Wired Touch Probe for CNC Robots [K3M Series]

Wired Touch Probe for CNC Robots K3M Series

Workpiece centering and dimensional measurement by mounting on Robots

The K3M series is a touch-probe sensor designed for robotic applications.
Attached to a robot arm or welding robot, it performs dimensional measurement, centering, and positioning of workpieces. High speed contact of 500㎜ to 1000㎜/min is available for robots.

Detecting Direction: ±X,±Y,Z 3-Demension (all- round) Type

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Features

Capable of high-speed contact detection for robots

High-speed application at 500 to1000 mm/min is achieved, making it ideal for use with robots, which have faster operating speeds than machine tools.

Waterproof and oilproof construction with IP67 rating: Resistant to Water and Liquids

Applicable for use in adverse environments with splashing water, oil, coolant, and chips.

Resistant to vibration due to pre-travel (PT)*.

(*Pre-travel: the amount of movement from the time the touch-probe contacts the work to the time the output switches)

Built-in I/F unit

An I/F unit is equipped as standard to prevent damage to the touch-probe due to in-machine shocks and vibrations or sudden overcurrent from external sources.

Wide variety of optional items

Stylus, NO/NC measurement signal output, mounting method, cord length, and other options can be selected.

Principle Structure

By placing the touch-probe on the stylus tip against the workpiece or table, a high-precision ON/OFF signal is output, which can be input to NC/PC equipment.

Built-in high-precision, high-durability touch switch is activated by stylus movement.

False signals and chattering due to vibration and shock do not occur.
Touch-probes are made of low-electrical resistance material for long life.
There is no change in contact force based on the direction of detection.
It supports both NC and NO (Open and Closed) contact structures.
Pre-travel and homing errors do not affect repeatability.　

Positioning workpiece by METROL Touch Probe attached a Robot arm.

Acquisition of height coordinates of curved workpiece by METROL Touch Probe

Main Specifications

Product Category	Wired Touch Probe
Applications	CNC Robots / Welding Robot
Purpose of use	Workpiece centering and dimensional measurement
Direction	3-Dimension (all-round) type
Repeatability	0.03mm（At operating of speed 500 - 1000mm/min) 0.01mm（At operating of speed 100 - 200mm/min)
Protective structure	IP67
Contact life time	3 million
Pretravel	X,Y=±0.4mm　Z=0.1mm
Stroke	X,Y=±10mm　Z=4mm *with stylus length of 35.5mm (F635)
Contact Force	XY=1Ｎ　Z=3Ｎ
Stylus material	Tungsten carbide ball
Cable	Oil resistant φ5 / 4 cores　 Tensile strength 30N, Minimum bending R7
LED lump	Default: LED OFF / Operating: LED ON
Contact structure	NO (Normally open)
Output mode	NC (Normally closed)
I/F unit	Built-in
Operating temperature range	0 - 60℃　(Ice free)
(Over travel signal) Output mode	-
(Over travel signal) Contact rating	-

Circuit Diagram

Note:

Intended coolant used is water-soluble coolant (alkaline).
Do not use at an operating speed of 10 mm/min or less.

Options

Customization

The blue line part can be customized. Please refer to our brochure for details.

Standard Model

*This is the part number of the standard specification of the K3M series.
If you have not determined any specific specifications, please contact us about the following part number.
* Styluses are sold separately.

Product No.	Direction of detection	Contact force	Repeatability	Protective structure	Contact life time	CAD
K3MA-ST1	±X、±Y、Z 3-dimension	XY=1N Z=3N	0.01mm	IP67	3 million	CAD(DXF)