Wired Touch-Probes for CNC Lathes and Special Purpose Machines [K2C Series]

Wired Touch-Probes for CNC Lathes and Special Purpose Machines K2C Series

Measuring inner and outer diameters and end faces of workpieces on CNC lathes and small multitasking machines in general

The K2C series is a wired touch-probe mounted on a CNC lathe to measure the inside/outside diameter, and end face of a workpiece.

Detecting Direction: ±X、Z 3-Direction type (without pretravel)

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Features

1μm Repeatability

Operates at the moment the touch-probe contacts the workpiece, enabling highly precise position detection.

No directional variation

By limiting the detection direction to two, differences in sensitivity (directional characteristics) are minimized, and detection differences in the ±X direction are minimized, enabling highly precise detection.

High water and dust resistance with IP67 protection rating

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

Having No pre-travel (PT)* allows for highly sensitive detection.

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

Wide variety of optional items

Stylus, 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.

The moving part swings with the four points of contact as fulcrums. Since the contacts play the role of fulcrums, a momentary ON/OFF signal is output when one of the fulcrums is detached.

*It is recommended to supply power only during measurement to protect the contact-point.
(*The contact force varies depending on the direction of detection. If the contact force varies depending on the detection direction, a perfect circle will not be formed when measuring a perfect circle shape (roving phenomenon), and thus it is necessary to take this specific quality into account.)

Main Specifications

Product Category	Wired touch-probe
Applications	CNC lathes / Special purpose machines
Purpose of use	Measuring inner and outer diameters and end faces of workpieces
Direction	±X、Z 3direction
Repeatability	0.001mm (Recommended operating speed of 50 - 200mm/min)
Protective structure	IP67
Contact life time	300,000
Pretravel	0
Stroke	X=±8mm　Z=4mm *with stylus F635
Contact Force	X=0.4N　Z=2.5N *with stylus F635
Stylus material	Tungsten carbide ball
Cable	Oil resistant φ5 / 2 cores 　 Tensile strength 30N, Minimum bending R7
LED lump	Default : LED ON Operating : LED OFF
Contact structure	NC (Normally closed)
Output mode	NC (Normally closed) or NO (Normally opened) (When using an external I/F unit CL-1F)
I/F unit	External I/F unit
Contact rating	DC5V - DC24V　Steady Current: 10mA or less　 Rush Current: 20mA or less *Limit the LED forward current below 10mA.
Operating temperature range	0 - 60℃　(Ice free) （CL-1F operating temperature range：0 - 50℃）
(Over travel signal) Contact structure	-
(Over travel signal) Contact rating	-
Accessories	External I/F unit CL-1F

Circuit Diagram

Notes:

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 K2C series.
If you have not determined any specific specifications, please contact us about the following part number.

Product No.	Direction of detection	Contact force	Repeatability	Protective structure	Contact life time	CAD
K2CB-ST1	±X、Z 3-direction	X=0.4N Z=2.5N	0.001mm	IP67	300,000	CAD(DXF)