Joy Technology Co.,Limited

SMT Placement Machine sensor models and feature

(Domestic sensor), the more integrated, the higher the degree of integration, if the sensor failure will affect the normal operation of the entire device, so learn more about the function of the device
And the role of sensors for determining the source of the failure of the machine is very important, the role of different sensors have different, the following Beijing-British technology technicians to everyone
Introduce separately

Sensor good or bad gift:
1, two sensor status (LED lights or LED lights off)
2, through the multimeter to determine whether the correct working power (PIN1 and PIN3, 24V)
3, in the state changes, the signal voltage is changed (between PIN2 and any terminal)

Look at the details of the analysis:

 Common origin limit protection for all axes
  (The same series according to the different side of the positioning often open normally closed line long line short subdivision)
   Panadac P914 Series (914 914A 914B 914C 914D)
    Unilateral screw vertical positioning Table Y Table Pin DS / MS / VS MT / VT
   Panadac P921 series
    Bilateral screw vertical positioning X Y ZL / ZR (ZA / ZB)
   Panadac P923 series
    Bind the head screws parallel to the Head NumberDetect Sensor
   ML negative limit sensor
     P921B (X Y Z)
     PL positive limit sensor, OR origin sensor
    P921 (X Y Z)
     OS origin slow sensor

   Testing PCB board with Sensor
   P916 series with amplifier equipment used in Table
   P917 series with amplifier equipment used in Table
   P919 series comes with amplifier equipment used on the transmission track

  VS / MS / DS Protection Sensor P922M
   Adjustment of Sensor Amplifier (922)

  1, Set TUNING VR to CH. To be adjusted.
  2, Select NON WORK with no component.
   Long until the green LED flashes set to be effective
  3, Select WORK with a component.
   Long until the red LED flashes set to be effective
  4, Set TUNING VR to "RUN".
  Mark sure that the green LED is lit and the red LED is not lit with no component.
  6, Mark sure that the green LED and the red LED are lit witha component.
  * P922S set up as above. 922M A generation aperture line, 922S A generation aperture line.

  Detect Nozzle with Sensor
   P916C-S1720
   The use of Panadac 922M Ⅱ amplifier settings above

  Magnetic Sensor for Cylinder Detection
     Table backup unitupper / lower limitsensor TOH
     Loader / unloader rising / loweringsensor D-B51
     Stopper risingsensor CS-3H

  Laser Safety Protection Sensor
  E3L-2LRC4 (hair) E3X-A11 (close)
   P920L (hair) P920D (close)

  Safety switch Sensor
  Limit Safety Switch Sensor V-215-1C6 (X Y) D4B-2A11N (Z)
   XEML X-axis negative limit safety switch
   XEPL X-axis positive limit safety switch
   YMSL Y-axis negative limit safety switch
   YPSL Y-axis positive limit safety switch
        ZMSL Z-axis negative limit safety switch
   Safety Door Switch Sensor AZ16-02-ZVRK


After reading these, there are some basic understanding of the sensor, and then sum up the commonly used sensor type,
For reference, more SMT accessories and types can consult Beijing British technology:

1) Pressure sensor
Mounter, including a variety of cylinders and vacuum generators, air pressure have certain requirements, lower than the pressure required when the device
, The machine can not be normal operation, the pressure sensor always monitors the pressure changes, once the exception, that is timely alarm, remind the operator and
When processing.

(2) negative pressure sensor
Mounter nozzle pick-up by negative pressure components, which consists of negative pressure generator (jet vacuum generator) and the vacuum sensor. negative
Insufficient pressure, will not be able to absorb components, feeders without components or components stuck in the packet can not be sucked, the nozzle will not absorb the element
Pieces, these circumstances will affect the normal operation of the machine. Negative pressure sensor and always monitor the negative pressure changes, there can not absorb or suction yuan
Device conditions, it can alarm in time to remind the operator to replace the feeder or check suction nozzle negative pressure system is blocked.

(3) position sensor
PCB transmission positioning, including the PCB count, patch head and table movement in real-time detection, the auxiliary body movement, etc.
There are strict requirements on the location, these locations need to be achieved through various forms of position sensors.

(4) image sensor
Mounter working status of the real-time display, the main use of CCD image sensor, which can capture all the necessary image signals, including
PCB location, device size, and computer analysis and processing, the chip head to complete the adjustment and patch work.

(5) laser sensor
Laser has been widely used in placement machines, which can help determine the device pin coplanarity. Shenzhen Mounter when the device under test
To the laser sensor monitoring position, the laser beam emitted to the IC pins and reflected to the laser reader, if reflected back
The same beam length as the emitted beam, then the device is coplanar qualified, when not the same, due to pin upturned, so that the reflected light beam longer
The laser sensor thus identifies the device pin as defective.
Similarly, the laser sensor can also identify the height of the device, which can shorten the production preparation time.

(6) area sensor
Mounter at work, in order to patch head safe operation, usually in the patch head movement area with sensors, the use of photoelectric
To monitor the operation of the space to prevent foreign objects to bring harm.

(7) Component inspection
Component inspection, including feeder feed and component type and accuracy checks. In the past only used with high-grade Mounter, now
In the universal SMT machine is also widely used. It can effectively prevent the components misplaced, misplaced or not working properly.

(8) patch head pressure sensor
As the speed and accuracy of the patch increase, the requirements for the "suction and release force" of the patch head to place the components on the PCB are higher and higher,
Is commonly referred to as "Z-axis soft landing function." It is achieved through the load characteristics of Hall pressure sensors and servo motors. When yuan
Pieces placed on the PCB moment will be shocked, the vibration can be promptly transmitted to the control system, through the control system and then feedback to the control
Chip head, enabling Z-axis soft landing function. With the function of the patch head at work, giving the impression that is smooth and lightweight, if further
Observation, then immersed in the solder paste at both ends of the same depth, which is to prevent the emergence of "erection" and other welding defects is also very beneficial
. Without pressure sensor patch head, there will be misplaced flying phenomenon.