A steel piston skirt dot matrix marking, size detection and two-dimensional code verification integrated processing system and processing method

Abstract

The application provides a steel piston skirt dot matrix marking, size detection and two-dimensional code verification integrated processing system, which comprises a feeding frame, a visual grabbing manipulator, an integrated typing tool base, a telescopic positioning top rod, a profiling typing mold core, a forgings mistake-proof contact switch, an upper pressing mechanism, a dot matrix marking head, a needle seat integrated two-dimensional code scanner, an upper pressing mechanism contact sensor, an outside semi-enclosed sensing module, a base contact sensor, an audible and visual alarm indicator, a data transmission server, a forgings taking-out manipulator and a subsequent oil immersion repair device. The steel piston skirt dot matrix marking, size detection and two-dimensional code verification integrated processing system provided by the application integrates the visual grabbing manipulator, the integrated typing tool base, the dot matrix marking head, the needle seat integrated two-dimensional code scanner, the outside semi-enclosed sensing module and the data transmission server in the same station, realizes integrated automatic operation of marking, size detection and two-dimensional code verification, and reduces workpiece carrying and repeated clamping.

Description

Technical Field

[0001] This invention relates to the field of marking and inspection technology for steel piston skirt forgings, and in particular to an integrated processing system and method for dot matrix marking, dimensional inspection and QR code verification of steel piston skirts. Background Technology

[0002] Steel piston skirts are key moving components in diesel engines. They are manufactured using a closed-circuit hot forging process. During the mass production of steel piston skirts, each forging needs to be uniquely identified and marked to establish a full life-cycle traceability system. At the same time, the external dimensions of the forgings need to be inspected, and the marking quality needs to be verified to ensure that the products are qualified before they can be transferred to the next process.

[0003] However, the existing steel piston skirt marking and quality inspection processes rely entirely on manual step-by-step operation, which has many drawbacks. First, the entire process depends on manual alignment of the piston skirt, which easily leads to the forging being placed upside down, resulting in incorrect marking and scrapped forgings. There is no automatic error prevention structure, making it difficult to control the outflow of defective products. Second, the separate workstations for dot matrix marking, QR code scanning verification, and dimensional inspection require multiple sets of tooling and multiple testing devices, occupying a large area. Manual transfer and loading / unloading are time-consuming, making the entire process lengthy. In addition, QR code scanning and full dimensional inspection rely on manual visual inspection and simple measuring tools. There is no automatic data collection and upload channel, making it impossible to achieve full life-cycle digital traceability of forgings. Multiple operators are required for loading / unloading, marking re-inspection, and QR code inspection throughout the process. Long-term mass production has led to continuously rising labor costs, making it difficult to adapt to the needs of intelligent forging production line upgrades.

[0004] Therefore, it is necessary to provide an integrated processing system and method for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides an integrated processing system for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts. It solves the problems of existing steel piston skirt marking, dimensional inspection, and QR code verification processes being scattered across different workstations, relying on manual operation, and the tendency for forgings to be placed upside down, leading to incorrect marking positions; each process requiring independent equipment, resulting in large footprints and long cycle times; lack of automatic data collection and uploading channels, making it impossible to achieve full lifecycle digital traceability, and high labor costs.

[0006] To solve the above-mentioned technical problems, the present invention provides an integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts, comprising:

[0007] The components include: a feeding frame, a vision-based gripping robot, an integrated typing fixture base, a telescopic positioning top rod, a copy typing mold core, a forging error-proof contact switch, an upper pressure clamping mechanism, a dot matrix marking machine head, a needle seat integrated QR code scanner, an upper pressure mechanism contact sensor, an outer semi-enclosed sensing module, a base contact sensor, an audible and visual alarm indicator, a data transmission server, a forging removal robot, and a subsequent oil immersion and rework device.

[0008] The vision-based gripping robot is located on one side of the loading frame and is used to grip the steel piston skirt forging and place it on the integrated typing fixture base.

[0009] The integrated typing fixture base is equipped with the telescopic positioning top rod, the copy typing mold core, the forging anti-misoperation contact switch, and the base contact sensor.

