A kind of screening cover control system of chip mounting machine and method
Technical field
The present invention relates to a kind of control system of chip mounting machine, especially a kind of screening cover control system of chip mounting machine and method.
Background technology
With electronic information technology high speed development, working efficiency and stability requirement to all types of electronic products are increasingly
Height, the efficiency and stability requirement higher transmitted with information communication relevant device to information.Thus, a large amount of electronic products can basis
Signal distributions design various different metal screening covers, reduce external interference, improve electronic product stability.
There are certain scramblings, the universal chip mounter of existing market due to change in size can not all process for screening cover shape
Attachment, only part foreign latest modified chip mounter can mount.The characteristics of for screening cover Placement, do not need to as
The high yield of high speed machines, also not similar to the extensive accommodation of multifunctional patch machine, so screening cover chip mounter needs
A set of attachment control system for meeting own characteristic embodies its high stability, high-precision feature, need motion control with
Image recognition section does special optimization processing, realizes most rational design, control system is made to realize optimal control.
Thus, a screening cover chip mounter dedicated control system is designed for screening cover, to farthest discharging screen
It covers the special chip mounter efficiency of lid and precision is meaningful.
Invention content
Present invention aims at the above-mentioned problems in the prior art is solved, a kind of highly integrated control and stabilization are provided
The high screening cover control system of chip mounting machine of property.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of screening cover control system of chip mounting machine, the patch being connect including industrial master board and by communication port with industrial master board
Head control module, XY axis motion-control module, feeding control module, identification camera, the identification camera include Mark point phases
Machine, fixed camera and plug-in camera, the Mark points camera is set on the placement head that placement head control module is controlled, described
Fixed camera is fixed on screening cover chip mounter in the rack of feeding control module, and the plug-in camera is set to screening cover
On the rack of chip mounter feeding station, the industrial master board is also connect with alarm detection module,
The placement head control module includes placement head pcb board and is moved by the R axis that communication port is connect with placement head pcb board
Make module, Z axis mobile module, head signal detection module and air-powered electromagnetic control module,
The XY axis movement of the XY axis moving control module for controlling placement head, the XY axis motion-control module are moved including XY
Pcb board and the X-axis servo motor being connect by communication port with XY movement pcb boards, Y-axis servo motor, the inspection of XY motor messages
Module is surveyed, the X-axis servo motor cooperation X-axis shaft coupling, X-axis guide rail and X-axis screw realize X-motion, the Y-axis servo
Motor cooperation Y-axis shaft coupling, Y-axis guide rail, Y-axis screw realize Y-motion,
The feeding campaign of plate component is sent in the feeding control module control, and the feeding control module includes feeding pcb board and leads to
Cross the wide stepper motor of transport stepper motor, tune, feeding solenoid valve controller and track letter that communication port is connect with feeding pcb board
Number detection module, the feeding solenoid valve controller are connected to cylinder.
Preferably, the Mark points camera, fixed camera and plug-in camera are using CCD camera, the Mark points phase
Machine uses low pixel camera, and using high pixel camera, the Mark points camera identification is treated for the fixed camera and plug-in camera
The target point on board is mounted, the amendment to mounting coordinates point, the fixed camera and plug-in phase are realized by Mark points camera
The element angle of machine identification attachment component and center.
Preferably, the air-powered electromagnetic control module include vacuum pump, tracheae, patch axis, positive/negative-pressure switching solenoid valve,
Air admission valve, positive pressure pipeline, by tracheae respectively with patch axis connection, the positive/negative-pressure switching solenoid valve sets the vacuum pump
It puts between patch axis and vacuum pump, another access of the positive/negative-pressure switching solenoid valve is connected with positive pressure pipeline, the positive pressure
Pipe head is provided with air admission valve, and air admission valve can switch over the positive/negative-pressure in positive pressure pipeline, with patch
Air pressure in the switchable control patch axis of positive/negative-pressure switching solenoid valve of axis connection is closed.
