German Boellhoff workholding fixtures Boellhoff models Boellhoff pricing

Boellhoff workholding fixtures are electromagnetic chucks that secure workpieces via suction generated by the chuck body when the electromagnetic coil is energized. An electromagnetic chuck consists of an iron core, coil, faceplate, and bracket. The electromagnet, formed by the coil and iron core, is the main component of the electromagnetic chuck. Electromagnetic chucks vary depending on design methods or materials used and are continuously developing and improving. Initially, electromagnetic chucks were used on grinding machines to replace clamping plates and bolts for securing workpieces to be ground. Such electromagnetic chucks are relatively simple and can only secure flat workpieces. This is the traditional electromagnetic chuck, which has significant limitations in its application. With industrial development, enterprise demand for electromagnetic tools has grown, and requirements have become higher, prompting a series of improvements to electromagnetic chucks to meet production needs.

Boellhoff workholding fixture types

1) Standard rectangular electromagnetic chuck Application: Rectangular table surface grinding machines. 2) High-power electromagnetic chuck Application: Milling machines, planers, machining centers. 3) Fine-pole electromagnetic chuck Application: Rectangular table surface grinding machines, milling machines. 4) Multi-function high-power electromagnetic chuck Application: Rectangular table surface grinding machines. 5) Rotary electromagnetic chuck Application: Various surface grinding machines. 6) Special electromagnetic chuck for tool grinding Application: Tool grinding machines. 7) Circular electromagnetic chuck (concentric type) Application: Circular table surface grinding machines. 8) Circular electromagnetic chuck (radial pole type) Application: Circular table surface grinding machines. 9) Circular electromagnetic chuck (plum blossom pole type) Application: Circular table surface grinding machines. An electromagnetic chuck is an electromagnetic fixture that secures workpieces via suction generated by the chuck body when the electromagnetic coil is energized. An electromagnetic chuck consists of an iron core, coil, faceplate, and bracket. The electromagnet, formed by the coil and iron core, is the main component of the electromagnetic chuck.

Boellhoff workholding fixture principles and features

The structure of a flat vacuum suction cup consists of the suction cup and the suction cup holder. First, the flat vacuum suction cup is connected to vacuum equipment, such as a vacuum generator, via a pipe. It then contacts the object to be lifted, such as glass or paper. The vacuum equipment is activated to create negative pressure inside the suction cup, securely holding the object for transport. When the object reaches its destination, air is gently introduced into the vacuum suction cup, changing the internal pressure from negative to zero or slightly positive. The vacuum suction cup then releases the object, completing the lifting and transport task. 1) Prone to wear. As it is generally made of rubber and directly contacts objects, it suffers severe wear and rapid degradation. It is a pneumatic wearable part. This is why it stands out significantly among many pneumatic components. 2) Easy to use. Regardless of the material of the object being sucked, it can be used as long as a seal is formed without air leakage. Electromagnetic chucks cannot do this; they can only be used on steel. Plates or objects made of other materials cannot be held. 3) No pollution. Vacuum suction cups are particularly environmentally friendly, do not pollute the environment, and produce no light, heat, or electromagnetic emissions. 4) Does not damage workpieces. Since vacuum suction cups are made of rubber, picking up or placing workpieces causes no damage. Hook-type and steel cable lifting gear cannot achieve this. In some industries, where surface requirements for workpieces are particularly strict, only vacuum suction cups can be used.

Boellhoff workholding fixture maintenance

1) Before use, check whether the limit dimensions remain in the correct position. 2) If stop pins are excessively worn, they can be polished and repaired; if baffles, pins, or locating taper pins are excessively worn, they can be reassembled, offsetting the worn areas for continued use. 3) Apply anti-rust oil after use. Regular long-term lubrication maintains the life of synchronous fixtures. Incorrect lubrication leads to reduced clamping force, poor accuracy, wear, and seizing, so proper lubrication is essential. After machining, always clean the synchronous fixture body and slide ways with an air gun or similar tool. During cleaning, remove the dust cover fixing screws and take off the dust cover. Extend the main jaws to their widest position to easily clean chips accumulated inside the fixture. To prevent reduced clamping force due to rust, use anti-rust cutting oil. Completely disassemble and clean the synchronous fixture every six months (at least every two months when machining cast iron or copper). Check parts for damage or wear, and replace with new items immediately if severe. Lubricate thoroughly before assembly.

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