CN105690480A - Automatic cutting machine with vision alignment function, and control method thereof - Google Patents
Automatic cutting machine with vision alignment function, and control method thereof Download PDFInfo
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- CN105690480A CN105690480A CN201610225281.XA CN201610225281A CN105690480A CN 105690480 A CN105690480 A CN 105690480A CN 201610225281 A CN201610225281 A CN 201610225281A CN 105690480 A CN105690480 A CN 105690480A
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- computing system
- severing
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- 238000005520 cutting process Methods 0.000 title claims abstract description 196
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004744 fabric Substances 0.000 claims abstract description 48
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 72
- 239000000463 material Substances 0.000 claims description 35
- 238000012937 correction Methods 0.000 claims description 30
- 238000012545 processing Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- -1 C is bottom Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
- B26F1/405—Travelling head presses
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
- A43D8/02—Cutting-out
- A43D8/10—Cutting-out using pattern grading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/007—Control means comprising cameras, vision or image processing systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
- B26F2001/402—Cutting-out; Stamping-out using a press, e.g. of the ram type curvilinear cutting presses, i.e. the stroke comprising an overlay of a linear and a curved movement
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses an automatic cutting machine with a vision alignment function, and a control method thereof. A vision photographing assembly and an alignment calculation system are additionally designed on the basis of the main body frame and system of the existing cutting machine. Before each cutting action, the vision photographing assembly photographs a pre-cut fabric area, shoots a fabric outline position into a picture, and conveys the picture to the alignment calculation system; the alignment calculation system calculates the movement distances of the driven cutting die base and blanking table surface, and the rotation angle of a cutting die disc according to the deviation position of an outline in the picture relative to a reference point; and a PLC drives the cutting die base and the blanking table surface to displace, and drives the cutting die disc to rotate an angle according to the allowance transmitted by the alignment calculation system, so that a cutting die is accurately located above a fabric, and the cutting die is pressed to complete cutting. The system continuously repeats the steps of photographing, offset calculation, and alignment cutting, thus efficiently, accurately and fully automatically completing the cutting working for the fabric.
Description
Technical field
The present invention relates to severing field of mechanical technique, carry out the cutting machine of fabric processing of cutting particularly to industries such as a kind of shoemaking, leatherware processing。
Background technology
Along with growth in the living standard, people are more and more diversified to the moulding of the product such as shoes, leatherware and the requirement of style, this means that the relevant fabric profile needing severing becomes increasingly complex, and then need constantly to promote the automatization level of cutting machine, to save artificial and material cost, improve working (machining) efficiency。
Shoemaking, system bag form generally by difform cut-parts piece, and difform cut-parts are dependent on forming knife mold and cut what fabric obtained at cutting machine, it is possible to the fabric of severing can be the materials such as leather, cloth, plastics。Cutting machine is a kind of equipment being commonly used in fabric severing processing; during work; power drive is relied on to be arranged on the movable knife mold base on cutting machine at moving on rails; after moving to setting position; it is arranged under the cutting die on cutting die pedestal cutting die dish and presses severing fabric; from fabric, severing goes out the cut-parts consistent with cutting die shape, thus completing blanking work。A lot of cut-parts now are that multiple layers of different materials passes through viscous pressure or sewing is composited, and multilamellar cut-parts need on cutting machine respectively by corresponding cutting die severing, are then combined with each other again, and manufacturing procedure is many, and efficiency is low。In order to improve working (machining) efficiency, the detail of design that existing fabric supplier just provides as desired at present, produce the Multilayer plus material being combined with each other, as it is shown in figure 1, wherein A is fabric pattern top layer, B is interlayer, C is bottom, and A shell fabric is printed with cutting die profile and exterior design, can use by after profile severing, although such fabric greatly reduces production process, but severing work is brought new difficulty。