Multi-feature compound punching rotary die for tension plate and working method thereof

Abstract

The invention discloses a multi-feature compound punching rotary die for a tension plate and a working method thereof. The rotary die comprises an upper die assembly and a lower die assembly, whereinthe upper die assembly comprises a counterbore punch, a combined punch and a corner rounding punch, the counterbore punch punches each counter bore, the combined punch machines a through hole and a strip-shaped groove of the tension plate, the corner rounding punch and the lower die assembly cooperate to machine the rounded corners of the four corners of the tension plate, the counterbore punch and the combined punch can be respectively retracted into a cavity when rotating, the deflection angle of the position of counterbore punch and the combined punch is the same as the rotation angle. Whenprimary punching is carried out, the upper die assembly is rotated, the combined punch is retracted, and the counter bore is punched; and when the secondary punching is carried out, the upper die assembly is reset, and then the through hole, the strip-shaped groove and the rounded corners are punched. According to the multi-feature compound punching rotary die for the tension plate and the working method thereof, the counter bore, the through hole, the strip-shaped groove and the rounded corners can be punched by one punching machine, one-time positioning is carried out, the precision is high, the machining time is shortened by more than 60%, the manual work is reduced, the safety is higher, and the cost is lowered.

Description

technical field [0001] The invention belongs to the field of tension plate processing, and in particular relates to a tension plate multi-feature composite stamping rotary die and a working method thereof. Background technique [0002] Tension plate, also called anchor plate and end plate, is used in the processing of prestressed concrete piles. It is a component installed at both ends of prestressed concrete piles. It is mainly used for anchoring and construction of prestressed tension steel rods in the production of hollow piles. The main structure of the connecting pile in the paper is a square steel plate, and the positioning counterbore of the tension steel bar is arranged on the steel plate surface with the same number as the main reinforcement of the hollow pile. Square tension plate as attached in the manual figure 1 As shown, the tension plate includes central hole, rounded corner, threaded through hole, countersunk hole, strip groove, chamfer and other features. A...

AI Technical Summary

Problems solved by technology

[0009] In view of the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the present invention is that the rounded corners, through holes, counterbores, and strip grooves of the tension plate need to be disassembled, installed, and positioned many times, which is time-consuming and labor-intensive, and the processing poor precision

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