Germany vandurit workpiece fixture vandurit model vandurit price

vandurit workpiece fixture is an electromagnetic fixture that secures the workpiece being machined by the suction force generated by the chuck body when the electromagnetic coil is energized. The electromagnetic chuck consists of several parts, including the iron core, coil, faceplate, and bracket. The electromagnet, composed of the coil and iron core, is the main part of the electromagnetic chuck. Electromagnetic chucks vary due to differences in design methods or materials used, and they are continuously developing and improving. Initially, electromagnetic chucks were used on grinding machines to replace clamping plates and bolts for securing workpieces to be ground. Such electromagnetic chucks are relatively simple and can only secure flat workpieces. This is the traditional electromagnetic chuck, which has significant limitations in its application. With industrial development, the demand for electromagnetic tools from enterprises has grown, and the requirements have become higher, prompting a series of improvements to electromagnetic chucks to meet production needs.

vandurit workpiece fixture classification

Types of fixtures can be classified according to their usage characteristics as follows: (1) Universal general-purpose fixtures. Examples include machine vises, chucks, suction cups, indexing heads, and rotary tables. They offer high versatility and can adapt well to changes in machining processes and workpieces. Their structures are standardized, with dimensions and specifications serialized; most have become standard accessories for machine tools. (2) Specialized fixtures. These are specifically designed and manufactured for the clamping needs of certain product parts in specific processes. They serve a single purpose with strong specificity and are generally designed by the product manufacturer. Common types include lathe fixtures, milling machine fixtures, drill jigs (machine tools used to guide drills or reamers for drilling or reaming holes in workpieces), boring jigs (machine tools used to guide boring bars for boring holes in workpieces), and pallet fixtures (movable fixtures used on automated lines of modular machine tools). (3) Adjustable fixtures. Specialized fixtures whose components can be replaced or adjusted. (4) Modular fixtures. Fixtures composed of standardized components with different shapes, specifications, and purposes. They are suitable for prototype production of new products, single-piece and small-batch production with frequent product changes, and temporary tasks. In addition to vises, chucks, indexing heads, and rotary tables, another common type is the tool holder. Generally speaking, when the term "tool fixture" is mentioned, it mostly refers to the tool holder.

vandurit workpiece fixture features

1 Standardization: Standardization and generalization of machine tool fixtures are two interrelated aspects. China already has national standards for fixture parts and components: GB/T2148~T2259－91, as well as standards for various general-purpose fixtures and modular fixtures. Standardization of machine tool fixtures facilitates commercial production of fixtures, helps shorten production preparation cycles, and reduces total production costs. 2 Precision: As the precision of mechanical products increases, the precision requirements for fixtures inevitably increase. There are many structural types of precision fixtures, such as multi-tooth discs for precision indexing, with an indexing accuracy of ±0.1"; and high-precision three-jaw self-centering chucks for precision turning, with a centering accuracy of 5μm. 3 Efficiency: High-efficiency fixtures are mainly used to reduce the basic and auxiliary time of workpiece machining, thereby improving labor productivity and reducing workers' labor intensity. Common high-efficiency fixtures include automated fixtures, high-speed fixtures, and fixtures with clamping force devices. For example, using an electric vise on a milling machine to clamp workpieces can improve efficiency by about 5 times; using a high-speed three-jaw self-centering chuck on a lathe ensures that the jaws can still firmly clamp the workpiece at a test speed of 9000r/min, significantly increasing cutting speed. In addition to configuring corresponding high-efficiency and automated fixtures on production lines and automatic lines, various automatic workpiece clamping fixtures and automatic fixture changing devices have appeared on CNC machines, especially machining centers, fully leveraging the efficiency of CNC machines. 4 Flexibility: The flexibility of machine tool fixtures is similar to that of machine tools, referring to the ability of machine tool fixtures to adapt to variable process factors through adjustment and combination. The main variable process factors include process characteristics, production batch size, and workpiece shape and dimensions. New types of fixtures with flexibility characteristics mainly include modular fixtures, general-purpose adjustable fixtures, group fixtures, modular fixtures, and CNC fixtures. To meet the needs of modern mechanical industry for multi-variety and small-to-medium batch production, expanding the flexibility of fixtures, changing the non-disassemblable structure of special fixtures to a disassemblable structure, and developing adjustable fixture structures will be the main direction of fixture development.

vandurit workpiece fixture usage

With the continuous development of China's industry, electromagnetic chucks are increasingly widely used in industrial production. The most important aspect of an electromagnetic chuck is its parameters. Among the performance parameters of an electromagnetic chuck, the lifting capacity and its working class are the most critical. The so-called lifting capacity of an electromagnetic chuck refers to the maximum weight of objects allowed to be lifted under specified working conditions, also known as the rated lifting capacity. For cranes equipped with electromagnetic chucks, the lifting capacity should also include the weight of the electromagnetic chuck itself. Rectangular electromagnetic chucks have lifting screw holes on both sides. During installation, T-shaped screws can be screwed in for lifting. They are fixed to the workbench using T-shaped blocks and screws. Connect the DC power supply and ground wire from the machine tool, then precision grind the upper surface of the chuck once to ensure the parallelism between the upper surface and the bottom surface. When adsorbing workpieces, sufficient positioning and holding force can be obtained by bridging two adjacent magnetic poles, allowing grinding operations to proceed. Magnetization and demagnetization of the workpiece can be controlled via the machine tool buttons. Before use, the surface of the electromagnetic chuck should be wiped clean to avoid scratches. Severe impacts are prohibited to prevent affecting precision. After use, it should be cleaned and coated with anti-rust oil to prevent corrosion. When using an electromagnetic chuck independently, a ground wire must be connected to prevent electric shock due to leakage.

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