Workholding Fixtures in Milling

Workholding fixtures are devices used to secure workpieces in place during machining operations. In milling machines, a common workholding fixture is a vise. There are many types of vises, including machine vises, two-jaw vises, multi-jaw vises, pneumatic vises, hydraulic vises, and universal vises, each suited for different applications.  

What is a Workholding Fixture?
An adjustable workholding fixture is a device that holds a workpiece in a fixed position, allowing for precise and repeatable machining operations. These fixtures can be adjusted to hold workpieces at specific angles or positions.

Workpiece Clamping Methods
The most common method of securing workpieces in milling machines is using a vise. Other methods include using bolts and clamps, dividers, rotary tables, and simple dividing fixtures. Depending on the specific machining operation, magnetic chucks and special-purpose clamping fixtures can also be used.

Magnetic Chucks
Magnetic chucks use powerful electromagnets to hold ferrous metal workpieces in place. This provides a quick and easy way to secure workpieces and ensures accurate positioning.  

Applications of Workholding Fixtures
Workholding fixtures are used in a wide range of industries, including automotive, aerospace, and general manufacturing. They are essential for tasks such as drilling, milling, and grinding.