Adjustable wave washer forming device

Abstract

The invention provides an adjustable wave washer forming device which comprises an upper press plate and a bottom plate. The upper press plate and the bottom plate are horizontally arranged in parallel; a group of forming press claws on each of the upper press plate and the bottom plate is fixed onto each of the opposite sides of the upper press plate and the bottom plate; the axes of the two groups of forming press claws coincide with each other; the forming press claws are of stripe structures elevated in a ladder shape from inside to ouside; and the forming press claws on the upper press plate and the bottom plate are cross-distributed on vertical projections. According to the adjustable wave washer forming device provided by the inventon, through the ladder structure arrangement of theforming press claws, the height after forming can be controlled through adjusting a stroke, a resilience value is provided, no fixture fixing is needed during heat treatment, and the dimensional accuracy after processing can be ensured to meet the requirements even if heat treatment is carried out without fixture fixing, so that thousands of workpieces can be processed at a time; and meanwhile, with guide pillar scale components with scale marks and a spacing function, the repeat positioning accuracy is high, and the problems of the need of mold repair for new models, high heat treatment shaping fixture cost and long processing period are solved.

Description

technical field [0001] The invention relates to an adjustable wave washer forming device. Background technique [0002] Wave washer structure such as figure 1 As shown, the elastic alloy plate is used to process flat gaskets (such as figure 2 Shown) after forming, and then the formed workpiece is installed on the forming tool for heat treatment and finalization. [0003] The wave washer forming tooling in the prior art has the following problems: [0004] 1. Due to the requirement of the height dimension h after the wave washer is formed, the material used has a certain amount of springback after forming, and the amount of springback is different for different specifications. This structure cannot adjust the stroke of the forming process. It takes 3-5 times of trial production and mold repair to get the final result. The mold trial period is long, usually 5-10 days; [0005] 2. After forming, it needs to be fixed on the tooling for heat treatment and setting. At the sam...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the requirement of the height dimension h after the wave washer is formed, the material used has a certain amount of springback after forming, and the amount of springback is different for different specifications. This structure cannot adjust the stroke of the forming process. It takes 3-5 times of trial production and mold repair to get the final result. The mold trial period is long, usually 5-10 days;

[0005] 2. After forming, it needs to be fixed on the tooling for heat treatment and finalization. At the same time, only 20 to 30 workpieces can be installed on each tooling. If the number of installations is too large, the effect after heat treatment will be affected, and the pass rate will be low.

There are many kinds of wave gaskets in the company, about 20 kinds of specifications, and the production quantity of each specification is relatively large, each batch of production is 200-500 pieces, the required number of tooling is large, and the production cycle is long;

[0006] 3. The service life of heat treatment and shaping tooling is short. Generally, the accuracy will drop after 5 to 10 times of use, and it can only be scrapped for re-production and processing.

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