Oil tank impact testing machine

Abstract

The invention discloses an oil tank impact testing machine which comprises a machine frame, a fixing device used for fixing an oil tank, an impact device used for impacting the oil tank and an identification device used for rubbing the impact position of the oil tank. The marking device comprises a support arranged on the rack in a lifting mode, a marking frame arranged on the support in a sliding mode in the horizontal direction, a forming part movably arranged on the marking frame and a traction mechanism used for pulling the forming part. The extrusion mechanism is used for rubbing the corresponding sunken part of the formed part and the oil tank; the detection mechanism is used for detecting rubbing accuracy; the forming piece is attached to the impacted face of the oil tank, and the concave position of the oil tank is rubbed by the forming piece through the extrusion mechanism. The device has the effect that the impact head is convenient to replace, the impact position of the oil tank can be rubbed, visualization of impact deformation of the oil tank is achieved, and the impact analysis efficiency of the oil tank is improved.

Description

Technical Field

[0001] The present application relates to the field of fuel tank testing, and in particular to a fuel tank impact testing machine. Background Art

[0002] At present, the fuel tank impact tester is a test equipment used to evaluate the durability and safety performance of automobile fuel tanks in the event of impact and collision. With the development of the automobile industry and the improvement of safety awareness, the safety requirements for automobile fuel tanks are also getting higher and higher. The emergence of fuel tank impact testers provides an effective means for automobile manufacturers and R&D institutions to simulate and evaluate the performance of fuel tanks in accidents, and help them improve the design and material selection to improve the overall safety of the car; the main function of the fuel tank impact tester is to simulate the impact and collision force of the car in an accident to evaluate the structural strength and protection ability of the fuel tank.

[0003] A Chinese patent with patent publication number CN117232870A in the related technology proposes a fuel tank impact testing machine, which belongs to the technical field of fuel tank testing equipment, including a limit mechanism, an impact mechanism, an upper crossbeam, a fixing mechanism and a detection mechanism. The limit mechanism includes a fuel tank and a limit assembly. The fuel tank is installed on the limit assembly, the upper crossbeam is connected to the limit assembly, the impact mechanism is installed on the limit assembly, the fuel tank is impacted by the impact mechanism, the fixing mechanism is installed on the upper crossbeam, the impact mechanism is connected to the fixing mechanism, the fuel tank is fixed during the impact process by the fixing mechanism, the detection mechanism is installed on the limit assembly, the detection mechanism is connected to the impact mechanism, the fuel tank after the impact is detected by the detection mechanism, the present invention realizes that impact detection of various points of the fuel tank can be performed without reloading and unloading, thereby improving detection efficiency.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the impact test on multiple surfaces of the fuel tank, especially when the fuel tank plane is impacted, the impact process is currently captured by a high-speed camera and then analyzed frame by frame to determine the degree and process of the impact change. The impact results cannot be quantitatively and intuitively observed, and there is a problem of low efficiency in analyzing the impact process. Summary of the invention

[0005] In order to improve the problem of low efficiency in impact process analysis, the present application provides a fuel tank impact testing machine.

[0006] The fuel tank impact testing machine provided in this application adopts the following technical solution: A fuel tank impact testing machine comprises a frame, a fixing device for fixing the fuel tank, an impact device for impacting the fuel tank, and a marking device for rubbing the impact position of the fuel tank; The marking device includes a bracket lifted and lowered on the frame, a marking frame slidably arranged on the bracket in the horizontal direction, a molded part movably arranged on the marking frame, a traction mechanism for traction of the molded part, an extrusion mechanism for rubbing the corresponding concave parts of the molded part and the oil tank, and a detection mechanism for detecting the rubbing accuracy; The molded part is fitted to the impacted surface of the oil tank, and the molded part is pressed by the extrusion mechanism to print the concave part of the oil tank.

[0007] Optionally, the traction machine mechanism includes a winding assembly for winding the molded part and a flattening assembly for flattening the molded part, the winding assembly includes two winding rollers and two winding motors, one end of the molded part is fixedly connected to the outer peripheral wall of the winding roller, the molded part is wound on the other winding roller, and the two winding motors respectively control the rotation of the two winding rollers.

[0008] Optionally, the flattening assembly includes a fixed rod fixed on the identification frame, a fixed roller rotatably connected to the fixed rod, a movable rod slidably arranged on the identification frame, a movable roller rotatably connected to the movable rod, and a control unit for achieving the fitting of the fixed roller and the movable roller, the fixed rod and the movable roller are both vertically arranged, the fixed roller and the movable roller are close to the winding roller on which the shaping piece is wound, and the shaping piece passes through between the fixed roller and the movable roller.

