A pipe surface detection method

Abstract

The embodiment of the present invention discloses a pipe surface inspection method, comprising the following steps: S1, batch storage of pipes to be inspected; S2, sorting the pipes to be inspected into a single row and discharging them one by one through an inclined guide; S3, transferring the pipes to be inspected produced in step S2 to a pipe inspection position one by one through an eccentric rotary drive in a top-feed manner; S4, rotating the pipes to be inspected at the inspection position and synchronously completing inspections of the outer circumference and both ends of the pipes to be inspected; S5, classifying and discharging qualified and unqualified pipes to be inspected. This method realizes the automated feeding, inspection, and discharging of the pipes to be inspected one by one, with high work continuity, effectively improving work efficiency, and greatly reducing the labor intensity of staff. At the same time, the surface inspection of the pipes to be inspected is highly consistent and accurate.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe detection, and in particular relates to a pipe surface detection method. Background Art

[0002] At present, after the pipe is formed through a series of processes, the outer surface of the pipe needs to be inspected one by one. The current inspection method is: the staff checks the pipes one by one with the naked eye, or the staff manually transfers the pipes to the inspection equipment and rotates the pipes to inspect the outer surface. For example, the patent number CN202020851246.0 is named "A Surface Inspection Device for Galvanized Steel Pipes", which discloses a surface inspection device. However, the surface inspection device can only inspect a single pipe, and the inspection efficiency is relatively low. The pipe needs to be manually fed into the fixture, and the pipe cannot be rotated, so it is not suitable for full inspection. Therefore, it is necessary to design a mechanized equipment that integrates the above processes into one to solve the problems of high labor intensity of workers, low efficiency of inspection work, and poor inspection consistency and accuracy during manual inspection. Summary of the Invention

[0003] The embodiment of the present invention provides a pipe surface detection method to realize automatic detection of the pipe to be detected, thereby achieving the purpose of reducing labor, improving work efficiency, and ensuring detection consistency and detection accuracy.

[0004] To solve the above technical problems, the technical solution of the embodiment of the present invention is: a pipe surface detection method, comprising the following steps:

[0005] S1. Bulk stock of pipes to be tested;

[0006] S2. The pipes to be tested are arranged in a single row and are fed one by one in an inclined manner;

[0007] S3, using an eccentric rotary drive to move the pipes to be inspected in step S2 one by one to the pipe inspection position in a top-feeding manner;

[0008] S4. Rotate the pipe to be inspected at the inspection position and simultaneously complete the inspection of the outer circumference and both ends of the pipe to be inspected;

[0009] S5. Classify and discharge the qualified and unqualified pipes to be tested.

[0010] As an improvement, in step S2, the pipes to be inspected are arranged in a single row by ensuring that the feeding space is no larger than the outer diameters of two pipes to be inspected, and the feeding space can be adjusted according to the pipe diameters.

[0011] As an improvement, in step S2, the pipes to be inspected are alternately discharged in a blocking manner and discharged into the discharge trough by two groups of discharge and blocking structures moving on the X-axis and the Z-axis. The specific method is: first, the first group of the discharge and blocking structures is used to block the pipe to be inspected at the first discharge position. At the same time, the second group of the discharge and blocking structures moves on the X-axis and the Z-axis to block the pipe to be inspected at the second discharge position. Then, the first group of the discharge and blocking structures moves on the Z-axis. At this time, the pipe to be inspected at the first discharge position slides into the discharge trough. Then, the first group of the discharge and blocking structures moves on the X-axis and the Z-axis and blocks the pipe to be inspected at the third discharge position. Then, according to the above process, the continuous discharge of the pipes to be inspected is completed one by one.

[0012] As a further improvement, in step S3, the specific method of pushing one pipe at a time is as follows: the eccentric rotation drive drives the pushing component provided with multiple feeding troughs to perform a rotational movement, that is, moving toward the discharge trough position, moving upward, moving toward the pipe detection position, and moving downward. In the process of moving toward the discharge trough position, the pushing component will move to the bottom of the pipe to be detected in the discharge trough, and receive the pipe to be detected in the discharge trough through the feeding trough. Afterwards, in the upward movement, the pushing component lifts the pipe to be detected in the discharge trough and moves toward the pipe detection position. In the downward movement, the pipe to be detected is transferred to the pipe detection position. According to the above process, the transfer of the pipes to be detected to the pipe detection position is completed one by one.

[0013] As a further improvement, in the process of transferring the pipe inspection position, it also includes a temporary storage process and an ejection process after the pipe to be inspected is inspected, specifically: the pushing component is provided with three feeding troughs, and in the process of the pushing component moving downward, the pipe to be inspected in the feeding trough will first be transferred to the temporary storage trough, and then, in the downward rotation movement cycle, the first two feeding troughs of the pushing component will simultaneously lift up the pipe to be inspected in the discharge trough and the pipe to be inspected in the temporary storage trough, and then, the discharge trough The pipes to be inspected in the discharge trough are transferred to the temporary storage trough, and the pipes to be inspected in the temporary storage trough are simultaneously transferred to the pipe inspection position; thereafter, in the next rotary motion cycle, the three feeding troughs on the pushing component work simultaneously, that is, the pipes to be inspected in the discharge trough are transferred to the temporary storage trough, and the pipes to be inspected in the temporary storage trough are simultaneously transferred to the pipe inspection position, and the pipes to be inspected in the pipe inspection position are simultaneously ejected and discharged after inspection, and then the cycle operation is carried out according to the process of the three feeding troughs working simultaneously.

