1.1Basic page introduction
1.1.1 Programming page
The following figure is the home pageof bending machine control system programming.
1.1.2 More Data Settings
Click on the icon on the main page of programming More, you can acess more data settings pages:
Table1-1 Introductionof Parameters(1)
Parameter | Definition | Remarks |
|---|---|---|
Plate thickness | Thickness of individual workpiece | Cell |
Back shield concession | The concession distance of the shield(X-axis)can be set at each step. | Enter the backoff distance in the back field |
Return distance/time | The return distance/time of the upper die (Y axis)can be set at each step, and the timing starts at the speed change point. | If the upper module has not reached the upper dead point after this time,it will stop moving upward and enter the next step in single or continuous mode. |
Holding time | The time from the speed change point to the start of the pressure relief of the machine (set at each step) | Cell |
Job count | Number of currently processed jobs/total set jobs Indicates unavailability | Cell |
Bending width | Width of processed sheet metal | Cell |
Bending pressure TON | Pressure applied in bending | Optional |
Deflection Compensation | Compensation of Deflection and Deformation in Workpiece Processing | Optional |
Large circular arc | Enabling Big Arc Function | Cell |
Bridge frame | Enabling Bridge Frame Function | Cell |
Click to display more data settings Different working modes correspond to different pages. The following is the interface corresponding tothe click mode:
Table 1-2 Introduction of Parameters (2)
Parameter | Definition | Remarks |
|---|---|---|
Pointing Pressure Holding Time/No Pressure Holding Time | If effective,stop slowly and relieve pressure until the holding time,and do not return automatically after the relief is completed. | If the pedal is released after stepping down to the speed change point, the device will automatically relieve pressure. |
X-axis incremental/absol ute | Selection of X-axis position motion mode | Cell |
Variable Speed Position | Slider position changed from fast down to slow down | Cell |
Top dead center position | Highest point of slider stroke | Cell |
Clamping point correction | Compensation according to the position of clamping point | Cell |
Pause time (clamping point) | The pause time when the slider changes from slow down to clamping the workpiece | After the X-axis retreat positioning is completed (or after the pause time), continue to slow down. If the pause time is set to 0, it will continue to slow down and bend. |
Pause time (fast turn slow) | The pause time of the slider from fast down to slow down (i.e. to the speed change point) | Slow down after this pause time. If the pause time is set to 0, the slider will go down quickly and slowly. |
1.2 Parameter setting
Click on the menu icon on the main page of programming Menu, Select "Parameter Settings" from the pop-up menu to enter the parameter settings page.
Operational parameters can be configured on this page. Please refer to the following steps for parameter setting.
1.On the main page of parameter setting,you can choose YV¹~YV5 valve output configuration,interface language and working mode.
There are four motion states of slider:fast down,slow down,return trip and pressure relief. The output of four motion states may be different for different models,so the output configuration (YV1～YV5)is needed here.
Interface Language Selection: Chinese and EN(English)Options
Choice of working mode:Point movement Single time continuity
Table 1-3 Working Model
Pattern | Explain |
|---|---|
Point motion mode | Click start(or step on a foot) Start the program, step down the slider and move downward, release and stop. Step on the slider and move upward, then release and stop; when the speed change point is released, the X-axis back stop material will return to the original, so that it is easy to bend the same step again. Automatic step change of support system in point mode. |
Single mode | Click start(or step on a foot)Start the program, step on the foot, slide down and press down to the bottom, after the holding time arrives, automatically return to the next step. |
Continuous mode | Click start(or step down once) Start the program, step down, slide down and press down tothe bottom. When the holding time arrives, it will automatically return to the next step, so that the cycle can be completed until all the steps are completed. In continuous mode, continuous intervals can be set on more data settings pages |
<Remarks>
1)Point mode is used in calibration, single mode is used in normal operation, and continuous mode is used in testing machine.
2)In the "Manual Moving" and "XY/R Axis Navigation"teaching pictures,the mode automatically changes to the slow point mode, after exiting these pictures, it will automatically switch to the original mode.
3)If you first step on the switch,then step on the switch is invalid;unlock the switch, then step on the switch
If the program does not start, step on it for the first time（Or press on the screen start）It will start the program and step down again before moving downward.
In single mode or continuous mode, the slider moves upward.If the return time is valid and the return time arrives (the slider has not reached the upper dead point), the slider will no longer move upward and enter the next step.
2、Click Pgon on the page will pop up a dialog box prompting users to login,please enter the correct password (0313),and then click Pgon again to start setting parameters:
X/Y/R Axis Settings
On the parameter setting page,the operator can set the motion parameters of the XY axis (Y2/R axis is optional),as well as the pressure and slider parameters in the bending process.
