A fluorescent penetrant testing device applicable to sheet materials

Abstract

The present invention relates to the technical field of fluorescent penetrant inspection devices, and specifically relates to a fluorescent penetrant inspection device suitable for plates, including a polygonal box body, and further including: multiple groups of clamping plates, multiple groups of the clamping plates are respectively arranged in the polygonal box body, a contact base, the contact base is arranged in the polygonal box body; an adjusting member, the adjusting member is arranged in the polygonal box body, an extrusion type switching unit, the extrusion type switching unit is arranged in the polygonal box body. This fluorescent penetrant inspection device suitable for plates enables the staff to automatically and synchronously adjust the positions of multiple groups of clamping plates and the contact base when inspecting the plates, realizes the switching and clamping of multiple groups of clamping plates, ensures that all areas of the plates can be fully inspected, thereby optimizing the inspection effect. The design of the extrusion type switching unit ensures that there is always a group of clamping plates in a clamping state, and the clamping of the plates will not be interrupted even during the switching process, thereby improving the stability of the inspection.

Description

Technical Field

[0001] The present invention relates to the technical field of fluorescent penetrant testing devices, and particularly to a fluorescent penetrant testing device suitable for plates. Background Art

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

[0003] However, there are obvious problems with the existing fluorescent penetrant testing devices for plates in clamping the plates. Traditional testing devices usually adopt clamping mechanisms with fixed positions. This means that during the testing process, once the plate is clamped, its position cannot be changed. Due to the fixed clamping position, the testing personnel can only detect specific areas of the plate, which may lead to some potential defects being missed. Especially when the defects are located outside the clamping area, the detection effect will be greatly reduced. In order to comprehensively detect the plate, the testing personnel need to manually change the clamping position, which is not only time-consuming and laborious but also may cause errors and omissions during the testing process. For this reason, we propose a fluorescent penetrant testing device suitable for plates. Summary of the Invention

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

[0005] To solve the above technical problem, the embodiment of this application provides a fluorescent penetrant testing device suitable for plates, including a polygonal box body, and further including:

[0006] A plurality of functional slots, and the plurality of functional slots are evenly opened on each side of the polygonal box body;

[0007] Multiple groups of clamping plates, and the multiple groups of clamping plates are respectively arranged in the polygonal box body for clamping the plate to be detected;

[0008] A contact base, and the contact base is arranged in the polygonal box body;

[0009] An adjusting member, and the adjusting member is arranged in the polygonal box body for synchronously adjusting the positions of the multiple groups of clamping plates and the contact base, so that the multiple groups of clamping plates and the contact base can be switched in the multiple functional slots;

[0010] An extrusion type switching unit, and the extrusion type switching unit is arranged in the polygonal box body and is connected to the multiple groups of clamping plates. After the contact base fits the bottom of any functional slot, the extrusion type switching unit will drive the multiple groups of clamping plates to clamp and release the plate to be detected respectively, and ensure that there is always a group of clamping plates in the clamping state;

[0011] An automatic reset unit is provided inside a polygonal box body and is connected to an extrusion type switching unit and an adjusting member. It is used to store energy when the contact base is displaced and automatically drive the contact base to reset when the contact base is extruded to the end by the adjusting member. The extrusion type switching unit includes an extrusion rack slidably arranged on the adjusting member, and the contact base is arranged on the extrusion rack. An extrusion member is arranged on the adjusting member to be upwardly extruded by the adjusting member after the contact base fits into the function groove. A displacement block is slidably arranged on the adjusting member, and a reciprocating switching member is arranged on the adjusting member to drive the displacement block to reciprocate on the adjusting member. A plurality of synchronous displacement members respectively cooperating with multiple groups of clamping plates are arranged on the adjusting member to drive the multiple groups of clamping plates to clamp and release the plates to be detected respectively.

[0012] In some embodiments, the adjusting member includes an electric push rod arranged in the middle of the polygonal box body. 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. An installation bracket is magnetically connected to the electromagnet. Multiple groups of the clamping plates and the contact base are all arranged on the installation bracket.

[0013] In some embodiments, the extrusion member includes a driving shaft rotatably arranged on the installation bracket, and an extrusion gear cooperating with the extrusion rack is arranged on the driving shaft.

