German otto bitzer workpiece fixtures, otto bitzer models, otto bitzer prices

otto bitzer workpiece fixtures are devices that hold objects for manipulation. They can grip and release objects while performing certain actions. Motion devices often mimic human movements; in the case of grippers, they mimic finger movements. The "fingers" themselves are not part of the gripper; they are specialized custom tools for holding objects, known as "jaws." Two main gripping actions: External gripping: This is the most common method for holding objects. It is the simplest and requires the shortest stroke length. When the gripper jaws close, the clamping force applied by the gripper holds the object. Internal gripping: In some applications, due to the geometry of the object or the need to access the exterior of the object, it is necessary to grip the object from the center. In this case, the gripper holds the object through expansion force.

otto bitzer workpiece fixture classification

Fixture types can be classified by usage characteristics as follows: (1) Universal general-purpose fixtures. Examples include machine vises, chucks, suction cups, indexing heads, and rotary tables. They 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. Most have become standard accessories for machine tools. (2) Special-purpose fixtures. These are specifically designed and manufactured for the clamping needs of a specific product part at a certain process step. They serve a single purpose with strong specificity and are generally designed by the product manufacturer. Common examples include lathe fixtures, milling fixtures, drill jigs (machine tools used to guide drills or reamers on workpieces), boring jigs (machine tools used to guide boring bars on workpieces), and pallet fixtures (movable fixtures used on automated lines for modular machine tools). (3) Adjustable fixtures. Special-purpose fixtures whose components can be replaced or adjusted. (4) Modular fixtures. Fixtures composed of standardized components of different shapes, specifications, and uses. They are suitable for new product prototyping, single-piece and small-batch production with frequent product changes, and temporary tasks. In addition to vises, chucks, indexing heads, and rotary tables, another common type is the tool holder. Generally speaking, when the term "tool fixture" appears, it mostly refers to the tool holder.

otto bitzer workpiece fixture principles and features

The structure of a flat vacuum suction cup consists of the suction cup and the suction cup collar. The flat vacuum suction cup first connects the vacuum suction cup 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, securing the object for lifting and transportation. 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 task of lifting and transporting heavy loads. 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. For this reason, it stands out significantly among many pneumatic components. 2) Ease of use. Regardless of the material of the object being sucked, as long as it can be sealed without air leakage, it can be used. Electromagnetic chucks cannot do this; they can only be used on steel. Plates or objects made of other materials cannot be attracted. 3) No pollution. Vacuum suction cups are particularly environmentally friendly. They do not pollute the environment and do not generate light, heat, or electromagnetic fields. 4) No damage to workpieces. Since vacuum suction cups are made of rubber, picking up or placing workpieces does not cause any damage to them. Hook-type and cable-type lifting devices cannot guarantee this. In some industries, where surface requirements for workpieces are particularly strict, only vacuum suction cups can be used.

otto bitzer workpiece fixture selection

When selecting pneumatic grippers and jaw designs, these are the main factors to consider: 1) Part shape, orientation, and dimensional differences: If the object has two opposing flat surfaces, a parallel two-jaw gripper can be used to address dimensional deviations. For cylindrical objects, a two-jaw gripper can also be used for gripping. Note that containment or enveloping gripping requires less force. 2) Part weight: The gripping force must be sufficient to hold the object securely while performing the required operations. The type of jaw design must be considered when calculating the required gripping force. Please note that safety factors should be considered when selecting the required force, and air pressure is also a factor to note. 3) Accessibility: This relates both to the operation being performed and to the spatial size of the gripper jaws. If work needs to be done on the exterior of the object, internal gripping is required. Scissor-style grippers are usually cheaper but require more space for jaw movement. 4) Environment: Grippers used in harsh environments or cleanrooms require appropriate designs. 5) Object retention: When air pressure is no longer supplied, the gripper will release its hold on the object, causing it to drop. For such applications, spring-assisted grippers can be used.

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