Germany georg noll workholding fixtures georg noll models georg noll prices

georg noll workholding fixtures are any tools connected to the edge (joint) of a robot that perform a specific function. This may include robot grippers, robot tool changers, robot collision sensors, robot rotary unions, robot force tools, compliance devices, robot spray guns, robot deburring tools, robot arc welding torches, robot electric welding torches, and more. Robot end-effectors are generally considered peripheral equipment, accessories, tools, or arm-end tools (EOA) for robots. 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.

georg noll workholding fixture structure

The cross-sectional shape and distribution of the magnetic poles vary depending on the workpiece. Common structures for electromagnetic chucks include rectangular and circular types. Rectangular magnetic poles are arranged either longitudinally or transversely. Longitudinal arrangement of rectangular magnetic poles is suitable for securing larger workpieces, while transverse arrangement is suitable for securing smaller workpieces. Circular chucks are suitable for securing ring-shaped workpieces or workpieces with complex geometries. The main characteristics of standard electromagnetic chucks are: magnetic flux lines are evenly distributed across the chuck surface, magnetic attraction cannot be concentrated, and the magnetic force per unit area is relatively low; the direction of the magnetic force is perpendicular to the chuck surface and difficult to change, generating only one type of magnetic force for a given contact area; the point of application of the magnetic force is limited to the contact surface between the workpiece and the chuck and cannot be arbitrarily changed. Therefore, disadvantages during machining include low positioning accuracy, insufficient clamping force, narrow scope of application, and lower production efficiency.

georg noll workholding fixture applications

Fixtures are process devices used to rapidly secure workpieces during machining, maintaining the correct relative positions between the machine tool, cutting tool, and workpiece. In other words, Workholding tooling fixtures are indispensable components in mechanical machining. Driven by the development of machine tool technology towards high speed, high efficiency, precision, complexity, intelligence, and environmental friendliness, fixture technology is evolving towards high precision, high efficiency, modularity, combinability, universality, and cost-effectiveness. Fixtures are also known as clamps. Broadly speaking, any device used to quickly, conveniently, and safely install workpieces during any step of the manufacturing process can be called a fixture. Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures. Among these, machine tool fixtures are the most common and are often referred to simply as fixtures. When machining workpieces on machine tools, the workpiece must be properly located (positioning) and securely clamped (clamping) before processing to ensure that the surface meets the technical requirements specified in the drawings, such as dimensions, geometric shapes, and mutual positional accuracy relative to other surfaces. The use of machine tool fixtures helps ensure machining accuracy and stabilize product quality; improves labor productivity and reduces costs; improves working conditions and ensures safe production; and expands the technological capabilities of machine tools, enabling "multi-purpose use of a single machine." Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping devices, tool-setting/guiding elements (to determine the relative position between the tool and workpiece or guide the tool direction), indexing devices (to allow the workpiece to undergo machining at multiple stations in a single setup, including rotary indexing and linear indexing devices), connecting elements, and the fixture body (base). Fixtures are also widely used in electronics manufacturing. To improve production efficiency and product quality, tooling fixtures are commonly used in the middle and later stages of production for functional testing or auxiliary assembly (achieving fixed shapes and heights, etc.). Their actual applications in electronic manufacturing plants are extremely broad; since they are often custom-made non-standard items, the possibilities are virtually limitless.

georg noll workholding fixture maintenance

When using vacuum suction cups (without clamps), note that the manipulator's movement speed should not be too high; otherwise, shear forces will act on the suction cup, causing the product to drop easily during rapid twisting. In some cases, a clamp can be used to ensure safe transport of the product. Considering the possibility of products sticking to the mold, an air clamp is usually installed to address this issue. When the product's surface area is too small or the product is too heavy for vacuum suction cups, clamps can also be used to solve the problem. If strict aesthetic requirements apply to the product, the clamped area must not be on the outer surface. To address this, a sensor circuit can be installed. Once the sensor confirms that the clamp or suction cup has securely grasped the product, it sends a signal to the manipulator to proceed with the next operation. In cases where the manipulator's motion capability is limited and manual twisting or prying is required to demold or remove the product from the forming area, a special cylinder capable of independent movement, unrelated to the manipulator's operation, can be added to improve the situation.

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