A non-destructive testing device for metal sheets

Abstract

The present invention relates to the field of sheet material detection. Specifically, it relates to a non-destructive detection device for metal sheets, which includes a vertical plate and a long strip pressure box arranged on the vertical plate; a rectangular sliding groove is provided on the vertical plate, and two sliding blocks are slidably arranged in the rectangular sliding groove. Each sliding block is provided with a rectangular frame through a connecting rod; a fixing mechanism for fixing the metal sheet is arranged in each rectangular frame; a plurality of sliding holes are equidistantly arranged on both sides of the long strip pressure box along the length direction, and a detection mechanism for detecting and marking the concavities and convexities on the surface of the metal sheet is arranged in each sliding hole. By moving the two sliding blocks, both sides of the metal sheet can be respectively contacted with the detection mechanisms on both sides of the long strip pressure box, so that both sides of the moving metal sheet can be continuously detected and marked, improving the detection efficiency and facilitating the staff to carry out repair and inspection.

Description

Technical Field

[0001] The present invention relates to the field of sheet metal detection, and more particularly to a non-destructive detection device for metal sheets. Background Art

[0002] After the metal sheet is processed, it is necessary to detect the thickness of the metal sheet to determine whether the metal sheet is qualified.

[0003] Chinese Patent: CN118224987B, a device for detecting the thickness of a metal sheet, relates to the field of measuring devices, and includes a detection table. A top frame is fixed on the top of the detection table, and a measuring component is slidably installed on the surface of the top frame. The measuring component includes a horizontal frame. Two sliders are symmetrically and slidably installed in the horizontal frame, and a first distance measuring instrument is fixed on the outer surface of the slider. A swinging component is provided at the top of the middle position of the horizontal frame.

[0004] During the detection process of this invention, the flat plate contacts the surface of the metal sheet, and the flat plate may contact the surface protrusions of the metal sheet, resulting in measurement errors; secondly, both sides of the metal sheet may be uneven. The staff needs to take out the metal sheet for secondary detection, and the uneven points on the metal sheet cannot be marked, and the staff needs to search for and repair them after the detection is completed, thus affecting the work efficiency. Summary of the Invention

[0005] The main purpose of the present invention is to provide a non-destructive detection device for metal sheets, which detects and marks the concave and convex positions on both sides of the metal sheet through a detection mechanism, thereby improving the detection efficiency and facilitating the staff to repair.

[0006] To achieve the above-mentioned purpose, the present invention provides a non-destructive testing device for metal plates, including a vertical plate, a fixing mechanism, a long pressure box, a testing mechanism and a blocking mechanism; a rectangular slide groove is arranged at the center of one side of the vertical plate, two sliding blocks are slidingly arranged in the rectangular slide groove, each sliding block is provided with a rectangular frame through a connecting rod, and there are two groups of fixing mechanisms, which are arranged inside the rectangular frame and are used to fix the metal plates; each group of fixing mechanisms includes two measuring contact plates that can approach and move away from each other, and scale lines are arranged on the measuring contact plates; the long pressure box is arranged at the center of the vertical plate, and a plurality of sliding holes are equidistantly arranged on both sides of the long pressure box along the length direction; there are multiple groups of testing mechanisms, which are arranged in corresponding sliding holes and are used to detect and mark the concave and convex surfaces of the metal plates; each group of testing mechanisms includes a testing The invention relates to a column and a detection ball; the detection column is slidably arranged in the sliding hole, an extension plate is arranged at one end of the detection column close to the long pressure box, a long plate is arranged inside the long pressure box, and the extension plate and the long plate are connected to each other through a compression spring; a circular groove is arranged at one end of the detection column away from the long pressure box, the detection ball is rotatably arranged in the circular groove, and a plurality of mutually connected marking channels are arranged on the outer surface of the detection ball; a liquid storage hole connected to the circular groove is arranged at the center of the bottom of the detection column, a pressure valve is arranged at one end of the liquid storage hole close to the circular groove, and a one-way valve is arranged at the other end; a pressure pump is arranged at one end of the long pressure box away from the vertical plate, and there are multiple blocking mechanisms, which are arranged at the bottom of the corresponding detection column, and can block and open the liquid storage hole as the detection column moves after the detection column collides with the surface of the metal plate.

