JPS643591Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clamp device, and more particularly to a clamp device for a welding positioner that can support welded materials in various positions and postures.

A welding positioner is known as a device for attaching a workpiece to a table and tilting or rotating the table so as to obtain the best welding posture. A clamp device used to fix a workpiece to a support table in a welding positioner simply uses a clamp member to press the workpiece against the support table surface. Therefore, if the support table is placed in a nearly vertical position due to an imbalance in the pressing forces of multiple clamping devices, slipping may occur between the workpiece and the table, which may be dangerous. It was hot.

The present invention was devised in view of the above-mentioned conventional problems, and aims to provide a clamping device for a welding positioner that can more reliably fix the workpiece by preventing the clamping member in the clamping device from rotating. It is something to do.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 schematically shows a welding positioner 1 comprising a plurality of clamp devices according to the present invention. The welding positioner 1 consists of a nearly L-shaped pedestal 3, a support table 5 that supports the workpiece W to be welded, and a table support device 7 interposed between the support table 5 and the pedestal 3. It is.

The table support device 7 includes a tilting frame 11 that is supported on a rising portion 3U of the pedestal 3 via a pivot shaft 9 so as to be able to freely adjust its inclination, and a circular rotating board that is rotatably and fixedly supported on the tilting frame 11. It consists of 13. At the tip of the arm 15, which is provided perpendicularly to the eccentric position of the rotary disk 13, there is a shaft bearing 1.
The support table 5 is rotatably supported via 7 around a vertical axis in FIG.

The support table 5 is formed, for example, in a rectangular shape, and a plurality of T grooves 19 are formed in the support surface in the radial direction and along the outer periphery. A clamp device 21 according to the present invention is installed in each of the plurality of T-slots 19 so as to be able to adjust its position. Therefore, a plurality of locations of the welded material W placed on the support surface of the support table 5 can be fixed by the clamp device 21.

As can be understood from the above configuration, by appropriately tilting the tilting frame 11 in the left-right direction in FIG. or upside down. Therefore, the clamp device 21 is required to reliably fix the workpiece W to the support surface of the support table 5.

As shown in FIGS. 2 and 3, the clamping device 21 is formed near one end of a sideslip prevention member 23 having a T-shaped cross section and engaged with the T-groove 19 in a freely adjustable position. Engagement recess 23
It consists of a clamp member 25 with one end 25E engaged with C, a T-bolt 27 passing through the sideslip prevention member 23 and the clamp member 25, and the like.

The other end of the side slip prevention member 23 is adapted to abut and support the side surface of the workpiece W to be welded,
Further, a through hole through which a T bolt 27 passes is bored near the other end. A pressing portion 25P for pressing the workpiece W to be welded onto the support table 5 is formed at the other end of the clamp member 25, and the clamp member 25
A through hole through which a T bolt 27 passes is bored in the body. A coil spring 29 is elastically mounted between the clamp member 25 and the sideslip prevention member 23, and a spherical washer member 33 is installed between the clamp member 25 and a tightening nut 31 screwed onto the T-bolt 27. There is an intervention.

In the above configuration, after the workpiece W to be welded is appropriately placed on the support table 5 held horizontally, the side slip prevention member 23 engaged with the plurality of T grooves 19 is brought into close contact with the workpiece W to be welded, and then By tightening the respective tightening nuts 31 in the plurality of clamp devices 21, the workpiece W to be welded is fixed to the support table 5 at a plurality of locations by the plurality of clamp members 25. When tightening the tightening nut 31 as described above, the clamp member 2
5 is prevented from rotating by the sideslip prevention member 23, so it does not rotate together with the tightening nut 31 and can be securely fixed. Also,
Even if the workpiece W to be welded tends to move in the front and back directions in FIG. Since the rotation of the member 25 is prevented by the sideslip prevention member 23,
It is quite difficult to move the workpiece W to be welded in the same direction. Further, when the workpiece W to be welded tends to move leftward in FIG. 2, the side slip prevention member 23 prevents the workpiece W from moving in the same direction. Therefore, the workpiece W to be welded can be fixed to the support table 5 more reliably.

As can be understood from the above description of the embodiments, in the present invention, the rotation of the clamp member is prevented, and the workpiece to be welded is supported from two directions by the clamp member and the side-slip prevention member. Therefore, when the support table that supports the welded material is in a vertical position, the sideslip prevention member supports the welded material from below, making it possible to more reliably support and fix the welded material. It is something that can be done.

Note that the present invention is not limited to the above-described embodiments, but can be implemented in other embodiments by making appropriate changes.

[Brief explanation of drawings]

Fig. 1 is a front view schematically showing a welding positioner equipped with a clamping device according to the present invention;
The figure is an enlarged sectional view taken along the - line in FIG. 1, and FIG. 3 is a sectional view taken along the - line in FIG. 2. Explanation of symbols representing main parts of the drawing, 5...
Support table, 19...T groove, 23...lateral slip prevention member, 25...clamp member, 27...T bolt, 31...tightening nut.

Claims (1)

[Scope of utility model registration request] T formed on the support table that supports the material to be welded
A sideslip prevention member is movably engaged with the groove, a clamp member is provided with one end engaged in an engagement recess formed near one end of the sideslip prevention member, and a clamp member is provided at the other end of the clamp member to be welded. A clamping device for a welding positioner, characterized in that a pressing part is formed and provided to press a material against a support table, and a tightening nut is screwed onto a T-bolt provided through a sideslip prevention member and a clamping member. .