Flat wire stator welding self-locking chuck

Abstract

The utility model discloses a flat wire stator welding self-locking chuck which comprises a base plate, a cover plate and wire forks, the top structure of each wire fork is of a conical structure, when the wire forks are pushed inwards, the space between every two adjacent wire forks is reduced, a flat wire head is naturally clamped, and the wire forks are self-locked by means of elastic force between the wire forks and the flat wire head; the clamping gap is changed by utilizing the linear motion of the cone so as to position the flat enameled wire; the flat wire is locked tidily by the self-locking clamp, only one pair of conductive clamps is needed during welding, accurate positioning and welding can be achieved during welding, welding can be well achieved, the percent of pass is increased, the service life of a welding tool is prolonged, and no welding waste is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of motor stator technology, and specifically relates to a self-locking clamp for welding flat wire stators. Background Technology

[0002] Previously, when welding flat enameled wires to the stator of new energy motors, two pairs of perpendicular clamps were used to hold the wires together before argon arc welding. Due to the small space between the wire ends, the flat wires were not neatly twisted after twisting. When the two pairs of perpendicular clamps were inserted into the flat wires, there were problems such as crushing or misaligning the wires. In some cases, the clamps were even damaged, resulting in a 3% scrap rate for finished products, with one pair of clamps worn out every day. This was too costly. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a self-locking chuck for welding flat wire stators, which can solve the problems existing in the prior art.

[0004] To solve the above problems, the technical solution provided by this utility model is as follows:

[0005] This utility model embodiment provides a flat wire stator welding self-locking chuck, including a base (3), a cover plate (1) and a wire fork (2). The base (3) and the cover plate (1) are connected by screws. The wire fork (2) is installed between the base (3) and the cover plate (1). The protrusion structure (2-1) of the wire fork ensures that the wire fork (2) will not fall out when it is loose.

[0006] The fork (2) includes a bottom structure (2-2), a vertical structure (2-3) connected to the bottom structure (2-2), and a top structure (2-4) connected to the vertical structure (2-3). The bottom structure (2-2) and the top structure (2-4) are located on both sides of the vertical structure (2-3). The top structure (2-4) is a conical structure. When the fork (2) is pushed inward, the space between two adjacent forks (2) is reduced, naturally clamping the flat wire end. Relying on the elastic force between the fork and the flat wire end, the fork self-locks.

[0007] In an optional embodiment of this utility model, the cover plate (1) is provided with a matching groove (1-1) at the position of the protrusion structure (2-1) of the wire fork.

[0008] In one optional embodiment of this utility model, the cover plate (1) has an annular structure.

[0009] Beneficial Effects: This utility model provides a self-locking clamp for welding flat wire stators, including a base, a cover plate, and wire forks. The top structure of the wire forks is conical. When the wire forks are pushed inward, the space between two adjacent wire forks decreases, naturally clamping the flat wire end. The wire forks self-lock due to the elastic force between them and the flat wire end. The conical linear motion changes the clamping gap, which is used to position the flat enameled wire. The flat wire is neatly locked by the self-locking clamp. Only one pair of conductive clamps is needed during welding, allowing for accurate positioning and welding, resulting in better welding, higher pass rate, longer welding fixture life, and zero welding defects. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments 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 of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a flat wire stator welding self-locking chuck provided in an embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of a flat wire stator welding self-locking chuck in the released state, provided as an embodiment of this application.

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of a flat wire stator welding self-locking chuck in its tightened state, provided as an embodiment of this application.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of a flat wire stator welding self-locking chuck provided in an embodiment of this application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The terms "upper," "lower," "front," "rear," "left," and "right," etc., used when describing the installation position or direction of the structure or components in this embodiment are based on the orientation shown in the accompanying drawings. They are merely for convenience of description and are used to distinguish the relative positions of various components or directions, and do not represent the orientation of the self-locking chuck in this embodiment during use.

[0016] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment of the utility model provides a self-locking chuck for welding flat wire stators, including a base plate 3, a cover plate 1, and a wire fork 2. The base plate 3 and the cover plate 1 are connected by screws. The wire fork 2 is installed between the base plate 3 and the cover plate 1. The protrusion structure 2-1 of the wire fork ensures that the wire fork 2 will not fall out when loose. The wire fork 2 includes a bottom structure 2-2, a vertical part structure 2-3 connected to the bottom structure 2-2, and a top structure 2-4 connected to the vertical part structure 2-3. The bottom structure 2-2 and the top structure 2-4 are located on both sides of the vertical part structure 2-3. The cover plate 1 has a matching groove 1-1 at the position facing the protrusion structure 2-1 of the wire fork. The cover plate 1 has an annular structure.

[0017] Before use, push the wire fork 2 outwards and insert it into the stator welding point end, then push the wire fork 2 inwards. In this embodiment, the top structure 2-4 of the wire fork 2 is a conical structure. When pushing the wire fork 2 inwards, the space between two adjacent wire forks 2 decreases, naturally clamping the flat wire end. Relying on the elastic force between the wire fork and the flat wire end, the wire fork self-locks. The conical linear motion changes the clamping gap, which is used to position the flat enameled wire. The flat wire is neatly locked by the self-locking clamp. Only one pair of conductive clamps is needed during welding, which can accurately position the welding during welding, resulting in good welding, improved pass rate, increased welding fixture life, and guaranteed no welding defects.

[0018] Although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A self-locking chuck for welding flat wire stators, characterized in that, Includes a chassis (3), a cover plate (1) and a fork (2), the chassis (3) and the cover plate (1) are connected by screws, the fork (2) is installed between the chassis (3) and the cover plate (1), and the protrusion structure (2-1) of the fork ensures that the fork (2) will not fall out when loose; The fork (2) includes a bottom structure (2-2), a vertical structure (2-3) connected to the bottom structure (2-2), and a top structure (2-4) connected to the vertical structure (2-3). The bottom structure (2-2) and the top structure (2-4) are located on both sides of the vertical structure (2-3). The top structure (2-4) is a conical structure. When the fork (2) is pushed inward, the space between two adjacent forks (2) is reduced, naturally clamping the flat wire end. Relying on the elastic force between the fork and the flat wire end, the fork self-locks.

2. The self-locking chuck for welding flat wire stators according to claim 1, characterized in that, The cover plate (1) is provided with a matching groove (1-1) at the position of the protrusion structure (2-1) of the fork.

3. The flat wire stator welding self-locking chuck according to claim 1, characterized in that, The cover plate (1) has a ring structure.

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