Click "R Axis is valid" to enable the R-Axis, as shown in the following figure:
After that, the R-axis related information and setting icons are displayed on the programming page.Clicking on the red box, the gear parameters ofthe gearfinger can be set. It is convenient to select different gear according to the workpiece processed.
Pressure setting
Operators can record the bending pressure and deflection under different electrical signals on the'-pressure-'page. The system will calculate the linear relationship between the bending pressure and voltage, deflection and voltage according to the internal algorithm, so that the actual operation can be easily compensated according to the specific input pressure and deflection values. Given that the simulated values of pressure and deflection are set on the Machine State page, see Chapter 1.3 Machine State for details.
Slider setting
Operators can set relevant parameters on the'-slider-'page and set the grating ruler according to the actual situation, as shown in the following figure:
<Remarks>
1)Pressure relief time:The return journey begins after the duration of pressure relief arrives.
2)Oil pump automatic shutdown delay: When the machine is not operated,the oil pump automatically shuts down after the time arrives. Default:1800 seconds, settingrange: 300-3276.7 seconds.
1.3 Machine state
Operators can access machine status pages in a varietyof ways.
As shown below, on the main programming page, click on the icon state to enter the machine status page
As shown below,you can enter the machine status page by manually moving the page and clicking on the icon state on the left
Click state to enter the machine status page
On the machine status page,the operator can observe the input/output signals of the system and analyze the possible problems more conveniently.
In the output window,click Forced,and the lower window will display the functional control status of each output port,as shown inthe following figure:
If the box corresponding to the input/output command shows green, it indicates that the signal or functionis normal
Pole:Set the maximum height of the rise,which can be set only after the grating ruler is selected.
1.4 Manual movement
Operators can move Yaxis (slider),X axis (back shield)or R axis (finger shield)in manual mode
1.Click on the menu icon in the main page of programming,click on "Manual Move"in the pop-up menu,and enter the manual page (to set the coordinates of XY/R axis reference point,you need to enter the password "0313"):
2.Setting up X-axis reference points
Use the measuring too to measure the length of a reference position (from clamping point to back shield),and then write the measured value in the settings above the back shield icon
3.Setting up the reference pointof Y-axis
Step on the foot and pressitdownto the bottom.Then use the measuring toolto measure the length of a reference position (from the bottom ofthe lower die to the top of the upper die).Finally,write the measured value in the settings above the slider icon 4.Setting Reference Points for R-axis
The R-axis is used to select the finger shield,and the X-axis and R-axis can cooperate with the movement to prevent the collision of the die.Operators use measuring tools to measure the distance between the working plane of the lower die and the lower plane of the stop finger,and write the measured valuesin the above settings
5.In the above screen-/++for manualslow/fast movement,click the "move" button on the correspondingpage,the XY/R axis will move the specified distance at the set speed,and then click the button again to stop the movement.
◆Set the page at the reference point of the selectedaxisand hold it down+, The motor of the axis moves slowly in the direction of increasing count.
◆Set the page at the reference pointof the selected axis and hold it down-, The motor of the axismoves slowly in thedirectionof subtraction.
◆Set the page at the reference point of the selected axis,pressand hold ++,and the motor of the axis moves rapidly in the direction of increasing count.
◆Set the page at the reference point of the selected axis,press and hold --, and the motor of the axis moves rapidly in the direction of subtraction.
While moving the axis,the current value of the coordinates of the XM/R axis changes accordingly until it moves to the appropriate position
Attention: This system has the function of setting position limit.If the given position exceeds the set minimum/maximum limit, the system will prompt "the given position exceeds the limit"and invalid start whenever it is pressed.
1.5 Mould management
The numerical control systemautomatically calculates the programming value of X/Y/R axis according to the selected die, bending angle and bending length
Die parameters are the basis ofsystem calculation and must be accurate
1.5.1 Upper die editing
1. Click on the module icon page on the programming page and enter the die editing page.
2.As an example, the upper model in the following figure is input (alpha:angle of upper model, r.chamfer, h:height of upper model)
3.After the data input is completed,click on the input field next to it and name the die according to its own naming rules.The current model can be saved with the given naming. (Up to 30 upper model information can be saved)
4.After completing the above steps,the upper model data will be automatically savedfor subsequent use.
5.Click on the top lcon, Then click or you can browse saved die information.
6.Click on the top Icon Return to the programming page.
