Workpiece surface contamination two-dimensional code detection device

Abstract

This utility model discloses a workpiece surface contamination QR code detection device, including a base worktable, an X-line module, a Z-line module, a Y-rotation module, a workpiece fixture, and a vision module. The X-line module, Z-line module, Y-rotation module, workpiece fixture, and vision module are respectively arranged on the base worktable. The X-line module is mounted above the entire device via a profile vertical beam, the Z-line module is mounted in front of the X-line module, the vision module is mounted in front of the Z-line module, and the Y-rotation module is located below the vision module and mounted on the base worktable. This utility model can solve the technical problems of low detection efficiency and low detection reliability in existing detection devices.

Description

Technical Field

[0001] This utility model belongs to the field of visual inspection technology, specifically relating to a workpiece surface contamination QR code detection device. Background Technology

[0002] With the continuous improvement of industrial automation and informatization, QR codes, with their high data storage density, low cost, fast reading, and good fault tolerance, have been widely used in product traceability and information management in the manufacturing industry. Manufacturers typically mark workpiece surfaces with QR codes to store unique identification information, enabling precise tracking of products throughout their entire lifecycle, including design, production, application, and recycling, thereby improving production efficiency and quality control.

[0003] However, in actual workpiece inbound and outbound management, QR code reading still mainly relies on manual handheld scanning devices. In this process, workers need to frequently adjust the angle and distance of the scanner to adapt to different workpiece postures and surface conditions, resulting in low operational efficiency, reliance on manual experience, and difficulty in meeting the needs of high-frequency, high-volume industrial applications. Furthermore, during the manufacturing, transportation, and use of workpieces, their surfaces are often in complex environments, easily affected by interference factors such as oil, dust, and glare, leading to reduced QR code image contrast, blurred edges, and obstruction of information modules. This significantly reduces the accuracy and stability of reading. Especially in the transportation and processing of oils or oil-containing materials, lubricating oil, coolant, and other oils easily adhere to the surfaces of tools and workpieces, severely obscuring the QR code module information, making it difficult for the reading device to accurately locate and identify the code, directly affecting the integrity of information transmission and the effectiveness of intelligent traceability in the production process.

[0004] Therefore, there is an urgent need to design a QR code detection device that is designed for complex oily environments, has high reading accuracy and automation capabilities, so as to improve the identification stability and management efficiency of the manufacturing industry under harsh working conditions. Summary of the Invention

[0005] In order to overcome the problems existing in the prior art, the purpose of this utility model is to provide a workpiece surface contamination QR code detection device, which can solve the technical problems of low detection efficiency and low detection reliability of existing detection devices.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A workpiece surface contamination QR code detection device includes a base worktable 1, an X-line module 3, a Z-line module 4, a Y-rotation module 5, a workpiece fixture 6, and a vision module.

[0008] The base worktable 1 is respectively equipped with an X-line module 3, a Z-line module 4, a Y-rotation module 5, a workpiece fixture 6, and a vision module. The X-line module 3 is installed above the entire device via a profile vertical beam 16. The Z-line module 4 is installed in front of the X-line module 3. The vision module is installed in front of the Z-line module 3. The Y-rotation module 5 is located below the vision module and is installed on the base worktable 1.

[0009] The X-line module 3 is used to control the visual module mounted above the Z-line module 4 to move in the left and right directions in order to better acquire images.

[0010] The Z-line module 4 is used to control the up-and-down movement of the vision module to adjust the distance between the industrial camera and the QR code, so as to clearly capture the QR code image.

[0011] The Y-rotation module 5 is used to control the workpieces placed on the workpiece fixture to move sequentially below the vision module so that the vision module can collect the QR code image.

[0012] The workpiece clamp 6 is used to place workpieces of different types and sizes carrying QR codes;

[0013] The vision module is used to capture the QR code image above the workpiece.

[0014] The base workbench 1 includes a base, and four feet 2 are installed at the four ends of the base by threaded connection.

