Bottom guard plate deformation testing device and method

Abstract

The present invention discloses a bottom guard plate deformation test device and method, the present invention relates to the field of bottom guard plate testing technology, comprising a box-type base, a concave seat is arranged between the upper parts of both sides of the box-type base, fixed seats are arranged at the upper two edges of the concave seat, a rotating shaft is rotatably arranged between the two fixed seats, a retractable servo motor for driving the rotating shaft to rotate is installed on one side of one of the fixed seats, and a reel is installed on the outside of the rotating shaft, a suspension rope is wound inside the reel, one end of the suspension rope slides through the top of the concave seat and is connected to a test head. The bottom guard plate deformation test device and method are specifically aimed at testing the deformation of the bottom guard plate. During the test, the test impact mode can be adjusted to test the deformation of the bottom guard plate under different impact modes, thereby improving the accuracy of the bottom guard plate deformation test.

Description

Technical Field

[0001] The invention relates to the technical field of bottom guard plate testing, and in particular to a bottom guard plate deformation testing device and method. Background Art

[0002] The bottom guard plate deformation test device is a technology used to simulate and detect the deformation degree of the bottom guard plate of the automobile battery pack when it is impacted. As an important component of the battery pack, the structural strength and impact resistance of the bottom guard plate are crucial to the safety of the battery pack. During the driving of electric vehicles, the bottom guard plate is easily affected by external impacts such as road obstacles and traffic accidents, causing the bottom guard plate to deform. If the bottom guard plate is severely deformed, it may affect the structural stability and sealing performance of the battery pack, and even cause safety accidents such as internal short circuit and fire in the battery pack. Therefore, it is very necessary to conduct a deformation test on the bottom guard plate.

[0003] However, there is currently no device specifically used to test the deformation of the bottom guard plate, and the test range is limited and the accuracy is not high. Therefore, it is necessary to develop a device specifically for testing the bottom guard plate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a bottom guard plate deformation testing device and method, which solves the problem that there is currently no device specifically used for testing the bottom guard plate deformation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bottom guard plate deformation testing device, comprising a box-type base, a concave seat is arranged between the upper parts of both sides of the box-type base, fixed seats are arranged at the two upper edges of the concave seat, a rotating shaft is rotatably arranged between the two fixed seats, a retractable servo motor for driving the rotating shaft to rotate is installed on one side of one of the fixed seats, and a reel is installed on the outside of the rotating shaft, a sling is wound in the reel, one end of the sling slides through the top of the concave seat and is connected to a test head, a limiting groove is arranged on one side of the concave seat, and a test adjustment mechanism is arranged on one side of the box-type base.

[0006] The test head includes a hollow impact block connected to one end of a suspension rope, the lower part of the impact block is open, and fixed shafts are arranged on both sides of the impact block near the upper part, and movable plates are arranged on the outside of the two fixed shafts in a transverse sliding sleeve, and impact plates are arranged horizontally on the lower sides of the two movable plates, and the two impact plates are located at the lower part of the impact block and merged. The test head also includes a driving part for opening and merging the two impact plates.

[0007] Preferably, the driving part includes a threaded rod rotatably arranged at the upper part of the inside of the impact block, a nut block is screwed on the outside of the threaded rod through a thread, and a knob for driving the threaded rod to rotate is rotatably arranged on one side of the outside of the impact block, a movable rod is hinged at the bottom of the nut block, and a movable block is longitudinally slidably arranged at the inside of the impact block at a position below the threaded rod, one end of the movable rod away from the nut block is hinged to the upper part of the movable block, and adjusting rods are hinged at the lower part of both sides of the movable block, and the ends of the two adjusting rods away from the movable block are respectively hinged to the upper parts of the two impact plates, and a plurality of impact piles are equidistantly arranged at the bottom of the movable block at a position between the two adjusting rods. After the two impact plates open the opening at the lower part of the impact block, the lower end of the impact pile extends to the bottom of the impact plate.

[0008] Preferably, strip grooves corresponding to the adjustment rods are provided at the lower parts of both sides of the impact block.

