Solve the method of breakdown of milling machine of boring of door of numerical control dragon

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  • source:BERO CNC Machining
Since we had known why to can appear such breakdown, be about the relevant component that one by one goes to eliminating to cause trouble. 34060REFPMAXMARKERDIST of data of machine tool of examination of analysis of breakdown of milling machine of boring of door of numerical control dragon (the largest space between the 0 mark that definition trigger is started and follow) former set value is 200, every shift 200mm passes theoretic X axis to labelled at 0 o'clock surely, data of modification machine tool has one to labelled at 0 o'clock inside the 34060 distances that are the 300 shift when ensuring X axis clears, breakdown did not remove to fall in JOG mode of operation, can regular point uses rod of X, Y, Z, laser detects the fixed position precision of X axis and relocation precision are in machine tool limit. Below AUTO mode of operation, machine program cannot move, data of modification machine tool 20700 by 0 instead 1 (definition machine tool need not clear to be able to implement machine program automatically circularly) hind, machine program can move automatically, but the machine tool uses G code (G54~G59) the workpiece coordinate that builds is incorrect, the machine tool is other the function is normal. Be checked through above and check, preliminary decide axis of machine tool X clears the reason of breakdown is a machine tool when removing, bring grating rule be taken out from inside grating feet box and answer the attaint when outfit 0 mark. Checking grating feet area, discovery has on grating tape smeary with scratch trace, trouble still cannot remove after cleaning, grating feet takes physics to injure cannot repair. Throw production as soon as possible for the machine tool (buy grating feet newly to need 1~3 of the month order goods periodic) , instead of axis of decision general X half closed circuit, information of feedback of coder of the buy inside electric machinery of servo of use X axis makes positional ring, complete closed circuit changes method of half closed circuit to be as follows. 1. The data of 34200 machine tools of modification X axis (by 3 instead 1) , the area of return-to-zero mode instead of X axis spacing hits a return-to-zero mode. (N6i6l.

}9N:w0Y:N.

　 of 　 of O#_0k-~ 　 　 2. Make and install machinery to bump piece, increase a spacing journey switch that puts in small incidental expenses 's charge, adjust spacing journey switch and machinery to bump piece the position, the input signal of switch of join spacing journey inputs module to the DMP of PLC. 3. Use STEP7 software modifies PLC program, read the input signal that take and processes spacing journey switch, will the 2nd survey a system effective instead the first survey a system effective. Use STEP7 software revises FC30 functional piece content is as follows. M009:SM59.

1 (X axis feed makes can, the machine tool prepares to clear) A137.

7 (read the input signal that takes spacing journey switch) ＝ DB31.

DBX12.

7 (begin to search 0 pulse signal) RDB31.

DB × 2.

1RDB31.

DB × 21.

7RDB31.

DB × 1.

6 (the 2nd measure a system to disable) SDB31.

DB × 1.

5 (the first survey a system effective) . 4. The data of 32700 machine tools of modification X axis (by 1 instead 0) , the pitch error that cancels X axis is compensated (the ability when complete closed circuit needs) , the Back-flash that measures the backlash of X axis to compensate X axis (0) in. 5. Adjust X axis data of milling machine of boring of door of dragon of relevant numerical control, the system that reduces X axis checks precision, be worth the 36400ContourTol data of X axis by 0 original.

02 adjust for 0.

03, be worth the 36030Stand-stillposTol data of X axis by 0 original.

02 adjust for 0.

03, eliminate the system after changing half closed circuit by complete closed circuit 25050 (AxisX1con-tourmonitoring) and 25040 (AxisX1standstillmoni-toring) call the police twice. Resolved the trouble of milling machine of boring of door of numerical control dragon quickly through above measure, although the precision of axis of X of milling machine of boring of door of numerical control dragon drops somewhat, but machine tool basic skill can be normal, and precision of milling machine of boring of door of dragon of the numerical control after repair satisfies manufacturing requirement completely. Origin: Limited company of machinery of Heibei constant Wei CNC Milling CNC Machining