Copper plate defect detection device and inspection method

Abstract

The present application relates to the field of copper plate detection, and specifically discloses a copper plate defect detection device and inspection method, which includes a movable carrier for forming a bearing surface that moves along a preset direction; an elastomer installed on the bearing surface and used to form a control chamber and a deformation surface that can deform when the pressure in the control chamber increases or decreases; a driving member for injecting or extracting a fluid medium into or out of the control chamber to increase or decrease the pressure in the control chamber; a fixed frame and a flaw detector, the flaw detector is installed on the fixed frame; the flaw detector is arranged above the movable carrier. The present application has the effect of using an elastomer to support the copper plate to be detected, preventing the copper plate to be detected from undergoing slight deformation, and improving the accuracy of defect detection.

Description

Technical Field

[0001] The present application relates to the field of copper plate detection, and in particular to a copper plate defect detection device and inspection method. Background Art

[0002] Copper plate defect detection is to detect defects on the surface of copper plates, such as fine scratches, excessive roughness, and excessive flatness.

[0003] In the prior art, the commonly used detection method is mainly to use a flaw detector to move on the surface of the copper plate to be tested. The flaw detector can issue an alarm or directly upload the defect situation to the cloud when a defect is detected on the surface of the copper plate to be tested.

[0004] The method of using a flaw detector to perform defect detection on a copper plate to be detected is mainly to place the copper plate to be detected on a carrier for support, and then use the flaw detector to press the copper plate to be detected and move on the copper plate to be detected.

[0005] Since the carrier used to support the copper plate to be tested is difficult to form a completely flat plane, there will be multiple tiny depressions on the surface used to support the copper plate to be tested, which will cause some positions of the copper plate to be tested to be unable to be supported when it is supported. After the flaw detector is pressed on the copper plate to be tested, the copper plate to be tested will be prone to slight deformation, which will ultimately affect the defect detection results of the copper plate to be tested. Summary of the invention

[0006] In order to improve the problem that the deformation of the copper plate to be inspected affects the defect detection result, the present application provides a copper plate defect detection device and inspection method.

[0007] The present application provides a copper plate defect detection device and inspection method using the following technical solutions:

[0008] The first object of the present invention is to provide a copper plate defect detection device, characterized in that it includes: a movable carrier for forming a bearing surface that moves along a preset direction; an elastomer installed on the bearing surface and used to form a control chamber and a deformation surface that can deform when the pressure in the control chamber increases or decreases; a driving member for injecting or extracting a fluid medium into or out of the control chamber to increase or decrease the pressure in the control chamber; a fixed frame and a flaw detector, the flaw detector being installed on the fixed frame; the flaw detector is arranged above the movable carrier; wherein a plurality of limit portions protruding relative to the deformation surface are formed on the deformation surface, and the plurality of limit portions and the deformation surface are combined to form an installation area for placing the copper plate to be detected; when the flaw detector abuts against the surface to be detected of the copper plate to be detected, the movable carrier moves along the preset direction.

[0009] By adopting the above technical solution, the position of the flaw detector is fixed, and the copper plate to be detected moves with the movable carrier, thereby realizing the detection of defects in the copper plate to be detected. In addition, the common detection method is that the flaw detector moves, and the copper plate to be detected is fixed. The present application fixes the position of the flaw detector, which facilitates the connection and placement of the external circuit of the flaw detector.

[0010] The copper plate to be detected is installed by an elastomer, and the elastomer can expand and contract. When the elastomer supports the copper plate to be detected, the elastomer will be deformed because the steel plate to be detected is placed on the elastomer. At the same time, the degree of expansion inside the elastomer is controlled, so that the elastomer can be completely in contact with the copper plate to be detected, and the supporting force applied to the copper plate to be detected at any position of the elastomer in contact with the copper plate to be detected is fixed. In this way, the copper plate to be detected can be better supported. Since the common technology directly supports the copper plate to be detected by facing the copper plate to be detected, but since the copper plate to be detected itself has defects, and the surface used to support the copper plate to be detected is also difficult to be flat, it will cause the copper plate to be detected to be unevenly stressed, and it is easy to increase defects, so it will lead to poor detection effect. However, the present application uses the expansion of the elastomer to support each position of the copper plate to be detected, and ensures the same supporting force, avoiding the problem of additional defects of the copper plate to be detected due to support, and improving the accuracy of detection.

[0011] In addition, the elastomer supports the copper plate to be inspected. Since the elastomer can expand and contract, the elastomer can be expanded until the flaw detector contacts the copper plate to be inspected. The copper plate to be inspected applies a greater pressure to the flaw detector. Since the flaw detector moves on the copper plate to be inspected, it can detect defects in the copper plate to be inspected, and the flaw detector needs to be pressed on the copper plate to be inspected. Therefore, the expansion of the elastomer can enable the flaw detector to apply pressure to the copper plate to be inspected, thereby achieving a pressing effect and better detecting defects in the copper plate to be inspected.

