CNC lathe tool holder problem handling method - Database & Sql Blog Articles

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The application of numerical control technology and numerical control machine tools has successfully solved the automation problems of some medium and small batch parts with complex shapes and high consistency requirements, which not only greatly improved the production efficiency and processing precision, but also reduced the labor intensity of workers. Shortened production preparation cycle.
However, in the process of using CNC lathes, CNC lathes will inevitably have various failures, so the repair of faults becomes the most critical problem for users of CNC lathes.
On the one hand, sales company after-sales service can not be guaranteed in time, on the other hand, mastering some maintenance techniques can quickly determine the fault location, shorten the repair time, and let the equipment run as soon as possible. In daily failures, we often encounter faults such as tool holders, spindles, thread processing, system display, driver, and communication. The tool holder failure and the corresponding solution, I hope to provide some useful lessons for everyone.

Fault phenomenon 1: The reason why the electric knife holder lock is not tight

1 The position of the letter tray is not aligned: Disassemble the top cover of the tool holder, rotate and adjust the position of the letter plate, so that the Hall element of the tool holder is aligned with the magnetic steel, so that the tool position stops at the exact position.

2 system anti-lock time is not long enough: adjust the system anti-lock time parameters (new tool post lock time t = 1.2s can be).

3 Mechanical locking mechanism failure: Disassemble the tool holder, adjust the machine, and check if the positioning pin is broken.

Fault phenomenon 2: One tool number of the electric tool holder can not rotate, and the other tool positions can be rotated.

1 Hall element damage of this bit knife: confirm which tool position makes the tool holder turn non-stop, input the command to rotate the tool position on the system, use the multimeter to measure whether the tool position signal contact has voltage change to +24V contact If there is no change, it can be determined that the tool Hall element is damaged, and the transmitter or Hall element is replaced.

2 This knife position signal line is broken, causing the system to be unable to detect the bit signal: check whether there is an open circuit between the tool position signal and the system connection, and the correct connection can be made.

3 The system's tool position signal receiving circuit has a problem: when it is determined that the tool position Hall element is no problem, and the tool position signal and the system connection are no problem, the main board is replaced.