spindle limiting part 4 includes a first spindle limiting strip 41 and a second spindle limiting strip 42, which are arranged opposite to each other. The drive 3 is connected to the end of the sleeve 21 away from the limiting rotary plate 1.

[0043] It also includes a clamping mechanism 5, which includes a mounting frame 51, a cylinder 52, a pressing rod 53, and a backing 54. The mounting frame 51 is disposed on one side of the sleeve 21, the cylinder 52 is disposed on the mounting frame 51, one end of the pressing rod 53 is connected to the movable end of the cylinder 52, and the other end of the pressing rod 53 extends into the sleeve 21. A push block 531 is disposed on the other end of the pressing rod 53, and the push block 531 can abut against one side of the spindle limiting fixture 22. The backing 54 is disposed inside the sleeve 21 and abuts against the other side of the spindle limiting fixture 22.

[0044] A first spindle top block 5311 is provided below the contact surface between the push block 531 and the spindle limiting fixture 22, and the first spindle top block 5311 abuts against the side wall of the spindle to be assembled. A second spindle top block 541 is provided below the contact surface between the backrest 54 and the spindle limiting fixture 22, and the second spindle top block 541 abuts against the side wall of the spindle to be assembled. Both the first spindle top block 5311 and the second spindle top block 541 are provided with rubber sleeves. A guide rod 511 is slidably provided on the mounting bracket 51, and the sliding direction is towards the spindle limiting fixture 22. The guide rod 511 is connected to the end of the pressing rod 53 away from the push block 531. The limiting rotation plate 1 is provided with a mounting hole 12, which is used to install the limiting rotation plate 1 on the guide rod. The first spindle limiting strip 41 and the second spindle limiting strip 42 are provided with assembly chamfers 6.

[0045] In summary, this invention provides a rotor spindle assembly device. A spindle limiting fixture is added inside the sleeve. The spindle to be assembled is inserted into the spindle limiting part. The first and second spindle limiting bars together restrict the torsion of the spindle to be assembled, ensuring sufficient strength of the spindle limiting fixture during assembly. Simultaneously, the restriction of the first and second spindle limiting bars reduces the left and right rotational angular deviation of the spindle to be assembled due to different operating techniques of different employees. After the spindle limiting fixture clamps the spindle to be assembled, the drive operation causes the limiting rotation plate to press against the motor end cover, and the spindle assembly mechanism assembles the spindle to be assembled into the motor rotor. This achieves the goal of improving the product yield.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rotor spindle assembly device, characterized in that: It includes a limiting rotary plate, a spindle insertion mechanism, a drive and clamping mechanism; the limiting rotary plate is provided with a through hole for the spindle to be inserted to pass through; The spindle insertion mechanism includes a sleeve and a spindle limiting fixture; the sleeve is disposed on the upper end face of the limiting rotation plate, the spindle limiting fixture is disposed inside the sleeve, the spindle limiting fixture is located directly above the through hole, the lower part of the spindle limiting fixture is provided with a spindle limiting part, the spindle limiting part is located directly above the through hole, the spindle limiting part includes a first spindle limiting strip and a second spindle limiting strip, the first spindle limiting strip and the second spindle limiting strip are disposed opposite to each other; The drive is connected to the end of the sleeve away from the limiting rotation plate; The clamping mechanism includes a mounting bracket, a cylinder, a pressing bar, and a backing. The mounting bracket is set on one side of the sleeve, the cylinder is set on the mounting bracket, one end of the pressing rod is connected to the movable end of the cylinder, the other end of the pressing rod extends into the sleeve, and a push block is provided on the other end of the pressing rod. The push block can abut against one side of the spindle limiting fixture. The support is located inside the sleeve and abuts against the other side of the spindle limiting fixture.

2. The rotor spindle assembly device according to claim 1, characterized in that: A first spindle top block is provided at the lower part of the contact surface between the push block and the spindle limiting fixture, and the first spindle top block abuts against the side wall of the spindle to be assembled. A second spindle top block is provided at the lower part of the contact surface between the backrest and the spindle limiting fixture, and the second spindle top block abuts against the side wall of the spindle to be assembled.

3. The rotor spindle assembly device according to claim 2, characterized in that: Both the first spindle top block and the second spindle top block are equipped with rubber sleeves.

4. The rotor spindle assembly device according to claim 1, characterized in that: A guide rod is slidably mounted on the mounting bracket, and the sliding direction is towards the main shaft limiting fixture. The guide rod is connected to the end of the pressing rod away from the push block.

5. A rotor spindle assembly device according to claim 1, characterized in that: The limiting rotation plate is provided with mounting holes, which are used to install the limiting rotation plate on the guide light rod.

6. The rotor spindle assembly device according to claim 1, characterized in that: The first spindle limiting strip and the second spindle limiting strip are provided with assembly chamfers.

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