Welding quality detection device for large three-dimensional welding platform

Abstract

The utility model relates to the technical field of welding quality detection, and discloses a large three-dimensional welding platform welding quality detection device which comprises an operation platform, the rear side of the operation platform is fixedly connected with a mounting plate, the top of the mounting plate is provided with a mechanical arm, and the output end of the mechanical arm is fixedly connected with a welding head. A protection mechanism used for protection is arranged at the bottom of the mechanical arm, and a quick release structure used for quick release is arranged in the protection mechanism. The quick detaching mechanism comprises a mounting frame, a driving assembly used for providing power is arranged on the rear side of the mounting frame, and two first fixing shafts are fixedly connected to the front side of the driving assembly. According to the welding quality detection device, when the detection head needs to be replaced, the dismounting action can be rapidly and accurately completed, the replacement efficiency of the detection head is greatly improved, the equipment maintenance time is shortened, and the use flexibility and convenience of the whole welding quality detection device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding quality detection technical field especially relates to large -scale three -dimensional welding platform welding quality detection device. BACKGROUND

[0002] Welding platform is a kind of basic process equipment in welding operation plays the role of auxiliary and support. It is usually made of high-strength cast iron or steel material, with solid, flat, stable characteristics. Its surface is finely processed, can guarantee higher flatness and smoothness, provides accurate positioning and reliable support for welding parts, ensures the position of welding parts is accurate and faultless when welding, is favorable to improve welding quality and efficiency. The types of welding platform are various, the common ones are fixed type, adjustable type etc. Fixed welding platform is strong in stability, is suitable for the welding of large, heavy welding parts;Adjustable welding platform can flexibly adjust height, angle and other parameters according to the shape, size and welding requirements of welding parts, convenient operation. In addition, it can be equipped with various clamps, positioning devices and accessories, further enhances its functionality, is widely used in welding production links of mechanical manufacturing, automobile, ship and many other industries.

[0003] Detecting welding quality is mainly due to many important reasons. First, welding quality is directly related to the safety and reliability of welding parts, many key equipment such as bridge, pressure vessel, pipeline etc., if there are defects in welding, serious safety accidents will be caused in the use process, threatens life and property safety. Secondly, detection helps to ensure product performance, good welding can make welding parts meet strength, sealing and other performance indicators, ensure its normal use. Welding quality detection is mainly carried out through various methods. Appearance detection is the most basic, directly observes whether there are pores, cracks, undercut and other defects on the surface of weld. Non-destructive testing technology is widely used, such as ultrasonic detection, which uses the propagation characteristics of ultrasonic waves in welding parts to detect internal defects;Radiographic testing, through the imaging of the rays penetrating the welding parts to view the internal situation;Magnetic particle testing is suitable for ferromagnetic materials, which can detect surface and near-surface defects;Penetrant testing is mainly used to detect surface opening defects etc. In addition, there is destructive testing, such as tensile, bending, impact test, which can detect the mechanical properties of welded joints to ensure that it meets the design requirements.

[0004] But the detection head of the existing part of the welding quality detection device, the detection head usually adopts the bolt nut mode to realize the installation and disassembly operation. When installing, the worker first needs to accurately align the mounting hole of the detection head with the corresponding screw hole on the device main body, which needs to spend a certain amount of time and effort to ensure accurate position, and uses the nut to fasten. In this process, due to the close connection of the bolt and nut, it is difficult to complete the installation operation by relying on manpower, and tools such as wrenches must be used to assist in tightening the nut to ensure that the detection head is installed firmly. The entire installation step is extremely cumbersome. When the detection head needs to be disassembled for maintenance, replacement or debugging, the worker still needs to use tools to loosen the nut first, then take out the bolt, and then disassemble the detection head from the device. This series of operations not only consumes time, but also in some relatively narrow or special working environment, the use of tools for operation will be limited by space, further increasing the difficulty and inconvenience of installation and disassembly, seriously affecting the work efficiency and the maintenance convenience of the equipment, therefore, in view of the above shortcomings, the welding quality detection device of large three-dimensional welding platform is proposed to solve the above problems. Practical new type content

