Motor stator-rotor positioning jig and press equipment

Abstract

This invention belongs to the field of motor processing technology, and specifically relates to a motor stator and rotor positioning fixture and pressing equipment. The motor stator and rotor positioning fixture includes a stator support part, a positioning part, a locking part, a limiting ring, and an anti-rotation part. The stator support part has a central shaft that can penetrate the stator assembly. The positioning part is disposed between the stator support part and the stator assembly, so that the central shaft and the stator assembly are coaxially arranged. The locking part is used to keep the stator assembly in the stator support part. The limiting ring is coaxially sleeved on the central shaft, and the outer peripheral wall of the limiting ring is adapted to fit the central groove of the rotor module, so that the rotor boss is aligned with the mounting groove. Because both the stator assembly and the rotor module are coaxially arranged with the central shaft, the concentricity between the stator assembly and the rotor module can be guaranteed. The entire positioning process does not rely on the operator's experience, thus ensuring the positioning accuracy between the stator assembly and the rotor module and guaranteeing positioning efficiency.

Description

Technical Field

[0001] This invention relates to the field of motor processing technology, and in particular to a motor stator and rotor positioning fixture and pressing equipment. Background Technology

[0002] Currently, in the process of motor processing, a pressing machine is often used to press the rotor module onto the stator assembly. Before pressing, the rotor module and stator assembly need to be pre-pressed manually to achieve positioning between them, thereby ensuring the accuracy of the rotor module and stator assembly during the pressing process.

[0003] The pressing quality of the rotor module and stator assembly by the pressing machine largely depends on the positioning accuracy during the initial pressing. However, during the initial pressing, the positioning accuracy between the rotor module and the stator assembly mainly depends on the operator's personal experience and skill level, which is inefficient. Furthermore, the operator has to bear a large physical load during the initial pressing, which is labor-intensive and can easily lead to fatigue.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a motor stator and rotor positioning fixture and a pressing device to ensure the positioning accuracy and efficiency of the rotor module and stator assembly during the pressing process, thereby improving the pressing quality.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A motor stator and rotor positioning fixture is used to position a rotor module and a stator assembly. The rotor module has a rotor boss, and the stator assembly has a mounting groove for fitting and engaging with the rotor boss. The fixture includes:

[0008] A stator support portion for supporting the stator assembly, and having a central axis that can pass through the stator assembly;

[0009] A positioning part is disposed between the stator support part and the stator assembly so that the central axis is coaxially disposed with the stator assembly;

[0010] A locking part is provided on the stator support part and is used to keep the stator assembly in the stator support part;

[0011] A limiting ring is coaxially sleeved on the central shaft. The outer peripheral wall of the limiting ring is adapted to fit the central groove of the rotor module so that the rotor boss is aligned with the mounting groove.

[0012] The anti-rotation part is connected to the limiting ring and is used to limit the limiting ring from rotating around its own axis.

[0013] Preferably, the stator support includes a support disk and a plurality of support members disposed on the support disk, wherein the support surfaces of the plurality of support members can form a conformal support structure adapted to and conforming to the stator assembly.

[0014] Preferably, any of the support members is annular and is coaxial with the central axis.

[0015] Preferably, the locking part includes a negative pressure source and a vacuum suction hole disposed on any of the support members, the vacuum suction hole being in communication with the negative pressure source.

[0016] Preferably, the stator assembly is provided with at least two positioning holes;

[0017] The positioning unit includes:

[0018] A positioning block is disposed on the stator support portion;

[0019] At least two pins that are adapted to and engage with the positioning holes are provided on the positioning block, and are provided in a one-to-one correspondence with the positioning holes.

[0020] Preferably, the rotor module includes a rotor housing and a skirt disposed at the edge of the rotor housing, and the skirt and the rotor housing are connected by an elastic structure;

[0021] The motor stator and rotor positioning fixture also includes:

[0022] A rotor support portion is disposed above the stator support portion. The rotor support portion is annular, and the skirt overlaps the rotor support portion.

