Fluorescent penetration detection device suitable for plates

Abstract

The invention relates to the technical field of fluorescent penetrant detection devices, in particular to a fluorescent penetrant detection device suitable for plates, which comprises a polygonal box body, a plurality of groups of clamping plates respectively arranged in the polygonal box body, and a contact base arranged in the polygonal box body, the fluorescent penetrant detection device comprises a polygonal box body, an adjusting part arranged in the polygonal box body, and an extrusion type switching unit arranged in the polygonal box body. According to the fluorescent penetrant detection device suitable for the plates, a worker can automatically and synchronously adjust the positions of a plurality of groups of clamping plates and a contact base when detecting the plates; according to the panel detection device, switching clamping of multiple sets of clamping plates is achieved, it is guaranteed that all areas of a panel can be fully detected, the detection effect is optimized, it is guaranteed that one set of clamping plates are in the clamping state all the time through the design of the extrusion type switching unit, clamping of the panel cannot be interrupted even in the switching process, and therefore the detection stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fluorescent penetrant testing devices, and in particular to a fluorescent penetrant testing device suitable for plate materials. Background Art

[0002] As a commonly used nondestructive testing method, fluorescent penetrant testing is widely used in defect detection of plates due to its simple operation, high sensitivity and good detection effect.

[0003] However, existing fluorescent penetrant testing devices for plates have obvious problems in clamping plates. Traditional testing devices usually use a fixed-position clamping mechanism, which means that once the plate is clamped, its position cannot be changed during the testing process. Since the clamping position is fixed, the inspector can only inspect specific areas of the plate, which may cause some potential defects to be missed, especially when the defect is outside the clamping area, the detection effect will be greatly reduced. In order to fully detect the plate, the inspector needs to manually change the clamping position, which is not only time-consuming and labor-intensive, but may also lead to errors and omissions during the detection process. For this reason, we propose a fluorescent penetrant testing device suitable for plates. Summary of the invention

[0004] A technical problem to be solved by the present application is: how to design a fluorescent penetration detection device that can automatically switch the clamping position and improve the detection effect.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a fluorescent penetrant detection device suitable for a plate, comprising a polygonal box body, and also comprising:

[0006] A plurality of functional slots, wherein the plurality of functional slots are evenly arranged on each side of the polygonal box;

[0007] A plurality of groups of clamping plates, each of which is disposed in a polygonal box and is used to clamp a plate to be tested;

[0008] A contact base, wherein the contact base is arranged in a polygonal box;

[0009] An adjusting member, which is disposed in the polygonal box and is used to synchronously adjust the positions of the multiple groups of clamps and the contact bases so that the multiple groups of clamps and the contact bases are switched in the multiple functional slots;

[0010] The extrusion switching unit is arranged in a polygonal box and connected with a plurality of clamping plates. After the contact base is attached to the bottom of any functional slot, the extrusion switching unit drives the plurality of clamping plates to clamp and release the plates to be tested respectively, and ensures that there is always a set of clamping plates in a clamping state;

[0011] The automatic reset unit is arranged in the polygonal box and connected with the extrusion switching unit and the adjusting member, and is used for storing force when the contact base is displaced, and automatically driving the contact base to reset when the contact base is squeezed to the end by the adjusting member.

[0012] In some embodiments, the adjusting member includes an electric push rod arranged in the middle of the polygonal box, a driving motor is arranged at the end of the electric push rod, a rotating frame is arranged at the output end of the driving motor, an electromagnet is arranged at the end of the rotating frame, and a mounting bracket magnetically connected to the electromagnet is arranged on the electromagnet, and multiple groups of the clamping plates and contact bases are arranged on the mounting bracket.

