PLC and communication servo get the application in milling machine in numerical control

7 × 1.

The aperture of flat bottom blind of 65, because claimed accuracy is tall, batch is big, reason cannot use traditional jig to be machined on drilling machine, it is very difficult also above traditional milling machine treatment, although can machine efficiency very low also, and equipment loss is mixed power loss is very big also. The treatment of this workpiece is having very extensive representative, a lot of products of production are having similar demand, for this, our design made one is used hereat kind the equipment that the product machines -- general-purpose numerical control gets milling machine. One, if the graph is shown 1 times,systematic overview system is formed, control uses PLC partly, deserve to undertake program parameter revise with man-machine interface, set, and moving condition shows monitoring, but the content of interface of man-machine of process designing setting. 3 axes all communicate servo for total number word, electric machinery of each axis servo is passed even the axis implement drive ball guide screw, deserve in order to move to have the workbench of linear slideway and main shaft milling head, its location is exact, rate is rapid. Main shaft milling head is controlled by transducer, according to cutting tool and workpiece and feed, will set the rotate speed with reasonable main shaft, it is in the program set its start stop. Each axis all is set two-terminal ultimate sensor and origin sensor, cool and lubricate to also have different often detects, calling the police the lamp and man-machine interface place show call the police information. Be debugged to facilitate and overhaul, each operation all sets a hand to use a function, if the hand moves shift of each axis speed, main shaft,high low speed rotates, cutting fluid and lubricant switch. Although whole of this machine tool is half closed-loop control, as long as options, assemble, to program and operation are reasonable, precision and stability still can satisfy use requirement. 2, hardware configuration PLC is chosen always grand FBS-40MCT, this model machines and tools has higher sexual price to compare, volume is minor, the function is strong, inputted at 24 o'clock, have among them at 16 o'clock high speed tally, frequency can amount to 120K, outputted at 16 o'clock, have 4 axes among them the pace is entered or servo output conformity is inside, output frequency can amount to 120K, make application rises very convenient, wiring forthright. WinProladder of process designing software has echelon graph Great Master say, yi Xueyi is used and the function is powerful, the operation such as editor, surveillant, debug unusual convenient and easy to use, key-press, mouse is used reach function of online and instant instruction inquiry and operation are how-to, make efficiency of editor, input times add. Contact allocation: The Z photograph signal that takes electric machinery of each axis servo makes origin switch, want cent to receive go up in dot of input of a few high speed, with interrupt undertake revert of machine tool origin, switch of the others spacing, operation switch, fluid check knows to wait for groovy contact to be able to press order ordinal receive. Electric machinery of servo of axis of X, Y, Z3 is connected advanced 3 axes servo outputs a dot, main shaft high low speed, cooling, call the police etc receive go up in dot of the others output. Servo all chooses axis of X, Y, Z3 identical, communicate servo driver 0040E-CBCEE-02 with the word of ES set total number when benefit, with the 60CB040C-2DE6E of servo electric machinery of 60 series small inertia. This servo function is more perfect, if add decelerate gear of apply the brake of specific power consumption, electron, automatically to wait, have a variety of pulse to string together an input, protective function is more complete also, have owe pressure, press too, flow too, out of tolerance of overload, locked-rotor, stall, position, coder is unusual etc. Join by means of drive of collector open a way in this equipment to PLC, highest pulse inputs frequency to be 200K, servo ON, Z believes date to wait to also make corresponding connection. Transducer chooses Fu Ling's DZB70B0015L2A, norms is single-phase 1500W, 400Hz, have much situation fast use for the editor. Because be used normally when not frequent speed change, incident rate adjusts set is not derivative, adjust on transducer operation face plate only, set two speed, high speed is used at treatment, low speed is used at to the knife. Adjust relevant parameter and main shaft match, be like fundamental frequency, base pressure, running frequency upper limit, carrier frequency, alter jump accordingly line. Main shaft did not use conventional means, need according to treatment however, used the electric main shaft that engraving tool uses, an Yanglai needs the ADX80-24Z/1 of peaceful, its bulk small, noise is low, the diameter has 80mm only, such making that facilitating whole of box of whole main shaft is sealed, in can preventing effectively to machine drossy splatter to be caused to the guide screw of Z axis and slideway damage, also make appearance of main shaft box appears beautiful. Its top rotate speed is 24000 turn / cent, make 6000-14000 of regular job rotate speed turns have a likely surplus range. What man-machine interface chooses man-machine electron is general but MD204L of monitor of process designing text, the numerical value that it can wait for in-house register of formal surveillance, modification PLC or relay with character or indicator light reachs position. 3, if the flow chart that software design machine tool works pursues 2 are shown, after switching on the mobile phone, detect first the hand uses switch effective, if the hand uses switch effective, use each hand to move control switch to carry out a hand to move the project of the operation namely. If the hand moves switch to disable, start origin revert program, each axis undertakes revert of machine tool origin, answer other of Z axis farewell first two axes, when all axes just can undertake after origin revert is successful next. If program of cutting tool and tool clamping apparatus, work all did not change, but restoration arrives to machine ready state and do not undertake pair of knives, if need pair of knives, open pair of knife switch to start pair of knife programs, 3 axes are opposite respectively knife, look for workpiece origin namely, use a hand to move speed of switch of each axis shift to move each axis, make 3 faces of workpiece touch the cutting tool that touchs low speed to rotate respectively, just touch on till. After be opposite, press pair of knife OK to affirm, reintroduce knife fills, course program is handled, form workpiece origin namely namely process designing at 0 o'clock, the basis when process designing was calculated according to blueprint this at 0 o'clock cutting tool method, can make handlers thinking clear, editor operation is simple. Handlers is editorial it is user program, can edit cutting tool contrail, it is coordinate of each axis shift, the circular time when still floating rate, loop is machined. When had made up program hind or using current program, namely restoration arrives ready state: Each axis moves initiative, a proper place, assemble and unassemble workpiece is touched expediently, not easily when touching cutting tool, mount workpiece, by start can begin to machine, main shaft runs, cooling fluid leaves, each axis moves by program set coordinate. When treatment ends, machine tool restoration, namely each axis moves again initiative, main shaft stops, refrigeration closes, at this moment but debus workpiece, process of the treatment that finish. Graph the treatment flow chart of 2 workpiece is shown 3 times like the graph, it is with Q7 product exemple, mold holds clip last time 15 workpiece, have 30 φ so 3.