Preferably, the Z axis mobile module includes Z axis servo motor, Z-axis transmission mechanism and Z axis vacuum solenoid, patch
Head pcb board sends out Z axis Serve Motor Control signal and Z axis vacuum electromagnetic valve signal, Z axis servo motor driving Z-axis transmission machine
Structure makes patch axis reach designated position, and the Z axis vacuum solenoid is connected to Z axis suction nozzle.
Preferably, the head signal detection module includes reading the Z axis origin signal of patch axis and Z axis altitude signal
Inductor and read patch axis R axis origin signals inductor, and pass through CAN bus real-time delivery and give placement head PCB
Plate.
Preferably, the R axis action module includes two R to motor, by two R to the patch of motor cross-over control
Axis, head signal detection module, placement head pcb board send out rotating signal, and R performs rotating signal to motor, confirms pcb board position
The data of acquisition are delivered separately to placement head PCB by the Mark point cameras of information, head signal detection module and Mark point cameras
Plate, industrial master board, industrial master board send out X, Y, Z-direction motor message, and placement head pcb board sends out R to motor message.
The present invention also provides a kind of control method of screening cover control system of chip mounting machine, method and step is as follows:
A. start control system, it is first determined pcb board size, by the way that wide stepper motor is adjusted to adjust transmission rail width, to reach
It is suitble to the current automatic transmission state of pcb board;
B. after starting production, the control of track signal detection module starts to detect, and after having pcb board entrance, starts transport stepping electricity
Machine transmits pcb board, detects the signal in specified region by track signal detection module, judges transmission location, specified when reaching
Behind position, stepper motor stop motion is transported, starts the control cylinder action of feeding solenoid valve controller, fixed pcb board is specified
Working region;
C. it is moved by the XY axis of XY axis moving control module for controlling placement heads:
First, it by Mark camera motions to predetermined identification position of taking pictures, opens camera light source triggering camera and takes pictures;
Then, current Mark cameras identification Mark point numbers and residue Mark point numbers are judged, if residue Mark points are more than
0, it continues to run with back to previous step, if residue Mark points are equal to 0, carries out in next step;
Finally, according to current Mark cameras recognition result, whole schools are carried out to currently mounting data by Mark point calibrations algorithm
Just, and back to control system;
D. in industrial master board in Mark point calculating process, XY axis motion-control module synchronizes X-axis servo motor, Y-axis servo electricity
Machine makes specified Z axis suction nozzle move to specified material station location, and feedback completion status gives placement head control module after reaching material erect-position;
E. placement head control module control Z axis servo motor moves to specified suction height, starts Z axis vacuum solenoid, and Z axis is inhaled
Head draws attachment component;
F. after the attachment component feeding for completing Z-direction, according to the information of corresponding attachment component, XY axis motion controls are controlled
Z axis suction nozzle is moved to specified camera position by module:
When the size of attachment component is less than 35*35mm, Z axis suction nozzle moves to plug-in camera position, takes pictures into units, preserves
Image information carries out image identification;
When the size of attachment component is more than 35*35mm, Z axis suction nozzle moves to fixed camera position and takes pictures identification into units;
G. correction of a final proof data knot is obtained to Mark point calibrations data and image correction data COMPREHENSIVE CALCULATING according to industrial master board
Fruit, returns to industrial master board, and control XY axis motion-control modules make placement head to specified mounting position;
H. after placement head reaches attachment height, Z axis vacuum solenoid is closed, opens positive pressure electromagnetic valve, vacuum is destroyed, makes element
With tin cream or red glue bond;
I. pcb board fixing device is unclamped in feeding control module control cylinder action, starts transport stepper motor, pcb board is transmitted
To going out machine.Cycle production is walked back to b.
