阅读说明：本技术 一种ccd视觉对位机构 (CCD vision counterpoint mechanism ) 是由 高成文 高成明 陈云峰 于 2019-10-22 设计创作，主要内容包括：本发明公开一种CCD视觉对位机构,涉及印刷技术领域,包括控制器、两个移动组件、两个第一驱动装置和两个平行设置的相机跑台基座,各移动组件的两端分别与两个相机跑台基座滑动连接,移动组件包括相机跑台、两个跑台连接部件和至少一个相机组件,相机组件包括微调组件、CCD相机和第二驱动装置,相机跑台下端的两个跑台连接部件分别与两个相机跑台基座滑动连接,第二驱动装置用于驱动微调组件沿相机跑台的长度方向往复运动,微调组件上安装有CCD相机,第一驱动装置和第二驱动装置均与控制器连接,CCD相机与控制器通信连接。该机构中多个CCD相机分别独立运动进行产品对位,可对不同尺寸的产品高效对位,对位空间大,更为精准。(The invention discloses a CCD (charge coupled device) visual alignment mechanism, which relates to the technical field of printing and comprises a controller, two moving assemblies, two first driving devices and two camera running bases arranged in parallel, wherein two ends of each moving assembly are respectively connected with the two camera running bases in a sliding manner, each moving assembly comprises a camera running platform, two running platform connecting parts and at least one camera assembly, each camera assembly comprises a fine adjustment assembly, a CCD camera and a second driving device, the two running platform connecting parts at the lower end of each camera running platform are respectively connected with the two camera running platform bases in a sliding manner, the second driving device is used for driving the fine adjustment assembly to reciprocate along the length direction of each camera running platform, the fine adjustment assembly is provided with the CCD camera, the first driving devices and the second driving devices are both connected with the controller, and the CCD camera is in communication connection with the controller. A plurality of CCD cameras independently move respectively in the mechanism to align products, so that the products with different sizes can be aligned efficiently, and the alignment space is large and more accurate.)

1. A CCD visual alignment mechanism is characterized by comprising a controller, two moving assemblies, two first driving devices and two camera running bases which are arranged in parallel, wherein two ends of each moving assembly are respectively connected with the two camera running bases in a sliding mode, and the two first driving devices are respectively used for driving the two moving assemblies to move along the length direction of the camera running bases; the mobile component comprises a camera running platform, two running platform connecting components and at least one camera component, wherein the camera component comprises a fine adjustment component, a CCD camera and a second driving device, one of the camera running platform lower end is fixed on each of the two sides of the camera running platform lower end, the two running platform connecting components are respectively connected with the two camera running platform bases in a sliding mode, the second driving device is arranged on the upper surface of the camera running platform and used for driving the fine adjustment component to move in a reciprocating mode in the length direction of the camera running platform, the fine adjustment component is provided with the CCD camera, the first driving device and the second driving device are connected with the controller, the CCD camera is in communication connection with the controller, and the two camera running platform bases are used for being placed above the printing platform.

2. The CCD visual alignment mechanism of claim 1, wherein a first lead screw connecting block is disposed at a lower end of one of the running platform connecting blocks of the moving assembly, the first driving device comprises a first servo motor and a first lead screw assembly, a first guide rail is mounted at an inner side of each camera running platform base, two of the running platform connecting blocks on each moving assembly are respectively slidably connected with the two first guide rails, the first servo motor and the first lead screw assembly are both mounted on a lower surface of the camera running platform base, the first servo motor is used for driving the first lead screw assembly, the first lead screw connecting blocks on the two moving assemblies are respectively connected with the two first lead screw assemblies, and the first servo motor is connected with the controller.

3. The CCD visual alignment mechanism according to claim 2, wherein the first screw assembly comprises a first ball screw, a first screw nut and two first supporting seats, the two first supporting seats are respectively fixed at two ends of the lower surface of the camera running platform base, the first ball screw is installed in the two first supporting seats, one end of the first ball screw is connected with the first servo motor through a first coupler, the first screw nut is sleeved on the first ball screw, and the first screw connecting blocks on the two moving assemblies are respectively connected with the two first screw nuts.

