Automatic Screw Machines--Davenport Machine Tool

The new Servo Drive Model B bar loader machine uses standard change cams for each job. Capacity is 0.875" round, 0.593" square and 0.750" hex. Maximum stock feed and turning length are both 3". Minimum index time is 0.3 seconds. It has spindle speeds of 350 to 3,500 rpm, selectable in 1 rpm increments. There are no

Related Suppliers

The new Servo Drive Model B bar loader machine uses standard change cams for each job. Capacity is 0.875" round, 0.593" square and 0.750" hex. Maximum stock feed and turning length are both 3". Minimum index time is 0.3 seconds. It has spindle speeds of 350 to 3,500 rpm, selectable in 1 rpm increments. There are no mechanical clutches or brakes. The spindles are driven from a variable speed motor controlled from a PLC with just one set of reversible change gears (40-24) providing a high and low range. The servomotor is coupled directly to the cam train. The machine can be fine-tuned for speed, feed, stroke and index interval. A pendant on the left side of the machine carries a screen that displays functions governed by an on-board PLC. Once the optimum functions for a job have been determined they can be stored for future use. Job characteristics for up to ten different jobs can be stored at any one time. A servodriven threading attachment developed for this machine can thread or tap at an infinite number of speeds depending on material and conditions. Shifting from high to low is possible at any point during the threading cycle. The same attachment drives third and fourth position tool spindles at a programmed speed for turning, drilling, reaming or broaching as well as threading and any of these operations can be combined. Since the speed and shifting point for the tool spindle is servo-controlled, the rotational speed of the spindle becomes a selectable variable for optimizing cutting conditions. Also on display will be a Multi-Slide single spindle CNC bar automatic with 16, 26, 36, 42 and 60 mm spindle capacities and the Crudgington CMT-830-8 spindle 1 1/4 capacity CNC machine.

Editor Pick

MS40-8 Multi-Spindle Automatic Lathe with Eight Spindles

Index Corp. has developed a multi-spindle automatic lathe series, this time with eight CNC spindles, two backworking spindles for rear-end machining, deploying as many as 18 CNC slides (X and Z) and additional Y axes, if required.