[0023] A buffer section is disposed between the rotor support section and the stator support section, and is used to buffer the rotor support section when it moves closer to the stator support section.

[0024] Preferably, the limiting ring is provided with a limiting groove;

[0025] The anti-rotation part includes a connecting end and an anti-rotation end that is adapted to and snapped into the limiting groove. The connecting end is movably disposed on the stator support part so that the anti-rotation end has an anti-rotation state that is inserted into the limiting groove and a separation state that is separated from the limiting groove.

[0026] Preferably, the motor stator and rotor positioning fixture further includes a cover plate, which is disposed on the side of the rotor module away from the stator assembly, and the cover plate has a clearance hole for avoiding the limiting ring and an abutment block that can abut against the rotor module.

[0027] Motor stator and rotor pressing equipment, used to press rotor modules onto stator assemblies, includes:

[0028] Such as the motor stator and rotor positioning fixture mentioned above;

[0029] A pressing mechanism is disposed on the side of the rotor module away from the stator assembly and is used to apply a pressing force toward the stator assembly to the rotor module;

[0030] The transplanting mechanism is connected to the motor stator and rotor positioning fixture. The transplanting mechanism is used to push the motor stator and rotor positioning fixture to move in a preset direction so that the stator support part has a loading and unloading position away from the pressing mechanism and a pressing position facing the pressing mechanism.

[0031] Preferably, the pressing mechanism includes:

[0032] support;

[0033] A pressure-applying component is disposed on the bracket and has a pressure-applying end that can be close to or away from the rotor module;

[0034] A pressure plate is disposed at the pressure end;

[0035] A pressure detection element is disposed between the pressure end and the pressure plate and is electrically connected to the pressure element. The pressure detection element is used to detect the pressure applied by the pressure element.

[0036] The beneficial effects of this invention are:

[0037] The stator and rotor positioning fixture of the present invention places the stator assembly on the stator support through the central shaft, and positions the stator assembly by the positioning part to ensure that the stator assembly is coaxial with the central shaft. After positioning, the stator assembly is locked by the locking part to prevent the stator assembly from disengaging from the stator support, thereby ensuring the quality of subsequent pressing. After the limiting ring with the rotor module is sleeved on the central shaft, it is locked by the anti-rotation part. Since both the stator assembly and the rotor module are coaxial with the central shaft, the concentricity between the stator assembly and the rotor module can be ensured. The entire positioning process does not rely on the operator's experience to ensure the positioning accuracy between the stator assembly and the rotor module, thereby ensuring positioning efficiency.

[0038] In the motor stator and rotor pressing equipment of the present invention, when positioning the stator assembly and rotor module, the motor stator and rotor positioning fixture is in the loading and unloading position for easy loading. Then, under the action of the transfer mechanism, the motor stator and rotor positioning fixture can be moved to the pressing position. At this time, the motor stator and rotor positioning fixture is directly opposite the pressing mechanism for easy pressing. Then, under the action of the transfer mechanism, the motor stator and rotor positioning fixture can be moved back to the loading and unloading position for unloading. With this configuration, the motor stator and rotor positioning fixture can switch between the loading and unloading position and the pressing position under the action of the transfer mechanism, thereby increasing the loading and unloading space of the stator assembly and rotor module. This can avoid collisions between the operator and the pressing mechanism during the loading and unloading process of the stator assembly and rotor module, improve safety performance, and further improve the positioning efficiency between the stator assembly and rotor module. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the motor stator and rotor positioning fixture in an embodiment of the present invention;

[0040] Figure 2 yes Figure 1 One of the cross-sectional views;

[0041] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0042] Figure 4 yes Figure 2 Enlarged view of a section at point B in the middle;

[0043] Figure 5 yes Figure 1 The second sectional view;

[0044] Figure 6 yes Figure 5 Enlarged view of a section at point C;

[0045] Figure 7 This is a top view of the stator support and positioning parts in an embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of the motor stator and rotor pressing device in an embodiment of the present invention.

