SU1068256A1 - Vacuum clamping device - Google Patents

Abstract

VACUUM CLAMPING DEVICE, containing a base and a plate with a vacuum suction cup, made in the form of a chamber, connected to a vacuum line, characterized in that, in order to improve the processing accuracy by eliminating it. base errors, the device is equipped with a folding stop covering the plate outside and a drive supplied in the form of a plunger placed in the vacuum chamber with channels connecting the chamber to the vacuum main, and the outside of the vacuum chamber is closed by an elastic membrane inserted into the device, with holes The cavity of the hamer between the plunger of the inlet support and the membrane is filled with balls.

Description

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Figure 1 The invention relates to mechanical engineering, in particular to clamping devices, and can be used for fastening flat parts when machining on machine tools. A known mounting device for securing blanks, made in the form of a vacuum table, is a plate with openings located on the working surface of the table and connected to a vacuum line (1. The closest to the invention is a vacuum clamping device containing a vacuum suction plate You are filled in the form of a chamber connected to the vacuum mainline. The suction cups are made in the form of cavities in the roll, around which sealing elements are placed on the surface of the plate. When created in cavities suction discharge flat processing part located on the plate, is pressed against the atmospheric pressure 2. The disadvantage of the known device is - the inevitable error is based on; Research institutes in the processing of parts, in which the upper surface 11 is simultaneously treated surface and measuring base, and the bottom surface is the installation surface. The purpose of the invention is to improve the processing accuracy by eliminating base errors. Point 1 to the target is achieved by the fact that a vacuum clamping device comprising a base and a plate with a vacuum suction cup, made in the form of a chamber connected about the vacuum main, with an abzheyo hinged abutment covering the plate outside; and supply with a support with a drive made in the form placed in a vacuum chamber; A plunger with channels connecting the chamber with a vacuum main, the vacuum chamber outside is closed by an elastic membrane with openings inserted into the device, and the chamber between the plunger of the supplied support and the membrane is filled with sharakamn. FIG. 1 shows a device in the loading position, a slit; in fig. 2 - the same, in the clamping position of the workpiece; in fig; 3 - the same in the working position. The vacuum clamping device comprises a base I, on which the plate is fixed; This is 2 with a vacuum suction device made in the form of a chamber 3 connected to a vacuum line 4. A seal 5 is installed on the table surface around the chamber. The installation of the workpiece 6 liters is provided with a folding stop 7, covering the plate 2 from the outside, while the bottom surface of the stop facing the plate 2 is the installation. In the vacuum chamber 3 there is a support positioned, made in the form of a plunger 8, which is mounted for movement by means of; screw 9 and wedge 10. A spring 11 is designed to return the plunger 8 to the initial position, providing a constant kinematic connection of the wedge 10 with the plunger 8. The cavity of the chamber 3 above the plunger 8 is closed on top with an elastic membrane 12 with holes and filled with balls 13. In the plunger The channels 14, connecting the chamber 3 with the vacuum main 4, are implemented. The device operates as follows. Screw 9 rejects the wedge 10 to the initial position. In this case, the plunger 8 under the action of the spring 11 occupies the lower position. The blank 6 is placed on the plate 2 and is installed. A folding stop 7 is pressed, which presses the workpiece to the seal 5. By rotating the screw 9, the wedge 10 and the plunger 8 of the supplied support are moved, while the plunger through the balls 13 equipotentially presses the workpiece to the mounting surface of the support 7. After this, the device is connected to the vacuum line. Through the channels 4 and 14 and the gaps between the balls 13, the air is sucked out of the chamber 3, thereby securing the workpiece 6. The stop 7 is retracted, and the position of the base of the workpiece is maintained due to the fact that the screw pair is self-braking. Produced (processing of the upper surface of the workpiece. I The release of the workpiece after processing is carried out by joining the surface to be treated, which makes it possible to carry out the vacuum device, eliminates the error of the base; when making dimensions measured from the surface to be processed. As a result of THIS processing accuracy is improved. Benefits The proposed device in comparison with the known are the increase in labor productivity by 2-3 times due to processing by the method of automatic Formation of specified dimensions on a preset machine, replacement of labor of a qualified worker of the 5th category by the work of the third category.

Claims (1)

VACUUM CLAMPING US- A TRIPLE containing a base and a plate * with a vacuum suction cup made in the form of a chamber, connected to a vacuum line, characterized in that, in order to increase the accuracy of processing by eliminating the base error, the device is equipped with a hinged stop covering the plate from the outside and an input support ' a drive made in the form of a plunger located in the vacuum chamber with channels connecting the chamber to the vacuum line, the outside of the vacuum chamber being closed by an elastic membrane with holes introduced into the device, and the cavity of the chamber between the plunger of the input support and the membrane is filled with balls. Figure 1 SU, .1068256> 1068256.2