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Supporting and Locating Principles 111: Click Each Image To Learn More

Locators come in various sizes, materials, shapes, and types depending on the workpiece and manufacturing forces. Smaller locators are easier to clean but wear more easily, while larger locators resist wear but can trap more chips. Locator material also depends on the application, with harder materials resisting forces but potentially distorting softer workpieces. Locators are available in different shapes such as flat buttons, diamond pins, and blocks to provide flexibility in fixture design. Locators can also be fixed, adjustable, assembled, or integral depending on the needed level of accuracy and ease of workpiece loading.

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60 views2 pages

Supporting and Locating Principles 111: Click Each Image To Learn More

Locators come in various sizes, materials, shapes, and types depending on the workpiece and manufacturing forces. Smaller locators are easier to clean but wear more easily, while larger locators resist wear but can trap more chips. Locator material also depends on the application, with harder materials resisting forces but potentially distorting softer workpieces. Locators are available in different shapes such as flat buttons, diamond pins, and blocks to provide flexibility in fixture design. Locators can also be fixed, adjustable, assembled, or integral depending on the needed level of accuracy and ease of workpiece loading.

Uploaded by

MF
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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6/11/2020 Print

Supporting and Locating Principles 111


Locator Selection

Describe general considerations for selecting a locator.

Click each image to learn


more

Locators range in size, material, shape, and type. Locator selection depends on workpiece material and shape, locator position, and
the operation's manufacturing forces.

Large and Small Locators

Smaller locators wear more easily and allow workpiece distortion when used with greater manufacturing forces. However, they are
easier to clean, prevent chips from catching in the fixture, and better locate rough surfaces. Larger locators resist wear and prevent
workpiece distortion but are more difficult to clean and trap more chips. Large locators work best with accurate, machined surfaces.

Stainless Steel Locators

Locators made of hard materials, such as tool steel, better resist manufacturing forces but can contribute to workpiece distortion.
Hard locators are more likely to distort softer workpiece materials, but locators must be made of a material that resists wear. For
certain applications requiring corrosion resistance, stainless steel or coated steel locators are available.

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6/11/2020 Print
Flat Button and Diamond Pin

Locators come in a variety of shapes, such as flat buttons, diamond pins, and blocks. Flat buttons and blocks are better for outside
surfaces of larger, longer workpieces. Diamond pins are most useful as radial locators. Manufacturers also make buttons with
spherical heads and pins with spherical, conical, round, and bullet heads, among others, to provide fixture design flexibility.

Fixed Locator and Adjustable Locator

Locators are categorized as either fixed or adjustable and assembled or integral. Fixed locators are a set shape and size and
facilitate easy workpiece loading and unloading. The height or position of an adjustable locator can be changed to provide more
accurate location. Assembled locators can be removed and re-attached to a fixture body, increasing flexibility. Integral locators
are built into a fixture body, increasing accuracy of the locator and the finished part.

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