Motor bearing press-in device

Abstract

The utility model belongs to the technical field of motor production equipment, and particularly relates to a motor bearing press-in device which comprises a workbench, a first servo motor is fixedly arranged in the center of the top end of a hollow disc, a driving gear is fixedly arranged at the bottom end of a rotating shaft, and rotating rods are rotationally arranged in the hollow disc in an annular array through bearings. A driven gear is fixedly arranged on the circumferential surface of the rotating rod, the driven gear is meshed with teeth of the driving gear, an inner gear ring is rotationally arranged on the circumferential surface of the inner wall of the hollow disc through a bearing, the inner gear ring is meshed with teeth of the driven gear, and a rotating disc is fixedly arranged at the bottom end of the rotating rod. Ejector rods are fixedly arranged at the eccentric positions of the bottom ends of the rotating discs, the ejector rods are in a bent shape, through cooperation of the structures, the distance between the bottom end faces of the multiple sets of ejector rods can be circularly reduced or enlarged, the device can adapt to more kinds of bearing press-fitting tasks, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor production equipment, in particular to a motor bearing pressing device. Background Art

[0002] A motor is a device that converts or transmits electrical energy based on the principle of electromagnetic induction. There are many types of motors, each with its own characteristics. For example, AC asynchronous motors are economical and practical, DC brushless motors are efficient and durable, stepper motors are used to precisely control angles, and servo motors are used to precisely control speed, position, and torque. Motors are widely used in industries such as industry, agriculture, transportation, and household appliances. They are important equipment for promoting social and economic development. During the assembly process of motors, a bearing press-in device is required to assemble bearings on the center shaft.

[0003] The existing motor bearing pressing device is mainly composed of a slide, a roller, a workbench, a pressure plate and a hydraulic cylinder. The working principle is: place the rotating shaft and the bearing on the device, and drive the pressure plate through the hydraulic cylinder to press the bearing into the rotating shaft bearing seat.

[0004] The motor bearing pressing device in the existing technology currently has the following disadvantages: the pressing head, as the part that directly contacts the bearing, cannot be adjusted according to different bearing types and specifications. The staff is often required to replace the pressing head with one that matches the bearing. The process is relatively cumbersome, which reduces the convenience of using the equipment and thus reduces work efficiency. Therefore, a motor bearing pressing device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing motor bearing pressing device, a motor bearing pressing device is proposed to solve the problem that the pressure head, as the part that directly contacts the bearing, cannot be adjusted according to different bearing types and specifications. The staff often needs to replace the pressure head with one that matches the bearing. The process is cumbersome, which reduces the convenience of using the equipment and thus reduces work efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a motor bearing pressing device described in the utility model comprises a workbench, a U-shaped support frame is fixedly arranged in the middle of the top end of the workbench, a hydraulic cylinder is fixedly arranged at the top center of the cross plate of the U-shaped support frame through a fixed frame, a hydraulic rod is movably inserted into the bottom end of the hydraulic cylinder, a U-shaped fixed frame is fixedly arranged at the bottom end of the hydraulic rod, a hollow disk is fixedly arranged at the bottom end of the U-shaped fixed frame, two groups of movable plates are fixedly arranged in a mirror image on the circumferential surface of the hollow disk, a guide rod is fixedly arranged in a mirror image between the bottom end of the cross plate of the U-shaped support frame and the top end of the workbench, the guide rod slides through the movable plate, a first servo motor is fixedly arranged at the top center of the hollow disk through a fixed frame,