[0007] Preferably, the fixing mechanism also includes a first hydraulic rod and a positioning plate; there are two first hydraulic rods, and the two first hydraulic rods are mirror-imaged at the inner walls at both ends of the rectangular frame along the length direction; the actuator of each first hydraulic rod is provided with a mounting plate, the mounting plate is provided with a square groove, and the measuring contact plate is provided with a sliding bar, the sliding bar can be slidably arranged in the square groove, and a limiting plate is provided at the end of each sliding bar. Each sliding bar is also sleeved with a buffer spring, and the buffer spring is located between the measuring contact plate and the corresponding mounting plate, and a rectangular notch is also provided at the lower end of the mounting plate, the positioning plate is slidably arranged in the rectangular notch, and a rotating groove is also provided at the center of the inner wall at the bottom of the rectangular notch, and a connecting shaft is rotatably arranged in the rotating groove, and two recovery gears are provided at the center of the connecting shaft, and gear teeth cooperating with the recovery gear are also provided on the positioning plate, and first reset torsion springs are also provided at both ends of the connecting shaft, and a traction rope is also provided at the center of the connecting shaft, the traction rope is located between the two recovery gears and the end of the traction rope away from the connecting shaft is arranged on the corresponding measuring contact plate.

[0008] Preferably, each plugging mechanism includes an installation pipe, a plugging disc and a synchronous rod; at one end of each detection column away from the detection ball, an installation pipe is coaxially arranged. Two rotating holes are mirror-symmetrically arranged on the inner wall of the installation pipe. A plugging disc is arranged inside the installation hole. Two turning shafts are mirror-symmetrically arranged on the outer wall of the plugging disc. The turning shafts are rotatably arranged in the corresponding rotating holes, and a second reset torsion spring is also arranged on each turning shaft; a plurality of vertical holes are equidistantly arranged on the long strip board. The synchronous rod is slidably arranged in the corresponding vertical hole. One end of each synchronous rod close to the corresponding detection column is hinged with a horizontal plate; a connecting plate is also arranged on the synchronous rod. A rectangular through groove is arranged on the connecting plate. Oblique guiding grooves are arranged on the inner walls on both sides of the rectangular through groove. A jacking block is slidably arranged in the rectangular through groove. Guide rods are arranged on the outer walls on both sides of the jacking block and are matched with the oblique guiding grooves. The guide rods are slidably arranged in the corresponding oblique guiding grooves. Horizontal limiting grooves are arranged at the ends of the oblique guiding grooves. A support bar is hinged between the jacking block and one end of the corresponding horizontal plate away from the synchronous rod; a locking mechanism capable of restricting the positions of a plurality of synchronous rods is also arranged on the long strip board.

[0009] Preferably, the locking mechanism includes a moving bar and a telescopic rod; there are two moving bars, which are respectively arranged on both sides of the long strip board along the length direction. A plurality of connecting bars are equidistantly arranged on one side of each moving bar along the length direction. The end of each connecting bar is connected to the bottom of the jacking block through a telescopic rod; a rubber pad is arranged on one side of each connecting bar close to the corresponding synchronous rod. A plurality of friction grooves matched with the rubber pads are arranged on each synchronous rod along the length direction.

[0010] Preferably, a U-shaped plate is arranged on one side of the long strip pressure box close to the vertical plate. A second hydraulic rod for pushing the U-shaped plate to move is arranged on the vertical plate.

[0011] Preferably, one end of each moving bar away from the pressure pump extends out of the long strip pressure box and is provided with a reaction groove. Slots are arranged on both sides of the U-shaped plate. A right-angled trapezoidal block matched with the reaction groove is slidably arranged in each slot. The inclined surface of the right-angled trapezoidal block faces the corresponding slot direction. An arc-shaped reaction block is arranged at one end of each right-angled trapezoidal block away from the slot. The arc-shaped reaction block and the corresponding side of the U-shaped plate are connected to each other through a downward pressure spring; a long strip block matched with the arc-shaped reaction block is also arranged on each connecting rod. Triangular guiding blocks are arranged on both sides of the long strip block along the length direction.

[0012] Preferably, a liquid adding port communicating with the liquid storage hole is also arranged on the outer wall of each detection column.

