【正文】 res, the general size of the work piece can be effectively guaranteed. CNC Turning CNC program is based on automated processing, the actual processing, and the operator only has a strong ability to use the program instructions and a wealth of practical skills in order to produce highquality processing, processing highquality work piece. Six, CNC machine tool troubleshooting methods and their attention to matters Missions usually take part in because of repair, some repair experience, bined with the relevant theories are described in the following list, to initiate. First, troubleshooting methods (1) initialization reset Law: Under normal circumstances, because of instantaneous alarm system failure can be 機械專業(yè)中英文文獻翻譯 hardware reset or system power switch in order to remove the fault, if the system is down because of the storage area, plug the circuit board or battery less pressure lead to confusion, it must be clear to initialize the system, removing the former should pay attention to make copies of recorded data, if initialization can not be ruled out after the failure remains, were carried out in hardware diagnosis. (2) Parameters to change, actual procedures: system parameters are determined based on system functions, parameter settings may cause system errors or failures of a functional null and void. Sometimes, because of procedural errors can be caused by user downtime, this system can be used to block search function to check and correct all errors, in order to ensure its normal operation. (3) Regulation, the best method of adjustment: adjustment is one of the simplest ways. By adjusting the potentiometer to amend system failures. Repair such as in a factory, the system displays chaotic scene, with normal postconditioning. Such as in a factory, the spindle brake at startup and skidding when belt because of its large spindle load torque, and drives set the rampup time is too small, the normal postconditioning. Optimize the system to adjust servo drive system with mechanical drag system the best way to match the General regulation, the approach is very simple, with a multiline recorder or dual trace storage oscilloscope, respectively, observe instructions and the speed of feedback or response to the relationship between current feedback. By adjusting the ratio of the speed regulator factors and integration time to achieve servo system so that there are high dynamic response characteristics, but not the best job status oscillation. NOT at the scene of the oscilloscope or recorder circumstances, based on experience, that is, adjust so that the electrical startup, and then slowly adjust to the reverse, until you can eliminate the shock. (4) spare parts to replace the Law: The best diagnosis of spare parts to replace bad circuit board, and start to do the initialization, so that the normal operation of machine tools quickly, and then repair or rework bad board, which is currently the most monly used anti approach it. (5) To improve the quality of the power law: the use of the existing power supply, to improve the power supply fluctuations. For highfrequency interference filtering capacitor can be used by these preventive measures to reduce the power supply board failure. (6) Maintenance of informationtracking: some large manufacturing pany based on actual work because of design defects caused by accidental failure, continuously modify and improve the system software or hardware. These changes to the form of constant repair information available to maintenance personnel. Used as the basis for troubleshooting can be pletely right troubleshooting. Second, the repair should pay attention to matters (1) removed from a whole block on the circuit board, the Record should be noted that the relative position should be to connect the cable number, for fixed installation of the circuit board, it should be removed before and after the pressfit parts and screws for the record. Demolition under the pressure parts and screws should be placed on a dedicated box, so as to avoid loss, the assembly, the box should be all things to use, or inplete assembly. (2) Electric iron should be placed on the front easily, away from the circuit board repair. Jerdonii Dressing should be appropriate in order to adapt to the welding circuit and to avoid bumps when welding other ponents. 機械專業(yè)中英文文獻翻譯 (3) Measuring the resistance between lines should be off the power, measured resistance should be measured the exchange of red and black table pen twice a year to a large value for the reference value. (4) Circuit board has solder brush most films, it should be measured to find the corresponding point of the solder joint as a test, not to eradicate the solder film, there is some insulation board all the brush layer, only in the spot with a blade scratch Department insulating layer. (5) Should not be arbitrarily cut off the printed circuit. Some maintenance personnel must have experience in repair of household appliances, used to check the line, but the numerical control equipment on the circuit boards are doublesided or multihole metal plate of plate, printing and dense fineline, once cut off the hard welding, and easy to cut off tangent when the adjacent line, again some point, a cut off at one line, and should not make it and line out, need to do to cut off a few lines. (6) Should not be removed ponents. Some maintenance personnel to determine fault ponents in the absence of circumstances that is the seat of your pants a ponent breaks down, removed immediately, so that a higher rate of miscarriage of justice, human element removed have a higher failure rate. (7) Should be used to demolish suction devices and suction devices tin rope, should not have the hardware check. Long time heating pad should not be the same and repeat the demolition in order to avoid pad damage.