CN105414747B - A kind of efficient machine vision auxiliary laser processing method - Google Patents
A kind of efficient machine vision auxiliary laser processing method Download PDFInfo
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- CN105414747B CN105414747B CN201510872300.3A CN201510872300A CN105414747B CN 105414747 B CN105414747 B CN 105414747B CN 201510872300 A CN201510872300 A CN 201510872300A CN 105414747 B CN105414747 B CN 105414747B
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- 238000003672 processing method Methods 0.000 title abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 108
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- 238000009434 installation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 32
- 230000008569 process Effects 0.000 abstract description 25
- 238000003754 machining Methods 0.000 abstract description 7
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- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
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Abstract
The present invention relates to machine vision auxiliary positioning field in laser machining, in particular to a kind of efficient machine vision auxiliary laser processing method.The present invention using non-coaxial camera and focus head process no less than two and on multiple stations of laid out in parallel for process component, the image information of the parts to be processed on first station in the multiple stations of camera collection, focus head is then processed according to the information to parts, camera carries out image information collecting to second parts while focus head process component, gathered carries out picture signal collection to the 3rd parts, while collection, focus head is processed to second parts, alternating synchronization completes the processing of all parts successively.The present invention is by separated by camera and focus head, it is ensured that both can use simultaneously, reduce the stand-by period of main parts size, improve the processing efficiency of parts, with great promotional value.
Description
Technical field
It is auxiliary in particular to a kind of efficient machine vision the present invention relates to machine vision auxiliary positioning field in laser machining
Help laser processing.
Background technology
Laser processing technology is one of importance of laser application, and consumer electronics product is processed using laser technology
Method has obtained increasing popularization, and at present the rapid growth of consumer electronics product to cause that this kind of product has similar
Feature：Part to be processed is in irregular shape, size is small, tool is installed has gap error, automation, face
To these problems, Laser Processing generally needs to use cooperatively the process that could complete precision with machine vision.Machine vision
Be used to detecting, position in Laser Processing, the function such as defect dipoles and for follow-up Laser Processing provides data support.Video camera
Camera lens mainly has two kinds of imaging methods：On-axis image is gathered and non-coaxial IMAQ.Wherein coaxial implication refers to work
Laser sees and gained that field of view center is typically exactly the position of laser spot on the same axis with camera lens.Using this
The advantage of kind of method be Laser Processing with vision collecting process be it is synchronous carry out can real-time detection machining state, coaxially scheme in addition
As collection ensure laser position is overlapped with central region, with machine locating process repeatedly amount of movement it is small, take it is short the features such as.
The structure of the coaxial machine vision auxiliary locator of prior art is shown in Fig. 1, and multiaxis straight line work is provided with base plate 1
Make platform 2, coaxially arranged camera and focus head 3 is installed on workbench 2, single tool 4 is installed below workbench, pass through
Camera shoots the parts on tool, and be accurately positioned focus head by control device carries out welding processing to parts.
The specific work process of the device is：Workpiece is put into tool 4 (starting processing), and coaxial imaging and focusing first 3 is moved to
The location of workpiece, IMAQ and calculation process, positioning is re-calibrated according to image recognition data, Laser Processing treatment, workpiece from
Open tool 4 (completing processing).There is strict correlation in the flow between all of job step, it is necessary to which performing one by one can not
Parallel or Out-of-order execution.Usual video camera and laser focusing head are all fixed together can be while move, position between the two
Difference is constant (can be zero).The operation activity time of the device is as described in table one：
Table one：Coaxial list tool operation list
Most of unit mechanisms are being put all in wait state at the same time from from the point of view of the situation of actual motion, and system is whole
The working time of body is each summation step by step.Machinery positioning is first subjected to mass of system can not possibly be unlimited with the limitation of power
The quickening of system, IMAQ (taking pictures) time be subject to intensity of illumination, the limitation of time for exposure also cannot further shorten, at image
Reason and computing are more processed the limitation of device computing capability and transmission bandwidth, thus cannot using shortening each procedure of processing when
Between improve efficiency.
Such structure produce in enormous quantities processing in the case of, except increase process equipment quantity cannot often carry
The chance of high yield, in order to increase the treatment two of parts on the basis of single processing unit (plant), someone devises another
Processing unit (plant).