[0009] Preferably, the test adjustment mechanism includes an adjustment servo motor arranged on one side of the box-type base, the output shaft of the adjustment servo motor is connected to a screw rod, the outside of the screw rod is screwed with a movable seat through a thread, the end of the movable seat away from the screw rod slides through the limiting groove on the concave seat, and a guide plate is rotatably arranged on the upper part of the end of the movable seat away from the screw rod, and a rotating cylinder for driving the guide plate to rotate is installed at the bottom of the end of the movable seat away from the screw rod, and a through groove is arranged on the upper part of the end of the guide plate away from the movable seat, and the suspension rope slides through the through groove.

[0010] Preferably, an inner cavity is provided inside the guide plate at one side of the through groove, a movable shaft is inserted through the inner wall of the inner cavity for transverse sliding, one end of the movable shaft is located in the inner cavity and connected to an iron block, and a spring three is provided outside the inner cavity, two ends of the spring three are respectively connected to one side of the iron block and the inner wall of the inner cavity, and an electromagnet corresponding to the iron block is provided on the other side of the inner cavity.

[0011] Preferably, when the spring three is in a reset state, the end of the movable shaft away from the iron block is just located in the through slot and holds the lifting rope, the suction force of the electromagnet on the iron block is greater than the elastic force of the spring three, and when the electromagnet adsorbs the iron block, the end of the movable shaft away from the iron block just leaves the through slot.

[0012] Preferably, a lifting servo motor is installed in the middle of the bottom of the box-type base, the output shaft of the lifting servo motor is located inside the box-type base and is connected to a screw rod, the outside of the screw rod is screwed with a threaded sleeve through a thread, an open groove is provided on the upper part of the box-type base, and the upper end of the threaded sleeve is connected to a support plate corresponding to the open groove.

[0013] Preferably, T-shaped shafts are inserted and slidably inserted transversely on both sides of the box-type base, and the ends of the two T-shaped shafts away from the box-type base are connected to L-shaped rods, and the ends of the L-shaped rods away from the T-shaped shafts are located at the upper position of the box-type base and are connected to a clamping plate, and the distance between the two clamping plates is slightly smaller than the length of the bottom guard plate, so as to facilitate clamping and positioning the bottom guard plate, and the support plate is located between the two clamping plates, and the bottom of the clamping plate contacts the upper part of the box-type base, and the outside of the T-shaped shaft is also sleeved with a spring 1, and the two ends of the spring 1 are respectively connected to the inner side of the T-shaped shaft and the inner wall of the box-type base, The end of the T-shaped shaft away from the L-shaped rod is hinged with a connecting rod, and a limit shaft is vertically arranged on both sides of the screw rod on the inner lower side of the box-type base, and a moving block is longitudinally slidably sleeved on the outside of the limit shaft, and a spring 2 is also sleeved on the outside of the limit shaft, and the two ends of the spring 2 are respectively connected to the inner lower side of the box-type base and the bottom of the moving block. The end of the connecting rod away from the T-shaped shaft is hinged on one end of the moving block, and convex strips are arranged on both sides of the threaded sleeve, and guide rods are arranged at the lower parts of both ends of the convex strips, and the lower end of the guide rod longitudinally slides through the upper part of one end of the moving block away from the connecting rod.

[0014] The bottom guard plate deformation test method uses a bottom guard plate deformation test device to test the bottom guard plate, and the test method includes the following steps:

[0015] S1. Place the bottom guard plate on the box-type base, and use the elasticity of spring 2 and spring 1 to clamp and position the bottom guard plate with two clamping plates;

[0016] S2. After the bottom guard plate is positioned, the elasticity of spring 3 is used to position the suspension rope with the movable shaft, and then the test adjustment mechanism adjusts the height and impact position of the test head to achieve impact deformation test of the bottom guard plate at different heights and positions;

[0017] S3. Use the magnetism of the electromagnet to release the positioning of the suspension rope, and then under the gravity of the test head, hit the bottom guard plate to perform an impact deformation test on the bottom guard plate. By adjusting the test head, the plane impact and point impact on the bottom guard plate are achieved to determine the deformation of the bottom guard plate under different impact modes;

[0018] S4. Under the operation of the lifting servo motor, the two clamps are used to bend and deform the bottom guard plate to test the bending and deformation resistance of the bottom guard plate.

