obo bettermann fixtures, German obo bettermann models, obo bettermann prices

obo bettermann 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. Broadly speaking, any device used to quickly, conveniently, and safely mount workpieces during any operation in the process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece in the fixture), clamping devices, tool-setting and guiding elements (to determine the relative position between the tool and the 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 surface of the workpiece meets technical requirements such as dimensions, geometric shape, and mutual positional accuracy with other surfaces as specified in the drawings, the workpiece must be properly located (positioned) and securely clamped (clamped) before machining.

obo bettermann fixture structure

1) Locating elements: These contact the locating reference of the workpiece to determine its correct position in the fixture, thereby ensuring the correct relative position between the workpiece and the tool and machine tool movements during machining. 2) Clamping devices: Used to clamp the workpiece, keeping it in the established position within the fixture during cutting. As shown in Figure 6-1, such as nut 5 and open washer. 3) Tool-setting and guiding elements or devices: These elements ensure the correct position between the workpiece and the tool. Elements used to determine the correct position of the tool before machining are called tool-setting elements, such as tool-setting blocks. Elements used to determine the tool position and guide the tool during machining are called guiding elements. 4) Connecting elements: Elements that connect the fixture to the machine tool, ensuring the mutual positional relationship between the machine tool and the fixture. 5) Fixture body: The base component used to connect or fix various elements and devices on the fixture into a single unit. It connects and aligns with relevant parts of the machine tool, giving the fixture a definite position relative to the machine tool. 6) Other elements and devices: Some fixtures require indexing mechanisms based on the machining requirements of the workpiece, and milling machine fixtures also require locating keys, etc. Not all of these components are indispensable for every type of machine tool fixture, but any fixture must have locating elements and clamping devices, as they are key to ensuring the machining accuracy of the workpiece, with the aim of accurately positioning and securely clamping the workpiece.

obo bettermann fixture features

Workpieces for small-batch, multi-variety production already account for approximately 85% of the total number of workpiece types. Modern production requires enterprises to frequently update their product varieties to adapt to market demands and competition. However, most enterprises are still accustomed to extensively using traditional special-purpose fixtures. Generally, factories with medium production capacity own thousands or even nearly ten thousand sets of special-purpose fixtures. On the other hand, in enterprises with multi-variety production, approximately 50~80% of special-purpose fixtures need to be updated every 3~4 years, while the actual wear of the fixtures is only about 10~20%. To meet the application of new machining technologies such as CNC machine tools, machining centers, group technology, and Flexible Manufacturing Systems (FMS), machine tool fixtures have the following characteristics: 1) Enable rapid and convenient equipment setup for new product production, shortening production preparation cycles and reducing production costs; 2) Capable of clamping a group of workpieces with similar characteristics; 3) Suitable for high-precision machine tool fixtures for precision machining; 4) Suitable for new types of machine tool fixtures for various modern manufacturing technologies; 5) Adopt efficient clamping devices powered by hydraulic stations, etc., to further reduce labor intensity and improve labor productivity; 6) Improve the standardization level of machine tool fixtures. This is mainly reflected in four aspects: standardization, precision, efficiency, and flexibility.

obo bettermann fixture applications

1) Stable assurance of 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 marking and alignment, significantly reducing auxiliary time; clamping workpieces in fixtures increases their rigidity, allowing for increased cutting amounts; fixtures capable of clamping multiple workpieces or multiple stations can be used, along with efficient clamping mechanisms, to further improve labor productivity. 3) Expand the usage range of machine tools and achieve multi-functionality: By attaching different types of fixtures according to the forming movements of the machining machine tool, the original process range of the machine tool can be expanded. For example, installing boring jigs 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 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) 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 their rigidity, allowing for increased cutting amounts; fixtures for clamping multiple workpieces or multiple stations can be used, along with efficient clamping mechanisms, all of which contribute to improved 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 jig 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, fully leveraging the role 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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