Double-sided rotor automatic bearing pressing machine

Abstract

The application relates to a double-side rotor automatic bearing pressing machine, which comprises a workbench, the top of the workbench is provided with a bearing pressing platform for placing and pressing a rotor, one end of the bearing pressing platform is provided with a fixed end pressing head for pressing and placing a rotor bearing, the other end of the bearing pressing platform is provided with a movable end pressing head for pressing and placing a rotor bearing, the movable end pressing head cooperates with the fixed end pressing head to press the bearings on the two sides of the rotor, and the end, away from the bearing pressing platform, of the movable end pressing head is provided with a servo air cylinder for driving the movable end pressing head to linearly move. The servo air cylinder is adopted to drive the movable end pressing head to cooperate with the fixed end pressing head, the bearings on the two sides of the rotor on the bearing pressing platform are pressed and assembled, automatic pressing and assembling is realized, the manual operation link is reduced, the manual labor intensity is reduced, and the quality problems caused by human operation errors are reduced, meanwhile, the automatic integration of a production line is facilitated, and the overall production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of motor rotor assembly technology, and in particular to an automatic bearing press for double-sided rotors. Background Technology

[0002] In the process of motor rotor assembly, bearing press fitting is one of the key processes. Traditional processes often use manual or semi-automated equipment for single-sided step-by-step press fitting, which has problems of low efficiency and unstable accuracy. As the motor industry develops towards high efficiency and precision, the requirements for the efficiency and accuracy of rotor bearing assembly are increasing.

[0003] In the existing technology, there are usually two ways to assemble motor rotor bearings: one is to manually press them in, which is simple to operate but extremely inefficient, depends on the worker's experience and is prone to deviation; the other is to press them in steps using a single-sided hydraulic press, pressing one side of the rotor bearings in and then flipping the rotor to press the other side in. Although this improves efficiency, the operation process is cumbersome.

[0004] Regarding the aforementioned technologies, the existing technology involves pressing motor rotor bearings in a single-sided, step-by-step manner, which is cumbersome and time-consuming, resulting in low motor production efficiency. Summary of the Invention

[0005] To address the problem that existing technologies for press-fitting motor rotor bearings involve cumbersome and time-consuming steps on one side, resulting in low motor production efficiency, this application provides a double-sided automatic rotor bearing press-fitting machine.

[0006] This application provides a double-sided rotor automatic bearing pressing machine, which adopts the following technical solution: A double-sided rotor automatic bearing pressing machine includes a worktable. A pressing platform for pressing and placing the rotor is mounted on the top of the worktable. One end of the pressing platform has a fixed end pressure head for pressing and placing the rotor bearings, and the other end has a movable end pressure head for pressing and placing the rotor bearings. The movable end pressure head cooperates with the fixed end pressure head to press the bearings on both sides of the rotor. A servo cylinder is mounted on the end of the movable end pressure head away from the pressing platform to drive its linear movement. A support base is fixedly connected to the side of the servo cylinder closest to the movable end pressure head, and the bottom of the support base is connected to the worktable.

[0007] By adopting the above technical solution, the servo cylinder drives the moving end pressure head to cooperate with the fixed end pressure head, and simultaneously presses the bearings on both sides of the rotor. Compared with single-sided step-by-step pressing, the processing time is greatly shortened and the production efficiency is improved. Moreover, the double-sided collaborative operation can reduce the positioning deviation that may occur during single-sided pressing, ensure the coaxiality of the bearings and the rotor, and improve the assembly accuracy.

[0008] Preferably, the pressurizing platform includes a slide rail, a slider, and a placement block. The slide rail is fixed on the worktable, the slider is slidably connected to the slide rail, the placement block is fixedly connected above the slider, and the top of the placement block is provided with a V-groove for placing the rotor.

[0009] By adopting the above technical solution, and by setting up a slider and a slide rail, the placement block can be flexibly adjusted along the direction of the slide rail, which can adapt to the placement requirements of rotors of different lengths. At the same time, the placement block is provided with a V-groove, which utilizes the principle of triangle stability to form a reliable two-point support for the outer circle of the rotor, and can automatically center and stabilize, ensuring the stability of the rotor axis during the pressing process, avoiding the bearing pressing misalignment caused by rotor offset, and effectively ensuring the coaxiality accuracy of the bearings on both sides and the rotor.

