Synchronism of coordinate of door of dragon of numerical control machine tool studies

Waiterpaley) Abstract: The Actualizing Project And Adjusting Method Which Gantry Groups Axes Used CNC Machine With SINUMERIK 840Dand SIMODRIVE 611D Servo Drive System Are Introduced Here.

Key-Words: Gantryaxis;leadingaxis;synchronizedaxis;DB (Datablock) ;referencingpoint one, the preface need as a result of structure of machine tool itself, assure the integral tigidity of the machine tool and the stability that grow slideway, accordingly to same coordinate introduces drive of synchronous electric machinery, it is the method that factory of current machine tool uses generally. Conduce to the tigidity that raises servo, overcome the positional error that monofilament bar causes, avoid flexibility to be out of shape, ensure the high accuracy of the machine tool. 2, function of axis of synchronism of functional brief introduction is used commonly be in 2 or coordinate of machine tool of many mechanical connective, this coordinate does not have mechanical deflection; On the foundation of process designing, define a synchronous coordinate. When synchronous shift, the system detects current value of the position, whether be in the error limits of systematic set. When the word besides limits of position of drive shaft of deviate of synchronous and accessary axis, the system can stop all coordinate shift, prevent the damage that as a result of different situation mechanical to the machine tool part has effectively. The purpose of synchronous axis function is to detect strictly coordinate is in the mobile precision on slideway. 3, the function of dragon door synchronism that uses synchronous axis function to be used at large planer-type milling machine, each edge surveys circulatory system by the position of own itself. Because mechanical hardware join needs, two drive must absolutely synchronism, already made sure mechanical stress is out of shape. A synchronous group is mixed by axis of a dominant most composition of 2 driven axis. 4, hardware organization and synchronism define planer-type milling machine of large numerical control is by many coordinate unit is comprised (see figure below) . Every coordinate drive is separate drive system, the measurement that has oneself circulates, form a whole coordinate system. When mechanical coordinate is mobile, if pursue X of two groups of coordinate and X1, z and Z1 must assure complete synchronism, can cause to mechanical component otherwise damage. 4. 1 keyword meaning: Group of axis of synchronism of group of ① synchronous axis is comprised by at least one pair of coordinate, include a drive shaft and axle of a driven, these axes are mechanical join. Shift must be controlled by NC at the same time when shift. What what differ is testing system of two coordinate place it is alone. Drive shaft of ② drive shaft is the mechanical coordinate with NC average pilot, can undertake spare parts process designing to its linear or runner shaft coming back. Axial name has a definition by synchronous group. ③ driven axis from east the axis also is undertake controlling by NC, but it always has shift as the shift of drive shaft. Axial name also has a definition by synchronous group. 4. Is definition of coordinate of 2 coordinate definition the: that will define by GANTRY_AXIS_TYPE of machine tool data? ㄒ quicklying  bright owe  of grave of rank Bin of  of Qia brighting instruct to make an appointment with basketry Lin of street of  of Zhu of aperture of C of curtain of  of commission of Qian of reason of Yi of the  that invade Ju rafts border cowardly tip? of Tuan of appropriate of  of curtain of  of Ju of post crucian carp driven axis composition. 4. The group of conditional synchronism axis of group of 3 synchronous axes cannot include axle of main shaft driven cannot be the axial name that axis of driven of fixed position axis cannot be group of another synchronism axis the coordinate of synchronous axis group, every coordinate such as matchs rate, acceleration and trends are answered must agree time 4. Drive shaft of limitation of caution of axis of synchronism of monitoring of error of actual coordinate value and driven axis exceed 3 synchronism group caution limits, NC system output calls the police information: Exceed ultimate range. At the same time PLC outputs signal, make the machine tool stops to move automatically. Synchronous axis journey restricts synchronous axis group to exceed journey range. 5, the reference point of synchronous axis and synchronous set 5. The reference point set of the coordinate of method of reference point setting of 1 drive shaft by the DB of PLC piece undertake, want a foundation coordinate drive type, the designation that undertakes PLC answers reference point process designing. Start this function. The method that start is PLC " Activatereferencing " =1 and " ActivemachinefunctionREF " =1) " Traversingkey+/ – " (DB31, .

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;DBX4.

7/4.

