A double-station laser coding device and its operation method

Abstract

The invention discloses a double-station laser coding device and an operation method thereof. The device comprises a frame, a first coding platform mechanism, a second coding platform mechanism, a laser coding mechanism, a first code scanning platform mechanism, a second code scanning platform mechanism, a code scanning mechanism, a material moving mechanism, a product feeding mechanism and a product receiving frame. The invention adopts two groups of coding platform mechanisms, and is equipped with two groups of lasers and CCD galvanometer coaxial components to form double-station laser coding, which are independently controlled and do not affect each other, and are equivalent to integrating two single-station laser coding devices, thereby greatly improving the coding efficiency. Two groups of code scanning platform mechanisms are adopted to form double-station code scanning, and a common set of scanning mechanisms are used. The double stations alternately operate to scan codes, and the working time of the scanning mechanisms is fully utilized, thereby greatly improving the scanning efficiency. The invention has both coding and scanning functions, and integrates coding and scanning on one device, thereby reducing a scanning process, a set of scanning equipment and labor, thereby improving production efficiency and reducing costs.

Description

Technical Field

[0001] The invention relates to the technical field of laser processing, and in particular to a double-station laser coding device and an operating method thereof. Background Art

[0002] With the development of laser technology, more and more industries are using laser marking to replace other marking methods such as inkjet, such as circuit boards, mobile phones and other consumer electronic products. Most of the existing laser marking machines are single-station, with low production efficiency. There are also a few dual-station laser coding machines, which work alternately. Two sets of loading and unloading devices are set for the two stations to correspond to the loading and unloading of the two stations, resulting in a complex structure of the whole equipment, large equipment size and high unit price. There are also turntable multi-station laser coding machines, but due to the structural limitations of the turntable, it is only suitable for coding small products, with a small processing application range, and most of the existing laser coding machines only have laser coding functions, without other functions such as scanning codes. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a double-station laser coding equipment with both coding and scanning functions, so as to improve the coding and scanning efficiency and reduce the equipment cost.

[0004] In order to achieve the above object, the solution of the present invention is:

[0005] A double-station laser coding device, comprising a frame with a workbench on the top surface, a first coding platform mechanism, a second coding platform mechanism, a laser coding mechanism, a first code scanning platform mechanism, a second code scanning platform mechanism, a code scanning mechanism, a material moving mechanism, a product feeding mechanism and a product receiving frame;

[0006] The first coding platform mechanism and the second coding platform mechanism are arranged side by side on one side of the workbench of the frame, the first coding platform mechanism has a first coding platform, and the second coding platform mechanism has a second coding platform;

[0007] The laser coding mechanism includes a gantry, a first laser, a second laser, a first CCD galvanometer coaxial assembly, a second CCD galvanometer coaxial assembly, a first light source and a second light source, the gantry is arranged above the first code scanning platform mechanism and the second code scanning platform mechanism, the first laser and the second laser are arranged side by side on the gantry, the laser heads of the first laser and the second laser are facing downward, the first CCD galvanometer coaxial assembly and the second CCD galvanometer coaxial assembly are arranged side by side on the gantry and are located below the first laser and the second laser, the top of the first CCD galvanometer coaxial assembly is provided with a first laser inlet corresponding to the first laser, the top of the second CCD galvanometer coaxial assembly is provided with a second laser inlet corresponding to the second laser, the first light source is arranged below the first CCD galvanometer coaxial assembly, and the second light source is arranged below the second CCD galvanometer coaxial assembly;

[0008] The first code scanning platform mechanism and the second code scanning platform mechanism are arranged side by side on the working table of the frame and are located on one side of the gantry of the laser coding mechanism. The first code scanning platform mechanism has a first code scanning platform, and the second code scanning platform mechanism has a second code scanning platform.

[0009] The code scanning mechanism includes a scanning linear module and a code reading module. The scanning linear module is horizontally arranged above the corresponding first code scanning platform mechanism and the second code scanning platform mechanism. The code reading module is slidably arranged on the scanning linear module, so that the scanning linear module can drive the code reading module to move back and forth between the first code scanning platform mechanism and the second code scanning platform mechanism.

[0010] The material transfer mechanism is arranged on a workbench in front of the first coding platform mechanism, the second coding platform mechanism, the first code scanning platform mechanism and the second code scanning platform mechanism. The material transfer mechanism includes a robot and a material suction fixture. The robot has a swing arm, and the swing arm is rotatably arranged on the workbench of the frame. The material suction fixture includes a nozzle mounting plate and a vacuum nozzle. The nozzle mounting plate is arranged on the swing arm. One side of the bottom surface of the nozzle mounting plate is provided with a plurality of vacuum nozzles to form a first suction cup, and the other side of the bottom surface of the nozzle mounting plate is provided with a plurality of vacuum nozzles to form a second suction cup.

[0011] The product feeding mechanism and the product storage frame are arranged within the travel range of the robot's swing arm.

[0012] Furthermore, the first coding platform mechanism includes a coding Y-axis linear module, a coding Y-axis linear guide, a first coding platform, a coding platform mounting plate, a coding X-axis linear guide and a coding X-axis linear module. The first coding platform can be used for vacuum adsorption products. The coding platform mounting plate can be slidably arranged on the coding Y-axis linear module and the coding Y-axis linear guide, so that the coding Y-axis linear module can drive the coding platform mounting plate to reciprocate along the coding Y-axis linear guide. The coding X-axis linear guide and the coding X-axis linear module are arranged on the coding platform mounting plate. The first coding platform is installed on the coding X-axis linear guide and the coding X-axis linear module, so that the coding X-axis linear module can drive the first coding platform to reciprocate along the X-axis direction. The second coding platform mechanism has the same structure as the first scanning platform mechanism. The first coding platform can be driven to reciprocate in the X- and Y-axis directions by the linkage of the coding Y-axis linear module and the coding X-axis linear module, which can improve the product processing size and processing flexibility.

[0013] Furthermore, the first laser and the second laser may be ultraviolet lasers, fiber lasers, infrared lasers or green lasers.

[0014] Furthermore, the first CCD galvanometer coaxial assembly includes a Z-axis linear module, a module mounting frame and a CCD galvanometer coaxial module. The Z-axis linear module is installed on the gantry. Z-axis linear guides are arranged on both sides of the Z-axis linear module. The Z-axis linear guides can improve the stability of the operation of the Z-axis linear module. The module mounting frame is installed on the Z-axis linear module. The CCD galvanometer coaxial module is arranged on the module mounting frame. The Z-axis linear module can drive the module mounting frame and the CCD galvanometer coaxial module to slide up and down along the Z-axis linear guide. The CCD galvanometer coaxial module includes a galvanometer group and a CCD camera. The CCD galvanometer coaxial module merges the optical path of the CCD camera and the optical path of the laser into a coaxial optical path, which is then scanned and output by the galvanometer group.

[0015] Furthermore, the CCD galvanometer coaxial module includes a reflector, a CCD camera, a beam combiner, a galvanometer group and a field mirror. The reflector, the beam combiner, the galvanometer group and the field mirror are arranged in sequence according to the transmission path of the laser light path. The reflector is arranged below the laser entrance, the beam combiner is arranged in front of the output end of the reflector, the galvanometer group includes an X-axis galvanometer and a Y-axis galvanometer, the galvanometer group is arranged in front of the output end of the beam combiner, the field mirror is arranged below the output end of the galvanometer group and at the bottom of the side of the galvanometer group away from the laser entrance, the field mirror protrudes from the bottom of the module mounting frame, the CCD camera is arranged on the other input end side of the beam combiner, and the second CCD galvanometer coaxial assembly has the same structure as the first CCD galvanometer coaxial assembly. The laser output by the first laser and the second laser enters the laser entrance of the first CCD galvanometer coaxial module and the second CCD galvanometer coaxial module respectively through the laser optical path, and enters the beam combiner after being reflected by the reflector. After being combined with the optical path of the CCD camera by the beam combiner into a coaxial optical path, it is scanned by the X and Y axes of the galvanometer group and then output to the coding platform through the field lens. The optical path of the CCD camera and the optical path of the first laser are combined into a coaxial optical path. Therefore, the range of visual positioning of the CCD camera matches the range of scanning by the galvanometer, ensuring accurate adjustment and positioning of the laser, improving the accuracy of laser coding, and helping to improve product processing quality.

[0016] Furthermore, the CCD galvanometer coaxial module may also include a distance measurement module for measuring focal length, and the distance measurement module may be a laser distance measurement module or an infrared distance measurement module.

