lissmac fixtures Germany lissmac models lissmac prices

lissmac fixtures are devices used on machine tools to clamp workpieces and guide cutting tools. They refer to fixtures specifically designed for a particular operation on a specific workpiece. Their characteristics include compact structure, rapid, convenient, and labor-saving operation, ensuring high machining accuracy and production efficiency. However, the design and manufacturing cycle is long, and manufacturing costs are high. When the product changes, the fixture becomes obsolete and is scrapped because it can no longer be used. It is only suitable for production with fixed products and large batch sizes. It contacts the positioning datum of the workpiece to determine the correct position of the workpiece in the fixture, thereby ensuring the correct relative position of the workpiece with respect to the cutting tool and the machining motion of the machine tool during processing. It typically consists of positioning elements, clamping devices, tool-setting and guiding elements or devices, etc.

lissmac fixture types

1) Standard rectangular electromagnetic chuck Application: Rectangular table surface grinding machines. 2) Heavy-duty electromagnetic chuck Application: Milling machines, planers, machining centers. 3) Fine-pole electromagnetic chuck Application: Rectangular table surface grinding machines, milling machines. 4) Multi-function heavy-duty electromagnetic chuck Application: Rectangular table surface grinding machines. 5) Rotary electromagnetic chuck Application: Various surface grinding machines. 6) Electromagnetic chuck for knife grinding Application: Knife grinding machines. 7) Circular electromagnetic chuck (concentric type) Application: Circular table surface grinding machines. 8) Circular electromagnetic chuck (radial pole type) Application: Circular table surface grinding machines. 9) Circular electromagnetic chuck (plum blossom pole type) Application: Circular table surface grinding machines. An electromagnetic chuck is an electromagnetic fixture that secures the workpiece being machined through the suction force generated by the chuck body when the electromagnetic coil is energized. The electromagnetic chuck consists of several parts, including an iron core, coil, faceplate, and bracket. The electromagnet, composed of the coil and iron core, is the main part of the electromagnetic chuck.

lissmac fixture applications

A fixture is a process device used to quickly secure the workpiece during machining, maintaining the correct relative positions of the machine tool, cutting tool, and workpiece. In other words, Workholding tooling fixtures are indispensable components in mechanical machining. Driven by the development of machine tool technology towards high speed, high efficiency, precision, composite, intelligent, and environmentally friendly directions, fixture technology is moving towards high precision, high efficiency, modularity, combination, universality, and economy. Fixtures are also known as clamps. Broadly speaking, any device used to quickly, conveniently, and safely install workpieces in any operation of the process can be called a fixture. Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures. Among these, machine tool fixtures are the most common and are often simply referred to as fixtures. When machining workpieces on machine tools, to ensure that the surface of the workpiece meets the technical requirements specified in the drawings, such as dimensions, geometric shape, and mutual positional accuracy with other surfaces, the workpiece must be properly positioned (location) and firmly clamped (clamping) before machining. The application of machine tool fixtures helps ensure machining accuracy of the workpiece and stabilize product quality; helps improve labor productivity and reduce costs; helps improve working conditions for workers and ensure safe production; helps expand the process range of machine tools, achieving "multi-purpose use of one machine". Fixtures typically consist of positioning elements (to determine the correct position of the workpiece in the fixture), clamping devices, tool-setting and guiding elements (to determine the relative position of the tool to the workpiece or guide the tool direction), indexing devices (to allow the workpiece to complete machining at several stations in one installation, including rotary indexing devices and linear movement indexing devices), connecting elements, and the fixture body (fixture base). Fixtures are also widely used in electronics manufacturers. To improve production efficiency and product quality, tooling fixtures are commonly used in the middle and later stages of production for functional testing or auxiliary assembly (capable of assembling fixed shapes and heights, etc.). Their actual applications in electronic manufacturing plants are very extensive. Since they are non-standard custom-made items, the possibilities are limited only by imagination.

lissmac fixture selection and 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, 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 the load allowed to be lifted under specified operating conditions, also known as the rated lifting capacity. Generally, 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 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.

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