Ultrasonic welding seam detection device capable of stably sliding

Abstract

The utility model discloses an ultrasonic welding seam detection device capable of stably sliding, which is characterized in that a first sliding rail is arranged at the top end of a detection bracket, a first sliding platform is arranged on the first sliding rail, and a first linear driving device drives a detection assembly to reciprocate along the first sliding rail, so that a linear welding seam is detected; a second sliding rail is arranged on the end face of the bottom end of the first sliding platform, a detection assembly is arranged on the second sliding rail, and a second linear driving device for controlling the detection assembly to slide in the length direction of the second sliding rail is arranged at one end of the second sliding rail. The second linear driving device drives the detection assembly to move back and forth in the length direction of the second sliding rail, steering of the detection assembly can be achieved through the rotating structure, and therefore the weld joint on the bent pipe can be detected conveniently, and the elastic wheels are compacted on the two sides of the weld joint to be detected, so that the detection accuracy is improved. Therefore, the detection probe is more stable when attached to the weld position for horizontal movement detection.

Description

Technical Field

[0001] The utility model relates to the technical field of welding detection, in particular to an ultrasonic weld detection device capable of stable sliding. Background Art

[0002] At present, the use of ultrasonic automatic flaw detection is a very economical and effective means to inspect and control the quality of pipe welds. It is also a necessary detection method for the production of important pipelines in recent years. During the welding process, due to the influence of various factors, cracks, pores, slag inclusions, incomplete penetration and lack of fusion defects are easily generated in the welds. The existence of defects can easily form stress concentration and produce cracks, leading to steel structure fractures, and reduce the corrosion resistance of the welds.

[0003] The principle of ultrasonic automatic flaw detection is that the ultrasonic probe emits high-frequency ultrasonic waves, which propagate along the inside of the weld pipe. When the ultrasonic waves encounter different density interfaces or defects in the weld, they will be reflected or refracted to form specific sound wave signals. These reflected sound wave signals, i.e. echoes, will be received by the ultrasonic probe. After the signal is analyzed by the control system, the shape of the defect is depicted. The ultrasonic probe needs to move along the weld under the control of the weld tracking system.

[0004] The existing ultrasonic detection probe holder is not stable enough in horizontal movement during use, and the moving distance cannot be accurately controlled. At the same time, during the ultrasonic test, the test probe (i.e., ultrasonic probe) must be in contact with the workpiece to be tested (such as a steel pipe). When testing the weld on the bent pipe, the ultrasonic probe cannot be quickly adjusted according to the needs of the bent pipe weld. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes a stably sliding ultrasonic weld detection device, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] A stably slidable ultrasonic weld detection device comprises a base and a detection bracket arranged on one side of the base, a plurality of clamping devices are arranged along the length direction of the base, a first slide rail extending along the length direction of the base is arranged at the top end of the detection bracket, a first slide rail is arranged on the first slide rail, a first slide platform is arranged on the first slide rail, a first linear drive device for controlling the first slide platform to slide along the length direction of the first slide rail is arranged at one end of the first slide rail, a second slide rail facing perpendicular to the conveying direction of the first slide rail is arranged on the bottom end surface of the first slide platform, a detection component is arranged on the second slide rail, and a second linear drive device for controlling the detection component to slide along the length direction of the second slide rail is arranged at one end of the second slide rail.

[0007] As an improvement of the above solution, the detection assembly includes a third linear drive device with an output end facing vertically downward, a detection probe connected to the output end of the third linear drive device, and elastic wheels arranged on both sides of the detection probe.

[0008] As an improvement of the above scheme, the third linear drive device is a linear drive cylinder, the output end of the linear drive cylinder is provided with a landing bracket, the middle part of the landing bracket is provided with a detection probe with the output end facing downward, and elastic wheels are provided near the two ends of the landing bracket.

[0009] As an improvement of the above solution, the outer surface of the elastic wheel is covered with a layer of rubber, the middle of the elastic wheel is connected with a telescopic bracket, the telescopic bracket includes a first telescopic bracket and a second telescopic bracket, and the outer surface of the telescopic bracket is sleeved with a spring.

[0010] As an improvement of the above solution, the first linear drive device includes a rotating motor, a first screw rod and a fixed sleeve, the output end of the rotating motor is connected to the first screw rod, the fixed sleeve is provided on one side of the first sliding platform, the first screw rod and the fixed sleeve are arranged on the same side of the first sliding platform, and the first screw rod passes through the axis of the fixed sleeve and is meshed with the fixed sleeve.

