Special machine for highway guardrail connecting blocks

Abstract

The invention discloses a special machine for highway guardrail connecting blocks. Pin shaft seats are symmetrically fixed on a base on two sides of an inner convex round die set, the number of same envelope pressing rotary arms is two, the envelope pressing rotary arms are symmetrically hinged on the pin shaft seats through pin shafts, the envelope pressing rotary arms have degree of freedom rotating around respective pin shaft is ensured during installation, a main cylinder bracket is fixed on the base in back of the inner convex round die set, a guide rail is fixed on the main cylinder bracket, a sliding block is arranged on the main cylinder bracket through the guide rail, one end of a core rod die is fixed with the sliding block, and a concave arc as same as an inner convex arc in a connecting block is previously made at the bottom of the core rod die; when the core rod die is connected and fixed with the sliding block, the concave arc at the bottom of the core rod die is aligned with the inner convex arc on the upper part of the inner convex round die set all the time; and a main cylinder is fixed at the top of the main cylinder bracket, and a piston rod of the main cylinder is fixed with the sliding block.

Description

technical field [0001] The invention relates to a highway guardrail connection block manufacturing machine, in particular to a highway guardrail connection block manufacturing machine, which belongs to the technical field of metal forming special equipment. Background technique [0002] The expressway connection block is an important accessory in the expressway facility. In addition to its function of fixing the guardrail connection to the positioning pile, at the same time, its hexagonal structure can use its elastic deformation under the condition of external impact. Excellent performance, play a certain role in buffering the impact force. [0003] At present, the main manufacturing method of expressway guardrail connection fast is: using cold stamping die, after multiple stamping methods, pressing out the blank of the hexagonal connecting block, and finally, after welding the interface part of the hexagonal blank to form a finished connection Blocks, as can be seen from ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special machine for manufacturing expressway connecting blocks, which overcomes the defects of many manufacturing processes, low productivity and high manufacturing cost in the manufacturing of existing expressway connecting blocks.

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