Fixture for pressing shaft

Abstract

The invention provides a fixture for a pressing shaft, which belongs to fixtures and is a fixture used when a motor rotating shaft is pressed into a rotor lining. The fixture comprises a guide core body, a cylinder body, a sliding ring and a sliding block, wherein a guide slide way for the motor rotating shaft to pass through is arranged on the guide core body; the sliding ring and the sliding block are arranged in an inner chamber of the cylinder body and are connected in a way of sliding up and down; the sliding block is positioned in the middle of the sliding ring and is connected with thesliding ring in the way of sliding up and down; the guide core body is arranged on the top of the sliding ring and the sliding block; the guide slide way is arranged over the sliding block; and a protection mechanism for preventing the motor rotating shaft from being thickened or bent and deformed is connected between the sliding ring and the cylinder body, and between the sliding block and the cylinder body respectively. The fixture for pressing the shaft of the invention can effectively prevent the motor rotating shaft from being thickened or bent and deformed when the motor rotating shaft is pressed into the rotor lining so as to ensure the precision of the mounting size on the lower part of the motor rotating shaft.

Description

Technical field: [0001] The invention relates to a tooling used during assembly, in particular to a tooling used for the finale when the motor shaft is pressed into the rotor bushing. Background technique: [0002] Existing finale tooling such as figure 1 As shown, it generally includes a guide core 103, which is provided with a guide slideway 105. When the worker assembles the motor shaft 102, the worker first needs to install the guide core 103 on the lower workbench 106 of the hydraulic press. Then the rotor 104 is buckled on the top of the guide core 103, and the bushing 101 embedded on the rotor 104 is coaxial with the guide slide 105, and finally the motor shaft 102 is pressed into the bushing by the pressure F of the working table on the hydraulic press. Inside set 101. In order to ensure that the lower part of the motor shaft 102 has an accurate installation dimension L after the motor shaft 102 is pressed into the bushing 101, workers usually close the hydraulic p...

AI Technical Summary

Problems solved by technology

In order to ensure that the lower part of the motor shaft 102 has an accurate installation dimension L after the motor shaft 102 is pressed into the bushing 101, workers usually close the hydraulic press after the bottom of the motor shaft 102 touches the lower workbench 106 of the hydraulic press, but this operation The method still has the following defects in the actual application process: when the lower part of the motor shaft 102 reaches the precise installation dimension L, that is, after the bottom of the motor shaft 102 touches the lower workbench 106 of the hydraulic press, there will be a delay due to the operator closing the hydraulic press. In other words, it is impossible for the operator to shut off the hydraulic machine immediately, and the upper workbench will continue to press down before the hydraulic machine is turned off, which will cause the motor shaft to be thickened or bent, which will affect the accuracy of the installation dimension L

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