What is a sucker Suction cup knowledge broadcast

Suckers, a kind of tool in machining, mainly include magnetic suction cups and vacuum suction cups.

The chuck is divided into an electromagnetic chuck and a permanent magnetic chuck. The electromagnetic chuck is composed of a cast steel shell and a coil, and generates a magnetic field by contacting a direct current to hold the workpiece tightly. The permanent magnet chuck body is equipped with a permanent magnet. When the magnet is aligned with the permeable magnet on the chuck panel, the magnetic field lines pass through the workpiece to form a closed loop to attract the workpiece; when the magnet rotates the handle, the magnetic field lines intersect with the permeable magnet and no longer pass through the workpiece. The workpiece can be unloaded.

Vacuum chuck, also called vacuum spreader, is a pneumatic component that uses the difference between internal and external pressure generated by vacuum to act. It uses the principle of negative pressure to suck the air between the suction cup and the workpiece through a vacuum pump to form a large negative pressure to adsorb the workpiece.

Vacuum chuck, also known as suction cup or vacuum spreader, refers to a temporarily sealed closed space when it comes in contact with the sucked object. After sucking or thin air in the sealed space, it can quickly make the internal and external pressures have a large pressure. Pneumatic components that make it work poorly.

The raw materials for vacuuming generally consist of various rubbers, plastics, metals, etc. According to the way of enclosed space, it can be divided into pneumatic suction cup and manual suction cup. Grabbing products with vacuum suction cups is one of the lowest cost methods.

For different types of vacuum suction cups, rubber suction cups can work at high temperatures. Silicone rubber suction cups are very suitable for absorbing products with rough surfaces, while suction cups made of polyurethane can be used well. In addition, in actual production, if necessary, Chuck can have oil resistance, then you can consider choosing polyurethane prepolymer, butyl rubber or vinyl polymer materials to make the suction cup.

The vacuum suction cups we often see are NR, NBR, SI, FKM, PUR, NE, EPDM, SE and other rubbers. Suppose we classify according to the shape, it can be divided into Pingchak ellipse, corrugated jacket, special-shaped jacket, among which there are secondary corrugated corrugated jacket, tertiary corrugated corrugated jacket and multiple corrugated corrugated jacket sucker.

Generally speaking, in order to avoid scratches on the product surface, it is best to use silicone rubber NBR rubber with suction cups and bellows. If the EOAT uses a vacuum suction cup (without pliers), it should be noted that the movement speed of the manipulator cannot be too fast, otherwise a tangential force will be generated on the suction cup, making the product easy to fall during rapid changes. In some cases, clamps can be used to ensure the safe transportation of products.

In view of the adhesive force that the product may exhibit on the mold, air clamps can generally be used to solve this problem. If the product surface area is too small or the product weight is too large, so that the product cannot be used with vacuum suction cups, the same method can also be used to handle it with clamps.

If the product has strict requirements on appearance, the clamped part cannot be the surface. After confirming that the gripper may be a sucker holding the product firmly, the sensor will send a signal to the manipulator so that it can proceed to the next step.