The aperture of flat bottom blind of 7 needs to machine, cutting tool chooses φ 3.

The 2 blade wolfram steel of 7 establishs milling cutter, auger cut treatment, auger cut deepness 1.

65mm. Rely on the fixed position on workbench closely when ready state to secure good mold, press after starting, main shaft rotates, when waiting for main shaft to be about to reach rated rotate speed, axis of X, Y turns to the first working station with fortune, namely value of coordinate of workpiece of the X of the first aperture, Y, right now cooling fluid is opened, Z axis drops to machine an area quickly, namely milling cutter end panel is about to touch workpiece machines a face, change quickly to begin to get into speed with slow worker worker cut treatment. When treatment deepness arrives at set deepness (1.

65mm) when, z axis drives milling cutter to be raised quickly, raised height is square of water of milling cutter end panel to be touched up do not touch workpiece and mold to be accurate. Tally is added 1 hind the program undertakes comparative operation, whether is judgement treatment over, if deny, criterion axis of X, Y continues to run to leave one working station, repeat Z axis to drop again treatment movement. If was machined, crop tally addend, main shaft stops turn, cooling fluid is shut, give out 5s at the same time acousto-optic newspaper dispatch, in order to reminds handlers, each axis moves initiative: Z axis arrives on upright; X axis arrives Zun Duan; Y axis arrives outside upright. After debus mold, cycle of a treatment is finished, mount mold is pressed again start begin to undertake issueing treatment one round namely. 4, a few emphasized electric measure 1.

Advocate loop imposes breaker of outfit leakage of electricity, corresponding loop installs appropriate breaker. 2.

The power source place of PLC and servo is added respectively have power source filter. 3.

Coil receives each dc relay the diode that oppose a summit, communicate contactor coil and receive block look to draw return circuit. 4.

Refrigeration of lubricant, main shaft sets fluid low warning apparatus. 5.

The use screen line such as line of communication of interface of servo control line, man-machine, be far from power supply cord. 6.

The line takes inside towline, use be able to bear or endure those who fold is flexible cable, increase the radius of bend of towline as far as possible. 7.

Driver of transducer and PLC, servo maintain certain distance. CNC Milling