wallraff josef fixtures, German wallraff josef models, wallraff josef prices

wallraff josef fixtures use hydraulic components to replace mechanical parts, achieving automatic positioning, support, and clamping of workpieces through hydraulic control. They offer advantages such as high clamping force, reliable clamping, stable operation, and ease of use, and are currently widely used in scenarios such as CNC machine tools, machining centers, and automated production lines. The required fixture can be obtained by assembling the selected hydraulic components with the designed mechanical parts. Hydraulic fixtures ensure accurate positioning and secure clamping of the workpiece at the specified position, and can reduce vibration and deformation during machining through floating supports. They can also utilize automatic control to press down and lift the pressure plates, clearing the clamping position during machining. Hydraulic fixtures can withstand large cutting forces during rough machining, ensure accurate positioning during precision machining, and perform support, clamping, and quick release tasks that manual fixtures cannot accomplish.

wallraff josef fixture applications

Whether it is a simple hydraulic fixture or a complex integrated production line, the design process for hydraulic fixtures is the same, proceeding in the following order: formulation of the overall scheme, selection of hydraulic cylinder types and specifications, selection of control valves, design of mechanical parts, selection of pump station accessories, and system connection. Hydraulic fixtures provide powerful clamping and positioning forces for various machining processes. Yunpower cylinders are used for positioning and clamping in automated machining processes. Products such as self-centering vises and self-centering clamping elements provide good positioning, swing cylinders and lever cylinders provide clamping force on products, and support cylinders prevent deformation of products during machining. From simple fixation to robot-assisted machining centers, cylinders provide clamping and support forces to improve production efficiency.

wallraff josef fixture features

Workpieces for small-batch, multi-variety production already account for approximately 85% of the total number of workpiece types. Modern production requires enterprises to frequently update and replace product varieties to adapt to market demands and competition. However, general enterprises are still accustomed to extensively using traditional special-purpose fixtures. In factories with medium production capacity, there are typically thousands or even nearly ten thousand sets of special-purpose fixtures. On the other hand, in enterprises with multi-variety production, approximately 50~80% of special-purpose fixtures need to be updated every 3~4 years, while the actual wear of the fixtures is only about 10~20%. To meet the application of new machining technologies such as CNC machine tools, machining centers, group technology, and Flexible Manufacturing Systems (FMS), machine tool fixtures have the following characteristics: 1) They can quickly and conveniently equip new products for production, shortening the production preparation cycle and reducing production costs; 2) They can clamp a group of workpieces with similar characteristics; 3) They are high-precision machine tool fixtures suitable for precision machining; 4) They are new types of machine tool fixtures suitable for various modern manufacturing technologies; 5) They adopt efficient clamping devices powered by sources such as hydraulic stations to further reduce labor intensity and improve labor productivity; 6) They improve the standardization level of machine tool fixtures. This is mainly manifested in four aspects: standardization, precision, efficiency, and flexibility.

wallraff josef fixture classification

1) Base components: Such as square, rectangular, and circular base plates, used as fixture tooling tables. All five working surfaces of the worktable feature grid-marked holes. The flatness, parallelism, and perpendicularity tolerances of these five surfaces, as well as the positional accuracy of the holes, are very high, ensuring sufficient accuracy for positioning on the table surface and for combining the table with other modules. The dimensions of the base table can be chosen arbitrarily, and special sizes can be custom-made. If high precision is required after combining tables, guide rails can be used to connect them. 2) Support components: Including U type square boxes, L type square boxes, support angle irons, angular connecting blocks, angle gauges, frame-style support bases, etc.; used for height positioning or platform expansion, and for positioning or clamping other accessories. These are components such as shims, spacer plates, support plates, support blocks, and extension plates that are positioned on the platform to ensure the workpiece meets certain height requirements during machining, primarily serving as supports at different heights. 3) Positioning components: Including positioning squares, positioning straight edges, planar squares, V type positioning components, and eccentric circle stops; used for accurately adjusting positioning positions or heights. These are components that precisely position the workpiece to ensure it meets certain dimensional accuracy requirements during machining; used to determine the relative positions between components and between components and workpieces. 4) Adjustment components: Including height adjusters and adjustment shims; Purpose: Components used to adjust positional differences and gaps between components and workpieces. 5) Clamping components: Including: 90° spiral clamps, horizontal spiral clamps, 45° spiral clamps, vertical quick-action clamps, and horizontal push-type quick-action clamps; Purpose: Components used to clamp the workpiece onto the platform or base elements to ensure it does not shift during machining. 6) Locking components: Including: quick-locking pins, countersunk quick-locking pins, countersunk locking pins, handle quick-locking pins, locating pins, magnetic connection locking pins, hex socket locking pins, hex head locking pins, and magnetic pins; Purpose: Components used for positioning and locking between elements. 7) Assembly components: Including: 90 degree clamping swing sleeves, 45 degree clamping swing sleeves, parallel clamping swing sleeves, vertical clamping swing sleeves, standard support legs, swivel caster support legs with brakes, fixed support legs, frame-structure support bases, hydraulic lifting support bases, and support rails; Purpose: Components acting on the connection or support between elements and other parts. 8) Other components: Including: retaining rings, grounding devices, spiral clamps, pipe clamps, lifting rings, cross-slot pressure pads, two-point clamping bridges, three-point clamping bridges, multi-purpose support templates, platform guard plates, and tool trolleys; Purpose: Auxiliary components for the assembly of tooling elements. 9) Assembly tools: Including hex keys, oil stones, magnetic pliers, and other assembly tools.

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