Micro motor bearing press-in device

Abstract

The utility model relates to motor production equipment technical field especially, and it is a kind of micro motor bearing press-in device, including frame, support, carriage, drive assembly B and drive assembly C, motor shaft centering clamping mechanism is set on frame, to be clamped and supported to motor shaft by motor shaft centering clamping mechanism;Support is set on frame, bearing feeding table is set on support, and guide chute is set on bearing feeding table;Carriage is slidably arranged in support, slide is slidably arranged on carriage, and bearing centering clamping mechanism is set on the bottom of slide, to be clamped by bearing centering clamping mechanism to bearing;Drive assembly B is set on carriage and drives slide to slide;Drive assembly C is set on support and drives carriage to slide along the height direction of support.The utility model can be applicable to the bearing of different sizes motor shaft press fitting, and bearing automatic taking and press fitting, high security, and it is more convenient for the bearing press fitting of the motor shaft of same type.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing equipment technology, and in particular to a micro motor bearing pressing device. Background Technology

[0002] During the production of micro motors, bearings need to be press-fitted onto the motor shaft. Traditional bearing press-fitting is done manually, which is difficult to align, has poor press-fitting stability, and is very inefficient.

[0003] Chinese Patent No. CN222404267U discloses a motor bearing press-in device, including a worktable. The device has multiple push rods arranged in a circular array. The push rods are curved and rotate, with their lower parts moving closer or further apart at equal intervals. Through the cooperation between the above structures, the distance between the bottom end faces of the array of push rods can be circularly reduced or expanded, enabling the device to adapt to more types of bearing press-in tasks and improving the practicality of the equipment.

[0004] However, the device still has shortcomings: the motor shaft clamping and positioning structure in the device lacks a guide structure between the motor shaft and the motor shaft. When switching the press-fit bearings for motor shafts of the same model, the two clamping plates need to move away and then move closer together, which is inefficient. In addition, the device requires manual removal of the bearing and pre-fitting it onto the end of the motor shaft before press-fitting, which is cumbersome, inefficient, and somewhat dangerous. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a micro motor bearing pressing device.

[0006] The technical solution of this utility model is: a micro motor bearing pressing device, including a frame, on which a motor shaft centering clamping mechanism is provided to clamp and support motor shafts of different outer diameters.

[0007] A support frame is mounted on the machine frame. A bearing feeder is mounted on the support frame, and a guide chute is mounted on the bearing feeder.

[0008] The slide is slidably mounted on the support, and a slide block is slidably mounted on the slide. A bearing centering and clamping mechanism is provided at the bottom of the slide block to clamp bearings of different outer diameters.

[0009] Drive component B is mounted on the carriage and drives the slide block to slide along the horizontal direction of the carriage.

[0010] And drive component C, which is mounted on the bracket and drives the carriage to slide along the height direction of the bracket.

[0011] Preferably, the frame is provided with a motor shaft centering and clamping mechanism to clamp and support motor shafts of different outer diameters.

[0012] A support frame is mounted on the machine frame. A bearing feeder is mounted on the support frame, and a guide chute is mounted on the bearing feeder.

[0013] The slide is slidably mounted on the support, and a slide block is slidably mounted on the slide. A bearing centering and clamping mechanism is provided at the bottom of the slide block to clamp bearings of different outer diameters.

[0014] Drive component B is mounted on the carriage and drives the slide block to slide along the horizontal direction of the carriage.

[0015] And drive component C, which is mounted on the bracket and drives the carriage to slide along the height direction of the bracket.

[0016] Preferably, the motor shaft centering and clamping mechanism includes a support platform, a slider A, and a drive component A. The support platform is connected to the frame. Several slide grooves A are arranged in a circular array around its axis on the support platform. The number of sliders A is the same as the number of slide grooves A. The lower end of each slider A is inserted into the slide groove A on the corresponding side and slidably connected to its inner wall. The drive component A is set on the support platform and drives each slider A to move closer or further away synchronously.

[0017] Preferably, several guide wheels A are respectively arranged at the ends of slider A that are close to each other and rotate along their height.

[0018] Preferably, slider A is provided with slider B that slides along its height, slider B is provided with a connecting rod, the top of the connecting rod is provided with a mounting plate, and guide wheels B are rotatably provided at the ends of the mounting plates that are close to each other. Furthermore, slider A is provided with a tensioning component, and the movable end of the tensioning component is connected to the bottom surface of slider B.

[0019] Preferably, a slide groove B is provided on the slide carriage above the bearing feeding table, and a slide groove C is provided on the side wall of the slide groove B along its length direction. The slide block is located in the slide groove B and is slidably connected to its inner wall, and the two ends of the slide block are respectively inserted into the corresponding side slide groove C and are slidably connected to its inner wall.