[0017] Furthermore, the first light source and the second light source are ring-shaped light sources or bar-shaped sources.

[0018] Furthermore, the first code scanning platform mechanism includes a code scanning linear module and a first code scanning platform. The first code scanning platform is installed on the code scanning linear module so that the code scanning linear module can drive the first code scanning platform to reciprocate. The second code scanning platform mechanism has the same structure as the first code scanning platform mechanism.

[0019] Furthermore, the code reading module can be a barcode decoder that can directly scan and read the barcode information on the product. The code reading module can also be a camera module, which includes a CCD camera and a light source. The camera module cooperates with the code reading software to scan and read the barcode information on the product.

[0020] Furthermore, the barcode reading module has a barcode scanning function or a barcode scanning and barcode rating function.

[0021] Furthermore, in order to improve the stability of the operation of the code scanning mechanism, the scanning linear module is also equipped with a scanning linear guide rail, the scanning linear guide rail is arranged corresponding to the scanning linear module, and the code reading module is arranged on the scanning linear module and the scanning linear guide rail.

[0022] Furthermore, the code scanning mechanism also includes a code scanning Z-axis linear module, which is arranged on the scanning linear module, and the code reading module is arranged on the code scanning Z-axis linear module. The scanning linear module and the code scanning Z-axis linear module are linked to drive the code reading module to reciprocate in the X and Z axis directions, which is used to adapt to the scanning of products of various thicknesses and types, and improve the scanning range and scanning accuracy.

[0023] Furthermore, the code scanning mechanism also includes a marking part, which is arranged on the code scanning Z-axis linear module and is located on one side of the code reading module. The scanning linear module and the code scanning Z-axis linear module are linked to drive the marking part and the code reading module to reciprocate in the X and Z axis directions, which is used to mark defective products after scanning.

[0024] Furthermore, the marking part is any one of a marking pen, a marking stamp, a small inkjet module or a small laser marking module.

[0025] Furthermore, the robot of the material transfer mechanism is a four-axis robot or a six-axis robot with a swing arm.

[0026] Furthermore, the product feeding mechanism includes a screw motor and a material carrying device. The screw motor is arranged on the workbench of the frame, and the screw motor is equipped with a screw. The material carrying device is arranged on the screw of the screw motor. The screw motor drives the material carrying device to step and lift.

[0027] Furthermore, the product feeding mechanism also includes bearings, guide pillars and guide pillar base plates. The material carrying device is a material frame assembly. Multiple guide pillars are arranged between the material frame assembly and the guide pillar base plate. One end of each guide pillar is connected to the bottom of the material frame assembly, and the other end is connected to the guide pillar base plate. The screw motor is arranged on the working table of the frame, and the screw motor is equipped with a screw. One end of the screw is connected to the material frame assembly, and the other end of the screw is connected to the guide pillar base plate. Multiple bearings are arranged on the working table of the frame and are correspondingly sleeved on multiple guide pillars. The screw motor drives the material frame assembly to step and lift. The material frame assembly is used to place materials.

[0028] Furthermore, the material frame assembly includes a slide rail fixing plate, a drawer slide rail, a slide rail connecting plate, a material frame tray and a material frame; the slide rail fixing plate is arranged on the top of multiple guide columns, the drawer slide rail is arranged on the slide rail fixing plate, the slide rail connecting plate is an L-shaped structure, one end of the slide rail connecting plate is connected to the material frame tray, and the other end of the slide rail connecting plate is connected to the drawer slide rail, and the material frame is placed on the material frame tray.

[0029] Furthermore, in order to facilitate product positioning, a positioning groove is provided on the material frame, and the positioning groove is used to place a product limiting member so that the product is positioned in the material frame.

[0030] Furthermore, in order to mitigate the impact force of the product rising or falling, the product feeding mechanism also includes a buffer pad, which is arranged on each guide column between the material frame assembly and the bearing.

[0031] Furthermore, the product feeding mechanism also includes bearings, guide columns, guide column base plates and lifting plates. The material carrying device is a material carrier plate. The screw motor is arranged on the working table of the frame, and the screw motor is equipped with a screw. One end of the screw is connected to the lifting plate, and the other end of the screw is connected to the guide column base plate. Multiple guide columns are arranged between the lifting plate and the guide column base plate. Each guide column is respectively equipped with a bearing. Each bearing is arranged on the working table of the frame corresponding to each guide column. The material carrier plate is arranged on the lifting plate. The screw motor drives the lifting plate and the material carrier plate to step and lift. The material carrier plate is used to place materials.

[0032] Furthermore, the product loading mechanism also includes a material frame assembly, which includes a slide rail fixing plate, a drawer slide rail, a slide rail connecting plate, a material frame tray, a material frame and a material carrier plate; the slide rail fixing plate is arranged on the workbench of the frame, the drawer slide rail is arranged on the slide rail fixing plate, the slide rail connecting plate is an L-shaped structure, one end of the slide rail connecting plate is connected to the material frame tray, and the other end of the slide rail connecting plate is connected to the drawer slide rail, the material frame is placed on the material frame tray, and the middle area of ​​the material frame tray and the material frame are respectively provided with windows for the lifting plate to pass through, and the window size is smaller than the material carrier plate size, the material carrier plate can be placed on the inner edge of the material frame in a lap manner, the screw motor drives the lifting plate to lift the material carrier plate and makes the lifting plate and the material carrier plate step by step, and the material carrier plate is used to place materials. The material carrier plate is designed to be separated from the material frame, the screw motor only lifts the material carrier plate and the products thereon, and the material frame does not need to rise, which can reduce the impact on the material retrieval space and make the operation more flexible.

[0033] Furthermore, in order to facilitate product positioning, a plurality of positioning grooves are provided on the material carrier for placing product limiting members so that the product is positioned and placed on the material carrier.

[0034] Furthermore, the product material receiving frame includes a material frame support frame, a material frame drawer slide rail, a material frame slide rail connecting plate and a material receiving frame. The material frame support frame is arranged on the workbench of the frame, the material frame drawer slide rail is arranged on the material frame support frame, the material frame slide rail connecting plate is an L-shaped structure, one end of the material frame slide rail connecting plate is connected to the material frame drawer slide rail, and the other end of the material frame slide rail connecting plate is connected to the material receiving frame.

[0035] Furthermore, the double-station laser coding equipment of the present invention also includes a camera, which is an upper camera and / or a lower camera. The upper camera is arranged above the product feeding mechanism and its lens is facing the product feeding mechanism; the lower camera is arranged on a workbench within the travel range of the material transfer mechanism and its lens is arranged upward.

[0036] Furthermore, since some products are stacked using partitions, in order to meet the production requirements of stacked products with partition isolation, the present invention has a partition processing function. The double-station laser coding equipment also includes a partition loading mechanism and a partition receiving frame. The partition loading mechanism has the same structure as the product loading mechanism, and the partition receiving frame has the same structure as the product receiving frame. The partition loading mechanism and the partition receiving frame are both located within the travel range of the material moving mechanism.

[0037] Furthermore, in order to distinguish and place defective products, the double-station laser coding equipment also includes a defective product receiving frame. The defective product receiving frame is arranged within the travel range of the material transfer mechanism, and the unqualified products can be placed separately to distinguish OK products from NG products.

[0038] Another object of the present invention is to overcome the shortcomings of the prior art and provide an operating method for a dual-station laser coding device with both coding and scanning functions, thereby improving the coding and scanning efficiency and reducing the equipment cost.

