Brushless motor winding auxiliary fixture

Abstract

The utility model relates to a brushless motor winding auxiliary clamp in the field of clamps, comprising a rotating shaft sleeve and a mounting seat arranged above the rotating shaft sleeve, wherein a mounting hole for placing a stator frame is opened inside the mounting seat, clamping rods are symmetrically installed on both sides of the mounting seat through a rotating axis, one end of the clamping rod is connected to an L-shaped pressing plate, the top of the mounting seat is detachably connected to a pressing ring, the outer side surface of the pressing ring is detachably connected to a winding plate, the upper surface of the winding plate is provided with a winding column, symmetrical mounting parts are formed on both sides of the mounting seat, the side surfaces of the mounting parts are connected to a clamping cylinder through a mounting bracket, and the telescopic end of the clamping cylinder is connected to a clamping block, the utility model clamps the upper surface of the stator frame through the L-shaped pressing plate, and at the same time, the clamping block is driven by the clamping cylinder to firmly clamp the outer side surface of the stator frame, so that the clamping stability of the stator frame is improved, and the winding quality and efficiency of the stator are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of winding fixtures, in particular to a brushless motor winding auxiliary fixture. Background Art

[0002] Brushless motors, as a type of motor with high efficiency, low noise and long life, are widely used in various electric devices, such as electric vehicles, power tools, household appliances, and aerospace. One of the core components of brushless motors is the stator, and stator winding is a key step in the stator manufacturing process. Stator winding refers to winding the insulated copper wire on the stator core according to a specific number of turns and arrangement to form the electromagnetic field of the motor.

[0003] The existing stator winding fixtures are generally divided into needle-type inner stator winding machines and outer stator winding machines. The existing needle-type inner stator winding machine winds the enameled copper wire (enameled wire for short) into an inductor coil, controls the tension through a tensioner, and a wire nozzle (similar to a needle) carries the enameled wire. The wire arrangement device, under the control of a control system, moves up and down, forward and backward through a needle bar (the wire nozzle is set on the needle bar), and continuously changes the slot position through the installed stator fixture, so that the wire is regularly wound around each slot of the stator frame. Multiple layers can be wound, or multiple wires can be wound in parallel.

[0004] The existing winding fixture is generally provided with a number of winding posts corresponding to the notches of the positioning frame to facilitate winding. However, the existing winding fixture is simple in design and lacks flexibility and adaptability. For stator frames with the same axial diameter but different notches, it is not easy to disassemble and replace the winding posts according to the corresponding notches, thereby making it difficult to meet the winding requirements of stators of different types and specifications. Secondly, the fixing method of the existing winding fixture to the stator frame is often not stable enough, which can easily lead to misalignment and looseness during the winding process, thereby affecting the quality and efficiency of the stator winding. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a brushless motor winding auxiliary clamp to solve the technical problems that the winding clamp in the above background technology is not easy to replace and adjust according to different stator winding requirements, and the existing clamp has poor clamping stability on the stator frame, thereby affecting the quality and efficiency of stator winding.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] The brushless motor winding auxiliary clamp comprises a rotating shaft sleeve and a mounting seat arranged above the rotating shaft sleeve, the mounting seat is provided with a mounting hole for placing the stator frame, and clamping rods are symmetrically installed on both sides of the mounting seat through the rotating axis, one end of the clamping rod extends to the upper surface of the stator frame and is connected to an L-shaped pressure plate, the other end of the clamping rod extends to the rotating shaft sleeve, and a compression spring is provided between the outer side surface of the mounting seat, the L-shaped pressure plate extends to the upper surface of the stator frame and contacts with the upper surface of the stator frame, the top of the mounting seat is detachably connected with a pressure ring, the inner hole of the pressure ring is matched with the outer diameter of the stator frame, the outer side surface of the pressure ring is detachably connected with a winding plate, the upper surface of the winding plate is provided with a plurality of circumferentially distributed winding columns, symmetrical mounting parts are formed on both sides of the mounting seat, the side surfaces of the mounting part are connected with a clamping cylinder through a mounting bracket, the telescopic end of the clamping cylinder extends to the outer side surface of the stator frame, and is connected with a clamping block, the inner side surface of the clamping block contacts with the outer side surface of the stator frame.

