CN116214608A

CN116214608A - Numerical control cutting machine with bandwidth scanning camera and visual positioning control method

Info

Publication number: CN116214608A
Application number: CN202310297317.5A
Authority: CN
Inventors: 谢志义; 谢铭坤
Original assignee: Quanzhou Impulse Intelligent Machinery Co ltd
Current assignee: Quanzhou Impulse Intelligent Machinery Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-06-06

Abstract

The invention discloses a numerical control cutting machine with a bandwidth scanning camera and a visual positioning control method, wherein the wide scanning camera and the visual positioning control system are added on the basis of a main body frame of the traditional numerical control cutting machine, before materials such as leather, vamp, cloth and the like printed with patterns are cut, the wide scanning camera firstly scans and photographs the materials with the printed patterns, the visual positioning control system extracts outline and characteristics of an outer frame on a picture to obtain the coordinate position and the angle direction of the pattern to be cut, the numerical control cutting machine drives a cutting head to move above the pattern to be cut, the angle direction of a rotary cutter is consistent with the pattern to be cut, the cutting head presses a cutter die to finish cutting the materials, and compared with the traditional visual alignment automatic cutting machine which needs repeated photographing and repeated offset calculation, and only one accessory can be cut after photographing each time, the numerical control machine has the advantages that the machine can cut a plurality of accessories with a large area N by scanning photographing, and the precision and the production efficiency of cutting are greatly improved.

Description

Numerical control cutting machine with bandwidth scanning camera and visual positioning control method

Technical Field

The invention relates to the technical field of automatic cutting machines, in particular to a numerical control cutting machine capable of identifying leather printed with pattern trademarks, vamp and cloth for processing.

Background

The numerical control cutting machine is also called an automatic blanking machine, an automatic blanking machine and the like, and is applied to cutting and forming of non-metal materials such as leather, textile cloth, paper, rubber, packaging materials and the like by punching force generated by pushing a cutting die downwards through a machine head of the numerical control cutting machine.

Along with the great popularization of digital printing technology, people now often apply leather and cloth with printed patterns and trademarks to shoes, bags and suitcases and the like, the fabric is beautiful but increases difficulty in cutting technology, at present, a factory adopts a cutting die made of transparent acrylic, and the outline of the pattern on the material is cut by manually utilizing the transparency of the acrylic, but the cutting die has the problems of high cost and low efficiency, in order to solve the problems, manufacturers invent an automatic cutting machine with camera vision alignment, but the model adopts a common industrial camera, the image with low definition is deformed, the model has the defects of repeated photographing, repeated offset calculation, only cutting of one accessory for each photographing, low cutting accuracy and the like.

At present, as shown in fig. 1, an industrial camera a6 is arranged on the side edge of a machine head a1, the machine head a1 is hoisted to a portal frame a3 through a sliding block a2, a motor a7 rotates a screw rod a4 to drive the machine head a1 to transversely move left and right, a cutter die disc a5 on the machine head a1 rotates to change the cutter die direction, the machine head a1 moves downwards to press a cutter die for cutting materials, the industrial camera a6 is used for photographing materials, only one accessory can be cut when photographing each time of the existing visual alignment automatic cutting machine is found as shown in fig. 2, and offset is required to be repeatedly photographed and calculated.

Disclosure of Invention

In order to make up for the defects existing in the prior art, the invention discloses a numerical control cutting machine of a bandwidth scanning camera and a visual positioning control method, namely, the prior patent application number in my department is as follows: CN202211154493.5, a main frame and a visual positioning control system are added on the basis of the technical scheme of the full-automatic large-format gantry platform cutting machine, so that the materials such as leather, shoe uppers and the like printed with patterns can be rapidly cut in a large area and with high accuracy.

The invention relates to a numerical control cutting machine with a bandwidth scanning camera and a visual positioning control method, which comprises the following steps:

