Information about Jig (tool)
A jig is any of a large class of tools in woodworking, metalworking, and some other crafts that help to control the location or motion (or both) of a tool or workpiece. Some types of jigs are also called templates or guides.
Jigs or templates have been known long before the industrial age. There are many types of jigs, and each one is custom-tailored to do a specific job. Many jigs are created because there is a necessity to do so by the tradesmen. Some are purely to increase productivity, to do repetitious activities and to add precision to a job. Because jig design is fundamentally based on logic, it is highly possible that the same jig created in one geographical region was created independently in another region or was created previously in another era and all the creators were unaware of each other's jig yet created it in an almost identical manner.
Tools of this class include machining jigs, woodworking jigs (e.g. tapering jig), welders' jigs, jewelers' jigs, and many others.
A jigsaw is called so because it is used to cut arbitrary curves used in jigs.
Drill jigs started falling into disuse with the invention of the jig borer.
Since the widespread penetration of the manufacturing industry by CNC machine tools, in which the servocontrols are capable of moving the tool to the correct location automatically, the need for drill jigs (and for the jobs of the drill press operators who used them) is a fraction of what it previously was.
A tradesman is a skilled manual worker in a particular trade or craft.
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Jigs or templates have been known long before the industrial age. There are many types of jigs, and each one is custom-tailored to do a specific job. Many jigs are created because there is a necessity to do so by the tradesmen. Some are purely to increase productivity, to do repetitious activities and to add precision to a job. Because jig design is fundamentally based on logic, it is highly possible that the same jig created in one geographical region was created independently in another region or was created previously in another era and all the creators were unaware of each other's jig yet created it in an almost identical manner.
Tools of this class include machining jigs, woodworking jigs (e.g. tapering jig), welders' jigs, jewelers' jigs, and many others.
A jigsaw is called so because it is used to cut arbitrary curves used in jigs.
Drill jig
A drill jig is type of jig that expedites repetitive hole center location on multiple interchangeable parts by acting as a template to guide the twist drill into the precise location of each intended hole center. In metalworking practice, typically a hardened bushing lines each hole on the jig to keep the twist drill from cutting the jig.Drill jigs started falling into disuse with the invention of the jig borer.
Since the widespread penetration of the manufacturing industry by CNC machine tools, in which the servocontrols are capable of moving the tool to the correct location automatically, the need for drill jigs (and for the jobs of the drill press operators who used them) is a fraction of what it previously was.
See also
Woodworking is the process of building, making or carving something using wood.
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History
Along with stone, mud, and animal parts, wood was certainly one of the first materials worked by primitive human beings...... Click the link for more information.
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- This article is about the skilled manual worker meaning of the term; for other uses see Tradesperson (disambiguation)
A tradesman is a skilled manual worker in a particular trade or craft.
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Logic (from Classical Greek λόγος logos; meaning word, thought, idea, argument, account, reason, or principle) is the study of the principles and criteria of valid inference and demonstration.
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A tapering jig is a woodworking jig used to cut a progressively deeper cut along a workpiece usually parallel to the grain.
Tapering jigs are often used to create table legs, with the taper usually cut into the two sides of the leg facing the inside of the table.
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Tapering jigs are often used to create table legs, with the taper usually cut into the two sides of the leg facing the inside of the table.
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A jig used in making jewelry is a plate or open frame for holding work and helping to shape jewelry components made out of wire or small sheets of metal. A jig in the jewelry making application is used to help establish a pattern for use in shaping the wire or sheets of metal.
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jigsaw is a tool used for cutting arbitrary curves, such as stenciled designs or other custom shapes, into a piece of wood or similar material. It is usually used in a more artistic fashion than other saws, which only cut in straight lines and exist mainly to cut pieces of wood to
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Long series drills are extended length twist drills. They are not the best tool for drilling deep holes, as they require frequent withdrawal to clear the flutes of swarf and prevent drill breakages. Gun drills are the preferred drills for deep hole drilling.
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The jig borer is a type of machine tool invented at the end of World War I to make possible the quick-yet-very-precise location of hole centers. It was invented independently in the United States and Switzerland.
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CNC stands for computer numerical control, and refers specifically to a computer "controller" that reads G-code instructions and drives a machine tool, a powered mechanical device typically used to fabricate components by the selective removal of material.
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A machine tool is a powered mechanical device, typically used to fabricate metal components of machines by machining, which is the selective removal of metal. The term machine tool
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The jig borer is a type of machine tool invented at the end of World War I to make possible the quick-yet-very-precise location of hole centers. It was invented independently in the United States and Switzerland.
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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
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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
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Staircase jig incorporates both a right angle and an acute angle in its design. The jig is easily transported due to its small size and light weight. Precise measurements are required to layout the diagonal locations.
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sharpening jig is often used when sharpening woodworking tools. Many of the tools used in woodworking have steel blades which are sharpened to a fine edge. A cutting edge is created on the blade at the point at which two surfaces of the blade meet.
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fixture is a tool of the manufacturing industry used in mass production. Fixtures are used to hold objects in place and clamp them to machines or operating surfaces, so that the object can be worked on.
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