Novel high-quality aluminum alloy plate repeated bending test device

Abstract

The invention provides a novel high-quality aluminum alloy plate repeated bending testing device, and relates to the technical field of metal testing devices. The machine body is of a rectangular structure, the auxiliary plates on the two sides are made to be in linkage with the main plate by means of matching of the inserting shafts on the linkage rods and the communicating holes of the main plate and the auxiliary plates and the fixing effect of the limiting rods, and when the main plate is turned over to conduct bending detection on an aluminum plate, an additional detection station is added through the design, so that the detection efficiency is improved. Compared with a traditional device which can only detect one set of aluminum plates at a time, the aluminum plate bending detection device can conduct bending detection on multiple sets of aluminum plates at the same time, the time cost of large-scale detection tasks is greatly reduced, the requirements for detection efficiency and large-scale detection in industrial production are effectively met, and the problems that an existing bending detection structure is low in efficiency and large in detection scale are solved. The problems that only one group of aluminum plate samples can be detected each time, a one-by-one detection mode needs to be adopted in the face of large-scale detection tasks, and the requirements for detection efficiency and large-scale detection in industrial production cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal testing devices, in particular to a novel high-quality aluminum alloy plate repeated bending testing device. BACKGROUND

[0002] In modern industrial production, aluminum plates are widely used in various fields due to their light weight, corrosion resistance, good electrical conductivity and thermal conductivity, and other excellent properties. With the continuous development of material science and technology, new composite aluminum plates are emerging. These aluminum plates are made by combining different materials, giving the aluminum plates more outstanding performance to meet the increasingly diverse and demanding industrial needs. In order to ensure the reliability and stability of the aluminum plates in actual application, the fatigue strength of the new composite aluminum plates must be strictly detected after production. Currently, using a bending machine to detect aluminum plates is an important means to evaluate their fatigue strength. By repeatedly bending the aluminum plates with the bending machine, the bending stress that the aluminum plates may withstand in actual use is simulated, and whether the aluminum plates appear cracking, breaking and other failure phenomena after a certain number of bending is observed, so as to judge the fatigue strength of the aluminum plates.

[0003] However, there are some deficiencies in the current design of the aluminum plate repeated bending testing device: Firstly, the sample fixing structure of the device is not reasonably designed, usually only having the function of clamping a group of aluminum plate samples at a time, and cannot simultaneously clamp and detect aluminum plates of different thicknesses, thereby limiting the practicality of the fixing structure; Secondly, the bending detection structure is low in efficiency, and can only complete the detection of a group of aluminum plate samples at a time. When facing a large number of detection tasks, it needs to be detected one by one, which cannot meet the needs of detection efficiency and large-scale detection in industrial production. SUMMARY

[0004] In view of the above problems, one object of the present application is to overcome these shortcomings, and more specifically to provide a novel high-quality aluminum alloy plate repeated bending testing device, which can clamp and detect multiple groups of aluminum plates of different thicknesses at the same time, improve the usability of the fixing structure, and can simultaneously bend and detect multiple groups of aluminum plates, thereby improving the detection efficiency.

[0005] The application discloses a novel high-quality aluminum alloy plate repeated bending test device.

[0006] Preferably, the front side of the body is rotatably provided with a driving shaft connected with a motor, the motor for controlling the rotation of the driving shaft is controlled by the control switch, and the driving shaft is screwedly provided with a limiting ring.

[0007] Preferably, the upper sides of the fixed frame are symmetrically provided with penetrating installation holes, the front side of the fixed frame is provided with three groups of insertion grooves, the upper end of the fixed frame is provided with a main plate, the upper end of the main plate is provided with a rectangular groove, the upper sides of the fixed frame are provided with auxiliary plates, the upper end of the auxiliary plate is internally provided with a rectangular groove, the rear side of the auxiliary plate is provided with an insertion rod at the lower end, and the insertion rod is inserted into the installation hole.

[0008] Preferably, the upper end of the movable frame is inserted into the insertion groove, the upper position of the movable frame is equidistantly provided with a positioning hole, the two sides of the movable frame are provided with a guide groove, the front side of the movable frame is inserted with a bottom plate at the lower end, and the inside of the bottom plate is provided with a notch groove penetrating through the front side.

[0009] Preferably, the rear side of the linkage rod is provided with three groups of insertion shafts, the inside of the upper end of the insertion shaft is provided with a clamping groove, and the inside of the clamping groove is provided with an arc-shaped convex structure.

