A cooling positioning tool for an electric machine rotor

Abstract

The application discloses a cooling positioning tool for a motor rotor and relates to the technical field of motor rotor cooling positioning, which comprises a positioning bottom plate for welding processing, the top surface of the positioning bottom plate is provided with a positioning top plate, the top surface of the positioning bottom plate is provided with a positioning assembly, the positioning assembly comprises a positioning supporting plate, the top of the positioning supporting plate is provided with a positioning pressing plate, the top surface of the positioning supporting plate is provided with a transmission turntable which is rotatably installed at the central position through a bearing, the rear of the positioning bottom plate is provided with a cooling assembly, and the cooling assembly comprises a cooling arc support. The cooling positioning tool for the motor rotor is used for adaptively clamping different specifications of rotor bodies through the positioning supporting plate and the positioning pressing plate, the supporting side plate is moved after the adaptive pressing plate is in contact with the rotor body, the angle of the rotor body is adjusted under the rotatable condition, the cooling arc supports and the extension arc support are symmetrically distributed and are attached to the rotor body, and thus the cooling operation is realized.

Description

Technical Field

[0001] This invention relates to the field of motor rotor cooling and positioning technology, specifically to a cooling and positioning fixture for motor rotors. Background Technology

[0002] The motor rotor cooling and positioning fixture is a specialized tooling equipment designed specifically for the processing, transfer, or heat treatment of motor rotors. It uses a base plate as its support foundation and features sliding clamping fixtures on both sides of the product positioning fixture, which can slide along guide rails. The clamping fixtures consist of a sliding platform, a drive mechanism, and a contour-following floating mechanism. The contour-following floating mechanism includes a support frame, elastic components, and cooling units arranged at intervals along the support frame, which are interconnected by pipes. The coolant circulating inside the cooling units surrounding the rotor achieves efficient heat exchange with the rotor surface, quickly removing the heat generated during rotor processing or heat treatment, thus simultaneously achieving reliable rotor positioning and uniform heat dissipation.

[0003] Application CN112719759A discloses an omnidirectional cooling and positioning fixture for pipe bending welding. The cooling support structure supports the bottom end of the pipe to be welded vertically upwards, and two cooling support structures fix the two ends of the pipe to be welded in opposite directions horizontally. The cooling support structure includes a first positioning block, which is fixedly connected to the side wall of the fixture base and abuts against the bottom end face of the pipe to be welded. The two first positioning blocks are symmetrically arranged on the working base and fixedly connected to each other. The fixture cools the product to be welded during welding, ensuring that the welding point remains at room temperature during welding, thereby avoiding problems such as deterioration or deformation of the product due to heating.

[0004] Application CN219005046U discloses a cooling and positioning fixture for welding bent pipes. The fixture includes a second column below the base, on which a straight pipe is fitted. A compressor is housed within the base, and its output end communicates with a longitudinally formed groove within the second column. An exhaust groove is transversely formed within the first column, and an exhaust port communicating with a sliding groove is located on the back of the base. By fitting the bent pipe and straight pipe onto the first and second columns respectively, the compressor within the base compresses air and discharges it through the groove in the second column into the straight and bent pipes, cooling them. Simultaneously, a fan within the exhaust port on the base provides targeted cooling and temperature control at the welding points of the bent and straight pipes. This dual cooling effect ensures stable welding temperatures.

[0005] However, the above-disclosed cooling and positioning fixtures for workpieces still have the following problems in actual use: the workpiece is positioned and cooled by multiple support components, but such support components are relatively simple. It is difficult to position and clamp workpieces of different specifications and sizes using such support components. Furthermore, if the positioning components are not compatible, it is difficult to perform subsequent adaptive cooling, which will affect subsequent processing operations.

[0006] Therefore, we propose a cooling and positioning fixture for motor rotors to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a cooling and positioning fixture for motor rotors. This invention addresses the problem that existing methods use multiple support components to achieve positioning and cooling of workpieces. However, these support components are often too uniform, making it difficult to position and clamp workpieces of different specifications and sizes. Furthermore, if the positioning components are not compatible, subsequent cooling is also difficult, which in turn affects subsequent processing operations.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a cooling and positioning fixture for a motor rotor, comprising a positioning base plate for welding processing, wherein a positioning top plate is provided on the top surface of the positioning base plate, and a rotor body is provided between the positioning base plate and the positioning top plate, for cooling and positioning the rotor body during welding processing. The top surface of the positioning base plate is provided with a positioning component, and the positioning component includes a positioning support plate, and a positioning pressure plate is provided above the positioning support plate. The top surface of the positioning plate is equipped with a transmission turntable that is rotatably mounted on the center position via a bearing, and the transmission turntable is attached to the lower end of the rotor body to achieve rotation. A cooling assembly is provided behind the positioning base plate, and the cooling assembly includes a cooling arc frame, and an extension groove is provided inside the cooling arc frame.

