Online strip full-automatic eddy current testing equipment

Abstract

An upper rolling mechanism, a lower rolling mechanism, a left clamping mechanism, a right clamping mechanism, an upper detection probe device and a lower detection probe device are installed in an operation box, the upper rolling mechanism and the lower rolling mechanism are used for clamping and correcting the upper surface and the lower surface of a strip, and the left clamping mechanism and the right clamping mechanism are used for clamping the left side and the right side of the strip. The strip at least passes through one group of upper and lower rolling mechanisms and one group of left and right clamping mechanisms and then enters the upper and lower detection probe device, and an upper detection probe assembly and a lower detection probe assembly are arranged in the upper and lower detection probe device and are used for carrying out eddy current detection on the upper surface and the lower surface of the strip. The device can be connected with an output station of a strip unit on line, eddy current detection can be carried out on strips in time, the working efficiency is high, errors are small, the precision is high, and the eddy current detection time is short.

Description

Technical Field

[0001] The utility model relates to the technical field of eddy current detection, in particular to an online strip full-automatic eddy current detection device. Background Technique

[0002] The strip mainly includes products such as steel strips and stainless steel plates. When producing such products, the length is not fixed and can be continuously produced. The production speed of the unit is 0 - 50 m / min (speed fluctuation ≤ 10%). The width of the strip is 120 - 380 mm, and the thickness of the strip is 2.4 - 7.6 mm; during production, it is required that the flattening flatness of the strip is less than 1 mm within any 1 m range.

[0003] Due to the high-precision requirements of the strip usage scenario and the non-permission of appearance defects on the upper and lower surfaces of the strip, the existing production workshops can only conduct visual inspection manually or analyze pictures through an industrial camera combined with an identification system. Such detection efficiency cannot keep up with the production requirements of the unit, with long detection time, low efficiency, and large errors. In response to this, the applicant has proposed an online strip full-automatic eddy current detection device. Content of the Utility Model

[0004] The purpose of the utility model is to provide an online strip full-automatic eddy current detection device to solve the problems encountered in the above background technique.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An online strip full-automatic eddy current detection device includes an operation box. A demagnetizer is installed at the feeding end of the operation box. An upper and lower roll pressing mechanism, a left and right clamping mechanism, and an upper and lower detection probe device are installed inside the operation box. The upper and lower roll pressing mechanism is used to clamp and correct the upper and lower surfaces of the strip. The left and right clamping mechanism is used to clamp the left and right sides of the strip. The strip passes through at least one group of the upper and lower roll pressing mechanism and the left and right clamping mechanism and then enters the upper and lower detection probe device. An upper detection probe assembly and a lower detection probe assembly are installed in the upper and lower detection probe device.

[0007] In the above solution, the demagnetizer includes a demagnetizing body. A material passing port is provided in the middle of the demagnetizing body. A heat dissipation fan is provided at the outer peripheral position of the material passing port. Proximity switches are provided at the upper and lower parts of the feeding end of the material passing port.

[0008] In the above solution, the upper and lower roll pressing mechanism includes an installation frame. A lower roll and an upper roll are installed inside the installation frame. The lower roll and the upper roll are arranged in parallel; the upper roll is movably arranged in the up and down direction inside the installation frame.

[0009] As a preferred solution, a first driving device is provided on the outer side of the installation frame. The first driving device is in transmission connection with the lower roller. A second driving device and a rotating shaft in transmission connection with the second driving device are provided on the top of the installation frame. Both sides of the upper roller are slidably connected inside the installation frame through guide bars. Both sides of the upper roller are in transmission connection with a first transmission lead screw in the vertical direction. The rotating shaft is installed on the top of the installation frame through a bearing seat. The conveying end of the rotating shaft is in transmission connection with the first transmission lead screw through a speed reducer assembly.

[0010] In the above solution, the left and right clamping mechanisms include an installation groove. A second transmission lead screw is installed inside the installation groove. A third driving device in transmission connection with the second transmission lead screw is provided outside the installation groove. A roller mounting seat is installed on the second transmission lead screw through a lead screw nut. Another roller mounting seat is installed at the end of the installation groove. Rollers are rotatably installed in opposite directions inside both roller mounting seats.

