A portable detection tool for fillet welds

Abstract

The present invention discloses a portable detection tool for fillet welds, including a storage cylinder, on which a rubber plug is inserted, a handle is fixedly connected to the storage cylinder, an extrusion assembly is arranged inside the storage cylinder, a discharge pipe is arranged at the discharge end of the storage cylinder, a sealing bearing is arranged at the connection between the discharge pipe and the storage cylinder, an adjustment assembly is connected to the lower end of the storage cylinder, a detection assembly is connected to the adjustment assembly, a driving box is fixedly connected to the upper end of the storage cylinder, a driving assembly is arranged inside the driving box, and the driving assembly is movably connected to the extrusion assembly. In the present invention, the staff can rotate the rotating rod according to the actual situation of the weld, so that it is convenient for the staff to select different probes according to the actual situation. Then the staff can rotate the fixing screw to fix the angle of the probe, which is convenient for the staff's later flaw detection and further facilitates the work of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic flaw detection for welds. More specifically, the present invention relates to a detection tool for portable fillet welds. Background Art

[0002] Fillet welding refers to the process of vertically connecting two pieces of metal together. The shape of the weld is a beautiful triangle. Depending on the skill of the welder, the weld can have a concave surface, a flat surface or a convex surface. Fillet welds are used when welders connect flange plates to pipes, weld cross-sections of basic structures, and when fastening metals with bolts is not firm enough and prone to wear. After the weld is completed, workers need to detect the weld to ensure that the weld meets the standards. However, in the actual flaw detection process, ultrasonic flaw detectors are widely used. The principle of ultrasonic flaw detectors is generally that in a uniform material, the presence of defects will cause discontinuity of the material. This discontinuity often causes inconsistency in acoustic impedance. According to the reflection theorem, most current portable pulse echo ultrasonic flaw detectors are of the A-scan type. The so-called A-scan display method means that the abscissa of the display is the propagation time or propagation distance of ultrasonic waves in the material being detected.

[0003] In actual situations, since the welds of each workpiece are inconsistent, when workers detect the welds, they often encounter workpieces where it is inconvenient for workers to hold the probe close to the weld. This leads to the probe being unable to reach the weld of the workpiece, thus affecting the detection work of workers. At the same time, before detection, workers also need to prepare a variety of tools, such as grinding the weld and applying coupling agent to the weld. This results in a relatively large amount of preparatory work for workers, thus affecting the work of workers and indirectly reducing the work efficiency of workers.

[0004] Therefore, we propose a detection tool for portable fillet welds to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a detection tool for portable fillet welds to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A detection tool for portable fillet welds, including a storage cylinder, a rubber plug is inserted on the storage cylinder, a handle is fixedly connected to the storage cylinder, and an extrusion assembly is provided inside the storage cylinder;

[0007] The discharge end of the storage cylinder is provided with a discharge pipe, and a sealing bearing is provided at the connection between the discharge pipe and the storage cylinder;

[0008] The lower end of the storage cylinder is connected with an adjusting component, and a detecting component is connected to the adjusting component;

[0009] The upper end of the storage cylinder is fixedly connected with a driving box, a driving component is arranged in the driving box, and the driving component is movably connected with an extrusion component;

[0010] A limiting component is connected to the driving box, a grinding component is arranged on the driving box, and one end of the grinding component is connected with the driving component.

[0011] In this device, the staff can rotate the rotating rod according to the actual situation of the weld seam, so that it is convenient for the staff to select different probes according to the actual situation. Then the staff can rotate the fixing screw to fix the angle of the probe, which is convenient for the staff's later flaw detection and further facilitates the staff's work. The staff can move the adjusting plate in the adjusting block according to the actual situation. At this time, the staff can rotate the limiting screw to conveniently fix the position of the probe, so that it is convenient for the staff to adjust the length of the probe according to the actual situation, which can facilitate the staff's detection work and indirectly improve the work efficiency of the staff.

[0012] In a preferred embodiment, the extrusion component includes a lead screw arranged in the storage cylinder, an extrusion plate is threadedly connected to the lead screw, two limiting rods penetrate through the extrusion plate, and the upper and lower ends of the two limiting rods are respectively fixedly connected to the side wall of the storage cylinder.

