Welding strength detection device capable of inhibiting flying shooting of separated object
By introducing a liquid flow and drip cage structure into the welding strength testing device, the problem of flying debris when the welded sample breaks is solved, and a safe and efficient testing process is achieved.
Patent Information
- Application Number
- CN202520046562.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing welding strength testing devices cause unpredictable ejection of debris when welded samples break, posing a safety hazard.
Design a detection device that includes a housing and a flowing liquid. Use a clamping assembly to clamp the welded sample and lower it into the flowing liquid. Use the resistance of the flowing liquid to suppress the ejection of debris. Use a drain cage to collect the ejected debris to improve safety.
It effectively suppressed projectiles when welded samples fractured, improved the safety of the inspection operation, prevented foreign objects from scattering everywhere, and facilitated observation of the fracture site.
Smart Images
Figure CN223897198U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of welding inspection devices, and specifically relates to a welding strength inspection device that can suppress the ejection of detached objects. Background Technology
[0002] In the field of steel structures, steel structure projects are often large-scale, while the available steel length in actual production is limited, frequently failing to meet construction length requirements. According to relevant statistics, approximately 30%-40% of steel structural components require butt welding due to insufficient material length. Furthermore, to ensure welding quality meets requirements, steel suppliers are required to provide samples of each batch of steel structural materials. These samples are then welded and subjected to rigorous tensile and / or torsion tests.
[0003] In existing technologies, common welding strength testing devices include two opposing clamping assemblies. One or both clamping assemblies are connected to a horizontally extendable telescopic mechanism. During the test, the two clamping assemblies clamp both ends of the welded sample, and then the telescopic mechanism applies force to move one or both clamping assemblies away from each other. The applied force is monitored in real time until the welded sample breaks, and the applied force at the point of breakage is obtained. This allows for the determination of whether the welding requirements have been met.
[0004] However, in existing testing techniques, when a welded component breaks, the sudden release of force causes detached parts, such as welded samples and / or weld tissue, to fly out in various directions erratically, posing a significant safety hazard to the testing operation. Utility Model Content
[0005] This invention provides a welding strength testing device that can suppress the ejection of detached material, effectively preventing the irregular ejection of detached material from the fractured welded sample or / and weld structure into various directions, thus preventing damage to external objects and improving operational safety.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A welding strength testing device capable of suppressing ejected material includes a box with an open top and a drain cage. The box contains a flowing liquid, and a top frame is located on the top of the box. The top frame is connected to a lifting frame via a telescopic rod, which lowers the lifting frame into the flowing liquid within the box. Clamping assemblies are located on both sides of the lifting frame. A sliding rod is slidably inserted through at least one side of the lifting frame. One end of the sliding rod is connected to a clamping assembly, and the other end is connected to a second telescopic rod. The second telescopic rod is connected to the side wall of the lifting frame via a pressure sensor, allowing the two clamping assemblies to move relative to each other. The drain cage is located at the bottom of the lifting frame and below the two clamping assemblies, and is used to catch ejected material in the flowing liquid.
[0008] Furthermore, the chuck assembly includes an adapter block, which is connected to a clamping seat. The front end of the clamping seat is provided with a clearance groove. A bidirectional screw and a guide rod are rotatably disposed in the clearance groove. One end of the bidirectional screw is connected to a motor located on the outer wall of the clamping seat. Both sides of the bidirectional screw and the guide rod are fitted with chucks located in the clearance groove.
[0009] One of the adapter blocks is connected to the end of the slide bar, and the other adapter block is connected to the side wall of the lifting frame.
[0010] Furthermore, the clamp is rotatably embedded in the front end of the adapter block, and a worm gear reducer motor is provided inside the clamp. The output shaft of the worm gear reducer motor is connected to the adapter block through a torque sensor.
[0011] Furthermore, the clamp is provided with a mounting cavity, and the mounting cavity has a shaft cavity on the side wall near the adapter block. The worm gear reducer motor is located in the mounting cavity, and the torque sensor is located in the shaft cavity.
[0012] Furthermore, a force-bearing ring is provided on the outer wall of the clamp, and the force-bearing ring is rotatably disposed within the adapter block.