[0011] As an improvement of the above scheme, the second linear drive device includes a rotating handle, a second screw rod and a second sliding platform. The second screw rod passes through the second sliding platform along the length direction and engages with the second sliding platform. The rotating handle is arranged at an end of the second screw rod away from the first linear drive device.

[0012] As an improvement of the above solution, a rotating bracket is provided between the second sliding platform and the detection assembly, the rotating bracket is C-shaped, and a rotating structure is provided between the top of the rotating bracket and the second sliding platform.

[0013] As an improvement of the above solution, the rotating structure includes a first shaft connected to the bottom end of the second sliding platform and a second shaft arranged at the top end of the rotating bracket, and the first shaft and the second shaft are axially rotatably connected.

[0014] As an improvement of the above scheme, a locking sleeve is provided on the outer edge of the first shaft body, and four fixing blocks are evenly spaced around the inner surface of the locking sleeve. The outer surface of the second shaft body close to one end of the first shaft body is provided with fixing grooves corresponding to the number and position of the fixing blocks.

[0015] The beneficial effects of the utility model are as follows: the first linear drive device drives the detection component to move back and forth along the first slide rail, so as to detect the straight-line weld; the second linear drive device drives the detection component to move back and forth along the length direction of the second slide rail; the rotation structure can realize the steering of the detection component, so as to facilitate the detection of the weld on the bent pipe; by pressing the elastic wheel on both sides of the weld to be detected, the detection probe is more stable when it is fitted to the weld position and moved horizontally for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the base structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the detection bracket of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the locking sleeve of the utility model in the loosened state.

[0019] Figure 4 It is a schematic diagram of the locking state structure of the locking sleeve of the utility model.

[0020] Figure 5 It is a schematic diagram of the telescopic bracket structure of the utility model.

[0021] Wherein: base 1, detection bracket 101, clamping device 102, first slide rail 2, first sliding platform 201, first linear drive device 3, rotating motor 301, first screw rod 302, fixed sleeve 303, second slide rail 4, detection component 5, detection probe 501, elastic wheel 502, first telescopic bracket 503, second telescopic bracket 504, spring 505, second linear drive device 6, rotating handle 601, second screw rod 602, second sliding platform 603, third linear drive device 7, linear drive cylinder 701, landing bracket 702, rotating bracket 8, rotating structure 9, first shaft body 901, second shaft body 902, locking sleeve 903, fixed block 904, fixed groove 905. DETAILED DESCRIPTION

[0022] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0023] like Figures 1 to 5As shown, a stably slidable ultrasonic weld detection device includes a base 1 and a detection bracket 101 arranged on one side of the base 1, a plurality of clamping devices 102 are arranged along the length direction of the base 1, a first slide rail 2 extending along the length direction of the base 1 is arranged at the top of the detection bracket 101, a first sliding platform 201 is arranged on the first slide rail 2, a first linear drive device 3 for controlling the first sliding platform 201 to slide along the length direction of the first slide rail 2 is arranged at one end of the first slide rail 2, a second slide rail 4 facing perpendicular to the conveying direction of the first slide rail 2 is arranged on the bottom end surface of the first slide platform 201, a detection component 5 is arranged on the second slide rail 4, and a second linear drive device 6 for controlling the detection component 5 to slide along the length direction of the second slide rail 4 is arranged at one end of the second slide rail 4.

[0024] like Figure 1 and Figure 2 As shown, in terms of structure, the utility model is provided with a clamping device 102 along the length direction of the base 1, and the clamping device 102 is used to place the welded plate or pipe, and align the weld of the workpiece with the detection component 5 upward, the first linear drive device 3 drives the first sliding platform 201 to move horizontally along the length direction of the base 1, and the weld in the length direction of the workpiece is detected by the detection component 5 arranged on the first sliding platform 201, and a second slide rail 4 is provided below the first sliding platform 201, and the detection component 5 is driven by the second linear drive device 6 to move horizontally along the length direction of the second slide rail 4 to detect the weld in the width direction of the workpiece;

[0025] like Figure 2 As shown, it should be noted that the detection probe 501 of the detection component 5 is arranged above the base 1, and a first sliding platform 201 is connected between the detection component 5 and the first slide rail 2. The first sliding platform 201 moves horizontally along the length direction of the first slide rail 2 through the first linear drive device 3. The first linear drive device 3 includes a rotating motor 301, a first screw rod 302 and a fixed sleeve 303. The fixed sleeve 303 is arranged on one side of the first sliding platform 201. The first screw rod 302 and the fixed sleeve 303 are arranged on the same side of the first sliding platform 201, and the first screw rod 302 passes through the axis of the fixed sleeve 303 and is meshed and connected with the fixed sleeve 303.

