Laser Seam Tracking System for Welding Automation

The Seam Tracking System is designed to be used in robotic welding systems and is intended to automatically control the position of the welding head during the welding process.

Documentation

RF627Weld. Specification

Sampling rate, accuracy, resolution
Nominal sampling rate (full working range) 484 profiles/s (standard mode),
938 profiles/s (DS mode)
Maximum sampling rate (ROI mode) 5096 profiles/s,
6800 profiles/s (DS mode)
Linearity (measurement error), Z axis ±0.05% of the range (standard mode),
±0.1% of the range (DS mode)
Linearity (measurement error), X axis ±0.2% of the range
Resolution, Z axis 0.01% of the range (standard mode),
0.02% of the range (DS mode)
Resolution, X axis 648 or 1296 points (programmable value)
Laser
660 nm or 405 nm or 450 nm or 808 nm
Class 2M according to IEC/EN 60825-1:2014
Interface
Basic Ethernet / 1000 Mbps
Synchronization inputs RS422, 3 channels
Power supply 9...30 V or 12...39 V for scanners with Blue laser
Power consumption, not more 6 W (without a built-in heater)
Environmental resistance
Enclosure rating IP67
Vibration 20 g / 10...1000 Hz, 6 hours for each of XYZ axes 
Shock 30 g / 6 ms
Operating ambient temperature, °С -20…+40 or 
-20…+120 for scanners with built-in air cooling system
Storage temperature, °С -20…+70
Relative humidity 5-95% (no condensation)
Housing/windows material aluminum/glass

Operating ranges and overall dimensions:

Range MR, mm SMR, mm Хsmr, mm Xemr, mm Size, mm
68/25-22/24 25 68 22 24 Fig. 1
69/130-35/86 130 69 35 86 Fig. 2
70/100-48/82 100 70 48 82 -
70/150-58/122 150 70 58 122 -
95/150-53/106 150 95 53 106 -
82/200-60/150 200 82 60 150 -
91/250-65/180 250 91 65 180 Fig. 3

Detailed CAD documentation (2D and 3D) is available on request at support@riftek.com.

Overall and mounting dimensions of laser scanners:

RF627Weld_Specification_eng_pic1.jpg

Figure 1

RF627Weld_Specification_eng_pic2.jpg

Figure 2

RF627Weld_Specification_eng_pic3.jpg

Figure 3

Controller, specification:

Parameter Value
Screen size 10"
Screen resolution 1366х768
Screen type IPS
Operating system GNU/Linux
RAM 2 GB
Internal memory 32 GB
Power supply 220 V
Housing material aluminum
Weight, gram 2500
Environmental resistance
Operating ambient temperature 0…+45 °С
Relative humidity 5-95% (no condensation)
Storage temperature -20…+65 , °С

Overall dimensions:

Overall and mounting dimensions of the controller are shown in Figure 4:

RF627Weld_Specification_pic4.jpg

Figure 4


Step 1

RF627Weld Laser scanner  is mounted next to the welding torch of the robot:

Лазерный сканер РФ627Weld крепится рядом со сварочной горелкой робота

Connect equipment in accordance with functional diagram:

  1. Connection between the scanner and Controller RIFTEK RF017 (or PC) with Riftek Lamia;
  2. Connection between Controller RIFTEK RF017 (or PC) with Riftek Lamia and the robot controller;
  3. Connection between the robot and the robot controller.

 

Step 2

Select Template:

Choosing a template to measure

 

Step 3

Select Robot Exchange Protocol:

Adjustment, selection of the Protocol of exchange with the robot

 

Step 4

A preliminary scan is carried out and joint coordinates are determined, or welding with position correction in real time is caaried out:

A preliminary scan is carried out and the coordinates of the joint are determined, or welding with position correction in real time

1. Robot for steel roll marking

RF625 Laser Scanner together with Riftek Lamia Software are used to determine the diameter and shape of the roll before marking.

2. Robot for locomotive bogie frame welding

RF625 Laser Scanner together with Riftek Lamia Software are used to determine the coordinates of the weld.

3. Welding of swing-motion truck frame

RF625 Laser Scanner together with Riftek Lamia Software are used to control the robot in real time.

4. Robots for dump truck bed side welding

RF625 Laser Scanner together with Riftek Lamia Software are used to control the robot in real time.

5. Robot for Disk Welding

RF625 Laser Scanner together with Riftek Lamia Software are used to control the robot in real time.

6. Robotic Gas Cutting of Large Diameter Pipes

СRemovable RF625 scanner and Riftek Lamia are used for hole measuring in process of pipe gas-cutting.

7. Robotic bucket welding

RF625 Laser Scanner together with Riftek Lamia Software are used to control the robot in real time.

Example of item designation when ordering

RF627Weld.(WAVE)-SMR/MR-Xsmr/Xemr-M(R)-AC-C


Symbol Description
(WAVE) Laser wavelength. 660 nm – no symbol, 405 nm or 450 nm  – BLUE, 808 nm – IR.
SMR Beginning of the measuring range for Z, mm.
MR Measuring range for Z, mm.
Xsmr Measuring range for X-coordinate at the beginning of the measuring range for Z-coordinate, mm.
Xemr Measuring range for X-coordinate at the end of the measuring range for Z-coordinate, mm.
М Cable length, m.
R Option, robot-cable.
AC Built-in air cooling system. Ordering a water cooling system requires consultation with the manufacturer.
C Controller.

Example: RF627Weld.BLUE-70/50-30/42-5-AC-С – Scanner with a blue laser, SMR - 70 mm, MR - 50 mm, Xsmr - 30 mm, Xemr - 42 mm, cable length - 5 m, air cooling system, controller.

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