Multi-piece rotation type equal-indexing machining workpiece overall clamping and rotating machining fixture

Abstract

The invention discloses a multi-piece rotation type equal-indexing machining workpiece overall clamping and rotating machining fixture. The fixture comprises a bottom tool body, a middle tool body andan upper tool body which are sequentially connected in a stacking mode from bottom to top; N installing holes formed side by side are formed in the fixture, and a steering groove I and a steering groove II are formed in the portion, located at the outermost-end installing hole, of the upper tool body and the top face of the portion, located at the outermost-end installing hole, of the bottom toolbody; and an expansion device is installed in each installing hole and comprises a pulling rod, a pulling rod gear and an expansion sleeve with a gear, the upper end of each pulling rod is provided with an inverted wedge-shaped section and matched with the corresponding expansion sleeve with the gear, the lower end of each pulling rod is provided with a threaded section and matched with a threadformed in an inner hole of the corresponding pulling rod gear, the adjacent expansion sleeve gears and pulling rod gears mesh with each other, and the expansion sleeve with the gear at the outermost end and the pulling rod gear at the outermost end are connected with a steering handle and an expansion handle respectively. According to the multi-piece rotation type equal-indexing machining workpiece overall clamping and rotating machining fixture, clamping and continuous machining of multiple products can be completed at a time, corner rotating is consistent and quick when corner machining is conducted, the effective operation time of the equipment can be prolonged maximally, the production efficiency of the equipment can be improved maximally, and the effective equipment stroke utilizationrate can reach to 80% or above.

Description

technical field [0001] The invention relates to a device for overall clamping and rotating processing of workpieces, in particular to a fixture for integrally clamping and rotating processing of workpieces for multi-piece rotary equal division and indexing processing. Background technique [0002] In mechanical processing, there are often rotary and equal division machining workpieces that need to be clamped and processed. Rotary equal division and division machining workpieces mean that after the first cut of the workpiece is completed, the workpiece needs to be rotated in turn for the second and second cuts. Three cuts... ...the Nth cut is processed, and the subsequent processing is the same as the first cut, and the angle of each rotation is 360° / N. [0003] For the clamping of turning and machining of multiple rotating parts with equal division and indexing at one time, the problems that need to be solved include: [0004] (1) In order to maximize the utilization of equ...

AI Technical Summary

Problems solved by technology

[0008] The disadvantage of single-piece clamping with ordinary chucks or hydraulic chucks is that each product needs to perform the action of loading-clamping-processing-retrieving (cycle), repeated actions without value-added, low equipment efficiency, labor The strength is high. Although the working stroke of some equipment is allowed, two chucks can be installed at one time, but due to the size of the chuck itself and the clamping form, there is no way to complete the processing of two pieces in one continuous feeding process;

[0009] However, the disadvantages of using multiple groups of hydraulic / pneumatic rotary indexing plates are: first, the investment price is high, and second, the indexing plate will vibrate violently when the cutting amount is large and the impact is large, and the processing quality of the product is difficult to guarantee. , the device is easily damaged

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