Casing bearing riveting mechanism for stator installation and control method thereof

Abstract

The invention relates to a casing bearing riveting mechanism for stator installation and a control method thereof, and belongs to the technical field of casing bearing riveting equipment, the casing bearing riveting mechanism comprises a rack, and the rack is provided with a bearing press-fitting riveting assembly. The bearing press-fitting and riveting assembly comprises a press-fitting and riveting seat, a press is arranged at the upper end of the press-fitting and riveting seat, a bearing positioning and placing tool is arranged in the press-fitting and riveting seat, a shell positioning and placing tool is arranged below the bearing positioning and placing tool, and the shell positioning and placing tool is arranged below the shell positioning and placing tool. And a propelling cylinder for driving the shell positioning and placing tool to slide back and forth is arranged at the rear end of the press-fitting and riveting seat. The device has the advantages of compact structure, good operation stability and high efficiency. The press-in and riveting actions of the bearing are integrated, and the production takt of products is shortened through the integration of the press-in and riveting actions. And meanwhile, the concentricity of the shell and the bearing can be ensured by adopting a centering mechanism in the press-fitting process.

Description

Technical Field

[0001] The present invention relates to the technical field of casing bearing riveting and pressing equipment, and particularly relates to a casing bearing riveting and pressing mechanism for stator installation and its control method. Background Art

[0002] With the development of industry, automotive motors are also being updated day by day. As an indispensable component in the motor, the pressing and riveting of bearings have also become essential processes. In the automation industry, this pressing technology has gradually developed. In the motor structure, the bearing is still an important supporting component. When it is riveted with the casing end cover assembly, the riveting tool is tightened in the end cover, resulting in inconvenience in removing the product.

[0003] Currently, most enterprises use a crowbar to remove the product. The disadvantages of this method are obvious: low production efficiency, poor product appearance, and the crowbar is a consumable part, increasing production costs. There are also some enterprises that use a rectangular spring device on the riveting tool seat, and the tool seat rebounds to remove the product. However, this method has a relatively complex structure and the spring has fatigue strength, which is not convenient for replacing and maintaining key components, and the riveting quality is unstable. Summary of the Invention

[0004] The present invention mainly solves the deficiencies existing in the prior art, and provides a casing bearing riveting and pressing mechanism for stator installation and its control method, which has the advantages of compact structure, good operation stability and high efficiency. It realizes the integration of the bearing pressing and riveting actions. By integrating the pressing and riveting actions, the production beat of the product is shortened. At the same time, a centering mechanism is adopted during the pressing process to ensure the concentricity of the casing and the bearing.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: A casing bearing riveting and pressing mechanism for stator installation includes a frame, and a bearing pressing and riveting assembly is provided on the frame. The bearing pressing and riveting assembly includes a pressing and riveting seat. A press is provided at the upper end of the pressing and riveting seat. A bearing positioning and placing tooling is provided inside the pressing and riveting seat. A casing positioning and placing tooling is provided below the bearing positioning and placing tooling. A propulsion cylinder for driving the front-back sliding of the casing positioning and placing tooling is provided at the rear end of the pressing and riveting seat.

[0006] Preferably, a bearing feeding assembly is provided at the rear end of the bearing pressing and riveting assembly, and a bearing handling assembly is provided between the bearing feeding assembly and the bearing pressing and riveting assembly.

[0007] Preferably, the bearing handling assembly includes a bearing handling rack, on which a Y-axis cylinder is provided. At the front end of the Y-axis cylinder, a jaw cylinder is provided. Between the jaw cylinder and the Y-axis cylinder, a Z-axis cylinder is provided. Between the Z-axis cylinder and the Y-axis cylinder, a slider seat is provided.

[0008] Preferably, the bearing feeding assembly includes a feeding base, on which a number of bearing cartridges are provided. At the lower end of each bearing cartridge, a pushing cylinder bolted and fixed to the side of the feeding base is provided. Between the pushing cylinder and the bearing cartridge, an opposed sensor is provided.

