Frame strength detection device

Abstract

The invention relates to the technical field of vehicle frame detection, and discloses a vehicle frame strength detection device which comprises a base, a vehicle frame fixing mechanism and an impact pressure applying mechanism. The impact pressure applying mechanism comprises vertical rods arranged at the two ends of the base, a height-adjustable lifting seat is slidably connected to the vertical rods, a supporting column is arranged on the side, close to the center of the base, of the lifting seat and rotationally connected with an overturning frame, and an impact head for impacting a motorcycle frame is arranged on the side, close to the base, of the overturning frame; an extending frame is arranged on the side, away from the center of the base, of the lifting base, the middle of the extending frame is rotationally connected with an overturning frame, a winding assembly is arranged in the middle of the side, away from the lifting base, of the overturning frame, and a traction belt with the adjustable extending length is arranged outside the winding assembly. The overturning frame can be pulled by the traction belt to deflect left and right through the overturning frame, so that the impact head can stably extrude the motorcycle frame under the traction of the traction belt.

Description

Technical Field

[0001] The present invention relates to the technical field of frame detection, and specifically to a frame strength detection device. Background Art

[0002] The frame is a key component of a motorcycle, bearing the weight of the engine, suspension system, body shell, as well as the rider and passengers. During driving, it also has to withstand various complex external forces, such as impact forces generated by road surface bumps, inertial forces during acceleration and braking, and centrifugal forces during turning. If the frame strength is insufficient, it may deform or break during normal riding or in case of emergencies, resulting in the loss of vehicle controllability and causing serious traffic accidents, endangering the lives of riders and passengers.

[0003] Existing strength detection equipment uses an impact head to impact the frame to simulate the impact received during vehicle driving. However, during driving, after the vehicle completes the initial impact, if there is a wall or obstacle in the reverse direction of the vehicle, for example, when two vehicle brackets sandwich a motorcycle, the motorcycle will continue to be squeezed after receiving the initial impact. Therefore, during the strength detection process, it is also necessary to detect and process the anti-squeezing strength. Summary of the Invention

[0004] The present invention provides a frame strength detection device, which solves the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A frame strength detection device includes a base, a frame fixing mechanism, and an impact pressure applying mechanism; the frame fixing mechanism includes a guide groove provided in the middle of the base, and clamping sliders are slidably connected to both sides of the guide groove. Frame clamping assemblies are provided on the two clamping sliders, and the two frame clamping assemblies respectively fix the two ends of the motorcycle frame; the impact pressure applying mechanism includes vertical rods provided at both ends of the base, and a lift seat with adjustable height is slidably connected to the vertical rods. A support column is provided on the side of the lift seat close to the center of the base, and the support column is rotatably connected to a flip frame. An impact head for impacting the motorcycle frame is provided on the side of the flip frame close to the base. An extension frame is provided on the side of the lift seat away from the center of the base, and a flip frame is rotatably connected to the middle of the extension frame. A winding assembly is provided in the middle of the side of the flip frame away from the lift seat, and a traction belt with adjustable extension length is provided outside the winding assembly. One end of the traction belt away from the winding assembly is detachably connected to the end of the flip frame away from the base. A flip driving assembly for driving the flip frame to rotate is provided on the extension frame, and the rotation radius of the flip frame is larger than the rotation radius of the flip frame.

[0007] As a preferred technical solution of the present invention, the winding assembly includes a first fixing block fixedly connected to the middle of the flipping frame. The first fixing block is rotatably connected to a rotating shaft. The middle of the rotating shaft is fixedly connected to a winding wheel. A traction belt is wound around the outside of the winding wheel. A winding motor is arranged on the flipping frame. The output shaft of the winding motor is fixedly connected to the end of the rotating shaft. A locking device for restricting the rotation of the rotating shaft is arranged on the first fixing block.

[0008] As a preferred technical solution of the present invention, the flipping frame includes a fixing plate fixedly connected to the support column. A guiding slide rod is slidably connected to the middle of the fixing plate. One end of the guiding slide rod close to the base is fixedly connected to a bottom plate. The middle of the bottom plate is fixedly connected to an impact head. One end of the guiding slide rod away from the base is fixedly connected to a top plate. Both ends of a lifting lead screw are rotatably connected to the middle parts of the top plate and the bottom plate. A cross plate is threadedly connected to the middle of the lifting lead screw. The end of the cross plate is fixedly connected to the fixing plate. A second fixing block is arranged in the middle of the top plate. A limiting slide rod is slidably connected to the second fixing block. A collar is sleeved on the outside of the limiting slide rod. One end of the traction belt away from the winding assembly is connected to the collar. An electric extending device for driving the limiting slide rod to move horizontally is arranged on the side of the top plate.