[0047] In the picture:

[0048] 100. Stator assembly; 1100. Stator module; 1110. Stator housing; 1200. Connecting module; 1210. Shaft cap; 1220. Rotor hub; 1300. Bearing; 1400. Mounting slot;

[0049] 200, Rotor module; 2100, Rotor housing; 2110, Rotor boss; 2200, Skirt; 2300, Elastic structure;

[0050] 10. Motor stator and rotor positioning fixture; 11. Stator support; 111. Support plate; 112. Support component; 1121. Support surface; 113. Central shaft; 12. Positioning part; 121. Positioning block; 122. Pin; 131. Vacuum suction hole; 14. Limiting ring; 141. Limiting groove; 15. Anti-rotation part; 151. Connecting end; 152. Anti-rotation end; 16. Rotor support; 17. Buffer part; 171. Buffer assembly; 1711. Telescopic guide rod; 1712. Linear bearing; 1713. Compression spring; 18. Cover plate; 181. Clearance hole; 182. Abutment block;

[0051] 20. Pressing mechanism; 21. Support frame; 22. Pressing component; 23. Pressure plate; 24. Pressure testing component;

[0052] 30. Transplanting mechanism; 31. Guide rail; 32. Transplanting drive component. Detailed Implementation

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0054] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0057] Currently, in the process of motor processing, a pressing machine is often used to press the rotor module onto the stator assembly. Before pressing, the rotor boss of the rotor module needs to be positioned with the mounting groove on the stator assembly. This process is often done by operators. However, the positioning accuracy between the rotor module and the stator assembly mainly depends on the operator's personal experience and skill level, which is inefficient. Furthermore, the operator has to bear a large physical load during the initial pressing operation, which can easily lead to fatigue. Therefore, this embodiment aims to propose a motor stator and rotor positioning fixture. By using a mechanical structure, the positioning between the rotor module and the stator assembly can be achieved without relying on the operator's personal experience and skill level, thereby improving the positioning accuracy and efficiency between the rotor module and the stator assembly.

[0058] Specifically, please refer to Figures 1 to 7 The motor stator and rotor positioning fixture 10 includes a stator support part 11, a positioning part 12, a locking part, a limiting ring 14, and an anti-rotation part 15. The stator support part 11 supports the stator assembly 100 and has a central shaft 113 that can pass through the stator assembly 100. The positioning part 12 is disposed between the stator support part 11 and the stator assembly 100 so that the central shaft 113 and the stator assembly 100 are coaxially arranged. The locking part is disposed on the stator support part 11 and is used to keep the stator assembly 100 in the stator support part 11. The limiting ring 14 is coaxially sleeved on the central shaft 113, and the outer peripheral wall of the limiting ring 14 is adapted to fit the central groove of the rotor module 200 so that the rotor boss 2110 is aligned with the mounting groove 1400. The anti-rotation part 15 is connected to the limiting ring 14 and is used to restrict the limiting ring 14 from rotating around its own axis.

[0059] Understandably, the stator assembly 100 is placed on the stator support 11 through the central shaft 113, and the stator assembly 100 is positioned by the positioning part 12 so that the stator assembly 100 is coaxially set with the central shaft 113. After positioning, the stator assembly 100 is locked by the locking part to prevent the stator assembly 100 from separating from the stator support 11, thereby ensuring the subsequent pressing quality. After the limiting ring 14, on which the rotor module 200 is fitted, is placed on the central shaft 113, it is locked by the anti-rotation part 15. The inner peripheral wall of the limiting ring 14 fits and conforms to the central shaft 113 to ensure that the central groove of the rotor module 200 is coaxially set with the central shaft 113. Since both the stator assembly 100 and the rotor module 200 are coaxially set with the central shaft 113, the concentricity between the stator assembly 100 and the rotor module 200 can be guaranteed. The entire positioning process does not need to rely on the experience of the operator to ensure the positioning accuracy between the stator assembly 100 and the rotor module 200, thereby ensuring positioning efficiency.

