CN111572482A - Composite material formed automobile anti-collision beam energy absorption box and preparation method thereof - Google Patents
Composite material formed automobile anti-collision beam energy absorption box and preparation method thereof Download PDFInfo
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- CN111572482A CN111572482A CN202010464832.4A CN202010464832A CN111572482A CN 111572482 A CN111572482 A CN 111572482A CN 202010464832 A CN202010464832 A CN 202010464832A CN 111572482 A CN111572482 A CN 111572482A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
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Abstract
The invention discloses an automobile anti-collision beam energy absorption box formed by composite materials and a preparation method thereof, and particularly relates to the technical field of automobile parts. The invention absorbs the impact force by the elasticity of the return spring, the buffer bracket is deformed by the excessive impact force, the energy-absorbing box body is extruded, the energy-absorbing box body and the energy-absorbing metal sheet inside the energy-absorbing box body are extruded and deformed, the impact force is buffered, the energy-absorbing box is prevented from being deformed by slight impact force, the service life of the energy-absorbing box is prolonged, and the effective buffer capacity is realized when the energy-absorbing box is subjected to violent impact.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile parts, in particular to an automobile anti-collision beam energy absorption box formed by composite materials and a preparation method thereof.
Background
With the rapid development of the technology level and the continuous improvement of the life of people, more and more various small automobiles enter thousands of households as transportation and transportation tools, but the accompanying traffic accidents are also gradually increased. How to protect the safety of passengers to the maximum extent when various small and light automobiles have a collision accident, and reduce the damage of important parts of the automobiles as far as possible, so that the loss is reduced to the minimum, which has become the direction of efforts of various automobile manufacturers. The front anti-collision beam is a main safety part of an automobile, the energy absorption effect of the front anti-collision beam structure in the frontal collision is an important measure index of the safety performance of the automobile, the anti-collision beam is a device for reducing the energy absorption of the automobile when the automobile is collided, most of the existing anti-collision beams comprise a main beam, an energy absorption box and a mounting plate connected with the automobile, the main beam and the energy absorption box can effectively absorb the collision energy when the automobile is collided at low speed, and the damage of the collision force to the automobile body longitudinal beam is reduced as much as possible.
The prior art has the following defects: the existing energy absorption boxes are directly fixed at two ends of an anti-collision beam frame, the impact force borne by the anti-collision beam frame is absorbed by the deformation of the energy absorption boxes, the structure is fixed, the energy absorption boxes can also deform when the anti-collision beam frame is slightly impacted, and the deformation of the energy absorption boxes is irreversible, so that the total energy absorption capacity is reduced, the service life of the energy absorption boxes is influenced, and the effective buffering capacity in the face of violent impact is reduced.
Disclosure of Invention
Therefore, the embodiment of the invention provides an automobile anti-collision beam energy absorption box formed by composite materials and a preparation method thereof, the impact force is buffered and absorbed through the elasticity of a return spring, a slight impact force is absorbed, a buffer bracket is deformed by the excessive impact force, the energy absorption box body is extruded, the energy absorption box body and an energy absorption metal sheet in the energy absorption box body are extruded and deformed, the impact force is buffered, the impact force with different force on an anti-collision beam frame is classified and buffered, the energy absorption box is prevented from being deformed by the slight impact force, the service life of the energy absorption box is prolonged, and the problem caused by the fact that the energy absorption box can be deformed to a certain extent when the anti-collision beam frame is impacted in the prior art, the energy absorption effect of the energy absorption box is reduced, and the subsequent use effect of the energy absorption box is influenced is solved.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: an automobile anti-collision beam energy absorption box formed by composite materials comprises a supporting beam, wherein connecting sleeves are fixedly arranged at the tops of two ends of the supporting beam, movable beam columns are sleeved inside the connecting sleeves, an anti-collision beam frame is fixedly arranged between the top ends of the two movable beam columns, energy absorption box bodies are fixedly arranged at the bottoms of the two ends of the supporting beam, and installation fixing plates are fixedly arranged at the bottom ends of the energy absorption box bodies;
the movable beam column is characterized in that a fixed plate is fixedly arranged on the surface of the middle part of the movable beam column, reset positioning cylinders are fixedly arranged at two ends of the fixed plate, an installation rod is arranged in each reset positioning cylinder, the bottom end of each installation rod is fixedly welded with a supporting cross beam, a reset spring is sleeved outside each installation rod, and each reset spring is arranged in each reset positioning cylinder;
the energy-absorbing box body top is fixed and is provided with the mounting panel, be provided with the buffering support between mounting panel and the supporting beam, go up through bolt fixed connection between mounting panel, supporting beam and the buffering support, buffering support both ends and installation fixed plate fixed connection, the inside fixed energy-absorbing sheetmetal that is provided with of energy-absorbing box body.
