A de-shafting device and method for a motor rotor
Patent Information
- Application Number
- CN202611035762.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-13
- Publication Date
- 2026-10-13
AI Technical Summary
[0003]现有电机转子的脱轴存在诸多缺点：(1)人工操作时其电机转子的加压、拧紧、脱轴等工序均是单独工序，人工一次多台同时作业，无法实现单台电机转子连续一体式加工，工序转运耗时久，工位布局分散，场地利用率低；(2)脱轴完全依靠人工手动操作，依靠转子自重自然脱轴，卡滞工件需人工手持铁锤敲击辅助脱卸，单工件加工周期长，产出量难以提升，无法匹配大批量流水线生产节拍；(3)人工吊装转子与工艺轴组件作业，吊装滑落、锤击误伤人员风险高；锤击外力易造成电机转子铁芯变形、轴孔磕碰、电机转子表面损伤，产品尺寸精度、外观质量无法稳定管控，不良品率偏高；(4)该工序重复性强、劳动强度大，需长期配置专职操作人员，人力成本持续上涨；纯人工作业无数据采集、工序记录功能，无法实现生产全流程追溯，质量问题溯源困难
1、本装置与自动加压拧紧装置配合实现电机转子的加压、拧紧及脱轴工序一体化连续加工，电机转子一次装夹即可完成加压拧紧、自动脱轴全流程，实现单台电机转子连续自动化作业，通过自动化连续作业替代人工操作，可将人工操作作业减少98%以上，显著提高生产效率；
Smart Images
Figure CN122908540A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of automated motor processing technology, specifically relating to an integrated processing device and method for automatic unloading of process shafts after motor rotor assembly. Background Technology
[0002] The rotor tightening and shaft removal processes for motors are characterized by high operational risks, large manpower requirements, and high repetitive intensity, which have long constrained the production efficiency and product consistency of motor components. With the popularization of intelligent manufacturing equipment and the continuous rise in labor costs in China, motor manufacturers have a rigid demand for the automation, process optimization, cost reduction and efficiency improvement, and safe production of the rotor tightening and shaft removal processes.
[0003] The existing motor rotor detachment process has many disadvantages: (1) When operating manually, the motor rotor pressing, tightening and detachment processes are all separate processes. Multiple machines are operated at the same time, which makes it impossible to achieve continuous integrated processing of a single motor rotor. The process transfer takes a long time, the workstation layout is scattered, and the site utilization rate is low. (2) Dedetachment relies entirely on manual operation. The rotor detaches naturally by its own weight. If the workpiece is stuck, it needs to be manually hammered to assist in the removal. The processing cycle of a single workpiece is long, the output is difficult to increase, and it cannot match the production rhythm of a large batch production line. (3) Manual hoisting of the rotor and process shaft assembly is prone to slippage and accidental injury to personnel by hammering. The hammering force can easily cause deformation of the motor rotor core, collision of the shaft hole, and damage to the surface of the motor rotor. The product size accuracy and appearance quality cannot be stably controlled, and the defect rate is high. (4) This process is highly repetitive and labor-intensive. It requires long-term dedicated operators, and the labor cost continues to rise. Pure manual operation has no data collection and process recording functions, which makes it impossible to achieve full-process traceability of production and makes it difficult to trace the source of quality problems. Therefore, the manual shaft separation process is difficult to meet the scale requirements of modern manufacturing, and there is an urgent need for a motor rotor shaft separation device that is highly automated, safe and reliable, and can be monitored by data throughout the process. Summary of the Invention
[0004] Technical problem to be solved: In view of the shortcomings of the background technology, the present invention provides a shaft removal device and method for motor rotor, which realizes the fully automatic hydraulic shaft removal function, realizes continuous integrated processing of a single motor rotor, greatly reduces manual intervention, improves production efficiency, processing safety and product consistency, and at the same time realizes the full collection of processing data and process traceability, meeting the needs of intelligent manufacturing upgrade of motor.
