Industry news
1. Three-jaw chuck
Rotate the bevel gear with a voltaic wrench, the bevel gear drives the plane rectangular thread, and then drives the three claws to move in the center. Because the pitches of the plane rectangular threads are equal, the three claws move at the same distance and have the effect of automatic centering. The three-jaw chuck is composed of a large bevel gear, three small bevel gears and three jaws. The three small bevel gears mesh with the big bevel gear, the back of the big bevel gear has a plane thread structure, and the three jaws are installed on the plane thread in equal parts. When the small bevel gear is pulled with a wrench, the big bevel gear rotates, and the plane thread on its back causes the three jaws to approach or withdraw to the middle at the same time.
2. Four-jaw chuck
Four screws are used to drive the four jaws respectively, so the common four-jaw chuck has no automatic centering effect. However, various rectangular and irregular workpieces can be clamped by adjusting the position of the four jaws.
3. Soft jaw chuck
When turning a large batch of workpieces, in order to improve the positioning accuracy of the workpiece during processing and save the auxiliary time when the workpiece is installed, a soft jaw chuck can be used. In order to change the diameter and shape of the arc of the claw surface at any time according to actual needs, the quenched claws of the three-jaw chuck are replaced with low-carbon steel, copper or aluminum alloy claws. If the chuck jaws are two-part, the jaws can be replaced with soft metal; if the jaws are integrated, a soft metal block can be fixed on the jaws. After the jaws of the soft jaw chuck are processed, the positioning accuracy of the workpiece can be improved. For the new three-jaw chuck, the positioning accuracy of the workpiece after installation is less than 0.01mm. For example, the plane thread of the three-jaw chuck is severely worn and has poor accuracy. After light machining with soft jaws, the positioning accuracy of the workpiece after installation can still be maintained within 0.05mm. The soft-jaw chuck clamps the machined surface or soft metal, which is not easy to pinch the surface. For thin-walled workpieces, fan-shaped claws can be used to enlarge the contact area with the workpiece and reduce the deformation of the workpiece. The soft jaw chuck is suitable for the machined surface as the positioning precision reference, and semi-finishing and finishing turning of workpieces in mass production. Correct adjustment and turning of the soft-jaw chuck is the primary condition to ensure the accuracy of the soft-jaw chuck. The bottom surface of the soft jaw and the positioning table should be slidably fitted with the jaw base and positioned correctly. The part of the soft jaw used to clamp the workpiece is longer (10-15) mm than the hard jaw to prepare for multiple turning, and must be assembled in matching numbers; the diameter of the turned soft jaw is the same as the diameter of the workpiece to be clamped, larger or smaller, Neither can guarantee the clamping accuracy. Generally, the turning diameter of the jaw is about 0.2mm larger than the diameter of the workpiece, that is, the diameter of the workpiece to be stuck, which should be controlled within a certain tolerance range; when turning soft jaws, in order to eliminate the gap, it must be installed in the jaw or outside the jaw. Cylinders or rings with appropriate diameters, where they are installed on the soft jaws, should be in the same direction as the workpiece clamping direction, otherwise the positioning accuracy of the workpiece cannot be guaranteed. When the workpiece is clamped, the cylinder should be clamped inside the chuck jaw to turn the soft jaw surface. When the workpiece is tightened, the ring should be installed outside the chuck jaw to turn the outside of the soft jaw.
4. Electric chuck
An electric chuck device relates to a type of universal fixture for clamping workpieces which is widely used in the mechanical field. It is composed of a clamping function unit of an electric chuck device, a power function unit of an electric chuck device, an electromagnetic friction clutch assembly, a chuck body shell and an electromagnetic brake assembly. When the electromagnetic brake assembly is energized, the clamping function unit of the electric chuck device is integrated with the bedside box and does not rotate; the electromagnetic friction clutch assembly is energized, and the power function unit of the electric chuck device transmits the rotating motion to the clamping or loosening of the jaws. Open the workpiece. During the machining process, only the clamping function unit of the electric chuck device rotates with the main shaft, and the power function unit of the electric chuck device does not rotate with the main shaft. Compared with the prior art, the invention effectively reduces the number of parts rotating with the main shaft and the quality of rotation, is beneficial to improve the dynamic balance quality of the main shaft, is easy to serialize and standardize design and manufacture, has a simple and compact device structure, and is easy to install and maintain.
5. Pneumatic chuck
Its performance advantages are mainly manifested: Compared with manual chucks, pneumatic chucks can be automatically centered and clamped in an instant by pressing a button, and the clamping force is stable and adjustable. In addition to improving work efficiency, it can also One person can operate multiple CNC machine tools, which greatly reduces the cost of human resources and at the same time reduces the investment in fixed equipment. It is widely used in batch machining enterprises. In addition, non-standard pneumatic clamps for special-shaped parts that are difficult to clamp (such as valves, pumps, etc.) can be customized according to customer needs. The use of pneumatic chucks can greatly reduce the labor intensity of workers while improving production efficiency, making your company a model of compassionate workers, and it can also add new highlights to the recruitment of corporate personnel and the improvement of product market competitiveness. It can improve the grade of equipment and enhance the overall image of the enterprise. It is a choice for the equipment improvement of very strong mechanical processing enterprises. The whole set of pneumatic chuck is configured with chuck, pneumatic gyrator and electric control part. No tie rod is required for installation, which changes the traditional pneumatic and hydraulic chuck structure and troublesome installation. (Generally, professional installation takes 2 working days) , The user can complete the whole installation process in about 1 hour by reading the installation instructions and schematic diagrams, which can save the high installation fee and production cost for the majority of users, and also improve the operation efficiency of the machine tool for users. Compared with hydraulic chucks, pneumatic chucks are simple in structure, low in cost and failure rate, and are environmentally friendly and have no pollution. They mainly use air as the power source. Only one 1 cubic air pump can operate 8-10 pneumatic chucks at the same time. Moreover, there is no air leakage when the pneumatic gyrator is partially clamped and loosened, which can save air source and reduce the use and maintenance costs (such as hydraulic oil) incurred by using hydraulic chucks, so that your investment can be achieved in one step. Very economical and practical pneumatic chuck. The independent innovation and unique design of the pneumatic chuck improve the shortcomings of the traditional pneumatic chuck that the clamping force is small and the force is unstable. Stable and reliable, adjustable size, customers can choose comb tooth soft claws, hard claws, customized special-shaped claws, etc., and can adjust the position of the comb teeth according to the size of the workpiece to process various parts. The pneumatic chuck adopts a fully enclosed structure, the parts are carefully selected, all mating surfaces are dust-proof, and the unique material selection and heat treatment process greatly exceed the service life of the manual chuck (the service life of the manual chuck is generally half a year to 1 year), Biute pneumatic chuck is properly maintained and used, and the service life can reach more than 3 years, and can maintain the factory precision for a long time, so that your investment can be maintained for a long time. The repeated clamping accuracy is generally 0.01-0.03mm. The pneumatic chuck produces force through the conversion of air pressure and the angle of the inclined wedge. In addition to the large clamping force, it also has a strong self-locking function. It has passed the inspection and test of the national agency. The 3Mpa hydraulic test chuck structure is not deformed, and all parts are not deformed. It is damaged, and even when the air source is disconnected, the workpiece can still be firmly clamped for cutting, which solves the safety and reliability aspects for customers.
Rui Card (Changzhou) Technology Co., Ltd.