JP2008023654A - Slide guide part working method of press die and working tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide guide part working method of a press die working a cutting surface in a state near to a flat surface and high in productivity and a working tool. <P>SOLUTION: A vertical cutting tool 10 furnished with a tip of a knife edge of a protruded curve is installed on a main shaft head of a working machine such as a machining center under this slide guide part working method. An erected surface of a slide guide part 2 in the vertical direction projected to a side surface of the press die 1 by lowering motion is cut and worked in large pitching width by this vertical cutting tool 10 without rotation. The vertical cutting tool 10 fastens the tip the knife edge of which makes the protruded curve in a direction of a circumference 4 of a lower end surface of a shank 3. The curvature radius R of the tip knife edge is set to 80mm to 400mm. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a press-type slide guide portion processing method and a processing tool.

  As shown in FIG. 7, the slide guide portion 2 in the vertical direction protrudes from the side surface of the press die. In order to finish the vertical surface of the slide guide part 2, when there is no obstacle around the machining part, front milling is performed using a right angle head, and there is an obstacle around the machining part. When the position 2 is shallow, the end mill is used for lateral feed processing, and when the slide guide part 2 is deep, the right angle head is used for front milling and end milling, and the lateral feed processing is used. Therefore, as shown in FIG. 7, the vertical milling is performed using the vertical mill 12.

Although there is no particular problem in cross feed processing using front milling and end mills using the above right angle head, vertical plane machining using vertical mill 12 shown in FIG. Therefore, as shown in FIG. 5A, since the concave curved surface of R31.5 mm is processed with a fine pitch P1 of 0.7 mm, the processing time is long and the productivity is deteriorated. Had.
JP 2004-249387 A

  It is an object of the present invention to provide a press-type slide guide part processing method and a processing tool that process a cutting surface in a state close to a flat surface and have high productivity.

  In order to achieve this object, the present invention is a method of processing a vertical slide guide portion projecting from a side surface of a press die as described in claim 1, wherein a convex cutting edge is provided on a processing machine. A press type slide characterized in that a vertical cutting tool having a tip is mounted, and the vertical surface of the slide guide portion is cut with a large pitch width by a downward movement without rotating the vertical cutting tool. It is a guide part processing method.

  The vertical cutting tool according to claim 2, wherein the vertical cutting tool performs a cutting process by a descending motion without rotating the vertical surface of the vertical slide guide portion projecting in four directions on the four sides of the press die. This is a press-type slide guide processing tool characterized in that a tip whose cutting edge forms a convex curve is fixed in four circumferential directions.

  The press-type slide guide part processing tool according to claim 2, wherein the convex curve R of the tip edge is set to 80 mm to 400 mm.

  According to the present invention, in the machining of the press-type slide guide portion, the machining feed speed is greatly increased by cutting the vertical axis of the vertical cutting tool as compared with the conventional rotary cutting, and the cutting edge of the large convex curve Because it is a vertical cutting tool equipped with a tip, it can cut a large concave surface with a large pitch width, and it can process in a short time with a machined surface close to a flat surface, resulting in a highly productive machining operation. Has the effect.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a press die, and reference numeral 2 denotes a vertical slide guide portion protruding from the side surface of the press die 1. The present invention finishes the elevation surface of the slide guide portion. The processing method is such that a vertical cutting tool 10 having a convex cutting edge tip is mounted on a processing machine (see FIG. 6), and the vertical cutting tool 10 is moved downward in the vertical axis Z direction without rotating. The vertical surface of the slide guide portion 2 is cut with a large pitch width.

  As shown in FIGS. 2 and 3, the vertical cutting tool 10 includes a shank 3 and a truncated cone-shaped tip mounting body 4 integrally formed at the lower end thereof, and a lower end surface of the tip mounting body 4. This is a structure in which the chip 5 is fixed.

  The tip 5 has a shape in which the cutting edge 5a has a convex curve R as shown in FIG. 4, and the convex curve R is 80 mm to 400 mm.

  As shown in FIG. 3, the tip 5 is fixed to the lower end surface of the tip attachment body 4 in the four circumferential directions on the XY axis passing through the center 0. This is because the slide guide portion 2 normally protrudes from the side surfaces in the four directions of the press die 1 and has different processing conditions. Therefore, the chip 5 corresponding to the processing conditions of the slide guide portions 2 on the four side surfaces is fixed in the four circumferential directions on the XY axis.