[0013] Preferably, four rotating wheels are arranged on the vertical plate in a rectangular distribution. The four rotating wheels are connected by a synchronous belt. A collar is rotatably arranged on each connecting rod. Each collar is connected to the synchronous belt through a locking rod.

[0014] Preferably, a sponge is also arranged inside the detection ball.

[0015] The beneficial effects of this application compared with the prior art are as follows:

[0016] 1. Through the cooperation of the detection ball and the detection column in this application, when the detection ball moves to the uneven part of the metal sheet, the liquid in the liquid storage hole is pushed by gas, and the unevenness is detected and marked through the marking channel on the detection ball, so as to facilitate the staff to observe and repair.

[0017] 2. This application fixes and measures the thickness of both sides of the metal sheet through two measurement abutting plates, thereby reducing the influence of data errors caused by the unevenness of the metal sheet when placed flat.

[0018] 3. Through the cooperation of the sliding block and the detection column in this application, the sliding block moves along the rectangular sliding groove, so that the detection balls on both sides of the long strip pressure box can continuously detect both sides of the metal sheet respectively, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, making other features, objectives, and advantages of the present invention more obvious. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 is the three-dimensional view of the present invention Figure 1 ;

[0021] Figure 2 is the three-dimensional view of the present invention Figure 2 ;

[0022] Figure 3 is the partial three-dimensional exploded view of the present invention Figure 1 ;

[0023] Figure 4 is Figure 3 the partial enlarged view at A in

[0024] Figure 5 is the partial three-dimensional view of the present invention Figure 1 ;

[0025] Figure 6 is the partial three-dimensional exploded view of the present invention Figure 2 ;

[0026] Figure 7 is Figure 6 the partial enlarged view at B in

[0027] Figure 8 is Figure 6 the partial enlarged view at C in

[0028] Figure 9 is a partial three - dimensional decomposition of the present invention Figure 3 ;

[0029] Figure 10 is a partial three - dimensional decomposition of the present invention Figure 4 ;

[0030] Figure 11 is a partial three - dimensional sectional view of the present invention.

[0031] The reference numerals in the above figures are as follows:

[0032] 1 - vertical plate; 11 - rectangular chute; 12 - sliding block; 121 - connecting rod; 122 - rectangular frame; 123 - long strip; 124 - triangular guiding block; 125 - collar; 126 - locking rod; 13 - second hydraulic rod; 14 - rotating wheel; 15 - synchronous belt;

[0033] 2 - fixing mechanism; 21 - measuring contact plate; 211 - sliding strip; 212 - limiting plate; 213 - buffer spring; 22 - first hydraulic rod; 221 - mounting plate; 222 - square groove; 223 - rectangular notch; 224 - rotating groove; 225 - connecting shaft; 226 - recovery gear; 227 - first return torsion spring; 228 - traction rope; 23 - clamping plate; 231 - tooth;

[0034] 3 - long strip pressure box; 31 - sliding hole; 32 - long strip plate; 33 - pressure pump; 34 - C - shaped plate; 341 - slot; 342 - right - angled trapezoidal block; 343 - arc reaction block; 344 - downward pressure spring;

[0035] 4 - detection mechanism; 41 - detection column; 411 - extension plate; 412 - compression spring; 413 - circular groove; 414 - liquid storage hole; 415 - pressure valve; 416 - one - way valve; 417 - liquid filling port; 42 - detection ball; 421 - marking channel; 422 - sponge;

[0036] 5 - plugging mechanism; 51 - installation pipe; 52 - plugging disc; 521 - rotation shaft; 522 - second return torsion spring; 53 - synchronous rod; 531 - horizontal plate; 532 - connecting plate; 533 - rectangular through - slot; 534 - oblique guiding slot; 535 - horizontal limiting slot; 536 - friction slot; 54 - lifting block; 541 - guiding rod; 542 - support strip;

[0037] 6 - locking mechanism; 61 - moving strip; 611 - connecting strip; 612 - rubber pad; 613 - reaction groove; 62 - telescopic rod. Detailed implementation mode