1.5.2 Lower mode editing
1、Click on the icon on the edit page, Enter the die editing page as follows:
2、For example, input the lower mode data (Ve:width of opening, alpha: angle of opening, r.chamfer, h:height of lower mode)
3.After the input of the lower model data is completed, Click next input field, Name the die according to its own naming rules,and save the current lower diewith a name (up to 40 lower die information can be saved)
4.After completing the above steps,the lower model data will be automatically saved for subsequent use.
5.Clickon the icon below,Then click orL you can browse saved moulds.
6.Click Icon return to the programming page.
2.Examples of application
Combining panel and machine tool operation,this chapter introduces how to process a workpiece which needs multiple bending with a specific example.The XY axis position and motion direction sketches are as follows:
2.1 Example explanation
This example is illustrated by programming the following products:
<Remarks>
1)If you encounter anemergency or need to return during the operation, you can click the button ↑ to return to the top dead point.
2)If the backstop concession distance is set,the backstop concession begins after the clamping time arrives.
1、Select the lower die openingVe
Referring to the table below, if the thickness of the bendingplate is 2 mm, the groove with 6 times the width of the plate thickness, that is, the groove with 12 mm of the bending groove Ve, should be selected.
Criteria for choosingthe opening ofthe lower die
Workpiece thickness T（mm） | 0.6~2.5 | 3~8 | 10~50 |
Opening width of lower die W（mm） | 6T | 8T | 10T |
2、Bending step
Step 1:Bending angle is 90.00degrees,bending length Lis 60.00 mm
Step 2:Bending angle 120.00 degrees,bending length L 80.00 mm
3、Choice of working mode
Three working modes are available: point,single and continuous.
Theseworking modes all support automatic step change, which will automatcally enter the next step after the first step of bending is executed.
<Remarks>Please refer to the section"1.2 parameter settings"for details of the relevant working modes.
2.2 Choice of working mode
1、turn on electricity
First,turn on the main power switch on the cabinet,and then start the oil pump(the machine does not operate at this time).
<pay attention>Do not press the emergency stop button,otherwise the machine can not operate and the oil pump can not start.
2、Display Panel Foundation Settings
1）Click on the icon on the main page of programming and input the thickness of the board (2mm)
2）Click on the die Icon or，Edit the die (top/bottom) on the pop-up page.
The upper model is edited as follows:
The following model is edited as follows:
3)Click on the icon More on the main programming page to entermore bending data:
<Remarks>For more details, please referto the section "More Data Settings Page 1.2.2".
3、Calibration by Manual Moving Mode
Operatorscan move Y axis (slider),X axis (back shield)and R axis (finger shield)for position calibration in manual mode.
1)On the programming page,click on the menu icon and select "Manual Move" from the pop-up menu to enter the manual page.
2)Click-/++ or More button to move the selected Yaxis (slider)/X axis (back shield)/R axis (shield finger). When each axis is moved, the current value of the axis coordinates changes accordingly, and the movement can stop until it moves to the appropriate position.
3)Setting the reference point for the X-axis
Use the measuring toolto measure the length ofa reference position (from clamping point to back shield),and then write the measured value in the settings above the back shield + icon
Amethod of measuring thelength of the backstop from the clamping point to the backstop: after X-axis moves any distance,take a piece of sheet material and place it between the upper and lower dies,push the sheet materialto hold backthe backstop atone side;then step down, make the upper die move downward to just press the sheet (a little strength but the sheet material is not deformed). Finally, step on the foot to make the upper die return to the upper dead point, and measure the impression marks and the small plate. The vertical distance on the side of the back shield is the length from the clamping point to the back shield.
4）Setting the reference point of Y axis
Use the measuring tool to measure the length of a reference position (from the bottom of the lower die to the top of the upper die), and then write the measured value in the settings above the back block icon .
A method of measuring the distance from the bottom of the lower die to the top of the upper die: step on the foot to make the upper die return to the upper dead point, move the Y axis for a certain distance at will, step on the foot, make the upper die move downward to the slider position (that is, the position can no longer be downward), step on the foot and do not put down, and finally measure the vertical distance from the bottom of the lower die to the top of the upper die.
