Self-adaptation grinding head structure of grinding machine

Abstract

The invention relates to a self-adaptation grinding head structure of a grinding machine. The self-adaptation grinding head structure comprises a grinding head, a transmission shaft and a bearing seat, wherein the transmission shaft is connected with the bearing seat through a bearing for fixation, a cylindrical locating member is arranged at the center of an end face of the transmission shaft, two transmission pins are symmetrically arranged on two sides of the top end of the transmission shaft, a locating hole which is matched with the locating member is formed in the center of the back face of the grinding head, two pin grooves which are matched with the transmission pins are arranged on the back face of the grinding head to enable the transmission shaft to transmit torque to the grinding head and form detachable flexible connection between the grinding head and the transmission shaft, the bearing is a sliding bearing, and a locating bulge loop is disposed on the upper surface of the bearing seat. Compared with grinding head structures in prior art, the self-adaptation grinding head structure has the advantages that the grinding head and the transmission shaft are connected with each other in a flexible mode, and the grinding head and the transmission shaft perform automatic alignment and location and transmit torque by means of the locating member and a pair of the symmetrical transmission pins; the grinding head can be adapted to forward and reverse alternated rotation grinding, enhancement of grinding effects of the grinding head is facilitated, and grinding quality and efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to a self-adaptive grinder grinding head structure for grinding the inner sealing surface of a valve. Background technique [0002] The sealing effect of the valve is an important indicator to measure the quality of the valve. Ordinary valves generally use a lathe to turn the sealing surface, and then seal it with a soft sealing ring. The sealing effect of this type of valve mainly depends on the sealing ring, which is easy to use for a long time. Leakage, short lifespan, and low reliability. The existing hard-sealed valve has high reliability and long service life. After the sealing surface of this type of valve is turned, it is necessary to grind the sealing surface to make the valve sealing surface achieve higher flatness and roughness, so that a better sealing effect can be achieved without using a sealing ring. [0003] At present, in the existing valve manufactur...

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Problems solved by technology

[0003] At present, in the existing valve manufacturing industry, the grinding process of the sealing surface in the valve body is usually carried out manually, especially for small valves, the general electrician or pneumatic tools cannot be inserted into the valve body, and often can only be manually used with sandpaper. Or emery cloth to grind the sealing surface of the valve body. This manual grinding method not only has poor grinding quality, but also consumes a lot of manpower and has high work intensity, which cannot meet the needs of large-scale industrial production.

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