Clean pipeline welding detection device and detection method

Abstract

The invention relates to the field of clean pipeline welding detection, in particular to a clean pipeline welding detection device and method, and the clean pipeline welding detection device comprises a first connecting frame, and a U-shaped frame is mounted on the inner wall of the first connecting frame. One set of the first connecting frame and the second connecting frame is fixed to the surface of a clean pipeline through an electromagnet, the first connecting frame and the second connecting frame are close to each other through cooperation of a screw and an inner threaded barrel, the whole device moves on the surface of the pipeline through the alternate work, and when the device meets the bent position of the pipeline, the first servo motor rotates to drive the second servo motor to rotate. The first connecting frame drives the second connecting frame to rotate integrally through the screw rod and the sliding rod, and the falling point position of the second connecting frame can be changed by repeating the parallel movement process in the process, so that the effect of adjusting according to the radian of a bent part is achieved, and the ultrasonic detection head detects a welding seam in the whole process; therefore, manual high-altitude operation is avoided, and the difficulty and the safety risk of welding seam detection are reduced.

Description

Technical Field

[0001] The invention relates to the field of clean pipeline welding detection, and in particular to a clean pipeline welding detection device and a detection method. Background Art

[0002] Clean pipe is a special purification treatment method, which is mainly used in pipes isolated from the indoor air environment to ensure the ultra-high cleanliness requirements of the process production line. During its installation, the joints of the pipes need to be welded. However, after welding, due to the high sealing requirements of the pipes, the welds need to be inspected to ensure the overall quality of the pipes.

[0003] The Chinese invention patent application with announcement number CN111307955B is a kind of ultrasonic pipeline weld detection machine, wherein a first support rod is fixedly installed on the lower end wall of the box body, a first rotating shaft is rotatably installed on the upper end of the first support rod, a first pulley is fixedly installed on the first rotating shaft, a second support rod located behind the first support rod is fixedly installed on the lower end wall of the box body, a first motor is fixedly installed on the upper end of the second support rod, a second pulley is fixedly installed on the output shaft of the first motor, the second pulley is connected to the first pulley through a first belt, a pipeline is arranged above the first belt, and a fixing mechanism is arranged on the pipeline. The ultrasonic pipeline weld detection machine invented this time adopts a fully automated method to detect pipeline welds. When the pipeline passes through the machine, the machine fixes the pipeline and rotates it.

[0004] The existing pipeline weld detection method generally uses ultrasonic wave to detect welds. However, since the clean pipeline may be located at a high position after welding and installation, the existing weld detection device cannot detect welds at high positions and requires manual handheld detection devices to detect them. In addition, there will be certain bends in the pipeline at high places. The existing manual climbing detection method not only increases the difficulty of detection, but also increases the risk of personnel safety during detection.

[0005] Therefore, it is necessary to invent a clean pipeline welding detection device and a detection method to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a clean pipeline welding detection device and detection method, which can achieve the mutual approach of the two by alternately fixing the connection frame one and the connection frame two and rotating the screw in the internal threaded barrel, and can also achieve the effect of alternately driving the other party to rotate as a whole through the screw and the sliding rod, so as to achieve the effect of the device moving or turning on the pipeline surface, so as to solve the problem that the high welds of the pipeline in the prior art need to be manually climbed, which increases the difficulty and risk of the operation.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: A clean pipeline welding detection device, comprising a connection frame 1, a U-shaped frame is installed on the inner wall of the connection frame 1, a plurality of groups of ultrasonic detection heads are installed on the inner wall of the U-shaped frame, a controller is installed on the inner wall of the connection frame 1, and the controller is linearly connected to the plurality of groups of ultrasonic detection heads, a connection frame 2 is arranged on one side of the connection frame 1, and the opening of the connection frame 2 is in opposite directions to the opening of the connection frame 1, and the internal structures of the connection frame 1 and the connection frame 2 are the same;

[0008] A driving assembly is arranged outside the connection frame 1 and the connection frame 2, and is used to drive the connection frame 1 and the connection frame 2 to move along the surface of the clean pipeline;

[0009] The fixing assembly is arranged inside the connection frame 1 and the connection frame 2, and is used to fix the connection frame 1 and the connection frame 2 on the surface of the clean pipeline.

[0010] As a preferred solution of the present invention, the driving assembly includes a rotating seat 1, which is rotatably connected to the outside of a connecting frame 1, a fixed seat is installed on one side of the rotating seat 1, a servo motor 2 is installed on one side of the fixed seat, and the servo motor 2 is wirelessly connected to the controller via Bluetooth.