Further, supporting beam and anticollision roof beam structure are made by aluminium alloy material, and inside for many cellular cavity settings, the anticollision roof beam structure is bow-shaped setting, anticollision roof beam structure both ends are all fixed and are provided with bumper installation piece.
Furthermore, a composite elastic cushion block is placed at the bottom end of the connecting sleeve and made of a composite resin material, and the bottom end of the movable beam column is abutted to the composite elastic cushion block.
Furthermore, the top end of the installation rod penetrates through the fixing plate, and a limiting block is fixedly arranged at the top end of the installation rod.
Further, the buffering support is made by elastic metal material, buffering support both ends are the crooked setting of the downward arc of nearly font slope, buffering support bottom both ends are all fixed and are provided with the installation leaf, installation leaf and installation fixed plate bolt fixed connection.
Furthermore, the energy-absorbing box body is made of an aluminum alloy material, the surface of the energy-absorbing box body is provided with three crumpling grooves, and the three crumpling grooves are sequentially arranged in parallel from top to bottom.
Furthermore, the energy-absorbing metal sheets are arranged in a plurality of parallel, the energy-absorbing metal sheets are made of aluminum alloy composite materials and are arranged in a wave shape, collapse holes are formed in the surfaces of the energy-absorbing metal sheets and are arranged in a hexagon shape, the number of the collapse holes is set to be a plurality, a lower mounting plate is fixedly arranged at the bottom of the energy-absorbing box body and is fixedly connected with a mounting fixing plate through bolts, and the energy-absorbing metal sheets are welded with the lower mounting plate.
A preparation method of an automobile anti-collision beam energy absorption box formed by composite materials comprises the following steps:
the method comprises the following steps: cutting an aluminum alloy material plate, performing crumple groove stamping forming on the material plate by using stamping equipment, then curling the aluminum alloy material plate by using bending equipment, welding two ends to form a cylindrical structure, and cutting to obtain an energy absorption box body;
step two: cutting an aluminum alloy composite material sheet with an adaptive size corresponding to the internal space of the energy-absorbing box body, firstly punching and forming a collapsing hole by punching equipment, and then pressing the aluminum alloy composite material sheet by the punching equipment to enable the aluminum alloy composite material sheet to be pressed into a wave shape to obtain an energy-absorbing metal sheet;
step three: selecting a metal plate as a lower mounting plate, selecting a proper amount of energy-absorbing metal sheets prepared in the second step, welding and fixing the energy-absorbing metal sheets on the lower mounting plate corresponding to the internal shape of the energy-absorbing box body, subsequently plugging the energy-absorbing metal sheets which are welded and fixed into the energy-absorbing box body prepared in the first step, welding and fixing the energy-absorbing box body and the lower mounting plate at the same time, selecting the metal plate with the same size as the lower mounting plate as an upper mounting plate, and welding and fixing the energy-absorbing box body and the lower mounting plate to prepare a complete crumpling and energy-absorbing;
step four: the method comprises the following steps that a supporting beam is made of metal materials, two ends of the supporting beam are welded with a connecting sleeve and an installation rod, a fixing plate is welded in the middle of a movable column body, two ends of the fixing plate are welded with a reset positioning cylinder, a reset spring is sleeved on the installation rod in advance, a composite elastic cushion block is placed in the connecting sleeve in advance, the movable column body used for installation at two ends of an anti-collision beam frame is inserted into the connecting sleeve, the installation rod is correspondingly inserted into the reset positioning cylinder, and after the installation rod penetrates through the fixing plate, the installation rod is welded with a limiting block to;
step five: selecting an elastic metal plate, stamping and forming by using stamping equipment to manufacture a buffer support, placing the buffer support on the top of the upper mounting plate, pressing and fixing the buffer support and the upper mounting plate by using bolts to penetrate through the mounting support beam and the buffer support, and fixing the crumpling energy-absorbing structure in the third step and the buffer energy-absorbing structure in the fourth step to form an energy-absorbing box structure.