[0009] Optionally, the control part includes a control rod, a handle and a control spring, the fixed rod is provided with a through hole for the control rod to pass through, one end of the control rod passing through the through hole is fixedly connected to the movable rod, the handle is fixedly connected to the other end of the control rod, the control spring is sleeved outside the control rod, and the two ends of the control spring are respectively fixedly connected to the handle and the peripheral wall of the fixed rod, and the control spring is in a compressed state when the fixed roller and the movable roller squeeze the forming piece.

[0010] Optionally, the extrusion mechanism includes an extrusion cylinder slidably disposed on the identification frame, a sealing assembly disposed at the opening of the extrusion cylinder, a water supply assembly for supplying water to the extrusion cylinder, an extrusion plate slidably disposed in the extrusion cylinder, and a cleaning assembly for removing moisture from the forming part; the extrusion cylinder is fixedly connected to an extrusion electric push rod for applying force to the extrusion plate, the extrusion plate is slidably adapted in the extrusion cylinder, the extrusion cylinder is provided with a water inlet and a water outlet, and the extrusion cylinder is provided with solenoid valves at the water inlet and the water outlet.

[0011] Optionally, the cleaning assembly includes a cleaning plate, an adsorption member, a cleaning roller, a cleaning motor for controlling the rotation of the cleaning roller, and a first motor for controlling the rotation of the cleaning plate; the extrusion plate is provided with an inner cavity; the extrusion plate is also provided with a cleaning port; the cleaning plate rotates and is adapted to the cleaning port; the adsorption member is fixed to the back side of the cleaning plate; the cleaning plate and the cleaning roller have opposite rotation directions; and during the rotation of the cleaning plate, the cleaning roller squeezes the adsorption member.

[0012] Optionally, the detection mechanism includes a detection frame lifted and lowered on the frame, a verification rod, a detection rod, a marking component for marking the verification rod and the movement trajectory of the detection rod, and a monitoring component for monitoring whether there is a difference between the shaped part and the recessed part of the fuel tank. The verification rod and the detection rod are elastically arranged on the detection frame and are both horizontally arranged. The verification rod detects the recessed part of the fuel tank, and the detection rod detects the shaped part.

[0013] Optionally, the marking assembly includes an approval pen, a detection pen, marking paper and a traction part for pulling the marking paper to move, the movement direction of the marking paper is perpendicular to the distribution direction of the approval pen and the detection pen, the approval pen is vertically connected to the approval rod, the detection pen is also vertically connected to the detection rod, and the approval pen and the detection pen are arranged in parallel.

[0014] Optionally, the monitoring component includes an infrared receiver, an infrared transmitter, a buzzer electrically connected to the infrared receiver, an approval block and a detection block, the detection block is slidably arranged in the approval block, the approval block is penetrated by a first waist-shaped groove, and the detection block is penetrated by a second waist-shaped groove, when the first waist-shaped groove is connected with the second waist-shaped groove, the infrared receiver receives the signal of the infrared transmitter, that is, the gap between the shaping component and the recessed part of the fuel tank is large at this position.