[0013] In a preferred embodiment, the adjusting component includes two adjusting blocks fixedly connected to the lower end of the storage cylinder, adjusting plates are inserted into the two adjusting blocks, limiting screws are threadedly connected to the two adjusting blocks, and one ends of the two limiting screws respectively pass through the side walls of the two adjusting blocks and are in contact with the side wall of the adjusting plate.

[0014] In a preferred embodiment, the detecting component includes a rotating rod arranged between the two adjusting plates, damping bearings are arranged at the connection parts of the rotating rod and the two adjusting plates, two telescopic rods are fixedly connected to the side wall of the rotating rod, and probes are fixedly connected to one ends of the two telescopic rods.

[0015] In a preferred embodiment, fixing nuts are fixedly connected to the side walls of the two adjusting plates, fixing screws are threadedly connected to the two fixing nuts, and one ends of the two fixing screws are respectively threadedly connected to the rotating rod.

[0016] In a preferred embodiment, the driving assembly includes a servo motor fixedly connected to the inner top end of the driving box. A rotating shaft is fixedly connected to the driving shaft of the servo motor. A first gear is coaxially and fixedly connected to the side wall of the rotating shaft. A second gear is rotatably connected to the inner bottom of the driving box. The first gear meshes with the second gear.

[0017] In a preferred embodiment, an annular groove is provided on the lead screw. Two stoppers are fixedly connected to the inner side wall of the annular groove. An extension post penetrates through the rotating shaft, and one end of the extension post extends into the lead screw. Two electromagnets are provided in the extension post. A magnetic block is provided on one side of each of the two electromagnets. One end of each of the two magnetic blocks is fixedly connected to an insertion rod. One end of each of the two insertion rods is fixedly connected to an extension block.

[0018] In a preferred embodiment, the limiting assembly includes a receiving ring fixedly connected to the driving box. Two fixing rods are fixedly connected to the driving box. Baffles are sleeved on the two fixing rods.

[0019] In a preferred embodiment, the grinding assembly includes a universal flexible shaft penetrating through the driving box. One end of the universal flexible shaft is fixedly connected to the second gear. The universal flexible shaft is wound around the receiving ring. A rotating seat is sleeved on one end of the universal flexible shaft. A grinding plate is fixedly connected to one end of the universal flexible shaft.

[0020] The technical effects and advantages of the present invention are as follows:

[0021] 1. The staff can rotate the rotating rod according to the actual situation of the weld, so as to conveniently select different probes according to the actual situation. Then the staff can rotate the fixing screw to fix the angle of the probe, thus facilitating the later flaw detection work of the staff and further facilitating the work of the staff.

[0022] 2. The staff can move the adjusting plate in the adjusting block according to the actual situation. At this time, the staff can rotate the limiting screw to conveniently fix the position of the probe, so as to conveniently adjust the length of the probe according to the actual situation, thus facilitating the detection work of the staff and indirectly improving the work efficiency of the staff.

[0023] 3. The staff can start the servo motor through the controller. When the servo motor works, the second gear will rotate accordingly, which can make the grinding plate rotate. When the grinding plate rotates, it is convenient for the staff to clean the impurities on the weld. At the same time, the staff holds the rotating base, which also facilitates the work of the staff, indirectly improving the cleaning work of the staff. At the same time, the universal hose can be wound around the storage ring, further facilitating the staff to store this device, thus facilitating the work of the staff.

[0024] 4. After the grinding is completed, the staff can directly start the electromagnet through the controller, so that the extension block contacts the stop block. Therefore, when the rotating shaft rotates, the lead screw will rotate accordingly, and further the coupling agent in the storage cylinder can be extruded from the discharge pipe, which is convenient for the staff to use the probe to detect the weld, thus facilitating the work of the staff and indirectly improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a schematic structural diagram of the first perspective of the present invention;

[0027] Figure 3 is a schematic structural diagram of the second perspective of the present invention;

[0028] Figure 4 is a schematic diagram of the first partial sectional connection structure of the present invention;

[0029] Figure 5 is a schematic diagram of the first partial connection structure of the present invention;

[0030] Figure 6 is a schematic diagram of the second partial sectional connection structure of the present invention;

[0031] Figure 7 is Figure 6 a schematic diagram of the partial enlarged connection structure at A in

[0032] Figure 8 is a schematic diagram of the connection structure between the rotating shaft and the lead screw of the present invention;

[0033] Figure 9 is a schematic diagram of the second partial connection structure of the present invention.

