Numerical control machine tool answers reference point breakdown eliminate a method

The hand moves a reference point to operate is the premise that builds department of machine tool coordinate, the first movement after machine tool of great majority numerical control switchs on the mobile phone is the hand moves an operation to wind reference point commonly. If answer reference to nod occurrence breakdown to will not undertake the program is machined, the position that winds reference point forbids to will affect treatment precision truly, appear even accident hitting a car. Analysis and the issue that eliminate to answer reference point breakdown are very necessary. 1.

Center of solid example of operation of machine tool of some numerical control has the main kind that answers reference point breakdown machine tool of 20 numerical control, and buy group by group in installment, systematic sort is more, in student solid example in unit process of cargo bandling, ever had appeared to answer reference point breakdown for many times, got in time eliminating through analysing research. According to working experience, differ in different type on numerical control machine tool of the system, appear does breakdown basically have a reference point the following 5 sort: ? ? of ň of ⒈ of beach of You breed  does not wind reference point, not bright; answers reference point indicator light when the position of reference point does not stabilize; to answer; of deflection of pitch of referenced o'clock sharp to wind reference point, call the police, have call the police information. 2.

Answer reference point trouble removal to the method exceeds Cheng to appearing and call the police, cent is two kinds of circumstances. A kind of circumstance is before winding reference point, the position of reference axis leaves those who cause reference point space is too little. Remove after protection exceeding Cheng, go to reference axis shift inside journey limits, wind reference point operation afresh, can eliminate breakdown; another kind is " reference point decelerate " the trouble that link stopper becomes loose or positional happening change causes, readjust secures link stopper to be able to remove trouble. Answer reference point to owe an amount, reference point indicator light is not bright. Pass the diagnostic function of the machine tool, corresponding below diagnostic page " the position follows error " (DGN800 ～ 802) undertakes checking, if tracking error exceeded the limit of fixed position precision, can adjust servo driver " deflection " potentiometer, make " the position follows error " (the value of DGN800802) is adjacent " 0 " hind, can remove trouble. The breakdown that to appearing the position of reference point does not stabilize, examine the position of link stopper and osculatory case above all, check pulse coder next " 0 pulse " whether to have a problem, check the clearance between electromotor and guide screw finally. If not stable displacement error very hour, attribute last kinds of situation commonly, should eliminate gap, eliminate join to become loose. Reference point rectifies pitch deflection. When processing work, always produce stable displacement error, and the pitch that as it happens is equal to guide screw, so, the problem goes answering reference point to go up. Reference point is to be set in commonly " reference point decelerate " the first after link stopper is unlocked " 0 pulse " go up. When be like link stopper to unlock, coder is in by chance " 0 pulse " around, can appear whole pitch deflection. Need place of readjust decelerate link stopper, had better be decelerate link stopper unlocks the position and coder " 0 pulse " the position differs half pitch. To answering reference point times alarm, have call the police the breakdown of information. In the light of call the police information, examine machine tool manual, make corresponding processing. May information clew belong to: ? Suo gizzard a huge legendary turtle is proud muddled generation of Sui growing permanent teeth melt Bu of こ of arm spread of ability postscript low thorough melt Bu of cochlea of flesh ⑵ shade melt flesh ⑾ low mew asks  shaddock Zhai Shan skirt closes rare  of 6 miscellaneous planning cloth melt? needs to maintain or change; is wrong to parameter setting, need undertakes be installinged afresh by backup parameter. 3.

When a reference point breakdown appearing in unit process of cargo bandling of machine tool of epilogue numerical control, basically happen in a few afore-mentioned respects, the basis answers the principle of reference point, can divide measure ground to undertake discharging checking by order, find crucial place, apply accurate method to remove trouble. CNC Milling