[0009] Preferably, the positioning component includes a support column, and the outer ends of the support column are fixedly installed at the middle of the rear end of the positioning base plate and the middle of the rear end of the positioning top plate, respectively. The support column, the positioning base plate and the positioning top plate are combined to form a front-opening "C"-shaped structure. Guide slide rods are fixedly installed on the left and right sides of the front end of the positioning base plate and the positioning top plate.

[0010] Preferably, the positioning component includes a bidirectional lead screw, which is rotatably mounted at the internal center of the supporting column via a bearing. The upper and lower ends of the bidirectional lead screw are threadedly connected to the rear middle of the positioning support plate and the positioning pressure plate. The front end of the positioning support plate and the front end of the positioning pressure plate are slidably sleeved on the outer wall of the guide slide rod.

[0011] Preferably, the positioning component includes a positioning tray that is attached to the lower outer wall of the rotor body, and the lower shaft of the rotor body is disposed through the center of the positioning tray, and the upper shaft of the rotor body is disposed through the center of the positioning plate. Moreover, the positioning plate and the positioning tray slide synchronously in opposite directions to adapt to the positioning of rotor bodies of different specifications.

[0012] Preferably, the positioning component includes an adapter plate, and the center of the bottom surface of the adapter plate is rotatably connected to the lower end of the follower turntable via a bearing. Guide rails are slidably connected through the four corners inside the adapter plate, and the lower end of the guide rails is fixedly installed on the top surface of the positioning plate. The guide rails and the adapter plate are connected to each other via a return spring.

[0013] Preferably, the positioning component includes a support side plate, the outer end of which is fixedly connected to the inner end of the inclined support slide bar, and the support side plate is arranged in an arc-shaped structure. Supporting balls are rotatably installed on the inner wall of the support side plate at equal angles, and the support side plate is attached to the upper shaft of the rotor body through the support balls on the inner wall.

[0014] Preferably, the positioning component includes a guide groove, which is opened at an equal angle inside the positioning pressure plate. The guide groove is slidably connected to the lower end of the inclined support rod, and the inclined support rod and the guide groove are connected to each other by a contact spring. In the initial state, the inclined support rod and the support side plate are in the outer position.

[0015] Preferably, the positioning component includes a traction cable, the upper end of which is fixedly connected to the bottom surface of the adapter pressure plate at an equal angle, and the lower end of which is fixedly connected to the inner end of the inclined support slide bar. The adapter pressure plate slides upward, and the traction cable drives the inclined support slide bar and the support side plate to slide inward synchronously.

[0016] Preferably, the cooling assembly includes a positioning shaft, which is rotatably mounted on the left and right rear ends of the positioning base plate and the positioning top plate via bearings. The outer wall of the positioning shaft is fixedly connected to the rear end of the flipping bracket, and the front end of the flipping bracket is rotatably connected to the rear end of the adapter bracket via a torsion spring. At the same time, the front end of the adapter bracket is fixedly connected to the outer wall of the cooling arc frame.

[0017] Preferably, the cooling assembly includes an extended arc frame, which is slidably connected to the upper and lower sides of the extended groove inside the cooling arc frame in a symmetrical manner. The inner ends of the symmetrically distributed extended arc frames are connected to each other by elastic sliding rods. Furthermore, a cooling circulation pipe is installed through the inner wall of the extended arc frame and the inner wall of the cooling arc frame at the same angle, for cooling operation after positioning close to the rotor body.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: This cooling positioning fixture for motor rotors uses a positioning support plate and a positioning pressure plate to adapt and clamp rotor bodies of different specifications. After the adaptation pressure plate contacts the rotor body, it drives the support side plate to move, thereby ensuring the adjustment angle of the rotor body while allowing rotation. At the same time, the symmetrically distributed cooling arc frame and the extended arc frame fit against the rotor body, thereby realizing the cooling operation. The specific details are as follows: 1. When the servo motor drives the bidirectional lead screw to rotate, the positioning plate and the positioning pressure plate move synchronously in opposite directions along the guide slide. The positioning plate moves upward to support the lower end shaft of the rotor body, and the positioning pressure plate moves downward to press the upper end shaft of the rotor. The rigid transmission of the bidirectional lead screw ensures that the upper and lower clamping surfaces are always coaxially aligned, completely eliminating the radial offset of the rotor body during welding.