[0005] Technical solution: The present invention provides a shaft-detaching device for an electric motor rotor, comprising a support base, a shaft-detaching mechanism, and a hydraulic oil station; The shaft removal mechanism includes a hydraulic lifting mechanism and a non-standard clamping fixture correspondingly set on the support base. The non-standard clamping fixture carries the motor rotor and can be transferred to the shaft removal station of the hydraulic lifting mechanism. The hydraulic lifting mechanism includes a support base plate, a lifting mounting plate, a support top plate, a central hydraulic cylinder, a detachment jacking shaft, and lateral hydraulic cylinders; the support base plate is fixedly mounted on the support base, and multiple sets of guide rods are provided between the support base plate and the support top plate; the lifting mounting plate is slidably connected to the guide rods through guide sleeves. The central hydraulic cylinder is vertically fixed at the bottom of the support base plate, and the detachment top shaft is located at the top of the piston rod of the central hydraulic cylinder; the lateral hydraulic cylinder includes two sets arranged on the support base plate and symmetrically on both sides of the central hydraulic cylinder, and the output end of the lateral hydraulic cylinder is connected to the lifting mounting plate; a displacement sensor is provided between the support base plate and the lifting mounting plate on one side of the lateral hydraulic cylinder. The lifting mounting plate has a first detachment hole, and the supporting top plate has a second detachment hole coaxial with the first detachment hole; the detachment top shaft is lifted by the piston rod of the central hydraulic cylinder and passes through the first detachment hole, pushing out the positioning mandrel at the center of the motor rotor through the second detachment hole to complete the detachment operation.
[0006] Preferably, the non-standard clamping fixture includes a support tray, a process tray, a process pressure plate, connecting bolts, and a positioning mandrel; the process tray is correspondingly disposed on the support tray, the process pressure plate is coaxially disposed above the process tray, the positioning mandrel is correspondingly disposed on the axis of the process tray, and the process tray is provided with multiple connecting bolts along the circumference of the positioning mandrel; multiple laminations constituting the motor rotor are sequentially coaxially fitted on the outside of the positioning mandrel and placed between the process tray and the process pressure plate, and the connecting bolts connect and fasten the process tray, the motor rotor laminations, and the lower process pressure plate.
[0007] Preferably, the support base is a box-type structure; the central hydraulic cylinder and the lateral hydraulic cylinder are housed within the box-type structure; the lifting mounting plate is raised with the lateral hydraulic cylinder and cooperates with the support top plate to complete the initial positioning of the motor rotor to be detached; then the detachment top shaft is lifted with the central hydraulic cylinder to detach the positioning mandrel of the motor rotor.
[0008] Preferably, a lifting push plate is provided between the top of the detachment shaft and the top of the piston rod of the central hydraulic cylinder. The bottom surface of the lifting push plate is symmetrically provided with limit guide rods on both sides of the central hydraulic cylinder, and a guide sleeve for sliding installation of the limit guide rods is provided on the support base plate.
[0009] Preferably, the lifting mounting plate is provided with corresponding through-beam sensors on both sides of the non-standard clamping fixture. After the through-beam sensors detect that the non-standard clamping fixture and the motor rotor are in place, the central hydraulic cylinder and the side hydraulic cylinder are activated to perform corresponding actions.
[0010] Preferably, the detachable top shaft is a segmented and detachable structure, including a top shaft rod and a pin; The top and bottom ends of the top shaft are respectively provided with a first mounting end and a second mounting end; The lower end of the ejector pin is provided with a third mounting end that is detachable from the second mounting end, and the top end of the ejector pin forms an insertion end face, the insertion end face matching the shape of the bottom end of the positioning mandrel.
[0011] Preferably, the shaft-detaching mechanism is equipped with a hydraulic oil station, which is connected to the central hydraulic cylinder and the side hydraulic cylinder respectively through high-pressure oil pipes; Preferably, the shaft removal device is equipped with an electronic control system. The electronic control system integrates sensor signal acquisition, hydraulic action control, and processing data storage modules. The processing data collected by the displacement sensor and the through-beam sensor is uploaded to the workshop MES system through the electronic control system to store the shaft removal process parameters and trace the entire product process.