[0020] Preferably, the bearing centering and clamping mechanism includes a fixed disk, pressure rods, a disc, a positioning plate, and a motor B. The fixed disk is disposed on the bottom surface of the slide. Several T-shaped slots parallel to the radial direction are arranged in a circular array around the fixed disk's axis. The number of pressure rods is the same as the number of T-shaped slots. The lower end of each pressure rod is inserted into the corresponding T-shaped slot and slides along its length. The disc is coaxially disposed at the bottom of the fixed disk. Several arc-shaped slots are arranged in a circular array around the disc's axis. Each pressure rod passes through the corresponding arc-shaped slot and slides in contact with its inner wall. The positioning plate includes multiple positioning plates, each connected to a pressure rod on a corresponding side. The motor B is disposed on the slide and drives the disc to rotate, thereby adjusting the spacing between the pressure rods.

[0021] Preferably, a clamping block is provided at the end of the positioning plate away from the pressure rod, and a pressure plate that slides along its axial direction is provided at the end of the positioning plate close to it. The bottom surface of the pressure plate is flush with the bottom surface of the positioning plate, and a screw for driving the pressure plate to slide is provided on the positioning plate.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] By setting up a motor shaft centering and clamping mechanism consisting of a support platform, slider A, drive assembly A, and guide wheel A, it is convenient to clamp and fix motor shafts of different models. When clamping motor shafts of the same model, they can be directly inserted and removed without repeated adjustments, improving operational convenience. By setting up a bearing feeding platform with a guide groove and setting an electric telescopic rod on the slide to drive the sliding block to slide and change position, it is convenient to move the bearing centering and clamping mechanism to the discharge end of the guide groove and use it to clamp the bearing. This structure directly centers and grabs the bearing and transfers it above the motor shaft for direct press-fitting without manual straightening, which is safe and efficient. At the same time, this utility model also sets up an elastic lifting mounting plate and guide wheel B on slider A to facilitate stable support for taller motor shafts and improve the press-fitting stability of motor shafts with larger long ends. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the centering clamping mechanism.

[0026] Figure 3 This is a schematic diagram of the connection structure between the drive component and slider A;

[0027] Figure 4 This is a schematic diagram of the connection structure of the various components on the carriage.

[0028] Figure 5 This is a schematic diagram of the connection structure of the various components on the slide.

[0029] Reference numerals: 1. Frame; 2. Support platform; 201. Slide A; 3. Slider A; 4. Guide wheel A; 5. Drive assembly A; 51. Lead screw A; 52. Helical gear; 53. Helical gear disc; 54. Motor A; 6. Slider B; 7. Connecting rod; 8. Mounting plate; 9. Guide wheel B; 10. Tensioning assembly; 11. Bracket; 111. Bearing feed table; 112. Guide chute; 12. Slide; 121. Slide B; 122. Slide C; 123. Electric telescopic rod; 13. Slide seat; 14. Fixed plate; 141. T-slot; 15. Pressure rod; 16. Disc; 161. Arc groove; 17. Positioning plate; 18. Clamping block; 19. Pressure plate; 20. Screw; 21. Motor B; 22. Servo electric cylinder. Detailed Implementation

