An adjustable clamping device

Abstract

This utility model discloses an adjustable clamping device for clamping a flat wire motor stator. The adjustable clamping device includes: a base, a fixed plate, and an eccentric pin. The base has a first connecting hole. The fixed plate is stacked on the base for placing the flat wire motor stator. The fixed plate has a second connecting hole. The eccentric pin is rotatably inserted into the first connecting hole. One end of the eccentric pin has an eccentrically positioned protrusion that inserts into the second connecting hole and abuts against the inner wall of the second connecting hole. This application inserts the eccentric pin into the first and second connecting holes, and the eccentrically positioned protrusion on the eccentric pin abuts against the inner wall of the second connecting hole. When the eccentric pin is rotated, the direction of the force exerted by the protrusion on the inner wall of the second connecting hole changes continuously at different positions, thereby causing the fixed plate to rotate slightly. This solves the problem that existing flat wire motor stator processing cannot achieve fine adjustments and cannot meet high-precision processing requirements.

Description

Technical Field

[0001] This utility model relates to the field of flat wire motor stator technology, and in particular to an adjustable clamping device. Background Technology

[0002] In the manufacturing and assembly process of flat wire motors, the positioning and fixing accuracy of the stator has a crucial impact on the overall performance and operational stability of the motor.

[0003] Existing motor stators are typically held in place using clamps to ensure stability during machining and assembly. However, existing clamping structures make it difficult to move and adjust the stator flexibly after clamping. For position adjustment, the entire base is usually mounted on a sliding guide rail, but due to the design of the clamp and the limitations of the guide rail, operators often find it difficult to make fine adjustments, failing to meet the requirements of high-precision machining and resulting in positioning errors of the stator while clamped.

[0004] Therefore, existing technologies still need improvement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an adjustable clamping device, which aims to solve the problem that the existing flat wire motor stator processing cannot achieve fine adjustment and is difficult to meet the requirements of high-precision processing.

[0006] The adjustable clamping device provided in this application adopts the following technical solution:

[0007] An adjustable clamping device for clamping a flat wire motor stator, wherein the adjustable clamping device comprises:

[0008] A base, wherein a first connecting hole is provided on the base;

[0009] A fixing plate, stacked on the base, is used to place the flat wire motor stator; the fixing plate is provided with a second connecting hole;

[0010] An eccentric pin is rotatably inserted into the first connecting hole; one end of the eccentric pin is eccentrically provided with a protrusion, which is inserted into the second connecting hole and abuts against the inner wall of the second connecting hole.

[0011] Optionally, in the adjustable clamping device, the eccentric pin includes a shaft; the protrusion is located at the end of the shaft; and the shaft abuts against the inner wall of the first connecting hole.

[0012] Optionally, in the adjustable clamping device, the cross-sectional shape of the second connecting hole is elliptical.

[0013] Optionally, in the adjustable clamping device, the cross-sectional width of the protrusion is equal to the minor axis length of the second connecting hole.

[0014] Optionally, in the adjustable clamping device, the length of the protrusion is less than or equal to the depth of the second connecting hole.

[0015] Optionally, in the adjustable clamping device, the eccentric pin is further provided with a mounting hole; the mounting hole is used for inserting fittings.

[0016] Optionally, in the adjustable clamping device, the base is provided with a first screw hole; the fixing plate is provided with a second screw hole corresponding to the position of the first screw hole; and a bolt passes through the first screw hole and the second screw hole to screw the base and the fixing plate together.

[0017] Optionally, in the adjustable clamping device, a positioning groove is provided on the outer side wall of the flat wire motor stator; a positioning post is provided on the inner side wall of the fixing plate corresponding to the position of the positioning groove; the positioning post is engaged with the positioning groove.

[0018] Optionally, the adjustable clamping device further includes a base; the base is fixedly mounted on the base.

[0019] Optionally, the adjustable clamping device further includes a protective disk; the protective disk is disposed on the fixed disk; rotating the fixed disk drives the protective disk to rotate.

