Clamping device for large stator turned over by 180 degrees

Abstract

The invention relates to a turnover fixture for motor stators, in particular to a clamping device for a large stator turned over by 180 degrees, aiming at solving the problem existing in the process of adopting a dual-stand-column turning machine to turn over a large stator by 180 degrees because a clamping device matched with the turning machine does not exist at present. The clamping device comprises a supporting base, at least four hydraulic cylinders are fixed on the upper supporting face of the supporting base, and a press block is fixed on the end part of the telescopic rod of the hydraulic cylinder; and the clamping device further comprises a ring with an upper end face of an inner conical face, and the contact face between the press block and the upper end face of the ring is an outer conical face matched with the inner conical face of the ring. A positioning disk is fixed on the upper supporting face of the supporting base, the lower part of the press block is provided with aT-shaped sliding block, and the positioning disk is provided with a T-shaped chute matched with the T-shaped sliding block at the lower part of the press block. The invention is a device matched withthe turning machine, solves the technical problem on the turning of the large stator, improves the production efficiency and the safety in a turning process, and can rapidly and automatically realizethe clamping and the dismounting before and after the turning.

Description

technical field [0001] The invention relates to a tool for turning over a motor stator, in particular to a 180-degree turning clamping device for a large stator. Background technique [0002] The large stator (weight about 25 tons, diameter 4800mm) cannot be clamped at the outer diameter because the coil is assembled on the outer diameter slot, and can only be clamped at the stator installation notch. [0003] In the prior art, when a large stator is turned over 180 degrees, a mandrel is inserted into the spigot of the stator, and a plurality of bolts on the end face of the spigot of the stator inner hole are used to connect the screw holes on the mandrel, and one end of the mandrel is The crane is used as the center for hoisting. After lifting, use the movement of the crane to realize a 90° turn over first, and then use the other end of the mandrel as the center to lift and move the stator again by using the crane to turn over 180°. This type of overturning has high labor ...

AI Technical Summary

Problems solved by technology

This type of overturning has high labor intensity and low efficiency, requiring operators to frequently disassemble and assemble bolts, and it takes about 2 hours to overturn one unit; it is poor in safety, and requires the careful cooperation of operators and cranes during the overturning process

[0004] Using a double-column turning machine can realize the safe and efficient turning of the stator, but due to the lack of a clamping device matched with the turning machine, the following problems arise during the turning process: 1. In the process of turning 180 degrees, because there is an assembly gap between the inner hole of the stator notch and the positioning disc of the turning machine, when it is turned to 90 degrees, the self-weight of the stator itself will have an impact on the positioning disc, which will impact the inner hole of the stator notch. 1. The positioning disc will be damaged, which will cause damage to the turning machine in severe cases; 2. How to ensure that the stator is reliably clamped after turning 180 degrees without causing the stator to slip; 3. How to clamp and disassemble before and after turning over Realize fast and automatic

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