The embodiment of the invention has the following advantages:
1. the buffer support is arranged to support the supporting beam, when the anti-collision beam frame is slightly impacted, the movable beam column extends into the connecting sleeve to drive the reset positioning cylinder to compress the reset spring, the elastic force of the reset spring is utilized to buffer and absorb the impact force, when the anti-collision beam frame is violently impacted, after the reset spring absorbs a certain amount of impact force, the rest impact force enables the buffer support to deform, the energy absorption box body is extruded, the energy absorption box body and the energy absorption metal sheets inside the energy absorption box body are extruded and deformed to buffer the impact force, compared with the existing energy absorption box technology, the buffer support carries out classified buffering on the impact force with different force on the anti-collision beam frame, the energy absorption box is prevented from being deformed by the slight impact force, the service life of the energy absorption box is prolonged, and the effective buffering capacity in the face of violent impact is;
2. according to the energy-absorbing box, the energy-absorbing box body is arranged, the crumpling groove is formed by stamping when the energy-absorbing box body is manufactured, the stable crumpling of the energy-absorbing box body is facilitated, the deformation energy-absorbing effect is improved by the plurality of energy-absorbing metal blades, the energy-absorbing metal sheets are arranged in a wave shape, and the crumpling holes are formed, so that the energy-absorbing metal sheets are folded and crumpled conveniently, and the stable deformation energy-absorbing effect is provided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic view of the overall structure of the support beam provided by the present invention;
FIG. 3 is a schematic view of the overall construction of a crash beam provided by the present invention;
FIG. 4 is a schematic view of the overall structure of the buffer bracket according to the present invention;
FIG. 5 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
FIG. 6 is a schematic view of the overall structure of an energy absorbing cartridge according to the present invention;
FIG. 7 is a schematic view of the overall structure of an energy absorbing metal sheet according to the present invention;
in the figure: the energy-absorbing bumper comprises a supporting beam 1, a connecting sleeve 2, a movable beam column 3, an anti-collision beam frame 4, an energy-absorbing box 5, an installation fixing plate 6, a fixing plate 7, a reset positioning tube 8, an installation rod 9, a reset spring 10, an upper installation plate 11, a buffer bracket 12, an energy-absorbing metal sheet 13, a bumper installation block 14, a composite elastic cushion block 15, a limiting block 16, an installation blade 17, a crumpling groove 18, a crumpling hole 19 and a lower installation plate 20.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1-7 in the specification, the automobile anti-collision beam energy absorption box formed by the composite material comprises a supporting beam 1, wherein connecting sleeves 2 are fixedly arranged at the tops of two ends of the supporting beam 1, movable beam columns 3 are sleeved inside the connecting sleeves 2, an anti-collision beam frame 4 is fixedly arranged between the top ends of the two movable beam columns 3, energy absorption box bodies 5 are fixedly arranged at the bottoms of the two ends of the supporting beam 1, and mounting fixing plates 6 are fixedly arranged at the bottom ends of the energy absorption box bodies 5;
a fixed plate 7 is fixedly arranged on the surface of the middle part of the movable beam column 3, reset positioning cylinders 8 are fixedly arranged at two ends of the fixed plate 7, an installation rod 9 is arranged inside the reset positioning cylinder 8, the bottom end of the installation rod 9 is fixedly welded with the supporting cross beam 1, a reset spring 10 is sleeved outside the installation rod 9, and the reset spring 10 is arranged inside the reset positioning cylinder 8;
the energy-absorbing box body 5 top is fixed and is provided with mounting panel 11, be provided with buffer bracket 12 between mounting panel 11 and the supporting beam 1 on going, through bolt fixed connection between mounting panel 11, supporting beam 1 and the buffer bracket 12, buffer bracket 12 both ends and installation fixed plate 6 fixed connection, the inside fixed energy-absorbing sheetmetal 13 that is provided with of energy-absorbing box body 5.