[0013] In some embodiments, the extrusion switching unit includes an extrusion rack slidably arranged on the mounting bracket, the contact base is arranged on the extrusion rack, the mounting bracket is provided with an extrusion piece, which is used to be squeezed upward by the electric push rod after the contact base fits the functional groove, the mounting bracket is provided with a shift block slidably arranged, the mounting bracket is provided with a reciprocating switching piece, which is used to drive the shift block to reciprocate on the mounting bracket, and the mounting bracket is provided with a plurality of synchronous shift pieces respectively cooperating with a plurality of groups of clamps, which are used to drive the plurality of groups of clamps to clamp and release the plates to be inspected respectively.

[0014] In some embodiments, the extrusion member includes a driving shaft rotatably disposed on a mounting bracket, and the driving shaft is provided with an extrusion gear for use in conjunction with an extrusion rack.

[0015] In some embodiments, the reciprocating switching member includes a rotating rod arranged on the driving shaft, a deflection rod is rotatably arranged at the end of the rotating rod, the end of the deflection rod is rotatably connected to the shift block, and the shift block is provided with multiple top blocks respectively matching each group of clamps.

[0016] In some embodiments, the synchronous shifting member includes a switching rack slidably arranged on the mounting bracket, a bull's eye shaft cooperating with an adjacent top block is arranged at the end of the switching rack, a rotating shaft is rotatably arranged on the mounting bracket, a switching gear cooperating with the switching rack is arranged on the rotating shaft, a torsion spring 1 is arranged on the rotating shaft, and the two ends of the torsion spring 1 are respectively connected to the mounting bracket and the rotating shaft, a synchronous gear is arranged on the rotating shaft, and two synchronous racks respectively located on both sides of the synchronous gear are slidably arranged on the mounting bracket, each group of the clamping plates includes two cooperating clamping plates, and the two clamping plates of each group are respectively arranged at the ends of the synchronous rack, and a spring 1 is arranged on the side of the clamping plate close to the plate to be detected, and a fitting plate is arranged at the end of the spring 1.

[0017] In some embodiments, the automatic reset unit includes a fixed plate arranged on a mounting bracket, a force storage piece is arranged on the mounting bracket, and is used to store force when the drive shaft rotates. A locking piece is arranged on the mounting bracket, and is used to cooperate with the force storage piece to store force, and automatically drives the contact base to reset when the contact base is squeezed to the end by the electric push rod.

[0018] In some embodiments, the force storage member includes a spring disposed between the fixed disk and the driving shaft.

[0019] In some embodiments, the locking member includes a ratchet wheel arranged on the driving shaft, a shift frame is slidably arranged on the mounting bracket, a damping layer is arranged between the mounting bracket and the shift frame, a convex plate for contacting the extrusion rack is arranged on the top of the shift frame, a second spring is arranged on the shift frame, and the two ends of the second spring are respectively connected to the mounting bracket and the shift frame, a fixed shaft is rotatably arranged at the end of the shift frame, a ratchet matching with the ratchet wheel is arranged on the fixed shaft, and a second torsion spring is sleeved on the outer side of the fixed shaft, and the two ends of the second torsion spring are respectively connected to the shift frame and the ratchet.

[0020] In some embodiments, a counterweight is provided on the contact base.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. Multifunctional slot design improves detection efficiency: by evenly opening multiple functional slots on each side of the polygonal box, the plates are clamped and then placed in the functional slots for detection. There is no need to frequently change the position of the plates, which significantly improves detection efficiency.

[0023] 2. Automatically switch the clamping position to optimize the detection effect: Using the adjustment piece and the extrusion switching unit, the device can automatically and synchronously adjust the position of multiple sets of clamping plates and the contact base, realize the position switching in multiple detection slots and the switching clamping of multiple sets of clamping plates, which not only avoids the detection blind area that may be caused by the traditional fixed clamping method, but also ensures that all areas of the plate can be fully detected, thereby optimizing the detection effect;

[0024] 3. Automatic reset function simplifies the operation process: The automatic reset unit can store force when the contact base is displaced, and automatically drives the contact base to reset when it is squeezed to the end by the adjustment part. This function not only simplifies the operation process, but also reduces manual intervention and improves the automation of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Another structural diagram;

