A metal weld visual inspection instrument

Abstract

The utility model relates to machine vision and industrial automation field discloses a kind of metal weld visual inspection instruments, including base, the base both ends are fixedly connected with shell, the shell inside is fixedly connected with electric push rod, the shell inside center is rotatably connected with shaft, the shaft outside is fixedly connected with rotating lever, the rotating lever both ends are rotatably connected with linkage rod, the linkage rod is rotatably connected with long rod away from the shaft one end, the long rod top is fixedly connected with two support columns, the support column outside is fixedly connected with fixed block, the fixed block outside is fixedly connected with clamp.The utility model in the present application, by setting up the clamping assembly of symmetrical distribution, utilize electric push rod to drive pull rod, long rod, linkage rod and rotating lever collaborative motion, make clamp can steady clamping weldment, effectively avoid the detection effect problem of poor caused by weldment shaking in detection process, significantly improve the stability and reliability of detection process.

Description

Technical Field

[0001] This utility model relates to the field of machine vision and industrial automation, and in particular to a visual inspection instrument for metal welds. Background Technology

[0002] In industrial production, welding is a key process for metal joining, and its quality directly affects the safety and reliability of products. However, traditional manual inspection suffers from low efficiency, strong subjectivity, and difficulty in meeting high-precision requirements. Therefore, visual inspection instruments for metal welds have emerged. These instruments are widely used in automotive manufacturing, energy and pipeline industries, aerospace, and other scenarios with stringent welding quality requirements.

[0003] The structure of a metal weld visual inspection instrument mainly consists of an optical imaging module, an image processing unit, and a data feedback component. Its primary function is to capture weld details through optical imaging, automatically identify defects such as cracks, porosity, and incomplete penetration through algorithmic processing, assess weld formation quality, and provide real-time feedback to the production line. This helps optimize welding parameters, improve inspection efficiency and accuracy, reduce labor costs, and ensure product safety.

[0004] Currently available metal weld visual inspection instruments suffer from poor inspection results due to the shaking of the welded parts, and external light sources also significantly affect the accuracy of the equipment in inspecting welds. Therefore, a metal weld visual inspection instrument is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a visual inspection instrument for metal welds, which aims to improve the problems of weld vibration and the influence of external light sources on the inspection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a visual inspection instrument for metal welds, comprising a base, with a housing fixedly connected to both ends of the base, an electric push rod fixedly connected inside the housing, a rotating shaft rotatably connected to the center inside the housing, a rotating rod fixedly connected to the outside of the rotating shaft, a linkage rod rotatably connected to both ends of the rotating rod, a long rod rotatably connected to the end of the linkage rod away from the rotating rod, two support columns fixedly connected to the top of the long rod, a fixing block fixedly connected to the outside of the support columns, a clamp fixedly connected to the outside of the fixing block, and multiple long slots formed on the top of the housing.

[0007] As a further description of the above technical solution:

[0008] The base is fixedly connected to a base plate, and a bracket is rotatably connected to the top of the base plate. A robotic arm is rotatably connected inside the bracket. A robotic arm is rotatably connected to the end of the robotic arm away from the bracket. A robotic arm is rotatably connected to the end of the robotic arm away from the robotic arm. A light shield is fixedly connected to the outside of the robotic arm. A detection head is fixedly connected inside the light shield.

[0009] As a further description of the above technical solution:

[0010] The light shield has a circular groove inside, and a light-blocking ring is slidably connected to the inner wall of the groove. A lock shell is fixedly connected to the bottom of the light shield, and a stop block is slidably connected inside the lock shell. A spring is fixedly connected to one side of the stop block, and a locking tongue is fixedly connected to the other side of the stop block.

[0011] As a further description of the above technical solution:

[0012] The output end of the electric push rod is fixedly connected to a pull rod, and the end of the pull rod away from the electric push rod is fixedly connected to the outside of one of the long rods. The support column is slidably connected to the inner wall of the long groove.

[0013] As a further description of the above technical solution:

[0014] The top of the light-blocking ring abuts against the inner wall of the circular groove.

[0015] As a further description of the above technical solution:

[0016] The end of the spring away from the stop block is fixedly connected to the inside of the lock housing, and the latch abuts against the bottom of the light-blocking ring.

[0017] As a further description of the above technical solution:

[0018] The bolt passes through the lock housing.

[0019] As a further description of the above technical solution:

[0020] The base plate is located in the middle of the base, and the two outer shells are symmetrically distributed.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting symmetrically distributed clamping components, the electric push rod drives the pull rod, long rod, linkage rod and rotating rod to move in coordination, so that the clamp can stably clamp the weldment, effectively avoiding the problem of poor detection effect caused by the wobbling of the weldment during the detection process, and significantly improving the stability and reliability of the detection process.