In the past to when not having figuratum material severing, have only to control cutting die at a certain distance with angle automatic severing material continuously, when now the material being printed with pattern and profile being carried out severing, because the spacing of pattern contour and angle are not necessarily uniformly, and severing must carry out according to contour line, so needing to be accurately positioned cutting die, the outline making cutting die and material can severing after fitting like a glove, if para-position is inaccurate, pattern contour on fabric will be destroyed, become waste material, cause waste。The way solving this problem at present is to use the artificial severing of manual cutting machine, artificial exactitude position cutting die, and severing efficiency is low, and cost of labor is high。
For improving production efficiency, shoemaking, Zhi Bao enterprise use this novel multi-layer composite can be increasingly general, for this, improve the automatization level of cutting machine, reduce cost of labor, improve severing efficiency, it is achieved accurately this new cut-parts material of severing is particularly important automatically, and mechanical cutting machine on the market there is no method and solves this difficult problem at present。
Summary of the invention
In order to make up the deficiencies in the prior art, the invention discloses a kind of visual-alignment automatic cutting machine and control method thereof, namely on the basis of existing cutting machine main body frame and system, increase design vision to take pictures assembly and para-position computing system, thus realizing a set of to carry out the automatic cutting machine of accurate contraposition and corresponding control method thereof for the pattern on fabric。
The invention thinking of above-mentioned automatic cutting machine is as follows: before carrying out severing action every time, first pre-severing fabric region is taken pictures by vision assembly of taking pictures, fabric outline position is shot for photo, photo is sent to para-position computing system, para-position computing system calculates the anglec of rotation of displacement and the cutting die dish driving cutting die pedestal and blanking table top according to profile in photo relative to the deviation position of reference point, the correction that PLC is come according to the transmission of para-position computing system drives cutting die pedestal and blanking table top displacement, drive cutting die disc spins angle, cutting die is made accurately to be in above fabric, lower push type broach mould completes severing。System constantly repeats to take pictures, calculate the step of side-play amount, para-position severing, thus efficiently, accurately, full-automaticly completing the severing work of fabric。
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of visual-alignment automatic cutting machine, including cutting machine framework, servomotor, actuating unit, leading screw, PLC, blanking table top, cutting die pedestal, cutting die dish, guide rail；Guide rail and leading screw are set in parallel in cutting machine framework, and cutting die pedestal is arranged on guide rail and leading screw, and its lower end arranges cutting die dish；Cutting die pedestal is under the control of PLC; the transverse movement on guide rail of cutting die pedestal is driven by servomotor rotational lead screw; actuating unit controls cutting die pedestal and moves both vertically, and the fabric on blanking table top is carried out severing, it is characterised in that: also include vision and take pictures assembly and para-position computing system；Take pictures assembly and cutting die pedestal of vision is fixed, and itself and cutting die pedestal possess identical coordinate system；Vision is taken pictures has the signal of telecommunication to be connected between assembly with para-position computing system, and the picture data of shooting is transferred to para-position computing system by signal of telecommunication connection；Para-position computing system is the computer being calculated according to the control method of design and controlling, and possesses many group signals of telecommunication and be connected between its with PLC。
Further, described vision assembly of taking pictures includes support and photographic head, and support is fixing with cutting die pedestal to be connected, and photographic head is fixed with support and is connected。
Further, described vision assembly support of taking pictures also includes photographic head height adjustment mechanism, for regulating the height of photographic head, to adjust its shooting field range。
Further, described vision assembly support lower end of taking pictures is additionally provided with illuminator, and it is for shooting the illumination that fabric region provides enough in advance。
Further, described para-position computing system is connected with the signal of telecommunication of PLC and includes: para-position computing system to PLC transmission laterally, the signal of telecommunication of longitudinal direction and anglec of rotation correction connects；The signal of telecommunication that PLC transmits cutting die pedestal signal in place to para-position computing system connects；The signal of telecommunication that PLC transmits cutting die base position coordinate to para-position computing system connects。