[0015] Optionally, the impact device includes a retractable impact rod, a reciprocating mechanism for controlling the reciprocating motion of the impact rod, and an impact head detachably connected to the impact rod, the end sliding sleeve of the impact rod is provided with a threaded sleeve, the impact head is fixedly connected to the threaded rod, the end of the threaded sleeve away from the threaded rod is fixedly connected to a clamping ring, the clamping ring is slidably arranged outside the impact rod, the outer wall of the end of the impact rod is fixedly connected to an abutment ring, and the threaded sleeve is threadedly connected to the threaded rod when the abutment ring abuts against the clamping ring.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the shaped piece needs to be pulled out from the winding roller, the control rod needs to be used to control the movable rod to move away from the fixed rod. After the fixed roller and the movable roller are separated, the shaped piece is passed through the fixed roller and the movable roller, and the force applied to the control rod is removed. Under the elastic force of the control spring, the movable roller and the fixed roller are squeezed and fitted against each other, and then a force can be applied to the shaped piece to flatten it; to ensure that the shaped piece is initially fitted against the corresponding plane of the oil tank. Of course, the winding assembly also includes multiple guide rollers for guiding the shaped piece to the plane that hits the oil tank; 2. Control the extrusion plate to start squeezing the water. Since the water can completely fill the recess of the mailbox, the molded part is squeezed and deformed under the action of the water pressure and fits tightly against the recess of the mailbox. In the whole process, the aluminum foil will not be damaged, and the rubbing work of the molded part is completed. Then the water is released from the extrusion cylinder, and the water flows into the water supply tank. When the rubbing work is completed, the first motor controls the cleaning plate to rotate 180°, and the adsorption part faces the molded part. At this time, the extrusion plate is controlled to continue to move toward the molded part until the adsorption part is squeezed and deformed and squeezed into the groove formed by the molded part. At this time, the adsorption part absorbs the water in the molded part to prevent the water in the molded part from being not cleaned thoroughly, resulting in the residual water continuing to cause the molded part to deform after the molded part is taken out later. 3. As the verification rod and the detection rod move together, the verification pen records the depth change of the depressed part of the fuel tank on the marking paper, while the detection pen records the depth change trend of the shaped part on the marking paper. By comparing the two curves, if the deviation of a certain position on the curve is large, it proves that there is a rubbing problem here and needs to be reprocessed. If the two curves have basically the same trend, it means that the rubbing work is completed; and when the distance between the verification pen and the detection pen suddenly changes greatly, it means that there is a big problem at this position and it needs to be checked in detail. The first waist-shaped groove and the second waist-shaped groove are connected, the infrared receiver receives the signal from the infrared transmitter, and the buzzer sounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 yes Figure 1 A magnified schematic diagram of part A; Figure 3 is a schematic diagram of a detection mechanism in an embodiment of the present application; Figure 4 is a schematic diagram of a marking paper and a traction roller in an embodiment of the present application; Figure 5 Schematic diagram of a winding roller, a moving roller and a fixed roller in an embodiment of the present application; Figure 6 It is a schematic diagram of the flattening component in an embodiment of the present application.

[0018] Figure numerals: 1, frame; 2, bracket; 3, identification frame; 4, forming part; 5, winding roller; 6, winding motor; 7, fixed rod; 8, fixed roller; 9, moving rod; 10, moving roller; 11, control rod; 12, handle; 13, control spring; 14, extrusion cylinder; 15, sealing assembly; 16, extrusion plate; 17, water inlet; 18, water outlet; 19, cleaning plate; 20, adsorption part; 21, cleaning roller; 22, cleaning motor; 23, first motor; 24, cleaning port; 25, detection frame; 26, verification rod; 27 , detection rod; 28, verification pen; 29, detection pen; 30, marking paper; 31, traction roller; 32, traction motor; 33, infrared receiver; 34, infrared transmitter; 35, buzzer; 36, verification block; 37, detection block; 38, first waist-shaped groove; 39, second waist-shaped groove; 40, impact rod; 41, impact head; 42, threaded sleeve; 43, threaded rod; 44, clamping ring; 45, abutment ring; 46, screw sleeve; 47, screw rod; 48, moving block; 49, moving groove; 50, bottom rod; 51, telescopic rod. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-6 This application is described in further detail.

[0020] The present application embodiment discloses a fuel tank impact testing machine. Figure 1-Figure 6 A fuel tank impact testing machine includes a frame 1, a fixing device for fixing the fuel tank, an impact device for impacting the fuel tank, and a marking device for imprinting the impact position of the fuel tank; the fixing device adopts the fixing tool in the prior art, that is, it is used to fix fuel tanks of different specifications, thereby improving the application scope of the testing machine in the embodiment of the present application. At present, most of the tooling adopts multiple positions to be positioned and fastened by threaded connection to ensure that the fuel tank will not be displaced during the impact process.