As shown in Fig. 2 the processing unit (plant) increased a set of tool on the device shown in Fig. 1, by a camera and
Focus head is processed to the parts on two sets of tools, and the specific workflow of the device is as follows：By parts to be processed
It is respectively put into left station tool 5 and right working position tool 6, coaxial imaging Laser focus head 3 is moved into left station tool 5 or the right side
Station tool 6 nearby, treat and treatment is carried out to image after one of parts to be processed is taken pictures be calculated physical location
Laser facula is completely superposed with position to be processed on deviation, the coaxial imaging Laser focus head 3 of movement to parts to be processed, laser
Coaxial imaging Laser focus head 3 is moved into the work before being repeated on the also unprocessed tool in another side again after machining,
The parts to be processed for more renewing to the tool for having completed processing simultaneously and reciprocal operation successively.The method master is understood by analysis
Efficiency is improved by saving loading and unloading time of the part on tool.The ruuning situation of the device is as shown in table 2.
Table two：Coaxial double tool operation lists
But the method is still present substantial amounts of wait link, particularly IMAQ, treatment and laser machines the two realities
Most time-consuming link still can only be performed sequentially in the work of border.Cost highest two in machine vision auxiliary laser process equipment
Part is generally also Optical Maser System and image identification system, and the device still allow two parts of most critical have 50% when
Between in idle.
Similar coaxial machine vision device has a lot, such as entitled " the Laser Processing of Patent No. " CN203804223U "
The PCT international application utility model patents of equipment " describe a kind of coaxial machine vision servicing unit of Laser Processing, the structure
The concrete condition of processing component is reflected to ccd image collecting device by two pieces of lens forming periscope structures being in tilted layout
On, laser processing device is carried out to be accurately positioned control by the treatment of image capture device, improve the precision of welding processing.
Similar patent also has a kind of entitled " laser process equipment with machine vision " of Patent No. " CN203380508U "
Chinese utility model patent.The emphasis of this kind of technology development is all how to improve machining precision controlling, but in the machine of raising
Very big change is not made above device treatment effeciency.
The characteristics of non-coaxial observation is laser focusing head and camera lens are two independent units, can individually be pressed
Carry out that optimal settings, the simple cost of optical design process are relatively low according to its respective optical requirement, its problem for existing is cannot
Synchronous are to welding process.And the non-coaxial machine vision secondary process technology of prior art is generally also by camera and gathers
Burnt head is integrated on a telecontrol equipment, and mobile process is mostly synchronous operation, and the treatment to parts needs for carrying out
Individually treatment, camera or focus head need to wait while treatment, virtually consume the substantial amounts of time, critical piece
Utilization ratio is not high to cause the reduction of production efficiency.
In sum, the machine vision secondary process technology of prior art exists and is difficult to shorten process time and inefficiency
Problem.
The content of the invention
Present invention aim to there is inefficiency in the prior art that solves the problems, such as to be mentioned in above-mentioned background technology,
A kind of efficient machine vision auxiliary laser processing method is provided.
The technical scheme is that：A kind of efficient machine vision auxiliary laser processing method, it is characterised in that：Utilize
Camera carries out image information and adopts to the parts on first shooting station in the shooting station in multiple laid out in parallel
Set analysis, camera moves away first shooting station after the completion of collection, drives the parts fortune on first shooting station
Move on first processing stations in the processing stations of multiple laid out in parallel corresponding with shooting station, laser focusing head is utilized
The image information data of camera carries out Laser Processing treatment to the parts on first processing stations, is removed after the completion for the treatment of
The parts for machining load new parts on the first shooting station again, and camera adds in laser focusing head to first
Parts on work station go to second shooting station to enter the parts on second shooting station while being processed
Row image information collecting is analyzed, and after the completion of collection, the parts on the second shooting station move to the second processing stations, swash
Light focus head moves to the second processing stations to carry out laser and adds using image information to the parts on the second processing stations
Work treatment, camera goes to first shooting while laser focusing head is processed to the parts on the second processing stations
Station carries out image information collecting and analyzes in two camera works successively to the parts of the new loading on first shooting station
Next shooting station is moved in circles or gone between position carries out image information to the parts on next shooting station
Collection analysis is moved in circles between multiple camera stations successively, and laser focusing head is completed to zero on the second processing stations
The processing of part goes to first processing stations to carry out the parts of the new loading on first processing stations followed by camera
Laser Processing treatment is circulated between two processing stations or follows camera to go to next processing stations under successively
Parts on one processing stations are processed circulation, camera and Laser Focusing between multiple processing stations successively
Alternating synchronization is operated until all of parts machining is completed head successively.