[0009] As a preferred technical solution of the present invention, cross beams are arranged at both ends of the lifting seat. The end of the cross beam is fixedly connected to a cross bar. A guiding wheel cooperating with the traction belt is rotatably connected to the middle of the cross bar. The guiding wheel is higher than the lowest position of the winding assembly.

[0010] As a preferred technical solution of the present invention, the flipping driving assembly includes a main shaft rotatably connected to the extending frame. One end of the main shaft away from the center of the base is fixedly connected to the end of the flipping frame. A driven gear is arranged at one end of the main shaft close to the center of the base. A side plate is arranged on the side of the extending frame. A driving rack meshing with the driven gear is slidably connected to the side plate. A reversing air cylinder for driving the driving rack to move horizontally is arranged on the extending frame.

[0011] As a preferred technical solution of the present invention, a jacking lead screw threadedly connected to the lifting seat is rotatably connected to the side of the vertical rod. A driving shaft for driving the two jacking lead screws to rotate synchronously is rotatably connected to one side of the vertical rod close to the base.

[0012] As a preferred technical solution of the present invention, the vehicle frame clamping assembly includes a first fixing assembly for fixing the vehicle frame sub-beam of the motorcycle frame respectively arranged on two clamping sliding seats and a second fixing assembly for fixing the head pipe of the motorcycle frame. The first fixing assembly includes a telescopic sleeve arranged on the clamping sliding seat. A telescopic rod is slidably connected to the telescopic sleeve. The end of the telescopic rod is rotatably connected to a telescopic seat. A plate-shaped clamping head with a clamping flat structure is arranged on the telescopic seat. The second fixing assembly includes a diagonal bracing plate arranged on the clamping sliding seat. The end of the diagonal bracing plate is rotatably connected to a flipping seat. A clamping column is arranged on the surface of the flipping seat.

[0013] As a preferred technical solution of the present invention, tightening nut blocks are provided at both ends of the base. The tightening nut blocks are threadedly connected with tightening lead screws. One end of the tightening lead screw close to the center of the base is rotatably connected with a tightening block that cooperates with the clamping sliding seat.

[0014] The present invention has the following beneficial effects:

[0015] By the left - right flipping of the flipping frame, the flipping frame can pull the flipping frame to deflect left and right through the traction belt, so that the impact head can rotate clockwise under the action of gravity to clamp with the motorcycle frame, and at the same time, the impact head can also be stably pressed against the motorcycle frame under the traction of the traction belt, thereby simulating two stress modes during the driving of the motorcycle, making the final test result more restore the stress situation at the accident scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a vehicle frame strength detection device.

[0018] Figure 2 It is a front view of a vehicle frame strength detection device.

[0019] Figure 3 It is a schematic structural diagram of a vehicle frame fixing mechanism in a vehicle frame strength detection device.

[0020] Figure 4 It is for Figure 3 the right view of

[0021] Figure 5 It is a schematic structural diagram of an impact pressure - applying mechanism in a vehicle frame strength detection device.

[0022] Figure 6 It is a schematic structural diagram of a winding component in a vehicle frame strength detection device.

[0023] Figure 7 It is a schematic structural diagram of a flipping drive component in a vehicle frame strength detection device.

[0024] Figure 8 It is a schematic structural diagram of the cooperation between a driving rack and a driven gear in a vehicle frame strength detection device.

[0025] Figure 9It is a schematic structural diagram of a flipping frame in a frame strength detection device.

[0026] Figure 10 It is a schematic structural diagram of the cooperation between a collar and a limit slide bar in a frame strength detection device.

[0027] Figure 11 It is a schematic structural diagram of the cooperation between a lifting seat and a jacking screw rod in a frame strength detection device.