[0019] The present invention provides a bottom guard plate deformation testing device and method, which have the following beneficial effects compared with the prior art:

[0020] The bottom guard plate deformation testing device and method are specifically used to test the deformation of the bottom guard plate. During the test, the test impact mode can be adjusted to test the deformation of the bottom guard plate under different impact modes, thereby improving the accuracy of the bottom guard plate deformation test.

[0021] The bottom guard plate deformation testing device and method can perform impact tests on the bottom guard plate at different heights and positions by setting a test adjustment mechanism when performing impact tests on the bottom guard plate, so as to better understand the quality of the bottom guard plate. During the test, the bottom guard plate can also be tested for bending deformation, which is convenient and quick.

[0022] The bottom guard plate deformation testing device and method can change the state of the bottom guard plate when performing an impact deformation test on the bottom guard plate, thereby testing the deformation of the bottom guard plate under different states, making the test more extensive and facilitating the positioning of the bottom guard plate during the test to prevent the bottom guard plate from being offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the test head of the present invention;

[0025] Figure 3 is a schematic diagram of the internal structure of the test head of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the test adjustment mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of the structure at A in the middle;

[0028] Figure 6 It is a schematic diagram of the internal structure of the box-type base of the present invention.

[0029] In the figure: 1. Box base; 101. Lifting servo motor; 102. Screw; 103. Threaded sleeve; 104. Support plate; 105. T-shaped shaft; 106. L-shaped rod; 107. Clamp; 108. Spring 1; 109. Limiting shaft; 1010. Moving block; 1011. Spring 2; 1012. Connecting rod; 1013. Raised strip; 1014. Guide rod; 2. Concave seat; 3. Fixed seat; 4. Retractable servo motor; 5. Rotating shaft; 6. Reel; 7. Test head; 71. Impact Block; 72, fixed shaft; 73, moving plate; 74, impact plate; 75, threaded rod; 76, knob; 77, movable block; 78, adjusting rod; 79, impact pile; 710, nut block; 711, movable rod; 8, limit slot; 9, test adjustment mechanism; 91, adjustment servo motor; 92, screw rod; 93, moving seat; 94, rotating cylinder; 95, guide plate; 951, inner cavity; 952, moving shaft; 953, iron block; 954, spring three; 955, electromagnet; 96, through slot. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 6 , the present invention provides five technical solutions:

[0032] For example, see Figure 1 In the embodiment of the present invention, the bottom guard plate deformation testing device includes a box-type base 1, a concave seat 2 is arranged between the upper parts of both sides of the box-type base 1, fixed seats 3 are arranged at the two upper edges of the concave seat 2, a rotating shaft 5 is rotatably arranged between the two fixed seats 3, a retractable servo motor 4 for driving the rotating shaft 5 to rotate is installed on one side of one of the fixed seats 3, and a reel 6 is installed on the outside of the rotating shaft 5, a sling is wound in the reel 6, one end of the sling slides through the top of the concave seat 2 and is connected to a test head 7, a limiting groove 8 is arranged on one side of the concave seat 2, and a test adjustment mechanism 9 is arranged on one side of the box-type base 1.

[0033] See also Figure 2-Figure 3 In the embodiment of the present invention, the test head 7 includes a hollow impact block 71 connected to one end of the suspension rope, the lower part of the impact block 71 is open, and fixed shafts 72 are provided on both sides of the impact block 71 near the upper part, and the outer parts of the two fixed shafts 72 are provided with movable plates 73 for horizontal sliding, and the lower sides of the two movable plates 73 are horizontally provided with impact plates 74, and the two impact plates 74 are located at the lower part of the impact block 71 and merged together. The test head 7 also includes a driving part for opening and merging the two impact plates 74.

