Floating matrix trimming piercing die

Abstract

The invention relates to a floating matrix trimming piercing die. The die is characterized in that a floating matrix is mounted on a sliding block, a piercing punch and a trimming punch are mounted on a fixed plate, the fixed plate and a base plate are fastened on an upper bottom plate together; a pressure plate is connected with the upper bottom plate through a stripper bolt, and an inclined wedge is fixed on the upper bottom plate; the pressure plate is pressed on a bush and the upper bottom plate; a guide pillar is mounted on a lower bottom plate; a locating block and a trimming fixing matrix are fasted on the lower bottom plate; a bottom guide plate is fixed on the lower bottom plate, the sliding block is slidingly mounted on the bottom guide plate, the floating matrix is mounted on the sliding block, a spring is mounted on the sliding block, the floating matrix moves along a vertical direction, and is limited by a limiting plate fixed on the sliding block; a nitrogen cylinder is fixed on the lower bottom plate, a piston surface is in contact with the sliding block, and a waste sliding plate is connected with a waste box. The floating matrix trimming piercing die can be used for the trimming and piercing of an end of large-scale pipe parts; the production efficiency can be improved by more than 2 times; the work piece has good quality, the production is stable, and the rejection rate is greatly reduced; the fixture, device, logistics and manpower cost are saved; and the floating matrix trimming piercing die has simple structure and is easy to spread.

Description

technical field [0001] The invention relates to a trimming and punching die of a floating concave die, which is used for trimming and punching the ends of large-scale tubular parts. Background technique [0002] Large pipe parts are a common type of parts on the sub-frame assembly of cars. The manufacturing process of such parts is generally to use a φ60-80mm tube, bend the tube with a CNC tube bender, and then stamp it with a mold. The coaxiality of the upper and lower arcs of the end is required to be within 0.5mm. The holes on the end plane are positioning holes, and the requirements for dimensional accuracy and position accuracy are very high. Due to the limitation of the size and space of the parts and the requirements of precision, large tubular parts have always been a difficult point in the production and manufacture of the subframe assembly. The quality of the manufacturing process directly determines the quality of the parts and the stability of production. [00...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a floating die trimming punching die, the die can float up and down, which solves the problem of weak strength of the punching die at the end; Die; it can complete the upper side trimming, punching and lower side trimming of the pipe end in one punching, and the production efficiency is high

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