New energy automobile frame torsional strength detection device and detection method thereof

Abstract

The invention relates to the technical field of torsional strength detection, in particular to a new energy automobile frame torsional strength detection device and a detection method thereof.The new energy automobile frame torsional strength detection device comprises a detection frame, a plurality of evenly-arranged roller shafts are rotationally installed at the lower end of the interior of the detection frame, rotating cylinders are rotationally installed on the roller shafts, and a feeding port is formed in one end of the detection frame; a mounting plate is mounted at the end, away from the feeding port, of the detection frame, a transparent protection plate is arranged at the side end of the detection frame, and a feeding device is arranged on the feeding port. Through the guiding of the elastic guiding block and the position of the frame clamped by the upper fixing block and the lower fixing block, the frame can be positioned and restrained in the middle of the detection frame, and adjustment and adaptation are performed according to the structure of the new energy frame, so that the adaptability of detecting different frames is improved.

Description

Technical Field

[0001] The present application relates to the technical field of torsional strength detection, and in particular to a torsional strength detection device and a detection method for a new energy vehicle frame. Background Art

[0002] While pure electric vehicles continue to gain market share, most still rely on the same frames as traditional fuel-powered vehicles, necessitating frame optimization. Selecting the optimal battery layout improves the frame's mechanical properties, making it more suitable for the EV's system layout while also ensuring appropriate stiffness and strength to ensure safety, comfort, and fatigue life. Torsional strength is a crucial design parameter during frame optimization.

[0003] Testing the torsional strength of a vehicle frame to ensure performance requirements is crucial. Publication No. CN206248332U describes a device for measuring frame torsional stiffness. The device's base is fixed to the upper surface of a rigid test bench, which also has multiple restraining brackets fixed to the upper surface. The restraining brackets and the top of the device are connected to the test frame. The device includes a stress sensor, a displacement sensor, and a hydraulic jack. The hydraulic jack applies a Z-axis load to the free end of the test frame, measuring displacement and deformation to determine the torsional stiffness of the test frame. This prior art has the advantage of being simple, easy, and effective in accurately measuring frame torsional stiffness by simply deploying stress sensors and displacement sensors.

[0004] However, the above-mentioned prior art still has some defects in the torsional strength test of new energy vehicle frames: 1. In the above-mentioned prior art, multiple restraint brackets are fixed to the upper table of the test bench by bolts, and the frame to be tested is restrained on the top bracket of the restraint bracket by bolts. However, in actual testing, the fixed restraint bracket cannot be adjusted to the position according to the new frame, and loses the function of fixing the frame.

[0005] 2. The above-mentioned prior art applies a load in the Z-axis to the free end of the test frame using a hydraulic jack to obtain the displacement and deformation to obtain the torsional stiffness of the test frame. However, during the actual testing process, since the test frame is exposed to the outside world, if the frame is not properly fixed or is subjected to excessive load, it may fall off the restraining bracket, causing damage to objects or personnel, thereby posing a dangerous risk.

[0006] Based on this, and according to the above viewpoints, the existing technology for testing the torsional strength of new energy vehicle frames still has room for improvement. Summary of the Invention

[0007] In order to solve the above technical problems, the present application provides a new energy vehicle frame torsional strength detection device and detection method thereof, which adopts the following technical solutions: In the first aspect, the present invention provides a new energy vehicle frame torsional strength detection device, including a detection frame, a plurality of evenly arranged roller shafts are rotatably installed at the lower end of the detection frame, a rotating cylinder is rotatably installed on the roller shaft, a feed port is opened at one end of the detection frame, a mounting plate is installed on the end of the detection frame facing away from the feed port, a transparent protective plate is provided on the side end of the detection frame, and a loading device is provided on the feed port.

[0008] Preferably, the feeding device includes a feeding plate rotatably mounted at the lower end of the feed port, a feeding trough is provided on the feeding plate, a number of evenly arranged feeding rollers are rotatably mounted in the feeding trough, a retaining seat is provided on the side wall of one end of the detection frame facing the feed port, and a fixing buckle corresponding to the position of the retaining seat is provided at the side end of the detection frame.