[0010] Preferably, the rear end of the linkage rod is provided with a limiting rod, the limiting rod is inserted into the clamping groove on each group of insertion shafts, the side end of the limiting rod is provided with a limiting groove, and the limiting groove is inserted into the arc-shaped convex structure in the clamping groove.

[0011] Preferably, the movable block is in a U-shaped structure, and the inside of the movable block is rotatably provided with a double-head screw rod; the bottom of the lower movable block is provided with a counterweight hanger; the inside of the movable block is slidably provided with two groups of base plates, and the base plates are screw-connected with the double-head screw rod in the movable block.

[0012] Preferably, the lower end of the movable block is provided with side rods, each group of the base plate is provided with three groups of clamping pieces, a screw rod is rotatably installed on each group of the clamping pieces, the screw rod is in threaded connection with the base plate, and the two sides of the clamping piece are provided with guide rods in sliding fit with the movable block.

[0013] Preferably, the inside of the guide sleeve is provided with a vertical rectangular through groove, and the rear side of the guide sleeve is symmetrically provided with four groups of rear rods.

[0014] Preferably, the two ends of the guide sleeve are provided with fixing grooves, and the two sides of the rectangular through groove in the guide sleeve are sleeved with contact pieces, and the inner side arc convex structure of the contact piece is clamped with the fixing groove.

[0015] The present application provides a novel high-quality aluminum alloy plate repeated bending test device, which has the following beneficial effects:

[0016] 1、In the present application, the vice plate is rotatably installed on the two sides of the main plate, i.e. the two ends of the fixing frame, the communication hole of the linkage rod is matched with the main plate and the vice plate, and the fixing effect of the limiting rod, so that the two sides of the vice plate can be linked with the main plate, when the main plate is turned over to bend the aluminum plate, this design increases the additional detection station, compared with the traditional single detection device which can only detect one group of aluminum plates at a time, the present application can simultaneously detect multiple groups of aluminum plates, greatly reducing the time cost of large batch detection task, effectively meeting the demand for detection efficiency and large-scale detection in industrial production.

[0017] 2、In the present application, two groups of base plates controlled by double-head screw rods are arranged in the U-shaped movable block, three groups of independently movable clamping pieces are installed on each group of the base plate through screw rods, the guide rods on the clamping pieces are in sliding fit with the movable block, the clamping pieces can be moved to different positions by rotating the screw rods on the clamping pieces, and the tolerance between the clamping pieces and the aluminum plate when clamping aluminum plates of different thicknesses is compensated, which enables the movable block to simultaneously fix and clamp aluminum plates of three different thicknesses, overcoming the problem that the practicality of the traditional fixed structure is defective due to the fact that only one group of aluminum plates can be clamped at a time, and by means of the three groups of independently movable clamping pieces, the fixed structure of the present application can clamp and detect three groups of aluminum plates of different thicknesses at a time, significantly improving the practicality of the fixed structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be better understood by those skilled in the art from the following drawings, and the advantages of the present application will be more clearly embodied. The drawings described herein are only for the purpose of illustrating selected embodiments, not all possible embodiments, and are intended to limit the scope of the present application.

[0019] In the drawings: Figure 1A perspective view according to an embodiment of the present application is shown.

[0020] Figure 2 A disassembled view according to an embodiment of the present application is shown.

[0021] Figure 3 A main plate and driving shaft connection view according to an embodiment of the present application is shown.

[0022] Figure 4 A partial connection structure view according to an embodiment of the present application is shown.

[0023] Figure 5 A fixed frame and movable frame connection view according to an embodiment of the present application is shown.

[0024] Figure 6 A movable frame and movable block connection view according to an embodiment of the present application is shown.

[0025] Figure 7 A movable block cross-sectional view according to an embodiment of the present application is shown.

[0026] Figure 8 A movable block disassembled view according to an embodiment of the present application is shown.

[0027] Figure 9 A guide sleeve cross-sectional view according to an embodiment of the present application is shown.

