Rotor bearing press-in equipment

Abstract

The utility model relates to the technical field of motor manufacturing, in particular to rotor bearing press-in equipment which comprises a machine table, a fixing base, a first supporting rod, a second supporting rod and a power piece, the fixing base is arranged on the top face of the machine table, a sliding groove is formed in the top face of the fixing base, a workpiece is connected in the sliding groove in a matched and sliding mode, and the first supporting rod is fixed to one end of the machine table; the second supporting rod is movably installed at the corresponding end of the first supporting rod, the output end of the power piece is assembled with the second supporting rod, bearings are placed in the first supporting rod and the second supporting rod respectively, and the power piece is used for driving the second supporting rod to be away from or close to the first supporting rod, so that the bearings are pressed into the end of a workpiece, and the stability when the fixed machine shell is pressed into the bearings is improved. The mounting quality is ensured.

Description

Technical Field

[0001] This application relates to the technical field of electric motor manufacturing, and in particular to a rotor bearing press-fit device. Background Technology

[0002] Motor bearings are specialized bearings used in electric motors or motors. They guide the rotation of the shaft and also support rotating components on the shaft. As one of the key components of an electric motor, the installation quality of the motor bearings directly affects the motor's performance and service life.

[0003] In existing technologies, common press-fitting equipment is typically used to press motor bearings into the housing. One method involves using simple hand tools, where workers rely on their own strength to operate the tools and press the bearing into the housing. While this method is low-cost, it is labor-intensive and makes it difficult to ensure uniform pressing force and precision. Another method uses basic hydraulic or pneumatic pressing equipment. These devices provide some power, but lack effective measures for fixing the housing and bearing. Some equipment simply places the housing on a workbench and relies on friction for fixation, while the bearing is arbitrarily placed in position, lacking precise positioning and stable support.

[0004] However, traditional press-fitting equipment has significant drawbacks. These devices are not stable enough when fixing the housing and bearings, and are prone to wobbling during the press-fitting process. Once wobbling occurs, the motor bearings will shift during press-fitting, failing to be accurately installed in their intended positions on the housing. This shift severely affects the quality of motor manufacturing, potentially leading to a series of problems during operation, such as vibration, increased noise, and shortened lifespan, thus reducing the overall performance and reliability of the motor. Summary of the Invention

[0005] To improve the stability of pressing bearings into the fixed housing and ensure installation quality, this application provides a rotor bearing pressing device.

[0006] This application provides a rotor bearing press-in device, which adopts the following technical solution:

[0007] A rotor bearing pressing device includes a machine base, a fixed base, a first support rod and a second support rod, and a power component. The fixed base is disposed on the top surface of the machine base, and a sliding groove is formed on the top surface of the fixed base. The workpiece is adapted to slide in the sliding groove. The first support rod is fixed to one end of the machine base, and the second support rod is movably installed at the corresponding end of the first support rod. The output end of the power component is assembled with the second support rod. Bearings are respectively placed inside the first support rod and the second support rod. The power component is used to drive the second support rod away from or towards the first support rod, so that the bearing is pressed into the end of the workpiece.

[0008] By adopting the above technical solution, the machine base, fixed seat and support rod work together to provide a stable operating platform for pressing in the rotor bearing. The sliding groove on the fixed seat can adapt to the workpiece and provide support and guidance for the workpiece. The power component acts as a power source to drive the second support rod to move, and at the same time drive the workpiece to move closer to the first support rod. When the maximum stroke is reached, the bearings in the first support rod and the second support rod are respectively assembled with the corresponding end of the workpiece.

[0009] Compared with existing technologies, this application can provide stable support for the workpiece, provide more precise positional constraints, improve the quality of the bearing and the workpiece, and the installation process is easy to implement, easy to replicate, improves work efficiency, reduces labor intensity, and better meets production needs.

[0010] Preferably, the inner wall of the sliding groove of the fixed seat is provided with a guide groove, and a guide member is slidably connected in the guide groove, with the outer wall of the workpiece abutting against the guide member.