[0009] Preferably, a lifting device is provided in the middle of the detection frame, and the lifting device includes a lifting frame slidably installed in the middle of the detection frame, a lifting arm is provided at the lower end of the lifting frame, and elastic guide blocks are installed on both sides of the lower end of the lifting frame.

[0010] Preferably, the lifting arm is symmetrically installed with a first telescopic rod on the side facing the mounting plate, and the first telescopic rod is jointly installed with a lower fixed block on the side facing away from the lifting frame, and a downward inclined lifting surface is provided on the end of the lower fixed block facing the lifting frame.

[0011] Preferably, a connecting plate is provided in the middle of one end of the detection frame facing the mounting plate, a second telescopic rod is symmetrically provided on the side end of the connecting plate, and an upper fixing block cooperating with the lower fixing block is provided on the end of the second telescopic rod facing away from the connecting plate.

[0012] Preferably, a testing device is provided at the upper end of the detection frame, and the testing device includes a driving motor installed at the upper end of the detection frame, a driving gear is installed on the output shaft of the driving motor, and a detection frame is installed on the end of the detection frame facing the feed port through the rotation of the main shaft, and a transmission gear ring meshing with the driving gear is provided at the end of the detection frame facing away from the feed port.

[0013] Preferably, the testing device further comprises a clamping assembly provided in the detection frame, wherein the clamping assembly comprises a connecting bar slidably connected to the lower end of the detection frame, and a clamping upper plate is provided at the upper end of the connecting bar.

[0014] Preferably, telescopic columns are symmetrically provided at one end of the clamping upper plate facing the feed port, clamping springs are sleeved on the outer sides of the telescopic columns, and a clamping lower plate is commonly provided at the lower ends of the telescopic columns.

[0015] Preferably, a reset assembly is further provided between the clamping upper plate and the clamping lower plate, and the reset assembly comprises a reset rod slidably connected inside the connecting strip, and a reset block is provided in the middle of the reset rod.

[0016] Preferably, a positioning hole is provided in the middle of the reset block, and the end of the reset block facing the telescopic column is connected to the connecting bar through a symmetrically arranged reset spring. A positioning block is provided at the upper end of the middle part of the clamping lower plate, and the positioning block and the end that contacts each other in the positioning hole are both provided with a sliding inclined surface.

[0017] In a second aspect, the present invention further provides a method for detecting the torsional strength of a new energy vehicle frame, the detection method comprising the following steps: S1: After placing the frame into the inspection frame, flip the loading plate upwards to close it, and lock the fixed buckle into the seat; S2: The lifting arm drives the frame to lift until the lower fixing block and the upper fixing block clamp one end of the frame; S3: The upper clamping plate and the lower clamping plate clamp the frame together, start the drive motor, and then apply a torsional force to the frame through the upper clamping plate and the lower clamping plate to detect the frame; S4: After the inspection is completed, the upper clamping plate and the lower clamping plate are released from the frame, the lifting arm lowers the frame, and the loading plate is rotated open to take the frame out of the feeding port.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The present invention can position and constrain the frame in the middle of the detection frame through the guidance of the elastic guide block and the clamping of the frame by the upper and lower fixed blocks, and can adjust and adapt to the structure of the new energy vehicle frame, thereby improving the adaptability of detecting different frames.

[0019] 2. When testing the torsional strength of a vehicle frame, the present invention can effectively prevent accidents caused by the vehicle frame causing injuries to people due to unreasonable design or improper operation when testing the torsional strength of the vehicle frame because the vehicle frame to be tested is in a closed space within the testing frame, and the feeding port is closed by the loading plate and protected by the transparent protective plate.

[0020] 3. The frame of the present invention pushes the reset block into place, and the locking block passes through the positioning hole. Under the action of the clamping spring, the upper clamping plate and the lower clamping plate jointly clamp the frame. When a torsional force is applied to the frame, the magnitude of the torsional force that causes the frame to deform is determined by the elongation of the telescopic column, that is, the elongation length of the clamping spring, so as to detect the torsional strength of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the feeding device of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the connecting device of the present invention.