the U-axis servo feeding mechanism firstly conveys leather, vamp or cloth printed with patterns to the lower part of a Z-axis servo lifting cutting machine head from the rear part of a numerical control cutting machine, a wide scanning camera descends to be close to a material with printed patterns in a cutting area through a precision guide rail sliding table cylinder, a Y-axis servo front-back moving mechanism drives the wide scanning camera arranged at the side of an X-axis first cross beam of an X-axis servo left-right moving mechanism to horizontally move backwards to carry out scanning photographing, then the photographed picture is transmitted to a visual positioning control system, the visual positioning control system extracts outline and characteristics of an outer frame on the picture, the outline and characteristics of the outer frame are matched with a template which is manufactured in advance and has the same outline shape as the outer frame on the picture on the visual positioning control system, the similarity is adjustable, a herringbone graphic file with the size of 4mm is arranged at the center point of the template, the angle direction of the Y-shaped pattern is consistent with the initial angle direction of the cutting die, when the similarity between the outline of the outer frame on the picture and the characteristics and the template exceeds ninety percent, the matching is successful, and the similarity is lower than ninety percent, namely, the scanning pattern is incomplete or the pattern printed on the material is incomplete, the matching is not successful, after the matching is successful, the visual positioning control system can transmit a Y-shaped pattern file containing the coordinate position and the angle direction to the numerical control cutting machine, the pattern file is in a DXF or PLT format, the numerical control cutting machine drives the Y-axis servo front-back motion mechanism and the X-axis servo left-right motion mechanism to move the Z-axis servo lifting cutting machine head provided with the cutting die and the outline shape of the outer frame of the printing pattern to the position above the pattern to be cut according to the coordinate position and the angle direction of the Y-shaped pattern file of the visual positioning control system, the angle direction of the rotating cutting die of the R-axis servo cutting die rotating mechanism is consistent with the pattern to be cut, and the Z-axis servo lifting cutting machine head is pressed down to finish cutting the material with the printed pattern until all the patterns which are successfully matched by scanning and photographing are finished.

The invention adopts the following technical scheme:

the utility model provides a bandwidth width of cloth scanning camera's numerical control cutting machine, including big breadth longmen platform, Y axle servo back-and-forth movement mechanism, X axle servo left and right movement mechanism, Z axle servo lift cutting aircraft nose, R axle servo cutting die rotary mechanism and U axle servo feeding mechanism, Y axle servo back-and-forth movement mechanism and X axle servo left and right movement mechanism set up in big breadth longmen platform, Z axle servo lift cutting aircraft nose is installed on X axle servo left and right movement mechanism, its lower extreme is equipped with R axle servo cutting die rotary mechanism, Z axle servo lift cutting aircraft nose is located big breadth longmen platform and makes horizontal back-and-forth, left and right movement under the control of Y axle servo back-and-forth movement mechanism and X axle servo left and right movement mechanism, the angle direction of R axle servo cutting die rotary mechanism control cutting aircraft nose, the lift of Z axle servo lift cutting aircraft nose control R axle servo cutting die rotary mechanism, cut leather, vamp, cloth such as have the pattern printed on the U axle is cut to big breadth longmen platform, characterized in that: the wide scanning camera descends to get close to the material with printed patterns in the cutting area through the precise guide rail sliding table cylinder before cutting various materials with patterns printed with patterns such as leather, vamp, cloth and the like, the Y-axis servo motion mechanism drives the wide scanning camera arranged on the X-axis first beam to move backwards horizontally for scanning and photographing, then the photographed picture is transmitted to the visual positioning control system, the visual positioning control system extracts outline and characteristics of the picture, and performs similarity matching with a template which is manufactured in advance on the visual positioning control system and has the outline characteristics of the picture, the center point of the template is provided with a herringbone icon, the format is DXF, once the similarity set value is reached, namely, after matching is successful, a visual positioning control system sends the herringbone icon containing the coordinate position and the angle direction to a motion control system of a numerical control cutting machine, the numerical control cutting machine drives a Y-axis servo back-and-forth motion mechanism and an X-axis servo left-and-right motion mechanism to move a Z-axis servo lifting cutting machine head with the shape of a cutting die being the same as the outline of an outer frame of a printing pattern to be cut above the pattern to be cut according to the coordinate position and the angle of the herringbone icon of the visual positioning control system, an R-axis servo cutting machine head rotates the angle direction of the cutting die to be consistent with the pattern to be cut, the Z-axis servo lifting cutting machine head presses down to cut the material with the printing pattern, until all patterns successfully matched by scanning and photographing are completed; the wide scanning camera is connected with the visual positioning control system through a network cable, the shot picture is transmitted to the visual positioning control system through the network cable, and the visual positioning control system is connected with the motion control system of the numerical control cutting machine through the network cable.

The invention also discloses a visual positioning control method of the numerical control cutting machine of the bandwidth scanning camera, which is characterized by comprising the following steps:

the method comprises the following steps of:

the first step: a 30 mm-30 mm '' cutter mold is arranged at the center point of an R-axis cutter mold mounting plate in an R-axis cutter mold rotating mechanism of a Z-axis servo lifting cutting machine head on a numerical control cutting machine;

and a second step of: manufacturing a DXF file consistent with a character-shaped cutting die on CAD software, opening the DXF file by using numerical control cutting machine software at intervals of 100mm left, right and up and down from a X, Y axis zero point of a page of the numerical control cutting machine until a plate surface is full of the page, wherein the size of the plate surface has a relatively long stroke according to an X axis and a Y axis of the numerical control cutting machine;