[0011] By adopting the above technical solution, the guide groove provides a sliding track for the guide component, and the guide component ensures the correct positioning of the workpiece in the groove by abutting against the outer wall of the workpiece, reducing the offset or rotation of the workpiece during the pressing process and improving the assembly accuracy.

[0012] Preferably, the guide includes a spring, a ball, and a slider. The spring is connected between the ball and the slider, the slider is adapted to slide in the guide groove, and the surface of the ball makes line contact with the workpiece.

[0013] By adopting the above technical solution, the spring connects the ball bearing and the slider, allowing the ball bearing to move freely within a certain range to adapt to workpieces of different sizes. At the same time, it allows for slight installation errors in the workpiece. The line contact between the ball bearing and the workpiece reduces frictional resistance and minimizes damage to the workpiece. The sliding contact between the slider and the guide groove provides stable support and guidance for the workpiece, enabling stable sliding of the workpiece.

[0014] Preferably, it further includes a directional frame and a push plate. The directional frame includes a directional rod and a frame body. The frame body is fixed to one side of the power component. The push plate is slidably connected to the directional rod. The output end of the power component is assembled with the push plate. The second support rod is fixed on the side of the push plate near the first support rod.

[0015] By adopting the above technical solution, the combined action of the orientation frame and the push plate enables the power component to precisely control the movement of the second support rod through the push plate, thereby precisely controlling the pressing process of the bearing, improving the ease of operation and pressing accuracy of the equipment.

[0016] Preferably, the surface of the first support rod is provided with a U-shaped groove, and the bearing is installed in the U-shaped groove.

[0017] By adopting the above technical solution, a U-shaped groove is opened on the surface of the first support rod. The design of the U-shaped groove allows the bearing to be placed stably on the first support rod, reducing the possibility of bearing displacement during the pressing process, thereby improving the assembly accuracy and stability, and providing convenience for bearing installation.

[0018] Preferably, the bottom of the U-shaped groove is provided with a retaining groove, the width of which is consistent with the width of the bearing.

[0019] By adopting the above technical solution, a slot with the same width as the bearing is opened at the bottom of the U-shaped groove. The slot can ensure that the bearing always maintains the correct position during the pressing process, so as to avoid assembly errors caused by the movement or rotation of the bearing, and ensure the assembly quality of the bearing.

[0020] Preferably, there are several directional rods, and the several directional rods are evenly distributed on the frame.

[0021] By adopting the above technical solution, several directional rods are evenly distributed on the frame, which makes the push plate stable during movement, enhances the stability and smoothness of the push plate sliding, and helps to improve the stability and accuracy of bearing pressing.

[0022] Preferably, a limiting member is installed on one side of the fixed base, and the limiting member is used to limit the maximum stroke of the workpiece.

[0023] By adopting the above technical solution, a limiting component is installed on one side of the fixed seat, which provides an effective limit for the maximum stroke of the workpiece, preventing the workpiece from exceeding the predetermined range during the pressing process, and playing a role in protecting the safety of the equipment and the workpiece.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Compared with the prior art, this application can provide stable support for the workpiece, provide more precise position constraints, improve the quality of the bearing and the workpiece, and the installation process is easy to implement, easy to replicate, improves work efficiency, reduces labor intensity, and is more in line with production needs;

[0026] 2. The coordinated action of the orientation frame and the push plate enables the power component to precisely control the movement of the second support rod through the push plate, thereby precisely controlling the pressing process of the bearing, improving the ease of operation and pressing accuracy of the equipment.

[0027] 3. The guide groove provides a sliding track for the guide component, which in turn ensures the correct positioning of the workpiece within the groove by abutting against the outer wall of the workpiece, reducing workpiece offset or rotation during the pressing process and improving assembly accuracy. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the rotor bearing pressing device in the embodiments of this application.

[0029] Figure 2 yes Figure 1 A partial sectional view.