[0011] As a preferred solution, both sides of the bottoms of the two roller mounting seats are slidably connected to both sides of the top of the installation groove through linear guides. The wheel body of the roller is of an "I"-shaped structure.

[0012] In the above solution, the up and down detection probe device includes a support frame. Fourth driving devices are installed at both the top and the bottom of the support frame. The fourth driving device at the top is in transmission connection with the upper detection probe assembly. The fourth driving device at the bottom is in transmission connection with the lower detection probe assembly. Probe groups arranged in an array are respectively installed at the working ends of the upper detection probe assembly and the lower detection probe assembly. The upper detection probe assembly and the lower detection probe assembly have the same structure.

[0013] In the above solution, the lower detection probe assembly includes a bottom plate, a support plate and a top plate. The probe is installed in the middle of the top plate. Probe protection rollers are also installed on both sides of the top plate. The four ends of the top of the support plate are elastically connected to the four ends of the bottom of the top plate through floating springs. The bottom of the support plate is movably connected to the bottom plate through a guide rail. The output end of the fourth driving device penetrates through the bottom plate and is in transmission connection with the support plate.

[0014] In one of the embodiments, a label spraying device is further included. The label spraying device is installed at the station after the strip material outputs from the up and down detection probe device.

[0015] In one of the embodiments, a workbench is further included. An electrical cabinet is installed on the top of the operation box. The bottom of the operation box is movably connected to the workbench through an adjustment mechanism.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] By installing an upper and lower roller pressing mechanism, a left and right clamping mechanism, and an upper and lower detection probe device inside the work bin, the upper and lower roller pressing mechanism is used to clamp and correct the upper and lower surfaces of the strip, and the left and right clamping mechanism is used to clamp the left and right sides of the strip. The strip passes through at least one set of upper and lower roller pressing mechanisms and left and right clamping mechanisms and then enters the upper and lower detection probe device. An upper detection probe assembly and a lower detection probe assembly are installed in the upper and lower detection probe device to perform eddy current detection on the upper and lower surfaces of the strip.

[0018] The strip enters the detection equipment through a demagnetizer. To ensure the stability of the strip during the detection process, two sets of upper and lower roller pressing mechanisms and one set of left and right clamping mechanisms are arranged in front of and behind the upper and lower detection probe device. The upper and lower surfaces of the strip are completely covered by the upper and lower array probe groups on the detection surface. Each array probe group has 38 probes arrayed on the upper and lower surfaces respectively, and each single probe covers a detection range with a width of 10 mm. Therefore, using this equipment can be connected to the output station of the strip unit online, perform eddy current detection on the strip in a timely manner, with high working efficiency, small error and high precision, and short eddy current detection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a front view structural schematic diagram of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the demagnetizer in the present utility model;

[0023] Figure 4 is a structural schematic diagram of the upper and lower roller pressing mechanism in the present utility model;

[0024] Figure 5 is a structural schematic diagram of the left and right clamping mechanism in the present utility model;

[0025] Figure 6 is a structural schematic diagram of the upper and lower detection probe device in the present utility model;

[0026] Figure 7 is a structural schematic diagram of the lower detection probe assembly in the present utility model;

[0027] Figure 8 is a structural schematic diagram of the present utility model in another embodiment.

[0028] Reference numerals in the figure: 1 - working box; 11 - electrical cabinet; 12 - adjusting mechanism; 13 - workbench; 2 - demagnetizer; 21 - demagnetizing body; 22 - material passing opening; 23 - cooling fan; 24 - proximity switch; 3 - upper and lower roller pressing mechanism; 31 - mounting frame; 32 - first driving device; 33 - lower roller; 34 - upper roller; 35 - guiding strip; 36 - first driving lead screw; 37 - second driving device; 38 - bearing seat; 39 - rotating shaft; 4 - left and right clamping mechanism; 41 - mounting groove; 42 - third driving device; 43 - linear guide; 44 - roller mounting seat; 45 - second driving lead screw; 46 - roller; 5 - upper and lower detection probe device; 51 - support frame; 52 - upper detection probe assembly; 53 - lower detection probe assembly; 54 - fourth driving device; 55 - bottom plate; 56 - support plate; 57 - top plate; 58 - floating spring; 59 - probe protection roller; 6 - labeling machine. Detailed implementation mode

[0029] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described in detail below with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0030] According to the technical solution of the present utility model, without changing the essence of the present utility model, those of ordinary skill in the art can propose various structural forms and implementation methods that can be mutually replaced. Therefore, the following detailed implementation modes and drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as the whole of the present utility model or regarded as a limitation or restriction on the technical solution of the present utility model.

