A device for detecting surface defects of pipe fittings

Abstract

The present invention discloses a device for detecting surface defects of pipe fittings, which belongs to the technical field of surface defect detection. The device for detecting surface defects of pipe fittings comprises a base, a bottom frame and a mounting frame are provided on the base, an adjustment component for locating the position of a bent pipe or a straight pipe is movably provided on the bottom frame, a first movable component symmetrically and movably provided with a movably connected to the adjustment component is provided on the bottom frame, a second movable component located above the adjustment component is installed on the mounting frame, a transmission component is provided between the adjustment component and the second movable component, a camera is installed on the second movable component, and a controller electrically connected to an electrical device in the device is provided on the outer side of the mounting frame. The device has the advantages of flexible movement, meeting the positioning requirements of pipe fittings of different lengths, shapes and specifications, efficient and comprehensive detection, reliable structure, convenient operation, and simple and practical use.

Description

Technical Field

[0001] The present invention relates to the technical field of surface defect detection, and in particular to a device for detecting surface defects of pipe fittings. Background Art

[0002] Pipe fittings are a general term for components in piping systems that perform functions such as connection, control, direction change, flow diversion, sealing, and support. Pipe fittings are widely used in various piping systems, such as water supply, drainage, gas, thermal, and industrial piping systems. They play a key role in these systems, providing connection, control, direction change, flow diversion, sealing, and support. Pipe fittings include welded fittings, threaded fittings, ferrule fittings, clamp fittings, socket fittings, adhesive-bonded fittings, hot-melt fittings, curved-elastic double-melt fittings, and fittings with rubber ring connections. To ensure the performance of pipe fittings, they must be inspected for defects such as indentations and cracks.

[0003] In the prior art, a device for detecting surface defects of pipe fittings with patent number CN118730901A includes a base plate, a rotating block is coaxially arranged at the center of the base plate, and a rotating device for driving the rotating block to rotate is arranged on one side of the rotating block; a plurality of pipe fixtures are evenly distributed along the circumference on the outside of the rotating block, and the pipe fixtures are rotatably connected to the outer side of the rotating block; a pipe support portion is circumferentially slidably arranged on the top of the base plate, and the pipe support portion and the pipe fixture are respectively arranged at the two ends of the pipe fitting; a moving device is provided on one side of the top of the rotating block, and a visual inspection camera is provided on the moving end of the moving device, and the moving device is used to drive the visual inspection camera to move along the axial direction of the pipe fitting; a linkage is provided between the moving device and the pipe fixture, and when the moving device is in operation, the linkage drives the pipe fixture to rotate around the axis of the pipe fitting; the present invention can continuously and efficiently perform high-precision visual inspection on multiple pipe fittings, which not only ensures the accuracy of pipe surface defect detection, but also improves the efficiency of pipe surface defect detection.

[0004] However, the above content still has the following defects:

[0005] 1. The pipe fixture clamps the pipe, making it impossible to detect surface defects in the area where the pipe surface and the pipe fixture meet. This creates a blind spot and reduces detection accuracy.

[0006] 2. The device can only detect surface defects of straight pipes, but cannot effectively detect surface defects of bent pipes, and has low applicability.

[0007] Therefore, it is necessary to provide a device for detecting surface defects of pipe fittings to solve the above problems. Summary of the Invention

[0008] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide a device for detecting surface defects of pipe fittings to solve the problems in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A device for detecting surface defects of pipe fittings, comprising a base, a bottom frame and a mounting frame provided on the base, and further comprising:

[0011] An adjustment component, the adjustment component is movably arranged on the bottom frame, and the adjustment component is used to locate the position of the curved pipe or the straight pipe;

[0012] a first movable assembly, the first movable assembly being symmetrically and movably disposed on the bottom frame, and the first movable assembly being movably connected to the adjustment assembly;

[0013] a second moving assembly mounted on the mounting frame and located above the adjusting assembly;

[0014] a transmission assembly, the transmission assembly being disposed between the adjustment assembly and the second moving assembly;

[0015] a camera mounted on the second mobile assembly;

[0016] and a controller, which is arranged on the outside of the mounting frame and is electrically connected to the electrical equipment in the device.

