Current the diversity as a result of market demand, of the product change cycle is accelerated, made a lot of enterprises be introduced early or late what give priority to body with machining center is flexible product line, its characteristic was to use trade unit of knife device and numerical control of servo digitlization fixed position automatically, it changes treatment product rate is very rapid, need to change the tool of machining center and cutting tool only, have the authorized strength of machine program again, can come true to have the production of much breed product on a product line. Because this is flexible,treatment is the efficient production technology that gets used to market demand, foreign technology data makes clear, use flexible product line develops new product, can make cycle of new product trial-produce shortens 1/3 ～ 1/2, charge reduces 1/3 ～ 1/2. 1 flexible the composition of product line and function characteristic are flexible product line is common by machining center, transmission part, detect the composition such as equipment. Machining center basically forms by the following component: 1) main shaft; 2) workbench; 3) silk lever; 4) slideway; 5) trades knife unit automatically; Machine tool of 6) numerical control; Device of 7) hydraulic pressure; Device of 8) cooling fluid; 9) other. In recent years, as a result of the use of electric machinery of servo of main shaft of high-power high rotate speed, make machining center function rises substantially, it not only can undertake small lot much breed is produced, also can satisfy the requirement of medium, big batch. Machine program work out and test application flow chart 2 flexible the to program of product line and the technical preparation that debug new product development (manufacturing plan puts forward and machine program weaves) machining center finishs the job through implementing machine program, the process that machine program weaves: (1) is familiar with blueprint, to the dimension in part drawing, form requirement of tolerancepublic errand, technology have a preliminary knowledge. (2) processes order according to asking to make up eduction, namely the modelling of machining center, basically decide according to characteristic of machining center function and product structure characteristic. (3) machine the work out of machine program. The hand moves process designing and automatic process designing two kinds of means, can take surely according to machine tool character and conditional proper motion, use hand of man-machine interaction type to move process designing to give priority to commonly. Debug, operation phase debugs, unit process of cargo bandling forms by six parts: (1) opens a machine tool, machine program the input goes in the machine tool. (2) machines product place to use the modelling of clamping apparatus and cutting tool and installation. Debug in new product commonly built up fixture is used more in the process, the use of built up fixture can shorten greatly of new product debug cycle. Treatment cutting tool wants to ask to choose according to applicability and product blueprint. (Length of 3) cutting tool and radius compensate the measurement of the value and input, can finish through coming to the knife. (4) workpiece coordinate fastens build. In the work out process of machine program, the origin that must determine a course and coordinate are, the datum mark in pursueing the product normally is program origin surely, the coordinate department that builds with this calls workpiece coordinate department. The origin coordinate setting in machining center decides through taking the fixed position cutting tool that measures a head. In the program workpiece coordinate department dictates code is G54-G59, the format is: G54X(x)Y(y)Z(z) . (5) machine tool runs inspection program. The machine tool falls in MeM means, open Dryrun key, this opportunity bed is move feed speed switch to install speed feed with the hand, and the M in the program. S.
T code instruction is not carried out, this process depends on checking the validity of machine program and cost of cutting tool compensation, timely to incorrect cutting tool method and cost of cutting tool compensation amend. (6) sets work on clamping apparatus, the machine tool falls in MeM means, open odd Duan Cao to make switch, undertake trying cutting, be adjusted according to machining a result and amend cutting tool to compensation is worth and machine component coordinate to be worth, product coordinate detects basically be finished through coordinate appearance. Batch stage of production is in this phase, basically achieve the authorized strength of machine treatment procedure, in reaching the machine program that machines equipment individually program name to input notebook computer according to machine tool number, give save. According to batch production asks to make up cutting tool, mix to the model of each knife treatment characteristic makes good record, grasp the loss pattern of cutting tool, bring into cutting tool cutting tool library to run a system, achieve administration of cutting tool personal computer. The work out of machine program and debug applied flow chart to see figure. We are used flexible the development that product line had the autocycle engine casing such as CB125139GY6 in succession, debug cycle weak point not only, and cost is low, product quality precision is tall. Main shaft of; G91 G80 G30 E0 T01 M19; of name of program of O1999 of 3 programs citing is directional, z axis returns machine tool of M92; of the dot that change a knife to be shut automatically, axis of G91 G30 X0 Y0; X of clamping apparatus clamp, y axis returns N100 T01 M06;(28 of the 2nd reference point.
47boring) changes a knife to operate (boring of essence of life circulates) G90 G54 G00 X0 Y0 T02 G43 H01 Z30.
Fixed position of 0; main shaft is in coordinate origin, t02 date cutting tool is changing a knife await S2800 M03; main shaft to turning G98 G76 R3 of gush of M08; cutting fluid.
0Z-12.
0Boring of F120; executive essence operates M09; cutting fluid to close G91 G80 G30 Z0 M19; to secure a loop to cancel, main shaft returns N200 T02 M06;(D5 of the dot that change a knife.
0*D14.
0S/Drilling) changes a knife (bore) G90 G54 G00 X35.
5Y63.
0T03 G43 H03 Z40.
0 main shaft locate, t03 date cutting tool awaits G98 G81 R3.
0Z-22.
5F420 M08; cooling fluid gush, x-32 of executive bore loop.
0Y-26.
5; main shaft locates, g80 G49 M09; of executive bore loop cancels to secure a loop, cancel a knife to fill, cooling fluid stops M05; main shaft to stop main shaft of G91 G30 Z0 M19; to return the dot that change a knife directional N300 T03 M06;(M6*1.
0TADH) changes a knife (tap circulates) S1000M03; G90 G00 G54 X35.
5Y63.
0G42 H03 Z56.
0 main shaft locate S1000 M29; carries out rigid tap G98 G84 R2.
0Z-18.
0F1000 M08; is carried out circulating to tap X-32.
0Y-26.
5; main shaft locates, g80 M28; of executive tap loop cancels to secure a loop, cancel main shaft of rigid tap M09; G91 G30 Z0 X0 Y0 to return clamping apparatus of M05; M93; of the 2nd reference point to loosen, the door opens M12; workpiece to mark end of several M30; program, return program begin CNC Milling
CNC Machining