An electronically controlled hydraulic shock excitation method and device applied to vibration cutting

Abstract

The invention relates to an electronically controlled hydraulic shock excitation method and device applied to vibration cutting. The device includes a vibrating body, a piston, a guiding flat key, a piston sleeve, a return spring, a live valve, a cylindrical plug, a cutting fluid shunt pipe and a motor , The excitation system of the device and the cutting cooling system are combined into one, and the cutting fluid that generates hydraulic impact energy is also used as the cooling fluid of the cutting tool. The method of the present invention uses the rotation of the motor to drive the active valve to rotate to realize the instantaneous conduction and shut-off of the liquid circuit. When the liquid circuit is closed, the hydraulic pressure in the liquid chamber suddenly increases and the liquid hammer phenomenon occurs, and the pulse force generated by the instantaneous high pressure causes the piston to move downward. The spring is compressed, and the liquid path conduction piston moves upwards under the action of the spring force, the liquid path is periodically turned on and off, and the piston is forced to move up and down to form vibration. The device of the present invention is compact in structure, high in efficiency, easy to start vibration, easy to control the vibration amplitude and frequency, and convenient to use. It can break through the range of traditional processing technology and materials when applied to vibration cutting, and has broad market prospects.

Description

Technical field [0001] The invention relates to an electronically controlled hydraulic shock excitation method and device applied to vibration cutting, in particular to an electronically controlled hydraulic shock excitation device and its electronically controlled liquid shock excitation applied to the vibration cutting technology of modern machining vibration method. Background technique [0002] With the development of science and technology and industrial production, people have higher and higher requirements for the processing accuracy and surface quality of various precision mechanical parts; It is a difficult-to-machine material, which also puts forward higher requirements for cutting technology and brings greater difficulties to cutting. Using the traditional cutting processing method, the efficiency is very low, it is difficult to guarantee the high-precision technical requirements, and some even cannot be processed. For this reason, many new cutting processing met...

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Problems solved by technology

Among them, the disadvantages of the mechanical vibration excitation device are large working noise and serious wear; the disadvantages of the hydraulic vibration excitation device are high energy consumption, slow reversing speed, and relatively slow dynamic response speed; the disadvantage of the electromagnetic vibration device is serious heat generation. , can not work for a long time; the disadvantage of the piezoelectric vibration device is that the output power is limited, which cannot fully meet the requirements of vibration cutting processing; Widespread use in production

[0004] The above-mentioned vibration devices, except the liquid impact vibration device disclosed in February 2009, their vibration system and cooling system are independent of each other, and their common disadvantage is that they cannot provide coolant for the tool when they are applied to vibration cutting. The vibration cutting system is relatively complex

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