Forced wedge return mechanism for lewis

Abstract

The invention discloses a forced wedge return mechanism for a lewis and relates to a die component. The forced wedge return mechanism comprises an inclined wedge slide block seat, an inclined wedge slide block and an inclined wedge transmission block, wherein the inclined wedge slide block seat is fixedly connected to the lower surface of an upper die seat; the inclined wedge slide block is connected with and can move relative to the inclined wedge slide block seat; the inclined wedge transmission block is fixedly connected with the upper surface of a lower die seat; the inclined wedge slide block and the inclined wedge transmission block are matched with each other through the inclined planes; a reposition mechanism is arranged between the inclined wedge slide block seat and the inclined wedge slide block; the inclined wedge slide block is made of GCR 15 steel; a forced wedge return linkage device is arranged between the inclined wedge slide block and the inclined wedge transmission block; a button is arranged on the side wall of the inclined wedge slide block; the lower end of the forced wedge return linkage device is fixedly connected to the interior of the inclined wedge transmission block, and the upper end of the forced wedge return linkage device is lapped on the button and can slide relative to the button. The forced wedge return mechanism can achieve safe wedge returning, the inclined wedge slide block has good kickback reliability, damage of a male die is prevented and the service life of the die is prolonged.

Description

technical field [0001] The invention relates to a mold part, in particular to a forced return wedge mechanism for hanging wedges. Background technique [0002] In stamping production, for the processing of the side wall holes of rotary workpieces (such as cylindrical parts, tubular parts, box-shaped parts, large covering parts, etc.), a wedge mechanism can be used to control the vertical movement of the mold base. It is converted into the horizontal movement of the punch to complete the punching. The shape of the large-scale automobile cover is complex, and there are many spatial surfaces. Holes are punched on the inclined surface of the middle part, so there is a hanging wedge mechanism, also known as a space mechanism wedge. In addition to reciprocating up and down with the upper die, it also moves a certain distance along the direction of the wedge slider seat according to the structural requirements. It facilitates the forming of holes on the large-scale cover parts of ...

AI Technical Summary

Problems solved by technology

[0002] In stamping production, for the processing of side wall holes of rotary workpieces (such as cylindrical parts, tubular parts, box-shaped parts, large covering parts, etc.), a wedge mechanism can be used to control the vertical movement of the mold base. It is converted into the horizontal movement of the punch to complete the punching. The shape of the large-scale automobile cover is complex, and there are many spatial surfaces. Holes are punched on the inclined surface of the middle part, so there is a hanging wedge mechanism, also known as a space mechanism wedge. In addition to reciprocating up and down with the upper die, it also moves a certain distance along the direction of the wedge slider seat according to the structural requirements. It facilitates the forming of holes on the large-scale cover parts of automobiles, simplifies the mold structure, and makes the mold structure more reasonable. When the wedge slider of the existing wedge mechanism completes the punching and return stroke, it relies on the spring installed in the wedge slider seat. And the stop pin, the reliability of the return stroke is poor, the wedge slider is often out of the working position, causing the punch to break, and often needs to be shut down for repairs, which increases the processing cost and reduces the production efficiency

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