[0012] Among them, because the elastic body used can expand and contract, when the flaw detector contacts the copper plate to be detected, the end of the copper plate to be detected that contacts the flaw detector can sink, and the other end can rise. At this time, the pressure on the flaw detector can be controlled to avoid excessive pressure. At this time, the copper plate to be detected is tilted relative to the horizontal plane, so that the copper plate to be detected can be better contacted with the flaw detector. Even if the flaw detector is not installed correctly and is slightly tilted, it can ensure normal detection of the copper plate to be detected.

[0013] Optionally, the detection device also includes: a connecting piece, which is used to hinge the middle part of the copper plate to be detected with the middle part of the deformation surface; the projection figure of the copper plate to be detected on a horizontal plane is completely located inside the projection figure of the deformation surface on the horizontal plane.

[0014] By adopting the above technical solution, the copper plate to be detected can be connected to the elastic body when it is placed on the elastic body, avoiding the copper plate to be detected from slipping relative to the elastic body due to the small friction between the copper plate to be detected and the elastic body when the copper plate to be detected moves. And when the copper plate to be detected tilts on the elastic body, the copper plate to be detected is prevented from slipping, so as to better realize the defect detection of the copper plate to be detected.

[0015] Optionally, the connecting member includes: a mounting portion and a connecting portion; the mounting portion is fixed to the connecting portion, and the mounting portion is used to form a mounting surface fixed to the copper plate to be detected; a rigid portion for setting the connecting portion is formed on the deformation surface; a rigid surface for fixing to the connecting portion is formed on the rigid portion; when the mounting portion is fixed to the copper plate to be detected, the mounting surface completely covers the rigid surface.

[0016] By adopting the above technical solution, the installation part, the connection part and the rigid part are mainly set to fix the copper plate to be detected relative to a part of the elastic body. The rigid part formed on the deformation surface is to better install the connection part and improve the stable support of the connection part relative to the elastic body. The purpose of the installation surface completely covering the rigid surface is to make the deformation surface contact with the copper plate to be detected.

[0017] Optionally, the elastomer includes: a containing box, a first stopper, a second stopper and an elastic membrane; the containing box is used to form a containing chamber with an opening at one end; the elastic membrane is sealed at the opening; the first stopper is used to form an annular limiting area above the containing box, so that the elastic membrane is located in the annular limiting area when it expands; the second stopper is used to form a blocking surface on the upper part of the annular limiting area; the blocking surface is connected to the annular limiting area and the blocking surface forms a passage gap connected to the annular area; when the copper plate to be detected is fixed to the mounting portion, part of the elastic membrane expands outward along the passage gap, so that the mounting portion is located in the upper part of the passage gap.

[0018] By adopting the above-mentioned technical solution, the use of the setting of the containing box and the elastic membrane is to make the elastic membrane deform only in one direction, and the other directions are restricted by the containing box, so that a small amount of fluid medium can be used to control the deformation of the elastic membrane, that is, the elastomer, and thus the speed of controlling the expansion of the elastic membrane is greatly improved. The setting of the first stopper and the second stopper is mainly to further restrict the direction in which the elastic membrane deforms, so as to better realize the rapid control of the expansion of the elastic membrane. Due to the restrictions of the first stopper and the second stopper, when the copper plate to be tested is squeezed by the flaw detector, the elastic membrane can be directly deformed inside, preventing the elastomer from deforming itself in other directions, resulting in insufficient support force provided by the elastomer to the steel plate to be tested, thereby better realizing that the elastomer applies a controllable support force to the steel plate to be tested, and better realizing that the flaw detector and the copper plate to be tested are abutted and pressed.

[0019] Optionally, a mounting bracket is provided on the flaw detector, and the flaw detector is connected to the fixing bracket via the mounting bracket; the mounting bracket is rotatably connected to the fixing bracket so that the flaw detector abuts against the copper plate when the copper plate is tilted.

[0020] By adopting the above-mentioned technical scheme, the flaw detector can rotate relative to the fixed frame. Since the copper plate to be inspected will be supported by the elastic membrane, when the flaw detector presses the copper plate to be inspected, the copper plate to be inspected will tilt, so that the force on the copper plate to be inspected is evenly distributed. The inclination of the copper plate to be inspected cooperates with the rotation adjustment position of the flaw detector, so that the flaw detector can better detect defects in the copper plate to be inspected.

[0021] Optionally, an elastic structure is provided in the annular region, the elastic structure is used to contact the elastic membrane, and the volume of the elastic structure decreases after being acted upon by an external force.