[0028] Figure 12 It is Figure 11 a partial enlarged schematic diagram of A in

[0029] In the figure: 1, base; 2, frame fixing mechanism; 3, impact pressure applying mechanism; 4, guide groove; 5, clamping slide seat; 6, telescopic sleeve; 7, telescopic rod; 8, telescopic seat; 9, plate-shaped clamping head; 10, first fixing component; 11, diagonal support plate; 12, flipping seat; 13, clamping column; 14, second fixing component; 15, motorcycle frame; 16, tightening screw rod; 17, tightening nut block; 18, tightening block; 19, vertical rod; 20, lifting seat; 21, support column; 22, flipping frame; 23, impact head; 24, cross beam; 25, cross bar; 26, guide wheel; 27, traction belt; 28, flipping frame; 29, winding component; 30, flipping drive component; 31, first fixing block; 32, rotating shaft; 33, winding wheel; 34, winding motor; 35, locking device; 36, extending frame; 37, support plate; 38, main shaft; 39, reversing cylinder; 40, driven gear; 41, driving rack; 42, side plate; 43, bottom plate; 44, guide slide bar; 45, fixing plate; 46, cross plate; 47, lifting screw rod; 48, top plate; 49, electric extending device; 50, limit slide bar; 51, second fixing block; 52, collar; 53, jacking screw rod; 54, second helical gear; 55, first helical gear; 56, second belt pulley; 57, synchronous belt; 58, first belt pulley; 59, jacking motor; 60, drive shaft. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In one embodiment, please refer to Figures 1 - 12 , a frame strength detection device, including a base 1, a frame fixing mechanism 2 and an impact pressure applying mechanism 3;

[0032] The frame fixing mechanism 2 includes a guide groove 4 provided in the middle of the base 1. Clamping sliders 5 are slidably connected to both sides of the guide groove 4. The base 1 is arranged in the front-rear direction, and the guide groove 4 is also arranged in the front-rear direction. The base 1 is located in the middle of the upper surface of the base 1. The base 1 includes two L-shaped guide bars arranged symmetrically left and right. The cross-section of the clamping slider 5 is a T-shaped structure. Therefore, after the clamping slider 5 slides into the interior of the guide groove 4 from front to back, the clamping slider 5 can only slide back and forth along the guide groove 4. A frame clamping assembly is provided above the clamping slider 5. The frame clamping assembly respectively fixes the front and rear sides of the motorcycle frame 15. This application only gives a solution for side impact and extrusion. The guide groove 4 and the base 1 can also be designed as a rotatable connection that can be locked, so that the motorcycle frame 15 can be rotated after being fixed, so as to perform impact or extrusion treatment on both the front and the tail of the motorcycle frame 15;

[0033] The impact pressing mechanism 3 is provided with vertical rods 19 at the front and rear ends of the upper surface of the base 1. The vertical rods 19 are located on the right side of the guide groove 4. A lifting seat 20 arranged in the left-right direction is slidably connected above the vertical rods 19. The front and rear two lifting seats 20 are lifted and lowered synchronously. And a support column 21 arranged in the front-rear direction is rotatably connected to the side of the lifting seat 20 close to the center of the base 1. The front and rear two support columns 21 are fixedly connected to the front and rear sides of the flipping frame 22. The flipping frame 22 is of a square frame structure and can rotate clockwise and counterclockwise around the center of the support column 21. An impact head 23 is arranged on the left side of the lower part of the flipping frame 22. Therefore, when the flipping frame 22 rotates clockwise, the impact head 23 will contact the motorcycle frame 15 from right to left, so as to achieve the effect of impact or extrusion. An extension frame 36 is arranged on the side of the lifting seat 20 away from the center of the base 1. The extension frame 36 is rotatably connected to the end of the flipping frame 28. The flipping frame 28 is a U-shaped structure with an opening facing the side of the lifting seat 20. The front and rear two ends of the flipping frame 28 are rotatably connected to the extension frame 36. A winding component 29 is arranged in the middle of the flipping frame 28. A traction belt 27 is arranged inside the winding component 29. The length of the traction belt 27 extending out can be controlled through the winding component 29. And one end of the traction belt 27 extending out is detachably connected to the upper end of the flipping frame 22. Therefore, the winding component 29 drives the flipping frame 22 to rotate through the traction belt 27. For example, when the flipping frame 28 is located on the left side of the vertical rod 19, at this time, the winding component 29 can drive the flipping frame 22 to rotate counterclockwise through the traction belt 27. When the flipping frame 28 is located on the right side of the vertical rod 19, at this time, the winding component 29 can drive the flipping frame 22 to rotate clockwise through the traction belt 27. And the end of the traction belt 27 is detachably connected to the upper end of the flipping frame 22. For example, when the flipping frame 22 rotates counterclockwise by a certain angle, the end of the traction belt 27 is disengaged from the flipping frame 22. At this time, the flipping frame 22 will quickly rotate clockwise under the action of the gravity of the impact head 23, so that the impact head 23 can impact the motorcycle frame 15 from right to left. And a flipping driving component 30 is arranged on the extension frame 36. The flipping driving component 30 can drive the flipping frame 28 to rotate clockwise and counterclockwise around the center of the extension frame 36. The rotation radius of the flipping frame 28 is larger than the rotation radius of the flipping frame 22. That is to say, the flipping frame 28 will not interfere with the flipping frame 22 when rotating.

