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- Jig_grinder abstract "A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required.The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe). It is almost exclusively used by tool and die makers in the creation of jigs or mating holes and pegs on dies. There are usually many peripheral elements to a large jig grinder, including separate hydraulic motors, air compressors, and various cooling systems for both the hydraulic circuit and supplying coolant to the work and machine itself.The machine operates by a high speed air spindle rotating a grinding bit. The air spindles are removable and interchangeable to achieve varying surface speeds. Some spindles are fixed speed (60000 rpm), others are adjustable (30000-50000 rpm), and still others are very high speed (175000 rpm). The machines have a standard X-Y table with the notable exception of knee travel. All axes are indexed to .0001\" via a vernier scale on the handwheels, with higher accuracy available with the use of measuring bars. The machine head has two vertical travels, one rough head adjustment and the other a precise spindle adjustment. The spindle to which the detachable air spindle mounts also rotates at a variable speed and can typically outfeed .100\" while running, again with an accuracy of .0001\" on the handwheel or greater, for very precise hole, peg and surface grinding. A well-kept jig grinder will reliably position work to a higher degree of accuracy than is possible with handwheels alone. These features are all critical in positioning a hole and peg system a precise distance from a reference surface or edge.The most important factor on a jig grinder is the dual-spindle configuration. The main spindle is roughly positioned with between 1\" or 2\" of travel for setup, and then the .100\" of outfeed is used during machine operation to outfeed into the work. A spacer bar may be used between the grinder and main spindle, allowing large (9\" radius or larger) work to be completed. The main spindle has a wide range of speeds to ensure proper grinder feed rates are maintained.".
- Jig_grinder thumbnail Moore_Jig_Grinder.jpg?width=300.
- Jig_grinder wikiPageExternalLink books?id=7LehRTx2krQC.
- Jig_grinder wikiPageID "6249673".
- Jig_grinder wikiPageLength "2981".
- Jig_grinder wikiPageOutDegree "13".
- Jig_grinder wikiPageRevisionID "635723500".
- Jig_grinder wikiPageWikiLink Angle_grinder.
- Jig_grinder wikiPageWikiLink Bench_grinder.
- Jig_grinder wikiPageWikiLink Category:Grinding_machines.
- Jig_grinder wikiPageWikiLink Centerless_grinding.
- Jig_grinder wikiPageWikiLink Cylindrical_grinder.
- Jig_grinder wikiPageWikiLink File:Moore_Jig_Grinder.jpg.
- Jig_grinder wikiPageWikiLink Flick_grinder.
- Jig_grinder wikiPageWikiLink Jig_borer.
- Jig_grinder wikiPageWikiLink Lathe.
- Jig_grinder wikiPageWikiLink Machine_tool.
- Jig_grinder wikiPageWikiLink Milling_(machining).
- Jig_grinder wikiPageWikiLink Spindle_(tool).
- Jig_grinder wikiPageWikiLink Tool_and_cutter_grinder.
- Jig_grinder wikiPageWikiLinkText "Jig grinder".
- Jig_grinder wikiPageWikiLinkText "jig grinder".
- Jig_grinder wikiPageUsesTemplate Template:Cite_book.
- Jig_grinder wikiPageUsesTemplate Template:Metalworking-stub.
- Jig_grinder wikiPageUsesTemplate Template:Metalworking_navbox.
- Jig_grinder subject Category:Grinding_machines.
- Jig_grinder hypernym Tool.
- Jig_grinder type Software.
- Jig_grinder type Tool.
- Jig_grinder comment "A jig grinder is a machine tool used for grinding complex shapes and holes where the highest degrees of accuracy and finish are required.The jig grinder is very similar to a jig borer, in that the table positioning and spindles are very accurate (far more so than a manual milling machine or lathe). It is almost exclusively used by tool and die makers in the creation of jigs or mating holes and pegs on dies.".
- Jig_grinder label "Jig grinder".
- Jig_grinder sameAs Q17135804.
- Jig_grinder sameAs m.0fywjk.
- Jig_grinder sameAs Q17135804.
- Jig_grinder wasDerivedFrom Jig_grinder?oldid=635723500.
- Jig_grinder depiction Moore_Jig_Grinder.jpg.
- Jig_grinder isPrimaryTopicOf Jig_grinder.