Traction motor stator connecting line joint positioning tool

Abstract

The utility model discloses a traction motor stator connecting line joint positioning tool which comprises a positioning plate, the positioning plate is provided with a supporting piece, and the extending direction of the supporting piece is perpendicular to the plane where the positioning plate is located, so that the lower end face of the supporting piece is attached to the end face of a traction motor base. The positioning plate is parallel to the end face of the traction motor base; a plurality of notches are formed in the positioning plate, and the notches extend from the edge of the positioning plate to the interior of the positioning plate; a fastener detachably connected with the positioning plate is arranged on the positioning plate, the extending direction of the fastener is the same as that of the supporting piece, one end of the fastener is in threaded connection with the end face of the traction motor base, and the other end of the fastener penetrates through the positioning plate. According to the utility model, the requirements of three-dimensional space dimensions, including axial dimensions, radial dimensions and relative dimensions between the joints, of the connection line joints are met simultaneously, so that the connection line joints are positioned quickly and accurately.

Description

TECHNICAL FIELD

[0001] The utility model relates to a traction motor stator connection joint positioning tool belongs to traction motor stator winding connection technical field. BACKGROUND

[0002] For the traction motor with the lead wire outlet hole on the end cover, in the stator manufacturing process, when the connection joint space position deviates from the middle position of the outlet hole, the distance between the lead-out wire and the inner wall of the outlet hole is less than the electrical clearance distance, thereby leading to the insulation breakdown of the lead-out wire, and the lead-out wire has no gap with the outlet hole, and the insulation is damaged due to friction during the adjustment of the lead-out wire, thereby affecting the product quality, and the lead-out wire cannot be installed when the connection joint interferes with the outlet hole wall.

[0003] The positioning method of the existing stator connection joint mainly is manual positioning by the operator (the joint is adjusted to the approximate position during the connection welding, and the position of the connection joint is slowly and repeatedly adjusted when the connection is bound and fixed), which needs repeated measurement and adjustment, the size deviation of the joint position is large, and the joint is prone to tilt during the adjustment process. The space position error of the connection joint is large, the processability is poor, the operation efficiency is low, and the installation quality of the lead-out wire is affected. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above technical problems, and provides a traction motor stator connection joint positioning tool which can accurately position the connection joint and improve the connection welding operation efficiency.

[0005] In order to realize the above purpose, the technical scheme adopted by the utility model is:

[0006] A traction motor stator connection joint positioning tool, comprising a positioning plate, a support piece is arranged on the positioning plate, the extension direction of the support piece is perpendicular to the plane where the positioning plate is located, so that the lower end surface of the support piece is attached to the end surface of the traction motor base, and the positioning plate is parallel to the end surface of the traction motor base; a plurality of notches are formed in the positioning plate, the notches extend from the edge of the positioning plate to the inside of the positioning plate; a fastener which is detachably connected with the positioning plate is arranged on the positioning plate, the extension direction of the fastener is the same as that of the support piece, one end of the fastener is threadedly connected with the end surface of the traction motor base, and the other end penetrates through the positioning plate.

[0007] Therefore, the tool can be quickly fixed to the end face of the traction motor through the fastener, the bottom surface of the support is in contact with the end face of the traction motor, the height of the support is the height in the axial direction of the required wire connecting joint, the gaps on the positioning plate are used for placing the wire connecting joint, and the spacing between the gaps is the circumferential spacing of the required wire connecting joint;The wire connecting joint is directly placed in the three gaps on the end face of the tool during wire welding, the wire connecting joint is parallel to the end face of the tool, and the wire connecting joint does not exceed the end face gap, the upper surface of the wire connecting joint is adjacent to the upper surface of the end face gap, and after the stator wire is bound, the size requirement of the wire connecting joint can be met, and then the tool is removed.

[0008] According to the embodiments of the utility model, the utility model can be further optimized, and the following is the technical scheme formed after optimization:

[0009] In order to facilitate the determination of the spacing between adjacent wire connecting joints, in a specific embodiment, the arrangement mode of the plurality of gaps on the positioning plate is the same as the required arrangement mode of the wire connecting joint;The spacing C between the two adjacent gaps.