[0012] Preferably, the support base is provided with protective plates on three sides around the circumference of the shaft removal mechanism, and electronic grids are provided on both sides of the front working area of the shaft removal mechanism; the electronic grids are safety photoelectric gratings, which are electrically connected to the electrical control system. When the electronic grids detect foreign objects intruding into the processing area, they control the equipment to stop urgently and cut off the hydraulic power.
[0013] The present invention also discloses a method for detaching a motor rotor from its shaft, employing the aforementioned detachment device, comprising the following steps: Step 1: Using a robotic arm, place the non-standard clamping fixture carrying the motor rotor onto the shaft-detaching station of the hydraulic lifting mechanism; Step 2: Start the lateral hydraulic cylinder of the hydraulic jacking mechanism to drive the lifting mounting plate and its non-standard clamping fixture to continue jacking until it stops when it touches the limit of the support top plate. At this time, the top of the positioning mandrel is aligned with the second detachment hole; the upward pressure of the lateral hydraulic cylinder is 20KN. Step 3: Then, activate the central hydraulic cylinder of the hydraulic lifting mechanism to push the jacking shaft through the first jacking hole upwards and against the bottom end of the positioning mandrel until the positioning mandrel comes out of the second jacking hole; the upward pressure of the central hydraulic cylinder is 20KN; Step 4: Use a robotic arm to grip the positioning mandrel and remove it from the hydraulic lifting mechanism; Step 5: Control the central hydraulic cylinder and lateral hydraulic cylinder of the hydraulic lifting mechanism to move down to their original positions, and then use a robotic arm to pick up and transfer the non-standard clamping fixture.
[0014] Compared with the prior art, the present invention has at least the following beneficial technical effects: 1. This device, in conjunction with an automatic pressure tightening device, enables integrated continuous processing of the motor rotor's pressure tightening and shaft removal processes. The entire process of pressure tightening and automatic shaft removal can be completed in a single clamping of the motor rotor, realizing continuous automated operation of a single motor rotor. By replacing manual operation with automated continuous operation, manual operation can be reduced by more than 98%, significantly improving production efficiency. 2. The device is highly automated, requiring only manual assistance for loading and unloading materials, which greatly reduces the manpower required for the job and alleviates the labor shortage problem in highly repetitive and dangerous positions. 3. This device relies on the precise hydraulic lifting of the central hydraulic cylinder to remove the shaft, replacing the manual self-weight removal and hammer-assisted method. The shaft removal action is standardized and the cycle is stable, which greatly shortens the shaft removal cycle of a single motor rotor and is suitable for mass production on the assembly line. 4. The device is equipped with a fully enclosed protective screen and electronic grid safety interlock to achieve isolation of the processing area; the entire process is hydraulically automated to push and release the shaft, eliminating manual hoisting and hammering operations, thus eliminating the safety hazards of falling during hoisting and hammering injuries from the root. 5. The non-standard clamping fixtures of this device can be quickly replaced with positioning mandrels, process trays, and process pressure plates, and are compatible with various specifications of motor rotors; the hydraulic jacking force is precise and controllable, eliminating manual hammer impact loads and avoiding damage to the mandrel and shaft hole of the motor rotor; the processing displacement and stroke parameters are collected in real time using pressure sensors and displacement sensors, and the processing force values are standardized, significantly improving the consistency of product size and appearance and greatly reducing the defect rate; 6. The device is highly automated, with a compact workstation that saves space and is compatible with different motor rotor models. Displacement sensors and through-beam sensors collect processing data in real time, connect to the factory's MES system, and store the parameters of each rotor's shaft removal process, enabling full-process data traceability and control of product quality. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the shaft-detaching device of the present invention (showing the hydraulic oil station); Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the hydraulic jacking mechanism; Figure 3 for Figure 2 A two-dimensional structural diagram of the hydraulic lifting mechanism from a second perspective. Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of a non-standard clamping fixture (showing the motor rotor); Figure 5 for Figure 1 Schematic diagram of the docking structure between the central detachment shaft and the positioning mandrel; Figure 6 for Figure 5Schematic diagram of the top shaft structure of the central detachment top shaft; Figure 7 for Figure 5 A schematic diagram of the ejector pin structure of the central detachment shaft.