and a third step of: placing a blank paperboard or fabric with a larger stroke than the X axis and the Y axis of the numerical control cutting machine above a U-axis cut-resistant conveying belt of a large-breadth lower pressure-bearing platform of the numerical control cutting machine, executing the DXF file on a software page by the numerical control cutting machine, and cutting all -shaped patterns on the blank paperboard or fabric;

fourth step: lowering the wide scanning camera to approach to the cut pattern, driving the wide scanning camera arranged on the first X-axis beam to horizontally move backwards by the Y-axis servo motion mechanism to carry out scanning shooting, and transmitting the shot picture to the visual positioning control system;

fifth step: the visual positioning control system performs recognition and correction according to the center point of the cross outline on the -shaped pattern on the picture, the relative coordinate positions of the wide scanning camera, the visual positioning control system and the numerical control cutting machine are calibrated and stored, then the visual positioning control system performs recognition and correction according to the -shaped outline on the picture, and the initial angle direction of the wide scanning camera, the visual positioning control system and the cutting die below the R-axis servo cutting die rotating mechanism of the numerical control cutting machine is calibrated and stored by utilizing the triangular point of the herringbone. The calibration aims to enable the wide scanning camera, the visual positioning control system and the numerical control cutting machine to have a common coordinate position and a common direction angle;

as can be seen from the above description of the structure of the present invention, compared with the existing vision alignment automatic cutting machine, the wide scanning camera of the present invention has the following advantages: the image 1:1 is outputted without distortion, so that the problem of distortion of the traditional camera lens is solved; positioning is more accurate (the limit positioning precision can reach 0.1 millimeter); the material with the pattern printed on a large area can be scanned and photographed at one time. The visual positioning control method is more accurate, simple and quick, does not need to repeatedly calculate the offset and the angle direction of the cutter die, and greatly improves the cutting accuracy and the production efficiency of materials such as leather, vamp and the like printed with patterns.

Drawings

FIG. 1 is a schematic diagram of a conventional vision alignment automatic cutting machine.

FIG. 2 is a schematic diagram of a conventional vision alignment automatic cutting machine for photographing alignment and cutting paths of a material printed with patterns.

Fig. 3 is a schematic plan view of the whole of the present invention.

Fig. 4 is a schematic top view of the present invention.

Fig. 5 is a schematic perspective view of the large-format upper bearing plate of the present invention after being removed.

Fig. 6 is a schematic diagram of a three-dimensional structure of a Y-axis servo back-and-forth motion mechanism and an X-axis servo left-right motion mechanism of the present invention.

Fig. 7 is a schematic diagram of the structure of fig. 6 a.

Fig. 8 is a schematic diagram of the structure of B in fig. 6.

Fig. 9 is a schematic perspective view of a wide scanning camera, a Y-axis servo back and forth motion mechanism, and an X-axis servo left and right motion mechanism according to the present invention.

Fig. 10 is a schematic diagram of the structure of E in fig. 9.

FIG. 11 is a schematic perspective view of a Z-axis servo lift cutting head and R-axis servo die rotation mechanism according to the present invention.

FIG. 12 is an exploded view of the Z-axis servo lift cutting head and R-axis servo die rotation mechanism of the present invention.

Fig. 13 is a schematic cross-sectional view of the present invention.

Fig. 14 is a schematic view of the structure of fig. 13C.

Fig. 15 is a schematic diagram of the structure of D in fig. 13.

FIG. 16 is a schematic view of the present invention for positioning and cutting a wide scan of a material printed with a pattern.

List of reference numerals

The device comprises a machine head a1, a sliding block a2, a portal frame a3, a screw rod a4, a cutter die plate a5, an industrial camera a6 and a motor a7.

The large-format upper bearing plate 11, the large-format lower bearing platform 12, the supporting connection column 13, the cutting die 53, the Y-axis servo motor 2, the Y-axis linear guide rail 21, the Y-axis supporting connection plate 22, the Y-axis rack 23, the Y-axis gear 24, the Y-axis track bracket 14, the Y-axis speed reducer 34, the Y-axis sliding block 32, the X-axis second beam 26, the X-axis first beam 27, the X-axis servo motor 29, the X-axis sliding flat plate 31, the X-axis linear guide rail 35, the X-axis rack 36, the X-axis sliding block 38, the X-axis speed reducer 39, the X-axis gear 40, the C-axis support plate 51, the Z-axis guide column 511, the Z-axis guide copper sleeve 33, the Z-axis guide column connection plate 7, the R-axis fixing plate 5, the R-axis cutting die mounting plate 52, the R-axis knife die rotation axis 521, the R-axis passive synchronous pulley 522, the R-axis synchronous belt 523, the R-axis knife die fixing plate 524, the R-axis main synchronous pulley 525, the U-axis feed roller bracket 18, the U-axis cut-resistant roller conveyor belt 6, the U-axis servo mechanism 8,U, the U-axis lower feed support plate 82, the U-axis upper feed clamp motor 83, the U-axis clamp plate 84, the U-axis clamp motor 84, the U-axis clamp plate 85, the U-axis servo motor thrust plate 25, the U-axis servo motor 1, the Z-axis servo motor thrust plate 25, the device comprises a base 41, an R-axis servo motor 65, a U-axis roller 48, an output screw spindle nose 45, an R-axis rotating bearing 60, a wide scanning camera 91, a precision guide rail sliding table cylinder 92, a visual positioning control system 93 and a motion control system 15.

