ho - ninguhetsudo null for ho - ningu processed device

摘要

PURPOSE:To prolong the service life by connecting the adjusting members in the equal number to that of the pairs of grindstones at the lower edge part of an adjusting rod and interposing a dimension adjusting spacer between the adjusting members and adjusting the projection quantity of the grindstone in each pair. CONSTITUTION:When the control rods 42 and 43 of a head are lowered at the position where the grindstones 17a-17c correspond to the journal holes on a work, the adjusting rods 26 and 31 in a horning head 10 lower against the urging forces of the coil springs 30 and 34. Also the adjusting members 20a-20c connected with the adjusting rods 26 and 31 lower, and each grindstone projects by prescribed quantity from the outer peripheral surface, and is attached with each journal hole. Then, each journal hole of the work is horning-worked during the revolution of the head 10. Therefore, also the projection quantity of the grindstone in the head for projecting the grindstone by the adjusting rods in the number less than the number of pairs of the grindstones can be adjusted in each pair by interposing an adjusting spacer 22 between a plurality of adjusting members connected with one adjusting rod.