[0034] The reference numerals are: 1 storage cylinder, 2 rubber plug, 3 handle, 4 discharge pipe, 5 sealing bearing, 6 drive box, 7 lead screw, 8 extrusion plate, 9 limiting rod, 10 adjusting block, 11 adjusting plate, 12 limiting screw, 13 rotating rod, 14 telescopic rod, 15 probe, 16 fixing nut, 17 fixing screw, 18 servo motor, 19 rotating shaft, 20 first gear, 21 second gear, 22 annular groove, 23 stop block, 24 extension post, 25 electromagnet, 26 magnetic block, 27 insertion rod, 28 extension block, 29 storage ring, 30 fixing rod, 31 baffle plate, 32 universal flexible shaft, 33 rotating seat, 34 grinding plate. Detailed implementation manner

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Refer to Figures 1-9 , a portable detection tool for fillet welds, including a storage cylinder 1. It should be particularly noted that the storage cylinder 1 can store a coupling agent. At the same time, a rubber plug 2 is inserted on the storage cylinder 1, and the rubber plug 2 can facilitate the staff to pull it out. When the staff pulls the rubber plug 2 out of the storage cylinder 1, it is convenient for the staff to add the coupling agent to the storage cylinder 1. At the same time, it should be particularly noted that a discharge pipe 4 is provided on the storage cylinder 1, and a sealing bearing 5 is provided at the connection between the discharge pipe 4 and the storage cylinder 1. When the staff uses the discharge pipe 4, the output end of the discharge pipe 4 can be directly placed below the drive box 6. When the staff needs to use the discharge pipe 4, the output end of the discharge pipe 4 can be directly rotated below the storage cylinder 1, so that the coupling agent in the storage cylinder 1 can be discharged normally.

[0037] At the same time, a lead screw 7 is provided in the storage cylinder 1, and one end of the lead screw 7 is movably connected to the rotating shaft 19 on the servo motor 18. When the servo motor 18 works, the rotating shaft 19 can be rotated, and further the lead screw 7 can be rotated accordingly.

[0038] When the lead screw 7 rotates, since the extrusion plate 8 is threadedly connected to the lead screw 7 and the extrusion plate 8 is limited by the limiting rod 9, the extrusion plate 8 will move along the thread direction of the lead screw 7. Since the storage cylinder 1 stores a coupling agent, the extrusion plate 8 can squeeze the coupling agent out of the discharge pipe 4, which is convenient for the staff to add the coupling agent and further convenient for the staff to use the probe 15.

[0039] At the same time, it should be particularly noted that two adjusting blocks 10 are fixedly connected to the lower end of the storage cylinder 1. An adjusting plate 11 is inserted into each of the two adjusting blocks 10. One end of each of the two adjusting plates 11 extends into the two adjusting blocks 10. At the same time, a limit screw 12 is threadedly connected to each of the two adjusting blocks 10, and a nut is fixedly connected to each adjusting block 10. The two nuts are threadedly connected to the two limit screws 12 respectively. At the same time, one end of each of the two limit screws 12 passes through the side wall of the adjusting block 10 and extends into its interior, and one end of each of the two limit screws 12 is in contact with the adjusting plate 11. When the limit screw 12 is in close contact with the adjusting plate 11, the adjusting plate 11 can be fixed accordingly, so that it is convenient for the staff to change the position of the probe 15 and further convenient for the staff to use the probe.

[0040] Particularly note that a rotating rod 13 is provided between the two adjusting plates 11. Bearings are provided at the connection parts of the two ends of the rotating rod 13 and the two adjusting plates 11 respectively, so that the rotating rod 13 can rotate accordingly. At the same time, it should be particularly noted that fixed nuts 16 are fixedly connected to the side walls of the two adjusting plates 11. Fixed screws 17 are threadedly connected to the two fixed nuts 16 respectively. One end of each of the two fixed screws 17 is threadedly connected to the rotating rod 13. Particularly note that threaded holes are provided at both ends of the rotating rod 13, and the rotating rod 13 is threadedly connected to the threaded holes respectively, so that the rotating rod 13 can be fixed accordingly, and further the position of the probe 15 can be fixed.

