Pressing tool for magnetic suspension motor

Abstract

The utility model relates to the technical field of magnetic suspension motor assembling and processing, and discloses a pressing tool for a magnetic suspension motor, the pressing tool comprises a pressing lower ring and a pressing upper ring, the pressing lower ring is suitable for fixing one axial end of a rotating shaft of the magnetic suspension motor, the pressing upper ring is arranged on the upper side of the pressing lower ring, and the pressing upper ring and the pressing lower ring are spaced in the vertical direction; wherein in the vertical direction, the pressing upper ring can move relative to the pressing lower ring so as to press the adjacent detection ring, the first rotor lamination layer and the first spacer ring on the rotating shaft in the axial direction of the rotating shaft. The beneficial effect is that the assembling quality of the rotating shaft is improved.

Description

Technical Field

[0001] This application relates to the technical field of magnetic levitation motor assembly and processing, and particularly relates to a pressing tool for a magnetic levitation motor. Background Art

[0002] With the increasing maturity of the technology of magnetic levitation motors, the application of magnetic levitation motors is becoming more and more extensive. The running stability of a magnetic levitation motor is closely related to the assembly quality of the rotating shaft. In the related art, during the assembly process of the rotating shaft of a magnetic levitation motor, it is impossible to axially press the detection ring, the first rotor laminate, and the first spacer ring provided on the rotating shaft body, and it is impossible to adjust the flatness of the first rotor laminate. Therefore, the assembly quality of the rotating shaft is reduced, resulting in a decrease in the running stability of the magnetic levitation motor. Utility Model Content

[0003] This application provides a pressing tool, which solves the technical problems that the detection ring, the first rotor laminate, and the first spacer ring cannot be pressed and the flatness of the first rotor laminate cannot be adjusted during the assembly of the rotating shaft, and achieves the technical effect of improving the assembly quality of the rotating shaft.

[0004] To achieve the above object, the main technical solutions adopted in this application include:

[0005] An embodiment of this application provides a pressing tool for a magnetic levitation motor, including a lower pressing ring and an upper pressing ring. The lower pressing ring is adapted to fix an axial end of the rotating shaft of the magnetic levitation motor. The upper pressing ring is disposed above the lower pressing ring. Along the vertical direction, the upper pressing ring is spaced apart from the lower pressing ring. Among them, along the vertical direction, the upper pressing ring is movable relative to the lower pressing ring to axially press the adjacent detection ring, the first rotor laminate, and the first spacer ring on the rotating shaft.

[0006] For the pressing tool for a magnetic levitation motor proposed in an embodiment of this application, by moving the upper pressing ring relative to the lower pressing ring, the adjacent detection ring, the first rotor laminate, and the first spacer ring provided on the rotating shaft can be axially pressed under the extrusion of the upper pressing ring, reducing the gap between the detection ring, the rotor laminate, and the spacer ring. In addition, the upper pressing ring can also press the end face of the first rotor laminate in the axial direction of the rotating shaft and adjust the flatness of the end face of the first rotor laminate in the axial direction of the rotating shaft, thereby improving the assembly quality and the running stability of the magnetic levitation motor.

[0007] Preferably, the pressing tool further includes a driving member, and the driving member is connected to the upper pressing ring to drive the upper pressing ring to move in the vertical direction.

[0008] By connecting the driving member to the upper pressing ring, the upper pressing ring can move in the vertical direction, and can apply pressure to the adjacent detection ring, the first rotor stack, and the first spacer ring, so that the detection ring, the first rotor stack, and the first spacer ring are axially pressed along the rotating shaft, reducing the gaps between the detection ring, the first rotor stack, and the first spacer ring, adjusting the flatness of the end face of the first rotor stack in the axial direction of the rotating shaft, and improving the assembly quality of the rotating shaft.

[0009] Preferably, the driving member is configured as a bolt, the bolt includes a bolt head and a screw rod connected to the bolt head, the bolt head is located on the upper side of the upper pressing ring, and the screw rod passes through the upper pressing ring and is in threaded cooperation with the lower pressing ring.

