JP3103906U - Positioning tool for processing raw nails - Google Patents

Abstract

The present invention relates to a positioning tool for processing a raw claw for processing a raw claw of a chuck for gripping a workpiece, wherein the raw claw can be processed not only on the chucking surface but also on the front side, and the raw claw can be efficiently processed. Provided is a positioning tool for processing a raw nail, which can be positioned quickly.
A support 7 is provided inside a moving direction C of a raw claw 3 and a contact member 8 provided on the support 7 so as to be able to advance and retreat in the moving direction C of the raw claw 3. The raw claw 3 is positioned by bringing the contact member 8 into contact with the end face 3a on the inner side in the moving direction C of the raw claw 3.
[Selection diagram] Fig. 1

Description

  This invention is, for gripping a workpiece, a hydraulic chuck, to a natural nail machining positioners to position the biological pawl when processing pneumatic chuck, a soft jaws of a chuck, such as a scroll chuck.

When processing a workpiece by gripping the workpiece with a chuck attached to a main shaft of a machine tool such as a lathe or the like, the chuck of the raw jaw provided on the chuck is closely contacted with the workpiece. There is a positioning tool for cutting the king surface, and for positioning and fixing the raw nail so as not to move when the raw nail is cut.
As shown in FIG. 6, the positioning tool 25 includes a pin 26, a disk 27, and a bolt 29 screwed into a screw hole 28 formed in the pin 26. , The disc 27 is arranged on the front side of the raw claw 31, and the bolt 29 is screwed into the screw hole 28 of the pin 26 through an arc-shaped long hole 32 formed in the disc 27 to tighten the raw claw 31. In this state, the chucking surface 34 of the raw nail 31 is cut by a cutting tool 35 through a through hole 33 formed in the center of the disk 27 in this state (Japanese Utility Model Publication No. 58-56089). reference).

When cutting the raw claw 31 so that the chucking surface 34 is in close contact with the workpiece, the front surface 36 side of the raw claw 31 may be processed in some cases. Since it is attached to the front surface 36 side, there is a problem that the front surface 36 side of the raw claw 31 cannot be cut.
Also, the raw nail is fixed by positioning the positioning tool made of a disc on the inner side in the moving direction of the raw nail and bringing the outer peripheral surface of the positioning tool into contact with the end face on the inner side in the moving direction of the raw nail. In this method, although the front side of the raw claw can be processed, if there is a gap between the outer peripheral surface of the positioning tool and the raw claw, the outer peripheral surface of the positioning tool can be processed. There is a problem in that a claw must be provided in a gap between the raw nail and the nail, and the operation is very troublesome and complicated, and it takes time to position the raw nail.

  Accordingly, the present invention, the in view of the problems, can also process the front of the natural nail, moreover an object to provide a good efficiency fingernails working positioner which can rapidly position the fingernails.

The technical means taken by the present invention to achieve the above object is a positioning tool for processing a raw claw for processing a raw claw of a chuck for gripping a workpiece.
A support is provided on the inner side in the moving direction of the raw claw, and a contact member is provided on the support so as to be able to advance and retreat in the moving direction of the raw claw, and the contact member is provided on the inner side in the moving direction of the raw claw. The raw claw is configured to be positioned by contacting the end face.
According to this configuration, since the positioning tool is arranged and set on the inner side in the moving direction of the raw claw, the front side of the raw claw can be machined, and furthermore, the contacting member that comes into contact with the end face on the inner side in the moving direction of the raw claw can be processed. Since this member is provided so as to be able to advance and retreat in the moving direction of the raw nail, the raw nail can be positioned efficiently and quickly.

Further, the support is formed in a disk shape, and the support is formed with a concave portion recessed from the outer peripheral surface toward the radially inward side and radially inward from the bottom surface of the concave portion. The contact member is formed of a head that contacts the raw claw and a screw shaft that is screwed into the screw hole of the support. It is preferable that the recess can be accommodated.
According to this configuration, when the positioning tool is stored, the head can be housed in the recess so that the contact member does not protrude from the outer peripheral surface of the support.
The recess is preferably open on both sides in the axial direction of the support.

