German Kuka workholding fixtures Kuka model Kuka price

Kuka workholding fixture is an electromagnetic chuck that secures the workpiece by the suction force generated by the chuck body when the electromagnetic coil is energized. The electromagnetic chuck consists of several parts, including an iron core, coil, faceplate, and bracket. The electromagnet, composed of the coil and iron core, is the main part of the electromagnetic chuck. Electromagnetic chucks vary due to differences in design methods or materials used, and they are continuously developing and improving. Electromagnetic chucks were initially used on grinding machines to replace clamping plates and bolts for securing workpieces to be ground. Such electromagnetic chucks are relatively simple and can only secure flat workpieces. This is the traditional electromagnetic chuck, which has significant limitations in its application. With industrial development, the demand for electromagnetic tools from enterprises has grown, and the requirements have become higher, prompting a series of improvements to electromagnetic chucks to meet production needs.

Kuka workholding fixture structure

1) Locating elements: These contact the locating datum of the workpiece to determine the correct position of the workpiece in the fixture, thereby ensuring the correct relative position between the workpiece and the tool and 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: A 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; 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 a clamping device. They are key to ensuring the machining accuracy of the workpiece, with the aim of accurately positioning and firmly clamping the workpiece.

Kuka workholding fixture applications

A fixture is a process device used to quickly secure the workpiece during machining, maintaining the correct relative positions of the machine tool, 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, composite, intelligent, and environmentally friendly directions, fixture technology is moving towards high precision, high efficiency, modularity, combination, universality, and economy. Fixtures are also known as jigs. Broadly speaking, any device used to quickly, conveniently, and safely install workpieces in any operation of the 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 simply referred to as fixtures. When machining workpieces on machine tools, the workpiece must be properly positioned (locating) and firmly clamped (clamping) before machining to ensure that the surface of the workpiece meets the technical requirements specified in the drawings, such as dimensions, geometric shapes, and mutual positional accuracy with other surfaces. The application of machine tool fixtures helps ensure the machining accuracy of the workpiece and stabilize product quality; helps improve labor productivity and reduce costs; helps improve working conditions for workers and ensure safe production; and helps expand the process range of machine tools, achieving "multi-purpose use of one machine". 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 of the tool and workpiece or guide the tool direction), indexing devices (to allow the workpiece to complete machining at several stations in one installation, including rotary indexing devices and linear motion indexing devices), connecting elements, and the fixture body (fixture base). Fixtures are also widely used in electronics manufacturers. 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 (capable of assembling fixed shapes and heights, etc.). Their actual use in electronic manufacturing plants is very extensive; since they are non-standard custom-made, the possibilities are limited only by imagination.

Kuka workholding fixture selection

When selecting pneumatic grippers and jaw designs, these are the main factors to consider: 1) Part shape, orientation, and dimensional variations: If the object has two opposing flat surfaces, a double-jaw parallel gripper can be used to address dimensional deviations. For cylindrical objects, a double-jaw gripper can also be used for clamping. Note that retaining or encompassing clamping requires less force. 2) Part weight: The clamping force must be sufficient to hold the object securely while performing the required operations. The type of jaw design must be considered when calculating the required clamping force. Please note that safety factors should be considered when selecting the required force, and air pressure is also a factor to note. 3) Accessibility: This relates both to the operation being performed and to the spatial size of the gripper jaws. If work is to be performed on the exterior of the object, internal clamping is required. Scissor-style grippers are usually lower in price but require more space for jaw movement. 4) Environment: Grippers used in harsh environments or cleanrooms require corresponding designs. 5) Object retention: When air pressure is no longer supplied, the gripper will release its hold on the object, causing it to drop. For such applications, spring-assisted grippers can be used.

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