What is the principle of choosing turning amount in CNC machining? How to use the shock absorber in CNC machining?

The choice of knife back to the CNC machining center, fixture, tool and workpiece stiffness and the power of the machine to determine. In the process system allows the case, as far as possible to choose a larger back cutting.

(1) Rough car, first consider to choose a as large as possible back cutting ap, then choose a large feed f, and finally determine a suitable cutting progress V. Increasing the back bite ap can reduce the number of cutting, and increasing the feed f is conducive to chip breaking. Therefore, it is beneficial to choose the cutting amount of rough turning according to the above principles to improve production efficiency, reduce tool consumption and reduce processing cost.

(2) fine turning, machining accuracy and surface roughness requirements are high, machining allowance is not small and uniform, so choose small (but not too small) back to eat ap and feed F, and choose high cutting performance tool material and reasonable geometric parameters, in order to improve the cutting speed V as far as possible.

(3) When arranging coarse and fine turning dosage, attention should be paid to the allowable cutting dosage range given by the machine tool manual. For the spindle using AC frequency conversion speed control CNC lathe, due to the spindle at low speed torque reduction, especially should pay attention to the cutting dosage selection at this time. Table 3-1 shows the recommended amount of CNC turning for reference during programming.

In short, the specific value of cutting parameters should be determined by simulation method according to machine tool performance, related manual and combined with practical experience. At the same time, the spindle speed, back knife and feed speed can be adapted to each other, to form the best cutting amount.

CNC machining center compared with ordinary machine tools, machining accuracy (accuracy) is higher, with a very stable processing quality. Therefore, the quality requirements for the operation and control personnel are relatively high, especially in the damping device, the following methods of use should be paid attention to:

After the machine is horizontal, tighten the screw and fix the horizontal state. CNC processing of a variety of small batch production, production efficiency is high, can reduce the production preparation, machine tool adjustment and process inspection time, and because of the use of the best cutting amount to reduce the cutting time.

Put the required pad under the foundation hole of the machine tool, insert the screw into the hole, hold the foundation with the nut, and place the nut in contact with the machine tool. Because of the creep of rubber, the level of the machine should be adjusted after two weeks when the pad is first used. CNC machining greatly reduces the number of tooling, machining complex shape parts do not need complex tooling. If you want to change the shape and size of parts, only need to modify parts processing procedures, suitable for new product development and modification. Adjust the level of the machine, the nut rotates counterclockwise, and the machine rises.

Shenzhen Manners Technology Co.,Ltd is the supplier of some of the world’s famous international companies like Blum Novotest, Komet, Geneva Lab, BTL, etc... We specialize in telescoping parts, needle manufacturing, multi-axis CNC machining, Die casting mold, plastic injection mold, stamping mold, Swiss-type turning, laser cut tubing, tube processing, laser welding and automated assemblies for the medical, endoscopic, arthroscopic, orthopedic, firearms, defense, automotive, and specialty industrial markets.

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