Roll shaft manual expanding mould clamp

Abstract

The invention provides a roll shaft manual expanding mould clamp, and belongs to the technical field of machines. The roll shaft manual expanding mould clamp solves the problems that an existing rollshaft expanding mould clamp is narrow in application range and poor in safety. The roll shaft manual expanding mould clamp comprises a base, the base is fixedly connected with an expansion sleeve forworkpiece clamping through a positioning structure. A shaft hole is formed in the middle portion of the expansion sleeve. A workpiece penetrates through the shaft hole, the outer portion of the expansion sleeve is provided with a conical face coaxial to the shaft hole. A pressing sleeve making the shaft hole of the expansion sleeve contracted in the radial direction is arranged above the expansionsleeve. The pressing sleeve is internally provided with a conical hole matched with the conical face. During downward pressing of the pressing sleeve, the shaft hole of the expansion sleeve is contracted in the radial direction, and the pressing sleeve is connected with the positioning structure through a connecting structure. The roll shaft manual expanding mould clamp has the advantages that the application range is wide, and safety is high.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a roller manual tire inflation fixture. Background technique [0002] Machinery manufacturing is inseparable from metal cutting and grinding machine tools, and machine tool fixtures can ensure the quality of machining, improve production efficiency, reduce labor intensity, and reduce excessive requirements for workers' skills. They are one of the indispensable and important equipment in the production process. With the development of industry and technology, and the continuous improvement of automation, the processing must deal with parts of various specifications and shapes, and correspondingly, the equipment is required to have various fixtures of different shapes. [0003] When processing the rollers of the gear hobbing machine, the traditional method is to use different centers at both ends of the rollers to withstand the rollers and lock them with screws. The clamping effici...

AI Technical Summary

Problems solved by technology

[0003] When processing the rollers of the gear hobbing machine, the traditional method is to use different centers at both ends of the rollers to withstand the rollers and lock them with screws. The clamping efficiency is low and the clamping stability is poor.

In the prior art, some people use a tire expanding fixture to clamp the roller, and lock it through the hydraulic cylinder that comes with the machine tool. This kind of tire expanding fixture can only be applied to machine tools with hydraulic cylinders, not suitable for ordinary machine tools or Machine tools with damaged hydraulic cylinders have a small scope of application

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