JPS618208A - Mounting jig - Google Patents

Abstract

PURPOSE:To facilitate fastening and demounting of a work independently of the distribution of the dimension of thickness of the work by pressing a swing tool through the contact between the conical top edges of three slidable pins and a spherical body and closely attaching a fastening metal onto the work. CONSTITUTION:When a work 1 is mounted, a pressing tool 11 is loosened to contract a slidable pin 10 inwardly, and a fastening metal 18 is allowed to turn leftward around a supporting pin 17 and stop by an annular member 20. The inside diameter 3 of the work 1 is inserted into a faucet 5, and the member 20 is turned leftward, and also the fastening metal 18 is turned leftward, and the falling-off of the work 1 is prevented. When the pressing tool 11 is turned rightward, the pressing tool 11 is advanced by an inside screw 12 and presses a spherical body 13 and pushing-spreads the slidable pin 10 outward to press a swing tool 16, and therefore, the turn around an installation pin 14 is formed, and the fastening metal 18 closely attaches the edge surface 2 onto a jig independently of the distribution of the dimension C of thickness of the work 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jig, and more particularly to a mounting jig suitable for mounting a workpiece whose end face and inner or outer diameter have been machined to the jig.

For example, when turning a workpiece, a turning jig is relatively rarely used in the first step, but a turning jig is used in most cases in the second and subsequent steps.

FIG. 1 is a front view of a turning jig that has conventionally been widely used, and FIG. 2 is a cross-sectional view taken along line AA in FIG.

Since the end face 2 and inner diameter 3 of the workpiece 1 have been processed in the first step, the end face 2 is brought into close contact with the substrate 4 to determine the lengthwise dimension, and the inner diameter 3 is inserted into the spigot 5 to determine the axis. This workpiece 1 is held down with the presser foot 6, and the bolt 7 is tightened to fix the workpiece 1.

In other words, when attaching the workpiece 1' to the turning jig, insert the workpiece 1 into the spigot 5, rotate the three presser feet 6,
The installation is completed by tightening the bolts 7. Also, after completing the machining, follow the steps in the reverse order of Work 1.
from the turning jig.

As described above, although the conventional turning jig has an extremely simple structure, the attachment and detachment of the workpiece 1 is extremely complicated, which is a major factor that hinders the improvement of machining efficiency.

An object of the present invention is to provide a mounting jig that not only allows workpieces to be mounted and removed with extremely simple operations, but also allows uniform tightening force to be applied even when the heights of the three locations are different. There is something to do.

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 3 is a front view of the mounting jig according to the present invention, and FIG. 4 is a sectional view taken along line T3-B in FIG.

It has a spigot 5 concentrically with the rotational axis 8 of the plate 4, and has three clamp mounts 9 fixed concentrically to the rotational axis 8 and at equal intervals,
This clamp mount 9 has a sliding pin 1 facing the rotation axis 8.
0 is inserted through the sliding bottle 10, and the tip of the sliding bottle 10 is conical.
The spigot 5 has an internal thread 12 into which the presser 11 is screwed, and the sliding pin 10
A sphere 13 is inserted between the tip of the presser shell 11 and the presser shell 11.

On the other hand, a mounting pin 14 is arranged on the clamp mounting base 9 in a direction perpendicular to the sliding pin 10 and perpendicular to the rotation axis 8. A swinging tool 16 is supported that contacts the rear end of the sliding bin 10, and a support pin 17 is disposed on this swinging tool 16 in parallel to the rotation axis 8. A clamp 18 is attached to this support pin 17. The clamp 18 is rotatably inserted into the support pin 17 and the deflection pin 19 is attached to the outside of the support pin 17.
is fixedly installed, and has an annular member 20 that engages with three of the deflection bins 19.

Next, the effects of the above configuration will be explained.

When installing workpiece 1 on the turning jig, first
1 to contract the sliding bottle 10 inward, and then loosen the annular member 2.
Rotate 0 counterclockwise. Then, the clamp 18 is attached to the support pin 1
It rotates counterclockwise around 7 and stops.

