Primary-sequence forming tool and forming method for omega-shaped elastic strip production

Abstract

The invention discloses a primary-sequence forming tool and forming method for omega-shaped elastic strip production. The forming tool comprises an upper die plate and a lower die plate; a left upperdie, a right upper die and a middle upper die are arranged on the upper die plate, upper die rollers are arranged on the left upper die and the right upper die, and a middle upper die roller is arranged on the middle upper die; a left lower die holder, a right lower die holder and a middle lower die are arranged on the lower die plate, a material bearing wheel, a forming roller and a lower die cushion block are arranged on each of the left lower die holder and the right lower die holder, and a middle lower die roller is arranged on the middle lower die. According to the primary-sequence forming tool for an omega-shaped elastic strip, the middle part of the elastic strip is also primarily formed while the two limbs of the elastic strip are formed, and the positioning of the middle part of the elastic strip in the subsequent process is guaranteed; and the operation is simpler, and the positioning is more accurate; and the middle part of the elastic strip is primarily formed in the primary sequence and formed in the subsequent secondary sequence, the purpose of reducing thin-drawing of the middle part and the tail part of the elastic strip can be achieved, and the processing size precision of the omega-shaped elastic strip can be better guaranteed.

Description

technical field [0001] The invention relates to a one-step forming tooling and a forming method for producing ω-shaped spring bars. Background technique [0002] In the production of the existing ω-shaped spring bars, the structure of the one-step forming tooling is as follows: figure 1 As shown, it includes: upper template 1, hexagon socket bolt 2, upper mold base 3, upper mold roller 4, roller pin 5, roller pin 6, lower mold roller 7, lower mold pad 8, inner hexagon bolt 9, inner six Bolt 10, short lower die 11, lower template 12, middle support lower die 13, hexagon socket bolt 14, positioning block 15, jacking wire 16, hexagon socket bolt 17, raw material workpiece 18, material return block 19, hexagon socket bolt 20, Return material guide sleeve 21, return material seat 22, stage clip 23, one-order forming workpiece 24 etc. [0003] The working principle of the existing one-step forming tooling for the production of ω-shaped elastic strips is as follows: figure 2 an...

AI Technical Summary

Problems solved by technology

In the next process, when the diameter of the raw material is within the lower limit of the standard requirement, the phenomenon that the minimum size of the middle part and the tail of the clip often exceeds the tolerance

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