[0014] As a further improvement, during the eccentric rotation drive, in order to ensure the working stability and accuracy of the pushing component, the pushing component is guided by the guide groove to perform a rotational motion. At the same time, through bidirectional sliding on the X-axis and Z-axis, the requirements of the rotational motion are met.

[0015] As a further improvement, in step S5, the qualified and unqualified pipes are discharged through the same discharge path. The qualified pipes are directly guided out through the inclined surface, and the unqualified pipes are provided with a drop hole on the discharge path, and a liftable sealing plate is provided at the position of the drop hole.

[0016] As a further improvement, before discharging, the pushing component pushes out the pipe to be inspected at the pipe detection position, and a discharging blocking process is provided. After that, the discharging blocking component moves along the Y-axis, and the pipe to be inspected breaks away from the discharging blocking component and enters the discharging path.

[0017] As an improvement, in step S4, the rotation of the pipe to be inspected is supported by the support wheels at both ends of the pipe to be inspected, and at the same time, the power-driven pressure roller rotates and applies a rotational friction force to the pipe to be inspected, driving the pipe to be inspected to rotate;

[0018] The pressing position and height of the pressing roller can be adjusted on the Y axis and the Z axis respectively.

[0019] As an improvement, before step S1, the support width of the batch loading position of the pipes to be inspected and the width of the inspection position are synchronously adjusted according to the length of the pipes to be inspected;

[0020] During the process of discharging the material in step S2 and discharging the material in step S5, both ends of the pipe to be inspected are blocked synchronously, and the blocking position can be adjusted according to the length of the pipe to be inspected.

[0021] After adopting the above technical solution, the effects of the embodiment of the present invention are:

[0022] Since the pipe surface inspection method includes the following steps: S1, batch storage of pipes to be inspected; S2, combing the pipes to be inspected into a single row, and discharging the pipes to be inspected one by one by an inclined guiding method; S3, moving the pipes to be inspected that come out of step S2 to the pipe inspection position one by one by a top feeding method through an eccentric rotation drive method; S4, rotating the pipes to be inspected at the inspection position, and synchronously completing the inspection of the outer peripheral surface and both ends of the pipes to be inspected; S5, classifying and discharging the pipes to be inspected that are qualified and unqualified, the pipe surface inspection method is adopted to realize the automatic feeding, inspection and discharging of the pipes to be inspected one by one, with high work continuity, effectively improving work efficiency, and greatly reducing the labor intensity of staff. At the same time, the inspection consistency and inspection accuracy of the surface inspection of the pipes to be inspected are high.

[0023] Since in step S2, the pipes to be tested are arranged in a single row by ensuring that the feeding space is no larger than the outer diameters of two pipes to be tested, and the feeding space can be adjusted according to the pipe diameters, the feeding space provides conditions for the pipes to be tested to be arranged in a single row, and can meet the needs of pipes to be tested with different diameters.

[0024] Since in step S2, the pipes to be inspected are alternately blocked and discharged into the discharge trough by two groups of discharge blocking structures moving on the X-axis and the Z-axis, the specific method is: first, the first group of discharge blocking structures is used to block the pipe to be inspected at the first discharge position, and at the same time, the second group of discharge blocking structures moves on the X-axis and the Z-axis to block the pipe to be inspected at the second discharge position, and then the first group of discharge blocking structures moves on the Z-axis. At this time, the pipe to be inspected at the first discharge position slides into the discharge trough, and then the first group of discharge blocking structures moves on the X-axis and the Z-axis and blocks the pipe to be inspected at the third discharge position. Then, according to the above process, the continuous discharge of the pipes to be inspected is completed one by one, so that through this discharge method, the discharge continuity is strong and the discharge rhythm is compact.

[0025] Since in step S3, the specific method of pushing one by one is: the eccentric rotation drive drives the pushing component provided with multiple feeding troughs to perform a rotational movement, that is, moving to the discharge trough position, moving upward, moving to the pipe detection position, and moving downward. In the process of moving to the discharge trough position, the pushing component will move to the bottom of the pipe to be detected in the upper discharge trough, and receive the pipe to be detected in the discharge trough through the feeding trough. Afterwards, in the upward movement, the pushing component lifts the pipe to be detected in the discharge trough and moves to the pipe detection position. In the downward movement, the pipe to be detected is transferred to the pipe detection position. According to the above process, the transfer of the pipes to be detected to the pipe detection position is completed one by one, thereby completing the transfer of the pipes to be detected from the discharge trough to the detection position in the above manner, and the one-by-one transfer effect is good.

[0026] Since the process of transferring the pipe to the inspection position also includes a temporary storage process and an ejection process after the inspection of the pipe to be inspected, specifically: the pushing component is provided with three feeding troughs. During the downward movement of the pushing component, the pipe to be inspected in the feeding trough will first be transferred to the temporary storage trough. Afterwards, during the downward rotation movement cycle, the first two feeding troughs of the pushing component will simultaneously lift up the pipe to be inspected in the discharge trough and the pipe to be inspected in the temporary storage trough. Afterwards, the pipe to be inspected in the discharge trough will be transferred to the temporary storage trough and synchronously The pipes to be inspected in the temporary storage tank are transferred to the pipe inspection position; thereafter, in the next rotary motion cycle, the three feeding troughs on the pushing component work simultaneously, namely: the pipes to be inspected in the discharge trough are transferred to the temporary storage tank, the pipes to be inspected in the temporary storage tank are simultaneously transferred to the pipe inspection position, and the pipes to be inspected in the pipe inspection position are simultaneously ejected and discharged after inspection. Then, the cycle operation is carried out according to the process of the three feeding troughs working simultaneously, thereby ensuring the continuity and connection of the transfer work of the pipes to be inspected through the above method.

