A pipe work piece surface defect detection device

Abstract

This invention relates to the field of pipe processing technology and provides a device for detecting surface defects in pipe workpieces. The device includes: a base plate, on which two support frames are fixedly mounted; multiple conveying rollers are rotatably mounted on the upper surfaces of both support frames; a rotating rod is fixedly mounted on one side of each of the multiple conveying rollers; a motor is fixedly mounted at one end of one of the rotating rods; the motor is fixedly mounted on one side of one of the support frames; and a water tank is fixedly mounted on the top of the base plate. In this embodiment, a bevel gear drives a meshing bevel gear two to rotate; one side of the bevel gear two drives a belt three to move via a pulley; one end of the belt three drives a long rod to rotate via a pulley; the long rod then drives a reciprocating screw to rotate; and under the limitation of a limiting rod, a circular cleaning brush reciprocates on its outer surface. The circular cleaning brush slides on the surface of the pipe, and in conjunction with the water sprayed from the water sprayer, the cleaning of the pipe is more thorough.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and in particular to a device for detecting surface defects in pipe workpieces. Background Technology

[0002] Pipes are widely used in machinery manufacturing, petrochemicals, and construction. Before leaving the factory or being used, they must undergo rigorous surface defect inspection to screen for potential cracks, scratches, dents, and other defects, thereby ensuring the structural strength and safety of the pipes. Currently, pipe surface defect inspection typically relies on automated production line equipment. However, existing pipe defect inspection devices still face the following core technical challenges in practical industrial applications: Firstly, during the initial processing, handling, and storage of pipes, their outer surface inevitably accumulates impurities such as oil, metal shavings, and dust. Existing inspection equipment often lacks an efficient surface pretreatment mechanism before defect detection, or relies solely on simple fixed brushes and static water spraying, failing to perform deep physical friction and peeling of the pipe's outer circumference, resulting in incomplete surface cleaning. More seriously, after water washing, a large amount of water stains usually remain on the pipe surface. Most existing equipment lacks a high-speed drying mechanism that operates synchronously with the conveyor line. These residual water stains directly alter the optical refractive index or electromagnetic properties of the pipe surface, severely interfering with subsequent signal acquisition by flaw detection sensors, easily leading to misjudgments or missed detections of surface defects.

[0003] Secondly, due to the slender cylindrical structure of pipes, existing testing mechanisms mostly use fixed brackets for static unidirectional or multidirectional installation of probes. This fixed detection method cannot completely cover the entire outer circumference of the pipe during straight-line transport, resulting in inherent blind spots. To achieve blind-spot-free testing, existing technologies typically require the addition of complex pipe rotation drive shafts or expensive multi-probe arrays. This not only significantly increases the mechanical complexity and manufacturing cost of the equipment, but also, in traditional equipment, the conveying, cleaning, drying, and testing mechanisms are often driven by multiple independent motors, lacking purely mechanical linkage control between systems. This leads to poor cycle time coordination between processes during continuous operation, making it difficult to guarantee overall testing efficiency and operational stability.

[0004] In summary, how to develop a pipe surface defect detection device that can achieve high-precision synchronous linkage of multiple processes with only a single power source, and also has the functions of deep reciprocating cleaning, high-speed air drying and stain removal, and circumferential dynamic scanning without dead angles, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To achieve the above objectives, the present invention employs the following technical solution: a pipe workpiece surface defect detection device, comprising: a base plate, two support frames fixedly mounted on the upper surface of the base plate, multiple conveying rollers rotatably mounted on the upper surface of each of the two support frames, a rotating rod fixedly mounted on one side of each of the multiple conveying rollers, a motor fixedly mounted on one end of one of the rotating rods, the motor fixedly mounted on one side of one of the support frames, a water tank fixedly mounted on the top of the base plate, a water pipe fixedly mounted on one side of the water tank, a water sprayer fixedly mounted on one end of the water pipe, the water sprayer being located at the bottom of the water tank, and a belt movably sleeved on the output end of the motor via a pulley.

[0006] The technical effect of adopting the above-mentioned further solution is that the motor drives the belt to move through the pulley, one end of the belt drives the large gear to rotate through the pulley, and the large gear drives the meshing small gear to rotate.

[0007] In a preferred embodiment, one end of the belt is movably sleeved on the outer surface of one of the rotating rods via a pulley, and a rotating rod is rotatably mounted on the top of the base plate.

