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peck drilling simulation problem

Hey friends ,

Before NX 10 , we can't simulate peck drilling with hole making /drilling/drill,deep, breakchip .

It was taken pecking dimension from top offset dimension and we can see peck drilling with verify. 

But now NX 10.0.2 (mp2 and mp3)

it does not work . when we try simulate this operation ,we can see same with standart drilling . 

 

Any idea about this?  Thanks .

9 REPLIES

Re: peck drilling simulation problem

Siemens Genius Siemens Genius
Siemens Genius

With nx9 we did start to simulate pecks for the new hole drilling operation. To be able to simulate one needs to have a good guess about the meaning of steps. There a couple of common ways to define increments.

 

The expanded (Single Moves) cycle types do contain all supported increment types (Constant, Multiple, Exact, Degression, % Degression).

 

For all Depth increment types -except User Defined- we do have a meaning where the result is shown in verify. User defined is available for canned cycles only. I assume you have set depth increments to User Defined or selected a cycle type without depth increments?

 

The canned cycle types can be configured to provide the set of depth increment types. This depends on the availability of additional cycle parameters defined within the user specific cdl file. Out of the box the canned cycle types provide a subset (no Degression and %Degression)

 

Note that depth increments are calculated for depth range not including the safety distance (top offset) minus rapto offset. This is the default on most Sinumerk controllers. To include the safety distance within the calculation you will need to add the cycle_step_range_option within your cycle definition and have it set.

 

Thanks,

 

Toon

 

 

 

 

Re: peck drilling simulation problem

Thanks, for answer but we can see this simulation in NX 9 with same operation .

Also it's still working with drill deep at NX 10.

These are peck drilling operations (drill deep and drill deep break chip )

Diffrences was only tool go down and go up how many milimeters .

For exapmle in drill deep you can make step 2 mm . And you will see in verify , tool going two mm and than come back top offsett  plane . This is also G84 cylcle in post processor .

And in NX 9 with drill deep berak chip you can see  this simulation verify. 

Different issue is only in drill deep tool come back top offset plane ,

in drill deep break chip tool come back top offset dimension .

But you cant see this in NX 10 . you will see the tool only going down and come back clearence plane.

 

Re: peck drilling simulation problem

Siemens Genius Siemens Genius
Siemens Genius

To assist you further you will need to supply a bit more information. Please supply part data (if no export restriction else submit a PR to TAC with part data in order to regulate this) or provide screenshots of your cycle parameter dialog. 

 

Thanks,

 

Toon

Re: peck drilling simulation problem

Okey Toon ,

I put data . 

one part is NX9 you will see the name , other part is NX 10 .

Same operations ,watch with verify you will see the problem . 

Re: peck drilling simulation problem

Siemens Genius Siemens Genius
Siemens Genius

I am not sure if I did understand you well enough but will give it a try.

 

 

Verify works for these operations as expected, both in NX9 as well as in NX10.

 

The only difference between nx9 and nx10 is that for the breakchip cycle -on nx9- we did (mis-) use the "approach clearance" or "top offset" as default for the "secondary clearance" or  "step clearance" for break chip cycles during emulation (as visible in verify). 

 

(ISO 4343:2000  CLEAR,d,e where d stands for "approach clearance" and e stands for the "secondary clearance")

 

As there is no one-to-one relation between these two clearances, we have discontinued this behavior. Besides we support an additional cycle parameter where one can define this value explictly.

 

Add the following PARAM to your cycle definition (*.cdl) to check this out.

 

PARAM cycle_step_clearance
{
TYPE d
DEFVAL "0.5"
TOGGLE OFF
UI_LABEL "Step Clearance"
}

 

To extend the ootb breakchip cycle with a couple more "system" parameters to add degression type of depth increment specification, step retract, times before performing a periodic full retract, see example below

 

SYS_CYCLE Drill_Deep_Breakchip
{
UI_LABEL "Drill,Breakchip"
PARAM sys_ext_group_start
{
TYPE g
DEFVAL "START_OPEN"
UI_LABEL "System Extensions"
}


PARAM cycle_step_degression_value
{
TYPE d
DEFVAL "0.0"
UI_LABEL "Value of Degression"
}
PARAM cycle_step_degression_percentage
{
TYPE d
DEFVAL "0.0"
UI_LABEL "Percent of Degression"
}

PARAM cycle_step_degression_minimum
{
TYPE d
DEFVAL "0.0"
UI_LABEL "Minimum Distance"
}

 


PARAM cycle_step_clearance
{
TYPE d
DEFVAL "0.5"
TOGGLE OFF
UI_LABEL "Step Clearance"
}
# Retract outof hole after number of pecks, times 1 makes this similar to a deep cycle
PARAM cycle_step_times
{
TYPE i
DEFVAL "3"
TOGGLE OFF
UI_LABEL "Step Times"
}

PARAM cycle_step_retract
{
TYPE d
DEFVAL "1.0"
TOGGLE OFF
UI_LABEL "Step Retract"
}
PARAM sys_ext_group_end
{
TYPE g
DEFVAL "END"
}
}

 

 

 

Re: peck drilling simulation problem

Watch NX 9 break chip operation verify and than NX 10 .

You cant see peck  in NX 10.There is no same motion in verify. 

In machine it's working also it gives true cylce in post processor . But in verify you cant see the peck drilling . 

Re: peck drilling simulation problem

thanks for the answer. 

Re: peck drilling simulation problem

Siemens Genius Siemens Genius
Siemens Genius

BTW in verify do click "Step" instead of "Play". On Play it seems like a single move down where on "Step" you will notice that the move in fact consists of multiple depth increments

Re: peck drilling simulation problem

ı put movies NX 9 and NX 10 same part and same operation.

Learn online





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