[0010] In a specific embodiment, the spacing C is the required circumferential distance between the two adjacent wire connecting joints.

[0011] In order to facilitate the determination of the height position of the wire connecting joint, in a specific embodiment, the opening end of the gap faces the wire connecting joint, and the length B of the gap extending from the edge of the positioning plate to the inside of the positioning plate is the radial height dimension of the wire connecting joint.

[0012] In a specific embodiment, the height A of the support is the axial distance between the wire connecting joint and the end face of the traction motor base.

[0013] In a specific embodiment, the plurality of gaps are uniformly distributed in the middle of the positioning plate, and the support is arranged at both ends of the positioning plate.

[0014] In order to facilitate the positioning, disassembly and fixation of the tool, in a specific embodiment, the fastener is a bolt, and the positioning plate is provided with an assembly hole for the fastener to pass through.

[0015] In a specific embodiment, the positioning plate is arc-shaped.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1) The traction motor stator wire connecting joint positioning tool can meet the requirements of three-dimensional space size of the wire connecting joint, including axial size, radial size and relative size between joints, so that the positioning of the wire connecting joint is rapid and accurate.

[0018] 2) The traction motor stator connecting line joint positioning tool of the utility model has simple structure, convenient operation of installation and dismounting, and can be repeatedly used.

[0019] 3) The traction motor stator connecting line joint positioning tool improves the connecting line joint positioning operation efficiency and eliminates the quality hidden danger of the traction motor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the overall structure schematic diagram of the traction motor stator connecting line joint positioning tool of the utility model;

[0021] Fig. 2 It is the front view of the positioning plate and the supporting piece of the traction motor stator connecting line joint positioning tool of the utility model;

[0022] Fig. 3 It is the plan view of the traction motor stator connecting line joint positioning tool of the utility model.

[0023] In the drawings

[0024] 1-positioning plate; 11-assembly hole; 2-supporting piece; 3-notch; 4-fastener. DETAILED DESCRIPTION

[0025] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. For the sake of description, if the words "up", "down", "left", "right" appear in the following text, they only mean consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure.

[0026] As Figs. 1-3 shown, the traction motor stator connecting line joint positioning tool of the embodiment comprises a positioning plate 1, which is arc-shaped in the embodiment. If it is suitable for other types of traction motors, the shape of the positioning plate 1 can be rectangular or other special-shaped structures suitable for the shape of the traction motor base end face. The supporting piece 2 is arranged on the positioning plate 1, the extension direction of the supporting piece 2 is perpendicular to the plane where the positioning plate 1 is located, so that the lower end face of the supporting piece 2 is attached to the traction motor base end face, and the positioning plate 1 is parallel to the traction motor base end face. Three notches 3 are formed in the positioning plate 1, the notches 3 extend from the edge of the positioning plate 1 to the inside of the positioning plate 1, and the opening end of the notch 3 faces the connecting line joint. The fastener 4 is arranged on the positioning plate 1 and can be detachably connected with the positioning plate 1, the extension direction of the fastener 4 is the same as that of the supporting piece 2, one end of the fastener 4 is threadedly connected with the traction motor base end face, and the other end penetrates through the positioning plate 1.

[0027] In the embodiment, the arrangement of the required on-line joints is linear, so the three said notches 3 are arranged in a straight line on the positioning plate 1, and the distance C between two adjacent notches 3 is the required circumferential distance between two adjacent on-line joints. The length B of the notch 3 extending from the edge of the positioning plate 1 to the inside of the positioning plate 1 is the radial height dimension of the on-line joint, and the height A of the support 2 is the axial distance between the on-line joint and the end face of the traction motor. The axial dimension of the on-line joint and the traction motor end face is ensured by the support 2 of the tooling, and the axial dimension and the circumferential dimension of the on-line joint are ensured by the size of the notch 3 of the positioning plate 1.