6) the setting is 1. 5. After the reference point of 2 driven axis installs a method to answer reference point to finish when drive shaft, driven axis will wind reference point automatically. The reference point of driven axis is decided by drive shaft. A referenced report action that cannot have driven axis alone. 5. Group of axis of the synchronism after 3 reference point will ask to move automatically according to NC process designing. 6, the machine tool data related to synchronism 6. 1MDNO.

Data of 37100GANTRY_AXIS_TYPE this machine tool is to use a definition 2 groups of synchronous and main character: Whether does this coordinate belong to coordinate of synchronous inter block, it is which coordinate (drive shaft or driven axis) . Provide a posture to set following plans: To 840D system, can configure most 3 synchronous groups. A synchronous group must want to be mixed by a drive shaft least composition of axis of a driven. Cannot repeat again with the axis of the group use, if define a mistake, control system will be outputted " INCORRECTGANTRYMACHINEDATA " information, place of matched stack of synchronism of clew machine tool is wrong. This configuration citing is as follows: 0 do not have synchronous axis group of 1 synchronous axis 1 medium drive shaft group of 11 synchronous axes 1 medium driven axis group of 2 synchronous axes 2 medium drive shaft group of 12 synchronous axes 2 medium driven axes group of 3 synchronous axes 3 medium drive shaft group of 13 synchronous axes 3 medium. 2MDNO.

37110GANTRY_POS_TOL_WARNING and 37120GANTRY_POS_TOL_ERROR these two data are to be machine tool synchronism to serve, assure the normal and synchronous precision of machine tool coordinate, in order to complete the synchronous exercise of the machine tool, whether does pertinent output information exceed the range of machine tool synchronism with clew. After defining these data, machine tool synchronism can try move. 7, synchronous axis signal is described 7. The signal of 1NC control reference axis is described 1. Begin DB31 of synchronous group signal, .

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DBX29.

4;Startgantrysynchronization makes machine tool synchronism begins to move, make sure simultaneous error is in limit, otherwise this signal buy 0. 2. Begin DB31 of signal of automatic and synchronous group, .

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DBX29.

5;Startautomaticsynchronization begins to run synchronous group automatically, as congener as last signal. 7. The 2 signal that come from reference axis are described 1. DB31 of synchronous and mobile limits of error, .

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DBX101.

The whether synchronous signal that 2;Gantrytriplimitexceeded system issues. Be accepted by PLC and handle. 2. DB31 of synchronous caution limit, .

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DBX101.

3;Gantrywarninglimitexceeded is Alexandrine. 3. Synchronous axis synchronism begins DB31, .

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DBX101.

4;Gantrysynchronizationreadytostart4. Synchronous axis group is in synchronous DB31, .

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DBX101.

Signal of synchronism of 5;Gantrygroupingissynchronized specific coordinate expresses as follows: DB date content is general signal 11 - 14 5.

Signal of channel of function of REF of the 2 machine tools that start 21 - 28 33.

0 reference point start coordinate signal 31, .

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; 60.

4, 60.

5 synchronous reference point 31, .

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; 29.

4 begin synchronous signal 31, .

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; 29.

5 without automatic synchronism 31, .

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; 101.

Limit of 2 synchronous journeys 31, .

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; 101.

Limit of 3 synchronous caution 31, .

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; 101.

4 synchronism get ready 31, .

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; 101.

5 synchronism group is synchronous already 31, .

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; 101.

6 synchronous group axes get ready 8, establish group of a synchronous axis group group definition: 1 ＝ drive shaft uses coordinate increment measures pass on circular coordinate axis of 3 ＝ driven uses increment to measure pass on a loop the first pace: Revise data of the following machine tool the 2nd pace: Install the setting of program of PLC of NCKPLC interface signal: Axis1 setting: DB31, .

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;DBX29.

4=0DB31, .

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;DBX29.

5=1Axis3 buy: DB31, .

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;DBX29.

4=0 machine tool prepares signal setting: DB31, .

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;DBB101 the 3rd pace: Set MD37110:GANTRY_POS_TOL_WARNING and 37120:GANTRY_POS_TOL_ERROR installs MD37130:G for the maximum reference point of coordinateThe size of data of ANTRY_POS_TOL_REF this coordinate and correlation are as follows: The 4th pace: The setting is finished, adjust machine tool parameter to match. 9, synchronism of coordinate of last word machine tool is the practical fundamental technology in applying actually, want the machine tool tigidity that uses according to place and structure, use different configuration, ability achieves the machine tool precision that place should achieve to ask. CNC Milling