What are the components of the linear motor drive device of the high-speed machining center

Nowadays, many high-speed machining centers use linear motors to drive linear three-axis. The way high-speed machining centers use servo motors + rolling screws to drive linear three-axis has gradually reduced. At present, most high-speed machining centers have adopted linear The motor drives the linear three-axis, and the linear motor directly drives the linear three-axis, which directly eliminates the parts that convert the rotary motion into the linear. The following editor will introduce the components of the linear motor drive of the high-speed machining center.

Component of linear motor drive device

The linear motor drive device is composed of a rolling guide, a position measurement system, and a linear motor. At this stage, domestic high-speed machining centers that use linear motors to drive linear three-axis are relatively few, but now high-speed machining centers in advanced foreign countries have slowly begun to use linear motors to drive linear three-axis, such as the high-speed Machining centers use linear motors, whose feed speed is 2-3 times faster than that of traditional servo motors + rolling screws. Traditional servo motors + rolling screws drive linear three axes with the highest feed speed. At 48m/min, the maximum feed speed of the linear three-axis drive using a linear motor is 120m/min. It can be seen that the feed speed of the traditional servo motor + rolling screw drive linear three axis is not as fast as that of the linear motor drive linear three axis.

Characteristics of linear three-axis driven by linear motor

 The linear three-axis driven by the linear motor has the characteristics of fast speed, excellent rigidity and high efficiency. Nowadays, the use of linear motors to drive three linear axes is still not the mainstream, because the technology of linear three axes driven by linear motors is still mature enough, and there are many problems in linear motor technology, such as high price, large heat generation, and poor transmission stability. But in the future, it is foreseeable that the linear three-axis technology driven by linear motors will gradually mature and the price will gradually decrease. Therefore, in the future, the linear three-axis technology driven by linear motors will gradually be adopted by various CNC machine tools, and servo motors + Rolling screws will gradually decrease in CNC machine tools. The cruel market and the survival of the fittest understand the truth, and those who should withdraw from the stage will inevitably withdraw.