Skip to content
MachineMfg.com
  • Home
  • About
  • Blog
  • Free Calculator
    • Steel Weight Calculator
    • Metal Weight Calculator
    • Sheet Metal Bending Calculator
    • K Factor Calculator
    • Press Brake Tonnage Calculator
    • Press Tonnage Calculator
    • Waterjet Cost Calculator
  • Contact
Search
MachineMfg.com
  • Home
  • About
  • Blog
  • Free Calculator
    • Steel Weight Calculator
    • Metal Weight Calculator
    • Sheet Metal Bending Calculator
    • K Factor Calculator
    • Press Brake Tonnage Calculator
    • Press Tonnage Calculator
    • Waterjet Cost Calculator
  • Contact
  • Home
  • Docs
  • Operation of CNC press brake

Press Brake FAQs

  • How to adjust the size of the press brake?
  • How to adjust the angle of the press brake?
  • How to compensate deflection of press brake machine?
  • The press brake can’t go up and down. What’s the matter?
  • How to bend an arc with a press brake?
  • Comparison between grating ruler and magnetic grating ruler of press brake
  • Up and down moving type of press brake, which is better?
  • What is the problem that the downward speed of the hydraulic press brake suddenly slows down during operation?
  • The bending angle of the press brake is different
  • How long to change the hydraulic oil of the press brake?
  • List of hazard sources and risk assessment form of press brake
  • List of minimum bending radius of common metal materials
  • How many press brake controllers are there? How to choose?
  • How to choose between open loop and closed loop press brake?
  • What is a three cylinder press brake?
  • What is a four cylinder press brake?
  • What is the difference between three cylinder press brake and two cylinder press brake?
  • Why can’t the press brake machine return?
  • What are the functions of three motors of ordinary press brake machine?
  • What are the functions of the three relief valves on the press brake?
  • What if the press brake doesn’t go up when it comes down?
  • The press brake is normal up and down, but it is not pressurized!
  • Where does the number of backgauge axis (X,Y,Z,R) of press brake refer to?
  • How does the X-axis of press brake return to the origin?
  • Why the Y-axis of press brake does not return?
  • How many times to bend a large arc and how to calculate the bending angle?
  • How to adjust the stroke of the press brake?
  • The pressure at both ends of the hydraulic press brake is not the same. How to adjust it?
  • The cylinder stroke on both sides of the press brake is different. How to adjust it?
  • How to program CNC press brake?
  • How to adjust the downward speed of the press brake?
  • How to calculate the size and angle of sheet metal bending?
  • How to calculate the nominal pressure required by the press brake according to the thickness and length of the steel plate to be bent?
  • How to calculate the unfolded dimension of sheet metal bending?
  • How is the bending coefficient of sheet metal calculated
  • What is the relationship between bending factor and plate thickness, bending angle and bending radius?
  • How to calculate the bending coefficient of sheet stainless steel?
  • How to calculate the tolerance of sheet bending machine?
  • What is the reason why the middle of the folded workpiece is bent?
  • Why can’t the hydraulic press brake go up and down?
  • How can the angle of the press brake be adjusted if it cannot be pressed at right angles
  • How to fold different angles with a press brake?
  • How to disassemble the oil cylinder of the press brake?
  • The press brake cannot be started
  • How to eliminate the bending indentation of stainless steel press brake die
  • How to adjust the downward speed of the press brake machine?
  • What’s wrong with the unstable pressure of the press brake?
  • Why can’t the press brake machine rise?
  • What about the deformation of the press brake ram?
  • How does press brake bend a cone?
  • How to use press brake to fold a large circular arc?
  • What’s the matter with the slow down speed of the press brake?
  • What if the downward speed of the press brake is fast?
  • The downward speed of the hydraulic press brake becomes slow and the upward jitter!
  • What happened to the hydraulic oil leakage on one side of the press brake?
  • The two cylinders of the press brake are not synchronized
  • What if the workpiece interferes with the press brake machine?
  • Can the press brake machine fold the U-groove?
  • Environmental requirements of CNC press brake
  • What happened to the abnormal noise of the press brake oil pump motor?
  • A simple method for electric heating of hydraulic oil of press brake
  • What’s wrong that the press brake punch can’t lower to the bottom?
  • How to select the size of the lower V groove for sheet metal bending according to the plate thickness
  • How to break the lock of the press brake?
  • How to determine the bending radius of sheet metal?
  • How to solve the problem that the press brake pressurizes too slowly? How to pressurize quickly
  • What hydraulic oil does the press brake use?
  • How many years to change the press brake hydraulic oil?
  • What determines the sheet metal bend radius?
  • Stress relief of stainless steel 304 after bending
  • What are the corresponding protective devices of the press brake?
  • How to adjust CNC press brake?
  • What is the reason for the noise of press brake?
  • How to solve the oil leakage of oil cylinder of the press brake?
  • How to repair the scratches on mirror stainless steel?
  • How much can the bending tolerance of the press brake be controlled?
  • What is the minimum bending size of the press brake?
  • Where is the pressure relief after pressurization of the press brake adjusted?
  • How to choose electro-hydraulic servo synchronous cnc press brake?
  • How to fold a semicircle with a pres brake?
  • How is the inner radius of sheet metal bending determined?
  • How to calculate the bending radius of sheet metal?
  • How to set bending radius and bending deduction in SolidWorks?
  • The most complete sheet metal bending allowance table
  • How to set the K factor, bending deduction, bending allowance and bending calculation in SolidWorks? What’s their relationship?
  • How does the press brake accurately control the bending angle?
  • What is the reason why the blade of press brake can’t rise?
  • Which axes do the 3 + 1 axis and 4 + 1 axis of the press brake refer to respectively?
  • What does the Y value limit of press brake mean?
  • Function of time relay in press brake circuit
  • What is the difference between electro-hydraulic servo press brake and torque synchronous press brake?
  • What hydraulic pump is generally used for press brake?
  • How do you know what material the lower die of the press brake is?
  • When the press brake steps up, it cannot stop and automatically slides down
  • How to understand the N + 1 axis of press brake machine?
  • How to change the tool of press brake?
  • What material is generally used for press brake dies? What is the hardness?
  • Do you need to grind the top punch of press brake?
  • How to level the tools of press brake?
  • What is the problem that the press brake tools are not in a straight line?
  • How to repair the crack of stainless steel bending tool?
  • How to select the material of press brake die?
  • What is the problem of automatic tool drop of ordinary press brake?
  • How does the press brake go down slowly?
  • What is the difference between the acute punch and gooseneck punch of press brake?
  • The press brake tool has dents. How to repair it?
  • What is the quenching hardness of general press brake die?
  • Calculation formula of press brake die price
  • What is the general angle of the press brake dies?
  • How to select arc radius punch and die of press brake?
  • How to calculate the bending angle of the press brake?
  • What are the factors that determine the service life of press brake die?
  • How to select the top punch of the press brake?
  • Golden section size of press brake dies
  • Anti rust treatment of press brake dies
  • Comparison chart of press brake die combination
  • The press down pressure of the press brake machine is not enough, but the rising pressure is normal

