Numerical control lathe machines example integratedly

  Need turning part according to issueing what plan institute shows, material is 45 steel, among them 85 round cylinder do not machine Ф . The process that on numerical control lathe need has is: The circle outside cutting Ф 80mm and Ф 62mm; The R70mm dambered surface, cone, chamfer that retreat a knife, whorl reachs part. The requirement analyses process and craft course, write machine program.

Turning part drawing

 

1. spare parts machines craft analysis

 

(Coordinate of 1) set workpiece is

   Press fiducial coincide principle, the origin set that fastens workpiece coordinate is on the node of spare parts right end panel and circumgyrate axes, if the Op in the graph is nodded, the coordinate position that dictates through G50 set changes a knife to nod opposite workpiece coordinate to fasten origin Op (200, 100)

 

(2) chooses cutting tool

  According to the treatment requirement of part drawing, face of the end panel that needs to machine a spare parts, columnar face, taper seat, circular arc, pour horn and cut whorl to retreat knife chamfer and whorl, need altogether with 3 cutting tool.

A knife, outside the circle is left slant knife, cutting tool model is: CL-MTGNR-2020/R/1608 ISO30. Installation is in a knife on.

3 knives, whorl lathe tool, cutting tool model is: TL-LHTR-2020/R/60/1.5 ISO30. Installation is in 3 knives on.

5 knives, cut groovy knife, cutting tool model is: ER-SGTFR-2012/R/3.0-0 IS030. Installation is in 5 knives on.

 

(3) machines plan

  Use 1 extra circle left slant knife, first the end panel of spare parts of the finish machining after rough machining and spare parts each paragraphs outside face, the fine vehicle surplus of 0.5mm leaves when rough machining; Use whorl of cut of 5 knives that cut groove to retreat knife chamfer; Use 3 whorl lathe tool to machine whorl next.

 

(4) determines cutting dosage

Cutting deepness: Deepness of cutting of rough machining set is 3mm, finish machining is 0.5mm.

Main shaft rotate speed: According to the cutting function of 45 steel, speed of cutting of the set when machining end panel and each paragraphs of outside face is 90m/min; Rotate speed of main shaft of the set when car whorl is 250r/min.

Feed speed: Speed of feed of the set when rough machining is 200mm/min, speed of feed of the set when finish machining is 50mm/min. Speed of feed of the set when turning whorl is 1.5mm/r.

 

2. process designing and operation

 

(Program of 1) work out

 

(2) program inputs numerical control system

   Input the program numerical control system directly below means of MDI of numerical control lathe, or the numerical control system that inputs the program numerical control machine tool through computer communication interface. Draft cutting to machine in CRT screen upper mould next, the validity of checking program.

 

(3) hand moves pair of knife operations

   Through operating department of set workpiece coordinate to the knife, the point of a knife that records every knife slants buy value, in moving machine program, call cutting tool slant buy order, implementation slants to point of a knife the compensation that buy is worth.

 

(4) processes an operation automatically

   Choose automatic run mode, press the loop starts pushbutton next, the machine tool undertakes to workpiece by written machine program namely full automatic treatment.

O 0001  Program code name

N005 G50 X200 Z100  Building workpiece coordinate is

N010 G50 S3000  Demarcate of top rotate speed is main shaft 3000r/min

N015 G96 S90 M03  Main shaft is turning, fast set is constant line 90m/min

N020 T0101 M06  Choice 1 extra circle is left slant knife and a knife fill

N025 M08  Cooling fluid leaves

N030 G00 X86 Z0  Cutting tool locates quickly to cutting position

N035 G01 X0 F50  Car end panel

N040 G00 Z1  Z to exit 1mm

N045 G00 X86  X is in to 86mm of fall back on, round cutting circulates outside preparation

N050 G71 U3 R1  Round cutting rough machining circulates outside, cutting deepness is 3mm, the quantity that retreat a knife is 1mm.

N055 G71 P60 Q125 U0.5 W0.5 F200

Round cutting rough machining circulates outside, begin ordinal date to be N60, the end arranges serial number to be N125, x and Z direction leave surplus of 0.5mm finish machining each, cutting speed is 200mm/min

N060 G42  Right compensation of radius of point of a knife, n60 ~ N125 is outside course of finish machining of round cutting loop

N065 G00 X43.8

N070 G01 X47.8 Z-1

N075 Z-60

N080 X50

N085 X62 Z-120

N090 Z-135

N095 X78

N100 X80 Z-136

N105 Z-155

N110 G02 Z-215 R70

N115 G01 Z-225

N120 X86

N125 G40    Cancel compensation of radius of point of a knife

N130 G70 P60 Q125 F50   Round cutting finish machining circulates outside, cutting speed is 50mm/min