Further, supporting beam 1 and crashproof roof beam structure 4 are made by aluminium alloy material, and inside for many cellular cavity settings, crashproof roof beam structure 4 is bow-shaped setting, 4 both ends of crashproof roof beam structure are all fixed and are provided with bumper installation piece 14, and the convenient impact force case both ends that will receive of 4 crashproof roof beam structures of bow-shaped setting convey, and many cellular hollow structure alleviates crashproof roof beam structure 4's weight, 14 easy to assemble bumpers of bumper installation piece.
Further, compound cushion block 15 has been placed to connecting sleeve 2 bottom, compound cushion block 15 is made by composite resin material, 3 bottoms of walking beam post are contradicted with compound cushion block 15 and are set up, and when walking beam post 3 stretched into connecting sleeve 2, compound cushion block 15 was suppressed, utilizes compound cushion block 15's elasticity to cushion the suppression power, improves shock resistance.
Further, the top end of the installation rod 9 penetrates through the fixing plate 7, a limiting block 16 is fixedly arranged at the top end of the installation rod 9, the limiting block 16 is used for limiting the position of the installation rod 9, the installation rod 9 is prevented from being separated from a reset positioning barrel, and the movable beam column 3 and the anti-collision beam frame 4 are prevented from being influenced in installation and fixation.
Further, buffer bracket 12 is made by elastic metal material, buffer bracket 12 both ends are the downward arc bending setting of nearly font slope, buffer bracket 12 bottom both ends are all fixed and are provided with installation leaf 17, installation leaf 17 and the 6 bolt fixed connection of installation fixed plate utilize buffer bracket 12 to support supporting beam 1, as long as the impact force that receives can not make buffer bracket 12 deformation, energy-absorbing box body 5 just can not be out of shape because of the impact force, realizes the function of protection energy-absorbing box body 5.
Furthermore, the energy-absorbing box body 5 is made of an aluminum alloy material, the surface of the energy-absorbing box body 5 is provided with three crumpling grooves 18, the number of the crumpling grooves 18 is three, the three crumpling grooves 18 are sequentially arranged in parallel from top to bottom, and the crumpling grooves 18 facilitate crumpling deformation of the energy-absorbing box body 5 and absorb impact force.
Further, energy-absorbing sheetmetal 13 quantity sets up to a plurality of, and is a plurality of energy-absorbing sheetmetal 13 parallel arrangement sets up, energy-absorbing sheetmetal 13 is made by aluminum alloy composite, energy-absorbing sheetmetal 13 is the wave setting, energy-absorbing sheetmetal 13 has seted up the shrinkage cavity 19 on the surface, the shrinkage cavity 19 is the hexagon setting, and quantity sets up to a plurality of, the fixed mounting panel 20 that is provided with in 5 bottoms of energy-absorbing box body, lower mounting panel 20 and 6 bolt fixed connection of installation fixed plate, it is a plurality of energy-absorbing sheetmetal 13 all welds with lower mounting panel 20, and a plurality of energy-absorbing sheetmetals 13 improve shock resistance, and the wave sets up makes things convenient for energy-absorbing sheetmetal 13 to fold with wave bending part and warp, makes things convenient for the crumpling of energy-absorbing sheetmetal 13.
