High-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection

Abstract

The invention discloses high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection, and belongs to the technical field of metal detection equipment.The high-precision ultrasonic flaw detection equipment is characterized in that a traditional positioning type working groove is replaced with a rotationally-mounted overturning frame, and feeding and discharging matching structures are arranged on the two sides of the overturning frame correspondingly; a feeding structure loaded with a plurality of metal plates in advance moves downwards in a stepping mode within preset time, the metal plates are conveyed to a positioning cavity of a rotary drum through a first conveying belt, magnetic attraction positioning of the fed metal plates is achieved through negative pressure attraction, then an overturning frame is rotated by 90 degrees anticlockwise, and the metal plates are conveyed to the positioning cavity of the rotary drum through a second conveying belt. The metal plate is rotated to a detection station in the vertical direction from the horizontal direction, comprehensive detection is conducted through the flaw detection structure, after flaw detection work is completed, the overturning frame is rotated by 90 degrees anticlockwise again, negative pressure adsorption is relieved, the detected metal plate is conveyed out through the second conveying belt, and feeding, detection and discharging of the metal plate are automatically completed in this way. And the industrial requirements of large-batch testing are met.

Description

Technical Field

[0001] The invention relates to the technical field of metal detection equipment, and more specifically to a high-precision ultrasonic flaw detection equipment suitable for flaw detection of batch metal plates. Background Art

[0002] Ultrasonic flaw detectors use the ability of ultrasound to penetrate deep into metal sheets and reflect at the edge of the interface when entering from one section to another to inspect defects in parts. Ultrasonic flaw detectors can quickly, conveniently, non-destructively and accurately detect, locate, evaluate and diagnose a variety of defects (including longitudinal cracks, transverse cracks, porosity, pores, slag inclusions, etc.) inside metal sheet workpieces.

[0003] The traditional inspection process uses manual handheld ultrasonic detectors to inspect a single product. After completing the flaw detection of a metal plate, the operator needs to remove the detected metal plate from the working tank and then place the next metal plate to be inspected in the working tank before continuing the flaw detection. The entire flaw detection operation requires manual loading and unloading, resulting in low efficiency of flaw detection and failure to meet the industrial requirements of large-scale testing.

[0004] To this end, we propose a high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the existing practical problems. Compared with the existing technology, a high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection is provided. The traditional positioning working groove is replaced by a rotatably installed turning frame, and loading and unloading matching structures are respectively arranged on the left and right sides of the turning frame. When working, the loading structure pre-loaded with multiple metal plates moves downward in a predetermined time, and relies on conveyor belt 1 to convey the metal plates to the positioning cavity of the rotating drum. The suction structure and the adsorption hole are used to cooperate to realize the magnetic positioning of the metal plates after loading, and then the turning frame is rotated counterclockwise by 90 degrees, and the metal plate is rotated from the horizontal direction to the vertical direction of the detection station for flaw detection. After the flaw detection work is completed, the turning frame is rotated counterclockwise by 90 degrees again, and the detected metal plate is conveyed out by the transmission conveyor belt 2. This cycle automatically completes the loading, detection and unloading of metal plates to meet the industrial requirements of large-scale testing.

[0006] The object of the present invention can be achieved by the following technical scheme: a high-precision ultrasonic flaw detection device suitable for batch metal plate flaw detection comprises a support seat, a flip frame is rotatably mounted on the support seat, the flip frame comprises a rotating drum, a group of positioning cavities for placing metal plates are annularly opened in the front and rear directions of the outer end wall of the rotating drum, each group of positioning cavities is provided with four, a plurality of adsorption holes are opened on the placement surface of the positioning cavity, a suction structure connected with the plurality of adsorption holes is embedded and installed inside the rotating drum, and a flaw detection structure located above the flip frame and movable vertically and horizontally is installed on the support seat; A feeding box is provided on the side of the support seat away from the flaw detection structure, and two electric guide rails are embedded and installed on the left and right end walls of the feeding box. A feeding structure that can be lifted and lowered in the vertical direction is installed between a pair of the two electric guide rails. A conveyor belt 1 corresponding to the position of the positioning cavity is installed on the end wall of the feeding box located on the outer side of the feeding structure, and a conveyor belt 2 corresponding to the position of the positioning cavity is installed on the side of the support seat away from the conveyor belt 1; The feeding structure includes positioning plates respectively fixed on a pair of electric guide rails, and a plurality of groups of rotating rods distributed in the vertical direction are rotatably installed between the opposite end walls of the pair of positioning plates. A placement space for embedding and placing the metal plate is reserved between the upper and lower adjacent groups of rotating rods, and the width of the placement space is smaller than the left and right width of the metal plate.

[0007] Furthermore, the suction structure includes a plurality of ventilation boxes embedded and installed inside the drum and corresponding to the positions of the positioning cavities, each ventilation box is connected to the adsorption hole on the positioning cavity corresponding to its position, and a plurality of connecting pipes connected to the inner end walls of the plurality of ventilation boxes are also embedded and installed at the axial position of the drum.

[0008] Furthermore, a hollow groove with one end open for embedding and installing a connecting pipe is provided at the axial center position of the rotating drum, and connecting pipes fixedly connected to the outer end walls of multiple connecting pipes are fixedly embedded and installed at both the front and rear ends of the hollow groove. The matching structure of each group of connecting pipes and the ventilation box is used to perform suction on the front and rear groups of adsorption holes in the same horizontal direction. When the metal plate is placed horizontally in the positioning cavity, the metal plate is attached to one side of the adsorption hole, and the metal plate is adsorbed and positioned using the multiple adsorption holes.

[0009] Furthermore, the flaw detection structure includes an electric guide rail fixed on the front and rear end walls of the support seat, a U-shaped frame is installed between a pair of electric guide rails, a screw is rotatably installed on the top wall of the U-shaped frame, a driving motor for rotating the screw is fixed to the top outer wall of the U-shaped frame, and a movable seat that moves horizontally along the U-shaped frame is threadedly sleeved on both ends of the screw, and a pair of horizontally arranged ultrasonic probes are embedded and installed on the movable seats.

[0010] Furthermore, the thread directions of the left and right ends of the screw are arranged in opposite directions, and an ultrasonic flaw detector body electrically connected to the ultrasonic probe is fixedly mounted on the top of the movable seat.

[0011] Furthermore, each set of rotating rods is provided with a plurality of them in the left and right directions, and two sets of limiting frames movably embedded on the rotating rods and corresponding to the positions of the front and rear positioning cavities are provided between a pair of positioning plates.

[0012] Furthermore, each group of the limit frames is provided with two, the inner end portion of the conveyor belt 1 is closely connected with the outer end portions of the multiple groups of limit frames, and when the rotating rod steps downward to a loading station, the bottom end wall of the placement space is arranged flush with the upper end wall of the conveyor belt 1. When the loading structure is stepped downward one unit at a time at a preset time by the electric guide rail 2, the metal plate pre-placed in the placement space just fits against the upper end surface of the conveyor belt 1, and the conveyor belt 1 conveys the metal plate to the positioning cavity in the horizontal direction, and the magnetic positioning of the metal plate after loading is realized by the cooperation of the suction structure and the adsorption hole.

[0013] Furthermore, a transverse groove corresponding to the position of each group of rotating rods is opened on the end wall of the limit frame along the vertical direction, and a rotating sleeve connected with the movable sleeve of the rotating rod is rotatably embedded inside the transverse groove.

[0014] Compared with the prior art, the advantages of the present invention are: This solution is to replace the traditional positioning working groove with a rotatably installed turning frame, and set loading and unloading matching structures on the left and right sides of the turning frame respectively. When working, the loading structure pre-loaded with multiple metal plates moves downward in a predetermined time, and relies on conveyor belt 1 to convey the metal plates to the positioning cavity of the rotating drum. The suction structure and the adsorption hole are used to cooperate to realize the magnetic positioning of the metal plates after loading, and then the turning frame is rotated counterclockwise by 90 degrees, and the metal plate is rotated from the horizontal direction to the vertical detection station. The flaw detection structure performs a comprehensive flaw detection operation on the metal plate. After the flaw detection work is completed, the turning frame is rotated counterclockwise by 90 degrees again, and the outer lower end surface of the metal plate after detection contacts conveyor belt 2, the negative pressure adsorption is released, and it is conveyed out by conveyor belt 2. This cycle automatically completes the loading, detection and unloading of metal plates to meet the industrial requirements of large-scale testing. The loading structure in the present scheme includes multiple sets of rotating rods installed between a pair of positioning plates in a vertical direction, and the rotating rods are also movably connected with limit frames located on both sides of the metal plate. According to the front and rear width of the metal plate, the spacing of a pair of limit frames is moved left and right, which is beneficial to limit the metal plate in the placement space to the left and right. When the loading structure is stepped down one unit at a time at a preset time by using the electric guide rail 2, the metal plate in the placement space just fits against the upper end surface of the conveyor belt 1, and the conveyor belt 1 conveys the metal plate to the positioning cavity in the horizontal direction. In the process of the metal plate moving outward, the rotating rods arranged up and down are beneficial to the rolling transmission of the metal plate. Compared with the traditional upper and lower partition plate type partition support, the upper and lower rotating rods are used as partition support points to reduce transmission friction and improve the transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 The structure diagram of the joint of the support seat, the turning frame and the flaw detection structure of the present invention is shown in FIG. Figure 1 ; Figure 4 The structure diagram of the joint of the support seat, the turning frame and the flaw detection structure of the present invention is shown in FIG. Figure 2 ; Figure 5 It is a structural schematic diagram of the overturning frame of the present invention; Figure 6 A cross-sectional view of the overturning frame of the present invention; Figure 7 It is a disassembled diagram of the flaw detection structure of the present invention; Figure 8 It is a schematic diagram of the structure after placing multiple groups of metal plates in the loading box of the present invention; Fig. 9 It is a structural schematic diagram of the joint between the feeding box and the feeding structure of the present invention; Fig.10 It is a structural schematic diagram of the joint between the feeding structure and the conveyor belt of the present invention; Fig.11 It is a structural schematic diagram of the limiting frame of the present invention; Fig.12 A cross-sectional view of the loading box of the present invention when the metal plate is conveyed outward; Fig.13 It is a schematic diagram of the structure of the present invention when it is working; Fig.14 It is a schematic diagram of the structure of the present invention when the feeding structure is moved stepwise downward.

[0016] Description of the numbers in the figure: 1. Support seat; 2. Turning frame; 21. Rotating drum; 211. Positioning cavity; 212. Adsorption hole; 22. Ventilation box; 23. Connecting pipe; 24. Butt-jointed pipe; 3. U-shaped frame; 4. Screw; 5. Moving seat; 6. Ultrasonic probe; 7. Electric guide rail 1; 8. Loading box; 9. Electric guide rail 2; 10. Positioning plate; 11. Rotating rod; 12. Limiting frame; 121. Rotating sleeve; 13. Metal plate; 14. Conveyor belt 1; 15. Conveyor belt 2. DETAILED DESCRIPTION

[0017] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0018] Example 1: The present invention discloses a high-precision ultrasonic flaw detection device suitable for batch metal plate flaw detection, please refer to Figure 1-Figure 6 , including a support seat 1, a turning frame 2 is rotatably mounted on the support seat 1, and the turning frame 2 includes a rotating drum 21, and a group of positioning cavities 211 for placing the metal plate 13 are annularly opened in the front and rear directions of the outer end wall of the rotating drum 21, and the width of the positioning cavity 211 is smaller than the left and right width of the metal plate 13; Each group of positioning cavities 211 is provided with four, and a plurality of adsorption holes 212 are provided on the placement surface of the positioning cavities 211. A suction structure connected with the plurality of adsorption holes 212 is embedded and installed inside the rotating drum 21. The suction structure includes a plurality of ventilation boxes 22 embedded and installed inside the rotating drum 21 and corresponding to the positions of the positioning cavities 211. Each ventilation box 22 is connected with the adsorption holes 212 on the positioning cavities 211 corresponding to its position. A plurality of connecting pipes 23 connected with the inner end walls of the plurality of ventilation boxes 22 are also embedded and installed at the axial center position of the rotating drum 21. A hollow groove with one end open for embedding and installing the connecting pipe 23 is opened at the axial center position of the rotating drum 21, and connecting pipes 24 fixedly connected to the outer end walls of multiple connecting pipes 23 are fixedly embedded and installed at both front and rear ends of the hollow groove. The matching structure of each group of connecting pipes 23 and the ventilation box 22 is used to suck the front and rear groups of adsorption holes 212 in the same horizontal direction. A rotating motor for rotating the rotating drum 21 is installed on the outer end wall of the support seat 1 away from the opening. When the metal plate 13 is placed horizontally in the positioning cavity 211, the metal plate 13 is attached to one side of the adsorption hole 212, and the metal plate 13 is adsorbed and positioned by using the multiple adsorption holes 212.

[0019] See also Figure 3 , Figure 4 , Figure 7 A flaw detection structure located above the flip frame 2 and movable vertically and horizontally is installed on the support seat 1. The flaw detection structure includes an electric guide rail 7 fixed on the front and rear end walls of the support seat 1. A U-shaped frame 3 is installed between a pair of electric guide rails 7. A screw 4 is rotatably installed on the top wall of the U-shaped frame 3. A driving motor for rotating the screw 4 is fixed to the top outer wall of the U-shaped frame 3. A moving seat 5 that moves horizontally along the U-shaped frame 3 is threadedly sleeved on both ends of the screw 4. The thread directions of the left and right ends of the screw 4 are set in opposite directions. A horizontally arranged ultrasonic probe 6 is embedded and installed on the pair of moving seats 5. An ultrasonic flaw detector body electrically connected to the ultrasonic probe 6 is fixedly installed on the top of the moving seat 5.

[0020] See also Fig.13 After the metal plate 13 is magnetically positioned in the positioning cavity 211, the rotating drum 21 is driven to rotate by the rotating motor. At this time, the metal plate 13 rotates from the horizontal direction to the vertical detection station, and the ultrasonic probe 6 is used to perform comprehensive flaw detection operations on the metal plate 13 in the horizontal and vertical directions in sequence. During the flaw detection process, the driving motor drives the screw 4 to rotate, and the pair of movable seats 5 distributed front and back move horizontally from the middle to both sides in the opposite direction, and the two metal plates 13 distributed front and back are ultrasonically detected from one side to the other side. After the first stage of horizontal detection of the metal plate 13 is completed, the driving motor rotates in the opposite direction, the screw 4 rotates in the opposite direction, and the pair of movable seats 5 drive the ultrasonic probe 6 to move toward each other. At this time, the electric guide rail 7 is used to drive the U-shaped frame 3 to step downward by one detection unit. In this way, the end face of the metal plate 13 is fully detected in a cycle. After the detection work is completed, the electric guide rail 7 is used to drive the movable seat 5 and the ultrasonic probe 6 to the top of the metal plate 13 to avoid affecting the rotation of the metal plate 13.

[0021] Embodiment 2: Based on Embodiment 1, this embodiment adds a matching structure for continuous loading and unloading of the metal plate 13 on both sides of the overturning frame 2, as follows: See also Figure 1 and Figure 8-Figure 13 A feeding box 8 is provided on the side of the support seat 1 away from the flaw detection structure, and electric guide rails 29 are embedded and installed on the left and right end walls of the feeding box 8. A feeding structure that can be lifted and lowered in the vertical direction is installed between a pair of electric guide rails 29. A conveyor belt 14 corresponding to the position of the positioning cavity 211 is installed on the end wall of the feeding box 8 located on the outer side of the feeding structure, and a conveyor belt 15 corresponding to the position of the positioning cavity 211 is installed on the side of the support seat 1 away from the conveyor belt 14.

[0022] The feeding structure includes positioning plates 10 respectively fixed on a pair of electric guide rails 9, and a plurality of groups of rotating rods 11 distributed in the vertical direction are rotatably installed between the opposite end walls of the pair of positioning plates 10. Each group of rotating rods 11 is provided with a plurality of rotating rods 11 in the horizontal direction. A placement space for embedding and placing a metal plate 13 is reserved between two adjacent groups of rotating rods 11, and the width of the placement space is smaller than the left and right width of the metal plate 13. In the initial state, the feeding structure is located above the side of the conveyor belt 14, and the lowest placement space corresponds to the position of the conveyor belt 14. Multiple metal plates 13 are embedded in the placement space one by one. Under the premise of providing stable support, the outer ends of the metal plates 13 are exposed to the outside of the feeding structure, so that when the feeding structure is driven downward, the lowest 13 can fit on the conveyor belt 14; For more details, see Fig.10 , Fig.11 , each group of rotating rods 11 is provided with multiple ones in the left and right directions, and two groups of limit frames 12 movably embedded on the rotating rods 11 and corresponding to the positions of the front and rear positioning cavities 211 are also provided between a pair of positioning plates 10, and each group of limit frames 12 is provided with two, and the two limit frames 12 are arranged on both sides of the metal plate 13 relative to the positioning cavity 211, and the limit frames 12 are provided with transverse grooves corresponding to the positions of each group of rotating rods 11 on the end walls along the vertical direction, and the rotating sleeves 121 connected with the movable sleeves of the rotating rods 11 are rotatably embedded inside the transverse grooves, and the spacing between the pair of limit frames 12 is moved left and right according to the front and rear width of the metal plate 13, so as to facilitate the metal plate 13 placed in the placement space to play a left and right limiting role; See also Figure 12-14 The inner end of the conveyor belt 14 is close to and connected with the outer ends of the multiple groups of limit frames 12, and when the rotating rod 11 steps downward, the bottom end wall of the placement space is flush with the upper end wall of the conveyor belt 14. When the electric guide rail 29 is used to step the feeding structure downward one unit at a preset time, the metal plate 13 pre-placed in the placement space just fits the upper end surface of the conveyor belt 14, and the conveyor belt 14 conveys the metal plate 13 to the positioning cavity 211 in the horizontal direction. In the process of the metal plate 13 moving outward, the upper and lower rotating rods 11 are conducive to the rolling transmission of the metal plate 13. Compared with the upper and lower partition plate type partition support, the upper and lower rotating rods 11 are used as partition support points to reduce transmission friction and improve the transmission effect.

[0023] Regarding the rotation design of the rotating rod 11, it should be noted that when the placement space corresponds to the position of the rotating sleeve 121, the metal plate 13 is conveyed outward by using the started conveyor belt 14. At this time, the friction between the metal plate 13 and the conveyor belt 14 causes the metal plate 13 to be conveyed outward along with the conveyor belt 14. Due to the rolling friction, the rotation directions of the rotating rods 11 in the upper and lower directions of the placement space are respectively opposite to the conveying direction of the metal plate 13, that is, Fig.11 , Fig.12 As shown, when the metal plate 13 moves to the left, the rotating rod 11 below the placement space moves forward counterclockwise, and the rotating rod 11 above the placement space moves backward clockwise. Therefore, the metal plate 13 located in the previous placement space will not be displaced outward due to the clockwise backward movement of the rotating rod 11 at its bottom. That is, the rolling design of the rotating rod 11 is conducive to the transmission of the metal plate 13 at the placement space corresponding to the position of the conveyor belt 14, and will not cause movement influence on the metal plates 13 in other placement spaces.

[0024] In summary: the traditional positioning working groove is replaced with a rotatably installed turning frame 2, which is composed of a rotating drum 21 with multiple groups of positioning cavities 211 in a ring shape and a suction structure embedded in the rotating drum 21 and connected with the adsorption holes 212 on the positioning cavities 211, and loading and unloading matching structures are respectively arranged on the left and right sides of the turning frame 2. When working, the loading box 8 pre-loaded with multiple metal plates 13 is pushed to one side of the turning frame 2. At this time, the metal plate 13 located at the bottom of the loading structure is just in contact with the conveyor belt 14. The conveyor belt 14 is started to convey the metal plate 13 in the placement space to the positioning cavity 211 rotated to the horizontal direction, and the metal plate 13 after loading is magnetically positioned by the cooperation of the suction structure and the adsorption holes 212. After the positioning work is completed, the flip frame 2 rotates counterclockwise by ninety degrees. At this time, the metal plate 13 is rotated from the horizontal direction to the vertical detection station. The flaw detection structure is used to perform comprehensive flaw detection operations on the metal plate 13 in the vertical direction up and down and left and right. The next positioning cavity 211 is now in the horizontal direction corresponding to the position of the conveyor belt 14. During the flaw detection work, the loading structure steps down one unit at a preset time interval to continuously load the material. After the flaw detection work is completed, the flip frame 2 rotates counterclockwise by ninety degrees, and the detected metal plate 13 is rotated to the horizontal direction again. At this time, the lower end surface of the outer end of the metal plate 13 is attached to the conveyor belt 2, and the negative pressure operation of the suction structure is disconnected. The detected metal plate 13 is conveyed by the conveyor belt 2 15, and the next positioned metal plate 13 is rotated to the detection station again. This cycle automatically completes the loading, detection, and unloading of the metal plate 13 to meet the industrial requirements of large-scale testing.

[0025] The above are only preferred specific implementation modes of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A high-precision ultrasonic flaw detection device suitable for batch metal plate flaw detection, comprising a support seat (1), characterized in that: A turning frame (2) is rotatably mounted on the support seat (1), the turning frame (2) comprising a rotating drum (21), a group of positioning cavities (211) for placing the metal plate (13) are annularly opened in the front and rear directions of the outer end wall of the rotating drum (21), each group of positioning cavities (211) is provided with four, a plurality of adsorption holes (212) are opened on the placement surface of the positioning cavity (211), a suction structure connected to the plurality of adsorption holes (212) is embedded and installed inside the rotating drum (21), and a flaw detection structure located above the turning frame (2) and movable vertically and horizontally is installed on the support seat (1); A feeding box (8) is provided on the side of the support seat (1) away from the flaw detection structure, and two electric guide rails (9) are embedded and installed on the left and right end walls of the feeding box (8), and a feeding structure that can move up and down is installed between the pair of electric guide rails (9). A conveyor belt (14) corresponding to the position of the positioning cavity (211) is installed on the end wall of the feeding box (8) located outside the feeding structure, and a conveyor belt (15) corresponding to the position of the positioning cavity (211) is installed on the side of the support seat (1) away from the conveyor belt (14); The feeding structure comprises positioning plates (10) respectively fixed on a pair of electric guide rails (9), a plurality of groups of rotating rods (11) distributed in a vertical direction are rotatably mounted between the opposite end walls of the pair of positioning plates (10), and a placement space for embedding a metal plate (13) is reserved between two adjacent groups of rotating rods (11) above and below.

2. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 1 is characterized in that: The suction structure comprises a plurality of ventilation boxes (22) embedded in the interior of the rotating drum (21) and corresponding to the positions of the positioning cavities (211); each ventilation box (22) is connected to an adsorption hole (212) on the positioning cavity (211) corresponding to its position; and a plurality of connecting pipes (23) connected to the inner end walls of the plurality of ventilation boxes (22) are also embedded in the axial position of the rotating drum (21).

3. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 2 is characterized in that: A hollow groove with one end open and for embedding and installing a connecting pipe (23) is provided at the axial center of the rotating drum (21), and a butt-jointing pipe (24) fixedly connected to the outer end walls of the plurality of connecting pipes (23) is fixedly embedded and installed at both the front and rear ends of the hollow groove.

4. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 1 is characterized in that: The flaw detection structure comprises an electric guide rail (7) fixed on the front and rear end walls of the support seat (1), a U-shaped frame (3) is installed between a pair of electric guide rails (7), a screw rod (4) is rotatably installed on the top wall of the U-shaped frame (3), a driving motor for rotating the screw rod (4) is fixed on the top outer wall of the U-shaped frame (3), and a movable seat (5) that moves horizontally along the U-shaped frame (3) is threadedly sleeved on both left and right ends of the screw rod (4), and a horizontally arranged ultrasonic probe (6) is embedded and installed on the pair of movable seats (5).

5. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 4 is characterized in that: The screw threads at the left and right ends of the screw rod (4) are arranged in opposite directions, and an ultrasonic flaw detector body electrically connected to the ultrasonic probe (6) is fixedly mounted on the top of the movable seat (5).

6. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 1 is characterized in that: Each group of rotating rods (11) is provided with a plurality of them in the left and right directions, and two groups of limiting frames (12) are provided between a pair of positioning plates (10) and are movably embedded in the rotating rods (11) and respectively correspond to the positions of the front and rear positioning cavities (211).

7. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 6 is characterized in that: Each group of the limit frames (12) is provided with two, the inner end of the conveyor belt one (14) is closely connected to the outer end of the plurality of groups of limit frames (12), and when the rotating rod (11) steps downward to a loading station, the bottom end wall of the placement space is arranged flush with the upper end wall of the conveyor belt one (14).

8. The high-precision ultrasonic flaw detection equipment suitable for batch metal plate flaw detection according to claim 7 is characterized in that: The end wall of the limit frame (12) in the vertical direction is provided with a transverse groove corresponding to the position of each group of rotating rods (11), and a rotating sleeve (121) rotatably embedded in the interior of the transverse groove and connected with the movable sleeve of the rotating rod (11).

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