[0031] The technical solution of the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] Embodiment 1, as Figure 1 and 2 shown, an on-line strip full-automatic eddy current detection device, which is directly connected to the conveying station of the strip on-line for on-line eddy current detection. Specifically, when implemented, the strip full-automatic eddy current detection device is installed at the output station of the strip splicing production unit, and its function is to continuously detect the transverse and longitudinal defects on the upper and lower surfaces of the steel strip on-line.

[0033] The device includes an operation box 1. A demagnetizer 2 is installed at the feeding end of the operation box 1 to remove or weaken the magnetic field in the strip, so as to avoid interfering with the detection probe of this device during eddy current detection. Inside the operation box 1, there are upper and lower roll pressing mechanisms 3, left and right clamping mechanisms 4, and upper and lower detection probe devices 5. The upper and lower roll pressing mechanisms 3 are used to clamp and correct the upper and lower surfaces of the strip, and the left and right clamping mechanisms 4 are used to clamp the left and right sides of the strip. The strip passes through at least one set of upper and lower roll pressing mechanisms 3 and left and right clamping mechanisms 4 and then enters the upper and lower detection probe device 5. An upper detection probe assembly 52 and a lower detection probe assembly 53 are installed in the upper and lower detection probe device 5 to perform eddy current detection on the upper and lower surfaces of the strip.

[0034] During operation, the strip enters the detection device through the demagnetizer 2. To ensure the stability of the strip during detection, two sets of upper and lower roll pressing mechanisms 3 and one set of left and right clamping mechanisms 4 are arranged in front of and behind the upper and lower detection probe device 5. The upper and lower surfaces of the strip are completely covered by the upper and lower array probe groups on the detection surface. Each array probe group has 38 probes arrayed on the upper and lower surfaces respectively, and each single probe covers a detection range with a width of 10 mm. Therefore, using this device can be connected online to the output station of the strip unit, perform eddy current detection on the strip in a timely manner, with high working efficiency, small error, high precision, and short eddy current detection time.

[0035] During implementation, this solution adopts two sets of upper and lower roll pressing mechanisms 3 and one set of left and right clamping mechanisms 4 respectively in the front and back, ensuring that the stability and accuracy are improved when strips such as steel strips and stainless steel strips pass through the probe group.

[0036] This solution adopts regular calibration of strip standard parts. The device has an online working position and a sample calibration position, which are operated and controlled by the operation console. Moreover, the power of the upper and lower pressure rollers in the upper and lower roll pressing mechanisms 3 can be freely switched through electromagnetic clutches. When calibrating the sample, the pressure rollers need to have power to drive the sample to move left and right arbitrarily to verify the accuracy of the detection data and ensure 100% qualified detection.

[0037] Example 2, please refer to Figure 3 , on the basis of Example 1, the demagnetizer 2 includes a demagnetizing body 21. The demagnetizing body 21 is fixed at the feeding end of the operation box 1. A material passing opening 22 is provided in the middle of the demagnetizing body 21. A heat dissipation fan 23 is provided at the outer peripheral position of the material passing opening 22 for cooling the conveyed workpiece. The heat dissipation fan 23 can be arranged on the top of the demagnetizing body 21. Proximity switches 24 are provided at the upper and lower parts of the feeding end of the material passing opening 22 for detecting the input state of the strip.

[0038] Example 3, please refer to Figure 4On the basis of Example 1, the upper and lower roller pressing mechanism 3 includes a mounting frame 31, which is fixed inside the working box 1 and is provided with at least one, the upper and lower parts of the mounting frame 31 are solid plates, and the two sides are side plates, and guide strips 35 are provided on the inner side of the side plates. A lower roller 33 and an upper roller 34 are installed in the mounting frame 31, and the lower roller 33 and the upper roller 34 are arranged in parallel to clamp the conveyed strip material and play a correction role. The upper roller 34 is movably arranged in the upper and lower directions in the mounting frame 31, so that strip materials of different thicknesses can be matched, and all can be corrected by the upper and lower roller pressing mechanism 3.

