The power chuck is a key component of the machine tool. It is used to clamp the workpiece and drive the workpiece to rotate at high speed to achieve the purpose of surface processing. Existing power chucks are all powered by pneumatics to drive the jaws to clamp or loosen the workpiece. The power chuck structure includes a chuck housing, bottom covers and movable jaw bottom covers respectively located at both ends of the chuck housing, jaws installed on the movable jaw bottom cover, a cylinder bottom cover and a piston in the chuck housing. The piston divides the space between the bottom covers into one and two cylinders, which are connected to the first and second air inlet pipes respectively. During operation, the jaws can be opened or clamped by controlling the air inlets of the first and second air inlet pipes. The clamping force of the jaws is directly related to the air pressure. Although the clamping force of the jaws can be increased by changing the inclination angle of the piston wedge, this can only be achieved by increasing the stroke of the piston. Due to the limitation of the internal space of the chuck, the air pressure of the air inlet pipe can only be increased and a more powerful air compressor can be used, resulting in an improvement in the overall sealing level and cost. Read More »

Power chuck is a fixture used to clamp workpieces in the field of machining, including hollow power chucks and medium-solid power chucks. There is a through hole in the middle of the hollow power chuck, and the matching power source such as a hydraulic cylinder is also hollow. The workpiece can pass through the front end of the hollow power chuck, while the middle part of the medium-solid power chuck and its matching cylinder are solid and are mainly used for processing disc-type workpieces. The medium-solid power chuck is connected to the oil cylinder installed at the rear end of the machine tool's rotating shaft through a tie rod. During the workpiece cutting process, the medium-solid power chuck, the tie rod and the power source rotate at high speed together with the machine spindle. Because the existing medium-solid power chuck is large in size, heavy in mass, and has large inertia when running at high speed, it increases the load on the machine tool spindle, resulting in poor operating stability of the machine tool spindle. In addition, existing power chucks also have problems such as high friction on the mating surface, low mating accuracy, no dust-proof function, and inconvenient assembly. In view of the above shortcomings in the prior art, technicians provide a method Read More »

Installation instructions for pneumatic chuck: 1. Take out the connecting sleeve, screw on the screw, and connect it to the tail of the spindle. Use a dial indicator to correct the outer circle and end face runout of the connecting sleeve to control it within 0.05 mm, and tighten the screws. 2. Take out the chuck, wipe it clean with a rag, and use a caliper to measure whether the lathe flange size is consistent with the chuck connection size. If not, complete the flange to the chuck size. 3. Take out the spiral air duct, set the decorative hoop, and install the air duct on the ventilation joint of the chuck. Then use a vise to clamp the clamp and do not damage the air pipe during installation. 4. Use the capsule to wrap the trachea in sections to ensure smoothness, and then mark No. 1 and No. 2 at the end of the trachea. Then use a thin wire to pass the air pipe through the lathe spindle, so that the air pipe passes through the spindle smoothly, and the support chuck moves backward synchronously and is gently buckled on the flange. 5. Take out the screws, fix the chuck on the flange, and measure the cylinder runout ≦0.05. 6. Tighten the air pipe and cut off the excess at the end. Read More »

From May 6th to 8th, CME Shanghai International Machine Tool Exhibition, Changzhou Bidefu Booth No. 5B01-1, we sincerely invite you to visit and give guidance. Read More »

Hydraulic chucks are widely used in CNC machine tools. If they are used for a long time, they will not be clamped tightly. In order to ensure that the chuck still has good accuracy in long-term use, lubrication is very important. Incorrect or inappropriate lubrication will cause problems such as: abnormal function at low pressure, weakening of clamping force, and poor clamping accuracy. Hydraulic chucks wear and seize abnormally, so it is necessary to lubricate the chuck correctly. Use chuck lubricant, and be sure to use an air gun or similar tool to clean the chuck body and slide surface after work. Using cutting oil with anti-rust effect can prevent rust inside the chuck. If rust occurs, the clamping force will be reduced, so special attention must be paid. The hydraulic chuck chuck must be removed and cleaned every six months, but if cutting cast iron, it must be cleaned once or more every two months. Check all parts for cracks and wear. After the inspection is completed, oil must be supplied before assembly. 1. Do a good job of smoothing Read More »

The operation of CNC mechanical equipment is inseparable from the chuck, and the pneumatic chuck can ensure the accuracy of the lathe equipment. It has the advantages of simple structure and labor-saving installation. So how should the pneumatic chuck be installed? What are its advantages compared to ordinary chucks? 1. Advantages and characteristics of pneumatic chuck 1. Compared with ordinary chucks, the working efficiency of pneumatic chucks will be greatly improved, such as in clamping. And the practical lifespan will be much longer in comparison. 2. The structure of the pneumatic chuck is very simple and there are no complicated parts and components, so the installation is very convenient and labor-saving, and it is not easy to cause mistakes. 3. In terms of consumables and energy, it can be called no consumption. It is also environmentally friendly and has no pollution, which is a practical and superb advantage today when environmental pollution is increasing day by day. 4. In the machinery industry, everyone knows that safety is the most important thing. Therefore, pneumatic chucks undergo strict factory testing, pressure testing, and error testing. Read More »

The rapid development of machinery manufacturing industries such as hydraulic clamps is due to the promotion of rapid economic development, and the rapid development of brokerage has promoted the rapid development of the machinery manufacturing industry. Then, it has further enhanced the importance of CNC lathes! CNC equipment particularly relies on night-pressure fixtures and pneumatic chuck products to clamp workpieces to ensure the accuracy of turning out equipment. The jaws of the chuck in the hydraulic clamp must be manufactured through a special process to ensure the quality of the chuck and the normal operation of the CNC equipment. Chucks are generally divided into four-claw, six-claw, eight-claw and twelve-claw. The pneumatic chuck we produce can increase or decrease the pressure according to the work requirements when the CNC lathe is working, so as to assist the CNC lathe to turn out better and more beautiful craft parts. Today, when hydraulic clamps are widely used in CNC lathes, we can see the rapid progress of the machinery manufacturing industry and the technical difficulties being overcome one by one. This is inseparable from a good type of workpiece and excellent quality. Read More »