Is it better to use square rail or round rail for advertising engraving machine?

There are two types of advertising engraving machines, one is a circular rail engraving machine and the other is a square rail engraving machine. So what is the difference between these two advertising cnc router machine? In fact, this involves the guide rails used by the advertising engraving machine. Today I will introduce in detail the specific differences between the circular guide rails and the square guide rails used in the advertising engraving machine.

Friction and load bearing performance: Square rail is a square linear guide, which is a surface-contact friction, with large friction force and uniform load, requiring frequent oil lubrication; while a circular guide is a cylindrical linear guide with low friction, because it is The point contact of a series of balls requires limited support, poor rigidity, and limited load performance. Only the radial load has good bearing capacity, and the axial load is relatively small. Moreover, the square track is wear-resistant, high-speed, and has low resistance, so it has more advantages. The popular explanation here is that the square rail engraving machine is more powerful than the circular rail engraving machine.

Positioning accuracy: Because of the small gap between the static friction and the dynamic friction of the square guide, there will be no idling and slipping even during micro-feeding, and the analytical ability and reproducibility are good, so the positioning of the engraving machine at the μ m level can be achieved. precision. Low frictional resistance, can maintain accuracy for a long time, the rolling friction of linear guides can be reduced to 1/20~1/40 of the frictional resistance of sliding guides, especially simple lubrication structure, easy lubrication, excellent lubrication effect, wear of friction contact surface Small, so the walking accuracy can be maintained for a long time. All in all, the precision of the square rail is much higher than that of the circular rail.

It can be seen that the wood carving machine with square guide rail is better than the engraving machine with circular guide rail in terms of friction, bearing capacity and precision, so the price of the former is naturally higher than that of the latter. Of course, the specific guide rail should be processed according to the customer. According to the material of the product and the needs of the customer, if it is only used for cutting materials, it is also feasible to use a circular rail advertising engraving machine.

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