The invention also discloses the control method of above-mentioned visual-alignment automatic cutting machine, it is characterised in that cutting die pedestal and vision take pictures assembly for being rigidly connected, and are synchronized with the movement, have common coordinate system；Vision assembly of taking pictures shoots under the control of para-position computing system and treats cutting surface material photo and photo is transferred to para-position computing system, the basis reference photo that the photo that para-position computing system carrys out thecamera head stores up with calculator memory is compared, calculate site error and correction, horizontal correction, longitudinal correction, rotation correction are transferred to PLC；PLC is laterally moved by correction by Serve Motor Control cutting die pedestal; control cutting die dish by rotation control mechanism to rotate by rotating correction; control blanking table top by longitudinal correction motion by automatic feed mechanism, control to have pressed severing action under the cutting die dish on cutting die pedestal by actuating unit；After severing completes; PLC retreats cutting die pedestal by step distance set in advance; after putting in place, cutting die base position coordinate and cutting die pedestal signal in place are transferred to para-position computing system; para-position computing system sends photographing instruction to vision assembly of taking pictures again, by the continuous palikinesia of above-mentioned control planning；After horizontal cutting sets cutter number, PLC drives blanking bench to wear dynamic fabric by automatic feeding system and vertically moves a cutting die distance, and PLC drives cutting die pedestal reverse execution severing, again by above-mentioned control planning palikinesia until shutting down。
Further, described basis reference photo is determined in accordance with the following steps:
The first step: severing original position fixes one greatly in the monochromatic material of cutting die on blanking table top, manual operation cutting die pedestal moves to directly over monochromatic material, severing one cutter, and on monochromatic material, severing goes out a hole consistent with cutting die；
Second step: on the fabric preparing processing, start position the first sheet stock according to cut-parts a piece of under profile cutting, hole cut-parts being accurately aimed on blank sheet of paper places；
3rd step: manual operation cutting die pedestal moves to cut-parts place, makes the take pictures photographic head of assembly of vision be positioned at directly over cut-parts, shoots a photo, and photo is transferred to para-position computing system as basis reference photo；
4th step: on para-position computing system, chooses and contrasts obvious, readily identified point on photo and be set as reference point。
Described monochromatic material is a blank sheet of paper。
The invention thinking of above-mentioned automatic cutting machine is as follows: before carrying out severing action every time, first pre-severing fabric region is taken pictures by vision assembly of taking pictures, fabric outline position is shot for photo, photo is sent to para-position computing system, para-position computing system calculates the anglec of rotation of displacement and the cutting die dish driving cutting die pedestal and blanking table top according to profile in photo relative to the deviation position of reference point, the correction that PLC is come according to the transmission of para-position computing system drives cutting die pedestal and blanking table top displacement, drive cutting die disc spins angle, cutting die is made accurately to be in above fabric, lower push type broach mould completes severing。System constantly repeats to take pictures, calculate the step of side-play amount, para-position severing, thus efficiently, accurately, full-automaticly completing the severing work of fabric。
In sum, the beneficial effects of the present invention is: 1) can pre-severing fabric be taken pictures and para-position severing continuous and automatic, thus the accuracy of severing, yield rate and production efficiency are greatly improved, it is prevented effectively from the waste of material；2) after the present invention sets program startup, just can be automatically performed severing operation, cutting machine of the present invention is equivalent to the 8 people artificial severing efficiency to 10 people, almost without manual intervention, significantly reduce cost of labor, the employment cost of enterprise can be saved when cost of labor height instantly is looked forward in a large number, there is good market prospect。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of MULTILAYER COMPOSITE belt profile pattern fabric；
Fig. 2 is the structural representation of visual-alignment automatic cutting machine；
Fig. 3 is that vision is taken pictures the structural representation of assembly；
