Firmness test system for new energy automobile part manufacturing

Abstract

The invention is suitable for the technical field of vehicle part testing, and provides a firmness testing system for new energy automobile part manufacturing, which comprises a protection box, a force storage part and an automobile anti-collision frame, a support frame is fixedly mounted at the top of the force storage part; a rotating part is rotationally arranged on the supporting frame; a pull rope penetrates through the peripheral side surface of the Z-shaped pipe in a sliding manner; an impact ball matched with the conical cover is fixed at one end of the pull rope; the end part of the first L-shaped plate is fixedly connected with a force unloading part; the force unloading part comprises a U-shaped plate; according to the system, an impact ball is launched by inflating and boosting the force storage part to carry out a simulation impact test on the automobile anti-collision frame, the launching angle of the impact ball is adjusted by controlling the rotation of the rotating part, and the launching position of the impact ball is adjusted by controlling the movement of the sliding sleeve. Therefore, impact scenes from different directions in the actual driving process are simulated, the diversity of firmness test data is increased, and the test accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle component testing technology, and more specifically, to a robustness testing system for manufacturing new energy vehicle parts. Background Technology

[0002] New energy vehicle crash barriers are an important component of the car body. When a car collides with other vehicles or obstacles at low speeds, they protect components such as fenders, radiators, engine hoods, and headlights. When colliding with pedestrians, they maximize the protection of pedestrians. Car bumpers typically consist of components such as crossbeams and energy-absorbing boxes, with the crossbeams and energy-absorbing boxes being the main energy-absorbing components. Their energy absorption performance directly affects the safety performance of the car.

[0003] my country has established corresponding testing standards for the robustness testing of new energy vehicle crash barriers. Based on these standards, various manufacturers and research institutions have designed corresponding testing mechanisms. However, existing testing mechanisms mainly test by applying pressure to the crash barrier, which cannot simulate the impact scenario of the crash barrier during actual driving. At the same time, most existing testing mechanisms apply pressure perpendicular to the crash barrier, which cannot simulate impact scenarios from different directions during actual driving. The uniformity of robustness test data reduces the accuracy of the test. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a robustness testing system for manufacturing new energy vehicle components. This system inflates and pressurizes the accumulator to launch an impact ball that simulates an impact on a vehicle's crash barrier. The system adjusts the launch angle of the impact ball by controlling the rotation of the rotating part and the launch position of the impact ball by controlling the movement of the sliding sleeve. This simulates impact scenarios from different directions during actual driving, increasing the diversity of robustness test data and thus improving the accuracy of the test.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A robustness testing system for manufacturing new energy vehicle components includes a protective box, a power storage unit fixedly installed on the bottom surface of the protective box, and a vehicle anti-collision frame fixedly installed between the inner walls of the protective box. A support frame is fixedly installed on the top of the power storage unit. A rotating part is rotatably arranged on the support frame. The rotating part includes a rotating seat. A sliding sleeve is slidably arranged on the rotating seat. A Z-shaped tube is fixed to the periphery of the sliding sleeve. One end of the Z-shaped tube is connected to the power storage unit via a flexible hose, and a conical cover is fixed to its other end. A pull rope is slidably arranged through the periphery of the Z-shaped tube. An impact ball adapted to the conical cover is fixed to one end of the pull rope. A first L-shaped plate is fixed to the periphery of the Z-shaped tube. A force-relieving part is fixedly connected to the end of the first L-shaped plate. The force-relieving part includes a U-shaped plate. Winding rods are symmetrically arranged between the inner walls of the U-shaped plates.

[0006] The invention is further configured such that: an observation port is provided on the side of the protective box; a placement platform is fixed on the side of the protective box; a threading port is provided on the side of the protective box above the placement platform; the pull rope passes through the threading port, and a connecting ball is fixed at its other end; a controller is fixedly installed on the side of the placement platform.

[0007] The invention is further configured such that: a plurality of mounting holes are provided on both sides of the inner wall of the protective box; a baffle is slidably arranged between the inner walls of the protective box; a mounting seat is fixed at both ends of the baffle; and the mounting seat is fixedly installed in the corresponding mounting hole by fastening bolts.

[0008] The invention is further configured such that: two sets of positioning plates are installed on the side of the baffle; the vehicle anti-collision frame includes a crossbeam; energy-absorbing boxes are symmetrically installed on the side of the crossbeam; a vehicle body connecting plate is fixed to the end of the energy-absorbing box; and the vehicle body connecting plate and the positioning plate are fixedly connected by fastening bolts.