[0011] As a preferred solution of the present invention, the side of the fixed seat away from the servo motor 2 is rotatably connected to a screw, and the screw is axially connected to the output end of the servo motor 2. The rotating seat on the outside of the connecting frame 2 is fixedly connected to an internal threaded barrel on one side, and the internal threaded barrel is threadedly connected to the screw.

[0012] As a preferred solution of the present invention, the connecting frame 1 is rotatably connected to the rotating seat 2 at one side away from the rotating seat 1, a servo motor 1 is installed on one side of the rotating seat 2, and the servo motor 1 is wirelessly connected to the controller via Bluetooth, a protective tube is sleeved on the servo motor 1, and the protective tube is connected to the rotating seat 2.

[0013] As a preferred solution of the present invention, a sliding rod is installed on one side of the protective tube, a guide tube is installed on the outside of the protective tube on one side of the rotating seat 2 of the connecting frame 2, and the guide tube is sleeved with the sliding rod, a nut is screwed on the sliding rod, and the nut is fitted with one side of the guide tube, and a nut is also screwed on the screw rod, and this nut is fitted with one side of the internal threaded tube.

[0014] As a preferred solution of the present invention, a plurality of groups of position sensors are installed at the edge of the connection frame 1 and the U-shaped frame, and the position sensors are wirelessly connected to the controller via Bluetooth.

[0015] As a preferred solution of the present invention, the fixing component includes a connecting cavity, which is symmetrically opened on an inner wall of a connecting frame, and two groups are symmetrically opened with the center of the U-shaped frame as the axis. Three groups of limiting cylinders are installed on the inner wall of the connecting cavity in sequence, and a push rod is connected through the limiting cylinder. A limiting ring is fixedly connected to one side of the push rod, and the limiting ring is slidably connected to the limiting cylinder.

[0016] As a preferred solution of the present invention, a spring is sleeved on the push rod, and one side of the spring is in contact with the limiting ring, and the opposite side of the spring is in contact with the inner wall of the limiting cylinder. An electromagnet is installed on the side of the push rod away from the limiting ring, and the electromagnet is arranged in the connecting cavity.

[0017] A clean pipeline welding detection method includes a clean pipeline welding detection device as described above, and the processing steps are specifically as follows:

[0018] S1: Connect the connection frame 1 and the connection frame 2 to the surface of the clean pipe, and insert the screw and the slide rod into the guide cylinder of the internal thread cylinder;

[0019] S2: The connection frame 2 is fixed, and the servo motor 2 rotates at the same time, so that the connection frame 1 moves closer to the connection frame 2, and the overall movement is achieved by alternating the connection frame 1 and the connection frame 2;

[0020] S3: When encountering a pipe bend, the connection frame 1 is fixed, and the servo motor 1 rotates to control the overall rotation of the connection frame 2. The servo motor 1 on one side of the connection frame 2 rotates to accurately control the angle of the connection frame 2. During this process, the ultrasonic detection head detects the weld on the surface of the pipe.

[0021] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0022] Through the electromagnet, one of the connection frames 1 and 2 is fixed on the surface of the clean pipe, and through the cooperation of the screw and the internal threaded barrel, the two are brought close to each other. Through this alternating work, the overall movement of the device on the pipe surface is completed, and when encountering a bend in the pipe, the connection frame 1 is driven by the screw and the slide rod to rotate as a whole through the rotation of the servo motor 1, and the parallel movement process is repeated in this process, which can change the landing position of the connection frame 2, thereby achieving the effect of adjusting according to the curvature of the bend. In this process, the ultrasonic detection head detects the weld throughout the whole process, thereby avoiding manual high-altitude operations and reducing the difficulty and safety risks of weld detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the assembly structure of the integral and clean pipeline of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of a connection frame of the present invention;

[0027] Figure 4 It is a schematic diagram of the overall top view structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the sliced ​​structure of the connection frame 1 of the present invention;

[0029] Figure 6 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0030] Figure 7 For the present invention Figure 5 Enlarged structural diagram at B in the middle.

