CNC Drilling and tapping machine is in a closed or semi-closed state during deep hole processing, so it has the following characteristics:
1. The cutting status of the tool cannot be directly inquired. At present, we can only judge whether the cutting process is normal by listening to the sound, watching the chips, querying the machine load and pressure gauge, contact oscillation and other appearance phenomena.
2. Cutting heat is not easy to spread. In general, 80% of the cutting heat is taken away by the chips during the cutting process, while deep hole drilling only takes 40%. The tool accounts for a large proportion of the cutting heat, spreads slowly, and is prone to overheating. The cutting temperature of the cutting edge can reach 600 degrees. It is necessary Use a forced and useful cooling method.
3. Due to the depth of the hole. The chip passes through a long route, which is prone to blockage, which constitutes a bit chipping. Therefore, the length and shape of the chips should be controlled, and enhanced chip removal should be carried out.
4. The rigidity of the drilling process system is poor. Constrained by the aperture standard, the long diameter of the borehole is relatively large, the drill rod is thin and long, and the rigidity is poor. It is easy to produce oscillation and the borehole is easy to deviate. Therefore, support and guidance are extremely important.
The high-speed drilling and tapping center gauge is similar to the CNC machining center, with a general stroke of 600MM*400*300, with a super large column and stability, and can move at a high speed of 60m/min without deformation. Ultra-large span base, thick six-point support structure, high-speed displacement, no sensation, no deformation; the three-axis of the high-speed drilling and tapping center meter can move at a high speed of 60m/min, which is fast and saves processing time. After the high-speed drilling and tapping center gauge is powered on, it must first return to the origin of each axis, and then enter other operating modes to ensure the correctness of the coordinates of each axis.
The protective door must be closed before the parts are processed by the high-speed drilling and tapping center gauge, and the protection door is not allowed to be opened during the normal operation of the program; when the high-speed drilling and tapping center gauge is energized, the operator is prohibited from opening and touching the parts with the lightning symbol on the machine tool. To prevent being injured by electric shock. Processing procedures must pass severe inspections before they can be operated. Operators must not leave their posts during the work of the high-speed drilling and tapping center. The machine tool should be parked as soon as any abnormality is found to ensure the safety of operators and equipment. Drilling machine manufacturers stated that they strictly abide by the job responsibility system, and that the high-speed drilling and attacking center meter should be used by dedicated personnel; operators are not allowed to disassemble and move the insurance and safety protection devices on the machine tool privately; the accessories, measuring tools, and cutting tools of the high-speed drilling and attack center meter It should be kept properly and kept intact and good.