[0009] The invention is further configured such that: the power storage unit includes two sets of parallel support seats; the support seats are fixedly installed on the bottom surface of the protective box by fastening bolts; a pressure tank is fixedly installed through the two support seats; a pressure sensor is installed through the periphery of the pressure tank; an air inlet pipe is connected to one end of the pressure tank, and an air outlet pipe is connected to its periphery; an electric butterfly valve is installed on both the air inlet pipe and the air outlet pipe; a clearance hole is opened on the surface of the rotating seat to rotatably cooperate with the air outlet pipe; the air outlet pipe is connected to the Z-shaped pipe by a flexible hose; the input end of the controller is electrically connected to the pressure sensor, and its output end is electrically connected to the electric butterfly valve.

[0010] The invention is further configured such that: a slot is provided on the top of the support base; the support frame includes two sets of T-shaped support plates arranged in parallel; the T-shaped support plates are fixedly installed on the top of the support base by fastening bolts; an insert plate that engages with the slot is fixed at the bottom of the T-shaped support plate; a fixing ring is fixed between the tops of the two T-shaped support plates; an annular groove is provided on the surface of the fixing ring; an annular rail is fixed on the inner circumferential side of the annular groove; a rotating ring that rotatably engages with the annular groove is fixed at the bottom of the rotating base; a rotating groove that rotatably engages with the annular rail is provided on the outer circumferential side of the rotating ring; a gear ring is fixed on the bottom surface of the rotating base; an extension plate is fixed on the side of the T-shaped support plate; a stepper motor that is electrically connected to the output end of the controller is fixedly installed on the surface of the extension plate; a first gear that meshes with the gear ring is fixed at the output end of the stepper motor.

[0011] The invention is further configured such that: ear seats are symmetrically fixed on the surface of the rotating seat; a guide rod that slides and engages with the sliding sleeve is fixed between the two ear seats; a lead screw that rotates and engages with the threaded sliding sleeve is rotatably disposed between the two ear seats; a servo motor that is electrically connected to the output end of the controller is fixed on the side of the ear seat; and the output end of the servo motor is fixedly connected to one end of the lead screw.

[0012] The invention is further configured such that: a guide tube is fixed to the end of the conical cover; an electromagnetic chuck electrically connected to the output end of the controller is fixed to the bottom of the guide tube; a sliding tube is slidably arranged on the periphery of the guide tube; an ear plate is fixed to the periphery of the sliding tube; an iron column is fixed to the side of the ear plate; a sliding rod is fixed to the side of the first L-shaped plate; the ear plate and the sliding rod are slidably engaged; and a return spring sleeved on the sliding rod is connected between the ear plate and the first L-shaped plate.

[0013] The invention is further configured as follows: a second L-shaped plate is fixedly connected to the first L-shaped plate by fastening bolts on the side of the U-shaped plate; rotating holes are provided on both sides of the U-shaped plate; lifting grooves are symmetrically provided on both sides of the rotating holes on the side of the U-shaped plate; sliding columns that slide in cooperation with the lifting grooves are fixed at both ends of the winding rod; the two sliding columns that fit together are rotatably disposed in the rotating holes; a radar speed detector is fixedly installed on the side of the U-shaped plate; a sliding plate is fixed at the end of the sliding column; a sliding hole is provided on the surface of the sliding plate; an electromagnetic coil is installed on the side of the sliding plate; the input end of the controller is electrically connected to the radar speed detector, and its output end is connected to the two electromagnetic coils. The device is electrically connected; an annular plate coaxially arranged with the rotating hole is rotatably mounted on the side of the U-shaped plate; a limit ring is fixed on the outer periphery of the annular plate; a positioning groove that rotatably engages with the annular plate is opened on the side of the U-shaped plate; a limit groove that rotatably engages with the limit ring is opened on the inner wall of the positioning groove; a toothed ring is fixed on the outer periphery of the annular plate; a drive motor electrically connected to the output end of the controller is mounted on the side of the U-shaped plate; a second gear that meshes with the toothed ring is fixed on the output end of the drive motor; a connecting rod that slidably engages with the sliding hole is fixed on the inner periphery of the annular plate; a compression spring sleeved on the connecting rod is connected between the inner periphery of the annular plate and the sliding plate.

