Assembly after the first assembly or overhaul has great influence on the performance of the equipment.

The sewing machine with poor assembly quality has low precision, poor performance, loud noise, heavy torque and short life. On the contrary, some parts with very low precision can be assembled with better performance by careful assembly and precise adjustment.

In the assembly process, some links are easy to be ignored, which often causes obvious influence on the assembly quality and needs attention.

First, ensure the cleanliness of parts and components.

By careful

To ensure the cleanliness of sewing machine parts is the basis for ensuring assembly quality and prolonging the service life of sewing machines.

In particular, the shaft sleeve, bearings, oil pumps, and parts with rotating and swinging parts should be carefully cleaned.

If the shaft assembly is not clean, the axle sleeve will be overheated and the pmission torque will be too heavy. If it is serious, it will accelerate wear due to debris, and there will be serious failures such as "occlusion".

Two. According to program operation

Passing through the surface

The surface of the sewing machine parts such as electroplating and so on, there are sticky layers in the assembly joint surface (including holes, grooves, planes and screw holes). Therefore, before assembly, the parts must be processed according to the technological requirements, and can be processed in advance before entering the assembly state.

If the assembly fails to meet the specified technical requirements, the sewing machine will not work properly.

The position between parts and agencies is incorrect.

Working performance.