[0019] 2. The guide slide rods are fixed in pairs to the front end of the positioning base plate and the positioning top plate, and pass through the four corners of the positioning support plate and the positioning pressure plate. When the bidirectional screw rotates, it generates a precise axial driving force, which drives the positioning support plate and the positioning pressure plate to rise and fall vertically along the guide slide rod. The self-locking characteristic of the bidirectional screw thread prevents loosening after clamping. The guide slide rod eliminates the horizontal degree of freedom and forms a rigid constraint.

[0020] 3. When the positioning plate presses down to contact the rotor shaft end, the rotor thrust forces the adapter plate to move upward and compress the return spring. At the same time, the bottom surface of the adapter plate pulls the traction cable upward, and the lower end of the traction cable pulls the inner end of the diagonal brace slide rod, forcing the diagonal brace slide rod to slide towards the center along the guide groove. This simultaneously drives the arc-shaped support side plate to retract inward, and the support ball on the inner wall of the support side plate tightly fits the rotor journal, forming a full-circumferential floating support, which eliminates radial movement when the rotor rotates and adjusts its angle.

[0021] Furthermore, the lower end of the diagonal brace slides inward and is slidably connected to the guide groove of the positioning pressure plate. It is pre-tightened by the contact spring. When the traction cable pulls the diagonal brace slide inward, the support ball on the inner wall of the support side plate closely contacts the rotor journal surface. The rolling characteristics of the ball allow the rotor to finely adjust the angle during welding. At the same time, the spring preload of the diagonal brace slide continuously provides radial constraint force.

[0022] 4. The inner ends of the extended arc frame are connected to each other by elastic slide rods. The outer wall and the inner wall of the cooling arc frame are fitted with cooling circulation pipes. When the flipping bracket drives the cooling arc frame to cover the outer circle of the rotor, the extended arc frame is squeezed by the rotor diameter and expands outward along the extended slide groove. The elastic slide rods adaptively adjust the arc frame spacing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the rotor body installation structure of the present invention; Figure 3This is a schematic diagram of the structure of the pressure plate adapted to the initial state of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the structure of the present invention after the pressure plate is slidable; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the three-dimensional structure of the transmission turntable of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the cooling arc frame of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the cooling arc frame of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C.

[0024] In the diagram: 1. Positioning base plate; 2. Positioning top plate; 3. Rotor body; 4. Positioning support plate; 5. Positioning pressure plate; 6. Transmission turntable; 7. Cooling arc frame; 8. Extension slide groove; 9. Bearing column; 10. Guide slide rod; 11. Two-way lead screw; 12. Adaptive pressure plate; 13. Follow-up turntable; 14. Guide slide rail; 15. Return spring; 16. Support side plate; 17. Diagonal brace slide rod; 18. Support ball; 19. Guide slide groove; 20. Contact spring; 21. Traction cable; 22. Positioning shaft; 23. Tilting bracket; 24. Adaptive bracket; 25. Extension arc frame; 26. Elastic slide rod; 27. Cooling circulation pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-10 The present invention provides the following technical solution: Example 1: To solve the problems existing in the cooling and positioning process of motor rotors, this example discloses the following technical solution: a cooling and positioning fixture for motor rotors, including a positioning base plate 1 for welding processing, a positioning top plate 2 on the top surface of the positioning base plate 1, and a rotor body 3 between the positioning base plate 1 and the positioning top plate 2 for cooling and positioning the rotor body 3 during welding operations; a positioning component is provided on the top surface of the positioning base plate 1, and the positioning component includes a positioning support plate 4, and a positioning pressure plate 5 is provided above the positioning support plate 4; wherein, a transmission turntable 6 is rotatably mounted at the center position of the top surface of the positioning support plate 4 via a bearing, and the transmission turntable 6 is attached to the lower end of the rotor body 3 to achieve rotation.

[0027] like Figure 7 As shown, when the rotor body 3 needs to be cooled and positioned, the rotor body 3 is first placed between the positioning base plate 1 and the positioning top plate 2. The output shaft at the lower end of the rotor body 3 is inserted through and connected to the center of the positioning support plate 4. The transmission turntable 6 at the center of the top of the positioning support plate 4 is attached to the lower end of the rotor body 3, so that the positioning support plate 4 can lift the rotor body 3 to position it for rotor bodies 3 of different specifications and diameters.