[0027] During the eccentric rotation drive, in order to ensure the working stability and accuracy of the pushing component, the pushing component is guided by the guide groove to perform a rotational motion. At the same time, the two-way sliding on the X-axis and Z-axis caters to the needs of the rotational motion. Therefore, the two-way sliding not only does not affect the rotational motion of the pushing component, but also effectively ensures the linearity and reliability of the pushing component during operation, thereby achieving the working stability and accuracy of the pushing component in transferring the pipe to be inspected.

[0028] Since in step S5, the qualified and unqualified pipes are discharged through the same discharge path, the qualified pipes are directly guided out through the inclined surface, and for the unqualified pipes, a drop hole is set on the discharge path, and a liftable sealing plate is provided at the position of the drop hole, thereby realizing the separate discharge of qualified and unqualified products on the same path.

[0029] Because before discharging, the pushing component pushes out the pipe to be inspected at the pipe detection position, and a discharging blocking process is provided, after which the discharging blocking component moves along the Y-axis, and the pipe to be inspected breaks away from the discharging blocking component and enters the discharging path, so that the pushing component pushes out the pipe to be inspected after inspection and blocks it through the discharging blocking component, and then the discharging blocking component releases the blocking component to ensure the discharging posture of the pipe to be inspected.

[0030] Because in step S4, the rotation of the pipe to be inspected is supported by the supporting wheels at both ends of the pipe to be inspected, and at the same time, the power-driven pressure roller rotates and applies a rotational friction force to the pipe to be inspected to drive the pipe to be inspected to rotate; the rolling position and height of the pressure roller can be adjusted on the Y-axis and Z-axis respectively, so that the pipe to be inspected is driven to rotate by the cooperation of the pressure roller and the supporting wheels, which provides conditions for comprehensive inspection of the circumference of the pipe to be inspected.

[0031] Because before step S1, the support width of the batch loading position of the pipes to be inspected and the width of the inspection position are synchronously adjusted according to the length of the pipes to be inspected; during the discharge process of step S2 and the discharging process of step S5, the two ends of the pipes to be inspected are blocked synchronously, and the blocking position can be adjusted according to the length of the pipes to be inspected, so as to meet the inspection requirements of pipes to be inspected of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the accompanying drawings and examples.

[0033] Figure 1 It is a structural diagram of an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the rack;

[0035] Figure 3 yes Figure 2 Structural diagram from another angle;

[0036] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle unloading rack, the pipe combing and unloading mechanism, and the eccentric rotating synchronous power mechanism;

[0037] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle unloading rack and the pipe combing and unloading mechanism;

[0038] Figure 6 yes Figure 5 Schematic diagram of the structure of the medium pipe combing and unloading mechanism;

[0039] Figure 7 It is a structural diagram of the coordination of the pipe inspection support frame, the pipe rotation drive mechanism, the frame opening adjustment mechanism and the pipe discharging mechanism;

[0040] Figure 8 yes Figure 7 Structural diagram from another angle;

[0041] Figure 9 This is a schematic diagram of the structure of the pipe inspection support frame and the upper pressure roller of the pipe rotation drive mechanism;

[0042] Figure 10 yes Figure 4 Schematic diagram of the structure after removing the tube combing and tube-by-tube feeding mechanism;

[0043] Figure 11 yes Figure 10 Schematic diagram of the structure on one side;

[0044] Figure 12 yes Figure 11 Schematic diagram of the structure after removing the drive shaft and motor;

[0045] Figure 13 yes Figure 12 Structural diagram from another angle;

[0046] Among them, 1-frame; 101-detection element; 102-bottom plate; 103-slider; 104-slide plate; 105-combing plate; 106-first linear drive element; 107-second linear drive element; 108-gear bar; 109-slide rail; 2-pipe to be detected; 3-push plate; 301-material trough; 4-material discharge support plate; 401-material discharge trough; 402-pipe guide plate; 403-material discharge baffle; 404-support plate; 405-support wheel; 406-first material guide slope; 407-material retention plate; 408-pipe retention trough; 409-second material guide slope; 410-avoidance groove; 5-driving arm; 501-driving Driving shaft; 502-motor; 503-belt transmission mechanism; 504-driving guide plate; 505-guide groove; 506-long hole; 507-roller; 508-connecting shaft; 509-first slider; 510-slide rail; 511-second slider; 512-slide rail; 6-connecting arm; 601-connecting plate; 602-slide seat; 603-slide table; 604-mounting seat; 605-driving element; 606-pressure roller; 7-mounting plate; 701-discharging rack; 702-discharging guide plate; 703-discharging baffle; 704-blocking plate; 705-third linear driving element; 706-fourth linear driving element; 707-receiving and unloading baffle. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below through specific examples.

[0048] For ease of understanding, the length direction of the rack 1 is defined as the X-axis, the width direction of the rack 1 is defined as the Y-axis, and the height direction of the rack 1 is defined as the Z-axis.