[0030] Explanation of reference numerals in the attached drawings: 1. Machine base; 2. Fixed base; 21. Slide groove; 211. Guide groove; 22. Limiting component; 3. First support rod; 31. U-shaped groove; 4. Second support rod; 5. Power component; 6. Guide component; 61. Spring; 62. Ball bearing; 63. Slider; 7. Orientation frame; 71. Orientation rod; 72. Frame body; 8. Push plate; 91. Workpiece; 92. Bearing. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0032] This application discloses a rotor bearing pressing device.

[0033] Reference Figure 1 A rotor bearing pressing device includes a machine base 1 and a fixed base 2. A guide frame 7 and a push plate 8 are installed on the top surface of the machine base 1. The guide frame 7 includes guide rods 71 ​​and a frame body 72. There are several guide rods 71, which are evenly distributed on the frame body 72. Specifically, three guide rods 71 ​​can be selected and arranged in a triangle so that the extension direction of the guide rods 71 ​​is consistent with the length direction of the machine base 1. The three corners of the push plate 8 are respectively slidably connected to the three guide rods 71, so that the push plate 8 remains stable during movement and enhances the stability and smoothness of the sliding of the push plate 8.

[0034] A power component 5 is provided on one side of the frame 72. The output end of the power component 5 is assembled with the push plate 8. This application does not specifically limit the structure of the power component 5; a linear cylinder or a hydraulic cylinder can be selected to drive the push plate 8 to perform linear motion. A second support rod 4 is fixed on the side of the push plate 8 away from the power component 5, and a first support rod 3 is fixed on one side of the frame 72, so that the first support rod 3 and the second support rod 4 are distributed opposite each other on the same horizontal line. The first support rod 3 and the second support rod 4 have the same shape and structure. A U-shaped groove 31 is opened on the surface of the first support rod 3, and the bearing 92 is installed in the U-shaped groove 31. Specifically, a slot is opened at the bottom of the U-shaped groove 31, and the width of the slot is consistent with the width of the bearing 92. The slot at the bottom of the U-shaped groove 31, which is consistent with the width of the bearing 92, allows the bearing 92 to be stably placed on the first support rod 3 or the second support rod 4, reducing the possibility of the bearing 92 shifting during the pressing process, thereby improving the assembly accuracy and stability and facilitating the installation of the bearing 92.

[0035] Reference Figure 1 and Figure 2 The fixed seat 2 is set on the top surface of the machine base 1 and is located between the first support rod 3 and the second support rod 4. The top surface of the fixed seat 2 is provided with a sliding groove 21, and the workpiece 91 is adapted to slide in the sliding groove 21. A limiting member 22 is installed on one side of the fixed seat 2. The limiting member 22 is used to limit the maximum stroke of the workpiece 91.

[0036] The power component 5 acts as a power source to drive the push plate 8 and the second support rod 4 to move. When the second support rod 4 presses against one end of the workpiece 91, the power component 5 continuously provides thrust, causing the workpiece 91 to slide along the slide groove 21 until the end of the shaft of the workpiece 91 reaches the end of the U-shaped groove 31 at the first support rod 3. The outer wall of the workpiece 91 abuts against the limiting component 22. The limiting component 22 is set to provide an effective limit on the maximum stroke of the workpiece 91, preventing the workpiece 91 from exceeding the predetermined range during the pressing process, thus protecting the safety of the equipment and the workpiece 91.

[0037] More specifically, another solution can be provided: a guide groove 211 is formed on the inner wall of the slide groove 21 of the fixed seat 2, and a guide member 6 is slidably connected in the guide groove 211. The outer wall of the workpiece 91 abuts against the guide member 6. The guide member 6 mentioned here can be a ball bearing 62 structure or a slider 63 structure. It is required that the shape and structure of the guide groove 211 be adapted to the ball bearing 62 or slider 63, and the ball bearing 62 or slider 63 must be adapted to abut against the corresponding workpiece 91. The guide member 6 provides guidance and reduces friction, so that the workpiece 91 can slide accurately along a trajectory, ensuring the assembly accuracy and stability of the workpiece 91 during the processing.