[0030] Example 1

[0031] like Figures 1-5As shown, the present invention proposes a micro motor bearing pressing device, including a frame 1, a bracket 11, a slide 12, a drive assembly B, and a drive assembly C. A motor shaft centering clamping mechanism is provided on the frame 1. The motor shaft centering clamping mechanism includes a support platform 2, sliders A3, and a drive assembly A5. The support platform 2 is connected to the frame 1. Several slide grooves A201 are arranged in a circular array around its axis on the support platform 2. The number of sliders A3 is the same as the number of slide grooves A201. The lower end of each slider A3 is inserted into the slide groove A201 on the corresponding side and slidably connected to its inner wall. Several guide wheels A4 are arranged at the ends of the sliders A3 that are close to each other along their height. The drive assembly A5 includes lead screws 51, helical gears 52, a helical gear disc 53, and a motor A54. The number of lead screws 51 is the same as the number of slides A201. Each lead screw 51 is located in a corresponding slide A201 and is rotatably connected to the support platform 2. Each slider A3 is threadedly connected to a lead screw 51 on its corresponding side. The number of helical gears 52 is the same as the number of lead screws 51. Each helical gear 52 is coaxially connected to a lead screw 51 on its corresponding side. The helical gear disc 53 is coaxially rotatably connected to the support platform 2, and each helical gear 52 meshes with the helical gear disc 53. The motor A54 is mounted on the support platform 2. The output end of the motor A54 is connected to one of the lead screws 51 via a coupling. When the motor A54 is in operation, it drives each slider A3 to move synchronously closer or further away, thereby clamping and supporting motor shafts of different outer diameters through a motor shaft centering clamping mechanism. A support bracket 11 is mounted on a frame 1, and a bearing feed table 111 is mounted on the support bracket 11. A guide groove 112 is mounted on the bearing feed table 111. A slide 12 is slidably mounted on the support bracket 11, and a slide block 13 is slidably mounted on the slide 12. A slide groove B121 is provided on the slide 12 above the bearing feed table 111. A slide groove C122 is provided on the side wall of the slide groove B121 along its length. The slide block 13 is located in the slide groove B121 and is slidably connected to its inner wall. Both ends of the slide block 13 are respectively inserted into the corresponding slide groove C122 and are slidably connected to its inner wall. A bearing centering clamping mechanism is provided at the bottom of the slide block 13 to clamp bearings of different outer diameters. The bearing centering and clamping mechanism includes a fixed disk 14, pressure rods 15, a disc 16, a positioning plate 17, and a motor B21. The fixed disk 14 is disposed on the bottom surface of the slide block 13. Several T-shaped grooves 141 parallel to the radial direction are arranged in a circular array around the axis of the fixed disk 14. The number of pressure rods 15 is the same as the number of T-shaped grooves 141. The lower end of each pressure rod 15 is inserted into the corresponding T-shaped groove 141 and slides along its length. The disc 16 is coaxially disposed at the bottom of the fixed disk 14. Several arc-shaped grooves 161 are arranged in a circular array around the axis of the disc 16. Each pressure rod 15 passes through the corresponding arc-shaped groove 161 and slides in contact with its inner wall.The positioning plate 17 includes multiple plates, each connected to a corresponding pressure rod 15. A clamping block 18 is provided at the end of the positioning plate 17 furthest from the pressure rod 15, and a pressure plate 19 is provided at the end of the positioning plate 17 closest to it, sliding axially. The bottom surface of the pressure plate 19 is flush with the bottom surface of the positioning plate 17, and a screw 20 is provided on the positioning plate 17 to drive the pressure plate 19 to slide. A motor B21 is mounted on the slide block 13 and drives the disc 16 to rotate, adjusting the spacing between the pressure rods 15. The drive assembly B includes, but is not limited to, an electric telescopic rod 123. The body of the electric telescopic rod 123 is mounted on the slide frame 12, and its output end is connected to the slide block 13. The electric telescopic rod 123 drives the slide block 13 to slide along the length direction of the slide frame 12. The drive assembly C includes, but is not limited to, a servo electric cylinder 22. The body of the servo electric cylinder 22 is mounted on the bracket 11, and its output end is connected to the slide frame 12, driving the slide frame 12 to slide along the height direction of the bracket 11.

[0032] It should be noted that the feed chute 112 includes an inclined section and a straight section that is smoothly connected to the lower end of the inclined section.

[0033] In this embodiment, the bearing is placed in the guide groove 112. The bearing automatically slides and reaches the lower side of the guide groove 112. The electric telescopic rod 123 is activated to push the slide 13 towards the bearing feeding table 111 to the clamping position. The motor B21 drives the disc 16 to rotate. The rotation of the disc 16 causes the pressure rod 15 to move away synchronously through its arc groove 161. Then, the servo electric cylinder 22 pushes down the slide 12 so that the pressure rod 15 surrounds the bearing. The motor B21 rotates in the opposite direction and clamps the bearing through the clamping block 18. After the bearing is clamped, the slide 12 rises and resets. At the same time as clamping the bearing, the operator inserts the motor shaft into the gap of the guide wheel A4 and starts the motor A54. The motor A54 drives the lead screw 51 to rotate. Through the meshing transmission of the helical gear 52 and the helical gear disc 53, all the lead screws 51 rotate synchronously in the same direction, so that each guide wheel A4 moves closer synchronously and clamps the motor shaft. Subsequently, the electric telescopic rod 21 drives the slide block 13 to slide back to its original position, coaxial with the disc 16 and the helical gear disc 53. The servo electric cylinder 22 drives the slide 12 downward and places the bearing onto the motor shaft. The slide 12 continues to press down, and the positioning plate 17 and pressure plate 19 simultaneously apply pressure to the outer and inner rings of the bearing, pressing the bearing onto the calibrated height of the motor shaft. If different sized bearings need to be pressed, and the difference between the outer and inner diameters of the bearing is large, the distance between the pressure plate 19 and the positioning plate 17 needs to be adjusted. In this case, rotating the screw 20 will drive the pressure plate 19 to slide axially along the positioning plate 17.