[0007] The bottom output end of the first servo motor is fixedly provided with a rotating shaft through a coupling, the rotating shaft rotates through a bearing and penetrates the interior of the hollow disk, the bottom end of the rotating shaft is fixedly provided with a driving gear, the interior of the hollow disk is provided with a rotating rod in an annular array through a bearing, a driven gear is fixedly provided on the circumferential surface of the rotating rod, the driven gear is meshed with the teeth of the driving gear, the bottom end of the rotating rod rotates and penetrates the bottom end of the hollow disk, an inner gear ring is rotatably provided on the circumferential surface of the inner wall of the hollow disk through a bearing, the inner gear ring is meshed with the teeth of the driven gear, a rotating disk is fixedly provided at the bottom end of the rotating rod, a top rod is fixedly provided at the eccentric position of the bottom end of the rotating disk, and the top rod is in a curved shape. Through the cooperation of the first servo motor, the driving gear, the driven gear, the rotating disk, and the top rod, the spacing between the bottom end faces of the array top rods can be circularly reduced or expanded, and the adjustable pressure head assembly structure enables the device to adapt to more types of bearing press-fitting tasks, thereby improving the practicality of the equipment.

[0008] Preferably, a rubber pad is fixedly provided at the bottom end of the push rod, and the cooperation of the rubber pad provided at the bottom end of the push rod can prevent the push rod from causing damage to the bearing when squeezing the bearing.

[0009] Preferably, a spring is fixedly provided between the bottom end of the movable plate and the top end of the workbench on the guide rod. Through the cooperation of the spring, firstly, stable and uniform pressure support is provided; secondly, material deformation and deviation are reduced to ensure product quality; thirdly, impact is absorbed, vibration is reduced, and equipment is protected.

[0010] Preferably, two groups of fixed plates are fixedly arranged in a vertically staggered position relationship with the U-shaped support frame in a mirror-image manner, and a screw is rotatably arranged on one side between the opposite surfaces of the two groups of fixed plates through a bearing, and two groups of threads are opened on the circumferential surface of the screw in a mirror-image manner, and the directions of the threads are opposite, and a second servo motor is fixedly arranged on one side of one of the fixed plates through a fixed frame, and the output end of the second servo motor is fixedly connected to one end of the screw through a coupling, and a first moving block is movably arranged at the two groups of threads of the screw through a threaded connection, a clamping plate is fixedly arranged on one side of the first moving block, and V-shaped fixing grooves are opened on the opposite surfaces of the two groups of clamping plates, and a second moving block is fixedly arranged on one side of the clamping plate, and a limiting rod is fixedly arranged on one side between the opposite surfaces of the fixed plates, and the limiting rod slides through the second moving block, and the central shaft is fixedly clamped by the cooperation of the screw, the second servo motor, the first moving block and the clamping plate, so as to facilitate the subsequent bearing pressing work.

[0011] Preferably, a textured rubber pad is fixedly provided on the clamping surface of one side of the clamping plate, and the fixing stability of the central shaft is improved and its surface is protected by the cooperation of the textured rubber pad.

[0012] Preferably, support legs are fixedly provided at the four corners of the bottom end of the workbench, and the overall stability of the equipment is ensured through the cooperation of the support legs.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a motor bearing pressing device. Firstly, a staff member adjusts the rotation angle of a push rod according to the size of a bearing to be pressed, starts a first servo motor, and the rotation of a rotating shaft drives a driving gear to rotate. The driving gear drives a group of driven gears to rotate synchronously in the same direction. The driven gear drives a rotating rod to rotate, the rotating rod drives a rotating disk to rotate, and the rotating disk drives the push rod to rotate. The rotation directions of the push rods of the group are consistent. At the same time, the spacing between the bottom end faces of the push rods of the group is circularly reduced or expanded, so that the push rods can adapt to the pressing tasks of bearings of more types and specifications, improve the practicability and convenience of the equipment, and enable the device to adapt to the pressing tasks of more types of bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional picture of the whole;

[0017] Figure 2 It is a three-dimensional enlarged view of the structure of the hollow disk and the top rod position;

[0018] Figure 3 is a cross-sectional view of a hollow disk;

[0019] Figure 4 It is a three-dimensional enlarged view of the structure at the position of the splint;

[0020] Legend:

