Bar clamping guide wheel mechanism for refiner

Abstract

The bar clamping guide wheel mechanism for the refiner comprises a fixing base, a bar placing mechanism, a guide wheel mechanism and a pressing wheel limiting mechanism are arranged on the fixing base, the bar placing mechanism is used for placing a to-be-machined bar, the guide wheel mechanism is used for driving the to-be-machined bar to rotate, and the pressing wheel limiting mechanism is used for limiting the to-be-machined bar to rotate. The pressing wheel limiting mechanism is used for limiting a bar to be machined on the bar placement mechanism; the guide wheel mechanism comprises a rotary driving mechanism and a guide wheel, the rotary driving mechanism is connected with the fixed seat, the output end of the rotary driving mechanism is connected with the guide wheel, and the rotary driving mechanism is used for driving the guide wheel to rotate. The guide wheel is driven by the rotary driving mechanism to rotate, and the guide wheel drives the bar to synchronously rotate on the bar placement mechanism, so that the accurate grinding machine can uniformly grind the outer circumferential surface of the drill point, the concentricity of the bar and the drill point is improved, and the machining requirement of a high-precision micro drill is met.

Description

technical field [0001] The application belongs to the field of precision tool processing, and more particularly, relates to a rod clamping guide wheel mechanism for a refiner. Background technique [0002] Drills with a diameter of less than 3.175mm are usually called micro-drills, or micro-drills for short. The micro-drill is mainly composed of the bottom bar and the upper drill. During the production process of the micro-drill, the drill part of the micro-drill needs to be ground and grooved. It is difficult for traditional grinding equipment to meet the requirements of mass production and processing. demand, and the defect rate is high, the use of refiners can solve these problems very well. [0003] In the process of processing micro-drills, the refiner needs to clamp and fix the bar to the grinding station, so as to facilitate the grinding of the bar. In order to ensure that the outer circumferential surface of the drill needle is polished evenly during the grinding p...

AI Technical Summary

Problems solved by technology

At present, the clamping mechanism that can realize rotation clamps the workpiece through the jaws, and then drives the jaws to rotate, thereby driving the workpiece to rotate; during the processing of this kind of clamping mechanism, the workpiece is easy to shift in the jaws, thus As a result, the concentricity between the bar and the drill pin in the processed micro-drill is low, which cannot meet the processing needs of high-precision micro-drills

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