[0014] In some embodiments, the reciprocating switching member includes a rotating rod arranged on the driving shaft. A deflecting rod is rotatably arranged at the end of the rotating rod. The end of the deflecting rod is rotatably connected to the displacement block. A plurality of top blocks respectively cooperating with each group of clamping plates are arranged on the displacement block.

[0015] In some embodiments, the synchronous displacement member includes a switching rack slidably arranged on the installation bracket. A bull's eye shaft cooperating with the adjacent top block is arranged at the end of the switching rack. A rotating shaft is rotatably arranged on the installation bracket. A switching gear cooperating with the switching rack is arranged on the rotating shaft. A torsion spring I is arranged on the rotating shaft, and two ends of the torsion spring I are respectively connected to the installation bracket and the rotating shaft. A synchronous gear is arranged on the rotating shaft. Two synchronous racks respectively located on both sides of the synchronous gear are slidably arranged on the installation bracket. Each group of clamping plates includes two cooperating clamping plates. The two clamping plates of each group are respectively arranged at the ends of the synchronous racks. A spring I is arranged on the side of each clamping plate close to the plate to be detected. A fitting plate is arranged at the end of the spring I.

[0016] In some embodiments, the automatic reset unit includes a fixed disk disposed on the mounting bracket. A power storage member is arranged on the mounting bracket for storing power when the drive shaft rotates. A locking member is arranged on the mounting bracket for cooperating with the power storage member to store power and automatically driving the contact base to reset when the contact base is squeezed to the end by the electric push rod.

[0017] In some embodiments, the power storage member includes a clockwork spring disposed between the fixed disk and the drive shaft.

[0018] In some embodiments, the locking member includes a ratchet wheel disposed on the drive shaft. A shifting frame is slidably arranged on the mounting bracket. A damping layer is arranged between the mounting bracket and the shifting frame. A convex plate for contacting the extrusion rack is arranged at the top of the shifting frame. A second spring is arranged on the shifting frame, and two ends of the second spring are respectively connected to the mounting bracket and the shifting frame. A fixed shaft is rotatably arranged at the end of the shifting frame. A ratchet tooth cooperating with the ratchet wheel is arranged on the fixed shaft. A second torsion spring is sleeved outside the fixed shaft, and two ends of the second torsion spring are respectively connected to the shifting frame and the ratchet tooth.

[0019] In some embodiments, a counterweight is arranged on the contact base.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. Multi-functional groove design, improving detection efficiency: By evenly opening a plurality of functional grooves on each side of the polygonal box body, the plate is clamped and then sequentially enters the functional grooves for detection, without frequently changing the position of the plate, significantly improving the detection efficiency;

[0022] 2. Automatically switching the clamping position and optimizing the detection effect: By using the adjusting member and the extrusion type switching unit, the device can automatically and synchronously adjust the positions of multiple groups of clamping plates and the contact base, realizing the position switching in multiple detection grooves and the switching clamping of multiple groups of clamping plates. This not only avoids the detection blind areas that may be caused by the traditional fixed clamping method, but also ensures that all areas of the plate can be fully detected, thus optimizing the detection effect;

[0023] 3. Automatic reset function, simplifying the operation process: The automatic reset unit can store power when the contact base is displaced and automatically drive the contact base to reset when it is squeezed to the end by the adjusting member. This function not only simplifies the operation process, but also reduces manual intervention and improves the automation degree of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is the present invention Figure 1 is a schematic diagram of the structure in another orientation;

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the sectional structure;

[0027] Figure 4 For the present invention Figure 2 Schematic diagram of the sectional structure;

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the planar structure;

[0029] Figure 6 Schematic diagram of the structure of the adjusting member, the extrusion type switching unit and the automatic reset unit of the present invention;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the structure after clamping the plate body to be detected;

[0031] Figure 8 Schematic diagram of a partial structure of the extrusion type switching unit of the present invention;

[0032] Figure 9 Schematic diagram of the structure of the synchronous shifting member of the present invention;

[0033] Figure 10 For the present invention Figure 6 Schematic diagram of the sectional structure;

[0034] Figure 11 For the present invention Figure 10 Schematic diagram of the exploded partial structure;

[0035] Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure of area A in the present invention;

[0036] Figure 13 Schematic diagram of the structure of Embodiment 2 of the present invention.