[0039] As a preferred solution, a first driving device 32 is provided on the outside of the installation frame 31, and the first driving device 32 is a servo motor. The first driving device 32 is connected to the lower roller 33 by transmission, so as to drive the lower roller 33 to rotate and play the role of conveying the strip. A second driving device 37 and a rotating shaft 39 connected to the second driving device 37 by transmission are provided on the top of the installation frame 31. The second driving device 37 is an AC motor. The two sides of the upper roller 34 are slidably connected to the inside of the installation frame 31 through guide strips 35. The two sides of the upper roller 34 are connected to the first transmission screw 36 in the vertical direction by transmission. The first transmission screw 36 and the two sides of the upper roller 34 form a screw nut mechanism. The rotating shaft 39 is installed on the top of the installation frame 31 through a bearing seat 38. The conveying end of the rotating shaft 39 is connected to the first transmission screw 36 by transmission through a reducer assembly. The reducer assembly is equipped with a bevel gear transmission mechanism that converts the transmission in the linear direction into the transmission in the vertical direction, or a worm gear mechanism is used, which can realize the torque transmission function.

[0040] When the strip is conveyed, it passes between the parallel lower roller 33 and upper roller 34 and is continuously conveyed under the rotation of the lower roller 33. In order to match strips of different thicknesses and facilitate eddy current detection, the two sides of the upper roller 34 are designed to have a screw nut mechanism that can move up and down, and under the drive of the second drive device 37, the corresponding up and down movement is achieved.

[0041] See also Figure 5 The left and right clamping mechanisms 4 include a mounting groove 41, which is fixed inside the work box 1 and is provided with at least one. The inner side of the mounting groove 41 is a groove-shaped structure. A second transmission screw 45 is installed inside the mounting groove 41. A third drive device 42 is provided outside the mounting groove 41 and is connected to the second transmission screw 45. The third drive device 42 is a servo motor. A roller mounting seat 44 is installed on the second transmission screw 45 through a screw nut. The screw nut and the second transmission screw 45 inside the third drive device 42 form a screw nut mechanism. Another roller mounting seat 44 is installed at the end of the mounting groove 41. Rollers 46 are rotatably installed in the relative directions of the two roller mounting seats 44. The rollers 46 contact the two ends of the strip so that it can be formally transported and correct its transport direction during transportation.

[0042] As a preferred solution, the bottom sides of the two roller mounting seats 44 are slidably connected to the top sides of the mounting groove 41 through linear guide rails 43, that is, a slider is provided at the bottom of the two roller mounting seats 44, and a slideway is provided at the top of the mounting groove 41. The slider and the slideway constitute a linear guide rail 43, so that the roller mounting seat 44 can play a guiding role when it moves relative to another roller mounting seat 44. The wheel body of the roller 46 is an "I"-shaped structure, which is convenient for clamping the two ends of the strip.

[0043] Example 4, please refer to Figure 6 and Figure 7 On the basis of Example 1, the upper and lower detection probe devices 5 include a support frame 51, which is fixed in the middle position inside the work box 1. The top and bottom of the support frame 51 are both equipped with fourth drive devices 54, which are servo motors. The fourth drive device 54 at the top is connected to the upper detection probe assembly 52 by transmission, and the fourth drive device 54 at the bottom is connected to the lower detection probe assembly 53 by transmission. Among them, the working ends of the upper detection probe assembly 52 and the lower detection probe assembly 53 are respectively equipped with probe groups arranged in an array. In order to facilitate manufacturing, the upper detection probe assembly 52 and the lower detection probe assembly 53 have the same structure.

[0044] Driven by the fourth driving device 54, the upper detection probe assembly 52 and the lower detection probe assembly 53 can be driven to move relative to each other, thereby matching strips of different thicknesses, so that the probes and the product maintain a certain eddy current detection distance. The probe groups arranged in an array constitute a probe group, which can perform eddy current detection on a large area of ​​the strip.

[0045] Since the structures of the upper detection probe assembly 52 and the lower detection probe assembly 53 are the same, only the structure of the lower detection probe assembly 53 is described here so that those skilled in the art can better understand the structure of the upper and lower detection probe device 5 .