[0010] The upper pressing mechanism is located above the integrated typing fixture base, and the upper pressing mechanism is equipped with a contact sensor.

[0011] The dot matrix marking head is positioned above the copying typesetting mold core, and the needle holder integrated with the QR code scanner is integrated into the needle holder portion of the dot matrix marking head.

[0012] The outer semi-enclosed sensing module is disposed on the outside of the integrated typing fixture base;

[0013] The audible and visual alarm indicator and the data transmission server are respectively located on one side of the integrated typing fixture base;

[0014] The forging removal robot is located on the other side of the integrated typing fixture base and is used to transfer the typed steel piston skirt forging to the subsequent oil immersion repair device.

[0015] Preferably, the surface of the imitation typesetting die core is provided with a plain text area and a QR code area, wherein the plain text area is used for printing plain text and the QR code area is used for printing QR codes.

[0016] Preferably, multiple telescopic positioning rods are provided, and the multiple telescopic positioning rods are respectively arranged around the integrated typing fixture base for horizontal positioning of the steel piston skirt forging.

[0017] Preferably, the outer semi-enclosed sensing module is arranged in a semi-enclosed structure on the outside of the integrated typing fixture base, and is used to detect the outer contour of the steel piston skirt forging.

[0018] Preferably, the data transmission server is communicatively connected to the vision grasping robot, the dot matrix marking machine head, the needle seat integrated QR code scanner, the outer semi-enclosed sensing module, and the forging removal robot, respectively, for transmitting marking data, scanning data, and control commands.

[0019] Preferably, the pin-mount integrated QR code scanner is provided with an installation component, which includes an installation frame, multiple brackets and an installation plate. The installation frame is fitted onto the surface of the pin-mount integrated QR code scanner, the multiple brackets are respectively connected to the sides of the installation frame, and the installation plate is installed between the multiple brackets.

[0020] Preferably, multiple bolts are provided between the mounting frame and the pin base integrated QR code scanner, and mounting holes are provided at the four corners of the mounting plate surface.

[0021] This invention also proposes a processing method for the integrated processing system of dot matrix marking, size detection, and QR code verification for steel piston skirts, the steps of which are as follows:

[0022] The vision-grabbing robot arm is equipped with a vision scanning module to identify the posture of the forging and distinguish the front and back of the piston skirt. It accurately grasps the steel piston skirt and transfers it to the copying typing mold core station of the integrated typing fixture base. In the initial state of the fixture, the three telescopic positioning rods extend outward. The robot arm places the piston skirt cavity downward in place, and the three rods are compressed simultaneously. The piston skirt accurately fits into the copying typing mold core by its own weight.

[0023] The downward pressing mechanism presses the piston skirt against the forging anti-misalignment contact switch of the forging die core. If the forging is placed in the wrong direction, the anti-misalignment contact switch will not be able to conduct, the system signal will be interrupted, the red light of the audible and visual alarm indicator will be constantly on and a buzzer will sound, locking the marking program. When the forging is placed correctly, the contact switch will be closed, the signal will be normal, the green light will remain constantly on, and the system will unlock the marking program.

[0024] When the marking machine is started, the dot matrix marking head simultaneously completes the dot matrix marking on both sides of the window pin hole on the piston skirt thick edge: one side is engraved with the product traceability information, and the other side is engraved with the matching QR code. After the marking is completed, the dot matrix marking head automatically retracts.

[0025] The needle holder integrates a QR code scanner to directly scan and recognize the newly engraved QR code area. When the QR code information is read normally, the light remains green; if the QR code is blurry, missing, or unrecognizable, the light switches to red and an alarm is triggered to intercept defective forgings.

[0026] After the barcode verification is successful, the upper pressure mechanism contact sensor, the outer semi-enclosed sensor module, and the base contact sensor extend synchronously to collect the piston skirt's external dimensions data. The system automatically completes data statistics and judgment, and the qualified data is uploaded to the data transmission server for archiving in real time, realizing full digital traceability of the entire part. After the test is completed, all sensors retract synchronously.