Further described shooting station has two, including the first shooting station and the second shooting station, corresponding to add
Work station has two, respectively with the first corresponding first processing stations of shooting station and with the second shooting station corresponding second
Processing stations, processing method is comprised the following steps：
1), parts are placed on the first shooting station, camera is located at the holding fix near the first shooting station,
Focus head is waited for positioned at the first processing stations；
2) after the completion of, parts are placed, camera moves to the first shooting station and carries out image information collecting to parts,
Now focus head is waited for positioned at the first processing stations；
3), while camera collection first images the parts image information on station, another parts is put
Put on the second shooting station, focus head is waited for positioned at the first processing stations；
4), camera after the completion of the image information collecting of the parts on the first shooting station to moving to the second shooting work
Position, starts to carry out image information collecting to the parts on the second shooting station, while driving first to image zero on station
Part to the first processing stations, focus head is processed place using the collection information of camera to the parts on the first processing stations
Reason；
5), the parts on the first processing stations are removed by after Laser Processing treatment, while driving second to image station
On parts to the second processing stations, focus head moves to the second processing stations and the parts on the second processing stations is carried out
Processing, camera moves to the holding fix near the first shooting station simultaneously；
6) after, placing new parts on the first shooting station, camera prepares to move to the first shooting station to zero
Part carries out image information collecting, while removing the parts for having machined on the second processing stations, focus head is stopped
It is waited in the second processing stations；
7), repeat the above steps, until all of parts are all machined.
Further described camera moves to the movement locus of the second shooting station and focuses on from the first shooting station
The movement locus that head moves to the second processing stations from the first processing stations does not intersect.
The parts on the first processing stations in further described step 5 after the treatment of focus head by moving
Move to the first shooting station and be removed.
A kind of processing unit (plant) of highly machine vision auxiliary laser, including base plate, it is characterised in that：Described base plate upper end
Face is provided with the one or three axle straight-line displacement platform and the two or three axle straight-line displacement platform positioned opposite, the one or three axle straight-line displacement platform and
Two or three axle straight-line displacement platform arranged beneath has the tool of many set laid out in parallel no less than two sets；The one or three described axle straight line
The camera for being done along the displacement platform and being moved along a straight line is installed on displacement platform；Edge is installed on the two or three described axle straight-line displacement platform
The displacement platform does the focus head for moving along a straight line；Described tool includes a parts delivery track being fixed on base plate and cunning
The dynamic fixture mount for supporting part fixture being connected on parts delivery track.
Further the one or three described axle straight-line displacement platform includes being fixed on base plate upper surface and is suspended in multiple tools
Parts track one end above the first guide rail；Described camera is arranged on the first guide rail by being arranged at the first guide rail
On air cylinder driven along the first guide rail move between multiple parts tracks circulate；
The two or three described axle straight-line displacement platform includes being fixed on base plate upper surface and is suspended in the parts of multiple tools
The second guide rail above the track other end；Described focus head is arranged on the gas by being arranged on the second guide rail on the second guide rail
The guide rail of cylinder drives edge second is moved and circulated between multiple parts tracks.
Further described controls with two sets, the opposing parallel cloth arranged side by side of two parts delivery tracks in two sets of tools
Put；The first described guide rail is parallel to each other with the second guide rail, and vertical with parts delivery track.
Further described fixture mount includes the connecting plate being slidably connected on parts track；Described connecting plate
Upper surface starting stave positioned opposite, the second riser and the 3rd riser are installed；Described starting stave and the second riser
Between be provided with fixed mount for securing part, electric rotating machine is installed between the second riser and the 3rd riser；Described
The output end of electric rotating machine is connected with fixed mount；Described fixed mount two ends be rotatably articulated and connected in starting stave and
Driven by electric rotating machine between second riser and rotated.
Further described fixed mount includes one piece of fixed plate of " U " type；The two ends of described fixed plate are rotatably
It is articulated and connected between starting stave and the second riser, the installation of clamping part fixture is installed in the intermediate board body of fixed plate
Frame.
Further described mounting bracket includes the limiting plate of two pieces of " L " types and the supporting plate in the middle of fixed plate；
Described limiting plate is fixed in fixed plate, and the supporting plate that is placed in both sides form the support knot of support part fixture with supporting plate
Structure, is provided with the alignment pin of vertical fixing plate on the plate body that limiting plate is connected with fixed plate.