[0020] Compared with the prior art, the embodiments of this utility model have the following advantages:

[0021] This application inserts an eccentric pin into the first connecting hole and the second connecting hole. When the eccentric pin is rotated, the eccentrically set protrusion abuts against the inner wall of the second connecting hole, causing the fixed plate to rotate slightly, thereby causing the stator of the flat wire motor to shift. This solves the problem that the existing flat wire motor stator processing cannot achieve fine adjustment and is difficult to meet the requirements of high-precision processing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a schematic diagram of the overall structure of the adjustable clamping device in the embodiments of this application;

[0024] Figure 2 This is a partial structural schematic diagram of the adjustable clamping device in the embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the eccentric pin in the embodiments of this application;

[0026] Figure 4 This is a top view of the eccentric pin in the embodiments of this application;

[0027] Figure 5 This is a schematic diagram of the base structure in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of the fixed disk in the embodiments of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the flat wire motor stator in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 100, flat wire motor stator; 110, positioning groove; 200, base; 210, first connecting hole; 220, first screw hole; 300, fixing plate; 310, second connecting hole; 320, second screw hole; 330, positioning pin; 400, eccentric pin; 410, protrusion; 420, shaft; 430, assembly hole; 500, base. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 and Figure 2As shown in the figure, this application discloses an adjustable clamping device for clamping a flat wire motor stator 100. The adjustable clamping device includes: a base 200 with a first connecting hole 210; a fixing plate 300 stacked on the base 200 for placing the flat wire motor stator 100; a fixing plate 300 with a second connecting hole 310; and an eccentric pin 400 rotatably inserted into the first connecting hole 210. One end of the eccentric pin 400 is eccentrically provided with a protrusion 410, which is inserted into the second connecting hole 310 and abuts against the inner wall of the second connecting hole 310.

[0034] In use, the fixed disk 300 is stacked on top of the base 200, with the first connecting hole 210 and the second connecting hole 310 aligned. An eccentric pin 400 is inserted into the first connecting hole 210, penetrating through it, so that the eccentrically positioned protrusion 410 is inserted into the second connecting hole 310, with the protrusion 410 abutting against the inner wall of the second connecting hole 310. When the eccentric pin 400 is rotated, the protrusion 410 remains in contact with the inner wall of the second connecting hole 310. Because the protrusion 410 is eccentrically positioned, the direction of the force exerted by the protrusion 410 on the hole wall of the second connecting hole 310 changes at different positions during rotation, causing the fixed disk 300 to rotate slightly, thus causing the flat wire motor stator 100 placed on the fixed disk 300 to rotate slightly synchronously.

[0035] The adjustable clamping device disclosed in this utility model can be used in the processing of the flat wire motor stator 100, for example in the paper insertion processing program of the flat wire motor stator 100, the flat wire insertion processing program, the processing program for adjusting the concentricity of the insulating paper protector and the flat wire motor stator 100, and other processing programs that require slight adjustments to the flat wire motor stator 100.

[0036] Specifically, during the processing of the flat wire motor stator 100, the fixing plate 300 is first stacked on the base 200, and the fixing plate 300 is manually rotated to align the second connecting hole 310 with the first connecting hole 210. Then, the end of the eccentric pin 400 with the protrusion 410 is inserted into the first connecting hole 210 and passes through the first connecting hole 210 until the protrusion 410 abuts against the inner wall of the second connecting hole 310. Finally, the flat wire motor stator 100 is placed on the fixing plate 300.

[0037] When the eccentric pin 400 is rotated, the protrusion 410 is eccentrically positioned. The central axis of the main body of the eccentric pin 400 and the central axis of the protrusion 410 are not on the same straight line. Therefore, the rotation trajectory of the protrusion 410 is different from that of the main body of the eccentric pin 400. The protrusion 410 is equivalent to making a circular motion around the center of the main body of the eccentric pin 400. The protrusion 410 is always in contact with the inner wall of the second connecting hole 310, so that the protrusion 410 continuously changes its contact position with the inner wall of the second connecting hole 310, thereby causing the fixed plate 300 to rotate slightly, which in turn causes the flat wire motor stator 100 to rotate slightly, realizing a slight adjustment of the position of the flat wire motor stator 100, so that its processing process maintains a high degree of alignment with other equipment.

[0038] like Figure 3 and Figure 4 As shown, in this embodiment, the eccentric pin 400 includes a shaft 420; the protrusion 410 is disposed at the end of the shaft 420; the shaft 420 abuts against the inner sidewall of the first connecting hole 210. The cross-sectional shape of the second connecting hole 310 is elliptical.

[0039] In use, the protrusion 410 is eccentrically set at the end of the shaft body 420, the cross-sectional shape of the first connecting hole 210 is circular, the cross-sectional shape of the second connecting hole 310 is elliptical, and the diameter of the first connecting hole 210 is greater than the length of the short shaft of the second connecting hole 310.