[0023] 2. In this utility model, the equipment is equipped with a light shield, a light blocking ring and a corresponding locking structure. The light blocking ring can be flexibly adjusted in position within the circular groove and fixed by a locking tongue, which can effectively block interference from external light sources. Together with the light shield, it forms a stable internal detection environment, reducing the influence of external light on the detection head and ensuring that the detection head works under stable light conditions, thus greatly improving the accuracy of weld detection. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a visual inspection instrument for metal welds proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of an electric push rod for a visual inspection instrument for metal welds proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the circular groove structure of a visual inspection instrument for metal welds proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the locking tongue of a visual inspection instrument for metal welds proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Outer shell; 3. Electric push rod; 4. Long rod; 5. Pull rod; 6. Linkage rod; 7. Rotating rod; 8. Rotating shaft; 9. Support column; 10. Fixing block; 11. Clamp; 12. Long groove; 13. Base plate; 14. Bracket; 15. Robotic arm one; 16. Robotic arm two; 17. Robotic arm three; 18. Light shield; 19. Detection head; 20. Circular groove; 21. Light blocking ring; 22. Lock shell; 23. Lock tongue; 24. Abutment block; 25. Spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-2This utility model provides an embodiment of a metal weld visual inspection instrument, comprising a base 1 for placing the weldment to be inspected, a housing 2 fixedly connected to both ends of the base 1, the housing 2 mainly for holding a clamping assembly, an electric push rod 3 fixedly connected inside the housing 2, the electric push rod 3 being the power source for the entire clamping assembly, a rotating shaft 8 rotatably connected to the center inside the housing 2, a rotating rod 7 fixedly connected to the outside of the rotating shaft 8, a linkage rod 6 rotatably connected to both ends of the rotating rod 7, a long rod 4 rotatably connected to the end of the linkage rod 6 away from the rotating rod 7, two support columns 9 fixedly connected to the top of the long rod 4, and a fixing block 10 fixedly connected to the outside of the support columns 9, and a fixing block 10 fixedly connected to the outside of the fixing block 10. The device includes a clamp 11 and multiple long slots 12 on the top of the outer casing 2. A pull rod 5 is fixedly connected to the output end of the electric push rod 3. The end of the pull rod 5 away from the electric push rod 3 is fixedly connected to the outside of one of the long rods 4. The support column 9 is slidably connected to the inner wall of the long slot 12. After the electric push rod 3 is started, it will drive one of the long rods 4 to move through the pull rod 5. The long rod 4 drives the linkage rod 6 and the rotating rod 7 to rotate, so that the opposite long rod 4 also begins to move, thereby driving the support column 9 and the fixing block 10 to move. The clamp 11 clamps the weldment. The base plate 13 is located in the middle of the base 1, which facilitates the detection head 19 to perform detection. The two outer casings 2 are symmetrically distributed, making the clamping assembly clamp more stably.

[0032] Reference Figures 2-3 The base 1 is externally fixedly connected to a base plate 13, which enhances the stability of the equipment during placement. A bracket 14 is rotatably connected to the top of the base plate 13, forming a stable support structure. A robotic arm 15 is rotatably connected inside the bracket 14, allowing the robotic arm 15 to flexibly adjust its horizontal angle. A robotic arm 16 is rotatably connected to the end of the robotic arm 15 away from the bracket 14. A robotic arm 17 is rotatably connected to the end of the robotic arm 16 away from the robotic arm 15. This rotating joint can extend the working radius of the overall robotic arm. A light shield 18 is externally fixedly connected to the robotic arm 17. The light shield 18 is firmly attached to the robotic arm 17 and is not easy to loosen. A detection head 19 is fixedly connected inside the light shield 18. The detection head 19 is fixed at the center of the light shield 18 to ensure accurate detection angle.

[0033] Reference Figures 3-4The light shield 18 has a circular groove 20 inside. The inner wall of the circular groove 20 is treated to reduce the frictional resistance when the light-blocking ring 21 slides. The light-blocking ring 21 is slidably connected to the inner wall of the circular groove 20. The outer circumference of the light-blocking ring 21 fits tightly with the inner wall of the circular groove 20, ensuring smooth sliding. A lock shell 22 is fixedly connected to the bottom of the light shield 18. The lock shell 22 has high structural strength. A stop block 24 is slidably connected inside the lock shell 22. The two sides of the stop block 24 are adapted to the sliding grooves on the inner wall of the lock shell 22. A spring 25 is fixedly connected to one side of the stop block 24. When the spring 25 is in a compressed state, it can provide support for the stop block 24. 4. Provides continuous thrust; the other side of the stop block 24 is fixedly connected to the latch 23, which moves synchronously; the top of the light-blocking ring 21 abuts against the inner wall of the circular groove 20, which can limit the maximum distance of the light-blocking ring 21 moving downward; the end of the spring 25 away from the stop block 24 is fixedly connected to the inside of the lock housing 22, and is fixed by a snap-fit ​​structure to prevent the spring 25 from falling off; the latch 23 abuts against the bottom of the light-blocking ring 21, and the light-blocking ring 21 can be fixed at a specific height by the support of the latch 23; the latch 23 penetrates the lock housing 22, and the gap of its penetration part is small, which avoids the latch 23 from shaking during movement.

