Nondestructive evaluation method for welding quality of reinforcing steel bars

Abstract

The invention discloses a nondestructive evaluation method for steel bar welding quality, and relates to the technical field of steel bar welding detection, and the method comprises the following steps: 1, taking out an ultrasonic scanning device, and making early-stage preparation work; 2, ultrasonic scanning parameters are set, and the ultrasonic probe is reset; 3, ultrasonic scanning is conducted on the welding positions of the steel bars; step 4, generating a grey-scale map of a steel bar welding seam; according to the nondestructive evaluation method for the welding quality of the reinforcing steel bars, by arranging the storage box, the electric telescopic rod and the connecting block, an operator does not need to additionally carry a container for storing a coupling agent, and does not need to repeatedly use a brush to dip the coupling agent into the container for use, so that the welding quality of the reinforcing steel bars is detected more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar welding detection, in particular to a nondestructive evaluation method for steel bar welding quality. Background Art

[0002] Ultrasonic testing is a method of using ultrasonic waves to detect welds. Its principle is to detect by emitting ultrasonic waves, analyze after finding abnormal areas, and judge the quality of the welds. After the steel bar welding is completed, the welds are tested with ultrasonic testing instruments to perform non-destructive evaluation of the steel bar welding quality. When using ultrasonic testing instruments for testing, it is necessary to use a brush to dip the coupling agent into the container and apply the coupling agent to the position that needs to be tested, which makes it inconvenient to test the steel bar welding quality. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a non-destructive evaluation method for steel bar welding quality, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention is implemented by the following technical scheme: a non-destructive evaluation method for steel bar welding quality, comprising the following steps:

[0005] Step 1: Take out the ultrasonic scanning equipment and make preliminary preparations;

[0006] Step 2: Set the ultrasonic scanning parameters and reset the ultrasonic probe;

[0007] Step 3: Perform ultrasonic scanning on the welding points of the steel bars;

[0008] Step 4: Generate a grayscale image of the steel bar weld;

[0009] The step 1: taking out the ultrasonic scanning equipment and doing preliminary preparations. The ultrasonic scanning equipment includes an ultrasonic detector, a fixed box is fixedly connected to the bottom of the ultrasonic detector, an arm ring is fixedly connected to the bottom of the fixed box, a first winding box is fixedly connected to one side of the ultrasonic detector, a first servo motor is fixedly connected to one side of the inner cavity of the first winding box, a first winding roller is rotatably connected to one side of the first winding roller, a first wire is wound around the outside of the first winding roller, an output end of the first servo motor extends to the inside of the first winding box and is fixedly connected to one end of the first winding roller, one end of the first wire extends to the outside of the first winding box and is fixedly connected to a handle, one end of the handle is fixedly connected to an ultrasonic head, one side of the ultrasonic head is fixedly connected to a storage box, an electric telescopic rod is fixedly connected to the inside of the storage box, the telescopic end of the electric telescopic rod is fixedly connected to a connecting block, a plurality of bristles are fixedly connected to one side of the connecting block, a plurality of spray holes are opened on one side of the connecting block, and the spray holes are connected to the inside of the connecting block.

[0010] Optionally, a storage drawer is placed inside the fixed box, a storage cavity is defined inside the storage drawer, a fixed plate is fixedly connected to one side of the storage drawer, a first thread groove is defined on one side of the fixed plate, a screw is threadedly connected to the first thread groove, a second thread groove is defined on one side of the fixed box and located at one end of the first thread groove, one end of the screw extends into the second thread groove and is threadedly connected to the second thread groove, and the other end of the screw extends to one side of the fixed plate.

[0011] Optionally, a pump is fixedly connected to the bottom of the fixed box, a connecting groove is provided inside the fixed box and below the storage drawer, a third servo motor is fixedly connected to the bottom of the inner cavity of the connecting groove, a screw rod is rotatably connected to the top of the inner cavity of the connecting groove, an output end of the third servo motor is fixedly connected to the bottom end of the screw rod, a moving block is threadedly connected to the outer side of the screw rod, a first switch valve is fixedly connected to one side of the moving block, an elastic tube is fixedly connected to the bottom of the first switch valve, a second switch valve is fixedly connected to the bottom of the storage drawer, and the top of the first switch valve extends to the interior of one end of the second switch valve.

[0012] Optionally, a second winding box is fixedly connected to the bottom of the first winding box, a second winding roller is rotatably connected to one side of the inner cavity of the second winding box, a second servo motor is fixedly connected to one side of the second winding box, an output end of the second servo motor is fixedly connected to one end of the second winding roller, and a hose is wrapped around the outer side of the second winding roller.

