CN112623039A - Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure - Google Patents
Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure Download PDFInfo
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- CN112623039A CN112623039A CN202011582230.5A CN202011582230A CN112623039A CN 112623039 A CN112623039 A CN 112623039A CN 202011582230 A CN202011582230 A CN 202011582230A CN 112623039 A CN112623039 A CN 112623039A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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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
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/026—Connections by glue bonding
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Abstract
The invention relates to an automobile A-pillar structure, a vehicle and a manufacturing method of the A-pillar structure. The vehicle of the invention, including the a-pillar structure, specifically includes the following steps for the manufacturing method of the invention: s1: connecting the extrusion die to extrusion equipment; s2: heating the aluminum alloy cast ingot; s3: extruding the aluminum alloy cast ingot by an extruding device for extruding; s4: drawing the extrusion; s5: the aluminum alloy is converted into an extrusion. S6: and embedding the pipe fitting into the A column body and then bending the whole structure or respectively bending the pipe body and the A column body and then embedding the pipe fitting into the A column body. The invention is beneficial to the light weight design of the automobile and strengthens the A column.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile A column structure.
The invention also relates to an automobile comprising the A-pillar structure.
The invention also relates to a manufacturing method of the A-pillar structure.
Background
The automobile A column refers to support columns on the left side and the right side of a front windshield of an automobile, the lower end of each support column is connected with a lower automobile body of the automobile body, and the upper end of each support column extends to be connected with an automobile B column. As an important support structure of the passenger compartment, the passenger compartment itself must have sufficient rigidity and strength to ensure the overall performance of the vehicle body structure. In case of a collision of the vehicle, the a-pillar serves to transmit a collision impact to the rear of the vehicle, and thus its structure itself must have a strong impact resistance to protect the passenger compartment from being damaged.
Although the A column adopts a cavity type structure, the A column is not internally supported and has the defects of insufficient rigidity and insufficient impact energy absorption, and welding spots are easy to crack in the collision process, so that metal plates are bent, and secondary damage is caused to a passenger cabin.
Disclosure of Invention
The invention aims to provide an automobile A-pillar structure which has enough rigidity, can resist impact, is not easy to deform, avoids welding spots from cracking in the collision process, and can ensure the indoor safety of a passenger car.
Another object of the present invention is to provide a vehicle including the above-described a-pillar structure of an automobile, which can secure passenger compartment interior safety, and the a-pillar of which has higher rigidity.
Aiming at the automobile A-pillar structure, the automobile A-pillar structure is an integrally extruded cavity structure, the cavities are distributed along the axial direction of the A-pillar body, pipe fittings are arranged in the cavities, the pipe fittings are distributed along the axial direction of the cavities, and the A-pillar body is in bending fit with the pipe fittings.
Integrative extrusion can ensure the bulk stiffness, prevents the collision in-process, and the A post bumps scattered, and the pipe fitting is laid in A post body cavity, further promotes rigidity, and the crooked cooperation of A post body and pipe fitting makes pipe fitting and A post body coupling more inseparable, and difficult slippage, the A post body and the pipe fitting of bending state, when bearing the collision, the ability that the impact was resisted to arched structure is better.
As a further improvement of the automobile A-pillar structure, the automobile A-pillar structure forms a network-shaped cross section form during extrusion forming.
The network-shaped cross section form can form a network-shaped reinforcing rib structure inside the A column body, and is favorable for strengthening the inside of the A column body.
As a further improvement of the automobile A-pillar structure, the pipe fitting and the cavity are in interference fit. The interference fit enables the pipe fitting to be tightly connected in the cavity, so that the structure is more compact and the pipe fitting is not easy to slip.
As a further improvement of the automobile A-pillar structure, the A-pillar body is provided with at least 3 first connecting positions connected with the automobile body below the automobile body; at least 3 second joints for connecting to the B-pillar of the vehicle.
The first junction makes the A-pillar body be convenient for with the automobile body coupling of getting off, connect more closely, be favorable to the assembly, the second junction makes the A-pillar body be convenient for with B-pillar connection, be favorable to the assembly.
As a further improvement of the automobile A-pillar structure, the A-pillar body is provided with at least one first connecting surface connected with the front windshield; at least one second connecting surface connected with the front door sealing strip; the at least one third connecting surface and the at least one plaque mounting hole are connected with the A-pillar plaque.
