Carbon brush cambered surface automatic grinding tool and using method thereof

Abstract

The invention relates to a tool for machining a cambered surface of a motor carbon brush contact surface, in particular to a carbon brush cambered surface automatic grinding tool and a using method thereof. The tool comprises supports, a positioning and clamping mechanism and a grinding mechanism. The supports comprise supporting tables, wherein supporting plates are vertically arranged on the supporting tables. The two supports are symmetrically arranged, the grinding mechanism is arranged between the two supports, the grinding mechanism comprises two sector-shaped supporting plates, a grinding wheel plate is connected to the arc surfaces of the tops of the two sector-shaped supporting plates, and the sector-shaped supporting plates are arranged on the two sides of the grinding wheel plate. A rotating shaft is fixedly connected to the lower ends of the sector-shaped supporting plates, the two ends of the rotating shaft are rotationally connected between the two supporting plates, a connecting rod is arranged above the rotating shaft, the connecting rod is arranged between the sector-shaped supporting plates, the connecting rod is fixedly connected to the central axis positions ofthe sector-shaped supporting plates, a fixing seat is arranged on the inner sides of the supports, and a grinding motor is arranged on the fixing seat; and the output end of the grinding motor is fixedly connected with one end of a rotating arm, the other end of the rotating arm is rotatably connected with one end of a rocker arm, and the other end of the rocker arm is rotationally connected to the connecting rod.

Description

technical field [0001] The invention relates to a tool for processing an arcuate surface of a motor carbon brush contact surface, in particular to an automatic grinding tool for an arcuate surface of a carbon brush and a use method thereof. Background technique [0002] During the operation and maintenance of the UHV converter station, when the carbon brushes of the condenser are replaced, there is a problem that the arc of the end of the new carbon brush is inconsistent with the end of the carbon brush in operation. After the installation of the new carbon brush, there will be problems of sparking and heating , so when the carbon brush is replaced, the arc surface of the new carbon brush end will be processed to a certain extent. [0003] At present, there are two main ways to form the arc surface of carbon brushes: one is the more traditional way, which is manual grinding, which relies too much on the experience of workers, and often causes the contact surface of carbon br...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main ways to form the arc surface of carbon brushes: one is the more traditional way, which is manual grinding, which relies too much on the experience of workers, and often causes the contact surface of carbon brushes to be worn out, requiring multiple times of grinding, comparing Correction and correction can make the contact surface qualified. The biggest disadvantage is time-consuming and labor-intensive, low efficiency, and does not meet the current requirements for high-efficiency and precise carbon brush arc surface forming.

[0004] Another way is to rely on the carbon brush grinding mechanism, but most grinding mechanisms can only grind a single or a single set of carbon brushes at a time, the grinding accuracy is difficult to control, and grinding produces a large amount of carbon powder, which not only affects the subsequent grinding accuracy but also affects the processing Great hazard to workers' health

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