Detailed Description

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

A numerical control cutting machine with a wide-width scanning camera comprises a large-width gantry platform, a Y-axis servo front-back motion mechanism, an X-axis servo left-right motion mechanism, a Z-axis servo lifting cutting machine head, an R-axis servo cutter rotating mechanism, a U-axis servo feeding mechanism, a wide-width scanning camera 91 and a visual positioning control system 93, wherein the Y-axis servo front-back motion mechanism and the X-axis servo left-right motion mechanism are arranged in the large-width gantry platform, the Z-axis servo lifting cutting machine head is arranged on the X-axis servo left-right motion mechanism, the lower end of the Z-axis servo lifting cutting machine head is provided with the R-axis servo cutter rotating mechanism, the Z-axis servo lifting cutting machine head is positioned in the large-width gantry platform to do horizontal front-back and left-right motion under the control of the Y-axis servo front-back motion mechanism and the X-axis servo left-right motion mechanism, the R-axis servo cutter rotating mechanism controls the angle direction of a cutter 53, the Z-axis servo lifting cutting machine head controls the lifting of a cutter 53 below the cutter rotating mechanism, cutting leather, vamp materials printed with patterns on a U-axis cutting-resistant conveyer belt 6 of the U-axis servo feeding mechanism in the large-width gantry platform are cut.

As shown in fig. 9 and 10, the wide scanning camera 91 is mounted on the side of the X-axis first beam 27 of the X-axis servo left-right movement mechanism, and specifically, the wide scanning camera 91 includes a precise rail sliding cylinder 92, the precise rail sliding cylinders 92 are respectively mounted on two ends of the side of the X-axis first beam 27 of the X-axis servo left-right movement mechanism, the wide scanning camera 91 is mounted on the precise rail sliding cylinders 92, and the precise rail sliding cylinder 92 is used for lifting the wide scanning camera 91. Before cutting various materials printed with patterns, such as leather, shoe uppers and the like printed with patterns, as shown in fig. 16, a wide scanning camera 91 descends to approach the materials with the printed patterns on the cutting areas through a precise guide rail sliding table cylinder 92, then a Y-axis servo motor 2 drives a Y-axis gear 24 through a Y-axis speed reducer 34, and the Y-axis support connecting plate 22 drives an X-axis first cross beam 27 and a Y-axis sliding block 32 to horizontally move backwards along a Y-axis linear guide rail 21 by utilizing the meshing between the Y-axis gear 24 and a Y-axis rack 23, so that the wide scanning camera 91 horizontally moves backwards to carry out scanning shooting; the photographed picture is then transmitted to a visual positioning control system 93, the visual positioning control system 93 extracts outline and characteristics of the picture, the outline and characteristics of the picture are subjected to similarity matching with a template which is manufactured in advance and is the same as the outline characteristics of the picture on the visual positioning control system 93, a Y-axis servo lifting cutting machine head is arranged above a pattern to be cut, the right center point of the template is provided with a Y-axis servo icon, the format is DXF, once a similarity set value is reached, that is, the visual positioning control system 93 sends the Y-axis icon containing coordinate positions and angle directions to a motion control system 15 of the numerical control cutting machine after the matching is successful, the numerical control cutting machine drives a Y-axis servo front-back motion mechanism and an X-axis servo left-right motion mechanism to move a Z-axis servo lifting cutting machine head which is provided with a cutting die 53 in the same shape as the outline of the printing pattern according to the coordinate positions and angles of the Y-axis servo front-back-and-forth motion mechanism of the visual positioning control system 93 to enable the Z-axis servo lifting cutting machine head to move above the pattern to be cut, the R-axis servo cutting die rotating mechanism rotates the angle direction of the cutting die 53 to be consistent with the pattern to be cut, and the Z-axis servo lifting cutting machine head presses down the material with the printing pattern to be cut with the printing pattern until all patterns to be scanned and matched are successfully is completed; and the wide scanning camera 91 is connected with the vision positioning control system 93 through a network cable, the shot picture is transmitted to the vision positioning control system 93 through the network cable, the vision positioning control system 93 is also connected with the motion control system 15 of the numerical control cutting machine through the network cable, specifically, as shown in fig. 3, the motion control system 15 is positioned at the middle position of the right side of the numerical control cutting machine, the vision positioning control system 93 is positioned beside the numerical control cutting machine, and the motion control system 15 is used for controlling the motions of the Y-axis servo front-back motion mechanism, the X-axis servo left-right motion mechanism, the Z-axis servo lifting cutting machine head, the R-axis servo cutting die rotating mechanism, the U-axis servo feeding mechanism and the wide scanning camera 91.