Press Brake Hub

  • What is CNC press brake and it’s working principle
  • Brief introduction of synchronous system of CNC press brake
  • Workpiece bending diagram of press brake
  • Installation of CNC press brake
  • Operation of CNC press brake
  • Adjustment of bending parameters of CNC press brake
  • Bending accuracy of CNC press brake
  • Safety protection of CNC press brake
  • Press brake punch and die installation
  • Adjustment of CNC press brake
  • Hydraulic oil of CNC press brake
  • Lubrication of CNC press brake
  • Repair and maintenance of CNC press brake
  • Main structure of CNC press brake
  • Explanation of CNC press brake axis
  • Operating environment of press brake
  • Press brake punch and die selection
  • Adjustment of press brake’s mechanical part
  • Causes and solutions of common faults of press brake

Guillotine Shear Hub

  • Purpose and characteristics of the guillotine shear
  • Main structure of the guillotine shear
  • Hydraulic system of the guillotine shear
  • Lifting and installation of the guillotine shear
  • Lubrication of the guillotine shear
  • Operation and adjustment of the guillotine shear
  • Safety and maintenance of the guillotine shear
  • Guillotine Shear: Common Faults and Troubleshooting
  • Accuracy check of the guillotine shear
  • Home
  • Docs
  • Press Brake
  • Press Brake Hub
  • Operation of CNC press brake

Operation of CNC press brake

Table of Contents
  • Startup process and requirements
  • Shutdown process and requirements
  • Introduction to button operation station
  • Introduction to control button operation panel of electric cabinet
  • Power
  • Operation and stop of oil pump motor
  • Selection of operation mode
  • Start

Startup process and requirements #

Press brake startup process and requirements

Shutdown process and requirements #

Shutdown process and requirements

Introduction to button operation station #

The button operation station is a mobile operation station, as shown in the below Figure.

button operation station

SB2: emergency stop button.

Press this button, the whole machine will lose power, and the ram will stop at the current position immediately. It is generally used in case of emergency.

SB6, SB7: left (right) two-hand operation button

Used in conjunction with the selection switch

SB9: ram up button.