[0016] Figure Descriptions: 100. Shaft-detaching device; 1. Support base; 2. Shaft-detaching mechanism; 3. Hydraulic oil station; 4. Protective screen plate; 5. Electronic grille; 6. Hydraulic lifting mechanism; 61. Support base plate; 62. Lifting mounting plate; 621. First shaft-detaching hole; 63. Support top plate; 631. Second shaft-detaching hole; 632. Limiting plate; 64. Guide rod; 65. Guide sleeve; 66. Central hydraulic cylinder; 67. Lifting push plate; 68. Through-beam sensor; 6 9. Top shaft; 691. Top shaft body; 692. First mounting end; 693. Second mounting end; 694. Third mounting end; 695. Ejector pin; 696. Ejector end face; 610. Lateral hydraulic cylinder; 611. Limiting guide rod; 612. Guide sleeve; 613. Displacement sensor; 7. Non-standard clamping fixture; 71. Support tray; 72. Process tray; 73. Process pressure plate; 74. Connecting bolt; 75. Positioning mandrel; 8. Motor rotor. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following description is provided in conjunction with the appendix. Figures 1-7 The technical solutions of the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.
[0018] Example 1: As Figures 1-2 As shown, this invention discloses a shaft-detaching device for a motor rotor. The shaft-detaching device 100 includes a support base 1, a shaft-detaching mechanism 2, and a hydraulic oil station 3. The shaft-detaching mechanism 2 includes a hydraulic lifting mechanism 6 and a non-standard clamping fixture 7 correspondingly arranged on the support base 1. The non-standard clamping fixture 7 carries the motor rotor 8 and can be transferred to the shaft-detaching position of the hydraulic lifting mechanism 6. The support base 1 has a box-type structure with storage space inside to accommodate electrical components. The shaft-detaching mechanism 2 is equipped with a hydraulic oil station 3, which is connected to the central hydraulic cylinder 66 and the lateral hydraulic cylinder 610 of the hydraulic lifting mechanism 6 through high-pressure oil pipes to provide hydraulic power.
[0019] like Figure 2 and Figure 3As shown, the hydraulic lifting mechanism 6 includes a support base plate 61, a lifting mounting plate 62, a support top plate 63, a central hydraulic cylinder 66, a detachment jacking shaft 69, and a lateral hydraulic cylinder 610. The support base plate 61 is fixedly mounted on the support base 1. Multiple sets of guide rods 64 are provided between the support base plate 61 and the support top plate 63. The guide rods 64 include four rods corresponding to the four corners of the support base plate 61 and the support top plate 63. The lifting mounting plate 62 is slidably connected to the guide rods 64 through a guide sleeve 65. A central hydraulic cylinder 66 is vertically fixed at the bottom of the support base plate 61, corresponding to a box-shaped structure within the support base 1. A detachment top shaft 69 is located at the top of the piston rod of the central hydraulic cylinder 66. Two sets of lateral hydraulic cylinders 610 are mounted on the support base plate 61 and symmetrically arranged on both sides of the central hydraulic cylinder 66. The output end of the lateral hydraulic cylinders 610 is connected to the lifting mounting plate 62. A displacement sensor 613 is installed between the support base plate 61 and the lifting mounting plate 62, located on one side of the lateral hydraulic cylinders 610. The displacement sensor 613 collects the lateral clamping displacement value in real time. The support base 1 is a box-shaped structure; the central hydraulic cylinder 66 and the lateral hydraulic cylinders 610 are housed within the box-shaped structure. The lifting mounting plate 62 has a first detachment hole 621, and the support top plate 63 has a second detachment hole 631 coaxial with the first detachment hole 621. A limit plate 632 is provided on the bottom surface of the support top plate 63 at a position corresponding to the second detachment hole 631. During operation, the lifting mounting plate 62 is raised with the lateral hydraulic cylinder 610 and cooperates with the limiting plate 632 of the supporting top plate 63 to complete the initial positioning of the motor rotor to be detached; then the detachment top shaft 69 is raised with the piston rod of the central hydraulic cylinder 66 and passes through the first detachment position hole 621, pushing out the positioning mandrel 75 at the center of the motor rotor 8 through the second detachment position hole 631 to complete the detachment operation.
