Narzędzie QT
(Quarter Turn Adjustment Tool)
Automatic correction on general-purpose machines - just leave them to us!
Easy automatic compensation on general-purpose machines
Tools designed for high-precision machining and precise diameter compensation
Easy compensation for general-purpose machines results in reduced investment
Automatic edge compensation without any need for special equipment
Fine adjustment of ø2.5 µm possible
Amazing facts!
── Introducing ideas and technologies ──
The QT tool utilizes the functions of a machining center to achieve automatic compensation, enabling machining on general-purpose machines.
Its unique built-in mechanism enables highly precise fine adjustment in ø2.5 µm increments.
The new tool realizes “high productivity,” “high-precision machining,” and “reduced capital investment.”
This is the point!
Introducing QT tool for automatic compensation with simple jigs on general-purpose machines
Excellent!
Compensation method (normal type)
1: Spindle positioning (orientation)
2: Inserting the adjustment head into the block
3: Turn spindle 90° for 2.5 µm cutting edge compensation
Compensation method (HL type)
1: Spindle positioning (orientation)
2: Engage the geared part of the adjust collar with the block
3: Turn the spindle or move the X axis for cutting edge compensation
High precision correction / excellent tracking performance
Good!
- Resolution ø2.5 µm
- Excellent tracking performance
Reduced equipment installation cost
Good!
- 70% less equipment cost when using a general-purpose machining center
Development / product concept
“Current status and challenges”
- In the case of machining difficult-to-machine materials and long cutting distances, the cutting edge wear progresses quickly, resulting in more frequent dimensional adjustments of the cutting edge and insert replacement, which affects the operation of the production line.
- As a solution, automatic compensation of machining diameters using dedicated equipment is used, but this requires a large capital investment.
“Development points”
- QT Tool utilizes the functions of a machining center to automatically compensate for machining diameters, enabling machining on general-purpose machines.
- This eliminates the need for special compensation equipment and facilities, reducing investment and improving production line utilization rates.
Processing example
Tool name
QT Tool
Machining work
Cylinder block bore hole
Work material
Grey cast iron
(JIS G5501 FC /
EN 1561 EN-GJL /
DIN 1691 GG)
Tool diameter
ø80.5 mm
Cutting conditions
Cutting speed: Vc = 1112 m/min
Feed: f = 0.35mm/rev
Number of
processing units
100 units
Required accuracy
Diameter ø80.5 -0.04 / -0.065 mm
Surface roughness: Ra5
Automatic diameter compensation
Roundness
Product specifications
- Tool specifications
Tool name
QT Tool (normal type)
Target process
Finish boring process for ferrous materials (e.g. cylinder bore finish, crank hole finish, connecting rod big end hole, etc.)
Standard conditions
ø45 mm ~ (limited to hole)
Standard conditions
Feed: f = 0.1~0.15 mm/rev
Resolution
ø2.5 µm / 1 time
Compensation range
+ø0.2 ~ -ø0.1 mm
- Example of applicable work
Cylinder bore
- Tool specifications
Tool name
QT Tool (headless type)
Target process
Finish boring process for ferrous materials
(e.g. crankshaft bearing hole, etc.)
Setting diameter
ø70 mm ~ (for blind hole)
Standard conditions
Feed: f = 0.1~0.15 mm/rev
Resolution
ø2.5 µm / 1 time
Compensation range
+ø0.2 ~ -ø0.1 mm
- Example of applicable work
Bearing hole
- Tool specifications
Tool name
QT Tool (boring bar – BB type)
Target process
Finish boring process for ferrous materials (e.g. connecting rod small end hole, gear inner diameter finishing, etc.)
Setting diameter
ø8 mm ~ (for small diameter holes)
Standard conditions
Feed: f = 0.1~0.15 mm/rev
Resolution
ø2.5 µm / 1 time
Correction amount
+ø0.2 ~ -ø0.1 mm
- Example of applicable work
Small connecting rod end hole