Fig. 4 is that the vision with governor motion is taken pictures modular construction schematic diagram；
Fig. 5 is the control planning block diagram of visual-alignment automatic cutting machine；
Fig. 6 is visual-alignment automatic cutting machine working-flow figure。
Wherein: A-fabric pattern top layer；B-fabric interlayer；C-fabric bottom；
1-vision is taken pictures assembly；101-photographic head；102-illuminating lamp 1；103-illuminating lamp 2；
104-support；105-set screw；
2-para-position computing system；3-PLC controller；4-guide rail；5-leading screw；
6-servomotor；7-cutting die pedestal；8-cutting die dish；9-blanking table top。
Detailed description of the invention
Below with regard to the visual-alignment automatic cutting machine of the present invention application at shoe-making field, in conjunction with accompanying drawing, the present invention is further illustrated。
The Novel upper material mentioned about background technology is as it is shown in figure 1, be a kind of novel multi-layer composite band contour patterns fabric, when this material of severing, it is desirable to cutting die to fit like a glove with the outer contour being printed on fabric pattern top layer A。Because the profile transverse and longitudinal and the angle that are printed on top layer are likely to be inconsistent, so the mode severing of cutting die stepping constant spacing, cutting die disc spins fixed angle cannot be passed through to set, each cutter severing is required for accurate alignment。The three layers of diagram not only limit by this material, it is also possible to two-layer or multilamellar, because surface is printed with the general character of cutting die profile, is required for promoting the automatization level of cutting machine。
Fig. 2 is the structural representation of visual-alignment automatic cutting machine provided by the invention。As it can be seen, wherein, para-position computing system 2 is responsible for the fabric photo of comparing calculation photographic head 101 shooting and the error of the basis reference photo being stored in computer, and the coordinate according to cutting die pedestal 7 calculates correction, is transferred to PLC 3；Take pictures assembly 1 of vision is rigidly connected with cutting die pedestal 7, is synchronized with the movement, has common coordinate system with cutting die pedestal 7；PLC 3 is responsible drives components described below to move as follows: 1) drive servomotor 6 to drive cutting die pedestal 7 to move along guide rail 4 laterally (i.e. left and right directions in figure) by leading screw 5；2) drive cutting die dish 8 to press certain angle and rotate cutting die；3) it is responsible for driving blanking table top 9 longitudinally (i.e. fore-and-aft direction in figure) motion；4) be responsible for drive cutting die pedestal 7 work actuating unit (being generally oil sector, not shown) press down lift cutting die dish 8 drive cutting die complete blanking severing work；In addition cutting die base position coordinate and cutting die pedestal signal in place are also transferred to para-position computing system 2 by PLC；Cutting machine of the present invention also includes system and parts essential to other conventional cutting machines, as: oil hydraulic system, automatic feeding system etc., because not being the invention main points of the present invention, simultaneously when the present invention is described without relating to, so in the diagram and be not drawn into, do not draw and do not represent the present invention and do not include system and the parts of these indispensabilities。
Vision take pictures assembly structural representation as shown in Figure 3; the take pictures support 104 of assembly 1 of vision can be integrated; can also being be formed by fixedly connecting by the combination of a plurality of rigid material, itself and cutting die pedestal 7 be rigidly connected, and are rigidly connected between photographic head 101 and support 104。Described rigidly connected it is meant that when cutting machine works; vision is taken pictures and will not be subjected to displacement between assembly 1 and cutting die pedestal 7; to guarantee that vision assembly 1 of taking pictures has common, consistent coordinate system with cutting die pedestal 7, namely reinforce definite value by cutting die pedestal 7 present position coordinate and can calculate photographic head 101 and shoot the position coordinates of reference point on vamp material within sweep of the eye；Fig. 4 further describes the vision with governor motion and takes pictures modular construction schematic diagram, vision take pictures assembly 1 support 104 on set screw 105 can also be set, for regulating height and the shooting field range of photographic head 101；As shown in Figure 3, Figure 4, take pictures support 104 lower end of assembly 1 of vision is provided with illuminating lamp 1 and illuminating lamp 2 103, shoots, for photographic head 101, the illumination that fabric field range provides enough, so that the photo of shooting is enough clear。For reaching to provide the purpose of illumination, described illuminating lamp is not limited only to two, it is also possible to being one or multiple, its position is also not limited to pedestal lower end, and its position also can regulate；Photographic head 101 has electrical signal line to be connected with para-position computing system 2, and the photo of shooting is transferred to para-position computing system 2 by signal of telecommunication connection。
