The fixture used to fix the object in the mechanical manufacturing process to occupy the correct position, the manipulator clamp to accept the construction or inspection, also known as the fixture. Broadly speaking, any device used to quickly, conveniently, and safely mount a workpiece during any process can be referred to as a robotic accessory fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common, often referred to as fixtures. When machining a workpiece on a machine tool, in order to achieve the technical requirements of the dimensions of the workpiece, the geometric shape and the mutual positional accuracy with other surfaces, the workpiece must be mounted (positioned) and clamped (clamped) before machining. . The manipulator assembly fixture usually consists of a positioning element (determining the correct position of the workpiece in the fixture), clamping device, tool setting element (determining the relative position of the tool to the workpiece or guiding the tool direction), indexing device (making the workpiece in one installation) It can complete the processing of several stations, including two types of rotary indexing devices and linear moving indexing devices, connecting components and clips (clamp base).
The types of robotic fixtures can be divided into:
1 universal universal fixture. Such as machine vise, chuck, suction cup, indexing head and rotary table, etc., have great versatility, can better adapt to the processing process and the transformation of processing objects, its structure has been shaped, size, specifications have been series Most of the robotic accessories have become a standard accessory for machine tools.
2 special fixtures. It is specially designed and manufactured for the clamping needs of a certain product part in a certain process. The service object is specific and highly targeted, and is generally designed by the product manufacturer. Commonly used are lathe fixtures, milling fixtures, drills (machine tool holders for guiding tools to drill holes or reaming on workpieces), die cutters (machine tool holders for guiding the boring bar on the workpiece) and pallets (for Mobile fixture on the automatic line of the combined machine tool).
3 adjustable clamps. A special fixture that can be replaced or adjusted for components.
4 combination fixtures. A fixture consisting of standardized components of different shapes, sizes and uses. The robotic fittings are suitable for single-piece, small batch production and temporary tasks for new product trials and frequent product changes.
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