[0020] like Figure 4 As shown, the non-standard clamping fixture 7 includes a support tray 71, a process tray 72, a process pressure plate 73, connecting bolts 74, and a positioning mandrel 75. The process tray 72 is correspondingly set on the support tray 71, the process pressure plate 73 is coaxially set above the process tray 72, and the positioning mandrel 75 is correspondingly set on the axis of the process tray 72. Multiple connecting bolts 74 are arranged on the process tray 72 along the circumference of the positioning mandrel 75. The multiple laminations that make up the motor rotor 8 are sequentially and coaxially fitted on the outside of the positioning mandrel 75 and placed between the process tray 72 and the process pressure plate 73. The connecting bolts 74 connect and tighten the process tray 72, the laminations of the motor rotor 8, and the lower process pressure plate 73. The positioning mandrel 75 and the center hole of the motor rotor 8 are coaxially positioned to ensure that the motor rotor does not deviate or shake during processing. The automatic pressure tightening device can realize the lamination pressure, pressure holding and curing operation of the motor rotor. Then, the non-standard clamping fixture 7 carrying the motor rotor can be transferred to the shaft removal station for shaft removal operation.
[0021] In a preferred embodiment, such as Figure 2As shown, a lifting push plate 67 is also provided between the top of the piston rod of the detachment top shaft 69 and the central hydraulic cylinder 66. Limiting guide rods 611 are symmetrically arranged on the bottom surface of the lifting push plate 67 on both sides of the central hydraulic cylinder 66. A guide sleeve 612 for sliding installation of the limiting guide rods is provided on the support base plate 61. This lifting push plate 67, in conjunction with the guiding mechanism, can improve the operational stability of the detachment top shaft 69. A pressure sensor is also provided on the lifting push plate 67 for real-time detection of the output pressure of the hydraulic structure.
[0022] In a preferred embodiment, such as Figure 2 As shown, the lifting mounting plate 62 is equipped with corresponding through-beam sensors 68 on both sides of the non-standard clamping fixture 7. After the through-beam sensors 68 detect that the non-standard clamping fixture 7 and the motor rotor 8 are in place, they start the central hydraulic cylinder 66 and the side hydraulic cylinder 610 to perform corresponding actions. If they are not in place, the equipment cannot start the hydraulic action, which plays a joint protection function.
[0023] In a preferred embodiment, such as Figure 2 and Figures 5-7 As shown, the detachable top shaft 69 is a segmented and detachable structure, including a top shaft rod 691 and a top pin 695. The top shaft rod 691 has a first mounting end 692 and a second mounting end 693 at its upper and lower ends, respectively. The lower end of the top pin 695 has a third mounting end 694 that is detachable from the second mounting end 693, and the top of the top pin 695 forms an insertion end face 696. The insertion end face 696 matches the shape of the bottom end of the positioning mandrel 75. When the central hydraulic cylinder hydraulically lifts the mandrel, it pushes the positioning mandrel 75 upward, realizing the automatic separation of the motor rotor from the positioning mandrel 75. The three-segment mounting end structure allows for the individual replacement of the top shaft rod 691 or the top pin 695, adapting to motor rotors of different outer diameters and lengths, thus improving production adaptability.