[0041] At the same time, it should be particularly noted that two telescopic rods 14 are fixedly connected to the rotating rod 13. Particularly note that the two telescopic rods 14 are both damping telescopic rods. One end of each telescopic rod 14 is fixedly connected to a probe 15 respectively. The sizes of the two probes 15 are different. And it should be particularly noted that the two probes 15 are both ultrasonic probes. Ultrasonic waves are mechanical waves (light and X-rays are electromagnetic waves). Ultrasonic waves basically have the same properties as audible sound waves. They can propagate in elastic media in solid, liquid or gaseous states, but cannot propagate in a vacuum. In many aspects, a beam of ultrasonic waves is similar to a beam of light. Like a light beam, ultrasonic waves can be reflected from the surface, refracted when passing through the boundary of two substances with different sound speeds, and diffracted at the edge or around an obstacle. At the same time, the ultrasonic probe is connected to the host of the flaw detector, which further facilitates the staff to detect the weld. At the same time, the two probes 15 with different sizes can facilitate the staff to deal with different welds, thus facilitating the work of the staff and indirectly improving the work efficiency of the staff.

[0042] Meanwhile, it should be particularly noted that a drive box 6 is fixedly connected to the upper end of the storage cylinder 1, a servo motor 18 is fixedly connected to the inner top end of the drive box 6, a rotating shaft 19 is fixedly connected to the drive shaft of the servo motor 18. Meanwhile, it should be particularly noted that an annular groove 22 is provided in the lead screw 7, and two stoppers 23 are fixedly connected to the inner side wall of the annular groove 22.

[0043] Meanwhile, an extension post 24 is fixedly connected to the inner top end of the rotating shaft 19. Two circular cavities are provided in the extension post 24. Electromagnets 25 are fixedly connected to the inner side walls of the two circular cavities. A shielding plate is provided between the two electromagnets 25, so as to avoid the normal use of the two electromagnets 25. Meanwhile, magnetic blocks 26 are provided in both circular cavities. Plug rods 27 are fixedly connected to the inner side walls of the two magnetic blocks 26. Meanwhile, it should be particularly noted that one end of each of the two plug rods 27 passes through the side wall of the rotating shaft 19 and extends to the outside.

[0044] Meanwhile, it should be particularly noted that extension blocks 28 are fixedly connected to one end of each of the two plug rods 27. The two extension blocks 28 are respectively located on one side of the annular groove 22. When the electromagnet 25 works, the magnetic block 26 can be moved accordingly, so that the plug rod 27 can be moved outward accordingly. In this way, the extension block 28 can enter the annular groove 22. After the extension block 28 enters the annular groove 22 and when the servo motor 18 works, the rotating shaft 19 can be rotated accordingly, so that the extension block 28 can be rotated accordingly. In this way, the extension block 28 can be in contact with the stopper 23. Further, the lead screw 7 can be rotated accordingly, so that the pressing plate 8 can be moved up and down accordingly, so that the coupling agent can be extruded out.

[0045] When the current of the electromagnet 25 is changed, the magnetic block 26 can be moved toward the side close to the electromagnet 25, so that the plug rod 27 can be retracted into the rotating shaft 19 again, so that the extension block 28 can be away from the stopper 23, so that the lead screw 7 stops rotating, and further other components can be used normally.

[0046] When the rotating shaft 19 rotates, the first gear 20 can be rotated accordingly. Meanwhile, it should be particularly noted that a vertical rod is fixedly connected to the inner bottom of the drive box 6. A second gear 21 is rotatably connected to the vertical rod. A bearing is provided at the connection between the second gear 21 and the vertical rod, so that the second gear 21 can rotate normally. The second gear 21 is meshed with the first gear 20. When the first gear 20 rotates, the second gear 21 can be rotated accordingly.