[0010] The driving member is set as a bolt, and the position distance between the upper pressing ring and the lower pressing ring is adjusted by adjusting the bolt, so that the upper pressing ring can move more stably in the vertical direction relative to the lower pressing ring. At the same time, using the bolt as the driving member can also make the upper pressing ring stop at the required position at any time, so as to stably and accurately adjust the distance between the upper pressing ring and the lower pressing ring, and improve the assembly quality of the rotating shaft.

[0011] Moreover, using the bolt to adjust the distance between the upper pressing ring and the lower pressing ring can also simplify the internal structure of the pressing tooling and reduce the manufacturing cost of the pressing tooling.

[0012] Preferably, there are a plurality of the bolts, and the plurality of bolts are evenly and spaced along the circumferential direction of the upper pressing ring.

[0013] By arranging a plurality of bolts evenly spaced along the circumferential direction of the upper pressing ring, the flatness of the end face of the first rotor stack in the axial direction of the rotating shaft can be adjusted more precisely, thereby improving the assembly quality of the rotating shaft and the operation stability of the magnetic levitation motor.

[0014] Preferably, the pressing tooling further includes a first detection device, and the first detection device is adapted to detect the flatness of the upper surface of the upper pressing ring.

[0015] By detecting the flatness of the upper surface of the upper pressing ring with the first detection device, the upper pressing ring can be adjusted targeted according to the data detected by the first detection device, and then the flatness of the end face of the first rotor stack in the axial direction of the rotating shaft can be adjusted more precisely, improving the assembly quality of the rotating shaft.

[0016] Preferably, the first detection device is movable along the vertical direction.

[0017] In this way, the first detection device can move along with the movement of the upper pressing ring, expanding the applicable range of the first detection device.

[0018] Preferably, the first detection device includes a detection body and a meter head. The detection body is adapted to detect the flatness of the upper surface of the upper pressing ring, and the meter head is connected to the detection body to display the flatness detected by the detection body.

[0019] By setting a meter head on the first detection device to display the flatness detected by the detection body, it enables the staff to more conveniently observe the flatness of the upper surface of the upper pressing ring, and then adjust the position of the upper pressing ring, improving the assembly efficiency of the staff.

[0020] Preferably, the pressing tooling includes an adjusting rod and a connecting rod. The adjusting rod extends in the vertical direction. One end of the connecting rod is fixedly connected to the first detection device, and the other end of the connecting rod is slidably disposed on the adjusting rod.

[0021] By slidably disposing the connecting rod on the adjusting rod, the position of the connecting rod relative to the adjusting rod can be adjusted, and then the position of the first detection device can be adjusted, improving the applicable range of the first detection device.

[0022] Preferably, the other end of the connecting rod includes a first claw and a second claw. The first claw and the second claw are clamped on the outer peripheral surface of the adjusting rod. The pressing tooling further includes a locking member for clamping or loosening the first claw and the second claw to hold the connecting rod.

[0023] On the one hand, since the first claw and the second claw have a simple structure and low manufacturing cost, the manufacturing cost of the pressing tooling is reduced. On the other hand, through the first claw and the second claw, the connecting rod can be stably fixed on the adjusting rod, improving the use reliability of the pressing tooling. Moreover, since the first claw and the second claw are easy to use and convenient for the staff to operate, the work efficiency of the staff is improved.

[0024] Preferably, the pressing tooling further includes a base. The base is disposed below the adjusting rod and the lower pressing ring. The adjusting rod and the lower pressing ring are both fixedly connected to the base.