4. The CCD visual alignment mechanism according to claim 2, wherein the running platform connecting component comprises a running platform connecting plate and first sliding blocks, the running platform connecting plate is vertically fixed at the lower end of the camera running platform, the first sliding blocks are fixed at the outer side of the running platform connecting plate, and the two first sliding blocks on each moving component are respectively connected with the two first guide rails in a sliding manner.

5. The CCD visual alignment mechanism according to claim 1, wherein the CCD camera comprises a camera lens and a camera ring light source, the fine adjustment assembly comprises a horizontal fine adjustment platform, a vertical fine adjustment platform, an L-shaped connecting plate, a lens mounting plate and a light source mounting plate, the L-shaped connecting plate comprises a transverse plate and a vertical plate, the transverse plate is fixed on the upper surface of the horizontal fine adjustment platform, the vertical fine adjustment platform is fixed on the outer side of the vertical plate, the light source mounting plate is fixed on the upper surface of the transverse plate, the camera ring light source is fixed on the lower end of the light source mounting plate, the lens mounting plate is fixed on the vertical fine adjustment platform, the camera lens is fixed on the lens mounting plate, the camera lens corresponds to the position of the camera ring light source, the second driving device is used for driving the horizontal fine adjustment platform to reciprocate along the length direction of the camera running, the adjusting direction of the horizontal fine-tuning platform is perpendicular to the moving direction of the horizontal fine-tuning platform driven by the second driving device.

6. The CCD visual alignment mechanism of claim 5, wherein the fine adjustment assembly further comprises a second lead screw connection block, the second driving device comprises a second servo motor and a second lead screw assembly, the second servo motor and the second lead screw assembly are both installed on the upper surface of the camera running platform, the second servo motor is used for driving the second lead screw assembly, the horizontal fine adjustment platform is connected with the second lead screw assembly through the second lead screw connection block, and the second servo motor is connected with the controller.

7. The CCD visual alignment mechanism of claim 6, wherein the second screw assembly comprises a second ball screw, a second screw nut and two second supporting seats, the two second supporting seats are fixed on the upper surface of the camera running platform, the second ball screw is installed in the two second supporting seats, one end of the second ball screw is connected with the second servo motor through a second coupler, the second screw nut is sleeved on the second ball screw, and the horizontal fine adjustment platform is connected with the second screw nut through the second screw connecting block.

8. The CCD visual alignment mechanism of claim 7, wherein the moving assembly further comprises a second guide rail and at least one second slider mounted on the second guide rail, the second guide rail is fixed on the upper surface of the camera running platform, the second guide rail is located below the second lead screw assemblies, and the second lead screw nut of each second lead screw assembly is fixedly connected with one second slider.

9. The CCD vision alignment mechanism of claim 1, wherein each moving assembly comprises two camera assemblies, and the two camera assemblies are symmetrically disposed on the upper surface of the camera treadmill.

Technical Field

The invention relates to the technical field of printing, in particular to a CCD (charge coupled device) visual alignment mechanism.

Background

With the development and progress of the society, in order to keep pace with the development of the times, the product taking and placing mode and the manual positioning mode executed by manual printing can not meet the market demand far away, so most manual and semi-automatic screen printing machines face upgrading and transformation or elimination of fates, and the efficient, flexible and accurate full-automatic positioning mode is a necessary trend. The existing CCD aligning mechanism is a camera which is fixedly installed below a working platform, a product is adsorbed on the working platform, a shooting hole is formed in the platform, the camera shoots and captures mark point information of the product from bottom to top, and final positioning is achieved through fine adjustment of the working platform. Such an alignment mechanism has disadvantages:

1. the adjusting space of the working platform is limited during alignment, the alignment range is small, alignment points are easy to miss, the applicability of the machine to products is reduced, and the single printed product does not meet the market requirement;

2. the camera shoots the back that the position is the product, because printing product back often contacts print platform, can cause certain wearing and tearing or mar, causes the counterpoint failure during the counterpoint easily to reduction in production efficiency.

