Tools and Holding Devices
Text-based version
Tools and Holding Devicesg Tools |
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Word |
Meaning |
Context |
More Information |
"A" - clamp |
"A" shaped clamping device. |
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These clamps are versatile and easy to use. They use a cam powered action. They prevent twisting of workpieces. |
angle plate |
Angle plate is used in layout work and in setting up the work piece for drilling or milling at a 90 degree to the table. |
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"C" - clamp |
"C" shaped clamping device. |
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Using "C" - clamps workpieces can be fastened to angle plates for layout operations. |
center punch |
Center punch is used to enlarge prick punch holes. |
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Center punches are used to mark the workpiece prior to machining operations such as drilling and should not be used in place of a layout punch. |
dividers |
Dividers transfer distances directly from the rule to the work and are used to scribe equally spaced divisions. |
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Dividers are usually set to rules. |
drill vise |
Drill vise is a holding device used for clamping most workpieces while drilling. |
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The vises provide the quickest and most efficient set up method for parallel work. |
gooseneck clamp |
Gooseneck is a hold down device used to fasten a work piece to a table. |
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The gooseneck clamp allows the top of the clamping bolt to be positioned below the surface to be machined. |
hermaphrodite caliper |
Hermaphrodite caliper locates and scribes lines in a work piece parallel to its side. |
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Available in many sizes. |
Kant-Twist clamp |
Kant-Twist clamp is a heavy duty clamping devices. |
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Kant-Twist clamps weight approximately half as much as comparable C-clamps. |
laying out |
Laying out or lay-out is the operation of transferring reference marks from a blueprint to the work piece. |
The information measured and transferred must be accurate. An error in layout will result in an error in the finished part. |
Accurate workmanship depends upon the ability to use the proper instruments and gages for measuring precisely. |
parallel clamp |
A parallel clamp is a low reach heavy duty clamping device, also known as machinist or toolmakers' clamp. |
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Clamping devices are used for safe handling and ease of operation. Stronger and smaller than a C-clamp. |
prick punch |
Prick punch is used lightly mark the location of holes. |
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The prick punch is the only punch that should be used in layout. It is used to preserve the location of a layout mark while doing minimum damage to the work piece. |
scriber |
Scriber is a sharp, pointed tool used to draw straight sharp lines. |
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The pocket scriber can be reversed in the handle for safety. Available with carbide or hardened steel point. |
step blocks |
Step blocks help to support the work piece. |
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Step blocks are extremely useful clamping aids. |
T-bolt |
Head has a T-shape and is used to fasten work to the table. |
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T-bolts are used on milling machines tables and faceplates. |
trammel |
Trammel measures between two points and scribes circles or arcs that are too large for dividers. |
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Trammel points can be attached to a bar and set to circle dimensions or they may be clamped directly by rule graduations. |
transfer punch |
Transfer punch used to transfer holes of any diameter from 1/16th to 2 inches. |
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Transfer punch can be used with any shape of hole-round rectangular, square, elongated, or tear-shaped materials up to 2 inches or 50 mm thick. |
"U" - clamp |
"U" shaped device for holding down a work piece. |
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One advantage of the "U" - clamp is that it can be removed without taking the nut off the T-bolt. |
V-blocks |
V-blocks hold round stock for layout work. |
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Source: http://precision-machining.wikispaces.com/file/view/Tools+and+Holding+Devices+Vocab.doc
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