[0017] As a further solution of the present invention, the first moving component includes:

[0018] A bidirectional screw, the bidirectional screw being rotatably arranged on the inner side of the bottom frame and being connected to a motor mounted on the bottom frame;

[0019] A first movable seat, wherein the first movable seat is symmetrical and threadedly connected to the bidirectional screw;

[0020] A guide rod 1, wherein the guide rod 1 is connected to the inside of the bottom frame;

[0021] A second movable seat, wherein the second movable seat is symmetrically and slidably disposed at both ends of the guide rod;

[0022] and a connecting rod, wherein the connecting rod is connected between the corresponding moving seat 1 and the moving seat 2.

[0023] As a further solution of the present invention, the adjustment component includes:

[0024] A rotating drum rotatably mounted on a connecting rod;

[0025] A placement seat, the placement seat is movably arranged on the rotating drum, and a rotating seat is rotatably connected between the rotating drum and the placement seat;

[0026] A slide rod, the slide rod being symmetrical and slidably disposed on the placement seat;

[0027] A connecting plate connected to one end of the symmetrically arranged sliding rod close to the middle of the base;

[0028] A spring connected between the connecting plate and the placement seat and sleeved on the outside of the slide rod;

[0029] A side plate connected to an end of the slide bar away from the connecting plate;

[0030] A rotating rod, the rotating rod being rotatably mounted on the side plate, one end of the rotating rod being close to each other being connected to a positioning seat movably abutting against the inner side of the end of the curved pipe or the straight pipe, and the other end of the rotating rod being connected to a second bevel gear;

[0031] and a second motor, wherein the second motor is mounted on the side plate, and an output end of the second motor is connected to a first bevel gear meshing with a second bevel gear.

[0032] As a further solution of the present invention, the second moving component includes:

[0033] A movable screw rod is rotatably mounted on a mounting frame, and one end of the movable screw rod is connected to a three-phase motor mounted on the mounting frame;

[0034] And a moving seat three, the moving seat three is threadedly connected to the moving screw, and the top of the moving seat three is slidably matched with a sliding groove two arranged on the mounting frame.

[0035] As a further solution of the present invention, the transmission assembly includes:

[0036] A second guide rod, wherein the second guide rod is arranged on the mounting frame;

[0037] A sliding seat, the sliding seat is symmetrically and slidably arranged on the guide rod 2, the symmetrically arranged sliding seats are respectively located on both sides of the movable seat 3, and the sliding seat is slidably matched with the sliding groove 1 arranged on the mounting frame;

[0038] A reversing switch is provided on one side of the sliding seats that are close to each other and is in active contact with the moving seats;

[0039] A movable slot plate, the movable slot plate being installed at the bottom of the second guide rod;

[0040] and a movable rod, which is slidably arranged in the movable slot plate and connected with the side plate.

[0041] As a further solution of the present invention, the movable base 3 is further provided with a fill light and a fan corresponding to the camera, and the fill light and the fan are both electrically connected to the controller.

[0042] As a further solution of the present invention, the positioning seat is configured to be in a truncated cone shape.

[0043] As a further solution of the present invention, a concave placement arc groove is provided on the upper side of the placement seat.

[0044] As a further solution of the present invention, a counterweight plate is further provided at the bottom of the rotating drum.

[0045] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0046] 1. In the present invention, according to different lengths of curved or straight pipes, the first movable assembly adaptively clamps the two ends of the curved or straight pipe by adjusting the spacing between the symmetrically arranged adjusting assemblies. The angle of the curved or straight pipe can be rotated by the adjusting assembly. The second movable assembly drives the camera to move in the horizontal direction to shoot the upper surface of the curved or straight pipe, and transmits the shooting data to the controller, which displays the shooting results. At the same time, the adjusting assembly cooperates with the transmission assembly, and the transmission assembly cooperates with the second movable assembly to realize the reciprocating movement of the camera in the horizontal direction of a certain length. It can realize the corresponding shooting processing of the upper surface of the curved or straight pipe after the curved or straight pipe is rotated to a certain angle, which is convenient for comprehensive inspection of the curved or straight pipe.

[0047] 2. In the present invention, the movable base 3 drives the camera to perform corresponding reciprocating movement by abutting against the reversing switch. At the same time, the controller controls the motor 2 to drive the bevel gear 1 to rotate a certain angle, so that the bend or straight pipe rotates 90 degrees, thereby adjusting the shooting area of the camera. Through the intermittent 90-degree rotation of the bend or straight pipe and the horizontal reciprocating movement of the camera, the surface of the bend or straight pipe can be fully and efficiently inspected, avoiding blind spots in the inspection of the bend or straight pipe and improving the inspection accuracy of the bend or straight pipe;

[0048] 3. In the present invention, the start and stop of the fill light and the fan can be controlled by the controller. The fill light can be used to fill in the light of the pipe during the shooting process to avoid the inability to effectively shoot the surface of the pipe due to insufficient light. The fan can blow away dust or debris adhering to the pipe to avoid dust or debris adhering to the surface of the pipe and affecting the detection accuracy.

