Any product has its own advantages and disadvantages. Today we will talk about the advantages and disadvantages of linear guides for woodworking engraving machines.
The advantages of linear guide rails for woodworking engraving machines are as follows:
1. High positioning accuracy: When using a linear slide rail as a linear guide, since the friction method of the linear slide rail is rolling friction, not only the friction coefficient is reduced to 1/50 of the sliding guide, but the gap between the dynamic friction force and the net friction force is also changed. The ones are very small. Therefore, when the bed is running, there will be no slippage, and the positioning accuracy of um level can be achieved.
2. Less wear can maintain accuracy for a long time: traditional sliding guidance will inevitably cause poor motion accuracy of the platform due to the countercurrent effect of the oil film, and due to insufficient sliding during the motion time, it will cause wear on the contact surface of the running track, which will seriously affect the accuracy. Rolling guides wear very little. Therefore, the machine can maintain the accuracy for a long time.
3. Use high-speed motion and greatly reduce the driving horsepower required for the machine: Since the friction force is very small when the linear slide rail moves, only a small power is needed to move the bed, especially when the bed works frequently When running back and forth, it can significantly reduce the power consumption of the machine. And because the heat generated by friction is small, it is suitable for high-speed operation.
4. Can bear loads in up, down, left, and right directions at the same time: Due to the special beam structure design of the linear slide rail, it can bear loads in up, down, left, and right directions at the same time, unlike sliding guides that can bear lighter side loads in the direction parallel to the contact surface. It is easy to cause poor running accuracy of the machine.
5. Easy to assemble and interchangeable: when assembling, you only need to mill or grind the supporting surface of the slide rail on the bed, and fix the slide rail and the slide block on the machine table with a specific torque according to the recommended steps. Alarm density during current processing. The linear slide rail is interchangeable, and the slider, slide rail god or even the linear slide rail group can be replaced separately, and the machine can regain the guidance of this precision.
The disadvantages of linear guide rails for woodworking engraving machines are as follows:
1. The coefficient of static friction is larger than that of the compass, and it is prone to crawling at low speeds (1-60mmmin).
2. When used for a long time, if the machine tool is slightly deformed, the running speed will be reduced, which will directly affect the production capacity.
3. Use the same motor to reduce the use of the driving motor nm and increase the load.
4. The attachment surface of the guide rail is required to have high precision and high cost.
5. The surface is easy to rust.
