Device and method for distributing pieces on inner wall of butt joint circular seam of header or pipeline

Abstract

The invention relates to the technical field of circular seam detection, and particularly discloses a device and method for distributing pieces on the inner wall of a butt joint circular seam of a header or a pipeline. Comprising a pressing, guiding and fixing assembly, a pressing and supporting assembly connected with the pressing, guiding and fixing assembly in a sliding mode, an extension assembly connected with the pressing, guiding and fixing assembly, a sliding supporting assembly, a camera shooting assembly and a driving part. The driving piece is in transmission fit with the pressing and supporting assembly and is used for controlling the pressing and supporting assembly to move close to or away from one side of the inner wall of the to-be-detected product; the pressing and supporting assembly comprises a sliding piece which is in sliding fit with the pressing, guiding and fixing assembly and in transmission fit with the driving piece, a film fixing device elastically connected with the sliding piece, and a hidden bag; and a film system is arranged in the hidden bag. According to the device and the method, the inner wall of a header or a pipeline with large wall thickness and small inner diameter can be effectively distributed, so that circular seam detection is realized in a single-wall single-image transillumination mode, the detection sensitivity is greatly improved, and the detection cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of annular seam detection, and in particular to a device and method for patching annular seam inner wall panels for butt joints of headers or pipelines. Background Art

[0002] In the prior art, when using the radiation method to detect the butt annular seam of a boiler header or pipeline, according to the requirements of the NB / T47013.2-2015 standard, a double-wall single shadow method with a radiation device outside or a center transillumination method with a source inside is generally used.

[0003] However, for headers or pipes with large wall thickness (such as single wall thickness greater than 100mm) and small inner diameter (inner diameter ≤500mm), inspection personnel cannot enter the interior to carry out patching; they can only carry out patching on the outside of the butt joint of the header or pipe. During the inspection, the X-ray machine irradiates two thicknesses from the other side, but the inspection performance capability of the inspection equipment is very high, which greatly increases the inspection cost; at the same time, the double-wall single-image transmission method is used for inspection, and its detection sensitivity will be lower than the sensitivity of single-wall single-image transmission. Summary of the invention

[0004] The present invention aims to provide a device and method for lining the inner wall of the annular seam of a header or pipeline, which can effectively achieve lining the inner wall of a header or pipeline with large wall thickness (such as a single wall thickness greater than 100mm) and small inner diameter (inner diameter ≤500mm), thereby realizing annular seam detection by single-wall single-image radiography, greatly improving detection sensitivity and reducing detection costs.

[0005] The present invention is achieved by adopting the following technical solutions:

[0006] The present invention provides a device and method for butt-jointing annular seam inner wall cloth sheets of a header or a pipeline

[0007] A device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline, comprising a pressing guide fixing assembly, a pressing support assembly connected to and slidably matched with the pressing guide fixing assembly, an extension assembly coaxially connected to the pressing guide fixing assembly, a sliding support assembly sleeved on the outside of the extension assembly, a camera assembly detachably mounted on the bottom of the pressing guide fixing assembly, and a driving member having one end passing through the extension assembly and extending into the pressing guide fixing assembly; the driving member is in transmission match with the pressing support assembly and is used to control the pressing support assembly to move toward or away from the inner wall of the product to be inspected;

[0008] The clamping support assembly includes a sliding member that slidably cooperates with the clamping guide fixing assembly and transmission cooperates with the driving member, a film fixing device installed on the side of the sliding member away from the clamping support assembly and elastically connected to the sliding member, and a dark bag installed at the bottom of the film fixing device; a film system is installed in the dark bag.

[0009] In some possible implementations, the clamping guide fixing assembly includes a shell having one end coaxially connected to the extension assembly, and a plurality of support frames disposed in the shell and slidably matched with the sliding member or used to support and fix the driving member.

[0010] In some possible implementations, the sliding member includes a sliding frame with one end passing through the extension assembly and extending into the housing, and a guide frame slidably connected to the sliding frame and located outside the housing; the sliding frame slidably cooperates with the supporting frame;

[0011] One end of the guide frame away from the housing is connected to the film fixing device.

[0012] In some possible implementations, the slide frame includes a slide bar assembly slidably matched with the support frame, and a fixed block installed at the bottom of the slide bar assembly;

[0013] Each set of sliding rod assemblies includes two sets of vertical rods, and a sliding cavity is formed between the two sets of vertical rods; the driving member is located in the sliding cavity and cooperates with the vertical rods in transmission;

[0014] The guide frame comprises a slide plate which is located above the fixing block and slidably matched with the vertical rod, and a support column which is connected with the slide plate at one end and connected with the film fixing device at the other end.