[0028] The positioning assembly includes a support column 9, the outer ends of which are fixedly installed at the rear center of the positioning base plate 1 and the rear center of the positioning top plate 2, respectively. The support column 9, the positioning base plate 1, and the positioning top plate 2 are combined to form a front-opening "C"-shaped structure. Guide slide rods 10 are fixedly installed on the left and right sides of the front end of the positioning base plate 1 and the positioning top plate 2. The positioning assembly includes a bidirectional lead screw 11, which is rotatably installed at the internal center position of the support column 9 via bearings. The upper and lower ends of the bidirectional lead screw 11 are screwed... The positioning plate 4 and the positioning pressure plate 5 are connected through the middle of their rear ends. The front end of the positioning plate 4 and the front end of the positioning pressure plate 5 are slidably sleeved on the outer wall of the guide slide rod 10. The positioning component includes a positioning plate 4 that is attached to the lower outer wall of the rotor body 3. The lower shaft of the rotor body 3 is disposed through the center of the positioning plate 4. The upper shaft of the rotor body 3 is disposed through the center of the positioning pressure plate 5. The positioning pressure plate 5 and the positioning plate 4 slide synchronously in opposite directions to adapt to the positioning of rotor bodies 3 of different specifications.

[0029] like Figure 2As shown, the servo motor installed at the top of the positioning plate 2 operates, driving the bidirectional lead screw 11 inside the support column 9 to rotate. The positioning support plate 4 and the positioning pressure plate 5, which are threadedly connected to the bidirectional lead screw 11, are limited by the support column 9 so that the rotating bidirectional lead screw 11 drives the positioning support plate 4 and the positioning pressure plate 5 to slide inward synchronously, thereby clamping and positioning the rotor body 3 on the top surface of the positioning support plate 4. After the positioning pressure plate 5 slides downward, the rotating shaft at the upper end of the rotor body 3 is inserted and set at the internal center position of the positioning pressure plate 5. The positioning pressure plate 5 and the positioning support plate 4, which are distributed vertically, position the rotor body 3, thereby realizing the positioning processing.

[0030] Example 2: To solve the problems existing in the cooling and positioning process of the motor rotor, this example discloses the following technical solution: The positioning component includes an adapter pressure plate 12, and the center of the bottom surface of the adapter pressure plate 12 is rotatably connected to the lower end of the follower turntable 13 via a bearing. The four corners inside the adapter pressure plate 12 are slidably connected to guide rails 14, and the lower end of the guide rails 14 is fixedly installed on the top surface of the positioning pressure plate 5. The guide rails 14 and the adapter pressure plate 12 are connected to each other via a return spring 15. The positioning component includes a support side plate 16, and the outer end of the support side plate 16 is fixedly connected to the inner end of the inclined support slide rod 17. The support side plate 16 is arranged in an arc shape, and support balls 18 are rotatably installed on the inner wall of the support side plate 16 at equal angles. The support side plate 16 is attached to the upper shaft of the rotor body 3 through the support balls 18 on the inner wall.

[0031] The positioning component includes a guide groove 19, which is opened at equal angles inside the positioning pressure plate 5. The guide groove 19 is slidably connected to the lower end of the inclined support slide rod 17. The inclined support slide rod 17 and the guide groove 19 are connected to each other by a contact spring 20. In the initial state, the inclined support slide rod 17 and the support side plate 16 are in the outer position. The positioning component includes a traction cable 21, the upper end of which is fixedly connected at equal angles to the bottom surface of the adapter pressure plate 12. The lower end of the traction cable 21 is fixedly connected to the inner end of the inclined support slide rod 17. The adapter pressure plate 12 slides upward, and the traction cable 21 drives the inclined support slide rod 17 and the support side plate 16 to slide inward synchronously.

[0032] like Figures 3-6 As shown, during the downward sliding process, the positioning pressure plate 5 drives the adapter pressure plate 12 in the middle of the top surface to contact the upper output shaft of the rotor body 3. The upper output shaft of the rotor body 3 slides upward against the adapter pressure plate 12. The adapter pressure plate 12 moves along the guide rails 14 at the four corners and stretches the return spring 15. It is then attached to the upper output shaft of the rotor body 3 by the follower turntable 13 in the middle of the bottom surface of the adapter pressure plate 12, thereby positioning the rotor body 3.

