The fixture is an indispensable part of machining. Driven by the development of machine tool technology in the direction of high speed, high efficiency, precision, compound, intelligent and environmental protection, the fixture technology is developing towards high precision, high efficiency, module, combination, general and economic direction.
First, high precision With the improvement of machine tool processing precision, in order to reduce the positioning error, improve the machining accuracy, the manufacturing precision of the fixture is required to be higher. The positioning pitch accuracy of the fixture is up to ±5μm, and the verticality of the fixture support surface is 0.01mm/ 300mm, parallelism up to 0.01mm/500mm. The 4m long and 2m wide hole series combination welding fixture platform manufactured by German demmeler has a contour error of ±0.03mm; the precision of the precision pliers is less than 5μm; the positioning of the fixture is repeated. The precision is up to ±5μm; the Swiss EROWA flexible fixture has a repeatability of up to 2~5μm. The accuracy of machine tool fixtures has been increased to the micron level, and the world-renowned fixture manufacturing companies are precision machinery manufacturers. Admittedly, in order to adapt to the needs and economy of different industries, the clips have different models and different grades of precision standards to choose from.
Second, high efficiency In order to improve the production efficiency of the machine tool, there are more and more fixtures for double-sided, four-sided and multi-piece clamping. In order to reduce the installation time of the workpiece, various automatic centering clamping, precision pliers, lever clamping, cam clamping, pneumatic and hydraulic clamping, etc., the rapid clamping function is constantly being updated. The new electronically controlled permanent magnet clamps only take 1-2 seconds to tighten and loosen the workpiece. The fixture structure is simplified, which creates conditions for multi-station, multi-face and multi-piece machining of the machine tool. In order to shorten the time required to install and adjust the fixture on the machine, the Swedish 3R fixture can complete the installation and calibration of the wire-cutting machine fixture in just one minute. With the ball lock clamping system of Jergens, the fixture can be positioned and locked on the machine table within 1 minute. The ball lock clamping system is used to replace the fixture on the flexible production line, which reduces the downtime. Time, the role of improving production efficiency.
Third, module, modular fixture component modularization is the basis for the realization of the combination. The modularization of serialized, standardized fixture components and rapid assembly into various fixtures has become the basis for the development of fixture technology. Labor saving, time saving, material saving and energy saving are reflected in the innovation of various advanced fixture systems. The modular design lays the foundation for computer-aided design and assembly of fixtures. CAD technology can be used to build component libraries, typical fixture libraries, standards and user-used archives, to optimize fixture design, and to assemble fixtures for users in 3D solids. The cutting process of the simulation tool can not only provide users with correct and reasonable fixture and component matching solutions, but also accumulate experience, understand market demand, and continuously improve and perfect the fixture system. The combination fixture branch cooperates with Huazhong University of Science and Technology, and is working on creating a fixture professional technology website to provide a common platform for information exchange and fixture product consultation and development for the fixture industry, and strive to realize the commonization of fixture design and service, remote informationization and business e-commerce. Turn.
Fourth, the versatility of general and economic fixtures directly affects their economy. Adopting modular and combined fixture system, the one-time investment is relatively large. Only the fixture system has strong recombinability, reconfigurability and scalability, wide application range, good versatility, high utilization rate of the fixture, and quick recovery of investment. In order to reflect the economic good. Germany's demmeler's hole series combination welding fixtures can be assembled into a wide variety of welding fixtures using only a variety of components and specifications. The function of the components is strong, so that the versatility of the fixture is good, the components are few and precise, the cost of the matching is low, and the economy and practicality have the value of popularization and application.
First, high precision With the improvement of machine tool processing precision, in order to reduce the positioning error, improve the machining accuracy, the manufacturing precision of the fixture is required to be higher. The positioning pitch accuracy of the fixture is up to ±5μm, and the verticality of the fixture support surface is 0.01mm/ 300mm, parallelism up to 0.01mm/500mm. The 4m long and 2m wide hole series combination welding fixture platform manufactured by German demmeler has a contour error of ±0.03mm; the precision of the precision pliers is less than 5μm; the positioning of the fixture is repeated. The precision is up to ±5μm; the Swiss EROWA flexible fixture has a repeatability of up to 2~5μm. The accuracy of machine tool fixtures has been increased to the micron level, and the world-renowned fixture manufacturing companies are precision machinery manufacturers. Admittedly, in order to adapt to the needs and economy of different industries, the clips have different models and different grades of precision standards to choose from.
Second, high efficiency In order to improve the production efficiency of the machine tool, there are more and more fixtures for double-sided, four-sided and multi-piece clamping. In order to reduce the installation time of the workpiece, various automatic centering clamping, precision pliers, lever clamping, cam clamping, pneumatic and hydraulic clamping, etc., the rapid clamping function is constantly being updated. The new electronically controlled permanent magnet clamps only take 1-2 seconds to tighten and loosen the workpiece. The fixture structure is simplified, which creates conditions for multi-station, multi-face and multi-piece machining of the machine tool. In order to shorten the time required to install and adjust the fixture on the machine, the Swedish 3R fixture can complete the installation and calibration of the wire-cutting machine fixture in just one minute. With the ball lock clamping system of Jergens, the fixture can be positioned and locked on the machine table within 1 minute. The ball lock clamping system is used to replace the fixture on the flexible production line, which reduces the downtime. Time, the role of improving production efficiency.
Third, module, modular fixture component modularization is the basis for the realization of the combination. The modularization of serialized, standardized fixture components and rapid assembly into various fixtures has become the basis for the development of fixture technology. Labor saving, time saving, material saving and energy saving are reflected in the innovation of various advanced fixture systems. The modular design lays the foundation for computer-aided design and assembly of fixtures. CAD technology can be used to build component libraries, typical fixture libraries, standards and user-used archives, to optimize fixture design, and to assemble fixtures for users in 3D solids. The cutting process of the simulation tool can not only provide users with correct and reasonable fixture and component matching solutions, but also accumulate experience, understand market demand, and continuously improve and perfect the fixture system. The combination fixture branch cooperates with Huazhong University of Science and Technology, and is working on creating a fixture professional technology website to provide a common platform for information exchange and fixture product consultation and development for the fixture industry, and strive to realize the commonization of fixture design and service, remote informationization and business e-commerce. Turn.
Fourth, the versatility of general and economic fixtures directly affects their economy. Adopting modular and combined fixture system, the one-time investment is relatively large. Only the fixture system has strong recombinability, reconfigurability and scalability, wide application range, good versatility, high utilization rate of the fixture, and quick recovery of investment. In order to reflect the economic good. Germany's demmeler's hole series combination welding fixtures can be assembled into a wide variety of welding fixtures using only a variety of components and specifications. The function of the components is strong, so that the versatility of the fixture is good, the components are few and precise, the cost of the matching is low, and the economy and practicality have the value of popularization and application.
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