[0008] Further in the above description, the surface of the pressure ring is connected to the upper end surface of the mounting seat by bolts, the mounting holes of the pressure ring and the mounting seat are coaxially distributed, a plurality of threaded holes are provided on the outer side of the pressure ring, the winding plate is sleeved with the outer side of the pressure ring, and a plurality of fixing holes matching the threaded holes are provided on the outer side of the winding plate, so that it is convenient to disassemble and replace the winding plate, so that it can be adjusted according to the winding slots in the stator frame, thereby improving the adaptability and practicality of the clamp.

[0009] Further in the above description, the bottom of the clamping block extends toward the mounting hole to form a supporting portion, the supporting portion contacts the lower end surface of the stator frame, and the side of the clamping block extends to form a clamping portion that contacts the outer side surface of the stator frame. The cross-section of the clamping block is distributed in an "L" shape, and the clamping block clamps the stator frame to further improve the clamping stability of the stator frame.

[0010] Further in the above description, the outer side surface of the clamping part is connected to the telescopic end of the clamping cylinder, and the inner side surface of the clamping part is bonded with an anti-slip gasket, which has a clamping and protective effect on the outer side surface of the stator frame to prevent slipping and loosening.

[0011] Further in the above description, the mounting seat is coaxially connected to the rotating sleeve through a fixing block, and a connecting notch for mounting the clamping rod is provided on the outer side of the mounting seat, and the connecting notch is connected to the mounting hole.

[0012] Further in the above description, the mounting portion is formed by cutting into a recess toward the mounting hole, the mounting bracket is connected to the side of the mounting portion by bolts, and a proximity switch is provided on the mounting bracket.

[0013] Further in the above description, at least one positioning groove is provided on the outer side surface of the stator frame, and an installation groove is provided on the upper surface of the pressure ring, a positioning block is connected to the installation groove, and the side surface of the positioning block is engaged with the positioning groove on the stator frame, and the positioning groove is engaged with the positioning block to prevent the stator frame from rotating and sliding in the installation hole.

[0014] The beneficial effects of the utility model are as follows: the detachable connection design of the pressure ring and the winding plate with the mounting seat makes the entire fixture more convenient for assembly, disassembly and maintenance, so that the winding plate can be conveniently disassembled and replaced, so that the winding posts on the winding plate can be adapted to different stator frame usage requirements, and the stator frame is placed in the mounting hole, and the upper surface of the stator frame can be flexibly pressed by the combination of the clamping rod and the L-shaped pressure plate, ensuring stable clamping of the stator frame during the winding process, and at the same time, the clamping block is driven by the telescopic end of the clamping cylinder to firmly clamp the outer side surface of the stator frame, thereby improving the clamping stability of the stator frame, ensuring the accurate positioning of the stator frame during the winding process, which is beneficial to enhancing the winding quality and efficiency of the stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram from a top view of the present embodiment;

[0016] Figure 2 This is a three-dimensional diagram of the present embodiment from a bottom-up perspective;

[0017] Figure 3 It is the front view of this embodiment;

[0018] Figure 4 is a cross-sectional view of the first direction of this embodiment;

[0019] Figure 5 is a cross-sectional view of the second direction of this embodiment;

[0020] The reference numerals in the figure are: 1-rotating sleeve, 2-mounting seat, 3-stator frame, 4-mounting hole, 5-clamping rod, 6-L-shaped pressure plate, 7-compression spring, 8-pressure ring, 9-winding plate, 10-winding column, 11-mounting part, 12-mounting bracket, 13-clamping cylinder, 14-clamping block, 15-fixing hole, 16-support part, 17-clamping part, 18-anti-slip gasket, 19-fixing block, 20-connecting slot, 21-proximity switch, 22-positioning slot, 23-positioning block. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] In this embodiment, refer to Figure 1-Figure 5The brushless motor winding auxiliary fixture specifically implemented includes a rotating sleeve 1 and a mounting seat 2 arranged above the rotating sleeve 1. The mounting seat 2 is provided with a mounting hole 4 for placing a stator frame 3. Clamping rods 5 are symmetrically installed on both sides of the mounting seat 2 through a rotating axis. One end of the clamping rod 5 extends to the upper surface of the stator frame 3 and is connected to an L-shaped pressing plate 6. The other end of the clamping rod 5 extends toward the rotating sleeve 1, and a compression spring 7 is provided between the outer side surface of the mounting seat 2. The L-shaped pressing plate 6 extends toward the upper surface of the stator frame 3 and contacts with the upper surface of the stator frame 3. The rotation direction of the L-shaped pressing plate 6 relative to the mounting seat 2 under the action of the rotating shaft is controlled by compressing or releasing the compression spring 7, and the bounce or squeezing of the L-shaped pressing plate 6 relative to the mounting hole 4 is adjusted.