[0015] In some possible implementations, the vertical rod is respectively provided with a waist-shaped long hole 1 that is slidably matched with the support frame, and a waist-shaped long hole 2 that is slidably matched with the slider and is located below the waist-shaped long hole 1; the long axis directions of the waist-shaped long hole 1 and the waist-shaped long hole 2 are arranged along the axial direction of the vertical rod;

[0016] One of the vertical rods in each set of slide rod assemblies is provided with a tooth surface that is in transmission cooperation with a driving member;

[0017] The slide plate is provided with a sliding block which is slidably matched with the second waist-shaped long hole, and a locking piece which is used for locking the sliding block and the vertical rod.

[0018] In some possible embodiments, the driving member includes a driving shaft with one end passing through the extension assembly and extending into the shell, a gear sleeved on the outside of the driving shaft and meshing with the tooth surface, and a bearing sleeved on the outside of the driving shaft and installed on the connecting frame; the driving shaft is coaxially arranged with the shell.

[0019] In some possible embodiments, the support frame includes two groups of brackets located in the shell and connected to the shell, and an installation cavity is formed between the two groups of brackets; a guide column that slides with a waist-shaped long hole is arranged in the installation cavity corresponding to the vertical rod.

[0020] In some possible embodiments, the sliding support assembly includes a sleeve 1 that is sleeved on the outside of the extension assembly, a sleeve 2 that is sleeved on the outside of the extension assembly and is located on the side of the sleeve 1 close to the clamping guide fixing assembly, a support rod having one end hinged to the sleeve 1 and the other end provided with a guide pulley, and a support rod having one end hinged to the support rod and the other end hinged to the sleeve 2.

[0021] In some possible implementations, the support rods are in multiple groups and are evenly arranged along the circumference of the sleeve, and the support rods are arranged in a one-to-one correspondence with the support rods.

[0022] A method for arranging the inner wall of the annular seam of a header or a pipeline is based on the above-mentioned device for arranging the inner wall of the annular seam of a header or a pipeline; specifically comprises the following steps:

[0023] Step S1: adjusting the sliding support assembly so that the entire device is sheathed in the header or pipeline;

[0024] Step S2: adjusting the pressing support assembly so that a gap is formed between the film fixing device and the inner wall of the product to be inspected;

[0025] Step S3: Install the camera assembly, adjust the angle of the camera assembly, and align it with the position to be detected;

[0026] Step S4: insert the device into the product to be inspected, and determine whether the film fixing device reaches the position to be inspected by using the camera assembly;

[0027] Step S5: If the position is reached, the driving member is controlled to drive the pressing support assembly to move toward the inner wall of the product to be inspected, and abut against the inner wall to make the film fit at the position to be inspected;

[0028] Step S6: Perform ray detection.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] The present invention can effectively realize the slicing of the inner wall of a header or pipe with large wall thickness (such as a single wall thickness greater than 100mm) and small inner diameter (inner diameter ≤ 500mm), thereby realizing the annular seam detection by single-wall single-image transillumination, greatly improving the detection sensitivity and reducing the detection cost;

[0031] The present invention effectively realizes the movement of the entire device inside the product to be inspected through the cooperation of the extension component and the sliding support component. When the camera component detects that the film fixing device is located at the predetermined position to be inspected, the driving component controls the pressing support component to move toward the side close to the inner wall, so that the film is pressed at the specified position, thereby realizing the annular seam inspection by single-wall single-image transillumination.

[0032] The present invention can be suitable for movement in headers or pipelines with different inner diameters by setting the sliding support assembly;

[0033] The present invention controls the movement of the pressing support assembly toward the inner wall of the annular gap through a driving member, so that the film can be effectively attached to the specified position; and cooperates with an external X-ray machine to complete the exposure of the position, thereby realizing the annular gap detection by single-wall single-image transillumination. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 It is a schematic diagram of the connection relationship between the housing, the support frame, and the pressing support assembly in the present invention;

[0036] Figure 3 It is a structural schematic diagram of the compression support assembly in the present invention;

[0037] Figure 4 It is a schematic diagram of the connection relationship between the guide frame and the film fixing device in the present invention;

