Locating elements: These elements locate the workpiece in a proper position in relation to the cutting tool.Ĭlamping elements: These elements firmly secure the workpiece in the located position. The main elements of jigs and fixturesīody: It is a plate, box or frame type structure in which the components to be machined are located. Read also: 7 Types Of Lathe Machine Chucks. The tools are set at the required positions on the work by using gauges or by manual adjustment. In construction, the fixture comprises a different standard or specially designed work holding the device, which is clamped on the machine able to hold the work in the position. What is a Fixture?Ī fixture is a device which holds and locates a workpiece during an inspection or for a manufacturing operation.

In construction, a jig comprises a plate, a structure, or box made of metal or in some cases of non-metal having provisions for handling the components in identical positions one after the other, and then guiding the tool incorrect positions on the work in accordance with the drawing, specification, or operation layout. The holding of the work and guiding of the tool is such that they are located in true positions relative to each other. What is Jig?Ī jig may be defined as a device which holds and located a workpiece and guides and controls one or more cutting tools.

If such objects are to be produced in identical shapes and sizes on a mass scale, suitable devices have to be used for holding and locating purposes so that the repetition work can be done. However, every type of object cannot be machined on a capstan or turret lathe and may involve the use of drilling, milling, planning and grinding machines, etc. Jigs and fixtures are the devices which help in increasing the rate of identical parts and reducing the human efforts required for producing these parts, It has already been emphasized earlier that a center lathe is a suitable machine tool for producing individual parts of different shapes and sizes, but for producing similar articles in great number its use will not be economical.Īgainst this, a capstan and turret lathe can be easily adapted for repetition work on account of the multi-cooling arrangement and use of transverse stop this increases the rate of production.

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