A preparation method of an automobile anti-collision beam energy absorption box formed by composite materials comprises the following steps:
the method comprises the following steps: cutting an aluminum alloy material plate, performing stamping forming on the plate by using a stamping device through a crumple groove 18, then curling the aluminum alloy material plate by using a bending device, welding two ends to form a cylindrical structure, and cutting to obtain an energy absorption box body 5;
step two: cutting an aluminum alloy composite material sheet with an adaptive size corresponding to the inner space of the energy-absorbing box body 5, firstly punching and forming a collapsing hole 19 by punching equipment, and then pressing the aluminum alloy composite material sheet by the punching equipment to enable the aluminum alloy composite material sheet to be pressed into a wave shape to obtain an energy-absorbing metal sheet 13;
step three: selecting a metal plate as a lower mounting plate 20, selecting a proper amount of energy-absorbing metal sheets 13 prepared in the second step, welding and fixing the energy-absorbing metal sheets 13 on the lower mounting plate 20 corresponding to the internal shape of the energy-absorbing box body 5, then stuffing the energy-absorbing metal sheets 13 welded and fixed into the energy-absorbing box body 5 prepared in the first step, welding and fixing the energy-absorbing box body 5 and the lower mounting plate 20 at the same time, selecting the metal plate with the same size as the lower mounting plate 20 as an upper mounting plate 11, and welding and fixing the energy-absorbing box body 5 and the lower mounting plate 20 to prepare a complete crumpling and energy-absorbing structure;
step four: the method comprises the steps that a supporting beam 1 is made of metal materials, two ends 1 of the supporting beam are welded with a connecting sleeve 2 and an installation rod 9, the middle of a movable column body 3 is welded with a fixing plate 7, two ends of the fixing plate 7 are welded with reset positioning cylinders 8, a reset spring 10 is sleeved on the installation rod 9 in advance, a composite elastic cushion block 15 is placed in the connecting sleeve 2 in advance, the movable column body 3 used for installation at two ends of an anti-collision beam frame 4 is inserted into the connecting sleeve 2, the installation rod 9 is correspondingly inserted into the reset positioning cylinders 8, and after the installation rod 9 penetrates through the fixing plate 7, a limiting block 16 is welded on the installation rod 9 to manufacture a complete;
step five: selecting an elastic metal plate, stamping and forming by using stamping equipment to form a buffer support 12, placing the buffer support 12 on the top of the upper mounting plate 11, pressing and fixing the buffer support 12 and the upper mounting plate 11 by using bolts to penetrate through the mounting support beam 1, and fixing the crumple energy-absorbing structure in the third step and the cushion energy-absorbing structure in the fourth step to form an energy-absorbing box structure.