[0014] The advantages of this invention are: 1. This invention uses an air-pressurized storage unit to launch an impact ball to simulate an impact test on a car crash barrier. By controlling the rotation of the rotating part to adjust the launch angle of the impact ball and by controlling the movement of the sliding sleeve to adjust the launch position of the impact ball, it simulates impact scenarios from different directions during actual driving, increasing the diversity of the robustness test data and thus improving the accuracy of the test.

[0015] 2. In this invention, when the impact ball is launched past the radar speed meter, the radar speed meter transmits the signal to the controller. The controller controls the two winding rods to move closer to each other. When the impact ball hits the car crash frame and bounces back, the impact ball drives the pull rope to rotate and wind around the two closely approaching winding rods to dissipate the force, preventing the impact ball from hitting the car crash frame a second time. This improves the accuracy of the test data and enhances the safety of the test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the robustness testing system for manufacturing new energy vehicle parts according to the present invention.

[0017] Figure 2 This is a schematic diagram of the energy storage unit of the present invention.

[0018] Figure 3 This is a schematic diagram of the protective box of the present invention.

[0019] Figure 4This is a schematic diagram of the support frame of the present invention.

[0020] Figure 5 This is a schematic diagram of the rotating part of the present invention.

[0021] Figure 6 For the present invention Figure 5 Enlarged view of region A.

[0022] Figure 7 This is a schematic diagram of the rotating part of the present invention from another angle.

[0023] Figure 8 This is a schematic diagram of the structure of the unloading part of the present invention with the two winding rods far apart from each other.

[0024] Figure 9 This is a schematic diagram of the structure of the unloading part of the present invention with the two winding rods in contact with each other.

[0025] Figure 10 This is a schematic diagram of the structure of the U-shaped plate of the present invention.

[0026] Figure 11 This is a schematic diagram of the winding rod of the present invention.

[0027] In the diagram: 1. Protective box; 2. Energy storage unit; 3. Support frame; 4. Rotating part; 5. Rotating seat; 6. Sliding sleeve; 7. Z-shaped tube; 8. Conical cover; 9. Pull rope; 10. Impact ball; 11. First L-shaped plate; 12. Force relief unit; 13. U-shaped plate; 14. Winding rod; 15. Observation port; 16. Placement platform; 17. Threading port; 18. Connecting ball; 19. Controller; 20. Mounting hole; 21. Baffle; 22. Mounting seat; 23. Positioning plate; 24. Crossbeam; 25. Energy absorption box; 26. Body connecting plate; 27. Support seat; 28. Pressure tank; 29. ​​Air pressure sensor; 30. Inlet pipe; 31. Outlet pipe; 32. Clearance hole; 33. Slot; 34. T-shaped support plate; 35. Insert plate; 36. Fixing ring; 37. 38. Annular groove; 39. Annular rail; 40. Rotary ring; 41. Rotary groove; 42. Gear ring; 43. Extension plate; 44. Stepper motor; 45. First gear; 46. Ear seat; 47. Guide rod; 48. Lead screw; 49. Servo motor; 50. Guide tube; 51. Electromagnetic chuck; 52. Sliding tube; 53. Ear plate; 54. Iron column; 55. Slide rod; 56. Return spring; 57. Second L-shaped plate; 58. Rotary hole; 59. Lifting groove; 60. Sliding column; 61. Radar speedometer; 62. Slide plate; 63. Sliding hole; 64. Electromagnetic coil; 65. Annular plate; 66. Limiting ring; 67. Positioning groove; 68. Gear ring; 69. Drive motor; 70. Second gear; 71. Connecting rod; 72. Compression spring; 73. Car anti-collision frame. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0031] Example 1, please refer to Figure 1-11 The present invention provides the following technical solutions: A robustness testing system for manufacturing new energy vehicle components specifically includes a protective box 1, a power storage unit 2 fixedly installed on the bottom surface of the protective box 1, and a car anti-collision frame 72 fixedly installed between the inner walls of the protective box 1; a support frame 3 is fixedly installed on the top of the power storage unit 2; a rotating part 4 is rotatably arranged on the support frame 3; the rotating part 4 includes a rotating seat 5; a sliding sleeve 6 is slidably arranged on the rotating seat 5; a Z-shaped tube 7 is fixed to the periphery of the sliding sleeve 6; one end of the Z-shaped tube 7 is connected to the power storage unit 2 through a flexible hose, and a conical cover 8 is fixed to its other end; a pull rope 9 is slidably arranged through the periphery of the Z-shaped tube 7; an impact ball 10 adapted to the conical cover 8 is fixed to one end of the pull rope 9; a first L-shaped plate 11 is fixed to the periphery of the Z-shaped tube 7; a force-relieving part 12 is fixedly connected to the end of the first L-shaped plate 11; the force-relieving part 12 includes a U-shaped plate 13; winding rods 14 are symmetrically arranged between the inner walls of the U-shaped plates 13, and the winding rods 14 are relatively slidably arranged between the inner walls of the U-shaped plates 13.