[0024] Figure 4 It is a structural schematic diagram of the transmission element of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the lifting device of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the control device of the present invention.

[0027] Figure 7 It is a structural schematic diagram of the regulating device of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the testing device of the present invention.

[0029] Figure 9 It is a structural schematic diagram of the clamping assembly of the present invention.

[0030] Figure 10 It is a structural diagram of the reset component of the present invention.

[0031] Explanation of the reference numerals: 11. Detection frame; 12. Roller shaft; 13. Rotating drum; 14. Feeding port; 15. Mounting plate; 16. Transparent protective plate; 2. Feeding device; 21. Feeding plate; 22. Feeding trough; 23. Feeding roller; 24. Positioning seat; 25. Fixing buckle; 3. Connecting device; 31. Connecting slider; 32. Sliding plate; 33. Sliding bar; 34. Sliding hole; 4. Transmission element; 41. Transmission rack; 42. Synchronous pulley; 43. Transmission belt; 44. Transmission gear; 5. Lifting device; 51. Lifting frame; 52. Lifting arm; 53. Elastic guide block; 54. First telescopic rod; 55. Lower fixed block; 56. Lifting slope; 57. Connecting plate; 58. Second telescopic rod; 59. Upper fixed block; 6. Control device; 61. Rotating column; 62 , limit block; 63, first bevel gear; 64, mounting block; 65, rotating shaft; 66, rotating handle; 67, second bevel gear; 7, adjusting device; 71, adjusting shaft; 72, adjusting handle; 73, adjusting block; 74, adjusting connecting rod; 75, connecting shaft; 76, adjusting slider; 77, adjusting slide hole; 78, adjusting plate; 8, testing device; 81, driving motor; 82, driving gear; 83, main shaft; 84, detection frame; 85, transmission gear ring; 86, clamping assembly; 861, connecting strip; 862, clamping upper plate; 863, telescopic column; 864, clamping spring; 865, clamping lower plate; 866, ranging head; 9, reset assembly; 91, reset rod; 92, reset block; 93, positioning hole; 94, reset spring; 95, positioning block; 96, sliding inclined plane. DETAILED DESCRIPTION

[0032] The following is combined with Figures 1 to 10 This application is described in further detail.

[0033] The embodiments of the present application disclose a new energy vehicle frame torsional strength detection device and detection method, which can fix new energy vehicle frames of different sizes and ensure the torsional strength of the frame by detecting the deformation caused by the torsional force applied to the frame. It can also detect the torsional force applied to the frame when the frame is deformed.

[0034] Example 1: refer to Figure 1 A new energy vehicle frame torsional strength testing device includes a testing frame 11. A plurality of evenly arranged roller shafts 12 are rotatably mounted on the lower end of the testing frame 11. A rotating cylinder 13 is rotatably mounted on the roller shaft 12. A feeding port 14 is provided at one end of the testing frame 11. A mounting plate 15 is mounted on the end of the testing frame 11 away from the feeding port 14. A transparent protective plate 16 is provided on the side end of the testing frame 11 to form a closed environment inside the testing frame 11 to prevent the danger caused by the collapse of debris generated by the deformation of the frame during the torsional strength test of the frame. The condition of the frame can be observed through the transparent protective plate 16 during the test. The frame is fed into the testing frame 11 through the feeding port 14 . The setting of the rotating cylinder 13 facilitates the frame to be placed into the testing frame 11 , and then the torsional strength thereof is tested by the device inside the testing frame 11 .

[0035] refer to Figure 2 , is a structural schematic diagram of the feeding device 2 of the present invention. In order to facilitate the feeding of the frame into the detection frame 11, a feeding device 2 is provided on the feeding port 14. The feeding device 2 includes a feeding plate 21 rotatably mounted on the lower end of the feeding port 14. A feeding trough 22 is provided on the feeding plate 21. A plurality of evenly arranged feeding rollers 23 are rotatably mounted in the feeding trough 22. The setting of the feeding rollers 23 facilitates the frame to enter the detection frame 11 through the rotation of the feeding rollers 23 on the feeding trough 22. A blocking seat 24 is provided on the side wall of the end of the detection frame 11 facing the feeding port 14, and a fixing buckle 25 corresponding to the position of the blocking seat 24 is provided on the side end of the detection frame 11. The mutual cooperation between the blocking seat 24 and the fixing buckle 25 enables the feeding plate 21 to close the feeding port 14, thereby preventing the danger of flying debris generated by the deformation of the frame during the subsequent torsional strength testing.

