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Shrinkage fit and positioning tool for stator core and casing

A stator core and positioning tooling technology, which is applied in the mechanical field, can solve the problems that the relative position of the stator core and the casing cannot be guaranteed, the zero position of the position sensor is complicated to debug, and the level of automation cannot be satisfied, so as to improve the shrink fit Efficiency, the stability of the assembly process, and the effect of improving the coaxiality

Pending Publication Date: 2018-11-02
WENLING JIUZHOU ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The coaxiality between the stator core and the casing can be improved by using the above-mentioned tooling, but the circumferential relative position of the stator core and the casing cannot be guaranteed, resulting in the need for permanent magnet motor manufacturing. Complicated debugging of the zero position of the position sensor
In addition, the low efficiency of manual assembly gradually fails to meet the current level of automation

Method used

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  • Shrinkage fit and positioning tool for stator core and casing
  • Shrinkage fit and positioning tool for stator core and casing
  • Shrinkage fit and positioning tool for stator core and casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The shrink-fit positioning tool for the stator core and the casing includes an upper base 1, a lower base 2, a guide column, a support panel 4, a lifting drive source 5, a mounting seat 6, a positioning boss 61, and an inner support slider 7 , Telescopic guide rod 8, spring 10, positioning seat 11, limit structure and positioning structure.

[0038] Specifically, as figure 1 As shown, the number of columns 3 in this embodiment is two, and each column 3 has external threads at both ends, and the upper end of the column 3 passes through the fixing sleeve 22 on the upper base 1 and is fixed with the upper base 1 by a nut 24 , the lower end of the column 3 passes through the fixing sleeve 2 23 on the lower base 2 and is fixed with the lower base 2 by the nut 24, and the flange linear bearing 25 is fixed on the support panel 4, and the column 3 is respectively installed on the corresponding flange straight line On the bearing 25. The upper base 1 , the lower base 2 and the...

Embodiment 2

[0049] The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1, the difference is that in this embodiment, the position-limiting structure includes a plurality of screw holes fixed on the mounting base 6 and matched with the screw holes of the casing 31. limit pin.

Embodiment 3

[0051] The technical solution in this embodiment is basically the same as the technical solution in Embodiment 1 and Embodiment 2, the difference is that in this embodiment, the positioning structure includes a convex body with elasticity, and the center of the upper end of the positioning seat 11 has a positioning The protrusion 111 of the seat 11 has a circular receiving groove 112 on the outer periphery of the protrusion 111 , and the protrusion is fixed on the outer surface of the protrusion 111 . When the stator core 32 is placed in the accommodating groove 112 , the stator core 32 is rotated in a circumferential direction, so that the convex body elastically deforms and snaps into the stator notch 321 , thereby realizing the positioning of the stator core 32 .

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Abstract

The invention provides a shrinkage fit and positioning tool for a stator core and a casing, belonging to the technical field of machinery. Therefore, a conventional shrinkage fit and positioning toolcan reliably position. The shrinkage fit and positioning tool for the stator core and the casing comprises an upper base, a lower base and at least two columns. A support panel is slidably connected onto the columns. An elevating driving source is arranged on the upper base. A downward installing seat is arranged on the support panel. The bottom of the installing seat is equipped with a positioning boss allowing the casing to sleeve. The center of the installing seat is provided with a perforating hole. The positioning boss is equipped with at least three sliding channels extending in a radialdirection to communicate with the perforating hole in circumferential direction. Each sliding channel is slidably connected with an internally-supporting sliding block. A telescopic guide rod is arranged in the perforating hole in a penetrating manner. The top of the installing seat is provided with a telescopic driving source. The installing seat is further equipped with a limiting structure. The lower base is fixed with a positioning seat which is coaxial to the installing seat. A positioning structure capable of positioning the stator core is arranged on the positioning seat. The shrinkagefit and positioning tool has better circumferential positioning accuracy and stability.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a thermal sleeve positioning tool for a stator iron core and a casing. Background technique [0002] In the motor manufacturing industry, the heat-shrinking process is a common way to assemble the stator core and the casing. The so-called heat-shrinking process means that the casing is heated first, so that the casing deforms after being heated and the inner diameter becomes larger, forming a clearance fit with the stator. As the temperature of the casing drops, the clearance fit becomes an interference fit, so that the casing is firmly set on the outer wall of the stator core. [0003] At present, the shrink-fitting process basically adopts manual operation. It is difficult to guarantee the coaxiality of the stator core and the casing, and it is easy to get stuck and the casing is not assembled in place, resulting in assembly failure. If it is heated again after reheating, it is...

Claims

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Application Information

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IPC IPC(8): B23P11/02H02K15/02
CPCH02K15/02B23P11/02
Inventor 郭胤杰张学斌钟治平
Owner WENLING JIUZHOU ELECTROMECHANICAL
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