[0038] More specifically, another solution can be provided, in which the guide 6 can also include a spring 61, a ball 62, and a slider 63. The spring 61 is connected between the ball 62 and the slider 63, the slider 63 is adapted to slide in the guide groove 211, and the surface of the ball 62 makes line contact with the workpiece 91.

[0039] Spring 61 connects ball 62 and slider 63, allowing ball 62 to move freely within a certain range to adapt to workpieces 91 of different sizes, while allowing for slight installation errors in workpiece 91. The line contact between ball 62 and workpiece 91 reduces frictional resistance and minimizes damage to workpiece 91. The sliding contact between slider 63 and guide groove 211 provides stable support and guidance for workpiece 91, enabling stable sliding of workpiece 91.

[0040] In this application, the machine base 1, the fixed base 2 and the support rod work together to provide a stable operating platform for pressing in the rotor bearing 92. The slide groove 21 on the fixed base 2 can be adapted to the workpiece 91, providing support and guidance for the workpiece 91. The power component 5 serves as a power source, driving the second support rod 4 to move, while simultaneously moving the workpiece 91 closer to the first support rod 3. When the maximum stroke is reached, the bearings 92 in the first support rod 3 and the second support rod 4 are respectively assembled with the corresponding ends of the workpiece 91.

[0041] Compared with the prior art, this application can provide stable support for workpiece 91, provide more precise position constraints, improve the quality of bearing 92 and workpiece 91, and the installation process is easy to implement, easy to replicate, improves work efficiency, reduces labor intensity, and better meets production needs.

[0042] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotor bearing press-in apparatus, characterized by, The system includes a machine base (1), a fixed base (2), a first support rod (3) and a second support rod (4), and a power component (5). The fixed base (2) is located on the top surface of the machine base (1), and a sliding groove (21) is provided on the top surface of the fixed base (2). The workpiece (91) is adapted to slide in the sliding groove (21). The first support rod (3) is fixed at one end of the machine base (1), and the second support rod (4) is movably installed at the corresponding end of the first support rod (3). The output end of the power component (5) is assembled with the second support rod (4). Bearings (92) are respectively placed inside the first support rod (3) and the second support rod (4). The power component (5) is used to drive the second support rod (4) away from or close to the first support rod (3), so that the bearings (92) are pressed into the end of the workpiece (91).

2. A rotor bearing press-in apparatus according to claim 1, wherein The inner wall of the slide groove (21) of the fixed seat (2) is provided with a guide groove (211), and a guide member (6) is slidably connected in the guide groove (211). The outer wall of the workpiece (91) abuts against the guide member (6).

3. A rotor bearing press-in apparatus according to claim 2, wherein, The guide (6) includes a spring (61), a ball (62), and a slider (63). The spring (61) is connected between the ball (62) and the slider (63). The slider (63) is adapted to slide in the guide groove (211). The surface of the ball (62) makes line contact with the workpiece (91).

4. A rotor bearing press-in apparatus according to claim 1, wherein It also includes a directional frame (7) and a push plate (8). The directional frame (7) includes a directional rod (71) and a frame (72). The frame (72) is fixed to one side of the power member (5). The push plate (8) is slidably connected to the directional rod (71). The output end of the power member (5) is assembled with the push plate (8). The second support rod (4) is fixed on the side of the push plate (8) near the first support rod (3).

5. A rotor bearing press-in apparatus according to any one of claims 1 to 4, wherein The surface of the first support rod (3) is provided with a U-shaped groove (31), and the bearing (92) is installed in the U-shaped groove (31).

6. A rotor bearing press-in apparatus according to claim 5, wherein, The bottom of the U-shaped groove (31) is provided with a slot, the width of which is consistent with the width of the bearing (92).

7. A rotor bearing press-in apparatus according to claim 4, wherein There are several directional rods (71), and the several directional rods (71) are evenly distributed on the frame (72).

8. A rotor bearing press-in apparatus according to claim 5, wherein, A limiting member (22) is installed on one side of the fixed base (2), and the limiting member (22) is used to limit the maximum stroke of the workpiece (91).

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