Heat pipe clamp and method for accelerating heat transfer of workpiece in drilling process

Abstract

The invention discloses a heat pipe clamp and a method for accelerating the heat transfer of a workpiece in the drilling process. The heat pipe clamp comprises a clamp body, clamping blocks, at least one heat pipe and a fixation assisting device, wherein the clamp body comprises a clamping mouth; the clamping blocks are arranged on the clamping mouth; each heat pipe comprises a pipe shell; the pipe shell is internally provided with a capillary liquid absorption core and a working medium for transferring heat energy; the pipe shell comprises an evaporation section, a heat insulation section and a condensation section which are successively communicated along the axial direction of the heat pipe; the evaporation section is embedded into at least one clamping block of the clamping mouth; heat conduction silica gel is arranged in an embedding gap between the evaporation section and the clamping block; the heat insulation section is fixedly connected with the clamp body through the fixation assisting device; and the condensation section is arranged at the outer side of the clamp body and is connected with a heat dissipation device. According to the heat pipe clamp, the heating expansion of the clamp body and the workpiece is effectively reduced and the processing accuracy and the dimension accuracy of the workpiece are increased by accelerating the heat dissipation of the clamp body and the workpiece by means of the heat pipe.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a heat pipe fixture and a method for accelerating the heat transfer of workpieces in the drilling process. Background technique [0002] In the drilling process, about 97%~99% of the energy consumed during drilling is converted into heat. A large amount of drilling heat makes the temperature of the drilling area rise, which directly affects the tool wear and the machining accuracy and surface quality of the workpiece. During drilling, more heat flows into the workpiece, and the generation of drilling heat is inevitable. During the drilling process, how to quickly dissipate the accelerated drilling heat to avoid overheating of the drilling area, so as to ensure the processing quality of the workpiece and the working life of the tool. important issues to consider. [0003] In traditional drilling, drilling fluid is generally used to reduce the drilling temperature, reduce t...

AI Technical Summary

Problems solved by technology

However, it is necessary to ensure that the flow rate is sufficient during use, which requires compensation, scheduling and treatment of the drilling fluid in the processing system, which increases the cost; in addition, because the drilling fluid often contains hydrocarbons and sulfur, phosphorus, Chlorine and other chemical components, its use and discharge will cause air, water and soil pollution to operators and the environment; high-pressure cooling method has good cooling, lubrication and cleaning effects, but the drilling fluid splashes seriously, and a protective cover is required; spray The cooling method is suitable for difficult-to-machine materials, but requires special equipment and is noisy

[0004] In addition, in most cases, more consideration is how to use the drilling fluid to cool the workpiece to avoid its deformation, but it is often ignored that the excessively concentrated heat generated in the drilling process will be transmitted to the tooling fixture, making the tooling Thermal deformation of the fixture affects the mechanical properties and dimensional accuracy of the workpiece

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