  A known machining center shown in FIG. 6 is used as a processing machine on which the vertical cutting tool 10 is mounted. That is, a spindle head 8 that moves up and down in a vertical direction on a column 7 that stands upright on a bed 6, a table 11 that rotates and moves in the XY direction in a plane on the bed, and a numerical controller 9 are provided. The vertical cutting tool 10 is mounted on the spindle head 8 in the vertical axis direction. The spindle head 8 on which the vertical cutting tool 10 is mounted is vertically moved and controlled in the vertical direction by the numerical control device 9, and the vertical cutting tool 10 is rotationally indexed by the numerical control device 9.

  The press die 1 is carried onto the table 11 of the processing machine, and one of the four side surfaces is positioned in the direction of the spindle head 8 and at the same time, the vertical cutting tool 10 is processed by the processing conditions of the slide guide portion 2 to be processed. The tip 5 corresponding to 1 is rotated and indexed, and the spindle head 8 is moved downward to cut the vertical surface of the slide guide portion 2 by the tip 5.

  When the machining of one slide guide portion 2 of the four side surfaces is completed, the next one surface is positioned in the direction of the spindle head 8 and the vertical cutting tool 10 is simultaneously machined by the machining conditions of the slide guide portion 2 to be machined. The tip 5 corresponding to 1 is rotated and indexed, and the spindle head 8 is moved downward to cut the vertical surface of the slide guide portion 2 by the tip 5. In this way, the slide guide portions 2 on the side surfaces in the four directions are sequentially processed.

  Accordingly, the slide guide portion 2 cut by the vertical cutting tool 10 of the present invention is cut into a large concave curved surface with a large pitch width by the tip 5 having a convex edge 5a. Incidentally, when the convex curve R of the blade edge 5a is 200 mm, the pitch P2 is 4.0 mm as shown in FIG.

  That is, when cutting a concave curved surface of R31.5 mm shown in FIG. 5A with a conventional vertical mill 12 with a fine pitch P1 of 0.7 mm, and a concave of R200 mm shown in FIG. 5B of the present invention. When cutting with a curved surface, if the cusp height C (2 μm) is the same, the pitch R2 of the present invention with a large R will be larger (rougher) with 4.0 mm, which will improve productivity and make the machined surface flat. Ensure close state.

  Further, the improvement in productivity according to the present invention is that machining by the vertical axis movement of the vertical cutting tool 10 is performed, so that the machining feed rate is significantly faster than the conventional rotary cutting, and the machining time is remarkably shortened. .

  As described above, in the present invention, since the vertical cutting tool is cut by a downward movement without rotating, the convex curve R value of the tip 5 can be freely set within a range of 80 mm to 400 mm, and in four directions. By providing the tip 5, the rotation can be indexed to the tip 5 corresponding to the processing conditions of the four-direction slide guide portion 2, so it is necessary to replace the tool with a tool corresponding to the processing conditions of the four-direction slide guide portion 2. In this way, it is possible to improve the efficiency of machining operations.

  In addition, since the present invention can use the same four-direction machining data as that of the conventional rotary tool as it is, it does not require a new investment such as introduction of CAM and has an economic effect.

Side view of essential parts showing processing method of the present invention Side view of main part of vertical cutting tool of the present invention Bottom view of FIG. The perspective view of the tip of the conventional vertical cutting tool of the present invention Comparison of cutting surface with conventional vertical mill and cutting surface with vertical cutting tool of the present invention Side view showing an example of a processing machine using the present invention Side view of the main part showing cutting with a conventional vertical mill

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Press type | mold 2 Slide guide part 3 Shank 4 Tip attachment body 5 Tip 5a Cutting edge 6 Bed 7 Column 8 Spindle head 9 Numerical control apparatus 10 Vertical cutting tool 11 Table

Claims (3)

  A method of processing a vertical slide guide portion protruding on a side surface of a press die, wherein a vertical cutting tool having a convex cutting edge tip is mounted on a processing machine without rotating the vertical cutting tool. A press-type slide guide part machining method, wherein the vertical surface of the slide guide part is cut with a large pitch width by a downward movement.   A vertical cutting tool that cuts by vertical movement without rotating the vertical surface of the vertical slide guide that protrudes from the four side surfaces of the press die, and the cutting edge protrudes in the four circumferential directions of the lower end surface of the shank. A press-type slide guide part machining tool, characterized in that a curved tip is fixed.   3. The press-type slide guide part machining tool according to claim 2, wherein the convex curve R of the tip edge is 80 mm to 400 mm.

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