Automatic pitch compensates precision of fixed position of numerical control machine tool functional application

5 are mixed 2) , to can obtain synchronous news report, if discovery is certain data is erroneous in conveying, can increase stop will overcome this problem. The person that 5) hardware handclasp shows the receiver between the computer and numerical control system tells to convey suspends deferent way. Do not lose an any deferent data to assure sink, the some that handclasp is preexistence communication cable changes its voltage value to undertake on specific line, these signal are RTS and CTS normally, but it is DSR and DTR possibly also. 4, try out examination and receive data above all the computer receives some parameter from inside numerical control system, it is normal that examination computer is received, get machine tool former parameter from inside numerical control system again next. Graph the 4 5 of measure of 5 errors compensation, parameter that affirms compensation data detail is received is regarded as to be by automatic compensation software " parameter of old machine tool " , how is before system of machine tool numerical control is being compensated, they mirror instead configured, gotten machine tool parameter stocks computer hard disk to go up, its file type is OMP, need to be gotten 1 times only to be the same as 1 type product, need not get a machine tool every time. Graph 6 errors compensate move 5 graphs 6 6 of measure of 7 errors compensation, choice is measured axis and keying in detail to define target position is to collect software automatically to be able to collect the fixed position error of disperse along axis be metricaled. And the compensation value that these target positions and computation of software of automatic later compensation give is in the position and do not have direct connection. Because each error compensates a value,computation gets. Because this defines buy of eye scalar potential to need not be set with error compensation point,be identical, at the same time eye punctuation is counted also need not with calculative compensation check the number is same later. Must be in to assure next undertaking to repeat premise of requirement of up to mark of fixed position precision by the precondition of compensation axis especially. 7, before undertaking to clear of compensating parameter of error of axis be metricaled compensating, must will be compensated in numerical control system first axial backlash and to clear of unit of pitch error compensating parameter, when avoiding to measuring position error of each eye punctuation to be worth, former compensation cost still acts well. 1) pointwise mixes backlash to clear of unit of pitch error compensating parameter. 2) compensates those who compensate an axis functional invalidation. 3) is set of compensation scale factor 0. After afore-mentioned jobs are finished, close machine, return reference point, ensure absolutely coordinate and machine coordinate are identical. 8, adjust laser and optical lens to be compensated certainly above all axis, adjust laser and optical lens to achieve measure condition. 9, generation eye punctuation locates to measure numerical control machine tool error, must make rod be metricaled a series of target positions, make component of machine tool motion ordinal collect data well and truly in each target position. Does target position include: ? Edge of 9 1) of measure of? error compensation is measured chief target position of the axis. 2) edge is measured of the axis most end end position. 3) photograph adjacent looks be apart from between scalar potential buy. 4) place wants target check the number. The spacing that looks when the from beginning to end of axis be metricaled punctuation cannot be operated as softly as machine tool journey, forcedly is installed together, should want to consider ≥ 0.

The system of ordinary numerical control of; of the value that jump over Cheng of 1mm asks the error compensates a value to be calculated according to reference point. Because this reference point must be located in between compensation length from beginning to end. But when target of axis be metricaled distributings among them some target is nodded and not particular demand is on reference point. Graph 9 targets distributing 10, make name of program of part program 1) or program name automatically identifying of in order to stocks the software in numerical control system. 2) axis name is to point to axis be metricaled. 3) runs a frequency to use ≥ 1 times. Moving time is more, its compensation result is more accurate. Most system compensation is to take the average error value that each target nods on direction of positive and negative to calculate compensate a value. Graph direction of loop of 10 4) of measure of 10 errors compensation is used two-way. Two-way it is to point to component of machine tool motion with positive and negative two direction move respectively each target position, also considered compensation backlash error at the same time. 5) suspends cycle using ≥ 2s. Suspending cycle is to show component of machine tool motion is in some target position looks to Youxiayi the suspensive time before scalar potential buy, the attention is the least stop cycle to cannot be more than a machine tool to suspend time, otherwise error data also is not collected forever. General the smallest stop cycle to set the in part that suspends cycle for the machine tool. 6) jumps over Cheng value to use ≥ 0.

