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Question:

What are the advantages and disadvantages of the V type guideway used in machine tools?

What are the advantages and disadvantages of the V type guideway used in machine tools?

Answer:

The utility model has the advantages of good guiding property, automatic compensation after abrasion and good lubricationThe disadvantage is that the friction coefficient is large, easy to collect iron filings and dust
The comparison and analysis of the type of machine tool guide rail, the most common form of guideway on the steel guide rail is the steel guide rail, and its use has a long history. The steel guide rail is a fixing element of the guide rail system, whose cross section is rectangular. The utility model can be horizontally arranged on the machine bed of the machine tool, and can also be cast into an integral body with a lathe body, which is respectively called a steel inlaid type or an integral type. The steel insert is made of steel, hardened and ground. The hardness is above 60 degrees of Rockwell hardness, and the steel guide rail is attached to the surface of the machine bed or with the Lapping Column by screw or binder (epoxy resin) to ensure the optimum planeness of the rail. This type of service is easy to maintain and easy to replace. It is very popular with maintenance workers.The integral guide rail or the casting guide rail, namely the steel rail and the base are cast into a whole, after processing, then fine grinding to the required size and finish. The guide rail must be quenched by flame to increase the surface hardness, so as to improve the wear resistance of the rail. The bed is generally of ductile iron, nodular cast iron hardness than steel, the whole rail can re repair and hardening, but it is almost impossible to replace.In order to achieve the above purpose, machine tool manufacturing practices in the past usually is: edge design of steel rails have hooked "ears", in the base of the mold casting, steel rail arranged on the base, then the molten iron poured into the mold, so that the steel rail and the base are integrally cast.
V type roller guide rail runs at a relatively fast speed, free of lubrication and low noise

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