[0015] The X-line module 3 is installed on the X-module mounting plate 13 by a threaded connection. The X-module mounting plate 13 is installed on the profile beam 15 by a threaded connection. The profile beam 15 is fixed to the two profile vertical beams 16 by two left and right connecting angle brackets b17. The profile vertical beams 16 are installed on the base by connecting angle brackets c18.

[0016] The Z-linear module 4 is installed on the Z-module mounting plate 14 by a threaded connection, and the Z-module mounting plate 14 is fixed to the X-module slider 3-1 by a threaded connection; the X-module slider 3-1 is located above the X-linear module 3 and is provided with threaded holes for connection with other modules.

[0017] The Y-rotation module 5 is installed on the connector b11 by a threaded connection. The connector b11 is fixed to the base by the connecting bracket a12. The motor mounting base 7 is installed on the fastening plate 5-6 by a threaded connection. The motor 9 is installed on the motor mounting base 7 and connected to the transmission shaft a5-3 by the coupling 8. The workpiece clamp 6 is installed on the Y-rotation slider 5-7.

[0018] The workpiece fixture 6 includes a fixture mounting base 6-1, a workpiece placement platform a6-2, a workpiece placement platform b6-3, and a workpiece placement platform c6-4; and the workpiece placement platforms a6-2, b6-3, and c6-4 have protrusions that restrict the movement of the workpiece, and are mounted on the groove of the fixture mounting base 6-1 by clearance fit.

[0019] The fixture mounting base 6-1 is a rectangular part with a certain thickness. It has mounting holes at the four corners for mounting above the Y-rotating slider 5-7, and a rectangular hole of a certain width in the center for mounting the workpiece placement table.

[0020] The step at the tail of workpiece placement platform a6-2 mates with the fixture mounting base 6-1, and has two arc-shaped protrusions and a round hole at the front. The step at the tail of workpiece placement platform b6-3 mates with the fixture mounting base 6-1, and has two arc-shaped protrusions and a round hole in the middle at the front. The step at the tail of workpiece placement platform c6-4 mates with the fixture mounting base 6-1, and has two opposing square protrusions at the front and arcs on the left and right sides at the bottom.

[0021] The vision module includes an industrial camera 25 and a lens 26 mounted on the industrial camera 25. The industrial camera 25 is mounted on a camera mounting block 24 via a threaded connection. The camera mounting block 24 is connected to a cross plate 23 via an adapter 22. The adapter 22 is fixed to a movable slider a21-1 via bolts. The movable slider a21-1 is fixed to a rack 20. The rack 20 is mounted on a mounting plate 19. The mounting plate 19 is mounted on a Z-module slider 4-1 via a threaded connection. The Z-module slider 4-1 is located above the Z-linear module 4 and is provided with threaded holes for connection with other modules.

[0022] The movable slider b21-2 is mounted on the rack 20, the light source fixing part a27 is mounted on the movable slider b21-2, and the two light source fixing parts b28 are pressed and fixed on the light source fixing part a27 by tightening the nuts 30. The ring light source 29 is fixedly mounted on the two light source fixing parts b28 by threads.

[0023] The movable slider b21-2 and the movable slider a21-1 are mounted on the same rack 20, with the movable slider b21-2 located below the movable slider a21-1.

[0024] The beneficial effects of this utility model are:

[0025] This invention proposes an adjustable light source installation method. By mounting a camera lens and a light source on a rack, the position between the camera and the light source can be adjusted. By mounting a vision module above the Z-axis slider, the position between the light source and the workpiece to be measured can be adjusted. The Z-axis can be coarsely adjusted and the camera and light source can be finely adjusted, making the damaged QR code image clearer under illumination and improving the reading effect.

[0026] This invention proposes a workpiece fixture that facilitates quick loading and unloading, supports rapid replacement of workpieces and fixtures, is highly versatile, and is easy to operate.

[0027] This invention has a high degree of automation, which can effectively improve the scanning and reading efficiency of damaged QR codes and speed up the workpiece entry and exit process. Attached Figure Description

[0028] Figure 1 This is a front view of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the camera detection and light source module.

