German norelem workholding fixtures norelem model norelem price

norelem workholding fixtures are devices used in the manufacturing process to secure the workpiece in the correct position for machining or inspection, also known as jigs. Broadly speaking, any device used to quickly, conveniently, and safely install a workpiece 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 in the fixture), clamping devices, tool-setting guide 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 setup, including rotary indexing devices and linear indexing devices), connecting elements, and the fixture body (fixture base). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often referred to simply as fixtures. When machining a workpiece on a machine tool, to ensure that the surface of the workpiece meets the technical requirements specified in the drawing, 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.

norelem workholding fixture types

1) Standard rectangular electromagnetic chuck Application: Surface grinding machines with rectangular tables. 2) High-power electromagnetic chuck Application: Milling machines, planers, machining centers. 3) Fine-pole electromagnetic chuck Application: Surface grinding machines with rectangular tables, milling machines. 4) Multi-function high-power electromagnetic chuck Application: Surface grinding machines with rectangular tables. 5) Rotary electromagnetic chuck Application: Various surface grinding machines. 6) Electromagnetic chuck for knife grinding Application: Knife grinding machines. 7) Circular electromagnetic chuck (concentric type) Application: Surface grinding machines with circular tables. 8) Circular electromagnetic chuck (radial pole type) Application: Surface grinding machines with circular tables. 9) Circular electromagnetic chuck (plum blossom pole type) Application: Surface grinding machines with circular tables. An electromagnetic chuck is an electromagnetic fixture that secures the workpiece using the suction force generated by the chuck body when the electromagnetic coil is energized. The electromagnetic chuck consists of an iron core, coil, faceplate, and bracket. The electromagnet, composed of the coil and iron core, is the main part of the electromagnetic chuck.

norelem workholding fixture features

1) Chuck holding force: The electronically controlled high-power chuck has extremely strong holding force, up to 16kg/cm², with uniform and adjustable magnetic field distribution, suitable for various heavy-duty machining, roughing, and finishing operations; standard high-power chucks have weaker and uneven holding force, unable to meet the requirements of heavy-duty machining. 2) Machining precision: The holding force of the electronically controlled high-power chuck does not require a continuous power supply to maintain, generating no heat during continuous operation, thus avoiding thermal deformation of the workpiece. Meanwhile, the strong and uniform surface suction ensures the highest machining precision even if the workpiece extends beyond the table surface; whereas standard electromagnetic chucks require a continuous current supply, generating heat after a period of operation, which not only causes thermal deformation of the workpiece but also reduces the chuck's magnetic force, failing to guarantee machining precision. 3) Performance: The electronically controlled high-power chuck can be used continuously without any faults or maintenance required, even if operated continuously for more than 20 hours per day; standard permanent magnet chucks experience a decline in holding force after about half a year of use, while electromagnetic chucks can only operate for a few hours a day, are prone to failures, and require frequent replacement and maintenance of internal components. 4) Operational efficiency: Using standard high-power chucks requires significant time for workpiece adjustment, accounting for 40%-50% of the entire machining process, and clamping positioning is prone to obvious errors, resulting in a high scrap rate and very low efficiency; the electronically controlled high-power chuck features automatic auxiliary positioning, allowing workpiece clamping or release to be completed in just 0.3 seconds by simply pressing a button, significantly improving production efficiency.

norelem workholding fixture classification

1) Base components: Such as square, rectangular, and circular base plates, used as fixture tooling tables. The five working faces of the table feature grid-marked holes. The flatness, parallelism, and perpendicularity tolerances of these five faces, as well as the positional accuracy of the holes, are very high, ensuring sufficient precision for positioning on the table and combination 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 angle blocks, L type angle blocks, support angle irons, angle connection blocks, angle gauges, frame support seats, etc.; used for height positioning or platform expansion, and for positioning or clamping other accessories. These are components used to position supports on the platform to ensure the workpiece meets certain height requirements during machining, such as shims, spacer plates, support plates, support blocks, and extension plates, mainly used for support at different heights. 3) Locating components: Including locating squares, locating straight edges, plane squares, V type locators, eccentric circle stops, used for accurate adjustment of positioning location or height. These are components used to precisely locate the workpiece to ensure it meets certain dimensional precision requirements during machining; used to determine the relative position between components, and between components and the workpiece. 4) Adjustment components: Including height adjusters and adjustment shims; Application: Components used to adjust the positional difference and gap between components and the workpiece. 5) Clamping components: Including: 90° spiral clamps, horizontal spiral clamps, 45° spiral clamps, vertical quick-action clamps, horizontal push-type quick-action clamps; Application: Components used to clamp the workpiece onto the platform or base elements to prevent displacement during machining. 6) Locking components: Including: Quick-locking pins, countersunk quick-locking pins, countersunk locking pins, handle quick-locking pins, locating pins, connection lock magnetic pins, hex socket locking pins, hex head locking pins, magnetic pins; Application: Components used for positioning and locking between elements. 7) Assembly components: Including: 90 degree clamping angle brackets, 45 degree clamping angle brackets, parallel clamping angle brackets, vertical clamping angle brackets, standard support legs, swivel caster support legs with brakes, fixed support legs, frame structure support seats, hydraulic lift support seats, support rails; Application: Components used for connection or support between elements and other parts. 8) Other components: Including: Stop 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 protection plates, tool trolleys; Application: Auxiliary components for assembling tooling elements. 9) Assembly tools: Including hex keys, oil stones, magnetic pliers, and other assembly tools.

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