Present invention employs above-mentioned technical proposals, have the advantages that:
This screening cover control system of chip mounting machine utilizes modularization idea, placement head control module, XY axis motion-control module and send
Dedicated pcb board is respectively provided in material control module, improves the data-handling capacity and fortune of entire screening cover Placement system
Defeated accuracy by the fixed camera for setting Mark point cameras and different accuracy and plug-in camera, improves system image identification skill
Art achievees the purpose that screening cover chip mounter is stable, accurately and rapidly mounts.
Description of the drawings
Fig. 1 is the structure diagram of screening cover control system of chip mounting machine of the present invention.
Specific embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
As shown in Figure 1, a kind of screening cover control system of chip mounting machine, including industrial master board and passes through communication port and work
The placement head control module of owner's plate connection, XY axis motion-control module, feeding control module, identification camera, the identification phase
Machine includes Mark points camera, fixed camera and plug-in camera, and the Mark points camera is set to placement head control module and is controlled
Placement head on, the fixed camera is fixed on screening cover chip mounter in the rack of feeding control module, described plug-in
Camera is set on the rack of screening cover chip mounter feeding station, and the industrial master board is also connect with alarm detection module.
In this preferred embodiment, the placement head control module includes placement head pcb board and by communication port and patch
R axis action module, Z axis mobile module, head signal detection module and the air-powered electromagnetic control module of head pcb board connection.
In this preferred embodiment, the XY axis movement of the XY axis moving control module for controlling placement head, the XY axis movement
Control module includes XY movement pcb boards and moves X-axis servo motor, the Y-axis servo that pcb board is connect with XY by communication port
Motor, XY motor message detection modules, the X-axis servo motor cooperation X-axis shaft coupling, X-axis guide rail and X-axis screw realize X-axis
To movement, the Y-axis servo motor cooperation Y-axis shaft coupling, Y-axis guide rail, Y-axis screw realize Y-motion.
In this preferred embodiment, the feeding campaign of plate component is sent in the feeding control module control, and the feeding controls mould
Block includes feeding pcb board and the transport stepper motor being connect by communication port with feeding pcb board, adjusts wide stepper motor, feeding
Solenoid valve controller and track signal detection module, the feeding solenoid valve controller are connected to cylinder.
In this preferred embodiment, the Mark points camera, fixed camera and plug-in camera are described using CCD camera
Mark points camera uses low pixel camera, and the fixed camera and plug-in camera are using high pixel camera, the Mark points phase
Machine identifies the target point on board to be mounted, and the amendment to mounting coordinates point, the fixed camera are realized by Mark points camera
And element angle and the center of plug-in camera identification attachment component.
In this preferred embodiment, the air-powered electromagnetic control module includes vacuum pump, tracheae, patch axis, positive/negative-pressure switching
Solenoid valve, air admission valve, positive pressure pipeline, the vacuum pump by tracheae respectively with patch axis connection, positive/negative-pressure switching
Solenoid valve is arranged between patch axis and vacuum pump, and another access of the positive/negative-pressure switching solenoid valve is connected with positive pressure pipeline,
The positive pressure pipe head is provided with air admission valve, and air admission valve can cut the positive/negative-pressure in positive pressure pipeline
It changes, is closed with the air pressure in the switchable control patch axis of the positive/negative-pressure switching solenoid valve of patch axis connection.
In this preferred embodiment, the Z axis mobile module includes Z axis servo motor, Z-axis transmission mechanism and Z axis vacuum electric
Magnet valve, placement head pcb board send out Z axis Serve Motor Control signal and Z axis vacuum electromagnetic valve signal, Z axis servo motor driving Z axis
Transmission mechanism makes patch axis reach designated position, and the Z axis vacuum solenoid is connected to Z axis suction nozzle.
In this preferred embodiment, the head signal detection module includes reading the Z axis origin signal of patch axis and Z axis is high
The inductor of the inductor for spending signal and the R axis origin signals for reading patch axis, and pass through CAN bus real-time delivery to patch
Head pcb board.
