JPH0523940A - Fixture - Google Patents

Abstract

PURPOSE:To get a fixture which is able to position a mounted body such as an auxiliary plate or the like in a vertical specified position to the clamp face so easily in a short time by a simple positioning structure. CONSTITUTION:A clamp face 6a, extending in a direction standing erect to an attached surface a, and a flange part 7 at the base are installed in a double angle plate 3 to be attached to the attached surface 1a of a pallet 1. A through hole 10, extending in the vertical direction, is formed in the flange part 7, and a positioning liner 11 is inserted into this through hole 10. A lower end of this liner 11 is made contact with the attached surface 1a, while an upper end of the liner 11 is projected to the upper part from the flange part 7 making it come into contact with a lower end edge of an auxiliary plate 9 being attached to the clamp face 6a. With this constitution, the auxiliary plate 9 is positioned in a vertical specified position to the clamp face 6a of the angle plate 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-sided scale or a four-sided scale mounted on a mounting surface of a machine tool pallet or table.
The present invention relates to a fixture such as a surface block.

[0002]

2. Description of the Related Art As a conventional attachment of this type, for example, those shown in FIGS. 5 and 6 are known.

In the prior art shown in FIG. 5, a two-sided scale 2 as a mounting tool is mounted on the mounting surface 21a of the pallet 21.
2, the body 22 having a pair of mounting surfaces 23a extending in the upright direction and the flange portion 24 of the base are integrally formed on the scale 22. Then, an auxiliary plate 25 as an object to be attached is attached to both attachment surfaces 23a of the ikele 22, and a work is fixed to the surface of the auxiliary plate 25 via a jig or the like.

Further, a plurality of insertion holes 26 are formed in the mounting surface 23a of the squid 22, and a plurality of insertion holes 27 are also formed in the auxiliary plate 25 so as to correspond to the insertion holes 26. Then, the auxiliary plate 25 is attached to the mounting surface 23.
In the case of attaching to the a, the auxiliary plate 2 is inserted by inserting the positioning pin 28 into the insertion holes 26 and 27 in a state where the insertion holes 26 and 27 are aligned with each other.
5 is positioned at a predetermined vertical position with respect to the mounting surface 23a.

On the other hand, in the conventional device shown in FIG. 6,
A two-sided scale 22 mounted on the mounting surface 21a of the pallet 21 has a body portion 23 having a pair of mounting surfaces 23a,
The base flange portion 24 is divided and formed, and they are assembled and fixed to each other. And
When the auxiliary plate 25 is attached to the mounting surface 23 a, the lower edge of the auxiliary plate 25 is brought into contact with the upper surface of the flange portion 24 so that the auxiliary plate 25 is attached to the mounting surface 2 a.
3a is positioned at a predetermined position in the vertical direction.

[0006]

However, in the conventional device shown in FIG. 5 described above, the auxiliary plate 25 is hung by a crane or the like, and the insertion hole 27 of the auxiliary plate 25 and the insertion hole 26 of the mounting surface 23a. The positioning pin 28 must be inserted while the positioning of the positioning pin 28 is performed. At this time, the auxiliary plate 25 is a heavy object, and a jig is usually attached to the surface thereof (the work is also attached in some cases), so that the work of inserting the positioning pin 28 is troublesome. It was

Further, in the conventional device shown in FIG. 6,
Suspend the auxiliary plate 25 with a crane, etc.
Since the vertical positioning of the auxiliary plate 25 is completed only by placing the auxiliary plate 25 on the second flange portion 24, the positioning work can be easily performed. However, in this prior art, since it is necessary to precisely grind the upper surface and the lower surface of the flange portion 24 to obtain the dimensional accuracy between the upper and lower surfaces thereof, the ikele 22 is divided into the main body portion 23 and the flange portion 24. Since it has to be formed separately and assembled and fixed to each other, the production of the ikeru 22 is troublesome and the cost is high. Incidentally, as shown in FIG. 5, in the case 22 formed by integrally forming the main body portion 23 having the mounting surface 23a and the flange portion 24, when the upper surface of the flange portion 24 is ground, the cutting work is extremely difficult. It is difficult and cannot be finished with high precision. Therefore, as in the case 22 shown in FIG.
Therefore, it is necessary to divide into two parts, the flange part 24 and the flange part 24 so that both upper and lower surfaces of the flange part 24 can be ground regardless of the main body part 23.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to mount an attached body such as an auxiliary plate at a predetermined position in the vertical direction with respect to the mounting surface. Another object of the present invention is to provide a mounting tool that can be positioned easily and in a short time, has a simple positioning structure for that purpose, and can reduce the manufacturing cost.

