A rotary punching die

Abstract

The invention discloses a rotary punching die which comprises a lower die base, a punching die body, an upper die base, a rotary mechanism and a connecting rod mechanism. The lower die base is fixedly arranged and is provided with a vertically arranged supporting plate which is provided with a supporting hole. The punching die body rotatably penetrates through the supporting hole and is provided with a plurality of die holes distributed in the radial direction in a circumferential array mode. One end of the punching die body is provided with an eccentrically arranged clamping fit rod. The upper die base is movably mounted above the lower die base and provided with a plunger chip. The rotary mechanism comprises a rotary wheel and a fixed-distance wheel rim. The inner wall of the fixed-distance wheel rim is provided with a plurality of clamping grooves distributed in a circumferential array mode. The two sides of the clamping grooves are separately provided with slipping faces and blocking faces. The gradients of the slipping faces are smaller than those of the blocking faces. The fixed-distance wheel rim is fixedly mounted on the rotary wheel. The periphery of the rotary wheel is provided with a connecting lug. The fixed-distance wheel rim and the punching die body are coaxially arranged. By adoption of the rotary punching die, continuous machining of a plurality of circumferentially formed radial holes can be achieved.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a rotary punching die. Background technique [0002] Due to the different structures and functional requirements of parts in automobile body assembly, the structure of a certain mounting part of the body panel is shown in Figure 1. figure 1 It is a structural schematic diagram of a part of the instrument panel of the vehicle body; the mounting part 1' is in the shape of a truncated cone as a whole, and a plurality of radial holes 2' are evenly distributed around the bottom circumference. Holes 2', sometimes up to 12 radial holes 2'. [0003] The conventional method is to realize the punching work of the part by arranging a plurality of wedges around the circumference of the part, but designing the mold in this way requires arranging multiple wedges. The mold space is not enough, and the mold design and manufacturing cost is too high. At the same time, the mold ado...

AI Technical Summary

Problems solved by technology

[0003] The conventional method is to realize the punching work of the part by arranging multiple cams around the circumference of the part, but designing the mold in this way requires arranging multiple cams. The mold space is not enough, and the mold design and manufacturing cost is too high

At the same time, the mold adopts multiple oblique wedges, which makes it difficult to debug the mold, and cannot guarantee the accuracy and quality requirements of the parts.

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