BM45 - BM65: STEP 7
With this last tutorial we will explaine how to create a complete program.
Hi! I’m Stefano from Italy. Thanks for watching our Pedrazzoli video tutorials. If you have seen all the previous videos, you are now able to setup the machine, the tooling and to make a bend. With this last tutorial we will explaine how to create a complete program.
We have performed our test bend. Now I recall a program I have created previously. You select from the HD the name of the program and you load it.
This program contains bends to the left, to the right and a push bending (fig. 1). Again, you can see the 3D of the part (this is the bed frame, for example) (fig. 2) and, as you can see, the push bending stacks, so, when you put 3 here, the colour will change to red (fig. 3). When you change the bending direction, it will turn to light blue. Basically, to program the first and the second stacks, nothing change: lenght, bend angle, rotation, speed, mandrel extraction, clamp open and clamp close. Another nice feature is the “copy cell” (fig. 4), for example here I have missed the anticipated mandrel extraction.
So, you click on the first line in the value, then this button (fig. 5), “copy cell?”, “Yes” and it copies the value in all below cells. The same here: I have missed the opening position of the roll, so you just click here (if everything is the same, of course) and you copy all the cells. The only difference is regarding the push bending. You have two ways to program: you can insert the radius (fig. 6) that you want to obtain and the machine automatically calculates the angle; or you program an angle of 50° (fig. 7) and the machine calculates automatically the radius. Another important fields are these two: this is the pre-opening (fig. 8) and the pre-closing (fig. 9) of the arm. What does it mean?
The arm will first move to 10.2° (fig. 10) in a lenght of 50 mm (fig. 11): if I open the bend arm at 15° all togheter and then I start pushing, I can have overload problems, so I write on the control that on this 50 mm (fig. 12) the bend arm go to 10.2 and the same have to been done when you go back to zero, so on the last 35 mm (fig. 13) the bend arm will go back to zero. The result is also an homogeneous bend without any necks.
You can see the 3D, you click (fig. 14) and run the anti-simulation (my simulation is ok in this case). You may have seen that I have 140, 170, 170, 140, 170: I split these two lines (fig. 15) because, after this bend, I would go directly on the second stack and then move 170 mm forward and there eas a collision. So I split this line, first move out 85 mm (fig. 16), then change stack, move to the second level and then move at 85 mm forward and make the bend. This is just to avoid a collision while changing the stacks. My simulation was ok, so I go in manual (fig. 17).
I download the program (fig. 18). I check: my tube lenght is 2000 (fig. 19), the developed lenght (fig. 20), the collet, everything is ok, collect stop at 35 is ok), turn the key to automatic (fig. 21) and make your bend.