As shown in fig. 3, 4 and 5, the large-format gantry platform includes a large-format upper bearing plate 11, a large-format lower bearing platform 12, and supporting connection columns 13, where the large-format upper bearing plate 11 is installed above the large-format lower bearing platform 12 through a plurality of supporting connection columns 13, the large-format upper bearing plate 11 and the large-format lower bearing platform 12 are parallel to each other and are in a horizontal state, and are mainly used for bearing the impact force of a Z-axis servo lifting cutting machine head pushing a cutting die to cut down the material upwards, and Y-axis track brackets 14 are installed on the left and right sides above the large-format lower bearing platform 12.

As shown in fig. 6 and 7, the Y-axis servo back and forth movement mechanism comprises a Y-axis track bracket 14, a Y-axis linear guide 21, a Y-axis sliding block 32, a Y-axis gear 24, a Y-axis rack 23, a Y-axis servo motor 2, a Y-axis speed reducer 34 and a Y-axis support connecting plate 22, wherein the Y-axis linear guide 21 and the Y-axis rack 23 are respectively arranged on the Y-axis track bracket 14, the Y-axis sliding block 32 is arranged on the Y-axis linear guide 21, the Y-axis supporting connecting plate 22 is arranged on the Y-axis sliding block 32, the Y-axis speed reducer 34 is arranged in the middle above the Y-axis supporting connecting plate 22, the Y-axis gear 24 is meshed with the Y-axis rack 23, and the Y-axis servo motor 2 is arranged above the Y-axis speed reducer 34 and is mainly used for the front and back movement of the Z-axis servo lifting cutting machine head.

As shown in fig. 6, 8 and 10, the X-axis servo left-right movement mechanism comprises an X-axis first beam 27, an X-axis second beam 26, an X-axis linear guide 35, an X-axis slider 38, an X-axis gear 40, an X-axis rack 36, an X-axis servo motor 29, an X-axis speed reducer 39 and an X-axis sliding plate 31, wherein the X-axis first beam 27 and the X-axis second beam 26 are respectively mounted on the front and rear ends of the Y-axis support connection plate 22, the precise guide rail sliding table cylinders 92 are respectively mounted on the two sides of the X-axis first beam 27, the wide scanning camera 91 is mounted on the precise guide rail sliding table cylinders 92 on the two sides, the precise guide rail sliding table cylinders 92 are used for lifting and lowering the wide scanning camera 91, the X-axis first beam 27 is provided with the X-axis rack 36, the X-axis linear guide 35 is mounted on the X-axis linear guide 35, the X-axis second beam 26 is mounted with the X-axis linear guide 35, the X-axis slider 38 is mounted on the X-axis support connection plate 22, the X-axis speed reducer 39 is mounted on the X-axis sliding plate 31, and the X-axis speed reducer 39 is mounted on the left side of the X-axis servo motor 40 for lifting and lowering the X-axis servo motor 29 is mounted on the left side of the X-axis servo motor.

As shown in fig. 11, 12 and 14, the Z-axis servo lifting cutting machine head comprises a Z-axis high-thrust folding servo electric cylinder 1, a Z-axis guide post 511, a Z-axis guide copper sleeve 33 and a Z-axis guide post connecting plate 7, the Z-axis high-thrust folding servo electric cylinder 1 is installed in the middle of the upper part of the X-axis sliding plate 31, the base 41 of the Z-axis high-thrust folding servo electric cylinder 1 is assembled and tightly attached below the large-format upper bearing plate 11, and the output screw spindle nose 45 of the Z-axis high-thrust folding servo electric cylinder 1 passes through the X-axis sliding plate 31 and then is connected with the C-axis support plate 51 of the R-axis servo cutter rotating mechanism, and is mainly used for pushing the cutter die 53 to move downwards to cut materials.

