Weld someone's torso to a rotating (but anchored) brick?

Hey, I'm trying to build a robotic claw that can grab and move players around, and I want to use Welds to hold the player in place in the claw by creating a Weld between the Player and a certain part on the claw.

The claw moves entirely by CFrame. Here is a prototype script I made just to test out the welding. It creates the weld, and the character gets frozen in place. How do I make it so that they are just welded to the part and will move with it?

Thanks.

currentlyGrabbing = false
local weldPart = script.Parent.clawSegment.holderSpot

while true do
	wait(.5)
	if script.Parent.grabbing.Value == true then

		print("grab is true")
		--find local humanoid
		local mods = workspace:getChildren()
		for _,v in pairs (mods) do
			if v:IsA("Model") and v:findFirstChild("Humanoid") and v:findFirstChild("Torso") and v:findFirstChild("Humanoid").Health ~= 0 and (not currentlyGrabbing) and ((v.Torso.Position - weldPart.Position).magnitude < 5) then
				print("got one")				
				currentlyGrabbing = true
				local torso = v.Torso
				local newWeld = Instance.new("Weld")
				
				newWeld.Part1 = weldPart
				newWeld.Part0 = torso
				newWeld.C0 = CFrame.new(0,2,0)
				newWeld.Parent = torso
			end
		end
	end
end