[0005] In order to make up for the above shortcomings, the welding quality detection device of large three-dimensional welding platform is provided, which aims at improving the problem that part of the detection head is not convenient for quick installation and disassembly in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The welding quality detection device of large three-dimensional welding platform, including operation platform, the rear side of the operation platform is fixedly connected with the mounting plate, the top of the mounting plate is provided with mechanical arm, the output end of the mechanical arm is fixedly connected with the welding head, the bottom of the mechanical arm is provided with the protection mechanism for protection, the inside of the protection mechanism is provided with the quick release structure for quick release;

[0008] The quick release mechanism includes an installation frame, a driving assembly for providing power is arranged on the rear side of the installation frame, two fixed shafts one are fixedly connected on the front side of the driving assembly, rotating rods are rotatably connected outside the two fixed shafts one, fixed shafts two are rotatably connected on the rear side of the two rotating rods, sliding frames are fixedly connected on the bottom of the two fixed shafts two, two positioning rods are fixedly connected in the installation frame, clamping plates are fixedly connected on the far side of the two sliding frames, a butt joint plate is slidably connected in the installation frame, clamping grooves are formed on the left and right sides of the butt joint plate, and detection heads are fixedly connected on the bottom of the butt joint plate.

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

[0010] The protection mechanism includes a protection shell, the bottom of the protection shell is fixedly connected to the top of the mechanical arm, the rear side of the protection shell is provided with a power assembly for providing power, the bottom of the mounting frame is fixedly connected with a protection frame, the left and right sides of the protection frame are fixedly connected with limiting frames, the left and right sides of the inside of the protection shell are provided with limiting grooves, and the bottom rear side of the protection shell is fixedly connected with a protection plate.

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

[0012] The driving assembly includes a second air cylinder, the front side of the second air cylinder is mounted on the rear side of the mounting frame, the output end of the second air cylinder is fixedly connected with a second push rod, the front side of the second push rod is fixedly connected with a sliding rod, and a sliding groove is arranged in the inside of the mounting frame.

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

[0014] The power assembly includes a first air cylinder, the front side of the first air cylinder is mounted on the rear side of the protection shell, the output end of the first air cylinder is fixedly connected with a first push rod, and the front side of the first push rod is fixedly connected to the rear side of the protection frame.

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

[0016] The outside of the limiting frame is slidably connected to the inside of the limiting groove, and the bottom of the protection frame is slidably connected to the top of the protection plate.

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

[0018] The outside of the limiting frame is slidably connected to the inside of the limiting groove, and the bottom of the protection frame is slidably connected to the top of the protection plate.

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

[0020] The outside of the limiting frame is slidably connected to the inside of the limiting groove, and the bottom of the protection frame is slidably connected to the top of the protection plate.

[0021] As a further description of the above technical scheme:

[0022] The inside of the sliding frame is slidably connected to the outside of the positioning rod, and the outside of the clamping plate is slidably connected to the inside of the clamping groove.

[0023] As a further description of the above technical scheme:

[0024] The right side of the mounting plate is fixedly connected with a display controller, and the bottom of the operation platform is fixedly connected with a support column.

[0025] The utility model has the advantages of the following beneficial effects:

[0026] 1. In the utility model, the push rod two is driven by the cylinder two to make linear motion inside the installation frame, the sliding rod slides in the sliding slot of the installation frame, and the rotating rod rotates around the fixed shaft one, the sliding frame is driven by the fixed shaft two to slide on the positioning rod, and finally the clamping plate and the butt joint plate are separated or clamped in the clamping groove, so that when the detection head needs to be replaced, the disassembly operation can be quickly and accurately completed, and when the installation is carried out, the clamping plate can be simply slid into the clamping groove, the efficiency of replacing the detection head is greatly improved, the equipment maintenance time is reduced, and the use flexibility and convenience of the whole welding quality detection device are improved.

[0027] 2. In the utility model, the protective frame can slide in the protective shell under the drive of the cylinder one, the limiting frame on the left and right sides of the protective frame is matched with the limiting groove in the protective shell, the stability and directionality of the movement of the protective frame are ensured. In the non-detection state, the protective frame can effectively prevent the detection head from being collided, damaged or contaminated, prolong the service life of the detection head, ensure the performance stability of the detection head, reduce the detection error caused by external factors, improve the reliability of the detection result, and improve the stability and durability of the whole welding quality detection device. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A perspective view of the welding quality detection device of the large three-dimensional welding platform is provided for the utility model;

[0029] Figure 2 A protective plate structure schematic view of the welding quality detection device of the large three-dimensional welding platform is provided for the utility model;

[0030] Figure 3 A protective frame structure schematic view of the welding quality detection device of the large three-dimensional welding platform is provided for the utility model;

[0031] Figure 4 A butt joint plate structure schematic view of the welding quality detection device of the large three-dimensional welding platform is provided for the utility model.

