YDTech® manufacturer of center driving pin drive grips on (milling, grinding, lathe) machines! supplier of hardened center pins(points) on face drivers for live (dead) chucks in china.

greater accuracy and improved part quality the face drivers center point centers the part, establishing the axis of rotation while the drive pins penetrate the face of the workpiece.we only produce drive pins, needle roller pins,custom your drawings not face drivers. clamped between the center in the tailstock and the face driver in the headstock the workpiece is ready for machining in a single operation. continuous machining from end to end in one clamping improves concentricity of the part.

in fixed-center face drivers, a hydraulic or pneumatic actuator pushes the drive pins into the workpiece, whereas with spring-loaded types, the tailstock pushes the workpiece to the drive pins. in cases using a fixed center driver, you must have the right size actuator and drawbar to avoid overpowering the tailstock and to optimize the machines hydraulic pneumatic system.

the center pin located on the side of the tailstock pushes the work piece against the fixed center pin of the face driver. the motion of the drive pins against the surface of the work piece is initiated by the clamping cylinder mounted into the machine.

load and unload times with a face driver are consistently faster than using drive dogs or chucking. since the face driver self centers the workpiece, parts can be loaded in the machine and clamped in seconds. chucking takes considerably longer while the operator ensures that the part is centered and square in the chuck jaws. higher throughput, decreased downtime and increased productivity can be accomplished with face drivers.

FDP-2 drive pins,lathe chucks.,face drivers, lathe face driver driving pins,sizes, drive pins, changeable driving pins, drive teeth pins

for best results, the machine should be equipped with a heavy-duty live center. the live center will allow smooth, free rotation of the workpiece. if a power-operated tailstock is used, it should include a means of throttling the actuating- mechanism to prevent a hammer blow effect when the workpiece face contacts the drive pins of the driver; otherwise, the pins could be damaged. center hole size for proper face driver function while center hole diameter is not critical, it can adversely affect face driver operation if not taken into consideration in the selection of the proper center point for a given application.

this area of the face drive is the housing and guide for the drive pins, center pin and its compensating mechanism system. the compensating mechanism system allows the drive pins to adjust for any variation in flatness of the workpieces end. in some mechanical designs, a convex and concave washer system works with the spring-loaded or fixed-center pin to allow the system to accommodate irregularly faced workpieces. unlike a chuck or grinding dog, a face driver grips and turns the part by locating only on the face of the workpiece. with a chuck or grinding dog, the part must be removed after the first operation, reversed and rechucked before any more operations can be performed.traditional machining requires multiple operations and setups that increase costs, cycle times and reduce part quality.