The fixture is a process device used to quickly fasten the workpiece during processing and maintain the correct relative position of the machine tool, tool, and workpiece. In other words, Workholding fixtures are indispensable components for mechanical processing. Driven by the development of machine tool technology in the direction of high speed, efficiency, precision, composite, intelligence, and environmental protection, fixture technology is moving towards high precision, efficiency, modularity, combination, and universality. , economic direction development.
The fixture is also called a fixture. Broadly speaking, in any process during the process, the device used to install the workpiece quickly, conveniently and safely can be called a fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common and are often referred to as fixtures.
When processing a workpiece on a machine tool, in order to ensure that the surface of the workpiece can meet the technical requirements such as size, geometry, and mutual position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned) before processing. , Clamp (clamp).
The application of machine tool fixtures is conducive to ensuring the processing accuracy of workpieces and stabilizing product quality; it is conducive to improving labor productivity and reducing costs; it is conducive to improving workers' working conditions and ensuring safe production; it is conducive to expanding the scope of machine tool technology, Realize "one machine for multiple purposes".
The fixture usually consists of a positioning component (to determine the correct position of the workpiece in the fixture), a clamping device, a tool setting guide component (to determine the relative position of the tool and the workpiece or guide the direction of the tool), and an indexing device ( It enables the workpiece to be processed at several stations in one installation. It consists of two types: rotary indexing device and linear moving indexing device), connecting elements and clamp body (clamp base).
The use of fixtures is also very high in electronic manufacturers. In order to improve production efficiency and product quality during production, tooling fixtures are commonly used in the middle and latter stages of production for functional testing or auxiliary assembly (which can assemble Fixed shape and height, etc.). In fact, it has a very wide range of uses in electronics manufacturing plants. Because it is non-standard customization, there is nothing you can't think of but nothing you can't do.