First of all, the concept is different. Test fixture is a kind of fixture, which is used to test and inspect the function, power calibration, life and performance of products. Because it is mainly used to test the indexes of products on the production line, it is called test fixture. Fixture refers to the general name of various tools used in the manufacturing process, and fixture is its commonly used abbreviation.
Secondly, with different types, test fixtures were widely used before the industrial age, mainly including functional test fixtures, ICT test fixtures, aging test fixtures, tin furnace fixtures and so on. This kind of fixture is also widely used. In any process, the device used to install the workpiece quickly, conveniently and safely can be called fixture. Commonly used welding fixture, inspection fixture, assembly fixture, machine tool fixture, etc.
The third purpose is different. Test fixtures are widely used, including mechanical fixtures, woodworking fixtures, welding fixtures, jewelry fixtures and other fields. Its main purpose is to repeat a certain part repeatedly and accurately, improve productivity and make the produced equipment more accurate. Fixture is mainly for the surface energy of the workpiece to meet the technical requirements of detection, geometric shape and mutual position accuracy of other surfaces specified in the drawings, and the processing money must be used to assemble and clamp the workpiece.
Although the checking fixture and fixture are not the same product with different concepts and uses, the purpose is the same, that is, to reduce production costs, improve work efficiency and improve product accuracy for enterprises.
Source Hongwo Fixture www.szhongwo.com