[0038] Figure 5 It is a structural schematic diagram of the slide plate in the present invention;

[0039] Figure 6 It is a structural schematic diagram of the sliding support assembly in the present invention;

[0040] Figure 7 It is a schematic diagram of the connection relationship between the pressing guide fixing assembly, the pressing support assembly and the driving member in the present invention;

[0041] Figure 8 It is a schematic diagram of the structure of the housing and the support frame in the present invention;

[0042] Icons: 1. Pressing guide fixing assembly; 11. Shell; 12. Support frame; 121. Bracket; 122. Mounting cavity; 1211. Guide column; 2. Pressing support assembly; 21. Sliding member; 211. Sliding frame; 2111. Vertical rod; 21111. Waist-shaped long hole 1; 21112. Waist-shaped long hole 2; 21113. Waist-shaped long hole 3; 21114. Tooth surface; 2112. Fixing block; 212. Guide frame; 2121. Skateboard; 21211, slider; 21212, locking bolt; 2122, support column; 21221, hole; 22, film fixing device; 23, hidden bag; 24, spring; 25, screw; 3, extension assembly; 4, sliding support assembly; 41, sleeve one; 42, sleeve two; 43, support rod; 44, support rod; 45, guide pulley; 5, camera assembly; 6, driving member; 61, driving shaft; 62, gear; 63, bearing. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] like Figure 1-Figure 7 As shown,

[0045] A device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline, comprising a pressing guide fixing component 1, a pressing support component 2 connected to and slidably matched with the pressing guide fixing component 1, an extension component 3 coaxially connected to the pressing guide fixing component 1, a sliding support component 4 sleeved on the outside of the extension component 3, a camera component 5 detachably mounted on the bottom of the pressing guide fixing component 1, and a driving member 6 with one end passing through the extension component 3 and extending into the pressing guide fixing component 1; the driving member 6 is in transmission match with the pressing support component 2 and is used to control the pressing support component 2 to move toward or away from the inner wall of the product to be inspected;

[0046] The clamping support assembly 2 includes a sliding member 21 that slides with the clamping guide fixing assembly 1 and is in transmission cooperation with the driving member 6, a film fixing device 22 installed on the side of the sliding member 21 away from the clamping support assembly 2 and elastically connected to the sliding member 21, and a dark bag 23 installed at the bottom of the film fixing device 22; a T-shaped slot is provided at the bottom of the film fixing device 22, and the dark bag 23 will be installed in the T-shaped slot; a film system is installed in the dark bag 23; the film system is the prior art and includes film, an intensifying screen, and a lead plate; the film fixing group device is made of lead blocks, which are elastically connected to the sliding member 21.

[0047] When in use, first, according to the inner diameter of the header or pipeline, the positions of the sliding support assembly 4 and the extension assembly 3 are adjusted so that the entire device can be located inside the header or pipeline;

[0048] Then adjust the compression support assembly 2 so that a small gap of about 10 mm is formed between the film in the film system and the inner wall of the header or pipe;

[0049] Then, the device is installed inside the header or pipeline and moved axially inside the header or pipeline, and the image information of the positional relationship between the film fixing device 22 inside the header or pipeline and the position to be detected is transmitted through the camera assembly 5;

[0050] When the film fixing device 22 reaches the position to be detected, it stops moving, and the driving member 6 controls the sliding member 21 to slide relative to the pressing guide fixing assembly 1, so that the film on the film fixing device 22 is pressed and adhered to the position to be detected, and the film operation is completed; then, the X-ray machine outside the header or pipeline is used to expose the film to achieve detection;

[0051] The film fixing device 22 is used for installing and fixing the dark bag 23 and the sliding member 21. The driving member 6 controls the sliding member 21 to move toward the inner wall of the header or the pipe, so as to achieve the film in the film system being attached to the position to be detected;

[0052] The elastic connection between the film fixing device 22 and the sliding member 21 will ensure that the film can be in good contact with the position to be detected when the film is laid;

[0053] The present invention can effectively realize the slicing of the inner wall of a header or pipeline with large wall thickness (such as a single wall thickness greater than 100mm) and small inner diameter (inner diameter ≤500mm), thereby realizing annular seam detection by single-wall single-image radiography, greatly improving detection sensitivity and reducing detection costs.