[0032] Working principle of this embodiment: By inflating and pressurizing the power storage unit 2, the impact ball 10 is launched to simulate an impact test on the car anti-collision frame 72. The launch angle of the impact ball 10 is adjusted by controlling the rotation of the rotating part 4, and the launch position of the impact ball 10 is adjusted by controlling the movement of the sliding sleeve 6. This simulates impact scenarios from different directions during actual driving, increases the diversity of the firmness test data, and thus improves the accuracy of the test.

[0033] When the impact ball 10 hits the car crash barrier 72 and bounces back, the impact ball 10 drives the pull rope 9 to rotate and wrap around the two close-to-each-other winding rods 14 to dissipate the force, preventing the impact ball 10 from hitting the car crash barrier 72 a second time. This improves the accuracy of the test data and enhances the safety of the test.

[0034] Example 2, please refer to Figure 1-11 This second embodiment is an improvement on the first embodiment as follows: Specifically, an observation port 15 is provided on the side of the protective box 1; a placement platform 16 is fixed on the side of the protective box 1; a wire threading port 17 is provided on the side of the protective box 1 above the placement platform 16; a pull rope 9 passes through the wire threading port 17, and a connecting ball 18 is fixed at its other end; a controller 19 is fixedly installed on the side of the placement platform 16.

[0035] The protective box 1 has several mounting holes 20 on both sides of its inner wall; a baffle 21 is slidably arranged between the inner walls of the protective box 1; a mounting seat 22 is fixed at both ends of the baffle 21; the mounting seat 22 is fixedly installed in the corresponding mounting hole 20 by fastening bolts.

[0036] By fixing the mounting base 22 to the corresponding position on the baffle 21 with the fastening bolts, the impact distance between the car anti-collision frame 72 and the impact ball 10 can be adjusted.

[0037] Two sets of positioning plates 23 are installed on the side of the baffle 21; the car anti-collision frame 72 includes a crossbeam 24; energy-absorbing boxes 25 are symmetrically installed on the side of the crossbeam 24; a body connecting plate 26 is fixed to the end of the energy-absorbing box 25; the body connecting plate 26 and the positioning plate 23 are fixedly connected by fastening bolts.

[0038] The vehicle body connecting plate 26 is fixedly installed on the positioning plate 23 by tightening bolts, thus completing the fixed connection between the vehicle anti-collision frame 72 and the baffle 21.

[0039] The power storage unit 2 includes two sets of parallel support seats 27; the support seats 27 are fixedly installed on the bottom surface of the protective box 1 by fastening bolts; a pressure tank 28 is fixed through between the two support seats 27; a pressure sensor 29 is installed through the periphery of the pressure tank 28; an air inlet pipe 30 is connected to one end of the pressure tank 28, and an air outlet pipe 31 is connected to its periphery; electric butterfly valves are installed on both the air inlet pipe 30 and the air outlet pipe 31; a clearance hole 32 is opened on the surface of the rotating seat 5 to rotatably cooperate with the air outlet pipe 31; the air outlet pipe 31 is connected to the Z-shaped pipe 7 by a flexible hose; the input end of the controller 19 is electrically connected to the pressure sensor 29, and its output end is electrically connected to the electric butterfly valve.

[0040] Both electric butterfly valves are DN160 or larger, and once opened, they can achieve large-flow exhaust and intake.

