Related Glossary Terms
Reaction in dynamic motion systems where potential energy that was created while the object was in motion is released when the object stops. Release of this potential energy or inertia causes the device to quickly snap backward relative to the last direction of motion. Backlash can cause a system’s final resting position to be different from what was intended and from where the control system intended to stop the device.
- computer numerical control ( CNC)
computer numerical control ( CNC)
Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.
Machining operation in which a tap, with teeth on its periphery, cuts internal threads in a predrilled hole having a smaller diameter than the tap diameter. Threads are formed by a combined rotary and axial-relative motion between tap and workpiece. See tap.
Zagar Inc., bundles its MQ150SU with a dual axis CNC control package for a broad range of ferrous and non-ferrous drilling and tapping. The combination is intended as a good first choice for a variety of applications, as well as for optimizing current operations and can be integrated into more robust drill and tap applications.
The MQ150SU is a sealed unit version of the company’s popular MQ150, featuring an internal synthetic lubrication system and grease packed bearings for long life and operation in any position. The feed unit uses a ball screw on the center line of a hardened, precision, 55mm diameter quill. It is precision ground, pre-loaded with zero backlash. An involute spline driven spindle uses EP7 high precision bearings and the unit features an HSK-32C Spindle nose supplied connection with clamping cartridge assembly.
The dual axis controller uses standard CNC commands and features an internal motion processor and PLC. A 10.4" color display and operator’s panel is user friendly. Two servo motors and two servo drives for spindle and feed axis are included, as well as motor cables.
The combination is well-suited for numerous drilling and tapping applications in stainless steel, CRS and aluminum, with maximum spindle speeds of 5,000 RPM.