[0028] List of Reference Signs 1, body; 101, control switch; 102, driving shaft; 1021, limiting ring; 2, fixed frame; 201, mounting hole; 202, insertion slot; 203, main plate; 2031, sub-plate; 2032, insertion rod; 204, matching groove; 205, communication hole; 206, movable frame; 2061, positioning hole; 2062, guide slot; 207, bottom plate; 2071, notch slot; 3, linkage rod; 301, insertion shaft; 3011, clamping slot; 302, limiting rod; 3021, limiting slot; 4, movable block; 401, counterweight hanging piece; 402, base plate; 403, side rod; 404, clamping piece; 4041, guide rod; 5, guide sleeve; 501, rear rod; 502, fixed slot; 503, contact piece. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0030] Example 1: Please refer to Figures 1 to 9 As shown: The present invention provides a novel high-quality aluminum alloy plate repeated bending test device, comprising: a body 1; the body 1 is a rectangular structure, and a control switch 101 is provided on the front side of the body 1; a fixing frame 2 is provided at the front end of the body 1, the fixing frame 2 is penetrated by a drive shaft 102 on the body 1, a matching groove 204 on a main board 203 on the front side of the fixing frame 2 is plugged into and matched with the drive shaft 102, a linkage rod 3 is provided at the front end of the main board 203, a plug-in shaft 301 on the outside of the linkage rod 3 is plugged into and matched with a connecting hole 205 in a sub-board 2031 on the main board 203 and its side end, the rear sides of the main board 203 and the sub-board 2031 are adjacent to the limit rod 302 on the linkage rod 3, and the fixing frame 2 is provided with a plurality of connecting rods 204, 204 and 204. Movable blocks 4 are provided on the upper and lower sides. The upper movable block 4 is installed inside the main board 203 and the sub-board 2031 above the fixed frame 2 through a screw thread. The lower movable block 4 is arranged on the front side of the movable frame 206 below the fixed frame 2. The side rods 403 at both ends of the lower movable block 4 slide with the guide groove 2062 at the outer end of the movable frame 206. The counterweight hanger 401 on the lower movable block 4 passes through the notch groove 2071 in the bottom plate 207 at the lower end of the movable frame 206. A guide sleeve 5 is provided on the front side of the movable frame 206. The rear rod 501 at the outer end of the guide sleeve 5 is plugged into the positioning hole 2061 in the movable frame 206, and the upper and lower ends of the guide sleeve 5 are adjacent to the movable block 4.

[0031] In the embodiment of the present invention, Figure 2 and Figure 3 As shown, a driving shaft 102 connected to a motor is rotatably installed at the upper front end of the body 1, and the motor that controls the rotation of the driving shaft 102 is controlled by a control switch 101, and a limiting ring 1021 is threadedly installed on the driving shaft 102; a driving shaft 102 with a cross structure is provided, and by inserting the driving shaft 102 into the matching groove 204, the driving shaft 102 can drive the main board 203 to rotate; a limiting ring 1021 is provided to limit the main board 203 on the driving shaft 102.

[0032] As a second embodiment of the present invention, based on the first embodiment, Figure 3 and Figure 5As shown, the upper two sides of the fixed frame 2 are symmetrically provided with through holes 201, and the front side of the fixed frame 2 is provided with three groups of insertion grooves 202, the upper end of the fixed frame 2 is provided with a main plate 203, the upper end of the main plate 203 is provided with a rectangular groove, the upper end of the two sides of the fixed frame 2 is provided with a sub-plate 2031, the upper end of the sub-plate 2031 is internally provided with a rectangular groove, the lower end of the rear side of the sub-plate 2031 is provided with an insertion rod 2032, and the insertion rod 2032 is inserted and matched with the mounting hole 201; the inner side of the lower end of the main plate 203 is provided with a cross-shaped matching groove 204, the middle position of the main plate 203 and the sub-plate 2031 is provided with a communication hole 205, the upper end of the movable frame 206 is inserted and matched with the insertion groove 202, and the upper position of the movable frame 206 is equidistantly provided with a positioning hole 2061, and the two sides of the movable frame 206 are provided with a guide groove 2062, the lower end of the front side of the movable frame 206 is inserted with a bottom plate 207, and the inner side of the bottom plate 207 is provided with a gap groove 2071 penetrating through the front side thereof; the fixed frame 2 is arranged, the main plate 203 and the sub-plate 2031 can be installed on the fixed frame 2; the mounting hole 201 is arranged, the sub-plate 2031 can be rotatably installed on the fixed frame 2 by inserting the mounting hole 201 with the insertion rod 2032; the insertion groove 202 is arranged, the movable frame 206 can be inserted and installed on the fixed frame 2 through the insertion groove 202; the main plate 203 is arranged, the aluminum plate can be bent and detected by reciprocating and rotating the main plate 203 on the fixed frame 2; the sub-plate 2031 is arranged, the aluminum plate can be bent and detected by overturning the sub-plate 2031 with the main plate 203; meanwhile, the rectangular grooves are arranged in the main plate 203 and the sub-plate 2031, the installation position of the movable block 4 in the interior can be adjusted, so that the bending trajectory of the aluminum plate is changed, the insertion rod 2032 is arranged, the sub-plate 2031 can be rotatably installed on the fixed frame 2 through the insertion rod 2032; the cross-shaped matching groove 204 is arranged, the main plate 203 can be installed on the driving shaft 102 after the matching groove 204 is inserted with the driving shaft 102; the communication hole 205 is arranged, the linkage plate 3 can be installed on the main plate 203 and the sub-plate 2031; the movable frame 206 is arranged, the movable block 4 and the guide sleeve 5 can be installed on the movable frame 206; the positioning hole 2061 is arranged, the guide sleeve 5 can be inserted and installed on the movable frame 206 through the positioning hole 2061; the guide groove 2062 is arranged, the movable block 4 can be slidingly matched with the movable frame 206 through the guide groove 2062; the bottom plate 207 is arranged, the movement of the movable block 4 on the movable frame 206 can be limited; the gap groove 2071 is arranged, the counterweight hanging piece 401 can penetrate through the bottom plate 207 through the gap groove 2071.