Advantages of the present invention has：1st, used by by camera and focus head are separated, reduce reality processing program
In stand-by period, improve the usage degree of critical piece, the operating efficiency of process component is improved, relative to existing skill
The coaxial or non-coaxial working process mode of art, processing efficiency of the invention is higher, and the process time of unit parts is more
It is low, with great promotional value；
2nd, by setting two tools, camera and focus head simultaneously operating successively, while improving operating efficiency, reduce
The volume of whole processing unit (plant), for prior art, can save for 50% process time, shorten unit zero
The process time of part；
3rd, it is arranged on three different axle straight-line displacement platforms by by camera and focus head, by three axle straight-line displacement platforms
Transport is transported through, camera and focus head are non-interference, running orbit does not weigh and reduces camera and focus on cephalomotor
Distance, improves the utilization ratio of equipment；
4th, by setting guide rail, parts to be processed can be transported along trapped orbit, the movement locus of parts is brighter
Really, the motion mode of parts is simplified, makes improve for the precision of processing and efficiency all high degrees；
5th, setting rolling clamp can be easy to pick and place parts on tool, and rolling clamp is when placing and removing parts
Heeling condition is rotated to, is easy to pick and place in face of operator, rolling clamp can be rotated to and faced up again in shooting and processing
State be easy to the processing of camera and focus head to parts, it is simple to operate, it is convenient；
6th, the present invention is by separated by camera and focus head, it is ensured that both can use simultaneously, reduces main
The stand-by period of parts, the processing efficiency of parts is improve, with great promotional value.
Brief description of the drawings
Fig. 1：The structural representation of coaxial single tool of prior art；
Fig. 2：The coaxial pair of structural representation of tool of prior art；
Fig. 3：The structural representation of non-coaxial pair of tool of the invention；
Fig. 4：The schematic diagram of the step 1 in embodiment 2；
Fig. 5：The schematic diagram of the step 2 in embodiment 2；
Fig. 6：The schematic diagram of the step 3 in embodiment 2；
Fig. 7：The schematic diagram of the step 4 in embodiment 2；
Fig. 8：The schematic diagram of the step 5 in embodiment 2；
Fig. 9：The schematic diagram of the step 6 in embodiment 2；
Figure 10：The schematic diagram of the step 7 in embodiment 2；
Figure 11：The structural representation of fixture mount；
1-base plate；Three axle straight-line displacement platforms of 2-prior art；The coaxial camera and focus head of 3-prior art；
Single tool of 4-prior art；Left station tool in the double tools of 5-prior art；Right working position is controlled in the double tools of 6-prior art
Tool；7-the one three axle straight-line displacement platform；7.1-the first guide rail；8-the two three axle straight-line displacement platform；8.1-the second guide rail；
9-camera；10-focus head；11-the first tool；11.1-the first track；11.2-the first fixture；12-the second tool；
12.1-the second track；12.2-the second fixture；13-the first parts to be processed；14-the second parts to be processed；
15-the three parts to be processed；16-connecting plate；17-starting stave；18-the second riser；19-the three riser；20—
Electric rotating machine；21-fixed plate；22-limiting plate；23-supporting plate；24-alignment pin；25-first sensor；26-the first
Tablet；27-second sensor；28-the second tablet.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 3, camera of the invention 9 and the non-coaxial arrangement of focus head 10, camera 9 and focus head 10 are pacified respectively
On two three axle straight-line displacement platforms of laid out in parallel, respectively the one or three axle straight-line displacement platform 7 and the two or three axle straight line position
The axle straight-line displacement platform 7 of moving stage the 8, the 1st and the two or three axle straight-line displacement platform 8 include two articles of side-by-side parallels on base plate 1
The the first cylinder guide rail 7.1 and the second cylinder guide rail 8.1 being intervally arranged, camera 9 is by the first cylinder guide rail 7.1
Air cylinder driven moved along the first cylinder guide rail 7.1, focus head 10 is by the air cylinder driven on the second cylinder guide rail 8.1
Moved along the second cylinder guide rail 8.1.
Three signified axle straight-line displacement platforms of the invention are prior art, mainly realize camera 9 and focus head 10 in left and right
Large linear motion on direction, moves (as shown in figure 3, left and right directions in the small range up and down and on former and later two directions
Refer to the left and right directions in figure, after above-below direction refers to that the above-below direction in figure, vertical drawing direction inwardly are, vertical drawing is outwardly
Direction for preceding), two three axle straight-line displacement platforms are arranged on the upper surface of base plate 1.
The upper surface of base plate 1 is additionally provided with the tool of multiple, and each tool includes a parts delivery track and the company of slip
The fixture mount on delivery track is connected to, the fixture of fixture mount fixed clamp parts is by motor or the drives edge of cylinder
Parts delivery track is moved.
