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An indexing head, also known as a dividing head or spiral head, [1] is a specialized tool that allows a workpiece to be circularly indexed; that is, easily and precisely rotated to preset angles or circular divisions.
Indexing in reference to motion is moving (or being moved) into a new position or location quickly and easily but also precisely. When indexing a machine part, its new location is known to within a few hundredths of a millimeter (thousandths of an inch), or often even to within a few thousandths of a millimeter (ten-thousandths of an inch), despite the fact that no elaborate measuring or ...
Some rotary tables allow the use of index plates for indexing operations, and some can also be fitted with dividing plates that enable regular work positioning at divisions for which indexing plates are not available. A rotary fixture used in this fashion is more appropriately called a dividing head (indexing head).
Other applications of the Geneva drive include the pen change mechanism in plotters, automated sampling devices, banknote counting machines, and many forms of indexable equipment used in manufacturing (such as the tool changers in CNC machines; the turrets of turret lathes, screw machines, and turret drills; some kinds of indexing heads and ...
An important product came in 1874 with Gleason's invention of the first bevel gear planer, a planer with integral indexing head designed to specialize in planing bevel gears. Planers and indexing heads had been combined before, but never in the winning form factor that Gleason created specifically for gears.
Elon Musk's Department of Government Efficiency (DOGE) began publishing data on federal agencies yesterday after questions and complaints arose about the office's transparency.
Inserts are removable cutting tips, which means they are not brazed or welded to the tool body. They are usually indexable, meaning that they can be exchanged, and often also rotated or flipped, without disturbing the overall geometry of the tool (effective diameter, tool length offset, etc.).
Senate Democrats face significant challenges in regaining control of the chamber, as Republican gains in the 2024 elections have given the party a 53-47 majority, making it difficult for Democrats ...