The installation of other vehicle body parts is facilitated, the assembly is convenient, and the connection is strengthened.
As a further improvement of the automobile A-pillar structure, the A-pillar body 1 is formed by extrusion molding of an aluminum alloy material. The aluminum alloy is extruded and formed, and the light automobile body is formed.
As a further improvement of the automobile A-column structure, the pipe fitting is a high-strength steel pipe, and the yield strength of the pipe fitting is over 1000 MPa. The high-strength steel pipe is convenient for improving the rigidity of the column A, the yield strength is preferably over 1000Mpa,
the vehicle comprises the automobile A-pillar structure. The method for manufacturing the automobile A-pillar structure used by the automobile specifically comprises the following steps:
s1: connecting an extrusion die to a port of extrusion equipment through a bolt;
s2: heating the aluminum alloy cast ingot to 360-380 ℃, and putting the aluminum alloy cast ingot into an extrusion cylinder of extrusion equipment;
s3: an extrusion device in the extrusion equipment advances to an extrusion die at a preset extrusion speed to extrude the aluminum alloy cast ingot from a die hole of the extrusion die to form an extrusion piece;
s4: one end of the formed extrusion piece is fixed through traction equipment, and traction is completed along with the work of the extrusion equipment;
s5: the aluminum alloy cast ingots in the extrusion cylinder are all converted into extrusion pieces, and the extrusion pieces are cut according to preset sizes through cutting equipment.
S6: and embedding the pipe fitting into the A column body and then bending the whole structure or respectively bending the pipe body and the A column body and then embedding the pipe fitting into the A column body.
The aluminum alloy extrusion molding is beneficial to improving the integrity of the A column, the A column is not easy to scatter when being collided, the pipe fitting is embedded into the A column and integrally bent, or the pipe fitting and the A column body are respectively bent and assembled, and after the pipe fitting and the A column are bent, the pipe fitting and the A column are arched, so that the deformation resistance of the pipe fitting and the A column is stronger.
The manufacturing method of the automobile A-pillar structure is further improved, wherein the extrusion die is provided with a network-shaped cross section form, and the aluminum alloy is extruded to form a network-shaped reinforcing plate positioned inside the A-pillar body.
The network-shaped cross section is favorable for forming a network-shaped reinforcing plate inside the A column body, the overall rigidity is improved, the A column can be reinforced, and the network-shaped reinforcing plate is arranged adjacent to the cavity and is favorable for supporting the pipe fitting.
According to the automobile A-pillar structure, the three-dimensional network-shaped effective force transmission channel is formed through the A-pillar body and the high-strength steel pipes which are fixed in the cavity of the A-pillar body and are arranged along the axial direction of the A-pillar body, the defects of insufficient rigidity and insufficient impact energy absorption of the A-pillar in the prior art are overcome, the effect of dispersing collision energy is achieved to the maximum extent, and a good effect is achieved for keeping structural integrity and safety;
according to the automobile A-pillar structure, the A-pillar body is connected with an automobile body through SPR (self-piercing riveting) or FDS (hot melt self-tapping) structural adhesive, a plurality of first connecting parts used for fixing the SPR or FDS with the automobile body lower automobile body are formed on the end face of one axial end, and a plurality of second connecting parts used for fixing the SPR or FDS with the automobile B-pillar are formed on the end face of the other axial end, so that the problems that in the prior art, welding spots crack and metal plates are bent in the collision process of the A-pillar, and a passenger cabin is damaged secondarily are solved.
Drawings
Fig. 1 is a partial perspective view of an a-pillar structure of an automobile according to an embodiment of the present invention.
Fig. 2 is an enlarged cross-sectional view of point a in fig. 1.
Reference numerals: 1. a column A body; 2. a pipe fitting; 11. a first connection; 12. a second connection; 13. a first connection face; 14. a second connection face; 15. a third connection surface; 151. plaque mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Fig. 1-2 show an automobile a-pillar structure of the present invention, which is an integrally extruded cavity structure, the cavities are axially distributed along an a-pillar body 1, and pipe fittings 2 are arranged in the cavities, the pipe fittings 2 are axially distributed along the cavities, and the a-pillar body 1 and the pipe fittings 2 are in bending fit.
