Sheet of numerical control lathe secures a loop to dictate

When turning mental allowance bigger, when needing feed cutting treatment for many times, can use circular instruction to write machine program, can reduce the amount of block so, shorten process designing time and improve work efficiency of numerical control machine tool. The circular line that machines according to cutting tool cutting is diverse, circular instruction can be divided for onefold and fixed loop instruction and multiple and compound loop dictate. Onefold and fixed loop dictates simple to processing geometrical form, cutting tool takes the work with cutter track single line, can use process designing of fixed loop instruction, need to use an an instruction, block to complete the much pace action of cutting tool only namely. The motion that secures the cutting tool in dictating circularly divides a pace: Feed, cutting, retreat knife and return. 1.

Round cutting dictates circularly outside (G90) X of 　 of statement form G90 (U) _Z (W) round cutting circulates outside implementation of _R_F_ instruction function and cone cutting circulates, cutting tool presses a plan from circular start 1 with the graph 2 show cutter track line, return circular start finally, the dotted line in the graph expresses to move quickly by R, solid line states the workpiece feed rate that assigns by F is floating. Graph 1 outside X of specification of instruction of loop of 2 cone cutting, Z expresses round cutting circular chart value of cutting terminus coordinate; U, W states cutting terminus circulates relatively the coordinate heft of start; R expresses cutting only then dot and cutting terminus are in the coordinate increment of X axis direction (radius is worth) , the R when round cutting circulates outside is 0, can omit; F shows feed rate. Example 1 show 3 times like the graph, process designing of instruction of loop of cutting of the circle outside applying. Graph 3 outside example of A-G-H-D-A of 　 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of A-E-F-D-A X20 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of A-B-C-D-A X30 of 　 of G90X40Z20F30 of application of round cutting loop 2 show 4 times like the graph, apply process designing of instruction of cone cutting loop. Graph A-G-H-D-A 2 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of A-E-F-D-A X20 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of G90X40Z20R-5F30A-B-C-D-A X30 of application of loop of 4 cone cutting.

End panel cutting dictates circularly (G94) statement form G94X (U) _Z (W) loop of cutting of end panel of implementation of _R_F_ instruction function and the end panel cutting that take taper circulate, cutting tool from circular start, by the graph 5 with the graph 6 show cutter track line, return circular start finally, the dotted line in the graph expresses to move quickly by R, the feed rate that solid line assigns by F is floating. Graph circular chart of cutting of 5 end panel the 6 end panel cutting that take taper dictate demonstrative X, Z states coordinate is worth terminus of transverse plane cutting circularly; U, W states terminus of end panel cutting circulates relatively the coordinate heft of start; R expresses end panel cutting only then the dot is in to cutting terminus displacement the coordinate increment of Z axis direction, the R when end panel cutting circulates is 0, can omit; F shows feed rate. Example 3 show 7 times like the graph, apply process designing of instruction of loop of end panel cutting. Graph example of A-G-H-D-A of 　 of 　 of 　 of 　 of 　 of 　 of A-E-F-D-A Z10 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of A-B-C-D-A Z13 of 　 of G94X20Z16F30 of application of loop of cutting of 7 end panel 4 show 8 times like the graph, apply take process designing of instruction of loop of cutting of taper end panel. Graph the 8 end panel cutting that take taper apply A-G-H-D-A 3 of 　 of 　 of 　 of 　 of 　 of 　 of 　 of A-E-F-D-A Z29 of 　 of 　 of 　 of 　 of G94X20Z34R-4F30 　 A-B-C-D-A Z32 circularly.

Whorl cutting dictates circularly (G92) X of 　 of statement form G92 (U) _Z (W) whorl of cylinder of cutting of _R_F_ instruction function and awl whorl, cutting tool from circular start, by the graph 9 with the graph 10 show cutter track line, return circular start finally, the dotted line in the graph expresses to move quickly by R, the feed rate that solid line assigns by F is floating. Graph whorl of 9 cutting cylinder pursues X of specification of instruction of whorl of 10 cutting awl, Z states coordinate is worth whorl terminus; U, W states whorl terminus circulates relatively the coordinate heft of start; R shows awl thread only then dot and terminus are in the coordinate increment of X axis direction (radius is worth) , the R when columnar whorl cutting circulates is 0, can omit; F shows whorl lead. Example 5 show 11 times like the graph, apply process designing of instruction of loop of columnar whorl cutting. Graph cutting of 11 columnar whorl applies G50X100Z50 G97S300 T0101M03 G00X35Z3 G92X29 circularly.

2Z-21F1.

5X28.

6X28.

2X28.

04G00X100Z50T0000M05 M02 example 6 show 12 times like the graph, apply process designing of instruction of loop of awl whorl cutting. Graph the 　 of G97S300 　 of 　 of 　 of applied G50X100Z50 that cutting of 12 awl whorl circulates G92X49 of 　 of 　 of T0101M03 G00X80Z2.

6Z-48R-5F2 X48.

7X48.

1X47.

5X47.

1G00X100Z50T0000M05 M02 of 　 of X47 　 CNC Milling