[0033] Furthermore, as the adapter pressure plate 12 slides upward, it causes the traction steel cable 21 on the outer bottom surface to be stretched. The traction steel cable 21 is pulled by the adapter pressure plate 12, which causes the inclined support slide rod 17 and the support side plate 16 fixedly connected at the lower end to slide inward. The lower end of the inclined support slide rod 17 slides inside the guide slide groove 19 and stretches the abutment spring 20 to move, so that the support ball 18 on the inner wall of the support side plate 16 can be attached to the outer wall of the output shaft of the rotor body 3. This allows the rotor body 3 to rotate when the angle needs to be adjusted, and avoids misalignment that may affect subsequent cooling and positioning.

[0034] Example 3: To solve the problems existing in the cooling and positioning process of the motor rotor, this example discloses the following technical solution: A cooling assembly is provided behind the positioning base plate 1, and the cooling assembly includes a cooling arc frame 7, and an extension groove 8 is provided inside the cooling arc frame 7; the cooling assembly includes a positioning rotating shaft 22, and the positioning rotating shaft 22 is rotatably mounted on the left and right rear ends of the positioning base plate 1 and the positioning top plate 2 via bearings, and the outer wall of the positioning rotating shaft 22 is fixedly connected to the rear end of the flipping bracket 23, and the front end of the flipping bracket 23 is rotatably connected to the rear end of the adapter bracket 24 via a torsion spring, while the front end of the adapter bracket 24 is fixedly connected to the outer wall of the cooling arc frame 7.

[0035] The cooling assembly includes an extension arc frame 25, which is slidably connected to the upper and lower sides of the extension groove 8 inside the cooling arc frame 7 in a vertically symmetrical manner. The inner ends of the symmetrically distributed extension arc frames 25 are connected to each other by elastic slide rods 26. The inner wall of the extension arc frame 25 and the inner wall of the cooling arc frame 7 are connected at equal angles to the cooling circulation pipe 27, which is close to the rotor body 3 to achieve the cooling operation after positioning.

[0036] like Figures 8-10 As shown, when cooling is required for the rotor body 3, the positioning shafts 22 on the left and right sides behind the top surface of the positioning base plate 1 are positioned for the flipping bracket 23. The positioning shafts 22 are rotated synchronously, which drives the fixedly connected flipping bracket 23 and the adapter bracket 24 connected by the torsion spring to rotate synchronously to the left and right sides close to the rotor body 3. The positioning support plate 4 and positioning pressure plate 5 of different specifications of rotor body 3 are at different heights during the positioning process. The cooling arc frame 7 at the front end of the adapter bracket 24 is installed for the extension arc frame 25 through the extension groove 8 opened inside. The symmetrically distributed extension arc frames 25 are extended and supported by the elastic slide rod 26 at the inner end. After the cooling arc frame 7 enters the interior of the positioning support plate 4 and positioning pressure plate 5, it slides synchronously outward through the extension arc frame 25 inside the cooling arc frame 7 so that the extension arc frame 25 fits and connects to the inner wall of the positioning support plate 4 and positioning pressure plate 5, thereby adapting to the outer wall of the rotor body 3 of different specifications, and cooling the rotor body 3 through the cooling circulation pipes 27 distributed at equal angles on the inner side.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cooling and positioning fixture for an electric motor rotor, comprising a positioning base plate (1) for welding processing, wherein a positioning top plate (2) is provided on the top surface of the positioning base plate (1), and a rotor body (3) is provided between the positioning base plate (1) and the positioning top plate (2), for cooling and positioning the rotor body (3) during welding processing; Its features are, Also includes: The top surface of the positioning base plate (1) is provided with a positioning component, and the positioning component includes a positioning tray (4), and a positioning pressure plate (5) is provided above the positioning tray (4). Among them, the top surface of the positioning plate (4) is provided with a transmission turntable (6) which is rotatably mounted on the center position via a bearing, and the transmission turntable (6) is attached to the lower end of the rotor body (3) to achieve rotation; A cooling assembly is provided behind the positioning base plate (1), and the cooling assembly includes a cooling arc frame (7), and an extension groove (8) is provided inside the cooling arc frame (7).

