Patent ID: 6169961
Filing Date: 2001-01-02
Classification: H01R,Y10T

Abstract:
An apparatus for producing an insulation displacement terminal wherein a pair of metal blocks is arranged in parallel to each other so that the opposed side edges of said blocks can be resiliently spaced apart from each other, each metal block having a tapered portion at an end of said side edge; wherein a lower metal block of said pair of metal blocks is fixed on a table, an upper metal block of said pair of metal blocks is supported by a frame through a load cell for measuring a reaction force so that the block can be elastically displaced in an opening direction and said frame can be adjusted in a vertical direction and moved in the vertical direction by a driving means, said vertical adjustment of said frame can adjust an initial distance between the opposed metal blocks; wherein said apparatus has a measuring means which includes a displacement meter which measures an amount of displacement of said upper metal block to measure a distance between said opposed metal blocks, a means for measuring an amount of insertion of an electrical cable by detecting a position of the cable inserted in a gap between said metal blocks or by detecting an amount of displacement of an inserting jig for the cable into the gap between said metal blocks, and a circuit for measuring a contact resistance between the cable being worked and said metal blocks, said contact resistance measuring circuit interconnecting the electrical cable and said lower metal block through a potentiometer, and a constant current power source so that the contact resistance between the electrical cable and said lower metal block is measured in accordance with a voltage drop; and wherein each of said measured values is supplied to a computing section, and said computing section carries out measurement of an extent of cable insertion, a distance between said spaced metal blocks, a reaction force, and a contact force during insertion of the electrical cable into the gap between said metal blocks in accordance with signals from said measuring means.