[0039] To achieve the above object, the technical solution adopted by the present invention is:

[0040] An operating method of a double-station laser coding device, wherein products to be scanned are separated by partitions and placed on a product feeding mechanism, comprising the following steps:

[0041] Step A: The robot swing arm of the material transfer mechanism drives the suction jig to the top of the product feeding mechanism, the suction jig descends, and after the second suction cup sucks the partition, the robot drives the suction jig to rotate, and the suction jig descends again, the first suction cup sucks the product, and at the same time, the second suction cup places the partition into the partition receiving frame;

[0042] Step B: The material transfer mechanism transfers the product on the first suction cup to the first coding platform of the first coding platform mechanism;

[0043] Step C: The first coding platform mechanism drives the first coding platform to the bottom of the first CCD galvanometer coaxial assembly of the laser coding mechanism, and the first coding platform mechanism cooperates with the first laser and the first CCD galvanometer coaxial assembly to code the product;

[0044] Step D: While performing step C, the material transfer mechanism drives the suction jig to return to the top of the product feeding mechanism. After the second suction cup of the suction jig sucks the partition, the suction jig rotates, the first suction cup sucks the product of the product feeding mechanism, the second suction cup places the partition into the partition receiving frame, and the first suction cup moves the sucked product to the second coding platform of the second coding platform mechanism;

[0045] Step E: The second coding platform mechanism drives the second coding platform to the bottom of the second CCD galvanometer coaxial assembly of the laser coding mechanism, and the second coding platform mechanism cooperates with the second laser and the second CCD galvanometer coaxial assembly to code the product;

[0046] Step F: While performing step E, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, repeats the actions of sucking the partition, sucking the product, and placing the partition, and drives the product to the top of the first coding mechanism to wait;

[0047] Step G: After the first coding platform exits, the second suction cup first sucks the coded product on the first coding platform, the suction fixture rotates, and the first suction cup places the product on the first coding platform;

[0048] Step H: Repeat step C to code the products on the first coding platform;

[0049] Step J: while performing step H, the material transfer mechanism moves the product on the second suction cup to the first code scanning platform of the first code scanning platform mechanism;

[0050] Step K: The first code scanning platform mechanism drives the first code scanning platform to the bottom of the code scanning mechanism, and the first code scanning platform mechanism cooperates with the code scanning mechanism to scan the product;

[0051] Step L: While performing step K, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, repeats the actions of sucking the partition, sucking the product, and placing the partition, and drives the product to the top of the second coding mechanism to wait;

[0052] Step M: After the second coding platform exits, the second suction cup first sucks the coded product on the second coding platform, the suction fixture rotates, and the first suction cup places the product on the second coding platform;

[0053] Step N: Repeat step E to encode the product of the second encoding platform;

[0054] Step P: while performing step N, the material transfer mechanism moves the product on the second suction cup to the second code scanning platform of the second code scanning platform mechanism;

[0055] Step Q: The second code scanning platform mechanism drives the second code scanning platform to the bottom of the code scanning mechanism, and the second code scanning platform mechanism cooperates with the code scanning mechanism to scan the product;

[0056] Step R: After the first barcode scanning platform exits, the material transfer mechanism drives the suction fixture to the top of the first barcode scanning platform, and the first suction cup absorbs the scanned product on the first barcode scanning platform and moves the product to the product receiving frame. At the same time, the second suction cup absorbs the partition, and the suction fixture rotates and then descends again to place the partition on the second suction cup into the product receiving frame;

[0057] Step S: After the second barcode scanning platform exits, the material transfer mechanism drives the suction fixture to the top of the second barcode scanning platform, the first suction cup sucks the scanned product on the second barcode scanning platform, and moves the product to the product receiving frame. At the same time, the second suction cup sucks the partition, and the suction fixture rotates and then descends again, placing the partition on the second suction cup on the product receiving frame;

[0058] Repeat the above steps F to S until the product processing on the product feeding mechanism is completed.

[0059] The present invention can also be implemented by the following scheme:

[0060] An operating method of a double-station laser coding device, wherein a plurality of stacked products to be scanned are placed on a product feeding mechanism, comprising the following steps:

[0061] Step A: The robot swing arm of the material transfer mechanism drives the suction fixture to the top of the product feeding mechanism, and the first suction cup or the second suction cup of the suction fixture sucks the product;

[0062] Step B: The material transfer mechanism transfers the product to the first coding platform of the first coding platform mechanism;

[0063] Step C: The first coding platform mechanism drives the first coding platform to the bottom of the first CCD galvanometer coaxial assembly of the laser coding mechanism, and the first coding platform mechanism cooperates with the first laser and the first CCD galvanometer coaxial assembly to code the product;

[0064] Step D: While performing step C, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism to absorb the product, and transports the product to the second coding platform of the second coding platform mechanism;

[0065] Step E: The second coding platform mechanism drives the second coding platform to the bottom of the second CCD galvanometer coaxial assembly of the laser coding mechanism, and the second coding platform mechanism cooperates with the second laser and the second CCD galvanometer coaxial assembly to code the product;

[0066] Step F: While performing step E, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, sucks the product and drives the product to the top of the first coding mechanism to wait;

[0067] Step G: After the first coding platform exits, the second suction cup first sucks the coded product on the first coding platform, the suction fixture rotates, and the first suction cup places the product on the first coding platform;

[0068] Step H: Repeat step C to code the products on the first coding platform;

[0069] Step J: while performing step H, the material transfer mechanism moves the product on the second suction cup to the first code scanning platform of the first code scanning platform mechanism;

[0070] Step K: The first code scanning platform mechanism drives the first code scanning platform to the bottom of the code scanning mechanism, and the first code scanning platform mechanism cooperates with the code scanning mechanism to scan the product;

[0071] Step L: While performing step K, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, sucks the product and drives the product to the top of the second coding mechanism to wait;

[0072] Step M: After the second coding platform exits, the second suction cup first sucks the coded product on the second coding platform, the suction fixture rotates, and the first suction cup places the product on the second coding platform;

[0073] Step N: Repeat step E to encode the product of the second encoding platform;

[0074] Step P: while performing step N, the material transfer mechanism moves the product on the second suction cup to the second code scanning platform of the second code scanning platform mechanism;

[0075] Step Q: The second code scanning platform mechanism drives the second code scanning platform to the bottom of the code scanning mechanism, and the second code scanning platform mechanism cooperates with the code scanning mechanism to scan the product;

[0076] Step R: After the first barcode scanning platform exits, the material transfer mechanism drives the material suction fixture to the top of the first barcode scanning platform, and the first suction cup absorbs the scanned product on the first barcode scanning platform and moves the product to the product receiving frame;

[0077] Step S: After the second barcode scanning platform exits, the material transfer mechanism drives the material suction fixture to the top of the second barcode scanning platform, and the first suction cup absorbs the scanned product on the second barcode scanning platform and moves the product to the product receiving frame;

[0078] Repeat the above steps F to S until the product processing on the product feeding mechanism is completed.

[0079] After adopting the above scheme, the double-station laser coding equipment of the present invention has the following beneficial effects:

[0080] The present invention adopts two sets of coding platform mechanisms, and is equipped with two sets of laser and CCD galvanometer coaxial components to form double-station laser coding, which are independently controlled and do not affect each other. It is equivalent to integrating two single-station laser coding devices, greatly improving the coding efficiency;

[0081] The present invention adopts two groups of code scanning platform mechanisms to form a double-station code scanning, and a common set of scanning mechanisms. Since the code scanning efficiency of the scanning mechanism is relatively high, the double stations alternately scan the code, making full use of the working time of the scanning mechanism, and greatly improving the code scanning efficiency; the present invention has both the coding and scanning functions, and the coding and scanning are completed on the same device, reducing a code scanning process and a set of code scanning equipment and operators, improving production efficiency and reducing costs; the scanning efficiency of the scanning mechanism is relatively high, such as the scanning efficiency of one group of code scanning platform mechanisms can match the coding efficiency of two groups of coding platform mechanisms, of course, only one group of code scanning platform mechanisms can be designed;

[0082] The code reading module of the scanning mechanism of the present invention can have the functions of scanning and barcode rating at the same time, and can grade and judge the barcode while scanning the barcode; in addition, the scanning mechanism can also add a marking part to complete the identification and marking of defective products;

[0083] The laser coding mechanism of the present invention adopts a CCD galvanometer coaxial module, which combines the optical path of the CCD camera and the optical path of the laser into a coaxial optical path. Therefore, the visual positioning range of the CCD camera matches the scanning range of the galvanometer, ensuring accurate adjustment and positioning of the laser, improving the laser coding accuracy, and facilitating improving product processing quality.

[0084] The robot of the material transfer mechanism of the present invention can be a four-axis robot or a six-axis robot, which can move above multiple stations such as the product loading mechanism, the coding platform mechanism, the code scanning platform mechanism, and the product receiving frame, and integrates multiple groups of loading and unloading mechanisms into one, so as to realize the loading and unloading operations of the coding platform and the code scanning platform, making the equipment operation and control more flexible, optimizing the equipment structure, reducing the equipment volume, and reducing the equipment cost;

[0085] The product loading mechanism of the present invention adopts a screw motor stepping lifting structure, so that the products inside are always loaded at the same height level, ensuring that the material transfer mechanism can accurately pick up the materials; further, the material carrier plate and the material frame can be designed separately, and the screw motor only lifts the material carrier plate and the products on it, and the material frame does not need to rise, which reduces the impact on the robot's material picking space and is more flexible in operation;

[0086] The present invention can further design a partition feeding mechanism and a partition receiving frame to meet the production requirements of stacked products with partition isolation, so that the present invention has a partition processing function; and the material taking action of the partition feeding mechanism and the material discharging action of the partition receiving frame are all completed by the robot, without the need to set up a set of loading and unloading structures, further optimizing the equipment structure, reducing the equipment volume, and reducing the equipment cost;

[0087] The present invention can further design a defective product receiving frame, which can place products with bad code scanning separately, distinguish OK and NG products, prevent NG products from flowing out, facilitate the centralized production of subsequent processing procedures of OK products, and improve the production efficiency of the product post-process;

[0088] The present invention can use the material transfer mechanism to catch the defective products and return them to the coding platform for laser marking of defective products, or set a marking part on the code scanning mechanism to mark the defective products as defective.

