There are many fixtures that arise because of the need for business because there are many types of fixtures that are customized, and some to increase productivity, repeat specific actions, or make work more precise. Because the design of the fixture is basically based on logic, similar fixtures may be generated separately for use at different times and locations.

The test fixture belongs to a category below the fixture, and is a fixture for testing and testing the function, power calibration, life, performance, etc. of the product. Because it is mainly used in the production line for the testing of various indicators of the product, it is called test fixture.

Fixture category:

Fixtures have been widely used before the industrial era, including mechanical fixtures, woodworking fixtures, welding fixtures, jewelry fixtures, and other fields. Certain types of fixtures are also referred to as "molds" or "accessories" whose primary purpose is to repeat a portion of the reproduction for repeatability and accuracy. An obvious example is when the key is copied, the original key is usually fixed to the fixture, so that the machine can copy the new key by guiding the appearance of the original key.