1、 Process analysis of bottle opener blank

The shape of the blank of the bottle opener is relatively simple, the structure is symmetrical distribution, and the size of the bottle opener can meet the dimensional accuracy requirements of the blank of the bottle opener through general stamping. The dimension tolerance is free tolerance, the distance between the hole edge and the outer contour is far greater than the minimum wall thickness allowed by the punch and die, so the punch process can be used to complete the production of the bottle opener.

2、 Determine the stamping process plan of bottle opener blank

1. The blank of bottle opener needs two basic processes of punching and blanking. We use the following three processing schemes to process it

Scheme 1: first, the blank is punched down, and then another set of punching die is used to process the hole, and the blank of bottle opener is made with a single process die.

Scheme 2: punching blanking, progressive stamping and progressive die are used to complete the production and processing task of bottle opener blank.

Scheme 3: the compound die of blanking and punching at the same time is used to complete the production task of bottle opener blank. .

2. The characteristics of each processing scheme and scheme comparison are as follows.

Scheme 1: the structure of the required mold is not very complex, and it is relatively easy to process the mold, but it takes two processes to process the blank of the machining center, and the whole production with two molds, so the production cost is a little high, and the processing efficiency is very low. The most important thing is that this scheme can not guarantee the dimensional accuracy of the blank of the bottle opener. We don't want this plan.

Plan 2: Although using progressive die, its processing efficiency is relatively high. However, the shape of the progressive die is very large, and it is troublesome to manufacture the die. In this way, the cost of the progressive die is too high, and the die itself is not suitable for processing the bottle opener with very small shape and simple structure. Therefore, we do not want this kind of case.

Scheme 3: This requires a mold, and the accuracy of the bottle opener blank and the production speed can meet the requirements, and the key cost is not too high.

3. The final determination of the program to sum up, the bottle opener blank stamping die uses punching Blanking Compound Die for product processing.