As shown in figure 11, it is the structural representation of fixture mount, fixture mount includes being slidably connected on parts track
Connecting plate 16, the upper surface of described connecting plate 16 sets three pieces of risers of laid out in parallel, from left to right (the left side of the present embodiment
Right direction refers to the left and right directions of Figure 11) it is followed successively by starting stave 17, the second riser 18 and the 3rd riser 19, wherein starting stave 17
And second be provided with fixed mount for securing part fixture between riser 18, the two ends of fixed mount are rotatably articulated and connected
Between the riser 18 of starting stave 17 and second, fixed mount axial rotary is vertical with the arranged direction of parts delivery track, the
Electric rotating machine 20 is provided between two risers 18 and the 3rd riser 19, output shaft and the fixed mount of electric rotating machine 20 are connected.
As shown in figure 11, fixed mount includes a fixed plate 21 of " U " type, and the two ends of fixed plate 21 are rotatably articulated and connected
Between the riser 18 of starting stave 17 and second, one end that fixed plate 21 is connected with the second riser 18 is driven with electric rotating machine 20 and connects
Connect.The fixture for securing part is provided with the intermediate board body of fixed plate 21.The furniture includes two pieces of limiting plates 22 of L-type
With the supporting plate 23 being fixed on the lower surface of fixed plate 21, supporting plate 23 be located at two pieces of limiting plates 22 between formed with limiting plate 22
Support the clamp structure of parts.For more stable support parts, on the plate body that limiting plate 22 is connected with fixed plate 21
The alignment pin 24 of vertical fixing plate 21 is provided with, when actually used, the hole on parts be correspond into alignment pin 24 and be plugged, can
Stable is fixed on parts on the fixture.
Fixture mount can drive parts that switching is rotated between multiple positions (i.e. the angles of inclination of parts), but
During practical application, can only be met with two positions and normally used, one is that (Working position both can be laser to Working position
Processing stations may also be shooting station), the face to be processed of parts now should be vertical with focus head or camera, another
Access position, the face to be processed of parts now should oriented manipulation workman, be easy to workman to take parts.In order to more preferable
Guarantee parts switch between two stations, this fixture mount be provided between connecting plate 16 and fixed mount 21 position sense
Answer device.
As shown in figure 11, position induction device includes first sensor 25 and second sensor 27, the He of first sensor 25
Second sensor 27 is the induction installation with U-shaped opening in the upper surface of connecting plate 16 positioned opposite, the centre of the U-shaped opening
There is induction source.
The rear and front end of the intermediate board body of fixed plate 21 is respectively arranged with the He of the first tablet 26 of correspondence first sensor 25
Second tablet 28 of correspondence second sensor 27.First tablet 26 rotates with fixed plate 21, and the rotational trajectory of its end is worn
The U-shaped opening of first sensor 25 is crossed, when the end of the first tablet 26 passes through the U-shaped opening of first sensor 25, control
Device can immediately determine that parts now are in Working position, and controller is by the signal transmission for shutting down to electric rotating machine
20, electric rotating machine 20 shuts down, and now parts are at Working position.
Similarly, the second tablet 28 passes through the U-shaped of second sensor 27 with the rotational trajectory that fixed plate 21 rotates its end
Opening, when the end of the second tablet 28 passes through the U-shaped opening of second sensor 27, controller can immediately determine now
Parts are in access position, and controller transmits the signal for shutting down to electric rotating machine 20 immediately, and electric rotating machine 20 stops fortune
Turn, now parts are at access position.
When using, sensor and electric rotating machine 20 are all connected with PLC control devices, PLC control devices control electric rotating machine
20 operatings, fixed plate 21 rotates under the driving of electric rotating machine 20, when the second tablet 28 runs to the U-shaped of second sensor 27
During aperture position, second sensor 27 has moved to the signal of access position, control device to control device transmission fixed mount
The signal for shutting down is transmitted to electric rotating machine 20 after receiving signal, electric rotating machine 20 stops, and now fixed mount is at taking
Position is put, just can be placed in parts to be processed on fixed mount by operator.
After the completion of the placement of parts, control device control electric rotating machine 20 is rotated, and fixed plate 21 rotates, in the first sense
When answering plate 26 to rotate through the U-shaped opening on first sensor 25, first sensor 25 sends fixed plate to control device immediately
21 signals for having moved to Working position, control device is received and shut down immediately after the signal electric rotating machine 20, now
Parts are located at Working position under the turning effort of fixed plate 21, by after Laser Processing, fixed plate 21 is turned again to
Access position, operator removes the parts for having machined, and completes whole process.
Embodiment 1：The upper surface of base plate 1 of the present embodiment is provided with multiple tools, and each tool includes that a parts are defeated
Track and the fixture being slidably connected on delivery track are sent, fixture clamping parts are by motor or the drives edge zero of cylinder
Part delivery track is moved, and two stations are included on each parts track, respectively images station and processing stations, multiple zero
Part delivery track laid out in parallel, it is non-cross.