Between of the present invention cutting machine system and parts control planning is further illustrated below。As shown in Figure 5; cutting die pedestal and vision take pictures assembly for being rigidly connected; it is synchronized with the movement; have common coordinate system; vision assembly of taking pictures shoots under the control of para-position computing system and treats severing vamp material photo and photo is transferred to para-position computing system; the reference picture that the photo that para-position computing system carrys out thecamera head stores up with calculator memory is compared; calculate site error and correction according to basis reference, horizontal correction, longitudinal correction, rotation correction are transferred to PLC；PLC is laterally moved by correction by Serve Motor Control cutting die pedestal; control cutting die dish by rotation control mechanism to rotate by rotating correction; control blanking table top by longitudinal correction motion by automatic feed mechanism, control to have pressed severing action under the cutting die dish on cutting die pedestal by actuating unit such as oil pressure cutting mechanism；After severing completes; PLC retreats cutting die pedestal by step distance set in advance; after putting in place, cutting die base position coordinate and cutting die pedestal signal in place are transferred to para-position computing system; para-position computing system sends photographing instruction to vision assembly of taking pictures again, by the continuous palikinesia of above-mentioned control planning；After horizontal cutting sets cutter number, PLC drives blanking bench to wear dynamic fabric by automatic feeding system and vertically moves a cutting die distance, and PLC drives cutting die pedestal reverse execution severing, again by above-mentioned control planning palikinesia until shutting down。
In order to complete above-mentioned work, it is necessary to setting a basis reference coordinate for para-position computing system, specifically, basis reference defining method step is as follows:
The first step: severing original position fixes one greatly in the monochromatic material of cutting die on blanking table top 9, manual operation cutting die pedestal 7 moves to directly over monochromatic material, severing one cutter, and on monochromatic material, severing goes out a hole consistent with cutting die；
Second step: on the fabric preparing processing, complies with start position the first sheet stock a piece of cut-parts under the outline cutting of its pattern, and the hole being accurately aimed at cut-parts on above-mentioned monochromatic material cutting out places；
3rd step: manual operation cutting die pedestal 7 moves to cut-parts place, makes the take pictures photographic head 101 of assembly 1 of vision be positioned at directly over cut-parts, shoots a photo, and photo is transferred to para-position computing system 2；
4th step: on para-position computing system 2, chooses and contrasts obvious, readily identified point on photo and be set as reference point；
Monochromatic material described in the above-mentioned first step, second step, it is preferred to a blank sheet of paper, it is therefore an objective to the background making the cut-parts basis reference photo of the 3rd step shooting is pure color, to facilitate para-position computing system 2 to identify judgement accurately。
After operating by described basis reference defining method; namely para-position computing system 2 sets up a basis reference relative to cutting die pedestal 7 coordinate system zero-bit; namely there are a piece of cut-parts relative to the somewhere coordinate of coordinate zero-bit; because the position being based on severing solid color paper is placed; so itself and cutting die strictly coincide; the cut-parts at this coordinate place have shot photo and have been stored in para-position computing system; and on photo, it is provided with para-position reference point; this comprises accurate coordinate and sets the reference picture of reference point, the contrast foundation of shooting photo during as continuous severing automatically afterwards。
Specifically, the preparation operation flow process before the continuous startup of severing automatically is as follows:
The first step: feeding, by the hole of initiating terminal the first block profile of full wafer fabric and the cut-parts rough alignment on blanking table top, is then fixed to monolithic on blanking table top 9；
Second step: measure horizontal, longitudinal substantially spacing of profile on fabric, calculates horizontal cutter number, numerical value inputs PLC 3；
3rd step: by cutting die pedestal 7 back to zero position, the take pictures photographic head 101 of assembly 1 of manual operation vision moves to the surface approximate location of material the first cutter；