Disclosure of Invention

In order to solve the technical problems, the invention provides a CCD visual alignment mechanism, wherein a plurality of CCD cameras respectively and independently move to align products, the products with different sizes can be efficiently aligned, and the alignment space is large and more accurate.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a CCD (charge coupled device) visual alignment mechanism which comprises a controller, two moving assemblies, two first driving devices and two camera running platform bases arranged in parallel, wherein two ends of each moving assembly are respectively connected with the two camera running platform bases in a sliding manner, and the two first driving devices are respectively used for driving the two moving assemblies to move along the length direction of the camera running platform bases; the mobile component comprises a camera running platform, two running platform connecting components and at least one camera component, wherein the camera component comprises a fine adjustment component, a CCD camera and a second driving device, one of the camera running platform lower end is fixed on each of the two sides of the camera running platform lower end, the two running platform connecting components are respectively connected with the two camera running platform bases in a sliding mode, the second driving device is arranged on the upper surface of the camera running platform and used for driving the fine adjustment component to move in a reciprocating mode in the length direction of the camera running platform, the fine adjustment component is provided with the CCD camera, the first driving device and the second driving device are connected with the controller, the CCD camera is in communication connection with the controller, and the two camera running platform bases are used for being placed above the printing platform.

Preferably, the lower end of one running platform connecting part of the moving assemblies is provided with a first lead screw connecting block, the first driving device comprises a first servo motor and a first lead screw assembly, a first guide rail is installed on the inner side of each camera running platform base, two running platform connecting parts on each moving assembly are respectively in sliding connection with the two first guide rails, the first servo motor and the first lead screw assembly are both installed on the lower surface of the camera running platform base, the first servo motor is used for driving the first lead screw assembly, the first lead screw connecting blocks on the two moving assemblies are respectively connected with the two first lead screw assemblies, and the first servo motor is connected with the controller.

Preferably, first lead screw subassembly includes first ball screw, first screw nut and two first supporting seats, two first supporting seats are fixed in respectively the camera runs the both ends of platform base lower surface, first ball screw install in two in the first supporting seat, the one end of first ball screw through first shaft coupling with a servo motor connects, first screw nut cover is located on the first ball screw, two on the removal subassembly first lead screw connecting block respectively with two first screw nut is connected.

Preferably, the running platform connecting part comprises a running platform connecting plate and first sliding blocks, the running platform connecting plate is vertically fixed at the lower end of the camera running platform, the first sliding blocks are fixed at the outer side of the running platform connecting plate, and the two first sliding blocks on each moving assembly are respectively in sliding connection with the two first guide rails.

Preferably, the CCD camera includes camera lens and camera annular light source, the fine setting subassembly includes horizontal fine setting platform, vertical fine setting platform, L shape connecting plate, camera lens mounting panel and light source mounting panel, L shape connecting plate includes diaphragm and riser, the diaphragm is fixed in the upper surface of horizontal fine setting platform, vertical fine setting platform is fixed in the outside of riser, the light source mounting panel is fixed in the upper surface of diaphragm, camera annular light source is fixed in the lower extreme of light source mounting panel, the camera lens mounting panel is fixed in on the vertical fine setting platform, the camera lens is fixed in on the camera lens mounting panel, the camera lens with camera annular light source position is corresponding, second drive arrangement is used for the drive horizontal fine setting platform is followed the length direction reciprocating motion of camera race table, the regulation direction of horizontal fine setting platform with the second drive arrangement drive the motion of horizontal fine setting platform The direction is vertical.

Preferably, the fine tuning assembly further comprises a second lead screw connecting block, the second driving device comprises a second servo motor and a second lead screw assembly, the second servo motor and the second lead screw assembly are both installed on the upper surface of the camera running platform, the second servo motor is used for driving the second lead screw assembly, the horizontal fine tuning platform is connected with the second lead screw assembly through the second lead screw connecting block, and the second servo motor is connected with the controller.