First cylinder guide rail 7.1 and the second cylinder guide rail 8.1 are suspended in the top of parts delivery track, and the first cylinder is led
Rail 7.1 conveys camera 9 and switches between multiple shooting station, and the second cylinder guide rail 8.1 conveys focus head 10 and processed in multiple
Switch between station.
Assuming that the quantity of parts track is n, the quantity of corresponding shooting station is also n, corresponding processing stations
Also it is n.
The step of laser processing of the present embodiment, is as follows：
1st, (i is 1,2,3 ..., and i to i-th<N) parts to be processed are placed on the shooting station of bar parts track, is taken the photograph
As first 9 and focus head 10 be waited for；
2nd, after the completion of parts are placed, camera 9 moves to taking the photograph for i-th parts track along the first cylinder guide rail 7.1
As starting to carry out picture signal collection analysis to the parts to be processed on the shooting station on station, analyze data is delivered to control
Device processed；
3rd, after the completion of picture signal collection, the parts on i-th shooting station of parts track are in parts
I-th processing stations of parts track is moved under the driving effect of delivery track, now camera 9 is along the first cylinder guide rail
7.1 move to and start to carry out image letter to the parts to be processed on the station on the shooting station of i+1 bar parts track
Number collection analysis；
4th, focus head 10 moves 8.1 to the i-th processing stations of parts track along the second cylinder guide rail, in camera 9
While parts to be processed on the shooting station of i+1 bar parts track are carried out with picture signal collection, focus head 10
The parts on i-th processing stations of parts track are processed using the IMAQ information of camera 9；
5th, treat that camera 9 is adopted to the picture signal of the parts to be processed on the shooting station of i+1 bar parts track
After the completion of collection, i+1 bar parts track drives parts that the processing stations of the track are moved to from the shooting station of the track,
Camera 9 is moved on the i-th+2 shooting stations of parts track to be processed on the station along the first cylinder guide rail 7.1
Parts carry out picture signal collection；
6th, focus head 10 is moved on the processing stations of i+1 bar parts track along the second cylinder guide rail 8.1, in shooting
The shooting station of first 9 pairs the i-th+2 parts tracks i+1 bar parts track is added while picture signal is gathered
Parts to be processed on work station are processed；
7th, alternating synchronization is carried out until the parts to be processed on n bar parts tracks successively for camera 9 and focus head 10
All treatment are completed.
The present embodiment sets a plurality of parts track, when saving substantial amounts of by synchronous operation camera 9 and focus head 10
Between, the stand-by period of critical piece is reduced, improve the processing efficiency of parts.Parts rail transfer parts are respective
Switch between the shooting station and processing stations of track, reduce the move distance of camera and focus head, simplify camera
With the motion mode of focus head.
Embodiment 2：The present embodiment only sets two sets of tools, the first tool 11 as shown in Figure 3 on the basis of embodiment 1
With the second tool 12, first tool 11 of the present embodiment includes the first track 11.1 being fixed on base plate 1 and is slidably connected to
The first fixture 11.2 on first track 11.1, the second tool 12 includes the second track 12.1 being fixed on base plate 1 and slides
The second fixture 12.2 on track is connected to, the first track 11.1 and the second track 12.1 mutually place side by side parallel arrangement at two three
The lower section of axle straight-line displacement platform.The start position of the first track 11.1 is the shooting station of the first tool 11, i.e., the first shooting work
Position, terminal is the processing stations of the first tool 11, i.e. the first processing stations, and the start position of the second track 12.1 is the second tool
12 shooting station, i.e., the second shooting station, terminal is the processing stations of the second tool 12, i.e. the second processing stations.
Camera 9 and focus head 10 are toggled on the first tool 11 and the second tool 12, complete the processing of parts.
First cylinder guide rail 7.1 is located at starting point one end of the first track 11.1 and the second track 12.1, its arranged direction with
The line direction of two shooting stations is identical, and the second cylinder guide rail 8.1 is located at the end of the first track 11.1 and the second track 12.1
Point one end, its arranged direction is identical with the line direction of two processing stations.