[0060] In this embodiment, the stator support portion 11 includes a support disk 111 and a plurality of support members 112 disposed on the support disk 111. The support surfaces 1121 of the plurality of support members 112 can form a conformal support structure that adapts to and conforms to the stator assembly 100. It is understood that the bottom surface of the stator assembly 100 is not a flat plane. The conformal support structure can ensure the stability of the stator assembly 100 during the pressing process, thereby preventing the stator assembly 100 from shifting during the pressing process and ensuring the pressing quality.

[0061] In addition, the support member 112 can be detachably fixed to the support plate 111 by bolts or other means, so that the position of the support member 112 can be adjusted according to different models of stator assembly 100, thereby enabling the support surfaces 1121 of multiple support members 112 to form a contour support structure adapted to different models of stator assembly 100.

[0062] Preferably, each support member 112 is annular and coaxially arranged with the central shaft 113. It can be understood that all the support members 112 are sequentially and spaced outside the central shaft 113, thereby ensuring that each support member 112 is coaxially arranged with the stator assembly 100, so as to ensure the uniformity of force on each position of the stator assembly 100 during the pressing process, and thus ensure the pressing quality.

[0063] It should be noted that the stator assembly 100 includes a stator module 1100 and a connecting module 1200. The connecting module 1200 is rotatably disposed inside the stator module 1100 via a bearing 1300. The connecting module 1200 and the inner ring of the bearing 1300 can form a mounting groove 1400 that is adapted to and engages with the rotor protrusion. The mounting groove 1400 is annular. Correspondingly, the rotor protrusion is an annular protrusion adapted to the mounting groove 1400. It should also be noted that the stator module 1100 and the connecting module 1200 have been assembled before the stator assembly 100 and the rotor module 200 are pressed together.

[0064] Furthermore, two support members 112 are preferably used, with the two support members 112 supporting the stator module 1100 and the connecting module 1200 respectively, thereby preventing the stator module 1100 and the connecting module 1200 from separating during the pressing process. It should be noted that since part of the connecting module 1200 can extend to the outside of the stator module 1100, that is, when supporting the entire stator assembly 100, the height of the support member 112 needs to be adjusted according to the part to be supported in order to ensure that the mounting groove 1400 is in a stable position.

[0065] In this embodiment, the locking part includes a negative pressure source and a vacuum suction hole 131 disposed on any of the support members 112, the vacuum suction hole 131 being connected to the negative pressure source. It is understood that when the support member 112 supports the stator assembly 100, each support surface 1121 can fit against its corresponding supported portion. Therefore, the vacuum suction hole 131 disposed on the support surface 1121 can adsorb and lock the supported portion, thus avoiding occupying space on the stator support part 11.

[0066] The connecting module 1200 includes a pivot cap 1210 and a rotor hub 1220 disposed at the end of the pivot cap 1210. Since the bottom surface of the rotor hub 1220 is flatter and has higher hardness than the pivot cap 1210, the support member 112 preferably abuts against the rotor hub 1220 when supporting the connecting module 1200.

[0067] Furthermore, to ensure a locking effect on the stator assembly 100, multiple vacuum suction holes 131 are provided, enabling adsorption at multiple locations on the stator assembly 100. Preferably, there are three vacuum suction holes 131, which are evenly distributed on the corresponding support surfaces 1121.

[0068] In this embodiment, the stator assembly 100 is provided with at least two positioning holes; the positioning part 12 includes a positioning block 121 and at least two pins 122 that are adapted to and engaged with the positioning holes. The positioning block 121 is disposed on the stator support part 11; the pins 122 are disposed on the positioning block 121 and are disposed in a one-to-one correspondence with the positioning holes. It can be understood that one positioning hole and one pin 122 can form a set of pin hole structures. Multiple sets of pin hole structures can not only position the stator assembly 100 radially, but also position the stator assembly 100 circumferentially, thereby preventing the stator assembly 100 from rotating during the pressing process, so as to further improve the pressing quality.

