Clamping mechanism and stator winding machine

Abstract

The utility model discloses a clamping mechanism and a stator winding machine, and relates to the technical field of motor manufacturing, the clamping mechanism comprises a material seat, the top of the material seat is provided with a positioning groove, and the positioning groove is used for placing a stator; the positioning assembly is arranged on the material base, the positioning assembly comprises a positioning column, one end of the positioning column faces the interior of the positioning groove and moves on the material base in the first direction so as to abut against the periphery of the stator or release the stator, and the end, facing the positioning groove, of the positioning column is tangent to the periphery of the stator. According to the technical scheme provided by the utility model, the stator clamping stability is improved, and the stator can be prevented from being damaged in the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a clamping mechanism and a stator winding machine. Background Art

[0002] In the field of motor manufacturing, the stator is one of the core components of the motor. The structural stability and winding accuracy are directly related to the performance and efficiency of the motor. The stator is mainly composed of an iron core and windings embedded in the core slots. The windings generate a magnetic field through electric current and interact with the rotor to achieve the conversion of electrical energy into mechanical energy. In traditional stator winding methods, most of them use a pressing block to press the end face of the stator to fix the stator. Some stator end faces do not have clamping positions, which makes the stator lack effective positioning and fixing measures, affecting the winding. Utility Model Content

[0003] The main purpose of the utility model is to provide a clamping mechanism and a stator winding machine, which are intended to clamp the stator during winding to avoid displacement during the stator winding process.

[0004] In order to achieve the above-mentioned purpose, the clamping mechanism proposed by the utility model comprises:

[0005] A material seat, having a positioning groove on the top, wherein the positioning groove is used to place the stator; and

[0006] A positioning assembly is arranged on the material seat, and the positioning assembly includes a positioning column, one end of which faces the positioning groove and moves along a first direction on the material seat to abut against the outer periphery of the stator or release the stator, and one end of the positioning column facing the positioning groove is tangent to the outer periphery of the stator.

[0007] In one embodiment, the material seat is provided with a communication groove along the first direction, the communication groove is communicated with the positioning groove, and the positioning column is slidably disposed in the communication groove.

[0008] In one embodiment, the positioning assembly further includes a pull ring and a pull rod, the pull rod is connected to one end of the positioning column away from the positioning groove, and the pull ring is connected to a side of the pull rod away from the positioning column.

[0009] In one embodiment, the clamping mechanism further comprises a positioning seat, the positioning seat is arranged at one end of the communicating groove away from the positioning groove, and the positioning seat is provided with a limiting groove communicating with the communicating groove;

[0010] The diameter of one end of the limiting groove away from the communicating groove is larger than that of the pull rod and smaller than that of the positioning column.

[0011] In one embodiment, the pull rod is detachably connected to the pull ring.

[0012] In one embodiment, the positioning assembly further includes an elastic member, which is sleeved on the outer circumference of the pull rod and located between the positioning column and the limiting groove.

[0013] In one embodiment, the diameter of the pull ring is larger than the diameter of the end of the limiting groove away from the positioning groove.

[0014] In one embodiment, the positioning assembly further includes a slide column and a slide groove arranged along the first direction, the slide groove is arranged on the inner wall of the connecting groove and one of the positioning columns, and the slide column is arranged on the inner wall of the connecting groove and the other of the positioning columns.

[0015] In one embodiment, the clamping mechanism further includes a driving member, which is detachably connected to the pull ring, and the driving member drives the positioning column to move in the connecting groove toward the positioning groove.

[0016] The utility model also provides a stator winding machine, comprising the clamping mechanism as described in any one of the above items.

[0017] In the technical solution of the utility model, the clamping mechanism includes a material seat and a positioning assembly, the positioning assembly includes a positioning column, a positioning groove with a circular cross-section is arranged on the material seat, for placing the stator, and the positioning column is moved along a first direction on the material seat so that the positioning column can abut against the outer periphery of the stator in the positioning groove, the first direction can be set along the radial direction of the positioning groove, and can also be set to be parallel to any diameter line of the positioning groove. Specifically, when the stator winding is completed and a new stator needs to be replaced, the positioning column is moved along the first direction in a direction away from the positioning groove, the stator is released, and the new stator is inserted. At this time, the positioning column is moved toward the direction of the positioning groove so that one end of the stator facing the positioning groove abuts against the stator, and the stator is clamped by the material seat and the positioning column, which can avoid the deviation of the stator position and affect the winding quality. In addition, an arc surface is arranged at one end of the positioning column facing the positioning groove, and the arc surface is tangent to the outer periphery of the stator. When the positioning column abuts against the stator, the arc surface fits with the outer periphery of the stator, thereby improving the stability of clamping and avoiding damage to the stator during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A structural schematic diagram of an embodiment of a clamping mechanism provided by the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the clamping mechanism provided by the utility model.

