Process method of stamping forming of saw arm of swing saw

Abstract

The invention relates to a process method of stamping forming of a saw arm of a swing saw. the method comprises the steps that opening parts of middle holes of opening parts of two swing saw arm middle holes are opposite; an A0 pre-entering position and A1 to A9 grading positions are arranged in a mold cavity in sequence; firstly the A0 pre-entering position is used for stamping a guide hole; secondly, on the A2 grading position and the A3 grading position, the board side is cut off, and a top side of a base plate is formed, the A2 grading position punches and cuts off the right side part, theA3 grading position punches and cuts off the left part, the A2 grading position and the A3 grading position cut out the side upper edge connected with the top side, and an upper middle groove and a lower middle groove are formed in a board; 3, the A4 grading position bends the inclined part and a front end flat plate; 4, the A6 grading position punches the convex point of the middle and an inclined hole in the outer side at the same time; 5, the A7 grading position punches a middle hole; 6, the A8 grading position and the A9 grading position enable a punching part of the A9 grading position to be broken away from a board (19), and the two swing saw arms are broken, so that an outer lip side and an inner lip side are formed, wherein the A8 grading position forms the outer lip side and theinner lip side on the right side, and the A9 grading position forms an outer lip side and an inner lip side on the left side.

Description

technical field [0001] The invention relates to a stamping process, in particular to a process method for stamping the saw arm of an oscillating saw. Background technique [0002] The saw arm of the swing saw is a board structure, as attached image 3 , attached Figure 4 As shown; in the conventional technology, it is generally made by stamping; but in the conventional technology, one piece is usually molded out, and the efficiency is not high; moreover, due to the structure of the swing saw arm, the middle hole area in the middle is larger, while the side During the stamping process, the plate body with a complete exterior is unevenly stressed, which can easily lead to local deformation and affect the quality of the product after stamping. Existing continuous punching technologies, such as the technologies disclosed in the name of "Rubber Plug Continuous Punching Die" (publication number: CN104552462A) and "pumping plate type stator and rotor piece continuous punching die...

AI Technical Summary

Problems solved by technology

[0002] The saw arm of the swing saw is a board structure, as attached image 3 , attached Figure 4 As shown; in the conventional technology, it is generally made by stamping; but in the conventional technology, one piece is usually molded out, and the efficiency is not high; moreover, due to the structure of the swing saw arm, the middle hole area in the middle is larger, while the side The externally complete plate body, in the punching process, the material plate is not uniformly stressed, which can easily lead to local deformation and affect the product quality after punching

Existing continuous punching technologies, such as the technologies disclosed in the name of "Rubber Plug Continuous Punching Die" (publication number: CN104552462A) and "pumping plate type stator and rotor piece continuous punching die" (publication number: CN202984398U), are more suitable for products. rules, it is difficult to increase the productivity of the saw arm of the oscillating saw

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