As shown in fig. 12, the R-axis servo die rotating mechanism includes an R-axis fixing plate 5, a C-axis supporting plate 51, an R-axis servo motor 65, an R-axis main synchronizing wheel 525, an R-axis synchronizing belt 523, an R-axis passive synchronizing wheel 522, an R-axis die rotating shaft 521, an R-axis rotating bearing 60, an R-axis die mounting plate 52, and an R-axis die fixing piece 524, the C-axis supporting plate 51 is mounted above the R-axis fixing plate 5, the R-axis servo motor 65 is mounted on the left side of the R-axis fixing plate 5, the R-axis main synchronizing wheel 525 is mounted with an R-axis synchronizing belt 523, the other end of the R-axis synchronizing belt 523 is mounted with an R-axis passive synchronizing wheel 522, the R-axis rotating shaft 521 is mounted with an R-axis rotating bearing 60 in the middle of the R-axis passive synchronizing wheel 522, the other end of the R-axis die rotating shaft 521 is connected with the R-axis die mounting plate 52, the four-side die fixing piece 524 is mounted under the R-axis die 52, the R-axis die fixing plate 53 is mounted with an R-axis main synchronizing wheel 53, and the R-axis servo motor 65 is mounted with a guide shaft Z-direction guide shaft 511, and a Z-axis guide shaft is mounted on the R-direction guide shaft 511 is connected with a Z-axis guide shaft, and a Z-guide shaft is provided with a Z-guide shaft guide roller, and a Z-guide roller is provided for the Z-guide shaft guide roller is provided.

As shown in fig. 13 and 15, the U-axis servo feeding mechanism 8 includes a U-axis feeding roller bracket 18, a U-axis roller 48, a U-axis cut-resistant conveying belt 6, a U-axis feeding lower support plate 82, a U-axis feeding upper clamping plate 83, a U-axis clamping cylinder 84, a U-axis feeding push plate 85, a U-axis feeding screw rod 86, a U-axis servo motor 25 and a U-axis speed reducer 28, the front and rear sides of the large-format gantry platform are respectively provided with the U-axis feeding roller bracket 18, the front and rear sides of the U-axis feeding roller bracket 18 are respectively provided with the U-axis roller 48, the U-axis cut-resistant conveying belt 6 is mounted on the U-axis roller 48, a U-axis feeding lower support plate 82 is mounted with a U-axis feeding upper clamping plate 83 above the U-axis feeding upper clamping plate 83, a U-axis clamping cylinder 84 is mounted above the U-axis feeding lower support plate 82, a U-axis feeding push plate 85 is mounted below the U-axis feeding push plate 85, the U-axis feeding screw rod 86 is mounted with the U-axis speed reducer 28, the U-axis feeding screw rod 86 is connected with the U-axis speed reducer 28, and the U-axis speed reducer 28 is mounted with the U-axis servo motor 28, and the U-axis servo motor 25 is mounted on one side of the U-axis servo motor 25, when the U-axis feeding lower support plate 82 is required to rotate the U-axis feeding lower support plate 82 and the U-axis feeding lower support plate 82 is required to press the U-axis feeding lower support plate 82 and rotate along with the U-axis feeding shaft cut-axis feeding shaft 25.

In order to implement a visual positioning control method of a numerical control cutting machine with a wide-width scanning camera, the initial angular direction calibration of coordinates and a cutting die among the numerical control cutting machine, the wide-width scanning camera 91 and the visual positioning control system 93 is needed in the early stage, and the calibration comprises the following steps:

the first step: a '' shaped cutting die 53 with the size of 30mm is arranged at the right central point on an R-axis cutting die mounting plate 52 in an R-axis cutting die rotating mechanism of a Z-axis servo lifting cutting machine head on a numerical control cutting machine;

and a second step of: manufacturing a DXF file consistent with a character-shaped cutting die 53 on CAD software, opening the DXF file by using numerical control cutting machine software at intervals of 100mm from the X, Y axis zero point of a page of the numerical control cutting machine to full plate surface, wherein the size of the plate surface has a relatively long stroke according to the X axis and the Y axis of the numerical control cutting machine;

and a third step of: placing a blank paperboard or fabric with a larger stroke than the X axis and the Y axis of the numerical control cutting machine above the U-axis cut-resistant conveying belt 6 of the large-format lower pressure-bearing platform 12 of the numerical control cutting machine, executing the DXF file on a software page by the numerical control cutting machine, and cutting all -shaped patterns on the blank paperboard or fabric;

fourth step: lowering the wide scanning camera 91 to approach the pattern to be cut, driving the wide scanning camera 91 arranged on the X-axis first beam 27 to horizontally move backwards by a Y-axis servo motion mechanism to perform scanning and photographing, and transmitting the photographed picture to the visual positioning control system 93;

fifth step: the visual positioning control system 93 performs recognition and correction according to the center point of the cross outline on the -shaped pattern on the picture, the relative coordinate positions of the wide scanning camera 91, the visual positioning control system 93 and the numerical control cutting machine are calibrated and stored, and then the visual positioning control system 93 performs recognition and correction according to the -shaped outline on the picture, and the initial angle direction of the wide scanning camera 91 and the cutting die 53 below the R-axis servo cutting die rotating mechanism of the visual positioning control system 93 and the numerical control cutting machine is calibrated and stored by utilizing the triangular point of the herringbone. The purpose of the calibration is to have the broad scan camera 91 and the vision positioning control system 93 and the numerical control cutting machine have a common coordinate position and orientation angle of the cutting die 53.