With this configuration, even when the head is accommodated in the concave portion, the contact member can be easily rotated by pinching the head with a finger.
Further, the support is formed in a disk shape, and it is preferable to form a plurality of supporters having different diameters to form positioning tools having different sizes.
Further, it is preferable that the size of the positioning tool is displayed by changing the number of annular grooves around the axis of the support.
Further, it is preferable that a gripping bar be detachably attached to the center of the support, and the gripping bar is provided so that the positioning tool can be easily arranged on the inner side in the moving direction of the raw claw. Further, by making the gripping bar detachable, the gripping bar can be removed when processing the raw nail, and the gripping bar does not hinder the processing of the raw nail.

Another technical means of the present invention is a positioning tool for processing a raw claw for processing a raw claw of a chuck for gripping a workpiece.
A ring-shaped support disposed on the outer side in the moving direction of the raw claw, and a contact member provided on the support so as to be able to advance and retreat in the moving direction of the raw claw; The raw claw is configured to be positioned by abutting against the end face on one side.
According to this configuration, since the positioning tool is arranged and set on the outer side in the moving direction of the raw claw, the front side of the raw claw can be machined, and furthermore, the contacting member that comes into contact with the end face on the outer side in the moving direction of the raw claw can be processed. Since this member is provided so as to be able to advance and retreat in the moving direction of the raw nail, the raw nail can be positioned efficiently and quickly.

  According to the present invention, the raw nail can be processed not only on the chucking surface but also on the front side, and the raw nail can be positioned efficiently and quickly.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 3 show an embodiment of the present invention, wherein 1 is used to position a raw claw 3 when machining a raw claw 3 of a chuck 2 such as a hydraulic chuck, a pneumatic chuck, or a scroll chuck for gripping a workpiece. It is a positioning tool for processing raw nails.
In the present embodiment, the chuck 2 includes a chuck body 4, three lower claws 5 (master jaws) attached to the chuck body 4, and three raw claws 3 attached to the lower claws 5 respectively. Is illustrated as an example.

The chuck body 4 has a cylindrical outer shape, and is attached and fixed to the front side of a main shaft of a machine tool such as a lathe, for example, so as to be concentric with the axis B of the main shaft.
The lower claws 5 are arranged on the front side of the chuck body 4 at equal intervals in the circumferential direction around the axis B of the chuck body 4 (the axis B of the main shaft of the lathe). 4 is adjustable in the direction C perpendicular to the axis B of the motor.
The raw claw 3 is detachably attached to the front side of the lower claw 5 by a bolt or the like, and moves integrally with the lower claw 5.

The positioning member 1 includes a support 7, three contact members 8 provided on the support 7, and a gripping bar 9 which is detachably attached to the support 7.
The support 7 is formed in a disk shape, and the support 7 is provided with three concave portions 10 which are recessed radially inward from the outer peripheral surface at equal intervals in the circumferential direction. The concave portion 10 is open on both sides in the axial center D direction of the support 7 and radially outward, and has a flat bottom surface 11 and a surface 12 facing the circumferential direction of the support 7.
Further, a screw hole 13 extending radially inward from the bottom surface 11 of each recess 10 is formed in the support 7, and the support 7 is formed radially inward from the outer peripheral side of the support 7. Three screw holes 13 are formed at regular intervals in the circumferential direction of the support 7.

The contact member 8 is formed of a bolt, has a head 14 and a screw shaft 15, and the screw shaft 15 is screwed into the screw hole 13 of the support 7. By rotating about the axis, the contact member 8 can be moved back and forth in the radial direction of the support 7.
Further, by screwing the screw shaft portion 15 of the contact member 8 into the screw hole 13, the head 14 can be housed in the recess 10, and the head 14 of the contact member 8 can be moved from the outer peripheral surface of the support 7. Even if the head 14 is housed in the recess 10, the recess 14 is open in the direction of the axis D of the support 7. It can be easily gripped and rotated.

