|Material:||Caston Iron||Type:||Three Jaws|
4 jaw self centering chuck,
3 jaw self centering chuck
ISO 3 Jaw Type Self Centering Welding Positioner Chuck High Performance
The three-jaw chuck is composed of a chuck body, a movable jaw and a jaw driving mechanism. Under the three claw guides on the three-jaw chuck, there are threads that mesh with the flat threads on the back of the bevel gear. When the small bevel gear is rotated through a square hole with a wrench, the disc gear rotates, and the back plane threads are simultaneously Drive the three claws toward or out of the center to clamp workpieces of different diameters. It is used to replace three anti-jaws on three jaws to install workpieces with larger diameters. The self-centering accuracy of the three-jaw chuck is 0.05-0.15mm. The accuracy of machining a workpiece with a three-jaw chuck is affected by the accuracy of the chuck manufacturing and its wear after use.
Chucks are divided into manual chucks and power chucks according to the power used to drive the claws.
Manual card: It is a universal accessory. The commonly used three-jaw chuck with automatic centering and the four-jaw chuck with each jaw can be moved separately. The three-jaw chuck is driven by a small bevel gear and a large bevel gear. The back of the large bevel gear has an Archimedes spiral groove, which meshes with three claws. Therefore, turning the small bevel gear with a wrench can move the three claws in the radial direction at the same time, achieving automatic centering and clamping, which is suitable for clamping round, regular triangle or regular hexagon workpieces.
Internal Range B
|WP200||200kg||30kg||ɸ 110-210mm||ɸ 20-130mm|
|WP300||250kg||120kg||ɸ 170-300mm||ɸ 20-190mm|
|WP400||350kg||240kg||ɸ 250-400mm||ɸ 120-250mm|
|WP500||800kg||600kg||ɸ 360-500mm||ɸ 200-340mm|
|WP600||1200kg||1000kg||ɸ 400-620mm||ɸ 150-410mm|
|WP750||1400kg||1000kg||ɸ 550-800mm||ɸ 380-580mm|
The number of chuck claws can be divided into: two-jaw chuck, three-jaw chuck, four-jaw chuck, six-jaw chuck and special chuck. From the use of power can be divided into: manual chuck, pneumatic chuck, hydraulic chuck, electric chuck and mechanical chuck. From the structure, it can be divided into: hollow chuck and solid chuck.
Notes on using chucks
1. When the upper jaw is to be replaced, the toothed part of the bottom jaw and the combined part of the T-shaped block must be cleaned, otherwise the accuracy will be inaccurate.
2. Set the hydraulic pressure according to the shape and cutting conditions of the workpiece. If the tubular workpiece is clamped by high pressure, it will cause deformation.
3. When clamping beveled or tapered cast workpieces, the special claws used must have tooth-like clamping surface workpieces so that they will not fly away.
4. When clamping an eccentric work, the centrifugal force generated by the eccentric weight acts on a single claw, and a low speed is required during processing.
5. Do not use the upper jaw that does not match the teeth of the main jaw. The lack of anastomosis will affect the clamping force and accuracy. In severe cases, the main jaw will be damaged.
6. Before starting the work, make a trial at a low speed and check whether the position of the upper jaw head interferes with the tool and the tool holder.
7. If holding a long workpiece, use the tailstock or the center frame to support the other end.