Coaxiality machining device and machining method for high precision rotary frame

Abstract

The invention relates to a coaxiality machining device for a high precision rotary frame. The coaxiality machining device comprises a workbench, a positioning mandrel installed on the workbench through a fixing bolt and a corresponding T-shaped groove nut and a boring tool arranged on a machine tool main shaft and corresponding to the positioning mandrel; a positioning circular truncated cone is arranged on the positioning mandrel, the side face of the positioning circular truncated cone is the positioning face, and the positioning circular truncated cone is sleeved with a positioning hole in one end of the rotary frame; a compression bolt used for compressing the positioning mandrel and the rotary frame is arranged on the positioning mandrel, and the boring tool is located at the other end of the rotary frame. According to the coaxiality machining device and machining method for the high precision rotary frame, not only is the machining efficiency of the rotary frame coaxiality improved, but also the machining precision and the production quality are guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a coaxiality processing device and processing method of a high-precision revolving frame. Background technique [0002] The rotary frame is widely used in high-precision products such as three-dimensional turntables. Its rotary accuracy is mainly guaranteed by the coaxiality accuracy of a group of central shaft holes. The level of coaxiality accuracy affects the final performance of the product. The coaxiality accuracy of the high-precision rotary frame Generally at the micron level, at present, a boring machine with a rotary table is usually used to process a high-precision rotary frame. Due to the limitation of the rotary accuracy of the rotary table, it needs to be checked many times for alignment; the radial runout of the spindle also affects the machining accuracy of the hole. The coaxiality accuracy often fails to meet the requirements; and the boring machine ...

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Problems solved by technology

[0002] The rotary frame is widely used in high-precision products such as three-dimensional turntables. Its rotary accuracy is mainly guaranteed by the coaxiality accuracy of a group of central shaft holes. The level of coaxiality accuracy affects the final performance of the product. The coaxiality accuracy of the high-precision rotary frame Generally at the micron level, at present, a boring machine with a rotary table is usually used to process a high-precision rotary frame. Due to the limitation of the rotary accuracy of the rotary table, it needs to be checked many times for alignment; the radial runout of the spindle also affects the machining accuracy of the hole. The coaxiality accuracy often fails to meet the requirements; and the boring machine has low speed and low efficiency

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