[0034] See also Figure 3 In the embodiment of the present invention, the driving part includes a threaded rod 75 rotatably arranged at the upper part of the impact block 71, a nut block 710 is screwed on the outside of the threaded rod 75 through a thread, and a knob 76 for driving the threaded rod 75 to rotate is rotatably arranged on one side of the outside of the impact block 71, a movable rod 711 is hinged at the bottom of the nut block 710, and a movable block 77 is longitudinally slidably arranged at the bottom of the impact block 71 at a position below the threaded rod 75, and one end of the movable rod 711 away from the nut block 710 is hinged to the upper part of the movable block 77, and the lower parts of both sides of the movable block 77 are hinged with adjustment rods 78, and the ends of the two adjustment rods 78 away from the movable block 77 are respectively hinged to the upper parts of the two impact plates 74, and the bottom of the movable block 77 is located between the two adjustment rods 78. A plurality of impact piles 79 are equidistantly arranged. After the two impact plates 74 open the opening at the lower part of the impact block 71, the lower end of the impact pile 79 extends to the lower part of the impact plate 74.

[0035] In the above scheme: when the impact plates 74 on the lower sides of the two movable plates 73 are combined, the bottom guard plate can be subjected to a plane impact deformation test. The threaded rod 75 is driven to rotate by turning the knob 76, and the threaded rod 75 drives the nut block 710 to move. The nut block 710 causes the movable rod 711 to drive the movable block 77 to move downward. The adjusting rod 78 at the lower part of the movable block 77 will open the impact plate 74. At the same time, the impact pile 79 at the lower part of the movable block 77 will extend out from under the impact plate 74. In this way, when the test head 7 impacts the bottom guard plate, the impact pile 79 will pierce the bottom guard plate to test the deformation of the bottom guard plate in this mode.

[0036] For further information, see Figure 3 In the embodiment of the present invention, strip grooves corresponding to the adjustment rod 78 are provided at the lower part of both sides of the impact block 71. When the adjustment rod 78 moves, it will pass through the strip groove to facilitate opening the impact plate 74.

[0037] The second embodiment is different from the first embodiment in that:

[0038] See also Figure 4 In the embodiment of the present invention, the test adjustment mechanism 9 includes an adjustment servo motor 91 arranged on one side of the box-type base 1, the output shaft of the adjustment servo motor 91 is connected to a screw rod 92, and a moving seat 93 is screwed on the outside of the screw rod 92 through a thread, and the end of the moving seat 93 away from the screw rod 92 slides through the limit groove 8 on the concave seat 2, and a guide plate 95 is rotatably arranged on the upper part of the end of the moving seat 93 away from the screw rod 92, and a rotating cylinder 94 for driving the guide plate 95 to rotate is installed at the bottom of the end of the moving seat 93 away from the screw rod 92, and a through groove 96 is arranged on the upper part of the end of the guide plate 95 away from the moving seat 93, and the suspension rope slides through the through groove 96.

[0039] In the above scheme: the servo motor 91 is adjusted to drive the screw rod 92 to rotate, the screw rod 92 drives the moving seat 93 to move, the moving seat 93 can drive the guide plate 95 to move, so as to adjust the height of the test head 7, and the rotary cylinder 94 drives the guide plate 95 to rotate, which can adjust the impact position of the test head 7, so as to realize the impact deformation test of the bottom guard plate at different heights and different positions.

[0040] Embodiment 3 is different from Embodiment 1 in that:

[0041] See also Figure 5In the embodiment of the present invention, an inner cavity 951 is provided inside the guide plate 95 at one side of the through groove 96, a movable shaft 952 is inserted through the inner wall of the inner cavity 951 for horizontal sliding, one end of the movable shaft 952 is located in the inner cavity 951 and is connected to an iron block 953, and the outer part of the movable shaft 952 is located in the inner cavity 951 and is sleeved with a spring three 954, the two ends of the spring three 954 are respectively connected to one side of the iron block 953 and the inner wall of the inner cavity 951, and an electromagnet 955 corresponding to the iron block 953 is provided on the other side of the inner cavity 951.