[0041] Working principle of this embodiment two: The pressure sensor 29 is used to monitor the internal pressure of the pressure tank 28. An external air pump supplies air into the air inlet pipe 30. When the pressure of the pressure tank 28 rises to the pressure required for the test, the electric butterfly valve on the air inlet pipe 30 is closed. When the test is required, the controller 19 controls the opening of the electric butterfly valve on the air outlet pipe 31. The high-pressure gas inside the pressure tank 28 is discharged in a large flow through the Z-shaped pipe 7, which pushes the impact ball 10 to move at high speed and launch it to hit the car crash frame 72. This replaces the traditional test method of applying pressure perpendicular to the car crash frame 72, reduces the test site occupation, and simulates the impact scenario of the car crash frame 72.

[0042] Example 3, please refer to Figure 1-11 This embodiment three is an improvement on the embodiment two. Specifically, the top of the support base 27 is provided with a slot 33; the support frame 3 includes two sets of T-shaped support plates 34 arranged in parallel; the T-shaped support plates 34 are fixedly installed on the top of the support base 27 by fastening bolts; the bottom of the T-shaped support plate 34 is fixed with an insert plate 35 that is inserted into the slot 33.

[0043] The support frame 3 and the support base 27 are fixedly installed by inserting the insert plate 35 into the slot 33 and fixing the T-shaped support plate 34 on the top of the support base 27 with the fastening bolts.

[0044] A fixing ring 36 is fixed between the tops of the two T-shaped support plates 34; an annular groove 37 is provided on the surface of the fixing ring 36; an annular rail 38 is fixed on the inner circumferential side of the annular groove 37; a rotating ring 39 is fixed at the bottom of the rotating seat 5 and rotates in cooperation with the annular groove 37; a rotating groove 40 is provided on the outer circumferential side of the rotating ring 39 and rotates in cooperation with the annular rail 38.

[0045] A gear ring 41 is fixed to the bottom surface of the rotating base 5; an extension plate 42 is fixed to the side of the T-shaped support plate 34; a stepper motor 43, which is electrically connected to the output end of the controller 19, is fixedly installed on the surface of the extension plate 42; a first gear 44, which meshes with the gear ring 41, is fixed to the output end of the stepper motor 43.

[0046] A symmetrical ear seat 45 is fixed on the surface of the rotating seat 5; a guide rod 46 that slides and engages with the sliding sleeve 6 is fixed between the two ear seats 45; a lead screw 47 that is threaded and rotates between the two ear seats 45 and engages with the sliding sleeve 6; a servo motor 48 that is electrically connected to the output end of the controller 19 is fixed on the side of the ear seat 45; the output end of the servo motor 48 is fixedly connected to one end of the lead screw 47.

[0047] Working principle of this embodiment three: By controlling the start of the stepper motor 43 to drive the first gear 44 to rotate, which in turn drives the gear ring 41 to rotate, which in turn drives the rotating part 4 to drive the sliding sleeve 6 to rotate synchronously, thereby adjusting the launch angle of the impact ball 10; by controlling the start of the servo motor 48 to drive the lead screw 47 to rotate, which in turn drives the sliding sleeve 6 to slide along the guide rod 46, thereby adjusting the launch position of the impact ball 10; in summary, through the coordinated use of the various components, the impact ball 10 can be used to test the impact of the crossbeam 24 at different positions and angles, increasing the diversity of the robustness test data of the car anti-collision frame 72, thereby improving the accuracy of the test.

[0048] Example 4, please refer to Figure 1-11 This fourth embodiment is an improvement on the third embodiment as follows: Specifically, a guide tube 49 is fixed at the end of the conical cover 8; an electromagnetic chuck 50 connected to the output end of the controller 19 is fixed at the bottom of the guide tube 49; a sliding tube 51 is slidably arranged on the periphery of the guide tube 49; an ear plate 52 is fixed on the periphery of the sliding tube 51; an iron column 53 is fixed on the side of the ear plate 52; a sliding rod 54 is fixed on the side of the first L-shaped plate 11; the ear plate 52 and the sliding rod 54 are slidably engaged; a return spring 55 sleeved on the sliding rod 54 is connected between the ear plate 52 and the first L-shaped plate 11.

[0049] A second L-shaped plate 56 is fixed to the side of the U-shaped plate 13 and is fixedly connected to the first L-shaped plate 11 by fastening bolts; both sides of the U-shaped plate 13 are provided with rotating holes 57; symmetrical lifting grooves 58 are provided on both sides of the rotating holes 57 on the side of the U-shaped plate 13; both ends of the winding rod 14 are fixed with sliding columns 59 that slide in cooperation with the lifting grooves 58; the two sliding columns 59 that fit together are rotatably arranged in the rotating holes 57; a radar speed measuring instrument 60 is fixedly installed on the side of the U-shaped plate 13.