[0031] Description of reference numerals:

[0032] 001, connecting frame one; 101, U-shaped frame; 102, ultrasonic detection head; 103, controller; 104, connecting frame two; 002, driving assembly; 201, rotating seat one; 202, fixed seat; 203, screw; 204, internal threaded cylinder; 205, rotating seat two; 206, servo motor one; 207, protective cylinder; 208, sliding rod; 209, guide cylinder; 210, position sensor; 211, nut; 212, servo motor two; 003, fixing assembly; 301, connecting cavity; 302, limiting cylinder; 303, push rod; 304, limiting ring; 305, spring; 306, electromagnet. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] The present invention provides Figure 1-7A clean pipeline welding detection device shown includes a connection frame 1 001, a U-shaped frame 101 is installed on the inner wall of the connection frame 1 001, a plurality of groups of ultrasonic detection heads 102 are installed on the inner wall of the U-shaped frame 101, a controller 103 is installed on the inner wall of the connection frame 1 001, and the controller 103 is linearly connected to the plurality of groups of ultrasonic detection heads 102, a connection frame 2 104 is provided on one side of the connection frame 1 001, and the connection frame 2 104 is in the opposite direction to the opening of the connection frame 1 001, and the internal structures of the connection frame 1 001 and the connection frame 2 104 are the same;

[0035] By arranging the openings of the second connection frame 104 and the first connection frame 001 opposite to each other, the ultrasonic detection heads 102 inside the two form a closed loop, so that the welds on the surface of the clean pipeline can be detected without blind spots.

[0036] The driving component 002 is arranged outside the connection frame 1 001 and the connection frame 2 104, and is used to drive the connection frame 1 001 and the connection frame 2 104 to move along the surface of the clean pipeline;

[0037] The fixing component 003 is arranged inside the connection frame 1 001 and the connection frame 2 104 , and is used to fix the connection frame 1 001 and the connection frame 2 104 on the surface of the clean pipeline.

[0038] Furthermore, in the above structure, the driving component 002 includes a rotating seat 201, which is rotatably connected to the outside of the connecting frame 001, a fixed seat 202 is installed on one side of the rotating seat 201, a servo motor 212 is installed on one side of the fixed seat 202, and the servo motor 212 is wirelessly connected to the controller 103 via Bluetooth.

[0039] The controller 103 can control the servo motor 212 to rotate.

[0040] Furthermore, in the above structure, the side of the fixed seat 202 away from the servo motor 212 is rotatably connected to the screw 203, and the screw 203 is axially connected to the output end of the servo motor 212, and the side of the rotating seat 201 outside the connecting frame 2 104 is fixedly connected to the internal threaded tube 204, and the internal threaded tube 204 is threadedly connected to the screw 203.

[0041] The screw rod 203 rotates in the internal threaded cylinder 204 , so that the connection frame 1 001 can move closer to the connection frame 2 104 .

[0042] Furthermore, in the above structure, the side of the connecting frame 001 away from the rotating seat 201 is rotatably connected to the rotating seat 205, a servo motor 206 is installed on one side of the rotating seat 205, and the servo motor 206 is wirelessly connected to the controller 103 via Bluetooth, and a protective tube 207 is sleeved on the servo motor 206, and the protective tube 207 is connected to the rotating seat 205.

[0043] By rotating the servo motor 206 , the servo motor 206 can drive the connection frame 001 to rotate via the rotating seat 205 , or drive the servo motor 206 itself to rotate when the connection frame 001 is fixed.

[0044] Furthermore, in the above structure, a slide rod 208 is installed on one side of the protective tube 207, a guide tube 209 is installed on the outer side of the protective tube 207 on one side of the rotating seat 205 of the connecting frame 104, and the guide tube 209 is sleeved with the slide rod 208, a nut 211 is screwed on the slide rod 208, and the nut 211 is fitted with one side of the guide tube 209, and a nut 211 is also screwed on the screw rod 203, and this nut 211 is fitted with one side of the internal thread tube 204.

[0045] The setting of the guide cylinder 209 and the slide bar 208 can play an auxiliary role when the connection frame 1 001 and the connection frame 2 104 are brought closer to each other, and when the servo motor 1 206 is working, the slide bar 208 can be used to rotate the connection frame 2 104 as a whole.

[0046] Furthermore, in the above structure, a plurality of groups of position sensors 210 are installed at the edges of the connection frame 001 and the U-shaped frame 101 , and the position sensors 210 are wirelessly connected to the controller 103 via Bluetooth.

[0047] The position sensor 210 can detect the positions of the connection frame 1 001 and the connection frame 2 104 when they are close to each other, and can detect the positions of the connection frame 1 001 and the connection frame 2 104 relative to the clean pipe when they adjust their positions.