[0009] Preferably, a transverse cylinder is provided between the side of the feeding base and the jaw cylinder, and a pushing plate is provided on the transverse cylinder.

[0010] Preferably, a centering cylinder is provided at the lower end of the press-fitting and riveting base, and a centering rod extending to the bearing positioning and placing tooling is provided at the upper end of the centering cylinder.

[0011] A control method for a housing bearing riveting mechanism for stator installation includes the following operating steps: The first step: Place the bearing into the bearing positioning and placing tooling, and the opposed detection on the bearing positioning and placing tooling senses that the bearing is placed in place.

[0012] The second step: Place the housing on the housing positioning and placing tooling. The press simultaneously moves downward to pick up the bearing. The pressing head of the press contacts the bearing to achieve positioning. Then, the bearing material is sucked by the suction cup located at the pressing head, and then rises to the pre-press-fitting height.

[0013] The third step: The housing positioning and placing tooling is moved to the press-fitting area by the propulsion cylinder. The centering rod rises through the centering cylinder and is inserted into the center of the bearing to achieve calibration of the bearing center position.

[0014] The fourth step: After the bearing center is calibrated, the centering rod descends, and at the same time the press descends to complete the assembly of the bearing and the housing, and at the same time complete the riveting.

[0015] Preferably, the Z-axis cylinder descends to the grasping height, the jaw cylinder grabs the bearing, then the Z-axis cylinder rises and resets, and the Y-axis cylinder moves forward to the bearing positioning and placing tooling for placement.

[0016] Preferably, the bearing is placed into the corresponding bearing cartridge. Each group of bearing cartridges has a blocking rod, which is pulled out after the bearing is placed to prevent the bearing from falling during the placement process. The opposed sensor senses the bearing material to judge that there is material at the bearing feeding place. Then, the pushing cylinder pushes the bearing out of the bearing cartridge and moves it to the transverse cylinder. Then, the pushing plate on the transverse cylinder pushes the bearing to the waiting position for the jaw cylinder to pick up the material.

[0017] The present invention can achieve the following effects: The present invention provides a housing bearing riveting and pressing mechanism for stator installation and its control method. Compared with the prior art, it has the advantages of compact structure, good running stability and high efficiency. It realizes the integration of bearing pressing and riveting actions, and shortens the production beat of the product through the integration of pressing and riveting actions. At the same time, a centering mechanism is adopted during the pressing process to ensure the concentricity of the housing and the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention.

[0019] Figure 2 is a schematic structural diagram of the bearing feeding assembly of the present invention.

[0020] Figure 3 is a schematic structural diagram of the bearing handling assembly of the present invention.

[0021] Figure 4 is a schematic structural diagram of the bearing pressing and riveting assembly of the present invention.

[0022] In the figure: bearing pressing and riveting assembly 1, bearing handling assembly 2, bearing feeding assembly 3, frame 4, pushing plate 5, bearing cartridge 6, opposed sensors 7, feeding seat 8, pushing cylinder 9, transverse cylinder 10, bearing handling frame 11, Y-axis cylinder 12, slider seat 13, Z-axis cylinder 14, jaw cylinder 15, press 16, pressing and riveting seat 17, propulsion cylinder 18, centering rod 19, centering cylinder 20, housing positioning and placing tooling 21, bearing positioning and placing tooling 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solution of the invention will be further specifically described below through embodiments and in conjunction with the drawings.

[0024] Embodiment: As Figures 1-4 shown, a housing bearing riveting and pressing mechanism for stator installation includes a frame 4, and a bearing pressing and riveting assembly 1 is provided on the frame 4. The bearing pressing and riveting assembly 1 includes a pressing and riveting seat 17, a press 16 is provided at the upper end of the pressing and riveting seat 17, a bearing positioning and placing tooling 22 is provided inside the pressing and riveting seat 17, a housing positioning and placing tooling 21 is provided below the bearing positioning and placing tooling 22, and a propulsion cylinder 18 for driving the housing positioning and placing tooling 21 to slide back and forth is provided at the rear end of the pressing and riveting seat 17. A centering cylinder 20 is provided at the lower end of the pressing and riveting seat 17, and a centering rod 19 extending to the bearing positioning and placing tooling 22 is provided at the upper end of the centering cylinder 20.