Appendix:
Analysis and Treatment of Common Problems
Table B-1 Common Problems Analysis and Treatment
Problem description | Reasons and Solutions |
|---|---|
Oil pump can't start | Whether the emergency stop button is loosened or not. Whether the feedback signal of the oil pump is normal or not. The oil pump icon on the touch screen needs to be pressed for 3 seconds. |
Stop after start of oil pump | Short self-closing delay of oil pump Loosening of coil of contactor Emergency stop of loosening feedback signal of oil pump |
Servo communication is not good | Is the communication line between CPU and backstop servo, servo and servo well connected? |
XY Axis Servo (Manual) Can't Move | Is Servo Communication Normal Whether the servo alarms (if the alarm can not be cleared, it needs to be re-energized). Whether the motor wires are connected or not. |
Y-axis servo (manual) cannot be moved | The upper die is raised to the top (the upper dead point should have a signal) |
When the parameters are set, there is no response by pressing "START" or pedal switch on the touch screen. | Whether the emergency stop button is loosened or not. Whether the oil pump is open or not. Whether the servo system is normal or not. Whether the upper die has been raised to the top (if the alarm cannot be given, it needs to be re-energized). |
Hydraulic brake does not move | Whether the emergency stop button is loosened or not Whether the oil pump starts or not Whether the gate is configured (setting parameters page on touch screen). |
Abnormal motion of slider | Check whether the setting of pressure holding time "pressure relief time" and "return time" is reasonable. Whether the transmission point and dead point information is normal. Start-up of Oil Pump Release of emergency stop switch Hole-in hand moving screen (if XY axis is not debugged at this time) |
The bending angle error of the first cutter is very large（>5°） | Whether the cutter die is flat or not. Whether the height measured after depressurization is consistent with the height calculated by the system, if it is not consistent to re-axis calibration. Check whether the set parameters of the cutter die and the thickness of the plate are correct. Whether the accuracy of the selected screw (belt) is insufficient. Whether the thickness of the workpiece plate and the abrasive tool selected are reasonable or not, the first point in the section "2.1 Example Explanation" of the Selection Rules Reference Chapter The workpiece is made of steel with great elasticity, which needs angle compensation. |
X-axis automatic mode positioning is not in place | Whether the installation of the screw rods on both sides of the bending machine is not parallel leads to a fixed position of the motor; the X-axis can be moved throughout the manual movement to verify the existence of this problem. |
Wide Bending Angle Error | Check whether the machine pressure is enough |
Calibrate the angle, change a piece of sheet metal after the bending angle is not right | The bending parameters of sheets with different materials and widths are different, which should be set and compensated separately. |
Next Step Sequential Bending Angle Error | Whether the number of abrasives used in the next step has changed. |
Incorrect Angle Compensation Value | The safety height of the lower die has been exceeded, and the system automatically limits ([bending depth+ compensation] > minimum height). |
In this interface,the operator can clearly and intuitively choose the shape of the bridge workpiece that they need to bend.The red part is the part that needs to bend.Enter the size in the input box.Then the workpiece bridge can be bent.
Ordinary bending machine system can only be calculated by the operator of each bending size, and then step by step bending,there is a large error rate,and waste a lot of time.
Increased the choice of a knife,two knife,three knife three forms,in two or three knife case can choose to fold one
side, can also be symmetrical folding on both sides, by the user free choice, easy to process different size of the workpiece.
There are automatic and semi-automatic mode optional, flexible use, in the automatic mode only need manual start, place materials, step on the foot, bridge process automatic operation, drive the plate to the specified bending position, automatic bending, after the completion of processing can automatically exit the plate from the workbench, to be completed after the automatic positioning to the first knife starting position, save labor costs.
A cylinder is added to drive the support plate to turn up, freeing workers' hands and realizing one person to complete the operation independently. In bending engineering, the front or back air support will be automatically used according to the processing conditions. In the last step, the front or back air support can be selected for bending.
The stripping detection function is added, and a proximity switch is added to realize the stripping detection through the presence or absence of proximity switch signal. In the automatic operation of bending, the detection of whether the material and the rear material suction in the predetermined position, after the pull is not detected signal will be forward material search; When pushing forward, if the signal is not detected and reaches the predetermined bending position, it will prompt that the dragging signal is not detected. After manual rectification, click the "OK" button to start bending.
Single side height and lower width can be compensated separately or at the same time. Only input the length to be compensated can be automatically calculated by the system to compensate the positioning distance and improve the bending accuracy.
The positioning distance can be set. After the end of the last step of bending, it can go to the position of the first knife plus positioning distance, which is convenient for the user to load and unload the plate and improve the bending efficiency.
Operation process:
Open the bridge function, the input plate thickness, if the Angle has slight deviation can be adjusted by Angle complement, according to the graphic input workpiece processing size; Blanking length is calculated automatically according to the input workpiece processing size; Choose one knife, the one that will fold the symmetric plane after the first knife, choose two knives, will fold the two knives of one side first, and then fold the symmetric plane, choose three knives; Select a single automatic step, step down, after the first knife folded back to loosen the foot, the rear does not need to step on the foot will be automatically executed; The last step of bending can choose whether to need air drag to assist; The left high complement and the right high complement compensate the height of the left and right sides of the workpiece, and the wide complement compensate the width of the bottom surface.