[0048] Furthermore, in the above structure, the fixing component 003 includes a connecting cavity 301, which is symmetrically opened on the inner wall of the connecting frame 001, and two groups are symmetrically opened with the center of the U-shaped frame 101 as the axis. Three groups of limiting cylinders 302 are installed on the inner wall of the connecting cavity 301 in sequence, and a push rod 303 is connected through the limiting cylinder 302. A limiting ring 304 is fixedly connected to one side of the push rod 303, and the limiting ring 304 is slidably connected to the limiting cylinder 302.

[0049] By setting the limiting ring 304 , the push rod 303 can slide within the limiting cylinder 302 .

[0050] Furthermore, in the above structure, a spring 305 is sleeved on the push rod 303, and one side of the spring 305 is in contact with the limiting ring 304, and the opposite side of the spring 305 is in contact with the inner wall of the limiting cylinder 302, and an electromagnet 306 is installed on the side of the push rod 303 away from the limiting ring 304, and the electromagnet 306 is arranged in the connecting cavity 301.

[0051] By setting the spring 305, the push rod 303 can be maintained in the position in the limit cylinder 302, and when the electromagnet 306 is adsorbed, the spring 305 will be squeezed. When the electromagnet 306 is released from adsorption, the spring 305 will reset the electromagnet 306 to avoid affecting the connection and separation of the connection frame 1 001 and the connection frame 2 104 with the surface of the clean pipe.

[0052] A clean pipeline welding detection method includes a clean pipeline welding detection device as described above, and the processing steps are specifically as follows:

[0053] S1: Connect the connection frame 1 001 and the connection frame 2 104 to the surface of the clean pipe, and insert the screw 203 and the slide bar 208 into the guide cylinder 209 of the internal thread cylinder 204;

[0054] S2: The second connection frame 104 is fixed, and the second servo motor 212 rotates, so that the first connection frame 001 moves closer to the second connection frame 104, and the whole movement is realized by alternating the first connection frame 001 and the second connection frame 104;

[0055] S3: When encountering a pipe bend, the connecting frame 1001 is fixed, and the servo motor 1 206 rotates to control the overall rotation of the connecting frame 2 104, and the servo motor 1 206 on one side of the connecting frame 2 104 rotates to accurately control the angle of the connecting frame 2 104. During this process, the ultrasonic detection head 102 detects the weld on the pipe surface.

[0056] like Figure 1-7As shown, by respectively sleeve-fitting the connection frame 1 001 and the connection frame 2 104 onto the surface of the clean pipe, and respectively passing the screw 203 and the slide bar 208 into the guide tube 209 of the internal thread tube 204, and respectively connecting the two sets of nuts 211 to the screw 203 and the slide bar 208, the connection frame 2 104 and the surface of the clean pipe are magnetically connected by the electromagnet 306, and at the same time, the servo motor 212 drives the screw 203 to rotate, so that the connection frame 1 001 moves closer to the connection frame 2 104, and after the approach, the connection frame 1 001 is fixed, and the connection frame 2 104 is loosened from the pipe surface by releasing the electromagnet 306, so that the connection frame 2 104 can continue to move along the surface of the clean pipe, and at this During the process, the ultrasonic detection head 102 detects the weld. When encountering a pipe bend, the servo motor 1 206 controls the overall rotation of the connecting frame 104 through the screw 203 and the slide bar 208 while the connecting frame 1001 is fixed and the connecting frame 104 is moved. The continuous movement of the connecting frame 104 controls the arc of its rotation, and the servo motor 1 206 on one side of the connecting frame 104 rotates to accurately control the angle of the connecting frame 104. Through this structure, the connecting frame 104 and the connecting frame 1 001 can be moved on the surface of the clean pipe, and the weld is ultrasonically detected in the process, thereby avoiding manual high-altitude operations and reducing the difficulty and safety risks of weld detection.

[0057] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A clean pipeline welding detection device, comprising a connection frame (001), characterized in that: A U-shaped frame (101) is installed on the inner wall of the connection frame one (001), and a plurality of groups of ultrasonic detection heads (102) are installed on the inner wall of the U-shaped frame (101). A controller (103) is installed on the inner wall of the connection frame one (001), and the controller (103) is linearly connected to the plurality of groups of ultrasonic detection heads (102). A connection frame two (104) is provided on one side of the connection frame one (001), and the openings of the connection frame two (104) and the connection frame one (001) are in opposite directions, and the internal structures of the connection frame one (001) and the connection frame two (104) are the same; A driving assembly (002) is arranged outside the connection frame 1 (001) and the connection frame 2 (104) and is used to drive the connection frame 1 (001) and the connection frame 2 (104) to move along the surface of the clean pipeline; The fixing assembly (003) is arranged inside the connection frame 1 (001) and the connection frame 2 (104) and is used to fix the connection frame 1 (001) and the connection frame 2 (104) on the surface of the clean pipeline.