[0026] like Figure 2As shown, further, in the above scheme, the output end of the rotating motor 301 is connected to the first screw rod 302, and the first screw rod 302 is driven to rotate by the rotating motor 301, driving the fixed sleeve 303 mounted on the first screw rod 302 to reciprocate along the length direction of the first screw rod 302, thereby driving the first sliding platform 201 to move along the length direction of the first slide rail 2, so that the detection component 5 moves horizontally along the length direction of the base 1.

[0027] like Figure 2 As shown, it should be noted that the bottom end face of the first sliding platform 201 is provided with a second sliding rail 4 extending along its length direction, and the second sliding rail 4 is provided with a second sliding platform 603, and the detection component 5 is arranged on the second sliding platform 603, and the second sliding platform 603 is driven by the second linear drive device 6 to move along the length direction of the second sliding rail 4, thereby controlling the detection component 5 to move horizontally along the width direction of the workpiece, which can effectively detect arc welds or bent pipe welds, the movement is more stable, and it can be quickly adjusted according to the weld.

[0028] Further, in the above scheme, the second linear drive device 6 includes a rotating handle 601, a second screw rod 602 and a second sliding platform 603, the second screw rod 602 passes through the second sliding platform 603 along the length direction and is engaged with the second sliding platform 603, and the rotating handle 601 is arranged at one end of the second screw rod 602 away from the first linear drive device 3;

[0029] like Figure 2 As shown, specifically, the rotation of the second screw rod 602 is controlled by rotating the rotating handle 601, and the second screw rod 602 is passed through the middle part of the second sliding platform 603. The rotation of the second screw rod 602 drives the second sliding platform 603 to move horizontally along the length direction of the second screw rod 602, and at the same time drives the detection device to move along the length direction of the second slide rail 4.

[0030] Furthermore, in the above scheme, the detection component 5 includes a third linear drive device 7 with an output end facing vertically downward, a detection probe 501 connected to the output end of the third linear drive device 7 , and elastic wheels 502 arranged on both sides of the detection probe 501 .

[0031] Furthermore, in the above scheme, the third linear drive device 7 is a linear drive cylinder 701, and a landing bracket 702 is provided at the output end of the linear drive cylinder 701. A detection probe 501 with the output end facing downward is provided in the middle of the landing bracket 702, and elastic wheels 502 are provided near the two ends of the landing bracket 702.

[0032] Furthermore, in the above scheme, the outer surface of the elastic wheel 502 is covered with a layer of rubber, and a telescopic bracket is connected to the middle of the elastic wheel 502. The telescopic bracket includes a first telescopic bracket 503 and a second telescopic bracket 504. The outer surface of the telescopic bracket is sleeved with a spring 505.

[0033] It should be noted that, during use of the utility model, the plate to be inspected is placed on the clamping device 102, and the weld to be inspected is placed facing upwards, and the third linear drive device 7 drives the elastic wheel 502 to press down against the surface of the workpiece, and the telescopic bracket on the elastic wheel 502 is compressed to make the detection component 5 fit against the surface of the workpiece, effectively preventing the detection probe 501 from directly hitting the surface of the workpiece. When the elastic wheel 502 is in contact with the surface of the workpiece, the first linear drive device 3 and the second linear drive device 6 drive the detection component 5 to move horizontally more stably.

[0034] Furthermore, in the above solution, a rotating bracket 8 is provided between the second sliding platform 603 and the detection assembly 5 , the rotating bracket 8 is C-shaped, and a rotating structure 9 is provided between the top of the rotating bracket 8 and the second sliding platform 603 .

[0035] Furthermore, in the above scheme, the rotating structure 9 includes a first shaft 901 connected to the bottom end of the second sliding platform 603 and a second shaft 902 arranged at the top end of the rotating bracket 8, and the first shaft 901 and the second shaft 902 are axially rotatably connected.

[0036] Furthermore, in the above scheme, a locking sleeve 903 is provided on the outer edge of the first shaft body 901, and four fixing blocks 904 are evenly spaced around the inner surface of the locking sleeve 903, and the outer surface of the second shaft body 902 close to one end of the first shaft body 901 is provided with fixing grooves 905 corresponding to the number and position of the fixing blocks 904.

[0037] like Figure 3 and Figure 4As shown, it should be noted that the first shaft body 901 and the second shaft body 902 are axially aligned and movably connected, and the locking sleeve 903 is sleeved on the outer surface of the first shaft body 901. When it is necessary to rotate the rotating bracket 8 to change the axial angle of the detection device, the locking sleeve 903 is manually pushed upward to disengage the fixing block 904 from the fixing groove 905, and the second shaft body 902 is axially rotated 90° along the axis of the first shaft body 901. After the rotation angle is completed, the locking sleeve 903 is manually pushed downward to reset the fixing block 904 and engage it in the fixing groove 905, so that the first shaft body 901 and the second shaft body 902 are coaxially fixed to prevent the second shaft body 902 from loosening during horizontal movement, causing the angle of the detection component 5 to shift.