[0040] Specifically, the shaft body 420 is inserted into the first connecting hole 210 and abuts against the inner wall of the first connecting hole 210; the protrusion 410 is inserted into the second connecting hole 310 and abuts against the inner wall of the second connecting hole 310. For example... Figure 5 and Figure 6 As shown, in this embodiment, since the first connecting hole 210 is circular and the second connecting hole 310 is elliptical, and the diameter of the first connecting hole 210 is greater than the length of the minor axis of the second connecting hole 310, the shaft 420 of the eccentric pin 400 can rotate freely within the first connecting hole 210, and an eccentric torque is generated between the eccentrically positioned protrusion 410 and the second connecting hole 310. Therefore, when the eccentric pin 400 is rotated, the protrusion 410 abuts against the inner wall of the second connecting hole 310, allowing the eccentric torque to be transmitted to the fixed disk 300, thereby driving the fixed disk 300 to rotate.

[0041] When the flat wire motor stator 100 is placed on the fixed plate 300, the flat wire motor stator 100 rotates synchronously, thereby achieving a slight adjustment of the positioning angle of the flat wire motor, improving the concentricity of the flat wire motor stator 100 with other devices, and thus improving the machining accuracy of the flat wire motor stator 100.

[0042] In this embodiment, the protrusion 410 has a circular cross-sectional shape; the diameter of the first connecting hole 210 is equal to the diameter of the shaft body 420 of the eccentric shaft, and the length of the short shaft of the second connecting hole 310 is equal to the diameter of the protrusion 410. This allows the shaft body 420 to fully abut against the first connecting hole 210, and the protrusion 410 to fully abut against the second connecting hole 310. When the shaft body 420 is rotated, the protrusion 410 effectively drives the fixed disk 300 to rotate, improving the smoothness of rotation and also increasing the adjustment accuracy.

[0043] like Figure 2 As shown, in this embodiment, the length of the protrusion 410 is less than or equal to the depth of the second connecting hole 310. Specifically, the depth of the second connecting hole 310 is greater than the length of the protrusion 410. This design allows the second connecting hole 310 to completely accommodate the protrusion 410 without the protrusion 410 penetrating through it, thus preventing direct contact between the protrusion 410 and the flat wire motor stator 100 placed on the fixed disk 300, which could damage the flat wire motor stator 100. In one embodiment, the length of the protrusion 410 is equal to the depth of the second connecting hole 310. When the protrusion 410 is inserted into the second connecting hole 310, it not only abuts against the two sidewalls of the second connecting hole 310 in the short axis direction, but also its top abuts against the top interior of the second connecting hole 310, increasing the contact points between the protrusion 410 and the second connecting hole 310 and effectively transmitting torque to meet high precision and high-efficiency requirements.

[0044] like Figure 3 As shown, in one embodiment of this utility model, the eccentric pin 400 is further provided with a mounting hole 430; the mounting hole 430 is used for inserting fittings. Specifically, the mounting hole 430 is located on the end of the eccentric pin 400 opposite to the protrusion 410 and outside the first connecting hole 210. When it is necessary to rotate the eccentric pin 400, a screwdriver or other connecting rod can be inserted into the mounting hole 430, and the eccentric pin 400 can be rotated by means of the screwdriver or its connecting rod, improving convenience.

[0045] like Figure 2 As shown, in another embodiment of the present invention, the base 200 is provided with a first screw hole 220; the fixing plate 300 is provided with a second screw hole 320 corresponding to the first screw hole 220; the base 200 and the fixing plate 300 are screwed together by a bolt passing through the first screw hole 220 and the second screw hole 320.

[0046] Specifically, the first screw hole 220 on the base 200 and the second screw hole 320 on the fixed plate 300 are arranged opposite each other. When the fixed plate 300 is stacked on the base 200, the first screw hole 220 and the second screw hole 320 are screwed together by bolts passing through them. It should be noted that in the adjustable clamping device disclosed in this application, although the fixed plate 300 and the base 200 are screwed together, the base 200 and the fixed plate 300 are not integrally formed. Therefore, after the base 200 and the fixed plate 300 are screwed together, the fixed plate 300 can still be slightly rotated by rotating the eccentric pin 400, thereby achieving slight adjustment of the flat wire motor stator 100.

[0047] like Figure 7 As shown, in this embodiment, the outer side wall of the flat wire motor stator 100 is provided with a positioning groove 110; the inner side wall of the fixing plate 300 is provided with a positioning post 330 corresponding to the positioning groove 110; the positioning post 330 is engaged with the positioning groove 110.

[0048] In use, after stacking the fixed plate 300 on the base 200 and screwing the fixed plate 300 and the base 200 together, the positioning groove 110 on the flat wire motor stator 100 is snapped onto the positioning post 330 on the fixed plate 300 to ensure that the flat wire motor stator 100 is stably placed on the fixed plate 300.