[0032] LEGEND:

[0033] 1, operation platform;2, mounting plate;3, mechanical arm;4, welding head;5, protective shell;6, cylinder one;7, push rod one;8, protective frame;9, limiting frame;10, limiting groove;11, protective plate;12, installation frame;13, cylinder two;14, push rod two;15, sliding rod;16, sliding slot;17, fixed shaft one;18, rotating rod;19, fixed shaft two;20, sliding frame;21, positioning rod;22, clamping plate;23, butt joint plate;24, clamping groove;25, detection head;26, display controller;27, support column. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] With reference to Figures 1 to 2 The utility model provides an embodiment: large three -dimensional welding platform welding quality detection device, including operation platform 1, operation platform 1 provides stable operation plane for welding and detection work. The rear side of operation platform 1 is fixedly connected with mounting plate 2, and the top of mounting plate 2 is provided with mechanical arm 3, and mounting plate 2 provides the installation basis for mechanical arm 3. The output end of mechanical arm 3 is fixedly connected with welding head 4, and welding head 4 is the execution component for welding operation, and its structure is different according to different welding process. For example, if adopting arc welding process, welding head 4 includes welding torch, wire feeding mechanism, shielding gas nozzle and other parts. The welding torch is used to generate the welding arc, the wire feeding mechanism is responsible for conveying the welding wire to the welding area according to a certain speed and rhythm, and the shielding gas nozzle sprays shielding gas to prevent the welding area from being oxidized. Welding head 4 can accurately reach the welding position along with the movement of mechanical arm 3, and adjust the welding parameters according to the welding process requirements. The bottom of mechanical arm 3 is provided with a protection mechanism for protection, and the inside of the protection mechanism is provided with a quick release structure for quick release.

[0036] With reference to Figures 2 to 4 The quick release mechanism includes mounting frame 12, and the outside of mounting frame 12 is slidably connected in the inside of protection shell 5. The rear side of mounting frame 12 is provided with a driving assembly for providing power, and the driving assembly includes cylinder two 13, and the front side of cylinder two 13 is installed on the rear side of mounting frame 12. The output end of cylinder two 13 is fixedly connected with push rod two 14, and the outside of push rod two 14 is slidably connected in the inside of mounting frame 12. When it is necessary to replace detection head 25, the piston of cylinder two 13 will drive push rod two 14 to make linear motion in the inside of mounting frame 12 after receiving the control signal. The front side of push rod two 14 is fixedly connected with sliding rod 15, and the function of sliding rod 15 is to convert the horizontal motion of push rod two 14 into the rotary motion of rotary rod 18. The inside of mounting frame 12 is provided with sliding groove 16, and sliding groove 16 provides sliding track for sliding rod 15. The outside of sliding rod 15 is slidably connected in the inside of sliding groove 16.

[0037] With reference to Figures 3 to 4The front side of the driving assembly is fixedly connected with two fixed shafts 17, and the outer parts of the two fixed shafts 17 are rotationally connected with rotating rods 18. Under the movement of the sliding rod 15, the rotating rod 18 will rotate around the fixed shaft 17. The rear side of each of the two rotating rods 18 is rotationally connected with a fixed shaft 19. When the rotating rod 18 rotates, the fixed shaft 19 will drive the sliding frame 20 to move in a straight line. The bottom of each of the two fixed shafts 19 is fixedly connected with a sliding frame 20. The inner part of the mounting frame 12 is fixedly connected with two positioning rods 21. The inner part of the sliding frame 20 is slidably connected to the outer part of the positioning rod 21. The far side of each of the two sliding frames 20 is fixedly connected with a clamping plate 22. The positioning rod 21 ensures that the sliding frame 20 can only move in a straight line along the positioning rod 21 during the movement, thereby ensuring the accurate docking and disengagement of the clamping plate 22 and the clamping groove 24. The inner part of the mounting frame 12 is slidably connected with a docking plate 23. The left and right sides of the docking plate 23 are both provided with clamping grooves 24. The clamping grooves 24 are used to cooperate with the clamping plates 22 to fix the docking plate 23 and the detection head 25.

