Brief introduction of the most popular automatic l

Introduction to center walking and knife walking automatic lathes

precision automatic lathes can be divided into center walking and knife walking

1. Center walking processing process: the processing material is clamped by a simple clamp, and the material moves forward, while the tool does not move, and the parts are processed through the linear motion or swing motion of the tool

2. Tool walking processing process: it is to clamp the workpiece with a simple clamp and process the workpiece by moving the turning tool back and forth, left and right

3. The tool walking cam automatic lathe is equipped with five knives, and the tool holders are No. 1, No. 2, No. 3, No. 4, and No. 5 in sequence. Each group of tool holders can be equipped with a knife. No. 1 and No. 5 are turning outer diameters, and No. 2, 3, and 4 are mainly grooving, chamfering, cutting and other processes. Two tail shafts, two drill bits, one tap and one die are cut at the same time, and tapping, milling, die, embossing and other processing can be carried out at the same time. There is no need for manual operation. Complex parts can be processed synchronously, such as turning excircle, spherical surface, conical surface, circular arc surface, step, cutting groove, embossing, drilling, tapping, die, cutting and other processes. The whole process can be completed by one-time processing

4. High dimensional control accuracy: the spindle accuracy of the machine tool can reach 0.003mm, the fine adjustment of the slider is controlled by the micrometer, the dimensional control accuracy can reach 0.005mm, and the spindle speed is within rpm. The minimum cutting feed can be controlled to 0.005, and the minimum roughness of parts (copper parts) can reach Ra0 08。

5. Automatic feeding: the feeding mechanism automatically feeds the material to the main shaft, automatically stops and alarms after the material is finished, and there is no need to manually check the material in the processing process. At present, the most mature steel manual test interface in China is mainly divided into four regional structure residential systems. The 20000 ton lithium carbonate production line of Shandong Ruifu lithium industry was put into trial production in the second half of 2017, and a fully automated production and manufacturing process was achieved. One operator can operate multiple machines at the same time

6. High production efficiency: This machine tool controls the processing process through the cam, and each rotation of the cam completes a processing process. Cam speed 1 RPM, it can be adjusted according to different processing parts, and about 30 parts can be processed per minute. Because five knives can be cut at the same time, the processing efficiency is very high, which is unmatched by general CNC computer lathes and instrument lathes

7. Cam is used to control feeding automation and automatic walking of cutting tools. Cam type automatic lathe uses two kinds of cams: one is cylindrical shape. After machining its end face into various shapes, make the cam (bowl/plate) for the knife starting automatic lathe rotate, and connect the cam with the rocker arm through the transmission connecting rod to change the rotary motion of the cam into the linear motion of the tool holder. This cam is called bowl cam, which is mainly used to cut the axial cutting direction of machined parts. The other is in the form of a circular plate, whose periphery is processed into the desired shape, and then the rotary motion of the cam is changed into the linear motion of the tool through the transmission rod connected with the tool rest due to the small experimental force; This cam is mainly used for radial cutting direction of machined parts. By combining the left-right and back-to-back movements of these two cams, the tool can travel in an inclined or curved direction. (end)