[0024] In a preferred embodiment, the shaft removal device is equipped with an electronic control system. The electronic control system is connected to the hydraulic oil station and all sensors, and integrates sensor signal acquisition, hydraulic action control, and processing data storage modules. The processing data (motor rotor positioning signal, lifting stroke, lateral clamping displacement, etc.) collected by the displacement sensor 613 and the through-beam sensor 68 are uploaded to the workshop MES system through the electronic control system. The shaft removal process parameters of each motor rotor are stored independently, and the quality data can be retrieved and traced at any time.
[0025] In a preferred embodiment, such as Figure 1As shown, the support base 1 is equipped with protective grilles 4 on three sides around the detachment mechanism 2, and electronic grilles 5 are installed on both sides of the working area in front of the detachment mechanism 2. The electronic grilles 5 are safety photoelectric gratings, which are electrically connected to the electrical control system. When the electronic grilles 5 detect foreign objects intruding into the processing area, they control the equipment to stop urgently and cut off the hydraulic power. This device is equipped with a safety interlock between the fully enclosed protective grilles and the electronic grilles, and the detachment area is isolated. Workers are only responsible for loading and unloading materials, freeing them from high-intensity repetitive physical labor and reducing the risk of occupational diseases. The safety protection working logic of this application is as follows: the protective grilles 4 enclose the processing area of the equipment, and the electronic grilles 5 are arranged at the loading and unloading inlets; if a person's hand passes through the electronic grille into the processing area, the system immediately cuts off the hydraulic oil circuit of the detachment mechanism, the equipment stops all operations and sounds and lights an alarm, eliminating the risk; when no non-standard clamping fixtures are placed, the photoelectric sensor 68 has no positioning signal, the detachment action is locked, and the equipment is prevented from running dry and damaging the fixtures.
[0026] Example 2: The present invention also discloses a method for detaching a motor rotor from its shaft, using the aforementioned detachment device 100, comprising the following steps: Step 1: The non-standard clamping fixture 7 carrying the motor rotor 8 is placed onto the shaft removal station of the hydraulic lifting mechanism 6 by a robotic arm. It should be noted that before the motor rotor shaft removal process, there is also an automatic pressurization, pressure holding, and tightening and curing process for the stacked laminations of the motor rotor. Specifically, the operator assembles the various stacked laminations of the motor rotor 8 into the non-standard clamping fixture 7 in sequence, with the positioning mandrel 75 positioned coaxially, and the connecting bolts locking the process pressure plate 73 and the process support plate 72. Then, the stacked structure of the motor rotor is cured by the automatic pressurization and tightening device. After that, the positioning mandrel 75 located at the center of the motor rotor needs to be removed. This device is designed for the shaft removal process of the positioning mandrel. Step 2: When the through-beam sensor 68 detects that the non-standard clamping fixture 7 is in place, the signal is transmitted to the electronic control system, which starts the lateral hydraulic cylinder 610 of the hydraulic lifting mechanism 6 to drive the lifting mounting plate 62 and the non-standard clamping fixture 7 on it to continue to lift until they touch the limiting plate 632 of the supporting top plate 63 and then stop. At this time, the positioning spindle 75 and the second detachment hole 631 are on the same axis; the upward pressure of the lateral hydraulic cylinder 610 is 20KN; during this process, the displacement sensor collects the displacement of the lifting mounting plate 62 in real time to confirm that the positioning of the non-standard clamping fixture 7 is not offset. Step 3: Then, the hydraulic oil station supplies oil to drive the central hydraulic cylinder 66 of the hydraulic lifting mechanism 6 to lift the lifting push plate 67 upward. The lifting push plate 67 then pushes the detachment shaft 69 through the first detachment hole 621 to lift upward and contact the bottom end of the positioning mandrel 75 until the positioning mandrel 75 is disengaged from the second detachment hole 631; the upward lifting pressure of the central hydraulic cylinder 66 is 20KN; Step 4: The positioning mandrel 75 is removed by the robotic arm and withdrawn from the hydraulic lifting mechanism 6, completing the fully automatic mandrel removal; Step 5: After the shaft is removed, the central hydraulic cylinder 66 and the lateral hydraulic cylinder 610 of the hydraulic lifting mechanism 6 are moved down to their original positions, and then the non-standard clamping fixture 7 is transferred by the robot arm to complete the shaft removal process.
