What is a slide? What are its types?
Answer: A slide is also called a displacement table, which refers to a component product with three mechanisms: guiding, feeding, and clamping.
The slide is easy to position and adjust, so it can be used for tooling and fixtures for inspection, processing, and assembly processes.
Slides are usually classified according to the following three aspects:
First, according to the axis classification, there are 1-axis X-axis slides, 2-axis XY-axis slides, height adjustment Z-axis slides, and 3-axis slides XYZ-axis slides. Among them, 2-axis and 3-axis slides are assembled from X-axis or Z-axis slides;
Second, according to the guide mechanism classification, there are dovetail groove type, cross roller guide type, and linear ball guide type;
Third, according to the external force, there are manual slides and electric slides.
What should I pay attention to when buying a slide?
Answer: There are several points to pay attention to when buying a slide:
First, the amount of slide movement;
Second, the slide movement accuracy, including straightness, parallelism accuracy, etc.;
Third, the load resistance of the slide, which refers to the force that the slide can withstand when the center of gravity of the workpiece is located in the center of the slide, in N;
Fourth, the allowable moment load of the slide, which refers to the force that the slide can withstand when the center of gravity of the workpiece deviates from the center of the slide, in N.m. Customers select the required slide according to actual conditions.
What are the differences between dovetail groove and cross roller slides?
Answer: Dovetail groove and cross roller slides generally have the following four differences:
First, the structure is different. The dovetail groove slide is a guide mechanism that slides along the inner and outer dovetail grooves; while the cross roller slide is a guide mechanism in which rollers are arranged on two V-groove guide rails in a mutually orthogonal manner, and the rollers roll along the V-groove while the table moves.
Second, the accuracy and stroke are different. The cross roller slide has high accuracy, the straightness accuracy can reach 3μm, and the stroke is small; while the dovetail groove slide has a straightness accuracy of 20~30μm, and its sliding is smooth, which can obtain a larger stroke.
Third, the operation adjustment speed is different. The dovetail groove slide has a fast adjustment speed. The gear rack adjustment knob can move forward or backward 18mm in one circle, while the cross roller type micrometer knob can only move forward or backward 0.5mm in one circle.
Fourth, there is a difference in price. The dovetail groove slide has a simple structure and a low price, while the cross roller slide has a relatively complex structure, high accuracy, and a high price.