In the operation of the assembly line conveyor belt, it is necessary to estimate the force exerted by the assembly work head on the assembly parts, so that the matching parts can be correctly connected.

The factors affecting the assembly force of the assembly line conveyor belt with clearance fit are: the relative position accuracy of the fitting parts before assembly, the edge state of the surface of the fitting parts such as chamfering, the rough surface, etc. friction factor, etc. The calculation is handled according to the detailed system links.

When the axes of the mating parts are parallel, the maximum assembly force of the conveyor belt occurs at the initial contact stage of the mating parts and at the chamfered edge. The main factors affecting the assembly force of the conveyor belt at this time are: the quality of the assembly parts, The friction coefficient of the working head and the matching parts, the angle value of the chamfer and the compliance of the assembly system in the direction perpendicular to the axis, etc. When budgeting, the compliance of the assembly line conveyor belt can be neglected, and the normal clamping force and axial propulsion force of the working head to the assembly can be calculated according to ordinary static laws.

When the axis of the fitting is inclined, the axial assembly thrust will eccentrically act on the assembly. In the initial stage, the mating parts touch at one point at another point, and as the assembly deepens toward its mating part, two-point contact occurs. If necessary, the assembly force of the assembly line conveyor belt should be calculated separately for one-point and two-point contact, whichever is greater.