[0030] Figure 3 This is a schematic diagram of the back of the overall structure of this utility model.

[0031] Figure 4 This is a schematic diagram of a Y-rotation module.

[0032] Figure 5 This is a schematic diagram of the workpiece fixture. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings.

[0034] Reference Figure 1 , Figure 3 A workpiece surface contamination QR code detection device includes a base worktable 1, an X linear module 3, a Z linear module 4, a Y rotary module 5, a workpiece fixture 6, and a vision module.

[0035] The base workbench 1 includes a base and four feet 2 which are connected by threads to the four ends of the base to provide fixed support.

[0036] The X-linear module 3 is installed on the X-module mounting plate 13 by a threaded connection. The X-module mounting plate is installed on the profile beam 15 by a threaded connection. The profile beam 15 is fixed to the two profile vertical beams 16 by two left and right connecting brackets b17. The profile vertical beams 16 are installed on the base 1 by connecting brackets c18. The Z-linear module 4 is installed on the Z-module mounting plate 14 by a threaded connection. The Z-module mounting plate 14 is fixed to the X-module slider 3-1 by a threaded connection.

[0037] Reference Figure 1 , Figure 4The Y-rotation module 5 includes a profile mounting frame 5-5, drive shafts a5-3 and b5-4 distributed at both ends of the profile mounting frame 5-5 and fixedly mounted by four upper and lower fastening plates 5-6, two synchronous pulleys 5-2 respectively mounted on drive shafts a5-3 and b5-4, a synchronous belt 5-1 mounted on the two synchronous pulleys 5-2, a Y-rotation slider 5-7 mounted on the synchronous belt 5-1 by a threaded connection, a mounting block 5-8 fixedly mounted on the profile mounting frame 5-5 by bolts, a connecting piece a10 fixedly connected to the mounting block 5-8, a connecting piece a10 and a connecting piece b11 connected by a thread, a connecting piece b11 fixedly mounted to the base 1 by a connecting angle bracket a12, threaded holes drilled in the fastening plates 5-6, a motor mounting base 7 mounted on the fastening plates 5-6 by a threaded connection, and a motor 9 mounted on the motor mounting base 7 and connected to the drive shaft a5-3 by a coupling 8.

[0038] refer to Figure 1 , Figure 5 The workpiece fixture 6 includes a fixture mounting base 6-1, a workpiece placement platform a6-2, a workpiece placement platform b6-3, and a workpiece placement platform c6-4. The fixture mounting base is fixedly mounted on the Y-rotating slider 5-7 in the Y-rotating module via a threaded connection. The workpiece placement platforms a6-2, b6-3, and c6-4 are mounted on the groove of the workpiece placement platform a6-2 via an transition fit. The workpiece placement platforms a6-2, b6-3, and c6-4 have protruding features to restrict the movement of the workpiece to be inspected in the X and Y directions, facilitating subsequent loading and unloading.

[0039] The fixture mounting base 6-1 is a rectangular part with a certain thickness. It has mounting holes at the four corners for mounting above the Y-rotating slider 5-7, and a rectangular hole of a certain width in the center for mounting the workpiece placement stage. The workpiece placement stage a6-2 has a step at its tail that mates with the fixture mounting base 6-1. It has two arc-shaped protrusions and a round hole at the front for placing small bearings or round workpieces. The workpiece placement stage b6-3 has a step at its tail that mates with the fixture mounting base 6-1. It has two arc-shaped protrusions and a central round hole at the front for placing large bearings. The workpiece placement stage c6-4 has a step at its tail that mates with the fixture mounting base 6-1. It has two opposing square protrusions at the front for placing square workpieces in the center, and the rounded arcs on the left and right sides of the bottom for easy workpiece removal. The specific dimensions of the three workpiece placement stages can be adjusted according to the size of the workpiece.