[0054] In some possible implementations, in order to effectively compress the sliding fit between the guide fixing assembly 1 and the sliding member 21;

[0055] The clamping guide fixing assembly 1 includes a shell 11 coaxially connected to the extension assembly 3 at one end, and a plurality of support frames 12 arranged in the shell 11 and slidingly matched with the sliding member 21 or used to support and fix the driving member 6.

[0056] Multiple groups of support frames 12 are arranged along the axial direction of the shell 11, wherein some of the support frames 12 are slidably matched with the sliding member 21, and the sliding direction thereof is perpendicular to the axial direction of the shell 11; another part of the support frames 12 is used to support and fix the driving member 6, and the driving member 6 rotates around the axial direction of the shell 11 to drive the film fixing device 22 connected to the sliding member 21 to approach or move away from the position to be detected, so that the film in the film fixing device 22 is pressed against the inner wall of the header or the pipeline;

[0057] In some possible implementations, such as Figure 1-Figure 4 As shown, the sliding member 21 includes a sliding frame 211 with one end passing through the extension assembly 3 and extending into the housing 11, and a guide frame 212 slidably connected to the sliding frame 211 and located outside the housing 11; the sliding frame 211 is slidably matched with the support frame 12;

[0058] One end of the guide frame 212 away from the housing 11 is elastically connected to the film fixing device 22;

[0059] One end of the slide 211 extends into the housing 11 to slide with the support frame 12 and is slidably connected with the guide frame 212; a through hole is provided at the bottom of the housing 11 for one end of the slide 211 to pass through; a through hole corresponding to the through hole is provided at the top of the housing 11, thereby effectively ensuring the sliding of the slide 211 and making the installation of the bracket 121 simpler and faster;

[0060] The driving member 6 cooperates with the slide 211 in transmission, so that the slide 211 moves closer to or away from the inner wall of the header or the pipe, driving the guide frame 212 and the film fixing device 22 connected to the guide frame 212 to move;

[0061] The sliding connection between the slide 211 and the guide frame 212 is for adjusting the position of the film fixing device 22 according to the inner diameter of the collection box or the pipeline before use, so that the entire device can enter the interior of the collection box or the pipeline; after the guide frame 212 and the slide 211 are adjusted into place, the two can be locked.

[0062] In some possible implementations, such as Figure 3 As shown, the slide 211 includes a slide bar assembly that slidably cooperates with the support frame 12, and a fixed block 2112 installed at the bottom of the slide bar assembly;

[0063] Each set of sliding rod assemblies includes two sets of vertical rods 2111, and a sliding cavity is formed between the two sets of vertical rods 2111; the driving member 6 is located in the sliding cavity and cooperates with the vertical rods 2111 in transmission;

[0064] One side of the sliding cavity has a tooth surface 21114 for transmission cooperation with the driving member 6 and the other side is a plane;

[0065] One end of the vertical rod 2111 extends into the housing 11 and slides with the corresponding support frame 12, and the other end of the vertical rod 2111 is installed on the fixed block 2112, so that all the vertical rods 2111 and the fixed block 2112 are connected to form a whole;

[0066] The guide frame 212 includes a slide plate 2121 located above the fixing block 2112 and slidably matched with the vertical rod 2111, and a support column 2122 connected to the slide plate 2121 at one end and elastically connected to the film fixing device 22 at the other end;

[0067] Preferably, a hole 21221 is provided at one end of the support column 2122 away from the slide plate 2121, a slot is provided on the film fixing device 22 for inserting the end of the support column 2122 away from the slide plate 2121, the hole 21221 is located in the slot, and a hole is provided on the film fixing device 22 that is connected to the slot and penetrates through the slot, and the connection between the film fixing device 22 and the support column 2122 is achieved by a screw 25;

[0068] like Figure 4As shown, the hole 21221 on the support column 2122 is a waist-shaped hole, and the long direction of the waist-shaped hole is arranged along the axial direction of the support column 2122. The screw 25 will pass through the waist-shaped hole, and a spring 24 is arranged at the bottom of the support column 2122. The axial direction of the spring 24 is arranged along the axial direction of the support column 2122, and the other end of the spring 24 is connected to the bottom of the slot; thereby effectively realizing the elastic connection between the support column 2122 and the film fixing device 22, so that the film fixing device 22 has a certain elastic activity space, ensuring that when the cloth is laid, the film can be in good contact with the position to be detected.