[0034] In a case of this embodiment, the winding assembly 29 includes a first fixing block 31 disposed in the middle of the flipping frame 28. A through hole is provided in the middle of the flipping frame 28, and the traction belt 27 passes through and is connected to the through hole. First fixing blocks 31 are provided on both the front and rear sides of the through hole. The first fixing block 31 is rotatably connected to a rotating shaft 32 disposed in the front and rear directions. A winding wheel 33 is fixedly connected to the middle of the rotating shaft 32. The traction belt 27 is wound around the outside of the winding wheel 33, so as to release or retract the traction belt 27 through the winding wheel 33, adjust the length of the traction belt 27 extending out, and a winding motor 34 is provided on the front side of the flipping frame 28. The output shaft of the winding motor 34 is fixedly connected to the front end of the rotating shaft 32. The winding motor 34 drives the winding wheel 33 to rotate through the rotating shaft 32, and a locking device 35 is provided on the first fixing block 31 at the rear side. The locking device 35 can limit the rotation of the rotating shaft 32. For example, when a collision test needs to be performed, the winding wheel 33 retracts the traction belt 27. At this time, the flipping frame 22 rotates a certain angle, and the impact head 23 rotates to a high position. At this time, the rotating shaft 32 can be fixed through the locking device 35, and the winding motor 34 can stop. At this time, the free end of the traction belt 27 is disengaged from the flipping frame 22, and the impact head 23 starts to collide. The change in force generated at the moment when the traction belt 27 is disengaged from the flipping frame 22 is completely offset by the locking device 35, and it will not affect the normal operation of the winding motor 34, realizing the protection of the winding motor 34.

[0035] In a case of this embodiment, the flipping frame 22 includes a fixing plate 45 fixedly connected to the support column 21. The middle of the fixing plate 45 is slidably connected to the middle of the guiding slide bar 44. The lower end of the guiding slide bar 44 is fixedly connected to the bottom plate 43. The front and rear ends of the bottom plate 43 disposed in the front and rear directions are respectively fixedly connected to the lower ends of the front and rear two guiding slide bars 44. The middle of the left side of the bottom plate 43 is fixedly connected to the impact head 23. The upper end of the guiding slide bar 44 is fixedly connected to the top plate 48. The front and rear ends of the top plate 48 disposed in the front and rear directions are fixedly connected to the upper ends of the guiding slide bars 44, and the upper end of a lifting lead screw 47 is rotatably connected to the middle of the lower surface of the top plate 48. The lower end of the lifting lead screw 47 is rotatably connected to the middle of the bottom plate 43. The middle of a cross plate 46 is threadedly connected to the middle of the lifting lead screw 47. The front and rear ends of the cross plate 46 are fixedly connected to the fixing plate 45. Therefore, when the lifting lead screw 47 rotates, the distance between the impact head 23 and the support column 21 can be adjusted, that is, the rotation radius of the impact head 23 is adjusted, so as to adjust the speed of the impact head 23 during impact, that is, adjust the magnitude of the impulse. When the initial angle of the flipping frame 22 is fixed, the larger the rotation radius of the impact head 23, the faster the speed of the impact head 23, and the greater the impulse of the impact head 23.

[0036] In a case of this embodiment, a second fixing block 51 is provided in the middle of the top plate 48. The front and rear second fixing blocks 51 are symmetrically arranged with respect to the center of the top plate 48. A limiting slide rod 50 is slidably connected to the middle of the front second fixing block 51. And an electric extending device 49 is provided on the front side of the top plate 48. The electric extending device 49 can push the limiting slide rod 50 to move back and forth along the front second fixing block 51. A tubular collar 52 is sleeved on the rear side of the limiting slide rod 50. The collar 52 is located between the two second fixing blocks 51. The collar 52 is connected to the free end of the traction belt 27. Therefore, when the collar 52 is sleeved outside the limiting slide rod 50, the traction belt 27 is connected to the top plate 48. At this time, the traction belt 27 can pull the top plate 48 to rotate around the support column 21. When the limiting slide rod 50 moves forward, the collar 52 is disengaged from the limiting slide rod 50 under the action of the front second fixing block 51. At this time, the traction belt 27 is disengaged from the top plate 48, thus realizing the detachable connection between the flip frame 22 and the traction belt 27.

