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HH Roberts / Topwell 5-VF Advanced Knee Mill |
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This is our 5-VF which is basically the 5-GL frame with many upgrades that improve the productivity and accuracy. To start with it has ballscrews on X and Y axes. Both X and Y axes have CNC class servo motors for feeds giving independent variable feed rates and rapid traverses. A rapid trasverse is fitted to the knee lift. Standard equipment includes the Anilam 1000 LCD graphical digital readout . It can store 8 programs in memory, each having up to 250 steps. Programs can be uploaded or downloaded to a PC. The graphical displays include functions like bolt hole patterns. Check here for more details The coolant system and chip pan are standard. The telescoping Y axis covers are standard. The 7 1/2 Hp to 15 Hp vector drive head is available with your choice of back geared or direct drive. Direct drive speed range 75 to 4,000 or 100 to 6,000 rpm. via belt change. Back geared ranges 15 to 750 and 75 to 6,000. Economical CNC UPGRADE Path The electronics cabinet has space reserved for future upgrade to a CNC. Almost all the components needed for CNC are already installed, including the spindle drive and axis drives. Because of this the CNC upgrade is quite economical. A quill kit can be added to make it a 3 axis CNC. |
5-VF Knee Type Milling Machines This is our 5-VF model. It is a state of the art machine to give high performance as a manual machine and because it uses most of the mechanical and many of the electrical systems of our CNC machines, it can be quickly and economically upgraded to a full 3 axis CNC. Later this year we hope to introduce an automated digital readout on this machine giving an intermediate step between manual positioning and a full CNC.# 40 spindle to accept CNC tooling, either Cat-V or BT 12" x 50" table with 15 3/4 " x 35 3/4 " travels CNC class servo feeds on X and Y axes with joysticks to set feed directions independently a sensitive feed control on X and Y, also independent. LED spindle speed display with sensitive knob for speed setting. Optioanl Fagor or Heidenhain digital readout. |
| The picture to the right is actually that of a 4-VF, but it serves to show the box ways on the saddle and saddle and the wide table surface. |  |
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To the left is a picture of a 4-GL-CNC that shows the new space saving design for the X axis motor. The 5 series can be built in the same style. The motor is moved in front of the table under the black guards. This saves about 22" of shop floor space. You can also see in this picture the similarity in the electronics cabinet and pendant arm. This is part of the easy upgrade path to a CNC, which is built into the VF series. See the view of the cabinet below where you can see the space at the top |
CNC Upgrade Path is Built In ! The electronics panel show to the right has an empty area in the top left which is reserved for the CNC contrtol . The two servo drives in the lower left corner are for the X and Y axis feeds. These drives are also used when the upgrade to CNC is done. This saves a lot of rewiring and expense. The ballscrews on X and Y axes are standard on this mill and means there is no remove and replace of the table to upgrade to CNC. |
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To the left is the control pendant for the VF series. The current models come with the Anilam 1000 LCD graphical digital readout as standard equipment. Controls on the Panel: At the top left is the spindle speed display. Under the display is the speed setting knob and the forward - stop - reverse switch. In the middle and are under the white safety bar making them a bit hard to see are the joysticks for axis selection Just below the joysticks are the geared knobs for sensitive feed rate setting. Feed rates are displayed on the digital readout. On the knee mills X and Y have the feed knobs and the vertical knee lift just had the joystick for rapid positioning. On the bed mill versios all 3 axes have feed knobs. Below the feed knobs are the yellow buttons for the rapid traverse for each axis. The lower switches are for the worklight and coolant on the left and an E-stop on the right. |