2. A clean pipeline welding detection device according to claim 1, characterized in that: The driving assembly (002) comprises a rotating seat (201), wherein the rotating seat (201) is rotatably connected to the outside of the connecting frame (001), a fixed seat (202) is installed on one side of the rotating seat (201), a servo motor (212) is installed on one side of the fixed seat (202), and the servo motor (212) is wirelessly connected to the controller (103) via Bluetooth.

3. A clean pipeline welding detection device according to claim 2, characterized in that: The fixed seat (202) is rotatably connected to a screw rod (203) on a side away from the servo motor (212), and the screw rod (203) is axially connected to the output end of the servo motor (212). The rotating seat (201) on the outside of the connecting frame (104) is fixedly connected to an internal threaded tube (204) on one side, and the internal threaded tube (204) is threadedly connected to the screw rod (203).

4. A clean pipeline welding detection device according to claim 1, characterized in that: The connection frame 1 (001) is rotatably connected to a rotating seat 2 (205) at a side away from the rotating seat 1 (201); a servo motor 1 (206) is installed on one side of the rotating seat 2 (205); and the servo motor 1 (206) is wirelessly connected to the controller (103) via Bluetooth; a protective tube (207) is sleeved on the servo motor 1 (206), and the protective tube (207) is connected to the rotating seat 2 (205).

5. A clean pipeline welding detection device according to claim 4, characterized in that: A slide bar (208) is installed on one side of the protective tube (207), a guide tube (209) is installed on the outer side of the protective tube (207) on one side of the rotating seat 2 (205) of the connecting frame 2 (104), and the guide tube (209) is sleeved with the slide bar (208), a nut (211) is screwed on the slide bar (208), and the nut (211) is fitted with one side of the guide tube (209), and a nut (211) is also screwed on the screw rod (203), and this nut (211) is fitted with one side of the internal thread tube (204).

6. A clean pipeline welding detection device according to claim 1, characterized in that: A plurality of groups of position sensors (210) are installed at the edges of the connection frame 1 (001) and the U-shaped frame (101), and the position sensors (210) are wirelessly connected to the controller (103) via Bluetooth.

7. A clean pipeline welding detection device according to claim 1, characterized in that: The fixing assembly (003) comprises a connecting cavity (301), wherein the connecting cavity (301) is symmetrically arranged on the inner wall of the connecting frame (001), and two groups of the connecting cavities are symmetrically arranged with the center of the U-shaped frame (101) as the axis. Three groups of limiting cylinders (302) are sequentially installed on the inner wall of the connecting cavity (301), and a push rod (303) is connected through the limiting cylinder (302). A limiting ring (304) is fixedly connected to one side of the push rod (303), and the limiting ring (304) is slidably connected to the limiting cylinder (302).

8. A clean pipeline welding detection device according to claim 7, characterized in that: A spring (305) is sleeved on the push rod (303), and one side of the spring (305) is in contact with the limiting ring (304), and the opposite side of the spring (305) is in contact with the inner wall of the limiting cylinder (302). An electromagnet (306) is installed on the side of the push rod (303) away from the limiting ring (304), and the electromagnet (306) is arranged in the connecting cavity (301).

9. A clean pipeline welding detection method, comprising a clean pipeline welding detection device according to any one of claims 1 to 8, characterized in that: The processing steps are as follows: S1: Connecting the connection frame 1 (001) and the connection frame 2 (104) to the surface of the clean pipe, respectively, and inserting the screw rod (203) and the slide rod (208) into the guide tube (209) of the internal thread tube (204); S2: The second connection frame (104) is fixed, and the second servo motor (212) rotates, so that the first connection frame (001) moves closer to the second connection frame (104), and the entire movement is achieved by alternating the first connection frame (001) and the second connection frame (104); S3: When encountering a pipe bend, the connection frame 1 (001) is fixed, and the servo motor 1 (206) rotates to control the overall rotation of the connection frame 2 (104), and the servo motor 1 (206) on one side of the connection frame 2 (104) rotates to accurately control the angle of the connection frame 2 (104). During this process, the ultrasonic detection head (102) detects the weld on the surface of the pipe.

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