[0025] By setting a base on the pressing tooling, the center of gravity of the pressing tooling can be reduced, improving the use stability of the pressing tooling. In addition, the position of the base can be adjusted at any time, and then the positions of the first detection device, the upper pressing ring and the lower pressing ring can be adjusted, improving the use range of the pressing tooling. Description of the Drawings

[0026] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Structural schematic diagram of the pressing tooling and the rotating shaft provided by the embodiment of the present application;

[0028] Figure 2 For Figure 1 Top view of

[0029] Figure 3 For Figure 2 Cross-sectional view in the A-A direction;

[0030] Figure 4 For Figure 3 Structural schematic diagram of the rotating shaft in

[0031] Figure 5 Structural schematic diagram of another assembled state of the pressing tooling and the rotating shaft provided by the embodiment of the present application;

[0032] Figure 6 For Figure 5 Top view of

[0033] Figure 7 For Figure 6 Structural schematic diagram in the B-B direction.

[0034]

Explanation of the reference numerals

[0035] Pressing tooling 100;

[0036] Lower pressing ring 110;

[0037] Upper pressing ring 120; upper surface 1200;

[0038] Rotating shaft 130;

[0039] Rotating shaft body 131;

[0040] Detection ring 132;

[0041] First rotor laminate 133;

[0042] First spacer ring 134; first stepped surface 1340; first circumferential surface 1341; second circumferential surface 1342; second rotor laminate 135; second spacer ring 136; threaded ring 137; permanent magnet 138; sheath 139;

[0043] Driver 140;

[0044] Bolt 141; bolt head 141a; screw rod 141b;

[0045] First detection device 150;

[0046] Detection body 151;

[0047] Gauge head 152;

[0048] Adjusting rod 160;

[0049] Connecting rod 170;

[0050] First claw 171;

[0051] Second claw 172;

[0052] Locking member 173;

[0053] Base 180. Detailed implementation manners

[0054] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some but not all of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0055] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0056] Referring to "embodiments" in this application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0057] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "attachment" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0059] The term "multiple" as used in this application refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0060] Please refer to Figures 1 to 7 , with the increasing maturity of the magnetic levitation motor technology, the application of the magnetic levitation motor is becoming more and more extensive, and the running stability of the magnetic levitation motor is closely related to the assembly quality of the rotating shaft 130. The rotating shaft 130 of the magnetic levitation motor includes a rotating shaft body 131, a detection ring 132, a first rotor laminate 133, a first spacer ring 134, a permanent magnet 138, a sheath 139, a second spacer ring 136, a second rotor laminate 135, and a threaded ring 137.

[0061] However, in the related art, during the assembly process of the rotating shaft 130 of the magnetic levitation permanent magnet motor, the detection ring 132, the first rotor laminate 133, the first spacer ring 134, the permanent magnet 138, the second spacer ring 136, the second rotor laminate 135, and the threaded ring 137 are all assembled with the rotating shaft body 131 in a clearance fit, and the sheath 139 is assembled onto the permanent magnet 138 by heating interference fit. After the sheath 139 is hot-fitted onto the permanent magnet 138, the permanent magnet 138 is pressed radially along the rotating shaft 130. Along the axial direction of the rotating shaft 130 and away from the detection ring 132, the threaded ring 137 can only press the components between the sheath 139 and the threaded ring 137 by rotation. Along the axial direction of the rotating shaft 130 and away from the threaded ring 137, the already assembled components such as the detection ring 132, the first rotor laminate 133, and the first spacer ring 134 need to be pressed before the sheath 139 is assembled, and the flatness of the end planes of the detection ring 132, the first rotor laminate 133, and the first spacer ring 134 in the axial direction of the rotating shaft needs to be ensured.

[0062] Before the first rotor stack 133 is assembled, it is made into a whole by riveting, bonding, welding, etc., and is directly sleeved on the rotating shaft body 131. Components such as the detection ring 132 and the first spacer ring 134 can ensure the inner and outer diameter dimensions and flatness through machining. However, the first rotor stack 133 is formed by laminating silicon steel sheets, and the end face cannot be machined after lamination. It is very difficult to ensure the flatness of the rotor stack after it is made into a whole. Moreover, since the detection ring 132, the first rotor stack 133, and the first spacer ring 134 arranged on the rotating shaft body 131 cannot be axially pressed on the rotating shaft body 131, and the flatness of the first rotor stack 133 cannot be adjusted, the assembly quality of the rotating shaft 130 is reduced, resulting in a decrease in the operating stability of the magnetic levitation motor using the rotating shaft 130.