The cutting method of the numerical control cutting machine comprises the following steps:

the first step: the rear part of the large-breadth gantry platform is a feeding end, the front part is a discharging end, a U-shaft clamping cylinder 84 of a U-shaft servo feeding mechanism is pressed down and simultaneously clamps materials printed with patterns on a U-shaft cut-resistant conveying belt 6 and a U-shaft feeding lower supporting plate 82, a U-shaft servo motor 25 drives a U-shaft speed reducer 28 and a U-shaft feeding screw 86 to rotate so as to push a U-shaft feeding push plate 85, the U-shaft feeding lower supporting plate 82, the U-shaft cut-resistant conveying belt 6 and the materials printed with patterns to move forwards together, and materials printed with patterns such as leather, shoe uppers and the like are conveyed to the position below a cutter die 53 of a Z-shaft servo lifting cutting machine head;

and a second step of: the wide scanning camera 91 descends to be close to the material with the printed pattern in the cutting area through the precise guide rail sliding table cylinder 92;

and a third step of: the Y-axis servo front-back motion mechanism drives a wide scanning camera 91 arranged on the side of an X-axis first cross beam 27 of the X-axis servo left-right motion mechanism to horizontally move backwards for scanning and photographing, and a JPG picture is obtained;

fourth step: the JPG picture obtained by photographing is transmitted to a visual positioning control system 93;

fifth step: the visual positioning control system 93 extracts outline and characteristics of an outer frame on the picture, and then performs similarity matching with a template which is manufactured in advance on the visual positioning control system 93 and is consistent with the outline of the outer frame on the picture, the similarity is adjustable, a right-centered point of the template is provided with a 'herringbone' graphic file with the size of 4mm x 4mm, and the angle direction of the 'herringbone' is consistent with the initial angle direction of the cutting die 53;

sixth step: the matching is successful when the similarity between the outline features of the outer frame on the picture and the template is more than ninety percent, if the similarity is less than ninety percent, the matching is unsuccessful because the scanning pattern of the wide scanning camera 91 is incomplete or the pattern deformation printed on the material is incomplete, and after the matching is successful, the visual positioning control system 93 transmits a 'herringbone' pattern file containing the coordinate position and the angle direction to the numerical control cutting machine, and the pattern file is in the form of DXF or PLT;

seventh step: the numerical control cutting machine drives the Y-axis servo back and forth movement mechanism and the X-axis servo left and right movement mechanism to move the Z-axis servo lifting cutting machine head provided with the cutting die 53 with the shape identical to that of the outline frame of the printing pattern to the upper part of the pattern to be cut according to the coordinate position and the angle direction of the herringbone file in the visual positioning control system 93, the angle direction of the rotating cutting die of the R-axis servo cutting die rotating mechanism is consistent with the pattern to be cut, and the Z-axis servo lifting cutting machine head is pressed down to finish cutting the material with the pattern printed until all patterns which are successfully matched by scanning, photographing and photographing are finished.

In addition, it should be noted that, in the implementation of the present invention, the following modifications or variations may be made according to actual working requirements:

the Z-axis servo lifting cutting machine head can also adopt a common hydraulic cylinder cutting machine head or an air cylinder cutting machine head instead of the Z-axis high-thrust folding servo electric cylinder 1.

For the numerical control cutting machine without the Y-axis servo front-back movement mechanism, the wide scanning camera 91 and the precise guide rail sliding table cylinder 92 can not be arranged on the side of the X-axis first cross beam and synchronously move along with the X-axis first cross beam 27, and the wide scanning camera 91 and the precise guide rail sliding table cylinder 92 can be arranged on two sides of the large-width lower pressure-bearing platform 12, so that the wide scanning camera 91 is arranged above the U-axis servo feeding mechanism 8, and the U-axis servo feeding mechanism 8 drives the material printed with the patterns to move forward below the wide scanning camera 91 to finish scanning photographing.