[0050] The width of the lifting groove 58 is the same as the diameter of the sliding column 59, and the inner diameter of the rotating hole 57 is twice the diameter of the sliding column 59. Therefore, when the two sliding columns 59 that are pressed together are placed coaxially inside the rotating hole 57, the two sliding columns 59 can rotate synchronously inside the rotating hole 57.

[0051] The main principle of the radar speed measuring instrument 60 is the Doppler effect, which means that when a target approaches the radar antenna, the frequency of the reflected signal will be higher than the transmitter frequency; conversely, when the target moves away from the antenna, the frequency of the reflected signal will be lower than the transmitter frequency. The radar speed measuring instrument emits electromagnetic waves, which are reflected back when they hit an object. When the object being hit has a displacement movement in the direction of movement, there is a frequency difference between the electromagnetic waves emitted and reflected by the speed measuring instrument. The speed of the object is obtained by using this frequency difference, thus achieving the purpose of speed measurement. The radar speed measuring instrument 60 in this invention serves two purposes: first, it can test the instantaneous speed of the impact ball 10 to ensure the consistency of the impact intensity in each impact test; second, it is used for signal feedback, transmitting the signal to the controller 19, which controls the actions of related components. The radar speed measuring instrument 60 is installed on the side of the U-shaped plate 13, and the detection direction is aligned with the path of the impact ball 10.

[0052] A sliding plate 61 is fixed to the end of the sliding column 59; a sliding hole 62 is opened on the surface of the sliding plate 61; an electromagnetic coil 63 is installed on the side of the sliding plate 61; the input terminal of the controller 19 is electrically connected to the radar speed measuring instrument 60, and its output terminal is electrically connected to the two electromagnetic coils 63.

[0053] When two electromagnetic coils 63 are energized, they form the same magnetic poles, and a magnetic repulsion force is generated between them, causing them to move away from each other.

[0054] The side of the U-shaped plate 13 is rotatably provided with an annular plate 64 coaxially arranged with the rotating hole 57; a limit ring 65 is fixed on the outer periphery of the annular plate 64; a positioning groove 66 is opened on the side of the U-shaped plate 13 to rotatably cooperate with the annular plate 64; a limit groove is opened on the inner wall of the positioning groove 66 to rotatably cooperate with the limit ring 65.

[0055] A toothed ring 67 is fixed to the outer periphery of the annular plate 64; a drive motor 68 is installed on the side of the U-shaped plate 13 and is electrically connected to the output end of the controller 19; a second gear 69 that meshes with the toothed ring 67 is fixed to the output end of the drive motor 68; a connecting rod 70 that slides with the sliding hole 62 is fixed to the inner periphery of the annular plate 64; a compression spring 71 sleeved on the connecting rod 70 is connected between the inner periphery of the annular plate 64 and the slide plate 61.

[0056] Working principle of Example 4: In the initial state, the two sets of electromagnetic coils 63 are energized and move away from each other, the corresponding compression springs 71 are compressed, and the two winding rods 14 move away from each other, so that the impact ball 10 can smoothly pull the rope 9 through the two winding rods 14.

[0057] When the impact ball 10 is launched and passes the radar speed meter 60, the radar speed meter 60 transmits the signal to the controller 19. The controller 19 controls the two electromagnetic coils 63 to be de-energized and demagnetized. Under the elastic reset action of the corresponding compression spring 71, the two sliding columns 59 are driven to move closer to each other until the two adjacent sliding columns 59 are pressed together. At this time, the two sliding columns 59 that are pressed together are placed coaxially inside the rotating hole 57. The two sliding columns 59 can rotate synchronously inside the rotating hole 57 to realize the line release.

[0058] After the impact ball 10 completes the impact test on the crossbeam 24, it is bounced back. The impact ball 10 drives the pull rope 9 to rotate and wind around the two close-to-each-other winding rods 14, thereby unloading the force on the impact ball 10, improving the safety of the test, and preventing the impact ball 10 from causing a secondary impact on the crossbeam 24, thus improving the accuracy of the test data.