[0036] After the vehicle frame is placed in the inspection frame 11 , the loading plate 21 is turned over, and the rotating fixed buckle 25 is locked to the locking seat 24 , and the loading plate 21 is rolled towards the feeding port 14 to form a closed area in the inspection frame 11 to ensure the safety of the inspection personnel.

[0037] refer to Figure 3, which is a structural schematic diagram of the connecting device 3 of the present invention. In order to move the frame to a suitable position for subsequent inspection when closing the loading plate 21, a connecting device 3 is provided between the loading plate 21 and the loading roller 23. The connecting device 3 includes a connecting slider 31 provided at one end of the detection frame 11 away from the fixed buckle 25, and a sliding plate 32 is slidably installed on the side wall of the detection frame 11. A sliding bar 33 is provided at one end of the sliding plate 32, and a sliding hole 34 is provided in the sliding bar 33, and the connecting slider 31 is slidably connected to the sliding hole 34. When the loading plate 21 is flipped upward to close, the connecting slider 31 slides upward in the sliding hole 34, driving the sliding plate 32 to slide toward the mounting plate 15. When the inspection is completed and the loading plate 21 is flipped downward to open, the connecting slider 31 slides downward in the sliding hole 34, driving the sliding plate 32 to slide in the direction away from the mounting plate 15.

[0038] refer to Figure 4 , which is a structural schematic diagram of the transmission element 4 of the present invention. When the sliding plate 32 slides, in order to drive the rotating drum 13 to rotate, so as to send the frame into or out of the detection frame 11, the connecting device 3 also includes a transmission element 4 arranged between the sliding bar 33 and the rotating drum 13. The transmission element 4 includes a transmission rack 41 connected to the lower end of the sliding plate 32 and the side end of the sliding bar 33. One end of the two roller shafts 12 is equipped with a synchronous pulley 42, and the two synchronous pulleys 42 are connected by a transmission belt 43. One roller shaft 12 is equipped with a transmission gear 44 that meshes with the transmission rack 41. When the sliding plate 32 slides, the transmission rack 41 drives the transmission gear 44 to rotate, and then rotates the rotating drum 13 through the roller shaft 12 to send the frame into the detection frame 11 or send it out when the detection is completed. That is, when the loading plate 21 is closed, the rotating drum 13 sends the frame into the detection frame 11, and when the loading plate 21 is opened, the rotating drum 13 sends the frame out of the detection frame 11.

[0039] refer to Figure 5, which is a structural diagram of the lifting device 5 of the present invention. Before the frame is subjected to torsion detection, in order to facilitate the torsion detection of the frame, the frame needs to be positioned and lifted. A lifting device 5 is provided in the middle of the detection frame 11. The lifting device 5 includes a lifting frame 51 slidably installed in the middle of the detection frame 11. A lifting arm 52 is provided at the lower end of the lifting frame 51. After the frame is sent into the detection frame 11, it is located below the middle of the frame. Elastic guide blocks 53 are installed on both sides of the lower end of the lifting frame 51 to prevent the frame from deviating from the center when it is sent into the frame. A first telescopic rod 54 is symmetrically installed on the side of the lifting arm 52 facing the mounting plate 15. The first telescopic rod A lower fixed block 55 is commonly installed on the side 54 facing away from the lifting frame 51, and a downward-inclined lifting slope 56 is provided on the end of the lower fixed block 55 facing the lifting frame 51, and a connecting plate 57 is provided in the middle of the end of the detection frame 11 facing the mounting plate 15, and a second telescopic rod 58 is symmetrically provided on the side end of the connecting plate 57, and an upper fixed block 59 cooperating with the lower fixed block 55 is commonly provided on the end of the second telescopic rod 58 facing away from the connecting plate 57. The extension and retraction of the first telescopic rod 54 and the second telescopic rod 58 can adjust the positions of the upper fixed block 59 and the lower fixed block 55 when clamping the frame according to the length of the frame, to ensure that the middle of the frame is located in the middle of the detection frame 11.

