German conzella workpiece fixtures conzella model conzella price

conzella workpiece fixtures refer to devices used in the mechanical manufacturing process to secure the workpiece in the correct position for machining or inspection, also known as jigs. In a broad sense, any device used to quickly, conveniently, and safely install workpieces 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 undergo machining at several stations in a single setup, including rotary indexing devices and linear indexing devices), connecting elements, and fixture bodies (fixture bases). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often simply referred to as fixtures. When machining workpieces on machine tools, to ensure that the surface of the workpiece meets the technical requirements specified in the drawings, such as dimensions, geometric shape, and mutual positional accuracy with other surfaces, the workpiece must be properly located and securely clamped before machining.

conzella workpiece fixture operating principle

The most widely used grippers are pneumatic grippers; they are essentially cylinders powered by compressed air. When air is supplied, the gripper jaws approach the object and firmly grasp it to perform other operations, and when the air direction is reversed, the gripper releases the object. Typical applications include changing the orientation of an object or moving the object in pick-and-place operations. When the gripper holds the workpiece, there should be certain force constraints and form constraints to ensure that the clamped workpiece is completely released during movement, dwelling, and loading. In addition, it should ensure that the geometric deviation of the workpiece holding posture is within the specified tolerance zone.

conzella workpiece fixture classification

1) General-purpose fixtures: General-purpose fixtures are standardized fixtures that can be used to machine different workpieces within a certain range. For example, three-jaw chucks and four-jaw independent chucks on lathes, vises, indexing heads, and rotary tables on milling machines. These fixtures are generally produced by specialized factories and are often provided to users as machine tool accessories. They are characterized by wide adaptability and low production efficiency, mainly suitable for single-piece and small-batch production. 2) Special-purpose fixtures: Special-purpose fixtures are designed specifically for a particular operation on a specific workpiece. They are characterized by compact structure, rapid, convenient, and labor-saving operation, ensuring high machining precision and production efficiency, but have longer design and manufacturing cycles and higher manufacturing costs. When the product changes, the fixture becomes obsolete and is scrapped. They are only suitable for production with fixed products and large batches. 3) Universal adjustable fixtures and group fixtures: Their characteristic is that some components of the fixture can be replaced and some devices adjusted to accommodate the machining of different parts. Fixtures used for group machining of similar parts are called group fixtures. Compared with group fixtures, universal adjustable fixtures have less clearly defined machining objects and a wider scope of application. 4) Modular fixtures: Modular fixtures are assembled from a set of pre-manufactured standard components and parts according to the machining requirements of the part. Manufactured by professional manufacturers, they are characterized by flexibility, strong versatility, short manufacturing cycles, and reusable components, making them particularly suitable for new product prototyping and single-piece or small-batch production. 5) Pallet fixtures: Pallet fixtures are used on automated lines. This type of fixture not only serves to clamp the workpiece but also moves as an integrated unit with the workpiece from one station to the next along the automated line for different machining operations.

conzella workpiece fixture usage

With the continuous development of China's industry, the use of electromagnetic chucks in industrial production is becoming more and more widespread. The most important aspect of an electromagnetic chuck is its parameters, and among the performance parameters of an electromagnetic chuck, the most critical are the lifting capacity and its working class. The so-called lifting capacity of an electromagnetic chuck refers to the maximum weight of objects allowed to be lifted under specified working conditions, or in other words, the rated lifting capacity. Generally, the lifting capacity of a crane equipped with an electromagnetic chuck should also include the weight of the electromagnetic chuck. There are lifting screw holes on both sides of the rectangular electromagnetic chuck. During installation, T-shaped screws can be screwed in for lifting, and T-shaped blocks and screws are used to fix it on the workbench. Connect the DC power supply and ground wire on the machine tool, and then precisely grind the upper plane of the chuck once to ensure the parallelism of the upper plane to the bottom plane. When adsorbing the workpiece, as long as two adjacent magnetic poles are bridged, sufficient positioning suction force can be obtained, allowing grinding processing to proceed. Through the machine tool buttons, magnetization and demagnetization of the workpiece can be achieved. Before using the electromagnetic chuck, the surface should be wiped clean to avoid scratches. Severe impacts are not allowed to avoid affecting precision. After use, it should be wiped clean and coated with anti-rust oil to prevent corrosion. When using the electromagnetic chuck alone, there should be a ground wire to avoid electric shock injuries.

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