[0010] Preferably, the fixed end pressure head includes a fixed base, the bottom of which is fixedly connected to the top of the workbench, and a cylindrical pressure head for pressing the bearing and rotor is fixedly connected to one end of the fixed base near the pressing platform. The cylindrical pressure head near the pressing platform has a placement groove for placing the bearing.

[0011] By adopting the above technical solution, the fixed end pressure head is composed of a fixed seat and a cylindrical pressure head. The fixed seat is rigidly connected to the worktable, providing a stable support foundation for the cylindrical pressure head. This ensures that the cylindrical pressure head will not shift or shake due to force during the pressing process, guaranteeing the axial stability of the bearing during pressing and avoiding assembly deviations caused by pressure head offset. At the same time, the cylindrical pressure head is provided with a placement groove for the bearing, which can play a role in pre-positioning the bearing, making the bearing coaxial with the rotor axis before pressing, reducing assembly deviations caused by bearing offset during pressing and improving pressing accuracy.

[0012] Preferably, the movable end pressure head includes a connecting plate and a movable pressure head for bearing clamping. The side of the movable pressure head near the connecting plate is fixedly connected to the connecting plate, and the side of the connecting plate away from the movable pressure head is fixedly connected to the output end of the servo cylinder. The end of the movable pressure head near the pressing platform has a groove for bearing placement.

[0013] By adopting the above technical solution, the output end of the servo cylinder is rigidly connected to the moving pressure head through the connecting plate, ensuring that the driving force of the servo cylinder can be stably and losslessly transmitted to the moving pressure head, avoiding force transmission deviation caused by loose connection, and ensuring the accuracy of pressure output during pressing. At the same time, the moving pressure head is provided with a groove for bearing placement, which can play a precise pre-positioning role for the bearing, so that the bearing always remains coaxial with the rotor axis as it moves with the moving pressure head, reducing skewing or misalignment caused by bearing offset during pressing. In conjunction with the placement groove of the fixed end pressure head, the coaxiality accuracy of the bearings on both sides is further improved.

[0014] Preferably, a guide post is fixedly connected to the side of the connecting plate near the support base, the end of the guide post away from the moving end pressure head passes through the support base, and the guide post is slidably connected to the support base.

[0015] By adopting the above technical solution, the guide column provides precise guidance for the linear movement of the moving end pressure head, effectively limiting the lateral offset or swaying that may occur during the movement of the moving pressure head, and ensuring that it always moves stably along the axial direction. This, together with the positioning of the fixed end pressure head, can further ensure the coaxiality of the double-sided bearings during press-fitting and reduce the assembly error caused by pressure head offset.

[0016] Preferably, a support block for auxiliary support of the servo cylinder is fixedly connected to the worktable, and the top of the support block is in contact with the surface of the servo cylinder.

[0017] By adopting the above technical solution, when the servo cylinder drives the moving end pressure head to perform pressing, it will bear axial reaction force. Long-term stress may cause the cylinder body to bend slightly or shake. The support block is set to effectively lift the cylinder surface from the bottom, which disperses the cylinder's own weight and stress load, avoids cylinder deformation caused by cantilever state, ensures the straightness of its drive axis, and thus maintains the stability of pressing accuracy.

[0018] Preferably, the workbench is equipped with a touch screen for controlling the operation of the servo cylinder. The touch screen is located next to the support base and is used for electrical connection to the servo cylinder.

[0019] By adopting the above technical solution, the working parameters of the servo cylinder can be quickly modified via touch screen for different models of rotors or bearings without the need for manual adjustment of the mechanical structure. This enables flexible adaptation to different pressing requirements, enhances the equipment's adaptability to multi-variety, small-batch production, and reduces changeover time.

[0020] Preferably, a pair of stops are provided on the top of the workbench, and the pressing platform, the fixed end pressure head and the moving end pressure head are all located between the stops.