[0027] The shaft removal device of this application requires only manual loading and unloading throughout the entire process. The clamping, positioning, and shaft removal of the motor rotor are all automated, and the processing data is automatically uploaded and stored, realizing full-process control.
[0028] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A shaft-detaching device for an electric motor rotor, characterized in that, It includes a support base (1), a shaft detachment mechanism (2), and a hydraulic oil station (3); The shaft removal mechanism (2) includes a hydraulic lifting mechanism (6) and a non-standard clamping fixture (7) correspondingly arranged on the support base (1). The non-standard clamping fixture (7) carries the motor rotor (8) and can be transferred to the shaft removal station of the hydraulic lifting mechanism (6). The hydraulic lifting mechanism (6) includes a support base plate (61), a lifting mounting plate (62), a support top plate (63), a central hydraulic cylinder (66), a detachment jacking shaft (69), and a lateral hydraulic cylinder (610); the support base plate (61) is fixedly mounted on the support base (1), and multiple sets of guide rods (64) are provided between the support base plate (61) and the support top plate (63); the lifting mounting plate (62) is slidably connected to the guide rods (64) through a guide sleeve (65); The central hydraulic cylinder (66) is vertically fixed at the bottom of the support base plate (61), and the detachment top shaft (69) is located at the top of the piston rod of the central hydraulic cylinder (66); the lateral hydraulic cylinder (610) includes two sets arranged on the support base plate (61) and symmetrically arranged on both sides of the central hydraulic cylinder (66), and the output end of the lateral hydraulic cylinder (610) is connected to the lifting mounting plate (62) in a transmission connection; a displacement sensor (613) is provided between the support base plate (61) and the lifting mounting plate (62) on one side of the lateral hydraulic cylinder (610). The lifting mounting plate (62) has a first detachment hole (621), and the supporting top plate (63) has a second detachment hole (631) coaxial with the first detachment hole (621). The detachment top shaft (69) is lifted by the piston rod of the central hydraulic cylinder (66) and passes through the first detachment hole (621), pushing out the positioning mandrel (75) at the center of the motor rotor (8) through the second detachment hole (631) to complete the detachment operation.
2. The shaft-detaching device for a motor rotor according to claim 1, characterized in that, The non-standard clamping fixture (7) includes a support tray (71), a process tray (72), a process pressure plate (73), connecting bolts (74), and a positioning mandrel (75). The process tray (72) is correspondingly arranged on the support tray (71), the process pressure plate (73) is coaxially arranged above the process tray (72), and the positioning mandrel (75) is correspondingly arranged on the axis of the process tray (72). The process tray (72) has multiple connecting bolts (74) arranged along the circumference of the positioning mandrel (75). The multiple laminations that make up the motor rotor (8) are sequentially coaxially fitted on the outside of the positioning mandrel (75) and placed between the process tray (72) and the process pressure plate (73). The connecting bolts (74) connect the process tray (72), the laminations of the motor rotor (8), and the lower process pressure plate (73) and fasten them.
3. The shaft-detaching device for a motor rotor according to claim 2, characterized in that, The support base (1) is a box-type structure; the central hydraulic cylinder (66) and the lateral hydraulic cylinder (610) are housed in the box-type structure; the lifting mounting plate (62) is raised with the lateral hydraulic cylinder (610) and cooperates with the support top plate (63) to complete the initial positioning of the motor rotor to be detached; then the detachment top shaft (69) is lifted with the central hydraulic cylinder (66) to detach the positioning mandrel (75) of the motor rotor.