[0027] The upper pressing mechanism is lifted and reset, and the three telescopic positioning rods at the bottom of the copy typesetting die core extend synchronously to lift the piston skirt. The forging removal robot removes the forging and transfers it to the subsequent oil immersion repair device for oil immersion rust prevention treatment.

[0028] Compared with related technologies, the integrated processing system and method for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by this invention have the following advantages:

[0029] This invention provides an integrated processing system for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts. By integrating a vision-gripping robotic arm, an integrated typing fixture base, a dot matrix marking head, a needle holder with an integrated QR code scanner, an outer semi-enclosed sensing module, and a data transmission server into the same workstation, it achieves integrated automated operation of marking, dimensional inspection, and QR code verification, reducing workpiece handling and repetitive clamping, and shortening the production cycle. Through the cooperation of a forging error-proof contact switch and a contour typing die core, the system automatically determines the placement direction at the moment the forging is clamped. Forgings in the opposite direction directly trigger an audible and visual alarm to lock the marking program, preventing incorrect marking and scrapping from the source. The needle holder with an integrated QR code scanner enables immediate in-situ scanning verification after marking, eliminating the need for secondary clamping and transfer. Automatic alarms and interception occur for QR code recognition failures. The outer semi-enclosed sensing module, the upper pressure mechanism contact sensor, and the base contact sensor provide synchronous contact-type automatic dimensional inspection at common points, replacing manual visual inspection and manual measuring tools, ensuring consistent and stable inspection accuracy. The data transmission server enables automatic uploading of inspection data and full-process digital traceability, meeting customers' full lifecycle traceability and management requirements. Attached Figure Description

[0030] Figure 1 A schematic diagram of the structure of the first embodiment of the integrated processing system for dot matrix marking, size detection and QR code verification of steel piston skirt provided by the present invention;

[0031] Figure 2 for Figure 1 The diagram shown is a structural schematic of the typewriter core.

[0032] Figure 3 for Figure 1 The diagram shows the structural layout of the marking position on the piston skirt window.

[0033] Figure 4 This is a schematic diagram of the system's electrical control timing process;

[0034] Figure 5 This is a schematic diagram of the second embodiment of the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by the present invention.

[0035] The diagram shows the following components: 1. Feeding frame; 2. Vision gripping robot; 3. Integrated typing fixture base; 4. Telescopic positioning top rod; 5. Copying typing mold core; 6. Forging anti-misoperation contact switch; 7. Upper pressure clamping mechanism; 8. Dot matrix marking machine head; 9. Needle seat integrated QR code scanner; 10. Upper pressure mechanism contact sensor; 11. Outer semi-enclosed sensing module; 12. Base contact sensor; 13. Audible and visual alarm indicator light; 14. Data transmission server; 15. Steel piston skirt forging; 16. Forging removal robot; 17. Subsequent oil immersion rework device.

[0036] 18. Mounting components; 181. Mounting frame; 182. Bracket; 183. Mounting plate.

[0037] 19. Bolt; 20. Mounting hole. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] First Embodiment

[0040] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the integrated processing system for dot matrix marking, size detection and QR code verification of steel piston skirt provided by the present invention; Figure 2 for Figure 1 The diagram shown is a structural schematic of the typewriter core. Figure 3 for Figure 1 The diagram shows the structural layout of the marking position on the piston skirt window. Figure 4 This is a schematic diagram of the system's electrical control timing process. The integrated processing system for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts includes:

[0041] 1. Feeding frame; 2. Vision gripping robot; 3. Integrated typing fixture base; 4. Telescopic positioning top rod; 5. Copy typing mold core; 6. Forging anti-misoperation contact switch; 7. Pressing mechanism; 8. Dot matrix marking machine head; 9. Needle seat integrated QR code scanner; 10. Pressing mechanism contact sensor; 11. Outer semi-enclosed sensing module; 12. Base contact sensor; 13. Audible and visual alarm indicator light; 14. Data transmission server; 15. Forging removal robot; 16. Subsequent oil immersion and rework device; 17.

[0042] The vision-gripping robot 2 is located on one side of the loading frame 1 and is used to grip the steel piston skirt forging 15 and place it on the integrated typing fixture base 3.