[0049] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a schematic diagram of the overall structure of the bend pipe detection disclosed in the present invention.

[0051] Figure 2 This is a front cross-sectional view of the present invention.

[0052] Figure 3 This is a schematic structural diagram of the first moving component and the adjusting component disclosed in the present invention.

[0053] Figure 4 This is a schematic structural diagram of the transmission assembly and the second moving assembly disclosed in the present invention.

[0054] Figure 5 This is a schematic structural diagram of the regulating assembly disclosed in the present invention.

[0055] Figure 6 This is a structural schematic diagram of the mobile seat 1 disclosed in the present invention.

[0056] Figure 7 This is a schematic diagram of the overall structure of the straight tube detection disclosed in the present invention.

[0057] Figure 1: 1. Base; 2. Bottom frame; 3. Mounting frame; 4. First moving assembly; 41. Motor 1; 42. Bidirectional screw; 43. Moving seat 1; 44. Connecting rod; 45. Guide rod 1; 46. Moving seat 2; 5. Adjusting assembly; 51. Rotating drum; 52. Counterweight plate; 53. Rotating seat; 54. Placement seat; 541. Placement arc groove; 55. Sliding rod; 56. Connecting plate; 57. Spring; 58. Side plate; 59. Motor 2; 510. Bevel gear Wheel one; 511, bevel gear two; 512, rotating rod; 513, positioning seat; 6, bent pipe; 7, transmission assembly; 71, movable slot plate; 72, sliding seat; 73, guide rod two; 74, slide one; 75, reversing switch; 76, movable rod; 8, second movable assembly; 81, motor three; 82, moving screw; 83, moving seat three; 84, slide two; 9, controller; 10, camera; 11, fill light; 12, fan; 13, straight pipe. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0059] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0060] Example 1:

[0061] See Figure 1-Figure 7As shown, the present invention is a device for detecting surface defects of pipe fittings, comprising a base 1, a bottom frame 2 and a mounting frame 3 provided on the base 1, an adjustment component 5 for locating the position of the bent pipe 6 or the straight pipe 13 movably provided on the bottom frame 2, a first movable component 4 movably connected to the adjustment component 5 symmetrically and movably provided on the bottom frame 2, a second movable component 8 located above the adjustment component 5 installed on the mounting frame 3, a transmission component 7 provided between the adjustment component 5 and the second movable component 8, a camera 10 installed on the second movable component 8, and a controller 9 electrically connected to the electrical equipment in the device provided on the outside of the mounting frame 3.

[0062] Specifically, according to different lengths of the curved pipe 6 or straight pipe 13, the first moving component 4 adaptively clamps the two ends of the curved pipe 6 or straight pipe 13 by adjusting the spacing between the symmetrically arranged adjusting components 5. The angle of the curved pipe 6 or straight pipe 13 can be rotated by the adjusting component 5. The second moving component 8 drives the camera 10 to move in the horizontal direction to shoot the upper surface of the curved pipe 6 or straight pipe 13, and transmits the shooting data to the controller 9, which displays the shooting results. At the same time, the adjusting component 5 cooperates with the transmission component 7 and the transmission component 7 cooperates with the second moving component 8 to realize the reciprocating movement of the camera 10 in the horizontal direction of a certain length, so that the upper surface of the curved pipe 6 or straight pipe 13 can be photographed accordingly after the curved pipe 6 or straight pipe 13 is rotated to a certain angle, so as to facilitate comprehensive inspection of the curved pipe 6 or straight pipe 13. It has the advantages of flexible movement, meeting the positioning requirements of pipe fittings of different lengths, shapes and specifications, efficient and comprehensive inspection, reliable structure, convenient operation and simple and practical effects.

[0063] The bottom frame 2 is configured as a C-shaped frame, and the mounting frame 3 is configured as an L-shaped frame, so as to facilitate stable support of the transmission assembly 7 and the second moving assembly 8 .

