JPH0221915B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a compact clamping device with high mechanical strength and precision used in a pine seam welding machine.

[Prior art]

FIGS. 1 and 2 are a plan view and a front view showing an example of a conventional clamp device. 5 is the trailing plate, 6
is a leading plate, 1 is an entry side clamp for clamping the trailing plate 5, and 2 is an exit side clamp for clamping the leading plate 6. 3 is an index cylinder for moving the inlet clamp 1 toward the outlet clamp 2, and 4 is a cross adjustment cylinder for moving the inlet clamp 1 in the width direction relative to the outlet clamp 2. . Note that 7 is a common base for supporting each member.

In the above-described apparatus, first, the leading plate 6 and the trailing plate 5 are clamped by the entry side clamp 1 and the exit side clamp 2. After the clamped leading plate 6 and trailing plate 5 are cut in parallel by a shear, the entry clamp 1 is moved a certain distance toward the exit clamp 2. In this case, if there is a deviation in the width direction between the leading plate 6 and the trailing plate 5, the entry side clamp 1 is moved in the width direction by the cross adjustment cylinder 4 to correct the deviation.

According to the conventional clamping device configured as described above, the distance from the surface of the common base 7 to the clamping surface is large, and there is no mechanism for connecting the inlet side clamp 1 and the outlet side clamp 2, so when cutting the shear Moreover, the strength of the clamping device is weak against the reaction force during welding, and the mechanical accuracy is also poor, resulting in drawbacks such as slippage of the leading plate 6 or trailing plate 5.

[Summary of the invention]

The present invention was made to solve the above-mentioned drawbacks, and in order to obtain a compact clamping device with high strength and precision, it is provided on a common base and clamps the leading plate and trailing plate respectively. In a clamping device equipped with an entry side clamp and an exit side clamp that press-contact both end surfaces, a chucking mechanism is provided between the entry side clamp and the exit side clamp, and a cross-adjustment clamp mechanism is provided separately from the entry side clamp. The present invention provides a clamping device for a pine seam welding machine characterized by the following.

[Example of idea]

3 and 4 are a plan view and a front view showing an embodiment of the present invention. Note that parts having the same functions as those in FIGS. 1 and 2 are given the same symbols, and explanations thereof will be omitted. 9
is a chucking mechanism (connection mechanism), which is provided between the entry side clamp 1 and the exit side clamp 2. 8 is a cross-adjustment clamp, which is provided separately from the entry side clamp 1;
A cross-adjust cylinder 4 is provided. Incidentally, since the cross-adjust cylinder 4 is not provided in the entry side clamp 1, the device can be lowered accordingly.

The operation of the present invention configured as described above will be explained as follows. First, the leading plate 6 and the trailing plate 5 are clamped by the entry side clamp 1 and the exit side clamp 2. The clamped leading plate 6 and trailing plate 5 are cut in parallel by a shear, and then the entry clamp 1 is moved a certain distance toward the exit clamp 2. At this time, the inlet side clamp 1 and the outlet side clamp 2 are connected on both sides by the chucking mechanisms 9, 9, so that the clamping device has strong strength and high mechanical precision. On the other hand, if there is a misalignment in the width direction between the leading plate 6 and the trailing plate 5, the cross-adjust cylinder 4 attached to the cross-adjust clamp 8 provided separately from the entrance clamp 1 Correct the misalignment by moving it in the width direction.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the clamp includes an entry side clamp and an exit side clamp that are provided on the common base and clamp the leading plate and the trailing plate, respectively, and press the both end surfaces. In the device, the entry side clamp and the exit side clamp are connected, and a cross-adjustment clamp mechanism is provided separately from the entry side clamp, making it possible to create a compact clamp for pine seam welding machines with good mechanical strength and precision. You can get the equipment.

[Brief explanation of drawings]

1 and 2 are a plan view and a front view showing an example of a conventional clamp device, and FIGS. 3 and 4 are a plan view and a front view showing an embodiment of the present invention. 1... Entry side clamp, 2... Output side clamp, 8... Cross adjust clamp, 9... Chucking mechanism. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1 In a clamping device used in a pine seam welding machine and provided on a common base, the entry clamp and the exit clamp clamp the leading plate and the trailing plate, respectively, and press the both end surfaces. A clamping device for a pine seam welding machine, characterized in that a chucking mechanism is provided to connect the side clamp to the side clamp, and a cross-adjustment clamp mechanism is provided on the input side of the input side clamp and is separated from the input side clamp.