Stamping die and wedge mechanism thereof

Abstract

The invention discloses a stamping die and a wedge mechanism thereof. The wedge mechanism comprises a roller installed on a slider through a rotary shaft, the roller rotates around the rotary shaft and relative to the slider, and the tangential direction of the roller is the sliding direction of a concave V-shaped guide plate and a convex V-shaped guide plate; a drive base is provided with a roller drive base, a sliding guide face of the roller drive base is matched with the roller, and the roller rolls along the sliding guide face. Thus, by means of the roller structure, before the concave V-shaped guide plate on the slider makes contact with the convex V-shaped guide plate, the slider and a trimming or flanging insert installed on the slider are pushed to move close to a board due to the fact that the roller moves along the sliding guide face, trimming, flanging and shaping can be carried out, the size is small under the same slider moving stroke, and accordingly machining and manufacturing cost is reduced. Besides, installation space of the wedge mechanism in the stamping die is reduced, the size of the die is reduced, and die development cost is reduced.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to a wedge mechanism for stamping dies. The present invention also relates to a stamping die comprising the above-mentioned cam mechanism. Background technique [0002] Stamping parts of automobile body are mostly three-dimensional structures with complex shapes. During stamping, some holes or surfaces have an included angle with the stamping direction (that is, the vertical direction), which cannot be realized by positive stamping, but the wedge mechanism can make the stamping Vertical movement is transformed into horizontal or tilted movement, thus effectively solving this problem. [0003] Please refer to figure 1 and figure 2 , figure 1 It is a schematic structural diagram of a typical wedge mechanism in the prior art; figure 2 for figure 1 Schematic diagram of the drive base in the cam mechanism shown. [0004] Such as Figure 1-2 As shown, the existing wedge me...

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Problems solved by technology

[0006] However, when the working strokes of side punching, side trimming, and side flanging are relatively large, the stroke of the slider 2 is relatively large, and the length of the convex V-shaped guide plate needs to be longer, which leads to an increase in the structural size of the wedge body. On the other hand, the size of the wedge mechanism becomes larger, and its installation space in the mold structure increases, resulting in an increase in the overall size of the mold and an increase in mold cost, and may interfere with other working mechanisms

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