N135 G00 X200 Z100   Cutting tool is returned to the dot that change a knife

N140 T0505 M06 S50   Choose 5 knives that cut groove and 5 knives to fill, fast set is constant line 50m/min

N145 G00 X52 Z-60   Speed reachs point of X52, Z-60, preparation cuts groove

N150 G01 X45   Cut whorl retreats knife chamfer

N155 G04 X2   2 seconds pause in bottom land

N160 G01 X52  X direction go back reachs 52mm point

N165 G00 X200 Z100  Cutting tool returns the dot that change a knife

N170 T0303 M06  Choose 3 whorl lathe tool and 3 knives to fill

N175 G95 G97 S250  Install cutting speed dimension, set constant rotate speed is 250r/min.

N180 G00 X50 Z3 Speed reachs point of X=50, Z=3, prepare turning whorl

N185 G76 P011060 Q0.1 R1 Whorl cutting circulates

N190 G76 X46.38 Z-58.5 R0 P1.48 Q0.4 F1.5

N200 G00 X200 Z100 T0300 Fast fall back on changes knife spot, cancel 3 knives to fill

N205 M05  Main shaft stops

N210 M09  Cooling fluid closes

N215 M30  The program ends

 

Exemple:

 

   Following plan institute show a part, turning of the circle outside machining content to have, screw cutting, screw cutting should undertake after vehicle of outer circle fine. The spare parts uses good stuff semifinished product to undertake machining, because semifinished product surplus is larger, accordingly, purify of instruction of round thick car is major outside should be being used before vehicle of round outside undertake fine semifinished product surplus, 0.2mm surplus leaves after thick car (unilateral) . According to the treatment requirement of above spare parts, thick lathe tool of the circle outside need, outside grooving knife and round essence lathe tool, whorl lathe tool. Among them F 62 columnar face is not machined, write the numerical control machine program of the spare parts:

Numerical control turning is integrated process designing

O0031

N1 G50 X80.0 Z20.0;

N2 G30 U0 W0;

N3 T0101 M03 M08;

N4 G00 X70.0 Z10.0;

N5 G71 U1.0 R1.0;

N6 G71 P7 Q15 U0.4 W0.2 F0.3 S800;

N7 G00 X40.0 F0.15;

N8 G42 G01 X30.0 Z0.0;

N9 G01 Z-25.0;

N10 X40.0;

N11 Z-40.0;

N12 G02 X50.0 Z-45.0 R5.0;

N13 G03 X60.0 Z-50.0 R5.0;

N14 Z-55.0;

N15 G40;

N16 G30 U0 W0;

N17 G50 S1500;

N18 G96 S200 T0202;

N19 G70 P7 Q15;

N20 G00 X62.0 Z0;

N21 X32.0

N22 G01 X-2.0;

N23 G30 U0 W0;

N24 T0404;

N25 G00 X41.0 Z-25.0;

N26 G01 X20.0 F0.15;

N27 G00 X50.0;

N28 G30 U0 W0;

N29 G97 S1500 T0303;

N30 G00 X32.0 Z3.0;

N31 G92 X29.0 Z-22.5 F0.15;

N32 X28.2;

N33 G30 U30.0 W20.0 M09 M05;

N34 M30;

The world ” the heaviest ” multinomial technology amounts to numerical control lathe international is advanced level

 5 meters of the DL250 of the biggest norms on the world numerical control are heavy-duty Pullman, in Wuhan group of heavy-duty machine tool made a success recently, multinomial technology amounts to international advanced level.  
5 meters of DL250 numerical control exceed heavy-duty Pullman, its are the biggest circumgyrate diameter amounts to 5 meters, bear weight can amount to 500 tons, be up to now on the world of the biggest norms exceed center lathe of heavy-duty numerical control.  
This machine tool is those who have completely own intellectual property is great and homebred masked equipment, gross weight amounts to 1450T, main shaft end panel beats and radial beats all be in 0.008 millimeter (to send silk very one of) in, even if is the congener product of the coequal norms that foreign famous manufacturer produces, achieve so coequal precision to also be belonged to not easy. This equipment makes a success, generate electricity to promoting our country the sources of energy, ocean marine production level will produce tremendous effect.

