JP5546351B2 - Cutting tools - Google Patents

Description

  The present invention relates to a cutting tool attached to a processing machine that attaches and processes a plurality of cutting tools to a tool post.

  As a turret for attaching tools such as tools used in automatic lathes, a comb blade cutter that, as shown in FIG. 4, attaches a plurality of cutting tools in a comb-tooth shape perpendicular to the spindle and sequentially processes with each cutting tool. The stand is known.

  In such a comb-shaped tool post, when attaching a cutting tool to the tool post, a blade tip alignment operation for aligning the position of the cutting blade is necessary, and there is a problem that the operation is complicated.

  Therefore, Patent Document 1 discloses that the edge alignment operation of the tool body can be omitted by screwing a positioning member extending over two side surfaces of the tool body and using it as a stopper.

JP 2009-083073 A

  However, in the cutting tool of Patent Document 1, since the screw hole is a long hole, the positioning operation cannot be completely omitted, and there is a problem that it takes time to finely adjust the screwing position. Further, in this configuration, since the screw is fixed with only one screw, the screw fixing member is slightly tilted, and there is a problem that accurate positioning cannot be performed.

  An object of the present invention is to provide a cutting tool that is excellent in work efficiency and processing accuracy, without the need for repeating complicated blade edge alignment work for the problems described above.

The cutting tool of the present invention includes a tool body having a cutting edge at a tip thereof, and a positioning member for determining a mounting position of the tool body, and the positioning members are attached to a plurality of the tool bodies by screws. A cutting tool for detachably attaching each tool body to a tool rest at a position where the cutting blade of each tool body protrudes a predetermined length, wherein the positioning member is a plate having a rectangular main surface. And a plurality of screw holes are provided in a non-contrast position with respect to the rectangular rotation center, and are screwed to the tool body with two or more of the plurality of screw holes. It is what.

Here, that the screw holes are two arranged is desirable in terms of maintaining the strength of the positioning member, a position of the oblique 45 ° to the sides of the front SL are two screw holes the positioning member The formation can increase the variation of the position where positioning is possible, and several kinds of protrusion lengths differ depending on the processing machine, but it is desirable in that it can be applied to most processing machines.

ADVANTAGE OF THE INVENTION According to this invention, when attaching the tool main body to a tool post, the complicated positioning operation | work of a cutting blade can be simplified, and the position shift of a cutting blade can be suppressed, and it becomes a cutting tool excellent in work efficiency and processing accuracy.

(A) It is a schematic side view which shows an example which attached the cutting tool of this invention to the tool post, (b) It is a disassembled perspective view of the cutting tool attached to (a). It is a schematic diagram which shows an example of the positioning member of FIG. 1, and the screw hole of a tool main body, (a) Basic structure, (b) The structure when (a) is rotated 180 degrees, (c) (a) is turned over This is a configuration when rotated by 90 °, and a configuration when rotated (270) by turning over (d) and (a). It is a schematic diagram which shows another example of the positioning member of FIG. 1, and the screw hole of a tool main body, (a) Basic composition, (b) The structure when (a) is rotated 90 degrees, (c) (a) This is a configuration when rotated 180 degrees, and a configuration when (d) and (a) are rotated 270 degrees. It is a side view which shows the example of attachment of the conventional cutting tool.

  The cutting tool of the present invention will be described with reference to FIG. 1 (a), a schematic side view showing an example attached to the tool post, and (b) an exploded perspective view of the cutting tool attached to (a).

  The cutting tool 1 in FIG. 1 includes a tool body 2 having a cutting edge 3 at the tip, a positioning member 4 for determining the mounting position of the tool body 2, and a plurality of tools for mounting the positioning member 4 on the tool body 2 (see FIG. 1). 1 is composed of two screws 5, and according to FIG. 1 (b), the tool body 2 has a throw-away tip 6 having a cutting edge 3 attached to the tip thereof by a screw 5 ′. .

