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Custom Full Wrap Jaws

Custom clamping jaws, developed for a vertical machining environment. A Northfield 650 air chuck has been adapted to work with custom jaws.

FullWrap_Jaws_Clamping_Air_Chuck

The ‘pie’ shaped top jaws provide a full wrap clamping around the work piece. This project also includes a custom spring loaded locating pin assembly. Designed to orient the customer’s workpiece allowing fast and accurate change over.

Can we do the same for you? Reach out and an engineer will be in touch to collaborate on your next project.

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Northfield Pressure-LokTM Chucking System

Our recent product introduction, the Northfield Pressure-Lok TM Chucking System is an air chucking system that works without the air tubes and hoses. Video Below ⬇.

Northfield Pressure Lok Chuck
Northfield Pressure Lok Chuck

The Pressure-LokTM air chuck once charged with air pressure can hold pressure for up-to 3 weeks! Ideally implemented in machining operations that do not have access to a continuous supply of air.

The quick connect fitting is compatible with all Northfield chucks. The air pressure can be altered between 5 & 80 P.S.I. to adjust the grip force as required, improving the flexibility offered by spring clamping alone.

Northfield Pressure Lok Chuck
Our model 450 (3-Jaw) Air chuck with .0001 T.I.R.

Email sales@northfield.com to learn more.

Video
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Pitch-line Gear Chucks

Introducing the series of pneumatic actuated pitch-line gear chucks.

 

Helical Gear Chuck
Helical Gear Chuck

Spur Gear Chuck
Spur Gear Chuck

How can we help you?

These two chucks are 7-inch diaphragm chucks. For multiple gear sizes, chucks can be provided with interchangeable cages and top jaws.

How do we do it?

We attach a custom designed axial locator cage to a standard chuck. This contains a series of floating gage pins in a flexible mounting. Then, we load the gear over the pins into the chuck. The jaws clamp over the pins to center and grip the gear providing a “best fit” centerline of the pitch diameter.

 

Pitch line gear chucks can be provided in sizes from 3-inch to 12-inch diameter, sliding jaw or diaphragm models and can be applied to spur or helical gear applications.

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Custom Diaphragm Chuck for milling precision gears

Every week exciting new projects are heading out the door, such as this Custom Diaphragm Chuck for milling precision gears.

Brief:

The customers work piece is a small precision gear that requires milling on one face, timed to existing geometry.

Challenge:

The outer diameter of this gear shouldn’t be touched, gripping is only possible on the root diameter.

Solution:

Northfield DPH-400 (.00050” T.I.R.) 4” diameter diaphragm chuck was provided, with sub jaws, changeable inserts and stops for different sized work pieces.

  •  Wire cut inserts clear the major diameter and clamp on the root diameter.
  • Changeable stop pads have timing pins, to orient the work pieces prior to clamping.
  • The base stop has a ground indicating band for initial setup.
  • The chuck’s ‘pull-back clamping’ action ensures the part sits flat.

 

Don’t forget you can also follow our most recent projects on LinkedIn.

 

Do you have a unique working holding requirement? Then get in touch now. Our sales team are always available to answer your questions. https://www.northfield.com/contact/

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Medical Precision and Customization

Medical Engineering

Always looking for a chance to innovate, the Northfield team were excited to bring their years of work holding expertise to the medical industry, creating parts for joint replacement.

Brief:

Deliver the appropriate tolerances requested, including: concentricity, accuracy, and repeatability from part to part. Achieving
this was the priority whilst allowing easy operation and quick tooling change overs.

The Northfield team created two separate solutions:

Custom_Collet_Chuck

  • Secondly, a ‘Power Block’ for holding multiple knee-joints simultaneously with a very specific grip force. Also, allowing clearance for the milling tools and part sensing ports. This allows the machine to acknowledge that parts are correctly loaded and ready to be manufactured.

custom_air_chucks

Challenge:

1. Holding the half sphere shoulder parts from the inside with only a minimal surface area, to allow the finishing operation on the outside.

2. The knee joints required custom air chucks to clamp various part sizes at the same time for finish milling.

3. Ensure the correct jaw force was applied to the delicate parts throughout the entire process.

Solution:

1. Northfield offers a large range of standard precision collet chucks, that grip a part internally. This job was unique as we developed a special contoured collet with a specific shape. Finish milled to enable holding several different part sizes. We also added a locating surface that uniquely has a small surface area, although robust and accurate enough to allow a long tooling lifetime.

2. Four different sized parts need to be held at the same time, therefore multiple Northfield chucks are in use simultaneously. Our customer wanted to finish the second operation of all the parts at once, achieved by creating a base plate with easy air porting.

3. Finally, we also delivered a force analyser that works together with our custom tooling, creating a turn-key solution with specific grip force.

 

Do you have a special working holding requirement? Our sales team are always available to answer your questions. https://www.northfield.com/contact/

 

Northfield is a custom work holding solutions company based in Island Park, New York.