Integrative extrusion can ensure the bulk stiffness, prevents the collision in-process, and the A post bumps scattered, and pipe fitting 2 is laid in 1 cavity of A post body, further promotes rigidity, and the crooked cooperation of A post body 1 and pipe fitting 2 makes pipe fitting 2 and A post body 1 connect more closely, is difficult for the slippage, and the A post body 1 and the pipe fitting 2 of bending condition, when bearing the collision, the ability that the impact was resisted to arched structure is better.
In the present embodiment, the a-pillar structure of the automobile forms a network-like sectional form when extruded.
The cross section form of the network shape can form a network-shaped reinforcing rib structure inside the A-pillar body 1, and is beneficial to strengthening the inside of the A-pillar body 1.
In this embodiment, the pipe 2 and the cavity are in interference fit. Interference fit makes pipe fitting 2 zonulae occludens in the cavity, the structure is compacter, difficult slippage.
In the present embodiment, the a-pillar body 1 has at least 3 first joints 11 to the vehicle body under the vehicle body; at least 3 second joints 12 for connection to the B-pillar of the vehicle.
In the present embodiment, the a-pillar body 1 has at least one first connection surface 13 connected to the front windshield; at least one second attachment surface 14 attached to the front door weatherstrip, at least one third attachment surface 15 and at least one trim mounting hole 151 are attached to the A-pillar trim.
In the present embodiment, the a-pillar body 1 is extruded from an aluminum alloy material. The aluminum alloy is extruded and formed, and the light automobile body is formed.
In this embodiment, the pipe 2 is a high-strength steel pipe having a yield strength of 1000Mpa or more. The high-strength steel pipe is convenient for improving the rigidity of the column A, the yield strength is preferably over 1000Mpa,
the invention discloses a vehicle which comprises the automobile A-pillar structure. The automobile uses the automobile A column structure, is favorable for the lightweight design of the automobile body, and when the automobile is collided, the rigidity of the A column is higher, the deformation resistance is stronger, and the indoor safety of the passenger car is protected.
Example 2
The invention discloses a manufacturing method of an automobile A-pillar structure, which specifically comprises the following steps:
s1: connecting an extrusion die to a port of extrusion equipment through a bolt;
s2: heating the aluminum alloy cast ingot to 360-380 ℃, and putting the aluminum alloy cast ingot into an extrusion cylinder of extrusion equipment;
s3: an extrusion device in the extrusion equipment advances to an extrusion die at a preset extrusion speed to extrude the aluminum alloy cast ingot from a die hole of the extrusion die to form an extrusion piece;
s4: one end of the formed extrusion piece is fixed through traction equipment, and traction is completed along with the work of the extrusion equipment;
s5: the aluminum alloy cast ingots in the extrusion cylinder are all converted into extrusion pieces, and the extrusion pieces are cut according to preset sizes through cutting equipment.
S6: the pipe fitting 2 is embedded into the A column body 1 and then the whole structure is subjected to stretch bending or the pipe body 2 and the A column body 1 are subjected to stretch bending respectively and then the pipe fitting 2 is embedded into the A column body 1.
Aluminum alloy extrusion is favorable to improving the wholeness of A post, and when receiving the collision, difficult scattered, embedding pipe fitting 2 in it, whole stretch bending, or pipe fitting 2 and A post body 1 stretch bending respectively, assemble again, and after the stretch bending, pipe fitting 2 and A post become the arch, and its ability of resisting the deformation is stronger.
In the present embodiment, the extrusion die has a cross-sectional form of a net shape, so that the aluminum alloy is extruded to form a net-shaped reinforcing plate located inside the a-pillar body 1.
The network-shaped cross section is beneficial to forming a network-shaped reinforcing plate inside the A column body 1, the overall rigidity is improved, the A column can be reinforced, and the network-shaped reinforcing plate is arranged adjacent to the cavity and is beneficial to supporting the pipe fitting 2.
Example 3
The invention provides an automobile A-pillar structure, which comprises an A-pillar body, wherein a cavity is formed in the A-pillar body; wherein, a pipe fitting is arranged in the cavity of the A column body; the embodiment of the invention is beneficial to improving the safety performance of the vehicle body, and solves the problem that the A column in the prior art is easy to have welding spot cracking and sheet metal bending in the collision process due to insufficient rigidity and insufficient impact energy absorption, so that the passenger compartment is damaged secondarily.
