hammacher instrumente fixtures, German hammacher instrumente models, hammacher instrumente prices

hammacher instrumente fixtures refer to devices used in the mechanical manufacturing process to secure workpieces in the correct position for machining or inspection, 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 and workpiece or guide the tool direction), indexing devices (to enable 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 (positioning) and securely held (clamping) before machining.

hammacher instrumente fixture classification

Due to the different operating characteristics and structural forms of various machine tools, different requirements are correspondingly 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. According to the clamping power source adopted by the fixture, 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 on 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.

hammacher instrumente fixture operation

1) Assemble the two engine bushings onto the 1 strut according to the "Strut Welding Assembly" drawing, and place them on the fixture body, position the 1 strut using stop pins and stop plates, clamp the 1 strut with a spiral clamp; simultaneously position the two 4 engine bushings with pins, and clamp them with quick-release spiral clamping devices; 2) After tack welding, release the quick-release spiral clamping devices, pull out the pins, remove for welding; 3) Place the welded assembly back on the fixture body, position the welded assembly using stop pins and stop plates, clamp the welded assembly with a spiral clamp; then place the assembly of the M6 nut and horn support on top of the welded assembly, position it using the tapered head pin on the spiral clamping mechanism and the groove cut into the pressure plate of the spiral clamping mechanism, and clamp it with the spiral clamping mechanism; 4) Perform three-sided welding on the assembly of the M6 nut and horn support and the strut, then release all spiral clamps, the pressure plate of the spiral clamping mechanism clamping the M6 nut and horn support assembly is lifted by springs, the positioning tapered head pin on it disengages from the welded assembly accordingly, then push out the pressure plate so that one end disengages from the spiral clamping mechanism stud, rotate the pressure plate to the side of the welded assembly, then remove the welded assembly.

hammacher instrumente fixture applications

1) Consistently ensure workpiece machining accuracy: When clamping workpieces with fixtures, 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, making the machining accuracy of a batch of workpieces consistent. 2) Reduce auxiliary time and improve labor productivity: Using fixtures makes workpiece clamping convenient and fast, eliminating the need for layout and alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases workpiece rigidity, allowing for increased cutting amounts; fixtures capable of clamping multiple workpieces or multiple stations can be used, and high-efficiency clamping mechanisms can be adopted to further improve labor productivity. 3) Expand the usage range of machine tools to achieve multi-functionality: Based on the forming motion of the machining machine tool, attaching different types of fixtures can expand the original process range of the machine tool. For example, installing a boring template on the carriage of a lathe or the table of a radial drilling machine allows for boring processing of box parts. 4) Ensure machining accuracy: Using fixtures for installation can accurately determine the mutual position 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) Improve productivity and reduce costs: Clamping workpieces with fixtures allows for rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces with fixtures increases workpiece rigidity, allowing for increased cutting amounts; multi-piece and multi-station fixtures can be used to clamp workpieces, and high-efficiency clamping mechanisms can be adopted, all of which help improve labor productivity. Additionally, using fixtures stabilizes product quality, reduces scrap rates, allows for the assignment of workers with lower technical grades, and significantly reduces production costs. 6) Expand 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, after installing boring template fixtures on lathes or radial drilling machines, boring processing of box hole systems can be performed; special-purpose fixtures can also convert lathes into broaching machines to fully utilize the capabilities of general-purpose machine tools. 7) Reduce workers' labor intensity: Clamping workpieces with fixtures is convenient and fast. When using pneumatic, hydraulic, or other clamping devices, workers' labor intensity can be reduced.

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