Punching device for workpiece with flexibility

Abstract

The invention provides a punching device for a flexible workpiece capable of punching a flexible workpiece with high precision even if the position of the noncircular part of the flexible workpiece to be punched is displaced in a theta direction by more than a predetermined angle. While the coordinate values of the centers of reference points B2 and B2 whose images are picked up by a camera C and subjected to image processing (binarization) and image data subjected to graying process are being varied and displaced relative to the coordinate values of the centers of the reference points previously inputted to an image processor as teaching data, and relative to the image data of the outer periphery of an end of a product B subjected to graying process, a punching part 2 is controlled to move in the theta direction and in the directions of X and Y axes, or the workpiece is controlled to move in the theta direction as the punching part is controlled to move in the directions of the X and Y axes, whereby the coordinate values are matched for punching.

Description

technical field [0001] The present invention relates to a device for piercing a workpiece having flexibility. Background technique [0002] In the prior art, there are various types of objects to be punched by punching devices for flexible workpieces, such as green sheet tapes, TAB tapes, flexible printed circuit board tapes, and the like. flakes etc. [0003] The shape of the hole perforated in these flexible workpieces includes not only round holes, but also non-circular holes such as rectangular holes and U-shaped holes. The non-circular holes are not only parallel to the long and short sides of the belt (flexible workpiece) or sheet (flexible workpiece), but are often perforated at positions displaced in the θ direction. For example, on a flexible printed wiring board or the like, it is often necessary to form several products in a predetermined arrangement pattern, and the several products are inclined in the θ direction with respect to the long side and the short sid...

AI Technical Summary

Problems solved by technology

[0008] Therefore, since the sticking area with respect to the sheet and the workpiece holding seat is small, in order to hold the sheet, the above-mentioned adhesive tape must be pasted with a relatively high strength, so that the peeling operation of the adhesive tape before moving to other processes is very troublesome. When peeling, wipe the workpiece holding seat vigorously, sometimes it will damage the workpiece holding seat, or damage the adhesive surface of the sheet, and a special peeling machine is required

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