Example 4
The utility model provides an automobile A post structure, includes A post body 1 and pipe fitting 2, and there is the cavity A post body 1 is inside, and pipe fitting 2 is located the cavity.
In this embodiment, the axial direction of the pipe 2 in the cavity of the a-pillar body 1 is consistent with the length direction of the a-pillar body 1, and the length should be no less than the a-pillar body.
In this embodiment, the pipe 2 in the cavity of the a-pillar body 1 may adopt an interference fit.
In this embodiment, the pipe 2 is bonded by structural adhesive or mechanically within the cavity of the a-pillar body 1.
In the present embodiment, the a-pillar body 1 is formed with a plurality of first joints 11 for connection with the vehicle body under the vehicle on the end surface of one end of the shaft, and it is formed with a plurality of second joints 12 for connection with the B-pillar of the automobile on the end surface of the other end of the shaft.
In the present embodiment, the number of first joints 11 for connection to the vehicle body below the vehicle body is not less than three, and the number of second joints 12 for connection to the B-pillar of the vehicle is not less than three.
In the present embodiment, the a-pillar body 1 is on the outer wall in the radial direction.
In this embodiment, at least a first connection surface 13 for connecting with the front windshield and a second connection surface 14 for connecting with the front door weather strip are formed
In this embodiment, the a-pillar body 1 is made of an aluminum alloy material.
Example 5
The invention provides an automobile A-pillar structure and an automobile, which can solve the problem that a passenger compartment is damaged secondarily due to the fact that an A-pillar in the prior art is insufficient in rigidity and impact energy absorption and welding spot cracking and metal plate bending are prone to occur in the collision process.
The invention relates to an automobile A-column structure, which comprises an A-column body 1 and a pipe fitting 2, wherein a cavity is formed inside the A-column body, as shown in figure 2;
in this embodiment, the tube is located within the cavity of the a-pillar body;
in this embodiment, the axial direction of pipe fitting is unanimous with A post body length direction, and the length is no less than A post body for further connect with other parts.
In this embodiment, the pipe and the a-pillar body may adopt an interference fit.
In this embodiment, the tube 2 is bonded with structural glue or mechanically within the cavity of the a-pillar body 1.
In the present embodiment, the a-pillar body 1 has a plurality of first joints 11 formed on an end surface of one end in the longitudinal direction for connecting to the underbody, and a plurality of second joints 12 formed on an end surface of the other end for connecting to the B-pillar of the automobile.
In this embodiment, there are not less than three joints for connecting with the body under the automobile body, and there are not less than three joints for connecting with the automobile B-pillar.
In this embodiment, the a-pillar body is formed with at least a first coupling plane for coupling with a front windshield and a second coupling plane for coupling with a front door weather strip on a radially outer wall thereof.
The embodiment of the invention also provides an automobile which comprises the automobile A-pillar structure.
The embodiment of the invention has the following beneficial effects:
example 6
According to the automobile A-pillar structure provided by the embodiment of the invention, the rigidity and the strength of the whole A-pillar are enhanced through the A-pillar body and the pipe fittings which are fixed in the cavity of the A-pillar body and are axially arranged along the A-pillar body, and the defects of insufficient rigidity and insufficient impact energy absorption of the A-pillar in the prior art are overcome, so that the function of dispersing collision energy is maximally played, and a very good effect is achieved for keeping the structural integrity and the safety; the problem of among the prior art A post welding spot fracture and panel beating bend appear in the collision in-process, lead to passenger cabin to form secondary damage is overcome, be favorable to the automobile body security performance to improve.