[0038] With reference to Figures 3 to 4 The outer part of the clamping plate 22 is slidably connected to the inner part of the clamping groove 24. The bottom of the docking plate 23 is fixedly connected with a detection head 25. The detection head 25 is a key component for quality detection of the welding position and its type varies according to different detection methods. For example, if ultrasonic detection is adopted, the detection head 25 is an ultrasonic sensor; if visual detection is adopted, the detection head 25 is an industrial camera, etc. The detection head 25 is fixedly connected to the mounting frame 12 through the docking plate 23 and can reach the welding position for detection under the drive of the mechanical arm 3. The detection head 25 has high detection precision and sensitivity and can accurately obtain relevant information of the welding position, such as the shape, size, and defects of the weld, and transmit these information to the display controller 26 for processing and analysis, thereby providing a basis for the evaluation of the welding quality.

[0039] With reference to Figures 1 to 3 The protection mechanism includes a protection shell 5. The bottom of the protection shell 5 is fixedly connected to the top of the mechanical arm 3. The rear side of the protection shell 5 is provided with a power assembly for providing power. The power assembly includes a cylinder 6. The front side of the cylinder 6 is mounted on the rear side of the protection shell 5. The output end of the cylinder 6 is fixedly connected with a push rod 7. When the cylinder 6 receives a control signal, the piston will move in a straight line in the cylinder, thereby driving the push rod 7 to move back and forth. The front side of the push rod 7 is fixedly connected to the rear side of a protection frame 8.

[0040] With reference to Figures 1 to 3The bottom of the mounting frame 12 is fixedly connected with a protective frame 8, and the main function of the protective frame 8 is to protect the detection head 25 in a non-detection state, so as to prevent the detection head 25 from being collided, damaged or contaminated. The outer part of the protective frame 8 is slidably connected to the inner part of the protective shell 5, and the left and right sides of the protective frame 8 are fixedly connected with limiting racks 9. The left and right sides of the inner part of the protective shell 5 are provided with limiting grooves 10, and the outer part of the limiting rack 9 is slidably connected to the inner part of the limiting groove 10. The limiting rack 9 plays a guiding and limiting role in the movement process of the protective frame 8, so as to ensure that the protective frame 8 can only move linearly in the direction specified by the limiting groove 10, prevent the protective frame 8 from deviating or shaking, and thus ensure the position stability and safety of the detection head 25 in the protective frame 8. The bottom rear side of the protective shell 5 is fixedly connected with a protective plate 11, and the bottom of the protective frame 8 is slidably connected to the top of the protective plate 11. The right side of the mounting plate 2 is fixedly connected with a display controller 26, which is the control center and data processing center of the entire welding quality detection device. The display controller 26 is connected with the mechanical arm 3, the cylinder one 6, the cylinder two 13, the detection head 25 and other equipment through a data line, can receive the instructions of the operator, and control the operation of each equipment according to the preset program. At the same time, the display controller 26 can also receive the welding data collected by the detection head 25, and process, analyze and display the data. The operator can intuitively understand the running state, detection result and other information of the equipment, and make corresponding parameter setting and operation adjustment. The bottom corners of the operation platform 1 are fixedly connected with support columns 27.

[0041] Working principle: when using the large three-dimensional welding platform welding quality detection device, the spatial position of the welding head 4 can be adjusted by driving the mechanical arm 3, so that the effective welding of the welding part can be realized first. After the welding is completed, the cylinder one 6 is started, the push rod one 7 and the protective frame 8 are driven by the cylinder one 6 to displace, so that the limiting rack 9 slides in the inner part of the limiting groove 10, and then the protective frame 8 and the mounting frame 12 slide out from the top of the protective plate 11, so that the detection head 25 is exposed, and then the effective detection of the welding part can be realized by driving the mechanical arm 3 first. After the detection is completed, the protective frame 8 and the mounting frame 12 are reset by starting the cylinder one 6, so that the protection of the detection head 25 can be realized.