The processing method of the present embodiment is comprised the following steps that：
1st, as shown in figure 4, be placed on for first parts to be processed 13 in the first shooting station by the first fixture 11.2
First fixture 11.2 (the first fixture 11.2 now is located at the start position of the first track 11.1, i.e., on the first shooting station)
On, camera 9 is located at the holding fix near the first shooting station of the first track 11.1, and focus head 10 is located at the first processing work
Position is waited for；
2nd, as shown in figure 5, after the completion of first parts to be processed 13 is placed, camera 9 moves to the first track 11.1
First shooting station image information collecting is carried out to first parts to be processed 13, now focus head 10 be located at the first track
11.1 the first processing stations are waited for；
3rd, as shown in fig. 6, while camera 10 gathers the image information of the parts on the first track 11.1, by the
Two parts to be processed 14 are placed on the second fixture 12.2, and the second fixture 12.2 is located at the second IMAQ station, now
The first processing stations that focus head 10 is located at the first track 11.1 are waited for；
4th, as shown in fig. 7, first image information of parts to be processed 13 on 10 pairs of the first tracks 11.1 of camera
The second IMAQ station of the second track 12.1 is moved to after the completion of collection, starts to treat second on the second track 12.1
Process component 14 carries out image information collecting, while the first fixture 11.2 drives first parts to be processed 13 to move to the
One processing stations, focus head 10 is using the collection information of camera 9 to first parts to be processed on the first track 11.1
13 are processed；
5th, as shown in figure 8, first parts to be processed 13 on the first track 11.1 lead to by after Laser Processing treatment
The transhipment for crossing the first track 11.1 is removed from the processing stations of the track to after imaging station, and the first fixture 11.2 moves to first
IMAQ station, the second fixture 12.2 drives second parts to be processed 14 to move to the second processing stations, focus head 10
The second processing stations for moving to the second track 12.1 are added to second parts to be processed 14 on the second track 12.1
Work, camera 9 returns to the holding fix beside the shooting station of the first track 11.1 simultaneously；
6th, as shown in figure 9, after placing the 3rd parts to be processed 15 on the first track 11.1, camera 9 prepares to move
Move to the first IMAQ station carries out image information collecting to the 3rd parts to be processed 15；
7th, as shown in Figure 10, the second fixture 12.2 drives the processing of the parts that have machined from the second track 12.1
Then station manually removes the parts to station is imaged, and focus head 10 rests on the second processing stations and is waited for；
8th, repeat the above steps, until all of parts to be processed are all machined.
First track 11.1 and the parallel interval of the second track 12.1 arrangement of the present embodiment, the first cylinder guide rail 7.1 and the
The parallel interval of two cylinder guide rail 8.1 is arranged, the first cylinder guide rail 7.1, the second cylinder guide rail 8.1 and the first track 11.1 and the
Two tracks 12.1 are projected as symmetrical square on base plate 1.During practical application, it may be considered that to the He of focus head 10
Difference of the camera 9 in the respective station residence time, sets corresponding structure, it is assumed that stop of the camera 9 on shooting station
Residence time of the time than focus head 10 on processing stations is few, in order to the synchronization for ensureing processing work is carried out, can be appropriate
Extend the length of the first cylinder guide rail 7.1, i.e. the length of the first cylinder guide rail 7.1 is longer than the length of the second cylinder guide rail 8.1, lead to
The extension of guide rail transhipment time is crossed to reach the purpose of synchronous operation.What the now projection of guide rail and track on base plate 1 was formed
It is exactly an isosceles trapezoid.Specific track and guide rail arrangement are arranged according to the actual requirements.
Shooting station is the start position of guide rail, and processing stations are the final position of track.
Table three between the manufacturing procedure of the present embodiment.
Table three：Non-coaxial pair of tool operation list
It can be seen from table three, the processing method high degree of the processing unit (plant) of the present embodiment reduce critical piece etc.
Treat the time, the operation in three subordinate lists of Comprehensive Correlation takes：
The unit interval needed for 6 parts of traditional single-station laser processing shown in table one is 36, during single part
Between be 36/6=6；
The unit interval needed for 4 parts of traditional double tool laser processing shown in table two is 20, during single part
Between be 20/4=5；
Shown in table three is 36, single part with the unit interval needed for 10 parts of laser processing of the invention
Time is 36/10=3.6；
The production efficiency compared with traditional single-station laser processing of the invention improves (6-3.6)/6*100% as can be seen here
=40%, the production efficiency compared with traditional double laser processing of the invention improves (5-3.6)/5*100%=28%, often
Laser and image identification system typically constitute from the overall design cost overwhelming majority in the laser process equipment of rule, to realize the present invention
Need only to increase a set of three-axis moving mechanism and supporting tool, it is not necessary to additionally increase laser, image identification system, with pay
The input for going out is compared to economic benefit and social benefit higher.