[0027] Figure 3 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0028] Figure 4 For the present invention Figure 2 Schematic diagram of the local cross-section structure;

[0029] Figure 5 For the present invention Figure 4 Schematic diagram of the floor plan structure;

[0030] Figure 6 It is a schematic diagram of the structure of the adjusting member, the extrusion type switching unit and the automatic reset unit of the present invention;

[0031] Figure 7 For the present invention Figure 6 Schematic diagram of the structure after clamping the plate to be tested;

[0032] Figure 8 It is a partial structural schematic diagram of the extrusion type switching unit of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the synchronous shifting member of the present invention;

[0034] Fig.10 For the present invention Figure 6 Schematic diagram of the local cross-section structure;

[0035] Fig.11 For the present invention Fig.10 Explosion diagram of some structures;

[0036] Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure of the middle A area;

[0037] Fig.13 This is a structural schematic diagram of Example 2 of the present invention.

[0038] In the figure: 1, polygonal box; 2, adjusting part; 21, electric push rod; 22, driving motor; 23, rotating frame; 24, electromagnet; 25, mounting bracket; 3, extrusion switching unit; 31, extrusion rack; 32, shift block; 4, extrusion part; 41, driving shaft; 42, extrusion gear; 5, reciprocating switching part; 51, rotating rod; 52, deflection rod; 53, top block; 6, synchronous shifting part; 61, switching rack; 62, bull's eye shaft; 63, rotating shaft; 64 , switching gear; 65, torsion spring one; 66, synchronous gear; 67, synchronous rack; 68, clamping plate; 69, spring one; 7, automatic reset unit; 71, fixed plate; 8, force storage member; 81, spring spring; 9, locking member; 91, ratchet; 92, shift rack; 93, damping layer; 94, convex plate; 95, spring two; 96, fixed shaft; 97, ratchet; 98, torsion spring two; 10, counterweight; 11, functional slot; 12, clamping plate; 13, contact base. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-Figure 12 , the present invention provides a technical solution:

[0042] A fluorescent penetrant detection device suitable for plate materials comprises a polygonal box 1 and also includes:

[0043] A plurality of functional slots 11 are evenly arranged on each side of the polygonal box 1. In this embodiment, a hexagonal box is used, and the number of functional slots 11 is 6, including a cleaning slot, a drying slot, an infiltration slot, an imaging slot, an observation slot and a reserved slot, but not limited to the above number and collocation, such as Figure 4 As shown, the state shown in the figure is the situation in the permeation tank, at this time the plate is located in the permeate storage box in the permeate tank, and the contact base 13 is located outside the permeate storage box;

[0044] Multiple equipment slots, which are evenly arranged at each corner of the polygonal box 1, and are used to provide corresponding equipment support for each functional slot 11, such as a dryer, a water pump, a water tank, etc.;

[0045] A plurality of groups of clamping plates 12, wherein the plurality of groups of clamping plates 12 are respectively arranged in the polygonal box 1 and are used to clamp the plates to be tested;

[0046] A contact base 13, wherein the contact base 13 is disposed in the polygonal box 1;

[0047] An adjusting member 2, which is disposed in the polygonal box 1 and is used to synchronously adjust the positions of the plurality of clamping plates 12 and the contact base 13, so that the plurality of clamping plates 12 and the contact base 13 are switched in the plurality of functional slots 11;

[0048] The adjusting member 2 comprises an electric push rod 21 arranged in the middle of the polygonal box 1, a driving motor 22 is arranged at the end of the electric push rod 21, a rotating frame 23 is arranged at the output end of the driving motor 22, an electromagnet 24 is arranged at the end of the rotating frame 23, and a mounting bracket 25 magnetically connected to the electromagnet 24 is arranged on the electromagnet 24, and a plurality of groups of the clamping plates 12 and the contact base 13 are arranged on the mounting bracket 25. After the plate to be detected is clamped, the rotating frame 23 is controlled by the rotation of the electric push rod 21 and the driving motor 22 to adjust the height and angle, so that the electromagnet 24 adsorbs the mounting bracket 25, and then the mounting bracket 25 and the plate to be detected thereon are sent into the functional slot 11 by the rotation of the electric push rod 21 and the driving motor 22. When sent into the functional slot 11, the functional slot 11 will automatically open the top cover. This technology is an existing common structure and will not be described in detail here.