[0022] By adopting the above technical solution, the elastic structure can be set to apply elastic force to the fluid medium inside the accommodating chamber. In some cases, if the fluid medium cannot be compressed, the elastic structure can be deformed to apply force to the elastic membrane through the fluid medium. In some cases, the fluid medium can be compressed, and the elastic structure can also increase the force applied by the fluid medium to the elastic membrane.

[0023] Optionally, the flow medium is a liquid.

[0024] Optionally, a lifting drive structure is provided on the fixing frame, and the lifting drive structure is used to directly or indirectly move the flaw detector up or down.

[0025] By adopting the above technical solution, the lifting structure is used to adjust the degree to which the flaw detector is pressed on the copper plate to be tested, so as to avoid the flaw detector being pressed too high on the copper plate, which may cause damage to the flaw detector.

[0026] Optionally, a coupling portion is provided on the side of the elastic membrane in contact with the accommodating chamber; a distance control structure is provided in the accommodating chamber, and the distance control structure is used to adjust the maximum distance between the coupling portion and the bottom surface of the accommodating chamber; a plurality of coupling portions are provided, and the plurality of coupling portions are distributed along the length direction of the steel plate to be tested; the coupling portion is provided at different positions between the elastic membrane and the copper plate to be tested.

[0027] By adopting the above technical solution, the arrangement of multiple distance control structures and joints can prevent the elastic membrane from expanding and prevent the elastic membrane at the edge of the copper plate to be detected from expanding upward to above the copper plate to be detected.

[0028] The second object of the present invention is to provide an inspection method using the above-mentioned copper plate defect detection device, including: placing a copper plate to be inspected on the deformation surface of an elastic body; using a driving member to inject a fluid medium into a control chamber to expand the elastomer until the copper plate to be inspected abuts against a flaw detector; driving the elastomer to move by a movable carrier to make the copper plate to be inspected on the elastomer and the flaw detector move relative to each other; using a driving member to control the degree of expansion of the elastomer and control the degree of abutment between the copper plate to be inspected and the flaw detector.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. Use an elastic body to support the copper plate to be tested. The elastic body can be deformed by external force. Therefore, when the copper plate to be tested is placed on the elastic body, the elastic body can completely contact with the copper plate to be tested by deformation, better support the copper plate to be tested, prevent the copper plate to be tested from slight deformation, and improve the accuracy of defect detection;

[0031] 2. The elastic deformation of the elastomer is used to make the elastomer fully fit the copper plate to be tested. At the same time, the deformation of the elastomer can also be used to provide the pressure required for the flaw detector to press the copper plate to be tested, so as to adjust the pressure of the flaw detector pressing the copper plate to be tested and better realize the defect detection of the copper plate to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0033] Figure 2 yes Figure 1 A magnified view of part A;

[0034] Figure 3 yes Figure 1 A magnified view of part B;

[0035] Figure 4It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the movable carrier, the fixing frame and some surrounding parts in the embodiment 1;

[0036] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fixing frame, the flaw detector and some surrounding parts;

[0037] Figure 6 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the movable carrier, the fixing frame and some surrounding parts in Embodiment 2;

[0038] Figure 7 It is a structural diagram of a part of the embodiment, mainly showing Figure 6 A partial schematic structure of a movable carrier;

[0039] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the driving member and the containing box;

[0040] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the elastic structure;

[0041] Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure inside the containing box;

[0042] Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 8 structure;

[0043] Fig.12 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the movable carrier and the fixed frame in Embodiment 6;

[0044] Fig.13 It is a structural schematic diagram of a part of the embodiment, mainly showing the cross-sectional structure of the containing box;

[0045] Fig.14 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig.13 structure;

[0046] Fig.15 It is a structural diagram of a part of the embodiment, mainly showing Fig.13 The structure of the elastic membrane and the copper plate to be tested when the elastic membrane expands;

[0047] Fig.16 It is a structural diagram of a part of the embodiment, mainly showing Fig.13 Another perspective of the cross-sectional structure;

[0048] Fig.17 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig.16 structure;

[0049] Fig.18 It is a structural schematic diagram of a part of the embodiment, mainly showing a flow chart of the copper plate defect inspection method.

[0050] Reference numerals:

[0051] 1. Movable carrier; 11. Power control cabinet; 12. Winch; 13. Guide rail; 14. Slider; 15. Mobile frame; 16. Control rope;

[0052] 2. elastic body; 21. deformation surface; 22. position limiting part; 23. containing box; 231. containing chamber; 232. partition; 233. liquid storage chamber; 234. passage gap; 24. first stopper; 25. second stopper; 26. elastic membrane; 27. elastic structure; 271. air pump; 272. main pipeline; 273. branch pipeline; 274. hollow balloon;

[0053] 3. Driving parts;

[0054] 4. Fixed frame; 41. Mounting frame; 42. Lifting drive structure;

[0055] 5. Flaw detector;

[0056] 6. Connecting member; 61. Mounting portion; 62. Connecting portion; 63. Mounting surface; 64. Rigid portion; 65. Rigid surface;

[0057] 7. Rotating motor; 71. Winding roller; 72. Rope;

[0058] 8. Copper plate to be tested. DETAILED DESCRIPTION

[0059] The following is combined with Figure 1-18 This application is described in further detail. Example 1

[0060] Refer to the attached Figure 4-5 , a copper plate defect detection device includes: a movable carrier 1, an elastic body 2, a driving member 3, a fixing frame 4 and a flaw detector 5.