The working principle is as follows:
referring to the attached drawings 1-7, when the anti-collision beam frame 4 is slightly impacted, the movable beam column 3 extends into the connecting sleeve 2 to drive the reset positioning cylinder 8 to compress the reset spring 10, the elastic force of the reset spring 10 buffers and absorbs the impact force, when the anti-collision beam frame 4 is violently impacted, after the reset spring 10 absorbs a certain amount of impact force, the rest impact force enables the buffer bracket 12 to deform to extrude the energy absorption box body 5, the energy absorption box body 5 and the energy absorption metal sheets 13 inside the energy absorption box body are extruded and deformed to buffer the impact force, the impact force with different force received by the anti-collision beam frame 4 is classified and buffered, the energy absorption box is prevented from deforming due to the slight impact force, the service life of the energy absorption box is prolonged, and the effective buffering capacity in the face of violent impact is realized;
referring to the attached drawings 5-7, when the energy-absorbing box body 5 deforms, the surface of the energy-absorbing box body 5 is stamped to form the crumpling groove 18 to be folded and deformed, the energy-absorbing box body 5 is stably crumpled and contracted, the energy-absorbing metal blades 13 improve the deformation energy-absorbing effect, the plurality of energy-absorbing metal sheets 13 improve the impact resistance, and the wavy arrangement facilitates the folding and deformation of the energy-absorbing metal sheets 13 by the wave bending parts, so that the crumpling and contraction deformation of the energy-absorbing metal sheets 13 is facilitated.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The utility model provides a fashioned car anticollision roof beam energy-absorbing box of combined material, includes supporting beam (1), its characterized in that: the energy-absorbing device is characterized in that connecting sleeves (2) are fixedly arranged at the tops of two ends of the supporting beam (1), movable beam columns (3) are sleeved inside the connecting sleeves (2), an anti-collision beam frame (4) is fixedly arranged between the top ends of the two movable beam columns (3), energy-absorbing box bodies (5) are fixedly arranged at the bottoms of the two ends of the supporting beam (1), and mounting and fixing plates (6) are fixedly arranged at the bottom ends of the energy-absorbing box bodies (5);
a fixing plate (7) is fixedly arranged on the surface of the middle part of the movable beam column (3), two ends of the fixing plate (7) are fixedly provided with a resetting positioning cylinder (8), an installation rod (9) is arranged inside the resetting positioning cylinder (8), the bottom end of the installation rod (9) is fixedly welded with the supporting beam (1), a resetting spring (10) is sleeved outside the installation rod (9), and the resetting spring (10) is arranged inside the resetting positioning cylinder (8);
the energy-absorbing box body (5) top is fixed and is provided with mounting panel (11), be provided with between mounting panel (11) and supporting beam (1) buffer bracket (12), go up between mounting panel (11), supporting beam (1) and the buffer bracket (12) through bolt fixed connection, buffer bracket (12) both ends and installation fixed plate (6) fixed connection, energy-absorbing box body (5) inside fixed energy-absorbing sheetmetal (13) that is provided with.
2. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: supporting beam (1) and anticollision roof beam structure (4) are made by aluminium alloy material, and inside for many cellular cavity settings, anticollision roof beam structure (4) are bow-shaped setting, anticollision roof beam structure (4) both ends are all fixed and are provided with bumper installation piece (14).
3. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: the composite elastic cushion block (15) is placed at the bottom end of the connecting sleeve (2), the composite elastic cushion block (15) is made of composite resin materials, and the bottom end of the movable beam column (3) is abutted to the composite elastic cushion block (15).
4. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: the top end of the installation rod (9) penetrates through the fixing plate (7), and a limiting block (16) is fixedly arranged at the top end of the installation rod (9).
5. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: buffer support (12) are made by elastic metal material, buffer support (12) both ends are the crooked setting of the downward arc of several font slopes, buffer support (12) bottom both ends are all fixed and are provided with installation leaf (17), installation leaf (17) and installation fixed plate (6) bolt fixed connection.
6. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: the energy-absorbing box body (5) is made of an aluminum alloy material, the surface of the energy-absorbing box body (5) is provided with three crumpling grooves (18), and the three crumpling grooves (18) are sequentially arranged in parallel from top to bottom.
7. The automotive crash beam energy absorption box formed by the composite material as claimed in claim 1, wherein: energy-absorbing sheetmetal (13) quantity sets up to a plurality of, and is a plurality of energy-absorbing sheetmetal (13) parallel arrangement sets up, energy-absorbing sheetmetal (13) are made by aluminum alloy composite, energy-absorbing sheetmetal (13) are the wave setting, collapse hole (19) have been seted up on energy-absorbing sheetmetal (13) surface, collapse hole (19) are the hexagon setting, and quantity sets up to a plurality ofly, fixed mounting panel (20) down that is provided with in energy-absorbing box body (5) bottom, mounting panel (20) and installation fixed plate (6) bolt fixed connection are a plurality of down energy-absorbing sheetmetal (13) all with lower mounting panel (20) welding.