[0034] Example 2

[0035] like Figures 1-3As shown, the micro motor bearing pressing device proposed in this utility model, compared with the first embodiment, has a slider B6 that slides along its height on slider A3, a connecting rod 7 on slider B6, a mounting plate 8 at the top of the connecting rod 7, and guide wheels B9 rotatably mounted on the adjacent ends of the mounting plates 8. A tensioning assembly 10 is provided on slider A3, including but not limited to electromagnet A and electromagnet B. Electromagnet A is connected to slider A3, and electromagnet B is connected to the bottom surface of slider B6, with electromagnet A and electromagnet B facing each other.

[0036] In this embodiment, electromagnets A and B are energized respectively, so that the magnetic poles at the adjacent ends of electromagnets A and B are the same. This allows slider B6 to have an upward lifting force under the repulsive force of the electromagnets. This structure is used to stabilize long motor shafts and prevent them from bending when pressing bearings. Furthermore, when pressing bearings, the mounting plate 8 slides down under the pressure of the bottom surface of the clamping block 18, which will not affect the final pressing point of the bearing.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A micro motor bearing pressing device, characterized in that, include: The frame (1) is provided with a motor shaft centering clamping mechanism to clamp and support motor shafts of different outer diameters. A bracket (11) is set on a frame (1). A bearing feeder (111) is set on the bracket (11). A guide chute (112) is set on the bearing feeder (111). The slide (12) is slidably mounted on the bracket (11), and the slide seat (13) is slidably mounted on the slide (12). A bearing centering clamping mechanism is provided at the bottom of the slide seat (13) so as to clamp bearings of different outer diameters through the bearing centering clamping mechanism. Drive component B is mounted on the carriage (12) and drives the slide block (13) to slide along the horizontal direction of the carriage (12); And a drive component C, which is mounted on the bracket (11) and drives the carriage (12) to slide along the height direction of the bracket (11).

2. The micro-motor bearing pressing device according to claim 1, characterized in that, The motor shaft centering clamping mechanism includes a support platform (2), a slider A (3), and a drive assembly A (5). The support platform (2) is connected to the frame (1). Several slide grooves A (201) are arranged in a ring array around the axis of the support platform (2). The number of sliders A (3) is the same as the number of slide grooves A (201). The lower end of each slider A (3) is inserted into the slide groove A (201) on the corresponding side and is slidably connected to its inner wall. The drive assembly A (5) is set on the support platform (2) and drives each slider A (3) to move closer or further away synchronously.

3. The micro-motor bearing pressing device according to claim 2, characterized in that, Several guide wheels A(4) are set at the ends of slider A(3) that are close to each other and rotate along their height.

4. The micro-motor bearing pressing device according to claim 3, characterized in that, A slider B (6) is provided on slider A (3) and slides along its height. A connecting rod (7) is provided on slider B (6). A mounting plate (8) is provided at the top of the connecting rod (7). Guide wheels B (9) are rotatably provided at the ends of the mounting plates (8) that are close to each other. A tensioning component (10) is provided on slider A (3). The movable end of the tensioning component (10) is connected to the bottom surface of slider B (6).

5. The micro-motor bearing pressing device according to claim 1, characterized in that, A slide rail B (121) is provided on the slide frame (12) above the bearing feed table (111). A slide rail C (122) is provided on the side wall of the slide rail B (121) along its length direction. The slide seat (13) is located in the slide rail B (121) and is slidably connected to its inner wall. Both ends of the slide seat (13) are respectively inserted into the corresponding side slide rail C (122) and are slidably connected to its inner wall.

6. The micro-motor bearing pressing device according to claim 1, characterized in that, The bearing centering and clamping mechanism includes a fixed disk (14), pressure rods (15), a disc (16), a positioning plate (17), and a motor B (21). The fixed disk (14) is set on the bottom surface of the slide (13). Several T-shaped grooves (141) parallel to its radial direction are arranged in a circular array around its axis on the fixed disk (14). The number of pressure rods (15) is the same as the number of T-shaped grooves (141). The lower end of each pressure rod (15) is inserted into the corresponding T-shaped groove (141) and moves along its radial direction. The disc (16) slides along the length direction and is coaxially set at the bottom of the fixed disc (14). Several arc-shaped grooves (161) are arranged in a ring array around the axis of the disc (16). Each pressure rod (15) passes through the corresponding arc-shaped groove (161) and slides in contact with its inner wall. The positioning plate (17) includes multiple ones and is connected to the pressure rods (15) on the corresponding side. The motor B (21) is set on the slide (13) and drives the disc (16) to rotate so as to adjust the spacing of each pressure rod (15).

7. A micro-motor bearing pressing device according to claim 6, characterized in that, A clamping block (18) is provided at the end of the positioning plate (17) away from the pressure rod (15), and a pressure plate (19) that slides along its axis is provided at the end of the positioning plate (17) close to it. The bottom surface of the pressure plate (19) is flush with the bottom surface of the positioning plate (17), and a screw (20) that drives the pressure plate (19) to slide is provided on the positioning plate (17).

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