[0043] The integrated typing fixture base 3 is equipped with the telescopic positioning top rod 4, the copy typing mold core 5, the forging anti-misoperation contact switch 6, and the base contact sensor 12.

[0044] The upper pressing mechanism 7 is disposed above the integrated typing fixture base 3, and the upper pressing mechanism 7 is provided with the upper pressing mechanism contact sensor 10;

[0045] The dot matrix marking head 8 is positioned above the imitation typesetting mold core 5, and the needle holder integrated QR code scanner 9 is integrated into the needle holder portion of the dot matrix marking head 8.

[0046] The outer semi-enclosed sensing module 11 is disposed on the outside of the integrated typing fixture base 3;

[0047] The audible and visual alarm indicator 13 and the data transmission server 14 are respectively located on one side of the integrated typing fixture base 3;

[0048] The forging removal robot 16 is located on the other side of the integrated typing fixture base 3, and is used to transfer the typed steel piston skirt forging 15 to the subsequent oil immersion repair device 17.

[0049] The surface of the imitation typesetting die core 5 is provided with a plain text area and a QR code area. The plain text area is used to print plain text, and the QR code area is used to print QR codes.

[0050] Multiple telescopic positioning rods 4 are provided, and the multiple telescopic positioning rods 4 are respectively arranged around the integrated typing tool base 3 for horizontal positioning of the steel piston skirt forging 15.

[0051] The outer semi-enclosed sensing module 11 is arranged in a semi-enclosed structure on the outside of the integrated typing fixture base 3, and is used to detect the outer contour of the steel piston skirt forging 15.

[0052] The data transmission server 14 is communicatively connected to the vision grasping robot 2, the dot matrix marking head 8, the needle seat integrated QR code scanner 9, the outer semi-enclosed sensing module 11, and the forging removal robot 16, respectively, and is used to transmit marking data, scanning data, and control commands.

[0053] The subsequent oil immersion repair device 17 is an oil immersion tank, which is filled with rust-preventive oil. Qualified forgings are placed in the oil immersion tank and soaked for a certain period of time. After being taken out, a rust-preventive oil film is formed on the surface.

[0054] The forging removal robot 16 is an industrial robot or a pneumatic robot. Its gripping fixture is adapted to the gripping fixture of the vision gripping robot 2. The upper pressing and clamping mechanism 7 is lifted and reset. The three push rods 4 at the bottom of the mold core 5 extend synchronously to lift the piston skirt 15. The robot 16 removes the forging and transfers it to the subsequent oil immersion repair device 17.

[0055] The data transmission server 14 is an industrial-grade industrial control computer or edge computing server. It communicates with each actuator and sensor via industrial Ethernet. After the barcode verification is qualified, three sets of contact sensors (16 channels for the upper pressing mechanism, 8 channels for the outer semi-enclosure, and 2 channels for the base, for a total of 26 points) extend synchronously to collect the piston skirt's outer dimension data. The system automatically completes data statistics and judgment. Qualified data is uploaded to the data transmission server 14 for archiving in real time, realizing full-part digital traceability. After the inspection is completed, all sensors retract synchronously.

[0056] The audible and visual alarm indicator 13 is an indicator light with integrated audible and visual alarm functions. It is connected to the controller via a signal line. The audible and visual alarm indicator 13 provides independent alarms for two types of abnormalities: reverse forging and QR code recognition failure. When the forging is reversed, a red light is constantly lit and a buzzer is sounded. When the QR code recognition fails, the red light is switched on and an alarm is triggered.

[0057] The base contact sensor 12 is a pressure sensor or proximity switch, installed at the bottom of the copy typesetting mold core 5. Two contact sensors are arranged. When the forging is placed in place and pressed, the sensor detects the contact pressure between the bottom of the forging and the surface of the mold core, confirming that the forging is completely fitted, and simultaneously collects the bottom dimension data.

[0058] The outer semi-enclosed sensing module 11 is an array of multiple photoelectric sensors or contact sensors, arranged in a semi-enclosed manner around the integrated typing fixture base 3. It has 8 contact sensors. When the forging is placed on the copying typing mold core 5, the outer semi-enclosed sensing module 11 scans and detects the outline of the forging, compares the detection data with the standard model, and determines whether the forging's dimensions are qualified.

