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Usually in the discussion to based on the parameters of the CNC programming problem, most upscale CAM system programmer would retreat. Most of the programmer needs to clean up the output, the output is not modified will run in the CNC - if used improperly, some parameter programming application could really damage work.
The application of parameter programming has five types. I think, if use a CAM system to generate the CNC program, some of them do not apply.
1. Artifacts family - with a parameter program to process a number of artifacts, operators change variables on the machine tool, to characterize the workpieces
Most CAM systems also have their own family of workpiece programming ability, but many CNC user does not want its operator control programming. So, based on the CNC parameter programming artifacts family for CAM system user, usually is not very good application.
It seems belong to the parameters of the classic type of programming applications, but it is also the most problematic for CAM system user types. Workshop workers like he can master the operation, if just change a few variables, can produce different artifacts, they certainly welcome. In fact, many of the artifacts family application is really too complicated, its parameter programming is very difficult to grasp, especially when the work itself is complex, CAM system to produce program request.
2. The user to create a closed cycle - from a G code instruction to execute a series of movement
Most CAM systems can use based on CNC closed cycle (e.g., on the machining center hole processing cycle - G81, G84, etc.). That is to say, the CAM system actual output of the program will include closed cycle instruction, they are a part of the post-processor. These built-in, based on the closed cycle of the CNC program and making it easy to modify.
If your company often do some type of processing, rather than by based on closed loop controller, so you can create your own closed loop, processor, and after the modification of CAM system output appropriate instructions to complete. The best example is in thread machining center. Many CNC haven't thread milling closed cycle, while using parameter programming, you can easily create a closed loop. Once created, it can provide any other all advantages of closed cycle, and can be performed by the CAM system (if the post-processor modified). On the machine tool, the program will shorten, the operator can better control the screw thread processing.
3. The utility program - CNC machine tool performance to some extent, improved and improve
This type of application for the use of all CNC, including those with CAM system of enterprise, is helpful. In general, when your machine problems, you should consider, with parameter utility program to improve the performance of your machine.
In the use of many kinds of utility applications, CAM system is not involved - need to modify the machine operators operating mode. Such as measuring the zero program (original) tasks, if qualified, so don't need to do this task. Zero program can be calculated, at the same time, zero program assigned instructions can be included in the program. If qualified set impossible, so the location of the zero program must be set in the process of measurement. One way is to use driven by process parameters measuring rod probe. If no measuring machine tool rod probe, then set up personnel should use measuring tool, such as edge detector and scale indicator, measure the position of the zero point program by hand.
4. Drive auxiliary device, an application can drive the probe, can also track, report and post-processing system
The high-grade auxiliary devices require parameter programming features. If a particular machining center has measuring rod probe, you may also have parameter programming ability. Because the probe can be programmed, you can think it is similar to the so-called users create a closed cycle. One or more of the detection loop are often included in the CNC program, while the CAM system must be able to output the necessary instructions.
5. Complex movement - the new (or options) movement form can be created
Controller manufacturers to provide all kinds of required for movement of the insertion process, the most common are: linear, circular, spiral into the program. If you encounter some exercise machine cannot take place, the parameter program can solve. Note that many of the CAM system can produce almost any type of exercise, but the corresponding CNC program would be lengthy, the CAM system must produce a long series of tiny, straight or circular motion instructions.
Needs in a spiral thread milling insert movement. So far, many new machine has not provide screw insertion procedure, and the old machine tool more without this function. Parameter program can produce spiral milling thread need movement. This type of application is generally much shorter than those produced by the CAM system program.
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