[0013] Optionally, a fixed tube is installed inside the second winding roller, one end of the hose is connected to one end of the fixed tube, a first rotary joint is provided on one side of the inner cavity of the second winding box, one end of the fixed tube is connected to one end of the first rotary joint, a pump is fixedly connected to one side of the second winding box, one end of the pump is connected to one end of the first rotary joint, the other end of the pump is connected to one end of the elastic tube, and one end of the hose is connected to the interior of the connecting block.

[0014] Optionally, two control buttons are fixedly connected to the top of the handle.

[0015] Optionally, a first electronic rotary joint is provided on the other side of the inner cavity of the first winding box, a first wire is wound on the outer side of the first winding roller, a first plug is installed inside the first winding roller, one end of the first wire is connected to one end of the first plug, and the other end of the first plug is connected to one end of the first electronic rotary joint, a second plug is installed on one side of the first winding box, one end of the second plug is connected to one end of the first electronic rotary joint, a connection port is provided on one side of the ultrasonic detector, the other end of the second plug is inserted into the connection port, and a fixing seat is fixedly connected to one side of the first winding box.

[0016] The present invention provides a nondestructive evaluation method for steel bar welding quality, which has the following beneficial effects:

[0017] 1. The nondestructive evaluation method of steel bar welding quality is provided with a storage box, an electric telescopic rod and a connecting block. If coupling agent needs to be applied, the operator presses another control button, the pump is started, so that the coupling agent inside the storage chamber is sucked into the first switch valve through the second switch valve, and then sucked into the elastic tube, and then the coupling agent inside the elastic tube is sucked into the pump, and then discharged into the first rotary joint through the pump, and then discharged into the fixed pipe and the hose through the first rotary joint, and then into the connecting block through the hose, and then sprayed out through the spray hole, and then the sprayed coupling agent is applied to the position to be detected by the bristles. The operator does not need to carry a container for storing coupling agent, and does not need to use a brush to dip the coupling agent into the container for use, so that the steel bar welding quality inspection is more convenient.

[0018] 2. The nondestructive evaluation method of the steel bar welding quality is provided with a handle, an ultrasonic head and a first winding roller. When a control button is pressed, the output end of the first servo motor drives the first winding roller to rotate, so that the first winding roller releases the first wire, and the output end of the second servo motor drives the second winding roller to rotate, so that the hose is released from the outside of the second winding roller. The first winding roller can also be driven by the output end of the first servo motor to reset and rotate, so that the first winding roller rewinds the first wire, and the second winding roller is driven by the output end of the second servo motor to rotate, so that the second winding roller rewinds the hose, so as to prevent the redundant second winding roller and the hose from being hung somewhere, causing the second winding roller and the hose to be damaged, so that the steel bar welding quality inspection is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of the ultrasonic scanning device of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the first winding box of the present invention from a top view;

[0021] Figure 3 This is a schematic diagram of the internal structure of the second winding box of the present invention from a top view;

[0022] Figure 4 For the present invention Figure 1 A magnified image of point A;

[0023] Figure 5 For the present invention Figure 1 The enlarged view of point B;

[0024] Figure 6 For the present invention Figure 1 Enlarged view of point C.

[0025] In the figure: 1, ultrasonic detector; 2, storage chamber; 3, arm ring; 4, first winding box; 5, first winding roller; 6, first wire; 7, first plug; 8, first electronic rotary joint; 9, second plug; 10, first servo motor; 11, handle; 12, ultrasonic head; 13, storage box; 14, electric telescopic rod; 15, connecting block; 16, spray hole; 17, bristles; 18, fixing seat; 19, second winding box; 20, second winding roller; 21, second servo motor; 22, hose; 23, first rotary joint; 24, pump; 25, connecting groove; 26, screw rod; 27, third servo motor; 28, elastic tube; 29, first switch valve; 30, second switch valve; 31, fixing box; 32, storage drawer; 33, fixing plate; 34, screw; 35, first thread groove; 36, second thread groove; 37, connecting port; 38, fixing tube; 39, moving block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Embodiment 1

[0028] The present invention provides a technical solution: a nondestructive evaluation method for steel bar welding quality, comprising the following steps:

[0029] Step 1: Take out the ultrasonic scanning equipment and make preliminary preparations;

[0030] Step 2: Set the ultrasonic scanning parameters and reset the ultrasonic probe;

[0031] Step 3: Perform ultrasonic scanning on the welding points of the steel bars;

[0032] Step 4: Generate a grayscale image of the steel bar weld;