[0049] A pipe surface detection method comprises the following steps:

[0050] S1. The pipes 2 to be tested are stored in batches. Before storage, the support width of the batch loading position of the pipes 2 to be tested and the width of the testing position are synchronously adjusted according to the length of the pipes 2 to be tested;

[0051] S2. The pipes 2 to be tested are arranged in a single row and fed one by one in an inclined manner. Specifically, the pipes 2 to be tested are arranged in a single row in such a manner that the feeding space is no larger than the outer diameters of two pipes 2 to be tested, and the feeding space can be adjusted according to the pipe diameter.

[0052] S3, by means of eccentric rotation drive, the pipes 2 to be inspected in step S2 are moved one by one to the pipe inspection position in a top-feeding manner;

[0053] S4. The pipe 2 to be inspected at the inspection position is rotated, and the outer circumference and both ends of the pipe 2 to be inspected are inspected simultaneously. In this embodiment, the support wheels 405 support both ends of the pipe 2 to be inspected. At the same time, the pressure roller 606 driven by a power (i.e., the driving element 605) rotates and applies a rotational friction force to the pipe 2 to drive the pipe 2 to rotate. The pressing position and height of the pressure roller 606 can be adjusted on the Y axis and Z axis respectively.

[0054] S5. Classify and discharge qualified and unqualified pipes to be tested;

[0055] During the process of discharging the material in step S2 and discharging the material in step S5, both ends of the pipe to be inspected are blocked synchronously, and the blocking position can be adjusted according to the length of the pipe to be inspected.

[0056] In step S2, two groups of discharge and blocking structures moving on the X-axis and the Z-axis are used to alternately block the discharge of the pipes 2 to be inspected and discharge them into the discharge trough 401. The specific method is: first, the first group of discharge and blocking structures is used to block the pipe 2 to be inspected at the first discharge position. At the same time, the second group of the discharge and blocking structures moves on the X-axis and the Z-axis to block the pipe 2 to be inspected at the second discharge position. Then, the first group of discharge and blocking structures moves on the Z-axis. At this time, the pipe 2 to be inspected at the first discharge position slides into the discharge trough 401. Then, the first group of discharge and blocking structures moves on the X-axis and the Z-axis and blocks the pipe 2 to be inspected at the third discharge position. Then, according to the above process, the continuous discharge of the pipes 2 to be inspected is completed one by one.

[0057] In step S3, the specific method of pushing one pipe at a time is as follows: the eccentric rotation drive drives the pushing component provided with multiple feeding troughs to perform a rotational movement, that is, moving to the position of the discharge trough 401, moving upward, moving to the pipe detection position, and moving downward. In the process of moving to the position of the discharge trough 401, the pushing component will move to the bottom of the pipe to be detected in the upper discharge trough 401, and pass the feeding trough to receive the pipe 2 to be detected in the discharge trough 401. Afterwards, in the upward movement, the pushing component lifts the pipe 2 to be detected in the discharge trough 401 and moves to the pipe detection position. In the downward movement, the pipe 2 to be detected is transferred to the pipe detection position. According to the above process, the transfer of the pipe 2 to be detected to the pipe detection position is completed one by one.

[0058] Preferably, the process of transferring the pipe to the inspection position also includes a temporary storage process and an ejection process after the inspection of the pipe 2 to be inspected, specifically: three feeding troughs are provided on the pushing component. During the downward movement of the pushing component, the pipe 2 to be inspected in the feeding trough will first be transferred to the temporary storage trough. Then, during the downward rotation movement cycle, the first two feeding troughs of the pushing component will simultaneously lift the pipe 2 to be inspected in the discharge trough 401 and the pipe 2 to be inspected in the temporary storage trough. After that, the pipe 2 in the discharge trough 401 will be ejected. The pipe 2 to be inspected is transferred to the temporary storage tank, and the pipe 2 to be inspected in the temporary storage tank is simultaneously transferred to the pipe inspection position; thereafter, in the next rotary motion cycle, the three feeding troughs on the pushing component work simultaneously, that is, the pipe 2 to be inspected in the discharge trough 401 is transferred to the temporary storage tank, and the pipe 2 to be inspected in the temporary storage tank is simultaneously transferred to the pipe inspection position, and the pipe 2 to be inspected in the pipe inspection position is simultaneously ejected and discharged after inspection, and then the cycle operation is carried out according to the process of the three feeding troughs working simultaneously.

[0059] In the eccentric rotation drive process of our party, in order to ensure the working stability and accuracy of the pushing component, the pushing component performs a rotational motion through the guidance of the guide groove. At the same time, it meets the needs of rotational motion through bidirectional sliding on the X-axis and Z-axis.

[0060] In step S5, the classified discharge of qualified and unqualified pipes is carried out through the same discharge path. Qualified pipes are directly guided out through the inclined surface, and for unqualified pipes, a drop hole is set on the discharge path, and a liftable sealing plate 704 is provided at the drop hole position. Before discharging, the pushing component pushes out the pipe 2 to be inspected at the pipe inspection position, and a discharge blocking process is provided. Afterwards, the discharge blocking component moves along the Y axis, and the pipe 2 to be inspected is separated from the discharge blocking component and enters the discharge path.

