A pressing device for stator machining

Abstract

The utility model relates to stator processing technical field, propose a kind of pressing device for stator processing, the present design includes stator silicon steel sheet assembly, stator silicon steel sheet assembly includes stator silicon steel sheet cover, stator silicon steel sheet cover inside is respectively set with locating slide rail and slot, stator silicon steel sheet cover inside still is equipped with press-in component, drive component is provided in press-in component, press-in component inside is still provided with the propulsion that can rotate with drive component, to complete the propulsion pressing component for the locking of press-in component and stator silicon steel sheet assembly between pressing;The present design is combined in the guaranteeing pressing stability while, realizes quick dismounting maintenance by worm gear self-locking transmission and modularization plug-in structure;Compared with centrifugal push scheme of comparison file, there is significant improvement in anti-vibration performance, structural reliability and operation convenience, especially suitable for high-precision stator batch production scene.

Description

Technical Field

[0001] This utility model relates to the field of stator processing technology, specifically to a clamping device for stator processing. Background Technology

[0002] The stator is a crucial component of rotating machinery such as electric motors. It typically consists of an iron core and windings, and is fixed inside the motor housing. It provides a stable magnetic field environment for motor operation and interacts with the rotor to convert electrical energy into mechanical energy. During stator manufacturing, the clamping process is critical, primarily for the following reasons: First, it ensures the tightness of the stator core. The stator core is made of multiple stacked silicon steel sheets. Clamping ensures a close fit between the sheets, reducing inter-sheet gaps and magnetic reluctance, thereby improving the magnetic conductivity of the motor's magnetic circuit and enabling more efficient energy conversion. Second, it maintains the shape and dimensional accuracy of the stator. During manufacturing, clamping prevents deformation of the core due to its own weight and processing stress, ensuring that key dimensions such as the inner and outer diameters of the stator meet design requirements, guaranteeing uniform air gaps with the rotor, and ensuring smooth motor operation. Finally, it enhances the overall strength of the stator. In subsequent processing stages, such as winding and impregnation, the compressed stator can better withstand external forces and process effects, avoiding structural loosening or damage due to vibration, collision, etc., thus ensuring the quality and reliability of the motor.

[0003] A search revealed that CN211089392U discloses a motor stator clamping device, comprising a dart-shaped rotating column, a guide structure on the dart-shaped rotating column, and a pushing structure arranged circumferentially at equal intervals on the guide structure. The edge of the dart-shaped rotating column is provided with several arc-shaped edges arranged circumferentially at equal intervals. A rotating shaft is fixedly provided at both the upper and lower ends of the dart-shaped rotating column. A motor is fixedly provided at the upper end of the dart-shaped rotating column, and the output shaft of the motor is coaxially fixedly connected to the corresponding rotating shaft. The guide structure includes two guide discs distributed vertically. Several guide grooves arranged circumferentially at equal intervals are provided on the edges of the guide discs, and a rotating shaft hole is provided in the middle of the guide discs. This invention achieves the extrusion rod extruding the stator silicon steel sheet assembly from the inside out by rotating the dart-shaped rotating column and pushing several pushing structures to slide centrifugally outward along the guide grooves, thus neatly fixing the stator silicon steel sheet assembly and solving the problems mentioned in the background art.

[0004] The problem with the above-mentioned motor stator clamping device is that:

[0005] 1. Insufficient self-locking property during clamping

[0006] This patented structure employs a centrifugal pressing mechanism consisting of a "dart-shaped rotating column and a guide groove," with the clamping force maintained by a continuously output torque from a motor. Under vibration or impact conditions, the sliding fit between the guide groove and the pressing structure is prone to slippage, leading to clamping failure.

[0007] II. Complex structure leads to maintenance difficulties

[0008] The pushing structure needs to slide synchronously within multiple guide grooves, requiring high machining precision for each moving part. In actual use, it is prone to asynchronous movement due to jamming on one side, and disassembly and maintenance require each part to be aligned and reset one by one, making the operation cumbersome. Utility Model Content

[0009] This utility model proposes a clamping device for stator processing, which solves the problems of insufficient clamping self-locking and difficult maintenance caused by complex structure in the prior art.