[0042] In the above scheme: the power supply of the electromagnet 955 is turned off, so that the spring 3 954 is in the reset state, so that the moving shaft 952 will clamp the suspension rope in the through groove 96 on the guide plate 95, which is convenient for adjusting the position and height of the test head 7

[0043] For further information, see Figure 5 In the embodiment of the present invention, when the spring three 954 is in the reset state, the end of the movable shaft 952 away from the iron block 953 is just located in the through groove 96 and holds the suspension rope. The suction force of the electromagnet 955 on the iron block 953 is greater than the elastic force of the spring three 954. When the electromagnet 955 adsorbs the iron block 953, the end of the movable shaft 952 away from the iron block 953 just leaves the through groove 96.

[0044] The fourth embodiment is different from the first embodiment in that:

[0045] See also Figure 6 In the embodiment of the present invention, a lifting servo motor 101 is installed in the middle of the bottom of the box-type base 1. The output shaft of the lifting servo motor 101 is located in the box-type base 1 and is connected with a screw 102. The outside of the screw 102 is screwed with a threaded sleeve 103 through a thread. An open groove is provided on the upper part of the box-type base 1, and the upper end of the threaded sleeve 103 is connected with a support plate 104 corresponding to the open groove.

[0046] In the above scheme: the lifting servo motor 101 drives the screw 102 to rotate, and the screw 102 drives the threaded sleeve 103 to move downward, so that the support plate 104 at the upper end of the threaded sleeve 103 leaves the open groove on the box base 1, and the convex strip 1013 does not contact the moving block 1010. At this time, the bottom of the bottom guard plate is suspended. The deformation of the bottom guard plate is tested after the bottom guard plate is impacted in the suspended state.

[0047] Embodiment 5 is different from Embodiment 1 in that:

[0048] See also Figure 6In the embodiment of the present invention, T-shaped shafts 105 are inserted and slidably inserted on both sides of the box-type base 1, and the ends of the two T-shaped shafts 105 away from the box-type base 1 are connected to L-shaped rods 106, and the ends of the L-shaped rods 106 away from the T-shaped shafts 105 are located at the upper position of the box-type base 1 and are connected to a clamping plate 107, and the distance between the two clamping plates 107 is slightly smaller than the length of the bottom guard plate, so as to facilitate the clamping and positioning of the bottom guard plate, and the support plate 104 is located between the two clamping plates 107, and the bottom of the clamping plate 107 is in contact with the upper part of the box-type base 1, and the outside of the T-shaped shaft 105 is also sleeved with a spring 108, and the two ends of the spring 108 are respectively connected to the inner side of the T-shaped shaft 105 and the inner wall of the box-type base 1, and the T-shaped shaft 105 is away from the L-shaped rod 106. One end of the box-type base 1 is hinged with a connecting rod 1012, and a limiting shaft 109 is vertically arranged at both sides of the screw 102 on the inner lower side of the box-type base 1. A moving block 1010 is longitudinally slidably sleeved on the outer side of the limiting shaft 109, and a spring 1011 is also sleeved on the outer side of the limiting shaft 109. The two ends of the spring 1011 are respectively connected to the inner lower side of the box-type base 1 and the bottom of the moving block 1010. One end of the connecting rod 1012 away from the T-shaped shaft 105 is hinged on one end of the moving block 1010, and convex strips 1013 are arranged on both sides of the threaded sleeve 103. Guide rods 1014 are arranged at the lower parts of both ends of the convex strips 1013. The lower ends of the guide rods 1014 slide longitudinally through the upper part of one end of the moving block 1010 away from the connecting rod 1012.

[0049] In the above scheme: make the lifting servo motor 101 work, let the threaded sleeve 103 continue to move downward, so that the convex strip 1013 presses down the moving block 1010, under the elasticity of the second spring 1011, as the convex strip 1013 is pressed downward, the moving block 1010 will move downward, and under the elasticity of the first spring 108, the moving block 1010 will make the connecting rod 1012 drive the T-shaped shaft 105 to move, and the T-shaped shaft 105 will pull the L-shaped rod 106 to move in the direction close to the box base 1, so that the two splints 107 will be relatively close to each other, thereby squeezing and bending the bottom guard plate to test the bending deformation resistance of the bottom guard plate.

