Dear All, I hope you all are fine kindly help me regarding my problem in our machine
ALARM: 1220 NO TOOL CLAMP
Details of checking we performed:
During the working of machine the machine started to give above alarm. We reset the alrm but it again come during machining
- We checked the valve on the back side of machine by clamping /unclamping the tool manually by pressing the blue button on the tool clamp/unclamp valve.
- Checked the air pressure which is 6-7 bar.
- Checked the pipelines physically and found ok.
- Checked the workings of tool clamp/unclamp proximity switches in the ladder diagram in machine and their behavior was found ok. Both sensors are working and showing 1 & 0 during clamping/unclamping.
5. Checked the distance of clamping cone according to the PIC1 using dial indicator on the GUI and checked the Z Value and compare it with the other MCV-720 machine with same specs. There was a slight difference between there cone distances as shown in Table below
Sr No Distance of two points in Working MCV 720 Distance of two points in Problematic MCV 720 1 1.738 2.0350
The table shows that there is almost the difference of 300 points in the cones of machine and the cone of problematic MCV 720 is 300 points more out than working MCV 720.
6. Also before this problem there was another problem in machine. When we rotate the spindle with our hand it rotates but not freely. But in problematic machine when we rotate spindle with hand first it moves freely then after traveling some distance it hits with something like getting locked into something and then start to move normally with the application of force. Also when we open the front cover there was something broken and its pieces were there as shown in pic2
Kindly provide us with your suggestions so we can solve our problem. Thank you.
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