[0021] The impact device includes a telescopic impact rod 40, a reciprocating mechanism for controlling the reciprocating motion of the impact rod 40, and an impact head 41 detachably connected to the impact rod 40. The end sliding sleeve of the impact rod 40 is provided with a threaded sleeve 42, and the impact head 41 is fixedly connected to the threaded rod 43. The end of the threaded sleeve 42 away from the threaded rod 43 is fixedly connected to a clamping ring 44, and the clamping ring 44 is slidably arranged outside the impact rod 40. The outer wall of the end of the impact rod 40 is fixedly connected to an abutment ring 45. When the abutment ring 45 abuts against the clamping ring 44, the threaded sleeve 42 is threadedly connected to the threaded rod 43; the impact rod 40 includes a bottom rod 50 and a telescopic rod 51. The bottom rod 50 is rotatably connected to the frame 1, and The reciprocating mechanism can use the existing technology to pull the impact rod 40 to a horizontal position or even a higher position, and then impact the specified plane of the oil tank through the free fall movement of the impact rod 40 and the impact head 41. The telescopic rod 51 is slidably set in the bottom rod 50, and the bottom rod 50 is rotatably connected to the screw sleeve 46 at its opening. The telescopic rod 51 is fixedly connected to the screw 47, and the screw 47 is spirally matched with the screw sleeve 46. The inner wall of the bottom rod 50 is fixedly connected to a limiting block, and the peripheral wall of the screw 47 is provided with a limiting groove for limiting the sliding of the limiting block, thereby limiting the rotation of the screw 47, and the screw 47 can only move along the length direction of the bottom rod 50, thereby realizing the adjustment of the length of the impact rod 40.

[0022] When it is necessary to replace a different impact head 41, the threaded rod 43 on the impact head 41 is abutted against the end of the impact rod 40, the threaded sleeve 42 is controlled to be threadedly connected with the threaded rod 43, and the clamping ring 44 follows the threaded sleeve 42 to move toward the abutment ring 45 until the clamping ring 44 abuts against the abutment ring 45. Of course, in this embodiment, through holes can also be set on the abutment ring 45 and the clamping ring 44. After the pin is passed through the abutment ring 45 and the clamping ring 44 in turn, the relative rotation between the abutment ring 45 and the clamping ring 44 is restricted, and then under the threaded connection between the threaded sleeve 42 and the threaded rod 43 and the mutual restriction between the clamping ring 44 and the abutment ring 45, the replacement of the impact head 41 is completed, which is convenient for adapting to various different impact heads 41.

[0023] The marking device includes a bracket 2 which is lifted and arranged on a frame 1, a marking frame 3 which is slidably arranged on the bracket 2 in a horizontal direction, a molded part 4 which is movably arranged on the marking frame 3, a traction mechanism for traction of the molded part 4, an extrusion mechanism for imprinting the molded part 4 and the corresponding concave part of the oil tank, and a detection mechanism for detecting the accuracy of the imprinting; the molded part 4 is attached to the impacted surface of the oil tank, and the molded part 4 is imprinted on the concave part of the oil tank by the extrusion mechanism, and the lifting and lowering of the bracket 2 and the sliding of the marking frame 3 on the bracket 2 are realized by an electric push rod, and the molded part 4 is in the present invention. In the embodiment, materials such as aluminum foil or copper foil that are easy to shape and not easily deformed can be selected, and the aluminum foil can be rolled up for easy collection and installation. In this embodiment, after the formed part 4 is fitted with the corresponding surface of the fuel tank, the aluminum foil is squeezed by an extrusion mechanism, and then the aluminum foil is squeezed to a state where it fits with the recessed part of the fuel tank, thereby completing the rubbing work of the deformation of the recessed part of the fuel tank. Of course, a detection mechanism is also required to compare the rubbing of the aluminum foil with the recessed part of the mailbox to ensure the accuracy of the rubbing work, so as not to affect the staff's observation of the state of the recessed part of the fuel tank.

[0024] The traction machine mechanism includes a winding assembly for winding the formed part 4 and a flattening assembly for flattening the formed part 4. The winding assembly includes two winding rollers 5 and two winding motors 6. One end of the formed part 4 is fixedly connected to the outer peripheral wall of the winding roller 5. The formed part 4 is wound on another winding roller 5. The two winding motors 6 respectively control the rotation of the two winding rollers 5. The formed part 4 is wound on the winding roller 5 in the initial state for easy installation. It needs to be flattened during the unfolding process to ensure that the formed part is initially in contact with the corresponding plane of the oil tank. Of course, the winding assembly also includes multiple guide rollers for guiding the formed part to the plane where the oil tank hits.