[0050] The bottom guard plate deformation test method uses a bottom guard plate deformation test device to test the bottom guard plate, and the test method includes the following steps:

[0051] S1, placing the bottom guard plate on the box-type base 1, and clamping and positioning the bottom guard plate with two clamping plates 107 through the elasticity of the second spring 1011 and the first spring 108;

[0052] S2. After the bottom guard plate is positioned, the elasticity of the spring 3 954 is used to position the suspension rope with the movable shaft 952, and then the test adjustment mechanism 9 adjusts the height and impact position of the test head 7 to implement impact deformation tests on the bottom guard plate at different heights and positions;

[0053] S3, using the magnetism of the electromagnet 955, release the positioning work of the suspension rope, and then under the gravity of the test head 7, hit the bottom guard plate to perform an impact deformation test on the bottom guard plate, and by adjusting the test head 7, realize the plane impact and point impact on the bottom guard plate to determine the deformation of the bottom guard plate under different impact modes;

[0054] S4. Under the operation of the lifting servo motor 101, the two clamping plates 107 are used to bend and deform the bottom guard plate to test the bending and deformation resistance of the bottom guard plate.

[0055] Working principle: put the bottom guard plate on the box base 1, use the elasticity of spring 108 to clamp the bottom guard plate with two clamps 107, and perform positioning and fixing operation on the bottom guard plate. Then turn off the power supply of electromagnet 955 to reset spring 3 954, so that the moving shaft 952 will clamp the suspension rope in the through groove 96 on the guide plate 95, and then adjust the servo motor 91 to drive the screw rod 92 to rotate, and the screw rod 92 drives the moving seat 93 to move, and the moving seat 93 can drive the guide plate 95 to move, so as to adjust the height of the test head 7 , and the rotating cylinder 94 drives the guide plate 95 to rotate, which can adjust the impact position of the test head 7, so as to realize the impact deformation test of the bottom guard plate at different heights and different positions. After the position is adjusted, the retracting servo motor 4 drives the rope in the reel 6 to release the line. After the line is released, the power supply of the electromagnet 955 is turned on, and the electromagnet 955 will adsorb the iron block 953, so that the moving shaft 952 will release the positioning work of the rope, and under the gravity of the test head 7, the test head 7 will fall and impact the bottom guard plate, and the bottom guard plate will be subjected to the impact deformation test;

[0056] When the impact plates 74 on the lower sides of the two movable plates 73 are combined, the bottom guard plate can be subjected to a plane impact deformation test. The threaded rod 75 is driven to rotate by turning the knob 76, and the threaded rod 75 drives the nut block 710 to move. The nut block 710 causes the movable rod 711 to drive the movable block 77 to move downward. The adjusting rod 78 at the lower part of the movable block 77 will open the impact plate 74. At the same time, the impact pile 79 at the lower part of the movable block 77 will extend from the bottom of the impact plate 74. In this way, when the test head 7 impacts the bottom guard plate, the impact pile 79 will pierce the bottom guard plate to test the deformation of the bottom guard plate in this mode.

[0057] The lifting servo motor 101 drives the screw 102 to rotate, and the screw 102 drives the threaded sleeve 103 to move downward, so that the support plate 104 at the upper end of the threaded sleeve 103 leaves the open groove on the box-type base 1, and the convex strip 1013 does not contact the moving block 1010. At this time, the bottom of the bottom guard plate is suspended. The deformation of the bottom guard plate after the bottom guard plate is impacted in the suspended state is tested;

[0058] Then, the lifting servo motor 101 is operated to allow the threaded sleeve 103 to continue to move downward, so that the convex strip 1013 presses down the moving block 1010. Under the elasticity of the second spring 1011, as the convex strip 1013 is pressed downward, the moving block 1010 will move downward. Under the elasticity of the first spring 108, the moving block 1010 will cause the connecting rod 1012 to drive the T-shaped shaft 105 to move, and the T-shaped shaft 105 will pull the L-shaped rod 106 to move in the direction close to the box base 1, so that the two splints 107 will be relatively close to each other, thereby squeezing and bending the bottom guard plate to test the bottom guard plate's ability to resist bending and deformation.