[0046] The lower detection probe assembly 53 includes a bottom plate 55, a support plate 56 and a top plate 57. The probe is installed in the middle of the top plate 57. Since there are multiple groups and they are arranged in an array, a probe group is formed. The four ends of the top of the support plate 56 are elastically connected to the four ends of the bottom of the top plate 57 through floating springs 58, which can overcome the risk of hard contact and protect each probe in eddy current detection. The bottom of the support plate 56 is movably connected to the bottom plate 55 through a guide rail, and the output end of the fourth drive device 54 passes through the bottom plate 55 and is connected to the support plate 56 by transmission. When the bottom plate 55 is fixed in the support frame 51, the fourth drive device 54 drives the support plate 56 and the probe group on the support plate 56 to move up and down as a whole during operation, and then approaches the upper and lower surfaces of the strip.

[0047] In addition, to protect the probe from abrasion with the strip workpiece, four probe protection rollers 59 are arranged in front of and behind the probe group, that is, probe protection rollers 59 are also installed on both sides of the top plate 57, so as to maintain a constant gap between the probe and the detection surface.

[0048] This solution uses the upper and lower detection probe device 5 to detect the upper and lower surfaces of the strip at the same time. Probe protection rollers 59 are arranged on both the upper and lower sides, so that the detection distance between the probe and the steel strip surface remains constant, greatly improving the detection accuracy and saving the labor cost and financial cost of the enterprise.

[0049] In addition, this solution adds a fourth drive device 54 to control the flaw detection probe group. When detecting steel strips of different thicknesses and widths, one-key model change can be achieved through the operation console.

[0050] To sum up, in this solution, the upper and lower pressure rollers automatically control the distance between the upper and lower pressure rollers through the motor and the lead screw. And a floating spring is installed on the lead screw of the upper pressure roller 34 to prevent the pressure roller from overloading. The left and right clamping pressure rollers are controlled by a servo motor, and the lead screw is designed as a bidirectional lead screw for automatic centering. In addition, the upper and lower detection probe device 5 can drive the relative movement of the upper detection probe assembly, which can assist the probe group to synchronize the one-key model change, greatly facilitating the online automation.

[0051] Example 5, an online strip full-automatic eddy current detection device, please refer to Figure 2 , and further includes a spray marker 6. The spray marker 6 is used to spray a certain color as a mark. The spray marker 6 is installed at the station after the upper and lower detection probe device 5 of the strip output. When the strip detection is completed, a mark is sprayed at the defective position. After the strip passes through the upper and lower detection probe device 5, the PLC system calculates the conveying distance of the strip through the encoder, so that the spray marker 6 sprays a mark at the defective position.

[0052] Example 6, an online strip full-automatic eddy current detection device, please refer to Figure 8 , and further includes a workbench 13. An electrical cabinet 11 is installed on the top of the operation box 1, which can be used to place the necessary electrical appliances of this equipment and connect them, such as a cooling fan, a soot collection pipeline, etc. The bottom of the operation box 1 is movably connected to the workbench 13 through an adjustment mechanism 12. Under the action of the adjustment mechanism 12, the whole operation box 1 can be driven to move, so as to align the operation box 1 with the conveying station of the strip production unit. Specifically, the material passing port 22 of the demagnetizer 2 is matched with the conveyed strip and inserted smoothly.

[0053] When implementing the adjustment mechanism 12, it can be adjusted by a cylinder cooperating with a guiding component, or a servo motor cooperating with a linear guide rail can be used for adjustment. In order to improve the stability performance in the guiding, a crawler can be carried to facilitate stable movement, and the whole operation box 1 is moved to a suitable position.

[0054] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. These undisclosed elements all belong to the prior art that can be known to those skilled in the art.

[0055] The specific embodiments described above further elaborate on the purpose, technical solutions and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Online strip fully automatic eddy current testing equipment, characterized by: The invention comprises an operation box (1), wherein a demagnetizer (2) is installed at the feeding end of the operation box (1), and an upper and lower rolling mechanism (3), a left and right clamping mechanism (4), and an upper and lower detection probe device (5) are installed inside the operation box (1). The upper and lower rolling mechanism (3) is used to clamp and correct the upper and lower surfaces of the strip, and the left and right clamping mechanism (4) is used to clamp the left and right sides of the strip. The strip passes through at least one set of the upper and lower rolling mechanism (3) and the left and right clamping mechanism (4) and then enters the upper and lower detection probe device (5), and the upper and lower detection probe device (5) is installed with an upper detection probe assembly (52) and a lower detection probe assembly (53).