[0025] The flattening assembly includes a fixed rod 7 fixed on the identification frame 3, a fixed roller 8 rotatably connected to the fixed rod 7, a movable rod 9 slidably arranged on the identification frame 3, a movable roller 10 rotatably connected to the movable rod 9, and a control unit for achieving the fit between the fixed roller 8 and the movable roller 10. The fixed rod 7 and the movable roller 10 are both vertically arranged. The fixed roller 8 and the movable roller 10 are close to the winding roller 5 wound with the shaping piece, and the shaping piece passes through between the fixed roller 8 and the movable roller 10; the control unit includes a control rod 11, a handle 12 and a control spring 13. The fixed rod 7 is provided with a through hole for the control rod 11 to pass through. One end of the control rod 11 passing through the through hole is fixedly connected to the movable rod 9, and the handle 12 is connected to the other end of the control rod 11. One end is fixedly connected, and the control spring 13 is sleeved on the outside of the control rod 11, and the two ends of the control spring 13 are respectively fixedly connected to the handle 12 and the peripheral wall of the fixed rod 7. When the fixed roller 8 and the movable roller 10 squeeze the shaped piece, the control spring 13 is in a compressed state; when the shaped piece needs to be pulled out from the winding roller 5, it is necessary to first control the movable rod 9 to move away from the fixed rod 7 by the control rod 11. After the fixed roller 8 is separated from the movable roller 10, the shaped piece is passed through the fixed roller 8 and the movable roller 10, and the force applied to the control rod 11 is removed. Under the elastic force of the control spring 13, the movable roller 10 and the fixed roller 8 are squeezed and fitted against each other, so that a force can be applied to the shaped piece to flatten it.

[0026] The extrusion mechanism includes an extrusion barrel 14 slidably arranged on the identification frame 3, a sealing component 15 arranged at the opening of the extrusion barrel 14, a water supply component for supplying water to the extrusion barrel 14, an extrusion plate 16 slidably arranged in the extrusion barrel 14, and a cleaning component for removing moisture from the shaped part. The extrusion barrel 14 is fixedly connected with an extrusion electric push rod for applying a force to the extrusion plate 16. The extrusion plate 16 is slidably adapted in the extrusion barrel 14. The extrusion barrel 14 is provided with a water inlet 17 and a water outlet 18, and the extrusion barrel 14 is provided with solenoid valves at the positions of the water inlet 17 and the water outlet 18. The water supply component includes a water supply tank and a water pump. The water pump draws water from the water inlet 17. The water outlet 18 is arranged at the bottom of the extrusion barrel 14 and is located at the water supply tank. , in the initial position, the extrusion plate 16 is located behind the water inlet 17, so water enters the extrusion cylinder 14, and the sealing assembly 15 adopts a sealing ring, which is arranged at the opening of the extrusion cylinder 14. The sealing ring ensures the sealing between the opening of the extrusion cylinder 14 and the molded part 4. When the water fills the space between the extrusion plate 16 and the molded part 4, of course, there may be a partial gap. At this time, the extrusion plate 16 is controlled to start squeezing the water. Since the water can completely fill the recessed part of the mailbox, the molded part 4 is squeezed and deformed under the action of the water pressure and is close to the recessed part of the mailbox. In the whole process, the aluminum foil will not be damaged, and the rubbing work of the shaped part is completed; then the water is released from the extrusion cylinder 14, and the water flows into the water supply tank again.

[0027] The cleaning assembly includes a cleaning plate 19, an adsorbent 20, a cleaning roller 21, a cleaning motor 22 for controlling the rotation of the cleaning roller 21, and a first motor 23 for controlling the rotation of the cleaning plate 19. The extrusion plate 16 is provided with an inner cavity, and the extrusion plate 16 is also provided with a cleaning port 24. The cleaning plate 19 rotates to fit the cleaning port 24. The adsorbent 20 is fixed on the back of the cleaning plate 19. The cleaning plate 19 and the cleaning roller 21 rotate in opposite directions. During the rotation of the cleaning plate 19, the cleaning roller 21 squeezes the adsorbent 20. The adsorbent 20 uses a sponge in the prior art, and the size of the adsorbent 20 is larger than the size of the concave part of the oil tank. The cleaning plate 19 and the cleaning port 24 are adapted to rotate. Adaptation, so when the extrusion plate 16 applies pressure to the water, it will not cause water to enter the cleaning port 24. The rotation axis of the cleaning plate 19 and the inner wall of the cleaning port 24 is located at the symmetry plane of the cleaning plate 19; when the rubbing work is completed, the first motor 23 controls the cleaning plate 19 to rotate 180°, and the adsorption part 20 faces the shaping part. At this time, the extrusion plate 16 is controlled to continue to move toward the shaping part until the adsorption part 20 is squeezed and deformed and squeezed into the groove formed by the shaping part. At this time, the adsorption part 20 adsorbs the water in the shaping part to prevent the water in the shaping part from being incompletely cleaned, resulting in the residual water continuing to cause the shaping part to deform after the shaping part is taken out later.