[0059] After the pull rope 9 is wound on the two winding rods 14, the start drive motor 68 is controlled to drive the second gear 69 to rotate, thereby driving the gear ring 67 to drive the annular plate 64 to rotate synchronously, so as to slowly release the pull rope 9. After the release is completed, the two electromagnetic coils 63 are controlled to be energized, and the two coils are magnetically repelled and move away from each other, corresponding to the compression spring 71, and the two winding rods 14 move away from each other. The electromagnetic chuck 50 is de-energized and demagnetized, releasing the magnetic attraction to the iron column 53. Under the elastic reset action of the reset spring 55, the ear plate 52 and the sliding tube 51 are driven to slide towards the unloading part 12, shortening the distance between them and the winding rods 14, which facilitates the recovery of the impact ball 10.

[0060] By pulling the connecting ball 18, the pull rope 9 is driven to pass out from the threading port 17, thereby driving the impact ball 10 to move. The impact ball 10 is pulled out from between the two winding rods 14, and then successively pulled to the sliding tube 51 and the guide tube 49, and finally enters the conical cover 8.

[0061] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0065] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A robustness testing system for manufacturing new energy vehicle components, comprising a protective box (1), a power storage unit (2) fixedly installed on the bottom surface of the protective box (1), and a vehicle anti-collision frame (72) fixedly installed between the inner walls of the protective box (1); characterized in that: A support frame (3) is fixedly installed on the top of the power storage unit (2); a rotating part (4) is rotatably provided on the support frame (3). The rotating part (4) includes a rotating seat (5); a sliding sleeve (6) is slidably disposed on the rotating seat (5); a Z-shaped tube (7) is fixed on the periphery of the sliding sleeve (6); one end of the Z-shaped tube (7) is connected to the power storage part (2) through a hose, and a conical cover (8) is fixed on the other end; a pull rope (9) is slidably disposed through the periphery of the Z-shaped tube (7); an impact ball (10) adapted to the conical cover (8) is fixed on one end of the pull rope (9). The Z-shaped tube (7) has a first L-shaped plate (11) fixed on its periphery; the first L-shaped plate (11) has a stress-relieving part (12) fixedly connected to its end; the stress-relieving part (12) includes a U-shaped plate (13); and winding rods (14) are symmetrically arranged between the inner walls of the U-shaped plate (13). The U-shaped plate (13) has rotating holes (57) on both sides; the U-shaped plate (13) has symmetrical lifting grooves (58) on both sides of the rotating holes (57); the winding rod (14) has sliding columns (59) fixed at both ends that slide in the lifting grooves (58); the two sliding columns (59) that fit together are rotatably arranged in the rotating holes (57); the annular plate (64) has a toothed ring (67) fixed on its outer circumferential side; the U-shaped plate (13) has a drive motor (68) that is electrically connected to the output end of the controller (19) installed on its side; the output end of the drive motor (68) has a second gear (69) that meshes with the toothed ring (67); the annular plate (64) has a connecting rod (70) that slides in the sliding hole (62) fixed on its inner circumferential side; the annular plate (64) has a compression spring (71) sleeved on the connecting rod (70) connected between its inner circumferential side and the sliding plate (61).

2. The robustness testing system for manufacturing new energy vehicle components according to claim 1, characterized in that: The protective box (1) has an observation port (15) on its side; a placement platform (16) is fixed on the side of the protective box (1); a wire threading port (17) is opened on the side of the protective box (1) above the placement platform (16); the pull rope (9) passes through the wire threading port (17), and a connecting ball (18) is fixed at its other end; a controller (19) is fixedly installed on the side of the placement platform (16).

3. The robustness testing system for manufacturing new energy vehicle components according to claim 2, characterized in that: The protective box (1) has several mounting holes (20) on both sides of its inner wall; a baffle (21) is slidably arranged between the inner walls of the protective box (1); a mounting seat (22) is fixed at both ends of the baffle (21); the mounting seat (22) is fixedly installed in the corresponding mounting hole (20) by fastening bolts.

4. The robustness testing system for manufacturing new energy vehicle components according to claim 3, characterized in that: Two sets of positioning plates (23) are installed on the side of the baffle (21); the car anti-collision frame (72) includes a crossbeam (24); energy-absorbing boxes (25) are symmetrically installed on the side of the crossbeam (24); a body connecting plate (26) is fixed at the end of the energy-absorbing box (25); the body connecting plate (26) and the positioning plate (23) are fixedly connected by fastening bolts.

