Die changing method and device for stamping processing multiple die of sheet material

Abstract

A die changing method and a die changing device for plate multi-die stamping processing. The method is to arrange the upper and lower molds installed on the upper and lower mold frames on the circumference with the center line of the press hammer as the axis, and select the upper mold through the mold changer and its protrusions that rotate around the axis. And the transmission of stamping force, realize the same station mold change processing of the plate. The device includes the upper and lower molds arranged in a circle on the upper mold base and the lower mold base with the center line of the hammer of the press as the axis. The rotary die changer is equipped with a bump on the lower surface of the die changer. The circular movement trajectory of the bump corresponds to the arrangement position of each upper die. The punching force of the press is transmitted to the selected die through the die changer and the bump. The upper mold is fixed, and the upper mold is pressed vertically to close the corresponding lower mold. Its multiple stamping die positions are correspondingly fixed, which simplifies the internal structure and control links, and improves the working precision and working stability.

Description

technical field [0001] The invention relates to a stamping processing technology of multiple shapes of sheets at the same station, in particular to a die changing method and a die changing device for stamping and processing of multiple dies of a sheet. Background technique [0002] The method of stamping various shapes of plates in the same station is essentially a method of changing the molds of the plates in the same station. The method can improve the processing accuracy of the sheet metal and shorten the processing cycle, thereby improving the automation degree of the sheet metal processing industry and promoting the obvious increase of economic benefits. However, most of the devices currently on the market for realizing multi-die changing and stamping processing are turret type, pneumatic type or hydraulic manipulator drive type die changing and punching device. Although the structures and transmission modes of these devices are different, their...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to break the existing mode of thinking about die change, and provide a die change method and a die change device for plate multi-die stamping processing, which can realize die change processing by selecting one upper die to work, and overcome the two problems. The mold clamping error caused by the inconsistency of the set of mechanical transmission devices solves the problems of short service life and high cost of existing equipment

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