The development of industrial equipment is getting faster and faster, and the application range is very wide. The linear optical axis is a guiding device with rolling bearings, which enables the product to complete linear motion. The standards required for this linear motion system are: simple design scheme, strong execution ability, low maintenance cost, strict selection of sturdy and durable raw materials, high-frequency heat treatment process, diameter specifications, true concentricity, true straightness, surface treatment, etc. High precision. Linear optical axes are widely used in various linear motion system software, such as cylinder rods, automatic high-precision copiers, automatic cutting machines and industrial robots. Next, the editor will bring you the classification of linear optical axes. I hope it will be helpful for you to understand linear optical axes!
Straight optical axis
1. Ordinary linear optical axis (sf)
Due to the point-to-point contact between the ordinary linear optical axis and the linear bearing, the surface hardness of the ordinary linear optical axis is very high, so the material and heat treatment method are very important. Material: suj2 (equivalent) GB gcr15. Hardness: hrc60±2; depth of hardened layer: 0.8-3mm; surface roughness: ra0.10m-ra0.35m; straightness: below 70um/1000mm; shaft outer diameter tolerance g6
2. Chrome-plated straight optical axis (sfc)
The chrome-plated linear optical axis is plated with a layer of hard chrome on the basis of the ordinary linear optical axis, also known as the bearing rod. It is suitable for rust-prone environments or bad environments. This axis is widely used in industrial robots and automatically slips. The moving part of the system device. : suj2 (equivalent) GB gcr15. Hardness: hrc60±2; depth of hardened layer: 0.8-3mm; surface roughness: ra0.10m-ra0.35m straightness material
3. Chrome-plated linear flexible shaft (rsfc)
The chrome-plated linear flexible shaft can be directly used for precision piston rods and some self-lubricating bearings due to its thick chrome-plated layer. Because of its moderate hardness, it is used in many fields. Material: 45# or 40cr or 2cr13; Hardness: hb220-260; Hardened layer depth: 0.8-3mm; Straightness: below 0.15mm/1000mm; Chrome plating thickness: 0.02-0.05mm
4. Stainless steel linear shaft
Stainless steel linear shafts have high corrosion resistance, high strength and wear resistance to maintain their efficient running performance. Therefore, it can be used in occasions where oxidation easily occurs, such as water, chemicals, steam, seawater, etc. Material: sus404c, sus304 Hardness: hrc60±2; depth of hardened layer: 0.8-3mm; surface roughness: ra0.10m-ra0.35m straightness
5. Chrome-plated hollow shaft: Due to the characteristics of its hollow structure, the hollow shaft greatly reduces the weight and simplifies the structure, and its interior is suitable for penetrating measuring wires, compressing air, adding lubricating oil, or For robotic arms.
For the linear optical axis, the material of the shaft is mainly carbon steel or alloy steel, and ductile iron or alloy cast iron can also be used. The working capacity of the shaft generally depends on the strength and stiffness, and also on the vibration stability at high speeds. If you want to know more about the linear optical axis, you can pay more attention to us!