[0047] And a receiving ring 29 is fixedly connected to the side wall of the driving box 6, and a universal flexible shaft 32 is wound in the receiving ring 29. It should be particularly noted that the structure of the universal flexible shaft 32 is the same as that of the universal flexible shaft used in the electric drill. At the same time, the principle of the universal flexible shaft is as follows: Principle of the universal flexible shaft: The outer part is a jacket, and the middle core part is a thin steel wire rope. Both ends of the steel wire rope are supported by bearings. When in use, the steel wire rope rotates and the jacket does not rotate. In the application of manual tools or transmission shafts, flexible shafts are often used. Therefore, when the servo motor 18 works, the grinding plate 34 can be rotated accordingly, so that the staff can slightly grind the rust and impurities at the weld.

[0048] At the same time, two fixing rods 30 are fixedly connected to the upper end of the driving box 6, and baffles 31 are rotatably connected to both fixing rods 30. It should be particularly noted that bearings are provided at the connection between the two baffles 31 and the two fixing rods 30, so that the baffles 31 can rotate accordingly. And it should be particularly noted that the grinding plate 34 is located between the baffle 31 and the driving box 6, which can further limit the driving box 6 and prevent the driving box 6 from detaching.

[0049] At the same time, it should be particularly noted that the grinding plate 34 is similar to a sandpaper disc and a polishing disc, which is composed of a circular plate and sandpaper. The circular plate can fix the sandpaper. The upper end of the circular plate is rotatably connected to a rotating seat 33. It should be particularly noted that the rotating seat 33 is composed of a circular plate and a cylinder. At the same time, the circular plate is rotatably connected to the circular plate, and the cylinder is rotatably connected to the outer shell of the universal flexible shaft 32. This further facilitates the user to hold the grinding plate 34, thus facilitating the use of the user and indirectly improving the work efficiency of the user.

[0050] In the present invention, when the staff needs to use this device, first, the staff can directly move the storage cylinder 1 to a suitable position, and then rotate the rotating rod 13 according to the actual situation of the weld, so that it is convenient for the staff to select different probes 15 according to the actual situation. After the probe 15 rotates, the staff can rotate the fixing screw 17, and with the assistance of the fixing nut 16, the angle of the probe 15 can be fixed, so as to facilitate the subsequent flaw detection of the staff and further facilitate the work of the staff.

[0051] At the same time, the staff can move and adjust the position of the adjusting plate 11 in the adjusting block 10 according to the actual situation. After the staff adjusts the position of the adjusting plate 11 in the adjusting block 10, the staff can rotate the limit screw 12, and with the assistance of the nut, the adjusting plate 11 can be fixed at a suitable position in the adjusting block 10, so as to facilitate the staff to fix the position of the probe 15, so that it is convenient for the staff to adjust the length of the probe 15 according to the actual situation, thus facilitating the detection work of the staff and indirectly improving the work efficiency of the staff.

[0052] Meanwhile, the staff can start the servo motor 18 through the controller. When the servo motor 18 works, the rotating shaft 19 can rotate accordingly. When the rotating shaft 19 rotates, the first gear 20 can rotate. When the first gear 20 rotates, the second gear 21 can rotate accordingly, so that the components in the universal flexible shaft 32 can rotate, and then the grinding plate 34 can rotate. When the grinding plate 34 rotates, it is convenient for the staff to clean the impurities on the weld. At the same time, the staff holds the rotating seat 33, which also facilitates the work of the staff and indirectly improves the cleaning work of the staff.

[0053] Meanwhile, after the grinding is completed, the staff can directly start the electromagnet 25 through the controller. When the electromagnet 25 works, the magnetic block 26 can move accordingly, and then the insertion rod 27 can move accordingly. When the insertion rod 27 moves, the extension block 28 can enter the annular groove 22, so that the extension block 28 can contact the stop block 23. Therefore, when the rotating shaft 19 rotates, the lead screw 7 can rotate accordingly. With the assistance of the limiting rod 9, the pressing plate 8 will move along the thread direction of the lead screw 7, and further the coupling agent in the storage cylinder 1 can be extruded from the discharge pipe 4, so that it is convenient for the staff to use the probe 15 to detect the weld, thus facilitating the work of the staff and indirectly improving the work efficiency of the staff.