4. The shaft-detaching device for a motor rotor according to claim 1, characterized in that, A lifting push plate (67) is also provided between the top of the detachment top shaft (69) and the piston rod top of the central hydraulic cylinder (66). The bottom surface of the lifting push plate (67) is symmetrically provided with limit guide rods (611) on both sides of the central hydraulic cylinder (66). A guide sleeve (612) for sliding installation of the limit guide rod is provided on the support base plate (61).
5. The shaft-detaching device for a motor rotor according to claim 1, characterized in that, The lifting mounting plate (62) is equipped with corresponding through-beam sensors (68) on both sides of the non-standard clamping fixture (7). After the through-beam sensors (68) detect that the non-standard clamping fixture (7) and the motor rotor (8) are in place, they start the central hydraulic cylinder (66) and the side hydraulic cylinder (610) to perform corresponding actions.
6. The shaft-detaching device for a motor rotor according to claim 1, characterized in that, The detachable top shaft (69) is a segmented and detachable structure, including a top shaft rod (691) and a top pin (695). The top shaft rod (691) is provided with a first mounting end (692) and a second mounting end (693) at its upper and lower ends, respectively. The lower end of the ejector pin (695) is provided with a third mounting end (694) that is detachable from the second mounting end (693), and the top end of the ejector pin (695) forms an insertion end face (696), which matches the shape of the bottom end of the positioning mandrel (75).
7. The shaft-detaching device for a motor rotor according to claim 1, characterized in that, The detachment mechanism (2) is equipped with a hydraulic oil station (3), which is connected to the central hydraulic cylinder (66) and the side hydraulic cylinder (610) through high-pressure oil pipes.
8. The shaft-detaching device for an electric motor rotor according to any one of claims 1-7, characterized in that, The shaft removal device is equipped with an electrical control system, which integrates sensor signal acquisition, hydraulic action control, and processing data storage modules. The processing data collected by the displacement sensor (613) and the through-beam sensor (68) is uploaded to the workshop MES system through the electrical control system to store the shaft removal process parameters and trace the entire product process.
9. The shaft-detaching device for a motor rotor according to claim 8, characterized in that, The support base (1) is provided with protective plates (4) on three sides around the shaft removal mechanism (2), and electronic grids (5) are provided on both sides of the front working area of the shaft removal mechanism (2); the electronic grid (5) is a safety photoelectric grating, which is electrically connected to the electrical control system. When the electronic grid (5) detects foreign objects intruding into the processing area, it controls the equipment to stop urgently and cuts off the hydraulic power.
10. A method for detaching a motor rotor from its shaft, characterized in that, The method of using the shaft-detaching device (100) as described in claim 9 includes the following steps: Step 1: Using a robotic arm, place the non-standard clamping fixture (7) carrying the motor rotor (8) onto the detachment station of the hydraulic lifting mechanism (6); Step 2: Start the lateral hydraulic cylinder (610) of the hydraulic lifting mechanism (6) to drive the lifting mounting plate (62) and its non-standard clamping fixture (7) to continue lifting until it stops after hitting the limit stop of the supporting top plate (63). At this time, the top of the positioning mandrel (75) is aligned with the second detachment hole (631); the upward pressure of the lateral hydraulic cylinder (610) is 20KN. Step 3: Then, the central hydraulic cylinder (66) of the hydraulic lifting mechanism (6) is activated to lift the detachment jack (69) through the first detachment hole (621) and push it upward to contact the bottom end of the positioning mandrel (75) until the positioning mandrel (75) is dislodged from the second detachment hole (631); the upward pressure of the central hydraulic cylinder (66) is 20KN; Step 4: Use a robotic arm to grip the positioning mandrel (75) and remove the hydraulic lifting mechanism (6); Step 5: Control the central hydraulic cylinder (66) and the lateral hydraulic cylinder (610) of the hydraulic lifting mechanism (6) to move down to their original positions, and then transfer them by using a robotic arm to pick up the non-standard clamping fixture (7).