[0063] In view of this, the present application provides a pressing tooling 100 for a magnetic levitation motor, including a lower pressing ring 110 and an upper pressing ring 120. The lower pressing ring 110 is adapted to fix an axial end of the rotating shaft 130 of the magnetic levitation motor. The upper pressing ring 120 is arranged on the upper side of the lower pressing ring 110. Along the vertical direction, the upper pressing ring 120 is spaced apart from the lower pressing ring 110. Among them, along the vertical direction, the upper pressing ring 120 is movable relative to the lower pressing ring 110 to axially press the adjacent detection ring 132, the first rotor stack 133, and the first spacer ring 134 on the rotating shaft 130. In this way, before the sheath 139 is assembled, the detection ring 132, the first rotor stack 133, and the first spacer ring 134 can be pressed, improving the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft.

[0064] It should be noted that the magnetic levitation motor mentioned in the embodiments of the present application includes but is not limited to a magnetic levitation permanent magnet motor.

[0065] For the convenience of description in the following embodiments, a pressing tooling 100 for a magnetic levitation motor according to an embodiment of the present application is taken as an example for description.

[0066] Please refer to Figures 1 to 7 , Figure 1 which is a schematic structural diagram of the pressing tooling 100 and the rotating shaft 130 provided by the embodiment of the present application; Figure 2 is Figure 1 the top view of Figure 3 is Figure 2 the cross-sectional view in the A-A direction; Figure 4 is Figure 3 the schematic structural diagram of the rotating shaft 130 in Figure 5 which is a schematic structural diagram of another assembly state of the pressing tooling 100 and the rotating shaft 130 provided by the embodiment of the present application; Figure 6 is Figure 5 the top view of Figure 7 is Figure 6Structural schematic diagram in the B-B direction.

[0067] In this embodiment, the pressing tooling 100 for the magnetic levitation motor includes a lower pressing ring 110 and an upper pressing ring 120. The lower pressing ring 110 is adapted to fix an axial end of the rotating shaft 130 of the magnetic levitation motor. The upper pressing ring 120 is disposed on the upper side of the lower pressing ring 110. Along the vertical direction, the upper pressing ring 120 is spaced apart from the lower pressing ring 110. Wherein, along the vertical direction, the upper pressing ring 120 is movable relative to the lower pressing ring 110 to axially press the adjacent detection ring 132, the first rotor laminate 133 and the first spacer ring 134 on the rotating shaft 130. The first spacer ring 134 may further include a first circumferential surface 1341 and a second circumferential surface 1342. The outer diameter of the first circumferential surface 1341 is greater than that of the second circumferential surface 1342. Between the first circumferential surface 1341 and the second circumferential surface 1342, a first stepped surface 1340 is further provided.

[0068] Before using the pressing tooling 100, the worker first sleeved the adjacent detection ring 132, the first rotor laminate 133 and the first spacer ring 134 provided on the rotating shaft body 131 onto the rotating shaft body 131, and then fixed one axial end of the rotating shaft 130 by using the lower pressing ring 110, and fixed the rotating shaft 130 on the lower pressing ring 110 to keep the position of the rotating shaft body 131 unchanged. The pressing tooling 100 is further provided with an upper pressing ring 120 which is disposed on the upper side of the upper pressing ring 120. When the lower pressing ring 110 fixes the rotating shaft body 131, the upper pressing ring 120 penetrates through the rotating shaft body 131 and abuts the lower pressing ring 110 against the first stepped surface 1340. Since the upper pressing ring 120 is movable relative to the lower pressing ring 110 in the vertical direction, at this time, the upper pressing ring 120 can move downward according to the preset requirements of the assembly of the rotating shaft 130 and press the first stepped surface 1340.