In the description of the present embodiment and the description, some terms such as "calibration", "template", "matching", "", "man", "100mm", "DXF", "PLT", "30mm X30 mm", "4mm X4 mm", "ninety percent", "N", "X", "Y", "Z", "U", "R", "large format", "horizontal", "front-back", "left-right", "up-down", etc. are only for describing the present invention and simplifying the description, and therefore should not be construed as limiting the present invention.

The above embodiments are only for illustrating the technical solution of the present invention, but not for limiting the same, and it should not be considered that the specific embodiments of the present invention are limited to these illustrations, and those skilled in the art may still modify the foregoing embodiments or make equivalent substitutions for some of the technical features thereof, and these modifications or substitutions should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a bandwidth width of cloth scanning camera's numerical control cutting machine, including big breadth longmen platform, Y axle servo back-and-forth movement mechanism, X axle servo left and right movement mechanism, Z axle servo lift cutting aircraft nose, R axle servo cutting die rotary mechanism and U axle servo feeding mechanism, Y axle servo back-and-forth movement mechanism and X axle servo left and right movement mechanism set up in big breadth longmen platform, Z axle servo lift cutting aircraft nose is installed on X axle servo left and right movement mechanism, its lower extreme is equipped with R axle servo cutting die rotary mechanism, Z axle servo lift cutting aircraft nose is located big breadth longmen platform and does horizontal back-and-forth, left and right movement under the control of Y axle servo back-and-forth movement mechanism and X axle servo left and right movement mechanism, the angle direction of R axle servo cutting die rotary mechanism control R axle servo cutting aircraft nose is the lift of cutting die rotary mechanism, the leather of pattern has been printed on the U axle servo feeding mechanism's in the big breadth longmen platform, vamp, wait cloth is cut, its characterized in that: the wide scanning camera descends to get close to the material with printed patterns in the cutting area through the precise guide rail sliding table cylinder before cutting various materials printed with patterns such as leather, vamp, cloth and the like, the Y-axis servo motion mechanism drives the wide scanning camera arranged on the X-axis first beam to horizontally move backwards to scan and photograph, then the photographed picture is transmitted to the visual positioning control system, the visual positioning control system extracts outline and characteristics of the outer frame on the picture, and performs similarity matching with a template which is manufactured in advance on the visual positioning control system and has the outline characteristics of the outer frame on the picture, the center point of the template is provided with a herringbone icon, the format is DXF, once the similarity set value is reached, namely, after matching is successful, a visual positioning control system sends the herringbone icon containing the coordinate position and the angle direction to a motion control system of a numerical control cutting machine, the numerical control cutting machine drives a Y-axis servo back-and-forth motion mechanism and an X-axis servo left-and-right motion mechanism to move a Z-axis servo lifting cutting machine head with the shape of a cutting die being the same as the outline of an outer frame of a printing pattern to be cut above the pattern to be cut according to the coordinate position and the angle of the herringbone icon of the visual positioning control system, an R-axis servo cutting machine head rotates the angle direction of the cutting die to be consistent with the pattern to be cut, the Z-axis servo lifting cutting machine head presses down to cut the material with the printing pattern, until all patterns successfully matched by scanning and photographing are completed; the wide scanning camera is connected with the visual positioning control system through a network cable, the shot picture is transmitted to the visual positioning control system through the network cable, and the visual positioning control system is connected with the motion control system of the numerical control cutting machine through the network cable.

2. A method of controlling the visual positioning of a digital controlled cutting machine with a bandwidth scanning camera as claimed in claim 1, comprising:

the method comprises the following steps of:

the first step: a 30 mm-30 mm '' shaped cutting die is arranged at the center point of an R-axis cutting die mounting plate below an R-axis cutting die rotating mechanism of a Z-axis servo lifting cutting machine head on a numerical control cutting machine;

and a second step of: manufacturing a DXF format file consistent with a character-shaped cutting die by using CAD software, opening the DXF format file by using the numerical control cutting machine software at intervals of 100mm left, right and up and down from a X, Y axis zero point of a page of the numerical control cutting machine until a plate surface is full, wherein the size of the plate surface has a relatively long distance according to an X axis and a Y axis of the numerical control cutting machine;

fifth step: the visual positioning control system performs recognition and correction according to the center point of the cross outline on the -shaped pattern on the picture, the relative coordinate positions of the wide scanning camera, the visual positioning control system and the numerical control cutting machine are calibrated and stored, then the visual positioning control system performs recognition and correction according to the -shaped outline on the -shaped pattern on the picture, the initial angle direction of the wide scanning camera, the visual positioning control system and the cutting die below the R-axis servo cutting die rotating mechanism of the numerical control cutting machine is calibrated by utilizing the triangular point of the herringbone, and the calibration aims to enable the wide scanning camera, the visual positioning control system and the numerical control cutting machine to have a common coordinate position and direction angle.