Metal grinding disc for stone grinding and polishing and manufacturing process thereof

Abstract

The invention discloses a metal grinding disc for stone grinding and polishing. The metal grinding disc comprises a grinding disc base and a tool bit, a mounting hole and a first screw hole are formedin the center of the grinding disc base, a second screw hole is formed in the tool bit, and the tool bit is fixedly mounted at the front end of the grinding disc base through a locking screw which issimultaneously screwed in the first screw hole and the second screw hole. The structure is simple and reliable, machining and assembling are convenient, the tool bit can be conveniently and rapidly disassembled and replaced, grinding and polishing quality can be effectively guaranteed, and the safety of workers can be guaranteed. The invention further discloses a manufacturing process. The manufacturing process comprises the following steps that firstly, a metal blank is machined into the grinding disc base through a machining method, and the first screw hole and the mounting hole are machined; secondly, the tool bit is manufactured, and the second screw hole is machined in the tool bit; and thirdly, the tool bit is pressed to the preset position of the grinding disc base and installed through the locking screw. By means of the manufacturing process, the emission of pollutants can be effectively reduced, and production is convenient.

Description

technical field [0001] The invention relates to the technical field of stone surface grinding and polishing, and particularly designs a metal grinding disc for stone grinding and polishing and a manufacturing process thereof. Background technique [0002] The surface grinding and polishing of granite and other stone materials is generally carried out with multi-head continuous large plate mills, which are usually equipped with metal bonded superhard material grinding discs, resin bonded superhard material grinding discs, and grinding discs of various particle sizes, etc. simultaneously or sequentially. Meet the polishing requirements. Among them, metal bonded superhard material grinding discs are also called metal grinding discs, which usually include a grinding disc base and a cutter head. The grinding disc base is usually made of cast iron cast by sand casting, and the cutter head is fixedly installed on the grinding disc base by high-frequency welding. Among them, The fo...

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Problems solved by technology

Among them, metal bonded superhard material grinding discs are also called metal grinding discs, which usually include a grinding disc base and a cutter head. The grinding disc base is usually made of cast iron cast by sand casting, and the cutter head is fixedly installed on the grinding disc base by high-frequency welding. Among them, The foundry casting process relies on the combustion of solid fuel, and the discharge of pollutants is large, which makes it difficult to meet environmental protection requirements. Moreover, due to the limitations of the foundry casting process and molds, the disc base of the foundry casting is prone to casting defects such as uneven weight distribution. During the process, there will be uneven centripetal force and then vibration, which will easily scratch the stone surface, and seriously cause the grinding disc to break, threatening the safety of workers; on the other hand, the connection method of high-frequency welding is less efficient and requires more expensive High-frequency welding equipment is used, and smoke and dust are likely to be generated during the welding process, which will pollute the environment. Moreover, since the cutter head will gradually wear out during use, when the cutter head is worn to the point that it cannot be used, the entire grinding disc can only be removed. Replacement, the disc base cannot be reused or the cost of recycling is high

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