In the present embodiment, the head 14 of the contact member 8 has six flat surfaces 16 formed at equal circumferential intervals on the outer peripheral surface of the cylinder, and has an intermediate shape between the cylinder and the hexagonal prism. However, the present invention is not limited to this, and may be cylindrical, hexagonal, or other shapes.
At the center of the support 7, a mounting hole 17 formed of a screw hole is formed so as to penetrate in the direction of the axis D. A screw portion 18 screwed into the mounting hole 17 is provided at one end of the gripping bar 9. By screwing 18 into the mounting hole 17, the gripping bar 9 can be detachably attached to the support 7.

In the positioning tool 1 of the present embodiment, a plurality of positioning tools 1 having different sizes are formed by forming a plurality of supports 7 having the same shape of the contact member 8 and the concave portion 10 and different diameters. A wide range of positioning of the raw claw 3 can be performed corresponding to workpieces of various sizes.
On both sides of the support 7 in the direction of the axis D, an annular groove 19 having the axis D of the support 7 as a center is formed.
The annular groove 19 indicates the size of the positioning tool 1. For example, the positioning tool 1 having the smallest diameter is formed with one annular groove 19 (or without the annular groove 19), and the size is large. The size of the positioning tool 1 is displayed by increasing the number of the annular grooves 19 each time it is performed (for example, one annular groove 19 is formed in the positioning tool 1 having the smallest size, Two annular grooves 19 are formed concentrically on the positioning tool 1 on one size of the positioning tool 1 having the minimum diameter, and three annular grooves 19 are formed concentrically on the positioning tool 1 on the one size. Each time the size increases, the number of annular grooves 19 is increased by one).

In order to position the raw claw 3 with the positioning tool 1 of the present embodiment, for example, the raw claw 3 is moved and adjusted in a direction perpendicular to the axis B of the chuck body 4 in accordance with the size of a workpiece to be machined. At the same time, the positioning tool 1 having a size corresponding to the positioning of the raw claw 3 whose position has been adjusted is selected, the gripping bar 9 is attached to the support 7 of the positioning tool 1, and the support 7 is gripped by the gripping bar 9. It is arranged inside the moving direction C of the raw nail 3, and the head 14 of the contact member 8 is arranged so as to face the end face 3 a on the inside of the moving direction C of the raw nail 3 in the moving direction C of the raw nail 3.
Therefore, the contact member 8 can be moved forward and backward in the moving direction C of the raw claw 3, and the head 14 of the contact member 8 is advanced to make the head 14 contact the end face 3 a of the raw claw 3. 3 can be positioned quickly and efficiently, and in this state, the chuck 2 is operated so that the raw claw 3 moves inward in the movement direction C, and the contact member 8 is pressed by the raw claw 3. Is firmly fixed.

Next, the gripping bar 9 is removed from the support 7 and the chucking surface 21 on the inner side in the moving direction of the raw claw 3 and, if necessary, the front surface 22 side of the raw claw 3 are cut according to the workpiece.
The support 7 is not limited to a disk shape, and may be formed, for example, in a triangular shape in a front view.
4 and 5 show a positioning tool 1 according to another embodiment of the present invention, in which a support 7 of the positioning tool 1 is formed in a ring shape, and the raw nail 3 is surrounded by three raw nails 3. It is arranged on the outer side in the movement direction C.

Also in this embodiment, the contact member 8 is formed of a bolt similarly to the above-described embodiment, and has a head 14 and a screw shaft portion 15. The screw shaft portion 15 is screwed into a screw hole 13 formed in the support body 7 in the radial direction, and the contact member 8 is rotated around the axis so that the contact member 8 is rotated. Is movable in the radial direction of the support 8 (movable and retractable in the moving direction C of the raw claw 3).
Further, in the positioning tool 1 of this embodiment, the head 14 of the contact member 8 is advanced and the head 14 is brought into contact with the end face 3b on the outer side in the moving direction of the raw claw 3, thereby obtaining the raw claw. In this state, the chuck 2 is operated so that the raw claw 3 moves outward in the movement direction C, and the contact member 8 is pressed by the raw claw 3. The raw nail 3 is firmly fixed.

