JPS6012675Y2 - Centering jig device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a centering jig device for attaching a workpiece to a pallet.

Generally, as shown in Figure 1, when performing turning processing, etc., pallet b with workpiece a attached is set on turntable C, but machining allowance (black skin) is avoided as much as possible.
It is preferable to make the parts even.

Therefore, in the past, as shown in Fig. 2, a separate turntable d was provided, a scribing needle e was brought into contact with the top surface of the workpiece, and while the workpiece a was rotated slowly, the tilting of the workpiece a was checked, and the machining allowance of the top surface of the workpiece was corrected by the jacking. The aim was to achieve equality.

However, since the turntable d was provided separately, it was expensive.

The present invention was devised in view of the above circumstances, and its purpose is to eliminate the need to use a separate turntable.

Hereinafter, the present invention will be explained with reference to FIG. 3 and subsequent figures.

In the drawing, 14 is a pallet, and the upper surface of the pallet 14 has a recess 15.

Further, a tilt correction device 17 such as a jack is fixedly installed on the upper surface of the pallet 14.

2 is a centering jig, and this centering jig 2 includes a body 20.

A cylindrical portion 21 is formed in the center of the body 20, and support portions 22 are provided to protrude outward in three directions from the cylindrical portion 21.

A closure body 23 is fixed to the lower end of the cylindrical part 21,
This closure body 23 is provided with a protruding portion 16 .

In addition, a long nose 6 is attached to the upper end of the cylindrical portion 21 of the fuselage 20.
is fixed.

A rod 9 is rotatably supported in the center of the cylindrical portion 21 of the body 20, the upper end of the rod 9 is shaped like a prismatic body 8, and the lower end of the rod 9 is formed into a threaded portion 9a. There is.

A wedge member 10 is provided at the lower part of the cylindrical portion 21 and guided so as to be movable up and down, for example, by a key, and a feed screw hole 10a is formed in the center of the wedge member 10. The rod 9 is inserted into this feed screw hole 10a.
The threaded portions 9a are screwed together.

Slopes 11 are formed on three sides of the circumference of the wedge member 10.

A centering rod 12 is movably provided on the support portion 22 of the body 20 while maintaining a right angle to the rod 9, and a support member 22a of the support portion 22 and a stepped portion 12a of the centering rod 12 are connected to each other.
A spring 13 is interposed between the centering rod 12 and the seat body 24 hung on the wedge member 10, and the centering rod 12 is biased toward the wedge member 10 by the spring 13. It is in contact with the slope 11 of the wedge member 10.

A handle rod 3 of a handle mechanism B is rotatably inserted into the long nose 6 of the body 20, and a prismatic hole 3a at the lower end of the handle rod 3 is fitted into a prismatic body 8 of the rod 6.

A handle 4 and a holder 5a are attached to the handle rod 3, and a scribing needle 5 is attached to the holder 5a.

Next, the operation will be explained.

The centering jig 2 has its convex portion 16 aligned with the four parts 1 of the pallet 14.
5 is fitted onto the pallet 14.

In this case, the handle rod 3 is removed.

The workpiece A is placed at a predetermined position on the pallet 14 in contact with the inclination correction device 17 of the pallet 14.

The handle rod 3 is inserted into the long nose 6, and the prismatic hole 3a of the handle rod 3 is fitted into the prismatic body 8 of the rod 6.

Then, by rotating the handle 4, the workpiece A is centered.

In this case, do not turn the handle 4 firmly.

The centering rod 12 is not forced into contact with the workpiece A.

Rotate the marking needle 5 and check whether the workpiece A is falling.

The tilting of the workpiece A is corrected by adjusting the tilting correction device 17.

After the correction work, the handle 4 is firmly rotated again to send the wedge member 10 downward and the centering rods 12 to the outside via the slope 11.25.
2 to center the workpiece A.

The handle rod 3 is removed and the workpiece A is fixed to the pallet 14 using clamping means (not shown).

When performing turning processing, the pallet 14 is carried into a turntable on the machine side and the processing is performed.

As described above, the present invention includes a plurality of inclination correction devices 17 provided on the upper surface of the pallet 14 on which the work A is placed, a body 20 provided on the upper surface of the pallet 14, and a body 20 provided on the body 20 along the vertical direction. The rod 9 has a prismatic body 8 at its upper end and a threaded portion 9a at its lower part, and a rod 9 which is provided on the fuselage 20 so as to be movable up and down and has slopes 11 on three sides of its circumferential surface and has a rod 9 at its center. Feed screw hole 1 into which the screw portion 9a is screwed
A wedge member 10 having an angle 0a and a slope 25 at an inner end of the wedge member 10, which is provided at right angles to the rod 9 on support portions 22 provided on three sides of the body 20, are slid onto the slope 11 of the wedge member 10 by the force of a spring 13. A rod 12 protrudes outward from the machine body 20 when the wedge member 10 is brought into contact with it and centers the work A by contacting the lower inner circumference of the work A, and the machine body 20
a handle rod 3 which is removably and rotatably provided on the handle rod 3 and has a handle 4 at its upper end and is removably engaged with the prismatic body 8 of the rod 9; This centering jig device is characterized by being equipped with a scribing needle 5 for checking the inclination of A.

Therefore, the handle rod 3 is inserted into the machine body 20, the lower end of the handle rod 3 is fitted into the prismatic body 8 of the rod 9, the handle 4 is rotated, the scribing needle 5 is rotated, and the fall of the workpiece A is checked. By adjusting the tilt correction device 17, the tilt of the workpiece A can be corrected.

After the correction work, the handle 4 is firmly rotated again to send the wedge member 10 downward, and the centering rods 12 are sent outward through the slope 11.25. These centering rods 12 are used to center the workpiece A. can be done.

In addition, when the handle rod 3 is removed and the workpiece A is fixed to the pallet 14 using a clamping means (not shown) and turning is to be performed, the pallet 14 can be carried into the turntable on the machine side and the machining can be carried out. There is no need to use a separate turntable as in the case of .

[Brief explanation of drawings]

1 and 2 are explanatory diagrams of conventional workpiece centering, FIG. 3 is a partially omitted vertical sectional view of the present invention-embodiment, and FIG. 4 is a partially omitted plan view of the same. 9 is a rod, 10 is a wedge member, and 12 is a centering rod.

Claims (1)

[Scope of utility model registration request] A plurality of inclination correction devices 17 provided on the upper surface of the pallet 14 to place the work A, a body 20 provided on the upper surface of the pallet 14, and a prismatic body 8 provided along the vertical direction of the body 20 at the upper end. and a rod 9 having a threaded portion 9a at the lower part thereof, and a rod 9 which is provided on the body 20 so as to be movable up and down, has slopes 11 on three sides of the circumferential surface, and has a threaded portion 9a of the rod 9 screwed into the center thereof. A wedge member 10 having a screw hole 10a and a support portion 22 provided on three sides of the body 20 are provided at right angles to the rod 9, and the slope 25 at the inner end is applied to the slope 11 of the wedge member 10 by the force of the spring 13. A rod 12 that slides into contact with the machine body 20 and protrudes outward from the machine body 20 when the wedge member 10 is lowered to center the work A by contacting the lower inner circumference of the work A, and a rod 12 that is removably and rotatably attached to the machine body 20. a handle rod 3 having a handle 4 at its upper end and removably engaged with the prismatic body 8 of the rod 9; and a scribing needle 5 provided on the handle rod 3 to check whether the workpiece A is falling. A centering jig device characterized by comprising: