An automatic identification mechanism for ultrasonic testing of internal and external defects in stainless steel pipes

Abstract

The present invention discloses an automatic identification and distinguishing mechanism for ultrasonically detecting internal and external defects of stainless steel pipes, comprising: a fixed seat, a multi-axis table group, an identification guide group and a spot spraying machine head, a shaft sleeve seat is fixedly installed on the top surface of the fixed seat, an adjusting servo, a first drive motor and a second drive motor are fixedly installed on the surface of the fixed seat, and the output ends of the adjusting servo, the first drive motor and the second drive motor are fixedly connected with a transmission key shaft, and the multi-axis table group comprises an adjusting gear ring, an inner sleeve gear and a core sleeve gear. In the present invention, by setting a multi-axis control structure, the first and second gear discs on the surface of the identification guide group are controlled to deflect under the drive of the first drive motor and the second drive motor to control the spot spraying machine head to face the outer peripheral side of the stainless steel pipe, and each point of the stainless steel pipe is accurately sprayed and marked, and the fixed-point marking spraying and marking are performed at a precise position in conjunction with the ultrasonic internal and external defect detection program of the stainless steel pipe.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel pipe detection, in particular to an automatic identification and identification mechanism for ultrasonic detection of internal and external defects of stainless steel pipes. Background Art

[0002] Quality control is a crucial link in the production and use of stainless steel pipes. Stainless steel pipes are widely used in many fields such as petroleum, chemical industry, food processing, and medical treatment due to their excellent corrosion resistance and mechanical properties. However, due to various factors in the production process, such as material defects and improper processing technology, stainless steel pipes may have various defects on the inner and outer surfaces, such as cracks, pores, inclusions, etc. These defects will not only affect the performance and service life of stainless steel pipes, but may also pose a threat to the safe operation of equipment.

[0003] The ultrasonic detection equipment currently on the market mainly uses ultrasonic detection structures to perform ultrasonic detection on the surface of stainless steel pipes in motion and transportation. After detection, the defective parts are marked by manual dot drawing, or the defective parts are moved to the spray device for spray marking through axial rotation of the stainless steel pipe. The overall movement of the stainless steel pipe consumes a lot of energy, and the overall movement inertia is large and inefficient, resulting in low accuracy in spray marking positioning. Another method is to arrange a number of evenly distributed spray devices on the periphery of the stainless steel pipe to position the stainless steel pipe in linear motion for spraying. There is no need for overall movement of the stainless steel pipe, but there are spraying dead angles between adjacent spray devices, the marking positioning accuracy is low, and the layout of multiple spray devices leads to high equipment costs and many defects.

[0004] In view of this, research and improvement are carried out on the existing problems, and a mechanism for automatically distinguishing and identifying internal and external defects of stainless steel pipes by ultrasonic detection is provided to solve the current problems. The purpose is to solve the problems and improve the practical value through this technology. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted by the present invention is: a stainless steel pipe ultrasonic detection internal and external defects automatic identification mechanism, including: a fixed seat, a multi-axis table group, an identification guide group and a spot spray head, the top surface of the fixed seat is fixedly installed with a shaft sleeve seat, the surface of the fixed seat is fixedly installed with an adjustment steering gear, a first drive motor and a second drive motor, and the output ends of the adjustment steering gear, the first drive motor and the second drive motor are fixedly connected with a transmission key shaft, the multi-axis table group includes an adjustment gear ring, an inner sleeve gear and a core sleeve gear, and the top surfaces of the adjustment gear ring, the inner sleeve gear and the core sleeve gear are respectively fixedly connected with a connecting pipe, a first shaft pipe and a second shaft pipe, and the connecting pipe, the first shaft pipe and the second shaft pipe The pipes are sleeved in sequence and the connecting pipe is rotatably sleeved on the inner side of the shaft sleeve seat. The identification guide group includes a pipe seat, a first toothed disc and a second toothed disc. The pipe seat is rotatably installed on the top surface of the shaft sleeve seat. The first toothed disc and the second toothed disc are coaxially arranged on the surface of the pipe seat in a horizontal direction. The top end of the connecting pipe is fixedly connected to the bottom surface of the identification guide group. The top ends of the first shaft pipe and the second shaft pipe are respectively transmission-connected to the surfaces of the second toothed disc and the first toothed disc. The surfaces of the first toothed disc and the second toothed disc are respectively fixedly installed with the first ear disc and the second ear disc. The first ear disc and the second ear disc are used for the radial arrangement of the spot spray head, and the spot spray head is opposite to the center axis of the first toothed disc and the second toothed disc.

[0007] In a preferred example, the present invention can be further configured as follows: the adjusting servo, the first drive motor and the second drive motor are evenly arranged on the outer periphery of the core sleeve teeth in the circumferential direction and fixed on the surface of the fixed seat, and the transmission key shafts at the output ends of the adjusting servo, the first drive motor and the second drive motor correspond one by one to the adjusting gear ring, the inner sleeve teeth and the core sleeve teeth and are in transmission engagement, and under the drive of the adjusting servo, the first drive motor and the second drive motor, the deflection movement adjustment of the identification guide group and the deflection movement of the first gear disc and the second gear disc are respectively realized to realize automatic drive adjustment.

[0008] In a preferred example, the present invention can be further configured as follows: the top ends of the first shaft tube and the second shaft tube are both provided with conical teeth, and the second gear disc and the first gear disc are respectively in driving engagement with the top ends of the first shaft tube and the second shaft tube.

[0009] In a preferred example, the present invention can be further configured as follows: the first toothed disc and the second toothed disc have two first ear discs and two second ear discs on their surfaces, and the two first ear discs and the second ear discs are arranged opposite to each other.

[0010] In a preferred example, the present invention can be further configured as follows: the first toothed disc and the second toothed disc surface spot spray heads are respectively used for spray marking of defects on the inner wall of a stainless steel tube and spray marking of defects on the outer wall of a stainless steel tube, and an electromagnetic valve group is provided at the end of the spot spray head, and the input end of the electromagnetic valve group is electrically connected to a control system.

[0011] In a preferred example, the present invention can be further configured as follows: a sensor group for detecting the moving speed of the stainless steel pipe is provided on the inner side of the first toothed disc and the second toothed disc, and the output end of the sensor group is electrically connected to the input end of the control system, and the speed displacement sensor and other sensor groups detect the conveying speed of the stainless steel pipe to accurately control the spot spraying time of the spot spraying machine head.

[0012] In a preferred example, the present invention can be further configured as follows: the output end of the control system is electrically connected to the stainless steel pipe ultrasonic detection module, and is used to adjust the servo, the first drive motor drive control and the spot spray head control according to the defect recognition of the stainless steel pipe ultrasonic detection module. After the stainless steel pipe ultrasonic detection module recognizes the surface defect of the stainless steel pipe, according to the movement speed of the stainless steel pipe, after the surface defect of the stainless steel pipe moves to the specified position, precise spot spraying control is performed through the spot spray head.

[0013] The beneficial effects achieved by the present invention are:

[0014] 1. In the present invention, a multi-axis control structure is set up to control the deflection movement of the first and second toothed discs on the surface of the marking guide group under the drive of the first drive motor and the second drive motor to control the spot spraying head to face the outer peripheral side of the stainless steel pipe, and accurately spray mark each point of the stainless steel pipe, and cooperate with the ultrasonic internal and external defect detection program of the stainless steel pipe to perform fixed-point marking and spray marking at a precise position.

[0015] 2. In the present invention, different color marks are sprayed on the surface of the first toothed disc and the second toothed disc by the spray heads respectively to distinguish the inner wall defects and outer wall defects of the stainless steel pipe in the ultrasonic detection results. At the same time, the deflection movement effect of the first toothed disc and the second toothed disc is utilized to perform precise marking spraying at specific points, thereby realizing automatic spraying, simplifying the working structure and reducing equipment costs.

[0016] 3. In the present invention, the automatic alignment function of the marking guide group is realized by integrating the adjusting servo, so that the first gear disc and the second gear disc can be accurately aligned with the axis of the stainless steel pipe, avoiding the direct friction between the spray head and the steel pipe during the transportation process, thereby protecting the surface of the steel pipe from being scratched, and ensuring the accuracy and consistency of the spray marking, reducing the need for manual intervention, further reducing the operating difficulty and error rate, and realizing a more efficient and accurate automated spray marking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the exploded structure of a multi-axis table group and a marking guide group according to an embodiment of the present invention;

[0019] Figure 3A schematic diagram of the structure of a multi-axis table group according to an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the installation structure of a pipe socket according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the transmission structure of an adjusting steering gear, a first drive motor and a second drive motor according to an embodiment of the present invention;

[0022] Figure 6 The figure is a schematic diagram of the surface structure of a first toothed disc according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] 100, fixed seat; 110, sleeve seat; 120, adjusting steering gear; 130, first driving motor; 140, second driving motor; 121, transmission key shaft;

[0025] 200, multi-axis table assembly; 210, adjusting gear ring; 220, inner sleeve gear; 230, core sleeve gear; 211, connecting tube; 221, first shaft tube; 231, second shaft tube;

[0026] 300, marking guide group; 310, pipe seat; 320, first toothed disc; 330, second toothed disc; 321, first ear disc; 331, second ear disc;

[0027] 400, spot spraying machine head. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0029] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0030] The following describes, in conjunction with the accompanying drawings, a mechanism for automatically distinguishing and identifying internal and external defects of a stainless steel pipe provided by some embodiments of the present invention.

[0031] Combination Figure 1-Figure 6As shown, the present invention provides an automatic identification mechanism for ultrasonically detecting internal and external defects of a stainless steel pipe, comprising: a fixed seat 100, a multi-axis platform group 200, an identification guide group 300 and a dot-spraying machine head 400, a shaft sleeve seat 110 is fixedly installed on the top surface of the fixed seat 100, an adjusting servo 120, a first drive motor 130 and a second drive motor 140 are fixedly installed on the surface of the fixed seat 100, and the output ends of the adjusting servo 120, the first drive motor 130 and the second drive motor 140 are fixedly connected with a transmission key shaft 121, the multi-axis platform group 200 comprises an adjusting gear ring 210, an inner sleeve gear 220 and a core sleeve gear 230, and the top surfaces of the adjusting gear ring 210, the inner sleeve gear 220 and the core sleeve gear 230 are respectively fixedly connected with a connecting pipe 211, a first shaft pipe 221 and a second shaft pipe 231, and the connecting pipe 211, the first shaft pipe 221 and the second shaft pipe 231 The connecting pipe 211 is sequentially sleeved and rotatably sleeved on the inner side of the shaft sleeve seat 110, and the identification guide group 300 includes a pipe seat 310, a first toothed disc 320 and a second toothed disc 330. The pipe seat 310 is rotatably installed on the top surface of the shaft sleeve seat 110, and the first toothed disc 320 and the second toothed disc 330 are coaxially arranged on the surface of the pipe seat 310 in the horizontal direction. The top end of the connecting pipe 211 is fixedly connected to the bottom surface of the identification guide group 300, and the top ends of the first shaft tube 221 and the second shaft tube 231 are respectively transmission-connected to the surfaces of the second toothed disc 330 and the first toothed disc 320, and the surfaces of the first toothed disc 320 and the second toothed disc 330 are respectively fixedly installed with the first ear disc 321 and the second ear disc 331, which are used for the radial arrangement of the spot spray head 400, and the spot spray head 400 is opposite to the center axis of the first toothed disc 320 and the second toothed disc 330.

[0032] In this embodiment, the adjusting servo 120, the first drive motor 130 and the second drive motor 140 are evenly arranged in the circumferential direction on the outer periphery of the core sleeve teeth 230 and fixed to the surface of the fixed seat 100, and the transmission key shaft 121 at the output end of the adjusting servo 120, the first drive motor 130 and the second drive motor 140 respectively corresponds to the adjusting gear ring 210, the inner sleeve teeth 220 and the core sleeve teeth 230 one by one and are in transmission engagement.

[0033] Specifically, under the drive of the adjusting steering gear 120, the first driving motor 130 and the second driving motor 140, the deflection movement adjustment of the identification guide group 300 and the deflection movement of the first gear disc 320 and the second gear disc 330 are respectively realized to realize automatic drive adjustment.

[0034] In this embodiment, the top ends of the first shaft tube 221 and the second shaft tube 231 are both provided with conical teeth, and the second toothed disc 330 and the first toothed disc 320 are drivingly engaged with the top ends of the first shaft tube 221 and the second shaft tube 231 respectively.

[0035] In this embodiment, there are two first ear plates 321 and two second ear plates 331 on the surface of the first toothed disc 320 and the second toothed disc 330 , and the two first ear plates 321 and the second ear plates 331 are arranged opposite to each other.

[0036] In this embodiment, the spot spray heads 400 on the surfaces of the first toothed disc 320 and the second toothed disc 330 are respectively used for spray marking defects on the inner wall of the stainless steel pipe and the outer wall of the stainless steel pipe. An electromagnetic valve group is provided at the end of the spot spray head 400, and the input end of the electromagnetic valve group is electrically connected to a control system.

[0037] In this embodiment, a sensor group for detecting the moving speed of the stainless steel pipe is disposed inside the first toothed disc 320 and the second toothed disc 330 , and the output end of the sensor group is electrically connected to the input end of the control system.

[0038] Specifically, a sensor group such as a speed displacement sensor detects the conveying speed of the stainless steel pipe and accurately controls the 400-point spraying time of the spot spraying head.

[0039] Furthermore, the output end of the control system is electrically connected to the stainless steel pipe ultrasonic detection module, and is used to adjust the steering gear 120, the first drive motor 130 drive control and the spot spray head 400 control according to the defect recognition of the stainless steel pipe ultrasonic detection module.

[0040] Specifically, after the stainless steel pipe ultrasonic detection module identifies the surface defect of the stainless steel pipe, according to the movement speed of the stainless steel pipe, after the surface defect of the stainless steel pipe moves to a specified position, precise spot spraying control is performed through the spot spraying head 400.

[0041] The working principle and use process of the present invention:

[0042] In the automatic identification mechanism for ultrasonic detection of internal and external defects of stainless steel pipes, the first toothed disc 320 and the second toothed disc 330 are connected to two different color pigment pumping systems for pigment input, and the first toothed disc 320 and the second toothed disc 330 are used to mark the inner wall defects and the outer wall defects of the stainless steel pipe during ultrasonic detection of the stainless steel pipe. The stainless steel pipe passes through the first toothed disc 320 and the second toothed disc 330 on the surface of the pipe seat 310 to perform uniform conveying motion.

[0043] Under the drive of the regulating servo 120, the gear ring 210 and the marking guide group 300 can be controlled to deflect and move, and the center of the first toothed disc 320 and the second toothed disc 330 can be adjusted to be coaxial with the axis of the stainless steel pipe, so as to avoid the frictional contact between the spray head 400 on the surface of the first toothed disc 320 and the second toothed disc 330 and the stainless steel pipe during the conveying movement, thereby making the distance between the spray head 400 and the outer wall of the stainless steel pipe consistent, so as to make the spray range consistent; under the drive of the first driving motor 130, the inner sleeve gear 220 and the first shaft tube 221 are controlled to rotate, and the second toothed disc 330 on the surface of the pipe seat 310 is controlled to rotate. According to the ultrasonic detection result of the stainless steel pipe, when the stainless steel pipe is being conveyed, the spray head 400 is deflected to a specified angle, and the stainless steel pipe The conveying movement is performed until the defect moves to the position opposite to the spot spraying machine head 400, and the spot spraying machine head 400 is used for precise spraying and marking. Similarly, the core sleeve teeth 230 are driven to rotate by the second driving motor 140, so that the second shaft tube 231 drives the first toothed disc 320 to rotate, and the spot spraying machine head 400 on the surface of the first toothed disc 320 is used to face the surface defect of the stainless steel pipe for precise spraying and marking. Different color marks are sprayed by the spot spraying machine heads 400 on the surfaces of the first toothed disc 320 and the second toothed disc 330 respectively to distinguish the inner wall defects and outer wall defects of the stainless steel pipe in the ultrasonic detection results. At the same time, the deflection movement effect of the first toothed disc 320 and the second toothed disc 330 is used to perform precise marking and spraying at specific points to realize automatic spraying and marking.