[0089] The present invention can further adopt camera recognition for product loading, and can adopt upper camera recognition or lower camera recognition, which can be selected according to equipment structure, cost and product processing requirements; adopting camera recognition can further improve the placement accuracy of the product and further improve the laser marking accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] Figure 1 It is a stereoscopic diagram of the laser coding device of the present invention.

[0091] Figure 2 It is a front side view of the laser coding device of the present invention.

[0092] Figure 3 This is a top view of the laser coding device of the present invention.

[0093] Figure 4 This is the left side diagram of the laser coding device of the present invention.

[0094] Figure 5 It is a three-dimensional diagram of the coding platform mechanism of the present invention.

[0095] Figure 6 It is a top view of the coding platform mechanism of the present invention.

[0096] Figure 7 It is a stereoscopic diagram of the laser coding mechanism of the present invention.

[0097] Figure 8It is a front side view of the laser coding mechanism of the present invention.

[0098] Fig. 9 It is a stereoscopic diagram of the CCD galvanometer coaxial assembly of the present invention.

[0099] Fig.10 It is a front side view of the CCD galvanometer coaxial assembly of the present invention.

[0100] Fig.11 It is the left side diagram of the CCD galvanometer coaxial assembly of the present invention.

[0101] Fig.12 It is a three-dimensional diagram of the code scanning platform mechanism of the present invention.

[0102] Fig.13 It is a three-dimensional diagram of the code scanning mechanism of the present invention.

[0103] Fig.14 It is a three-dimensional diagram of the material shifting mechanism of the present invention.

[0104] Fig.15 It is a top view of the material shifting mechanism of the present invention.

[0105] Fig.16 It is a three-dimensional diagram of the product feeding mechanism of the present invention.

[0106] Fig.17 It is a front side view of the product feeding mechanism of the present invention.

[0107] Fig.18 It is a three-dimensional diagram of another embodiment of the product feeding mechanism of the present invention.

[0108] Fig.19 It is a front view of another embodiment of the product feeding mechanism of the present invention.

[0109] Fig. 20 It is a three-dimensional diagram of the material receiving frame of the product of the present invention. DETAILED DESCRIPTION

[0110] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0111] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “X”, “Y”, “Z”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0112] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0113] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0114] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0116] like Figures 1 to 4As shown, the present invention is a double-station laser coding device 1, including a frame 10, a first coding platform mechanism 20, a second coding platform mechanism 30, a laser coding mechanism 40, a first code scanning platform mechanism 50, a second code scanning platform mechanism 60, a code scanning mechanism 70, a material moving mechanism 80, a product feeding mechanism 90 and a product receiving frame 100.

[0117] Since some products are stacked using partitions, in order to meet the production requirements of stacked products with partitions, the present invention has a partition processing function. The double-station laser coding device 1 also includes a partition loading mechanism 110 and a partition receiving frame 120.

[0118] In order to distinguish and place defective products, the double-station laser coding equipment 1 also includes a defective product receiving frame 130. The defective product receiving frame 130 is arranged within the travel range of the material transfer mechanism 80, and unqualified products can be placed separately to distinguish OK products from NG products.

[0119] like Figure 1 As shown, a workbench 11 is provided on the top surface of the frame 10 .

[0120] like Figure 5 to Figure 6 As shown, the first coding platform mechanism 20 and the second coding platform mechanism 30 are arranged side by side on one side of the workbench 11 of the frame 10. The first coding platform mechanism 20 includes a coding Y-axis linear module 21, a coding Y-axis linear guide 22, a first coding platform 23, a coding platform mounting plate 24, a coding X-axis linear guide 25 and a coding X-axis linear module 26. The first coding platform 23 can be used for vacuum adsorption of products. The coding platform mounting plate 24 can be slidably arranged on the coding Y-axis linear module 21 and the coding Y-axis linear guide 22, so that the coding Y-axis linear module 21 can drive the coding platform mounting plate 24 to reciprocate along the coding Y-axis linear guide 22. The coding platform mounting plate 24 is provided with a coding X-axis linear guide rail 25, and a coding X-axis linear module 26 is installed on one side of the coding platform mounting plate 24. The first coding platform 23 is installed on the coding X-axis linear guide rail 25, and one side of the first coding platform 23 is connected to the coding X-axis linear module 26 through the coding platform connecting plate 27, so that the coding X-axis linear module 26 can drive the first coding platform 23 to reciprocate along the X-axis direction. The coding X-axis linear module 26 shown in the figure is set on the side of the coding platform mounting plate 24, and the coding X-axis linear module 26 can also be set on the coding platform mounting plate 24 and slidably connected to the bottom of the first coding platform 23. The first coding platform 23 is driven to reciprocate in the X-axis and Y-axis directions by the linkage and cooperation of the coding Y-axis linear module 21 and the coding X-axis linear module 26, which can improve the product processing size and processing flexibility.

[0121] The structure of the second coding platform mechanism 30 is the same as that of the first coding platform mechanism 20, and will not be described in detail.

[0122] like Figure 7 and Figure 8 As shown, the laser coding mechanism 40 includes a gantry 41 , a first laser 42 , a second laser 43 , a first CCD galvanometer coaxial assembly 44 , a second CCD galvanometer coaxial assembly 45 , a first light source 46 and a second light source 47 .

[0123] The gantry 41 is arranged on the workbench 11 of the frame 10, and the gantry 41 includes two pillars, a top plate 411 arranged on the top of the two pillars, and a side plate 412 connecting the two pillars. The two pillars of the gantry 41 are correspondingly arranged on both sides of the first coding platform mechanism 20 and the second coding platform mechanism 30, so that the gantry 41 spans the first code scanning platform mechanism 20 and the second code scanning platform mechanism 30, and the first laser 42 and the second laser 43 are arranged side by side on the top plate 411, and the laser heads of the first laser 42 and the second laser 43 face downward and protrude below the top plate 411 respectively. The first CCD galvanometer coaxial assembly 44 and the second CCD galvanometer coaxial assembly 45 are arranged side by side on the side plate 412, and the first CCD galvanometer coaxial assembly 44 is located below the first laser 42, and the second CCD galvanometer coaxial assembly 45 is located below the second laser 43, the first light source 46 is arranged below the first CCD galvanometer coaxial assembly 44, and the second light source 47 is arranged below the second CCD galvanometer coaxial assembly 45.

[0124] The first laser 42 and the second laser 43 may be ultraviolet lasers, fiber lasers, infrared lasers or green lasers.

[0125] like Figures 9 to 11 As shown, the first CCD galvanometer coaxial assembly 44 includes a Z-axis linear module 441, a module mounting frame 442 and a CCD galvanometer coaxial module 443. The Z-axis linear module 441 is mounted on the side plate 412 of the gantry 41. Z-axis linear guides 4411 are arranged on both sides of the Z-axis linear module 441. The Z-axis linear guides 4411 can improve the stability of the operation of the Z-axis linear module. The module mounting frame 442 is mounted on the Z-axis linear module 441. The CCD galvanometer coaxial module 443 is arranged on the module mounting frame 442. The Z-axis linear module 441 can drive the module mounting frame 442 and the CCD galvanometer coaxial module 443 to slide up and down along the Z-axis linear guide 4411.