Press this button to move the ram up to the top dead center position set by the system.

S1: foot switch

Switch for ra up and down

Introduction to control button operation panel of electric cabinet #

The control button operation panel of the electric cabinet is shown in the following Figure.

operation panel of electric cabinet

SB4: start button of main oil pump motor.

SB3: stop button of main oil pump motor.

SB5: machine preparation button.

HL4: machine preparation indicator.

HL1: machine tool power indicator.

SA2: machine operation mode selection switch. It has four operation modes for users to choose from.

SA1: machine control power key switch, point to 0 to turn off the control power; Point to 1 to turn on the control power

SB1: machine emergency stop button. Press this button, the whole machine will lose power, and the ram will immediately stop at the current position. It is generally used in case of emergency.

Power #

Close the main power switch QF (the operating handle is above the electrical cabinet door), the power indicator is on, and the main circuit is powered!

Turn the key SA1 on the operation panel to position 1, and the control circuit is energized.

Operation and stop of oil pump motor #

After the power supply is ready, press the SB4 button, and the main oil pump motor can complete the “Y” start and turn to “△” operation by itself.

Please note that the steering should be consistent with the direction mark.

When stopping, just press the SB3 button, and the oil pump motor will be powered off and stopped.

Note: when the machine is used for the first time or for the first time after it has not been used for a long time, be sure to inject hydraulic oil into the oil pump before starting the machine.

Selection of operation mode #

There is an operation mode selection switch “SA2” on the operation panel. By changing the position of the switch, the following operations can be carried out on the machine:

Adjustment (turn the “SA2” switch to the “SA2-3” position)

Press the “SB6” and “SB7” buttons on the operation station with both hands at the same time, the ram can make a rapid downward movement, and the ram stops at the speed change point.

At this time, the foot switch “S1” can be used to continue the operation, and the ram moves down to the bottom dead center at the working speed.

Note:

  • Before the ram reaches the speed change point, if one of the two-handed operation buttons (SB6, SB7) is released, the ram will return immediately. To restart, you must release the other button, and then press the two buttons at the same time.
  • Once the ram has passed the speed change point, release the foot switch “S1” and the ram will stop immediately. Re operating the foot switch “S1” will make the ram continue to go down.

Cycle hand and foot operation (turn the “SA2” switch to the “SA2-4” position)

Press the “SB6” and “SB7” buttons on the operation station with both hands at the same time, the ram will move downward quickly, and the slider will stop at the speed change point.

Change the foot switch “S1” operation, the ram moves down to the lower dead center at the working speed, and automatically returns to the upper dead center after the lower dead center stops for a certain time, and the slider movement stops.

Note:

  • When the ram does not reach the shift point, if one of the two-hand operation buttons (SB6, SB7) is released, the ram will immediately return to the top dead center. In order to restart, the other button must be released, and then press the two buttons at the same time
  • Once the slider has changed speed, release the foot switch “S1” and the ram will stop immediately. Re operating the foot switch “S1” will continue to move the ram downward.
  • Press any one of the emergency stop buttons “SB1-SB3” to stop the return movement.

Cycle manual operation (turn the “SA2” switch to the “SA2-1” position)

Press the “SB6” and “SB7” buttons on the operation station with both hands at the same time, and the ram will make a rapid downward movement. When the ram moves to the speed change point, it will automatically turn to the lower dead center, and automatically return to the upper dead center after the lower dead center stays for a certain time, and the ram movement stops.

Cycle foot operation (turn the “SA2” switch to the “SA2-22” position)

Pedal down switch “S1”, and its ram movement is the same as above.

Start #

After starting the machine, you must press the SB5 button (preparation indicator light goes out), otherwise all operations of the machine will be invalid.

Related:

  • Brief introduction of synchronous system of CNC press brake
  • Repair and maintenance of CNC press brake
  • Causes and solutions of common faults of press brake
  • Main structure of CNC press brake
  • What is CNC press brake and it's working principle
What are your Feelings
Still stuck? How can we help?

How can we help?

Updated on October 5, 2021
Installation of CNC press brakeAdjustment of bending parameters of CNC press brake

Powered by BetterDocs

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Table of Contents
  • Startup process and requirements
  • Shutdown process and requirements
  • Introduction to button operation station
  • Introduction to control button operation panel of electric cabinet
  • Power
  • Operation and stop of oil pump motor
  • Selection of operation mode
  • Start
  • Blog
  • Wiki Library
  • Subscribe
  • About
  • Contact

Privacy Policy | Terms & Conditions | HTML Sitemap

Copyright © 2023 MachineMfg

Get Free Quote