Function of 5 axes treatment is in Hai Dehan ITNC 530 the application on milling machine of boring of door of numerical control dragon

2MachineTool(Group)Co.

, ltd.

, qiqihar161005) Abstract:THispaperintroducesanapplicationofHEIDENHAINiTNC530in5-axisGantryBoringandMillingMachineTools.

Thecharacteristicof5-axismachining, thestructureandfunctionsofswivelheadhavebeendescribed. Keywords:5- Axismachining, swivelHead, controlSystem, gantryBoringandMillingMachineTools1. Summarizing 5 axes to machine is to point to there are 5 reference axes at least on a machine tool (for example 3 linear reference axis rotate with two reference axis) , and can be in numerical control (at the same time harmonious motion undertakes machining below the control of CNC) system. The successive, flowing free curved surface that CNC Machining can machine such 5 axes linkage to place of machine tool of 3 axes numerical control cannot be machined or install clip very hard to complete treatment commonly. Be like the lamina of aviation engine and turbine, the screw iron roll that naval ships uses, and lots and lots of having special curved surface and complex model antrum, aperture housing and mould, if use common treatment of machine tool of 3 axes numerical control, as a result of its cutting tool photograph is in to the pose horn of workpiece in machining a process, cannot change, when machining certain and complex free curved surface, possible generation is interfered or owe treatment (do not machine) namely. And when the machine tool that uses 5 axes linkage is machined, in machining a process as a result of the pose horn of cutting tool, can adjust at any time, be interfered with respect to what can shun cutting tool work and can install clip to complete full treatment. My plant is own milling machine of boring of door of dragon of the XK2130 of research and development numerical control (graph 1) provide the accessory library that can choose for the user, all sorts of milling head in accessory library can need automatic exchange according to treatment, the among them milling head that place part (axis of A, C) but with lead plane other 3 reference axis (X, Y, Z) linkage participates in interpolation, realize 5 axes to machine a function. This machine uses Hai Dehan company to digitlize the system of ITNC530 numerical control of drive technology completely, realized high speed treatment, rose to machine precision, quality and efficiency. 2. Electric control system comprises the machine tool this machine tool has 4 linear coordinate, workbench of X coordinate drive, its journey amounts to 9m; Slide carriage of Y coordinate drive, the journey 4. 75m; Ram of Z coordinate drive, the journey 0. 9m; Beam of W coordinate drive, the journey 2. 3m; 3 coordinate use X/Y/Z the rule of HEIDENHAIN linear grating that brings distance stack (1Vpp sine wave) means of feedback of complete closed circuit, on the system but short distance winds reference point; W axis introduces double drive of two electric machinery synchro control, use means of feedback of coder of HEIDENHAIN absolute value, receiving electrify source to be able to build absolutely and referenced coordinate instantly is, avoided every time the labor that systematic electrify requires regain reference point; Axis of the A in the milling head that place part and C axis used electric machinery of servo of Xi Menzi 1FT6, a axis is in ± swings between 95º , a axis uses means of feedback of coder of HEIDENHAIN absolute value, c axis is rotational between ± 200º ; The car that accessory library ships milling head (U axis) use means of axle control of PLC fixed position, cooperate to control a program to come true to change automatically all sorts of milling head in accessory library. Drive of machine tool main shaft uses electric machinery of main shaft of servo of series of Hai Dehan QAN, each feed chooses electric machinery of servo of series of Hai Dehan QSY. Be aimed at the structural characteristic of this machine tool, electric control system configured drive of transducer of number of set of system of ITNC530 numerical control, Hai Dehan UM to control a system. Graph milling machine of boring of door of dragon of 1 XK2130 numerical control 3. Realize 5 axes linkage to machine 3. 1 structure characteristic uses the milling head that place part in milling machine of boring of door of dragon of large numerical control (graph 2) it is the important way that realizes 5 axes treatment. In this machine tool installation of the milling head that place part is on ram end panel. The milling head that place part is main comprise by the component such as body of axis of tie-plate, connection, bearing, milling head body. Tie-plate and square ram connection are together, connection axis transfers power through spline and connection of lead plane main shaft; Bearing body can realize 200 ° of ± to rotate through electric machinery drive (C axis) ; Buy of C position of axle detects coder of the buy inside support electric machinery, by be close to switch to detect C axis origin. Milling head body can realize 95 ° of ± to rotate through electric machinery drive (A axis) . Detecting element of A axis position is coder of angle of HEIDENHAIN absolute value. Because this places horny milling head,be to have runner shaft of two numerical control coming back (axis of A, C) , what can cooperate to achieve 5 axes linkage with lead plane is muti_function accessory.

