Project Description

The PAMA Horizontal Machining Centre in operation at the End customer Location (M/s Caterpillar India, Thiruvallur) is reported to be facing problem of positioning accuracy and repeatability in X axis; the customer remarks based on their observations indicate that the X direction home position or any parked position in X direction tend to change its value after a certain period of NO ACTIVITY on the machine operation.

The above observations were also mainly around a relatively longer duration of stoppage of machine (like overnight or duration of 1- 2 hour machine non-operation)

A test plan was worked out to investigate the reported problem; a combination of electrical signal sensors & mechanical position sensors were used through the test cycle.

A series of combined electrical and mechanical tests were conducted to analyze the source of the problem and a comprehensive action plan is recommended for implementation to do away with the problem