[0059] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A bottom guard plate deformation testing device, comprising a box-type base (1), characterized in that: A concave seat (2) is arranged between the upper parts of both sides of the box-type base (1), fixed seats (3) are arranged at both edges of the upper part of the concave seat (2), a rotating shaft (5) is rotatably arranged between the two fixed seats (3), a retractable servo motor (4) for driving the rotating shaft (5) to rotate is installed on one side of one of the fixed seats (3), and a reel (6) is installed on the outside of the rotating shaft (5), a hanging rope is rolled up in the reel (6), one end of the hanging rope slides through the top of the concave seat (2) and is connected to a test head (7), a limiting groove (8) is arranged on one side of the concave seat (2), and a test adjustment mechanism (9) is arranged on one side of the box-type base (1); The test head (7) comprises a hollow impact block (71) connected to one end of a suspension rope, the lower part of the impact block (71) is open, and fixed shafts (72) are arranged at the upper part of both sides of the impact block (71), and movable plates (73) are arranged on the outside of the two fixed shafts (72) in a transverse sliding manner, and impact plates (74) are arranged horizontally on the lower sides of the two movable plates (73), and the two impact plates (74) are located at the lower part of the impact block (71) and are combined together. The test head (7) also comprises a driving unit for opening and combining the two impact plates (74); The test adjustment mechanism (9) comprises an adjustment servo motor (91) arranged on one side of the box-type base (1), the output shaft of the adjustment servo motor (91) is connected to a screw rod (92), the outer part of the screw rod (92) is screwed with a movable seat (93) through a thread, the end of the movable seat (93) away from the screw rod (92) slides through the limit groove (8) on the concave seat (2), and a guide plate (95) is rotatably arranged on the upper part of the end of the movable seat (93) away from the screw rod (92), and a rotary cylinder (94) for driving the guide plate (95) to rotate is installed at the bottom of the end of the movable seat (93) away from the screw rod (92), and a through groove (96) is arranged on the upper part of the end of the guide plate (95) away from the movable seat (93), and the suspension rope slides through the through groove (96); An inner cavity (951) is provided inside the guide plate (95) at one side of the through groove (96), a movable shaft (952) is slidably inserted through the inner wall of the inner cavity (951) in a transverse direction, one end of the movable shaft (952) is located inside the inner cavity (951) and is connected to an iron block (953), and the outer portion of the movable shaft (952) is located inside the inner cavity (951) and is sleeved with a spring three (954), the two ends of the spring three (954) are respectively connected to one side of the iron block (953) and the inner wall of the inner cavity (951), and an electromagnet (955) corresponding to the iron block (953) is provided on the other side of the inner cavity (951); When the spring three (954) is in a reset state, the end of the movable shaft (952) away from the iron block (953) is exactly located in the through slot (96) and holds the suspension rope against the iron block (953). The suction force of the electromagnet (955) on the iron block (953) is greater than the elastic force of the spring three (954). When the electromagnet (955) adsorbs the iron block (953), the end of the movable shaft (952) away from the iron block (953) leaves the through slot (96). A lifting servo motor (101) is installed in the middle of the bottom of the box-type base (1); the output shaft of the lifting servo motor (101) is located inside the box-type base (1) and is connected to a screw rod (102); a threaded sleeve (103) is screwed onto the outside of the screw rod (102) via a thread; an open groove is provided at the top of the box-type base (1); and a support plate (104) corresponding to the open groove is connected to the upper end of the threaded sleeve (103); Both sides of the box-type base (1) are laterally slidably interspersed with T-shaped shafts (105), and the ends of the two T-shaped shafts (105) away from the box-type base (1) are connected to L-shaped rods (106). The ends of the L-shaped rods (106) away from the T-shaped shafts (105) are located at the upper position of the box-type base (1) and are connected to clamps (107). The distance between the two clamps (107) is slightly smaller than the length of the bottom guard plate, so as to facilitate clamping and positioning the bottom guard plate. The support plate (104) is located between the two clamps (107), and the bottom of the clamps (107) contacts the upper part of the box-type base (1). The outside of the T-shaped shaft (105) is also sleeved with a spring (108), and the two ends of the spring (108) are respectively connected to the inner side of the T-shaped shaft (105) and the inner wall of the box-type base (1). The end of the T-shaped shaft (105) away from the L-shaped rod (106) is connected to the inner side of the T-shaped shaft (105) and the inner wall of the box-type base (1). A connecting rod (1012) is hingedly connected, and a limiting shaft (109) is vertically arranged at both sides of the screw rod (102) on the inner lower side of the box-type base (1), and a moving block (1010) is sleeved on the outer side of the limiting shaft (109) in a longitudinal sliding manner, and a second spring (1011) is sleeved on the outer side of the limiting shaft (109), and the two ends of the second spring (1011) are respectively connected to the inner lower side of the box-type base (1) and the bottom of the moving block (1010), and one end of the connecting rod (1012) away from the T-shaped shaft (105) is hinged on one end of the moving block (1010), and convex strips (1013) are arranged on both sides of the threaded sleeve (103), and guide rods (1014) are arranged at the lower parts of both ends of the convex strips (1013), and the lower end of the guide rod (1014) slides longitudinally through the upper part of the end of the moving block (1010) away from the connecting rod (1012).

