Building an Electric Gripper - 2ms Speed, 1cm Displacement

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An electric gripper is needed with a speed of 20 milliseconds and a displacement of at least 1cm. The initial idea of using a solenoid was challenged due to the weight and lack of suitable options. Suggestions included using a strong spring for fast closure and a solenoid or screw mechanism for reopening. High precision electric stepper motors were considered but deemed too expensive for multiple units. Cost-effective alternatives for components are sought to keep the project within budget.
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Hi all, i need to create an electric gripper, the speed of the greep need to be about 2ms. So i tought to use a solenoid that can be real fast, but i found only hydraulic solenoid(and i can't find force that they can generate in datasheets) or big and heavy solenoids(too much for my project). The greep don't need to be real strong but i really need to contain the price. The displacement of the gripper need to be at least 1cm per part(so the solenoid need to do a minimum 1cm movement). Any ideas? about a better gripper or where to find parts(the name of parts)?

I will really appreciate any help!

I tought something like this: (sorry for bad drawings)

20accb6.jpg


or

rif4nm.jpg
 
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Welcome to the PF.

Moving something 1cm in 2 milliseconds is pretty fast! One option would be to use a strong spring to do the fast closure, and use a solenoid or screw mechanism to open it back up again to "cock it" for the next closure.
 
Thank you!

Yes, sorry, i wrong to type. It's 20ms.
 
Have you tried looking into high precision electric stepper motors?
 
I tought about it, but I'll need Stepper motor + Electronics that will cost a lot, consider that I need to make 4 or 5 of this arms and each arm have 2 gripper, the price will be soo high.
 
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