The function of the azimuth detection equipment is to detect the displacement and speed of the moving parts of the automatic drilling machine, and send feedback signals to form a closed-loop control system, and convert the digital signals back to the CNC equipment and pulse instruction signals for comparison, in order to control the correct work of the driving components. The precision and resolution of numerical control system depend on the accuracy of azimuth detection equipment. For different types of CNC machine tools, the precision requirements of the bit detection components, the detection system and the maximum moving speed of the measured parts are different.
At present, the highest level of detection components and systems is: when the highest moving speed of the tested component is 240m/min, the resolution of the detected displacement (the minimum amount of displacement that can be detected) can reach 1m, such as 0.1m when 24m/min. The highest resolution is 0.01pm.
The CNC drilling machine has the following requirements for the position detection equipment:
1. Reliable operation and strong anti-interference
Because there are motor, solenoid valve and other electromagnetic induction components on the machine tool and the existence of lubricating oil and cutting fluid in the cutting process, therefore, the azimuth detection device is required to have strong anti-interference ability in addition to electromagnetic induction, but also the device is not afraid of oil and water pollution. In addition, because of the occurrence of heat in the cutting process, it is also required that the bearing detection device has strong adaptability to the ambient temperature.
2. Satisfactory accuracy and speed requirements
Under the condition of satisfying the maximum displacement velocity of CNC drilling machine, the bearing detection device is required to achieve certain detection accuracy and small cumulative error. With the development of CNC drilling machine, its precision and speed are higher and higher, so the azimuth detection device must be satisfied with the high precision and high speed requirements of CNC drilling machine.
3. Easy to install and maintain
When installing the bearing detection device, there must be certain device accuracy requirements, and the form and bearing of the device must also be convenient for empty maintenance.
4. Low cost, long life
Because of the impact of the use of the environment, the bearing detection device also requires better dust, oil mist, chip and other characteristics.

Features of CNC drilling machine:
1. Fast speed, high precision, tap out of the teeth can be detected by the dental gauge. Can be used for high-speed continuous cycle operation, the special motor can be durable, can complete the initiative, pitch type active tapping machine multi-axis drill can operate multiple equipment together, can significantly save labor costs!
2. The principle of operation: positive rotation, positive rotation, rotary multi-axis drill continuous cycle and positive rotation, rotary, the suspension of the one-way cycle has a specific multi-axis drill button switch to operate, but also the equipment foot switch, selective operation, continuous, one-way, cycle can be active. The operator's hands are completely free from the machine to complete the active work, beginners can also operate smoothly.
3. High precision tapping stroke adjustment is simple, active rotary equipment can freely adjust the tapping stroke, multi-drilling, active drilling machine, shallow holes and holes of low processing workpiece can be easily adjusted, double safety equipment can avoid damage to the screw tapping, spindle rotation and up and down, advance and retreat knife special double safety clutch, multi-axis drilling movement, spindle can actively stop, reverse cutting tool will damage the hole drilling tool.
4. Pitch A, B gear cooperation A, B shaft and spindle according to the pitch to promote complete cooperation, vertical stability, precision, precision is particularly high, when the screw tapping teeth marching and retreating perforated drill will be able to run in stride. Depending on the quality of the product, the perforated drill can be threaded in different sizes and sizes. It can also be threaded perfectly for thin sheets and soft materials such as light composite metals and synthetic resins. The square type adjustable spindle has the same structure as the round type.