[0033] Embodiment 2

[0034] See also Figures 1 to 6 The present invention provides a technical solution: Step 1: Take out the ultrasonic scanning equipment and do the preliminary preparation work. The ultrasonic scanning equipment includes an ultrasonic detector 1, a fixed box 31 is fixedly connected to the bottom of the ultrasonic detector 1, an arm ring 3 is fixedly connected to the bottom of the fixed box 31, a first winding box 4 is fixedly connected to one side of the ultrasonic detector 1, a first servo motor 10 is fixedly connected to one side of the first winding box 4, a first winding roller 5 is rotatably connected to one side of the inner cavity of the first winding roller 5, a first wire 6 is wound around the outer side of the first winding roller 5, and an output end of the first servo motor 10 extends To the inside of the first winding box 4 and fixedly connected to one end of the first winding roller 5, one end of the first conducting wire 6 extends to the outside of the first winding box 4 and is fixedly connected to a handle 11, one end of the handle 11 is fixedly connected to an ultrasonic head 12, one side of the ultrasonic head 12 is fixedly connected to a storage box 13, an electric telescopic rod 14 is fixedly connected to the inside of the storage box 13, the telescopic end of the electric telescopic rod 14 is fixedly connected to a connecting block 15, one side of the connecting block 15 is fixedly connected to a plurality of bristles 17, one side of the connecting block 15 is provided with a plurality of spray holes 16, and the spray holes 16 are communicated with the inside of the connecting block 15.

[0035] Among them, a storage drawer 32 is placed inside the fixed box 31, and a storage cavity 2 is opened inside the storage drawer 32. A fixing plate 33 is fixedly connected to one side of the storage drawer 32. A first thread groove 35 is opened on one side of the fixing plate 33. A screw 34 is threadedly connected inside the first thread groove 35. A second thread groove 36 is opened on one side of the fixed box 31 and at one end of the first thread groove 35. One end of the screw 34 extends to the inside of the second thread groove 36 and is threadedly connected to the inside of the second thread groove 36. The other end of the screw 34 extends to one side of the fixed plate 33. The screw 34 cooperates with the second thread groove 36 to limit the position of the fixing plate 33 and the storage drawer 32.

[0036] Among them, the bottom of the fixed box 31 is fixedly connected to the pump machine 24, and a connecting groove 25 is opened inside the fixed box 31 and below the storage drawer 32. The bottom of the inner cavity of the connecting groove 25 is fixedly connected to the third servo motor 27, and the top of the inner cavity of the connecting groove 25 is rotatably connected to the screw rod 26. The output end of the third servo motor 27 is fixedly connected to the bottom end of the screw rod 26, and the outer side of the screw rod 26 is threadedly connected to a moving block 39. One side of the moving block 39 is fixedly connected to a first switch valve 29, and the bottom of the first switch valve 29 is fixedly connected to an elastic tube 28. The bottom of the storage drawer 32 is fixedly connected to a second switch valve 30, and the top of the first switch valve 29 extends to the inside of one end of the second switch valve 30, so that the storage drawer 32 can be pulled out from the fixed box 31, which is convenient for replenishing the coupling agent into the storage cavity 2, and then the storage drawer 32 is pushed into the fixed box 31.

[0037] Among them, the bottom of the first winding box 4 is fixedly connected to the second winding box 19, and one side of the inner cavity of the second winding box 19 is rotatably connected to the second winding roller 20. One side of the second winding box 19 is fixedly connected to the second servo motor 21, and the output end of the second servo motor 21 is fixedly connected to one end of the second winding roller 20. A hose 22 is wrapped around the outside of the second winding roller 20. When the handle 11 is not needed, press the control button on the top of the handle 11. At this time, the output end of the first servo motor 10 drives the first winding roller 5 to reset and rotate, so that the first winding roller 5 reels the first wire 6, and the output end of the second servo motor 21 drives the second winding roller 20 to rotate, so that the second winding roller 20 reels the hose 22.

[0038] Among them, a fixed tube 38 is installed inside the second winding roller 20, one end of the hose 22 is connected to one end of the fixed tube 38, a first rotary joint 23 is provided on one side of the inner cavity of the second winding box 19, one end of the fixed tube 38 is connected to one end of the first rotary joint 23, a pump 24 is fixedly connected to one side of the second winding box 19, one end of the pump 24 is connected to one end of the first rotary joint 23, the other end of the pump 24 is connected to one end of the elastic tube 28, one end of the hose 22 is connected to the inside of the connecting block 15, so as to input the coupling agent extracted from the storage cavity 2 through the pump 24 into the inside of the connecting block 15, so that the coupling agent can enter the inside of the spray hole 16 through the connecting block 15, and then be sprayed at the position to be detected through the spray hole 16.