[0013] Furthermore, the lifting frame, sliding rod, and clamp are all U-shaped structures.
[0014] Furthermore, a camera is installed at the top of the lifting frame, and the camera is equipped with a protective lens.
[0015] Furthermore, the fluid used is either clean water or insulating oil.
[0016] Furthermore, the lifting frame is equipped with a top cover, which can be driven to close the top of the tank when the lifting frame is lowered into the liquid.
[0017] Furthermore, the enclosure is made of transparent plexiglass material.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] After clamping the welding sample at both ends using two clamping assemblies, the welding sample is lowered into the flowing liquid to a preset depth using a telescopic rod one. The two clamping assemblies are then moved away from each other using a telescopic rod two until the welding sample is broken. The maximum applied force is detected by a pressure sensor and used as the output. The resistance of the flowing liquid effectively suppresses the ejection of debris, and the enclosure further restricts the ejection of foreign objects, improving the safety of the testing operation. Debris ejected in the flowing liquid falls into the drain cage. When the lifting frame is raised, the debris is lifted out along with the liquid, which flows back into the enclosure, facilitating the retrieval of debris and allowing for observation of the weld at the fracture point. In addition, conducting the weld strength test in the flowing liquid also prevents metal powder generated when the weld suddenly breaks from being ejected into the air and inhaled by the lungs, causing irreversible damage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1;
[0021] Figure 2 for Figure 1 Enlarged view of point A in the image;
[0022] Figure 3 This is a partial structural diagram of Example 2;
[0023] Figure 4 This is a partial structural diagram of Example 3;
[0024] In the diagram: 1. Housing; 2. Top cover; 3. Telescopic rod one; 4. Top frame; 5. Drainage cage; 6. Lifting frame; 7. Slide rod; 8. Telescopic rod two; 9. Pressure sensor; 10. Adapter block; 11. Clamp; 12. Motor one; 13. Bidirectional screw; 14. Guide rod; 15. Clamp; 16. Clearance groove; 17. Camera; 18. Protective lens; 19. Shaft cavity; 20. Worm gear reducer motor; 21. Mounting cavity; 22. Force ring; 23. Torque sensor. Detailed Implementation
[0025] To better understand the technical content of this utility model, specific embodiments are provided below, and the utility model will be further described in conjunction with the accompanying drawings.
[0026] Example 1
[0027] See Figures 1 to 2This utility model provides a welding strength testing device that can suppress the ejection of detached material. It includes a box 1 with an open top and a draining cage 5. The box 1 contains a preset amount of liquid. A top frame 4 is fixed on the top of the box 1. A telescopic rod 3 is fixed on the top of the top frame 4. The telescopic end of the telescopic rod 3 is connected to a lifting frame 6. The telescopic rod 3 can be an electric push rod or a hydraulic telescopic cylinder. The telescopic rod 3 can drive the lifting frame 6 to descend into the liquid in the box 1 or drive the lifting frame 6 to rise above the box 1. The lifting frame 6 has clamping assemblies on both sides. The two clamping assemblies are arranged opposite each other. A sliding rod 7 is slidably passed through one side of the lifting frame 6. One end of the sliding rod 7 is connected to the clamping assembly. The other end of the sliding rod 7 is fixed with a telescopic rod 8. The telescopic rod 8 is a hydraulic telescopic cylinder. The telescopic rod 8 is connected to the side wall of the lifting frame 6 through a pressure sensor 9, so that the two clamping assemblies can move away from or closer to each other. The draining cage 5 is fixed at the bottom of the lifting frame 6 and located below the two clamping assemblies. The draining cage 5 is used to catch detached material ejected into the liquid.