[0126] The CCD galvanometer coaxial module 443 includes a reflector (not shown in the figure), a CCD camera 4432, a beam combiner (not shown in the figure), a galvanometer group 4431 and a field lens 4433. A laser entrance 4434 is provided on the top surface of the CCD galvanometer coaxial module 443 at the position of the laser head of the first laser 42. The reflector, the beam combiner, the galvanometer group 4431 and the field lens 4433 are arranged in sequence according to the transmission path of the laser light path. The reflector is arranged below the laser entrance 4434, and the beam combiner is arranged in front of the output end of the reflector. The galvanometer group 4431 includes an X-axis galvanometer and a Y-axis galvanometer. The galvanometer group 4431 is arranged in front of the output end of the beam combiner. The field lens 4433 is arranged below the output end of the galvanometer group 4431 and at the bottom of one side of the galvanometer group 4431 away from the laser entrance 4434. The field lens 4433 protrudes below the module mounting frame, and the CCD camera 4432 is arranged on the other input end side of the beam combiner. The laser output by the first laser 42 enters the laser entrance 4434 of the CCD galvanometer coaxial module 443 through the laser optical path 421, is reflected by the reflector and enters the beam combiner, and is combined with the optical path of the CCD camera 4432 into a coaxial optical path through the beam combiner, and is scanned by the X and Y axes of the galvanometer group 4431, and then output to the coding platform through the field lens 4433. The optical path of the CCD camera 4432 and the optical path of the first laser 42 are combined into a coaxial optical path. Therefore, the visual positioning range of the CCD camera 4432 matches the scanning range of the galvanometer, ensuring accurate adjustment and positioning of the laser, improving the laser coding accuracy, and helping to improve product processing quality.

[0127] The CCD galvanometer coaxial module 443 may also include a distance measurement module (not shown in the figure) for measuring focal length, and the distance measurement module may be a laser distance measurement module or an infrared distance measurement module.

[0128] The structure of the second CCD galvanometer coaxial assembly 45 is the same as that of the first CCD galvanometer coaxial assembly 44 , and will not be described in detail.

[0129] The first light source 46 and the second light source 47 are annular light sources or bar sources, and the light sources illuminate the coding platform and provide light sources for the CCD galvanometer coaxial module.

[0130] like Fig.12 As shown, the first code scanning platform mechanism 50 and the second code scanning platform mechanism 60 are arranged side by side on the workbench 11 of the frame 10 and are located on one side of the gantry 41 of the laser coding mechanism 40. The first code scanning platform mechanism 50 includes a code scanning linear module 51 and a first code scanning platform 52. The first code scanning platform 52 is installed on the code scanning linear module 51, so that the code scanning linear module 51 can drive the first code scanning platform 52 to reciprocate.

[0131] The structure of the second code scanning platform mechanism 60 is the same as that of the first code scanning platform mechanism 50 , and will not be described in detail.

[0132] like Fig.13 As shown, the code scanning mechanism 70 includes a scanning linear module 71, a connecting frame 72 and a code reading module 73. The scanning linear module 71 is horizontally arranged above the corresponding first code scanning platform mechanism 50 and the second code scanning platform mechanism 60. The connecting frame 72 is slidably arranged on the scanning linear module 71. The code reading module 73 is arranged on the connecting frame 72, so that the scanning linear module 71 can drive the connecting frame 72 and the code reading module 73 to move back and forth between the first code scanning platform mechanism 50 and the second code scanning platform mechanism 60. The code reading module 73 has a code scanning function or a code scanning and barcode rating function.

[0133] In order to improve the stability of the operation of the code scanning mechanism 70 , the scanning linear module 71 is also equipped with a scanning linear guide rail 74 . The scanning linear guide rail 74 is arranged corresponding to the scanning linear module 71 . The connecting frame 72 is arranged on the scanning linear module 71 and the scanning linear guide rail 74 .

[0134] The code reading module 73 can be a barcode decoder, which can directly scan and read the barcode information on the product. The code reading module 73 can also be a camera module, which includes a CCD camera and a light source. The camera module cooperates with the code reading software to scan and read the barcode information on the product.

[0135] Preferably, the code scanning mechanism 70 may also include a code scanning Z-axis linear module (not shown in the figure), the code scanning Z-axis linear module is arranged on the scanning linear module 71, and the connecting frame 72 is arranged on the code scanning Z-axis linear module. The scanning linear module 71 and the code scanning Z-axis linear module are linked to drive the connecting frame 72 and the code reading module arranged on the connecting frame 72 to move back and forth in the X and Z axes, which is used to adapt to the scanning of various types of products and improve the scanning range and scanning accuracy.

[0136] Preferably, the code scanning mechanism 70 also includes a marking part (not shown in the figure), which can be set on the code scanning Z-axis linear module, located on one side of the code reading module 73. The scanning linear module 71 and the code scanning Z-axis linear module can drive the marking part to move back and forth in the X and Z axes to mark defective products after scanning. The marking part is any one of a marking pen, a marking stamp, a small inkjet module or a small laser marking module.

[0137] like Fig.14 and Fig.15As shown, the material transfer mechanism 80 is arranged on the workbench 11 of the frame 10 in front of the first coding platform mechanism 20, the second coding platform mechanism 30, the first code scanning platform mechanism 50 and the second code scanning platform mechanism 60. The material transfer mechanism 80 includes a robot 81 and a material suction fixture 82. The robot is a four-axis robot or a six-axis robot with a swing arm, which is rotatably arranged on the workbench 11 of the frame 10. The material suction fixture 82 includes a fixture connecting plate 821, a suction nozzle mounting plate 822 and a vacuum suction nozzle 823. The fixture connecting plate 821 is mounted on the swing arm of the robot 81, and the suction nozzle mounting plate 822 is mounted on the fixture connecting plate 821. A plurality of vacuum suction nozzles 823 are arranged on one side of the bottom surface of the suction nozzle mounting plate 822 to form a first suction cup 825, and a plurality of vacuum suction nozzles 823 are arranged on the other side of the bottom surface of the suction nozzle mounting plate 822 to form a second suction cup 826. The first suction cup 825 and the second suction cup 826 are respectively connected to vacuum generators and can be controlled separately.

[0138] The product loading mechanism 90 , the product storage frame 100 , the partition loading mechanism 110 , the partition receiving frame 120 and the defective product storage frame 130 are all arranged within the travel range of the robot 81 swing arm.

[0139] like Fig.16 and Fig.17 As shown, it is one embodiment of the product loading mechanism 90. In this embodiment, the product loading mechanism 90 includes a screw motor 91, a bearing 92, a guide column 93, a guide column base plate 94 and a material frame assembly 95. A plurality of guide columns 93 are arranged between the material frame assembly 95 and the guide column base plate 94. One end of each guide column 93 is connected to the bottom of the material frame assembly 95, and the other end is connected to the guide column base plate 94. The screw motor 91 is arranged on the workbench 11 of the frame 10, and the screw motor 91 is equipped with a screw 911. One end of the screw 911 is connected to the material frame assembly 95, and the other end of the screw 911 is connected to the guide column base plate 94. A plurality of bearings 92 are arranged on the workbench 11 of the frame 10 and are correspondingly sleeved on the plurality of guide columns 93. The screw motor 91 drives the screw 911 to drive the material frame assembly 95 to move up and down. The material frame assembly 95 is used to place materials. After the uppermost layer of materials of the material frame assembly 95 is taken away, the screw motor 91 drives the screw 911 to drive the material frame assembly 95 to automatically rise to a specified height.

[0140] The material frame assembly 95 includes a slide rail fixing plate 951, a drawer slide rail 952, a slide rail connecting plate 953, a material frame tray 954 and a material frame 955; the slide rail fixing plate 951 is arranged at the top of a plurality of guide pillars 93, the drawer slide rail 952 is arranged on the slide rail fixing plate 951, the slide rail connecting plate 953 is an L-shaped structure, one end of the slide rail connecting plate 953 is connected to the material frame tray 954, and the other end of the slide rail connecting plate 953 is connected to the drawer slide rail 952, and the material frame is placed on the material frame tray. The material frame assembly 95 is designed as a drawer-type structure, which is mainly convenient for employees to take and put materials. Employees pull out the drawer, put the product in, and then push the drawer. In this way, employees do not need to put their hands into the equipment, which is convenient for operation and ensures personal safety. In addition, the drawer-type structure also makes the equipment space more compact.

[0141] In order to facilitate product positioning, a positioning groove 9551 is further provided on the material frame 955 , and the positioning groove 9551 is used to place a product limiting piece so that the product is positioned and placed in the material frame 955 .

[0142] In order to mitigate the impact force of the product rising or falling, the product feeding mechanism 90 further includes a buffer pad 96 , which is disposed on each guide column 93 between the material frame assembly 95 and the bearing 92 .