[0037] In a case of this embodiment, cross beams 24 are provided on both the left and right sides of the lifting seat 20. The end of the cross beam 24 is fixedly connected to the cross bar 25. The front and rear ends of the cross bar 25 arranged in the front and rear directions are fixedly connected to the ends of the front and rear two cross beams 24. A guide wheel 26 is provided in the middle of the cross bar 25. The guide wheel 26 can support the traction belt 27, and the guide wheel 26 is higher than the lowest position of the winding assembly 29. That is to say, when the flip frame 28 rotates to the left-down state or the right-down state, the guide wheel 26 is higher than the winding assembly 29. At this time, the winding assembly 29 can better pull the flip frame 22 to rotate through the traction belt 27, improving the rotation angle of the flip frame 22.

[0038] In a case of this embodiment, the flipping drive assembly 30 includes a main shaft 38 rotatably connected to the protruding frame 36. The protruding frame 36 is of a U-shaped structure, which can avoid the subsequent jacking screw rod 53. Moreover, a driven gear 40 can be placed at the central position of the protruding frame 36. The main shaft 38 is rotatably connected to the middle part of the protruding frame 36 in the front-back direction. One end of the main shaft 38 away from the center of the base 1 is fixedly connected to the end of the flipping frame 28, and one end of the main shaft 38 close to the center of the base 1 is fixedly connected to the driven gear 40. Side plates 42 are arranged on the left and right sides of the protruding frame 36. A driving rack 41 arranged in the left-right direction is slidably connected to the upper ends of the side plates 42. The lower part of the driving rack 41 is meshed with the upper part of the driven gear 40. Moreover, a reversing cylinder 39 is arranged above the protruding frame 36. The piston rod of the reversing cylinder 39 is fixedly connected to the side surface of the driving rack 41. The left and right movement of the driving rack 41 is controlled by the extension and retraction of the piston rod of the reversing cylinder 39, so that the driven gear 40 rotates forward and reverses, thereby realizing the clockwise rotation and counterclockwise rotation of the flipping frame 28. Moreover, a support plate 37 cooperating with the flipping frame 28 is arranged on the lower surface of the protruding frame 36. Bevels fitting with the flipping frame 28 are arranged on the left and right sides of the support plate 37. After the flipping frame 28 rotates counterclockwise, the side surface of the flipping frame 28 will fall on the left bevel of the support plate 37. When the flipping frame 28 rotates clockwise, the side surface of the flipping frame 28 will fall on the right bevel of the support plate 37. By arranging the support plate 37 to limit the maximum rotation angle of the flipping frame 28, the reversing cylinder 39 only needs to control the rotation direction of the flipping frame 28. The rotation angle of the flipping frame 28 is limited by the support plate 37, reducing the requirement for the control precision of the extension length of the piston rod of the reversing cylinder 39.

[0039] In one case of this embodiment, vertical jacking lead screws 53 are installed on the front side of the front vertical rod 19 and the rear side of the rear vertical rod 19. The jacking lead screws 53 are rotatably connected to the surface of the vertical rod 19, and the middle part of the jacking lead screw 53 is threadedly connected to the side surface of the lifting seat 20, so as to push the lifting seat 20 to move up and down through the jacking lead screw 53. And a driving shaft 60 arranged in the front-rear direction is rotatably connected to the lower part of the vertical rod 19. First bevel gears 55 are fixedly connected to the front and rear ends of the driving shaft 60. The first bevel gears 55 are meshed with second bevel gears 54. The second bevel gears 54 are fixedly connected to the lower ends of the jacking lead screws 53. And a jacking motor 59 is arranged on the right side of the upper surface of the base 1. A first pulley 58 is fixedly connected to the output shaft of the jacking motor 59. The first pulley 58 is connected to a second pulley 56 through a synchronous belt 57. The second pulley 56 is fixedly connected to the driving shaft 60. Therefore, the jacking motor 59 makes the driving shaft 60 rotate through belt transmission, and the driving shaft 60 makes the front and rear two jacking lead screws 53 rotate synchronously through gear transmission, so that the front and rear two lifting seats 20 are lifted and lowered synchronously, and the turning frame 22 is lifted and lowered. By adjusting the height of the turning frame 22, the impact head 23 can be adjusted to impact the motorcycle frame 15 at different heights.

