A system and method for on-line temperature control of electrolyte in electrolytic machining

Abstract

The invention discloses an online temperature controlling system and method for electrolyte in electrochemical machining and belongs to the technical field of temperature controlling. The controlling system comprises a temperature detecting element and a temperature controlling unit; the temperature detecting element comprises a first heat-sensitive material, a second heat-sensitive material and a strain gauge; the first heat-sensitive material and the second heat-sensitive material are overlapped and composited to form a heat-sensitive element; the heat-sensitive element comprises a fixed end and a free end; the strain gauge is arranged at the free end of the heat-sensitive element; a sealing cover is arranged at the free end of the heat-sensitive element; the fixed end of the heat-sensitive element is immersed into the electrolyte; the temperature controlling unit comprises an amplifying circuit, a signal processing module and an electrolyte heating and cooling device; the strain gauge is connected with the input end of the signal processing module through the amplifying circuit; and the output end of the signal processing module is connected with the electrolyte heating and cooling device. According to the controlling system, the temperature of the electrolyte can be sensed through the heat-sensitive element which is simple in structure and convenient to implement, the temperature of the electrolyte is controlled at the expected value and to be constant, and the accuracy of electrochemical machining is improved.

Description

technical field [0001] The invention relates to a temperature control system and method, more specifically, to an on-line temperature control system and method of electrolyte in electrolytic machining. Background technique [0002] The efficiency of electrolytic machining is high, but the machining accuracy is poor. The main reason for the poor accuracy of electrolytic machining is the instability of process parameters in the process of machining. The instability of electrolyte conductivity is one of the main reasons for the poor accuracy of electrolytic machining. Real-time on-line measurement and control of the conductivity of the electrolyte has become an urgent technical problem to be solved by those skilled in the art. Since the electrolytic current, voltage and the conductivity of the electrolyte are directly proportional, the general electrolytic machining is a constant voltage machining. Therefore, as long as the conductivity of the electrolyte in the electrolytic ma...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of poor machining accuracy caused by the temperature change of the electrolyte in the existing electrolytic machining, and provide an online temperature control system and method of the electrolyte in the electrolytic machining. The technical scheme of the present invention is adopted, and the structure is simple. , The convenient thermosensitive element senses the temperature of the electrolyte, and compares the temperature with the set temperature and feeds it back to the electrolyte heating or cooling device, so as to control the temperature of the electrolyte to be the expected value and be constant, thereby improving the accuracy of electrolytic processing; The method is simple and easy, not limited by space, and has wide application prospects

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