[0010] The technical solution of this utility model is as follows: A clamping device for stator processing includes a stator silicon steel sheet assembly. The stator silicon steel sheet assembly includes a stator silicon steel sheet sleeve. The inner side of the stator silicon steel sheet sleeve is provided with a positioning slide rail and a slot. The inner side of the stator silicon steel sheet sleeve is also equipped with a pressing component. The pressing component is provided with a driving component. The pressing component is also provided with a pushing and clamping component that can rotate and advance with the driving component to complete the clamping and locking between the pressing component and the stator silicon steel sheet assembly.

[0011] Preferably, the pressing assembly further includes a pressing base, the pressing base being matched with the inner dimensions of the stator silicon steel sheet sleeve, and the pressing assembly further includes a slider, the slider being symmetrically fixedly connected to the outside of the pressing base, the slider being matched with the dimensions of the positioning slide rail.

[0012] Preferably, the pressing assembly further includes two sets of protruding slots, which are formed on the side of the pressing base.

[0013] Preferably, the drive assembly includes a support frame symmetrically and fixedly connected to the top of the pressure seat. The drive assembly also includes a forward and reverse motor, which is fixedly installed on the outside of one side of the support frame. The drive assembly also includes a worm gear rotatably connected to the middle of the two sets of support frames, and the worm gear is fixedly connected to the output end of the forward and reverse motor.

[0014] Preferably, the drive assembly further includes a rotating shaft rotatably connected to the top of the pressure seat, and the drive assembly further includes a worm gear fixedly connected to the upper outer side of the rotating shaft, the worm gear contacting and meshing with the worm.

[0015] Preferably, the push-pressing assembly includes a toothed disc, which is fixedly connected to the lower outer side of the rotating shaft.

[0016] Preferably, the push-pressing assembly further includes two sets of insert plates, each insert plate corresponding to a position of a protruding slot.

[0017] Preferably, the push-pressing assembly further includes a toothed groove group, which is fixedly connected to the side of the insert plate. The toothed groove group is in contact with the toothed disc and is meshed and driven. The push-pressing assembly also includes ball bearings, which are rotatably connected to the upper and lower sides of the insert plate at equal intervals. The ball bearings are in contact with the protruding groove.

[0018] The beneficial effects of this utility model are as follows:

[0019] I. Self-locking clamping achieved by worm gear transmission

[0020] By engaging the worm gear and worm wheel in the drive assembly, and combining this with the meshing of the toothed disc and toothed groove of the push-pressing assembly, a double self-locking effect is formed. Even if the motor drive force is removed after pressing, the insert plate still maintains rigid locking through the meshing tooth surface, completely solving the problem of easy loosening in traditional sliding structures.

[0021] II. Modular insert structure simplifies disassembly and maintenance.

[0022] The system employs a rigid insertion method where symmetrical insert plates and stator silicon steel sheets are fitted into slots, along with a pre-positioning design for the slider of the pressure base. During disassembly, simply reverse the motor to retract the insert plates into the slots, allowing the entire pressed-in component to be removed, avoiding the tedious operation of aligning and resetting each component individually, as required by traditional structures.

[0023] III. Ball bearing guidance reduces motion resistance

[0024] The ball bearings on the upper and lower sides of the insert plate form rolling friction with the protruding groove. Compared with the sliding friction structure in the comparison document, this design reduces wear on moving parts and extends service life. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the overall device of this utility model.

[0027] Figure 2 This is a schematic diagram showing the stator silicon steel sheet assembly and the press-fit assembly of this utility model.