[0040] In a case of this embodiment, the frame clamping assembly includes a first fixing assembly 10 and a second fixing assembly 14 which are respectively arranged on two clamping sliders 5 and used to fix the frame side beam of the motorcycle frame 15 and the head pipe of the motorcycle frame 15. The first fixing assembly 10 includes a telescopic sleeve 6 arranged on the upper surface of the front clamping slider 5. The telescopic sleeve 6 extends upward and is fixed on the left and right sides of the upper surface of the clamping slider 5. A telescopic rod 7 is slidably connected above the telescopic sleeve 6. The upper end of the telescopic rod 7 is fixedly connected with a telescopic seat 8 arranged in the left-right direction. A plate-shaped clamping head 9 is arranged on the telescopic seat 8. The frame side beam of the motorcycle frame 15 is used to fix the rear seat. Therefore, the side beam of the motorcycle frame 15 usually has a flat plate. The flat plate can be effectively fixed by the plate-shaped clamping head 9, so as to complete the fixing process of the frame side beam of the motorcycle frame 15. And through the relative sliding of the telescopic rod 7 and the telescopic rod 7, the height of the plate-shaped clamping head 9 can be controlled, so as to adapt to the heights of the frame side beams of different motorcycle frames 15. The second fixing assembly 14 includes an inclined support plate 11 arranged on the upper surface of the rear clamping slider 5. The upper end of the inclined support plate 11 is rotatably connected with a flipping seat 12. A rod-shaped clamping column 13 is arranged on the upper surface of the flipping seat 12. The head pipe of the motorcycle frame 15 is usually used to fix the front fork. Therefore, the head pipe of the motorcycle frame 15 is a tubular structure arranged in the up-down direction. By sleeving the head pipe outside the clamping column 13, the fixing process of the head pipe of the motorcycle frame 15 is completed. Therefore, corresponding first fixing assembly 10 and second fixing assembly 14 are respectively set according to the specific structure of the motorcycle frame 15 itself, so that the motorcycle frame 15 can complete effective clamping, and the clamping part can avoid the tubular part of the motorcycle frame 15, thus avoiding the problem of structural damage to the motorcycle frame 15 itself caused by clamping.

[0041] In a case of this embodiment, tightening nut blocks 17 are fixedly connected to the front and rear ends of the upper surface of the base 1. The tightening nut blocks 17 are threadedly connected with tightening lead screws 16 arranged in the front-rear direction. One end of the tightening lead screw 16 close to the center of the base 1 is rotatably connected with a tightening block 18. By rotating the tightening lead screw 16 and the tightening nut block 17, the front-rear position of the tightening block 18 is adjusted, that is, the front-rear position of the clamping slider 5 is adjusted, so as to realize the adjustment of the front-rear position of the motorcycle frame 15, that is, the front-rear position of the collision between the impact head 23 and the motorcycle frame 15. Cooperating with the height adjustment of the previous lifting seat 20, the impact head 23 can effectively collide and squeeze different positions on the side of the motorcycle frame 15. And the motorcycle frame 15 is usually arranged symmetrically left and right. Therefore, the effects of hitting the left side and the right side are the same.

[0042] During the implementation of this embodiment, the electric extension device 49 is activated, and the limit slide bar 50 moves forward. The limit slide bar 50 disengages from the collar 52. The reversing cylinder 39 is activated, and the flipping frame 28 rotates clockwise to the right. The lifting screw rod 47 is rotated to move the impact head 23 to a high position to prevent the impact head 23 from affecting the installation position during the subsequent installation of the motorcycle frame 15.