In this preferred embodiment, the R axis action module includes two R to motor, by two R to motor cross-over control
Patch axis, head signal detection module, placement head pcb board send out rotating signal, and R performs rotating signal to motor, confirms pcb board
The data of acquisition are delivered separately to placement head by the Mark point cameras of location information, head signal detection module and Mark point cameras
Pcb board, industrial master board, industrial master board send out X, Y, Z-direction motor message, and placement head pcb board sends out R to motor message.
In addition, being terminated with strong and weak positive pressure switching solenoid valve before the present embodiment air admission valve, pressure size is examined by pressure
Module testing is surveyed, original state is weak pressure, and weak pressure side is connected to pressure regulator valve, divides twice positive pressure(Weak pressure of blowing is pressed with strong blow), two
Road positive pressure passes through small-sized pressure reducing valve RB500-SSC4-P respectively(0.1Mpa)With pressure regulator valve R4000-15-W(0.5Mpa)By electromagnetism
Vavle switching is connected to positive pressure pipeline, and weak pressure of blowing is normal work air pressure, and strong pressure of blowing is cleaning pipeline sundries air pressure.
This atmospheric control is relatively simplely simplified by the confluence packaging harden structure where positive pressure pipeline, stomata compared with
Greatly, filtering tank is mounted on outside, and after gas circulation, air pressure is relatively stablized.
The control method of this screening cover control system of chip mounting machine, method and step are as follows:
A. start control system, it is first determined pcb board size, by the way that wide stepper motor is adjusted to adjust transmission rail width, to reach
It is suitble to the current automatic transmission state of pcb board;
B. after starting production, the control of track signal detection module starts to detect, and after having pcb board entrance, starts transport stepping electricity
Machine transmits pcb board, detects the signal in specified region by track signal detection module, judges transmission location, specified when reaching
Behind position, stepper motor stop motion is transported, starts the control cylinder action of feeding solenoid valve controller, fixed pcb board is specified
Working region;
C. it is moved by the XY axis of XY axis moving control module for controlling placement heads:
First, it by Mark camera motions to predetermined identification position of taking pictures, opens camera light source triggering camera and takes pictures;
Then, current Mark cameras identification Mark point numbers and residue Mark point numbers are judged, if residue Mark points are more than
0, it continues to run with back to previous step, if residue Mark points are equal to 0, carries out in next step;
Finally, according to current Mark cameras recognition result, whole schools are carried out to currently mounting data by Mark point calibrations algorithm
Just, and back to control system;
D. in industrial master board in Mark point calculating process, XY axis motion-control module synchronizes X-axis servo motor, Y-axis servo electricity
Machine makes specified Z axis suction nozzle move to specified material station location, and feedback completion status gives placement head control module after reaching material erect-position;
E. placement head control module control Z axis servo motor moves to specified suction height, starts Z axis vacuum solenoid, and Z axis is inhaled
Head draws attachment component;
F. after the attachment component feeding for completing Z-direction, according to the information of corresponding attachment component, XY axis motion controls are controlled
Z axis suction nozzle is moved to specified camera position by module:
When the size of attachment component is less than 35*35mm, Z axis suction nozzle moves to plug-in camera position, takes pictures into units, preserves
Image information carries out image identification;
When the size of attachment component is more than 35*35mm, Z axis suction nozzle moves to fixed camera position and takes pictures identification into units;
G. correction of a final proof data knot is obtained to Mark point calibrations data and image correction data COMPREHENSIVE CALCULATING according to industrial master board
Fruit, returns to industrial master board, and control XY axis motion-control modules make placement head to specified mounting position;
H. after placement head reaches attachment height, Z axis vacuum solenoid is closed, opens positive pressure electromagnetic valve, vacuum is destroyed, makes element
With tin cream or red glue bond;
I. pcb board fixing device is unclamped in feeding control module control cylinder action, starts transport stepper motor, pcb board is transmitted
To machine is gone out, cycle production is walked back to b.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.