[0061] like Figures 1 to 13As shown together, the surface detection equipment for the pipe to be detected used to implement the above-mentioned pipe surface detection method includes a frame 1, on which a feeding rack is installed along the Y-axis for sliding adjustment (for realizing batch storage of the pipes 2 to be detected in step S1), and a pipe combing and feeding mechanism is installed along the Y-axis for sliding adjustment on the frame 1 located just above the feeding rack (for realizing combing the pipes 2 to be detected in step S2 into a single row and feeding the pipes one by one by an inclined guide); a pipe detection support frame is provided on the feeding rack downstream of the pipe combing and feeding mechanism (i.e., the pipe detection position mentioned in step S3), and the feeding rack is provided with an eccentric rotating synchronous The step power mechanism (i.e., the eccentric rotation drive mentioned in step S3) is driven by the eccentric rotation synchronous power mechanism to transfer the pipes 2 to be tested on the unloading rack one by one to the push plate 3 on the pipe detection support rack (i.e., the push component; used to realize the pipe pushing mentioned in step S3); a frame opening adjustment mechanism is provided between the frame 1 and the pipe detection support rack (used to realize the synchronous adjustment of the batch feeding position of the pipes 2 to be tested-the support width of the unloading rack and the detection position-the width of the pipe detection support rack in step S1), and a pipe rotation drive mechanism is provided between the frame opening adjustment mechanism and the pipe detection support rack (used to realize the mentioned step S4) The pipe 2 to be inspected rotates), and the pipe inspection support frames at both ends of the pipe rotation drive mechanism and the pipe combing and discharging mechanism are provided with detection elements 101 facing the pipe 2 to be inspected (for realizing the detection of the outer peripheral surface and both ends of the pipe 2 to be inspected mentioned in step S4). In this solution, the detection element 101 is a camera; a pipe discharging mechanism is provided between the frame opening adjustment mechanism and the frame 1 (for realizing the classification and discharging of qualified and unqualified pipes mentioned in step S5). Based on the above structure, during operation of the pipe surface inspection method, a plurality of pipes to be inspected are placed in batches on the discharging rack, and then, The pipes to be inspected are sorted and discharged one by one through the pipe combing and discharging mechanism. After that, the pipes to be inspected are transferred one by one to the pipe inspection support frame by the push plate driven by the eccentric rotating synchronous power mechanism. After that, the single pipe to be inspected is driven to rotate by the pipe rotation drive mechanism, and the surface inspection of the pipe to be inspected (including the outer peripheral surface and both ends of the pipe to be inspected) is completed by the inspection element during the rotation. After that, the inspected pipe to be inspected is output by the pipe discharging mechanism; before the above work, the width of the material rack and the pipe inspection support frame is adjusted by the frame opening adjustment mechanism to meet the inspection requirements of pipes of different lengths to be inspected. In summary, the pipe surface inspection method realizes the mechanized feeding, inspection and discharging of the pipes to be inspected one by one, with high work continuity, effectively improving work efficiency and greatly reducing the labor intensity of staff. At the same time, the surface inspection of the pipe to be inspected has high inspection consistency and inspection accuracy.

[0062] The unloading rack includes a bottom plate 102 fixedly mounted on the frame 1, two unloading support plates 4 arranged at intervals on the bottom plate 102 and slidably mounted on the bottom plate 102 along the Y-axis via a slide rail 109, the top of the unloading support plate 4 is provided with an unloading slope (not shown in the figure) that is inclined downward and faces the direction of the pipe detection support frame, and a unloading trough 401 is provided on the unloading support plate 4 at the lower end of the unloading slope; a pipe guide plate 402 is fixedly mounted on the unloading slope, and an unloading baffle 403 (see FIG. 1 ) is mounted on the pipe guide plate 402 through a long hole for adjustment. Figure 4 and Figure 5 ), so that when discharging, the pipe 2 to be tested is guided toward the discharge trough 401 by the pipe guide plate 402, and the pipe 2 to be tested is blocked by the discharge baffle 403 to ensure that both ends of the pipe 2 to be tested can enter the discharge trough 401, and the width of the discharge rack is adjusted by the sliding discharge support plate 4 to meet the discharge requirements of pipes 2 to be tested of different lengths. The structure is simple and the discharge effect is good, which provides a guarantee for subsequent effective and reliable feeding.

[0063] The tube combing and discharging mechanism (discharging and blocking structure) includes a slider 103 mounted on the frame 1 for horizontal sliding (along the Y axis), the slider 103 slides between two discharging baffles 403 and is provided with a detection element 101, a slide plate 104 is mounted on the slider 103 for vertical adjustment (along the Z axis), a combing plate 105 is fixedly mounted on the slide plate 104, and the distance between the combing plate 105 and the tube guide plate 402 (i.e., the material passing gap mentioned in the above method) is smaller than the outer diameter of a single tube 2 to be detected; two first linear drive elements 106 (such as cylinders) arranged vertically (along the Z axis) are also fixedly mounted on the slide plate 104, each first linear drive element 106 is provided with a second linear drive element 107 (such as a cylinder) arranged horizontally (along the X axis), and each second linear drive element 107 is provided with a shift rod 108 (see Figure 6), so that when the multiple tubes 2 to be inspected on the discharging rack are discharged one by one, the sliding of the slider 103 and the slide plate 104 adjusts the combing plate 105 to a suitable working position, and then the multiple tubes 2 to be inspected are combed by the combing plate 105 to prevent the tubes 2 to be inspected from being stacked, so as to achieve the effect of the tubes 2 to be inspected passing through one by one; the two groups of first linear drive elements 106, second linear drive elements 107 and gear rods 108 work alternately, so that the tubes 2 to be inspected are guided into the discharging trough 401 one by one, specifically: one group of first linear drive elements 106, second linear drive elements 107 and gear rods 108 work alternately, After the linear drive element 107 and the shift rod 108 cooperate to block the pipe 2 to be inspected, another set of first linear drive elements 106 rises, and the second linear drive element 107 drives the shift rod 108 to move upstream. Then, the first linear drive element 106 descends, and the shift rod 108 blocks the next pipe 2 to be inspected. When the pipe 2 to be inspected in the discharge trough 401 is transferred, the shift rod 108 returns to its position, and the pipe 2 to be inspected slides into the discharge trough 401. This reciprocating process completes the discharge of the pipes 2 to be inspected one by one. The structure is simple, and the effect of discharging the pipes 2 to be inspected one by one is good.