[0061] In this embodiment, the movable carrier 1 adopts a vehicle body, and a bearing surface is formed on the movable carrier 1. When the movable carrier 1 moves along a preset direction, the movable carrier 1 is used to form a bearing surface that moves along the preset direction. The elastomer 2 is installed on the bearing surface and is used to form a control chamber and a deformation surface 21 that can deform when the pressure in the control chamber increases or decreases. In this embodiment, the elastic member preferably adopts a balloon, and the outer surface of the balloon is the deformation surface 21. The elastomer 2 is arranged on the bearing surface of the movable carrier 1. The driving member 3 is used to inject or extract the fluid medium into or out of the control chamber to increase or decrease the pressure of the control chamber. The driving member 3 adopts an air pump 271 in this embodiment. The air pump 271 has the function of injecting and exhausting air, so that the elastic member and the collision and contraction are achieved by injecting air into the elastic member.

[0062] The copper plate 8 to be detected is installed by the elastic body 2 and the elastic body 2 can expand and contract. Then, when the elastic body 2 supports the copper plate 8 to be detected, the elastic body 2 will be deformed because the steel plate to be detected is placed on the elastic body 2. At the same time, the degree of expansion inside the elastic body 2 is controlled, so that the elastic body 2 can be completely in contact with the copper plate 8 to be detected, and the supporting force applied to the copper plate 8 to be detected at any position of the elastic body 2 in contact with the copper plate 8 to be detected is fixed. Thus, the copper plate 8 to be detected is better supported. Since the common technology directly supports the copper plate 8 to be detected, but since the copper plate 8 to be detected itself has defects, and the surface used to support the copper plate 8 to be detected is also difficult to be flat, it will cause the copper plate 8 to be detected to be unevenly stressed, and it is easy to increase defects, so it will lead to poor detection effect. However, the present application uses the expansion of the elastic body 2 to support each position of the copper plate 8 to be detected, and ensures the same supporting force, avoiding the problem of additional defects of the copper plate 8 to be detected due to support, and improving the accuracy of detection. In addition, the elastomer 2 supports the copper plate 8 to be inspected. Since the elastomer 2 can expand and contract, the elastomer 2 can be expanded until the flaw detector 5 contacts the copper plate 8 to be inspected. The copper plate 8 to be inspected applies a large pressure to the flaw detector 5. Since the flaw detector 5 moves on the copper plate 8 to be inspected, the defects of the copper plate 8 to be inspected can be detected, and the flaw detector 5 needs to be pressed on the copper plate 8 to be inspected, the expansion of the elastomer 2 can enable the flaw detector 5 to apply pressure to the copper plate 8 to be inspected, thereby achieving a pressing effect and better detecting defects in the copper plate 8 to be inspected.

[0063] Among them, since the elastic body 2 used can expand and contract, when the flaw detector 5 contacts the copper plate 8 to be detected, the end of the copper plate 8 to be detected that contacts the flaw detector 5 can sink, and the other end can rise. At this time, the pressure on the flaw detector 5 can be controlled to avoid excessive pressure. At this time, the copper plate 8 to be detected is inclined relative to the horizontal plane, so that the copper plate 8 to be detected can be better contacted with the flaw detector 5. Even if the flaw detector 5 is not installed correctly and is slightly tilted, it can ensure that the copper plate 8 to be detected can be detected normally.

[0064] The flaw detector 5 is mounted on the fixing frame 4, and the fixing frame 4 is fixed relative to the ground. The flaw detector 5 is arranged above the movable carrier 1. Among them, a plurality of limiting portions 22 protruding relative to the deformation surface 21 are formed on the deformation surface 21, and a plurality of the limiting portions 22 are combined with the deformation surface 21 to form an installation area for placing the copper plate 8 to be detected. The limiting portion 22 is a convex block, and the convex block is fixed on the deformation surface 21, so that after the copper plate 8 to be detected is placed on the deformation surface 21, the convex block can limit the copper plate to prevent the copper plate 8 to be detected from slipping.

