What is a jig? Design principle and function of fixture

Tooling, that is, process equipment: refers to the manufacturing process used in the tools of the general term. Include cutting tools/fixtures/molds/measuring tools/checking tools/auxiliary tools/locksmith tools/station tools, etc. Tooling for its general abbreviation.

Tooling is divided into special tooling/general tooling/standard tooling (similar to standard parts).

Fixture: As the name implies, a device used to hold a work piece (or guide a cutting tool).

Fixture: Manufacturing appliances. Fixtures, sometimes synonymous with tooling and sometimes used by electronics companies, are commonly used in Taiwan, Korea, and Japan.

Fixture is used to quickly tighten the workpiece during processing, so that the machine tool, cutting tool, the workpiece to maintain the correct relative position of the process device. That is to say, Workholding fixture is an indispensable part of machining, fixture is also known as fixture. In a broad sense, in the process of any process, used to quickly, convenient, safe installation of the device of the workpiece, can be called the fixture. Such as welding fixture, inspection fixture, assembly fixture, machine fixture and so on. The fixture, often referred to as the fixture.

When the workpiece is processed on the machine tool, in order to make the surface of the workpiece meet the technical requirements of the size, geometric shape and mutual position accuracy with other surfaces specified in the drawings, the workpiece must be installed (positioning) and clamped (clamping) before processing. The application of machine tool fixture is conducive to ensuring the processing accuracy of the workpiece and stabilizing the quality of the product. Is conducive to improving labor productivity and reducing costs; It is beneficial to improve the working conditions of workers and ensure safe production. It is helpful to expand the scope of machine tool technology and realize "one machine multi-purpose".

Fixtures are usually composed of positioning components (to determine the correct position of the workpiece in the fixture), clamping devices, tool guiding components (to determine the relative position of the tool and the workpiece or guide the direction of the tool), indexing devices (to enable the workpiece to complete several stations in one installation processing, There are two types of rotary indexing device and linear mobile indexing device), connecting components and clamp specific (fixture base).

Fixture is also very high in the use of electronic manufacturers. In order to improve production efficiency and product quality, fixture is commonly used for functional testing or auxiliary assembly (to assemble a fixed shape and height, etc.) in the middle and back sections of production. The actual use in the electronic production factory is very wide, because of non-standard custom, so only unexpected and not impossible to do. The fixture belongs to the fixture, the fixture contains the fixture and belongs to the subordinate relationship.