4th step: starting cutting machine automatic operation mode, cutting machine can automatically carry out accurate severing work continuously by control method of the present invention。
In above-mentioned steps, during the first step feeding profile hole of material be prior severing out, purpose is conveniently to be directed at the cut-parts on blanking table top 9, the surface approximate location of material the first cutter is moved to described in rough alignment described in the first step, the measurement transverse and longitudinal substantially spacing described in second step and the 3rd step, " substantially " be meant that without very strict, because basis reference photo has built up, automatically each cutter severing during work be all to carry out taking pictures, comparing calculation, and just carry out severing after providing correction。
The control method of visual-alignment automatic cutting machine provided by the invention; it is a kind of make vision take pictures the method for assembly and the work of para-position computing system orderly continuous control cutting machine; after manual actuation cutting die pedestal 7 moves to work starting position; start automatic operation mode; as shown in Figure 6, control method is as described below for visual-alignment automatic cutting machine working-flow:
PLC sends cutting die pedestal signal in place and cutting die base position coordinate signal to para-position computing system, para-position computing system control vision take pictures assembly photographic head shooting photo, photo is transferred to para-position computing system, para-position computing system calculates the error amount of photo and basis reference photo, (concrete is that cutting die pedestal is horizontal with the side-play amount of the horizontal longitudinal direction of benchmark and the anglec of rotation to calculate photo, blanking table top is longitudinally, cutting die disc spins offset), and calculate cutting die pedestal laterally according to the current cutting die base position coordinate that PLC transmission is next, blanking table top is longitudinally, the displacement correction amount of cutting die dish, this correction is transferred to PLC correction data, PLC driving cutting die pedestal moves to accurate location and carries out severing, after severing completes, PLC control to move after cutting die pedestal in place after again send cutting die signal in place to para-position computing system, automatically constantly repeat by this control method。
It should be noted that the present invention can also need to carry out improving as follows or deformation according to real work in being embodied as:
One, cancelling vision to take pictures the illuminating lamp on assembly, as long as the illumination of cutting machine working region is enough, not designing illuminating lamp does not affect the realization of the present invention；
Two, vision is taken pictures assembly integration global design on cutting die pedestal, rather than fixed by support and cutting die pedestal, do not affect the realization of the present invention；
Three, vision assembly of taking pictures can not also be fixed with cutting die pedestal; it also may be designed as independent driving, but has common coordinate system with cutting die pedestal, and it is taken pictures contrast conting prior to cutting die pedestal self-movement to next severing position; so can save withdrawing step, improve severing efficiency further。
The present embodiment is illustrated with the severing of multilamellar vamp material, and this is the concrete application at shoe-making field of this cutting machine, but is not limited only to shoe-making field, possesses identical using value in industries such as leatherware processing, clothings。The content of description is in that to make professional and technical personnel in the field can understand technical scheme according to it and be carried out; can not limit the scope of the invention with it; all any deformation made according to present disclosure technology and retouching, each fall within protection scope of the present invention。Protection scope of the present invention is as the criterion with claims disclosure。
Claims (8)
1. a visual-alignment automatic cutting machine, including cutting machine framework, servomotor, actuating unit, leading screw, PLC, blanking table top, cutting die pedestal, cutting die dish, guide rail；Guide rail and leading screw are set in parallel in cutting machine framework, and cutting die pedestal is arranged on guide rail and leading screw, and its lower end arranges cutting die dish；Cutting die pedestal is under the control of PLC; the transverse movement on guide rail of cutting die pedestal is driven by servomotor rotational lead screw; actuating unit controls cutting die pedestal upper slitter mould and moves both vertically; fabric on blanking table top is carried out severing, it is characterised in that: also include vision and take pictures assembly and para-position computing system；Take pictures assembly and cutting die pedestal of vision is fixed, and itself and cutting die pedestal possess identical coordinate system；Vision is taken pictures has the signal of telecommunication to be connected between assembly with para-position computing system, and the picture data of shooting is transferred to para-position computing system by signal of telecommunication connection；Para-position computing system is the computer being calculated according to the control method of design and controlling, and possesses many group signals of telecommunication and be connected between its with PLC。
