Crank and grooved wheel combined type low-frequency torsional vibration platform

Abstract

The invention relates to a crank and grooved wheel combined type low-frequency torsional vibration platform. The left end and the right end of a sliding groove connecting rod are connected with a first rolling wheel and a second rolling wheel through sliding grooves and do linear reciprocating motion along a sliding block and a sliding rail. Under the rotating action of a crank, the first rolling wheel pushes the sliding groove connecting rod, the sliding groove connecting rod pushes the second rolling wheel, and therefore the second rolling wheel drives a torsional vibration disc to do reciprocating torsional motion in the circumferential direction. In the crank and grooved wheel combined type low-frequency torsional vibration platform, limiting rolling wheels are used in cooperation with a limiting guide rail, axial movement can be effectively prevented in the use process of the platform, and the sliding block and the sliding rail are adopted to transmit torsional vibration, so that the stability and the precision are higher. By adjusting the rotating speed of a motor and the position of the first rolling wheel in a crank mounting groove, the low-frequency torsional vibration frequency and amplitude can be adjusted, design is novel, planning is reasonable, and the crank and grooved wheel combined type low-frequency torsional vibration platform has the advantages of being simple in structure, convenient to operate, low in manufacturing and implementation cost and high in universality and is suitable for application and popularization.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a combined low-frequency torsional vibration platform of a crank sheave. Background technique [0002] In mechanical processing, such as turning, drilling, grinding, spiral milling, etc., axial vibration or torsional vibration of a certain frequency and amplitude is applied to the tool or the workpiece to be processed, which is beneficial to reduce cutting force and cutting heat, and reduce sticking. In the case of tool chipping, it can improve processing efficiency and prolong tool life. According to the frequency of superimposed vibration, this technology can be divided into ultrasonic vibration-assisted processing and non-ultrasonic vibration-assisted processing. For some special materials, such as carbon fiber boards, glass fiber boards, etc., during the drilling and reaming process, because the fiber material inside is easy to be pulled apart and br...

AI Technical Summary

Problems solved by technology

For some special materials, such as carbon fiber boards, glass fiber boards, etc., during the drilling and reaming process, because the fiber material inside is easy to be pulled apart and broken during processing, the processing effect is poor, or even impossible to process. The axial ultrasonic or non-ultrasonic torsional vibration of the drill bit or the workpiece can make the cutting force change periodically, promote the cutting of the fiber material, prevent it from being pulled out, and improve the processing effect, but the market is suitable for fiber material drilling. There are not many mechanical torsional vibration tables

For example, "A Composite Vibration Drilling Device" with the patent number CN201610002983.1 superimposes ultrasonic frequency torsional vibration on the drill bit. The production, production, installation and maintenance requirements are relatively high

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