How to figure out the stroke of this cylinder?
How to figure out the stroke of this cylinder?
(OP)
I’m having and incredible hard time trying to figure out the correct stroke of the pneumatic cylinder that will lower the suction cups and bring it back up again.
Can someone please take a look at these drawings and let me know the steps for figuring out the cylinder stroke needed for this project?
http://www.telemetrika.com/CylinderStroke.html
I post if the SW2004 file for those of you who wants to download it.
Thanks
Can someone please take a look at these drawings and let me know the steps for figuring out the cylinder stroke needed for this project?
http://www.telemetrika.com/CylinderStroke.html
I post if the SW2004 file for those of you who wants to download it.
Thanks






RE: How to figure out the stroke of this cylinder?
I don't think you've presented your question fully.
"Art without engineering is dreaming; Engineering without art is calculating."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: How to figure out the stroke of this cylinder?
Apply a mate to constrain the "PIVOT BRACKET WITH PIN.SLDPRT<2>
Suppress the Limit Mates in the piston
Move the Vaccuum Grippers to their min and max extents and measure the pistons extended and retracted positions.
I'm curious, why isn't the cylinder modelled as a sub-assy?
... and if you don't know how far the cylinder needs to move, why have you applied Limit Mates?
RE: How to figure out the stroke of this cylinder?
form new assembly
I simply named it cylinder (notice asm. icon is different):
form new assembly
Make sure the new assembly is "Flexible" not "Rigid."
SW07 SP2.0
Flores
RE: How to figure out the stroke of this cylinder?
If I constrain and Apply a mate to constrain the "PIVOT BRACKET WITH PIN then the cups would not go all the way up and all the way down.
If I just get rid of this cylinder, how would know what size cylinder stroke you would need?
RE: How to figure out the stroke of this cylinder?
As far as figuring out the stroke, you will have to figure out where you want the cylinder first. Then just figure out the difference in distance between the mounting points when the mechanism is in the two positions. Do do this, add a sketch in the assembly and draw a line from the rod end mounting point to the cylinder mounting point. Dimension this line. Exit the sketch and move the mechanism to its two limits and check the value of the dimension. The cylinder stroke required is the difference between these two points.
RE: How to figure out the stroke of this cylinder?
Awesome response, this is just what I was looking for a good head start.
Thanks a lot I'll do as you said!!
"This is sophomore statics" I LOL!! I'm just a PLC programmer who simply loves to draw in SW!!!!
RE: How to figure out the stroke of this cylinder?
RE: How to figure out the stroke of this cylinder?
RE: How to figure out the stroke of this cylinder?
Thanks a lot
I love this forum!!!