2. a kind of visual-alignment automatic cutting machine according to claim 1, it is characterised in that described vision assembly of taking pictures includes support and photographic head, and support is fixing with cutting die pedestal to be connected, and photographic head is fixed with support and is connected。
3. a kind of visual-alignment automatic cutting machine according to claim 1, it is characterised in that described vision assembly support of taking pictures also includes photographic head height adjustment mechanism, for regulating the height of photographic head, to adjust its shooting field range。
4. a kind of visual-alignment automatic cutting machine according to claim 1, it is characterised in that described vision assembly support lower end of taking pictures is additionally provided with illuminator, and it is for shooting the illumination that fabric region provides enough in advance。
5. a kind of visual-alignment automatic cutting machine according to claim 1, it is characterized in that, described para-position computing system is connected with the signal of telecommunication of PLC and includes: the signal of telecommunication that para-position computing system transmits horizontal, longitudinal direction and anglec of rotation correction to PLC connects；The signal of telecommunication that PLC transmits cutting die pedestal signal in place to para-position computing system connects；The signal of telecommunication that PLC transmits cutting die base position coordinate to para-position computing system connects。
6. the control method of a visual-alignment automatic cutting machine, it is characterised in that cutting die pedestal and vision take pictures assembly for being rigidly connected, and are synchronized with the movement, have common coordinate system；Vision assembly of taking pictures shoots under the control of para-position computing system and treats severing vamp material photo and photo is transferred to para-position computing system, the basis reference photo that the photo that para-position computing system carrys out thecamera head stores up with calculator memory is compared, calculate site error and correction, horizontal correction, longitudinal correction, rotation correction are transferred to PLC；PLC is laterally moved by correction by Serve Motor Control cutting die pedestal; control cutting die dish by rotation control mechanism to rotate by rotating correction; control blanking table top by longitudinal correction motion by automatic feed mechanism, control to have pressed severing action under the cutting die dish on cutting die pedestal by actuating unit；After severing completes; PLC retreats cutting die pedestal by step distance set in advance; after putting in place, cutting die base position coordinate and cutting die pedestal signal in place are transferred to para-position computing system; para-position computing system sends photographing instruction to vision assembly of taking pictures again, by the continuous palikinesia of above-mentioned control planning；After horizontal cutting sets cutter number, PLC drives blanking bench to wear dynamic fabric by automatic feeding system and vertically moves a cutting die distance, and PLC drives cutting die pedestal reverse execution severing, again by above-mentioned control planning palikinesia until shutting down。
7. the control method of visual-alignment automatic cutting machine according to claim 6, it is characterised in that described basis reference photo is determined in accordance with the following steps:
The first step: severing original position fixes one greatly in the monochromatic material of cutting die on blanking table top, manual operation cutting die pedestal moves to directly over monochromatic material, severing one cutter, and on monochromatic material, severing goes out a hole consistent with cutting die；
Second step: on the fabric preparing processing, start position the first sheet stock according to next sheet outer fabric panel of profile cutting, hole cut-parts being accurately aimed on blank sheet of paper places；
3rd step: manual operation cutting die pedestal moves to cut-parts place, makes the take pictures photographic head of assembly of vision be positioned at directly over cut-parts, shoots a photo, and photo is transferred to para-position computing system as basis reference photo；
4th step: on para-position computing system, chooses and contrasts obvious, readily identified point on photo and be set as reference point。
8. the control method of visual-alignment automatic cutting machine according to claim 7, it is characterised in that described monochromatic material is a blank sheet of paper。
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