INNOVATIVE PRODUCTS: DESIGNED AND MADE BY PUMORI

SLIM BORING HEAD

Global industry shows steadily growing demand for high-precision machining of smaller and smaller microsized body pieces. Pumori’s designers have developed an electronic boring head maintaining a deep-boring diameter of 20 mm. That required some changes in the design of the head, particularly in the crosshead movement mechanism. Further development along this very promising pathway will suggest a special new class of boring heads.

PORTAL BORING HEAD

Onward downsizing of boring heads has given rise to a portal-type head. It features a novel type of joint replacing the traditional dovetail. This and some other refinements have made the head smaller (75 mm), a third lighter (1.4 kg), more rigid, more balanced, and less metal-consuming. It is set up in half the time. Its small size was no obstacle to fitting the head with embedded electronics. The new head is good for both heavy roughing and fine finishing. The portal boring head is compatible with practically all types of chucks.

 

BACKLASH-FREE BORING HEAD

Backlash makes head adjustment a longer and more complex process. UZIS designers modified the head, decreasing the backlash several times during setup. It simplifies and speeds up size adjustment, and, most importantly, reduces imbalance dramatically, which results in less noise and vibration, better productivity, and a longer life of machine components. This improvement will be applied to all PUMORI boring heads. All previously purchased PUMORI cutting tools and shanks are compatible with the backlash-free boring head.

 

COMPACT BORING HEAD

Modifications of the boring head design have made it smaller. This results in a reduced overhang to machine larger pieces, and an increased rigidity to allow for a much higher speed and a better finish. Unlike compact heads of other manufacturers, this head is universal.

All previously purchased PUMORI cutting tools and shanks are compatible with the compact boring head.

 

 

HYDRAULIC BORING HEAD
(UNIQUE PRODUCT)

Hydraulic clamping provides increased clamping strength to any rotary tool and greatly dampens vibrations during machining. Besides, the hydraulic head is not tied to a specific tool design. All that makes it fit not only for high-quality boring, but also for drilling and milling. The hydraulic clamp is located in the slider, and adding oil is easy.

Not only are all previously purchased PUMORI cutting tools and shanks compatible with the boring head with a built-in hydraulic clamp; but any tool made by other manufacturers is compatible if its shank diameter matches the axial bore of the collet of the hydraulic-clamping boring head. For the first time in the world, all the wearing parts of the hydraulic clamp are replaceable. Hydraulic clamps from other manufacturers are not repairable. On any PUMORI boring head, the conventional slider can be replaced by the hydraulic one. Therefore, at the customer's request, Pumori will fit any of its heads with a hydraulic clamp.

 

 

BORING HEAD WITH ELECTRONIC DIGITAL READOUT
(UNIQUE RUSSIAN PRODUCT)

High-quality precision boring systems with digital readout. The backlit electronic display is either integrated in the head or placed on the external control panel.

Main sizes:
Head
code
BFE443.25 BFE443.32 BFE443.40 BFE443.50 BFE443.63 BFE443.80
Bore diameter,
mm
28...42 36...53 6...74 6...126 6…168 6...290
Accuracy,
μm
0,3

All heads are equipped with:

  • a measuring ruler with a magnetic scale,
  • a magnetic pickup,
  • terminals for connecting to the electronic console,
  • a wire-connected electronic console or a wireless flash drive.

Supplied as:

  • Boring head with a kit of attachable tools in a suitcase
  • Stand-alone head with a shank

 

IS PYRAMID EXTERNAL MEASURING DEVICE
(UNIQUE DESIGN, PATENT PENDING) 

Universal multifunctional measuring device designed to estimate movements of machine-tool attachments; it serves to convert a conventional mechanical boring head to an electrical one with digital readout.

The device contains all the electronic components necessary for measurement, such as a battery, a read-out board, a display; the boring head itself houses only a magnetic ruler and a measuring sensor. The device is easy to use. All you have to do is attach it to a special magnetic connector on the body of a PUMORI electronic boring head and, by turning the dial, read the real movement of the slider on the display. This prevents errors associated with the complexity of adjustment using the dial and possible backlash in the head mechanism. Besides, absence of electronic components in the electronic boring head itself makes it much more reliable and durable compared to similar heads by other manufacturers, where all electronic systems (battery, read-out board and display) are located in the head itself.

It is used to:

  • measure relative motion of metallic elements to an accuracy of 0.5 μm
  • indicate movements of tool systems to an accuracy of 1 μm/ø
  • set up tools and attachments

Technical data:

IS1000 measuring device

  • Range of measurement: ±5 mm
  • Measuring resolution: 0.5 µm
  • Measuring accuracy: down to 1 µm/⌀
  • Overall dimensions: 56 × 40 × 12 mm
  • Weight: 50 g

IS1000.1 measuring device

  • Range of measurement: ±5 mm
  • Measuring accuracy: down to 1 µm/ø
  • Overall dimensions: 53 × 150 × 10 mm
  • Weight: 35 g

To be used:

  • With a mechanical boring head
  • With turning units
  • With cross-slides
  • For high-accuracy setup of turning and milling machine tools and attachments
  • For other specific measuring operations