[0040] The rotating cylinder 13 rotates to send the frame in until one end of the frame passes through the lifting of the lifting inclined surface 56, and the upper end surface of the lower fixed block 55 is higher than the upper end surface of the lifting arm 52, ensuring that the middle part of the frame is in a suspended state during subsequent testing, preventing the lifting arm 52 from contacting the middle part of the frame during subsequent testing and affecting the torsional strength test data. Then, the lifting frame 51 is moved upward until the lower fixed block 55 and the upper fixed block 59 jointly clamp and fix one end of the frame.

[0041] refer to Figure 6 , which is a structural schematic diagram of the control device 6 of the present invention. In order to control the up and down movement of the lifting frame 51, a control device 6 is provided between the mounting plate 15 and the lifting frame 51. The control device 6 includes a rotating column 61 rotatably mounted on the upper end of the detection frame 11, and the rotating column 61 is connected to the lifting frame 51 by a threaded connection. A limit stopper 62 is provided on the upper end of the rotating column 61. The limit stopper 62 limits the upward movement of the lifting frame 51 to prevent the lifting frame 51 from separating from the rotating column 61. A first bevel gear 63 is installed at the lower end of the rotating column 61. A mounting block 64 is provided at the lower end of the upper plate of the detection frame 11. A rotating shaft 65 is installed on the mounting plate 15 and the mounting block 64 to rotate together. A rotating handle 66 is provided at one end of the rotating shaft 65 away from the first bevel gear 63. The rotation of the control handle 66 causes the rotating shaft 65 to rotate. A second bevel gear 67 meshing with the first bevel gear 63 is installed at the other end of the rotating shaft 65. The rotating shaft 65 rotates through the second bevel gear 67 and the first bevel gear 63 to rotate the rotating column 61.

[0042] By rotating the rotating handle 66 , the rotating shaft 65 rotates, and the first bevel gear 63 and the second bevel gear 67 are engaged with each other, driving the rotating column 61 to rotate, and the lifting frame 51 moves up and down in cooperation with the thread of the rotating column 61 .

[0043] refer to Figure 7 , is a structural schematic diagram of the adjusting device 7 of the present invention. In order to adjust the positions of the upper fixing block 59 and the lower fixing block 55 when clamping the frame according to the length of the frame, ensuring that the middle of the frame is located in the middle of the detection frame 11, the detection frame 11 is provided with an adjusting device 7 at one end facing the mounting plate 15. The adjusting device 7 has adjusting shafts 71 that are mounted on both side walls of the detection frame 11 facing the mounting plate 15 and are rotated together. An adjusting handle 72 is provided at one end of the adjusting shaft 71. Rotating the adjusting handle 72 rotates the adjusting shaft 71. Adjusting blocks 73 connected by threads are symmetrically provided at both ends of the adjusting shaft 71, and the spiral directions of the threads at both ends of the adjusting shaft 71 are opposite, so that the two adjusting blocks 73 move together in opposite directions or towards each other when the adjusting shaft 71 rotates. Both adjusting blocks 73 are hinged The cam 76 is connected to the locking cam 76 by the locking cam 76, and the locking cam 76 is connected to the locking cam 76 by the locking cam 76.

[0044] Before inspecting the vehicle frame, the position of the adjustment plate 78 in the adjustment slide hole 77 is determined according to the length of the vehicle frame, so that the lifting arm 52 is located in the middle of the vehicle frame. The adjustment handle 72 is rotated to rotate the adjustment shaft 71. With the cooperation of the adjustment shaft 71 and the adjustment block 73, the adjustment block 73 slides symmetrically, and then driven by the adjustment link 74, the adjustment plate 78 slides to the appropriate position in the adjustment slide hole 77. After the rotating cylinder 13 sends the vehicle frame in, the adjustment plate 78 rests against one end of the vehicle frame to ensure that the middle of the frame is located in the middle of the lifting arm 52, which is convenient for lifting.

