Tool device and method for improving machining accuracy of slender shaft

Abstract

The invention discloses a cutting tool device for improving the machining accuracy of a slender shaft, comprising a bottom plate and a base fixedly connected to the top of the bottom plate through support legs, a fixing groove is opened inside the base, and a support seat is fixedly connected to the top of the bottom plate , and the top of the support seat is provided with a grinding assembly and a drive assembly, and the top of the base is provided with a limit support assembly, and the limit support assembly includes a sliding plate, a first electric push rod and a movable plate, and the bottom of the sliding plate It is slidably connected to one side of the top of the base, and a protective cover is threadedly connected to one side of the sliding plate. The invention relates to the technical field of slender shaft processing. The tool device and method for improving the machining accuracy of the slender shaft can realize the pushing and feeding of the slender shaft, and both ends of the shaft body are supported to limit the position, which can prevent the shaft body from easily vibrating during grinding work , so as to ensure the grinding accuracy of the slender shaft, which is in line with the actual use.

Description

technical field [0001] The invention relates to the technical field of slender shaft machining, in particular to a tool device and method for improving the machining accuracy of slender shafts. Background technique [0002] A shaft with a ratio of length to diameter greater than 25 (ie L / D>25) is called a slender shaft, such as a lead screw, a smooth rod, etc. on a lathe. Due to the poor rigidity of the slender shaft, it is subject to cutting force and cutting heat during turning. Due to the effect and influence of vibration, etc., it is easy to produce deformation, and machining errors such as straightness and cylindricity occur, and it is difficult to meet the technical requirements such as shape and position accuracy and surface quality on the drawing, which makes cutting very difficult. The larger the L / d value, , the turning process is more difficult. [0003] In the existing grinding work on the surface of the slender shaft, because the grinding device is not provi...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a tool device and method for improving the machining accuracy of the slender shaft, which solves the problem that the grinding device does not have a stable anti-vibration support structure, and the slender shaft itself has a slender workpiece. And the feature of poor rigidity, in the process of grinding the surface of one end, the stability of the other end is not enough, so it is prone to obvious vibration, resulting in the problem of low grinding accuracy and poor quality of the shaft surface

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