[0028] The detection mechanism includes a detection frame 25, a verification rod 26, a detection rod 27, a marking component for marking the movement trajectory of the verification rod 26 and the detection rod 27, and a monitoring component for monitoring whether there is a difference between the shaped part and the recessed part of the fuel tank. The verification rod 26 and the detection rod 27 are elastically arranged on the detection frame 25 and are both horizontally arranged. The verification rod 26 detects the recessed part of the fuel tank, and the detection rod 27 detects the shaped part. The detection rod 27 and the verification rod 26 are elastically connected to the detection frame 25, and the principle of their elastic movement is the same. The elastic principle of the verification rod 26 is listed in this embodiment, namely Yes, the detection frame 25 is provided with an approval hole for the movement of the approval rod 26, and a moving block 48 is fixedly connected to the side wall of the approval rod 26. A moving groove 49 for the movement of the moving block 48 is provided on the inner wall of the approval hole. The moving groove 49 is arranged along the depth direction of the approval hole, and both ends of the moving groove 49 are closed. The corresponding side wall of the moving block 48 and the corresponding end inner wall of the moving groove 49 are fixedly connected by a spring, thereby realizing the elastic effect of the approval rod 26 on the detection frame 25. In this embodiment, one end of the approval rod 26 and the detection rod 27 are both set to a pointed end to facilitate contact with the recessed part or the molded part of the oil tank.

[0029] The marking assembly includes an approval pen 28, a detection pen 29, a marking paper 30 and a traction part for pulling the marking paper 30 to move. The movement direction of the marking paper 30 is perpendicular to the distribution direction of the approval pen 28 and the detection pen 29. The approval pen 28 is vertically connected to the approval rod 26, and the detection pen 29 is also vertically connected to the detection rod 27. The approval pen 28 and the detection pen 29 are arranged in parallel; the marking paper 30 can be made of white paper, so that the approval pen 28 and the detection pen 29 can record on the marking paper 30. The traction part includes two traction rollers 31 and two traction motors 32. The traction roller 31 is rotatably arranged on the detection frame 25, and the axial direction of the traction roller 31 is perpendicular to the movement direction of the marking paper 30. The traction motor 32 is used to control the rotation of the traction roller 31. With the movement of the marking paper 30, the curve recorded on the marking paper 30 by the approval pen 28 and the calibration pen is flat. Line setting; in this embodiment, the identification frame 3 is first moved in the direction away from the fuel tank. At this time, the shaping piece is separated from the fuel tank, and then the shaping piece is pulled to the top of the fuel tank. Finally, the shaping piece is pulled to be in the same vertical plane as the impact plane of the fuel tank, and the detection frame 25 is lowered. At this time, the detection pen 29 and the approval pen 28 are also preferably located in the same vertical plane, and the approval rod 26 moves along the plane where the middle part of the depression of the fuel tank is located. As the approval rod 26 and the detection rod 27 move together, the approval pen 28 records the depth change of the depression of the fuel tank on the marking paper 30, and the detection pen 29 adds the depth change trend of the shaping piece on the marking paper 30. By comparing the two curves, if the deviation of a certain position on the curve is large, it proves that there is a rubbing problem here and it needs to be reprocessed. If the two curves have basically the same trend, it means that the rubbing work is completed.

[0030] The monitoring component includes an infrared receiver 33, an infrared transmitter 34, a buzzer 35 electrically connected to the infrared receiver 33, an approval block 36 and a detection block 37. The detection block 37 is slidably arranged in the approval block 36. The approval block 36 is penetrated by a first waist-shaped groove 38, and the detection block 37 is penetrated by a second waist-shaped groove 39. When the first waist-shaped groove 38 is connected to the second waist-shaped groove 39, the infrared receiver 33 receives the signal of the infrared transmitter 34, that is, there is a large gap between the shaping component and the recessed part of the fuel tank. Since the detection pen 29 and the approval pen 28 are arranged in parallel, and the distance between the two changes slightly relative to the initial distance, but within the allowable error, the signal of the infrared transmitter 34 is blocked by the approval block 36, and when the distance between the approval pen 28 and the detection pen 29 suddenly changes greatly, that is, there is a big problem at this position, which needs to be checked in detail, the first waist-shaped groove 38 is connected to the second waist-shaped groove 39, the infrared receiver 33 receives the signal of the infrared transmitter 34, and the buzzer 35 makes a sound.