[0021] By adopting the above technical solution, the stop clearly delineates the core area of ​​the pressing operation, guiding operators to pick up and place workpieces and operate the touch screen outside the stop, thus standardizing the operation process and avoiding the impact of improper operation position on the pressing process or causing safety hazards.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By using a servo cylinder to drive the moving end pressure head to cooperate with the fixed end pressure head, bearings on both sides of the rotor on the pressing platform are pressed, thereby realizing automatic pressing, reducing manual operation, reducing labor intensity and quality problems caused by human error, and at the same time, it is conducive to realizing the automation integration of the production line and improving the overall production efficiency. 2. By setting the pressing platform to consist of slide rails, sliders and placement blocks, the placement blocks can be slidably adjusted to precisely match the positions of the fixed end pressing head and the moving end pressing head, ensuring that the pressing force points of the bearings at both ends of the rotor are consistent with the rotor axis. Combined with the driving accuracy of the pressing head, this further improves the stability of the overall pressing quality. 3. By setting support blocks, the servo cylinder can be stably supported, reducing the shaking during the operation of the servo cylinder, thereby reducing the deviation in bearing pressure on both sides of the rotor. Attached Figure Description

[0023] Figure 1 This is a frontal 3D view of a double-rotor automatic bearing press; Figure 2 This is a rear-view perspective view of a double-rotor automatic bearing press. Figure 3 This is a frontal sectional perspective view of a double-rotor automatic bearing press. Figure 4 yes Figure 1 A three-dimensional view of the local structure; Figure 5 yes Figure 2 A three-dimensional view of the local structure.

[0024] Reference numerals: 1. Workbench; 2. Pressing platform; 21. Slide rail; 22. Slider; 23. Placement block; 24. V-groove; 3. Fixed end pressure head; 31. Fixed seat; 32. Cylindrical pressure head; 33. Placement groove; 4. Moving end pressure head; 41. Connecting plate; 42. Moving pressure head; 43. Groove; 5. Servo cylinder; 6. Support base; 7. Guide column; 8. Support block; 9. Touch screen; 10. Stop block. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.

[0026] This application discloses an automatic bearing press for dual-side rotors.

[0027] Reference Figure 1 and Figure 2 A double-sided rotor automatic bearing pressing machine includes a worktable 1, with a pressing platform 2 connected above the worktable 1. The pressing platform 2 is slidably connected to the worktable 1 and is used to place the rotor for pressing. The pressing platform 2 can be adjusted in position according to the length of the rotor. A fixed end pressing head 3 is fixedly connected to the left side of the top of the worktable 1. The fixed end pressing head 3 is located on one side of the pressing platform 2 and is on the same horizontal line as the pressing platform 2. A movable end pressing head 4 is provided on the other side of the pressing platform 2. The moving end pressure head 4 and the fixed end pressure head 3 are on the same horizontal line, so that the moving end pressure head 4 and the fixed end pressure head 3 cooperate to press the motor rotor on both sides of the pressing platform 2. A servo cylinder 5 is fixedly connected to the side of the moving end pressure head 4 away from the pressing platform 2, so that the servo cylinder 5 drives the moving end pressure head 4 to move linearly. A support base 6 is fixedly connected to the side of the servo cylinder 5 close to the moving end pressure head 4. The bottom of the support base 6 is fixedly connected to the worktable 1 by bolts, so that the support base 6 supports the servo motor and the moving end pressure head 4.

[0028] The above scheme places the bearing on the fixed end pressure head 3 and the moving end pressure head 4, so that the motor rotor is placed on the pressing platform 2, making the rotor and the bearing coaxial. Then, the servo cylinder 5 is activated, which drives the moving end pressure head 4 to move, so that the moving end pressure head 4 pushes the pressing platform 2 to cooperate with the fixed end pressure head 3, and presses the bearing on both sides of the motor rotor. This improves work efficiency, simplifies operation, reduces manual labor intensity and quality problems caused by human error, and facilitates the automation integration of the production line, thereby improving overall production efficiency.

[0029] refer to Figure 2 The top of the workbench 1 is equipped with a touch screen 9, which is used to control the operation of the servo cylinder 5. The touch screen 9 and the servo cylinder 5 are electrically connected by wires. When the rotor size of the bearing press changes, the operator can adjust the reference value of the servo cylinder 5 through the touch screen 9, and adjust the movement and pressing value of the moving end pressure head 4 to achieve flexible adaptation to different pressing requirements, enhance the adaptability of the equipment to multi-variety and small-batch production, and reduce changeover time.

