JP2541900Y2 - Multi-stage clamping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a multi-stage clamping device in which two types of workpieces can be positioned by one clamping device.

<Conventional Technology> In manufacturing a door for an automobile, an outer panel and an inner panel are positioned in a jig and spot-welded.
This door is different in size depending on the type of car, front and rear. Conventionally, two types of clamping devices CLA and CLB are installed on a base 1 as shown in FIG.

That is, the clamping device CLA for the work WA is the base 1
A support 3 is pivotally supported by a pivot 4 in a vertically rotatable manner on a frame 2 fixed thereon, and a clamper 6 is provided on the support 3 so as to be openable and closable by a pivot 7 so that the frame 2 can swing. The attached first cylinder 5 is connected to the support 3, and the second cylinder 8 slidably attached to the support 3 is connected to the clamper 6.

Further, the clamping device CLB for the work WB is
A support 10 is vertically movably guided by a frame 9 fixed on the base 1 in the vicinity of the clamp device CLA for A, and a clamper 12 is provided on the support 10 so as to be openable and closable. The structure includes a cylinder 11 for vertically operating the body 10 and a cylinder 13 for opening and closing the clamper 12.

<Problem to be solved by the invention> As described above, conventionally, a plurality of clamp devices corresponding to each type of work are installed on one base, so that the installation space is naturally secured, Fluid pressure piping to many cylinders was required, and capital investment was expensive.

<Means for Solving the Problems> The present invention is an improvement on the above conventional problems,
The feature of the configuration is that the fixed frame guides the vertical position by the lifting cylinder device so that the vertical position can be adjusted, and a support provided with a lower receiving piece on the upper surface, and is pivotally supported by the support so as to be able to pivot open and close in the vertical direction. A lower clamper having a lower holding piece corresponding to the lower receiving piece on the lower surface, and an upper receiving piece provided on the upper surface; and An upper clamper having a holding piece, a lower clamper actuating cylinder device swingably supported by the support and connected to the lower clamper, and pivotably supported by the lower clamper and connected to the upper clamper; And an upper-stage clamper operating cylinder device.

<Operation> With the configuration described above, two clamps of upper and lower stages can be used to adjust an appropriate clamp position of two different types of work and an arbitrary vertical position optimal for machining of a clamped work by substantially one clamp device. It is set to enable clamp positioning.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. First
In the figure, 1 is a base, 20 is a fixed frame fixedly mounted on the base 1, and has a guide surface 21 in the vertical direction.

Reference numeral 22 denotes a support slidably guided on the guide surface of the fixed frame 20, and a lower receiving piece 25 is provided on an upper surface thereof.

Reference numeral 24 denotes a cylinder device for raising and lowering the support 22, and is attached to a bracket 23 fixed to the fixed frame 22.

Above the support 22, a lower clamper 26 is pivoted 27.
It is pivotally supported to be able to open and close vertically. The lower clamper 26 is provided with a lower holding piece 28 corresponding to the lower receiving piece 25 provided on the support 22 on the lower surface, and an upper receiving piece 29 on the upper surface.

Further, on the lower clamper 26, an upper clamper 31 is pivotally supported by a pivot 32 so as to be able to pivotally open and close in the vertical direction. The upper clamper 31 is provided with an upper holding piece 33 corresponding to the upper receiving piece 29 provided on the lower clamper 26.

Reference numeral 30 denotes a lower-stage clamper operating cylinder device that is swingably attached to the support 22. Reference numeral 34 denotes the lower-stage clamper 26.
This is a cylinder device for operating the upper clamper which is swingably mounted on the cylinder.

Since the present invention has the structure described above, the cylinder device
The lower clamper 26 and the upper clamper 31 are integrally moved and clamped by the vertical movement of the support 22 by the work 24.
Appropriate clamp position of WA, WB and clamped work WA,
An arbitrary vertical position optimal for WB processing is adjusted and set. The lower clamper 26 is a cylinder device for operating the lower clamper.
At 30, the upper clamper 31 is individually opened and closed by the upper clamper operating cylinder device 34.

Therefore, the positioning clamp of the work WA is clamped by the upper receiving piece 29 and the upper pressing piece 33 by closing the upper clamper 31 with the lower clamper 26 closed.

Also, the work WB positioning clamp is
The closing operation of 26 causes the lower receiving piece 25 and the lower pressing piece 29 to hold the lower receiving piece 25 and the lower pressing piece 29.

<Effects of the Invention> As described above, according to the present invention, the fixed frame guides the fixed frame to the fixed frame so that the vertical position can be adjusted, and the lower frame is provided on the upper surface. A lower clamper provided with a lower holding piece corresponding to the lower receiving piece on the lower surface thereof and an upper receiving piece provided on the upper surface; and An upper clamper having a lower holding piece corresponding to the piece, and swingably supported by the support,
The lower clamper is connected to the lower clamper and connected to the lower clamper, and the upper clamper is connected to the upper clamper and connected to the upper clamper. Since two different types of workpieces are positioned and clamped three-dimensionally in two stages by the device, space in the plane can be reduced, and the upper and lower two-stage clamp positions can be easily selected to set the required work up and down. This has the advantage that the workpiece can be quickly clamped to the desired clamping position, and that it can be adjusted and set to an appropriate clamping position for the workpiece to be clamped and to an arbitrary vertical position optimal for machining the clamped workpiece.

[Brief description of the drawings]

FIG. 1 is a side view of the device of the present invention, and FIG. 2 is a side view of a conventional device. 20 ... fixed frame, 22 ... support, 24 ... cylinder device, 25
… Lower receiving piece, 26… Lower clamper, 28… Lower holding piece, 29
... upper receiving piece, 30 ... lower clamper operating cylinder device, 31
... Upper clamper, 33 ... Upper retainer, 34 ... Upper clamper operating cylinder device.

Claims (1)

(57) [Scope of request for utility model registration] 1. A support which is guided by a lifting / lowering cylinder device to a fixed frame so that the vertical position can be adjusted, and which has a lower receiving piece provided on an upper surface thereof, and which is pivotally supported by the support so as to be capable of turning and opening and closing in a vertical direction. A lower clamper provided with an upper receiver on the lower retainer corresponding to the lower receiver, and a lower retainer which is pivotally supported on the lower clamper so that the lower retainer can be vertically turned and opened and closed, and which corresponds to the upper receiver. An upper clamper swingably supported by the support and coupled to the lower clamper, and a lower clamper operating cylinder device, and an upper pivotally pivotably supported by the lower clamper and coupled to the upper clamper. A multi-stage clamp device comprising a clamper operating cylinder device.