[0021] Description of Figure Numbers:

[0022] 100, material seat; 110, positioning slot; 120, connecting slot; 130, base; 140, receiving seat;

[0023] 200, positioning assembly; 210, positioning column; 220, pull ring; 230, pull rod; 240, elastic member; 250, slide groove;

[0024] 300, positioning seat; 310, limiting groove.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] In the field of motor manufacturing, the stator is one of the core components of the motor. The structural stability and winding accuracy are directly related to the performance and efficiency of the motor. The stator is mainly composed of an iron core and a winding embedded in the core slot. The winding generates a magnetic field through electric current and interacts with the rotor to realize the conversion of electrical energy and mechanical energy. In traditional stator winding methods, most of them use a pressing block to press the end face of the stator to fix the stator. Some stator end faces do not have clamping positions, which makes the stator lack effective positioning and fixing measures, affecting the winding. The winding is prone to loosening or position displacement during the embedding process, resulting in an increase in the winding gap.

[0030] The utility model provides a clamping mechanism and a stator winding machine.

[0031] See also Figure 1 and Figure 2 In one embodiment of the utility model, the clamping mechanism comprises:

[0032] The material seat 100 has a positioning groove 110 on the top, and the positioning groove 110 is used to place the stator; and

[0033] The positioning assembly 200 is disposed on the material seat 100 and includes a positioning column 210. One end of the positioning column 210 faces the positioning groove 110 and moves along a first direction on the material seat 100 to abut against the outer periphery of the stator or release the stator. One end of the positioning column 210 facing the positioning groove 110 is tangent to the outer periphery of the stator.

[0034] In the technical solution of the utility model, the clamping mechanism includes a material seat 100 and a positioning assembly 200, and the positioning assembly 200 includes a positioning column 210. A positioning groove 110 with a circular cross section is set on the material seat 100 for placing the stator. The positioning column 210 moves along a first direction on the material seat 100 so that the positioning column 210 can abut against the outer periphery of the stator in the positioning groove 110. The first direction can be set along the radial direction of the positioning groove 110, or can be set to any diameter line parallel to the positioning groove 110. Specifically, when the stator winding is completed and a new stator needs to be replaced, the positioning column 210 is moved along the first direction. The first direction is moved in a direction away from the positioning groove 110 to release the stator and put in a new stator. At this time, the positioning column 210 is moved in the direction of the positioning groove 110 so that the end of the stator facing the positioning groove 110 abuts against the stator. The stator is clamped by the material seat 100 and the positioning column 210, which can avoid the deviation of the stator position and affect the winding quality. In addition, the end of the positioning column 210 facing the positioning groove 110 is provided with an arc surface, which is tangent to the outer periphery of the stator. When the positioning column 210 abuts against the stator, the arc surface fits with the outer periphery of the stator, thereby improving the stability of the clamping and avoiding damage to the stator during the clamping process.

[0035] Among them, the material seat 100 includes a base 130 at the bottom and a receiving seat 140 located on the top of the base 130. The base 130 and the receiving seat 140 are fixedly connected and jointly form a positioning groove 110. The area of ​​the base 130 is larger than that of the receiving seat 140, which facilitates the installation of the base 130 on the winding machine. The cross-section of the base 130 can be circular, square or other irregular shapes, and there is no restriction on the shape.

[0036] In the embodiment of the present invention, the material holder 100 is provided with a communication groove 120 along the first direction, the communication groove 120 is communicated with the positioning groove 110 , and the positioning post 210 is slidably disposed in the communication groove 120 .