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] See also Figures 1 to 11 As shown, a non-destructive testing device for metal plates comprises a vertical plate 1, a fixing mechanism 2, a long pressure box 3, a testing mechanism 4 and a blocking mechanism 5; a rectangular slide groove 11 is arranged at the center of one side of the vertical plate 1, and two sliding blocks 12 are slidably arranged in the rectangular slide groove 11, and each sliding block 12 is provided with a rectangular frame 122 through a connecting rod 121, and there are two groups of fixing mechanisms 2, and the fixing mechanisms 2 are arranged inside the rectangular frame 122 and are used to fix the metal plates; each group of fixing mechanisms 2 comprises two measuring contact plates 21 that can approach and move away from each other, and scale lines are arranged on the measuring contact plates 21; the long pressure box 3 is arranged at the center of the vertical plate 1, and a plurality of sliding holes 31 are equidistantly arranged on both sides of the long pressure box 3 along the length direction, and there are multiple groups of testing mechanisms 4, and the testing mechanisms 4 are arranged in corresponding sliding holes 31 and are used to detect and mark the concave and convex surfaces of the metal plates; each group of testing mechanisms 4 comprises a testing column 41 and a testing ball 42; the testing column 41 is slidably arranged in the sliding hole 3 1, an extension plate 411 is provided at one end of the detection column 41 close to the long pressure box 3, a long plate 32 is provided inside the long pressure box 3, and the extension plate 411 and the long plate 32 are connected to each other through a compression spring 412; a circular groove 413 is provided at one end of the detection column 41 away from the long pressure box 3, and a detection ball 42 is rotatably arranged in the circular groove 413, and a plurality of mutually connected marking channels 421 are provided on the outer surface of the detection ball 42; a liquid storage hole 414 connected to the circular groove 413 is provided at the center of the bottom of the detection column 41, and a pressure valve 415 is provided at one end of the liquid storage hole 414 close to the circular groove 413, and a one-way valve 416 is provided at the other end; a pressure pump 33 is provided at one end of the long pressure box 3 away from the vertical plate 1, and there are multiple blocking mechanisms 5, which are arranged at the bottom of the corresponding detection column 41, and can block and open the liquid storage hole 414 as the detection column 41 moves after the detection column 41 contacts the surface of the metal plate.

[0040] The staff places the metal sheet at the center of the rectangular frame 122. Subsequently, by adjusting the two measuring contact plates 21 inside the rectangular frame 122, the measuring contact plates 21 contact both sides of the metal sheet, thereby fixing the metal sheet. Moreover, scale lines are provided on the measuring contact plates 21, and the staff measures the thickness of the metal sheet through the scale lines. Subsequently, the sliding blocks 12 all move along the rectangular sliding grooves 11, so that the detection columns 41 equidistantly arranged on the long strip pressure box 3 can contact the surface of the metal sheet, thereby generating movement. The extension plate 411 can prevent the detection column 41 from being ejected from the long strip pressure box 3 due to the elastic force of the compression spring 412. At this time, the compression spring 412 is compressed to generate an elastic force, so that the detection ball 42 at the end of the detection column 41 can closely adhere to the surface of the metal sheet. As the rectangular frame 122 moves, the detection ball 42 can roll on the surface of the metal sheet. Before this, the pressure pump 33 continuously inputs gas into the long strip pressure box 3. When the surface of the metal sheet is uneven, the detection ball 42 can move accordingly. At this time, the liquid storage hole 414 is opened by the blocking mechanism 5, and the gas enters the liquid storage hole 414 through the one-way valve 416, and the pressure in the liquid storage hole 414 increases. At this time, a colored liquid is placed in the liquid storage hole 414, so that the liquid can be sprayed out through the marking channel 421 on the detection ball 42, thereby marking the concave or convex positions of the metal sheet, which is convenient for the staff to check and repair; and there are two sliding blocks 12, and the two sliding blocks 12 are centrosymmetric with respect to the central position of the rectangular sliding groove 11, so that the metal sheet can be continuously detected. The multiple detection columns 41 equidistantly arranged on both sides of the long strip pressure box 3 can detect both sides of the metal sheet during the rotation of the sliding block 12, thereby improving the detection efficiency.

