In the axle assembly line conveyor belt operation, the force exerted by the assembly work head on the assembly parts is required to be estimated, and the matching parts are correctly connected by the input.

The influencing factors of the assembly force of the assembly line conveyor belt of the clearance fit include: relative position accuracy of the mating parts before assembly, the chamfering of the outer surface of the mating parts, rough appearance, etc., the rigidity of the assembly process system, the gap of the connection appearance and the gap between the mating parts Friction factor, etc. The calculation is based on detailed system links.

When the axis of the mating parts are parallel, the maximum assembly force of the assembly line conveyor belt occurs at the initial contact stage of the mating parts, and contacts at the chamfer. At this time, the main factors affecting the assembly force of the assembly line conveyor belt are: the quality of the assembly line conveyor belt assembly parts The friction factor of the working head and the mating parts, the angle value of the chamfer and the compliance of the assembly system in the direction perpendicular to the axis. When budgeting, the compliance of the assembly line conveyor belt can be neglected, and the normal clamping force and axial thrust of the working head to the assembly can be calculated according to the ordinary statics law.

　　 When the axis of the mating member is inclined, the axial assembly propulsion force will eccentrically act on the assembly. In the beginning stage, the mating part touches at another point at one point, and as the assembly deepens toward its mating part, two-point contact will occur. When necessary, the assembly force of the assembly line conveyor belt should be calculated for one-point and two-point contact, whichever is greater.

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