A high-efficiency and high-precision machining process for prestressed tensioned plates

Abstract

The invention discloses a prestressed tension plate high-efficiency high-accuracy machining technology. A prestressed tension plate comprises a center hole, circular corners, threaded through holes, countersink holes, strip-shaped grooves and chamfers. The prestressed tension plate high-efficiency high-accuracy machining technology comprises the following steps that cutting operation is conducted,specifically, a plate shearing machine is adopted to conduct strip cutting operation, and then a square plate is cut; the center hole is punched, specifically, the large circular center hole is punched by a punching machine; the countersink holes, the through holes, the strip-shaped grooves and the chamfers are punched, a convex mold is rotated, and the countersink holes are punched through primary punching operation; after rotation resetting is conducted, the rest of characteristics are punched through secondary punching operation; tapping operation is conducted, specifically, a multi-shafttapping machine is used, each through hole and each screw tap corresponds to a locating pin, and self-centering machining is conducted; and edge planing operation is conducted, specifically, a push-and-pull oil cylinder is installed on a planing machine, and an upper planing tool and a lower planing tool are arranged on the two sides of a track. According to the prestressed tension plate high-efficiency high-accuracy machining technology, the number of the tension plate machining steps is reduced, and the transfer work is reduced; and the countersink holes, the through holes, the strip-shapedgrooves, the circular corners and the tapping operation are positioned at one time and simultaneously machined, the positioning accuracy is improved, and the machining efficiency is improved.

Description

technical field [0001] The invention belongs to the field of prestressed pile tensioning plate processing, and in particular relates to a high-efficiency and high-precision processing technology for prestressing tensioning plate. Background technique [0002] Prestressed 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 hollow piles. It is mainly used for prestressed tensioned steel rods in the production of hollow piles. The main structure of the piles in anchorage and construction is a square, round or polygonal special-shaped steel plate, and the steel plate surface is arranged with the same number of tension steel rods as the main reinforcement of the hollow pile. The inventor has been engaged in the production of pile tension slabs for more than ten years, and knows that tension slabs are steel structural parts with simple structure and low adde...

AI Technical Summary

Problems solved by technology

[0012] There are 8, 12, 16, 20 or other numbers of tensioning holes (combination of threaded through holes, countersunk holes, and bar grooves) in square tensioning plates. corners, many processes, many equipments are required, and the billet needs to be transferred multiple times on each equipment, while the weight of a square tension plate is relatively large, which consumes a lot of time and labor. Difference

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