CN219094135U

CN219094135U - Stator core welding fixture

Info

Publication number: CN219094135U
Application number: CN202223448106.7U
Authority: CN
Inventors: 姚红; 何圣洪
Original assignee: Changzhou Honghui Power Technology Co ltd
Current assignee: Changzhou Honghui Power Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-30
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a stator core welding fixture, which comprises a mounting seat, a tensioning piece, a screw rod and a movable assembly, wherein the mounting seat is arranged on the mounting seat; the stator iron core is movably connected with the mounting groove, the screw is movably mounted at the upper end of the mounting seat, the screw is movably connected with the mounting seat through threads, the push block is fixedly mounted at the lower end of the screw and movably connected with the mounting groove, a plurality of movable components are mounted in the mounting groove and act on the movable components to move, and the movable components are matched with the connecting rod.

Description

Stator core welding fixture

Technical Field

The utility model relates to the technical field of stator core processing, in particular to a stator core welding fixture.

Background

With the rapid development of new energy automobiles, the quality of an automobile heart motor is particularly important, an iron core is an important component of the motor, and the quality and the production efficiency of the iron core occupy important positions in the production of the iron core; the precision of stator core directly influences the product performance of whole motor, so guarantee stator core's production precision is very important, among the prior art, and the stator piece that looses is superimposed on being columnar frock, and frock can be to stator piece radial positioning, makes things convenient for the welding of piece that looses.

For example, the application number is: 201721072156.6, which comprises an upper pressing tool and a lower positioning tool which are arranged up and down oppositely, wherein the upper pressing tool comprises a nut, an upper base plate of a machine tool, a bonding plate, a welded upper base plate and an expanding core; the lower positioning tool comprises an expansion sleeve, a welding lower base plate and an adapter plate, wherein the welding lower base plate is used for placing a stator core to be welded. The device can be used for positioning through the expansion core through the matching design of the expansion core and the expansion sleeve, so that the problem of fit clearance exists after the expansion sleeve is prevented from being expanded, and the welding efficiency can be improved.

Aiming at the related technology, the inventor considers that the expansion sleeve is pushed to expand through the extrusion of the expansion core, so that the stator core is conveniently positioned and fixed, but the friction between the expansion core and the inner wall of the expansion sleeve is caused by the transverse acting force when the expansion sleeve is pressed, the expansion core is difficult to be extruded to rise upwards, and the adjustment effect of the expansion sleeve is poor, so that the stator core welding fixture is provided.

Disclosure of Invention

In order to achieve the above purpose, the utility model provides a stator core welding fixture, which comprises a mounting seat, a tension piece, a screw and a movable assembly; the installation seat is characterized in that a plurality of tensioning pieces are symmetrically arranged on the outer wall of the installation seat, a connecting rod is fixedly arranged on the tensioning pieces, an installation groove is formed in the installation seat, the connecting rod is movably connected with the installation groove, a screw is movably arranged at the upper end of the installation seat, the screw is movably connected with the installation seat through threads, a pushing block is fixedly arranged at the lower end of the screw, the pushing block is movably connected with the installation groove, a plurality of movable assemblies are arranged in the installation groove, the pushing block acts on the movable assemblies to move, and the movable assemblies are matched with the connecting rod.

Preferably, the movable assembly comprises a movable block and a spring, the movable block is movably mounted in the mounting groove, the movable block is movably connected with the pushing block, and two ends of the spring are respectively fixedly connected with the movable block and the connecting rod.

Preferably, the pushing block is in a frustum shape.

Preferably, the connecting rod is symmetrically provided with limiting teeth, and the limiting teeth are movably connected with the mounting groove.

Preferably, the tensioning piece is symmetrically provided with sliding rods, a plurality of sliding grooves are symmetrically arranged in the mounting seat, and the sliding rods are movably connected with the sliding grooves.

Preferably, the slide bar is fixedly provided with a limiting block, and the limiting block is movably connected with the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the screw rod is rotated to drive the push block to move, and the push block is matched with the movable assembly to drive the connecting rod to move outwards, so that the plurality of tensioning pieces are driven to move outwards synchronously, the stator iron core is positioned and fixed, the adjusting effect of the tensioning pieces during stress is ensured under the matching of the connecting rod and the movable assembly, and the tensioning pieces are conveniently and automatically adjusted to a proper size.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1 according to the present utility model;

FIG. 3 is a schematic diagram of the overall structure of the present utility model;

fig. 4 is a schematic diagram of a push block structure according to the present utility model.