[0009]

The fixture according to the present invention has the following constitution in order to achieve the above object. That is, in a mounting tool such as a two-sided scale or a four-sided block, which is mounted on a mounting surface of a pallet or a table of a machine tool and has a mounting surface extending in a direction upright with respect to the mounting surface and a flange portion of a base portion. A through hole extending in the vertical direction is formed in the flange portion, and a positioning liner is fitted in the through hole. The lower end edge of the attached object such as an auxiliary plate, a jig or a work, which is attached to the attachment surface, by making the lower end surface of the liner contact the attachment surface and projecting the upper end surface of the liner upward from the flange portion. It is made to contact with.

[0010]

[Operation] When the mounted object is placed on the liner, the upper end surface of the liner abuts the lower edge of the mounted object, and
The lower end surface of the liner is brought into contact with the mounting surface of the pallet or the table, and the mounted body is positioned at a predetermined vertical position with respect to the mounting surface.

[0011]

[Embodiment] An embodiment of a fixture according to the present invention will be described below.
This will be described in detail with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes a pallet which is detachably attached to an MC machine tool or the like, and a plurality of T-grooves 2 are formed on a mounting surface 1a on the upper surface thereof, as clearly shown in FIG. (A tap hole may be formed instead of the T groove). On the mounting surface 1a of the pallet 1, a two-face scale 3 serving as a mounting tool is placed, and a plurality of nuts 4 inserted into the T groove 2 and a plurality of bolts 5 screwed into the nuts 4 are mounted. Is fixed to the mounting surface 1a.

The ikele 3 is a mounting surface 1 of the pallet 1.
a pair of mounting surfaces 6 extending parallel to the direction upright with respect to a
The main body portion 6 having a and the flange portion 7 formed integrally with the base portion thereof are provided, and are formed in a substantially inverted T shape in cross section. An auxiliary plate 9 as an object to be attached is attached to the attachment surface 6a of the scale 3 by a plurality of bolts 8, and a work (not shown) is fixed to the surface of the auxiliary plate 9 via a jig or the like.

The flange portion 7 of the ikele 3 is formed with a pair of through holes 10 extending vertically in the vicinity of both mounting surfaces 6a, and has a large diameter portion 10a on the lower side and a small diameter portion 10b on the upper side. ing. A positioning liner 11 whose vertical dimension is precisely finished is fitted into each through hole 10 from below, and a large-diameter base portion 11a is provided at the lower end thereof and protrudes upward from the flange portion 7. Annular groove 1 on top
1b is formed. A retaining ring 12 such as an O-ring or a snap ring is fitted in the annular groove 11b so that the liner 11 does not come off from the through hole 10.

When the squid 3 is mounted on the mounting surface 1a of the pallet 1, the lower end surface of the liner 11 is brought into contact with the mounting surface 1a and, as clearly shown in FIG.
The base portion 11a of the liner 11 is accommodated and arranged so as to form a clearance within the large diameter portion 10a of the through hole 10, that is, to form a slight interval. Further, when the auxiliary plate 9 is attached to the mounting surface 6a of the ikele 3, the upper end surface of the liner 11 protruding upward from the flange portion 7 abuts on the lower end edge of the auxiliary plate 9, and the auxiliary plate 9 is attached to the mounting surface 6a. It is positioned at a predetermined position in the vertical direction.