[0049] The extrusion switching unit 3 is arranged in the polygonal box 1 and connected with a plurality of groups of clamping plates 12. After the contact base 13 is attached to the bottom of any functional groove 11, the extrusion switching unit 3 drives the plurality of groups of clamping plates 12 to clamp and release the plates to be tested respectively, and ensures that there is always a group of clamping plates 12 in a clamping state;

[0050] The extrusion switching unit 3 includes an extrusion rack 31 slidably arranged on the mounting bracket 25, the contact base 13 is arranged on the extrusion rack 31, the mounting bracket 25 is provided with an extrusion member 4, which is used to be squeezed upward by the electric push rod 21 after the contact base 13 fits the functional groove 11, the mounting bracket 25 is slidably provided with a displacement block 32, the mounting bracket 25 is provided with a reciprocating switching member 5, which is used to drive the displacement block 32 to reciprocate on the mounting bracket 25, and the mounting bracket 25 is provided with a plurality of synchronous displacement members 6 respectively matched with a plurality of groups of clamping plates 12, which are used to drive the plurality of groups of clamping plates 12 to clamp and release the plates to be tested respectively. After the contact base 13 contacts the bottom of the functional groove 11, the electric push rod 21 is used to press the plate 12 upward. The rod 21 is squeezed, so that the contact base 13 and the extrusion rack 31 move up, driving the extrusion gear 42 and the driving shaft 41 to rotate, and then the driving shaft 41 drives the rotating rod 51 to rotate. Because the displacement block 32 is in the mounting bracket 25, under the action of the deflection rod 52, the displacement block 32 slides back and forth in the mounting bracket 25, thereby driving the top block 53 to squeeze the bull's eye shaft 62 and shifting the switching rack 61. The shifting of the switching rack 61 will drive the switching gear 64 and the rotating shaft 63 to rotate, and the synchronous gear 66 on the rotating shaft 63 will drive the synchronous racks 67 on both sides to shift up and down respectively, thereby separating the two clamping plates 68 of a group, canceling the clamping of the plate, and the remaining clamping plates 68 will not separate from each other;

[0051] The extrusion member 4 includes a driving shaft 41 rotatably mounted on the mounting bracket 25 , and an extrusion gear 42 is mounted on the driving shaft 41 for use in conjunction with the extrusion rack 31 ;

[0052] The reciprocating switching member 5 includes a rotating rod 51 arranged on the driving shaft 41, and a deflection rod 52 is rotatably arranged at the end of the rotating rod 51. The end of the deflection rod 52 is rotatably connected to the shift block 32, and the shift block 32 is provided with a plurality of top blocks 53 respectively matched with each group of clamping plates 12;

[0053] The synchronous shifting member 6 includes a switching rack 61 slidably arranged on the mounting bracket 25, a bull's eye shaft 62 matched with the adjacent top block 53 is arranged at the end of the switching rack 61, a rotating shaft 63 is rotatably arranged on the mounting bracket 25, a switching gear 64 used in conjunction with the switching rack 61 is arranged on the rotating shaft 63, a torsion spring 65 is arranged on the rotating shaft 63, and the two ends of the torsion spring 65 are respectively connected to the mounting bracket 25 and the rotating shaft 63, and a synchronous gear 6 is arranged on the rotating shaft 63. 6. Two synchronous racks 67 are slidably arranged on the mounting bracket 25 and are respectively located on both sides of the synchronous gear 66. Each group of the clamping plates 12 includes two matching clamping plates 68. The two clamping plates 68 of each group are respectively arranged at the ends of the synchronous rack 67. The clamping plates 68 are each provided with a spring 69 on one side close to the plate to be tested. A fitting plate is provided at the end of the spring 69. When the plate to be tested is placed, it is only necessary to move the spring 69 and the fitting plate upward or downward, and release the spring 69 after the plate is placed.

