Expansion sleeve linkage compression mechanism

Abstract

The invention relates to an expansion fixture for locating hole type spare parts, in particular to an expansion sleeve linkage compression mechanism. The expansion sleeve linkage compression mechanism comprises a fixture board; a rotary support block is fixed above the fixture board; a conical post is mounted in an inner hole of the support block; an expansion sleeve is sleeved on the upper conical surface of the conical post; the upper plane of the expansion sleeve is higher than the upper plane of the conical post; an expansion sleeve compression block is mounted at the upper head face of the conical post; the expansion sleeve compression block is provided with a compression press plate; a floating press plate is mounted between the arc surface of the bottom of the compression press plate and the surface of the outer circle of the expansion sleeve compression block; the upper surface of the floating press plate is circular arc-shaped transitional surface; the circular arc-shaped transitional surface is jointed at the arc surface of the bottom of the compression press plate; the fixture board, the conical post, the expansion sleeve compression block and the compression press plate are formed with through holes which are connected with each other. The expansion sleeve linkage compression mechanism is simple, reasonable and compact in structure, is low in production and manufacturing cost, and is capable of expanding and locating the workpieces effectively and quickly.

Description

technical field [0001] The invention relates to an expansion fixture for positioning hole parts, in particular to an expansion sleeve linkage pressing mechanism. Background technique [0002] In the design of machining fixtures, parts that are positioned through the large hole and pressed against the end face of the large hole step are often encountered. At present, expansion sleeves are generally used for positioning of large holes, which is more convenient for clamping workpieces than fixed pins, and the end faces of steps are then pressed by inserting plates. In this structure, the expansion sleeve must be tightened first, and then the inserting plate should be pressed tightly. If this method is a manual fixture, it will be cumbersome to operate, and if it is a hydraulic fixture, the cost of components will be relatively high. For this reason, it is urgent to design a linkage expansion sleeve pressing mechanism to solve the problem of complicated operation. Contents o...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides an expansion sleeve linkage compression mechanism, which can quickly and conveniently expand and tighten the workpiece, and effectively solves the problem of cumbersome operation of the existing compression mechanism

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