JPH02262954A - Cutting method - Google Patents

Abstract

PURPOSE:To stabilize cutting accuracy and to suppress increase of a cutting width and flagging on the cutting start end side by installing regulating plates before and behind the cutting line of the substrate to be processed or on the cutting start end side and forming a guide groove which guides a cutting tool or a cutting auxiliary tool in the cutting direction in each regulating plate. CONSTITUTION:Regulating plates 3 and 4 are installed in which guide grooves 9 for regulating a cutting tool 2 or a cutting auxiliary tool are provided before and behind the cutting line of the substance 6 to be processed or at the cutting start end side. At this time, a guide groove 9 with a width smaller than the width of the cutting auxiliary tool is formed deeper than that at the cutting finish position of the substance 6 to be processed in the cutting depth direction. Hereby, both ends or the cutting start end side of the cutting tool 2 or the cutting auxiliary tool oscillating laterally can be regulated. Accordingly, the cutting tools 2 can be cut in at the accurate position, and stable cutting accuracy can be obtained, and at the same time increase and flagging of the cutting width at the cutting start end side can be regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cutting method for cutting a workpiece using a cutting tool or a cutting auxiliary tool.

Conventional cutting methods that use a cutting tool or cutting auxiliary tool include, for example, a cutting method that uses an inner circumferential cutter as a cutting tool, and a wire cutting method that uses a wire as a cutting auxiliary tool and cuts with slurry (a mixture of abrasive grains and processing oil). There is one method. In both cases, the workpiece is fixed to a mounting table, and the workpiece is cut using an inner circumferential cutter, wire, and slurry.

Problems to be Solved by the Invention In conventional cutting methods, warping and waviness of the cut surface of the workpiece occur due to deflection and lateral vibration of the cutting tool or cutting auxiliary tool, and warping and waviness of the cut surface of the workpiece occur at the starting end or ending end of cutting. As a result of strong curvature, it may require more secondary machining to remove these warps or undulations, or the precision of the cutting position may deteriorate due to droop on the cutting start end, increased cutting width, and variations in the cutting position. There are problems that cannot be obtained.

These problems are caused by misalignment between the direction of the cutting depth and the direction of cutting force of the cutting tool and cutting auxiliary tool due to lateral runout of the cutting tool and cutting auxiliary tool, fluctuations in cutting resistance, and the like.

In view of this point, it is an object of the present invention to provide a cutting method that does not cause the above problems.

Means for Solving the Problems The present invention provides a means for suppressing lateral vibration of a cutting tool or a cutting auxiliary tool during cutting, by installing a cutting tool or a cutting auxiliary tool in front of or behind the cutting line of a workpiece, or on the starting end side. A regulation plate with guide grooves is installed to regulate auxiliary tools.

As a means for further suppressing lateral vibration of the cutting tool or cutting auxiliary tool during cutting and preventing misalignment between the direction of cutting depth and the direction of cutting force, the cutting tool or cutting auxiliary tool is attached to the regulating plate in the cutting direction. The guiding groove is formed to have a groove width smaller than the width of the cutting tool or the cutting auxiliary tool, and a groove depth deeper than the cutting end position of the workpiece.

According to the present invention, a regulating plate is provided with a guide groove for regulating a cutting tool or a cutting auxiliary tool before and after the cutting line of a workpiece, or on the starting end side, and the cutting tool is attached to this regulating plate. Or, by forming a guide groove with a width smaller than the width of the cutting auxiliary tool deeper than the cutting end position of the workpiece in the cutting depth direction, it is possible to prevent sideways swinging of the cutting tool or both ends or the cutting start end of the cutting auxiliary tool. side can be regulated.

As a result, the lateral runout of the cutting tool or cutting auxiliary tool is reduced, making it possible to cut at an accurate position and achieving stable cutting accuracy. Since the cutting force always acts on the center of the groove in opposition to each other, the direction of the cutting depth and the direction of the cutting force always match, allowing stable cutting guidance until the end of cutting, cutting the workpiece properly and with high precision. be able to.

Embodiment The drawing shows an embodiment in which the present invention is applied to a wire saw. The base 7 and the workpiece 6 are adhered in order to the upper surface of the central part of the fixture 5, which has a convex shape when viewed from the side.
~1. Regulating plates 3.4 whose top surfaces are positioned higher by Qmm are adhered to the upper surfaces of both sides of the first-stage fixture 5. The regulating plate 3.4 was made of cuttable ceramics and had a thickness of 4 mm or less. On the left and right regulating plates 3.4 on the cutting line, guide grooves 9 are formed in parallel with the number of pieces to be cut using a guising tool in the cutting depth direction and are 10 to 10 cm wider than the wire diameter and deeper than the bonding surface of the workpiece 6.

After these preparations are completed, the workpiece 6 is fixed on the stage section 8 at right angles to the wire 2, and the wire 2 is set at the center of the guide groove.The stage section 8 is then raised and the regulating plate 3.4 is placed on the wire 2.
The cutting start point is set close to the cutting point, and the mixture of abrasive grains and processing oil flows out onto the workpiece.The wire 2 is caused to travel back and forth, and the stage part 8 is raised continuously to perform cutting, and the depth of the guide groove 9 and Make equal or greater incisions to finish cutting.

Effects of the Invention With the above configuration, stable cutting accuracy can be obtained, the increase and sagging of the cutting width on the cutting start end side can be suppressed, and the direction of the cutting depth and the direction of the cutting force always match, resulting in cutting. High-precision cutting is possible by preventing strong curvature on the starting end side or ending end side and warping or waviness of the cut surface.

[Brief explanation of drawings]

The figure is a perspective view showing an embodiment in which a misfire is applied to a wire saw. 111. Mixed liquid of abrasive grains and processing oil, 2. ,, wire, 38
0. Right regulation plate, 4. ,, left regulation plate, 5. ,, fitting, 6
゜0. Workpiece? ,,Base,8. ,, stage section, 916. Guide groove.

Claims (1)

[Claims] In a method of cutting a workpiece using a cutting tool or a cutting auxiliary tool, a regulating plate is installed before and after the cutting line of the workpiece, or on the cutting start end side, and this regulating plate is connected to the cutting tool or cutting auxiliary tool. A guide groove is formed to guide the cutting auxiliary tool in the cutting direction, the groove width is smaller than the width of the cutting tool or the cutting auxiliary tool, and the groove depth is deeper than the cutting end position of the workpiece. Alternatively, a cutting method characterized in that the workpiece is cut by relatively moving a cutting auxiliary tool along the guide groove.