[0045] Example 2: refer to Figure 8On the basis of Example 1, in order to detect the torsional strength of the frame after the positioning is completed, in the specific embodiment of this scheme, a testing device 8 is provided on the upper end of the detection frame 11. Specifically, the testing device 8 includes a driving motor 81 installed on the upper end of the detection frame 11, and a driving gear 82 is installed on the output shaft of the driving motor 81. The end of the detection frame 11 facing the feeding port 14 is rotatably installed with a detection frame 84 through the main shaft 83, and the end of the detection frame 84 facing away from the feeding port 14 is provided with a transmission ring gear 85 meshing with the driving gear 82. The output shaft of the driving motor 81 drives the driving gear 82 to rotate, and then drives the detection frame 84 to rotate through the transmission ring gear 85, so as to apply a torsional force to the frame clamped on the detection frame 84.

[0046] refer to Figure 9 And look back Figure 5 , which is a schematic diagram of the structure of the clamping assembly 86 of the present invention. In order to clamp and fix the end of the frame away from the upper fixing block 59 and the lower fixing block 55 and apply a torsional force to test the torsional strength of the frame, the testing device 8 also includes a clamping assembly 86 arranged in the detection frame 84. The clamping assembly 86 includes a connecting bar 861 slidably connected to the lower end of the detection frame 84, a clamping upper plate 862 is provided at the upper end of the connecting bar 861, and a telescopic column 8 is symmetrically provided on the end of the clamping upper plate 862 facing the feed port 14. 63. The change in the telescopic column 863 reflects the expansion and contraction of the clamping spring 864, which determines the magnitude of the torsional force applied to the frame. The clamping spring 864 is sleeved on the outer side of the telescopic column 863. The clamping spring 864 applies a force to clamp the frame to the clamping upper plate 862 and the clamping lower plate 865. The lower end of the telescopic column 863 is commonly provided with a clamping lower plate 865. The upper end of the lifting arm 52 is symmetrically provided with a distance measuring head 866 to detect the change in the distance from the lower end of the frame to the lifting arm 52 on both sides to determine whether the frame is deformed.

[0047] When testing the torsional strength of the frame, one end of the frame is clamped by the upper fixing block 59 and the lower fixing block 55, and the other end is clamped by the clamping upper plate 862 and the clamping lower plate 865 under the action of the clamping spring 864. At this time, the driving motor 81 applies a torsional force to the frame by clamping the upper plate 862 and the clamping lower plate 865. At this time, the magnitude of the torsional force at this time can be determined by the elongation of the telescopic column 863, that is, the elongation length of the clamping spring 864. At the same time, the distance measuring head 866 detects the change in the distance from the two sides of the lower end of the frame to the lifting arm 52 to determine whether the frame is deformed. The torsional strength of the frame is tested by comprehensively analyzing the torsional force applied to the frame and the deformation condition of the frame at this time.

[0048] refer to Figure 10, is a structural schematic diagram of the reset assembly 9 of the present invention. In order to control the clamping of the lower clamping plate 865 and the clamping upper plate 862 to clamp the vehicle frame, a reset assembly 9 is further provided between the clamping upper plate 862 and the clamping lower plate 865. The reset assembly 9 includes a reset rod 91 slidably connected to the internal of the connecting strip 861, a reset block 92 is provided in the middle of the reset rod 91, a positioning hole 93 is opened in the middle of the reset block 92, and the end of the reset block 92 facing the telescopic column 863 is connected to the connecting strip 861 through a symmetrically arranged reset spring 94, a blocking block 95 is provided at the upper end of the middle of the lower clamping plate 865, and a sliding inclined surface 96 is provided on the end of the blocking block 95 that contacts each other in the positioning hole 93.

[0049] Before testing the torsional strength, the frame pushes the reset block 92 in, and the locking block 95 passes through the positioning hole 93. Under the action of the clamping spring 864, the clamping upper plate 862 and the clamping lower plate 865 jointly clamp the frame. When the test is completed, the reset rod 91 is slid to make the locking block 95 move to the lower end of the reset block 92 through the sliding inclined surface 96 and be clamped by the reset block 92, thereby releasing the clamping of the frame.