As shown in fig. 1 and 2, the embodiment of the present invention provides an a-pillar structure of an automobile, which is respectively disposed on both left and right sides of a front windshield, and for the sake of convenience of description, the a-pillar structure of an automobile on one side will be described below as an example. The automobile A column structure comprises an A column body 1, wherein the A column body 1 is made of aluminum alloy materials (or other light alloy materials) and is integrally formed through extrusion, bending and bending, and a cavity is formed in the A column body; wherein, the extrusion forming process of the aluminum alloy A column body 1 comprises the following steps:
step one, connecting an extrusion die to a port of extrusion equipment through a bolt;
step two, heating the aluminum alloy cast ingot to 360-380 ℃, and putting the aluminum alloy cast ingot into an extrusion cylinder of extrusion equipment;
step three, an extrusion device in the extrusion equipment advances to an extrusion die at a certain extrusion speed to extrude the aluminum alloy cast ingot, and the aluminum alloy cast ingot is extruded from a die hole of the extrusion die to form an extrusion piece;
fixing one end of the formed extrusion piece through traction equipment, and completing traction along with the work of the extrusion equipment;
and step five, all the aluminum alloy cast ingots in the extrusion cylinder are converted into extrusion pieces, and the extrusion pieces are cut according to the preset size through cutting equipment.
Step six, the high-strength steel pipe can be embedded into the A column body 1 and then the whole structure is subjected to stretch bending, and the steel pipe and the A column body 1 can also be subjected to stretch bending respectively and then the steel pipe is embedded into the A column body 1.
A pipe fitting 2 is arranged in the cavity of the A column body 1; wherein, pipe fitting 2 can use the steel pipe that excels in, and pipe fitting 2 arranges along A1 axial of post body in the cavity of A post body 1 for the inside support that obtains of A post body, the defect that the A post rigidity is not enough among the prior art has been overcome, and the cross-sectional shape that extrudees the production also can play the effect of strengthening rib thereby furthest has played the effect of dispersed collision energy, improves the not enough defect of impact energy-absorbing, has played very good effect to keeping structural integrity and security.
In the embodiment, the cross-sectional shape is as shown in fig. 2, so that the a-pillar has good rigidity and energy absorption effect. Of course, other similar cross-sectional shapes may be used.
In this embodiment, the a-pillar body 1 is connected with the vehicle body by using SPR or FDS plus structural adhesive, a plurality of first connecting parts 11 for SPR or FDS fixation with the vehicle body lower vehicle body are formed on the end surface of one end in the axial direction, and a plurality of second connecting parts 12 for SPR or FDS fixation with the vehicle B-pillar are formed on the end surface of the other end in the axial direction, so that the problem that the passenger compartment is damaged secondarily due to welding point cracking and sheet metal bending of the a-pillar in the collision process in the prior art can be avoided. The first joint 11 and the second joint 12 may be designed to be flat, so that the riveting connection is good, and the number and shape of the joint surfaces may be adjusted accordingly. In one example, there are 4 first connections 11 and 4 second connections 12.
The invention also relates to an automobile comprising the front longitudinal beam corresponding to the automobile A-column structure.
The automobile A-pillar structure comprises the automobile A-pillar structure and has the same structure and connection relation with the automobile A-pillar structure.
The embodiment of the invention has the following beneficial effects:
according to the automobile A-pillar structure, the three-dimensional network-shaped effective force transmission channel is formed through the A-pillar body and the high-strength steel pipes which are fixed in the cavity of the A-pillar body and are arranged along the axial direction of the A-pillar body, the defects of insufficient rigidity and insufficient impact energy absorption of the A-pillar in the prior art are overcome, the effect of dispersing collision energy is achieved to the maximum extent, and a good effect is achieved for keeping structural integrity and safety;
according to the automobile A-column structure, the A-column body 1 is connected with an automobile body through SPR (surface plasma resonance) or FDS (fully drawn Standard) structural adhesive, a plurality of first connecting parts 11 for fixing with the automobile body through SPR or FDS are formed on the end face of one axial end, and a plurality of second connecting parts 12 for fixing with the automobile B-column through SPR or FDS are formed on the end face of the other axial end, so that the problem that in the prior art, a passenger cabin is damaged secondarily due to welding spot cracking and sheet metal bending of the A-column in the collision process can be solved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides an automobile A post structure, its characterized in that, its cavity structure as an organic whole extrusion, the cavity is followed A post body (1) axial distributes to set up pipe fitting (2) in the cavity, pipe fitting (2) distribute along the cavity axial, A post body (1) with pipe fitting (2) are crooked cooperation.
2. The automobile a-pillar structure of claim 1, wherein the automobile a-pillar structure forms a network-like sectional form when extruded.