The main function of machining center

Machining center can realize 3 axes or the linkage of 3 axes above is controlled, in order to make sure cutting tool has the treatment of complex surface. Machining center is divided outside having linear interpolation and function of circular arc interpolation, still have all sorts of treatment to secure radius of loop, cutting tool graph of process of automatic compensation, treatment shows length of automatic compensation, cutting tool, man-machine interaction, breakdown is diagnosed automatically, the function such as process designing leaving a line.
Develop from numerical control milling machine and machining center comes. Depend on machining center having automatic exchange to machine the ability of cutting tool with the biggest distinction of numerical control milling machine, through the cutting tool of different utility is being installed on knife library, the treatment cutting tool that changes knife device automatically to change main shaft to go up can be passed in holding clip, realize a variety of treatment functions.
Machining center can be divided from the exterior wait for vertical, horizontal and compound machining center. The main shaft of vertical machining center is perpendicular at workbench, basically apply to treatment plank kind, housing kind workpiece, also can use at mould treatment. The main shaft axes of horizontal machining center and workbench mesa are parallel, its workbench mostly for stage of circumgyrate of numerical control of servo electromotor pilot, clip is held in workpiece in, rotate through workbench the treatment that can realize many treatment extent, apply to casing kind workpiece treatment. Compound machining center basically is to point to have on a machining center stand, lie two main shaft or main shaft but 90 ° switchback, can install the treatment that 5 extents realize in clip in workpiece consequently.

Machining center of vertical of S33 of herd tough firm will appear on CIMES 2008

   The CIMES 2008(that held at Beijing to 13 days on October 9 exhibition of tool of machine tool of the 9th China International) go up, mu Ye (Makino) company (the number that exhibit a stage: – of W1 house D 112) will carry machining center of its S33 vertical and company of German wave dragon to be revealed with the stage. S33 vertical machining center introduced Mu Ye’s expert 5 control system and system of control of SG1.4 geometry precision, have outstanding treatment precision and more design of optimized steel sex structure, hold an advantageous heat concurrently to be out of shape control function and admirable scrap handle ability.

   Herd tough firm is professional be engaged in making numerical control metal machine machine tool and offer face car, aviation and mould to process a trade flexible the well-known company of treatment renovation plan, also be the manufacturer of tall accurate machine tool of center of trade of global machine tool.

The industrial enterprise technical transformation to upgrade guide plan in 2017, printed and distributed

For the implementation of the state council for the 113th time Wednesday presided on annual key technical upgrading project orientation planning work deployment, major projects to promote a new round of technical transformation to upgrade, the ministry of industry and information technology in perfecting the “made in China 2025” major project library, on the basis of organize the formulation of the “2017 annual plan of technical transformation to upgrade guide industrial enterprises, selected a group of advanced technical level, the focus of the influential projects, has been printed on September 1, 2017.”2017 annual plan of technical transformation to upgrade guide industrial enterprises issued by the industrial enterprise technical transformation to upgrade guide plan according to the organization of the industrial enterprise technical transformation to upgrade investment guide, faces the society public solicitation.The enterprise online, the local department in charge of industry and information technology, or the central enterprise group audit recommendations, the ministry of industry and information technology organization comprehensive selection, determine the 644 projects included in the 2017 annual technical transformation to upgrade guide.Guidance plan covers the intelligent manufacturing and green manufacturing, strong industrial base, product quality improvement, and other areas of the eight, involving machinery, light industry, medicine, automobile and other 13, the project total investment 4000 one hundred million yuan, the financing needs of more than 1600 one hundred million yuan.Of industry and information technology department of the orientation program as promoting industrial investment and the important way of enterprise technical renovation work, jointly with relevant departments to organize production docking, priority support to guide plan.Where the competent department of industry and information technology will strengthen the propaganda promotion plan guide, strengthen policy coordination, to assist in producing melt docking, play to the role of the industrial investment fund, etc, integrating the resources, promote the project implementation.Relevant financial institutions to guide project as an important source project financial support of the real economy, through credit, equity financing and debt financing, the industrial fund and so on ways to strengthen the financial support of technical transformation project.On September 7, the ministry of industry and information technology department of industry and melting organized for briefing to the national development bank, the national development investment company, citic group, the industrial and commercial bank of China and other financial institutions to introduce technical renovation work, promote orientation program.Financial institutions agree, will be delivered in a timely manner to the branches, strengthen the communication with local authorities and enterprises, to carry out due diligence, qualified project in the orientation program to support it.In recent years, the technical innovation investment become the main force of promoting industrial investment growth, become the important measures to promote the adjustment of industrial structure upgrade.The national economy & other;Much starker choices-and graver consequences-in & throughout;Planning, “made in China 2025” will be technical reform as an important content.Wednesday presided repeatedly emphasize strengthening technical renovation work of the state council.Released the 2017 annual industrial enterprise technical transformation to upgrade guide plan, the purpose is to guide the social capital and other elements to, to produce melt docking platform, open channels, stimulate the enterprise demand docking upgrade power independently.(the original title: “2017 annual plan of technical transformation to upgrade guide industrial enterprises issued by the) (source: the ministry micro)