[0050] In addition, the present invention also provides a method for detecting the torsional strength of a new energy vehicle frame, the detection method comprising the following steps: S1: Before performing the frame inspection, determine the position of the adjustment plate 78 in the adjustment slide hole 77 according to the length of the frame, so that the lifting arm 52 is located in the middle of the frame, rotate the adjustment handle 72 to rotate the adjustment shaft 71, and under the cooperation of the adjustment shaft 71 and the adjustment block 73, the adjustment block 73 slides symmetrically, and then driven by the adjustment link 74, the adjustment plate 78 slides in the adjustment slide hole 77 to a suitable position.

[0051] S2: The frame is then placed into the detection frame 11 by the rolling of the loading roller 23, and the loading plate 21 is flipped upward to close. At this time, the sliding plate 32 slides toward the mounting plate 15 under the cooperation of the connecting slider 31 and the sliding hole 34, and then the transmission rack 41 drives the transmission gear 44 to rotate, and under the transmission of the transmission belt 43, the roller shaft 12 installed by the transmission belt 43 rotates. The rotating roller shaft 12 moves the frame to the lifting inclined surface 56 through the rotating cylinder 13 and abuts the adjustment plate 78. At the same time, the setting of the elastic guide block 53 makes the frame located in the middle of the detection frame 11.

[0052] S3: Then, the rotating shaft 65 is rotated by rotating the rotating handle 66, and the rotating column 61 is driven to rotate under the engagement of the first bevel gear 63 and the second bevel gear 67. Since the lifting frame 51 is connected to the rotating column 61 through threads, the lifting frame 51 moves upward, and the lifting arm 52 drives the frame to lift until the lower fixing block 55 and the upper fixing block 59 clamp one end of the frame.

[0053] S4: Slide the connecting bar 861 to the other end of the frame, and the frame pushes the reset block 92 in. The positioning block 95 passes through the positioning hole 93. Under the action of the clamping spring 864, the clamping upper plate 862 and the clamping lower plate 865 clamp the frame together. At this time, the driving motor 81 is started, and the detection frame 84 is driven to rotate under the engagement of the driving gear 82 and the transmission ring gear 85, and then a torsional force is applied to the frame by clamping the upper plate 862 and the clamping lower plate 865. The distance measuring head 866 detects whether the frame is deformed under this torsional force.

[0054] S5: After the detection is completed, the reset rod 91 is slid, so that the blocking block 95 moves to the lower end of the reset block 92 through the sliding inclined surface 96 and is stuck by the reset block 92, breaking away from the clamping of the frame. The rotating handle 66 is rotated again, and the lifting arm 52 lowers the frame. The loading plate 21 is rotated to open, and the rotating cylinder 13 rotates to make the frame slide to the feed port 14 and be taken out.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new energy vehicle frame torsional strength testing device, comprising a testing frame (11), a plurality of uniformly arranged roller shafts (12) are rotatably mounted on the lower end of the testing frame (11), a rotating cylinder (13) is rotatably mounted on the roller shaft (12), a feed inlet (14) is provided at one end of the testing frame (11), a mounting plate (15) is mounted on the end of the testing frame (11) away from the feed inlet (14), and a transparent protective plate (16) is arranged on the side end of the testing frame (11), characterized in that: The feed inlet (14) is provided with a feeding device (2); The feeding device (2) comprises a feeding plate (21) rotatably mounted at the lower end of the feeding port (14), a feeding trough (22) being provided on the feeding plate (21), a plurality of evenly arranged feeding rollers (23) being rotatably mounted in the feeding trough (22), a retaining seat (24) being provided on a side wall at one end of the detection frame (11) facing the feeding port (14), and a fixing buckle (25) corresponding to the position of the retaining seat (24) being provided at the side end of the detection frame (11).