In the figure: 1. a mounting base; 11. a mounting groove; 12. a chute; 2. a tension member; 21. a connecting rod; 311. limit teeth; 22. a slide bar; 221. a limiting block; 3. a screw; 31. a pushing block; 4. a movable assembly; 41. a movable block; 42. and (3) a spring.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

Embodiment one:

referring to fig. 1-4, the utility model provides a stator core welding fixture, which comprises a mounting seat 1, a tensioning piece 2, a screw 3 and a movable assembly 4; the utility model discloses a high-speed hydraulic lifting device for the automobile is characterized in that a plurality of tensioning pieces 2 are symmetrically installed on the outer wall of an installation seat 1, a connecting rod 21 is fixedly installed on the tensioning pieces 2, an installation groove 11 is formed in the installation seat 1, the connecting rod 21 is movably connected with the installation groove 11, a screw rod 3 is movably installed at the upper end of the installation seat 1, the screw rod 3 is movably connected with the installation seat 1 through threads, a pushing block 31 is fixedly installed at the lower end of the screw rod 3, the pushing block 31 is movably connected with the installation groove 11, a plurality of movable assemblies 4 are installed in the installation groove 11, the pushing block 31 acts on the movable assemblies 4 to move, and the movable assemblies 4 are matched with the connecting rod 21.

Referring to fig. 1-2, the movable assembly 4 includes a movable block 41 and a spring 42, the movable block 41 is movably mounted in the mounting groove 11, the movable block 41 is movably connected with the push block 31, two ends of the spring 42 are respectively fixedly connected with the movable block 41 and the connecting rod 21, and the movement of the tensioning member 2 is conveniently adjusted to fix the stator core through the design.

Referring to fig. 1, 2 and 4, the pushing block 31 is in a frustum shape, so that the pushing block 31 pushes the movable block 41 to move in multiple directions when moving downward.

Referring to fig. 1-2, the connecting rod 21 is symmetrically provided with limiting teeth 311, the limiting teeth 311 are movably connected with the mounting groove 11, and the connecting rod 21 is limited by the design, so as to prevent the connecting rod 21 from falling off from the mounting groove 11.

Referring to fig. 1 and 3, the tensioning member 2 is symmetrically provided with sliding rods 22, the installation seat 1 is internally symmetrically provided with a plurality of sliding grooves 12, the sliding rods 22 are movably connected with the sliding grooves 12, and the tensioning member 2 is limited by the design to prevent the tensioning member 2 from rotating and shifting.

Referring to fig. 1, a limiting block 221 is fixedly mounted on the sliding rod 22, the limiting block 221 is movably connected with the sliding slot 12, and the sliding rod 22 is limited by this design to prevent the sliding rod 22 from falling off from the sliding slot 12.

The specific operation mode of the first embodiment of the utility model is as follows:

the stator iron core is sleeved outside the mounting seat 1 and the tensioning piece 2, the screw rod 3 is rotated, the screw rod 3 rotates to drive the push block 31 to move downwards, the push block 31 moves downwards to extrude the movable block 41 to move outwards, the movable block 41 moves to drive the spring 42 to move outwards, the spring 42 pushes the connecting rod 21 and the tensioning piece 2 to move outwards, the tensioning piece 2 contacts with the inner wall of the stator iron core, the movable block 41 moves to extrude the spring 42, an outward force is applied to the connecting rod 21 under the thrust of the spring 42, the tensioning piece 2 tightly props against the stator iron core, positioning fixation of the stator iron core is achieved, the problem of fit clearance between the tensioning piece 2 and the stator iron core is solved under the thrust of the spring 42, the welding efficiency is improved, when the tensioning piece 2 is subjected to external pressure, the tensioning piece 2 is automatically adjusted to a proper size under the connection of the elastic force of the spring 42, the structure is simple and reasonable, and the practicability is good.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. Stator core welding frock, its characterized in that: comprises a mounting seat (1), a tensioning piece (2), a screw (3) and a movable component (4);

the utility model discloses a tension device for a cable, including mount pad (1), connecting rod (21) and mounting groove (11) swing joint, screw rod (3) movable mounting are in mount pad (1) upper end, screw rod (3) pass through the screw thread with mount pad (1) swing joint, screw rod (3) lower extreme fixed mounting has ejector pad (31), ejector pad (31) with mounting groove (11) swing joint, install a plurality of in mounting groove (11) movable assembly (4), ejector pad (31) are used for movable assembly (4) are removed, movable assembly (4) with connecting rod (21) cooperation.

2. The stator core welding fixture of claim 1, wherein: the movable assembly (4) comprises a movable block (41) and a spring (42), the movable block (41) is movably mounted in the mounting groove (11), the movable block (41) is movably connected with the push block (31), and two ends of the spring (42) are respectively fixedly connected with the movable block (41) and the connecting rod (21).

3. The stator core welding fixture of claim 2, wherein: the pushing block (31) is in a frustum shape.

4. The stator core welding fixture of claim 1, wherein: limiting teeth (311) are symmetrically arranged on the connecting rod (21), and the limiting teeth (311) are movably connected with the mounting groove (11).

5. The stator core welding fixture of claim 1, wherein: the tensioning piece (2) is symmetrically provided with sliding rods (22), a plurality of sliding grooves (12) are symmetrically arranged in the mounting seat (1), and the sliding rods (22) are movably connected with the sliding grooves (12).

6. The stator core welding fixture of claim 5, wherein: the sliding rod (22) is fixedly provided with a limiting block (221), and the limiting block (221) is movably connected with the sliding groove (12).