[0023] The top of the mounting seat 2 is detachably connected to a pressure ring 8, the inner hole of the pressure ring 8 is matched with the outer diameter of the stator frame 3, the outer side of the pressure ring 8 is detachably connected to a winding plate 9, and the upper surface of the winding plate 9 is provided with circumferentially distributed winding posts 10, and the winding plate 9 can be conveniently disassembled for adjustment and replacement of the corresponding winding posts 10.

[0024] Symmetrical mounting portions 11 are formed on both sides of the mounting seat 2. The side surfaces of the mounting portions 11 are connected to clamping cylinders 13 via mounting brackets 12. The telescopic ends of the clamping cylinders 13 extend toward the outer side surfaces of the stator frame 3 and are connected to clamping blocks 14. The inner side surfaces of the clamping blocks 14 are in contact with the outer side surfaces of the stator frame 3. The mounting portions 11 are formed by cutting to be recessed toward the mounting holes 4. The mounting brackets 12 are connected to the side surfaces of the mounting portions 11 via bolts, and a proximity switch 21 is provided on the mounting brackets 12.

[0025] The surface of the pressing ring 8 is connected to the upper end surface of the mounting seat 2 by bolts. The pressing ring 8 is coaxially distributed with the mounting hole 4 of the mounting seat 2. A threaded hole is provided on the outer side of the pressing ring 8. The winding plate 9 is sleeved with the outer side of the pressing ring 8, and a fixing hole 15 matching the threaded hole is provided on the outer side of the winding plate 9, so that it is convenient to disassemble and replace the winding plate 9, so that it can be adjusted according to the winding slot in the stator frame 3, thereby improving the adaptability and practicality of the clamp.

[0026] The bottom of the clamping block 14 extends toward the mounting hole 4 to form a support portion 16, which contacts the lower end surface of the stator frame 3. The side of the clamping block 14 extends to form a clamping portion 17 that contacts the outer side surface of the stator frame 3. The cross section of the clamping block 14 is distributed in an "L" shape. The clamping block 14 clamps and fixes the stator frame 3, thereby further improving the clamping stability of the stator frame 3. The outer side surface of the clamping portion 17 is connected to the telescopic end of the clamping cylinder 13, and the inner side surface of the clamping portion 17 is bonded with an anti-skid pad 18. The anti-skid pad 18 has a clamping and protective effect on the outer side surface of the stator frame 3 to prevent slipping and loosening.

[0027] The mounting seat 2 is coaxially connected to the rotating sleeve 1 through the fixing block 19. The outer side surface of the mounting seat 2 is provided with a connecting notch 20 for installing the clamping rod 5, and the connecting notch 20 is connected to the mounting hole 4. The outer side surface of the stator frame 3 is provided with at least one positioning groove 22, and the upper surface of the pressure ring 8 is provided with a mounting notch, and the mounting notch is connected with a positioning block 23. The side surface of the positioning block 23 is engaged with the positioning groove 22 on the stator frame 3, and the positioning groove 22 is engaged by the positioning block 23, so as to prevent the stator frame 3 from rotating and sliding in the mounting hole 4.