[0069] In the actual production and processing process, the inner diameter dimension, the outer diameter dimension and the flatness of the first detection ring 132 and the first spacer ring 134 can be accurately controlled by machining and other means; the upper pressing ring 120 can press the first rotor laminate 133 through the first spacer ring 134 to make the flatness of the end face of the first rotor laminate 133 along the axis of the rotating shaft 130 meet the preset requirements. When the flatness of the end face of the first rotor laminate 133 along the axis of the rotating shaft 130 does not meet the requirements and the first rotor laminate 133 needs to be pressed, at this time, the distance between the upper pressing ring 120 and the lower pressing ring 110 can be reduced, and then the first rotor laminate 133 is extruded so that the flatness of the end face of the first rotor laminate 133 along the axis of the rotating shaft 130 meets the requirements.

[0070] By adjusting the distance between the upper pressing ring 120 and the lower pressing ring 110, on the one hand, the gap between the detection ring 132, the first rotor laminate 133, and the first spacer ring 134 can be reduced, making the rotating shaft 130 more compact in the overall structure and improving the assembly quality. On the other hand, the flatness of the end face of the first rotor laminate 133 along the axial direction of the rotating shaft 130 can be adjusted, so that the flatness of the end face of the first rotor laminate 133 along the axial direction of the rotating shaft 130 meets the preset requirements, improving the assembly quality of the rotating shaft 130, and further improving the operation stability of the magnetic levitation motor equipped with the rotating shaft 130.

[0071] After adjusting the flatness of the end face of the first rotor laminate 133 along the axial direction of the rotating shaft 130 through the pressing tool 100, the permanent magnet 138, the sheath 139, the second spacer ring 136, the second rotor laminate 135, and the threaded ring 137 can be continuously installed on the rotating shaft body 131, and then the upper pressing ring 120 is removed. That is to say, the inner diameter of the upper pressing ring 120 is larger than the outer diameter of any one of the permanent magnet 138, the sheath 139, the second spacer ring 136, the second rotor laminate 135, and the threaded ring 137. Thus, the production rhythm and assembly efficiency of the rotating shaft 130 can be improved.

[0072] Please refer to Figures 1 to 7 In this embodiment, the pressing tool 100 further includes a driving member 140, and the driving member 140 is connected to the upper pressing ring 120 to drive the upper pressing ring 120 to move in the vertical direction.

[0073] By connecting the driving member 140 to the upper pressing ring 120 to drive the upper pressing ring 120 to move in the vertical direction, the flatness of the first rotor laminate 133 can be adjusted more accurately. Exemplarily, the driving member 140 can be set as a driving motor, so that the moving speed and moving distance of the upper pressing ring 120 can be accurately controlled by controlling the rotation speed of the driving motor, and further the pressing force of the upper pressing ring 120 on the first rotor laminate 133 can be accurately controlled, ensuring that the end face of the first rotor laminate 133 in the axial direction of the rotating shaft 130 can meet the preset flatness requirements. This precise control helps to avoid problems such as component deformation, damage, or poor pressing effect caused by uneven or excessive / insufficient pressing force. Moreover, compared with manual operation, the driving motor has higher consistency and stability during the pressing process, and can reduce errors and defective product rates caused by human factors.

[0074] Please refer to Figures 1 to 7 In this embodiment, the driving member 140 is configured as a bolt 141. The bolt 141 includes a bolt head 141a and a screw rod 141b connected to the bolt head 141a. The bolt head 141a is located on the upper side of the upper pressing ring 120, and the screw rod 141b passes through the upper pressing ring 120 and is in threaded cooperation with the lower pressing ring 110.