Next, the chucking surface 21 on the outer side in the moving direction C of the raw claw 3 and, if necessary, the front surface 22 side of the raw claw 3 are cut in accordance with the workpiece.
Even in the positioning tool 1 of this embodiment, by forming a plurality of supports 7 having different diameters, a plurality of positioning tools 1 having different sizes are formed, and a positioning tool having a size corresponding to the size of the workpiece is selected. To use.
In the above-described embodiment, the positioning tool 1 used for the three-jaw chuck is illustrated. For example, if the positioning tool 1 is used for a two-jaw chuck, two contact members 8 are provided. The contact members 8 are provided corresponding to the number of the raw claws 3 of the chuck, such as providing four contact members 8 if the contact member 8 is used for a four-jaw chuck.

Shows the positioning device according to an embodiment of the present invention, is a side view showing the (a) is a front view showing a state of attaching the positioning fixture to the chuck, (b) is attached with an positioner to the chuck. (A) is a front view of the positioning tool which concerns on one Embodiment of this invention, (b) is an expanded sectional view of the A section. It is a side sectional view of the positioning tool concerning one embodiment of the present invention. Shows the positioning device according to another embodiment of the present invention, (a) represents a front view showing a state of attaching the positioning fixture to the chuck, (b) is an enlarged sectional view of E part. FIG. 4 is a partial cross-sectional side view showing a state in which a positioning tool according to another embodiment of the present invention is attached to a chuck. 1A is a partial cross-sectional side view showing a state where a positioning tool is attached to a chuck, and FIG. 1B is a perspective view of the positioning tool.

Explanation of reference numerals

2 chuck 3 raw claw 3a end face on the inner side in the moving direction of raw claw 7 support 8 contact member 9 gripping rod 10 concave portion 11 bottom surface 13 screw hole 14 head 15 screw shaft portion 19 annular groove C moving direction of raw claw D support Shaft center

Claims (7)

A raw nail processing positioning tool for positioning the raw nail (3) when processing the raw nail (3) of a chuck (2) for gripping a workpiece,
A support (7) arranged on the inner side in the moving direction (C) of the raw claw (3), and a contact provided on the support (7) so as to be able to advance and retreat in the moving direction (C) of the raw claw (3). A member (8) is provided, and the contact member (8) is brought into contact with the end surface (3a) on the inner side in the moving direction (C) of the raw claw (3) to position the raw claw (3). A positioning tool for processing a raw nail, wherein the positioning tool is configured.   Support (7) is formed in a disk shape, the recess with the said support (7), recesses which are recessed toward the outer peripheral surface thereof in the radial direction inner side (10) is formed ( 10) bottom surface (threaded hole toward the 11) radially inwardly (13) of is formed, contact member (8) includes a head (14) which brought into contact with the natural nail (3), the support ( threaded shaft portion to be screwed into the screw hole (13) 7) (constructed from a 15), received in the recess (10) of the head of the abutment member (8) (14) support (7) The positioning tool for processing a raw nail according to claim 1, wherein the positioning tool is enabled.   Recess (10) is the axis (D) fingernails machining positioning tool according to claim 2, characterized in that there is a direction on both sides to the open-like support (7).   Support (7) is formed in a disc shape, characterized in that the different by a multiple form diameter of the support (7), and to form different sizes of the positioning device of (1) The positioning tool for processing raw nails according to claim 1.   By changing the number of the axis of the support (7) an annular groove (19) around the (D), according to claim 4, characterized in that so as to display the size of the positioning device (1) Positioning tool for processing raw nails.   A positioning tool for processing raw nails, comprising: a gripping bar (9) detachably attached to a center portion of a support (7). A raw nail processing positioning tool for positioning the raw nail (3) when processing the raw nail (3) of a chuck (2) for gripping a workpiece,
A ring-shaped support (7) arranged on the outer side in the moving direction (C) of the raw claw (3), and provided on the support (7) so as to be able to advance and retreat in the moving direction (C) of the raw claw (3). The contact member (8) is provided, and the contact member (8) is brought into contact with the end surface (3b) on the outer side in the moving direction (C) of the raw claw (3) to position the raw claw (3). A positioning tool for processing raw nails, wherein

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