[0044] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stainless steel tube ultrasonic detection internal and external defects automatic identification mechanism, characterized in that: include: A fixed seat (100), a multi-axis platform group (200), a marking guide group (300) and a dot-spraying machine head (400); a shaft sleeve seat (110) is fixedly mounted on the top surface of the fixed seat (100); an adjusting steering gear (120), a first drive motor (130) and a second drive motor (140) are fixedly mounted on the surface of the fixed seat (100); and the output ends of the adjusting steering gear (120), the first drive motor (130) and the second drive motor (140) are fixedly connected to a transmission key shaft (121); the multi-axis platform group (200) comprises an adjusting gear ring (210), inner sleeve teeth (220) and core sleeve teeth (230); and the adjusting gear ring (210), the inner sleeve teeth (220) and the core sleeve teeth (230) are fixedly mounted on the surface of the fixed seat (10 ... The top surfaces of the teeth (220) and the core sleeve teeth (230) are respectively fixedly connected with a connecting tube (211), a first shaft tube (221) and a second shaft tube (231); the connecting tube (211), the first shaft tube (221) and the second shaft tube (231) are sleeved in sequence and the connecting tube (211) is rotatably sleeved on the inner side of the shaft sleeve seat (110); the marking guide group (300) comprises a pipe seat (310), a first toothed disc (320) and a second toothed disc (330); the pipe seat (310) is rotatably mounted on the top surface of the shaft sleeve seat (110); the first toothed disc (320) and the second toothed disc (330) are coaxially arranged on the surface of the pipe seat (310) in a horizontal direction. The top end of the connecting tube (211) is fixedly connected to the bottom surface of the marking guide group (300); the top ends of the first shaft tube (221) and the second shaft tube (231) are respectively drivingly connected to the surfaces of the second toothed disc (330) and the first toothed disc (320); the surfaces of the first toothed disc (320) and the second toothed disc (330) are respectively fixedly mounted with a first ear disc (321) and a second ear disc (331); the first ear disc (321) and the second ear disc (331) are used for radial arrangement of the spot spray head (400); the spot spray head (400) faces the center axis of the first toothed disc (320) and the second toothed disc (330); the adjusting steering gear (120), the first drive gear (121) and the first drive gear (122) are respectively drivingly connected to the surfaces of the second toothed disc (320) and the first drive gear (123); The driving motor (130) and the second driving motor (140) are evenly arranged on the outer periphery of the core sleeve teeth (230) in a circumferential direction and fixed to the surface of the fixing seat (100); the transmission key shafts (121) at the output ends of the adjusting steering gear (120), the first driving motor (130) and the second driving motor (140) correspond to the adjusting gear ring (210), the inner sleeve teeth (220) and the core sleeve teeth (230) one by one and are in transmission meshing engagement; the top ends of the first shaft tube (221) and the second shaft tube (231) are both provided with conical teeth; the second toothed disc (330) and the first toothed disc (320) are in transmission meshing engagement with the top ends of the first shaft tube (221) and the second shaft tube (231), respectively.

2. The automatic identification mechanism for ultrasonic testing of internal and external defects of stainless steel pipes according to claim 1 is characterized in that: The surfaces of the first toothed disc (320) and the second toothed disc (330) each have two first ear discs (321) and two second ear discs (331), and the first ear discs (321) and the second ear discs (331) are arranged opposite to each other.

3. The automatic identification and identification mechanism for ultrasonic testing of internal and external defects of stainless steel pipes according to claim 1 is characterized in that: The spot spray heads (400) on the surfaces of the first toothed disc (320) and the second toothed disc (330) are used for spray marking defects on the inner wall of a stainless steel pipe and for spray marking defects on the outer wall of a stainless steel pipe, respectively. An electromagnetic valve group is provided at the end of the spot spray head (400), and an input end of the electromagnetic valve group is electrically connected to a control system.

4. The automatic identification mechanism for ultrasonic testing of internal and external defects of stainless steel pipes according to claim 3 is characterized in that: A sensor group for detecting the moving speed of the stainless steel pipe is provided on the inner side of each of the first toothed disc (320) and the second toothed disc (330), and the output end of the sensor group is electrically connected to the input end of the control system.

5. The automatic identification mechanism for ultrasonic testing of internal and external defects of stainless steel pipes according to claim 4 is characterized in that: The output end of the control system is electrically connected to the stainless steel pipe ultrasonic detection module and is used to adjust the steering gear (120), the first drive motor (130) drive control and the spot spray head (400) control according to the defect recognition of the stainless steel pipe ultrasonic detection module.

6. The automatic identification mechanism for ultrasonic testing of internal and external defects of stainless steel pipes according to claim 5 is characterized in that: After the stainless steel pipe ultrasonic detection module identifies the surface defect of the stainless steel pipe, according to the movement speed of the stainless steel pipe, after the surface defect of the stainless steel pipe moves to a specified position, the spot spraying head (400) performs precise spot spraying control.

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