[0039] Among them, two control buttons are fixedly connected to the top of the handle 11, which can control the detection equipment.

[0040] Among them, a first electronic rotary joint 8 is arranged on the other side of the inner cavity of the first winding box 4, a first wire 6 is wound on the outer side of the first winding roller 5, a first plug 7 is installed inside the first winding roller 5, one end of the first wire 6 is connected to one end of the first plug 7, and the other end of the first plug 7 is connected to one end of the first electronic rotary joint 8, a second plug 9 is installed on one side of the first winding box 4, one end of the second plug 9 is connected to one end of the first electronic rotary joint 8, a connection port 37 is arranged on one side of the ultrasonic detector 1, and the other end of the second plug 9 is inserted into the connection port 37, and a fixed seat 18 is fixedly connected to one side of the first winding box 4, and the ultrasonic head 12 can be placed on the top of the fixed seat 18.

[0041] In summary, when the nondestructive evaluation method of steel bar welding quality is used, when the steel bar welding quality needs to be tested, the operator takes out the testing equipment, and then wears it on the arm through the armband 3, and then holds the handle 11 with the hand, and then presses a control button. At this time, the output end of the first servo motor 10 drives the first winding roller 5 to rotate, so that the first winding roller 5 releases the first wire 6, and the output end of the second servo motor 21 drives the second winding roller 20 to rotate, so that the hose 22 is released from the outside of the second winding roller 20, and then the operator can pull out the handle 11 and the ultrasonic head 12 for use. If coupling agent needs to be applied, the operator presses another control button The pump 24 is started, so that the coupling agent in the storage chamber 2 is sucked into the first switch valve 29 through the second switch valve 30, and then sucked into the elastic tube 28, and then the coupling agent in the elastic tube 28 is sucked into the pump 24, and then discharged into the first rotary joint 23 through the pump 24, and then discharged into the fixed pipe 38 and the hose 22 through the first rotary joint 23, and then enters the connection block 15 through the hose 22, and then sprayed out through the spray hole 16, and then the sprayed coupling agent is applied to the position to be detected through the bristles 17, and then the control button is pressed, at this time the pump 24 is closed, and then the telescopic end of the electric telescopic rod 14 drives the connection The block 15, the spray hole 16 and the bristles 17 are reset and moved, and then the operator holds the handle 11 by hand, so that the handle 11 drives the ultrasonic head 12 to detect the position of the steel bar to be detected, and obtains the grayscale image of the steel bar weld. According to the grayscale image of the steel bar weld, the steel bar welding quality is evaluated. If the coupling agent inside the storage chamber 2 needs to be supplemented, the first switch valve 29 and the second switch valve 30 are closed, and then the output end of the third servo motor 27 drives the screw rod 26 to rotate, so that the screw rod 26 drives the moving block 39 to drive one end of the first switch valve 29 to move out of the second switch valve 30, and then the operator screws the screw 34 so that one end of the screw 34 moves out of the second thread groove 3 6, and then the operator pulls the fixing plate 33, so that the fixing plate 33 drives the storage drawer 32 to move out from the fixing box 31, and then replenishes the coupling agent into the storage chamber 2, and then pushes the storage drawer 32 into the fixing box 31. Then the operator screws one end of the screw 34 into the second thread groove 36 to fix the position of the fixing plate 33 and the storage drawer 32. Then the output end of the third servo motor 27 drives the lead screw 26 to reset and rotate, so that the lead screw 26 drives one end of the first switch valve 29 to be inserted into the second switch valve 30, and then the second switch valve 30 and the first switch valve 29 are opened, so that the pump 24 is connected with the storage chamber 2.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nondestructive evaluation method for steel bar welding quality, characterized in that: The following steps are involved: Step 1: Take out the ultrasonic scanning equipment and make preliminary preparations; Step 2: Set the ultrasonic scanning parameters and reset the ultrasonic probe; Step 3: Perform ultrasonic scanning on the welding points of the steel bars; Step 4: Generate a grayscale image of the steel bar weld; The step 1: taking out the ultrasonic scanning device and completing preliminary preparations. The ultrasonic scanning device comprises an ultrasonic detector (1), the bottom of the ultrasonic detector (1) is fixedly connected to a fixing box (31), the bottom of the fixing box (31) is fixedly connected to an arm ring (3), one side of the ultrasonic detector (1) is fixedly connected to a first winding box (4), one side of the first winding box (4) is fixedly connected to a first servo motor (10), one side of the inner cavity of the first winding box (4) is rotatably connected to a first winding roller (5), the outer side of the first winding roller (5) is wound with a first wire (6), and the output end of the first servo motor (10) extends to the inside of the first winding box (4). The brush (15) is fixedly connected to one end of the first winding roller (5); one end of the first conducting wire (6) extends to the outside of the first winding box (4) and is fixedly connected to a handle (11); one end of the handle (11) is fixedly connected to an ultrasonic head (12); one side of the ultrasonic head (12) is fixedly connected to a storage box (13); an electric telescopic rod (14) is fixedly connected to the inside of the storage box (13); the telescopic end of the electric telescopic rod (14) is fixedly connected to a connecting block (15); one side of the connecting block (15) is fixedly connected to a plurality of bristles (17); one side of the connecting block (15) is provided with a plurality of spray holes (16); the spray holes (16) are connected to the inside of the connecting block (15).