2. The online strip fully automatic eddy current testing equipment according to claim 1 is characterized in that: The demagnetizer (2) comprises a demagnetizer (21), a feeding port (22) is provided in the middle of the demagnetizer (21), a cooling fan (23) is provided at the periphery of the feeding port (22), and proximity switches (24) are provided at the upper and lower parts of the feeding end of the feeding port (22).

3. The online strip fully automatic eddy current testing equipment according to claim 1 is characterized in that: The upper and lower roller pressing mechanism (3) comprises a mounting frame (31), wherein a lower roller (33) and an upper roller (34) are mounted in the mounting frame (31), wherein the lower roller (33) and the upper roller (34) are arranged in parallel; and the upper roller (34) is movably arranged in the mounting frame (31) in the upper and lower directions.

4. The online strip fully automatic eddy current testing equipment according to claim 3 is characterized in that: A first driving device (32) is provided on the outer side of the installation frame (31), and the first driving device (32) is transmission-connected to the lower roller (33). A second driving device (37) and a rotating shaft (39) transmission-connected to the second driving device (37) are provided on the top of the installation frame (31). Both sides of the upper roller (34) are slidably connected to the inside of the installation frame (31) through guide strips (35). Both sides of the upper roller (34) are transmission-connected to a first transmission screw rod (36) in a vertical direction. The rotating shaft (39) is installed on the top of the installation frame (31) through a bearing seat (38), and a conveying end of the rotating shaft (39) is transmission-connected to the first transmission screw rod (36) through a reducer assembly.

5. The online strip fully automatic eddy current testing equipment according to claim 1 is characterized in that: The left and right clamping mechanisms (4) comprise a mounting groove (41), a second transmission screw (45) is mounted inside the mounting groove (41), a third driving device (42) is provided on the outer side of the mounting groove (41) and is transmission-connected to the second transmission screw (45), a roller mounting seat (44) is mounted on the second transmission screw (45) via a screw nut, another roller mounting seat (44) is mounted at the end of the mounting groove (41), and rollers (46) are rotatably mounted inside the two roller mounting seats (44) in opposite directions.

6. The online strip fully automatic eddy current testing equipment according to claim 5 is characterized in that: The bottom sides of the two roller mounting seats (44) are slidably connected to the top sides of the mounting groove (41) via linear guide rails (43), and the wheel body of the roller (46) is an "I"-shaped structure.

7. The online strip fully automatic eddy current testing equipment according to claim 1 is characterized in that: The upper and lower detection probe devices (5) comprise a support frame (51), and fourth drive devices (54) are installed at the top and bottom of the support frame (51), the fourth drive device (54) at the top is transmission-connected to the upper detection probe assembly (52), and the fourth drive device (54) at the bottom is transmission-connected to the lower detection probe assembly (53); the working ends of the upper detection probe assembly (52) and the lower detection probe assembly (53) are respectively installed with probe groups arranged in an array; the upper detection probe assembly (52) and the lower detection probe assembly (53) have the same structure.

8. The online strip fully automatic eddy current testing equipment according to claim 7 is characterized in that: The lower detection probe assembly (53) comprises a bottom plate (55), a support plate (56) and a top plate (57); the probe is mounted in the middle of the top plate (57); probe protection rollers (59) are mounted on both sides of the top plate (57); the top four ends of the support plate (56) are elastically connected to the bottom four ends of the top plate (57) via floating springs (58); the bottom of the support plate (56) is movably connected to the bottom plate (55) via a guide rail; and the output end of the fourth driving device (54) passes through the bottom plate (55) and is transmission-connected to the support plate (56).

9. The online strip fully automatic eddy current testing equipment according to claim 1 is characterized in that: It also includes a marking sprayer (6), which is installed at a workstation after the strip outputs the upper and lower detection probe devices (5).

10. The online strip fully automatic eddy current testing equipment according to claim 9, characterized in that: It also comprises a workbench (13), an electrical cabinet (11) is installed on the top of the work box (1), and the bottom of the work box (1) is movably connected to the workbench (13) via an adjustment mechanism (12).

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