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SV-BP series

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Supplier of welding seam positioning and welding seam tracking sensors

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SV-BP series

RRT-SV2-BP series intelligent welding seam identification and tracking sensor is a laser detection and tracking welding seam sensor, with the advantages of small size, easy installation and maintenance, and can identify various welding seams.

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Basic Size

智能焊缝跟踪传感器

Installation size

BP series smart sensors have three mounting surfaces, and the mounting dimensions and threaded hole sizes are shown in the figure:

智能焊缝跟踪传感器

Installation instructions

When installing BP series intelligent sensors, it is recommended to install them at the front end of the welding gun with extra distance (30~90mm). The sensor should be put to the welding gun as far as possible; In the vertical direction, the upright distance between the end of the welding wire and the bottom of the sensor msut be in the Viewable range, and it is recommended to be near the best visual distance (refer to Table 2: Sensor Model Selection Table (P11)); Horizontally, the welding gun has to be in the middle of the sensor.

1) When using the sensor for welding, it is recommended to install the sensor bracket in the flange, and do not install it on the welding gun. As a replaceable part, the welding gun may move or damage the sensor due to collision. Rt-sv2-bp series Installation and Maintenance Manual 6

2) The sensor bracket has good rigidity and will not generate deformation and vibration due to acceleration and deceleration of the robot; The sensor and bracket should be fixed well so that there will be no relative displacement due to the movement of the robot and the pulling of the cable.

3) The bottom of the arc baffle shall be lower than the connection line between the end of the sensor and the end of the welding wire to avoid direct spatters blocking the glass and affecting the identification of the sensor;

4) The sensor must be insulated, so the connection barrier between the sensor and the robot or other equipment must be made of insulating material (or part of the mounting bracket is insulated) (as shown in the figure).

Attachment: The picture below is a general fixture fixed on the welding gun selected by our company. It is only for debugging purposes and is forbidden to be used in actual welding.

Cooling and glass window protection

There are two independent air channels inside the BP series smart sensor, including a cooling air inlet (CI) and a cooling air outlet (CO) for sensor cooling, as well as a circuit inside the sensor, and a glass window for glass window protection. Air port (SI) and its passage.
Note: When this function is not used, the air pipe joint cannot be left empty, and the air pipe can be blocked or sealed with tape

cooling system

For higher temperature environments, the sensor can be provided with suitable pressure and flow airflow to keep the sensor at a suitable working temperature.

Refer to the recommended parameters in the table below

Trachea type	6mm outside diameter trachea
Gas pressure	0.3～0.6MPa
Gas flow	More than 30L/min

Glass window protection

There is an air outlet at the bottom of the glass window, the continuous airflow reduces the pollution of dust and smoke to the lens.

Refer to the recommended parameters in the table below

Trachea type	6mm outside diameter trachea
Gas pressure	Less than 0.1MPa
Gas flow	20 ～26L/min

Note: 1. The protective gas of the glass window must be clean, dry and oil-free, otherwise a layer of oil may be formed on the glass, reducing the sensitivity of the vision system and affecting the sensor performance.
2. The gas flow rate is too high or too low will reduce the performance of the protective gas.

Power connection

Before use, insert the cable for power supply and data transmission of the sensor into the corresponding socket, and tighten the nut. When installing, ensure that the cable above the sensor is properly supported and fixed with a space for movement, and that there is no tensile stress on the cable when the sensor is moved. Otherwise, it may cause the sensor to move and affect the visual performance, and seriously damage the sensor or cable.
When laying out the cable, it should meet the minimum bending radius requirement, that is, the minimum bending radius should not be less than 10 times its outer diameter.

Sensor LED light

BP series smart sensors are equipped with two LED indicators. The green light is the network hardware connection LED light. The green light is always on after the sensor is powered on. Otherwise, there is a problem with the communication box and the sensor's hardware path, which needs to be eliminated first; the yellow light is the network data interaction LED light. The yellow light occasionally flashes to indicate that there is no external device or sensor. Connected, the yellow light flashes frequently, indicating that the external device (computer or robot) and the sensor have data interaction.

working principle

The tail of the sensor is a very important part of the laser vision system. The laser emitter at the tail emits a line of laser light to hit the surface of the object, and then the image capturer inside the sensor captures diffuse reflection light through the lens at the tail. The distance between each location point and the sensor.
The light path at the bottom of the sensor must not be blocked, otherwise it will affect the laser emission and signal recovery and reduce the accuracy. Figure 11 shows the space required for the sensor to work normally.

Parameters and selection

RRT- - SV2- -P BP
	size		104 4 .5* 60* * 33 mm
	weight		378g
	Frame rate		30Hz
	interface		12pin aviation plug interface
	communication	Types of	Ethernet N/CAN bus
		speed	Ethernet 1000M
	power supply	Voltage	9 ～ 32V
		Power consumption	0.25A@24V
	working environment	temperature range	0 ～ 50℃
		Humidity range	10 ～ 95% without condensation
	laser	Spot shape	Linear
		wavelength	650nm
		Power rating	IIIB
	welding	Adaptability	Anti-reflection/ / Anti-arc interference Anti-splash/ / Anti-electromagnetic interference
		Types of	Lap / / butt / / corner connection, etc., support customization
	Applicable process		MAG/MIG/TIG/
Table 1 Parameters

The visual range, laser width and accuracy of each sensor are different, you can select the appropriate sensor according to the requirements according to the following table.

model	Best viewing distance	Depth direction			Width direction
model	Best viewing distance	Near end Z1	remote Z2	Depth resolution	Near end Y1	remote Y2	Width resolution
RRT- - SV2- - BP- -120	120	70	170	0.04~0.2	25	60	0.04~0.08
RRT- - SV2- - BP- -120K	120	70	170	0.04~0.2	50	110	0.04~0.1
RRT- - SV2- - BP- -120Z	120	70	170	0.02~0.1	18	37	0.02~0.05

Sensor model selection table

Installation process

BP series intelligent sensor and robot (computer) installation process reference diagram

Replace protective glass

The protective glass of the BP series smart sensor can prevent the optical components from accumulating soot and protect the optical components well. During use, the air inlet is protected by the glass window and blown out from the glass surface, which greatly reduces the accumulation of smoke and dust on the glass surface.
In order to use the sensor safely and reliably, it is recommended to check the protective glass daily and remove it for cleaning or replacement regularly. Replacing the protective glass: press the finger as shown, and pull out the contaminated glass; then insert the clean glass in the same way (as shown in the figure).

Note: 1. The laser hurts the eyes. When replacing the glass, the laser must be turned off.
2. When replacing the glass, make sure that there are no finger marks or stains on the glass at the laser exit and receiving window.

save

The RRT-SV2-BP series of smart sensors should be stored at a temperature of 0℃-60℃; the sensor should be stored in a clean, sealed and equipped with a desiccant environment to prevent condensation of internal components, and sudden temperature changes will also cause condensation Lu, also avoid this situation.