[0008] The technical effect of adopting the above-mentioned further solution is that the motor can drive the rotating rod to rotate, the rotating rod to drive the conveyor roller to rotate, and multiple conveyor rollers are connected to the belt through pulleys, which can drive multiple conveyor rollers to rotate simultaneously in the same direction.

[0009] In a preferred embodiment, a bevel gear is fixedly installed at one end of the rotating rod three, a bevel gear two is meshed with the outer surface of the bevel gear one, and a belt three is movably sleeved on one side of the bevel gear two via a pulley.

[0010] The technical effect of adopting the above-mentioned further solution is that one end of belt one drives the rotating rod three to rotate through the pulley, belt and pulley linkage, one end of rotating rod three drives the bevel gear one to rotate, and bevel gear one drives the meshing bevel gear two to rotate.

[0011] In a preferred embodiment, a long rod is movably sleeved on the top of the belt three via a pulley, and a reciprocating screw is fixedly installed on one end of the long rod. A circular cleaning brush is movably sleeved on the outer surface of the reciprocating screw.

[0012] The technical effect of adopting the above-mentioned further solution is that one side of the bevel gear two drives the belt three to move through the pulley, and one end of the belt three drives the long rod to rotate through the pulley, and the long rod drives the reciprocating screw to rotate.

[0013] In a preferred embodiment, a limiting rod is fixedly installed on the top of the base plate, the circular cleaning brush is movably sleeved on the outer surface of the limiting rod, and a small gear is fixedly installed on the outer surface of the bevel gear.

[0014] The technical effect of adopting the above-mentioned further solution is that, under the limitation of the limiting rod, the circular cleaning brush moves back and forth on its outer surface. The circular cleaning brush slides on the surface of the pipe and cooperates with the water sprayed by the water sprayer to clean the pipe more thoroughly.

[0015] In a preferred embodiment, a hollow gear is meshed with the outer surface of the second pinion, a limit ring is fixedly installed on the top of the base plate, and the hollow gear is rotatably connected to the outer surface of the limit ring.

[0016] The technical effect of adopting the above-mentioned further solution is that when the second pinion drives the meshing hollow gear to rotate, the hollow gear drives the detection mechanism on one side to rotate. The pipe enters the center of the hollow gear through the transmission of the conveying roller. The detection mechanism rotates around the outer surface of the pipe, which can perform defect detection on its surface without dead angles.

[0017] In a preferred embodiment, a detection mechanism is fixedly installed on one side of the hollow gear, and a large gear is fixedly sleeved on the outer surface of one of the rotating rods.

[0018] The technical effect of adopting the above-mentioned further solution is that the circumference of the large gear is greater than that of the small gear, which allows the small gear to rotate faster and the blowing efficiency to be higher.

[0019] In a preferred embodiment, a small gear is meshed with the outer surface of the large gear, a rotating rod is fixedly installed on one side of the small gear, a fan is fixedly installed on one side of the rotating rod, and a belt is movably sleeved on one end of the rotating rod via a pulley.

[0020] The technical effect of adopting the above-mentioned further solution is that the fan is driven to rotate by the rotating rod two, and the water stains on the surface of the pipe can be blown away after the fan rotates.

[0021] In a preferred embodiment, a storage plate is fixedly installed on the top of the base plate.

[0022] The technical effect of adopting the above-mentioned further solution is that after testing, one end of the pipe enters the surface of another conveying roller, and is then conveyed to the upper surface of the storage plate for storage.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this embodiment of the invention, one end of the pipe is positioned on the upper surface of the conveying roller near the circular cleaning brush, and the other end is positioned inside the circular cleaning brush. The water sprayer sprays water from the water tank onto the upper surface of the pipe through the water pipe to wash away the oil and dirt on its surface. At the same time, the motor is started by an external power source. The output end of the motor drives the first belt to move through the pulley. One end of the first belt drives the rotating rod three to rotate through the pulley, the belt, and the linkage of the pulley. One end of the rotating rod three drives the first bevel gear to rotate. The first bevel gear drives the meshing bevel gear two to rotate. One side of the second bevel gear drives the third belt to move through the pulley. One end of the third belt drives the long rod to rotate through the pulley. The long rod drives the reciprocating screw to rotate. Under the limitation of the limiting rod, the circular cleaning brush moves back and forth on its outer surface. The sliding of the circular cleaning brush on the surface of the pipe and the water sprayed by the water sprayer can make the cleaning of the pipe more thorough.