[0054] An automatic reset unit 7, which is disposed in the polygonal box 1 and connected to the extrusion switching unit 3 and the adjusting member 2, and is used to store force when the contact base 13 is displaced, and automatically drive the contact base 13 to reset when the contact base 13 is squeezed to the end by the adjusting member 2;

[0055] The automatic reset unit 7 includes a fixed plate 71 arranged on the mounting bracket 25, and a force storage member 8 is arranged on the mounting bracket 25 for storing force when the drive shaft 41 rotates. A locking member 9 is arranged on the mounting bracket 25 for cooperating with the force storage member 8 to store force, and when the contact base 13 is squeezed to the end by the electric push rod 21, the contact base 13 is automatically driven to reset, and the drive shaft 41 drives the spring spring 81 to store force when rotating, and locks and limits the position under the action of the ratchet 91 and the ratchet 97. When the extrusion rack 31 contacts the convex plate 94, the ratchet 97 will be lifted, thereby releasing the spring spring 81, and the contact base 13 will gradually rise. In the process, the splint 12 of each group will be switched. The setting of the damping layer 93 will not lock the ratchet 91 too quickly, so that the spring spring 81 has enough time to be released;

[0056] The force storage member 8 includes a spring 81 disposed between the fixed disk 71 and the driving shaft 41;

[0057] The locking member 9 includes a ratchet 91 arranged on the driving shaft 41, a shift frame 92 is slidably arranged on the mounting bracket 25, a damping layer 93 is arranged between the mounting bracket 25 and the shift frame 92, a convex plate 94 for contacting the extrusion rack 31 is arranged on the top of the shift frame 92, a spring 95 is arranged on the shift frame 92, and the two ends of the spring 95 are respectively connected to the mounting bracket 25 and the shift frame 92, a fixed shaft 96 is rotatably arranged at the end of the shift frame 92, and a ratchet 97 cooperating with the ratchet 91 is arranged on the fixed shaft 96, and a torsion spring 98 is sleeved on the outer side of the fixed shaft 96, and the two ends of the torsion spring 98 are respectively connected to the shift frame 92 and the ratchet 97.

[0058] When in use, after the device is started, the operator puts the plate to be tested into the polygonal box 1, and manually adjusts one group of clamps 12 in the multiple groups of clamps 12 to clamp the plate. The spring 69 and the bonding plate provided on the clamp 12 ensure that the plate is firmly clamped. When putting the plate to be tested, it is only necessary to push the spring 69 and the bonding plate upward or downward, and release the spring 69 after the plate is put in.

[0059] Subsequently, the electric push rod 21 and the driving motor 22 are started, and the mounting bracket 25 and the plate to be detected thereon are sent into the designated functional slot 11 through the cooperation of the rotating frame 23 and the electromagnet 24. The top cover of the functional slot 11 is automatically opened to allow the plate to enter. When the contact base 13 fits the bottom of the functional slot 11, the extrusion rack 31 moves upward under the action of the electric push rod 21, and cooperates with the extrusion gear 42 to rotate the driving shaft 41. The rotating rod 51 on the driving shaft 41 cooperates with the deflection rod 52 and the shift block 32, so that the shift block 32 slides back and forth on the mounting bracket 25.