[0041] See Figures 1 to 4As shown in the figure, the fixing mechanism 2 further includes a first hydraulic rod 22 and a clamping plate 23; there are two first hydraulic rods 22, and the two first hydraulic rods 22 are mirror-symmetrically arranged on the inner walls at both ends of the rectangular frame 122 along the length direction. An installation plate 221 is provided on the actuator part of each first hydraulic rod 22. A square groove 222 is provided on the installation plate 221. A sliding strip 211 is provided on the measurement contact plate 21. The sliding strip 211 is slidably arranged in the square groove 222. A limiting plate 212 is provided at the end of each sliding strip 211. A buffer spring 213 is also sleeved on each sliding strip 211. The buffer spring 213 is located between the measurement contact plate 21 and the corresponding installation plate 221. A rectangular notch 223 is further provided at the lower end of the installation plate 221. The clamping plate 23 is slidably arranged in the rectangular notch 223. A rotating groove 224 is provided at the center of the inner wall of the bottom of the rectangular notch 223. A connecting shaft 225 is rotatably arranged in the rotating groove 224. Two recovery gears 226 are provided at the center of the connecting shaft 225. Teeth 231 that cooperate with the recovery gears 226 are also provided on the clamping plate 23. First return torsion springs 227 are provided at both ends of the connecting shaft 225. A traction rope 228 is provided at the center of the connecting shaft 225. The traction rope 228 is located between the two recovery gears 226 and the end of the traction rope 228 away from the connecting shaft 225 is arranged on the corresponding measurement contact plate 21.

[0042] To facilitate the fixing of the metal sheet, under the elastic force of the buffer spring 213, the traction rope 228 is kept in a taut state. At this time, the clamping plate 23 can extend a certain distance. At this time, the clamping plate 23 and the measurement contact plate 21 are in a "T" shape, which can not only support the metal sheet, but also facilitate the staff to observe the scale line to measure the thickness of the metal sheet; with the drive of the two first hydraulic rods 22, the measurement contact plate 21 is in contact with the metal sheet. At this time, as the traction rope 228 loosens, the first return torsion spring 227 can drive the connecting shaft 225 to rotate. With the cooperation of the recovery gears 226, the clamping plate 23 can move in a direction away from the metal sheet, so that the clamping plate 23 can move behind the measurement contact plate 21 to avoid the clamping plate 23 blocking the metal sheet.

[0043] See Figures 6 to 10As shown, each plugging mechanism 5 includes an installation pipe 51, a plugging disc 52, and a synchronous rod 53; at one end of each detection column 41 away from the detection ball 42, an installation pipe 51 is coaxially arranged. Two rotation holes are mirror-symmetrically arranged on the inner wall of the installation pipe 51. A plugging disc 52 is arranged inside the installation hole. On the outer wall of the plugging disc 52, rotation shafts 521 are mirror-symmetrically arranged. The rotation shafts 521 are rotatably arranged in the corresponding rotation holes. A second reset torsion spring 522 is also arranged on each rotation shaft 521; a plurality of vertical holes are equidistantly arranged on the long strip plate 32. The synchronous rod 53 is slidably arranged in the corresponding vertical hole. One end of each synchronous rod 53 close to the corresponding detection column 41 is hinged with a horizontal plate 531; a connecting plate 532 is also arranged on the synchronous rod 53. A rectangular through groove 533 is arranged on the connecting plate 532. Oblique guiding grooves 534 are arranged on the inner walls on both sides of the rectangular through groove 533. A jacking block 54 is slidably arranged in the rectangular through groove 533. Guide rods 541 that cooperate with the oblique guiding grooves 534 are arranged on the outer walls on both sides of the jacking block 54. The guide rods 541 are slidably arranged in the corresponding oblique guiding grooves 534. A horizontal limiting groove 535 is arranged at the end of the oblique guiding groove 534. A support bar 542 is used to hinge the jacking block 54 and one end of the corresponding horizontal plate 531 away from the synchronous rod 53; a locking mechanism 6 that can limit the positions of the plurality of synchronous rods 53 is also arranged on the long strip plate 32.

