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bruegger fixtures are electromagnetic fixtures that secure workpieces using the suction force 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 due to differences in design methods or materials used, and they continue to develop and improve. Electromagnetic chucks were initially 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, the demand for electromagnetic tools from enterprises has grown, and the requirements have become higher, prompting a series of improvements to electromagnetic chucks to meet production needs.

bruegger fixture requirements

Whether clamping or suction-type, robot end-effectors must also have the repeatability required for the operation. The structure of the robot end-effector should be as simple and compact as possible, with light weight, to reduce the load on the arm. Dedicated rather than general-purpose robot end-effectors have a simpler structure, high work efficiency, and can perform various operations. In contrast, "universal" end-effectors may have disadvantages such as complex structures and high costs. Therefore, it is recommended to design and use serialized, standardized, dedicated robot end-effectors that can be quickly replaced. If an object has two opposing flat surfaces, a double-jaw parallel gripper can be used to address dimensional deviation issues. For cylindrical objects, a double-jaw gripper can also be used for clamping. Note that containment or enveloping gripping requires less force.

bruegger fixture principles and features

The structure of a flat vacuum suction cup consists of the suction cup and the suction cup collar. First, the flat vacuum suction cup is connected via a pipe to vacuum equipment, such as a vacuum generator, and then brought into contact with the object to be lifted, such as glass or paper. The vacuum equipment is started to create negative pressure inside the suction cup, securely holding the object so that transport can begin. When the object reaches its destination, air is smoothly 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) High wear. Since it is generally made of rubber and directly contacts objects, it suffers from severe wear and rapid degradation. It is a pneumatic wearable part. Precisely because of this, 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 it seals and does not leak air. 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. Because vacuum suction cups are made of rubber, picking up or placing workpieces causes no damage. Hook-type and cable-type lifting gear cannot achieve this. In some industries, where surface requirements for workpieces are particularly strict, only vacuum suction cups can be used.

bruegger fixture usage

With the continuous development of China's industry, electromagnetic chucks are increasingly widely used in industrial production. The most important aspect of an electromagnetic chuck is its parameters; among the performance parameters, the lifting capacity and its working class are the most critical. The so-called lifting capacity of an electromagnetic chuck refers to the maximum weight of the load allowed to be lifted under specified working conditions, also known as the rated lifting capacity. Generally, for cranes equipped with an electromagnetic chuck, the lifting capacity should also include the weight of the electromagnetic chuck itself. Rectangular electromagnetic chucks have lifting threaded holes on both sides. During installation, T-shaped screws can be screwed in for lifting. They are fixed to the workbench using T-shaped blocks and screws. Connect the DC power supply and ground wire from the machine tool, then perform a precision grind on the upper surface of the chuck to ensure the parallelism between the upper surface and the bottom surface. When holding workpieces, sufficient positioning and holding force can be obtained by bridging two adjacent magnetic poles, allowing grinding operations to proceed. Magnetization and demagnetization of the workpiece can be controlled via the machine tool buttons. Before use, the surface of the electromagnetic chuck should be wiped clean to avoid scratches. Severe impacts are prohibited to prevent affecting accuracy. After use, it should be cleaned and coated with anti-rust oil to prevent corrosion. When using the electromagnetic chuck independently, a ground wire must be connected to prevent electric shock due to leakage.

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