[0040] Reference Figure 2 , Figure 3The vision module includes an industrial camera 25, a lens 26 mounted on the industrial camera 25, the industrial camera 25 mounted on a camera mounting block 24 via a threaded connection, the camera mounting block 24 connected to an adapter 22 and a horizontal plate 23, the adapter 22 fixed to a movable slider a21-1 by bolts, the movable slider a21-1 fixed to a rack 20, the rack 20 mounted on a mounting plate 19, the mounting plate 19 mounted on a Z-module slider 4-1 via a threaded connection, a movable slider b21-2 mounted on a rack 20, a light source fixing component a27 mounted on the movable slider b21-2, two light source fixing components b28 pressed and fixed to the light source fixing component a27 by tightening nuts 30, and a ring light source 29 fixedly mounted on the two light source fixing components b28 via threads;

[0041] The working principle of this utility model:

[0042] A workpiece surface contamination QR code detection device, when detecting contamination QR codes on the workpiece surface, requires placing the workpiece onto the workpiece fixture 6 from the Z-axis direction with the QR code facing the industrial camera; then, the motor 9 rotates, driving the transmission shaft a5-3 to rotate via the coupling 8, thereby driving the synchronous belt 5-1 to rotate. Since the workpiece fixture 6 is mounted on the Y-rotation slider 5-7, and the Y-rotation slider 5-7 is fixedly mounted on the synchronous belt 5-1 by bolts, when the motor 9 rotates, it ultimately drives the workpiece on the workpiece fixture 6 to perform a return feed motion, and the workpiece reaches the industrial camera 25. The feed stops directly below. The vision module is mounted on mounting plate 19, which is threaded onto the Z-module slider 4-1 of the Z-linear module 4. The Z-linear module 4 is connected to the X-module slider 3-1 of the X-linear module 3 via Z-module mounting plate 15. When the workpiece fixture 6 rotates to the center of the Y-direction for image acquisition by the industrial camera 25, the X-linear module 3 drives the Z-linear module 4 to move, thereby moving the industrial camera 25 to the center of the X-direction for image acquisition. Then, the Z-linear module 4 moves along the Z-axis, causing the industrial camera 25 to reach the appropriate focal length position. This ensures the clarity of the QR code image captured from the tool end face. The industrial camera 25 is mounted on the camera mounting block 24 via a threaded connection. The camera mounting block 24 is connected to the adapter 22 and the horizontal plate 23. The adapter 22 is fixed to the movable slider a21-1 by bolts. The ring light source 29 is mounted on the movable slider b21-2 via light source fixing parts a27 and b28. The movable sliders a21-1 and b21-2 are fitted with the rack 20. When the CNC tool end face reaches the center of the X and Y directions of the image captured by the industrial camera 25, and the industrial camera... When the machine 25 reaches the appropriate focal length, the distance between the ring light source and the industrial camera 25 can be adjusted by moving the slider b21-2, thereby improving the integrity of the workpiece contamination QR code image module information; then the industrial camera 25 collects the QR code image information of the tool end face. After the collection is completed, the Y-rotation module continues to move, sending the workpiece on the next workpiece fixture 6 into the industrial camera 25 for QR code image collection. When the workpiece that has collected the QR code image information reaches the appropriate position, the old workpiece is removed and the new workpiece is placed in. This process is repeated to quickly detect the contamination of the workpiece's QR code information.

Claims

1. A workpiece surface contamination QR code detection device, characterized in that, It includes a base worktable (1), an X-line module (3), a Z-line module (4), a Y-rotation module (5), a workpiece fixture (6), and a vision module; The base worktable (1) is respectively equipped with an X-line module (3), a Z-line module (4), a Y-rotation module (5), a workpiece fixture (6), and a vision module; the X-line module (3) is installed above the entire device through the profile vertical beam (16), the Z-line module (4) is installed in front of the X-line module (3), the vision module is installed in front of the Z-line module (4), and the Y-rotation module (5) is located below the vision module and is installed on the base worktable (1).

2. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The X-line module (3) is used to control the visual module installed above the Z-line module (4) to move in the left and right directions; The Z-line module (4) is used to control the up and down movement of the vision module and adjust the distance between the industrial camera and the QR code. The Y-rotation module (5) is used to control the workpieces placed on the workpiece fixture to move sequentially below the vision module; The workpiece fixture (6) is used to place workpieces of different types and sizes carrying QR codes; The vision module is used to capture the QR code image above the workpiece.

3. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The base workbench (1) includes a base and four feet (2) are installed at the four ends of the base by threaded connection.

4. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The X-line module (3) is installed on the X-module mounting plate (13) by threaded connection. The X-module mounting plate (13) is installed on the profile beam (15) by threaded connection. The profile beam (15) is fixed to the two profile vertical beams (16) by two left and right connecting brackets b (17). The profile vertical beams (16) are installed on the base by connecting brackets c (18).

5. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The Z linear module (4) is installed on the Z module mounting plate (14) by a threaded connection. The Z module mounting plate (14) is fixed to the X module slider (3-1) by a threaded connection. The X module slider (3-1) is located above the X linear module (3) and is provided with threaded holes to connect with other modules.

6. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The Y-rotation module (5) is installed on the connector b (11) by a threaded connection. The connector b (11) is fixed to the base by the connecting angle bracket a (12). The motor mounting base (7) is installed on the fastening plate (5-6) by a threaded connection. The motor (9) is installed on the motor mounting base (7) and connected to the transmission shaft a (5-3) by the coupling (8). The workpiece fixture (6) is installed on the Y-rotation slider (5-7).

7. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The workpiece fixture (6) includes a fixture mounting base (6-1), a workpiece placement platform a (6-2), a workpiece placement platform b (6-3), and a workpiece placement platform c (6-4); and the workpiece placement platforms a (6-2), b (6-3), and c (6-4) have protrusions that restrict the movement of the workpiece, and are mounted on the grooves of the fixture mounting base (6-1) by clearance fit.

8. The workpiece surface contamination QR code detection device according to claim 7, characterized in that, The fixture mounting base (6-1) is a rectangular part with a certain thickness. It has mounting holes at the four corners for mounting above the Y-rotating slider (5-7), and a rectangular hole of a certain width in the center for mounting the workpiece placement table. The workpiece placement platform a (6-2) has a step at the tail that mates with the fixture mounting base (6-1), and has two arc-shaped protrusions and a round hole at the front. The workpiece placement platform b (6-3) has a step at the tail that mates with the fixture mounting base (6-1), and has two arc-shaped protrusions and a round hole in the middle at the front. The workpiece placement platform c (6-4) has a step at the tail that mates with the fixture mounting base (6-1), and has two opposing square protrusions at the front, and arcs on the left and right sides at the bottom.

9. The workpiece surface contamination QR code detection device according to claim 1, characterized in that, The vision module includes an industrial camera (25) and a lens (26) mounted on the industrial camera (25). The industrial camera (25) is mounted on the camera mounting block (24) by a threaded connection. The camera mounting block (24) is connected to the adapter (22) and the horizontal plate (23). The adapter (22) is fixed to the movable slider a (21-1) by bolts. The movable slider a (21-1) is fixed to the rack (20). The rack (20) is mounted on the mounting plate (19). The mounting plate (19) is mounted on the Z module slider (4-1) by a threaded connection. The Z module slider (4-1) is located above the Z linear module (4) and is provided with threaded holes for connection with other modules. The movable slider b (21-2) is mounted on the rack (20), the light source fixing part a (27) is mounted on the movable slider b (21-2), the two light source fixing parts b (28) are pressed and fixed on the light source fixing part a (27) by tightening the nut (30), and the ring light source (29) is fixedly mounted on the two light source fixing parts b (28) by thread.

10. The workpiece surface contamination QR code detection device according to claim 9, characterized in that, The movable slider b (21-2) and movable slider a (21-1) are mounted on the same rack (20), with movable slider b (21-2) located below movable slider a (21-1).

Images