[0024] 2. In this embodiment of the invention, the motor can drive the rotating rod to rotate, and the rotating rod drives the conveying roller to rotate. Multiple conveying rollers are connected to the belt through pulleys, which can drive multiple conveying rollers to rotate simultaneously in the same direction. When the conveying rollers rotate, they can drive the pipe on the upper surface to move. When the pipe moves to the side of the fan, the motor drives the belt through the pulley to move. One end of the belt drives the large gear to rotate through the pulley. The large gear drives the meshing small gear to rotate. The small gear drives the fan to rotate through the rotating rod. After the fan rotates, it can blow away the water stains on the surface of the pipe. It should be noted that the circumference of the large gear is greater than the circumference of the small gear, which can make the rotation speed of the small gear faster and the blowing efficiency higher.

[0025] 3. In this embodiment of the invention, when the second pinion drives the meshing hollow gear to rotate, the hollow gear drives the detection mechanism on one side to rotate. The pipe enters the center of the hollow gear through the transmission of the conveying roller. The detection mechanism rotates around the outer surface of the pipe, which can perform defect detection on its surface without dead angles. After detection, one end of the pipe enters the surface of another conveying roller, and then is conveyed to the upper surface of the storage plate for storage. Attached Figure Description

[0026] Figure 1 A three-dimensional structural schematic diagram of a pipe workpiece surface defect detection device provided by the present invention; Figure 2 A schematic diagram of the bevel gear connection structure of a pipe workpiece surface defect detection device provided by the present invention; Figure 3 This is a schematic diagram of the fan structure of a pipe workpiece surface defect detection device provided by the present invention; Figure 4 A schematic diagram of the ring-shaped cleaning brush structure of a pipe workpiece surface defect detection device provided by the present invention; Figure 5 This is a side view of a pipe workpiece surface defect detection device provided by the present invention.

[0027] Legend: 101. Base plate; 102. Water tank; 103. Water pipe; 104. Water sprayer; 105. Motor; 106. Belt 1; 107. Conveyor roller; 108. Rotating rod 1; 109. Large gear; 110. Small gear 1; 111. Fan; 112. Rotating rod 2; 114. Belt 2; 115. Rotating rod 3; 116. Bevel gear 1; 117. Bevel gear 2; 118. Small gear 2; 119. Hollow gear; 120. Limiting ring; 121. Detection mechanism; 122. Belt 3; 123. Long rod; 124. Reciprocating screw; 125. Limiting rod; 126. Circular cleaning brush; 127. Storage plate; 2. Support frame. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 5 This embodiment provides a technical solution: a device for detecting surface defects in pipe workpieces, comprising: a base plate 101, two support frames 2 fixedly installed on the upper surface of the base plate 101, multiple conveying rollers 107 rotatably installed on the upper surface of each of the two support frames 2, a rotating rod 108 fixedly installed on one side of each of the multiple conveying rollers 107, a motor 105 fixedly installed at one end of one of the rotating rods 108, the motor 105 fixedly installed on one side of one of the support frames 2, a water tank 102 fixedly installed on the top of the base plate 101, a water pipe 103 fixedly installed on one side of the water tank 102, a water sprayer 104 fixedly installed at one end of the water pipe 103, the water sprayer 104 being located at the bottom of the water tank 102, and a belt 106 movably sleeved on the output end of the motor 105 via a pulley.

[0030] In use, the motor 105 drives the belt 106 to move through the pulley. One end of the belt 106 drives the large gear 109 to rotate through the pulley. The large gear 109 drives the meshing small gear 110 to rotate.

[0031] like Figures 1 to 5As shown, in one embodiment, one end of belt 106 is movably sleeved on the outer surface of one of the rotating rods 108 via a pulley. A rotating rod 115 is rotatably mounted on the top of the base plate 101. The motor 105 can drive the rotating rod 108 to rotate, and the rotating rod 108 drives the conveyor roller 107 to rotate. Multiple conveyor rollers 107 are provided, and they are all connected to belt 106 via pulleys, which can drive multiple conveyor rollers 107 to rotate simultaneously in the same direction.