[0025] At the rear end of the bearing press-fitting and riveting assembly 1, there is a bearing feeding assembly 3. The bearing feeding assembly 3 includes a feeding base 8. There are 3 bearing barrels 6 on the feeding base 8. At the lower ends of the bearing barrels 6, there are pushing cylinders 9 bolted and fixed to the side of the feeding base 8. Between the pushing cylinders 9 and the bearing barrels 6, there are opposed sensors 7. Between the bearing feeding assembly 3 and the bearing press-fitting and riveting assembly 1, there is a bearing handling assembly 2. The bearing handling assembly 2 includes a bearing handling frame 11. On the bearing handling frame 11, there is a Y-axis cylinder 12. At the front end of the Y-axis cylinder 12, there is a gripper cylinder 15. Between the side of the feeding base 8 and the gripper cylinder 15, there is a transverse cylinder 10. On the transverse cylinder 10, there is a pushing plate 5. Between the gripper cylinder 15 and the Y-axis cylinder 12, there is a Z-axis cylinder 14. Between the Z-axis cylinder 14 and the Y-axis cylinder 12, there is a slider seat 13.

[0026] A control method for a housing bearing riveting mechanism used for stator installation includes the following operating steps: The first step: Place the bearing into the bearing positioning and placing tooling 22, and the opposed detection on the bearing positioning and placing tooling 22 senses that the bearing is placed in place.

[0027] Put the bearing into the corresponding bearing barrel 6. Each group of bearing barrels 6 has a blocking rod, which is withdrawn after the bearing is placed to prevent the problem of the bearing falling during the placing process; the opposed sensor 7 senses the bearing material, determines that there is material at the bearing feeding place, and then the pushing cylinder 9 pushes the bearing out of the bearing barrel 6 and moves it to the transverse cylinder 10, and then the pushing plate 5 on the transverse cylinder 10 pushes the bearing to the waiting material taking position for the gripper cylinder 15 to take the material.

[0028] The Z-axis cylinder 14 descends to the grasping height, the gripper cylinder 15 grabs the bearing, then the Z-axis cylinder 14 rises and resets, and the Y-axis cylinder 12 moves forward to the bearing positioning and placing tooling 22 for placing.

[0029] The second step: Place the housing on the housing positioning and placing tooling 21, and the press 16 acts simultaneously to descend to take the bearing. The pressure head of the press 16 contacts the bearing to achieve positioning, and then sucks the bearing material through the suction cup at the pressure head, and then rises to the pre-press-fitting height.

[0030] The third step: The housing positioning and placing tooling 21 is moved to the press-fitting area by the propulsion cylinder 18, and the centering rod 19 rises and ejects through the centering cylinder 20 and inserts into the center of the bearing to achieve the calibration of the bearing center position.

[0031] The fourth step: After the bearing center is calibrated, the centering rod 19 descends, and at the same time the press 16 descends to complete the assembly of the bearing and the housing and complete the riveting at the same time.

[0032] In summary, the housing bearing riveting and pressing mechanism for stator installation and its control method have the advantages of compact structure, good operation stability and high efficiency. It realizes the integration of bearing pressing and riveting actions, and shortens the production cycle of products through the integration of pressing and riveting actions. At the same time, a centering mechanism is adopted during the pressing process to ensure the concentricity of the housing and the bearing.

[0033] The above are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A housing bearing riveting mechanism for stator installation, characterized in that: The invention comprises a frame (4), wherein the frame (4) is provided with a bearing press-fitting riveting assembly (1); the bearing press-fitting riveting assembly (1) comprises a press-fitting riveting seat (17), wherein a press (16) is provided at the upper end of the press-fitting riveting seat (17), wherein a bearing positioning and placing tool (22) is provided inside the press-fitting riveting seat (17), wherein a housing positioning and placing tool (21) is provided below the bearing positioning and placing tool (22), and wherein a propulsion cylinder (18) for driving the housing positioning and placing tool (21) to slide forward and backward is provided at the rear end of the press-fitting riveting seat (17).