[0021] 1. Workbench; 2. U-shaped support frame; 3. Hydraulic cylinder; 4. Hydraulic rod; 5. U-shaped fixed frame; 6. Hollow disk; 7. Moving plate; 8. Guide rod; 9. First servo motor; 10. Rotating shaft; 11. Driving gear; 12. Rotating rod; 13. Driven gear; 14. Internal gear ring; 15. Turntable; 16. Push rod; 17. Rubber pad; 18. Spring; 19. Fixed plate; 20. Screw; 21. Second servo motor; 22. First moving block; 23. Clamp; 24. Second moving block; 25. Limit rod; 26. Textured rubber pad; 27. Support leg. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] See also Figure 1-Figure 4 The utility model discloses a motor bearing pressing device, comprising a workbench 1, a U-shaped support frame 2 is fixedly arranged at the middle of the top of the workbench 1, a hydraulic cylinder 3 is fixedly arranged at the top center of the horizontal plate of the U-shaped support frame 2 through a fixed frame, a hydraulic rod 4 is movably inserted at the bottom end of the hydraulic cylinder 3, a U-shaped fixed frame 5 is fixedly arranged at the bottom end of the hydraulic rod 4, a hollow disk 6 is fixedly arranged at the bottom end of the U-shaped fixed frame 5, two groups of movable plates 7 are fixedly arranged on the circumferential surface of the hollow disk 6 in a mirror-image manner, a guide rod 8 is fixedly arranged between the bottom end of the horizontal plate of the U-shaped support frame 2 and the top of the workbench 1 in a mirror-image manner, the guide rod 8 is slidably penetrated through the movable plate 7, and a first servo motor 9 is fixedly arranged at the top center of the hollow disk 6 through a fixed frame,

[0025] The bottom output end of the first servo motor 9 is fixedly provided with a rotating shaft 10 through a coupling. The rotating shaft 10 rotates through a bearing and penetrates the interior of the hollow disk 6. A driving gear 11 is fixedly provided at the bottom end of the rotating shaft 10. A rotating rod 12 is rotatably provided in a circular array inside the hollow disk 6 through a bearing. A driven gear 13 is fixedly provided on the circumferential surface of the rotating rod 12. The driven gear 13 is meshed with the teeth of the driving gear 11. The bottom end of the rotating rod 12 rotates and penetrates the bottom end of the hollow disk 6. The inner wall of the hollow disk 6 An inner gear ring 14 is rotatably arranged on the circumferential surface through a bearing, and the inner gear ring 14 is meshed with the teeth of the driven gear 13. A turntable 15 is fixedly arranged at the bottom end of the rotating rod 12, and a push rod 16 is fixedly arranged at an eccentric position at the bottom end of the turntable 15. The push rod 16 is in a curved shape, and a rubber pad 17 is fixedly arranged at the bottom end of the push rod 16. A spring 18 is fixedly arranged between the bottom end of the movable plate 7 and the top end of the workbench 1 of the guide rod 8. When working, after the central shaft is fixed, the staff will adjust the bearings of different specifications and sizes. During press-fitting, it is necessary to replace the matching press head, but the press head device of the equipment cannot be adjusted accordingly, which reduces the convenience of using the equipment. First, the staff adjusts the rotation angle of the push rod 16 according to the size of the bearing to be press-fitted, starts the first servo motor 9, and the rotation of the shaft 10 drives the driving gear 11 to rotate, and the driving gear 11 drives the array driven gear 13 to rotate synchronously in the same direction, and the driven gear 13 drives the rotating rod 12 to rotate, and the rotating rod 12 drives the turntable 15 to rotate, and the turntable 15 drives the push rod 16 to rotate, and the rotation direction of the array push rod 16 is At the same time, the spacing between the bottom end faces of the array push rods 16 is circularly reduced or expanded, so that the push rods 16 can adapt to the pressing tasks of bearings of more types and specifications, and improve the practicability and convenience of the equipment. After adjusting the rotation angle of the push rods 16, turn off the first servo motor 9, start the hydraulic cylinder 3, and the hydraulic rod 4 drives the hollow disk 6 to move downward through the U-shaped fixing frame 5. The hollow disk 6 drives the bottom push rod 16 to move downward. The bottom end of the push rod 16 contacts and squeezes the top of the bearing, and the bearing is pressed into the assembly position near the center shaft to complete the pressing work.