[0064] The pipe inspection support frame includes a support plate 404 fixedly mounted on the end of each material discharging support plate 4, and two support wheels 405 corresponding to the upper and lower pipe rotation drive mechanisms are rotatably mounted on the support plate 404. A first material guide slope 406 is provided at the top corners of both ends of each support plate 404; a material retention plate 407 is fixedly mounted on one side of the two support plates 404 close to each other, and a pipe retention groove 408 (i.e., a temporary storage groove) is provided at the inlet end of the material retention plate 407, and a second material guide slope 409 (see Figures 7 to 9 ); The material retention plate 407 is also provided with an avoidance groove 410 for avoiding the supporting wheel 405, so that when the pipes 2 to be inspected are inspected one by one, the supporting wheel 405 is used to support the transferred pipes 2 to be inspected, and then the pipe rotation driving mechanism drives the pipes 2 to be inspected to rotate on the supporting wheel 405; in the process of transferring the pipes 2 to be inspected to the supporting wheel 405 through the pushing plate 3, the first material guiding slope 406 is used to avoid contact with the pipes 2 to be inspected during transfer. Interference occurs, and the pipe 2 to be inspected is transferred and temporarily stored through the pipe retaining groove 408 on the material retaining plate 407, that is: when the pipe 2 to be inspected is inspected, the pipe 2 to be inspected sent by the pushing plate 3 is temporarily stored in the pipe retaining groove 408. After the inspection of the pipe 2 to be inspected is completed, the temporarily stored pipe 2 to be inspected is sent to the supporting wheel 405 by the pushing plate 3, and the next pipe 2 to be inspected is sent from the material rack to the pipe retaining groove 408 by the pushing plate 3, which lays a foundation for improving work continuity.

[0065] The eccentric rotating synchronous power mechanism includes a driving arm 5 rotatably mounted on the two material discharge support plates 4, and a driving shaft 501 driven by a power assembly is provided between the two driving arms 5, and a bidirectional sliding mechanism is provided on the driving arm 5, and the connection between the bidirectional sliding mechanism and the driving arm 5 deviates from the center of the driving shaft 501; the pushing plate 3 is fixedly mounted on the bidirectional sliding mechanism and cooperates with the material retention plate 407 and the support plate 404, and the pushing plate 3 is provided with a plurality of material troughs 301 (i.e., feeding troughs) arranged in an array along the length direction, so that when the pipe 2 to be inspected in the material discharge trough 401 is transferred, the power assembly drives the driving shaft 501 to rotate, and the driving shaft 501 drives the bidirectional sliding mechanism and the driving arm 5 to rotate, and the bidirectional sliding mechanism slides accordingly in the horizontal and vertical directions to meet the requirement of 360-degree rotation of the driving arm. At the same time, the bidirectional sliding mechanism will drive the pushing plate 3 to move. The specific action is: based on the incoming direction of the pipe 2 to be inspected, the pushing plate 3 will move downward and toward the material discharge trough 401 The push plate 3 moves upward and moves toward the pipe retention groove 408. During the downward process, the push plate 3 moves to the bottom of the pipe 2 to be tested in the discharge groove 401, and during the upward process, the material groove 301 on the push plate 3 receives the pipe 2 to be tested, and takes away one pipe 2 to be tested in the discharge groove 401 during the continuous upward movement; then, another pipe 2 to be tested is sent to the discharge groove 401. At the same time, the push plate 3 sends the pipe 2 to be tested to the discharge groove 401 during the movement and downward process toward the pipe retention groove 408. To the pipe retaining groove 408 on the material retaining plate 407, and so on and so forth, the next pipe 2 to be tested is pushed forward. At the same time, the pipe 2 to be tested in the pipe retaining groove 408 is sent to the supporting wheel 405 through another material groove 301 on the pushing plate 3, and the next pipe 2 to be tested will be synchronously transferred to the pipe retaining groove 408. The use of this eccentric rotating synchronous power mechanism has a good synchronous driving effect on the two pushing plates 3, thereby achieving the purpose of acting on both ends of the pipe 2 to be tested and completing the mechanized transfer one by one.