[0028] The several said notches 3 are evenly distributed in the middle of the positioning plate 1, and two said supports 2 are provided in the embodiment, which are arranged at both ends of the positioning plate 1. The fastener 4 is a bolt, and the assembly hole 11 for the fastener 4 to pass through is provided on the positioning plate 1, which is a through hole.

[0029] The end faces of the two supports 2 of the tooling completely fit the end face of the motor, the assembly holes 11 at both ends of the tooling positioning plate 1 are opposite to the specified motor end face holes, the fastener 4 is threadedly connected with the tooling end face hole, and is tightened with the motor end face hole. Only correct installation of the tooling can ensure the position dimension of the on-line joint.

[0030] After the tooling is correctly installed, the on-line joint is directly placed in the three notches 3 of the tooling end face during on-line welding, the on-line joint is parallel to the end face of the tooling positioning plate 1, and does not exceed the notch of the positioning plate 1. The upper surface of the on-line joint is close to the upper surface of the positioning plate 1. After the stator on-line is bound, the size requirement of the on-line joint can be met, and then the tooling is removed, thereby avoiding repeated measurement and adjustment of the space size of the on-line joint, improving the work efficiency of the operator, and eliminating the on-line joint interference problem and the insulation quality hidden danger at the on-line joint.

[0031] The traction motor stator on-line joint positioning tooling of the embodiment can be made of aluminum alloy, iron alloy or polytetrafluoroethylene, etc., and is suitable for all traction motors with lead-out holes on the end cover, and can also be popularized to traction motors with positioning holes and hot sleeve structure, and is suitable for on-line joint positioning of horizontal and vertical traction motor stators. The distance C between the notches, the width B of the notches and the height A of the support in the traction motor stator on-line joint positioning tooling of the embodiment can be changed according to the height of the on-line joint or the size of the traction motor, and is suitable for various size requirements, so as to realize accurate positioning of the on-line joint.

[0032] The above-mentioned embodiments should be understood as being only for more clearly describing the present application, and should not be used to limit the scope of the present application, and after reading the present application, various equivalent modifications of the present application by those skilled in the art all fall within the scope defined by the claims attached herein.

Claims

1. A traction motor stator wire harness connector positioning fixture, characterized by: The utility model relates to a traction motor machine base positioning device, including positioning plate (1), be equipped with support (2) on positioning plate (1), the extension direction of support (2) is perpendicular to the plane where positioning plate (1) is located, thereby with the lower end surface of support (2) is pasted traction motor machine base end surface, and positioning plate (1) is parallel with traction motor machine base end surface, a plurality of notches (3) are opened on positioning plate (1), and the notch (3) extends from the edge of positioning plate (1) to the inside of positioning plate (1), and the fastener (4) that positioning plate (1) is equipped with with the detachable connection of positioning plate (1), the extension direction of fastener (4) is same with the extension direction of support (2), and one end of fastener (4) is screwed with traction motor machine base end surface, and the other end passes through positioning plate (1).

2. The traction motor stator wire joint positioning fixture of claim 1, wherein: The arrangement of the plurality of notches (3) on the positioning plate (1) is the same as the required arrangement of the wire connection joint; the two adjacent notches (3) have a spacing C.

3. The traction motor stator wire joint positioning fixture of claim 2, wherein: The spacing C is the required circumferential distance between the two adjacent wire connection joints.

4. The traction motor stator wire joint positioning fixture of claim 1, wherein: The opening end of the notch (3) faces the wire connection joint, and the length B of the notch (3) extending from the edge of the positioning plate (1) to the inside of the positioning plate (1) is the radial height dimension of the wire connection joint.

5. The traction motor stator wire splice positioning fixture of claim 1, wherein: The height A of the support (2) is the axial distance between the wire connection joint and the traction motor machine base end surface.

6. The traction motor stator wire splice positioning fixture of claim 1, wherein: The plurality of notches (3) are evenly distributed in the middle of the positioning plate (1), and the support (2) is arranged at both ends of the positioning plate (1).

7. The traction motor stator wire splice positioning fixture of claim 1, wherein: The fastener (4) is a bolt, and the positioning plate (1) is provided with an assembly hole (11) for the fastener (4) to pass through.

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