[0031] The implementation principle of a fuel tank impact testing machine according to an embodiment of the present application is as follows: when it is necessary to pull the shaped piece out from the winding roller 5, it is necessary to first control the movable rod 9 to move away from the fixed rod 7 by the control rod 11. After the fixed roller 8 is separated from the movable roller 10, the shaped piece is passed through the fixed roller 8 and the movable roller 10, and the force applied to the control rod 11 is removed. Under the elastic force of the control spring 13, the movable roller 10 and the fixed roller 8 are squeezed and fitted against each other, and then a force can be applied to the shaped piece to flatten it, so as to ensure that the shaped piece is initially fitted with the corresponding plane of the fuel tank. Of course, the winding assembly also includes a plurality of guide rollers for guiding the shaped piece to the plane where the fuel tank hits.

[0032] The extrusion plate 16 is controlled to start extruding the water. Since the water can completely fill the depression of the mailbox, the molded part 4 is squeezed and deformed under the action of the water pressure and fits tightly against the depression of the mailbox. In the whole process, the aluminum foil will not be damaged, and the rubbing work of the molded part is completed. Then the water is released from the extrusion cylinder 14, and the water flows into the water supply tank. When the rubbing work is completed, the first motor 23 controls the cleaning plate 19 to rotate 180°, and the adsorption part 20 faces the molded part. At this time, the extrusion plate 16 is controlled to continue to move toward the molded part until the adsorption part 20 is squeezed and deformed and squeezed into the groove formed by the molded part. At this time, the adsorption part 20 adsorbs the water in the molded part to prevent the water in the molded part from being incompletely cleaned, resulting in the residual water continuing to cause the molded part to deform after the molded part is taken out later.

[0033] As the verification rod 26 and the detection rod 27 move together, the verification pen 28 records the depth change of the recessed part of the fuel tank on the marking paper 30, and the detection pen 29 adds the depth change trend of the shaped part on the marking paper 30. By comparing the two curves, if the deviation of a certain position on the curve is large, it proves that there is a rubbing problem here and needs to be reprocessed. If the two curves have basically the same trend, it means that the rubbing work is completed; and when the distance between the verification pen 28 and the detection pen 29 suddenly changes greatly, that is, there is a big problem at this position and it needs to be checked in detail, the first waist-shaped groove 38 and the second waist-shaped groove 39 are connected, the infrared receiver 33 receives the signal of the infrared transmitter 34, and the buzzer 35 makes a sound.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fuel tank impact testing machine, characterized in that: It comprises a frame (1), a fixing device for fixing the oil tank, an impact device for impacting the oil tank, and a marking device for rubbing the impact position of the oil tank; The marking device comprises a bracket (2) which is lifted and arranged on the frame (1), an marking frame (3) which is slidably arranged on the bracket (2) in a horizontal direction, a molded part (4) which is movably arranged on the marking frame (3), a traction mechanism for traction of the molded part (4), an extrusion mechanism for rubbing the corresponding concave part of the molded part (4) and the oil tank, and a detection mechanism for detecting the accuracy of the rubbing; The molded part (4) fits the impacted surface of the oil tank, and the molded part (4) is pressed by the extrusion mechanism to print the concave part of the oil tank.

2. The fuel tank impact testing machine according to claim 1, characterized in that: The traction machine mechanism comprises a winding assembly for winding the shaped part (4) and a flattening assembly for flattening the shaped part (4), the winding assembly comprises two winding rollers (5) and two winding motors (6), one end of the shaped part (4) is fixedly connected to the outer peripheral wall of the winding roller (5), the shaped part (4) is wound on the other winding roller (5), and the two winding motors (6) respectively control the rotation of the two winding rollers (5).

3. The fuel tank impact testing machine according to claim 2, characterized in that: The flattening assembly comprises a fixed rod (7) fixed on the identification frame (3), a fixed roller (8) rotatably connected to the fixed rod (7), a movable rod (9) slidably arranged on the identification frame (3), a movable roller (10) rotatably connected to the movable rod (9), and a control unit for achieving the fitting of the fixed roller (8) and the movable roller (10), wherein the fixed rod (7) and the movable roller (10) are both arranged vertically, and the fixed roller (8) and the movable roller (10) are close to the winding roller (5) on which the shaping member is wound, and the shaping member passes through between the fixed roller (8) and the movable roller (10).

