German Woerner Automati workpiece fixture Woerner Automati model Woerner Automati price

Woerner Automati workpiece fixture is a machine tool accessory product manufactured based on the electromagnetic principle. It generates magnetic force by energizing internal coils, tightly 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 the machining of ferrous workpieces on grinding machines, electromagnetic knife grinders, gantry milling machines, and gantry planers. Lifting screw holes are located on both sides of the rectangular electromagnetic chuck; insert T-shaped screws for lifting, and secure 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 holding force is obtained by bridging two adjacent magnetic poles, allowing grinding operations. Magnetization and demagnetization of the workpiece can be controlled via the machine tool buttons.

Woerner Automati workpiece fixture operating principle

The most widely used grippers are pneumatic grippers; it is essentially a cylinder powered by compressed air. When air is supplied, the gripper jaws approach the object and grip it firmly, 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 must be certain force constraints and form constraints, to ensure that during movement, dwelling, and loading of the clamped workpiece, it should be completely released. In addition, it must ensure that the geometric deviation of the workpiece holding posture remains within the specified tolerance zone.

Woerner Automati workpiece fixture features

Workpiece varieties for small-batch, multi-variety production account for approximately 85% of the total number of workpiece types. Modern production requires enterprises to frequently update product varieties to meet market demands and competition. However, general enterprises are still accustomed to extensively using traditional dedicated fixtures. In factories with medium production capacity, there are typically thousands to nearly ten thousand sets of dedicated fixtures. On the other hand, in multi-variety production enterprises, approximately 50~80% of dedicated fixtures need to be updated every 3~4 years, while the actual wear of the fixtures is only about 10~20%. To meet the application of new processing technologies such as CNC machine tools, machining centers, group technology, and Flexible Manufacturing Systems (FMS), machine tool fixtures have the following characteristics: 1) Enable rapid and convenient setup for new product production, shortening production preparation cycles and reducing production costs; 2) Capable of clamping a group of workpieces with similar characteristics; 3) Suitable for high-precision machine tool fixtures for precision machining; 4) Suitable for new types of machine tool fixtures for various modern manufacturing technologies; 5) Adopt efficient clamping devices powered by hydraulic stations, etc., to further reduce labor intensity and improve labor productivity; 6) Improve the standardization level of machine tool fixtures. This is mainly manifested in four aspects: standardization, precision, efficiency, and flexibility.

Woerner Automati workpiece fixture maintenance

When using vacuum suction cups (without clamps), note that the manipulator's movement speed should not be too high; otherwise, shear forces will be generated on the suction cup, causing the product to easily drop during rapid twisting. In some cases, a clamp can be used to ensure safe product transport. Considering that products may stick to the mold, an air clamp is usually installed to solve this problem. When the product surface area is too small or the product is too heavy for vacuum suction cups, clamps can also be used to address this issue. If strict appearance requirements apply, the clamped area must not be the outer surface. To solve this, a sensor circuit can be installed. After confirming that the clamp or suction cup has securely held the product, the sensor sends a signal to the manipulator to proceed with the next operation. In cases where the manipulator's motion capability is limited and manual twisting or prying is required to demold or remove the product from the forming area, a special cylinder capable of independent movement without relying on the manipulator can be added to improve this situation.

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