Next, the operation of the fixture having the above structure will be described. When the auxiliary plate 9 is mounted on the mounting surface 6a of the pallet 1 with the two-sided scale 3 mounted on the mounting surface 1a of the pallet 1, the auxiliary plate 9 is hung by a crane or the like to form a pair of liners 11. Place on top. The upper end surface of the liner 11 is in contact with the lower end edge of the auxiliary plate 9, and the lower end surface of the liner 11 is in contact with the mounting surface 1a of the pallet 1, so that the auxiliary plate 9 moves vertically with respect to the mounting surface 6a. Positioned in place.

Therefore, unlike the conventional one shown in FIG.
The positioning work of the auxiliary plate 9 can be performed easily and in a short time without performing the troublesome work of inserting the positioning pin into the insertion hole while aligning the insertion hole of the auxiliary plate with the insertion hole of the mounting surface. be able to.

Further, unlike the conventional one shown in FIG. 6, in the state where the main body portion and the flange portion of the ikele are formed separately,
It is not necessary to grind the upper surface of the flange portion, and it is only necessary to grind the upper and lower end surfaces of the liner 11 so that the vertical dimension is precisely finished.
The positioning accuracy of can be obtained. Therefore, the mounting surface 6
By integrally forming the main body portion 6 having a and the flange portion 7, the ikele 3 can be easily manufactured, and the manufacturing cost can be reduced.

The present invention is not limited to the configuration of the above-described embodiment, but can be modified as follows.

(1) The fixture may be mounted on the mounting surface of the table of the machine tool instead of the pallet of the machine tool.

(2) Instead of the two-sided scale 3, a four-sided block or another block may be used as a fixture.

(3) As the mounting tool, a two-sided block or a four-sided block having a plurality of mounting T-grooves or reference holes formed on the mounting surface 6a may be used.

(4) As the auxiliary plate 9, a plate having a plurality of T-grooves or reference holes for attaching a jig or the like formed on its surface may be used.

(5) As an object to be attached, the auxiliary plate 9
Instead of this, a vise for clamping the work, another jig, or the work itself may be attached to the attachment surface 6a.

(6) The liner 11 does not necessarily have the large diameter portion 10.
It is not necessary to provide a, and it may be a straight one having the same diameter as a whole.

[0026]

As described above, in the fixture according to the present invention, the positioning liner is inserted into the flange portion of the base portion, and the lower end surface of the liner is brought into contact with the mounting surface of the machine tool pallet or table. Since it is configured to be in contact with and the upper end surface thereof is projected upward from the flange portion, it is possible to easily and quickly position the mounted body such as the auxiliary plate at a predetermined position in the vertical direction with respect to the mounting surface. it can. Moreover, since the main body portion having the mounting surface and the flange portion of the base portion can be integrally formed, the structure is simple and the manufacturing is easy, so that the manufacturing cost can be reduced.

Further, as described above, since the upper end surface of the liner is located at a position projecting upward from the flange portion, only the chips on the upper end surface of the liner should be removed when replacing the attached object such as the auxiliary plate. Since it is sufficient to remove the chips, it is easy to remove the chips.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a fixture according to the present invention.

FIG. 2 is a front view of the fixture.

FIG. 3 is likewise an exploded perspective view of the fixture.

FIG. 4 is an enlarged front view showing a positioning liner.

FIG. 5 is a cross-sectional view showing a conventional fixture.

FIG. 6 is a cross-sectional view showing another example of a conventional fixture.

[Explanation of symbols]

1 Pallet 1a Mounting surface 3 Two-sided scale as a fixture 6 Main body 6a Mounting surface 7 Flange 9 Auxiliary plate 10 to be mounted 10 Through hole 11 Liner for positioning

Claims (1)

Claim: What is claimed is: 1. A two-sided scale having a mounting surface mounted on a mounting surface of a pallet or a table of a machine tool and extending in a direction upright with respect to the mounting surface, and a flange portion of a base portion. In a fixture such as a four-sided block or the like, a through hole extending vertically is formed in the flange portion,
A positioning liner is inserted into the through hole, the lower end surface of the liner is brought into contact with the mounting surface, and the upper end surface of the liner is projected upward from the flange portion to be attached to the mounting surface. A fixture, which is adapted to be brought into contact with a lower end edge of an object to be attached such as a jig, a work or the like.