chemtec fixtures, German chemtec models, chemtec prices

chemtec fixtures use hydraulic components to replace mechanical parts, achieving automatic positioning, support, and clamping of workpieces through hydraulic control. They offer advantages such as high clamping force, reliable clamping, stable operation, and ease of use, and are currently widely used in scenarios such as CNC machine tools, machining centers, and automated production lines. By assembling selected hydraulic components with the designed mechanical parts, the required fixture can be obtained. Hydraulic fixtures ensure accurate positioning and secure clamping of the workpiece at the specified position, and can reduce vibration and deformation during machining through floating supports. They can also utilize automatic control to press down and lift the pressure plates, clearing the clamping position during machining. Hydraulic fixtures can withstand large cutting forces during rough machining, ensure accurate positioning during precision machining, and perform support, clamping, and quick release tasks that manual fixtures cannot accomplish.

chemtec 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 and firmly hold the object 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 it during pick-and-place operations. When the gripper holds a workpiece, there must be certain force constraints and shape constraints to ensure that the clamped workpiece is fully released during movement, dwelling, and loading. In addition, it must ensure that the geometric deviation of the workpiece holding posture remains within the specified tolerance zone.

chemtec fixture features

1) Suction cup holding force: Electrically controlled powerful suction cups have extremely strong holding force, up to 16kg/cm², with uniform and adjustable magnetic distribution, suitable for various heavy-duty machining, rough machining, and precision machining; ordinary powerful suction cups have weaker and unevenly distributed holding force, unable to meet the requirements of heavy-duty machining operations. 2) Machining accuracy: The holding force of electrically controlled powerful suction cups does not require a continuous power supply to maintain, generating no heat during continuous operation, avoiding thermal deformation of the workpiece. Meanwhile, the strong and uniform surface suction ensures the highest machining accuracy even if the workpiece extends beyond the table surface; whereas ordinary electromagnetic suction cups require a continuous current supply, generating heat after a period of operation, which not only causes thermal deformation of the workpiece but also reduces the magnetic force of the suction cup, failing to guarantee machining accuracy. 3) Performance: Electrically controlled powerful suction cups can be used continuously, even for more than 20 hours per day, without any faults or need for maintenance; ordinary permanent magnet suction cups experience a decline in holding force after about half a year of use, while electromagnetic suction cups can only operate for a few hours a day, and the equipment is prone to failures, requiring frequent replacement and repair of internal components. 4) Operational efficiency: Using ordinary powerful suction cups requires significant time for workpiece adjustment, accounting for 40%-50% of the entire machining process. Moreover, clamping and positioning are prone to obvious errors, resulting in a high scrap rate and very low efficiency; electrically controlled powerful suction cups feature automatic auxiliary positioning, completing workpiece clamping or release in just 0.3 seconds with the simple press of a button, significantly improving production efficiency.

chemtec fixture selection and usage

With the continuous development of China's industry, electromagnetic chucks are being used more and more widely in industrial production. The most important aspect of an electromagnetic chuck is its parameters, and among the performance parameters of an electromagnetic chuck, 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 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. Rectangular electromagnetic chucks have lifting screw holes on both sides; during installation, T-shaped screws can be screwed in for lifting, and 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 precision grind the upper surface of the chuck once to ensure the parallelism between the upper surface and the bottom surface. When adsorbing workpieces, as long as two adjacent magnetic poles are bridged, sufficient positioning suction force can be obtained for grinding operations. Magnetization and demagnetization of the workpiece can be achieved via the machine tool buttons.

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