| 摘要 |
<p>PCT No. PCT/JP86/00206 Sec. 371 Date Dec. 19, 1986 Sec. 102(e) Date Dec. 19, 1986 PCT Filed Apr. 25, 1986 PCT Pub. No. WO86/06514 PCT Pub. Date Nov. 6, 1986.A method of creating a hole drilling program reduces the number of times tools are changed. The method includes the steps (a) a step of (a) creating a part program (P1-P3) for every hole of a different shape, each part program comprising records arranged in a machining process sequence and including a tool used (A-K); (b) finding a tool ("C") having the highest frequency of common use in the part programs (P1-P3); (c) separating each part program which includes the common tool ("C") as a tool used into an anterior part program section (Pi1, i=1, 2, . . . ) and a posterior part program section (Pi2, i=1, 2, . . . ) at the common the tool, and adopting the following tool selection sequence: tool group used in the anterior part program section precedes the common tool ("C") which precedes the tool group used in the posterior part program section; (d) deciding a tool selection sequence (A->B->F->H->I->C->D->G->E->J->K) by repeating the second and third steps for each anterior part program section (Pi1) and each posterior part program section (Pi2) until there are no more common tools; and (e) creating a combined part program comprising records arranged in the tool selection sequence.</p> |