2. The housing bearing riveting mechanism for stator installation according to claim 1, characterized in that: A bearing feeding assembly (3) is provided at the rear end of the bearing press-fitting riveting assembly (1), and a bearing transporting assembly (2) is provided between the bearing feeding assembly (3) and the bearing press-fitting riveting assembly (1).

3. The housing bearing riveting mechanism for stator installation according to claim 2, characterized in that: The bearing transport assembly (2) comprises a bearing transport frame (11), a Y-axis cylinder (12) is provided on the bearing transport frame (11), a clamping cylinder (15) is provided at the front end of the Y-axis cylinder (12), a Z-axis cylinder (14) is provided between the clamping cylinder (15) and the Y-axis cylinder (12), and a slider seat (13) is provided between the Z-axis cylinder (14) and the Y-axis cylinder (12).

4. The housing bearing riveting mechanism for stator installation according to claim 3 is characterized in that: The bearing feeding assembly (3) comprises a feeding seat (8), on which a plurality of bearing barrels (6) are arranged, and at the lower end of each of the bearing barrels (6) there are push cylinders (9) bolted and fixed to the side of the feeding seat (8), and between the push cylinders (9) and the bearing barrels (6) there are cross-shooting sensors (7).

5. The housing bearing riveting mechanism for stator installation according to claim 4, characterized in that: A transverse cylinder (10) is provided between the side of the feeding seat (8) and the clamping claw cylinder (15), and a push plate (5) is provided on the transverse cylinder (10).

6. The housing bearing riveting mechanism for stator installation according to claim 1 or 5, characterized in that: A centering cylinder (20) is provided at the lower end of the press-fit riveting seat (17), and a centering rod (19) extending to the bearing positioning and placing tooling (22) is provided at the upper end of the centering cylinder (20).

7. A control method for a housing bearing riveting mechanism for stator installation according to claim 6, characterized in that The steps are as follows: Step 1: placing the bearing into the bearing positioning and placing tool (22), and placing the bearing in position by the beam detection sensor on the bearing positioning and placing tool (22); Step 2: The housing is placed on the housing positioning and placing tool (21), and the press (16) is simultaneously moved down to take the bearing, the pressing head of the press (16) contacts the bearing to achieve positioning, and then the bearing material is sucked by the suction cup located at the pressing head, and then it is raised back to the pre-pressing height; Step 3: The housing positioning and placing tool (21) is moved to the press-fitting area by the pushing cylinder (18), and the centering rod (19) is lifted up and pushed out by the centering cylinder (20) and inserted into the center of the bearing to achieve the calibration of the bearing center position; Step 4: After the bearing center is calibrated, the centering rod (19) is lowered and the press (16) is lowered to complete the assembly of the bearing housing and the riveting.

8. The control method of the housing bearing riveting mechanism for stator installation according to claim 7, characterized in that: The Z-axis cylinder (14) descends to the grasping height, the gripper cylinder (15) grasps the bearing, and then the Z-axis cylinder (14) is lifted and reset, and the Y-axis cylinder (12) moves forward to the bearing positioning and placement tool (22) for placement.

9. The control method of the housing bearing riveting mechanism for stator installation according to claim 8, characterized in that: The bearings are placed in corresponding bearing barrels (6). Each group of bearing barrels (6) is provided with a blocking rod, which is pulled out after the bearings are placed, so as to prevent the bearings from falling during the placement process. The bearing material is sensed by the through-beam sensor (7), and it is determined that there is material at the bearing feeding position. Then, the push cylinder (9) pushes the bearing out of the bearing barrel (6) and moves it to the horizontal cylinder (10). Then, the push plate (5) on the horizontal cylinder (10) pushes the bearing to the waiting position to wait for the gripper cylinder (15) to pick up the material.

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