Latest concept clamping technology

2022-08-26
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New concept clamping technology

in metal processing, the workpiece is generally clamped by mechanical, electromagnetic and even freezing methods. Recently, engineers from Penn State University developed a method of using light activated adhesive to clamp the workpiece. The new concept clamping technology should be replaced in time, which is mainly used in cutting, grinding and other machining occasions. Its working principle is to use light activated adhesive to "clamp" the workpiece; Also by light, embrittlement adhesive "loosen" workpiece. Penn State University currently has the patent right of this technology. Now master work holding company (located in Morganton, Carolina, in the north of the United States) has selected this new concept product with great market prospects for production and is ready to be put into the market soon

when Mr. Edward de meter, Professor of industrial and manufacturing engineering at Penn State University, introduced this new concept product to people, he said that this new technology can replace the most commonly used mechanical clamping method. In the old mechanical clamping scheme, the investment cost of automatic clamping is very high, and the clamping is easy to cause workpiece deformation, occupy a lot of space, seriously affect the processing process, and the production efficiency is low. Using this new method to directly bond the workpiece, which is one of the main products of the experimental machine, to the steel fixture with a very simple structure, can well avoid the above shortcomings, greatly improve production efficiency, product quality and reduce production costs

apply the sticky adhesive to the upper end face of the clamping pin in the fixture, cure the adhesive layer under the ultraviolet light from the UV spotlight, and clamp the workpiece. After processing the workpiece, emit a flashing infrared ray to embrittle and break the adhesive, relax and take the workpiece out of the fixture

in the new clamping scheme, the workpiece is bonded to the steel fixture on the lower side of the workpiece. At the key position of the fixture, there are many small-diameter cylindrical hole covers made of corundum, a cheap ceramic material. These small hole covers are called clamping pins by Mr. de meter, which act as lenses or windows for the penetration of ultraviolet and infrared beams to activate clamping or break the adhesive

in order to clamp the workpiece, apply sticky adhesive to the upper end face of the clamping pin, and then place the workpiece on it. After a beam of low-density ultraviolet light emitted from the UV spotlight quickly penetrates the clamping pin, activate the adhesive to cure it. According to Mr. de meter, after the adhesive is activated and cured, a cured adhesive layer with a yield strength of 6000PSI is formed between the workpiece and the fixture within a few seconds

when the finished part is processed, the laser emits a flashing infrared ray, passes through the clamping pin, embrittles and breaks the adhesive, and relaxes the workpiece

the clamping system of curing adhesive activated by beam irradiation can form a clamping force of 6000PSI between castings, weldments and fixtures

the embrittlement and crushing of adhesives do not need to heat fixtures and parts, and can be completed in only 1 second. Mr. de meter said that the adhesive used together with the prototype manufacturing system can be used for parts assembly in the photoelectric industry. Often add some pigments to the adhesive, so that it can better absorb infrared rays. After embrittlement and crushing treatment, the original high strength of the adhesive can be reduced to 300PSI

"the workpiece is usually taken out by the operator from the fixture, accommodation, etc., or a rubber hammer liquid crystal man-made wood panel universal experimental machine is developed and produced for various physical and chemical performance tests of wood-based panels and decorative wood-based panels, which are gently knocked and loosened." Mr de meter said. (end)

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