Motor stator and motor casing assembling and positioning tool

Abstract

An assembling and positioning tool for a motor stator and a motor casing comprises a base, an annular stator lower positioning seat and an annular casing lower positioning seat which are coaxially arranged are arranged on the upper end face of the base, a vertically upward screw is arranged in the center of the base, a gland is sleeved on the upper portion of the screw, and an annular stator upper positioning seat is arranged on the lower end face of the gland. And a nut is arranged on the screw above the gland. The assembling coaxiality and the axial positioning precision of the motor stator and the motor shell can be improved, and the use performance of the motor is improved.

Description

Technical Field

[0001] The utility model relates to motor production equipment, in particular to a motor stator and motor casing assembly positioning tool. Background Art

[0002] The motor stator and motor housing are usually assembled by a shrink-fit process, that is, the pre-heated and expanded motor housing is sleeved on the outer cylindrical surface of the motor stator. After the motor housing cools and shrinks, the motor housing is tightly clamped on the motor stator.

[0003] The conventional motor stator and motor housing assembly positioning tool comprises a base with a V-shaped positioning hole on the top surface, and a motor stator positioning baffle and a motor housing positioning baffle are provided on one side of the base. When in use, firstly place the pre-heated motor housing outer cylindrical surface in the V-shaped positioning hole of the base, and place a section of the motor housing against the motor housing positioning baffle, then place the motor stator in the motor housing and against the motor stator positioning baffle, and after the motor housing is cooled and hooped on the motor positioning outer cylindrical surface, remove the hooped motor stator and motor housing.

[0004] This motor stator and motor casing assembly positioning tool has the following disadvantages: due to the uneven shape of the motor casing, the deformation of the motor casing after cooling is uneven, resulting in poor coaxiality and axial positioning of the ring-hooped motor stator and motor casing, which seriously affects the performance of the motor. Summary of the invention

[0005] The utility model is to solve the above technical problems and provides a motor stator and motor casing assembly positioning tool, which can improve the coaxiality and axial positioning accuracy of the motor stator and motor casing assembly and improve the performance of the motor.

[0006] The technical solution of the utility model is:

[0007] A motor stator and motor casing assembly positioning tool includes a base, and its special features are: a coaxially arranged annular stator lower positioning seat and an annular casing lower positioning seat are provided on the upper end face of the base, a vertically upward screw is provided in the center of the base, a pressure cover is mounted on the upper part of the screw, an annular stator upper positioning seat is provided on the lower end face of the pressure cover, and a nut is installed on the screw above the pressure cover.

[0008] Furthermore, a stator positioning pin corresponding to the wire embedding starting positioning groove on the motor stator is provided on the upper end surface of the base to position the motor stator in the circumferential direction.

[0009] Furthermore, a casing positioning pin corresponding to the casing positioning hole on the motor casing is provided on the upper end surface of the base to position the motor casing circumferentially.

[0010] Furthermore, the screw rod is a bolt, and the bolt passes through the base from bottom to top, thereby reducing the processing cost of the base.

[0011] Furthermore, a top screw extending in the axial direction is threadedly installed on the gland, and the top screw is screwed to push the motor housing, so that the gland is easy to disassemble.

[0012] Furthermore, there are two top screws, and the two top screws are radially symmetrically distributed. The two top screws are screwed simultaneously to move the gland axially upward, so that the gland can be smoothly removed from the motor housing.

[0013] The beneficial effects of the utility model are:

[0014] 1. Since the upper end surface of the base is provided with a coaxially arranged annular stator lower positioning seat and annular casing lower positioning seat, the motor stator is sleeved on the outer cylindrical surface of the annular stator lower positioning seat, and the motor casing is sleeved on the annular casing lower positioning seat, which greatly improves the coaxiality of the motor stator and the motor casing, and improves the performance of the motor.