[0065] When the flaw detector 5 abuts against the surface to be detected of the copper plate 8 to be detected, the movable carrier 1 moves along a preset direction. The position of the flaw detector 5 is fixed, and the copper plate 8 to be detected moves with the movable carrier 1, thereby realizing the detection of defects of the copper plate 8 to be detected. In addition, the common detection method is that the flaw detector 5 moves, and the copper plate 8 to be detected is fixed. The present application facilitates the connection and placement of the external circuit of the flaw detector 5 by fixing the position of the flaw detector 5.

[0066] Specifically, a mounting frame 41 is provided on the flaw detector 5, and the flaw detector 5 is connected to the fixed frame 4 through the mounting frame 41; the mounting frame 41 is rotatably connected to the fixed frame 4, so that the flaw detector 5 abuts against the copper plate when the copper plate is tilted. The flaw detector 5 can rotate relative to the fixed frame 4. Since the copper plate 8 to be detected is supported by the elastic membrane 26, when the flaw detector 5 presses the copper plate 8 to be detected, the copper plate 8 to be detected is tilted, so that the force on the copper plate 8 to be detected is uniform, and the tilt of the copper plate 8 to be detected cooperates with the rotation adjustment position of the flaw detector 5, so that the flaw detector 5 can better realize the defect detection of the copper plate 8 to be detected by the flaw detector 5. Example 2

[0067] See attached Figure 5-11, 13-17, the difference from Example 1 is that: the elastic body 2 includes: a containing box 23, a first stopper 24, a second stopper 25 and an elastic membrane 26. The containing box 23 is used to form a containing chamber 231 with an opening at one end, and the containing box 23 is a rigid structure. The elastic membrane 26 is sealed at the opening; the first stopper 24 is used to form an annular limiting area above the containing box 23, so that the elastic membrane 26 is located in the annular limiting area when it expands; the second stopper 25 is used to form a blocking surface at the upper part of the annular limiting area; the blocking surface is connected with the annular limiting area and the blocking surface forms a passage gap 234 connected to the annular area; when the copper plate 8 to be detected is fixed to the mounting portion 61, part of the elastic membrane 26 expands outward along the passage gap 234, so that the mounting portion 61 is located at the upper part of the passage gap 234. Among them, the first stopper 24 and the second stopper 25 are both plates. The purpose of using the containing box 23 and the elastic membrane 26 is to make the elastic membrane 26 deform in only one direction, and the other directions are restricted by the containing box 23, so that a small amount of fluid medium can be used to control the deformation of the elastic membrane 26, i.e., the elastic body 2, and thus the speed of controlling the expansion of the elastic membrane 26 is greatly improved. The first stopper 24 and the second stopper 25 are mainly used to further restrict the direction in which the elastic membrane 26 deforms, and to better achieve rapid control of the expansion of the elastic membrane 26. Due to the restrictions of the first stopper 24 and the second stopper 25, when the copper plate 8 to be tested is squeezed by the flaw detector 5, the inside of the elastic membrane 26 can be directly deformed, and the elastic membrane 26 is prevented from deforming itself in other directions, resulting in insufficient support provided by the elastic membrane 26 to the steel plate to be tested, thereby better achieving the controllable support force applied by the elastic body 2 to the steel plate to be tested, and better achieving the contact and pressing of the flaw detector 5 and the copper plate 8 to be tested.

[0068] Specifically, the detection device also includes: a connecting member 6, the connecting member 6 is used to hinge the middle part of the copper plate 8 to be detected with the middle part of the deformation surface 21; the projection figure of the copper plate 8 to be detected on a horizontal plane is completely located inside the projection figure of the deformation surface 21 on the horizontal plane. The connecting member 6 includes: a mounting portion 61 and a connecting portion 62. The mounting portion 61 is fixed to the connecting portion 62, and the mounting portion 61 is used to form a mounting surface 63 fixed to the copper plate 8 to be detected; a rigid portion 64 for setting the connecting portion 62 is formed on the deformation surface 21; a rigid surface 65 for fixing to the connecting portion 62 is formed on the rigid portion 64; when the mounting portion 61 is fixed to the copper plate 8 to be detected, the mounting surface 63 completely covers the rigid surface 65. Among them, the mounting portion 61 adopts one of a clamp and a vacuum suction cup to achieve the fixing of the mounting portion 61 and the copper plate 8 to be detected. The rigid part 64 is a rigid plate fixedly disposed on the deformation surface 21 , and the connecting part 62 is used to fix the mounting part 61 to the rigid part 64 . In some cases, the connecting part 62 is glue, a buckle or a screw nut.