[0037] Please refer to Figure 1 and Figure 2 The receiving seat 140 is provided with a connecting groove 120, one end of which leads to the positioning groove 110 and is connected to the positioning groove 110, and the positioning post 210 slides in the connecting groove 120 to realize the release and clamping of the stator, wherein the connecting groove 120 and the positioning post 210 can be set as a group, or two or more numbers can be set. When the connecting groove 120 and the stator are set as one, the connecting groove 120 can be set along the radial direction of the positioning groove 110, or the connecting groove 120 can be set to have one end leading to the positioning groove 110, that is, the connecting groove 120 is parallel to one of the diameter lines of the positioning groove 110. If multiple connecting grooves 120 are set, the two connecting grooves 120 can be set in parallel, and the two positioning posts 210 move toward the positioning groove 110 in the connecting groove 120 to abut the stator, and the two positioning posts 210 apply force in the same direction to the stator to cooperate with the material seat 100 to clamp the stator.

[0038] In the embodiment of the present invention, the positioning assembly 200 further includes a pull ring 220 and a pull rod 230 . The pull rod 230 is connected to one end of the positioning column 210 away from the positioning groove 110 , and the pull ring 220 is connected to one side of the pull rod 230 away from the positioning column 210 .

[0039] Please refer to Figure 2 The pull rod 230 is used to connect the pull ring 220 and the positioning column 210. The central axes of the pull ring 220, the pull rod 230 and the positioning column 210 are in a straight line, so that when the pull ring 220 is pulled outward outside the connecting groove 120, the positioning column 210 is driven to move outward to release the stator. After the new stator is placed, the positioning column 210 moves inward to re-clamp the stator.

[0040] In the embodiment of the utility model, the clamping mechanism further includes a positioning seat 300, which is disposed at one end of the communication groove 120 away from the positioning groove 110, and the positioning seat 300 is provided with a limiting groove 310 communicating with the communication groove 120;

[0041] The diameter of one end of the limiting groove 310 away from the communicating groove 120 is larger than the pull rod 230 and smaller than the positioning column 210 .

[0042] Please refer to Figure 2 The positioning seat 300 is arranged on the material seat 100, and the limiting groove 310 is connected with the connecting groove 120, the pull ring 220 is outside the limiting groove 310, and the pull rod 230 slides in the limiting groove 310 and the connecting groove 120. Since the end of the limiting groove 310 away from the positioning groove 110 is smaller than the positioning column 210, when the positioning column 210 is pulled outward by the pull ring 220, the positioning column 210 is limited by the limiting groove 310, which can avoid excessive pulling out and prevent the positioning column 210 from being separated from the connecting groove 120.

[0043] In the embodiment of the utility model, the pull rod 230 is detachably connected to the pull ring 220. Specifically, the pull rod 230 is connected to the pull ring 220 by screws, so as to replace the positioning column 210. Since different stators have different outer circumference sizes, the positioning column 210 with different arc surfaces can be replaced to better position the stator. In addition, the detachable setting of the pull rod 230 and the pull ring 220 facilitates the assembly of the whole machine.

[0044] In the embodiment of the present invention, the positioning assembly 200 further includes an elastic member 240 . The elastic member 240 is sleeved on the outer periphery of the pull rod 230 and is located between the positioning column 210 and the limiting groove 310 .

[0045] Please refer to Figure 2 The elastic member 240 is a spring, and the spring sleeve is set on the outer periphery of the pull rod 230, and the two ends are respectively in contact with the positioning seat 300 and the positioning column 210. When the stator winding in the positioning groove 110 is completed and a new stator needs to be replaced, the pull ring 220 is pulled, and the positioning column 210 moves outward. At this time, the positioning column 210 releases the stator, and the elastic member 240 is compressed between the positioning column 210 and the limiting groove 310. At this time, the stator is taken out and a new stator is put in, and the pull ring 220 is released. Under the elastic force of the elastic member 240, the positioning column 210 is driven to move inward to clamp the stator, and automatic rebound is achieved through the elastic member 240; and when the positioning column 210 moves inward and abuts against the stator, a certain collision will occur. The elastic member 240 can provide a certain buffer to avoid hard collision with the stator and damage to the stator.

[0046] In an embodiment of the utility model, the diameter of the pull ring 220 is larger than the diameter of the end of the limiting groove 310 away from the positioning groove 110. Under the rebound of the elastic member 240, when the pull ring 220 moves toward the positioning groove 110, it can be limited by the limiting groove 310 to prevent the pull ring 220 from entering the limiting groove 310, thereby reducing the clamping effect on the stator.

[0047] In an embodiment of the utility model, the positioning assembly 200 further includes a slide column and a slide groove 250 arranged along a first direction, the slide groove 250 is arranged on the inner wall of the connecting groove 120 and one of the positioning columns 210, and the slide column is arranged on the inner wall of the connecting groove 120 and the other of the positioning columns 210.

