linear motion

[cimaguy]

Good morning, everyone.
I kindly ask for advice.
I attach an image to explain myself (I hope you understand the intent).
I would have the need, by pressing the green pin (which is threaded to the square bar below) to move the colored brown pin vertically, without this ruoting around its axis.
What do you think you can do?
Thank you.

 

[DrBarde]

but it is necessary to do it construction?
sell translating screw jacks that do exactly this job

 

[cimaguy]

but it is necessary to do it construction?
sell translating screw jacks that do exactly this job

we say that, being a "custom" project I was oriented to a manual solution. I could also evaluate your solution. Would you please have some references where I can find them?

 

[DrBarde]

we say that, being a "custom" project I was oriented to a manual solution. I could also evaluate your solution. Would you please have some references where I can find them?

I think of leather clearanceBut looking for a lot of them. for example.
the substance is that it must create an orthogonal box.

 

[cimaguy]

I can't "get away from what the client asks me. I have to work on a manual solution with a pin and screw. I had thought of a mechanism with the concept of a screw press...but I "arenato"

 

[Marco F inox]

a solution could be this:
if in the bar there is a right threaded hole, on the brown pin make a left-handed fillet hole.
between the two elements insert a pin with two threads, one right and one left.
between the two threads of the pin, you can lock a nut or make a hole, for the maneuver.

 

[cimaguy]

a solution could be this:
if in the bar there is a right threaded hole, on the brown pin make a left-handed fillet hole.
between the two elements insert a pin with two threads, one right and one left.
between the two threads of the pin, you can lock a nut or make a hole, for the maneuver.

So...the green pin should have two threads... one right and one left... right?
and brown pin an inner thread?

 

[Marco F inox]

Yes, with a pin that has two opposite threads dx and sx, its rotation approaches or moves at the same time the two elements to which it is connected, without having them rotate.

 

[cimaguy]

Yes, with a pin that has two opposite threads dx and sx, its rotation approaches or moves at the same time the two elements to which it is connected, without having them rotate.

Last but not least, if I understand correctly, I have to drill the green pin... but do you mean to stick a plug?

 

[Marco F inox]

the green pin you have to delete it, then on the brown pin that remains, axle a left thread hole.
Then build the doubling, on one side with the right thread of the bar and on the other with the left thread of the brown pin.
Do you need a sketch?

 

[cimaguy]

the green pin you have to delete it, then on the brown pin that remains, axle a left thread hole.
Then build the doubling, on one side with the right thread of the bar and on the other with the left thread of the brown pin.

Okay. Now I try to draw it and place some image.I didn't understand the hole between the two threads...

 

[TETRASTORE]

another alternative can be that of a guide bushing with milling in which flows a solid pin to the stem of the eyelet. the material is according to the effort necessary to counteract the rotation.

 

[cimaguy]

the green pin you have to delete it, then on the brown pin that remains, axle a left thread hole.
Then build the doubling, on one side with the right thread of the bar and on the other with the left thread of the brown pin.
Do you need a sketch?

Gladly....gentilissimo. If I wanted to do a hand sketch, I would help

 

[cimaguy]

another alternative can be that of a guide bushing with milling in which flows a solid pin to the stem of the eyelet. the material is according to the effort necessary to counteract the rotation.

Thanks for the answer. then the guide bushing, burning, moves the pin.but if I fix it to the profile below how do I rotate it?

 

[cimaguy]

the green pin you have to delete it, then on the brown pin that remains, axle a left thread hole.
Then build the doubling, on one side with the right thread of the bar and on the other with the left thread of the brown pin.
Do you need a sketch?

You mean that?

 

[Marco F inox]

exact, with the appropriate measures and with central element to the screw, nut or hole, to rotate it.

 

[Marco F inox]

You mean that?

You mean that?

exact, with the appropriate measures and with central element to the screw, nut or hole, to rotate it.

 

[TETRASTORE]

then the guide bushing, burning, moves the pin.but if I fix it to the profile below how do I rotate it?
It is likely that I did not understand the application well but in the solution that I described the bushing should be fixed on the profile, the button of the eyelet must be wire threaded internally and the screw that gives the movement is fixed but free to rotate; Obviously it will have to be operated from under the profile, rotating without moving it will move the eyelet axially.
In this way the control screw can be rotated in both ways and the eyelet can stand or lower without turning.
question, looking at your design at the beginning: How do you rotate the screw?

 

[cimaguy]

exact, with the appropriate measures and with central element to the screw, nut or hole, to rotate it.

Thank you very much. Can the pin have a smooth central part? I would not like to see during rotation.

 

[cimaguy]

...with a mouth between the two threads of the pin