2. The nondestructive evaluation method for steel bar welding quality according to claim 1, characterized in that: A storage drawer (32) is placed inside the fixed box (31), a storage cavity (2) is provided inside the storage drawer (32), a fixed plate (33) is fixedly connected to one side of the storage drawer (32), a first thread groove (35) is provided on one side of the fixed plate (33), a screw (34) is threadedly connected inside the first thread groove (35), a second thread groove (36) is provided on one side of the fixed box (31) and located at one end of the first thread groove (35), one end of the screw (34) extends into the second thread groove (36) and is threadedly connected to the second thread groove (36), and the other end of the screw (34) extends to one side of the fixed plate (33).

3. The nondestructive evaluation method for steel bar welding quality according to claim 2, characterized in that: The bottom of the fixed box (31) is fixedly connected to a pump (24); a connecting groove (25) is provided inside the fixed box (31) and below the storage drawer (32); a third servo motor (27) is fixedly connected to the bottom of the inner cavity of the connecting groove (25); a screw rod (26) is rotatably connected to the top of the inner cavity of the connecting groove (25); an output end of the third servo motor (27) is fixedly connected to the bottom end of the screw rod (26); a moving block (39) is threadedly connected to the outer side of the screw rod (26); a first switch valve (29) is fixedly connected to one side of the moving block (39); an elastic tube (28) is fixedly connected to the bottom of the first switch valve (29); a second switch valve (30) is fixedly connected to the bottom of the storage drawer (32); and a top end of the first switch valve (29) extends to the inside of one end of the second switch valve (30).

4. The nondestructive evaluation method for steel bar welding quality according to claim 3, characterized in that: A second winding box (19) is fixedly connected to the bottom of the first winding box (4); a second winding roller (20) is rotatably connected to one side of the inner cavity of the second winding box (19); a second servo motor (21) is fixedly connected to one side of the second winding box (19); an output end of the second servo motor (21) is fixedly connected to one end of the second winding roller (20); and a hose (22) is wound around the outer side of the second winding roller (20).

5. The nondestructive evaluation method for steel bar welding quality according to claim 4, characterized in that: A fixed tube (38) is installed inside the second winding roller (20), one end of the hose (22) is connected to one end of the fixed tube (38), a first rotary joint (23) is provided on one side of the inner cavity of the second winding box (19), one end of the fixed tube (38) is connected to one end of the first rotary joint (23), a pump (24) is fixedly connected to one side of the second winding box (19), one end of the pump (24) is connected to one end of the first rotary joint (23), the other end of the pump (24) is connected to one end of the elastic tube (28), and one end of the hose (22) is connected to the inside of the connecting block (15).

6. The nondestructive evaluation method for steel bar welding quality according to claim 1, characterized in that: Two control buttons are fixedly connected to the top of the handle (11).

7. The nondestructive evaluation method for steel bar welding quality according to claim 1, characterized in that: A first electronic rotary joint (8) is arranged on the other side of the inner cavity of the first winding box (4); a first wire (6) is wound around the outer side of the first winding roller (5); a first plug (7) is installed inside the first winding roller (5); one end of the first wire (6) is connected to one end of the first plug (7); the other end of the first plug (7) is connected to one end of the first electronic rotary joint (8); a second plug (9) is installed on one side of the first winding box (4); one end of the second plug (9) is connected to one end of the first electronic rotary joint (8); a connection port (37) is arranged on one side of the ultrasonic detector (1); the other end of the second plug (9) is inserted into the connection port (37); and a fixing seat (18) is fixedly connected to one side of the first winding box (4).

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