[0044] When the detection column 41 needs to move to the surface of the metal plate, at this time, the guide rods 541 on both sides of the jacking block 54 are located in the horizontal limiting groove 535, so that the horizontal plate 531 and the synchronous rod 53 are arranged at 90°. The horizontal plate 531 can contact the edge of the installation pipe 51. At this time, the synchronous rod 53 is located at the edge of the plugging disc 52. The horizontal plate 531 and the synchronous rod 53 cooperate, so that the plugging disc 52 can overcome the torsion of the second reset torsion spring 522 and maintain the plugging state of the installation pipe 51. At this time, the detection column 41 can drive the synchronous rod 53 to move synchronously. After the detection ball 42 fits the surface of the metal plate, the positions of the plurality of synchronous rods 53 are locked through the locking mechanism 6. And by adjusting the position of the jacking block 54, the jacking block 54 moves along the oblique guiding groove 534. The horizontal plate 531 is synchronously driven to rotate through the support bar 542, so that the horizontal plate 531 is separated from the plugging disc 52, and the plugging disc 52 only abuts against the top of the synchronous rod 53. At this time, the plugging disc 52 is still in the plugging state of the installation pipe 51. When the metal plate is uneven, the detection column 41 can move along its axis. When there is a depression, under the action of the torsion of the second reset torsion spring 522, the plugging disc 52 rotates, so that the gas can push the liquid to be marked through the detection ball 42. Similarly, when there is a protrusion, the synchronous rod 53 can abut against the edge of the plugging disc 52, causing the plugging disc 52 to rotate, so that the gas can push the liquid to be marked through the detection ball 42.

[0045] SeeFigures 6 to 10 As shown, the locking mechanism 6 includes a moving bar 61 and a telescopic rod 62; there are two moving bars 61, which are respectively arranged on both sides of the long strip plate 32 along the length direction. A plurality of connecting bars 611 are equidistantly arranged on one side of each moving bar 61 along the length direction. The end of each connecting bar 611 is connected to the bottom of the lifting block 54 through a telescopic rod 62; a rubber pad 612 is arranged on one side of each connecting bar 611 close to the corresponding synchronizing rod 53, and a plurality of friction grooves 536 cooperating with the rubber pad 612 are arranged on each synchronizing rod 53 along the length direction.

[0046] By pulling the moving bar 61, the moving bar 61 drives the corresponding connecting bar 611 to move. As the connecting bar 611 moves, the corresponding lifting block 54 is driven to move through the corresponding telescopic rod 62. The lifting block 54 drives the horizontal plate 531 to move through the support bar 542, so that the sealing plate 52 is only supported by the synchronizing rod 53. At this time, the rubber pad 612 can contact the friction groove 536 on the corresponding synchronizing rod 53, so as to lock the synchronizing rod 53 and ensure its stability.

[0047] See Figure 2 and Figure 5 As shown, a U-shaped plate 34 is arranged on one side of the long strip pressure box 3 close to the vertical plate 1, and a second hydraulic rod 13 for pushing the U-shaped plate 34 to move is arranged on the vertical plate 1.

[0048] In order to ensure the complete detection of the surface of the metal plate, the long strip pressure box 3 is driven to move back and forth through the second hydraulic rod 13, so that a plurality of detection balls 42 can cover the surface of the metal plate, improve the detection effect and avoid missed detection.

[0049] See Figure 3 , Figure 7 , Figure 8 and Figure 10 As shown, one end of each moving bar 61 far from the pressure pump 33 extends out of the long strip pressure box 3 and is provided with a reaction groove 613. Slots 341 are arranged on both sides of the U-shaped plate 34. A right-angled trapezoidal block 342 cooperating with the reaction groove 613 is slidably arranged in each slot 341. The inclined surface of the right-angled trapezoidal block 342 faces the corresponding slot 341 direction. An arc-shaped reaction block 343 is arranged at one end of each right-angled trapezoidal block 342 far from the slot 341. The arc-shaped reaction block 343 and the corresponding side of the U-shaped plate 34 are connected to each other through a downward pressure spring 344; a long strip block 123 cooperating with the arc-shaped reaction block 343 is also arranged on each connecting rod 121, and triangular guiding blocks 124 are arranged on both sides of the long strip block 123 along the length direction.