[0043] The motorcycle frame 15 is fixed. First, the head tube of the motorcycle frame 15 is sleeved outside the clamping column 13. The auxiliary beam of the motorcycle frame 15 is lifted to keep the motorcycle frame 15 in a horizontal state. The telescopic seat 8 is pulled up so that the two clamping plates of the plate-shaped clamping head 9 are respectively located on the upper and lower sides of the auxiliary beam of the motorcycle frame 15. The auxiliary beam of the motorcycle frame 15 is fixed by the plate-shaped clamping head 9. At this time, the first fixing component 10 and the second fixing component 14 complete the fixing process of the motorcycle frame 15. The front and rear tightening screw rods 16 are rotated so that the front and rear tightening blocks 18 are respectively attached to the sides of the front and rear clamping slide seats 5, and the front and rear positions of the motorcycle frame 15 are adjusted during the tightening process. After the adjustment is completed, the tightening screw rods 16 are tightened. At this time, the fixing process of the motorcycle frame 15 is completed.

[0044] During the collision test process, the reversing cylinder 39 is activated in the reverse direction, and the flipping frame 28 rotates counterclockwise. The flipping frame 28 lands on the left side of the support plate 37. The lifting screw rod 47 is rotated to adjust the rotation radius of the impact head 23. The lifting motor 59 is activated to adjust the height of the lifting seat 20, thereby adjusting the impact height of the impact head 23. After the adjustment is completed, the traction belt 27 is pulled out. The traction belt 27 passes above the left guide wheel 26. The collar 52 is placed between the two second fixing blocks 51 with the front and rear directions. The electric extension device 49 drives the limit slide bar 50 to move backward. The limit slide bar 50 passes through the collar 52 from front to back and abuts against the rear second fixing block 51. The winding motor 34 is activated, and the winding motor 34 drives the winding wheel 33 to wind the traction belt 27. The traction belt 27 pulls the flipping frame 22 to rotate counterclockwise. When the height of the impact head 23 meets the impact requirements, the rotating shaft 32 is fixed by the locking device 35. At this time, the electric extension device 49 is activated in the reverse direction, and the limit slide bar 50 moves forward and disengages from the collar 52. The traction belt 27 disengages from the flipping frame 22. At this time, the impact head 23 rotates clockwise around the center of the support column 21 under the action of gravity. After the impact head 23 rotates to the lower side, it collides with the right side of the motorcycle frame 15, thus completing a collision test.

[0045] Extrusion test treatment: The reversing cylinder 39 is used to rotate the turnover frame 28 clockwise to the right side, and the turnover frame 28 falls on the right side of the pallet 37. Repeat the above steps to pass the traction belt 27 above the right guide wheel 26, and fix the collar 52 to the limit slide bar 50. At this time, under the action of its own gravity, the impact head 23 has rotated clockwise and contacted the right side surface of the motorcycle frame 15. Through the design of the position of the motorcycle frame 15 and the distance that the impact head 23 extends to the left, when only under the action of gravity, if the turnover frame 22 rotates to the vertical state, the impact head 23 can already completely adhere to the motorcycle frame 15 and extrude the motorcycle frame 15. At this time, start the winding motor 34 again, the traction belt 27 is retracted, and the traction belt 27 pulls the turnover frame 22 to rotate clockwise. However, the motorcycle frame 15 below blocks the clockwise rotation of the impact head 23, so that the pressure between the impact head 23 and the motorcycle frame 15 gradually increases. Thus, the extrusion treatment of the motorcycle frame 15 by the impact head 23 can be carried out. The pressure between the impact head 23 and the motorcycle frame 15 can be controlled by the output power of the winding motor 34, or a pressure sensor can be set between the impact head 23 and the bottom plate 43 to directly and accurately control the pressure of the impact head 23 on the motorcycle frame 15.

[0046] The present invention is applicable to a vehicle frame strength detection device. Through the left and right turning of the turnover frame 28, the turnover frame 28 can pull the turnover frame 22 to deflect left and right through the traction belt 27, so that the impact head 23 can rotate clockwise under the action of gravity and clamp with the motorcycle frame 15. At the same time, the impact head 23 can also stably extrude the motorcycle frame 15 under the traction of the traction belt 27, thus simulating two stress modes during the driving of the motorcycle and making the final detection result more restore the stress situation at the accident scene.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A frame strength detection device, characterized in that: It includes a base, a frame fixing mechanism and an impact pressure applying mechanism; The frame fixing mechanism comprises a guide groove arranged in the middle of the base, both sides of the guide groove are slidably connected with clamping slides, the two clamping slides are provided with frame clamping assemblies, and the two frame clamping assemblies respectively fix the two ends of the motorcycle frame; The impact pressure mechanism comprises vertical rods arranged at both ends of the base, the vertical rods are slidably connected with a lifting seat with adjustable height, a support column is arranged on the side of the lifting seat close to the center of the base, the support column is rotatably connected to the flip frame, and an impact head for impacting the motorcycle frame is arranged on the side of the flip frame close to the base, an extension frame is arranged on the side of the lifting seat away from the center of the base, the middle part of the extension frame is rotatably connected with the flip frame, a winding assembly is arranged on the middle part of the side of the flip frame away from the lifting seat, a traction belt with adjustable extension length is arranged on the outside of the winding assembly, the end of the traction belt away from the winding assembly is detachably connected to the end of the flip frame away from the base, a flip driving assembly for driving the flip frame to rotate is arranged on the extension frame, and the rotation radius of the flip frame is greater than the rotation radius of the flip frame.