[0026] Furthermore, two groups of fixed plates 19 are fixedly arranged in a vertically staggered position relationship with the U-shaped support frame 2 in a mirror-image manner, and a screw 20 is rotatably arranged on one side between the opposite surfaces of the two groups of fixed plates 19 through a bearing, and two groups of threads are opened on the circumferential surface of the screw 20 in a mirror-image manner, and the directions of the threads are opposite, and a second servo motor 21 is fixedly arranged on one side of one of the fixed plates 19 through a fixed frame, and the output end of the second servo motor 21 is fixedly connected to one end of the screw 20 through a coupling, and a first moving block 22 is movably arranged at the two groups of threads of the screw 20 through threaded connection, a clamping plate 23 is fixedly arranged on one side of the first moving block 22, and V-shaped fixing grooves are opened on the opposite surfaces of the two groups of clamping plates 23, and a second moving block 24 is fixedly arranged on one side of the clamping plate 23, and one side between the opposite surfaces of the fixed plates 19 is fixed A limit rod 25 is provided, and the limit rod 25 slides through the second moving block 24. A textured rubber pad 26 is fixedly provided on the clamping surface of one side of the clamping plate 23. Support legs 27 are fixedly provided at the four corners of the bottom end of the workbench 1. During operation, the central shaft rod needs to be fixed before the bearing is pressed to ensure the subsequent bearing pressing quality. First, the staff places the central shaft rod between the two groups of clamping plates 23, and then starts the second servo motor 21. The screw 20 rotates to make the two groups of first moving blocks 22 move relative to each other. At the same time, the first moving block 22 drives the clamping plate 23 to move. The two groups of clamping plates 23 approach each other or move away from each other to clamp and fix the central shaft rods of different diameters. The V-shaped groove of the clamping plate 23 and the textured rubber pad 26 squeeze the surface of the central shaft rod to improve the stability of clamping, ensure the subsequent bearing pressing accuracy, and at the same time improve the practicability and work efficiency of the equipment.