[0143] like Figure 18 to Figure 19As shown, another embodiment of the product loading mechanism: in this embodiment, the product loading mechanism 140 includes a screw motor 141, a bearing 142, a guide column 143, a guide column bottom plate 144, a material frame assembly 145 and a lifting plate 146. The screw motor 141 is arranged on the workbench 11 of the frame 10, and the screw motor 141 is equipped with a screw 1411, one end of the screw 1411 is connected to the lifting plate 146, and the other end of the screw 1411 is connected to the guide column bottom plate 144. A plurality of guide columns 143 are arranged between the lifting plate 146 and the guide column bottom plate 144, each guide column 143 is respectively equipped with a bearing 142, and each bearing 142 is arranged on the workbench 11 of the frame 10 corresponding to each guide column. The material frame assembly 145 includes a slide rail fixing plate 1451, a drawer slide rail 1452, a slide rail connecting plate 1453, a material frame tray 1454, material frame 1455 and material carrier plate 1456; the slide rail fixing plate 1451 is arranged on the workbench 11 of the frame 10, the drawer slide rail 1452 is arranged on the slide rail fixing plate 1451, the slide rail connecting plate 1453 is an L-shaped structure, one end of the slide rail connecting plate 1453 is connected to the material frame tray 1454, and the other end of the slide rail connecting plate 1453 is connected to the drawer slide rail 1452, the material frame 1455 is placed on the material frame tray 1454, and the middle areas of the material frame tray 1454 and the material frame 1455 are respectively provided with windows for the lifting plate 146 to pass through, and the window size is smaller than the size of the material carrier plate 1456, and the material carrier plate 1456 can be placed on the inner edge of the material frame 1455 by overlapping, and the screw motor drives the lifting plate to lift the material carrier plate and makes the lifting plate and the material carrier plate step by step. The material carrier plate is used to place materials. The main difference between the product loading mechanism 140 of this embodiment and the product loading mechanism 90 of the previous embodiment is that: in this embodiment, the material carrier 1456 and the material frame 1455 are designed separately, and the screw motor 141 only lifts the material carrier 1456 and the products thereon, and the material frame 1455 does not need to rise, thereby reducing the impact on the robot 81's material picking space and making the operation more flexible.

[0144] In order to facilitate product positioning, a plurality of positioning grooves 14561 are provided on the material carrier plate 1456 for placing product limiting parts so that the product can be positioned and placed on the material carrier plate 1456 .

[0145] The structure of the partition feeding mechanism 110 is the same as that of the product feeding mechanism 90 / 140, and will not be described in detail.

[0146] like Fig. 20As shown, the product receiving frame 100 includes a frame support frame 101, a frame drawer slide rail 102, a frame slide rail connecting plate 103 and a receiving frame 104. The frame support frame 101 is arranged on the workbench 11 of the frame 10, the frame drawer slide rail 102 is arranged on the frame support frame 101, the frame slide rail connecting plate 103 is an L-shaped structure, one end of the frame slide rail connecting plate 103 is connected to the frame drawer slide rail 102, and the other end of the frame slide rail connecting plate 103 is connected to the receiving frame 104. The product receiving frame 100 is set as a drawer-type receiving frame for easy access to materials, and of course it can also be a non-drawer-type receiving frame.

[0147] The partition receiving frame 120 is the same as the product receiving frame 100 and will not be described in detail.

[0148] Preferably, the dual-station laser coding device 1 of the present invention also includes a camera (not shown in the figure), and an upper camera and / or a lower camera can be selected. The upper camera can be set above the product feeding mechanism 90 / 140 and its lens is facing the product feeding mechanism; after the upper camera recognizes the product, the material transfer mechanism 80 absorbs the product. The lower camera can be set on a workbench 11 located within the travel range of the material transfer mechanism and its lens is set upward, and the lower camera is located within the travel range of the material transfer mechanism 80; after the material transfer mechanism 80 absorbs the product, it is first transported to the top of the lower camera, and the lower camera recognizes the Mark point of the product before transporting the product for loading. The present invention has the function of camera loading alignment, and the use of camera alignment can further improve the accuracy of product placement and further improve the laser marking accuracy of the product.

[0149] The operation process and working principle of the dual-station laser coding equipment of the present invention are:

[0150] When in use, a stack of products with partitions (or without partitions, if the products are not separated by partitions, the following operations related to the partitions can be omitted) is placed in the product feeding mechanism 90 / 140. If there is a partition, the partition is placed in the partition feeding mechanism 110. After starting the double-station laser coding device 1 of the present invention, the following steps are performed:

[0151] Step A: The robot 81 of the material transfer mechanism 80 swings its arm to drive the suction fixture 82 to the top of the product loading mechanism 90 / 140, the suction fixture 82 descends, and after the second suction cup 826 sucks the partition, the robot 81 drives the suction fixture 82 to rotate, and the suction fixture 82 descends again, the first suction cup 825 sucks the product, and at the same time, the second suction cup 826 places the partition into the partition receiving frame 120;

[0152] Step B: the material transfer mechanism 80 transfers the product on the first suction cup 825 to the first coding platform 26 of the first coding platform mechanism 20;

[0153] Step C: The first coding platform mechanism 20 drives the first coding platform 26 to the bottom of the first CCD galvanometer coaxial assembly 44 of the laser coding mechanism 40, and the first coding platform mechanism 20 cooperates with the first laser 42 and the first CCD galvanometer coaxial assembly 44 to code the product;

[0154] Step D: While performing step C, the material transfer mechanism 80 drives the suction fixture 82 to return to the top of the product feeding mechanism 90 / 140. After the second suction cup 826 of the suction fixture 82 sucks the partition, the suction fixture rotates, the first suction cup 825 sucks the product of the product feeding mechanism 90 / 140, the second suction cup 826 places the partition into the partition receiving frame 120, and the first suction cup 825 moves the sucked product to the second coding platform 36 of the second coding platform mechanism 30;

[0155] Step E: The second coding platform mechanism 30 drives the second coding platform 36 to the bottom of the second CCD galvanometer coaxial assembly 45 of the laser coding mechanism 40, and the second coding platform mechanism 30 cooperates with the second laser 43 and the second CCD galvanometer coaxial assembly 45 to code the product;

[0156] Step F: While performing step E, the material transfer mechanism 80 drives the material suction fixture 82 to return to the top of the product loading mechanism 90 / 140, repeats the actions of sucking the partition, sucking the product, and placing the partition, and drives the product to the top of the first coding mechanism 20 to wait;

[0157] Step G: After the first coding platform 26 exits, the second suction cup 826 first sucks the coded product on the first coding platform 26, the suction fixture 82 rotates, and the first suction cup 825 places the product on the first coding platform 26;

[0158] Step H: Repeat step C to code the products on the first coding platform 26;

[0159] Step J: while performing step H, the material transfer mechanism 80 transfers the product on the second suction cup 826 to the first code scanning platform 52 of the first code scanning platform mechanism 50;

[0160] Step K: The first code scanning platform mechanism 50 drives the first code scanning platform 52 to the bottom of the code scanning mechanism 70, and the first code scanning platform mechanism 50 cooperates with the code scanning mechanism 70 to scan the product;

[0161] Step L: While performing step K, the material transfer mechanism 80 drives the material suction fixture 82 to return to the top of the product loading mechanism 90 / 140, repeats the actions of sucking the partition, sucking the product, and placing the partition, and drives the product to the top of the second coding mechanism 30 to wait;

[0162] Step M: After the second coding platform 36 exits, the second suction cup 826 first sucks the coded product on the second coding platform 36, the suction fixture 82 rotates, and the first suction cup 825 places the product on the second coding platform 36;

[0163] Step N: repeat step E to encode the product of the second encoding platform 36;

[0164] Step P: while performing step N, the material transfer mechanism 80 transfers the product on the second suction cup 826 to the second code scanning platform 62 of the second code scanning platform mechanism 60;

[0165] Step Q: The second code scanning platform mechanism 60 drives the second code scanning platform 62 to the bottom of the code scanning mechanism 70, and the second code scanning platform mechanism 60 cooperates with the code scanning mechanism 70 to scan the product;

[0166] Step R: After the first code scanning platform 52 exits, the material transfer mechanism 80 drives the material suction fixture 82 to the top of the first code scanning platform 52, and the first suction cup 825 sucks the scanned product on the first code scanning platform 52 and moves the product to the product receiving frame 100. At the same time, the second suction cup 826 sucks the partition, and the material suction fixture 82 rotates and then descends again, and puts the partition on the second suction cup 826 into the product receiving frame 100;

[0167] Step S: After the second code scanning platform 62 exits, the material transfer mechanism 80 drives the material suction fixture 82 to the top of the second code scanning platform 62, and the first suction cup 825 sucks the scanned product on the second code scanning platform 62 and moves the product to the product receiving frame 100. At the same time, the second suction cup 826 sucks the partition, and the material suction fixture 82 rotates and then descends again, and puts the partition on the second suction cup 826 into the product receiving frame 100;

[0168] Repeat the above steps F to S until the product processing on the product feeding mechanism 90 / 140 is completed.