[0033] As a third embodiment of the present application, on the basis of the first embodiment, as shown in Figure 4As shown, the rear side of the linkage rod 3 is provided with three groups of plug-in shafts 301, the inner side of the upper end of the plug-in shaft 301 is provided with a clamping groove 3011, the inside of the clamping groove 3011 is provided with an arc-shaped protruding structure; the rear end of the linkage rod 3 is provided with a limiting rod 302, the limiting rod 302 is plugged and matched with the clamping groove 3011 on each group of plug-in shafts 301, the side end of the limiting rod 302 is provided with a limiting groove 3021, the limiting groove 3021 is plugged and matched with the arc-shaped protruding structure in the clamping groove 3011; the linkage rod 3 is arranged, so that the main plate 203 and the two groups of auxiliary plates 2031 are connected through the linkage rod 3; the plug-in shaft 301 is arranged, so that the linkage rod 3 is rotationally matched with the main plate 203 and the auxiliary plate 2031 through the plug-in shaft 301; the clamping groove 3011 is arranged, so that the limiting rod 302 is inserted and assembled with the plug-in shaft 301 through the clamping groove 3011; the limiting rod 302 is arranged, so that the plug-in shaft 301 is limited on the main plate 203 and the auxiliary plate 2031; the limiting groove 3021 is arranged, so that the limiting rod 302 and the plug-in shaft 301 are fixed by inserting the limiting groove 3021 and the arc-shaped protruding structure in the clamping groove 3011.

[0034] By sleeving the main plate 203 on the driving shaft 102, rotationally installing the auxiliary plate 2031 at both ends of the fixing frame 2, plugging and combining the plug-in shaft 301 on the linkage rod 3 with the communication hole 205 on the main plate 203 and the auxiliary plate 2031, and inserting and assembling the limiting rod 302 on the three groups of plug-in shafts 301 at the rear side of the linkage rod 3, the two side auxiliary plates 2031 can be linked with the main plate 203, so that additional detection stations are increased, and the efficiency of aluminum plate detection is improved.

[0035] As the fourth embodiment of the present application, on the basis of the first embodiment, as shown in Figure 7 and 8As shown, the movable block 4 is U-shaped structure, and the double-head screw is rotatably installed in the movable block 4; the bottom of the lower end movable block 4 is provided with a counterweight hanging piece 401; two groups of base plates 402 are slidably installed in the movable block 4, the base plate 402 is threadedly connected with the double-head screw in the movable block 4, the two sides of the lower end movable block 4 are provided with side rods 403, three groups of clamping pieces 404 are arranged on each base plate 402, a screw rod is rotatably installed on each group of clamping pieces 404, the screw rod is threadedly connected with the base plate 402, the two sides of the clamping piece 404 are provided with guide rods 4041, and the guide rods 4041 are slidably connected with the movable block 4; the movable block 4 is arranged, two groups of clamping pieces 404 can be arranged in the movable block 4; the counterweight hanging piece 401 is arranged, the movable block 4 at the lower end of the device can be provided with counterweight; the base plate 402 is arranged, the clamping piece 404 can be arranged on the base plate 402; the side rod 403 is arranged, the lower end movable block 4 can be slidably installed on the movable frame 206 through the side rod 403; the clamping piece 404 is arranged, the aluminum plate inserted into the movable block 4 can be clamped through the clamping piece 404; the guide rod 4041 is arranged, the clamping piece 404 can move linearly in the movable block 4 through the guiding effect of the guide rod 4041.