[0015] 2. A vertically upward screw is provided at the center of the base, a gland is mounted on the upper part of the screw, an annular stator upper positioning seat is provided on the lower end surface of the gland, a nut is installed on the screw above the gland to tighten the nut, the motor stator is clamped and axially positioned by the annular stator upper positioning seat and the base, and the motor casing is clamped and axially positioned by the gland and the base, which greatly improves the axial positioning accuracy of the motor stator and the motor casing, and improves the performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 A top view of the middle base;

[0018] Figure 3 It is a usage state diagram of the utility model;

[0019] In the figure: 1-base, 2-annular stator lower positioning seat, 3-annular casing lower positioning seat, 4-stator positioning pin, 5-casing positioning pin, 6-bolt, 7-pressure cover, 8-annular stator upper positioning seat, 9-top screw, 10-nut. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 2As shown, a motor stator and motor casing assembly positioning tool comprises a base 1, on the upper end face of the base 1 is provided with a coaxially arranged annular stator lower positioning seat 2 and an annular casing lower positioning seat 3, on the upper end face of the base 1 is provided with a stator positioning pin 4 corresponding to the embedded wire starting positioning groove on the motor stator and a casing positioning pin 5 corresponding to the casing positioning hole on the motor casing, a bolt 6 is passed through the center of the base 1 from bottom to top, a pressure cover 7 is mounted on the upper part of the bolt 6, an annular stator upper positioning seat 8 is provided on the lower end face of the pressure cover 7, two radially symmetrically distributed top screws 9 extending in the axial direction are threadedly installed on the pressure cover 7, and a nut 10 is installed on the screw rod above the pressure cover 7.

[0021] like Figure 3 As shown, during operation, firstly, the bolt 6 is passed through the base 1 from bottom to top, the motor stator is sleeved on the outer cylindrical surface of the annular stator lower positioning seat 2, the motor stator is coaxially positioned, and the motor stator seat is placed on the upper end surface of the annular stator lower positioning seat 2; then the heated motor casing is sleeved on the outer cylindrical surface of the annular casing lower positioning seat 3, the motor casing is coaxially positioned, and the motor casing seat is placed on the upper end surface of the base 1; then the gland 7 is sleeved on the bolt 6, and the annular stator upper positioning seat 8 is embedded in the motor casing. The inner cylindrical surface of the motor casing can prevent the motor casing from shrinking and deforming due to cooling; then install the nut 10 on the bolt 6 and tighten it, the positioning seat 8 on the annular stator is pressed against the upper end surface of the motor stator to axially position the motor stator, and the pressure cover 7 is pressed against the upper end surface of the motor casing to axially position the motor casing; after the motor casing is cooled and hooped on the outer cylindrical surface of the motor stator, remove the nut 10, screw the top screw 9 to push the motor casing out of the motor casing, take out the motor stator and motor casing that are hooped together, and complete the operation.

[0022] The above are only specific embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor stator and motor housing assembly positioning tool, comprising a base, characterized in that: A coaxially arranged annular stator lower positioning seat and an annular casing lower positioning seat are provided on the upper end surface of the base, a vertically upward screw is provided in the center of the base, a pressure cover is mounted on the upper part of the screw, an annular stator upper positioning seat is provided on the lower end surface of the pressure cover, and a nut is installed on the screw above the pressure cover.

2. The motor stator and motor housing assembly and positioning tool according to claim 1, characterized in that: A stator positioning pin corresponding to the wire embedding starting positioning groove on the motor stator is arranged on the upper end surface of the base.

3. The motor stator and motor housing assembly and positioning tool according to claim 1, characterized in that: A casing positioning pin corresponding to the casing positioning hole on the motor casing is arranged on the upper end surface of the base.

4. The motor stator and motor housing assembly and positioning tool according to claim 1, characterized in that: The screw rod is a bolt, and the bolt passes through the base from bottom to top.

5. The motor stator and motor housing assembly and positioning tool according to claim 1, characterized in that: A top screw extending in the axial direction is threadedly installed on the gland.

6. The motor stator and motor housing assembly and positioning tool according to claim 5, characterized in that: There are two top screws, and the two top screws are radially symmetrically distributed.

Images