[0049] In one embodiment, a plurality of positioning grooves 110 are provided; the plurality of positioning grooves 110 are spaced apart on the outer side wall of the flat wire motor stator 100; a plurality of positioning posts 330 are provided; the plurality of positioning posts 330 are spaced apart on the inner side wall of the fixed disk 300. By providing multiple positioning grooves 110 and positioning posts 330, the flat wire motor stator 100 is limited at different positions to prevent displacement of the flat wire motor stator 100 during processing. At the same time, it ensures that the flat wire motor stator 100 and the fixed disk 300 are always concentric and coaxial. When the eccentric pin 400 is rotated, it drives the fixed disk 300 to rotate, ensuring that the flat wire motor stator 100 rotates synchronously and the rotation angle is consistent with that of the fixed disk 300, thereby improving the adjustment accuracy.

[0050] In another embodiment of this utility model, the adjustable clamping device further includes a base 500; the base 200 is fixedly disposed on the base 500. By fixing the base 200 on the base 500, the base 500 can be installed on other workbenches or machine housings, improving the flexibility of the adjustable clamping device and increasing the overall stability of the clamping device.

[0051] In summary, this utility model discloses an adjustable clamping device for clamping a flat wire motor stator. The adjustable clamping device includes: a base, a fixed plate, and an eccentric pin. The base has a first connecting hole. The fixed plate, stacked on the base, is used to hold the flat wire motor stator. The fixed plate has a second connecting hole. The eccentric pin is rotatably inserted into the first connecting hole. One end of the eccentric pin has an eccentrically positioned protrusion that inserts into the second connecting hole and abuts against the inner wall of the second connecting hole. This application inserts the eccentric pin into the first and second connecting holes, and the eccentrically positioned protrusion on the eccentric pin abuts against the inner wall of the second connecting hole. When the eccentric pin is rotated, the direction of the force exerted by the protrusion on the inner wall of the second connecting hole changes continuously at different positions, thereby causing the fixed plate to rotate slightly. This solves the problem that existing flat wire motor stator processing cannot achieve fine adjustments, making it difficult to meet high-precision processing requirements.

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0053] It should be noted that this utility model uses an adjustable clamping device as an example to introduce the specific structure and working principle of this utility model, but the application of this utility model is not limited to the adjustable clamping device, and can also be applied to the production and use of other similar workpieces.

[0054] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

[0055] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. An adjustable clamping device for clamping a stator of a flat wire motor, characterized in that The adjustable clamping device includes: A base, wherein a first connecting hole is provided on the base; A fixing plate, stacked on the base, is used to place the flat wire motor stator; the fixing plate is provided with a second connecting hole; An eccentric pin is rotatably inserted into the first connecting hole; one end of the eccentric pin is eccentrically provided with a protrusion, which is inserted into the second connecting hole and abuts against the inner wall of the second connecting hole.

2. The adjustable clamping device of claim 1, wherein, The eccentric pin includes a shaft; the protrusion is located at the end of the shaft; the shaft abuts against the inner wall of the first connecting hole.

3. The adjustable clamping device of claim 2, wherein, The cross-sectional shape of the second connecting hole is elliptical.

4. The adjustable clamping device of claim 3, wherein, The cross-sectional width of the protrusion is equal to the minor axis length of the second connecting hole.

5. The adjustable clamping device according to claim 4, characterized in that, The length of the protrusion is less than or equal to the depth of the second connecting hole.

6. The adjustable clamping device of claim 1, wherein, The eccentric pin is also provided with an assembly hole; the assembly hole is used for inserting fittings.

7. The adjustable clamping device of claim 1, wherein, The base is provided with a first screw hole; the fixed plate is provided with a second screw hole at the position corresponding to the first screw hole; a bolt passes through the first screw hole and the second screw hole to screw the base and the fixed plate together.

8. The adjustable clamping device of claim 1, wherein, The outer side wall of the flat wire motor stator is provided with a positioning groove; the inner side wall of the fixing plate is provided with a positioning post corresponding to the positioning groove; the positioning post is engaged with the positioning groove.

9. The adjustable clamping device of claim 8, wherein, The positioning slots are provided in a plurality of places; the plurality of positioning slots are distributed at intervals on the outer side wall of the flat wire motor stator; the positioning posts are provided in a plurality of places; the plurality of positioning posts are distributed at intervals on the inner side wall of the fixed plate.

10. The adjustable clamping device of claim 1, wherein, The adjustable clamping device also includes a base; the base is fixedly mounted on the base.

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