Adsorption type sheet workpiece clamping device

Abstract

The invention discloses an adsorption type sheet workpiece clamping device. The adsorption type sheet workpiece clamping device comprises a base and a positioning element; opening installation holes are symmetrically formed in the two sides of the base; a step cavity is formed inside the upper side of the base; an air outlet hole and an air inlet hole which communicate with a lower cavity body of the step cavity are formed in the lower portion of the side wall of the base; the air outlet hole communicates with a vacuum port of a vacuum pump; the air inlet hole is provided with a valve used for preventing air leakage; the positioning element is fixedly arranged on an upper cavity body of the step cavity; a sealing part used for preventing air leakage is arranged between the positioning element and the base; multiple vertical air flues are evenly arranged inside the positioning element and communicate with the lower cavity body of the step cavity. The adsorption type sheet workpiece clamping device has the following characteristics that the design is reasonable, the structure is simple, and operation is convenient; workpieces are stressed evenly and free of deformation, so that the workpiece machining quality and production efficiency are effectively improved; the adsorption type sheet workpiece clamping device is simple in manufacturing process, low in production cost and convenient to use and popularize.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a simple fixture, in particular to an adsorption type thin plate workpiece clamping device. Background technique [0002] In the processing of thin-plate parts, especially in the surface milling process of thin-plate parts, the problem often encountered is workpiece deformation, which will seriously affect the processing accuracy of thin-plate parts. Since the workpiece is subjected to the pre-tightening force during the clamping process, the uneven pre-tightening force applied to the workpiece will cause the deformation of the workpiece. At present, the commonly used milling fixtures for thin-plate parts mainly use mechanical transmission to apply pre-tightening force, such as commonly used vises, etc. These fixtures work well when clamping conventional thick workpieces, but for clamping thin-plate parts But it doesn't apply. Contents of the invention [0003] Th...

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Problems solved by technology

[0002] In the processing of thin plate parts, especially in the surface milling process of thin plate parts, the problem often encountered is workpiece deformation, which will seriously affect the processing accuracy of thin plate parts

Since the workpiece is subjected to pre-tightening force during the clamping process, the uneven pre-tightening force applied to the workpiece will cause deformation of the workpiece

At present, the commonly used milling fixtures for thin-plate parts mainly use mechanical transmission to apply pre-tightening force, such as commonly used vises, etc. These fixtures work well when clamping conventional thick workpieces, but for clamping thin-plate parts does not apply

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