2. The bottom guard plate deformation testing device according to claim 1, characterized in that: The driving part comprises a threaded rod (75) rotatably arranged at an upper position inside the impact block (71); a nut block (710) is screwed to the outside of the threaded rod (75) via a thread; a knob (76) for driving the threaded rod (75) to rotate is rotatably arranged on one side of the outside of the impact block (71); a movable rod (711) is hingedly connected to the bottom of the nut block (710); a movable block (77) is longitudinally slidably arranged inside the impact block (71) at a position below the threaded rod (75); the movable rod (711) is away from the nut block (71) 0) is hinged to the upper part of the movable block (77), and adjustment rods (78) are hingedly arranged at the lower parts of both sides of the movable block (77). The ends of the two adjustment rods (78) away from the movable block (77) are respectively hinged to the upper parts of the two impact plates (74). A plurality of impact piles (79) are equidistantly arranged at the bottom of the movable block (77) between the two adjustment rods (78). After the two impact plates (74) open the opening at the lower part of the impact block (71), the lower ends of the impact piles (79) extend to the lower part of the impact plates (74).

3. The bottom guard plate deformation testing device according to claim 2, characterized in that: Strip grooves corresponding to the adjustment rods (78) are provided at the lower sides of both sides of the impact block (71).

4. The bottom guard plate deformation test method is characterized in that: The bottom guard plate is tested using the bottom guard plate deformation testing device according to any one of claims 1 to 3, and the testing method comprises the following steps: S1, placing the bottom guard plate on the box-type base (1), and clamping and positioning the bottom guard plate with two clamping plates (107) through the elasticity of the second spring (1011) and the first spring (108); S2. After the bottom guard plate is positioned, the elasticity of the spring three (954) causes the movable shaft (952) to position the suspension rope, and then the test adjustment mechanism (9) adjusts the height and impact position of the test head (7) to implement impact deformation testing of the bottom guard plate at different heights and different positions; S3, using the magnetism of the electromagnet (955) to release the positioning work of the suspension rope, and then under the gravity of the test head (7), the bottom guard plate is hit to perform an impact deformation test on the bottom guard plate, and by adjusting the test head (7), a plane impact and a point impact on the bottom guard plate are achieved to determine the deformation of the bottom guard plate under different impact modes; S4. Under the operation of the lifting servo motor (101), the two clamping plates (107) are used to bend and deform the bottom guard plate to test the bending and deformation resistance of the bottom guard plate.

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