[0027] Working principle: Before the bearing is pressed, the center shaft needs to be fixed to ensure the quality of the subsequent bearing pressing. First, the staff places the center shaft between the two groups of clamps 23, and then starts the second servo motor 21. The screw 20 rotates to make the two groups of first moving blocks 22 move relative to each other. At the same time, the first moving block 22 drives the clamp 23 to move. The two groups of clamps 23 move closer to or farther away from each other to clamp and fix center shafts of different diameters. The V-shaped grooves of the clamps 23 and the textured rubber pads 26 squeeze the surface of the center shaft to improve the stability of clamping, ensure the subsequent bearing pressing accuracy, and improve the practicality and work efficiency of the equipment. After fixing the center shaft, the staff needs to replace the matching pressing head when pressing bearings of different specifications and sizes, and the pressing head device of the equipment cannot be adjusted accordingly, which reduces the convenience of using the equipment. First, the staff presses the size of the bearing according to the needs. The rotation angle of the push rod 16 is adjusted, and the first servo motor 9 is started. The rotating shaft 10 rotates to drive the driving gear 11 to rotate, and the driving gear 11 drives the array driven gear 13 to rotate synchronously in the same direction. The driven gear 13 drives the rotating rod 12 to rotate, and the rotating rod 12 drives the turntable 15 to rotate. The turntable 15 drives the push rod 16 to rotate. The rotation direction of the array push rods 16 is consistent. At the same time, the spacing between the bottom end faces of the array push rods 16 is circularly reduced or expanded, so that the push rod 16 can adapt to the bearing pressing tasks of more types and specifications, and improve the practicality and convenience of the equipment. After adjusting the rotation angle of the push rod 16, the first servo motor 9 is turned off, and the hydraulic cylinder 3 is started. The hydraulic rod 4 drives the hollow disk 6 to move downward through the U-shaped fixing frame 5, and the hollow disk 6 drives the bottom push rod 16 to move downward. The bottom end of the push rod 16 contacts and squeezes the top of the bearing, and the bearing is pressed into the assembly position near the center shaft rod to complete the pressing work.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A motor bearing pressing device, characterized in that: The invention comprises a workbench (1), wherein a U-shaped support frame (2) is fixedly arranged at the middle of the top of the workbench (1), a hydraulic cylinder (3) is fixedly arranged at the top center of the horizontal plate of the U-shaped support frame (2) through a fixed frame, a hydraulic rod (4) is movably inserted at the bottom end of the hydraulic cylinder (3), a U-shaped fixed frame (5) is fixedly arranged at the bottom end of the hydraulic rod (4), a hollow disk (6) is fixedly arranged at the bottom end of the U-shaped fixed frame (5), two groups of movable plates (7) are fixedly arranged on the circumferential surface of the hollow disk (6) in a mirror-image manner, a guide rod (8) is fixedly arranged between the bottom end of the horizontal plate of the U-shaped support frame (2) and the top of the workbench (1) in a mirror-image manner, the guide rod (8) is slidably penetrated through the movable plate (7), and a first servo motor (9) is fixedly arranged at the top center of the hollow disk (6) through a fixed frame. A rotating shaft (10) is fixedly arranged at the bottom output end of the first servo motor (9) via a coupling, the rotating shaft (10) rotates via a bearing and penetrates the interior of the hollow disk (6), a driving gear (11) is fixedly arranged at the bottom end of the rotating shaft (10), a rotating rod (12) is rotatably arranged in a circular array inside the hollow disk (6) via a bearing, a driven gear (13) is fixedly arranged on the circumferential surface of the rotating rod (12), and the driven gear (13) and the driving gear The teeth of the rotating rod (12) are meshed with each other, the bottom end of the rotating rod (12) rotates and penetrates the bottom end of the hollow disk (6), an inner tooth ring (14) is rotatably arranged on the inner wall circumference of the hollow disk (6) through a bearing, and the inner tooth ring (14) is meshed with the teeth of the driven gear (13), a rotating disk (15) is fixedly arranged at the bottom end of the rotating rod (12), and a top rod (16) is fixedly arranged at an eccentric position at the bottom end of the rotating disk (15), and the top rod (16) is in a curved shape.

2. A motor bearing pressing device according to claim 1, characterized in that: A rubber pad (17) is fixedly arranged at the bottom end of the top rod (16).

3. A motor bearing pressing device according to claim 2, characterized in that: A spring (18) is fixedly arranged between the bottom end of the movable plate (7) and the top end of the workbench (1) on the guide rod (8).

4. A motor bearing pressing device according to claim 3, characterized in that: Two sets of fixing plates (19) are fixedly arranged in a mirror image at the middle of the top of the workbench (1) in a vertically staggered position relationship with the U-shaped support frame (2); a screw rod (20) is rotatably arranged on one side between the opposite surfaces of the two sets of fixing plates (19) via a bearing; two sets of threads are opened on the circumferential surface of the screw rod (20) in a mirror image, and the directions of the threads are opposite; a second servo motor (21) is fixedly arranged on one side of one of the fixing plates (19) via a fixing frame; the output end of the second servo motor (21) is fixedly connected to the output end of the second servo motor (21) via a coupling At one end of the screw rod (20), a first movable block (22) is movably provided at two sets of threads of the screw rod (20) through threaded connection, a clamping plate (23) is fixedly provided on one side of the first movable block (22), and V-shaped fixing grooves are provided on the opposite surfaces of the two sets of clamping plates (23), a second movable block (24) is fixedly provided on one side of the clamping plate (23), and a limiting rod (25) is fixedly provided on one side between the opposite surfaces of the fixing plate (19), and the limiting rod (25) slides through the second movable block (24).

5. A motor bearing pressing device according to claim 4, characterized in that: A textured rubber pad (26) is fixedly arranged on the clamping surface of one side of the clamping plate (23).

6. A motor bearing pressing device according to claim 5, characterized in that: Support legs (27) are fixedly arranged at the four corners of the bottom end of the workbench (1).

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