1mm. Jumping over Cheng is to point to the place of target of from beginning to end that measuring length the area of inverting of two upright tune, basically be to consider component of machine tool motion to eliminate any retrorse errors when inverting. 7) feed is decided according to machine tool product. Feed is to show component of machine tool motion looks in some scalar potential buy arrives the feed rate to next target position. 8) data collects means to use linear means. Have additionally swing law or etc means of a flight of stairs is optional. After afore-mentioned set the editor is completed, program of machine tool exercise stocks computer hard disk automatically, its file type is RPP, type of different machine tool product needs an editor only and save rise, the v when need comes can. If produce program of new machine tool exercise, need to enclothe this RPP file only can. The computer produces program of machine tool exercise automatically to be as follows: 00023 (ERRORCOMPENSATIONRENISHAW) N0030G01G94 N0040G90F1000 #1=0 #2=5N0070(LOOPSTART) G04X1.

G01Z000.

000G04X5.

G04X5.

G01Z050.

000.

.

G01Z000.

000G04X5.

#1=#1+ 1IF[#1NE#2]GO70 M30 11, convey athletic program to install numerical control system above all to numerical control system to receive data status, the Cheng serial number that should note a deferent file or program name cannot with numerical control there already was program number in the system or program name is same. If produce system of wrong and ordinary numerical control,reject to receive an order and give an erroneous information. 12, collect primitive data and analyse data to adjust laser to measure condition, use automatic data to collect means, numerical control system sends executive computer the athletic order that gives a machine tool. Should notice the feed rate numerical control system is reduced right now, lest produce collision. The basis that at present laser measures precision of position of numerical control machine tool is GB/T16462-1996 " precision of numerical control center lathe examines standard " . Use linear data to collect means, basically be to consider what when the machine tool moves, bring to warm up smaller. Data will be collected to stock computer hard disk after measuring an end, its file type is RTL file format, measure an outcome according to measuring analytic software to examine next. 13, the average error cost that cost of generation error compensation had included automatic compensation software to look in circulating each punctuation place is measured each in RTL file now, automatic compensation software can be calculated automatically a compensation cost, numerical control system is compensating scale factor deflection error the value undertakes the position amends the compensation that will finish pitch error inside limits. Graph 11 compensating parameter 14, the error compensation cost that the error compensation cost conveys to check compensation effect to will compensate software computation automatically to go out to numerical control system stocks computer hard disk, its file type is NMP file. Give consideration the error to compensate a value to convey numerical control system, execute order of machine tool motion again next, collect the position error data of each eye punctuation afresh. 15, examination compensation analyses software through measuring as a result, basis GB/T16462-1996 " precision of numerical control center lathe examines standard " , data processing and criterion for evaluation undertake according to GB17421-2000 standard or international standard whether assess machine tool is by the position error of compensation axis inside tolerancepublic errand limits. If achieve tolerancepublic errand requirement, criterion if the; of job of compensation of machine tool position error that finish did not achieve tolerancepublic errand requirement or need more precision requirement, can adopt increase a target to check the number is measured and repeat position error to compensate a process in order to achieve the most satisfactory compensation result. The graph analyses a scheme as a result before 12 compensation the result after 13 compensation is analysed 3, the development that the proposal pitch error that uses to function of pitch error compensation compensates a function raised precision of fixed position of numerical control machine tool not only, and shortened production is periodic, still can reduce machine tool cost at the same time (can reduce) of grade of ball guide screw. Want to do the auxiliary work of good from beginning to end when use pitch error compensates a function. 1) must ensure before laser is measured the geometrical precision qualification of the machine tool reachs the integrality that the machine tool assembles, or undertake metrical below the premise that does not affect laser to measure an outcome. 2) must is in to ensure to undertake pitch is compensated below the premise that repeats qualification of fixed position precision by compensation axis. 3) undertakes machine tool of pitch compensatory numerical control should be in before leave factory " checklist of machine tool precision " or " parameter of machine tool electric equipment is expressed " on made clear this machine tool to use pitch compensating parameter, give an user list of compensating parameter of pitch of accessary machine tool. 4) should make good number in the machine tool reference point of set of the place when pitch is compensated, and be in " checklist of machine tool precision " or " machine tool operation instruction handbook " on show its use. The machine tool reference point of 5) same product asks to unite when set. CNC Milling CNC Machining