[0066] Preferably, a driving guide plate 504 is fixedly mounted on each material discharging support plate 4, and a square-shaped guide groove 505 is provided on the driving guide plate 504. The driving arm 5 is rotatably mounted on the driving guide plate 504; a long hole 506 is provided on the driving arm 5 at a position corresponding to the guide groove 505, and rollers 507 are provided in the long hole 506 and the guide groove 505. The two rollers 507 are assembled and connected to the bidirectional sliding mechanism. In this solution, the material trough 301 is provided with three on each push plate 3; the power assembly includes a motor 502, which drives the driving shaft 501, and the driving shaft 501 drives a belt transmission mechanism 503, which drives the driving arm 5 to rotate (see Figures 10 to 13), so that during operation, the square guide groove 505 is used to guide the movement of the roller 507, thereby realizing the restriction of the movement trajectory of the two-way sliding mechanism driven by the driving arm 5 and the push plate 3, so as to ensure that the push plate 3 accurately takes away the pipe 2 to be inspected in the discharge trough 401, and accurately delivers the pipe 2 to be inspected to the pipe retention groove 408 and the supporting wheel 405.

[0067] The bidirectional sliding mechanism includes a connecting shaft 508 connected to two rollers 507, a first slider 509 is fixedly mounted on the connecting shaft 508, the first slider 509 is mounted on the second slider 511 by means of a slide rail 510 for vertical sliding (along the Z axis), and the second slider 511 is mounted on the unloading support plate 4 by means of a slide rail 512 for horizontal sliding (along the X axis); the push plate 3 is fixedly mounted on the first slider 509 (see Figure 11 and Figure 12 ), so that when the driving arm 5 changes its motion trajectory along the guide groove 505 through the roller 507, the corresponding sliding of the first slider 509 and the second slider 511 not only does not affect the driving of the eccentric rotating synchronous power mechanism, but also can effectively ensure that the push plate 3 can transfer the pipe 2 to be inspected.

[0068] The frame opening adjustment mechanism includes a connecting arm 6 fixedly connected to each supporting plate 404 and located downstream of the first guiding inclined surface 406 at the discharge end, and also includes a connecting plate 601 fixedly mounted on the frame 1, on which two slides 602 are mounted for sliding transversely (along the Y axis) and sliding toward each other. The two slides 602 are arranged in a one-to-one correspondence with the two connecting arms 6 and are fixedly connected (see Figure 7 and Figure 8 ), so that when the width of the unloading rack and the pipe inspection support rack is adjusted according to the length of the pipe 2 to be inspected, the two connecting arms 6 are driven to move closer to or away from each other through the slide 602 sliding toward each other, thereby driving the movement of the support plate 404. Since the support plate 404 is connected to the unloading support plate 4, it can drive the unloading support plate 4 to slide on the frame 1, thereby achieving the effect of synchronously adjusting the working width of the unloading rack and the pipe inspection support rack, and adjusting the consistency of accuracy.

[0069] The pipe rotation drive mechanism includes a slide 603 mounted on a connecting plate 601 for vertical sliding (along the Z axis). The slide 603 and the slide seat 602 are distributed on both sides of the connecting plate 601. A mounting seat 604 is mounted on the slide 603 for horizontal sliding (along the Y axis). A pressure roller 606 driven by a driving element 605 (such as a motor) is provided on the mounting seat 604. The pressure roller 606 is arranged in correspondence with the supporting wheel 405 and cooperates with each other (see Figures 7 to 9), so that when the pipe 2 to be inspected is driven to rotate, the driving element 605 drives the pressure roller 606 to rotate, and the pressure roller 606 drives the pipe 2 to be inspected placed on the supporting wheel 405 to rotate. The structure is simple, and the rotation driving effect of the pipe 2 to be inspected is good, which provides conditions for comprehensive inspection of the circumference of the pipe 2 to be inspected; and the rolling position and height of the pressure roller 606 can be adjusted on the Y-axis and Z-axis according to the pipe diameter and length.

[0070] The pipe discharging mechanism includes a mounting plate 7 arranged on the frame 1 and a discharging frame 701 located downstream of the connecting arm 6, the discharging frame 701 is provided with an inclined discharging guide plate 702, and a discharging baffle 703 fixedly connected to the connecting arm 6 is provided above the discharging guide plate 702; a drop hole is provided on the discharging guide plate 702, and a sealing plate 704 is provided at a position corresponding to the drop hole, and a third linear drive element 705 (such as a cylinder) is provided between the sealing plate 704 and the frame 1; a fourth linear drive element 706 (such as a cylinder) is located upstream of the connecting arm 6 and fixedly installed on each supporting plate 404, and the fourth linear drive element 706 drives a receiving and discharging baffle 707 that cooperates with the first guide slope 406, which is the discharging blocking component mentioned in the above method (see Figures 7 to 9 ), so that when the inspection of the tube 2 to be inspected is completed, the pushing plate 3 drives the tube 2 to be inspected on the supporting wheel 405 to be transferred, and the tube 2 to be inspected is blocked by the receiving and discharging baffle 707, and then the fourth linear drive element 706 drives the receiving and discharging baffle 701 to move and releases the tube 2 to be inspected. When the tube 2 to be inspected is a qualified product, the tube 2 to be inspected is guided out through the discharge guide plate 702. If the tube 2 to be inspected is an unqualified product, the third linear drive element 705 drives the sealing plate 704 downward and leaks through the drop hole. The structure is simple, and the qualified products and unqualified products are discharged separately.

[0071] The sliding drives mentioned in the above solutions are all linear electric cylinders or a combination structure of a lead screw and a lead screw nut, and can also be other power structures for achieving drive.

