Vertical machining center does not catch the reason of the knife and solution

The electromagnetism a powerful person of knife library or magnetic induction switch cause what machining center of vertical of VMC750 of 　 　 　 uses is to change knife way directly, the movement of knife library has swing and rotate two kinds. Through a powerful person of a magnetism of 3 5 electrify control air cylinder drives knife library to swing; Pass an electric machinery of single-phase knife library to realize the whirl of knife library. There is switch of one advance gradually to use knife library to note number in knife library. When changing a knife, knife library should place main shaft position first, broach shell of replace of primary cutting tool, just rotate next knife library finds a cutting tool to be caught again. The main shaft position of knife library and former it is two magnetic switch that go up by knife library air cylinder will judge. Give trouble when electromagnetism a powerful person and magnetic switch, and call the police [when 39-12] , knife library did not place main shaft inside formulary time; [When 39-15] , knife library was not placed inside formulary time former. Want to check electromagnetism a powerful person to whether have an action right now, if swing,knife library listens all the time the behavioral voice that is less than electromagnetism a powerful person, be about the stand or fall that the hand uses examination a powerful person (had better carry the output of a powerful person right now disconnect) , if bad change. 2.

Solely if a powerful person is correct,disaster board attaint causes 　 　 , be about to examine the position that I/O switch estimates: Advocate SPDL000:0 of ＿ of SLIDRUM of position of axle0/15 or former a SLIDRUM ＿ PARK000:0Whether has the signal of 0/16 given out. The examination is smooth the corresponding 24V n signal on disaster board, board whether do the insurance that go up and the signal 110V voltage that from light disaster board comes out send to electromagnetism a powerful person, check each signal voltage all the way but failure isolation dot. The possibility that normally insurance canal and smooth disaster canal damage is some more, it is good to buy same vitreous insurance valve or smooth disaster canal to be changed. 3.

The 3 switch quantity in main shaft box is incorrect the condition after causing 　 　 main shaft to grab a knife is true was by the switch of 3 advance gradually in main shaft box (SQ7 clamp switch, SQ8 loose switch, SQ9 does not have knife switch) will judge. These 3 switch show a triangle to distributing, part the different place that air cylinder of inductive loose broach runs. Right positional switch amount should be (1) normal does not have a knife: Light of SQ9, SQ7 is bright; (2) normal has a knife: SQ7 light is bright; (3) the Dao Jian that press a pine: SQ8 light is bright. Cannot grabbing a knife normally is condition of these 3 switch incorrect. Call the police code name is [39-4] : Pull rod breakdown; [39-13] : Pull rod is loose breakdown; [39-14] : Breakdown of pull rod clamp; [39-34] : Cutting tool is done not have by clamp. Appear these a few kinds call the police to be concerned with switch of these 3 advance gradually, need checks switch stand or fall, adjust appropriate position, make switch quantity directive correct. 4.

If knife handle gets stuck dead,mechanical check causes 　 　 to death, can hear air cylinder by loose Dao Jian next pressing sound, but small knife takes off no less than coming namely. Because knife handle did not notice to maintain and rust,this is, or because iron filings is contained on main shaft taper hole or knife handle,cause card to die. Need to press loose Dao Jian to be not put only right now, in affirm Qing Dynasty condition issues depressive of loose broach air cylinder, action of the set each other off that use wood the brim at knife handle, cutting tool light clap falls. It is pull rod gets stuck dead again, this tears open drive main shaft with respect to need, knock pull rod piece, right now pull rod surface can have nick normally, if serious, need to drop nick mill, heavy static knock can. It is bit body machinery gets stuck dead sometimes, clear besides machinery outside blocking the scrap in bit body, requirement operation personnel keeps clear of in time the scrap in knife library, maintain the cleanness of knife library and knife handle. 5.

Knife library writes down several switch incorrect cause library of 　 　 knife to write down several switch incorrect also can cause cannot finish correctly change a knife or grab a knife. Call the police have [39-38] : Broach shell did not turn to proper place; [39-44] : Knife library cannot place main shaft. Should check switch to whether damage, adjust switch condition to arrive proper inductive place. 6.

CNC system breakdown causes the appearance with also had been come up against strange in 　 　 maintenance, equipment is started normally, through self check, lade 2 system, electrify, calibration mechanical at 0 o'clock, when back-to-back calibration knife library, knife library both neither can be rotational, also cannot swing. Look carefully at I/O switch quantity, discovery bolts by Fl (PARK former) the key that reach F2 (SPDL main shaft) , PARK of ＿ of switch quantity PRIDRUM and PRIDRUM ＿ SPDL all are 0, explain signal did not give out, knife library is natural won't movement. Check self check watch, discovery is left advocate board, on the right side of advocate board, screen of bridge board, servo board, I/O board, feeling reachs clavier board to wait is to be passed normally. But when opening electric ark to check, discover CNC system however bridge board indicator light is incorrect. The trade that carries two machine tools experiments quite, nod breakdown finally the lock to be surely on bridge board, after changing, restore. 7.

Machine tool protection causes 　 　 sometimes because be operated by accident, make the machine tool protects a movement, cannot grab a knife correctly thereby, need to press only right now stop switch urgently afresh 2 electrify, or close directly machine, start afresh can restore. Of course, cannot catch correctly knife and change a knife to still have various reasons, still want specific issue concrete analysis. CNC Milling CNC Machining