[0048] See also Figure 2 In order to ensure the moving direction of the positioning column 210 and prevent it from rotating in the connecting groove 120 so that the end of the positioning column 210 facing the positioning groove 110 cannot be tangentially fitted with the stator, a sliding column and a sliding groove 250 are provided to limit the moving direction of the positioning column 210. Specifically, the sliding groove 250 is arranged along a straight line and is parallel to the axis of the connecting groove 120 or the positioning column 210. The sliding groove 250 can be arranged on the inner wall of the connecting groove 120 or the positioning column 210. Accordingly, the sliding column is arranged on the positioning column 210 or protrudes from the inner wall of the connecting groove 120. The positioning column 210 slides in the connecting groove 120. The sliding column slides in the sliding groove 250 to ensure the moving direction of the positioning column 210. In this embodiment, the sliding column is arranged on the inner wall of the connecting groove 120 and extends toward the axis of the connecting groove 120. The sliding groove 250 is arranged on the positioning column 210.

[0049] In an embodiment of the utility model, the clamping mechanism also includes a driving member, which is detachably connected to the pull ring 220. The driving member drives the positioning column 210 to move in the connecting groove 120 toward the positioning groove 110. The driving member can adopt a linear driving member such as a cylinder, a hydraulic cylinder or an electric telescopic rod, or other structures for realizing driven movement, such as a screw nut pair, etc. There is no restriction on the specific structure of the driving member. The driving member is drivingly connected to the pull ring 220, drives the pull ring 220 to move in a direction away from the positioning groove 110, drives the positioning column 210 away from the positioning groove 110 to release the stator. After the new stator is placed in the positioning groove 110, the driving member releases the pull ring 220, and under the drive of the elastic member 240, the positioning column 210 moves toward the positioning groove 110 to clamp the stator. In addition, the driving member can also drive the pull ring 220 to move toward the positioning groove 110 to drive the positioning column 210 to clamp the stator.

[0050] The utility model also proposes a stator winding machine, which includes a clamping mechanism. The specific structure of the clamping mechanism refers to the above embodiment. Since the stator winding machine adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A clamping mechanism, characterized in that: include: The material seat has a positioning groove on the top, and the positioning groove is used to place the stator; as well as A positioning assembly is arranged on the material seat, and the positioning assembly includes a positioning column, one end of which faces the positioning groove and moves along a first direction on the material seat to abut against the outer periphery of the stator or release the stator, and one end of the positioning column facing the positioning groove is tangent to the outer periphery of the stator.

2. The clamping mechanism according to claim 1, characterized in that: The material seat is provided with a communication groove along the first direction, the communication groove is communicated with the positioning groove, and the positioning column is slidably disposed in the communication groove.

3. The clamping mechanism according to claim 2, characterized in that: The positioning assembly further comprises a pull ring and a pull rod, wherein the pull rod is connected to one end of the positioning column away from the positioning groove, and the pull ring is connected to one side of the pull rod away from the positioning column.

4. The clamping mechanism according to claim 3, characterized in that: The clamping mechanism further comprises a positioning seat, the positioning seat is arranged at one end of the communicating groove away from the positioning groove, and the positioning seat is provided with a limiting groove communicating with the communicating groove; The diameter of one end of the limiting groove away from the communicating groove is larger than that of the pull rod and smaller than that of the positioning column.

5. The clamping mechanism according to claim 4, characterized in that: The pull rod is detachably connected to the pull ring.

6. The clamping mechanism according to claim 5, characterized in that: The positioning assembly also includes an elastic member, which is sleeved on the outer periphery of the pull rod and located between the positioning column and the limiting groove.

7. The clamping mechanism according to claim 6, characterized in that: The diameter of the pull ring is larger than the diameter of the end of the limiting groove away from the positioning groove.

8. The clamping mechanism according to claim 3, characterized in that: The positioning assembly further includes a slide post and a slide groove arranged along the first direction, the slide groove is arranged on the inner wall of the connecting groove and one of the positioning posts, and the slide post is arranged on the inner wall of the connecting groove and the other of the positioning posts.

9. The clamping mechanism according to any one of claims 3 to 8, characterized in that: The clamping mechanism further comprises a driving member, which is detachably connected to the pull ring and drives the positioning column to move in the connecting groove toward the positioning groove.

10. A stator winding machine, characterized in that: Comprising the clamping mechanism as claimed in any one of claims 1 to 9.

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