Automatic feeding, positioning and punching device

Abstract

The invention provides an automatic feeding, positioning and punching device which comprises a body base, a transmission shaft, a rack, an upper die plate, a male die, a female die, a positioning block, a ratchet and a ratchet shaft, wherein the body base is an L-shaped rack; the upper die plate capable of moving up and down is mounted at the top of the body base; and the rotatable transmission shaft is mounted in the middle of the body base in the same direction as the upper die plate. Through the ratchet and an index plate structure, a part can move equidistantly in the circumferential direction by virtue of back and forth movement of a punch and mechanical transmission switching, machining the part at a required position is ensured, the part is rotated and positioned accurately, the positioning error is small, the degree of overall automation is high, the machining process doesn't need to be controlled manually, the part can be machined continuously until all holes are finished in sequence, and the problems of high worker learning cost and high maintenance cost caused by the reason that rotation is controlled by a numerical control system are solved.

Description

technical field [0001] The invention relates to an automatic feeding positioning punching device, which belongs to the field of small-sized sheet metal processing. Background technique [0002] Such as Figure 5 The annular flame tube shown is the main part of the current aero-engine structure. Since the engine has high-temperature gas in the core part, the flame tube works in the high-temperature and high-pressure airflow. It is a ring-shaped sheet metal structure, and at the same time, certain small holes are evenly distributed on the surface of the part, and the groove-shaped features are used to introduce external air, cool the wall of the flame tube, improve the working life and high-temperature strength of the flame tube, and introduce airflow to participate in combustion at the same time. Improve fuel combustion efficiency. [0003] Specifically, the flame tube is a small-diameter thin-walled high-temperature alloy annular part, with 24 small holes with a diameter of...

AI Technical Summary

Problems solved by technology

[0006] There is a problem of error accumulation in the positioning of this progressive method. In general, the positioning part should be as close as possible to the size of the positioning feature. When working, the positioning part should be able to enter the positioning hole of the part smoothly. The size of the positioning part must be smaller than the size of the part feature. Therefore, there is always a gap between the positioning part and the positioning feature. As the stamping process progresses, the error gradually accumulates. The cumulative error of the product will cause the front and rear processing positions to exceed the size range required by the product, and in the case of mass production, manual positioning, The workload of the workers is heavy, the labor intensity is high, the production efficiency is low, and the safety is not good

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