[0059] The needle holder integrated QR code scanner 9 is a miniature industrial QR code scanning head, which is fixedly installed on the side of the needle holder of the dot matrix marking machine head 8 and moves synchronously with the needle holder. After marking is completed, the needle holder integrated QR code scanner 9 directly scans the marking area at the current position. When the QR code information is read normally, the green light is kept; if the QR code is blurry, missing, or unrecognizable, the red light is switched and an alarm is triggered to intercept defective forgings without the need for secondary clamping and transfer.

[0060] The dot matrix marking head 8 is a pneumatic dot matrix marking machine. It uses marking needles on the needle holder to mark characters and QR code patterns composed of dot matrix on the surface of the forging. The dot matrix marking head 8 is mounted on an adjustable bracket and can be adjusted in the X, Y, and Z directions to adapt to the marking position requirements of forgings of different specifications. After the marking machine is started, the dot matrix marking is processed simultaneously on both sides of the window pin hole on the piston skirt thickness edge: one side is engraved with product traceability information, and the other side is engraved with the matching QR code. After the marking is completed, the dot matrix needle head 8 automatically retracts.

[0061] The upper pressing mechanism 7 is a pneumatic or hydraulically driven pressing device, which includes a pressing cylinder and a pressing head. The pressing cylinder is fixedly installed on the frame, and the pressing head is connected to the end of the cylinder piston rod. Before marking, the pressing cylinder drives the pressing head to move downward, pressing the upper surface of the forging and firmly fixing the forging onto the copying typesetting die core 5. The upper pressing mechanism 7 is equipped with an upper pressing mechanism contact sensor 10, which is a 16-channel contact sensor used to detect whether the pressing head has been pressed into place and to synchronously collect the outer dimension data of the upper surface of the forging under the pressing state.

[0062] The forging error prevention contact switch 6 is a contact sensor. Its contact extends to the predetermined detection position of the copying typesetting die core 5. When the forging is correctly placed, the edge of the forging contacts the contact, triggering the switch signal. If the forging is not placed correctly or is in the wrong direction, the error prevention contact switch 6 cannot conduct, the system signal is interrupted, triggering a red light to stay on and a buzzer alarm to sound, locking the marking program. When the forging is correctly placed, the contact switch closes, the signal is normal, the green light stays on, and the system unlocks the marking program.

[0063] The copying typesetting die core 5 is made of wear-resistant alloy steel. The shape of its copying protrusion matches the inner cavity shape of the piston skirt forging, so that the forging can be naturally centered after placement. The upper surface of the copying typesetting die core 5 has a clear code area and a QR code area at the corresponding marking position of the forging. The clear code area is used to print human-readable character codes, and the QR code area is used to print QR codes containing product information. The copying typesetting die core 5 integrates the functions of marking support, positioning, error prevention, and QR code verification base.

[0064] The telescopic positioning push rod 4 is a pneumatic or spring-driven telescopic rod with a guide slope at its top. When the forging is placed on the copying typesetting mold core 5, multiple telescopic positioning push rods 4 extend from all sides and contact the outer contour of the forging, pushing the forging to the predetermined center position to achieve precise horizontal positioning. After marking is completed, the three push rods 4 at the bottom of the mold core 5 extend synchronously to lift the piston skirt 15, making it easier for the forging to be picked up by the robot arm 16.

[0065] The integrated typing fixture base 3 is a rectangular metal base, which is fixedly installed on the workbench. The integrated typing fixture base 3 is equipped with telescopic positioning top rods 4, a copy typing mold core 5, a forging anti-misoperation contact switch 6, and a base contact sensor 12. The upper surface of the integrated typing fixture base 3 is provided with an installation groove that matches the copy typing mold core 5. The copy typing mold core 5 is embedded in the installation groove. In the initial state of the fixture, the three telescopic positioning top rods 4 extend outward by 3mm. After the robot arm 2 places the piston skirt 15 with the cavity facing down in place, the three top rods 4 are compressed synchronously. The piston skirt 15 accurately fits into the copy typing mold core 5 by its own weight.

