Nickel titanium spring production equipment and application method thereof

Abstract

The invention relates to nickel titanium spring production equipment and an application method thereof. A length control device is additionally provided in centerless grinding for grinding nickel titanium alloy wires by one person, so that the manpower is saved, the production efficiency is improved, meanwhile, the visual error caused by manual observation and marking is prevented, the grinding precision is greatly improved, and the grinding length control is achieved; meanwhile, a scratch preventing device is additionally provided in thermal drawing for effectively preventing scratch of the surfaces of the wires under the precondition of not influencing normal quick batch production; and in addition, automatic winding equipment is adopted in spring winding for realizing winding of nickeltitanium alloy springs through a motor and simple mechanical structures, so that the winding process is automatic, the spring winding stability is improved, the rebound caused by cutting of applied force cannot occur, and the labor cost and the risk are reduced.

Description

technical field [0001] The invention relates to a production device of a nickel-titanium spring and a method for using the same. Background technique [0002] Nickel-titanium alloy has excellent appearance in both civil and medical fields due to its unique shape memory and superelastic functionality, excellent corrosion resistance and biological properties, especially its shape memory ability, which can be reflected at different temperatures Different shapes, this feature is very prominent on the spring. In the production process of nickel-titanium spring, the nickel-titanium alloy wire needs to go through processes such as centerless grinding, hot drawing, and spring winding. [0003] However, during the centerless grinding of nickel-titanium alloys, the control of the length of the grinding stage has always been a problem. Since the grinding process is not a simple through-grinding process, two operators are often required to cooperate at present, and one is in charge of ...

AI Technical Summary

Problems solved by technology

However, due to the equipment assembly error and the shaking of the Ni-Ti alloy wire during hot drawing, the Ni-Ti alloy wire often scratches the furnace tube, and because of the high hardness of the furnace tube, it is easy to scratch the surface of the Ni-Ti alloy wire, which cannot meet the requirements of the product. Surface requirements greatly reduce product qualification rate

[0005] When the spring is wound, the Nitinol memory alloy cannot be shaped immediately like stainless steel or other metals. The Nitinol memory alloy spring will rebound as long as the applied force is broken during winding, so the winding is very laborious and dangerous.

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