Tool has mobile function in the method for the present embodiment, and parts to be processed can be driven to be adopted in picture signal respectively
Switch between collection station and Laser Processing station, such setting reduces camera and focus head move distance, reduces and take the photograph
As the time of head and focus head in moving process, camera and focus head can move along fixation locus, each fortune is simplified
The movement difficulty of dynamic component, makes control method more simple, and the motion of each part is more smooth.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (5)
1. a kind of processing unit (plant) of highly machine vision auxiliary laser, including base plate (1), it is characterised in that：Described base plate (1)
Upper surface is provided with the one or three axle straight-line displacement platform (7) and the two or three axle straight-line displacement platform (8) positioned opposite, two displacement platforms
Arranged beneath has the tool of many set laid out in parallel no less than two sets；It is provided with the one or three described axle straight-line displacement platform (7)
The camera (9) for moving along a straight line is done along the displacement platform；It is provided with along the displacement platform in the two or three described axle straight-line displacement platform (8)
Do the laser focusing head (10) for moving along a straight line；Described tool includes a parts delivery track being fixed on base plate (1)
With the fixture mount for supporting part fixture being slidably connected on parts delivery track；
Described fixture mount includes the connecting plate (16) being slidably connected on parts track；Described connecting plate (16) it is upper
End face is provided with starting stave (17) positioned opposite, the second riser (18) and the 3rd riser (19)；Described starting stave
(17) fixed mount for securing part, the second riser (18) and the 3rd riser (19) are provided with and the second riser (18) between
Between electric rotating machine (20) is installed；The output end of described electric rotating machine (20) is connected with fixed mount；Described fixation
Frame two ends to be rotatably articulated and connected between starting stave (17) and the second riser (18) and drive rotation by electric rotating machine (20)
Turn；
Described fixed mount includes one piece of fixed plate (21) of " U " type, and position is provided between connecting plate (16) and fixed plate (21)
Put induction installation；Described position induction device includes first sensor (25) and second sensor (27), first sensor
And second sensor (27) is the induction installation with U-shaped opening in connecting plate (16) upper surface positioned opposite (25)；It is described
Fixed plate (21) intermediate board body rear and front end be respectively arranged with correspondence first sensor (25) the first tablet (26) and
Second tablet (28) of correspondence second sensor (27)；Described first sensor (25), second sensor (27) and rotation
Motor (20) is connected with PLC control devices.
2. a kind of processing unit (plant) of highly machine vision auxiliary laser as claimed in claim 1, it is characterised in that：Described
One or three axle straight-line displacements platform (7) are including being fixed on base plate (1) upper surface and being suspended on parts track one end of multiple tools
First guide rail (7.1) of side；Described camera (9) is on the first guide rail by being arranged on the first guide rail (7.1)
Air cylinder driven is moved along the first guide rail (7.1) and circulated between multiple parts tracks；
The two or three described axle straight-line displacement platform (8) includes be fixed on base plate (1) upper surface and be suspended in multiple tools zero
The second guide rail (8.1) above the part track other end；Described focus head (10) is on the second guide rail by being arranged at
Air cylinder driven on two guide rails (8.1) is moved along the second guide rail (8.1) and circulated between multiple parts tracks；
Described the first guide rail (7.1) and the second guide rail (8.1) parallel side-by-side are arranged.
3. a kind of processing unit (plant) of highly machine vision auxiliary laser as claimed in claim 2, it is characterised in that：Described controls
With two sets, two parts delivery tracks in two sets of tools are opposing parallel to be arranged in juxtaposition；Described the first guide rail (7.1) with
Second guide rail (8.1) is vertical with parts delivery track.
4. a kind of processing unit (plant) of highly machine vision auxiliary laser as claimed in claim 1, it is characterised in that：Described consolidates
The two ends of fixed board (21) are rotatably articulated and connected between starting stave (17) and the second riser (18), in fixed plate (21)
Between the fixture of clamping parts is installed on plate body.
5. a kind of processing unit (plant) of highly machine vision auxiliary laser as claimed in claim 4, it is characterised in that：Described folder
Tool includes the limiting plate (22) of two pieces of " L " types and the supporting plate (23) installed in fixed plate (21) centre；Described limiting plate
(22) it is fixed in fixed plate (21), the supporting plate that is placed in (23) both sides form the clamping knot of securing part with supporting plate (23)
Structure, is provided with the alignment pin (24) of vertical fixing plate (21) on the plate body that limiting plate (22) is connected with fixed plate (21).
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| CN106680286A (en) * | 2016-12-20 | 2017-05-17 | 深圳信息职业技术学院 | Machine vision-based laser processing system and machine vision-based laser processing method |
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