[0069] The installation part 61, the connection part 62 and the rigid part 64 are mainly arranged to fix the copper plate 8 to be detected relative to a part of the elastomer 2. The rigid part 64 formed on the deformation surface 21 is to better install the connection part 62 and improve the stable support of the connection part 62 relative to the elastomer 2. The purpose of the installation surface 63 completely covering the rigid surface 65 is to make the deformation surface 21 contact with the copper plate 8 to be detected. Thus, the rigid part 64 is in contact with the deformation surface 21, and the force area of ​​the rigid part 64 is increased by the rigid surface 65 of the rigid part 64, so that when the elastomer 2 expands, the rigid part 64 can have more support area, so that the force of the rigid part 64 will be more stable, and the support force can be more stably applied to the connection part 62 and the installation part 61, so as to better support the copper plate 8 to be detected. At the same time, it can further prevent the copper plate 8 to be detected from slipping on the elastomer 2.

[0070] Specifically, an elastic structure 27 is provided in the annular region, and the elastic structure 27 is used to contact the elastic membrane 26, and the volume of the elastic structure 27 becomes smaller after being acted upon by an external force. The provision of the elastic structure 27 can realize the application of elastic force to the fluid medium inside the accommodating chamber 231. In some cases, if the fluid medium cannot be compressed, the elastic structure 27 can be used to deform to apply force to the elastic membrane 26 through the fluid medium. In some cases, the fluid medium can be compressed, and the elastic structure 27 can also increase the force applied by the fluid medium to the elastic membrane 26. In this solution, the elastic structure 27 is a solid rubber ball or a hollow balloon 274. Since the solid rubber ball has elasticity, the solid rubber ball can be deformed by an external force.

[0071] More specifically, in other schemes, the elastic structure 27 also includes: an air pump 271, a main pipeline 272 and a branch pipeline 273; in this scheme, the elastic structure 27 also includes a hollow balloon 274. A plurality of hollow balloons 274 are provided, and the number of branch pipelines 273 matches the number of hollow balloons 274. The main pipeline 272 is connected to a plurality of branch pipelines 273, and the air pump 271 is provided on the containing box 23, and the air pump 271 is used to inject air into the hollow balloon 274 through the main pipeline 272 and the branch pipeline 273. Therefore, the size change of the initial state of the hollow balloon 274 can be achieved. In actual use, the size of the initial state of the hollow balloon 274 can also be changed so that when the hollow balloon 274 is compressed by an external force, a reaction force is provided for the fluid medium, so that the degree of expansion of the elastic membrane 26 is easier to control.

[0072] The expansion degree of the elastic membrane 26 is easier to control. It means that when the driving member 3 is used to inject air into the containing box 23, the elastic membrane 26 will expand outward. When the driving member 3 adopts a corresponding pump body, a large amount of air will be added into the containing box 23 due to the activation of the pump body. Therefore, in actual use, after the air is injected into the containing box 23, if it is found that the expansion degree of the elastic membrane 26 is insufficient during use, it is necessary to restart the driving member 3 to inject air into the containing box 23. However, the activation of the driving member 3 cannot add a small amount of air or a controllable small amount of air into the containing box 23. In order to solve this problem, it is generally necessary to first deflate the containing box 23 in large quantities, and then inject air using the driving member 3. Therefore, the expansion degree of the elastic membrane 26 cannot be easily controlled.

[0073] When the elastic film 26 is not expanded enough, it means that after the elastic film 26 is expanded, the pressure of the flaw detector 5 on the copper plate 8 to be detected is insufficient. When the pressure of the flaw detector 5 on the copper plate is insufficient, the defect detection result will be inaccurate, and when the pressure of the flaw detector 5 on the copper plate 8 to be detected is too high, it is easy to cause the flaw detector 5 to be damaged. Therefore, it is necessary to make the expansion degree of the elastic film 26 easier to control, and at the same time, it is convenient to quickly adjust the expansion degree of the elastic film 26, so as to quickly reach the normal use state of the flaw detector 5 when detecting the copper plate 8 to be detected, which is conducive to improving the speed of defect detection. Example 3

[0074] The difference from Example 2 is that the fluid medium is liquid. A partition 232 is provided in the containing box 23, and above the partition 232 is a containing chamber 231. By controlling the pressure change of the containing chamber 231, the elastic membrane 26 is expanded or contracted. Below the partition 232 is a liquid storage chamber 233. In this embodiment, the driving member 3 is a liquid pump, one end of the liquid pump is connected to the liquid storage chamber 233 through a hose, and the other end of the liquid pump is connected to the containing chamber 231 through a hose, so that the liquid in the liquid storage chamber 233 is added to the containing chamber 231, and the elastic membrane 26 is expanded.

[0075] Since liquid is difficult to be compressed, the expansion of the elastic membrane 26 is not caused by direct compression of the fluid medium, but is caused by the increase of the fluid medium in the accommodating chamber 231 .

