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Reasons for failure of small CNC lathe
The turret does not turn or stuck
1, spring break. Remedy: replace the spring, pay attention to two pairs of pins do not get confused. 2, the clutch guide pin broken. Remedy: Replace the guide pin, pay attention to the clutch and screw connected to the pin hole position. 3, the spindle is bent or broken. Remedy: Replace the spindle, the replacement method to refer to the corresponding knife model of the spindle instructions may not be arbitrarily change the spindle size, otherwise it will seriously affect the life of the tool holder. 4, the outer end of the tooth plate at the guide pin fracture. Exclusion method: replace the guide pin, pay attention to the outer end of the tooth plate, nut, on the knife body position relationship. 5, turret position, but the knife to a number of knife position, and can not be fixed at any knife position. Remedy: Detect the static and dynamic parameters of the Hall element. If the parameters are not correct, replace the components. Replace the CPU board and position the board.
Knife lock is not tight
1, the letter disc position is not correct. Remedy: Remove the top cover of the tool holder, rotate and adjust the position of the disc, so that the Hall element of the tool holder is aligned with the magnet so that the tool position stops at the exact position. 2, the system lock time is not long enough. Exclusion method: adjust the system lock time parameters can be (new turret lock time t = 1.2s can). 3, mechanical locking mechanism failure. Remedy: Remove the tool holder, adjust the machine, and check the positioning pin is broken.
Tool holder accuracy is not allowed
1, knife lock is not tight. Remedy: Extend the turret lock time. 2, broken teeth at the garbage. Remedy: Remove the turret, remove the garbage, clean the parts, rotate the part plus clean butter, add part of the end of the clean oil. 3, on the knife body pressure mold parts compression deformation of the gear teeth bad. Remedy: Replace the upper body. 4, knife or non-stop or knife in a knife position non-stop. Remedy: Check whether there is a short circuit or open circuit. 5, Hall element and magnet height position are not allowed. Remedy: Adjust the relative position of the Hall element to the magnet.
Motor failure
1, three-phase power line phase sequence reverse. Remedy: immediately cut off the power, adjust the three-phase power phase sequence. 2, the voltage is too low. Remedy: to be used after the power supply voltage is normal or increase a stable voltage to provide a regulated power supply. 3, the motor is damaged. Remedy: Replace the motor.
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