[0028] Figure 3 This is a cross-sectional view of the pressure seat of this utility model;

[0029] Figure 4 This is a schematic diagram showing the structural connection between the drive assembly and the propulsion clamping assembly of this utility model;

[0030] In the diagram: 1. Stator silicon steel sheet assembly; 11. Stator silicon steel sheet sleeve; 111. Positioning slide rail; 12. Slot; 2. Press-in assembly; 21. Press base; 211. Slider; 22. Extension slot; 3. Drive assembly; 31. Forward and reverse motor; 311. Worm gear; 32. Support frame; 33. Rotating shaft; 331. Worm wheel; 4. Push-and-press assembly; 41. Gear plate; 42. Insert plate; 421. Gear groove assembly; 43. Ball bearing. Detailed Implementation

[0031] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0032] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 This utility model provides a technical solution: a clamping device for stator processing, including a stator silicon steel sheet assembly 1, the stator silicon steel sheet assembly 1 including a stator silicon steel sheet sleeve 11, the inner side of the stator silicon steel sheet sleeve 11 is respectively provided with a positioning slide rail 111 and a slot 12, the inner side of the stator silicon steel sheet sleeve 11 is also equipped with a pressing component 2, the pressing component 2 is provided with a driving component 3, and the pressing component 2 is also provided with a pushing pressing component 4 that can rotate and advance with the driving component 3 to complete the pressing and locking between the pressing component 2 and the stator silicon steel sheet assembly 1;

[0033] This design combines worm gear self-locking transmission with a modular plug-in structure, which ensures clamping stability while enabling rapid disassembly and maintenance. Compared with the centrifugal pushing scheme in the comparison document, it has significant improvements in vibration resistance, structural reliability and ease of operation, and is especially suitable for high-precision stator mass production scenarios.

[0034] Please see Figure 2 The pressing assembly 2 also includes a pressing base 21, which matches the inner size of the stator silicon steel sheet sleeve 11. The pressing assembly 2 also includes a slider 211, which is symmetrically fixedly connected to the outside of the pressing base 21. The slider 211 matches the size of the positioning slide rail 111. By providing a slider 211 on the outside of the pressing base 21, the pressing base 21 can be pre-positioned before being inserted into the stator silicon steel sheet sleeve 11, and the slot 12 and the protrusion slot 22 are kept in corresponding positions.

[0035] Please see Figure 2 The pressing component 2 also includes two sets of protruding slots 22, which are opened on the side of the pressing base 21.

[0036] Please see Figure 4 The drive assembly 3 includes a support frame 32, which is symmetrically and fixedly connected to the top of the pressure seat 21. The drive assembly 3 also includes a forward and reverse motor 31, which is fixedly installed on the outside of one side of the support frame 32. The drive assembly 3 also includes a worm gear 311, which is rotatably connected to the middle of the two sets of support frames 32, and the worm gear 311 is fixedly connected to the output end of the forward and reverse motor 31.

[0037] The drive assembly 3 also includes a rotating shaft 33, which is rotatably connected to the top of the pressure seat 21. The drive assembly 3 also includes a worm gear 331, which is fixedly connected to the upper outer side of the rotating shaft 33. The worm gear 331 is in contact with the worm 311 and is meshed and rotatably connected.

[0038] The self-locking effect formed between the worm 311 and the worm wheel 331 can prevent loosening after rotation and tightening.

[0039] The push-press assembly 4 includes a toothed disc 41, which is fixedly connected to the lower part of the outer side of the rotating shaft 33.

[0040] The push-pressing assembly 4 also includes two sets of insert plates 42, each insert plate 42 corresponding to the position of each protruding slot 22.

[0041] The push-pressing assembly 4 also includes a toothed groove group 421, which is fixedly connected to the side of the insert plate 42. The toothed groove group 421 is in contact with the toothed disc 41 and is meshed and connected. The push-pressing assembly 4 also includes a ball bearing 43, which is rotatably connected to the upper and lower sides of the insert plate 42 at equal intervals. The ball bearing 43 is in contact with the protrusion groove 22.

[0042] This design allows the insert plate 42 to move more smoothly within the extension slot 22.

