Cam hydraulic type vibration device for electrolytic machining

Abstract

The invention discloses a cam hydraulic type vibration device for electrolytic machining, and belongs to the field of vibration mechanisms. According to the cam hydraulic type vibration device, a boxbody is provided with an input shaft cavity and a vibration shaft cavity, a vibration shaft is installed in the vibration shaft cavity through a piston cylinder structure, two groups of cams are installed on the input shaft, the two groups of cams are matched with two group of small oil cylinders, the two groups of small oil cylinders communicate with a rod cavity and a rodless cavity of the vibration shaft cavity through oil pipes, and the cams rotate along with the input shaft to drive the two groups of small oil cylinders to stretch and contract to drive the vibration shaft to vibrate up and down. According to the cam hydraulic type vibration device, the input shaft is ingeniously utilized to drive the cams to rotate, a cam track is used for driving the hydraulic cavity of the vibrationshaft to change so as to realize vertical reciprocating linear vibration motion of the vibration shaft, the rotating motion of the driving motor is converted into linear reciprocating vibration, thevibration amplitude is controlled by the cam track, the buffer damping effect of the hydraulic transmission is achieved, a complex hydraulic control system is not needed, the structural design is simple and compact, and the use is flexible and convenient.

Description

technical field [0001] The invention relates to a linear vibrating mechanism, more specifically, to a cam hydraulic vibrating device for electrolytic machining. Background technique [0002] In the technical field of machining, a linear reciprocating mechanism is often required. For example, in electrolytic machining, the spindle of the electrolytic machining machine usually needs to drive the cathode tool to move up and down to perform electrolytic machining. There are many types of existing linear motion mechanisms, such as linear motors, cylinders, oil cylinders, and rack-and-pinion mechanisms, crank-slider mechanisms, or screw-nut mechanisms to convert the rotational motion of the motor into linear motion. Compared with cylinders and oil cylinders, linear motors have lower dynamic rigidity and cannot play the role of buffering and damping. Air cylinders and oil cylinders need to be equipped with air pressure and oil pressure systems, resulting in complex equipment stru...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing linear vibration mechanism such as complex structure and poor buffering and damping effect, and provide a cam hydraulic vibration device for electrolytic machining. The technical solution of the present invention is adopted to skillfully use the input shaft to drive the cam to rotate. And use the cam track of the cam to drive the hydraulic chamber space change of the vibration shaft to realize the reciprocating linear vibration motion of the vibration shaft up and down, convert the rotational motion of the drive motor into linear reciprocating vibration, and the vibration amplitude can be controlled by the cam track, with hydraulic transmission Cushioning and damping effect, without complex hydraulic control system, simple and compact structure design, flexible and convenient to use, which greatly meets the linear vibration needs of electrolytic machining

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