[0076] Since the fluid medium cannot be compressed, when the flaw detector 5 is pressed on the copper plate 8 to be detected, the elastic membrane 26 will deform to the side due to its own elasticity to provide a variable support force for the copper plate 8 to be detected. However, this support force is related to the toughness of the material of the elastic membrane 26 itself, so it will become weaker and weaker as the use time increases. Therefore, the elastic structure 27 set at this time can not only apply external force to the elastic membrane 26 through the fluid medium, but also avoid the situation where the support force is weakened due to aging of the material of the elastic membrane 26 itself. Example 4

[0077] Refer to the attached Figure 5 , which is different from the embodiment 1 in that: a lifting drive structure 42 is provided on the fixing frame 4, and the lifting drive structure 42 is used to directly or indirectly move the flaw detector up or down. In this solution, the lifting drive structure 42 adopts one of a cylinder, a hydraulic cylinder and an electric push rod. The lifting structure is used to adjust the degree to which the flaw detector 5 is pressed on the copper plate 8 to be detected, so as to avoid the flaw detector 5 being pressed too high on the copper plate, resulting in damage to the flaw detector 5. Example 5

[0078] Refer to the attached Fig.10 , 13 , which is different from Example 1 in that: a joint is provided on the side of the elastic membrane 26 in contact with the accommodating chamber 231; a distance control structure is provided in the accommodating chamber 231, and the distance control structure is used to adjust the maximum distance between the joint and the bottom surface of the accommodating chamber 231; a plurality of joints are provided, and the plurality of joints are distributed along the length direction of the steel plate to be detected; the joint is provided at different positions between the elastic membrane 26 and the copper plate 8 to be detected. The provision of multiple distance control structures and joints can prevent the position of the elastic membrane 26 from expanding, and prevent the elastic membrane 26 at the edge of the copper plate 8 to be detected from expanding upward to above the copper plate 8 to be detected.

[0079] The distance control structure includes a rotary motor 7, a winding roller 71 and a rope 72. The rope 72 is fixed on the winding roller 71, the selection motor is installed on the accommodating box 23, and the rotary motor 7 is used to drive the winding roller 71 to rotate. The rope 72 is fixed to the elastic membrane 26 through a joint. The joint adopts a hook in this embodiment, the hook is fixed to the elastic membrane 26, and the rope 72 is fixed to the hook. The driving motor drives the winding roller 71 to rotate to realize the release and reeling of the rope 72, so that the length of the rope 72 outside changes, that is, the maximum distance from the joint to the bottom surface of the accommodating chamber 231 is changed. Example 6

[0080] Refer to the attached Figure 1-3 ,12, which is different from Example 1 in that: the movable carrier 1 includes: a power control cabinet 11, a winch 12, a guide rail 13, a slider 14, a mobile frame 15 and a control rope 16. Among them, the power control cabinet 11 is placed on the bottom surface, the guide rail 13 is fixedly set on the power control cabinet 11, and the fixed frame 4 is fixedly set on the power control cabinet 11. The slider 14 is slidably connected to the guide rail 13, and the mobile frame 15 is fixedly set on the slider 14. The accommodating box 23 is set on the mobile frame 15. The winch 12 is set on the power control cabinet 11. The winch 12 is connected to the mobile frame 15 through the control rope 16, and the winch 12 drives the mobile frame 15 to move through the control rope 16. Example 7

[0081] Refer to the attached Fig.18 This embodiment mainly discloses an inspection method using the copper plate defect detection device of embodiments 1-6, including: placing the copper plate 8 to be inspected on the deformation surface 21 of the elastic body 2; using the driving member 3 to inject the fluid medium into the control chamber to make the elastomer 2 expand until the copper plate 8 to be inspected abuts against the flaw detector 5; driving the elastomer 2 to move by the movable carrier 1, so that the copper plate 8 to be inspected on the elastomer 2 and the flaw detector 5 move relative to each other; using the driving member 3 to control the degree of expansion of the elastomer 2, and control the degree of abutment between the copper plate 8 to be inspected and the flaw detector 5.

[0082] The implementation principle of a copper plate defect detection device and inspection method in the embodiment of the present application is:

[0083] The copper plate 8 to be tested is placed on the elastic film 26, specifically between the plurality of limit portions 22 on the elastic film 26, to prevent the copper plate 8 from slipping. Then the copper plate 8 to be tested is pressed downward with force, so that the copper plate 8 to be tested is fixed by adsorption with the vacuum suction cup.

[0084] The driving member 3 is used to control the amount of the fluid medium in the accommodating chamber 231, so that the elastic membrane 26 will expand outward to different degrees, and then lift up the copper plate 8 to be inspected, and then the movable carrier 1 moves to make the flaw detector 5 contact with the copper plate 8 to be inspected, and the flaw detector 5 presses the copper plate 8 to be inspected.

