German eisenacher workpiece fixtures eisenacher model eisenacher price

eisenacher workpiece fixtures refer to devices used in the mechanical manufacturing process to secure the workpiece, ensuring it occupies the correct position for machining or inspection; they are also known as jigs. In a broad sense, any device used to quickly, conveniently, and safely install workpieces during any step of the process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping devices, tool-setting guide elements (to determine the relative position of the tool to the workpiece or guide the tool direction), indexing devices (enabling the workpiece to undergo machining at several stations in a single setup, including rotary indexing devices and linear indexing devices), connecting elements, and fixture bodies (fixture bases). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which 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 workpiece surface 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 located (positioned) and securely clamped (clamped) before machining.

eisenacher Workpiece Fixture Classification

Due to the different operating characteristics and structural forms of various machine tools, different requirements are placed on the structure of the fixtures used. According to the machine tool used, fixtures can be divided into: lathe fixtures, milling machine fixtures, drilling machine fixtures, boring machine fixtures, grinding machine fixtures, gear machine tool fixtures, and other machine tool fixtures. Based on the clamping power source used, they can be divided into: manual fixtures, pneumatic fixtures, hydraulic fixtures, pneumatic-hydraulic fixtures, electric fixtures, magnetic fixtures, and vacuum fixtures. Specialized classifications include general-purpose fixtures, special-purpose fixtures, general-purpose adjustable fixtures, group fixtures, modular fixtures, and pallet fixtures. Pallet fixtures are used in automated lines. These fixtures not only serve to clamp the workpiece but also become integrated with the workpiece, moving from one station to the next along the automated line for different machining operations.

eisenacher Workpiece Fixture Features

1) Chuck holding force: Electrically controlled powerful chucks offer superior holding force, reaching up to 16kg/cm², with uniform and adjustable magnetic distribution, suitable for various heavy-duty machining, roughing, and finishing operations; ordinary powerful chucks have weaker and uneven holding force, unable to meet the requirements of heavy-duty machining. 2) Machining accuracy: The holding force of electrically controlled powerful chucks does not require a continuous power supply to maintain, generating no heat during continuous operation, thus avoiding thermal deformation of the workpiece. Meanwhile, the strong and uniform surface holding force ensures the highest machining accuracy even if the workpiece extends beyond the table surface; whereas ordinary electromagnetic chucks require a continuous current supply, generating heat after a period of operation, which not only causes thermal deformation of the workpiece but also reduces the chuck's magnetic force, failing to guarantee machining accuracy. 3) Performance: Electrically controlled powerful chucks can be used continuously, even for more than 20 hours per day, without any failures or need for maintenance; ordinary permanent magnet chucks may experience a decline in holding force after about half a year of use, while electromagnetic chucks can only operate for a few hours a day, are prone to operational issues, and require frequent replacement and maintenance of internal components. 4) Operational efficiency: Ordinary powerful chucks require significant time for workpiece adjustment, accounting for 40%-50% of the entire machining process, and clamping and positioning are prone to obvious errors, resulting in high scrap rates and very low efficiency; electrically controlled powerful chucks feature automatic auxiliary positioning, allowing workpiece clamping or release to be completed in 0.3 seconds with the simple press of a button, significantly improving production efficiency.

eisenacher Workpiece Fixture Applications

1) Consistently ensures workpiece machining accuracy: When using fixtures to clamp workpieces, the positional accuracy of the workpiece relative to the tool and machine tool is guaranteed by the fixture, unaffected by the worker's skill level, ensuring consistent machining accuracy for a batch of workpieces. 2) Reduces auxiliary time and improves labor productivity: Using fixtures makes workpiece clamping convenient and fast, eliminating the need for marking and alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases their rigidity, allowing for higher cutting volumes; fixtures capable of clamping multiple workpieces or multiple stations can be used, along with efficient clamping mechanisms, further enhancing labor productivity. 3) Expands the usage range of machine tools, achieving multi-functionality: By attaching different types of fixtures according to the forming motion of the machining machine tool, the original process range of the machine tool can be expanded. For example, installing a boring template on the carriage of a lathe or the table of a radial drilling machine allows for boring operations on box-type parts. 4) Ensures machining accuracy: Using fixtures for installation accurately determines the mutual positions between the workpiece, machine tool, and tool. The positional accuracy of the workpiece is guaranteed by the fixture, unaffected by the worker's skill level, resulting in high and stable machining accuracy. 5) Increases productivity and reduces costs: Clamping workpieces with fixtures allows for rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases their rigidity, allowing for higher cutting volumes; fixtures capable of clamping multiple workpieces or multiple stations can be used, along with efficient clamping mechanisms, all of which contribute to increased labor productivity. Additionally, using fixtures stabilizes product quality, reduces scrap rates, allows for the assignment of workers with lower skill levels, and significantly lowers production costs. 6) Expands the process range of machine tools: Using special-purpose fixtures can change the original purpose of the machine tool and expand its usage range, achieving multi-functionality. For example, installing boring template fixtures on lathes or radial drilling machines allows for boring operations on hole systems of box-type parts; special-purpose fixtures can also convert lathes into broaching machines, fully leveraging the capabilities of general-purpose machine tools. 7) Reduces worker labor intensity: Clamping workpieces with fixtures is convenient and fast. When using pneumatic, hydraulic, or other clamping devices, worker labor intensity can be reduced.

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