[0028] The specific use principle of this embodiment is as follows: the pressure ring 8 is installed on the top of the mounting seat 2, the wire winding plate 9 is sleeved with the pressure ring 8, and the bolts are passed through the fixing holes 15 and are threadedly connected with the threaded holes on the outer side of the pressure ring 8, so that the wire winding plate 9 can be conveniently disassembled and replaced, so that the wire winding column 10 on the wire winding plate 9 can be suitable for different use requirements of the stator frame 3. Through the combination of the clamping rod 5 and the L-shaped clamping plate 6, the clamping rod 5 is paired with the external clamping cylinder, and the telescopic end of the clamping cylinder is extended to the surface of the clamping rod 5, so that one end of the clamping rod 5 is compressed by the compression spring 7, and the end of the clamping rod 5 connected to the L-shaped clamping plate 6 moves outward under the drive of the rotating shaft, so that the stator frame can be fixed. The frame 3 is placed in the mounting hole 4, and the clamping cylinder is released so that its compression spring 7 drives the clamping rod 5 to reset, and the L-shaped pressure plate 6 presses the upper surface of the stator frame 3, so that the upper surface of the stator frame 3 can be flexibly pressed to ensure the stable clamping of the stator frame 3 during the winding process. At the same time, the proximity switch 21 is located below the stator frame 3. After the stator frame 3 is placed, after the proximity switch 21 detects it, the telescopic end of the clamping cylinder 13 drives the clamping block 14 to firmly clamp the outer side of the stator frame 3, so that it improves the clamping stability of the stator frame 3 and ensures the accurate positioning of the stator frame 3 during the winding process, which is beneficial to enhancing the winding quality and efficiency of the stator.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A brushless motor winding auxiliary fixture, comprising a rotating sleeve and a mounting seat arranged above the rotating sleeve, wherein a mounting hole for placing a stator frame is provided inside the mounting seat, and clamping rods are symmetrically installed on both sides of the mounting seat through a rotating axis, one end of the clamping rod extends to the upper surface of the stator frame and is connected to an L-shaped pressure plate, and the other end of the clamping rod extends to the rotating sleeve and a compression spring is arranged between the outer side surface of the mounting seat, characterized in that: The L-shaped pressure plate extends toward the upper surface of the stator frame and contacts the upper surface of the stator frame. The top of the mounting seat is detachably connected with a pressure ring. The inner hole of the pressure ring matches the outer diameter of the stator frame. The outer side of the pressure ring is detachably connected with a winding plate. The upper surface of the winding plate is provided with a plurality of circumferentially distributed winding columns. Symmetrical mounting parts are formed on both sides of the mounting seat. The side surfaces of the mounting parts are connected with clamping cylinders through mounting brackets. The telescopic end of the clamping cylinder extends toward the outer side surface of the stator frame and is connected with a clamping block. The inner side surface of the clamping block contacts the outer side surface of the stator frame.

2. The brushless motor winding auxiliary fixture according to claim 1, characterized in that: The surface of the pressure ring is connected to the upper end surface of the mounting seat by bolts, the mounting holes of the pressure ring and the mounting seat are coaxially distributed, a plurality of threaded holes are opened on the outer side of the pressure ring, the winding plate is sleeved with the outer side of the pressure ring, and a plurality of fixing holes matching the threaded holes are opened on the outer side of the winding plate.

3. The brushless motor winding auxiliary fixture according to claim 1, characterized in that: The bottom of the clamping block extends toward the mounting hole to form a support portion, which contacts the lower end surface of the stator frame. The side of the clamping block extends to form a clamping portion that contacts the outer side surface of the stator frame. The cross section of the clamping block is "L" shaped.

4. The brushless motor winding auxiliary fixture according to claim 3, characterized in that: The outer side surface of the clamping part is connected to the telescopic end of the clamping cylinder, and the inner side surface of the clamping part is bonded with an anti-slip pad.

5. The brushless motor winding auxiliary fixture according to any one of claims 1 to 4, characterized in that: The mounting seat is coaxially connected with the rotating sleeve through a fixing block, and a connecting notch for mounting a clamping rod is provided on the outer side surface of the mounting seat, and the connecting notch is connected to the mounting hole.

6. The brushless motor winding auxiliary fixture according to any one of claims 1 to 4, characterized in that: The mounting portion is formed by cutting and recessing toward the mounting hole, the mounting bracket is connected to the side surface of the mounting portion by bolts, and a proximity switch is arranged on the mounting bracket.

7. The brushless motor winding auxiliary fixture according to any one of claims 1 to 4, characterized in that: The outer side surface of the stator frame is provided with at least one positioning groove, the upper surface of the pressure ring is provided with an installation notch, the installation notch is connected with a positioning block, and the side surface of the positioning block is engaged with the positioning groove on the stator frame.

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