[eldo]

Hi,what for need a" work shift" setting and how does it work?can someone explain please?

[angelw]

Hi,what for need a" work shift" setting and how does it work?can someone explain please?

Although Work Shift Offsets G54 to G59 (standard set) are available on many lathes, there are many and varied ways around not having to employ them, and most of these other methods tend to be more flexible. The situations where these Work Shift offsets can be used is if detailed form is repeated along the workpiece. In this case the machining program can be registered as a Sub Program and called repeatedly after making a different Work Shift Offset active. However, as already stated, there are other and more flexible means available to achieve the same result.

One thing that's common between all turned workpieces, is that their X Zero is the centre line. What does vary however, is the Z zero where the end of the workpiece closest to the tool turret is the Zero point. Accordingly, the control needs to be told in some manner, where the workpiece is relative to the tools. In this case there needs to be a method of setting the Coordinate System of the machine without having to reset all tools. A Work Shift Offset can be used so to compensate for the length differences between different jobs that are run in the machine.

Any control that uses Geometry Offsets to set the tools, will use a Work Shift Offset to set the Z Zero of the workpiece. The actual setting of this is highly dependent on the model of the control and what setting method is available. But broadly speaking, it involves bringing a tool that has its Geometry Offset correctly set, into contact with Z Zero of the workpiece, or allowing for any material between where the tool is when touching the workpiece end and where Z Zero actually is, and either using a Measure Function that may be available to calculate the Work Shift Offset, or use the Machine Position display to manually calculate the offset to register.

Regards,

Bill

[eldo]

Thank you Bill

maybe you got some examples ?

[fordav11]

on a lathe the workshift is simply the distance from your setting tool at the zero return position to the Z0 point on your job and that's all.

the general idea in it's simplest form is if all tools are set and you change to a different job you just set a new Z workshift (your work Z0 point) and you are then set and ready to go.

examples? the workshift is just a number.
if you want a pic of the workshift screen it varies between different controls. which control do you want an example for?
I attached the workshift setting procedure for Fanuc 0T control.

You could also just read your manual. the workshift and the setting procedure for your machine will be explained in full in the manual.

[eldo]

It is very halpfull for me, this is what I needed.Thank you very much.