The surface treatment process of robot CNC machining parts is an indispensable process for material post-processing. If there is no surface treatment process, the parts will be rusted, the surface will be rough, and they will be particularly ugly. The moving parts can't move smoothly, and the friction parts can't slide, let alone precise fit.
Robot parts are usually processed as follows after processing:
1. The parts are removed oxide skin. On the surface of CNC machining parts, there should be no defects such as scratches and scratches that damage the surface of the parts, and burrs and flashes should be removed.
2. The steel parts are quenched and tempered, the parts are subjected to high-frequency quenching, tempered at 350-370 °C, HRC40-45, carburizing depth of 0.3mm, and subjected to high-temperature aging treatment; Blackening, passivation, phosphating and other post-treatments; magnesium alloys can be subjected to micro-arc oxidation, etc.
3. The unmarked shape tolerance should meet the requirements of GB1184-80, the unmarked length dimension allowable deviation is ±0.5mm, and the casting tolerance zone is symmetrical to the basic size configuration of the blank casting;
4. The fillet radius R5 is not filled, the unfilled chamfer is 2×45°, and the acute angle is obtuse;
5. The temperature should not exceed 100 °C. After the gear is assembled, the contact spots and backlash of the tooth surface should meet the requirements of GB10095 and GB11365;
6. Sealing packing or sealant is allowed to be used when assembling the hydraulic system, but it should be prevented from entering the system. Parts and components that enter the assembly (including outsourced parts and outsourced parts) must have the qualification certificate of the inspection department before they can be assembled. .
Strictly speaking, surface treatment and heat treatment are not processing techniques, but in a broad sense, they are indeed processing techniques, but most of them are processing with materials. There may be some friends who do not understand the addition and subtraction of materials. I explain For a moment, the cutting processing we usually say is processed by material reduction, because the original material is larger than the size we want, the volume and quality of CNC machining parts are reduced, and some materials become powder, such as grinding machines.
Like powder metallurgy and 3D printing, it is the continuous increase of materials, and finally the shape is formed. Although the amount of added materials such as electroplating and painting is small, no matter how small it is, it also increases the material, so it is still called a process of processing. .
So, what are the types of surface treatment methods for robot parts? The surface treatment of robot parts is related to materials, let's talk about steel first! After all, the most material used on the equipment is steel. The processing methods of steel include electroplating and painting, and some can also be polished and drawn.
Electroplating is generally plated with harder materials and materials with strong rust resistance, such as chrome plating, nickel plating, titanium plating, gold plating, silver plating, etc. It is a chemical method to add another material to the surface of the material. , so that from the outside, it is no different from the plated material.
Generally, we use anodizing treatment for aluminum, which can be processed into a variety of colors, but most colors are not recommended for use on equipment, because the equipment is relatively heavy, try not to do it as much as possible. Green, too glamorous.
The anode can also be hard oxidized. The color of this oxidation cannot be changed. It is basically gray-brown, but the surface is much harder than that of ordinary anodes. Usually, this method is used when there is a requirement for strength. The material is very good, making the soft aluminum the second most widely used material after steel, especially in the field of CNC machining parts.