[0050] In order to improve the detection efficiency, when the metal sheet moves to the long pressure box 3, the triangular guide block 124 arranged on the long block 123 can contact the arc reaction block 343 on the right-angled trapezoidal block 342, so that the right-angled trapezoidal block 342 can overcome the elastic force of the downward pressure spring 344 and move toward the direction close to the reaction groove 613. The inclined surface of the right-angled trapezoidal block 342 can contact the reaction groove 613, so that after the detection column 41 contacts the surface of the metal sheet, the lifting block 54 can be moved, so that the sealing disk 52 can be flipped accordingly with the movement of the detection column 41, so that the detection ball 42 can mark the uneven position.

[0051] See also Figure 11 As shown, the outer wall of each detection column 41 is also provided with a liquid filling port 417 connected to the liquid storage hole 414 .

[0052] The liquid filling port 417 is provided to facilitate the staff to replenish the liquid in time, thereby ensuring that the detection can be carried out continuously.

[0053] See also Figure 1 As shown, four rotating wheels 14 are arranged in a rectangular distribution on the vertical plate 1, and the four rotating wheels 14 are connected by a synchronous belt 15. A ring 125 is rotatably arranged on each connecting rod 121, and each ring 125 is connected to the synchronous belt 15 through a locking rod 126.

[0054] Through the cooperation of the synchronous belt 15 and the locking rod 126, the sliding block 12 can move along the rectangular sliding groove 11, so that both sides of the metal plate can be detected, thereby improving the detection effect.

[0055] See also Figure 11 As shown, a sponge 422 is also arranged inside the detection ball 42 .

[0056] By providing a sponge 422, before detection, the sponge 422 is immersed in a proper amount of marking liquid. When marking, the gas pushes the marking liquid to contact the sponge 422, so as to mark the unevenness; when there is no unevenness, the detection ball 42 rolls, and the sponge 422 can absorb the marking liquid to prevent it from overflowing.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-destructive testing device for metal sheets, characterized in that, It includes a vertical plate, a fixing mechanism, a long pressure box, a detection mechanism and a blocking mechanism; A rectangular slide groove is provided at the center of one side of the vertical plate, and two sliding blocks are slidably provided in the rectangular slide groove, and each sliding block is provided with a rectangular frame through a connecting rod, and there are two groups of fixing mechanisms, which are provided inside the rectangular frame and are used to fix the metal plate; each group of fixing mechanisms includes two measuring contact plates that can approach and move away from each other, and scale lines are provided on the measuring contact plates; The long pressure box is arranged at the center of the vertical plate, and a plurality of sliding holes are arranged at equal distances on both sides of the long pressure box along the length direction. There are multiple groups of detection mechanisms, which are arranged in the corresponding sliding holes and are used to detect and mark the concave and convex surfaces of the metal plate; Each set of detection mechanisms includes a detection column and a detection ball; the detection column is slidably arranged in the sliding hole, an extension plate is arranged at one end of the detection column close to the long pressure box, a long plate is arranged inside the long pressure box, and the extension plate and the long plate are connected to each other through a compression spring; A circular groove is arranged at one end of the detection column away from the long pressure box, and a detection ball is rotatably arranged in the circular groove, and a plurality of mutually connected marking channels are arranged on the outer surface of the detection ball; a liquid storage hole connected to the circular groove is arranged at the center of the bottom of the detection column, and a pressure valve is arranged at one end of the liquid storage hole close to the circular groove, and a one-way valve is arranged at the other end; A pressure pump is arranged at one end of the long pressure box away from the vertical plate. There are multiple blocking mechanisms, which are arranged at the bottom of the corresponding detection column and can block and open the liquid storage hole as the detection column moves after the detection column collides with the surface of the metal plate.

2. The non-destructive testing device for metal sheets according to claim 1, wherein, The fixing mechanism also includes a first hydraulic rod and a clamping plate; There are two first hydraulic rods, which are mirror-imaged at the inner walls of both ends of the rectangular frame along the length direction. The actuator of each first hydraulic rod is provided with a mounting plate, the mounting plate is provided with a square groove, the measuring contact plate is provided with a sliding bar, the sliding bar can be slidably arranged in the square groove, and a limit plate is provided at the end of each sliding bar. A buffer spring is also sleeved on each sliding bar, and the buffer spring is located between the measuring contact plate and the corresponding mounting plate. A rectangular slot is also provided at the lower end of the mounting plate, and a positioning plate is slidably arranged in the rectangular slot. A rotating slot is also provided at the center of the inner wall at the bottom of the rectangular slot. A connecting shaft is rotatably provided in the rotating slot, and two recovery gears are provided at the center of the connecting shaft. Gear teeth matching the recovery gears are also provided on the positioning plate. First reset torsion springs are also provided at both ends of the connecting shaft. A traction rope is also provided at the center of the connecting shaft. The traction rope is located between the two recovery gears, and the end of the traction rope away from the connecting shaft is provided on the corresponding measuring resistance plate.