2. The cooling and positioning fixture for a motor rotor according to claim 1, characterized in that: The positioning component includes a support column (9), and the outer ends of the support column (9) are fixedly installed at the middle of the rear end of the positioning base plate (1) and the middle of the rear end of the positioning top plate (2). The support column (9), the positioning base plate (1) and the positioning top plate (2) are combined to form a front-open "C" shaped structure. Guide slide rods (10) are fixedly installed on the left and right sides of the front end of the positioning base plate (1) and the positioning top plate (2).

3. A cooling and positioning fixture for a motor rotor according to claim 2, characterized in that: The positioning assembly includes a bidirectional lead screw (11), which is rotatably mounted on the inner center of the supporting column (9) via a bearing. The upper and lower ends of the bidirectional lead screw (11) are threaded through and connected to the middle of the rear end of the positioning support plate (4) and the positioning pressure plate (5). The front end of the positioning support plate (4) and the front end of the positioning pressure plate (5) are slidably sleeved on the outer wall of the guide slide rod (10).

4. A cooling and positioning fixture for a motor rotor according to claim 3, characterized in that: The positioning component includes a positioning tray (4) which is attached to the lower outer wall of the rotor body (3), and the lower shaft of the rotor body (3) is disposed through the center of the positioning tray (4), and the upper shaft of the rotor body (3) is disposed through the center of the positioning plate (5). The positioning plate (5) and the positioning tray (4) slide synchronously in opposite directions to adapt to the positioning of rotor bodies (3) of different specifications.

5. A cooling and positioning fixture for a motor rotor according to claim 1, characterized in that: The positioning component includes an adapter plate (12), and the bottom center of the adapter plate (12) is rotatably connected to the lower end of the follower turntable (13) via a bearing. The four corners inside the adapter plate (12) are slidably connected to guide rails (14), and the lower end of the guide rails (14) is fixedly installed on the top surface of the positioning plate (5). Meanwhile, the guide rails (14) and the adapter plate (12) are connected to each other via a reset spring (15).

6. A cooling and positioning fixture for a motor rotor according to claim 5, characterized in that: The positioning component includes a support side plate (16), and the outer end of the support side plate (16) is fixedly connected to the inner end of the inclined support slide rod (17). The support side plate (16) is arranged in an arc-shaped structure. The inner wall of the support side plate (16) is rotatably mounted with support beads (18) at equal angles. At the same time, the support side plate (16) is attached to the upper shaft of the rotor body (3) through the support beads (18) on the inner wall.

7. A cooling and positioning fixture for a motor rotor according to claim 6, characterized in that: The positioning component includes a guide groove (19), and the guide groove (19) is opened at an equal angle inside the positioning pressure plate (5). The guide groove (19) is slidably connected to the lower end of the inclined support rod (17). The inclined support rod (17) and the guide groove (19) are connected to each other by a contact spring (20). In the initial state, the inclined support rod (17) and the support side plate (16) are in the outer position.

8. A cooling and positioning fixture for a motor rotor according to claim 7, characterized in that: The positioning component includes a traction cable (21), and the upper end of the traction cable (21) is fixedly connected to the bottom surface of the adapter plate (12) at equal angles, and the lower end of the traction cable (21) is fixedly connected to the inner end of the inclined support slide bar (17). The adapter plate (12) slides upward, and the traction cable (21) drives the inclined support slide bar (17) and the support side plate (16) to slide inward synchronously.

9. A cooling and positioning fixture for a motor rotor according to claim 1, characterized in that: The cooling assembly includes a positioning shaft (22), which is rotatably mounted on the left and right rear ends of the positioning base plate (1) and the positioning top plate (2) via bearings. The outer wall of the positioning shaft (22) is fixedly connected to the rear end of the flipping bracket (23), and the front end of the flipping bracket (23) is rotatably connected to the rear end of the adapter bracket (24) via a torsion spring. At the same time, the front end of the adapter bracket (24) is fixedly connected to the outer wall of the cooling arc frame (7).

10. A cooling and positioning fixture for a motor rotor according to claim 9, characterized in that: The cooling assembly includes an extension arc frame (25), which is slidably connected to the upper and lower sides of the extension groove (8) inside the cooling arc frame (7) in a symmetrical manner. The inner ends of the symmetrically distributed extension arc frames (25) are connected to each other by elastic slide rods (26). The inner wall of the extension arc frame (25) and the inner wall of the cooling arc frame (7) are connected at equal angles to the inner wall of the cooling arc frame (7) and are equipped with cooling circulation pipes (27) for cooling operations after positioning close to the rotor body (3).

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