[0028] When testing is required, two welded samples are butt-welded together. Two clamping assemblies are then used to clamp the two ends of each sample. Telescopic rod 3 lowers the sample into the flowing liquid to a predetermined depth. Telescopic rod 8 drives slide rod 7 to slide on the side wall of lifting frame 6. Slide rod 7 moves the clamping assembly away from the other clamping assembly, causing the two clamping assemblies to move relatively away from each other. This applies axial tension to the welded sample until it breaks. Since telescopic rod 8 is connected to the side wall of lifting frame 6 via pressure sensor 9, pressure sensor 9 can detect… The maximum value of the applied force is used as the output. When the welded sample is broken, the resistance in the liquid is large and the resistance increases with speed. Therefore, the resistance of the liquid can effectively suppress the ejection of the detached object. Furthermore, the limitation of the box 1 can prevent foreign objects from flying around, thus improving the safety of the inspection operation. The detached object that flies in the liquid will fall into the drain cage 5. When the lifting frame 6 is lifted, the lifting frame 6 can lift the drain cage 5 together. The drain cage 5 can lift the detached object out of the box 1, which is convenient for retrieving the detached object in the liquid and for observing the welding condition at the fracture point.
[0029] Preferably, the chuck assembly includes an adapter block 10, which is fixedly connected to a clamping seat 11. The front end of the clamping seat 11 is provided with a clearance groove 16. A bidirectional screw 13 and a guide rod 14 are rotatably provided in the clearance groove 16. Both ends of the bidirectional screw 13 and the guide rod 14 are rotatably connected to the opposite sidewalls of the clearance groove 16. One end of the bidirectional screw 13 is connected to a motor 12 fixedly mounted on the outer wall of the clamping seat 11. The motor 12 can also be a worm gear type geared motor, which can achieve a self-locking effect when the machine stops, which is beneficial to improving the clamping effect on the welding sample. Both sides of the bidirectional screw 13 and the guide rod 14 are fitted with chucks 15 located in the clearance groove 16. The bidirectional screw 13 is threadedly connected to the chucks 15. Multiple protruding teeth are provided on the opposite sides of the two chucks 15 to improve the clamping force on the welding sample.
[0030] One adapter block 10 is fixedly connected to the end of the slide bar 7, and the other adapter block 10 is fixedly connected to the side wall of the lifting frame 6;
[0031] After one end of the welding sample is placed into the chuck assembly, the motor 12 drives the bidirectional screw 13 to rotate in the clearance groove 16. Under the action of the guide rod 14, the bidirectional screw 13 drives the two chucks 15 on the same side to move closer to each other to clamp the welding sample. The cooperation between the guide rod 14 and the bidirectional screw 13 can improve the overall structural strength of the chuck 15.
[0032] Preferably, the lifting frame 6, the slide bar 7, and the clamp 11 are all U-shaped structures.
[0033] Preferably, the liquid used is clean water or insulating oil. Using clean water can help reduce costs, while using insulating oil can provide greater resistance, effectively suppressing flying foreign objects. Furthermore, electrical components entering the liquid do not require special waterproofing treatment, which helps reduce the procurement cost of electrical components.
[0034] Preferably, a top cover 2 is fixedly provided on the lifting frame 6. When the lifting frame 6 is lowered into the liquid, it can drive the top cover 2 to close on the top of the box body 1, which can prevent foreign objects from flying out from the top of the box body 1.
[0035] Preferably, the enclosure 1 is made of transparent plexiglass material, which facilitates observation of the connection and breakage detection process from outside the enclosure.
[0036] Example 2
[0037] See Figure 3 The difference from Example 1 is as follows:
[0038] Preferably, the clamp 11 is rotatably embedded in the front end of the adapter block 10. A worm gear reducer motor 20 is fixedly installed inside the clamp 11. The output shaft of the worm gear reducer motor 20 is connected to the adapter block 10 through a torque sensor 23. The worm gear reducer motor 20 can provide a high torque force, and the output torque force is detected by the torque sensor 23. After the two ends of the welding sample are clamped by the clamp assembly, the worm gear reducer motor 20 can drive the clamp 11 to rotate on the adapter block 10 through the torque sensor 23 until the welding sample is twisted off. During this process, the torque sensor 23 can detect the maximum output torque force as the output, so that this utility model can have both tensile and torsional detection functions, and has multiple functions.
[0039] In addition, since the clamp 11 can rotate on the adapter block 10, two samples can be clamped on the clamp assemblies on both sides for clamping and welding. When one side is welded, the worm gear reducer motors 20 on both sides are controlled to rotate 90° in the same direction to synchronously rotate the welding sample to the next side for welding until all four sides are welded. After welding, no disassembly is required for inspection, and it has a welding clamping function.