[0060] The top block 53 on the shift block 32 squeezes the bull's eye shaft 62 to drive the switching rack 61 to shift, and then the synchronous racks 67 on both sides are shifted up and down respectively through the switching gear 64 and the synchronous gear 66 on the rotating shaft 63, so that a group of clamping plates 12 of the current clamping plate 68 are separated and the clamping is cancelled, while the remaining clamping plates 12 remain in the clamping state;

[0061] The plate undergoes corresponding treatments in the functional slot 11, such as cleaning, drying, penetration, and imaging. After the treatment is completed, the plate is sent to the next functional slot 11 through the adjusting member 2. When the contact base 13 is squeezed to the end by the electric push rod 21, the squeezing rack 31 contacts the convex plate 94 to lift the ratchet 97 to release the stored force of the clockwork spring 81. The release of the clockwork spring 81 drives the drive shaft 41 to reverse and then gradually reset the contact base 13 through a series of transmissions. The mounting bracket 25 lamp structure is raised. The setting of the damping layer 93 ensures that the clockwork spring 81 has enough time to release while preventing the ratchet 91 from locking too quickly.

[0062] During the rising process of the contact base 13, the extrusion switching unit 3 again reciprocates and switches the clamping state of the clamping plate 12 until the clockwork spring 81 is released. During the entire detection process, multiple groups of clamping plates 12 and contact bases 13 are switched and cyclically detected in multiple functional slots 11 until the plate completes the detection of all functional slots 11 and is finally taken out from the observation slot for further evaluation and analysis.

[0063] Example 2

[0064] See also Fig.13 , the present invention provides a technical solution:

[0065] Different from the first embodiment, a counterweight block 10 is provided on the contact base 13. The provision of the counterweight block 10 is beneficial to improving the stability of the mounting bracket 25 and its upper plate during the adjustment process.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A fluorescent penetrant testing device suitable for plate materials, characterized in that: The invention comprises a polygonal box (1), and further comprises: A plurality of functional grooves (11), wherein the plurality of functional grooves (11) are evenly arranged on each side surface of the polygonal box (1); A plurality of groups of clamping plates (12), wherein the plurality of groups of clamping plates (12) are respectively arranged in the polygonal box (1) and are used to clamp the plate to be tested; A contact base (13), wherein the contact base (13) is arranged in the polygonal box (1); An adjusting member (2), the adjusting member (2) being arranged in the polygonal box (1) and being used for synchronously adjusting the positions of the plurality of groups of clamping plates (12) and the contact base (13), so that the plurality of groups of clamping plates (12) and the contact base (13) are switched in the plurality of functional slots (11); An extrusion switching unit (3), the extrusion switching unit (3) being arranged in the polygonal box (1) and connected to a plurality of groups of clamping plates (12), after the contact base (13) is attached to the bottom of any functional groove (11), the extrusion switching unit (3) will drive the plurality of groups of clamping plates (12) to clamp and release the plates to be tested respectively, and ensure that there is always a group of clamping plates (12) in a clamping state; An automatic reset unit (7) is arranged in the polygonal box (1) and is connected to the extrusion switching unit (3) and the adjusting member (2), and is used to store force when the contact base (13) is displaced, and automatically drive the contact base (13) to reset when the contact base (13) is squeezed to the end by the adjusting member (2).

2. The fluorescent penetrant testing device for plates according to claim 1, characterized in that: The adjusting member (2) comprises an electric push rod (21) arranged in the middle of the polygonal box (1); a driving motor (22) is arranged at the end of the electric push rod (21); a rotating frame (23) is arranged at the output end of the driving motor (22); an electromagnet (24) is arranged at the end of the rotating frame (23); a mounting bracket (25) magnetically connected to the electromagnet (24) is arranged on the electromagnet (24); and a plurality of groups of the clamping plates (12) and the contact base (13) are arranged on the mounting bracket (25).

3. The fluorescent penetrant testing device for plate materials according to claim 2, characterized in that: The extrusion switching unit (3) comprises an extrusion rack (31) slidably arranged on the mounting bracket (25), the contact base (13) is arranged on the extrusion rack (31), the mounting bracket (25) is provided with an extrusion member (4) for being squeezed upward by the electric push rod (21) after the contact base (13) fits the functional groove (11), a displacement block (32) is slidably arranged on the mounting bracket (25), the mounting bracket (25) is provided with a reciprocating switching member (5) for driving the displacement block (32) to reciprocate on the mounting bracket (25), and the mounting bracket (25) is provided with a plurality of synchronous displacement members (6) respectively matched with a plurality of groups of clamps (12) for driving the plurality of groups of clamps (12) to clamp and release the plates to be inspected.