Preferably, the second screw assembly comprises a second ball screw, a second screw nut and two second supporting seats, the second supporting seats are fixed on the upper surface of the camera running platform, the second ball screw is installed in the second supporting seats, one end of the second ball screw is connected with the second servo motor through a second coupler, the second screw nut is sleeved on the second ball screw, and the horizontal fine adjustment platform is connected with the second screw nut through a second screw connecting block.

Preferably, the moving assembly further includes a second guide rail and at least one second slider mounted on the second guide rail, the second guide rail is fixed to the upper surface of the camera running platform, the second guide rail is located below the second lead screw assemblies, and the second lead screw nut of each second lead screw assembly is fixedly connected to one second slider.

Preferably, each of the moving assemblies comprises two camera assemblies, and the two camera assemblies are symmetrically arranged on the upper surface of the camera treadmill.

Compared with the prior art, the invention has the following technical effects:

the CCD visual alignment mechanism provided by the invention is arranged above the printing platform, the alignment position is arranged on the front side of a product, the alignment space is sufficient, the alignment range can be debugged according to the process requirement, the camera shoots the perfect alignment point during alignment, the alignment point is easier to succeed and is not easy to miss, the adjustment is simple and quick, the production efficiency is improved, and meanwhile, the front side of the printed product is better protected for the printing surface, so that the mark point is easier to read and is not easy to make mistakes. The CCD cameras can move independently, the contraposition diversity is improved, the products can be produced in different sizes, the contraposition can be perfectly finished, the requirements of social development are met, and further the fine adjustment assembly can finely adjust the distance and the focal distance according to the process requirements and the product positioning size so as to achieve the purpose that the best object distance of the cameras obtains the highest resolution and guarantee the photographing effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a CCD vision alignment mechanism provided by the present invention;

FIG. 2 is a schematic view of a moving assembly according to the present invention;

fig. 3 is a schematic view of the use and installation of the CCD vision alignment mechanism provided by the present invention.

Description of reference numerals: 1. a camera treadmill base; 2. a first guide rail; 3. a first ball screw; 4. a first support base; 5. a first servo motor; 6. a first coupling; 7. a first lead screw nut; 8. a moving assembly; 81. a camera running platform; 82. a second servo motor; 83. a second coupling; 84. a second ball screw; 85. a horizontal fine tuning platform; 86. vertically fine-tuning the platform; 87. an L-shaped connecting plate; 88. a light source mounting plate; 89. a camera ring light source; 810. a lens mounting plate; 811. a camera lens; 812. a second guide rail; 813. a second slider; 814. a running platform connecting plate; 815. a first slider; 816. a first lead screw connecting block; 9. a controller; 10. aligning the display; 11. a printing platform; 12. taking a material placing area; 13. a printing area.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a CCD visual alignment mechanism, wherein a plurality of CCD cameras respectively and independently move to align products, so that the products with different sizes can be efficiently aligned, and the alignment space is large and more accurate.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-2, the present embodiment provides a CCD vision alignment mechanism, which includes a controller 9, two moving assemblies 8, two first driving devices and two camera running platform bases 1 arranged in parallel, wherein two ends of each moving assembly 8 are respectively connected with the two camera running platform bases 1 in a sliding manner, and the two first driving devices are respectively used for driving the two moving assemblies 8 to move along the length direction of the camera running platform bases 1; moving assembly 8 includes camera race platform 81, two race platform adapting unit and at least one camera subassembly, the camera subassembly includes fine setting subassembly, CCD camera and second drive arrangement, the both sides of camera race platform 81 lower extreme are fixed with one respectively and run platform adapting unit, two run platform adapting unit respectively with two camera race platform base 1 sliding connection, second drive arrangement sets up in the upper surface that the platform 81 was run to the camera, second drive arrangement is used for driving fine setting subassembly along the camera length direction reciprocating motion of running platform 81, install the CCD camera on the fine setting subassembly, first drive arrangement and second drive arrangement all are connected with controller 9, CCD camera and controller 9 communication connection, two camera race platform base 1 is used for placing in printing platform 11 top.

