JPS6156298A - Processed material holding tool for straight hanging surface processing - Google Patents

Abstract

PURPOSE:To carry a fixedly pinched material and to carry out electric power supply certainly by providing a holding claw and a press contact body for power supply on a holding tool. CONSTITUTION:When the back edge of a lever 2 is pressed, the edge of the lever 2 rises at bearing of a shaft support part 1a, and the edge shaft support part 2a of the lever 2a of the lever 2 couples with the long pore 3a of a holding claw 3 supported on the edge of a base body 1. The holding claw 3 and a pressure welding body 4 open away from the holding body 5 of the edge of each base body 1 and a welding fix body 6. A processed material 8 is pulled into the holding spot 7 of the edge of the holding tool to release the pressure of the lever 2, and the edge of the lever 2 falls down at bearing of the shaft support part 1a by return of a spring 9. At this time, the processed material is pinched by the holding claw 3 and the holding 5. At the same time, it is pinched by the press contact body 4 and the welding fix body 6. This holding tool is suitable for hanging into the frame to carry substantially in a serial of process with the long processed material straightly hanged.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a clamping tool for vertically suspending a long workpiece such as an aluminum alloy extruded material from a frame for sequentially transporting the workpiece to a series of surface treatment processes. This invention relates to a clamping tool for obtaining clamping and good power supply.

Various types of clamping tools have been provided in the past, but as shown in Figure 1, all of them basically consist of a clamping body that is fixed to a base and also serves as a current-carrying bar, and a clamping surface at the tip of the clamping body. and a clamping claw disposed opposite to the clamping claw, which is always biased in the closing direction by spring pressure, and the clamping claw and clamping claw are moved in the closing direction by some device against the biasing spring pressure. After the object to be surface treated is inserted between the bodies, the clamping claws are moved again in the closing direction by spring pressure, and the clamping claws and the clamping body use the spring pressure as a clamping force to clamp the object.

Because of this structure, the object to be treated may fall off from the clamp while being transported to each surface treatment tank or when going up and down for dipping, or the tip of the clamp may fall off again due to sparks caused by poor contact during power supply. A situation has arisen in which the device becomes unusable.

In order to solve the above-mentioned drawbacks, the present invention provides a clamping tool with clamping claws for clamping the object to be processed and a press-contact body for supplying power, so that the object to be processed can be reliably and firmly clamped. It is an object of the present invention to provide a workpiece holding tool that can be transported without falling off, and that can reliably supply power and perform good surface treatment.

The present invention will be described below based on an embodiment shown in the drawings.

FIG. 2 is a front view of the clamping tool according to the present invention, and FIG. 3 is a sectional view of the clamping tool showing a state in which a workpiece is clamped. FIG. 4 is an enlarged sectional view of the main part.

First, as a configuration of the clamping tool, the base 1 is rotatably supported (
The lever 2 is rotatably supported on the F side at the tip of the base body 1 (its shaft support is designated as 1b).
The gripping claw 3 is slidable and the long hole 3 of the clamping claw 3 is inserted into the slidable hole 11.
The tip of lever 2 is pivoted at a (the pivot support is 28)
has been done. A pressure contact body 4 is provided that penetrates a coil spring 71a supported near the rear of the shaft support 2a of the lever 2, and a fixed clamp body 5 for clamping the workpiece 8 is provided below the tip of the base body 1.
A current-carrying fixed body 6 (if provided) is provided separately. A stacked spring 9 is secured to the rear ends of the base body 1 and the lever 2 so as to face each other.

To describe the mechanism of the clamp having the above-mentioned configuration, first, when the rear end of the lever 2 is pressed, the tip of the lever 2 rises with the shaft support 1a as a fulcrum, and the tip shaft support 2a pivots to the tip of the base 1. The clamping claws 3 and the pressing member 4 open apart from the clamping member 5 and the current-carrying fixing member 6 at the tip of the base body 1, respectively, due to the elongated hole 3a of the clamping claw 3 supported (the shaft support is designated as 1b). , the object to be processed is held.

When the object to be processed 8 is inserted into the clamping lower at the tip of the clamping tool and the pressure on the lever 2 is released, the tip of the lever 2 descends using the shaft support 1a as a fulcrum by the restoration of the spring 9. At this time, the object to be processed is simultaneously held between the clamping claws 3 and the clamping body 5, as well as between the pressing body 4 and the current-carrying fixed body 6.

Regarding the material of the clamping tool of the present invention, it is preferable that the base body 1 and the lever 2 are made of stainless steel, the clamping claw 3 and the clamping body 5 are made of stainless steel, and the current-carrying fixing member 6 is made of copper.

Since the present invention is as described above, it is most suitable as a clamping tool for vertically suspending a long workpiece and suspending it from a frame that is sequentially transported to a series of surface treatment steps.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional clamping tool. FIG. 2 is a front view of the clamping tool according to the present invention, and FIG. 3 is a sectional view of the clamping tool showing a state in which a workpiece is clamped. FIG. 4 is an enlarged sectional view of the main part. Code 1: Base, 1a: Shaft support, 1h: Shaft support at the tip of the base, 2: Lever, 3: Clamping claw, 3a...
- Long hole of clamping claw, 4... Pressure contact body, 4a... Coil spring of pressure contact body, 5... Clamping body, 6... Current-carrying fixing body, 7
... Grasp opening, 8... Workpiece, 9... Layered spring.

Claims (1)

[Claims] In a clamping tool in which a lever is pivotally supported on a base body, and the tip part clamps a workpiece by the pressure of a biasing spring at the rear, the workpiece is clamped between a clamping claw at the front end part and a clamping body, and a press-contacting body is attached. A vertically hanging tool for holding a workpiece for surface treatment, characterized in that the workpiece is powered by a current-carrying fixing body.