[0054] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0055] Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments of the present invention are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0056] Finally: The above description is only the preferred embodiments of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable detection tool for fillet welds, characterized in that; It includes a storage cylinder (1) with a rubber plug (2) inserted thereon, a handle (3) fixedly connected to the storage cylinder (1), and an extrusion assembly provided in the storage cylinder (1). The discharge end of the storage cylinder (1) is provided with a discharge pipe (4), and a sealing bearing (5) is provided at the connection between the discharge pipe (4) and the storage cylinder (1). The lower end of the storage cylinder (1) is connected with an adjusting assembly, and a detecting assembly is connected to the adjusting assembly. The upper end of the storage cylinder (1) is fixedly connected with a driving box (6), a driving assembly is provided in the driving box (6), and the driving assembly is movably connected with the extrusion assembly. The driving assembly includes a servo motor (18) fixedly connected to the inner top end of the driving box (6), a rotating shaft (19) fixedly connected to the driving shaft of the servo motor (18), a first gear (20) coaxially fixedly connected to the side wall of the rotating shaft (19), a second gear (21) rotatably connected to the inner bottom of the driving box (6), and the first gear (20) meshes with the second gear (21). The extrusion assembly includes a lead screw (7) arranged in the storage cylinder (1), an extrusion plate (8) threadedly connected to the lead screw (7), two limiting rods (9) penetrating through the extrusion plate (8), and the upper and lower ends of the two limiting rods (9) are respectively fixedly connected to the side wall of the storage cylinder (1). An annular groove (22) is provided in the lead screw (7), two stoppers (23) are fixedly connected to the inner side wall of the annular groove (22), an extension column (24) penetrates through the rotating shaft (19), and one end of the extension column (24) extends into the lead screw (7). Two electromagnets (25) are provided in the extension column (24), a magnetic block (26) is provided on one side of each of the two electromagnets (25), a plug rod (27) is fixedly connected to one end of each of the two magnetic blocks (26), and an extension block (28) is fixedly connected to one end of each of the two plug rods (27). The two extension blocks (28) are respectively located on one side of the annular groove (22). A limiting assembly is connected to the driving box (6), a grinding assembly is provided on the driving box (6), and one end of the grinding assembly is connected to the driving assembly.

2. The inspection tool for a portable fillet weld according to claim 1, characterized in that: The adjusting assembly includes two adjusting blocks (10) fixedly connected to the lower end of the storage cylinder (1), an adjusting plate (11) is inserted on each of the two adjusting blocks (10), a limiting screw (12) is threadedly connected to each of the two adjusting blocks (10), and one end of each of the two limiting screws (12) respectively passes through the side wall of the two adjusting blocks (10) and contacts the side wall of the adjusting plate (11).

3. The detection tool for a portable fillet weld according to claim 2, characterized in that: The detecting assembly includes a rotating rod (13) arranged between the two adjusting plates (11), damping bearings are provided at the connection between the rotating rod (13) and the two adjusting plates (11), two telescopic rods (14) are fixedly connected to the side wall of the rotating rod (13), and a probe (15) is fixedly connected to one end of each of the two telescopic rods (14).

4. The inspection tool for a portable fillet weld according to claim 3, wherein: Fixed nuts (16) are fixedly connected to the side walls of the two adjusting plates (11), fixing screws (17) are threadedly connected to the two fixed nuts (16), and one ends of the two fixing screws (17) are threadedly connected to the rotating rod (13) respectively.

5. The detection tool for a portable fillet weld according to claim 1, wherein: The limiting assembly includes a receiving ring (29) fixedly connected to the driving box (6), two fixed rods (30) are fixedly connected to the driving box (6), and baffles (31) are sleeved on the two fixed rods (30).

6. The inspection tool for a portable fillet weld according to claim 5, wherein: The grinding assembly includes a universal flexible shaft (32) penetrating through the driving box (6), the first end of the universal flexible shaft (32) is fixedly connected to the second gear (21), the universal flexible shaft (32) is wound around the receiving ring (29), the second end of the universal flexible shaft (32) is sleeved with a rotating seat (33), and a grinding plate (34) is fixedly connected to the second end of the universal flexible shaft (32).

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