[0066] The vision-gripping robotic arm 2 includes a multi-joint robotic arm and a vision camera and gripping fixture installed at the end of the arm. The vision camera takes pictures of the forgings placed in the loading frame 1 to identify the posture and orientation of the forgings. The robotic arm accurately grips the forgings based on the visual positioning information and transports them to the contour typing mold core 5 on the integrated typing fixture base 3, replacing manual hand placement.

[0067] The loading frame 1 is a rectangular frame structure, formed by welding metal profiles. It has a positioning partition inside for arranging the forgings in a predetermined posture. The bottom of the loading frame 1 can be equipped with casters for easy movement to a designated position on the production line. The loading frame 1 serves as a storage bin for steel piston skirt forgings to be processed, storing steel piston skirt forgings 15 to be marked, and providing a material picking station for the vision gripping robot 2.

[0068] The processing steps of the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by this invention are as follows:

[0069] The vision scanning module of the vision gripping robot 2 identifies the posture of the forging 15 and distinguishes the front and back of the piston skirt 15. It accurately grips the steel piston skirt 15 and transfers it to the position of the copying typing mold core 5 of the integrated typing fixture base 3. In the initial state of the fixture, the three telescopic positioning rods 4 extend outward by 3mm. The robot 2 places the piston skirt 15 with the cavity facing down in place. The three rods 4 are compressed simultaneously. The piston skirt 15 accurately fits into the copying typing mold core 5 by its own weight.

[0070] The upper pressing mechanism 7 presses the piston skirt 15 against the copying die core 5 with the forging anti-misplacement contact switch 6. If the forging 15 is placed in the wrong direction, the forging anti-misplacement contact switch 6 cannot conduct, the system signal is interrupted, and the audible and visual alarm indicator 13 is triggered with a red light constantly on and a buzzer warning, locking the marking program. When the forging 15 is placed correctly, the contact switch is closed, the signal is normal, the green light remains constantly on, and the system unlocks the marking program.

[0071] When the marking machine is started, the dot matrix marking head 8 simultaneously completes the dot matrix marking on both sides of the window pin hole on the piston skirt thick skirt edge: one side is engraved with product traceability information, and the other side is engraved with the matching QR code. After the marking is completed, the dot matrix marking head 8 automatically retracts.

[0072] The needle holder integrates a QR code scanner 9 to directly scan and recognize the newly engraved QR code area. When the QR code information is read normally, the green light remains; if the QR code is blurry, missing, or unrecognizable, the red light is switched and an alarm is triggered to intercept defective forgings.

[0073] After the barcode verification is successful, 26 points, including the upper pressing mechanism contact sensor 10 (16 channels), the outer semi-enclosed sensing module 11 (8 channels), and the base contact sensor 12 (2 channels), simultaneously extend to collect the piston skirt's external dimensions data. The system automatically completes data statistics and judgment. Qualified data is uploaded to the data transmission server 14 for archiving in real time, realizing full-part digital traceability. After the test is completed, all sensors retract synchronously.

[0074] The upper pressing mechanism 7 is lifted and reset, and the three telescopic positioning rods 4 at the bottom of the imitation typesetting mold core 5 extend synchronously to lift the piston skirt 15. The forging removal robot 16 removes the forging and transfers it to the subsequent oil immersion repair device 17 for oil immersion rust prevention treatment.

[0075] Compared with related technologies, the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by this invention has the following advantages:

