Reduced machine accuracy? Five solutions to get it done(below)

In the actual operation, the machine tool will reduce the accuracy for various reasons, which is not very troublesome. So today the lathe machine manufacturer continues to talk about 5 situations and solutions that will reduce the accuracy of the machine tool.

Case 4: The workpiece size differs from the actual size by a few millimeters, or there is a large change in one axis

There are generally five reasons for this:

First, the positioning speed is too fast, and the drive and motor cannot respond in time;

The second is that the mechanical carriage screw and bearing are too tight after long-term friction loss;

Third, the knife of the knife holder is loose and not locked tightly;

The fourth is the editing program error, which ends without echoing or canceling the knife compensation;

Fifth, the electronic gear ratio or step angle of the system is set incorrectly.

Solution:

(1) The fast positioning speed is too fast, then adjust the speed of G0 appropriately, cutting acceleration and deceleration speed and time to make the driver and motor work normally at the rated operating frequency;

(2) If the carriage and screw crane bearings become too tight after the heavy duty lathe machine is worn, it can be adjusted and repaired;

(3) If the knife holder is too loose after changing the tool holder, check whether the tool holder reversal time meets the specific tool, and at the same time check the turbine worm inside the tool holder for wear, clearance, etc., to confirm whether the installation is proper;

(4) If it is caused by a program, you must modify the program, improve it in accordance with the requirements of the workpiece drawing, choose a reasonable processing technology, and write the correct program in accordance with the instructions of the instruction;

(5) If the size deviation is found to be too large, check whether the system parameters are set properly, especially whether the parameters such as the electronic gear and the step angle are damaged. This phenomenon can be measured by using a dial indicator.

Heavy Duty Lathe Machine

Case 5: The machining arc effect is not ideal, and the size is not in place

There are generally five reasons for this:

One is the resonance caused by the overlap of vibration frequency;

Second, the processing technology is unreasonable;

Third, the parameter setting is unreasonable, the feed speed is too large, and the arc processing is out of step;

Fourth, looseness caused by large screw clearance or out-of-step caused by excessive screw tightening;

Fifth, the timing belt is worn.

Solution:

(1) Find out the parts that cause resonance, change its frequency, and avoid resonance;

(2) Improve the processing technology of workpiece materials and reasonably compile procedures;

(3) For stepping motors, the processing rate cannot be set too large;

(4) The machine tool must be installed firmly and placed horizontally and smoothly. At the same time, pay attention to the problem of excessive tightening, increased gaps or loose tool holders.

(5) The timing belt can be worn directly by replacing the timing belt.

Finally, I would like to remind everyone that before repairing and maintaining a vertical lathe, you must first carefully observe the specific situation of the machine tool. After you have a complete and comprehensive understanding of the machine tool problem, you can proceed to the next step. Only after a comprehensive understanding of the problem can the maintenance and repair of the machine tool be performed. Otherwise, it may not only cause difficulties in production and processing, but also affect the personal safety of the operator. Therefore, grasping the complete machine specific information must be the first step in solving machine tool problems.