A polishing wheel expansion assembly for lathe

Abstract

The invention relates to a polishing wheel expansion assembly for a lathe. The polishing wheel expansion assembly comprises a clamping block, a connecting support, a polishing wheel and a driving mechanism. The clamping block is installed on a tool rest of the lathe. The connecting support comprises a rotating support and a pressing support, a rotating rod is arranged on one side of the rotating support, the rotating support is connected with the clamping block in a rotating mode through the rotating rod, the pressing support is fixed to the rotating support and comprises two floating assemblies, each floating assembly comprises a guide rail frame, a sliding block is arranged in each guide rail frame, and one side of each sliding block is elastically connected with the axial end of the corresponding guide rail frame. The two sides of the polishing wheel are connected with the sliding blocks in a rotating mode. The driving mechanism comprises a power source, an adapter block is arranged on a rotating shaft of the polishing wheel, a closed annular gear rack is coaxially arranged on the polishing wheel, a power input shaft is connected to the adapter block in a rotating mode, a gear meshed with the annular gear rack is arranged on the power input shaft, and the power source is connected with the power input shaft through a universal flexible shaft.

Description

technical field [0001] The invention relates to a polishing wheel expansion assembly for a lathe, belonging to the field of lathe expansion devices. Background technique [0002] Generally, after boring a workpiece with a round hole, in order to improve the installation accuracy and aesthetics, it is often necessary to polish the inner wall of the hole, and these tasks are generally to re-clamp the workpiece to some special polishing machine for polishing. However, there are many problems in this polishing method; [0003] 1. When the workpiece is removed from the lathe and re-clamped on the polishing machine, it is difficult to ensure the coaxiality of the two installations because of the second installation. If it is a preliminary polishing, the surface of the polishing head is relatively rough , will bring a certain degree of wear to the inner wall of the hole, and non-coaxial wear will affect the accuracy of the hole. [0004] 2. Re-clamping will bring about a large wa...

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: to overcome the technical problem that the traditional lathe in the prior art cannot turn and grind the inner hole of the workpiece, and provide a polishing wheel expansion assembly for the lathe, so that the workpiece can be polished while turning

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