[0064] In the first embodiment of the present invention, the first moving assembly 4 includes a bidirectional screw 42 rotatably mounted on the inner side of the bottom frame 2, the bidirectional screw 42 being connected to a motor 1 41 mounted on the bottom frame 2, a moving seat 1 43 being symmetrically and threadedly connected to the bidirectional screw 42, a guide rod 1 45 being connected to the interior of the bottom frame 2, a moving seat 2 46 being symmetrically and slidably mounted at both ends of the guide rod 1 45, and a connecting rod 44 being connected between the corresponding moving seats 1 43 and 46;

[0065] The adjusting assembly 5 includes a rotating drum 51 rotatably arranged on the connecting rod 44, and a placing seat 54 is movably provided on the rotating drum 51, and a rotating seat 53 is rotatably connected between the rotating drum 51 and the placing seat 54, and a sliding rod 55 is symmetrically and slidably provided on the placing seat 54. The symmetrically arranged sliding rod 55 is connected to a connecting plate 56 at one end near the middle of the base 1, and a spring 57 is connected between the connecting plate 56 and the placing seat 54, and the end of the sliding rod 55 away from the connecting plate 56 is connected to a side plate 58, and a rotating rod 512 is rotatably provided on the side plate 58. The end of the rotating rod 512 close to each other is connected to a positioning seat 513 that movably abuts against the inner end of the bend pipe 6 or the straight pipe 13. The other end of the rotating rod 512 is connected to a bevel gear 2 511, and a motor 2 59 is installed on the side plate 58. The output end of the motor 2 59 is connected to a bevel gear 1 510 that meshes with the bevel gear 2 511.

[0066] Specifically, the position between the symmetrically arranged rotating seat 53 and the connecting plate 56 is adjusted accordingly according to the length and shape of the pipe to be tested. When the elbow 6 needs to be clamped, the motor 1 41 drives the bidirectional screw 42 to rotate. The bidirectional screw 42 drives the connecting rod 44 to approach each other by threaded connection with the moving seat 1 43 and sliding cooperation between the moving seat 2 46 and the guide rod 1 45. The connecting rod 44 drives the rotating drum 51 to move synchronously to achieve the synchronous approach of the placement seat 54, pull the side plate 58 outward, and the side plate 5 8 drives the connecting plate 56 close to the placement seat 54 by connecting with the slide rod 55, and the spring 57 is stressed and contracts, placing the two ends of the bent pipe 6 on the corresponding placement seats 54 respectively. The side plates 58 are released, and the spring 57 extends and pushes the connecting plate 56 away from the placement seat 54. The connecting plate 56 drives the side plates 58 close to the placement seat 54 by connecting with the slide rod 55. The placement seat 54 drives the rotating rod 512 to move synchronously so that the positioning seat 513 abuts against the inner side of the end of the bent pipe 6, thereby clamping the position of the bent pipe 6;

[0067] The placing seat 54 drives the positioning seat 513 to abut against the inner side of the end of the straight tube 13 by driving the rotating rod 512 to move synchronously, thereby clamping the position of the straight tube 13;

[0068] When the curved pipe 6 or the straight pipe 13 needs to be rotated to a certain angle, the second motor 59 drives the first bevel gear 510 to rotate. The first bevel gear 510 engages with the second bevel gear 511, and the positioning seat 513 abuts against the end of the curved pipe 6 or the straight pipe 13, driving the curved pipe 6 or the straight pipe 13 to rotate to a corresponding angle. This facilitates the camera 10 to shoot the surface of the curved pipe 6 or the straight pipe 13 at different angles in the longitudinal direction, thereby achieving comprehensive inspection of the pipe fittings and improving the inspection accuracy of the pipe fittings.

[0069] Among them, the positioning seat 513 is set to be truncated cone-shaped, which can adaptively clamp the two ends of the curved pipes 6 or straight pipes 13 of different calibers. The upper side of the placement seat 54 is provided with an inwardly concave placement arc groove 541, which is convenient for effectively supporting the outer wall of the curved pipe 6 or straight pipe 13. Through the cooperation of the placement arc groove 541 and the rotating seat 53, the curved pipe 6 or straight pipe 13 is convenient for circumferential rotation. The motor 1 41 and the motor 2 59 are both electrically connected to the controller 9. The bottom of the rotating drum 51 is also provided with a counterweight plate 52. The set counterweight plate 52 can ensure that the placement seat 54 is in a horizontal state when the device stops working.

