14:43 Sep 17, 2019 |
Polish to English translations [PRO] Tech/Engineering - Engineering (general) / academic course description | |||||||
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3 | single- indexing (dividing) plate |
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1 +1 | single plate |
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single plate Explanation: indexing head, also known as a dividing head or spiral head |
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single- indexing (dividing) plate Explanation: 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 heads are usually used on the tables of milling machines, but may be used on many other machine tools including drill presses, grinders, and boring machines. Common jobs for a dividing head include machining the flutes of a milling cutter, cutting the teeth of a gear, milling curved slots, or drilling a bolt hole circle around the circumference of a part Interchangeable indexing plates Direct indexing plate: Most dividing heads have an indexing plate permanently attached to the spindle. This plate is located at the end of the spindle, very close to where the work would be mounted. It is fixed to the spindle and rotates with it. This plate is usually equipped with a series of holes that enables rapid indexing to common angles, such as 30, 45, or 90 degrees. A pin in the base of the dividing head can be extended into the direct indexing plate to lock the head quickly into one of these angles.[3] The advantage of the direct indexing plate is that it is fast and simple and no calculations are required to use it. The disadvantage is that it can only be used for a limited number of angles. https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/In... https://en.wikipedia.org/wiki/Indexing_head |
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