[0036] The present application sets two groups of base plates 402 controlled by the double-head screw in the movable block 4, three groups of independently movable clamping pieces 404 are arranged on each base plate 402 through the screw rod, the guide rod 4041 on the clamping piece 404 is slidably connected with the movable block 4, the screw rod on the clamping piece 404 is rotated, the clamping piece 404 on the base plate 402 is moved to different positions, so that the clamping pieces are not on the same plane, and the tolerance between the base plate 402 and the aluminum plate when clamping aluminum plates of different thicknesses is compensated, three groups of aluminum plates of different thicknesses are inserted into the movable block 4, the two groups of base plates 402 are moved inward through the rotation of the double-head screw, and each aluminum plate is clamped through the clamping piece 404, so that the movable block 4 can simultaneously fix and clamp three groups of aluminum plates of different thicknesses, and when detecting, the bending detection of the three groups of aluminum plates of different thicknesses is completed through a single detection clamp.

[0037] As shown in the embodiment of the present application, Figure 5 As shown, the inside of the guide sleeve 5 is provided with a vertical rectangular through slot, the rear side of the guide sleeve 5 is symmetrically provided with four groups of rear rods 501, the two ends of the guide sleeve 5 are provided with fixed grooves 502, and the two sides of the rectangular through slot in the guide sleeve 5 are provided with contact pieces 503, and the inside arc-shaped convex structure of the contact piece 503 is clamped with the fixed groove 502; the guide sleeve 5 is arranged, the aluminum plate can be inserted through the guide sleeve 5, and stable support can be provided when the aluminum plate is bent for testing; the rear rod 501 is arranged, the guide sleeve 5 can be inserted into the movable frame 206 through the rear rod 501; the fixed groove 502 is arranged, the contact piece 503 can be fixed in the guide sleeve 5 by clamping the arc-shaped convex structure in the contact piece 503 with the fixed groove 502; the contact piece 503 is arranged, and the tolerance between the aluminum plate and the inner wall of the guide sleeve 5 can be compensated.

[0038] The specific usage and function of this embodiment are as follows: In the present invention, Figures 1 to 9 As shown, the movable frame 206 is inserted into the slot 202 of the fixed frame 2 on the front side of the body 1, the guide sleeve 5 is inserted into the movable frame 206, and the contact member 503 is inserted into the guide sleeve 5. The movable block 4 is set at the lower end of the main board 203 and the movable frame 206, and three sets of independent clamps 404 are set on the base plate 402 in the movable block 4. When performing the repeated bending test of the aluminum alloy plate, the operator first adjusts the clamping position of the movable block 4 according to the thickness of the aluminum plate to be tested, and then adjusts the clamping position of the movable block 4 according to the thickness of the aluminum plate to be tested. The screw on the clamping piece 404 is rotated to move the three sets of clamping pieces 404 to different planes on the base plate 402 to adapt to the tolerance of aluminum plates of different thicknesses. Then, the three sets of aluminum plates of different thicknesses are respectively inserted between the clamping pieces 404 of the upper and lower movable blocks 4, and the aluminum plates are passed through the guide sleeve 5. The double-headed screw is rotated to drive the two sets of base plates 402 to move toward each other until the clamping pieces 404 firmly clamp the aluminum plates. After the clamping is completed, the control switch 101 is turned on, and the drive shaft 102 starts to rotate driven by the motor. Since the driving shaft 102 and the matching groove 204 of the main board 203 are plugged in a cross-shaped structure, the main board 203 rotates synchronously therewith. At the same time, the auxiliary plates 2031 are externally connected to the two ends of the fixed frame 2, and the main board 203 and the auxiliary plates 2031 are connected by the linkage rod 3, so that the auxiliary plates 2031 on both sides follow the main board 203 and are synchronously linked. In this way, additional detection stations can be added according to detection requirements. The lower end movable block 4 slides along the guide groove 2062 of the movable frame 206 through the side rod 403. The counterweight hanger 401 passes through the notch groove 2071 of the bottom plate 207 to provide a stable counterweight. The drive shaft 102 rotates back and forth continuously, driving the main plate 203 and the sub-plate 2031 to repeatedly bend the aluminum plate. When the aluminum plate breaks after being bent a certain number of times, the staff can record the number of bends when each group of aluminum plates breaks. When all three groups of aluminum plates clamped in the movable block 4 are broken, the counterweight hanger 401 drives the movable block 4 at the lower end to slide down, thus completing the bending detection of all aluminum plates.

