wolk fixtures Germany wolk models wolk prices

wolk fixtures are devices that hold objects to manipulate them. They can grip and release objects while performing certain actions. Motion devices often mimic human movements; in the case of grippers, they mimic finger movements. The "fingers" themselves do not belong to the gripper; they are merely specialized custom tools for holding objects, called "jaws." Two main gripping actions: External gripping: This is the most common method for holding objects. It is the simplest and requires the shortest stroke length. When the gripper jaws close, the clamping force applied by the gripper holds the object. Internal gripping: In some applications, due to the geometry of the object or the need to access the exterior of the object, it is necessary to grip the object from the center. In this case, the gripper holds the object through expansion force.

wolk fixture classification

1) Lathe fixtures: Fixtures used on lathes to machine the internal and external rotary surfaces and end faces of workpieces are called lathe fixtures. Most lathe fixtures are mounted on the spindle, and a few are mounted on the saddle or bed. 2) CMM fixtures: Used on coordinate measuring machines, utilizing their modular support and reference devices to achieve flexible fixation of the measured workpiece. This device can be automatically programmed to support the workpiece and establish an unlimited number of workpiece configuration reference points. Advanced dedicated software can directly generate the workpiece clamping program within seconds based on the geometric data of the workpiece. 3) Industrial robot fixtures: All mounted on industrial robots for use in industrial automation equipment, representing one of the new technologies in modern industrial automation equipment. They mainly appear in modern industrial production in conjunction with robots, with common applications including machine tool loading and unloading, workpiece palletizing and depalletizing, welding, and grinding in automated unmanned factories. 4) Milling machine fixtures: All mounted on the milling machine table, moving with the machine table during feed motion. They mainly consist of positioning devices, clamping devices, fixture bodies, connecting elements, and tool-setting elements. During milling, the cutting force is large, and the cutting is intermittent, resulting in significant vibration. Therefore, milling machine fixtures require high clamping force, and high stiffness and strength are required. 5) Bearing housing fixtures: To ensure and improve the production quality of bearing housings, in addition to using machine tools and other mechanical equipment, a large amount of process equipment is used, including bearing housing fixtures, molds, cutting tools, and related auxiliary tools. Bearing housing fixtures are specialized production tools designed to ensure the product quality of bearing housings, making the production process more convenient. Different bearing housing fixtures vary in structure, form, operating conditions, and design principles, resulting in a wide variety of types and styles. They account for a significant proportion in both quantity and variety. These bearing housing fixtures can accurately determine the relative position between the workpiece and the tool, allowing the workpiece to be clamped to complete the motions required during machining. Since bearing housing fixtures play a very important role in the bearing housing production process, the drafting of bearing housing fixture design drawings is also very important.

wolk fixture applications

Fixtures are process devices used to quickly 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, composite processing, intelligence, and environmental protection, fixture technology is evolving towards high precision, high efficiency, modularity, combination, universality, and economy. Fixtures are also known as clamps. Broadly speaking, any device used to quickly, conveniently, and safely install workpieces in any process step 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, to ensure that the surface of the workpiece meets the technical requirements specified in the drawings, such as dimensions, geometric shape, and mutual positional accuracy with other surfaces, the workpiece must be properly positioned (location) and securely clamped (clamping) before machining. The application of machine tool fixtures helps ensure machining precision and stabilize product quality; improves labor productivity and reduces costs; improves working conditions and ensures safe production; and expands the process range of machine tools, achieving "multi-purpose use of one machine." Fixtures typically consist of positioning 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 allow the workpiece to complete machining at several stations in one installation, including rotary indexing devices and linear movement 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 (to assemble fixed shapes and heights, etc.). Their actual applications in electronic manufacturing plants are very extensive. Since they are non-standard custom-made, the possibilities are limited only by imagination.

wolk 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 parallel two-jaw gripper can be used to address dimensional deviations. For cylindrical objects, a two-jaw gripper can also be used for holding. Note that containment or enveloping grips require 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 consider. 3) Accessibility: This relates both to the operation being performed and the spatial requirements of the gripper jaws. If work needs to be performed on the exterior of the object, internal gripping is required. Scissor-style grippers are usually less expensive 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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