Pressing mold for round tube class car bumper

Abstract

A pressing mold for a round tube class car bumper comprises a pressing device, a pressing mechanism and a core shaft. The pressing device comprises an upper mold plate, a left wedged pressing block, a right wedged pressing block, a left wedged sliding block, a right wedged sliding block, a left pressing block, a right pressing block, a lower mold plate and a sliding block seat, wherein the upper mold plate is pressed down along with a punch machine; the left and right wedged pressing blocks fit and press the left and right wedged sliding blocks respectively; the left and right wedged sliding blocks push the left and right pressing blocks to close respectively; grooves of the left and right pressing blocks are closed and form a flat round hole matched with the outline of a flat round section of a bumper product to be machined. The pressing mechanism is provided with a pressing fixing seat and a pressing assembly which vertically correspond in position. The rear portion of the core shaft is fixed, the front portion of the core shaft extends to the position between the grooves of the left and right pressing blocks, and the section of the front section of the core shaft is changed from a round shape to a flat round shape. The pressing mold for the round tube class car bumper meets the machining requirements of the product through one time of pressing, obviously improves production efficiency, guarantees product quality, relieves labor intensity, reduces production cost and meets the batched production requirement.

Description

technical field [0001] The invention relates to a profiling device, in particular to a profiling die used for round tube anti-collision bars of automobiles. Background technique [0002] In auto parts, round tubular parts are quite common, among which anti-collision bars are an indispensable and common round tubular parts. After the round anti-collision bar is rolled and welded, some irregular shapes on the product need to be completed by stamping. Figure 7 , Figure 8 , Figure 9 The anti-collision bar product part 12 shown in the figure, the cross-sectional shape of the anti-collision bar product part gradually changes from round to oblate, and the geometric dimensions of each part have relatively strict tolerance requirements, which cannot be completed by the rolling process, and need to be completed by stamping and molding dies . The prior art adopts upper and lower molds to press together, the lower mold is fixed, and the upper mold is pressed down. The forming meth...

AI Technical Summary

Problems solved by technology

The problem with this processing method is that two times of core piercing, core pulling and two presses are required to ensure that the product meets the requirements. Although this process method can process qualified products, the secondary stamping and secondary core piercing 1. The core pulling operation makes the production efficiency extremely low, consumes a lot of manpower and material resources, it is difficult to meet the requirements of large batch production capacity, and increases the production cost. It is a very uneconomical molding process method

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