[0075] During the process of pressing the first rotor stack 133 using the pressing tooling 100, the bolt head 141a is located on the upper side of the upper pressing ring 120, the screw rod 141b passes through the upper pressing ring 120, and the lower pressing ring 110 is also provided with a thread adapted to the screw rod 141b. When it is necessary to press the first rotor stack 133, the bolt 141 can be rotated to make the screw rod 141b penetrate downward into the lower pressing ring 110, and the bolt head 141a drives the upper pressing ring 120, causing the upper pressing ring 120 to move downward in the vertical direction, thereby adjusting the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130 and improving the assembly quality of the rotating shaft 130.

[0076] Please refer to Figures 1 to 7 , in this embodiment, a plurality of the bolts 141 are provided, and the plurality of bolts 141 are evenly and spaced along the circumferential direction of the upper pressing ring 120.

[0077] By arranging a plurality of bolts 141 in the circumferential direction of the upper pressing ring 120, different positions of the upper pressing ring 120 can be pressed. Exemplarily, when it is necessary to adjust the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130 along the radial direction of the rotating shaft 130, one or more corresponding bolts 141 can be adjusted, so that the corresponding area of the upper pressing ring 120 moves in the vertical direction, thereby adjusting the inclination degree of the upper pressing ring 130 along the radial direction of the rotating shaft 130, and thus the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130 can be accurately adjusted, improving the assembly quality of the rotating shaft 130.

[0078] When adjusting the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130 through the upper pressing ring 120, the upper pressing ring 120 will receive a reaction force from the first spacer ring 134 in direct contact with it. When a plurality of bolts 141 are evenly and spaced along the circumferential direction of the upper pressing ring 120, the plurality of bolts 141 can jointly bear the reaction force received when adjusting the upper pressing ring 120, making the pressure received by each bolt 141 relatively balanced, and avoiding local overload or damage caused by pressure concentration. Moreover, the plurality of bolts 141 are evenly and spaced along the circumferential direction of the upper pressing ring 120, which also helps to ensure that the pressing tooling 100 can maintain overall stability when subjected to external forces, and reduce deformation or loosening caused by uneven stress.

[0079] Please refer to Figures 1 to 7 , in this embodiment, the pressing tooling 100 further includes a first detection device 150, and the first detection device 150 is adapted to detect the flatness of the upper surface 1200 of the upper pressing ring 120.

[0080] The first detection device 150 can detect the flatness of the upper surface 1200 of the upper pressing ring 120. Since the flatness of the detection ring 132, the first spacer ring 134, and the upper pressing ring 120 can be controlled by machining means, the first detection device 150 can obtain the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130 by detecting the flatness of the upper surface 1200 of the upper pressing ring 120. By obtaining the flatness of the first rotor stack 133 through the first detection device 150, the staff can adjust the upper pressing ring 120 according to the detection data, so that the flatness of the first rotor stack 133 meets the preset requirements.

[0081] In some embodiments, the first detection device 150 can move on the upper surface 1200 of the upper pressing ring 120 to detect each part of the upper pressing ring 120 and ensure the accuracy of the detection result.

[0082] Please refer to Figures 1 to 7 , in this embodiment, along the vertical direction, the first detection device 150 is movable.

[0083] When the upper pressing ring 120 moves and adjusts in the vertical direction, the position of the upper pressing ring 120 will also change. By setting the first detection device 150 to be movable in the vertical direction, the applicable range of the first detection device 150 can be expanded, so that the first detection device 150 can detect the upper pressing ring 120 at different positions.

[0084] Please refer to Figures 1 to 7 , in this embodiment, the first detection device 150 includes a detection body 151 and a dial indicator 152. The detection body 151 is adapted to detect the flatness of the upper surface 1200 of the upper pressing ring 120, and the dial indicator 152 is connected to the detection body 151 to display the flatness detected by the detection body 151.

