German acal workpiece fixtures acal model acal price

acal workpiece fixtures are devices used in the manufacturing process to secure the workpiece in the correct position for machining or inspection, also known as jigs. In a broad sense, any device used to quickly, conveniently, and safely install workpieces during any step of the process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping devices, tool-setting guide elements (to determine the relative position of the tool to the workpiece or guide the tool direction), indexing devices (to allow the workpiece to undergo machining at several stations in a single setup, including rotary indexing devices and linear indexing devices), connecting elements, and fixture bodies (fixture bases). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which 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 workpiece surface 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 located (positioning) and securely clamped (clamping) before machining.

acal workpiece fixture classification

Fixtures can be classified by usage characteristics as follows: (1) Universal general-purpose fixtures. Such as machine vises, chucks, suction cups, dividing heads, and rotary tables, which have high versatility and can adapt well to changes in machining processes and workpieces. Their structures are standardized, and their sizes and specifications are serialized, with most becoming standard accessories for machine tools. (2) Special-purpose fixtures. Designed and manufactured specifically for the clamping needs of certain product parts in specific processes, serving a single purpose with strong specificity, generally designed by the product manufacturer. Common types include lathe fixtures, milling fixtures, drill jigs (machine tool fixtures used to guide tools for drilling or reaming holes in workpieces), boring jigs (machine tool fixtures used to guide boring bars for boring holes in workpieces), and pallet fixtures (movable fixtures used on automated lines for modular machine tools). (3) Adjustable fixtures. Special-purpose fixtures with replaceable or adjustable elements. (4) Modular fixtures. Fixtures composed of standardized elements of different shapes, specifications, and uses, suitable for new product prototyping, single-piece and small-batch production with frequent product changes, and temporary tasks. In addition to vises, chucks, dividing heads, and rotary tables, there is a more common term called tool holder. Generally speaking, when the term tool fixture appears, it mostly refers to the tool holder.

acal workpiece fixture operation

1) Assemble the two engine bushings onto the 1 strut according to the "Strut Welding Assembly" drawing, and place them on the fixture body, position the 1 strut using stop pins and stop plates, clamp the 1 strut with a spiral clamp; simultaneously position the two 4 engine bushings with pins, and clamp them with quick-release spiral clamping devices; 2) After tack welding, release the quick-release spiral clamping devices, pull out the pins, remove for welding; 3) Place the welded assembly back on the fixture body, position the welded assembly using stop pins and stop plates, clamp the welded assembly with a spiral clamp; then place the assembly of the M6 nut and horn bracket onto the welded assembly, position it using the conical pin on the spiral clamping mechanism and the groove on the pressure plate of the spiral clamping mechanism, and clamp it with the spiral clamping mechanism; 4) Perform three-sided welding on the assembly of the M6 nut and horn bracket and the strut, then release all spiral clamps, the pressure plate of the spiral clamping mechanism clamping the M6 nut and horn bracket assembly is lifted by the spring, the positioning conical pin on it disengages from the welded assembly, then push the pressure plate out so that one end disengages from the spiral clamping mechanism stud, rotate the pressure plate to the side of the welded assembly, then remove the welded assembly.

acal workpiece fixture maintenance

1) Check before use whether the limit dimensions are still in the correct position; 2) If the stop pins are worn beyond tolerance, they can be repaired by grinding; if the stop plates, pins, or positioning conical head pins are worn beyond tolerance, they can be reassembled, shifting the worn areas before continued use; 3) Apply anti-rust oil after use.

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