The principle of CNC core machining is revealed

The CNC walking machine is also called the headstock mobile CNC lathe. The difference between its working principle and the ordinary CNC lathe is: when machining slender shaft parts, the tool does not move, and the Z-axis direction is the spindle of the headstock body. The chuck clamps the material moving forward and backward. The material enters the spindle from the rear end of the spindle box through the automatic feeder, and then enters the movable guide sleeve at the front end of the spindle through the pre-installed spring chuck, and passes through the alloy fixed in the movable guide sleeve. The guide sleeve and the movable guide sleeve rotate synchronously, and at the same time play the role of supporting the material. In actual applications, according to the product processing requirements of different industries, a guide bushing and a guide bushing structure can be used. The difference between the structure with and without the guide sleeve of the CNC walking machine is:

　　The movable guide sleeve is composed of many parts, including the transmission shaft, the guide sleeve support frame, the outer wall of the guide sleeve, the slewing bearing, and the first and second synchronous belts. The main shaft rotates and drives the transmission through the first synchronous belt. The shaft and the transmission shaft drive the movable guide sleeve through the second synchronous belt, so that the movable guide sleeve and the main shaft reach the same speed, which can minimize the wear of raw materials and product accuracy. The relatively large advantage of this core walking machine structure is Slender shaft processing, high material hardness, high product precision parts, but long tailings, it is easy to cause waste of raw materials.

　　 Without guide bushing is actually lengthening the front end of the spindle, removing the movable guide bushing part, and making it pass directly through the tool holder plate. The advantage of this kind of core walking machine structure is that the tail material is relatively short and does not waste raw materials, but it is only suitable for Making flat materials with low aspect ratio, low material hardness, short raw materials, and unable to be fed by a feeder, will have a certain impact on the spindle and spindle bearings and service life of the core machine.

　　 When machining workpieces with a core machine, you will encounter the problem of too long tails. The tails are between 120mm-180mm. This is a walking machine with a guide bushing device. A walking machine without a guide bushing device is actually a cutting machine .It can reduce the problem of tailings. But if you encounter harder materials and slender shaft workpieces, there is no advantage. The product generally chooses the appropriate equipment according to the degree of difficulty. The walking machine can be turned, milled, and drilled. A hybrid power milling machine. It is suitable for machining shaft parts with complex parts, high precision requirements, and large quantities.