[0069] In some possible implementations, such as Figure 3 As shown, the vertical rod 2111 is respectively provided with a waist-shaped long hole 1 21111 which is slidably matched with the support frame 12, and a waist-shaped long hole 21112 which is slidably matched with the slider 21211 and is located below the waist-shaped long hole 1 21111; the long axis directions of the waist-shaped long hole 1 21111 and the waist-shaped long hole 21112 are arranged along the axial direction of the vertical rod 2111;

[0070] One of the vertical rods 2111 in each set of slide rod assemblies is provided with a tooth surface 21114 that is in transmission cooperation with the driving member 6; the tooth surface 21114 will be located in the sliding cavity;

[0071] The slide plate 2121 is provided with a slider 21211 that slidably cooperates with the second waist-shaped long hole 21112, and a locking member for locking the slider 21211 and the vertical rod 2111;

[0072] The slide plate 2121 is located above the fixed block 2112 and is slidably matched with the vertical rod 2111. A slider 21211 is provided on the outside of the slide plate 2121. The slider 21211 is located in the second waist-shaped long hole 21112, thereby realizing a sliding guide that slides axially along the vertical rod 2111.

[0073] like Figure 5 As shown, the locking member includes a waist-shaped long hole 3 21113 which is arranged on the vertical rod 2111 and the long axis direction is arranged axially along the vertical rod 2111, and a locking bolt 21212 which has one end passing through the waist-shaped long hole 3 21113 and connected to the slider 21211; the waist-shaped long hole 3 21113 and the waist-shaped long hole 2 21112 are arranged correspondingly and are connected to each other, so that the end of the locking bolt 21212 can pass through the waist-shaped long hole 3 21113 and abut against the slider 21211 to achieve locking and fixing;

[0074] When in use, connect the vertical rod 2111 to the support frame 12, and then adjust the positional relationship between the guide frame 212 and the slide 211 according to the inner diameter of the collection box or the pipeline, so that the entire device can be fully inserted into the collection box or the pipeline after adjustment, and make the gap between the film fixing device 22 and the inner wall of the collection box or the pipeline be 10mm, and then use the locking bolt 21212 to fix the slide 21211 and the vertical rod 2111 to achieve locking.

[0075] In some possible implementations, such as Figure 7 As shown, in order to effectively realize the approach or distance between the header or the pipeline by driving the sliding member 21 through the driving member 6; the driving member 6 includes a driving shaft 61 with one end passing through the extension assembly 3 and extending into the housing 11, a gear 62 sleeved on the outside of the driving shaft 61 and meshing with the tooth surface 21114, and a bearing 63 sleeved on the outside of the driving shaft 61 and installed on the connecting frame; the driving shaft 61 is coaxially arranged with the housing 11;

[0076] The extension assembly 3 includes a housing, and the drive shaft 61 will also be rotatably matched with the housing through a bearing 63;

[0077] The drive shaft 61 is coaxially arranged with the housing 11. The housing 11 and the extension assembly 3 are both cylindrical. The extension assembly 3 is composed of several groups. When in use, the extension can be performed according to the length of the header or the pipeline. The length of the drive shaft 61 is adjusted according to the length of the header or the pipeline, and the end thereof away from the housing 11 will be located outside the housing 11, thereby realizing the operation of laying sheets on the header or the pipeline.

[0078] When the sliding member 21 slides, the driving shaft 61 is manually controlled to rotate around its axial direction, thereby driving the gear 62 to rotate. Since the gear 62 is meshed with the tooth surface 21114, the driving shaft 61 is fixed in the shell 11 through the bearing 63 and the corresponding support frame 12, so that the vertical rod 2111 will move along its axial direction, and the film fixing device 22 connected to the sliding member 21 will move along the axial direction of the vertical rod 2111; when the film installed on the film fixing device 22 is pressed tightly at the position to be detected, the rotation of the driving shaft 61 is stopped to complete the cloth operation.

[0079] In some possible implementations, such as Figure 2 , Figure 6 , Figure 8 As shown, in order to effectively realize the support and fixation of the driving member 6 and the sliding cooperation of the vertical rod 2111; the support frame 12 includes two groups of brackets 121 located in the shell 11 and connected to the shell 11, and a mounting cavity 122 is formed between the two groups of brackets 121; a guide column 1211 that slides with the waist-shaped long hole 1 21111 is arranged in the mounting cavity 122 corresponding to the vertical rod 2111;

[0080] Preferably, the guide column 1211 is integrally formed with the bracket 121; the guide column 1211 is sleeved in the waist-shaped long hole 1 21111; when the driving member 6 controls the vertical rod 2111 to slide along its length direction, the setting of the guide column 1211 will effectively guide the moving direction of the vertical rod 2111;

[0081] The bearing 63 is clamped and fixed by the corresponding bracket 121 , so that the entire driving member 6 and the housing 11 form a whole, and the driving shaft 61 can rotate around its axial direction in the housing 11 .