  Moreover, as shown to Fig.1 (a), by making the rear-end part of the positioning member 4 of each cutting tool 1 contact each tool post 9, each cutting blade 3 of the some cutting tool 1 is predetermined | prescribed. It is attached to the tool post 9 at a position that protrudes the length and is aligned at the same height. Each cutting tool 1 is sequentially used under program control.

Here, the positioning member 4 is a plate having a rectangular main surface, and a plurality of screw holes 7 are provided at positions that are not contrasted with respect to the rectangular rotation center O. The tool body 2 is screwed with two or more screw holes 7.

  Since the protruding length of the cutting tool 1 from the tool post 9 varies depending on the processing machine, it is necessary to change the protruding length for each processing machine. In addition, this protrusion length can be classified into 3-4 types at most even if a processing machine changes. According to the present invention, the protrusion length is controlled to a position suitable for each of the above three to four kinds of protrusion lengths by rotating or turning the positioning member 4 provided with two or more screw holes 7. Can do. Therefore, the configuration shown in FIG. 1 makes it possible to easily perform the complicated positioning operation of the cutting blade 4 when attaching the cutting tool 1 to the tool post 9, and to suppress the positional deviation of the cutting blade 3, thereby improving the work efficiency and processing accuracy. It becomes the cutting tool 1 which is excellent in.

In FIG. 2, two screw holes 7 are provided, and according to this, the strength of the positioning member 4 can be maintained. Moreover, the main surface of the positioning member 4 is a rectangle which consists of a rectangle or a square . Further, the positioning member 4 has two screw holes 7 formed at an angle of 45 ° with respect to the side of the positioning member 7. It is desirable in that it is compatible with most processing machines.

Further, the position of the screw hole 7 of the attachment member 4 is not limited to the configuration shown in FIG. 2, and the two screw holes 7 are formed at positions parallel to the sides of the positioning member 4 as shown in FIG. 3. It may be. In order to correspond to this configuration, three screw holes 8 of the tool body 2 are formed. 2 and 3, symbols A, B, C, and D are given to each side of the positioning member 7 for convenience in order to facilitate understanding.

  Furthermore, since the positioning member 4 is plate-shaped, even if the adjacent cutting tools 1 and 1 are close to each other, the positioning member 4 does not become an obstacle, and is small used for a small automatic lathe for processing small parts and precision parts. It can also be applied to a comb tool post.

  In the present embodiment, the case where the cutting tool 1 is attached to the comb-shaped tool rest 9 has been described as an example. However, various tool rests such as a turret in which a plurality of tools are arranged radially to perform swivel indexing are described. Can be applied to. Further, the cutting tool is not limited to this, and can be applied to a brazing tool or the like. Further, instead of the cutting tool, it is conceivable to divert it to a pull holder (manufactured by Alps Tool Co., Ltd .: PT-70) used for automatically supplying a work material. Moreover, it is also conceivable to divert the work material to a pusher used for making the reference protrusion amount. In this case as well, the positioning operation can be shortened.

DESCRIPTION OF SYMBOLS 1 Cutting tool 2 Tool main body 3 Cutting blade 4 Positioning member 5, 5 'Screw 6 Throw away tip 7, 8 Screw hole 9 Tool post

Claims (3)

A tool body having a cutting edge at the tip, and a positioning member for determining a mounting position of the tool body,
A cutting tool in which the positioning member is attached to a plurality of the tool bodies by screws, and each tool body is detachably attached to the tool post at a position where the cutting blade of each tool body protrudes a predetermined length. There,
The positioning member has a plate shape whose main surface is rectangular , and a plurality of screw holes are provided in a non-contrast position with respect to the rectangular rotation center, and two of the plurality of screw holes are provided. A cutting tool screwed to the tool body with the above screw holes.   The cutting tool according to claim 1, wherein two screw holes are provided. Cutting tool according to claim 2 in which before Symbol Two screw holes are formed in an oblique position 45 ° to the sides of the positioning member.

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