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According to the technique requests of the brake caliper in the process of production,a special fixture of float brake caliper has been developed based on 3D design in this paper. The development process and verified data from 3D modeling and kinematics simulation for this special fixture show that this 3D-designed process can conveniently forecast the assembly interference of the fixture and accurately add the mass of lead brick before the prototype is made. In this way the flutter caused by the unbalanced lathe fixture can be eliminated and the precision of run-out tolerance in cylinder hole compared with machine tool spindle can be improved,thus the processing quality of the cylinder hole in a brake caliper can be greatly guaranteed.
According to the technique requests of the brake caliper in the process of production, a special fixture of float brake caliper has been developed based on 3D design in this paper. The development process and verified data from 3D modeling and kinematics simulation for this special fixture show that this 3D-designed process can conveniently forecast the assembly interference of the fixture and precisely add the mass of lead brick before the prototype is made. In this way the flutter caused by the unbalanced lathe fixture can eliminated and the precision of run-out tolerance in cylinder hole compared with machine tool spindle can be improved, thus the processing quality of the cylinder hole in a brake caliper can be substantially guaranteed.