German schmalz workpiece fixtures schmalz model schmalz price

schmalz workpiece fixtures are tools with specific functions connected to the edge (joint) of a robot. This may include robot grippers, robot tool changers, robot collision sensors, robot rotary connectors, robot pressure tools, compliance devices, robot spray guns, robot deburring tools, robot arc welding torches, robot electric welding torches, etc. Robot end-effectors are generally considered peripheral equipment, accessories, tools, or arm-end tools (EOA) of the robot. Main elements: mechanism type, gripping method, gripping force, drive unit and control object characteristics, mass, shape, center of gravity position, dimensions, dimensional tolerances, surface condition, material, strength, operating parameters, operating space environment, operating accuracy, operating speed and acceleration, clamping time.

schmalz workpiece fixture structure

1) Positioning elements: These contact the positioning reference of the workpiece to determine its correct position in the fixture, thereby ensuring the correct relative position between the workpiece and the tool/machine tool motion during machining. 2) Clamping device: 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 workpiece machining requirements; milling machine fixtures also require positioning keys, etc. Not all these components are indispensable for every machine tool fixture, but any fixture must have positioning elements and a clamping device. They are key to ensuring workpiece machining accuracy, with the aim of accurately positioning and firmly clamping the workpiece.

schmalz workpiece fixture features

1) Standardization: Standardization and generalization of machine tool fixtures are two interrelated aspects. China already has national standards for fixture parts and components: GB/T2148~T2259－91, as well as standards for various general-purpose fixtures, modular fixtures, etc. Standardization of machine tool fixtures facilitates commercial production, shortens production preparation cycles, and reduces total production costs. 2) Precision: As the precision of mechanical products increases, the precision requirements for fixtures inevitably rise. There are many types of high-precision fixture structures, such as multi-tooth discs for precise indexing, with an indexing accuracy of ±0.1"; and high-precision three-jaw self-centering chucks for precision turning, with a centering accuracy of 5μm. 3) High efficiency: High-efficiency fixtures are mainly used to reduce basic and auxiliary machining time, thereby improving labor productivity and reducing worker labor intensity. Common high-efficiency fixtures include automated fixtures, high-speed fixtures, and fixtures with clamping force devices. For example, using an electric vise on a milling machine to clamp workpieces can improve efficiency by approximately 5 times; using a high-speed three-jaw self-centering chuck on a lathe ensures that the jaws still firmly clamp the workpiece at a test speed of 9000r/min, allowing a significant increase in cutting speed. In addition to configuring corresponding high-efficiency, automated fixtures in production lines and automatic lines, various automatic workpiece clamping fixtures and automatic fixture changing devices have appeared on CNC machines, especially machining centers, fully leveraging the efficiency of CNC machines. 4) Flexibility: The flexibility of machine tool fixtures is similar to that of machine tools. It refers to the ability of machine tool fixtures to adapt to variable process factors through adjustment, combination, etc. The main variable process factors include: operation characteristics, production batch size, workpiece shape and dimensions, etc. New types of fixtures with flexibility characteristics mainly include: modular fixtures, general-purpose adjustable fixtures, group fixtures, modular fixtures, and CNC fixtures. To meet the needs of modern mechanical industry for multi-variety, small-to-medium batch production, expanding the flexibility of fixtures, changing the non-disassemblable structure of special-purpose fixtures to a disassemblable structure, and developing adjustable fixture structures will be the main direction of current fixture development.

schmalz workpiece fixture applications

1) Can stably 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) Can reduce auxiliary time and improve labor productivity: Using fixtures to clamp workpieces is convenient and fast; workpieces do not need scribing and alignment, significantly reducing auxiliary time; clamping workpieces in fixtures improves their rigidity, allowing increased cutting amounts; fixtures for clamping multiple workpieces or at multiple stations can be used, along with high-efficiency clamping mechanisms, further improving labor productivity. 3) Can expand 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 jig on the carriage of a lathe or the table of a radial drilling machine allows for boring processing of box-type 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 rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces with fixtures improves their rigidity, allowing increased cutting amounts; fixtures for clamping multiple workpieces or at multiple stations can be used, along with high-efficiency clamping mechanisms. These factors all help improve labor productivity. Additionally, using fixtures stabilizes product quality, reduces scrap rates, allows the use of lower-skilled workers, 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, installing boring jig fixtures on lathes or radial drilling machines allows boring processing of hole systems in box-type parts; special-purpose fixtures can also convert lathes for broaching use, fully leveraging the role of general-purpose machine tools. 7) Reduce 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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