[0040] It should be noted that during the torsion test, the output directions of the two worm gear reducers 20 on both sides should be opposite in order to achieve the purpose of torsion.
[0041] Preferably, the clamp 11 has a mounting cavity 21, and the mounting cavity 21 has a shaft cavity 19 on the side wall near the adapter block 10. The worm gear reducer motor 20 is fixedly installed in the mounting cavity 21, and the torque sensor 23 is located in the shaft cavity 19.
[0042] Preferably, a force-bearing ring 22 is fixedly provided on the outer wall of the clamp 11. The force-bearing ring 22 is rotatably disposed inside the adapter block 10, which can prevent the clamp 11 from being pulled out from the adapter block 10 and is beneficial to improving the structural strength of the clamp 11 and the adapter block 10 in the tensile direction.
[0043] Example 3
[0044] See Figure 4 The difference from Embodiment 1 and Embodiment 2 is as follows:
[0045] Preferably, a camera 17 is provided at the top inside the lifting frame 6 to film the test process, so that the test personnel can easily observe the test breakage. The camera 17 is provided with a protective lens 18 to prevent flying foreign objects from damaging the camera 17.
[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A welding strength testing device capable of suppressing the ejection of detached material, characterized in that: The device includes a box with an opening at the top and a drain cage. The box contains a liquid, and the top of the box has a top frame. The top frame is connected to a lifting frame via a telescopic rod. The telescopic rod can lower the lifting frame into the liquid inside the box. The lifting frame has clamp assemblies on both sides. At least one side of the lifting frame has a sliding rod that slides through it. One end of the sliding rod is connected to the clamp assembly, and the other end has a telescopic rod. The telescopic rod is connected to the side wall of the lifting frame via a pressure sensor, allowing the two clamp assemblies to move relative to each other or closer together. The drain cage is located at the bottom of the lifting frame and below the two clamp assemblies. The drain cage is used to catch any material ejected into the liquid.
2. The welding strength testing device according to claim 1, characterized in that: The chuck assembly includes an adapter block connected to a clamping seat. The front end of the clamping seat is provided with a clearance groove. A bidirectional screw and a guide rod are rotatably disposed in the clearance groove. One end of the bidirectional screw is connected to a motor located on the outer wall of the clamping seat. Both sides of the bidirectional screw and the guide rod are fitted with chucks located in the clearance groove. One of the adapter blocks is connected to the end of the slide bar, and the other adapter block is connected to the side wall of the lifting frame.
3. The welding strength testing device according to claim 2, characterized in that: The clamp is rotatably embedded in the front end of the adapter block. The clamp is equipped with a worm gear reducer motor. The output shaft of the worm gear reducer motor is connected to the adapter block through a torque sensor.
4. The welding strength testing device according to claim 3, characterized in that: The clamp is provided with a mounting cavity, and the mounting cavity has a shaft cavity on the side wall near the adapter block. The worm gear reducer motor is located in the mounting cavity, and the torque sensor is located in the shaft cavity.
5. A welding strength testing device capable of suppressing the ejection of detached material according to claim 4, characterized in that: The clamp is provided with a force-bearing ring on its outer wall, and the force-bearing ring is rotatably located inside the adapter block.
6. The welding strength testing device according to claim 5, characterized in that: The lifting frame, slide bar, and clamp are all U-shaped structures.
7. A welding strength testing device capable of suppressing the ejection of detached material according to any one of claims 1 to 6, characterized in that: A camera is installed at the top of the lifting frame, and the camera is equipped with a protective lens.
8. A welding strength testing device capable of suppressing the ejection of detached material according to any one of claims 1 to 6, characterized in that: The fluid used is either clean water or insulating oil.
9. A welding strength testing device capable of suppressing the ejection of detached material according to any one of claims 1 to 6, characterized in that: The lifting frame is equipped with a top cover. When the lifting frame is lowered into the liquid, it can drive the top cover to close on the top of the tank.
10. A welding strength testing device capable of suppressing the ejection of detached material according to any one of claims 1 to 6, characterized in that: The enclosure is made of transparent acrylic glass.