2. A vehicle frame strength detection device according to claim 1, characterized in that: The winding assembly includes a first fixed block fixedly connected to the middle part of the turning frame, the first fixed block is rotatably connected to the rotating shaft, the middle part of the rotating shaft is fixedly connected to the winding wheel, the outer part of the winding wheel is wound with a traction belt, a winding motor is arranged on the turning frame, the output shaft of the winding motor is fixedly connected to the end part of the rotating shaft, and a locking device for limiting the rotation of the rotating shaft is arranged on the first fixed block.

3. A vehicle frame strength detection device according to claim 1, characterized in that: The flip frame includes a fixed plate fixedly connected to the support column, a guide slide rod slidably connected to the middle of the fixed plate, an end of the guide slide rod close to the base is fixedly connected to the bottom plate, the middle of the bottom plate is fixedly connected to the impact head, an end of the guide slide rod away from the base is fixedly connected to the top plate, the middle of the top plate and the bottom plate are rotatably connected to the two ends of the lifting screw rod, the middle of the lifting screw rod is threadedly connected to the cross plate, and the end of the cross plate is fixedly connected to the fixed plate.

4. A vehicle frame strength detection device according to claim 3, characterized in that: A second fixed block is provided in the middle of the top plate, and the second fixed block is slidably connected to a limiting slide rod. A ring is provided on the outer sleeve of the limiting slide rod, and the ring is connected to an end of the traction belt away from the winding assembly. An electric extension device for driving the limiting slide rod to move horizontally is provided on the side of the top plate.

5. A vehicle frame strength detection device according to claim 1, characterized in that: Both ends of the lifting seat are provided with cross beams, the ends of the cross beams are fixedly connected with cross bars, the middle of the cross bar is rotatably connected with a guide wheel matched with the traction belt, and the guide wheel is higher than the lowest position of the winding assembly.

6. A vehicle frame strength detection device according to claim 1, characterized in that: The flip driving assembly includes a main shaft rotatably connected to the extension frame, an end of the main shaft away from the center of the base is fixedly connected to the end of the flip frame, an end of the main shaft close to the center of the base is provided with a driven gear, a side plate is provided on the side of the extension frame, the side plate is slidably connected to a driving rack meshing with the driven gear, and a reversing cylinder for lateral movement of the driving rack is provided on the extension frame.

7. A vehicle frame strength detection device according to claim 1, characterized in that: The side surface of the vertical rod is rotatably connected with a lifting screw rod which is threadedly connected with the lifting seat, and the side of the vertical rod close to the base is rotatably connected with a driving shaft which drives the two lifting screw rods to rotate synchronously.

8. A vehicle frame strength detection device according to claim 1, characterized in that: The frame clamping assembly comprises a first fixing assembly respectively arranged on two clamping slides for fixing the frame sub-beam of the motorcycle frame and a second fixing assembly for fixing the head pipe of the motorcycle frame.

9. A vehicle frame strength detection device according to claim 8, characterized in that: The first fixing component includes a telescopic sleeve arranged on the clamping slide, the telescopic sleeve is slidably connected to the telescopic rod, the end of the telescopic rod is rotatably connected to the telescopic seat, and the telescopic seat is provided with a plate-shaped clamping head for clamping the flat plate structure; the second fixing component includes a diagonal support plate arranged on the clamping slide, the end of the diagonal support plate is rotatably connected to the flip seat, and the surface of the flip seat is provided with a clamping column.

10. A vehicle frame strength detection device according to claim 1, characterized in that: Both ends of the base are provided with tightening nut blocks, the tightening nut blocks are threadedly connected with a tightening screw rod, and one end of the tightening screw rod close to the center of the base is rotatably connected with a tightening block matched with the clamping slide seat.

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