Short Bar Loader for CNC Lathe Automation

The Rebel V-65 Servo is a compact, economically priced short bar loader that features a 5-mm to 65-mm diameter capacity range for feeding spindle length round, square, hexagonal and shaped barstock into CNC lathes. With a large magazine capacity allowing for long untended operation, the bar loader combines the advantages of auto bar loading with a small footprint and an affordable price tag.

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The Rebel V-65 Servo is a compact, economically priced short bar loader that features a 5-mm to 65-mm diameter capacity range for feeding spindle length round, square, hexagonal and shaped barstock into CNC lathes. With a large magazine capacity allowing for long untended operation, the bar loader combines the advantages of auto bar loading with a small footprint and an affordable price tag. While processing the bar, there is no contact between the barstock and the loading magazine, so high-speed machining is possible with the use of a properly sized lathe spindle liner.

The loading storage capacity is 650-mm (25.6”) deep. Bars are loaded from the rear of the bar feeder. The inclination of the storage table can be adjusted to give the machine a “soft-load” effect. The bars are then lowered gently into the feeding channel by urethane guides, eliminating the potential for marring of the surface of the bars. Barstock with lengths as long as 1,200 mm (48”) can be loaded by this bar loader. The maximum bar length is determined by the spindle length of the lathe and the chucking package. The barstock is loaded into the main spindle of the lathe by a linear feed mechanism with a servo and encoder. This allows for the feeding of the barstock into position with the use of a fixed bar stop or accurate position. A quick and accurate adjustment mechanism sets the correct height for the lathe’s centerline, according to the bar’s diameter for precise loading into the spindle liner. The V-65 Servo comes equipped with three pusher rods to cover the range of diameters.

The loader features a Mitsubishi PLC controller and a touchscreen interface with an LCD display. Feed force is automatically set by the controller after the bar diameter is entered into the conversational touchscreen control. The multi-line display and operation station includes all needed information to allow rapid setting and productive operation of the loading process. The operator enters the bar diameter and part length, the bar loader automatically adjusts the parameters for loading, feedout and bar change. It also includes a shaft loading option as well as a subspindle “feed-on-the-fly” option with a “return and wait” pusher feature. The machine can store as much as 20 standard setup parameters. The remote control pendant provides control and adjustment capabilities from the lathe area.

Spindle liner change-over is accomplished quickly via the open architecture design of the top cover, and an axial track mechanism allows for maintenance access to the back of the lathe spindle. The axial track can be configured for X- or Z-axis movement.

 

 

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