[0038] It should be noted that in one embodiment of the present invention, when the weld is detected on a bent pipe with a vertical bend, the third linear drive device 7 presses down the rubber wheel so that the rubber wheel abuts against positions close to both sides of the workpiece in the width direction, thereby fixing the workpiece and maintaining the stability of the horizontal movement of the detection component 5. After the first linear drive device 3 detects the right-angled side of one side of the bent pipe, the rotation structure 9 controls the steering of the rubber wheel to keep the rubber wheel abutting against positions on both sides of the width direction of the bent workpiece, thereby maintaining the stability of the workpiece transmission.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A stable sliding ultrasonic weld detection device, characterized in that: The invention comprises a base (1) and a detection bracket (101) arranged on one side of the base (1), a plurality of clamping devices (102) are arranged along the length direction of the base (1), a first slide rail (2) extending along the length direction of the base (1) is arranged at the top end of the detection bracket (101), a first sliding platform (201) is arranged on the first slide rail (2), a first linear drive device (3) for controlling the first sliding platform (201) to slide along the length direction of the first slide rail (2) is arranged at one end of the first slide rail (2), a second slide rail (4) facing perpendicular to the conveying direction of the first slide rail (2) is arranged on the bottom end surface of the first slide rail (2), a detection component (5) is arranged on the second slide rail (4), and a second linear drive device (6) for controlling the detection component (5) to slide along the length direction of the second slide rail (4) is arranged at one end of the second slide rail (4); The detection assembly (5) comprises a third linear drive device (7) with an output end pointing vertically downward, a detection probe (501) connected to the output end of the third linear drive device (7), and elastic wheels (502) arranged on both sides of the detection probe (501); The third linear drive device (7) is a linear drive cylinder (701), the output end of the linear drive cylinder (701) is provided with a landing bracket (702), the middle part of the landing bracket (702) is provided with a detection probe (501) with the output end facing downward, and elastic wheels (502) are provided near the two ends of the landing bracket (702).

2. The stably slidable ultrasonic weld detection device according to claim 1, characterized in that: The outer surface of the elastic wheel (502) is coated with a layer of rubber. A telescopic bracket is connected to the middle of the elastic wheel (502). The telescopic bracket comprises a first telescopic bracket (503) and a second telescopic bracket (504). A spring (505) is sleeved on the outer surface of the telescopic bracket.

3. The stably slidable ultrasonic weld detection device according to claim 1, characterized in that: The first linear drive device (3) comprises a rotating motor (301), a first screw rod (302) and a fixed sleeve (303); the output end of the rotating motor (301) is connected to the first screw rod (302); the fixed sleeve (303) is provided on one side of the first sliding platform (201); the first screw rod (302) and the fixed sleeve (303) are arranged on the same side of the first sliding platform (201); and the first screw rod (302) passes through the axis of the fixed sleeve (303) and is meshedly connected with the fixed sleeve (303).

4. The stably slidable ultrasonic weld detection device according to claim 1, characterized in that: The second linear drive device (6) comprises a rotating handle (601), a second screw rod (602) and a second sliding platform (603); the second screw rod (602) passes through the second sliding platform (603) along the length direction and engages with the second sliding platform (603); the rotating handle (601) is arranged at an end of the second screw rod (602) away from the first linear drive device (3).

5. The stably slidable ultrasonic weld detection device according to claim 4, characterized in that: A rotating bracket (8) is provided between the second sliding platform (603) and the detection assembly (5); the rotating bracket (8) is C-shaped, and a rotating structure (9) is provided between the top of the rotating bracket (8) and the second sliding platform (603).

6. The stably slidable ultrasonic weld detection device according to claim 5, characterized in that: The rotating structure (9) comprises a first shaft (901) connected to the bottom end of the second sliding platform (603), and a second shaft (902) arranged at the top end of the rotating bracket (8), wherein the first shaft (901) and the second shaft (902) are axially rotatably connected.

7. The stably slidable ultrasonic weld detection device according to claim 6, characterized in that: A locking sleeve (903) is sleeved on the outer edge of the first shaft body (901), and four fixing blocks (904) are evenly spaced around the inner surface of the locking sleeve (903); and fixing grooves (905) corresponding in number and position to the fixing blocks (904) are provided on the outer surface of one end of the second shaft body (902) close to the first shaft body (901).

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