The small machine footprint of the DD-7 is able to outproduce much larger double disc grinders when the component to be ground is small in diameter. Combining the latest in multi-axis slide controls, the machine can be specifically configured for your application.
The interface software can be designed to meet your production requirements, encompassing controls for all peripheral attachments such as robots and bowl feeders. In-line inspection can be deployed to automatically size adjust, further improving the machine's accuracy and repeatability.
The control software is entirely developed at Glebar and is fully customizable to address your application and process. The intuitive touch screen interface allows for ease of use and flexibility. The machine software interface was developed to allow an unskilled operator to run many high precision machines simultaneously.
In Vertical Mode (sometimes referred to as carriage), parts are fed through the grinding wheels vertically using a precision-machined steel plate. Holes in the plate encapsulate the part during the grinding operation. High volume carbide drill blanks are processed automatically using this method. In Thrufeed Mode, components are fed in a continuous fashion through the machine, allowing for increased throughput. Silicon nitride roller bearings are ground using this method. In Precision Fixture Mode, a precision fixture is mounted on a high accuracy slide. Square ceramic blocks can be perpendicularly ground using this mode of operation. A competing process would be to surface grind parts in batches - a non-continuous, and therefore, slower method of manufacturing.
The DD-7 uses brushless servo motors versus stepper motors. This is a faster and more precise way of moving slides. A servo-driven, close-looped drive offers the operator a high degree of control over the parts being ground. 0.1 micron linear glass scales coupled with absolute encoders on the axis make the machines faster and highly precise. An available brake dresser is equipped with a diamond roll to dress both wheels.
Remote connectivity simplifies troubleshooting and maintenance.
Equipped with a diamond roll to dress both wheels.
Designed to part specifications and integrated with machine controls. Custom feeding is available built to part specification.
Built specific to the part, Glebar offers a variety of conveyors which move parts through the process seamlessly and quickly.
Diameter contact gauge mounted on exit side of the machine measures the ground part. Diameters at several points can be measured, used for size compensation, and compared against high and low user-defined limits. Contact measurement is unaffected by coolant.
Integrates laser marking process directly into the cell.
Collects and removes debri and dust from the work area.
Comes with arbor, flange with four weights and stand. Balanced grinding wheels are critical for high precision parts.
Post grinding and cleaning, the data is collected, analyzed and fed back to the machine for automatic size compensation. Measurements are shown on a trend graph on the machine control.
Built specific for the part; integrated into the cell.
Automatically picks parts from trays, loads into machine, unloads and places back to parts tray. Fully guarded and interlocked access doors. Robot arm incorporates two grippers for staging the loading and unloading during the grind cycle, reducing idle time.
30 gallon capacity with two removable settling tanks centrifugal pump & filtration package
Glebar prides itself on selling precision grinding machine system solutions, tailored to your specific needs. Below is a small subset of applications, performed on this machine, that Glebar has provided solutions for over the years.
Challenge: Customer wants to decrease cycle time by taking this from a one-sided traditional surface grinding application requiring two operations to a single double end grinding application.
Challenge: To end grind printed circuit board carbide drill blanks used by a major tool manufacturer to qualify the blank before fluting. The existing method relied on a batch process where parts were placed, a stack at a time, into a fixture and surface ground. Control over the length was highly dependent upon the setup of each batch in the machine, and length adjustment and perpendicularity were cumbersome to adjust for small diameter parts. Existing machines on the market were extremely large in comparison to the small diameter of the part to be processed, and were very expensive.
Challenge: To accurately grind alumina spacers used in nuclear power plant control rods. The length of the components are extremely critical to the efficiency of the fuel rod. The components need to be processed at a high rate and length verified for all parts.
Below is a sample of select components Glebar has ground, on this machine, over the years. Please contact us and send us your drawing for a personal consultation.
DD7 Double Disc (10" Wheel) Grinding Hardened Steel Punches
DD-7 Double Disc Grinding Nuclear Fuel Cell
DD7 Double Disc Grinding Metal Bearings (w/ Robot)
DD-7 Double Disc Grinding Composite Strips
DD-7 Double DIsc Grinder | Grinding Carbide Drill Blanks with Bowl Feeder
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