[0032] like Figures 1 to 5 As shown, in one embodiment, a bevel gear 116 is fixedly installed at one end of the rotating rod 115. A bevel gear 117 is meshed with the outer surface of the bevel gear 116. A belt 122 is movably sleeved on one side of the bevel gear 117 via a pulley. One end of the belt 106 drives the rotating rod 115 to rotate through the pulley, the belt, and the linkage of the pulley. One end of the rotating rod 115 drives the bevel gear 116 to rotate, and the bevel gear 116 drives the meshed bevel gear 117 to rotate.

[0033] like Figures 1 to 5 As shown, in one embodiment, a long rod 123 is movably sleeved on the top of belt 122 via a pulley. A reciprocating screw 124 is fixedly installed on one end of the long rod 123. A ring-shaped cleaning brush 126 is movably sleeved on the outer surface of the reciprocating screw 124. One side of the bevel gear 117 drives belt 122 to move via a pulley. One end of belt 122 drives the long rod 123 to rotate via a pulley, and the long rod 123 drives the reciprocating screw 124 to rotate.

[0034] like Figures 1 to 5 As shown, in one embodiment, a limiting rod 125 is fixedly installed on the top of the base plate 101, and a circular cleaning brush 126 is movably sleeved on the outer surface of the limiting rod 125. A small gear 118 is fixedly installed on the outer surface of the bevel gear 117. Under the limitation of the limiting rod 125, the circular cleaning brush 126 moves back and forth on its outer surface. The circular cleaning brush 126 slides on the surface of the pipe and cooperates with the water sprayed by the water sprayer 104 to clean the pipe more thoroughly.

[0035] like Figures 1 to 5 As shown, in one embodiment, a hollow gear 119 is meshed with the outer surface of the pinion 118. A limit ring 120 is fixedly installed on the top of the base plate 101. The hollow gear 119 is rotatably connected to the outer surface of the limit ring 120. When the pinion 118 drives the meshed hollow gear 119 to rotate, the hollow gear 119 drives the detection mechanism 121 on one side to rotate. The pipe enters the center of the hollow gear 119 through the transmission of the conveying roller 107. The detection mechanism 121 rotates around the outer surface of the pipe, which can perform defect detection on its surface without dead angles.

[0036] like Figures 1 to 5 As shown, in one embodiment, a detection mechanism 121 is fixedly installed on one side of the hollow gear 119. A large gear 109 is fixedly sleeved on the outer surface of one of the rotating rods 108. The circumference of the large gear 109 is greater than that of the small gear 110, which can make the small gear 110 rotate faster and the blowing efficiency higher.

[0037] like Figures 1 to 5 As shown, in one embodiment, a small gear 110 is meshed with the outer surface of the large gear 109. A rotating rod 112 is fixedly installed on one side of the small gear 110. A fan 111 is fixedly installed on one side of the rotating rod 112. A belt 114 is movably sleeved on one end of the rotating rod 115 through a pulley. The rotating rod 112 drives the fan 111 to rotate. After the fan 111 rotates, it can blow away water stains on the surface of the pipe.

[0038] like Figures 1 to 5 As shown, in one embodiment, a storage plate 127 is fixedly installed on the top of the base plate 101. After detection, one end of the pipe enters the surface of another conveying roller 107 and is conveyed to the upper surface of the storage plate 127 for storage.

[0039] Working principle: In use, one end of the pipe is first placed on the upper surface of the conveyor roller 107 near the circular cleaning brush 126, and the other end is placed inside the circular cleaning brush 126. The water sprayer 104 sprays water from the water tank 102 through the water pipe 103 onto the upper surface of the pipe to wash away the oil and dirt on its surface. At the same time, the motor 105 is started by an external power source. The output end of the motor 105 drives the belt 106 through the pulley. One end of the belt 106 is connected to the pulley. The belt and pulley linkage drive the rotating rod 115 to rotate. One end of the rotating rod 115 drives the bevel gear 116 to rotate. The bevel gear 116 drives the meshing bevel gear 117 to rotate. One side of the bevel gear 117 drives the belt 122 to move via the pulley. One end of the belt 122 drives the long rod 123 to rotate via the pulley. The long rod 123 drives the reciprocating screw 124 to rotate. Under the limit of the limiting rod 125, the circular cleaning brush 126 reciprocates on its outer surface. The circular cleaning brush 126 slides on the surface of the pipe, cooperating with the water sprayed by the water sprayer 104 to clean the pipe more thoroughly. The motor 105 drives the rotating rod 108 to rotate, which in turn drives the conveyor rollers 107 to rotate. Multiple conveyor rollers 107 are connected to the belt 106 via pulleys, allowing multiple conveyor rollers 107 to rotate simultaneously in the same direction. When the conveyor rollers 107 rotate, they move the pipe on the upper surface. When the pipe moves to the side of the fan 111, the electric motor... Machine 105 drives belt 106 via pulley. One end of belt 106 drives large gear 109 to rotate via pulley. Large gear 109 drives small gear 110 to rotate via meshing. Small gear 110 drives fan 111 to rotate via rotating rod 112. After fan 111 rotates, it can blow away water stains on the surface of the pipe. It should be noted that the circumference of large gear 109 is larger than the circumference of small gear 110, which allows small gear 110 to rotate faster and the blowing efficiency to be higher.