[0069] It should be noted that, to facilitate the installation of the stator assembly 100 onto the motor housing, positioning holes are often provided on the stator housing of the stator module 1100, thus eliminating the need for additional installation. Furthermore, the pin 122 and the positioning block 121 can be connected via detachable structures such as bolts, allowing the position of the pin 122 to be adjusted according to different models of stator assemblies 100, thereby improving the applicability of the motor stator and rotor positioning fixture 10.

[0070] In this embodiment, the rotor module 200 includes a rotor housing 2100 and a skirt 2200 disposed on the edge of the rotor housing 2100. The skirt 2200 and the rotor housing 2100 are connected by an elastic structure 2300. The connection between the skirt 2200 and the rotor housing 2100 can be bent to form the elastic structure 2300, so as to allow the rotor module 200 and the stator assembly 100 to deform during the pressing process. The motor stator and rotor positioning fixture 10 also includes a rotor support 16 and a buffer 17. 6 is disposed above the stator support portion 11. The rotor support portion 16 is annular, and the inner diameter of the rotor support portion 16 is larger than the outer diameter of the stator assembly 100, so that the stator assembly 100 can pass through the rotor support portion 16 and be placed on the stator support portion 11. After the rotor module 200 is placed on the rotor support portion 16, the skirt 2200 can overlap the rotor support portion 16. The buffer portion 17 is disposed between the rotor support portion 16 and the stator support portion 11 and is used to buffer when the rotor support portion 16 approaches the stator support portion 11.

[0071] Understandably, the rotor support 16 can be positioned above the stator support 11 via the buffer 17. The stator assembly 100 passes through the rotor support 16 and is placed on the stator support 11. Subsequently, the limiting ring 14 with the rotor module 200 is fitted onto the central shaft 113, and the skirt 2200 overlaps the rotor support 16. During this process, it is not necessary to separate the rotor support 16 from the stator support 11, thereby further improving the positioning efficiency between the stator assembly 100 and the rotor module 200. During the pressing process, the rotor support 16 can be moved closer to the stator support 11. During this process, the buffer 17 can cushion the rotor support 16, thereby preventing damage to the rotor module 200 and the stator assembly 100 due to excessive impact force, further improving the pressing quality.

[0072] The buffer section 17 includes multiple buffer assemblies 171, which are evenly distributed between the stator support section 11 and the rotor support section 16. Each buffer assembly 171 includes a telescopic guide rod 1711, a linear bearing 1712, and a compression spring 1713. The telescopic guide rod 1711 is disposed between the stator support section 11 and the rotor support section 16. The linear bearing 1712 is fixed to the stator support section 11 by a flange and is sleeved on the outside of the telescopic guide rod 1711 to prevent the telescopic guide rod 1711 from shifting during telescopic movement. The compression spring 1713 is sleeved on the outside of the telescopic guide rod 1711 and is compressed between the stator support section 11 and the rotor support section 16. Preferably, there are four sets of buffer assemblies 171, and the four sets of buffer assemblies 171 are evenly distributed along the circumference of the stator assembly 100 to further ensure the stability of the rotor module 200 during the pressing process with the stator assembly 100.

[0073] It should be noted that during the pressing process between the rotor module 200 and the stator assembly 100, the rotor protrusion on the rotor housing 2100 can move closer to the mounting groove 1400. At this time, the elastic structure 2300 deforms, thereby preventing the skirt 2200 from breaking with the rotor housing 2100. After the pressing is completed, the locking part releases the stator assembly 100. Under the action of its own elastic potential energy, the elastic structure 2300 can drive the rotor module 200 to reset, thereby driving the stator assembly 100 to detach from the stator support part 11, so as to facilitate the removal of the pressed stator assembly 100 and the rotor module 200.