[0037] 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

[0038] 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. Example 1

[0039] See also Figures 1-12 , the present invention provides a technical solution:

[0040] A fluorescent penetrant detection device suitable for plate materials comprises a polygonal box 1 and also includes:

[0041] 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;

[0042] 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.;

[0043] 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;

[0044] Contact base 13, the contact base 13 is arranged inside the polygonal box body 1;

[0045] Adjusting member 2, the adjusting member 2 is arranged inside the polygonal box body 1 and is used to synchronously adjust the positions of multiple groups of clamping plates 12 and the contact base 13, so that the multiple groups of clamping plates 12 and the contact base 13 are switched within multiple function slots 11;

[0046] The adjusting member 2 includes an electric push rod 21 arranged in the middle of the polygonal box body 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. An installation bracket 25 magnetically connected to the electromagnet 24 is arranged on the electromagnet 24. Multiple groups of the clamping plates 12 and the contact base 13 are all arranged on the installation bracket 25. After the plate to be detected is clamped, the height and angle of the rotating frame 23 are adjusted by the rotation of the electric push rod 21 and the driving motor 22, so that the electromagnet 24 adsorbs the installation bracket 25, and then the installation bracket 25 and the plate body to be detected thereon are sent into the function slot 11 by the rotation of the electric push rod 21 and the driving motor 22. When being sent into the function slot 11, the function slot 11 will automatically open the top cover plate. This technology is a common existing structure and will not be elaborated here;

[0047] Extrusion type switching unit 3, the extrusion type switching unit 3 is arranged inside the polygonal box body 1 and is connected to multiple groups of clamping plates 12. After the contact base 13 fits the bottom of any function slot 11, the extrusion type switching unit 3 will drive multiple groups of clamping plates 12 to clamp and release the plate to be detected respectively, and ensure that there is always a group of clamping plates 12 in the clamping state;

[0048] The extrusion type switching unit 3 includes an extrusion rack 31 slidably arranged on the adjusting member 2, the contact base 13 is arranged on the extrusion rack 31, an extrusion member 4 is arranged on the adjusting member 2 and is used to be extruded upward by the adjusting member 2 after the contact base 13 fits the function groove 11. A shifting block 32 is slidably arranged on the adjusting member 2, and a reciprocating switching member 5 is arranged on the adjusting member 2 and is used to drive the shifting block 32 to reciprocate on the adjusting member 2. A plurality of synchronous shifting members 6 respectively cooperating with multiple groups of clamping plates 12 are arranged on the adjusting member 2 and are used to drive the multiple groups of clamping plates 12 to clamp and release the plate to be detected respectively. After the contact base 13 contacts the bottom of the function groove 11, it is extruded under the action of the electric push rod 21, so that the contact base 13 and the extrusion rack 31 move upward, driving the extrusion gear 42 and the driving shaft 41 to rotate. Then the driving shaft 41 drives the rotating rod 51 to rotate. Since the shifting block 32 is in the mounting bracket 25, under the action of the deflecting rod 52, the shifting block 32 reciprocates in the mounting bracket 25, thereby driving the top block 53 to squeeze the bull's eye shaft 62 and causing the switching rack 61 to shift. The shifting of the switching rack 61 will drive the switching gear 64 and the rotating shaft 63 to rotate. The synchronous gears 66 on the rotating shaft 63 will drive the synchronous racks 67 on both sides to move up and down respectively, so that the two clamping plates 68 of one group are separated, canceling the clamping of the plate, and the remaining clamping plates 68 will not separate from each other;

[0049] The extrusion member 4 includes a driving shaft 41 rotatably arranged on the mounting bracket 25, and an extrusion gear 42 cooperating with the extrusion rack 31 is arranged on the driving shaft 41;

[0050] The reciprocating switching member 5 includes a rotating rod 51 arranged on the driving shaft 41, a deflecting rod 52 is rotatably arranged at the end of the rotating rod 51, the end of the deflecting rod 52 is rotatably connected to the shifting block 32, and a plurality of top blocks 53 respectively cooperating with each group of clamping plates 12 are arranged on the shifting block 32;