3. The non-destructive testing device for metal sheets according to claim 1, wherein, Each set of blocking mechanisms includes a mounting tube, a blocking disc and a synchronization rod; A mounting tube is coaxially arranged at one end of each detection column away from the detection ball, two rotation holes are mirror-imaged on the inner wall of the mounting tube, a blocking disk is arranged inside the mounting hole, and a flip shaft is mirror-imaged on the outer wall of the blocking disk, the flip shaft is rotatably arranged in the corresponding rotation hole, and a second reset torsion spring is also arranged on each flip shaft; A plurality of vertical holes are equidistantly arranged on the long strip board, and the synchronization rods are slidably arranged in the corresponding vertical holes. One end of each synchronization rod close to the corresponding detection column is hinged with a horizontal board; A connecting board is also arranged on the synchronization rod. A rectangular through groove is arranged on the connecting board. Oblique guiding grooves are arranged on the inner walls on both sides of the rectangular through groove. A jacking block is slidably arranged in the rectangular through groove. Guide rods that cooperate with the oblique guiding grooves are arranged on the outer walls on both sides of the jacking block. The guide rods are slidably arranged in the corresponding oblique guiding grooves. Horizontal limiting grooves are arranged at the ends of the oblique guiding grooves. A support bar is used to hinge the jacking block and the end of the corresponding horizontal board away from the synchronization rod; A locking mechanism for restricting the positions of a plurality of synchronization rods is also arranged on the long strip board.

4. A non-destructive testing device for metal sheets according to claim 3, characterized in that, The locking mechanism includes a moving bar and a telescopic rod; There are two moving bars, and the two moving bars are respectively arranged on both sides of the long strip board along the length direction. A plurality of connecting bars are equidistantly arranged on one side of each moving bar along the length direction. The end of each connecting bar is connected to the bottom of the jacking block through a telescopic rod; A rubber pad is arranged on one side of each connecting bar close to the corresponding synchronization rod. A plurality of friction grooves that cooperate with the rubber pads are arranged on each synchronization rod along the length direction.

5. The non-destructive testing device for metal sheets according to claim 4, characterized in that, A U-shaped board is arranged on one side of the long strip pressure box close to the vertical board. A second hydraulic rod for pushing the U-shaped board to move is arranged on the vertical board.

6. The non-destructive testing device for metal sheets according to claim 5, characterized in that, One end of each moving bar away from the pressure pump extends out of the long strip pressure box and is provided with a reaction groove. Slots are arranged on both sides of the U-shaped board. A right trapezoidal block that cooperates with the reaction groove is slidably arranged in each slot. The inclined surface of the right trapezoidal block faces the corresponding slot direction. An arc-shaped reaction block is arranged at one end of each right trapezoidal block away from the slot. The arc-shaped reaction block and the corresponding side of the U-shaped board are connected to each other through a downward pressing spring; A long strip block that cooperates with the arc-shaped reaction block is also arranged on each connecting rod. Triangular guiding blocks are arranged on both sides of the long strip block along the length direction.

7. A non-destructive testing device for metal sheets according to claim 1, characterized in that, A liquid adding port communicating with the liquid storage hole is also arranged on the outer wall of each detection column.

8. The non-destructive testing device for metal sheets according to claim 1, characterized in that, Four rotating wheels are arranged on the vertical board in a rectangular distribution. The four rotating wheels are connected by a synchronous belt. A collar is rotatably arranged on each connecting rod. Each collar is connected to the synchronous belt through a locking rod.

9. The non-destructive testing device for metal sheets according to claim 1, characterized in that, A sponge is also arranged inside the detection ball.

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