[0076] This invention provides an integrated processing system for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts. By integrating a vision-gripping robot 2, an integrated typing fixture base 3, a dot matrix marking head 8, a needle holder integrated QR code scanner 9, an outer semi-enclosed sensing module 11, and a data transmission server 14 into the same workstation, it achieves integrated automated operation of marking, dimensional inspection, and QR code verification, reducing workpiece handling and repetitive clamping, and shortening the production cycle. Through the cooperation of a forging anti-misalignment contact switch 6 and a contour typing die core 5, the system automatically determines the placement direction at the moment of forging clamping, and directly uses sound and light to detect reversed forgings. The alarm locks the marking program, preventing incorrect and scrapped markings from the source; the needle holder integrates a QR code scanner 9 to achieve immediate on-site scanning and verification after marking, eliminating the need for secondary clamping and transportation; and it automatically alarms and intercepts if the QR code recognition is faulty; it uses 26 points of synchronous contact-type automatic size detection through the outer semi-enclosed sensing module 11, the upper pressure mechanism contact sensor 10, and the base contact sensor 12, replacing manual visual inspection and manual measuring tools, ensuring consistent and stable detection accuracy; and it uses a data transmission server 14 to achieve automatic uploading of detection data and full-process digital traceability, meeting the customer's full life-cycle traceability and control requirements.

[0077] Second Embodiment

[0078] Please refer to the following: Figure 5 Based on the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided in the first embodiment of this application, the second embodiment of this application proposes another integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0079] Specifically, the difference between the steel piston skirt dot matrix marking, size detection and QR code verification integrated processing system provided in the second embodiment of this application is that it also includes an installation component 18. The installation component 18 is disposed on the needle seat integrated QR code scanner 9. The installation component 18 includes an installation frame 181, multiple brackets 182 and an installation plate 183. The installation frame 181 is sleeved on the surface of the needle seat integrated QR code scanner 9. The multiple brackets 182 are respectively connected to the sides of the installation frame 181. The installation plate 182 is installed between the multiple brackets 182.

[0080] Multiple bolts 19 are provided between the mounting frame 181 and the pin base integrated QR code scanner 9, and mounting holes 20 are provided at the four corners of the surface of the mounting plate 183.

[0081] A rubber pad is adhered to the inner wall of the mounting frame 181 to increase friction when the mounting frame 181 is installed on the surface of the pin-mount integrated QR code scanner 9. A threaded hole adapted to the bolt 19 is provided between the mounting frame 181 and the pin-mount integrated QR code scanner 9. The mounting hole 20 is rectangular in shape to increase the range of installation positions.

[0082] The working principle of the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by this invention is as follows:

[0083] In use, the mounting frame 181 with mounting plate 183 and multiple brackets 182 is fitted onto the surface of the pin-mount integrated QR code scanner 9, and then multiple bolts 19 are threaded through the mounting frame 181 and connected to the pin-mount integrated QR code scanner 9.

[0084] After the mounting frame 181 with mounting plate 183 and multiple brackets 182 is installed, multiple threaded bolts are finally threaded through the multiple mounting holes 20 on the mounting plate 183 and connected to the designated position on the equipment for use.

[0085] Compared with related technologies, the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts provided by this invention has the following advantages:

[0086] This invention provides an integrated processing system for dot matrix marking, size detection, and QR code verification of a steel piston skirt. By setting an installation component 18 on the needle seat integrated QR code scanner 9, the scanner is stably fixed to the needle seat of the dot matrix marking machine head 8 using a mounting frame 181, a bracket 182, and a mounting plate 183. This ensures that the scanner moves synchronously with the needle seat during the marking process and that the positional accuracy is stable, thus ensuring the accuracy and reliability of QR code scanning verification after marking.

[0087] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An integrated processing system for dot matrix marking, dimensional inspection, and QR code verification of steel piston skirts, characterized in that: include: The components include: a feeding frame, a vision-based gripping robot, an integrated typing fixture base, a telescopic positioning top rod, a copy typing mold core, a forging error-proof contact switch, an upper pressure clamping mechanism, a dot matrix marking machine head, a needle seat integrated QR code scanner, an upper pressure mechanism contact sensor, an outer semi-enclosed sensing module, a base contact sensor, an audible and visual alarm indicator, a data transmission server, a forging removal robot, and a subsequent oil immersion and rework device. The vision-based gripping robot is located on one side of the loading frame and is used to grip the steel piston skirt forging and place it on the integrated typing fixture base. The integrated typing fixture base is equipped with the telescopic positioning top rod, the copy typing mold core, the forging anti-misoperation contact switch, and the base contact sensor. The upper pressing mechanism is located above the integrated typing fixture base, and the upper pressing mechanism is equipped with an upper pressing mechanism contact sensor; The dot matrix marking head is positioned above the copying typesetting mold core, and the needle holder integrated with the QR code scanner is integrated into the needle holder portion of the dot matrix marking head. The outer semi-enclosed sensing module is disposed on the outside of the integrated typing fixture base; The audible and visual alarm indicator and the data transmission server are respectively located on one side of the integrated typing fixture base; The forging removal robot is located on the other side of the integrated typing fixture base and is used to transfer the typed steel piston skirt forging to the subsequent oil immersion repair device.

2. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, The surface of the imitation typesetting die core is provided with a plain text area and a QR code area. The plain text area is used to print plain text, and the QR code area is used to print QR codes.

3. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, Multiple telescopic positioning rods are provided, and the multiple telescopic positioning rods are respectively arranged around the integrated typing fixture base for horizontal positioning of the steel piston skirt forging.

4. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, The outer semi-enclosed sensing module is arranged in a semi-enclosed structure on the outside of the integrated typing fixture base, and is used to detect the outer contour of the steel piston skirt forging.

5. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, The data transmission server is communicatively connected to the vision grasping robot, the dot matrix marking machine head, the needle seat integrated QR code scanner, the outer semi-enclosed sensing module, and the forging removal robot, and is used to transmit marking data, scanning data, and control commands.

6. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, The pin-mount integrated QR code scanner is provided with an installation component, which includes an installation frame, multiple brackets and an installation plate. The installation frame is fitted onto the surface of the pin-mount integrated QR code scanner, the multiple brackets are respectively connected to the sides of the installation frame, and the installation plate is installed between the multiple brackets.

7. The integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 6, characterized in that, Multiple bolts are provided between the mounting frame and the pin base integrated QR code scanner, and mounting holes are provided at the four corners of the mounting plate surface.

8. The processing method of the integrated processing system for dot matrix marking, size detection, and QR code verification of steel piston skirts according to claim 1, characterized in that, The steps are as follows: The vision-grabbing robot arm is equipped with a vision scanning module to identify the posture of the forging and distinguish the front and back of the piston skirt. It accurately grasps the steel piston skirt and transfers it to the copying typing mold core station of the integrated typing fixture base. In the initial state of the fixture, the three telescopic positioning rods extend outward. The robot arm places the piston skirt cavity downward in place, and the three rods are compressed simultaneously. The piston skirt accurately fits into the copying typing mold core by its own weight. The downward pressing mechanism presses the piston skirt against the forging anti-misalignment contact switch of the forging die core. If the forging is placed in the wrong direction, the anti-misalignment contact switch will not be able to conduct, the system signal will be interrupted, the red light of the audible and visual alarm indicator will be constantly on and a buzzer will sound, locking the marking program. When the forging is placed correctly, the contact switch will be closed, the signal will be normal, the green light will remain constantly on, and the system will unlock the marking program. When the marking machine is started, the dot matrix marking head simultaneously completes the dot matrix marking on both sides of the window pin hole on the piston skirt thick edge: one side is engraved with the product traceability information, and the other side is engraved with the matching QR code. After the marking is completed, the dot matrix marking head automatically retracts. The needle holder integrates a QR code scanner to directly scan and recognize the newly engraved QR code area. When the QR code information is read normally, the light remains green; if the QR code is blurry, missing, or unrecognizable, the light switches to red and an alarm is triggered to intercept defective forgings. After the barcode verification is successful, the upper pressure mechanism contact sensor, the outer semi-enclosed sensor module, and the base contact sensor extend synchronously to collect the piston skirt's external dimensions data. The system automatically completes data statistics and judgment, and the qualified data is uploaded to the data transmission server for archiving in real time, realizing full digital traceability of the entire part. After the test is completed, all sensors retract synchronously. The upper pressing mechanism is lifted and reset, and the three telescopic positioning rods at the bottom of the copy typesetting die core extend synchronously to lift the piston skirt. The forging removal robot removes the forging and transfers it to the subsequent oil immersion repair device for oil immersion rust prevention treatment.

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