Cut processing method, cut processing apparatus and work-piece supporting construction used with said apparatus

Abstract

To provide a cutting method and a cutting device for improving cutting accuracy by preventing deformation by preventing the push-down of a workpiece by an upper cutting blade at the time of cutting (full cut or half cut) of the upper cutting blade. The workpiece W inserted into a hole W1 opened in a sheet WH for a thin work holder is temporarily fastened to the sheet WH for the work holder by being located in a middle region of the thickness of the workpiece W not to be in contact with the upper and lower cutting blades C1 and C2 for the half cut. The workpiece W is half-cut by being shared over the whole width without cutting the sheet WH for the work holder by the upper and lower cutting blades C1 and C2 of required lengths which are longer than the whole width of the workpiece W and shorter than the sheet WH for the work holder. The push-down of the workpiece W by the upper cutting blade C1 at the time of the half-cut is prevented by a lower stripper ST2 fixedly provided in the table surface height of cutting machine 1. The push-up of the workpiece W by the lower cutting blade C2 is prevented by an upper stripper ST1.

Description

technical field [0001] The present invention relates to a method for cutting and processing workpieces (such as wiring substrates, packaging substrates, laminated substrates of capacitors, inductors, resistors, magnetic materials, etc., and laminated electronic components), a cutting processing device, and a cutting device used for the cutting. The workpiece support structure of the processing device. Background technique [0002] In the past, the cutting-off processing device sucks the workpiece through the vacuum-type indexing table, and cuts the workpiece at a predetermined interval with a cutting-off processing machine equipped with an upper cutting blade every time it rotates 90 degrees, and forms the workpiece in a sheet shape (for example, refer to Patent Document 1 ). [0003] In this patent document 1, since the workpiece has flexibility, it is troublesome to handle, so the workpiece is temporarily clamped with an adhesive such as adhesive tape on a metal rectangul...

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Problems solved by technology

[0005] However, generally, the workpiece is temporarily clamped with tape or the like while the peripheral edge of the rectangular frame-shaped workpiece holder is attached to the upper surface, so a gap of approximately the thickness of the workpiece clamping is formed between the table surface and the lower stripper plate, which become the reference plane of the cutting machine.

[0006] Patent Document 2 Therefore, in the cutting process of Patent Document 2, although it is small, the tip of the upper cutting edge presses down on the workpiece through the above-mentioned slit to perform full cutting, so there is a problem that it cannot be cut with high precision at a predetermined pitch.

[0007] In addition, in Patent Document 3, although the upper and lower cutting edges cut simultaneously, since the lower stripper plate is arranged on the back surface of the workpiece between the cutting line, the workpiece is stretched and half-cut while being pushed down. Improvement in cutting accuracy at a predetermined pitch cannot be expected

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