Based on the drilling machining center in PLC

Abstract: the main discussion of 28 sv11t type PLC controller application in the center of the drilling machine. Process mainly divided into the central station, deep hole drilling processes, hinge/boring cutter machining process, and the automatic tool change process, etc. Keywords: 28 VFDS - sv PLC V inverter PG05 positioning function 1 introduction in recent years in promoting more PLC and communication module, 28 sv transistor output PLC controller with its powerful pulse acquisition, pulse output function, as well as support for the position of the rich control instruction by a lot of attention, show the broad application prospect. Application of 28 sv11t host in the center of the drilling machine, use the built-in high-speed pulse output control four road 200 k 3 V series inverter ( By extending the PG card) Speed and a mitsubishi servo positioning, make it convenient to switch in different process of different processing speed, guarantee in different processing operations, such as drilling, boring of the machining accuracy. 2 hole machining center process automatic machining process automatic process is divided into three processes, respectively center drill machining process, the deep hole drilling process and reamer & boring cutter machining process, specific as follows: ( 1) Center drill process start signal Y20 = OUT Y30 = OUT Y40 = OUTX63 = 1 X64 = 0 center drill servo artifacts direction fast moving, to set up the workpiece coordinate zero ( Center drill) Y0 Y1 servo feed rate, depth of processing ( The user can be adjusted) Spindle speed center drill Y60 = 1 cutting fluid Y55 = 1 complete feed movement, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of processing complete feed movement, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of processing to perform automatic mode tool change process ( 2) Deep hole drilling process start signal Y20 = OUT Y30 = OUT Y40 = OUTX63 = 0 X64 = 1 deep hole drill servo artifacts direction fast moving, to set up the workpiece coordinate zero ( Deep hole drill) Y0 Y1 servo feed rate, depth of peck drilling ( The user can be adjusted) Spindle speed deep hole drilling and cutting fluid Y55 Y61 = 1 = 1 power head drill handle hole action feed action is complete, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of pecking type drilling power head drill handle hole action feed action is complete, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of pecking type drilling power head drill handle hole action to perform automatic mode tool change process ( 3) Reamer & boring cutter machining process start signal Y20 = OUT Y30 = OUT Y40 = 1 X64 OUTX63 = = 1 reamer & boring tool servo artifacts direction fast moving, to set up the workpiece coordinate zero ( Reamer & boring cutter) Servo feed rate, depth of processing ( The user can be adjusted) Spindle speed reamer & boring cutter cutting fluid Y55 Y62 = 1 = 1 complete feed movement, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of processing complete feed movement, back to the workpiece coordinate zero, (1) (2) (3) hydraulic rotary rotary rotary motion action back complete servo feed rate, depth of the machining tool change process to perform automatic mode 2. 2 in the knife tool change processes can be divided into automatic mode tool change process and tool change process of two kinds of manual mode. ( 1) Automatic mode tool change process servo do back to the origin ( As in the origin skip) X15 origin reply mark X16 buffer point ON the tool changer stop halfway back to the origin of action to slow down to X17 in cutting point ON the way is not detected in knife buffer point will turn quickly after back to the origin, the detected change knife point buffer X16 ON X17 to slow down to change cutting point ON the inverter do spindle fixed Angle fixed Angle mark X51 knife library forward X57 above dozen pine knife knife cylinder action ON spindle X20 X30 X40 ON servo do back to the origin X15 knife library rotation completes a workstation X52 X55 ON knife library rotation is complete, confirm the fixed Angle, normal play dao cylinder loose state normal X20 X30 X40 is still ON the servo, quickly detect buffer point tool changer X16 ON X17 to slow down to change cutting point ON a knife cylinder return X50 ON knife library back X57 ON ( 2) Manual mode in the process of origin: cutter, knife back library, library rotation, knife library orientation hardware key X21 X31 X41 individual dozen pine knife knife cylinder action X15 back to the origin, main shaft Angle symbol and spindle fixed Angle in cutting point: library, knife library retreat, X17 signs ON fixed point in point and main shaft fixed Angle to complete and knife library forward in place: alternating soft keys ( Human machine interface) All dozen pine knife knife cylinder action ( Alternating) , mark X57 X17 ON fixed Angle ON change point and main shaft fixed Angle to complete and knife library forward in place and loosened state normal: arbitrary point servo executable slowly up and down, Knife library back in situ) : hardware key individual dozen pine knife knife cylinder servo can perform a given action speed fluctuation flow tool change hands operation can perform automatic mode 3 variable frequency speed regulation and positioning control variable frequency speed regulation used in V series inverter, matching PG05 encoder card, sent via PLC controller host pulse frequency to control the speed of inverter. Instruction set parameters need to set the inverter frequency source for pulse input.
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