[0030] refer to Figure 2A pair of stop blocks 10 are fixedly connected to the workbench 1 by bolts. The stop blocks 10 are set opposite to each other on the workbench 1, so that the pressing platform 2, the fixed end pressure head 3 and the moving end pressure head 4 are all located between the stop blocks 10. This separates the pressing platform 2, the fixed end pressure head 3 and the moving end pressure head 4, clearly delineates the core area of ​​the pressing operation, guides the operator to pick up and put down workpieces and operate the touch screen 9 outside the stop blocks 10, standardizes the operation process, and avoids affecting the pressing process or causing safety hazards due to improper operation position.

[0031] refer to Figure 2 A support block 8 is provided on the top of the workbench 1. The top of the support block 8 is connected to the bottom of the servo cylinder 5, so that the support block 8 provides auxiliary support for the servo cylinder 5 and makes the servo cylinder 5 work stably.

[0032] refer to Figure 2 and Figure 3 The press platform 2 includes a slide rail 21, a slider 22, and a placement block 23. There are two slide rails 21, which are bolted to the top of the workbench 1 and are symmetrically distributed. The slider 22 is slidably connected to the slide rail 21, and the bottom of the slider 22 is connected to both slide rails 21. The placement block 23 is bolted to the top of the slider 22 and is convex in shape. The top of the placement block 23 has a V-groove 24, and the motor rotor is placed in the V-groove 24, so that the placement block 23 provides two-point stable support for the rotor.

[0033] With the above scheme, the motor rotor is placed in the V-groove 24 on the placement block 23, so that the rotor is stably supported. When the servo cylinder 5 drives the moving end pressure head 4 to move, the slider 22 and the slide rail 21 can cooperate to push the overall pressing platform 2 to cooperate with the fixed end pressure head 3, thereby realizing bearing pressing. At the same time, by setting the slider 22 and the slide rail 21 to cooperate, the placement block 23 can be flexibly adjusted along the direction of the slide rail 21, which can adapt to the placement requirements of rotors of different lengths.

[0034] Reference 3 and Figure 4 The fixed end pressure head 3 includes a fixed base 31. The bottom of the fixed base 31 is fixedly connected to the workbench 1 by bolts. The fixed base 31 has a through hole for the rotor to use on the output shaft. A cylindrical pressure head 32 is fixedly connected to the fixed base 31. The central axis of the cylindrical pressure head 32 coincides with the central axis of the through hole. A bearing is provided on the end of the cylindrical pressure head 32 away from the fixed base 31. The bearing is placed in the placement groove 33 so that the central axis of the bearing is collinear with the central axis of the cylindrical pressure head 32.

[0035] The above scheme places the bearing on the cylindrical pressure head 32 and pre-positions the bearing, making the bearing coaxial with the rotor axis before pressing. This improves the pressing accuracy of the bearing and reduces assembly deviations caused by bearing misalignment during the pressing process.

[0036] refer to Figure 5 The movable end pressure head 4 includes a connecting plate 41 and a movable pressure head 42. The side of the connecting plate 41 closest to the servo cylinder 5 is fixedly connected to the servo cylinder 5, and the side of the connecting plate 41 furthest from the servo cylinder 5 is fixedly connected to the movable pressure head 42. This allows the servo cylinder 5 to drive the movable pressure head 42 to move through the connecting plate 41, so that the movable pressure head 42 cooperates with the cylindrical pressure head 32 on the fixed end pressure head 3. The side of the movable pressure head 42 furthest from the connecting plate 41 has a groove 43 for placing the bearing. The shape of the groove 43 is adapted to the shape of the bearing, so that the central axis of the groove 43 is collinear with the axis of the movable pressure head 42 and the bearing. At the same time, a guide post 7 is fixedly connected to the side of the connecting plate 41 closest to the support base 6. The end of the guide post 7 furthest from the connecting plate 41 passes through the support base 6, so that the support base 6 horizontally limits the guide post 7.