[0034] Working principle: The workpiece to be inspected is placed on the base 1. The electric push rod 3 inside the outer shell 2 is activated, which drives the long rod 4 to move through the pull rod 5. The long rod 4 drives the linkage rod 6 and the rotating rod 7 outside the rotating shaft 8 to rotate, so that the opposite long rod 4 moves synchronously. The support column 9 slides along the long groove 12, which drives the fixing block 10 and the clamp 11 to clamp the workpiece. The two symmetrical external clamping components enhance the clamping stability. The base plate 13 outside the base 1 enhances the stability of the equipment. The bracket 14 on its top supports the robotic arm. Robotic arm one 15 and robotic arm two 15 are also supported. 16. The robotic arm 17 adjusts its position by rotating, moving the light shield 18 and the internal detection head 19 to the detection location; pressing the locking tongue 23 compresses the spring 25, causing the locking tongue 23 to leave the lower surface of the light-blocking ring 21. Inside the light shield 18, the light-blocking ring 21 in the circular groove 20 slides smoothly, and finally the top of the light-blocking ring 21 abuts against the inner wall of the circular groove 20 to prevent the light-blocking ring 21 from moving down too much. The locking tongue 23 penetrates the lock shell 22 with a small gap, ensuring that the detection head 19 completes the weld inspection under stable light conditions.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual inspection instrument for metal welds, comprising a base (1), characterized in that: The base (1) is fixedly connected to the two ends of the outer shell (2), the electric push rod (3) is fixedly connected inside the outer shell (2), the rotating shaft (8) is rotatably connected at the center inside the outer shell (2), the rotating rod (7) is fixedly connected outside the rotating shaft (8), the two ends of the rotating rod (7) are rotatably connected to the linkage rod (6), the end of the linkage rod (6) away from the rotating rod (7) is rotatably connected to the long rod (4), the top of the long rod (4) is fixedly connected to two support columns (9), the support columns (9) are fixedly connected to the outside of the fixing block (9), the fixing block (10) is fixedly connected to the outside of the fixing block (10), and the top of the outer shell (2) is provided with multiple long slots (12); The output end of the electric push rod (3) is fixedly connected to a pull rod (5). The end of the pull rod (5) away from the electric push rod (3) is fixedly connected to the outside of one of the long rods (4). The support column (9) is slidably connected to the inner wall of the long groove (12).

2. The visual inspection instrument for metal welds according to claim 1, characterized in that: The base (1) is fixedly connected to the outside of the base plate (13), and the top of the base plate (13) is rotatably connected to the bracket (14). The bracket (14) is rotatably connected to the inside of the bracket (14). The end of the first robotic arm (15) away from the bracket (14) is rotatably connected to the second robotic arm (16). The end of the second robotic arm (16) away from the first robotic arm (15) is rotatably connected to the third robotic arm (17). The third robotic arm (17) is fixedly connected to the outside of the light shield (18). The light shield (18) is fixedly connected to the inside of the detection head (19).

3. The visual inspection instrument for metal welds according to claim 2, characterized in that: The light shield (18) has a circular groove (20) inside. A light-blocking ring (21) is slidably connected to the inner wall of the circular groove (20). A lock shell (22) is fixedly connected to the bottom of the light shield (18). A stop block (24) is slidably connected inside the lock shell (22). A spring (25) is fixedly connected to one side of the stop block (24), and a lock tongue (23) is fixedly connected to the other side of the stop block (24).

4. The visual inspection instrument for metal welds according to claim 3, characterized in that: The top of the light-blocking ring (21) abuts against the inner wall of the circular groove (20).

5. A visual inspection instrument for metal welds according to claim 3, characterized in that: The end of the spring (25) away from the stop block (24) is fixedly connected to the inside of the lock case (22), and the latch (23) abuts against the bottom of the light-blocking ring (21).

6. A visual inspection instrument for metal welds according to claim 3, characterized in that: The latch (23) penetrates the lock housing (22).

7. A visual inspection instrument for metal welds according to claim 2, characterized in that: The base plate (13) is located in the middle of the base (1), and the two outer shells (2) are symmetrically distributed.

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