[0074] In this embodiment, the limiting ring 14 is provided with a limiting groove 141; the anti-rotation part 15 includes a connecting end 151 and an anti-rotation end 152 that is adapted to and snapped into the limiting groove 141. The connecting end 151 is movably disposed on the stator support part 11 so that the anti-rotation end 152 has an anti-rotation state of being inserted into the limiting groove 141 and a separation state of being separated from the limiting groove 141. It can be understood that after the limiting ring 14 is sleeved on the central shaft 113, the orientation of the limiting groove 141 is adjusted so that the limiting groove 141 and the anti-rotation end 152 are positioned opposite each other. Then, the anti-rotation end 152 is inserted into the limiting groove 141. Under the action of the anti-rotation end 152 and the limiting groove 141, the circumferential limiting of the rotor module 200 can be completed to prevent the rotor module 200 from rotating, thereby ensuring the pressing quality.

[0075] The connecting end 151 can be rotatably disposed on the stator support part 11 or slidably disposed on the stator support part 11. It can be adjusted according to the actual working conditions, and no specific restrictions are made here.

[0076] In practical applications, the rotor housing 2100 will have a partial indentation on the side opposite to the stator assembly 100. If the rotor housing 2100 directly abuts against the pressing end of the pressing mechanism 20, the rotor housing 2100 can undergo irreversible deformation under the pressing force. To avoid irreversible deformation of the rotor housing 2100, different pressing ends need to be replaced to adapt to different models of rotor housing 2100. However, the disassembly and assembly of the pressing end takes a lot of time and can easily lead to a reduction in pressing efficiency.

[0077] Therefore, in this embodiment, the motor stator and rotor positioning fixture 10 also includes a cover plate 18, which is disposed on the side of the rotor module 200 away from the stator assembly 100, and the cover plate 18 has a clearance hole 181 for avoiding the limiting ring 14 and an abutment block 182 that can abut against the rotor module 200. Understandably, after the rotor module 200 is attached to the rotor support 16, the cover plate 18 is placed above the rotor module 200 and fixed with screws so that the rotor module 200 is clamped between the cover plate 18 and the rotor support 16, thereby completing the positioning of the rotor module 200 along its axial direction and ensuring the stability of the rotor module 200 during the pressing process. At this time, the clearance hole 181 is aligned with the limit ring 14, and the abutment block 182 abuts against the flat part in the rotor housing 2100. Depending on the model of the rotor housing 2100, different cover plates 18 can be replaced to ensure that the abutment block 182 can abut against the flat part in the rotor housing 2100. Furthermore, the side of the cover plate 18 facing away from the abutment block 182 is a flat surface, which can fit against the pressing end of the pressing mechanism 20 to ensure that the pressing force provided by the pressing mechanism 20 can be smoothly transmitted to the rotor module 200. Compared with replacing the pressing end, the cover plate 18 can not only position the rotor module 200 along the axial direction of the rotor module 200 and improve the positioning accuracy between the rotor module 200 and the stator assembly 100, but also the time consumed by installing the cover plate 18 is often much less than the time consumed by replacing the pressing end, thereby improving the pressing efficiency.

[0078] Preferably, the abutment block 182 is frustoconical and coaxially arranged with the clearance hole 181 to ensure the stability of the pressing force during transmission.

[0079] Based on the above, please refer to Figure 8 This embodiment also proposes a motor stator and rotor pressing device for pressing the rotor module 200 to the stator assembly 100. It includes a pressing mechanism 20, a transfer mechanism 30, and a motor stator and rotor positioning fixture 10 as described above. The pressing mechanism 20 is disposed on the side of the rotor module 200 away from the stator assembly 100 and is used to apply a pressing force toward the stator assembly 100 to the rotor module 200. The transfer mechanism 30 is connected to the motor stator and rotor positioning fixture 10 and is used to push the motor stator and rotor positioning fixture 10 to move in a preset direction so that the stator support 11 has a loading and unloading position away from the pressing mechanism 20 and a pressing position opposite to the pressing mechanism 20.