4. The fuel tank impact testing machine according to claim 3, characterized in that: The control part comprises a control rod (11), a handle (12) and a control spring (13); the fixed rod (7) is provided with a through hole for the control rod (11) to pass through; one end of the control rod (11) passing through the through hole is fixedly connected to the movable rod (9); the handle (12) is fixedly connected to the other end of the control rod (11); the control spring (13) is sleeved outside the control rod (11), and the two ends of the control spring (13) are respectively fixedly connected to the handle (12) and the peripheral wall of the fixed rod (7); when the fixed roller (8) and the movable roller (10) squeeze the shaping member, the control spring (13) is in a compressed state.

5. The fuel tank impact testing machine according to claim 4, characterized in that: The extrusion mechanism comprises an extrusion cylinder (14) slidably arranged on the identification frame (3), a sealing component (15) arranged at the opening of the extrusion cylinder (14), a water supply component for supplying water to the extrusion cylinder (14), an extrusion plate (16) slidably arranged in the extrusion cylinder (14), and a cleaning component for removing moisture from the shaped part. The extrusion cylinder (14) is fixedly connected with an extrusion electric push rod for applying a force to the extrusion plate (16), and the extrusion plate (16) is slidably adapted in the extrusion cylinder (14). The extrusion cylinder (14) is provided with a water inlet (17) and a water outlet (18), and the extrusion cylinder (14) is provided with solenoid valves at the positions of the water inlet (17) and the water outlet (18).

6. The fuel tank impact testing machine according to claim 5, characterized in that: The cleaning assembly comprises a cleaning plate (19), an adsorbent (20), a cleaning roller (21), a cleaning motor (22) for controlling the rotation of the cleaning roller (21), and a first motor (23) for controlling the rotation of the cleaning plate (19); the extrusion plate (16) is provided with an inner cavity; the extrusion plate (16) is also provided with a cleaning port (24); the cleaning plate (19) is rotatably adapted to the cleaning port (24); the adsorbent (20) is fixed on the back side of the cleaning plate (19); the cleaning plate (19) and the cleaning roller (21) rotate in opposite directions; and during the rotation of the cleaning plate (19), the cleaning roller (21) extrude the adsorbent (20).

7. The fuel tank impact testing machine according to claim 5, characterized in that: The detection mechanism comprises a detection frame (25) which is lifted and arranged on the frame (1), a verification rod (26), a detection rod (27), a marking component for marking the movement tracks of the verification rod (26) and the detection rod (27), and a monitoring component for monitoring whether there is a difference between the shaped part and the recessed part of the oil tank. The verification rod (26) and the detection rod (27) are both elastically arranged on the detection frame (25) and are both arranged horizontally. The verification rod (26) detects the recessed part of the oil tank, and the detection rod (27) detects the shaped part.

8. The fuel tank impact testing machine according to claim 7, characterized in that: The marking assembly comprises a verification pen (28), a detection pen (29), a marking paper (30) and a traction part for pulling the marking paper (30) to move, the movement direction of the marking paper (30) is perpendicular to the distribution direction of the verification pen (28) and the detection pen (29), the verification pen (28) is vertically connected to the verification rod (26), the detection pen (29) is also vertically connected to the detection rod (27), and the verification pen (28) and the detection pen (29) are arranged in parallel.

9. The fuel tank impact testing machine according to claim 9, characterized in that: The monitoring component comprises an infrared receiver (33), an infrared transmitter (34), a buzzer (35) electrically connected to the infrared receiver (33), an approval block (36) and a detection block (37); the detection block (37) is slidably arranged in the approval block (36); the approval block (36) is provided with a first waist-shaped groove (38); the detection block (37) is provided with a second waist-shaped groove (39); when the first waist-shaped groove (38) is connected to the second waist-shaped groove (39), the infrared receiver (33) receives a signal from the infrared transmitter (34), indicating that the position of the shaping component and the recessed part of the fuel tank are relatively different.

10. The fuel tank impact testing machine according to claim 1, characterized in that: The impact device comprises a retractable impact rod (40), a reciprocating mechanism for controlling the reciprocating motion of the impact rod (40), and an impact head (41) detachably connected to the impact rod (40); a sliding sleeve at the end of the impact rod (40) is provided with a threaded sleeve (42); the impact head (41) is fixedly connected to a threaded rod (43); an end of the threaded sleeve (42) away from the threaded rod (43) is fixedly connected to a clamping ring (44); the clamping ring (44) is slidably arranged outside the impact rod (40); an abutment ring (45) is fixedly connected to the outer wall of the end of the impact rod (40); when the abutment ring (45) abuts against the clamping ring (44), the threaded sleeve (42) and the threaded rod (43) are threadedly connected.

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