Dual Pump

Applicable models: myCobot 280, myPalletizer 260, mechArm 270

Product image

Specifications

Suction pump: Used for adsorbing objects

Introduction

• Suction pump, that is, vacuum adsorption pump, has two suction nozzles and two exhaust nozzles for one inlet and one outlet. It is more stable than single-head suction pump. It has the advantages of simple structure, small size, easy use, low noise, and good self-priming ability. By controlling the suction pump kit as the end effector of the robot arm, the function of adsorbing objects is performed.

• Suction pump accessories: power cord x1, DuPont line x10, one-input and two-output connection line x1, Lego technology parts x several

Working principle

• When sucking objects: the air pump starts to suck air and adsorb objects and then stops, and there will be no leakage in a short time.
• When putting down the object: the electronic valve starts, the air release valve opens, and air enters the vacuum suction cup to separate the sucked object.

Applicable objects

• Paper/plastic sheets
• Flat and smooth objects
• Cards, etc.

Installation and use

• Check whether the accessories package is complete: Lego connectors, Dupont wires, double-head suction pump

Double-head suction pump installation:

Structural installation

Insert the Lego connector into the reserved socket on the suction pump:

Align the suction pump with the connector inserted into the socket at the end of the robot arm and insert it:

Electrical connection

Select the male-female DuPont wire, and insert the female end into the socket marked with pins on the suction pump box:

Male-female DuPont wire:

Note the correspondence between the DuPont wire colors and pins in the figure:

Insert the male end into the robot base pin according to the given correspondence:

280 PI wiring method

The left side is the suction pump pin, and the right side is the robot pin GND -> GND 5V -> 5V G2 -> 21 G5 -> 20

280 M5 wiring method M5 can be directly connected to the Grove 1 interface

The left side is the suction pump pin, and the right side is the robot arm pin GND -> GND 5V -> 5V G2 -> 26 G5 -> 36

python programming control

• 280-Pi version

from pymycobot import MyCobot280
from pymycobot import PI_PORT, PI_BAUD # When using the Raspberry Pi version of mycobot, you can reference these two variables to initialize MyCobot280
import time
import RPi.GPIO as GPIO

# Initialize a MyCobot280 object
mc = MyCobot280(PI_PORT, PI_BAUD)

# Initialize
GPIO.setmode(GPIO.BCM)
# Pin 20/21 controls the solenoid valve and the air release valve respectively
GPIO.setup(20, GPIO.OUT)
GPIO.setup(21, GPIO.OUT)

# Turn on the suction pump
def pump_on():
# Open the solenoid valve
  GPIO.output(20,0)

# Stop the suction pump
def pump_off():
# Close the solenoid valve
  GPIO.output(20,1)
  time.sleep(0.05)
  # Open the air release valve
  GPIO.output(21,0)
  time.sleep(1)
  GPIO.output(21,1)
  time.sleep(0.05)

pump_off()
time.sleep(3)
pump_on()
time.sleep(3)
pump_off()
time.sleep(3)

GPIO.cleanup() # Release pin channel

• 280-M5 version

from pymycobot import MyCobot280
import time

# Initialize a MyCobot280 object
mc = MyCobot280("COM3", 115200)

# Turn on the suction pump
def pump_on():
# Open the solenoid valve
  mc.set_basic_output(5, 0)
  time.sleep(0.05)

# Stop the suction pump
def pump_off():
# Close the solenoid valve
  mc.set_basic_output(5, 1)
  time.sleep(0.05)
  # The air release valve starts working
  mc.set_basic_output(2, 0)
  time.sleep(1) 
  mc.set_basic_output(2, 1)
  time.sleep(0.05) 
pump_off() 
time.sleep(3) 
pump_on() 
time.sleep(3) 
pump_off() 
time.sleep(3)