Graph diagram of the 2 milling head that place part 3. System of control of CNC of 2 systems requirement is the main component that realizes 5 axes treatment, it is deciding the speed that the machine tool machines, precision and exterior quality greatly. The versatility that system of numerical control of Hai Dehan ITNC530 is the treatment course that suit milling machine, machining center or needs to optimize cutting tool contrail to control controls a system, treatment function abounds 5 axes to be used easily, it has powerful coordinate department to rotate, planar definition function; Cutting tool center governs a function (TCPM) ; Support a variety of 5 axes to process a form (cutting tool vector or angle of runner shaft coming back) ; A variety of safe functions (DCM of monitoring of real time collision, cut off the power safety retreats a knife) ; Handwheel intervention program moves (axis of handwheel interpose space is passed when 5 axes are machined) ; Columnar face machines a function; 5 axes machine cutting tool axis to control a function accurately. Be aimed at the complex curved surface that 5 axes machine, if want to realize treatment of high speed, high spirit and fast face quality, the hardware base that must have had, good servo performance and high speed control capacity. On hardware, ITNC530 used technology of complete digitlization drive. Its position controller, speed controller and voltaic controller realize digital control entirely. Digital electric machinery controls a technology to be able to achieve very high feed rate. The 3-D outline that Hai Dehan ITNC530 is best show processes numerical control system, 3-D block handles time to have 0 only. 5ms, control through optimizing method, calculate ahead of schedule outline and control are added quickly (Jerk) algorithmic, reduce outline deviation, in make sure exterior quality circumstance falls to lead treatment with the biggest feed, inside the shortest time treatment gives perfect complex outline curved surface. 3. 3 5 axes machine program machines complex 3-D outline with 5 axes, machine program uses the CAD/CAM system outside the machine tool to generate normally, next repass ITNC530 is passed in numerical control system from the aether net interface of the belt, at the same time ITNC530 system offerred a dot to filter tool, the NC program that can create to CAD/CAM system undertakes flowing optimize processing, make rate of more flowing, moving order mixes outline more quickly add quickly more flowing. If the graph shows the partial program of workpiece 3 times,this machine tool treatment is below: 0BEGINPGMQH_v5MM1;Date:TUeApr0117:15:3120082;Programmer:cN10703;PartFileName:D: SHowqierQH_2_stp.

Prt4;ToolNumber:25;ToolName:MILLToolDiameter:63.

000ToolLength:75.

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1ZX+0Y+0Z-207BLKFORM0.

2X+100Y+100Z+08CYCLDEF247DATUMSETTING~Q339=+6;DATUMNUMBER9LR0FMAX10TOOLCALL2ZS15011CYCLDEF32.

0TOLERANCE; Circulate 12CYCLDEF32 of 32 control public errand.

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3Z-20018LM128F3000; Center of the cutting tool that start manages functional 19LX+15.

775Y+72.

947Z+589.

285C+24.

533A-43.

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229C+24.

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343Z+697.

881C+170.

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852Z+701.

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0TOLERANCE7771CYCLDEF32.

17772M307773ENDPGMQH_v5MM pursues the milling head placing part in 3 treatment 4. Conclusion: Improve treatment quality and work efficiency, the demand that sufficient contented product produces is the theme with production technology lasting development. Machine tool of 5 axes treatment satisfied mill of boring of door of dragon of the XK2130 of my mill research and development numerical control already treatment is certain the large work of the complex form side that has special demand, also improved the treatment precision to these shape faces, quality and work efficiency at the same time. Swing the application of milling head, boring milling machine offerred the precision of high speed of type of door of 5 axes dragon that machines curved surface of large and complex space to develop technical support. This machine exhibited successfully on exhibition of machine tool of Beijing numerical control in April 2008, have the honor to win exhibit can top prize " Chun Yan award " . CNC Milling CNC Machining