Machine Tool Probe
  • Item No.: PO
    Product name: Machine Tool Probes
    Size(Probe): φ40 mm* L50mm
    Transmission Type: 360° IR
    Transmission Distance: 5m
    Rotational Speed: Max 1000rev/min
    Triggering Direction: ±X/±Y/-Z
    Repeatability of One-way triggering 2δ(*1): 1μm
    Max overrun: XY:12.5mm  +Z:6mm
    Manufacturer: Chotest Technology Inc.



§≡≡≡≡   Functions   ≡≡≡≡

◆ Before CNC processing, automatically find the coordinate system and datum point of the workpiece.
◆ In CNC processing, automatically measure the key sizes and related coordinates to determine whether compensation is required or not.
◆ After CNC processing, automatically measure the sizes, shapes, and positions to qualify finished product.

§≡≡≡≡   Features   ≡≡≡≡

◆ High repeatability: One-way repeatability <1μm
◆ Long standby time: As long as 6 months
◆ Omnidirectional energy-absorbing design: 360° omnidirectional energy-absorbing design, which help to cushion the spindle in impact when an operating accident occurs
◆ Waterproof design: IP67 for probe and receiver
◆ Intelligent LED indicators: Show current working status of the probe


§≡≡≡≡      Photo     ≡≡≡≡

§≡≡≡≡  Parameters ≡≡≡≡


1. Technical parameters of the probe:
1) Battery: Two 1/2AA 3.6V lithium batteries;
2) Storage temperature: (-25~70)℃;
3) Working temperature: (5~55)℃;


Model No. PO40 PO60 PO40L
Size(Probe) φ40 mm* L50mm φ63 mm* L76mm φ40 mm* L52mm
Weight(Probe Without Holder) 260 g 880 g 280 g
Transmission Type 360° IR 360° IR 360° IR
Transmission Distance 5m 6m 5m
Starting Mode Code M Code M, Revolve Code M
Rotational Speed Max 1000rev/min Max 1000rev/min Max 1000rev/min
Triggering Direction ±X/±Y/﹢Z ±X/±Y/﹢Z ±X/±Y/﹢Z
Repeatability of 
One-way triggering 2δ*1
1um 2um 1um
Max overrun*2 XY:12.5mm  +Z:6mm XY:12.5mm  +Z:6mm XY:12.5mm  +Z:6mm
XY Trigger Force*3 0.5 N~0.9N 0.5 N~3.5N Adjustable 0.3N~1.6N Adjustable
Z Trigger Force 5.8N 3.5N~14N Adjustable 4N~10N Adjustable
*1: Test with a 50mm straight stylus under speed 480mm/min.
*2: Test with a 50mm straight stylus
*3: Test with a 50mm straight stylus under speed 480mm/min.



2. Technical parameters of the receiver:
1) Transmission type: IR, 360°;
2) Working range: Max 8m
3) Weight: 926g
4) Input voltage: 12V~30V
5) Input current: <100mA, receiving <40mA;
6) Cable to machine controller: dedicated 13PIN shielded cable, 8 meters or 15 meters;
7) Storage temperature: (-25~70)℃,working temperature: (5~55)℃;


§≡≡≡≡  Description ≡≡≡≡

Machine tool probe PO series applies 3-point trigger design which is the most stable structure. There is a trigger unit inside the probe. When the stylus is moved radially or axially by external force, the trigger unit is triggered. Then the circuit inside of probe sends a triggering signal to the receiver, and the receiver transmits it to the machine tool, consequently the present coordinates of each axis of the machine tool are recorded automatically. Finally measurement results are calculated according to the coordinate records of related points.



§≡≡≡≡  Applications  ≡≡≡≡

◆ Coordinate setting: set datum point of workpiece, correct coordinate system of workpiece. 
◆ Align workpiece: Inspect whether the workpiece is placed accurately, and whether the workpiece is deformed by force of clamping fixture.
◆ Dimension measurement: stage height, length, diameter
◆ Position measurement: holes distance, perpendicularity, angle, etc.
◆ Curved-surface measurement: blade shape, mold surface, complex shape
◆ After-processing inspection: Find the over-tolerance, correct tool compensation
◆ Check whether the workpiece is placed

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