4. The fluorescent penetrant testing device for plate materials according to claim 3, characterized in that: The extrusion member (4) comprises a driving shaft (41) rotatably arranged on a mounting bracket (25), and an extrusion gear (42) matched with an extrusion rack (31) is arranged on the driving shaft (41).

5. The fluorescent penetrant testing device for plate materials according to claim 4, characterized in that: The reciprocating switching member (5) comprises a rotating rod (51) arranged on the driving shaft (41), a deflection rod (52) being rotatably arranged at the end of the rotating rod (51), the end of the deflection rod (52) being rotatably connected to a shift block (32), and a plurality of top blocks (53) respectively matched with each group of clamping plates (12) are arranged on the shift block (32).

6. The fluorescent penetrant testing device for plate materials according to claim 5, characterized in that: The synchronous shifting member (6) comprises a switching rack (61) slidably arranged on the mounting bracket (25), a bull's eye shaft (62) cooperating with an adjacent top block (53) being arranged at the end of the switching rack (61), a rotating shaft (63) being rotatably arranged on the mounting bracket (25), a switching gear (64) cooperating with the switching rack (61) being arranged on the rotating shaft (63), a torsion spring (65) being arranged on the rotating shaft (63), and two ends of the torsion spring (65) being respectively connected to the mounting bracket (25) and The two mounting brackets (25) are connected to a rotating shaft (63), a synchronous gear (66) is arranged on the rotating shaft (63), two synchronous racks (67) are slidably arranged on the mounting bracket (25) and are respectively located on both sides of the synchronous gear (66), each group of the clamping plates (12) includes two matching clamping plates (68), and the two clamping plates (68) of each group are respectively arranged at the ends of the synchronous racks (67), and the clamping plates (68) are arranged on the side close to the plate to be detected, and the end of the spring (69) is provided with a fitting plate.

7. The fluorescent penetrant testing device for plate materials according to claim 6, characterized in that: The automatic reset unit (7) comprises a fixed plate (71) arranged on a mounting bracket (25); a force storage member (8) is arranged on the mounting bracket (25) for storing force when the drive shaft (41) rotates; a locking member (9) is arranged on the mounting bracket (25) for cooperating with the force storage member (8) to store force, and automatically driving the contact base (13) to reset when the contact base (13) is squeezed to the end by the electric push rod (21).

8. The fluorescent penetrant testing device for plate materials according to claim 7, characterized in that: The force storage member (8) comprises a spring (81) arranged between a fixed disk (71) and a driving shaft (41).

9. The fluorescent penetrant testing device for plate materials according to claim 8, characterized in that: The locking member (9) comprises a ratchet (91) arranged on the driving shaft (41); a shift frame (92) is slidably arranged on the mounting bracket (25); a damping layer (93) is arranged between the mounting bracket (25) and the shift frame (92); a convex plate (94) for contacting the extrusion rack (31) is arranged on the top of the shift frame (92); a second spring (95) is arranged on the shift frame (92); two ends of the second spring (95) are respectively connected to the mounting bracket (25) and the shift frame (92); a fixed shaft (96) is rotatably arranged at the end of the shift frame (92); a ratchet (97) matched with the ratchet (91) is arranged on the fixed shaft (96); a second torsion spring (98) is sleeved on the outer side of the fixed shaft (96); two ends of the second torsion spring (98) are respectively connected to the shift frame (92) and the ratchet (97).

10. The fluorescent penetrant testing device for plate materials according to claim 1, characterized in that: A counterweight block (10) is arranged on the contact base (13).

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