[0043] Working principle:

[0044] First, take out the pressure seat 21, align the slider 211 with the positioning slide rail 111, and then insert the pressure seat 21 into the stator silicon steel sheet sleeve 11 to complete the pre-positioning work. At this time, the slot 12 and the extension slot 22 are in the same position.

[0045] At this time, the forward and reverse motor 31 is started to drive the worm 311 to rotate, and under the meshing action of the worm 311 and the worm wheel 331, the rotating shaft 33 fixed inside the worm wheel 331 will drive the gear disk 41 to rotate synchronously.

[0046] The insert plates 42 located on both sides of the gear plate 41 will begin to move synchronously in opposite directions under the meshing transmission action of the gear groove group 421 and the gear plate 41 until the two sets of insert plates 42 extend out of the extension groove 22 and are inserted into the slot 12. The above completes the work of pressing and locking the pressure seat 21 in the stator silicon steel sheet sleeve 11.

[0047] Similarly, after the stamping is completed, the forward and reverse motor 31 is started to drive the worm gear 311 to reverse, thereby causing the insert plate 42 to disengage from the extension slot 22 and reset. Then the pressure seat 21 can be quickly removed from the stator silicon steel sheet sleeve 11.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping device for stator processing, comprising a stator silicon steel sheet assembly (1), characterized in that, The stator silicon steel sheet assembly (1) includes a stator silicon steel sheet sleeve (11). The stator silicon steel sheet sleeve (11) has a positioning slide rail (111) and a slot (12) respectively on its inner side. The stator silicon steel sheet sleeve (11) is also equipped with a pressing assembly (2). The pressing assembly (2) is equipped with a driving assembly (3). The pressing assembly (2) is also equipped with a pushing pressing assembly (4) that can rotate and advance with the driving assembly (3) to complete the pressing and locking between the pressing assembly (2) and the stator silicon steel sheet assembly (1).

2. The clamping device for stator processing according to claim 1, characterized in that, The pressing assembly (2) also includes a pressing base (21), which matches the inner size of the stator silicon steel sheet sleeve (11). The pressing assembly (2) also includes a slider (211), which is symmetrically fixedly connected to the outside of the pressing base (21). The slider (211) matches the size of the positioning slide rail (111).

3. The clamping device for stator processing according to claim 2, characterized in that, The pressing component (2) also includes two sets of protruding slots (22), which are opened on the side of the pressing base (21).

4. A clamping device for stator processing according to claim 2, characterized in that, The drive assembly (3) includes a support frame (32), which is symmetrically fixedly connected to the top of the pressure seat (21). The drive assembly (3) also includes a forward and reverse motor (31), which is fixedly installed on the outside of one side of the support frame (32). The drive assembly (3) also includes a worm gear (311), which is rotatably connected to the middle of the two sets of support frames (32), and the worm gear (311) is fixedly connected to the output end of the forward and reverse motor (31).

5. A clamping device for stator machining according to claim 4, characterized in that, The drive assembly (3) also includes a rotating shaft (33), which is rotatably connected to the top of the pressure seat (21). The drive assembly (3) also includes a worm gear (331), which is fixedly connected to the upper part of the outer side of the rotating shaft (33). The worm gear (331) is in contact with the worm (311) and is meshed and rotatably connected.

6. A clamping device for stator machining according to claim 5, characterized in that, The push-press assembly (4) includes a toothed disc (41), which is fixedly connected to the lower part of the outer side of the rotating shaft (33).

7. A clamping device for stator machining according to claim 6, characterized in that, The push-pressing assembly (4) also includes two sets of insert plates (42), each of which corresponds to the position of each protruding slot (22).

8. A clamping device for stator machining according to claim 7, characterized in that, The push-press assembly (4) also includes a toothed groove group (421), which is fixedly connected to the side of the insert plate (42). The toothed groove group (421) is in contact with the toothed disc (41) and is meshed and driven. The push-press assembly (4) also includes a ball bearing (43), which is rotatably connected to the upper and lower sides of the insert plate (42) at equal intervals. The ball bearing (43) is in contact with the protrusion groove (22).

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