[0040] When the pinion 118 drives the meshing hollow gear 119 to rotate, the hollow gear 119 drives the detection mechanism 121 on one side to rotate. The pipe enters the center of the hollow gear 119 through the transmission of the conveying roller 107. The detection mechanism 121 rotates around the outer surface of the pipe, which can perform defect detection on its surface without dead angles. After detection, one end of the pipe enters the surface of another conveying roller 107, and then is conveyed to the upper surface of the storage plate 127 for storage.

[0041] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for detecting surface defects in pipe workpieces, comprising: The base plate (101) is characterized in that two support frames (2) are fixedly installed on the upper surface of the base plate (101), and multiple conveying rollers (107) are rotatably installed on the upper surface of the two support frames (2). A rotating rod (108) is fixedly installed on one side of each of the multiple conveying rollers (107). A motor (105) is fixedly installed at one end of one of the rotating rods (108). The motor (105) is fixedly installed on one side of one of the support frames (2). A water tank (102) is fixedly installed on the top of the base plate (101). A water pipe (103) is fixedly installed on one side of the water tank (102). A water sprayer (104) is fixedly installed at one end of the water pipe (103). The water sprayer (104) is located at the bottom of the water tank (102). A belt (106) is movably sleeved on the output end of the motor (105) through a pulley.

2. The device for detecting surface defects in pipe workpieces according to claim 1, characterized in that: One end of the belt (106) is movably sleeved on the outer surface of one of the rotating rods (108) via a pulley, and the top of the base plate (101) is rotatably mounted with a rotating rod (115).

3. The device for detecting surface defects in pipe workpieces according to claim 2, characterized in that: One end of the rotating rod three (115) is fixedly installed with a bevel gear one (116), and the outer surface of the bevel gear one (116) is meshed with a bevel gear two (117). One side of the bevel gear two (117) is movably sleeved with a belt three (122) through a pulley.

4. The device for detecting surface defects in pipe workpieces according to claim 3, characterized in that: The top of the belt three (122) is movably fitted with a long rod (123) via a pulley. A reciprocating screw (124) is fixedly installed at one end of the long rod (123). A circular cleaning brush (126) is movably fitted on the outer surface of the reciprocating screw (124).

5. The device for detecting surface defects in pipe workpieces according to claim 4, characterized in that: A limiting rod (125) is fixedly installed on the top of the base plate (101), and the circular cleaning brush (126) is movably sleeved on the outer surface of the limiting rod (125). A small gear (118) is fixedly installed on the outer surface of the bevel gear (117).

6. The device for detecting surface defects in pipe workpieces according to claim 5, characterized in that: The outer surface of the pinion 2 (118) is meshed with a hollow gear (119), and a limit ring (120) is fixedly installed on the top of the base plate (101). The hollow gear (119) is rotatably connected to the outer surface of the limit ring (120).

7. The device for detecting surface defects in pipe workpieces according to claim 6, characterized in that: A detection mechanism (121) is fixedly installed on one side of the hollow gear (119), and a large gear (109) is fixedly sleeved on the outer surface of one of the rotating rods (108).

8. The device for detecting surface defects in pipe workpieces according to claim 7, characterized in that: The outer surface of the large gear (109) is meshed with a small gear (110), and a rotating rod (112) is fixedly installed on one side of the small gear (110).

9. The device for detecting surface defects in pipe workpieces according to claim 8, characterized in that: A fan (111) is fixedly installed on one side of the rotating rod two (112), and a belt two (114) is movably sleeved on one end of the rotating rod three (115) through a pulley.

10. The device for detecting surface defects in pipe workpieces according to claim 9, characterized in that: A storage plate (127) is fixedly installed on the top of the base plate (101).

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