Machine tool fixture for thin-wall workpiece

Abstract

The invention discloses a machine tool fixture for a thin-wall workpiece. The machine tool fixture comprises a material cylinder, a cooling pipe, an air inlet pipe, an air outlet pipe, a vortex pipe and a heat preservation tank, wherein the material cylinder adopts a hollow cylinder body; the cylinder body is filled with a water solution; a passage for air flow is arranged on the cylinder wall of the cylinder body; two ends of the passage are respectively communicated with the air inlet pipe and the air outlet pipe; the cooling pipe is arranged in the material cylinder; the cooling pipe is in the shape of a coned screw; the conicity of the coned screw is 20-50 degrees; the cooling pipe opening positioned in the tip end of the coned screw is communicated with the air outlet pipe; the cooling pipe opening positioned in the thick end of the coned screw is communicated with the air inlet pipe; a cold air pipe of the vortex pipe is communicated with the air inlet pipe; a hot air pipe of the vortex pipe is communicated with the heat preservation tank; an unfreezing pipe communicated with the air inlet pipe is also arranged on the heat preservation tank; a pipe valve is arranged on each of the hot air pipe and the unfreezing pipe. Compared with the conventional thin-wall fixture, the temperature deformation and stress deformation of the workpiece are effectively reduced.

Description

technical field [0001] The invention belongs to the field of workpiece clamping devices, in particular to a machine tool fixture for thin-walled workpieces. Background technique [0002] Thin-walled workpieces refer to parts whose structural thickness is relatively thin relative to the volume of the entire workpiece. When processing thin-walled workpieces, it is necessary to clamp and position the thin-walled workpieces with a clamping device before performing processing operations. At present, the clamping device for processing thin-walled workpieces is usually a three-jaw chuck. In order to ensure the stable clamping of thin-walled workpieces, the jaws will inevitably exert pressure on the surface of the thin-walled workpiece. Due to the thin wall, poor rigidity and weak strength of thin-walled workpieces And other characteristics, so it is easy to be deformed by force during processing. At the same time, during the machining process, a large amount of heat is often gene...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a machine tool fixture for thin-walled workpieces to solve the problem that thin-walled workpieces are easily deformed by force and heat

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