[0070] In the first embodiment of the present invention, the second moving assembly 8 includes a moving screw 82 rotatably mounted on the mounting frame 3, one end of the moving screw 82 is connected to a third motor 81 mounted on the mounting frame 3, a third moving seat 83 is threadedly connected to the moving screw 82, and the top of the third moving seat 83 is slidably engaged with a second slide groove 84 provided on the mounting frame 3;

[0071] The transmission assembly 7 includes a guide rod 2 73 arranged on the mounting frame 3, and a sliding seat 72 is symmetrically and slidably provided on the guide rod 2 73. The symmetrically arranged sliding seats 72 are respectively located on both sides of the moving seat 3 83. A reversing switch 75 that is movably abutted against the moving seat 3 83 is provided on the side where the sliding seats 72 are close to each other. The sliding seat 72 is slidably matched with the slide groove 1 74 arranged on the mounting frame 3. A moving groove plate 71 is installed at the bottom of the guide rod 2 73, and a movable rod 76 connected to the side plate 58 is slidably provided in the moving groove plate 71.

[0072] Specifically, in the process of fixing the position of the bent pipe 6 or the straight pipe 13, the movable rod 76 moves synchronously with the movement of the side plate 58. The movable rod 76 drives the symmetrically arranged sliding seats 72 to move closer to or away from each other by slidingly cooperating with the movable groove plate 71, the sliding seat 72 and the second guide rod 73, and the sliding seat 72 and the first slide groove 74.

[0073] In the process of detecting the surface of the curved pipe 6 or the straight pipe 13, the motor three 81 drives the moving screw 82 to rotate clockwise, and the moving screw 82 drives the moving seat three 83 to move to the right by being threadedly connected to the moving seat three 83 and slidingly cooperating with the sliding groove 2 84. When the moving seat three 83 contacts the reversing switch 75 on the right, the reversing switch 75 is pressed and transmits a signal to the controller 9. The controller 9 controls the motor three 81 to rotate counterclockwise, and the motor three 81 drives the moving screw 82 to rotate counterclockwise, and the moving screw 82 drives the moving seat three 83 to move to the left by being threadedly connected to the moving seat three 83 and slidingly cooperating with the sliding groove 2 84. In the process of the moving seat three 83 moving to the left, the camera 10 can shoot and process the surface just above the curved pipe 6 or the straight pipe 13, and transmit the shooting data to the controller 9, so as to realize the detection and processing of a certain area on the surface of the curved pipe 6 or the straight pipe 13;

[0074] When the movable seat three 83 contacts the reversing switch 75 on the left, the reversing switch 75 is pressed and transmits a signal to the controller 9, which controls the motor three 81 to rotate clockwise, and the motor three 81 drives the movable screw 82 to rotate clockwise. The movable screw 82 drives the movable seat three 83 to move to the right by being threadedly connected with the movable seat three 83 and slidingly cooperating with the slide groove two 84. At the same time, the controller 9 controls the motor two 59 to drive the bevel gear one 510 to rotate a certain angle. The bevel gear one 510 drives the curved pipe 6 or the straight pipe 13 to rotate 90 degrees clockwise by being engaged with the bevel gear two 511 and the positioning seat 513 abutting against the curved pipe 6 or the straight pipe 13, thereby adjusting the shooting area of the camera 10;

[0075] When the movable seat three 83 contacts the reversing switch 75 on the right side again, the controller 9 receives the signal and controls the motor three 81 to rotate counterclockwise. At this time, the controller 9 controls the motor two 59 to drive the bevel gear one 510 to rotate a certain angle again, so that the curved pipe 6 or the straight pipe 13 rotates 90 degrees clockwise again, which can meet the detection requirements of the surface of the curved pipe 6 or the straight pipe 13 in this area. Through the intermittent 90-degree rotation of the curved pipe 6 or the straight pipe 13 and the horizontal reciprocating movement of the camera 10, the surface of the curved pipe 6 or the straight pipe 13 can be comprehensively and efficiently detected, avoiding blind spots in the detection of the curved pipe 6 or the straight pipe 13 and improving the detection accuracy of the curved pipe 6 or the straight pipe 13.

[0076] Example 2:

[0077] See Figure 1-Figure 7 In the second embodiment of the present invention, the movable base 83 is further provided with a fill light 11 and a fan 12 corresponding to the camera 10 , and the fill light 11 and the fan 12 are both electrically connected to the controller 9 .

