What skills do you need to master as a ball valve assembly machine operator? CNC machine tool production factories are not a good environment, so more and more young people choose electronics factories or other service industries with a relatively good environment, but the CNC industry has better potential and technical content in those industries. For example, when our CNC lathe manufacturer Xunpeng CNC is doing recruitment, some people see that their salary is relatively high, but their own ability does not match, so as a ball valve assembly machine operator need to master what technology, The following content is not only applicable to ball valve assembly machine operators, but also other CNC lathe operators, for CNC machine tool operators need to master the technology is divided into many kinds, there are general technical requirements, heat treatment requirements, tolerance requirements, and so on, the following Xiaobian to learn it one by one:

1. Parts remove oxide skin.

2. On the surface of the parts processing, there should be no scratches, bruises and other defects that damage the surface of the parts.

3. Remove burrs.

Heat treatment requirement

1. After tempering treatment, HRC50 ~ 55.

2. Parts for high-frequency quenching, 350 ~ 370℃ tempering, HRC40 ~ 45.

3. Carburizing depth 0.3mm.

4. High temperature aging treatment.

Tolerance requirement

1. The unmarked shape tolerance shall meet the requirements of GB1184-80.

2. The allowable deviation of the unindicated length size is ±0.5mm.

3. The casting tolerance zone is symmetrical to the basic size configuration of the blank casting.

Part Angle

1. The corner radius R5 is not specified.

2. The chamfer without injection is 2×45°.

3. Sharp corners/sharp corners/sharp edges are blunted.

Assembly requirement

1. Each seal must be soaked with oil before assembly.

2. The assembly of rolling bearings is allowed to use oil heating for hot charging, and the temperature of the oil shall not exceed 100℃.

3. After the gear assembly, the contact spots and backlash of the tooth surface shall comply with the regulations of GB10095 and GB11365.

4. Allow the use of sealing filler or sealant when assembling the hydraulic system, but it should be prevented from entering the system.

5. The parts and components entering the assembly (including purchased parts and outsourced parts) must have the certificate of the inspection department before assembly.

6. The parts must be cleaned and cleaned before assembly, and there must be no burrs, flash, oxide, rust, chips, oil, coloring agent and dust.

7. The main fit dimensions of parts and components, especially the interference fit dimensions and related accuracy, should be reviewed before assembly.

8. Parts are not allowed to knock, touch, scratch and rust during assembly.

9. When fastening screws, bolts and nuts, do not strike or use improper spanners and wrenches. The screw slots, nuts, screws, and bolt heads must not be damaged after tightening.

10. The fasteners required by the tightening torque must be tightened using a torque wrench and tightened according to the specified tightening torque.

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