[0072] The above-described embodiments are merely descriptions of preferred implementations of the embodiments of the present invention and are not intended to limit the scope of the embodiments of the present invention. Various modifications and alterations to the technical solutions of the embodiments of the present invention, without departing from the design spirit of the embodiments of the present invention, should fall within the scope of protection determined by the claims of the embodiments of the present invention.

Claims

1. A pipe surface detection method, characterized in that: The following steps are involved: S1. Bulk stock of pipes to be tested; S2. The pipes to be tested are arranged in a single row and are fed one by one in an inclined manner; S3, using an eccentric rotary drive to move the pipes to be inspected in step S2 one by one to the pipe inspection position in a top-feeding manner; S4. Rotate the pipe to be inspected at the inspection position and simultaneously complete the inspection of the outer circumference and both ends of the pipe to be inspected; S5. Classify and discharge qualified and unqualified pipes to be tested; In step S2, two groups of discharge and blocking structures moving on the X-axis and the Z-axis are used to alternately block the discharge of the pipes to be inspected and discharge them into the discharge trough. The specific method is: first, the first group of the discharge and blocking structures is used to block the pipe to be inspected at the first discharge position. At the same time, the second group of the discharge and blocking structures moves on the X-axis and the Z-axis to block the pipe to be inspected at the second discharge position. Afterwards, the first group of the discharge and blocking structures moves on the Z-axis. At this time, the pipe to be inspected at the first discharge position slides into the discharge trough. Afterwards, the first group of the discharge and blocking structures moves on the X-axis and the Z-axis and blocks the pipe to be inspected at the third discharge position. After that, according to the above process, the continuous discharge of the pipes to be inspected is completed one by one; in step S3, the specific method of pushing one by one is: the eccentric rotation drive drives the pushing component provided with multiple feeding troughs to perform a rotational movement, that is, moving to the discharge trough position, moving upward, moving to the pipe detection position, and moving downward. In the process of moving to the discharge trough position, the pushing component will move to the bottom of the pipe to be inspected in the discharge trough and receive the pipe to be inspected in the discharge trough through the feeding trough. Afterwards, in the upward movement, the pushing component lifts the pipe to be inspected in the discharge trough and moves to the pipe detection position. In the process of downward movement, the pipe to be inspected is transferred to the pipe The pipe to be inspected is moved to the pipe inspection position according to the above process one by one; in the process of transferring the pipe to the inspection position, it also includes a temporary storage process and an ejection process after the pipe to be inspected is inspected, specifically: the pushing component is provided with three feeding troughs, and in the process of the pushing component moving downward, the pipe to be inspected in the feeding trough will first be transferred to the temporary storage trough, and then, in the downward rotation movement cycle, the first two feeding troughs of the pushing component will simultaneously lift up the pipe to be inspected in the discharge trough and the pipe to be inspected in the temporary storage trough, and then, the pipe to be inspected in the discharge trough will be transferred to the temporary storage trough, and the pipe to be inspected in the temporary trough will be ejected synchronously. The material is transferred to the pipe inspection position; thereafter, in the next rotary motion cycle, the three feeding troughs on the pushing component work simultaneously, that is, the pipe to be inspected in the discharge trough is transferred to the temporary storage trough, the pipe to be inspected in the temporary storage trough is synchronously transferred to the pipe inspection position, and the pipe to be inspected in the pipe inspection position is synchronously ejected and discharged after inspection, and then the cycle operation is carried out according to the process of the three feeding troughs working simultaneously; in the process of eccentric rotation driving, in order to ensure the working stability and accuracy of the pushing component, the pushing component is guided by the guide groove to perform a rotary motion, and at the same time, the two-way sliding on the X-axis and Z-axis caters to the needs of the rotary motion.

2. A pipe surface detection method according to claim 1, characterized in that: In step S2, the pipes to be inspected are arranged in a single row by ensuring that the feeding space is no larger than the outer diameters of two pipes to be inspected, and the feeding space can be adjusted according to the pipe diameters.

3. The pipe surface detection method according to claim 1, characterized in that: In step S5, qualified and unqualified pipes are discharged through the same discharge path. Qualified pipes are directly guided out through the inclined surface, and unqualified pipes are provided with a drop hole on the discharge path, at which a liftable sealing plate is provided.

4. A pipe surface detection method according to claim 3, characterized in that: Before discharging, the pushing component pushes out the pipe to be inspected at the pipe detection position, and then a discharging blocking process is provided. After that, the discharging blocking component moves along the Y axis, and the pipe to be inspected breaks away from the discharging blocking component and enters the discharging path.

5. The pipe surface detection method according to claim 1, characterized in that: In step S4, the rotation of the pipe to be inspected is supported by the support wheels at both ends of the pipe to be inspected. At the same time, the power-driven pressure roller rotates and applies a rotational friction force to the pipe to be inspected, driving the pipe to be inspected to rotate. The pressing position and height of the pressing roller can be adjusted on the Y axis and the Z axis respectively.

6. The pipe surface detection method according to claim 1, characterized in that: Before step S1, the support width of the batch loading position of the pipes to be inspected and the width of the inspection position are synchronously adjusted according to the length of the pipes to be inspected; During the process of discharging the material in step S2 and discharging the material in step S5, both ends of the pipe to be inspected are blocked synchronously, and the blocking position can be adjusted according to the length of the pipe to be inspected.

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