5. The robustness testing system for manufacturing new energy vehicle components according to claim 4, characterized in that: The power storage unit (2) includes two sets of support seats (27) arranged in parallel; the support seats (27) are fixedly installed on the bottom surface of the protective box (1) by fastening bolts; a pressure tank (28) is fixed through between the two support seats (27); a pressure sensor (29) is installed through the periphery of the pressure tank (28). The pressure tank (28) is connected to an air inlet pipe (30) at one end and an air outlet pipe (31) is connected to its circumferential side. Both the air inlet pipe (30) and the air outlet pipe (31) are equipped with electric butterfly valves. The rotating seat (5) has a clearance hole (32) on its surface that rotates with the air outlet pipe (31). The air outlet pipe (31) is connected to the Z-shaped pipe (7) through a flexible hose. The input end of the controller (19) is electrically connected to the air pressure sensor (29), and its output end is electrically connected to the electric butterfly valve.

6. The robustness testing system for manufacturing new energy vehicle components according to claim 5, characterized in that: The support base (27) has a slot (33) on its top; the support frame (3) includes two sets of T-shaped support plates (34) arranged in parallel; the T-shaped support plates (34) are fixedly installed on the top of the support base (27) by fastening bolts; the bottom of the T-shaped support plates (34) is fixed with a plug plate (35) that is inserted into the slot (33); A fixing ring (36) is fixed between the tops of the two T-shaped support plates (34); an annular groove (37) is provided on the surface of the fixing ring (36); an annular rail (38) is fixed on the inner circumferential side of the annular groove (37); a rotating ring (39) is fixed at the bottom of the rotating seat (5) and rotates in cooperation with the annular groove (37); a rotating groove (40) is provided on the outer circumferential side of the rotating ring (39) and rotates in cooperation with the annular rail (38). The bottom surface of the rotating seat (5) is fixed with a gear ring (41); the side of the T-shaped support plate (34) is fixed with an extension plate (42); the surface of the extension plate (42) is fixedly mounted with a stepper motor (43) that is electrically connected to the output end of the controller (19); the output end of the stepper motor (43) is fixed with a first gear (44) that meshes with the gear ring (41).

7. The robustness testing system for manufacturing new energy vehicle components according to claim 6, characterized in that: The rotating seat (5) is symmetrically fixed with ear seats (45); a guide rod (46) that slides and engages with the sliding sleeve (6) is fixed between the two ear seats (45); a lead screw (47) that is threaded and rotates between the two ear seats (45) and engages with the sliding sleeve (6); a servo motor (48) that is electrically connected to the output end of the controller (19) is fixed on the side of the ear seat (45); the output end of the servo motor (48) is fixedly connected to one end of the lead screw (47).

8. The robustness testing system for manufacturing new energy vehicle components according to claim 7, characterized in that: The conical cover (8) is fixed with a guide tube (49) at its end; an electromagnetic chuck (50) connected to the output end of the controller (19) is fixed at the bottom of the guide tube (49); a sliding tube (51) is slidably arranged on the periphery of the guide tube (49); an ear plate (52) is fixed on the periphery of the sliding tube (51); an iron column (53) is fixed on the side of the ear plate (52); a sliding rod (54) is fixed on the side of the first L-shaped plate (11); the ear plate (52) and the sliding rod (54) are slidably engaged; a return spring (55) sleeved on the sliding rod (54) is connected between the ear plate (52) and the first L-shaped plate (11).

9. The robustness testing system for manufacturing new energy vehicle components according to claim 8, characterized in that: A second L-shaped plate (56) is fixedly connected to the first L-shaped plate (11) by fastening bolts on the side of the U-shaped plate (13); a radar speed meter (60) is fixedly installed on the side of the U-shaped plate (13). The sliding column (59) is fixed with a sliding plate (61); the sliding plate (61) has a sliding hole (62) on its surface; an electromagnetic coil (63) is installed on the side of the sliding plate (61); the input end of the controller (19) is electrically connected to the radar speed meter (60), and its output end is electrically connected to the two electromagnetic coils (63); The U-shaped plate (13) is rotatably provided with an annular plate (64) coaxially arranged with the rotating hole (57); a limiting ring (65) is fixed on the outer periphery of the annular plate (64); a positioning groove (66) is provided on the side of the U-shaped plate (13) to rotatably cooperate with the annular plate (64); a limiting groove is provided on the inner wall of the positioning groove (66) to rotatably cooperate with the limiting ring (65).

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