[0085] During the process of detecting the flatness of the upper pressing ring 120, the detection body 151 is used to detect the flatness of the upper surface 1200 of the upper pressing ring 120, and the dial indicator 152 connected to the detection body 151 is used to display the flatness of the upper surface 1200 of the upper pressing ring 120 connected to the detection body 151. This can enable the staff to clearly observe the flatness of the upper surface 1200 of the upper pressing ring 120, and then adjust the position of the upper pressing ring 120 in the vertical direction through the detected flatness of the upper surface 1200, so as to realize the adjustment of the flatness of the end face of the first rotor stack 133 in the axial direction of the rotating shaft 130.

[0086] Please refer to Figures 1 to 7, in this embodiment, the pressing tooling 100 includes an adjusting rod 160 and a connecting rod 170. The adjusting rod 160 extends in the vertical direction. One end of the connecting rod 170 is fixedly connected to the first detecting device 150, and the other end of the connecting rod 170 is slidably disposed on the adjusting rod 160.

[0087] When the position of the upper pressing ring 120 changes, the position of the first detecting device 150 should also change accordingly. At this time, the position of the connecting rod 170 connected to the first detecting device 150 can be adjusted to change the position of the first detecting device 150. One end of the connecting rod 170 is fixedly connected to the first detecting device 150, and the other end of the connecting rod 170 is slidably connected to the adjusting rod 160. By sliding the connecting rod 170 and the adjusting rod 160, the position of the connecting rod 170 can be adjusted. This can expand the applicable range of the detecting device, enabling it to detect the flatness of the end face of the upper pressing ring 120 at different positions in the axial direction of the rotating shaft 130.

[0088] Please refer to Figures 1 to 7 , in this embodiment, the other end of the connecting rod 170 includes a first claw 171 and a second claw 173. The first claw 171 and the second claw clamp the outer peripheral surface of the adjusting rod 160. The pressing tooling 100 further includes a locking member 173 for clamping or loosening the adjusting rod 160 by the first claw 171 and the second claw 173.

[0089] When the position of the first detecting device 150 needs to be adjusted, the locking member 173 corresponding to the first claw 171 and the second claw 173 provided at the other end of the connecting rod 170 can be loosened, so that the first claw 171 and the second claw 173 loosen the adjusting rod 160, and then the connecting rod 170 can move in the vertical direction; when the position of the first detecting device 150 needs to be fixed, the locking member 173 corresponding to the first claw 171 and the second claw 173 provided at the other end of the connecting rod 170 can be tightened, so that the first claw 171 and the second claw 173 clamp the adjusting rod 160, and then the position of the connecting rod 170 is fixed. By adjusting the distance and clamping force between the two clamping fingers (i.e., the first claw 171 and the second claw 173) of the two-finger gripper, it can flexibly adapt to adjusting rods 160 of different shapes and sizes, expanding the applicable range of the connecting rod 170.

[0090] Please refer to Figures 1 to 7 , the pressing tooling 100 further includes a base 180. The base 180 is disposed below the adjusting rod 160 and the lower pressing ring 110. The adjusting rod 160 and the lower pressing ring 110 are both fixedly connected to the base 180.

[0091] By arranging the base 180 on the lower sides of the adjusting rod 160 and the pressing lower ring 110, the center of gravity of the pressing tool 100 can be lowered, the stability of the pressing tool 100 can be enhanced, and the risk resistance ability of the pressing tool 100 can be improved. Additionally, the position of the base 180 can be adjusted at any time, and then the positions of the first detection device 150, the pressing upper ring 120, and the pressing lower ring 110 can be adjusted, thereby expanding the application range of the pressing tool 100.