[0039] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0040] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0041] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A new type of high-quality aluminum alloy plate repeated bending test device, including: The top end face of said sliding panel also is provided with an interlocking hole, and the interlocking hole is fixed with the front end of said sliding panel and is engaged with the interlocking hole of said main frame and said sliding panel also is provided with an interlocking hole.

2. The novel high-quality aluminum alloy plate repeated bending test device according to claim 1, characterized in that: A driving shaft connected to a motor is rotatably mounted on the upper front end of the machine body. The motor for controlling the rotation of the driving shaft is controlled by a control switch. A limiting ring is threadedly mounted on the driving shaft.

3. The novel high-quality aluminum alloy plate repeated bending test device according to claim 1, characterized in that: The upper two sides of the fixing frame are symmetrically provided with penetrating mounting holes, and the front side of the fixing frame is provided with three groups of slots, a main board is provided in the middle position of the upper end of the fixing frame, a rectangular groove is provided at the upper end of the main board, and sub-boards are provided on both sides of the upper end of the fixing frame, a rectangular groove is provided inside the upper end of the sub-board, and an insertion rod is provided at the lower end of the rear side of the sub-board, and the insertion rod is plugged into the mounting hole; a cross-shaped matching groove is provided on the inner side of the lower end of the main board, and a connecting hole is provided in the middle position of the main board and the sub-board.

4. The novel high-quality aluminum alloy plate repeated bending test device according to claim 3, characterized in that: The upper end of the movable frame is plugged into the slot, and positioning holes are equidistantly provided above the movable frame, and guide grooves are provided on both sides of the movable frame. The lower end of the front side of the movable frame is plugged into the bottom plate, and a notch groove is provided inside the bottom plate that runs through the front side thereof.

5. The novel high-quality aluminum alloy plate repeated bending test device according to claim 1, characterized in that: Three groups of plug-in shafts are provided on the rear side of the linkage rod, a clamping groove is provided on the inner side of the upper end of the plug-in shaft, and an arc-shaped protrusion structure is provided inside the clamping groove.

6. The novel high-quality aluminum alloy plate repeated bending test device according to claim 5, characterized in that: A limiting rod is provided at the rear end of the linkage rod, which is plugged into and matched with the slots on each group of plug-in shafts. A limiting slot is provided at the side end of the limiting rod, which is plugged into and matched with the arc-shaped protrusion structure in the slot.

7. The novel high-quality aluminum alloy plate repeated bending test device according to claim 1, characterized in that: The movable block is a U-shaped structure, and a double-headed screw is rotatably installed inside the movable block; a counterweight hanger is provided at the bottom of the lower end movable block; two sets of base plates are slidably installed inside the movable block, and the base plates are threadedly connected to the double-headed screw in the movable block.

8. The novel high-quality aluminum alloy plate repeated bending test device according to claim 7, characterized in that: Side rods are provided on both sides of the movable block at the lower end, and three groups of clips are provided on each group of the base plates. A screw is rotatably installed on each group of the clips, and the screw is threadedly connected to the base plate. Guide rods are provided on both sides of the clips, and the guide rods are slidably matched with the movable block.

9. The novel high-quality aluminum alloy plate repeated bending test device according to claim 1, characterized in that: A vertical rectangular through slot is provided inside the guide sleeve, and four groups of rear rods are symmetrically provided on the rear side of the guide sleeve.

10. The novel high-quality aluminum alloy plate repeated bending test device according to claim 9, characterized in that: The two ends of the guide sleeve are provided with fixing grooves, and contact pieces are sleeved on both sides of the rectangular through groove inside the guide sleeve, and the inner arc-shaped protrusion structure of the contact piece is engaged with the fixing groove.

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