[0080] Understandably, when positioning the stator assembly 100 and the rotor module 200, the motor stator and rotor positioning fixture 10 is in the loading / unloading position for loading. Subsequently, under the action of the transfer mechanism 30, the motor stator and rotor positioning fixture 10 can be moved to the pressing position. At this time, the motor stator and rotor positioning fixture 10 is directly opposite the pressing mechanism 20 for pressing. Then, under the action of the transfer mechanism 30, the motor stator and rotor positioning fixture 10 can be moved back to the loading / unloading position for unloading. With this setting, under the action of the transfer mechanism 30, the motor stator and rotor positioning fixture 10 can switch between the loading / unloading position and the pressing position, thereby increasing the loading / unloading space of the stator assembly 100 and the rotor module 200. This can prevent the operator from colliding with the pressing mechanism 20 during the loading / unloading process of the stator assembly 100 and the rotor module 200, improve safety performance, and further improve the positioning efficiency between the stator assembly 100 and the rotor module 200.

[0081] The transplanting mechanism 30 includes a guide rail 31 and a transplanting drive component 32. The guide rail 31 is arranged between the pressing position and the loading / unloading position, and the support plate 111 is slidably disposed on the guide rail 31 as a slider. Under the action of the transplanting drive component 32, the support plate 111 can slide along the guide rail 31. The transplanting drive component 32 is preferably a linear drive structure such as a rodless cylinder in the prior art, and no specific limitation is made here.

[0082] In this embodiment, the pressing mechanism 20 includes a bracket 21, a pressing member 22, a pressure plate 23, and a pressure detection member 24. The pressing member 22 is disposed on the bracket 21 and has a pressing end that can be close to or away from the rotor module 200. The pressure plate 23 is disposed on the pressing end. The pressure detection member 24 is disposed between the pressing end and the pressure plate 23 and is electrically connected to the pressing member 22. The pressure detection member 24 is used to detect the pressing force applied by the pressing member 22. Understandably, when the motor stator and rotor positioning fixture 10 is in the pressing position, the cover plate 18 and the pressure end are directly opposite each other. Under the action of the pressure-applying component 22, the pressure end can abut against the cover plate 18, thereby applying a pressing force to the rotating module to complete the pressing. During the pressing process, the pressure detection component 24 can detect the pressing force. When the pressing force reaches the threshold, it can send a signal back to the pressure-applying component 22. After receiving the signal, the pressure-applying component 22 stops pressing to prevent the rotor module 200 and stator assembly 100 from being damaged due to excessive pressing force during the pressing process. Among them, the pressure-applying component 22 is preferably an electric cylinder in the prior art, and the pressure detection component 24 is preferably a force sensor in the prior art.

[0083] In addition, the pressure plate 23 is placed between the pressure end and the cover plate 18 as an intermediate component, which can increase the contact area between the pressure end and the cover plate 18, thereby improving the load-bearing capacity of the cover plate 18 and avoiding local deformation or damage to the cover plate 18 caused by the concentration of pressing force.