[0078] Specifically, the controller 9 can be used to control the start and stop of the fill light 11 and the fan 12. The fill light 11 can be used to fill in the light of the pipe during the shooting process to avoid the inability to effectively shoot the surface of the pipe due to insufficient light. The fan 12 can be used to blow away dust or debris adhering to the pipe surface to avoid dust or debris adhering to the pipe surface and affecting the detection accuracy.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting surface defects of pipe fittings, comprising a base, characterized in that: The base is provided with a bottom frame and a mounting frame, and further comprises: The adjusting assembly is movably arranged on the bottom frame, and the adjusting assembly is used to position the bent pipe or straight pipe; the adjusting assembly includes a rotating drum, a placing seat, a sliding rod, a connecting plate, a spring, a rotating rod and a motor, the rotating drum is rotatably arranged on the connecting rod, the placing seat is movably arranged on the rotating drum, and a rotating seat is rotatably connected between the rotating drum and the placing seat, the sliding rod is symmetrical and slidably arranged on the placing seat, the connecting plate is connected to one end of the symmetrically arranged sliding rod close to the middle of the base, the spring is connected between the connecting plate and the placing seat and sleeved on the outer side of the sliding rod, the rotating rod is rotatably arranged on the side plate, one end of the rotating rod close to each other is connected to a positioning seat movably abutted against the inner end of the bent pipe or straight pipe end, the other end of the rotating rod is connected to a bevel gear second, the motor second is installed on the side plate, the output end of the motor second is connected to a bevel gear one meshing with the bevel gear second; A first moving assembly, wherein the first moving assembly is symmetrically and movably arranged on the bottom frame, and the first moving assembly is movably connected to the adjustment assembly; the first moving assembly includes a bidirectional screw, a moving seat 1, a guide rod 1, a moving seat 2 and a connecting rod, wherein the bidirectional screw is rotatably arranged on the inner side of the bottom frame, the bidirectional screw is connected to a motor 1 installed on the bottom frame, the moving seat 1 is symmetrical and threadedly connected to the bidirectional screw, the guide rod 1 is connected to the inside of the bottom frame, the moving seat 2 is symmetrical and slidably arranged at both ends of the guide rod 1, and the connecting rod is connected between the corresponding moving seat 1 and moving seat 2; a second moving assembly mounted on the mounting frame and located above the adjusting assembly; a transmission assembly, the transmission assembly being disposed between the adjustment assembly and the second moving assembly; a camera mounted on the second mobile assembly; and a controller, which is arranged on the outside of the mounting frame and is electrically connected to the electrical equipment in the device.

2. The device for detecting surface defects of pipe fittings according to claim 1, characterized in that: The second moving component includes: A movable screw rod is rotatably mounted on a mounting frame, and one end of the movable screw rod is connected to a three-phase motor mounted on the mounting frame; And a moving seat three, the moving seat three is threadedly connected to the moving screw, and the top of the moving seat three is slidably matched with a sliding groove two arranged on the mounting frame.

3. The device for detecting surface defects of pipe fittings according to claim 2, characterized in that: The transmission assembly comprises: A second guide rod, wherein the second guide rod is arranged on the mounting frame; A sliding seat, the sliding seat is symmetrically and slidably arranged on the guide rod 2, the symmetrically arranged sliding seats are respectively located on both sides of the movable seat 3, and the sliding seat is slidably matched with the sliding groove 1 arranged on the mounting frame; A reversing switch is provided on one side of the sliding seats that are close to each other and is in active contact with the moving seats; A movable slot plate, the movable slot plate being installed at the bottom of the second guide rod; and a movable rod, which is slidably arranged in the movable slot plate and connected with the side plate.

4. The device for detecting surface defects of pipe fittings according to claim 2, characterized in that: The movable base 3 is also provided with a fill light and a fan corresponding to the camera, and the fill light and the fan are both electrically connected to the controller.

5. The device for detecting surface defects of pipe fittings according to claim 1, characterized in that: The positioning seat is configured in a truncated cone shape.

6. The device for detecting surface defects of pipe fittings according to claim 1, characterized in that: An inwardly concave placement arc groove is provided on the upper side of the placement seat.

7. The device for detecting surface defects of pipe fittings according to claim 1, characterized in that: A counterweight plate is also provided at the bottom of the rotating drum.

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