8. A method for preparing an automobile anti-collision beam energy absorption box formed on the basis of any one of claims 1 to 7, which is characterized by comprising the following steps of:
the method comprises the following steps: cutting an aluminum alloy material plate, performing stamping forming on the plate by using stamping equipment through a crumpling groove (18), then curling the aluminum alloy material plate by using bending equipment, welding two ends to form a cylindrical structure, and cutting to obtain an energy absorption box body (5);
step two: cutting an aluminum alloy composite material sheet with an adaptive size corresponding to the inner space of the energy absorption box body (5), firstly punching and forming a collapsing hole (19) by punching equipment, and then pressing the aluminum alloy composite material sheet by the punching equipment to enable the aluminum alloy composite material sheet to be pressed into a wave shape to obtain an energy absorption metal sheet (13);
step three: selecting a metal plate as a lower mounting plate (20), selecting a proper amount of energy-absorbing metal sheets (13) prepared in the second step, welding and fixing the energy-absorbing metal sheets (13) on the lower mounting plate (20) corresponding to the internal shape of the energy-absorbing box body (5), then plugging the energy-absorbing metal sheets (13) which are welded and fixed into the energy-absorbing box body (5) prepared in the first step, welding and fixing the energy-absorbing box body (5) and the lower mounting plate (20) at the same time, selecting the metal plate with the same size as the lower mounting plate (20) as an upper mounting plate (11), and welding and fixing the energy-absorbing box body (5) and the lower mounting plate (20) to prepare a complete collapse energy-;
step four: the energy-absorbing buffer structure is characterized in that a supporting beam (1) is made of a metal material, two ends (1) of the supporting beam are welded with a connecting sleeve (2) and an installing rod (9), a fixing plate (7) is welded in the middle of a movable cylinder (3), two ends of the fixing plate (7) are welded with a reset positioning cylinder (8), a reset spring (10) is sleeved on the installing rod (9) in advance, a composite elastic cushion block (15) is placed in the connecting sleeve (2) in advance, the movable cylinder (3) used for installation at two ends of an anti-collision beam frame (4) is inserted into the connecting sleeve (2), the installing rod (9) is correspondingly inserted into the reset positioning cylinder (8), and after the installing rod (9) penetrates through the fixing plate (7), the installing rod (9) is welded with a limiting block (;
step five: selecting an elastic metal plate, stamping and forming by using stamping equipment to form a buffer support (12), placing the buffer support (12) on the top of an upper mounting plate (11), pressing and fixing by using bolts to penetrate through a mounting support beam (1), the buffer support (12) and the upper mounting plate (11), and fixing a crumpling energy-absorbing structure in the third step and a cushioning energy-absorbing structure in the fourth step to form an energy-absorbing box structure.
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| CN115626133A (en) * | 2022-11-01 | 2023-01-20 | 宁波吉威盛机械有限公司 | Front beam buffering connecting piece for new energy automobile |
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| CN202294642U (en) * | 2011-07-22 | 2012-07-04 | 浙江吉利汽车研究院有限公司 | Energy-absorption box |
| CN205273381U (en) * | 2015-12-07 | 2016-06-01 | 重庆六边形网络科技有限责任公司 | Automobile front anti -collision beam |
| CN109398276A (en) * | 2018-09-06 | 2019-03-01 | 北斗时空（天津）研究院有限公司 | A kind of Collipsion preventor |
| CN109591737A (en) * | 2018-11-09 | 2019-04-09 | 重庆腾海工贸有限公司 | A kind of automobile collision preventing crossbeam assembly |
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| CN115626133A (en) * | 2022-11-01 | 2023-01-20 | 宁波吉威盛机械有限公司 | Front beam buffering connecting piece for new energy automobile |
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