[0051] The synchronization shifting member 6 includes a switching rack 61 slidably arranged on the mounting bracket 25. A bull's-eye shaft 62 which is 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 which is matched with the switching rack 61 is arranged on the rotating shaft 63. A first torsion spring 65 is arranged on the rotating shaft 63. Two ends of the first torsion spring 65 are respectively connected with the mounting bracket 25 and the rotating shaft 63. A synchronization gear 66 is arranged on the rotating shaft 63. Two synchronization racks 67 which are respectively located on both sides of the synchronization gear 66 are slidably arranged on the mounting bracket 25. Each group of clamping plates 12 includes two cooperating clamping plates 68. The two clamping plates 68 of each group are respectively arranged at the ends of the synchronization racks 67. A first spring 69 is arranged on each side of the clamping plate 68 close to the plate to be detected. A fitting plate is arranged at the end of the first spring 69. When putting the plate to be detected, just move the first spring 69 and the fitting plate up or down, and then release the first spring 69 after putting the plate in;

[0052] An automatic reset unit 7 is arranged in the polygonal box body 1 and is connected with the extrusion type switching unit 3 and the adjusting member 2, and is used for storing energy when the contact base 13 is shifted, and automatically driving the contact base 13 to reset when the contact base 13 is extruded to the end by the adjusting member 2;

[0053] The automatic reset unit 7 includes a fixed disk 71 arranged on the mounting bracket 25. A power storage member 8 is arranged on the mounting bracket 25 and is used for storing energy when the driving shaft 41 rotates. A locking member 9 is arranged on the mounting bracket 25 and is used for cooperating with the power storage member 8 to store energy, and automatically driving the contact base 13 to reset when the contact base 13 is extruded to the end by the electric push rod 21. When the driving shaft 41 rotates, the clockwork spring 81 is driven to store energy, and is locked and limited under the action of the ratchet wheel 91 and the ratchet teeth 97. When the extrusion rack 31 contacts the convex plate 94, the ratchet teeth 97 will be lifted, so that the clockwork spring 81 is released, and the contact base 13 will gradually rise. During this process, each group of clamping plates 12 will be switched. The setting of the damping layer 93 will not lock the ratchet wheel 91 quickly, so that the clockwork spring 81 has enough time to be released;

[0054] The power storage member 8 includes a clockwork spring 81 arranged between the fixed disk 71 and the driving shaft 41;

[0055] The locking member 9 includes a ratchet wheel 91 provided on the drive shaft 41. A shifting frame 92 is slidably provided on the mounting bracket 25. A damping layer 93 is provided between the mounting bracket 25 and the shifting frame 92. A convex plate 94 for contacting the extrusion rack 31 is provided at the top of the shifting frame 92. A second spring 95 is provided on the shifting frame 92. Two ends of the second spring 95 are respectively connected to the mounting bracket 25 and the shifting frame 92. A fixed shaft 96 is rotatably provided at the end of the shifting frame 92. A ratchet tooth 97 cooperating with the ratchet wheel 91 is provided on the fixed shaft 96. A second torsion spring 98 is sleeved outside the fixed shaft 96. Two ends of the second torsion spring 98 are respectively connected to the shifting frame 92 and the ratchet tooth 97.

[0056] During use, after the device is started, the operator places the plate to be detected into the polygonal box body 1, and manually adjusts one of the plurality of clamping plates 12 to clamp the plate. The first spring 69 and the fitting plate provided on the clamping plate 12 ensure that the plate is firmly clamped. When placing the plate to be detected, only need to move the first spring 69 and the fitting plate up or down, and then release the first spring 69 after the plate is placed.

[0057] Subsequently, start the electric push rod 21 and the drive motor 22. Through the cooperation of the rotating frame 23 and the electromagnet 24, the mounting bracket 25 and the plate to be detected thereon are sent into the specified functional slot 11. The top cover plate of the functional slot 11 automatically opens to allow the plate to enter. When the contact base 13 fits against 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 drive shaft 41. The rotating rod 51 on the drive shaft 41, through the cooperation of the deflection rod 52 and the shifting block 32, makes the shifting block 32 slide reciprocally on the mounting bracket 25.