3. The a-pillar structure of a vehicle as claimed in claim 1, wherein the pipe member (2) is an interference fit with the cavity.
4. The a-pillar structure of an automobile according to claim 1, wherein said a-pillar body (1) has at least 3 first junctions (11) with an underbody; at least 3 second joints (12) for connecting to the B-pillar of the vehicle.
5. The a-pillar structure for an automobile according to claim 1, wherein the a-pillar body (1) has at least one first connecting face (13) connected to a front windshield; at least one second connecting surface (14) connected to the front door weather strip; at least one third connection surface (15) and at least one plaque mounting hole (151) are connected with the A-pillar plaque.
6. The a-pillar structure for an automobile according to claim 1, wherein the a-pillar body (1) is extruded from an aluminum alloy material.
7. The a-pillar structure for an automobile according to claim 1, wherein said pipe member (2) is a high-strength steel pipe having a yield strength of 1000Mpa or more.
8. A vehicle comprising the automotive a-pillar structure of any one of claims 1-8.
9. The method for manufacturing an a-pillar structure of an automobile of claim 1, comprising the steps of:
s1: connecting an extrusion die to a port of extrusion equipment through a bolt;
s2: heating the aluminum alloy cast ingot to 360-380 ℃, and putting the aluminum alloy cast ingot into an extrusion cylinder of extrusion equipment;
s3: an extrusion device in the extrusion equipment advances to an extrusion die at a preset extrusion speed to extrude the aluminum alloy cast ingot from a die hole of the extrusion die to form an extrusion piece;
s4: one end of the formed extrusion piece is fixed through traction equipment, and traction is completed along with the work of the extrusion equipment;
s5: the aluminum alloy cast ingots in the extrusion cylinder are all converted into extrusion pieces, and the extrusion pieces are cut according to preset sizes through cutting equipment.
S6: the pipe fitting (2) is embedded into the A column body (1) and then the whole structure is subjected to stretch bending, or the pipe body (2) and the A column body (1) are subjected to stretch bending respectively and then the pipe fitting (2) is embedded into the A column body (1).
10. The manufacturing method of a pillar structure of an automobile a according to claim 9, wherein the extrusion die has a cross-sectional form of a net shape, so that the aluminum alloy is extruded to form a net-shaped reinforcing plate inside the a-pillar body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011582230.5A CN112623039B (en) | 2020-12-28 | 2020-12-28 | Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure |
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| CN202011582230.5A CN112623039B (en) | 2020-12-28 | 2020-12-28 | Automobile A-pillar structure, vehicle and manufacturing method of A-pillar structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558951A (en) * | 2022-01-17 | 2022-05-31 | 上海泽升汽车科技有限公司 | Forming method of aluminum alloy rear bumper for secondary energy absorption of automobile |
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| CN201834061U (en) * | 2010-09-10 | 2011-05-18 | 浙江吉利汽车研究院有限公司 | A pole for automobile |
| CN105946978A (en) * | 2016-05-11 | 2016-09-21 | 浙江吉利控股集团有限公司 | Reinforcing structure of automobile B pillar |
| CN205706883U (en) * | 2016-06-16 | 2016-11-23 | 比亚迪股份有限公司 | The pillar construction of automobile and there is its automobile |
| CN106080792A (en) * | 2016-07-29 | 2016-11-09 | 奇瑞汽车股份有限公司 | A kind of automobile support column |
| CN209176789U (en) * | 2018-11-30 | 2019-07-30 | 重庆长安新能源汽车科技有限公司 | Side wall A column with hinge installation reinforcing structure |
| CN209972586U (en) * | 2019-04-22 | 2020-01-21 | 广州汽车集团股份有限公司 | Car A post structure and car |
| CN211076065U (en) * | 2019-10-21 | 2020-07-24 | 长城汽车股份有限公司 | B-pillar reinforcing structure |
| CN212195652U (en) * | 2020-06-03 | 2020-12-22 | 重庆金康赛力斯新能源汽车设计院有限公司 | Car B post additional strengthening and car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558951A (en) * | 2022-01-17 | 2022-05-31 | 上海泽升汽车科技有限公司 | Forming method of aluminum alloy rear bumper for secondary energy absorption of automobile |
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| CN112623039B (en) | 2022-01-28 |
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