A sample clamping device for laser micromachining

Abstract

The invention discloses a sample clamping device applied to laser micromachining. A cylindrical groove type cavity is formed in the center of a base. A pressing base is a centrosymmetric square cylinder. A threaded hole is formed in the bottom end of a fixing vertical rod, a step cylinder is arranged at the top end of the fixing vertical rod, and an annular groove is formed in the inner surface of the step cylinder. A tension spring and a pressure spring are installed on the fixing vertical rod. One end of the tension spring is connected with a cylindrical counterbore a in the base, and the other end of the tension spring is connected with a step-shaped groove in the lower surface of the pressing base. One end of the pressure spring is in contact with an annular groove of the fixing vertical rod, and the other end of the pressure spring is in contact with a step groove in the upper surface of the pressing base. A pressing sheet is composed of a left pressing sheet body and a right pressing sheet body which are symmetrical. The pressing sheet and the pressing base are connected through a side pressure spring. A cylindrical groove a and a cylindrical groove b are connected through a side pressure spring. Two cylindrical grooves b are connected through a center tension spring. The clamping device can have uniform fastening pressure in the vertical direction, and also have the same uniform fastening pressure in the horizontal direction.

Description

technical field [0001] The invention relates to the technical field of laser micromachining, in particular to a sample clamping device used in laser micromachining of sheet materials. Background technique [0002] Laser technology is one of the four major inventions of the 20th century that are as famous as atomic energy, semiconductors and computers. Since its invention, with the increasing demand for small electronic products and microelectronic components, the precision processing of processed materials has become one of the main applications of laser technology. Laser micromachining refers to the micro-nano fine processing of materials using lasers. Compared with conventional mechanical processing, laser processing is more accurate, more precise and faster. Now, the micromachining of non-metallic materials (especially polymer materials and high-melting point materials) is more in the experimental stage. However, during the experiment, some magnets or tapes are used to f...

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Problems solved by technology

Now, the micromachining of non-metallic materials (especially polymer materials and high-melting point materials) is more in the experimental stage. However, during the experiment, some magnets or tapes are used to fix the sample sheet. The method will not only damage the sample to a certain extent, but also a series of problems such as looseness and offset are prone to occur during the processing, coupled with the particularity of the material to be processed, so there is an urgent need for a sample clamping suitable for laser micromachining device

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