German IPR workholding fixtures IPR model IPR price

IPR workholding fixture is a machine tool accessory product manufactured based on the electromagnetic principle. It generates magnetic force by energizing internal coils, firmly holding workpieces in contact with the surface of a magnetically conductive panel. Demagnetization and workpiece removal are achieved by de-energizing the coils to eliminate the magnetic force. Main applications include workpiece fixation during machining of ferrous workpieces on grinding machines, electromagnetic knife grinders, gantry milling machines, and gantry planers. Lifting threaded holes are provided on both sides of the rectangular electromagnetic chuck; insert T-shaped screws for lifting during installation. Secure it to the workbench using T-shaped blocks and screws. Connect the DC power supply and ground wire from the machine tool, then precision grind the upper surface of the chuck once to ensure parallelism between the upper and bottom surfaces. When holding workpieces, sufficient positioning suction force is obtained by bridging two adjacent magnetic poles, allowing grinding operations. Magnetization and demagnetization of the workpiece can be controlled via machine tool buttons.

IPR workholding fixture structure

1) Locating elements: These contact the locating datum of the workpiece to determine its correct position within the fixture, thereby ensuring the correct relative position of the workpiece with respect to the tool and machine tool motion during machining. 2) Clamping devices: Used to clamp the workpiece, keeping it in the established position within the fixture during cutting. As shown in Figure 6-1, these include 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: The base component used to connect or fix all 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 defined position relative to the machine tool. 6) Other elements and devices: Depending on machining requirements, some fixtures require indexing mechanisms, and milling machine fixtures may also require locating keys, etc. Not all of these components are indispensable for every type of machine tool fixture. However, any fixture must have locating elements and clamping devices, as they are key to ensuring workpiece machining accuracy, with the aim of accurately positioning and securely clamping the workpiece.

IPR workholding 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 pins on the spiral clamping mechanism and the grooves on the pressure plate of the spiral clamping mechanism, and clamp it with the spiral clamping mechanism; 4) Perform three-side 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 springs, the positioning conical pins on it disengage from the welded assembly, then push out the pressure plate to disengage one end from the spiral clamping mechanism stud, rotate the pressure plate to the side of the welded assembly, then remove the welded assembly.

IPR workholding fixture maintenance

When using vacuum suction cups (without grippers), note that the manipulator's movement speed must not be too high. Otherwise, shear forces will act on the suction cup, causing the product to easily drop during rapid twisting. In some cases, a gripper can be used to ensure safe transport of the product. Considering that the product may stick to the mold, an air gripper is usually installed to solve this problem. If the product's surface area is too small or the product is too heavy for vacuum suction cups, the issue can also be resolved by using grippers. If the product has strict appearance requirements, the clamped area must not be the outer surface. To address this, a sensor circuit can be installed. Once the gripper or suction cup has securely grasped the product, the sensor sends a signal to the manipulator, allowing it to proceed to the next step. In cases where the manipulator's motion capability is limited and manual twisting or prying is required to demold the product or move it out of the forming area, a special cylinder capable of independent movement without relying on manipulator operation can be added to improve the situation.

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