[0037] By using the above method, the bearing is placed in the groove 43 on the moving pressure head 42 to pre-position the bearing, so that the bearing is coaxial with the rotor axis before pressing. This can improve the pressing accuracy of the bearing during the pressing process, reduce the deviation between the rotor and the moving pressure head 4, and thus improve the production quality. At the same time, the guide column 7 guides the moving pressure head 42 horizontally to ensure the stable movement of the moving pressure head 42 and reduce the movement deviation.

[0038] The implementation principle of this application embodiment is as follows: In implementation, the motor rotor is placed on the placement block 23 on the pressing platform 2, so that the motor rotor is located in the V-groove 24 on the placement block 23, so that it provides stable support for the motor rotor. Then, a pair of bearings are placed in the groove 43 on the moving end pressing head 4 and the placement groove 33 on the fixed end pressing head 3, respectively. Then, the drive shaft on the rotor is inserted into the cylindrical pressing head 32 and the moving pressing head 42, so that the axis of the bearing and the drive shaft are collinear. Then, the servo cylinder 5 is activated, and the servo cylinder 5 drives the moving end pressing head 4 to move, so that the moving end pressing head 4 and the fixed end pressing head 3 cooperate to press the bearings on both sides of the rotor. Thus, the operation is simple, automatic pressing is achieved, manual operation is reduced, labor intensity is reduced, and quality problems caused by human operation errors are reduced. At the same time, it is conducive to realizing the automation integration of the production line and improving the overall production efficiency.

[0039] The above are all preferred embodiments 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 double-sided rotor automatic bearing press, comprising a worktable (1), characterized in that, The top of the workbench (1) is provided with a pressing platform (2) for pressing and placing the rotor. A fixed end pressure head (3) for pressing the rotor bearing is provided on one side of the pressing platform (2). A movable end pressure head (4) for pressing the rotor bearing is provided on the other side of the pressing platform (2). The movable end pressure head (4) cooperates with the fixed end pressure head (3) to press the bearings on both sides of the rotor. A servo cylinder (5) for driving the movable end pressure head (4) to move is provided at the end of the movable end pressure head (4) away from the pressing platform (2). A support base (6) is fixedly connected to the side of the servo cylinder (5) near the movable end pressure head (4). The bottom of the support base (6) is connected to the workbench (1).

2. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, The press platform (2) includes a slide rail (21), a slider (22) and a placement block (23). The slide rail (21) is fixed on the workbench (1). The slider (22) is slidably connected to the slide rail (21). The placement block (23) is fixedly connected above the slider (22), and a V-groove (24) for placing the rotor is provided on the top of the placement block (23).

3. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, The fixed end pressure head (3) includes a fixed seat (31), the bottom of which is fixedly connected to the top of the workbench (1). A cylindrical pressure head (32) for pressing the bearing and the rotor is fixedly connected to one end of the fixed seat (31) near the pressing platform (2). A placement groove (33) for placing the bearing is opened at one end of the cylindrical pressure head (32) near the pressing platform (2).

4. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, The movable end pressure head (4) includes a connecting plate (41) and a movable pressure head (42) for pressing the bearing. The movable pressure head (42) is fixedly connected to the connecting plate (41) on the side close to the connecting plate (41), and the side of the connecting plate (41) away from the movable pressure head (42) is fixedly connected to the output end of the servo cylinder (5). The movable pressure head (42) has a groove (43) for placing the bearing at the end close to the pressing platform (2).

5. The automatic bearing press with double-sided rotors according to claim 4, characterized in that, The connecting plate (41) is fixedly connected to a guide post (7) on the side near the support base (6), and the end of the guide post (7) away from the moving end pressure head (4) passes through the support base (6).

6. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, A support block (8) for auxiliary support of the servo cylinder (5) is fixedly connected to the workbench (1), and the top of the support block (8) is in contact with the surface of the servo cylinder (5).

7. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, The workbench (1) is equipped with a touch screen (9) for controlling the operation of the servo cylinder (5). The touch screen (9) is located next to the support base (6) and is used for electrical connection of the servo cylinder (5).

8. The automatic bearing press with double-sided rotors according to claim 1, characterized in that, The top of the workbench (1) is provided with a pair of stops (10), and the pressing platform (2), the fixed end pressure head (3) and the moving end pressure head (4) are all located between the stops (10).

Images