[0084] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A motor stator and rotor positioning fixture for positioning a rotor module (200) and a stator assembly (100), wherein the rotor module (200) has a rotor boss (2110), and the stator assembly (100) has a mounting groove (1400) for fitting and engaging with the rotor boss (2110). The stator assembly (100) includes a stator module (1100) and a connecting module (1200). The connecting module (1200) is rotatably disposed inside the stator module (1100) via a bearing (1300), and the connecting module (1200) can form a mounting groove (1400) with the inner ring of the bearing (1300) for fitting and engaging with the rotor boss. The connecting module (1200) includes a shaft cap (1210) and a rotor hub (1220) disposed at the end of the shaft cap (1210). Its features are, The motor stator and rotor positioning fixture includes: The stator support (11) is used to support the stator assembly (100) and has a central shaft (113) that can pass through the stator assembly (100); A positioning part (12) is disposed between the stator support part (11) and the stator assembly (100) so that the central shaft (113) is coaxially disposed with the stator assembly (100); A locking part is provided on the stator support part (11) and is used to keep the stator assembly (100) in the stator support part (11); A limiting ring (14) is coaxially sleeved on the central shaft (113). The outer peripheral wall of the limiting ring (14) is adapted to fit the central groove of the rotor module (200) so that the rotor boss (2110) is directly opposite the mounting groove (1400). The anti-rotation part (15) is connected to the limiting ring (14) and is used to restrict the limiting ring (14) from rotating about its own axis; The stator assembly (100) is provided with at least two positioning holes; The positioning part (12) includes: A positioning block (121) is disposed on the stator support part (11); At least two pins (122) that are adapted to and engage with the positioning holes are provided on the positioning block (121) and are provided in a one-to-one correspondence with the positioning holes; The rotor module (200) includes a rotor housing (2100) and a skirt (2200) disposed on the edge of the rotor housing (2100), and the skirt (2200) and the rotor housing (2100) are connected by an elastic structure (2300); The motor stator and rotor positioning fixture also includes: A rotor support (16) is disposed above the stator support (11). The rotor support (16) is annular, and the skirt (2200) overlaps the rotor support (16). A buffer section (17) is disposed between the rotor support section (16) and the stator support section (11) and is used to buffer the rotor support section (16) when it moves closer to the stator support section (11); The limiting ring (14) is provided with a limiting groove (141); The anti-rotation part (15) includes a connecting end (151) and an anti-rotation end (152) that is adapted to and snapped into the limiting groove (141). The connecting end (151) is movably disposed on the stator support part (11) so that the anti-rotation end (152) has an anti-rotation state that is inserted into the limiting groove (141) and a separation state that is separated from the limiting groove (141).

2. The motor stator and rotor positioning fixture according to claim 1, characterized in that, The stator support part (11) includes a support plate (111) and a plurality of support members (112) disposed on the support plate (111). The support surfaces (1121) of the plurality of support members (112) can form a conformal support structure that is adapted to and conforms to the stator assembly (100).

3. The motor stator and rotor positioning fixture according to claim 2, characterized in that, Each of the aforementioned support members (112) is annular and is coaxially arranged with the central axis (113).

4. The motor stator and rotor positioning fixture according to claim 2, characterized in that, The locking part includes a negative pressure source and a vacuum suction hole (131) disposed on any of the support members (112), the vacuum suction hole (131) being connected to the negative pressure source.

5. The motor stator and rotor positioning fixture according to claim 1, characterized in that, The motor stator and rotor positioning fixture also includes a cover plate (18), which is disposed on the side of the rotor module (200) away from the stator assembly (100), and the cover plate (18) has a clearance hole (181) for avoiding the limiting ring (14) and an abutment block (182) that can abut against the rotor module (200).

6. A motor stator-rotor pressing device, used to press a rotor module (200) onto a stator assembly (100), characterized in that, include: The motor stator and rotor positioning fixture (10) as described in any one of claims 1-5; A pressing mechanism (20) is disposed on the side of the rotor module (200) away from the stator assembly (100) and is used to apply a pressing force toward the stator assembly (100) to the rotor module (200); The transplanting mechanism (30) is connected to the motor stator and rotor positioning fixture (10). The transplanting mechanism (30) is used to push the motor stator and rotor positioning fixture (10) to move in a preset direction so that the stator support part (11) has a loading and unloading position away from the pressing mechanism (20) and a pressing position opposite to the pressing mechanism (20).

7. The motor stator and rotor pressing equipment according to claim 6, characterized in that, The pressing mechanism (20) includes: Scaffold (21); A pressure member (22) is disposed on the bracket (21) and has a pressure end that can be close to or away from the rotor module (200); Pressure plate (23) is disposed at the pressure end; A pressure detection element (24) is disposed between the pressure end and the pressure plate (23) and electrically connected to the pressure member (22). The pressure detection element (24) is used to detect the pressure applied by the pressure member (22).

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