What is the difference between the high-efficiency centerless cylindrical grinding of three-axis engraving machine and ordinary cylindrical grinding? Centerless cylindrical grinding has no head frame and tail frame, but the workpiece is supported by supporting plate and guide wheel and grinded with grinding wheel. Centerless grinding method is composed of three mechanisms: grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually acts as the grinding work. The adjusting wheel controls the rotation of the workpiece and causes the feed speed of the workpiece. The workpiece support supports the workpiece during grinding. The productivity of centerless cylindrical grinder is high. It is mostly used in mass production and easy to realize automation.

普通外圆磨削

Ordinary cylindrical grinding

三轴雕刻机的普通外圆磨削利用工件两端的孔，把工件支承在磨床的头架及尾座间，磨削时工件在主轴带动下作旋转运动，砂轮作横向进给。

The common cylindrical grinding of three-axis engraving machine uses the center holes at both ends of the workpiece to support the workpiece between the center of the head frame and tailstock of the grinder. During grinding, the workpiece rotates driven by the main shaft and the grinding wheel makes transverse feed.

无心外圆磨削

Centerless cylindrical grinding

无心外圆磨它没有头架和尾架，而是由托板和导轮支持工件，用砂轮进行磨削。无心研削法它是由磨削砂轮，调整轮和工件支架三个机构构成，其中磨削砂轮实际担任磨削的工作，调整轮控制工件的旋转，并使工件发生进刀速度，工件支架在磨削时支撑工件。无心外圆磨床生产率较高。多用于大量生产，易于实现自动化。

Centerless cylindrical grinding has no head frame and tail frame, but the workpiece is supported by supporting plate and guide wheel and grinded with grinding wheel. Centerless grinding method is composed of three mechanisms: grinding wheel, adjusting wheel and workpiece support. The grinding wheel actually acts as the grinding work. The adjusting wheel controls the rotation of the workpiece and causes the feed speed of the workpiece. The workpiece support supports the workpiece during grinding. The productivity of centerless cylindrical grinder is high. It is mostly used in mass production and easy to realize automation.

无心外圆磨削较普通外圆磨削的特点

The characteristics of centerless cylindrical grinding compared with ordinary cylindrical grinding

连续加工，无需退刀，装夹工件等时间短，生产率高。

Continuous processing, no need to return the tool, short time for clamping the workpiece and high productivity.

三轴雕刻机的无心外圆磨床工件靠外圆在定位机构上定位，磨削量是工件直径上的余量，故砂轮的磨损、进给机构的补偿和切入机构的重复定位精度误差对零件直径尺寸精度的影响，只有普通外圆磨床的一半，不需打孔，且易于事先上、下料自动化。

The workpiece of the centerless cylindrical grinder of the three-axis engraving machine is positioned on the positioning mechanism by the outer circle, and the grinding amount is the allowance on the diameter of the workpiece. Therefore, the influence of the wear of the grinding wheel, the compensation of the feed mechanism and the repeated positioning accuracy error of the cutting mechanism on the dimensional accuracy of the diameter of the part is only half of that of the ordinary cylindrical grinder. There is no need to drill a central hole, and it is easy to automate loading and unloading in advance.

三轴雕刻机的磨削表面易产生奇数次棱圆度，如较大时往往会造成测量尺寸小于实体尺寸的错觉，而影响装配质量和工作性能。 机床调整较复杂、费时，每更换不同直径的工件就需冲调整托架高度，与距离及有关的工艺参数。故调整技术难度较大，不适宜小批及单件生产。

The grinding surface of three-axis engraving machine is easy to produce odd times of edge roundness. If it is large, it will often cause the illusion that the measured size is less than the maximum entity size, which will affect the assembly quality and working performance. The adjustment of the machine tool is complex and time-consuming. It is necessary to adjust the bracket height, distance and related process parameters every time the workpiece with different diameter is replaced. Therefore, it is difficult to adjust the technology, which is not suitable for small batch and single piece production.

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The above is a detailed introduction to the poly dragon engraving machine. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.jmycnc.com/