How does a CNC lathe work?

1. Before processing and producing parts, CNC lathes need to design and analyze the process plan according to the pattern of the parts to be machined, and then program. The preparation process should be performed first. If the machining process of the workpiece is long and particularly complex, try not to program on the lathe. Programming machines or manual programming can be used to avoid taking up machine time. For shorter programs, it should also be written on the program list.

2. For the input of the machining program, the interface of direct communication between the computer and the CNC lathe can be selected to input the machining program of the parts into the CNC system. Then it is necessary to pre-adjust the tool and fixture, and install and adjust the tool and fixture according to the tool and fixture scheme determined in the part processing process design before machining the part. Then the machining program is decoded and calculated by numerical control device. After processing, the pulse signal is sent to the servo system of the lathe, and then the related parts of the lathe are driven by the transmission mechanism to complete the cutting of the parts. The others are sent to the programmable controller, which in turn controls the other auxiliary parts of the lathe, thus completing the actions of clamping and loosening the workpiece, opening and closing the coolant, and automatically changing the tool. Pinch points for reference.

3, the process of starting the CNC lathe is to start the lathe first, and then start the system, because some designs are interlocked, the lathe can not display the corresponding information on the CRT in the case of no power. Rotation reference point, for the use of incremental control system of CNC lathes, this step must be carried out in order to establish the movement standard of each coordinate of the lathe.

4. If you need to modify the input program, you need to edit it. At this point, put the mode selection switch in the EDIT position and use the EDIT key to add, remove, and change. If the CNC lathe of the lathe is locked, the program needs to be checked and if an error is found, it needs to be re-edited.

5, and then on the workpiece, find knife to knife operation, choose manual incremental movement, continuous movement or use manual casting lathe. Align the tool to the center point of the program with the super starting point, and align the tool reference.

6. Start coordinate feed, continuous processing of parts, usually using the program in memory, lower error rate than using the program on paper tape. The feed speed during processing can be adjusted by the feed speed. During processing, you can press the FEEDHOLD key to pause the feed movement, observe the processing situation or measure manually. When finished, press the CYCLESTART button again to resume the operation. In order to ensure that there are no errors in the processing procedure, it is necessary to carefully review it before processing. When machining a workpiece with a flat curve, the outline of the workpiece can be drawn on paper with a pencil instead of a tool, so it can be intuitively seen that if the system has a tool trajectory simulation function, it can be used to check whether the program is correct.

7. CRT can display a variety of pictures, display the position and program of the workbench or tool and the status information of the CNC lathe, which is convenient for the operator to monitor the machining process. When the program is finished, if you need to save the program, you can save it in the CNC's memory. If the program is long, it can be saved by exporting the program in memory to an external device.

8. For part detection and disassembly, the workpiece size should be detected when the workpiece is still held by the chuck. If the size of the workpiece is not acceptable, it is necessary to perform appropriate tool compensation operations, rework, and disassemble the workpiece when the size is acceptable. After all process operations are completed, shut down the machine. At the time of shutdown, the CNC lathe is also turned off first, and then the system is relevant.