[0169] After adopting the above scheme, the double-station laser coding equipment of the present invention has the following beneficial effects:

[0170] The present invention adopts two sets of coding platform mechanisms, and is equipped with two sets of laser and CCD galvanometer coaxial components to form double-station laser coding, which are independently controlled and do not affect each other. It is equivalent to integrating two single-station laser coding devices, greatly improving the coding efficiency;

[0171] The present invention adopts two sets of code scanning platform mechanisms to form a double-station code scanning, and a common set of scanning mechanisms. Since the scanning efficiency of the scanning mechanism is relatively high, the double stations alternately scan the codes, making full use of the working time of the scanning mechanism, and greatly improving the scanning efficiency; the present invention has the functions of coding and scanning at the same time, and coding and scanning are completed on the same device, reducing a scanning process and a set of scanning equipment and operators, improving production efficiency and reducing costs;

[0172] The code reading module of the scanning mechanism of the present invention can have the functions of scanning and barcode rating at the same time, and can grade and judge the barcode while scanning the barcode; in addition, the scanning mechanism can also add a marking part to complete the identification and marking of defective products;

[0173] The laser coding mechanism of the present invention adopts a CCD galvanometer coaxial module, which combines the optical path of the CCD camera and the optical path of the laser into a coaxial optical path. Therefore, the visual positioning range of the CCD camera matches the scanning range of the galvanometer, ensuring accurate adjustment and positioning of the laser, improving the laser coding accuracy, and facilitating improving product processing quality.

[0174] The robot of the material transfer mechanism of the present invention can be a four-axis robot or a six-axis robot, which can move above multiple stations such as the product loading mechanism, the coding platform mechanism, the code scanning platform mechanism, and the product receiving frame, and integrates multiple groups of loading and unloading mechanisms into one, so as to realize the loading and unloading operations of the coding platform and the code scanning platform, making the equipment operation and control more flexible, optimizing the equipment structure, reducing the equipment volume, and reducing the equipment cost;

[0175] The product loading mechanism of the present invention adopts a screw motor stepping lifting structure, so that the products inside are always loaded at the same height level, ensuring that the material transfer mechanism can accurately pick up the materials; further, the material carrier plate and the material frame can be designed separately, and the screw motor only lifts the material carrier plate and the products on it, and the material frame does not need to rise, which reduces the impact on the robot's material picking space and is more flexible in operation;

[0176] The present invention can further design a partition feeding mechanism and a partition receiving frame to meet the production requirements of stacked products with partition isolation, so that the present invention has a partition processing function; and the material taking action of the partition feeding mechanism and the material discharging action of the partition receiving frame are all completed by the robot, without the need to set up a set of loading and unloading structures, further optimizing the equipment structure, reducing the equipment volume, and reducing the equipment cost;

[0177] The present invention can further design a defective product receiving frame, which can place products with bad code scanning separately, distinguish OK and NG products, prevent NG products from flowing out, facilitate the centralized production of subsequent processing procedures of OK products, and improve the production efficiency of the product post-process;

[0178] The present invention can use the material transfer mechanism to catch the defective products and return them to the coding platform for laser marking of defective products, or set a marking part on the code scanning mechanism to mark the defective products as defective.

[0179] The present invention can further adopt camera recognition for product loading, and can adopt upper camera recognition or lower camera recognition, which can be selected according to equipment structure, cost and product processing requirements; adopting camera recognition can further improve the placement accuracy of the product and further improve the laser marking accuracy of the product.

[0180] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. An operating method of a double-station laser coding device, characterized in that: The double-station laser coding equipment includes a frame with a workbench on the top surface, a first coding platform mechanism, a second coding platform mechanism, a laser coding mechanism, a first scanning platform mechanism, a second scanning platform mechanism, a scanning mechanism, a material moving mechanism, a product feeding mechanism and a product receiving frame; The first coding platform mechanism and the second coding platform mechanism are arranged side by side on one side of the workbench of the frame, the first coding platform mechanism has a first coding platform, and the second coding platform mechanism has a second coding platform; The laser coding mechanism includes a gantry, a first laser, a second laser, a first CCD galvanometer coaxial assembly, a second CCD galvanometer coaxial assembly, a first light source and a second light source, the gantry is arranged above the first code scanning platform mechanism and the second code scanning platform mechanism, the first laser and the second laser are arranged side by side on the gantry, the laser heads of the first laser and the second laser are facing downward, the first CCD galvanometer coaxial assembly and the second CCD galvanometer coaxial assembly are arranged side by side on the gantry and are located below the first laser and the second laser, the top of the first CCD galvanometer coaxial assembly is provided with a first laser inlet corresponding to the first laser, the top of the second CCD galvanometer coaxial assembly is provided with a second laser inlet corresponding to the second laser, the first light source is arranged below the first CCD galvanometer coaxial assembly, and the second light source is arranged below the second CCD galvanometer coaxial assembly; The first code scanning platform mechanism and the second code scanning platform mechanism are arranged side by side on the working table of the frame and are located on one side of the gantry of the laser coding mechanism. The first code scanning platform mechanism has a first code scanning platform, and the second code scanning platform mechanism has a second code scanning platform. The code scanning mechanism includes a scanning linear module and a code reading module. The scanning linear module is horizontally arranged above the corresponding first code scanning platform mechanism and the second code scanning platform mechanism. The code reading module is slidably arranged on the scanning linear module, so that the scanning linear module can drive the code reading module to move back and forth between the first code scanning platform mechanism and the second code scanning platform mechanism. The material transfer mechanism is arranged on a workbench in front of the first coding platform mechanism, the second coding platform mechanism, the first code scanning platform mechanism and the second code scanning platform mechanism. The material transfer mechanism includes a robot and a material suction fixture. The robot has a swing arm, and the swing arm is rotatably arranged on the workbench of the frame. The material suction fixture includes a nozzle mounting plate and a vacuum nozzle. The nozzle mounting plate is arranged on the swing arm. One side of the bottom surface of the nozzle mounting plate is provided with a plurality of vacuum nozzles to form a first suction cup, and the other side of the bottom surface of the nozzle mounting plate is provided with a plurality of vacuum nozzles to form a second suction cup. The product loading mechanism and the product receiving frame are arranged within the travel range of the robot swing arm. The product loading mechanism includes a screw motor and a material carrying device. The screw motor is arranged on the workbench of the frame, and the screw motor is matched with a screw. The material carrying device is arranged on the screw of the screw motor. The screw motor drives the material carrying device to step up, so that the products inside are always at the same height level for loading. The material carrying device is a material carrier plate, and the material carrier plate is separated from the product receiving frame. The screw motor only lifts the material carrier plate and the products thereon, and the product receiving frame does not need to rise. A plurality of stacked products to be scanned are placed on a product feeding mechanism. The operation method of the double-station laser coding equipment includes the following steps: Step A: The robot swing arm of the material transfer mechanism drives the suction fixture to the top of the product feeding mechanism, and the first suction cup or the second suction cup of the suction fixture sucks the product; Step B: The material transfer mechanism transfers the product to the first coding platform of the first coding platform mechanism; Step C: The first coding platform mechanism drives the first coding platform to the bottom of the first CCD galvanometer coaxial assembly of the laser coding mechanism, and the first coding platform mechanism cooperates with the first laser and the first CCD galvanometer coaxial assembly to code the product; Step D: While performing step C, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism to absorb the product, and transports the product to the second coding platform of the second coding platform mechanism; Step E: The second coding platform mechanism drives the second coding platform to the bottom of the second CCD galvanometer coaxial assembly of the laser coding mechanism, and the second coding platform mechanism cooperates with the second laser and the second CCD galvanometer coaxial assembly to code the product; Step F: While performing step E, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, sucks the product and drives the product to the top of the first coding mechanism to wait; Step G: After the first coding platform exits, the second suction cup first sucks the coded product on the first coding platform, the suction fixture rotates, and the first suction cup places the product on the first coding platform; Step H: Repeat step C to code the products on the first coding platform; Step J: while performing step H, the material transfer mechanism moves the product on the second suction cup to the first code scanning platform of the first code scanning platform mechanism; Step K: The first code scanning platform mechanism drives the first code scanning platform to the bottom of the code scanning mechanism, and the first code scanning platform mechanism cooperates with the code scanning mechanism to scan the product; Step L: While performing step K, the material transfer mechanism drives the material suction fixture to return to the top of the product feeding mechanism, sucks the product and drives the product to the top of the second coding mechanism to wait; Step M: After the second coding platform exits, the second suction cup first sucks the coded product on the second coding platform, the suction fixture rotates, and the first suction cup places the product on the second coding platform; Step N: Repeat step E to encode the product of the second encoding platform; Step P: while performing step N, the material transfer mechanism moves the product on the second suction cup to the second code scanning platform of the second code scanning platform mechanism; Step Q: The second code scanning platform mechanism drives the second code scanning platform to the bottom of the code scanning mechanism, and the second code scanning platform mechanism cooperates with the code scanning mechanism to scan the product; Step R: After the first barcode scanning platform exits, the material transfer mechanism drives the material suction fixture to the top of the first barcode scanning platform, and the first suction cup absorbs the scanned product on the first barcode scanning platform and moves the product to the product receiving frame; Step S: After the second barcode scanning platform exits, the material transfer mechanism drives the material suction fixture to the top of the second barcode scanning platform, and the first suction cup absorbs the scanned product on the second barcode scanning platform and moves the product to the product receiving frame; Repeat the above steps F to S until the product processing on the product feeding mechanism is completed.

2. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The first coding platform mechanism includes a coding Y-axis linear module, a coding Y-axis linear guide, a first coding platform, a coding platform mounting plate, a coding X-axis linear guide and a coding X-axis linear module. The coding platform mounting plate can be slidably arranged on the coding Y-axis linear module and the coding Y-axis linear guide, so that the coding Y-axis linear module can drive the coding platform mounting plate to reciprocate along the coding Y-axis linear guide, the coding X-axis linear guide and the coding X-axis linear module are arranged on the coding platform mounting plate, and the first coding platform is installed on the coding X-axis linear guide and the coding X-axis linear module, so that the coding X-axis linear module drives the first coding platform to reciprocate along the X-axis direction, and the second coding platform mechanism has the same structure as the first scanning code platform mechanism.

3. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The first CCD galvanometer coaxial assembly includes a Z-axis linear module, a module mounting frame and a CCD galvanometer coaxial module. The Z-axis linear module is installed on the gantry, the module mounting frame is installed on the Z-axis linear module, the CCD galvanometer coaxial module is arranged on the module mounting frame, the Z-axis linear module can drive the module mounting frame and the CCD galvanometer coaxial module to reciprocate along the Z-axis direction, the CCD galvanometer coaxial module includes a galvanometer group and a CCD camera, the CCD galvanometer coaxial module combines the optical path of the CCD camera and the optical path of the laser into a coaxial optical path, and then outputs it through scanning by the galvanometer group.

4. The operating method of a dual-station laser coding device according to claim 3, characterized in that: The CCD galvanometer coaxial module includes a reflector, a CCD camera, a beam combiner, a galvanometer group and a field mirror. The reflector, the beam combiner, the galvanometer group and the field mirror are arranged in sequence according to the transmission path of the laser light path. The reflector is arranged below the laser entrance, the beam combiner is arranged in front of the output end of the reflector, the galvanometer group includes an X-axis galvanometer and a Y-axis galvanometer, the galvanometer group is arranged in front of the output end of the beam combiner, the field mirror is arranged below the output end of the galvanometer group and at the bottom of the side of the galvanometer group away from the laser entrance, the field mirror protrudes below the module mounting frame, and the CCD camera is arranged on the other input end side of the beam combiner. The laser output by the laser enters the laser entrance of the CCD galvanometer coaxial module through the laser light path, is reflected by the reflector and enters the beam combiner, is combined with the light path of the CCD camera into a coaxial light path through the beam combiner, is scanned by the X and Y axes of the galvanometer group, and is output to the coding platform through the field mirror.

5. The operating method of a dual-station laser coding device according to claim 3, characterized in that: The CCD galvanometer coaxial module also includes a distance measurement module for measuring focal length, and the distance measurement module is a laser distance measurement module or an infrared distance measurement module.

6. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The laser is any one of an ultraviolet laser, a fiber laser, an infrared laser or a green laser.

7. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The first code scanning platform mechanism includes a code scanning linear module and a first code scanning platform. The first code scanning platform is installed on the code scanning linear module, so that the code scanning linear module drives the first code scanning platform to reciprocate. The second code scanning platform mechanism has the same structure as the first code scanning platform mechanism. The code reading module is a barcode decoder or a camera module. The camera module includes a CCD camera and a light source. The code reading module has a code scanning function or a code scanning and barcode rating function.

8. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The code scanning mechanism also includes a code scanning Z-axis linear module, which is arranged on the scanning linear module, and the code reading module is arranged on the scanning Z-axis linear module. The scanning linear module and the scanning Z-axis linear module are linked to drive the code reading module to move back and forth in the X and Z axis directions.

9. The operating method of a dual-station laser coding device according to claim 8, characterized in that: The code scanning mechanism also includes a marking part, which is arranged on the code scanning Z-axis linear module and located on one side of the code reading module. The scanning linear module and the code scanning Z-axis linear module are linked to drive the marking part and the code reading module to reciprocate in the X and Z axis directions; the marking part is any one of a marking pen, a marking stamp, a small inkjet module or a small laser marking module.

10. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The robot of the material transfer mechanism is a four-axis robot or a six-axis robot with a swing arm.

11. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The product loading mechanism also includes bearings, guide pillars and guide pillar bottom plates. The material carrying device is a material frame assembly. Multiple guide pillars are arranged between the material frame assembly and the guide pillar bottom plate. One end of each guide pillar is connected to the bottom of the material frame assembly, and the other end is connected to the guide pillar bottom plate. One end of the screw rod is connected to the material frame assembly, and the other end of the screw rod is connected to the guide pillar bottom plate. Multiple bearings are arranged on the workbench of the frame and are correspondingly sleeved on multiple guide pillars. The screw motor drives the material frame assembly to step up. The material frame assembly includes a slide rail fixing plate, a drawer slide rail, a slide rail connecting plate, a material frame tray and a material frame; the slide rail fixing plate is arranged on the top of multiple guide pillars, the drawer slide rail is arranged on the slide rail fixing plate, the slide rail connecting plate is an L-shaped structure, one end of the slide rail connecting plate is connected to the material frame tray, and the other end of the slide rail connecting plate is connected to the drawer slide rail, and the material frame is placed on the material frame tray.

12. The operating method of a dual-station laser coding device according to claim 1, characterized in that: The product feeding mechanism also includes bearings, guide pillars, guide pillar bottom plates and lifting plates. One end of the screw rod is connected to the lifting plate, and the other end of the screw rod is connected to the guide pillar bottom plate. Multiple guide pillars are arranged between the lifting plate and the guide pillar bottom plate. Each guide pillar is respectively equipped with a bearing. Each bearing is arranged on a workbench of a rack corresponding to each guide pillar. The material carrier plate is arranged on the lifting plate. The screw motor drives the lifting plate and the material carrier plate to step and lift. Or the product feeding mechanism also includes a material frame assembly, and the material frame assembly includes a slide rail fixing plate, a drawer slide rail, a slide rail connecting plate, a material frame tray, a material frame and a material carrier plate; the slide rail fixing plate is arranged on the workbench of the frame, the drawer slide rail is arranged on the slide rail fixing plate, the slide rail connecting plate is an L-shaped structure, one end of the slide rail connecting plate is connected to the material frame tray, and the other end of the slide rail connecting plate is connected to the drawer slide rail, the material frame is placed on the material frame tray, and the middle area of ​​the material frame tray and the material frame are respectively provided with windows for the lifting plate to pass through, and the window size is smaller than the material carrier plate size, and the material carrier plate can be placed and overlapped on the inner edge of the material frame, and the screw motor drives the lifting plate to lift the material carrier plate and make the lifting plate and the material carrier plate step by step.

13. The operating method of a dual-station laser coding device according to any one of claims 1 to 12, characterized in that: It also includes a camera, which is an upper camera and / or a lower camera. The upper camera is arranged above the product feeding mechanism with its lens facing the product feeding mechanism; the lower camera is arranged on a workbench within the travel range of the material transfer mechanism with its lens facing upward.

14. The operating method of a dual-station laser coding device according to any one of claims 1 to 12, characterized in that: It also includes a defective product receiving frame, which is arranged within the travel range of the material transfer mechanism.

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