The position on numerical control machine tool detects device installs the workbench in the machine tool or guide screw to go up normally, be equivalent to the eye of the dial of general accuracy machine tool and operator, automatic detect the displacement quantity of workbench ceaselessly come out and feedback to control a system. A large number of facts prove, to designing machine tool of perfected high accuracy numerical control, its treatment precision and fixed position precision basically will depend on detect device. Accordingly, nicety detects device is machine tool of high accuracy numerical control is important assure. Generally speaking, use on numerical control machine tool detect device should satisfy the following requirement: 1. The job is reliable, interference rejection sex is strong. 2.
Can satisfy the requirement of precision and speed. 3.
Use safeguard convenient, fit the working environment of the machine tool. 4.
Cost is not high, cheap and fine. Normally, numerical control machine tool detects of device detect precision is 0.
001~0.
01mm/m, resolution is 0.
001~0.
01mm/m, workbench of can contented machine tool moves with the speed of 1~10m/min. CNC Milling