[0082] In some possible implementations, in order to enable the sliding support assembly 4 to effectively support the device after the device is installed in the header or pipeline, and to make the axial axis of the shell 11 coaxial with the axis of the header or pipeline; Figure 5 As shown, the sliding support assembly 4 includes a sleeve 1 41 sleeved on the outside of the extension assembly 3, a sleeve 2 42 sleeved on the outside of the extension assembly 3 and located on the side of the sleeve 1 41 close to the pressing guide fixing assembly 1, a support rod 43 hinged to the sleeve 1 41 at one end and provided with a guide pulley 45 at the other end, and a support rod 44 hinged to the support rod 43 at one end and hinged to the sleeve 2 42 at the other end; the hinge point between the support rod 44 and the support rod 43 is set in the middle of the support rod 43;

[0083] During installation, the sleeve 1 41 or the sleeve 2 42 is fixedly connected to the extension component 3, and the sleeve 2 42 or the sleeve 1 41 can slide on the outside of the extension component 3;

[0084] When in use, the angle formed by the support rod 43 and the axis of the shell 11 is adjusted according to the inner diameter of the header or pipeline. After meeting the requirements, the sleeve 2 42 or the sleeve 1 41 is fixed to the extension component 3; at this time, the guide pulley 45 will contact and abut the header or pipeline, and can move along the axial direction of the shell 11 under the action of external force, and the guide pulley 45 will reduce sliding friction;

[0085] In some possible implementations, the support rods 43 are multiple groups and are evenly arranged along the circumference of the sleeve 41, and the support rods 44 are arranged one by one corresponding to the support rods 43;

[0086] like Figure 6 As shown, there are three groups of support rods 43 and struts 44 in each group of sliding support assemblies 4, which are arranged in one-to-one correspondence and hinged to each other, the other end of the support rod 43 is connected to the sleeve 1 41, and the other end of the support rod 43 is hinged to the sleeve 2 42; the three groups of support rods 43 have the same length, and the three groups of struts 44 have the same length, so that the shell 11 is coaxially arranged with the header or pipeline.

[0087] Furthermore, the camera assembly 5 is detachably connected to the bottom of the housing 11. After the film is pressed against the position to be detected, the camera assembly 5 is separated from the housing 11 by pulling the connecting wire at one end of which is connected to the camera assembly 5 and the other end is located outside the header or pipe, and the camera assembly 5 is withdrawn and taken out.

[0088] In order to prevent the camera assembly 5 from being damaged due to collision when being withdrawn, an anti-collision sponge is added to the camera assembly.

[0089] A method for arranging the inner wall of the annular seam of a header or a pipeline is based on the above-mentioned device for arranging the inner wall of the annular seam of a header or a pipeline; specifically comprises the following steps:

[0090] Step S1: adjusting the sliding support assembly 4 so that the entire device is sleeved in the header or pipeline and is coaxially arranged with the header or pipeline;

[0091] Step S2: adjusting the pressing support assembly 2 so that a gap is formed between the film fixing device 22 and the inner wall of the product to be inspected;

[0092] Step S3: installing the camera assembly 5, adjusting the angle of the camera assembly 5, and making the camera assembly 5 able to align with the position to be detected;

[0093] Step S4: insert the device into the product to be inspected, and determine whether the film fixing device 22 reaches the position to be inspected through the image information transmitted by the camera assembly 5;

[0094] Step S5: If it is reached, the control driving member 6 drives the pressing support assembly 2 to move to the side close to the inner wall of the product to be inspected, and abuts against the inner wall so that the film is attached to the position to be inspected;

[0095] Step S6: Perform ray detection.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, 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 device for butt-jointing the inner wall cloth of the annular seam of a header or pipeline, characterized in that: It includes a pressing guide fixing component, a pressing support component connected to and slidingly matched with the pressing guide fixing component, an extension component coaxially connected to the pressing guide fixing component, a sliding support component sleeved on the outside of the extension component, a camera component detachably mounted on the bottom of the pressing guide fixing component, and a driving member with one end passing through the extension component and extending into the pressing guide fixing component; the driving member is in transmission match with the pressing support component and is used to control the pressing support component to move closer to or away from the inner wall of the product to be inspected; The clamping support assembly includes a sliding member that slidably cooperates with the clamping guide fixing assembly and transmission cooperates with the driving member, a film fixing device installed on the side of the sliding member away from the clamping support assembly and elastically connected to the sliding member, and a dark bag installed at the bottom of the film fixing device; a film system is installed in the dark bag.

2. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 1, characterized in that: The clamping guide fixing assembly comprises a shell having one end coaxially connected to the extension assembly, and a plurality of support frames arranged in the shell and slidingly cooperating with the sliding member or used for supporting and fixing the driving member.

3. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 2, characterized in that: The sliding member includes a sliding frame having one end passing through the extension assembly and extending into the housing to slide with the support frame, and a guide frame slidably connected to the sliding frame and located outside the housing; One end of the guide frame away from the housing is connected to the film fixing device.

4. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 3 is characterized in that: The slide frame includes a slide bar assembly that is slidably matched with the support frame, and a fixed block installed at the bottom of the slide bar assembly; Each set of sliding rod assemblies includes two sets of vertical rods, and a sliding cavity is formed between the two sets of vertical rods; the driving member is located in the sliding cavity and cooperates with the vertical rods in transmission; The guide frame comprises a slide plate which is located above the fixing block and slidably matched with the vertical rod, and a support column which is connected with the slide plate at one end and connected with the film fixing device at the other end.

5. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 4, characterized in that: The vertical rod is respectively provided with a waist-shaped long hole 1 which is slidably matched with the support frame, and a waist-shaped long hole 2 which is slidably matched with the slider and is located below the waist-shaped long hole 1; the long axis directions of the waist-shaped long hole 1 and the waist-shaped long hole 2 are arranged along the axial direction of the vertical rod; One of the vertical rods in each set of slide rod assemblies is provided with a tooth surface that is in transmission cooperation with a driving member; The slide plate is provided with a sliding block which is slidably matched with the second waist-shaped long hole, and a locking piece which is used for locking the sliding block and the vertical rod.

6. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 5, characterized in that: The driving member includes a driving shaft with one end passing through the extension assembly and extending into the shell, a gear sleeved on the outside of the driving shaft and meshing with the tooth surface, and a bearing sleeved on the outside of the driving shaft and installed on the connecting frame; the driving shaft is coaxially arranged with the shell.

7. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 4, characterized in that: The support frame includes two groups of brackets located in the shell and connected to the shell, and a mounting cavity is formed between the two groups of brackets; a guide column slidingly matched with a waist-shaped long hole is arranged in the mounting cavity corresponding to the vertical rod.

8. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 1, characterized in that: The sliding support assembly includes a sleeve 1 which is sleeved on the outside of the extension assembly, a sleeve 2 which is sleeved on the outside of the extension assembly and is located on the side of the sleeve 1 close to the clamping guide fixing assembly, a support rod which is hinged to the sleeve 1 at one end and has a guide pulley at the other end, and a support rod which is hinged to the support rod at one end and has the other end hinged to the sleeve 2.

9. The device for butt-jointing the inner wall cloth of the annular seam of a header or a pipeline according to claim 8, characterized in that: The support rods are in multiple groups and are evenly arranged along the circumference of the sleeve, and the support rods are arranged in a one-to-one correspondence with the support rods.

10. A method for butt-jointing annular seam inner wall fabrics of headers or pipelines, characterized in that: A device for butt-jointing the inner wall of the annular seam of a header or a pipeline according to any one of claims 1 to 9; The specific steps include: Step S1: adjusting the sliding support assembly so that the entire device is sheathed in the header or pipeline; Step S2: adjusting the pressing support assembly so that a gap is formed between the film fixing device and the inner wall of the product to be inspected; Step S3: Install the camera assembly, adjust the angle of the camera assembly, and align it with the position to be detected; Step S4: insert the device into the product to be inspected, and determine whether the film fixing device reaches the position to be inspected by using the camera assembly; Step S5: If the position is reached, the driving member is controlled to drive the pressing support assembly to move toward the inner wall of the product to be inspected, and abut against the inner wall to make the film fit at the position to be inspected; Step S6: Perform ray detection.

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