[0085] The flaw detector 5 presses the copper plate 8 to be detected. Since the elastic membrane 26 can be deformed, the position and height of the flaw detector 5 can be controlled to achieve different forces of the flaw detector 5 pressing on the copper plate 8 to be detected. The force of the flaw detector 5 pressing on the copper plate 8 to be detected is controlled by utilizing the degree of expansion of the elastic membrane 26, and the movable carrier 1 moves, thereby achieving indirect movement of the flaw detector 5 on the copper plate 8 to be detected.

[0086] When the flaw detector 5 is pressed on the copper plate 8 to be inspected, the elastic membrane 26 provides a uniform supporting force to the copper plate 8 to be inspected, thereby preventing the copper plate 8 to be inspected from having defects or enlarging defects due to support problems, thereby increasing the effect of defect detection.

[0087] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A copper plate defect detection device, characterized in that: include: A movable carrier, used to form a bearing surface that moves along a preset direction; An elastic body, mounted on the bearing surface, and used to form a control chamber and a deformation surface capable of deforming when the pressure in the control chamber increases or decreases; A driving member, used to inject or extract a fluid medium into or out of the control chamber to increase or decrease the pressure of the control chamber; A fixed frame and a flaw detector, wherein the flaw detector is mounted on the fixed frame; the flaw detector is arranged above the movable carrier; Wherein, a plurality of limiting portions protruding relative to the deformation surface are formed on the deformation surface, and the plurality of limiting portions and the deformation surface are combined to form an installation area for placing the copper plate to be detected; When the flaw detector abuts against the surface to be inspected of the copper plate to be inspected, the movable carrier moves along a preset direction; The detection device further comprises: a connecting member, the connecting member being used to hinge the middle portion of the copper plate to be detected with the middle portion of the deformation surface; The projection pattern of the copper plate to be inspected on a horizontal plane is completely located inside the projection pattern of the deformed surface on the horizontal plane; The elastic body comprises: a containing box, a first stopper, a second stopper and an elastic membrane; The housing box is used to form a housing chamber with an opening at one end; the elastic membrane is sealed at the opening; The first stopper is used to form an annular limiting area above the containing box, so that the elastic membrane is located in the annular limiting area when it expands; The second stopper is used to form a stopper surface at the upper part of the annular limiting area; the stopper surface is connected with the annular limiting area and the stopper surface forms a passage gap connected with the annular area; When the copper plate to be detected is fixed to the mounting portion, part of the elastic membrane expands outward along the passage gap so that the mounting portion is located at the upper part of the passage gap; A mounting frame is provided on the flaw detector, and the flaw detector is connected to the fixing frame through the mounting frame; The mounting frame is rotatably connected to the fixing frame so that the flaw detector abuts against the copper plate when the copper plate is tilted; A bonding portion is provided on one side of the elastic membrane in contact with the accommodating chamber; A distance control structure is provided in the accommodating chamber, and the distance control structure is used to adjust the maximum distance between the combining portion and the bottom surface of the accommodating chamber; The combination parts are provided in plurality, and the plurality of combination parts are distributed along the length direction of the steel plate to be detected; the combination parts are provided at different positions between the elastic membrane and the copper plate to be detected; The distance control structure comprises a rotating motor, a winding roller and a rope; the rope is fixed on the winding roller; the rotating motor is used to drive the winding roller to rotate; the rope is fixed to the elastic membrane through a joint.

2. A copper plate defect detection device according to claim 1, characterized in that: The connecting piece comprises: a mounting portion and a connecting portion; The mounting portion is fixed to the connecting portion, and the mounting portion is used to form a mounting surface fixed to the copper plate to be detected; a rigid portion for setting the connecting portion is formed on the deformable surface; and a rigid surface for fixing to the connecting portion is formed on the rigid portion; When the mounting portion is fixed to the copper plate to be detected, the mounting surface completely covers the rigid surface.

3. A copper plate defect detection device according to claim 1, characterized in that: An elastic structure is arranged in the annular region, and the elastic structure is used to contact with the elastic membrane. The volume of the elastic structure decreases after being acted by an external force.

4. A copper plate defect detection device according to claim 3, characterized in that: The flow medium is a liquid.

5. A copper plate defect detection device according to claim 1, characterized in that: A lifting drive structure is arranged on the fixing frame, and the lifting drive structure is used to directly or indirectly move the flaw detector upward or downward.

6. An inspection method using the copper plate defect detection device according to any one of claims 1 to 5, characterized in that: include: Place the copper plate to be tested on the deformation surface of the elastic body; Use a driving member to inject a fluid medium into the control chamber to expand the elastic body until the copper plate to be tested abuts against the flaw detector; The elastic body is driven to move by the movable carrier, so that the copper plate to be inspected on the elastic body and the flaw detector move relative to each other; The driving member is used to control the expansion degree of the elastic body, and the abutment degree between the copper plate to be detected and the flaw detector is controlled.

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