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Machine Tool

Cycle Time Reduction Principles For CNC Machining Equipment

What is the meaning of cycle time? Cycle period is defined to be time that happens from the time a task or series of tasks is actually initiated to the time a task is completed. Example, the cycle time is the time a shipping order is printed to the time it is loaded on the truck and the system is up-to-date. An alternate definition would be is the time it takes to load, operate, and unload on workpiece.
Cycle time of a machine can be simply measured by time how long it takes from pushing the button to start the actual cycle for the first work surface to the pressing the next switch for the next workpiece.
Production amounts in an industry dictate that the more workpieces you run, the more essential it is to achieve the goal associated with lowering the cycle time.
Everything and anything that happens in a {Computer Numerical Control} (CNC) machining equipment can be divided into four categories:
1.) On-line, effective tasks:
These are the actual machining operations that occur during a CNC cycle. These are the milling, drilling, tapping, reaming, and any other machining operation that in some way furthers the completion of the workpiece. To reduce the cycle time in these areas, there are two ways in which this can be achieved. One would be via careful process planning.
The process engineer must select a suitable machine tool, cutting resources, fixturing, and machining order in a way that this matches the number of workpieces to be produced that will be based on the production amount. The cycle time is a reflection of the processes getting used to machine workpieces.
If in the many times that your company’s processes have already been developed and implemented before you begin your cycle time reduction program, then your second alternative would be to optimize cutting operations for this would involve properly choosing cutting tool materials, rss feeds, and speeds to machine workpieces as efficiently as possible using the current process.
2.) On-line, non-productive tasks:
These are tasks that occur during the machining cycle that do not really further the completion of the work surface. The first thing Computer Numerical Control people often target for improvement is wasted program execution time. Fundamental essentials things like rapid movements, tool changes, M-code execution and spindle acceleration/deceleration. Reducing program execution time in el born area is usually easy.
It often requires nothing more than carefully monitoring the development run for a few workpieces to find those times when the program can be modified to eliminate noticeable pauses during the cycle. Although keep in mind that the worker for these machines must not overlook other processes for they might be so concerned with minimizing program execution that they overlook additional operations, resulting in severe waste products of cycle time.
3.) Off-line, non-productive tasks:
These are the tasks performed in the machining cycle that do absolutely nothing to further the completion of the workpiece. Since these types of tasks are carried out while the machine is producing workpieces, they do not actually add to the cycle time. It is possible to free the operator of the machines of performing off-line productive tasks should they have little, or nothing to do throughout lengthy machine cycles.
Four.) Off-line, productive tasks:
These are the tasks done away by the CNC machine, while the machine is producing workpieces, which may further the completion of the work surface. This is extremely helpful during lengthy CNC cycles, tasks in this category can reduce the time it requires to complete the production run significantly, which would effectively reduce period time. Learn more at http://cnccontroller.org.