German ASS Maschinenbau workholding fixtures, ASS Maschinenbau models, ASS Maschinenbau prices

ASS Maschinenbau workholding fixtures are any 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 unions, 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). Key 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.

ASS Maschinenbau workholding fixture structure

1) Locating elements: These contact the locating datums 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 movements 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, 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 all 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 defined position relative to the machine tool. 6) Other elements and devices: Some fixtures require indexing mechanisms based on workpiece machining requirements; milling fixtures also require locating keys, etc. Not all these components are indispensable for every machine tool fixture, but any fixture must have locating elements and a clamping device. They are key to ensuring workpiece machining accuracy, with the aim of positioning the workpiece accurately and clamping it securely.

ASS Maschinenbau workholding 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 and modular fixtures. Standardization of machine tool fixtures facilitates commercial production of fixtures, helps shorten production preparation cycles, and reduces total production costs. 2) Precision: As the precision of mechanical products continues to improve, the precision requirements for fixtures inevitably increase. There are many structural types of precision fixtures, such as multi-tooth discs for precise indexing, with an indexing accuracy of ±0.1"; 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 the basic and auxiliary time of workpiece machining, thereby improving labor productivity and reducing workers' labor intensity. Common high-efficiency fixtures include automated fixtures, high-speed fixtures, and fixtures with clamping force devices. For example, using an electric vise to clamp workpieces on a milling machine can improve efficiency by approximately 5 times; using a high-speed three-jaw self-centering chuck on a lathe ensures that the jaws can still firmly clamp the workpiece at a test speed of 9000r/min, thereby significantly increasing the cutting speed. In addition to configuring corresponding high-efficiency and automated fixtures in production lines and automatic lines, various fixtures for automatic workpiece clamping and automatic fixture changing devices have appeared on CNC machine tools, especially machining centers, fully leveraging the efficiency of CNC machine tools. 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-and-medium-batch production, expanding the degree of flexibility of fixtures, changing the non-detachable structure of special-purpose fixtures to a detachable structure, and developing adjustable fixture structures will be the main direction of current fixture development.

ASS Maschinenbau workholding fixture selection and use

With the continuous development of China's industry, electromagnetic chucks are increasingly widely used in industrial production. The most important aspect of an electromagnetic chuck is its parameters; among the performance parameters, the lifting capacity and duty class are the most critical. The so-called lifting capacity of an electromagnetic chuck refers to the maximum weight of the load allowed to be lifted under specified operating conditions, also known as the rated lifting capacity. Generally, for cranes equipped with an electromagnetic chuck, the lifting capacity should also include the weight of the electromagnetic chuck itself. Rectangular electromagnetic chucks have lifting threaded holes on both sides. During installation, T-shaped screws can be screwed in for lifting. They are fixed to the worktable using T-shaped blocks and screws. Connect the DC power supply and ground wire from the machine tool, then precision grind the upper surface of the chuck once to ensure the parallelism between the upper surface and the bottom surface. When holding a workpiece, sufficient positioning and holding force can be obtained by bridging two adjacent magnetic poles, allowing grinding operations to proceed. Magnetization and demagnetization of the workpiece can be controlled via the machine tool buttons.

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