[0058] The top block 53 on the shifting block 32 presses the bull's-eye shaft 62 to drive the switching rack 61 to shift, and further, through the switching gear 64 and the synchronous gear 66 on the rotating shaft 63, the two-sided synchronous racks 67 shift up and down respectively, resulting in the separation of the clamping plate 12 that currently clamps the plate 68 to cancel the clamping, while the remaining clamping plates 12 remain in the clamping state.

[0059] The plate undergoes corresponding treatments such as cleaning, drying, penetration, and imaging in the functional slot 11. After the treatment is completed, the plate is sent into 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 extrusion rack 31 contacts the convex plate 94 to lift the ratchet tooth 97 to release the stored energy of the spiral spring 81. The release of the spiral spring 81 drives the drive shaft 41 to reverse, and then through a series of transmissions, the contact base 13 gradually resets. Structures such as the mounting bracket 25 are lifted. The setting of the damping layer 93 ensures that the spiral spring 81 has enough time for release and at the same time avoids the ratchet wheel 91 from locking too quickly.

[0060] During the rising process of the contact base 13, the extrusion type switching unit 3 reciprocally switches the clamping state of the clamping plate 12 again until the winding spring 81 is completely released. During the entire detection process, multiple groups of clamping plates 12 and the contact base 13 perform switching cycle detections in multiple function slots 11 until the board completes the detection of all function slots 11 and is finally taken out from the observation slot for further evaluation and analysis. Embodiment 2

[0061] Please refer to Figure 13 , the present invention provides a technical solution:

[0062] Different from Embodiment 1, a counterweight 10 is provided on the contact base 13. The setting of the counterweight 10 is beneficial to improving the stability of the mounting bracket 25 and the plate body thereon during the adjustment process.

[0063] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0064] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present 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), and 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 plate 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), the automatic reset unit (7) being arranged in the polygonal box (1) and connected to the extrusion switching unit (3) and the adjusting member (2), and being used for storing force when the contact base (13) is displaced, and automatically driving the contact base (13) to reset when the contact base (13) is squeezed to the end by the adjusting member (2), the extrusion switching unit (3) comprising an extrusion rack (31) slidably arranged on the adjusting member (2), the contact base (13) being arranged on the extrusion rack (31), and the adjusting member ( The adjusting member (2) is provided with an extrusion member (4) for being pressed upward by the adjusting member (2) after the contact base (13) fits the functional groove (11); the adjusting member (2) is provided with a displacement block (32) for sliding; the adjusting member (2) is provided with a reciprocating switching member (5) for driving the displacement block (32) to reciprocate on the adjusting member (2); the adjusting member (2) is provided with a plurality of synchronous displacement members (6) respectively matched with the plurality of clamping plates (12) for driving the plurality of clamping plates (12) to clamp and release the plate to be inspected.

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 bases (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 member (4) comprises a driving shaft (41) rotatably mounted on a mounting bracket (25), and an extrusion gear (42) for use in conjunction with an extrusion rack (31) is disposed on the driving shaft (41).

4. The fluorescent penetrant testing device for plate materials according to claim 3, 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 matching with each group of clamping plates (12) being arranged on the shift block (32).

5. The fluorescent penetrant testing device for plate materials according to claim 4, 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) 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) cooperating with the switching rack (61) is arranged on the rotating shaft (63); a torsion spring (65) is arranged on the rotating shaft (63); two ends of the torsion spring (65) are 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 each provided with a spring 1 (69) on one side of the clamping plates (68) close to the plate to be detected, and a fitting plate is arranged at the end of the spring 1 (69).

6. The fluorescent penetrant testing device for plate materials according to claim 5, characterized in that: The automatic reset unit (7) comprises a fixed plate (71) arranged on the 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).

7. The fluorescent penetrant testing device for plate materials according to claim 6, characterized in that: The force storage member (8) comprises a spring (81) arranged between a fixed disk (71) and a drive shaft (41).

8. The fluorescent penetrant testing device for plate materials according to claim 7, 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) matching 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).

9. 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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