Through the analysis of the structural characteristics and secondary processing technology of the die casting gearbox intermediate plate

it is found that the main factors affecting the insufficient engineering capacity of the product include the accuracy of the turntable

the rigidity of the tool

and the thermal variation error of the machining center.Through research and practice

a way to improving the rigidity of cutting tools was presented.In addition

the on-line detection technology was used to discover the influence of the accuracy of the turntable and the thermal variation error of the machining center on the reference point position of the workpiece in time.Then the information was fed back to the machine tool

so as to effectively control the change of the workpiece position degree in a reasonable range

with finally meet the requirements of the product processing engineering capacity.