2. A new energy vehicle frame torsional strength detection device according to claim 1, characterized in that: A lifting device (5) is provided in the middle of the detection frame (11), and the lifting device (5) comprises a lifting frame (51) slidably mounted in the middle of the detection frame (11), a lifting arm (52) is provided at the lower end of the lifting frame (51), and elastic guide blocks (53) are installed on both sides of the lower end of the lifting frame (51).

3. A new energy vehicle frame torsional strength detection device according to claim 2, characterized in that: A first telescopic rod (54) is symmetrically mounted on the side of the lifting arm (52) facing the mounting plate (15), and a lower fixing block (55) is mounted on the side of the first telescopic rod (54) facing away from the lifting frame (51), and a downwardly inclined lifting slope (56) is provided on one end of the lower fixing block (55) facing the lifting frame (51).

4. A new energy vehicle frame torsional strength detection device according to claim 3, characterized in that: A connecting plate (57) is provided at the middle of one end of the detection frame (11) facing the mounting plate (15), a second telescopic rod (58) is symmetrically provided at the side end of the connecting plate (57), and an upper fixing block (59) cooperating with the lower fixing block (55) is provided at one end of the second telescopic rod (58) facing away from the connecting plate (57).

5. The new energy vehicle frame torsional strength detection device according to claim 1 is characterized in that: A testing device (8) is arranged at the upper end of the testing frame (11), and the testing device (8) comprises a driving motor (81) mounted at the upper end of the testing frame (11), and a driving gear (82) is mounted on the output shaft of the driving motor (81). A testing frame (84) is rotatably mounted on the end of the testing frame (11) facing the material inlet (14) via a main shaft (83), and a transmission gear ring (85) meshing with the driving gear (82) is arranged at the end of the testing frame (84) facing away from the material inlet (14).

6. A new energy vehicle frame torsional strength detection device according to claim 5, characterized in that: The testing device (8) further comprises a clamping assembly (86) arranged in the detection frame (84), wherein the clamping assembly (86) comprises a connecting bar (861) slidably connected to the lower end of the detection frame (84), and a clamping upper plate (862) is arranged at the upper end of the connecting bar (861).

7. A new energy vehicle frame torsional strength detection device according to claim 6, characterized in that: Telescopic columns (863) are symmetrically arranged at one end of the clamping upper plate (862) facing the feed inlet (14), clamping springs (864) are sleeved on the outsides of the telescopic columns (863), and a clamping lower plate (865) is commonly arranged at the lower ends of the telescopic columns (863).

8. A new energy vehicle frame torsional strength detection device according to claim 7, characterized in that: A reset assembly (9) is also provided between the clamping upper plate (862) and the clamping lower plate (865), and the reset assembly (9) comprises a reset rod (91) slidably connected inside the connecting strip (861), and a reset block (92) is provided in the middle of the reset rod (91).

9. A new energy vehicle frame torsional strength detection device according to claim 8, characterized in that: A positioning hole (93) is provided in the middle of the reset block (92); one end of the reset block (92) facing the telescopic column (863) is connected to the connecting strip (861) via a symmetrically arranged reset spring (94); a positioning block (95) is provided at the upper end of the middle of the clamping lower plate (865); and a sliding inclined surface (96) is provided at the end of the positioning block (95) and the end of the positioning hole (93) that contacts each other.

10. A method for detecting torsional strength of a new energy vehicle frame, comprising a new energy vehicle frame torsional strength detection device according to any one of claims 1 to 9, characterized in that: S1: After placing the vehicle frame into the inspection frame (11), flip the loading plate (21) upward to close it, and lock the fixing buckle (25) to the clamping seat (24); S2: The lifting arm (52) drives the frame to lift until the lower fixing block (55) and the upper fixing block (59) clamp and fix one end of the frame; S3: The upper clamping plate (862) and the lower clamping plate (865) jointly clamp the frame, and the drive motor (81) is started, and then a torsional force is applied to the frame through the upper clamping plate (862) and the lower clamping plate (865) to detect the frame; S4: After the detection is completed, the upper clamping plate (862) and the lower clamping plate (865) are released from the frame, the lifting arm (52) lowers the frame, and the loading plate (21) is rotated to open so that the frame can be taken out from the feeding port (14).

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