Robotic Laser Hardening Complex
The Robotic Laser Hardening Complex (RLHC) is designed for surface heat treatment (hardening) of crankshaft journals using a high-power fiber laser.
The RLHC is part of a conveyor production line for crankshaft manufacturing, enabling full-cycle processing. It is fully integrated into the production line and operates automatically without operator intervention.
The complex consists of a fully enclosed chamber with an industrial robot manipulator that has increased payload and precision, equipped with an optical laser head and a table with fixtures for positioning the crankshaft during hardening.
Above the chamber runs a conveyor line with an automatic loader and grippers. Inside the chamber, automatic sliding gates allow loading and unloading of crankshafts via the loader. The crankshaft is automatically positioned and clamped in the fixtures for hardening all journals. The RLHC can process different types of crankshafts.
General View of the Complex
Main Components of the Complex
- Cabin
- Robot pedestal
- Positioner
- Industrial robot manipulator
- Power distribution cabinet (VRU)
- Operator monitor
- Air preparation unit (BPRV)
- Cooling system for laser optical head
- Cooling system for laser source
- Automation control cabinet
- Laser source
Front view of the complex
Rear view of the complex
System Components
Industrial Robot Manipulator
Type — 6-axis robot
Max payload — 45 kg
Working radius — 2051 mm
Positioning repeatability (ISO9283) — ±0.04 mm
Axis rotation 1 / 2 / 3 / 4 / 5 / 6 — 360/240/255/800/245/800°
Max speed of axes 1 / 2 / 3 / 4 / 5 / 6 — 175/175/175/250/250/250 °/s
Power supply voltage — 200-600 V
Weight — 472 kg
Laser Radiation Source
Laser power — 160-10000 W
Wavelength — 1070 nm
Beam quality (BBR) — 6-8 mm*mrad
Fiber diameter — 200 μm
Fiber length — 20 m
Control System Automation Cabinet with User-Friendly Interface
Optical Scanning Gimbaled Head
Focusing lens focal length — 800 mm
Optical head focal length — 749 mm
Collimator focal length — 160 mm
Full amplitude range FR400 — ±4 mm
Protective gas supply unit — 1
Coaxial camera — 1
Air knife — 1
Operation of the Complex
Installation of the crankshaft by a conveyor loader into the fixture in an automatic cycle
Hardening process of the crankshaft working surfaces in the fixture in an automatic cycle
Hardening process of the crankshaft working surfaces in the automatic cycle, processing time not exceeding 180 sec
Crankshaft before and after surface hardening of 10 working surfaces
Macrographs of the connecting rod journal of the crankshaft with an oil channel. Hardness not less than 52-58 HRC up to 62 HRC
Gallery of completed projects