[0092] A pressing tool 100 for a magnetic levitation motor includes a pressing lower ring 110 and a pressing upper ring 120. The pressing lower ring 110 is adapted to fix an axial end of a rotating shaft 130 of the magnetic levitation motor. The pressing upper ring 120 is disposed on the upper side of the pressing lower ring 110 and is spaced apart from the pressing lower ring 110 in the vertical direction. Among them, in the vertical direction, the pressing upper ring 120 is movable relative to the pressing lower ring 110 to axially press adjacent detection rings 132, a first rotor laminate 133, and a first spacer ring 134 on the rotating shaft 130. The pressing tool 100 further includes a plurality of bolts 141 evenly spaced in the circumferential direction of the pressing upper ring 120. The plurality of bolts 141 are connected to the pressing upper ring 120 to drive the pressing upper ring 120 to move in the vertical direction. The pressing tool 100 further includes a movable first detection device 150 adapted to detect the flatness of the upper surface 1200 of the pressing upper ring 120. The pressing tool 100 includes an adjusting rod 160 and a connecting rod 170. The adjusting rod 160 extends in the vertical direction. One end of the connecting rod 170 is fixedly connected to the first detection device 150, and the other end of the connecting rod 170 is slidably disposed on the adjusting rod 160. The other end of the connecting rod 170 includes a first claw 171 and a second claw 173. The first claw 171 and the second claw clamp the outer peripheral surface of the adjusting rod 160. The pressing tool 100 further includes a locking member 173 for clamping or loosening the adjusting rod 160 by the first claw 171 and the second claw. The pressing tool 100 further includes a base 180 disposed on the lower sides of the adjusting rod 160 and the pressing lower ring 110. Both the adjusting rod 160 and the pressing lower ring 110 are fixedly connected to the base 180.

[0093] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, commodity or device including the said element.

[0094] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for the relevant parts, reference can be made to the partial description of the method embodiment.

[0095] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

[0096] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A clamping tool for a magnetic levitation motor, characterized in that: include: A clamping lower ring is suitable for fixing one axial end of the rotating shaft of the magnetic levitation motor; A clamping upper ring, arranged on the upper side of the clamping lower ring, and the clamping upper ring is spaced apart from the clamping lower ring in the vertical direction; Wherein, along the vertical direction, the clamping upper ring is movable relative to the clamping lower ring so as to clamp the adjacent detection ring, the first rotor lamination and the first spacer ring on the rotating shaft along the axial direction of the rotating shaft.

2. The pressing tool according to claim 1, characterized in that: The clamping tool also includes a driving member, which is connected to the clamping upper ring to drive the clamping upper ring to move in a vertical direction.

3. The pressing tool according to claim 2, characterized in that: The driving member is configured as a bolt, which includes a bolt head and a screw connected to the bolt head. The bolt head is located on the upper side of the clamping upper ring, and the screw passes through the clamping upper ring and is threadably matched with the clamping lower ring.

4. The pressing tool according to claim 3, characterized in that: There are multiple bolts, and along the circumference of the clamping upper ring, the multiple bolts are evenly and spaced apart.

5. The pressing tool according to claim 1, characterized in that: The clamping tool also includes a first detection device, which is suitable for detecting the flatness of the upper surface of the clamping upper ring.

6. The pressing tool according to claim 5, characterized in that: The first detection device is movable in the vertical direction.

7. The pressing tool according to claim 5, characterized in that: The first detection device includes a detection body and a meter head. The detection body is suitable for detecting the flatness of the upper surface of the clamping upper ring. The meter head is connected to the detection body to display the flatness detected by the detection body.

8. The pressing tool according to claim 5, characterized in that: The pressing tool comprises an adjusting rod and a connecting rod. The adjusting rod extends in a vertical direction. One end of the connecting rod is fixedly connected to the first detection device, and the other end of the connecting rod is slidably disposed on the adjusting rod.

9. The pressing tool according to claim 8, characterized in that: The other end of the connecting rod includes a first claw and a second claw, and the first claw and the second claw are clamped on the outer peripheral surface of the adjusting rod. The clamping tool also includes a locking member for clamping or loosening the first claw and the second claw on the adjusting rod.

10. The pressing tool according to claim 8, characterized in that: The clamping tool also includes a base, which is arranged on the lower side of the adjusting rod and the clamping lower ring, and the adjusting rod and the clamping lower ring are both fixedly connected to the base.

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