Here, when the inner diameter 3 of the work 1 is inserted into the spigot 5 and the annular member 20 is rotated clockwise, the clamp 18 is also rotated clockwise to prevent the work 1 from falling off.

Then, when the presser 11 is rotated clockwise, the presser 11 is advanced by the internal screw 12 and presses the sphere 13. This sphere 13 contacts the conical tips of the three sliding bottles 10,
Push the sliding bottle 10 outward. Since the rear end of this sliding bin 10 presses the swinging tool 16, it rotates around the mounting bin 14.

Therefore, the clamp 18 attached to the swinging tool 16 by the support pin 17 presses the workpiece 1, brings the end face 2 into close contact with the turning jig, and the attachment of the workpiece 1 is completed.

When removing the workpiece 1 from the turning jig, the workpiece 1 can be removed by the reverse procedure to the above-mentioned procedure.

Since only the end face 2 and inner diameter 3 of the above-mentioned threaded workpiece are machined in the first step, the thickness C of the portion of the workpiece 1 to be tightened with the clamp 18 usually varies by 1 to 2 m.

However, the mounting jig according to the present invention has three sliding bins 1.
Since the tip of 0 is conical and the 1 sphere 13 is in contact with this conical part, even if the C dimensions of 3-5= parts are not equal, the three clamps 18
Since a uniform pressing force is applied to the parts, safety and good dimensional accuracy can be maintained.

Although three clamps 18 are used in this embodiment, the present invention is not limited to this, and the same purpose can be achieved even with two clamps by slightly changing the structure.

Further, the annular member 20 can achieve its purpose by engaging the three deflection pins 19, and may be C-shaped instead of ring-shaped. In case of C type, installation of work 1,
It is often preferable to remove it.

Further, in this embodiment, the function as a turning jig has been described, but it can be widely used not only as a turning jig but also as a processing jig such as a milling machine or a drilling machine, or as an inspection jig.

As is clear from the above explanation, the mounting jig according to the present invention rotates the three clamps 18 at the same time using the annular member 20, and simultaneously tightens at three locations using the one presser 11. Even if the C6 dimension of the workpiece 1 is not the same, an equal tightening force can be obtained.

Therefore, it has many excellent effects such as improved dimensional accuracy, improved work efficiency, and improved safety.

[Brief explanation of drawings]

Fig. 1 is a front view of the conventional product, Fig. 2 is a sectional view taken from A to A in Fig. 1, Fig. 3 is a front view of the mounting jig according to the present invention, and Fig. 4 is a sectional view taken along B-B in Fig. 3. It is a diagram. 4: Board 5: Inlet - 8: Rotation shaft center 9: Clamp mount 10: Sliding pin 11: Holder 12: Internal thread 13:
Sphere 14: Mounting bottle 16: Swing tool 17: Support pin
18: Clamping 19: Offset bottle 20: 1il I-shaped member or more

Claims (1)

[Claims] It has a spigot concentrically with the rotation axis of the board, and three clamp mounts are fixed concentrically and equally spaced with the rotation axis, and the clamp mounts have a sliding pin toward the rotation axis. The tip of the sliding pin has a conical shape and projects into the interior of the spigot, and the spigot has an internal thread into which the presser is screwed, and the tip of the slide pin has a conical tip and protrudes into the spigot, and the spigot has an internal thread into which the presser is screwed. A sphere is inserted into the clamp mount, and a mounting pin is arranged in the direction perpendicular to the sliding pin and perpendicular to the axis of rotation, and the mounting pin has the above-mentioned sliding member biased inwardly. A swinging tool that contacts the rear end of the pin is supported, a support pin is disposed on the swinging tool parallel to the rotation axis, a clamp is rotatably inserted into the support pin, A mounting jig characterized in that the clamp has deflection pins fixed outside the support pin and an annular member that engages with the three deflection pins.