JPS6042038Y2 - Work clamp device - Google Patents

Description

[Detailed Description of the Invention] The present invention deals with a workpiece (hereinafter referred to as a workpiece) placed on a work table of a machine tool or the like.

), it relates to a workpiece clamping device.

Recently, with the diversification of steel materials used, the demand for so-called deformed steel materials has increased.

Typical examples of these deformed materials include steel materials used for joints and corners called gusset plates and splice plates, but even these deformed steel materials must be securely clamped during processing.

This is because machining accuracy will deteriorate if it moves due to some external force during machining.

However, in the past, there was no suitable lamp device that could accommodate this, and adjustments were made by inserting an arbitrary object into a conventional clamp device.

Therefore, the number of processing steps increases and mass productivity is poor, and there has been a demand for an alternative device that can be simply and reliably clamped.

The present invention was developed in view of the above circumstances, and aims to provide a workpiece clamping device that can reliably and quickly clamp even shaped steel or deformed workpieces.

Below, embodiments of the present invention will be described based on the drawings.
The figure is a plan view of the work clamp device, Figure 2 is a front view of the same,
FIG. 3 shows a cross-sectional side view of the hydraulic chuck, in which the workpiece clamping device 1 is disposed on the worktable 2 together with the base plate 7, and pins 3 are installed in the corners of the workpiece clamping device 1. The guide rails 4, 4a provided along the left-right direction and the front-back direction of the work table 2 are connected to the stays 27, 27.
They are each rotatably attached to the shaft via a.

23 is a work stopper.

Of the guide rails 4, 4a, the guide rail 4 is two-dimensionally fixed to the panel 8 by rail holders 17, 17 at both ends thereof, and furthermore, the guide rail 4 is fixed to the panel 8 by means of a shaft (3).
) An arm 9 is fixed to the panel 8 on the other side.

This arm 9 is slidably attached to a plate 21 mounted on the base plate 7 so as to sandwich a stand holder 10.10 erected in the front-rear direction. It is fastened and fixed by a slide pin 19 inserted from the lower part and a nut 39 from the upper part.

At the lower left and right positions of the panel 8, angle guides 13.13 are installed, and the angle guides 13.13
Two rails 12 and 12 are mounted on the rails, and a board 11 and a workpiece receiver 6 erected thereon are integrally attached to the board 11 at an intermediate portion thereof by a fastener 18.

With the above configuration, the guide rail 4 is connected to the work table 2.
The upper surface can be rotated as shown by the chain line in FIG. 1, and can be fastened to any position on the plate 21.

The initial position of these guide rails 4, that is, the arms 9, is set by the stop screw 16 screwed into the stand holder 10.
It is adjusted by coming into contact with the slide pin 19.

Further, the other guide rail 4a is also integrally fixed to the panel 8a by rail holders 17a, 17a at both ends, and furthermore, at the other end of the guide rail 4a on the shaft attachment (3) side, an arm 9a is fixed to the panel 8a. Fixed.

The arm 9a has a notch 40 at its tip, and the guide rail 4a is fastened to the slide pin 19a inserted from the lower part of the metal fittings 22, 22 arranged on the base plate 7 with a nut 41.

Incidentally, reference numeral 20 denotes a hole drilled integrally in the base plate 7 and the work table 2, and the initial position of the guide rail 4a is determined by screwing the stop screw 16a into the block 15 set up on the base plate 7. This is determined by bringing it into contact with the arm 9a.

Next, a hydraulic chuck 5 is attached to each of the guide rails 4, 4a so as to be slidable along the rail axis, and a workpiece is placed on a workpiece receiver 6 that is erected on a board 11 placed on the base plate 7. P is placed thereon, and the workpiece P can be clamped by a hydraulic chuck 5.

As shown in FIG. 3, the hydraulic chuck 5 has a piston 29 at the front of the clamp cylinder 33, the lower part of which is covered with a helad cover 28, and the piston 29.
A clamper 31 is pivotally attached 30 to the upper part of the clamp 9 .

A claw 24 is mounted on the clamper 31, and a claw 24' is also mounted on the clamp cylinder 33 opposite to this.

In addition, a guide rail 4 is provided at the rear of the clamp cylinder 33.
A holding plate 32 is attached to hold the holding plate 4a, and a locking pin 37 is screwed into the clamp cylinder 33 at the upper part of the holding plate 32.
There is a set case 36, and the lock pin 37
is biased against the guide rails 4, 4a by a spring 38.

Therefore, by lowering the piston 29, the claw 24 also lowers and clamps the workpiece P.

The work clamp device according to the present invention has the above configuration,
It can achieve the following effects.

■ Although the idle rails are installed along the left-right and front-back directions of the work table, each side of the work table can be rotated independently, so even if the two sides of the work to be clamped are not perpendicular to each other, chucking is possible. Since pressing is a chuck method rather than a fixed method, unnecessary external force is not applied to the workpiece.

■ Hydraulic chucking is powerful, so
Chucking can be done at the rear and side surfaces of the work table, and there are fewer clamping points, making the structure simple.

■ Chucking is done while the workpiece is placed on the receiver, so
In case of drilling work etc., a drill can penetrate through the hole.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of a work clamping device, FIG. 2 is a front view thereof, and FIG. 3 is a sectional side view of a hydraulic chuck. 1... Work clamp device, 2... Work table, 3... Zen, 4, 4a...
Cutting rail, 5...Hydraulic chuck, 6...
...work receiver, 7...base plate,
9.9a...Arm, P...Work.

Claims (1)

[Scope of utility model registration request] A pin is installed in a corner of the work table, and a guide rail extending along the left-right direction and front-rear direction of the work table is rotatably attached to the pin, and a pin is attached to the pin on the pivoting side of the guide rail. An arm is provided at the other end of each, and means is provided for fastening the arm to the work table, and a hydraulic chuck is slidably attached to each of the guide rails to place the work on the workpiece holder. A work clamp device configured to clamp a work.