Clamping Force

UGMENTALCASE

Hi all,
I'm hoping for some pointers if possible please. More the way you perhaps approach this.
I have a clamp block. The hole (highlighted in the image) touches the surface of a component. The component can take a max of 5Kn force in this area.
Ultimately I want to work out the torque to apply to the 4 bolts to hold this thing down. But a start would be to figure out the force on the bolt holes to apply that 5Kn max to the component.

I'm aware of people I've worked with in the past being able to 'hold' down a part by X amount and see what a sideways force does when held at that torque. I'm not sure if this is the same sort of thing?
Hope this makes sense.

JohnM

I've attached something similar, take a look.
Couple questions
- is the 5kN target a radial clamping force for torque resistance or something else?
- what are the clamp and clamped part materials?
Interesting problem, definitely a good use of Mecway.

UGMENTALCASE

Hi John, thanks for the reply. The clamp block is steel s275.
The 5Kn comes from the spec sheet for the component it's clamping. It's a little vague the spec sheet, it says 'static clamping force >5Kn'. So to play it safe I wanted to use that as a max and go from there.
The clamped component I'm not 100% sure on the material but it'll be a hardened steel I'd assume (it's a cnc spindle)
Thanks for the example file I'll take a look

disla

Hello,

Just curiosity, what is the purpose of this device?. It does not appear to be used to attach anything other than itself to a tube.

Normally one of the halves is prepared to be fixed but in this case it does not appear to have any rail or base for attachment like in the example.

UGMENTALCASE

There is another half to this, which is very similar to the top half. So the spindle we are looking at will fit in the hole and the top is secured to the bottom piece, which isn't shown, but like I say, very similar in size and shape

disla

More like this.

UGMENTALCASE

That type of thing yes