In this embodiment, the number of the moving assemblies 8 is two, the moving assemblies 8 include two camera assemblies, and the two camera assemblies are symmetrically disposed on the upper surface of the camera platform 81.

As shown in fig. 3, the printing system includes a printing platform 11, a material taking and placing area 12, and an alignment display 10, the controller 9 is connected to the alignment display 10, and the alignment display 10 is used for displaying the alignment condition of the CCD camera photographing. In the initial position, the CCD vision alignment mechanism is positioned on the left side of the material taking and placing area 12, and the printing platform 11 does not influence the taking and placing of the printing materials by the printing platform 11. The printing material is adsorbed on the printing platform 11, the CCD contraposition mechanism is started, instructions are output on the controller 9 according to contraposition positions of products with different sizes, and the controller 9 enables the four CCD cameras to move to the positions above the marking points of the printing material to read shooting data by controlling the first driving device and the second driving device. The fine adjustment component can be adjusted to perform fine adjustment on the distance and the focal length according to the process requirements so as to achieve the optimal photographing effect of the camera, and the alignment condition of the CCD camera photographing is displayed on the alignment display 10. After the printing material is aligned, the printing mechanism returns to the initial position, and the printing platform 11 enters the printing area 13.

The CCD vision counterpoint mechanism in this embodiment sets up in printing platform 11 top, and the counterpoint position is positive at the product, and the counterpoint space is sufficient, and the counterpoint scope can be debugged according to the technological requirement, and the camera shoots intact counterpoint during the counterpoint, and is more easy to succeed, is difficult for missing the counterpoint, adjusts simply swiftly, improves production efficiency, and the printing product openly has received better protection for the printing face simultaneously, so, reads the mark point more easily and is difficult for makeing mistakes. The four CCD cameras can move independently, the alignment diversity is improved, the produced products can be replaced by different sizes, the alignment can be perfectly finished, and the requirements of social development are met. The full-automatic four-point counterpoint of CCD can be more accurate the precision of assurance printing product, and the counterpoint effect is more accurate quick than artifical counterpoint, realizes full-automatic counterpoint printing completely, and automatic control position adjustment is realized to the touch-sensitive screen of accessible controller 9.

Specifically, a first lead screw connecting block 816 is arranged at the lower end of one running platform connecting part of each moving assembly 8, the first driving device comprises a first servo motor 5 and a first lead screw assembly, a first guide rail 2 is installed at the inner side of each camera running platform base 1, the two running platform connecting parts on each moving assembly 8 are respectively connected with the two first guide rails 2 in a sliding manner, in the present embodiment, the running platform connecting part comprises a running platform connecting plate 814 and a first sliding block 815, the running platform connecting plate 814 is vertically fixed at the lower end of the camera running platform 81, the first sliding block 815 is fixed at the outer side of the running platform connecting plate 814, and the two first sliding blocks 815 on each moving assembly 8 are respectively connected with the two first guide rails 2 in a sliding manner; the first servo motor 5 and the first screw rod assembly are both installed on the lower surface of the camera running platform base 1, the first servo motor 5 is used for driving the first screw rod assembly, the first screw rod connecting blocks 816 on the two moving assemblies 8 are respectively connected with the two first screw rod assemblies, and the first servo motor 5 is connected with the controller 9.