[0042] When the detection head 25 needs to be replaced, the air cylinder two 13 can be started to drive the push rod two 14 to displace, and then the sliding rod 15 can slide in the sliding groove 16, at this time the rotating rod 18 will rotate, and then the sliding frame 20 can slide on the top of the positioning rod 21 by the fixed shaft two 19 and the fixed shaft one 17, and then the clamping plate 22 can displace, at this time the clamping plate 22 will be separated from the inside of the clamping groove 24, at this time the butt joint plate 23 and the detection head 25 can be removed, so that the disassembly of the detection head 25 can be completed, and when installing, the air cylinder two 13 is only needed to be started to make the clamping plate 22 slide into the inside of the clamping groove 24, so that the installation of the detection head 25 can be realized.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A large three-dimensional welding platform welding quality detection device, comprising an operation platform (1), characterized in that: The rear side of the operation platform (1) is fixedly connected with a mounting plate (2), the top of the mounting plate (2) is provided with a mechanical arm (3), the output end of the mechanical arm (3) is fixedly connected with a welding head (4), and the bottom of the mechanical arm (3) is provided with a protection mechanism for protection. The quick release mechanism includes a mounting frame (12), the rear side of the mounting frame (12) is provided with a driving assembly for providing power, the front side of the driving assembly is fixedly connected with two fixed shafts (17), the outer sides of the two fixed shafts (17) are rotatably connected with rotating rods (18), the rear sides of the two rotating rods (18) are rotatably connected with fixed shafts (19), the bottoms of the two fixed shafts (19) are fixedly connected with sliding frames (20), the inside of the mounting frame (12) is fixedly connected with two positioning rods (21), the far sides of the two sliding frames (20) are fixedly connected with clamping plates (22), the inside of the mounting frame (12) is slidably connected with a butt joint plate (23), the left and right sides of the butt joint plate (23) are provided with clamping grooves (24), and the bottoms of the butt joint plate (23) are fixedly connected with detection heads (25).

2. The large-scale three-dimensional welding platform welding quality detection device according to claim 1, characterized in that: The protection mechanism includes a protection shell (5), the bottom of the protection shell (5) is fixedly connected to the top of the mechanical arm (3), the rear side of the protection shell (5) is provided with a power assembly for providing power, the bottom of the mounting frame (12) is fixedly connected with a protection frame (8), the left and right sides of the protection frame (8) are fixedly connected with limiting frames (9), the left and right sides of the inside of the protection shell (5) are provided with limiting grooves (10), and the bottom rear side of the protection shell (5) is fixedly connected with a protection plate (11).

3. The large-scale three-dimensional welding platform welding quality detection device according to claim 1, characterized in that: The driving assembly includes a cylinder (13), the front side of the cylinder (13) is mounted on the rear side of the mounting frame (12), the output end of the cylinder (13) is fixedly connected with a push rod (14), and the front side of the push rod (14) is fixedly connected with a sliding rod (15).

4. The large-scale three-dimensional welding platform welding quality detection device according to claim 2, characterized in that: The power assembly includes a cylinder (6), the front side of the cylinder (6) is mounted on the rear side of the protection shell (5), the output end of the cylinder (6) is fixedly connected with a push rod (7), and the front side of the push rod (7) is fixedly connected to the rear side of the protection frame (8).

5. The apparatus for detecting welding quality of large three-dimensional welding platform according to claim 2, characterized in that: The outside of the limiting frame (9) is slidably connected in the inside of the limiting groove (10), and the bottom of the protection frame (8) is slidably connected to the top of the protection plate (11).

6. The apparatus for detecting welding quality of large three-dimensional welding platform according to claim 2, characterized in that: The outside of the protection frame (8) is slidably connected in the inside of the protection shell (5).

7. The apparatus for detecting welding quality of large three-dimensional welding platform according to claim 3, characterized in that: The outside of the sliding rod (15) is slidably connected in the inside of the sliding groove (16), and the outside of the push rod (14) is slidably connected in the inside of the mounting frame (12).

8. The apparatus for detecting welding quality of large three-dimensional welding platform according to claim 1, characterized in that: The inside of the sliding frame (20) is slidably connected to the outside of the positioning rod (21), and the outside of the clamping plate (22) is slidably connected to the inside of the clamping groove (24).

9. The apparatus for detecting welding quality of large three-dimensional welding platform according to claim 1, characterized in that: The right side of the mounting plate (2) is fixedly connected with a display controller (26), and the bottom corners of the operation platform (1) are fixedly connected with support columns (27).

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