The first screw assembly comprises a first ball screw 3, a first screw nut 7 and two first supporting seats 4, the two first supporting seats 4 are fixed at two ends of the lower surface of the camera running platform base 1 respectively, the first ball screw 3 is installed in the two first supporting seats 4, one end of the first ball screw 3 is connected with the first servo motor 5 through a first coupler 6, the first ball screw 3 is sleeved with the first screw nut 7, and first screw connecting blocks 816 on the two moving assemblies 8 are connected with the two first screw nuts 7 respectively. During operation, the controller 9 makes the first screw nut 7 in the first screw assembly reciprocate along the camera running platform base 1 length direction through controlling two first servo motors 5, and then makes the moving assembly 8 reciprocating motion connected with the first screw nut 7 through the first screw connecting block 816, and the moving assembly 8 can move up in the front-back direction, and the location is more accurate under making the moving assembly 8 automatic mode through adopting ball screw transmission mode.

Specifically, the CCD camera comprises a camera lens 811 and a camera annular light source 89, the fine adjustment component comprises a horizontal fine adjustment platform 85, a vertical fine adjustment platform 86, an L-shaped connecting plate 87, a lens mounting plate 810 and a light source mounting plate 88, the L-shaped connecting plate 87 comprises a horizontal plate and a vertical plate, the horizontal plate is fixed on the upper surface of the horizontal fine adjustment platform 85, the vertical fine adjustment platform 86 is fixed on the outer side of the vertical plate, the light source mounting plate 88 is fixed on the upper surface of the horizontal plate, the camera annular light source 89 is fixed on the lower end of the light source mounting plate 88, the lens mounting plate 810 is fixed on the vertical fine adjustment platform 86, so that the camera lens 811 is perpendicular to the printing platform 11, the camera lens 811 corresponds to the position of the camera annular light source 89, the second driving device is used for driving the horizontal fine adjustment platform 85 to reciprocate along the length direction of the camera running platform 81, and the adjustment direction of the horizontal fine adjustment platform 85 is perpendicular to the movement direction of the horizontal fine adjustment platform 85 driven by the second driving device. In this embodiment, the horizontal fine-tuning platform 85 and the vertical fine-tuning platform 86 are both manual fine-tuning platforms in the prior art, the camera lens 811 can be moved back and forth and up and down to achieve a fine-tuning effect by manually adjusting the handles of the horizontal fine-tuning platform 85 and the vertical fine-tuning platform 86, and the specific models of the manual fine-tuning platforms are HD40-X and HD 40-R.

The fine adjustment assembly further comprises a second lead screw connecting block, the second driving device comprises a second servo motor 82 and a second lead screw assembly, the second servo motor 82 and the second lead screw assembly are both installed on the upper surface of the camera running platform 81, the second servo motor 82 is used for driving the second lead screw assembly, the horizontal fine adjustment platform 85 is connected with the second lead screw assembly through the second lead screw connecting block, and the second servo motor 82 is connected with the controller 9.

The second screw assembly comprises a second ball screw 84, a second screw nut and two second supporting seats, the two second supporting seats are fixed on the upper surface of the camera running platform 81, the second ball screw 84 is installed in the two second supporting seats, one end of the second ball screw 84 is connected with the second servo motor 82 through a second coupler 83, the second ball screw 84 is sleeved with the second screw nut, and the horizontal fine-tuning platform 85 is connected with the second screw nut through a second screw connecting block.

During operation, the controller 9 controls the two second servo motors 82 to enable the second screw nuts in the second screw assembly to reciprocate along the length direction of the camera running platform 81, so that the fine adjustment assembly connected with the second screw nuts through the second screw connecting block and the CCD cameras mounted on the fine adjustment assembly can reciprocate, therefore, the four CCD cameras can move in the front-back direction and the left-right direction, when moving to the mark points, the focal length of the CCD cameras can be adjusted through the fine adjustment assembly, and the CCD cameras can be positioned more accurately in the automatic mode through the ball screw transmission mode.

In order to support and guide the fine adjustment assembly, the moving assembly 8 further includes a second guide 812 and two second sliding blocks 813 installed on the second guide 812, the second guide 812 is fixed on the upper surface of the camera running platform 81, the second guide 812 is located below the two second lead screw assemblies, and the second lead screw nut of each second lead screw assembly is fixedly connected with one second sliding block 813.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.