CN112061235B - High-pressure-bearing anti-deformation automobile rear longitudinal beam and machining method thereof - Google Patents
High-pressure-bearing anti-deformation automobile rear longitudinal beam and machining method thereof Download PDFInfo
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- CN112061235B CN112061235B CN202010964376.XA CN202010964376A CN112061235B CN 112061235 B CN112061235 B CN 112061235B CN 202010964376 A CN202010964376 A CN 202010964376A CN 112061235 B CN112061235 B CN 112061235B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a high-pressure-bearing anti-deformation automobile rear longitudinal beam which comprises a rear longitudinal beam extension section, a rear longitudinal beam body, a cross beam, a damping spring seat and a triangular inclined supporting plate, wherein a first reinforcing plate is arranged at the welding part of the rear longitudinal beam extension section and the rear longitudinal beam body; covering a reinforcing piece on the first reinforcing plate and the third reinforcing plate, wherein flanges are formed on the edges of the reinforcing piece, and through holes are formed in the flanges; a support piece is arranged on the inner surface of the rear longitudinal beam body, two support frames are arranged between two side walls of the support piece, and a plurality of welding holes are formed in the two side walls; compared with the traditional automobile rear longitudinal beam, the manufacturing process is simpler, and the pressure bearing performance and the deformation resistance of the rear longitudinal beam are enhanced by arranging the triangular inclined supporting plate, the reinforcing piece and the supporting piece.
Description
Technical Field
The invention relates to a high-pressure-bearing anti-deformation automobile rear longitudinal beam and a machining method thereof, and belongs to the technical field of automobiles.
Background
The automobile is driven by power, and the non-rail-bearing vehicle with 4 wheels or more than 4 wheels is mainly used for carrying people and goods. The automobile accessory processing is to form all units of an automobile accessory processing whole body and serve products of the automobile accessory processing, the automobile accessories comprise engine accessories, walking system accessories, automobile interior accessories and the like, and structural firmness, construction process and functionality of an automobile rear longitudinal beam assembly in the existing automobile accessories are required to be improved.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a high-pressure-bearing anti-deformation automobile rear longitudinal beam which comprises a triangular inclined supporting plate arranged between a cross beam and a rear longitudinal beam body, a reinforcing part added at a welding position and a mode of adopting low-carbon alloy as a casting material, wherein the construction difficulty is reduced by adopting sectional construction, so that the integral pressure-bearing anti-deformation capability of the rear longitudinal beam is improved, and the problems in the background technology are solved.
The technical scheme adopted by the invention is as follows:
the rear longitudinal beam comprises a rear longitudinal beam extension section, a rear longitudinal beam body, a cross beam, a damping spring seat and a triangular inclined supporting plate, wherein groove structures are formed at the bottoms and two side edges of the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam; covering a reinforcing piece on the first reinforcing plate and the third reinforcing plate, wherein a concave cavity is formed in the middle of the reinforcing piece, flanges are formed on the edges of the reinforcing piece, and through holes are formed on the flanges; the inner surface of the rear longitudinal beam body is provided with a supporting piece, two supporting frames are arranged between two side walls of the supporting piece, two side walls of the supporting piece are in clearance fit with two side walls of the rear longitudinal beam body, and a plurality of welding holes are formed in the two side walls; and welding the side edge of the rear longitudinal beam body with a welding plate on the damping spring seat.
As a further preferred aspect of the present invention, a net-like or strip-like reinforcing rib is provided on the second reinforcing plate; the strength and toughness of the second reinforcing plate are further enhanced by the net-shaped or strip-shaped reinforcing ribs, so that the bearing capacity and the pressure resistance of the extending section of the rear longitudinal beam are improved.
As a further preferable mode of the invention, the front end of the rear longitudinal beam extension section is provided with a connecting flange with a through hole; the connecting flanging with the through hole facilitates the fixed connection of the front end of the extending section of the rear longitudinal beam with other parts of the automobile.
As a further preferred aspect of the present invention, the damping spring seat includes a welding plate with a welding hole and a spring seat, the welding plate is welded to an upper portion of the spring seat; the shock absorber spring holder is connected with the spring and can relieve the pressure that whole back longeron received as the bumper shock absorber of automobile body, and reduce wear.
As a further preferred aspect of the present invention, the reinforcement is provided with a welding jig positioning hole; when the first reinforcing plate and the third reinforcing plate are welded with the reinforcing parts, the welding fixture positioning holes in the reinforcing parts are clamped by the welding fixture, so that the accuracy of the welding positions is guaranteed.
As a further preferred aspect of the present invention, a concave cavity size is formed in the middle of the reinforcing member, and the cavity size is larger than the width of the first reinforcing plate and the third reinforcing plate; the cavity size of the reinforcing piece is larger than the width of the first reinforcing plate and the third reinforcing plate, so that the reinforcing piece can cover the first reinforcing plate and the third reinforcing plate, the firmness of the welding position is further enhanced, and the overall compressive capacity of the rear longitudinal beam is improved.
As a further preferred aspect of the present invention, the triangular inclined strut plate is provided with a plurality of weight-reducing through holes; the weight of the automobile is reduced to a certain extent by arranging the plurality of weight-reducing through holes.
A processing method of a high-pressure-bearing deformation-resistant automobile rear longitudinal beam comprises the following steps:
the method comprises the following steps: cutting out a low-carbon alloy steel plate for manufacturing the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam, and performing shot blasting operation on the cut low-carbon alloy steel plate;
step two: the method comprises the following steps of sequentially conveying low-carbon alloy steel plates for manufacturing a rear longitudinal beam extension section, a rear longitudinal beam body and a cross beam to a station of a numerical control flat-plate punching machine for punching operation by adopting a process of punching holes firstly and then forming by using a loading device such as a gantry support or an electromagnetic chuck;
step three: the numerical control flat-plate punching machine performs positioning, bit changing and punching according to a set program;
step four: the blanking device takes down the low-carbon alloy steel plate after the punching is finished, and then a grinding wheel polisher is used for finish machining and polishing the punched hole;
step five: after finishing and polishing, spraying a stamping lubricant on the surface of the low-carbon alloy steel plate, and performing punch forming by using a large-tonnage press, wherein the sections of the formed rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam are groove-shaped;
step six: and (3) smearing spot-welding adhesives on the rear end face of the rear longitudinal beam extension section, the front end face of the rear longitudinal beam body, the rear right end face of the rear longitudinal beam body and the front end face of the cross beam, preliminarily bonding the rear end of the rear longitudinal beam extension section with the front end of the rear longitudinal beam body and the rear right end of the rear longitudinal beam body with the front end of the cross beam, splicing to form a rear longitudinal beam assembly, and then welding and fixing the gluing position.
As a further preferred aspect of the present invention, the cutting device for cutting the low carbon alloy steel plate in the first step is a plasma cutting machine.
As a further preferable aspect of the present invention, the surface of the rear side member assembly is polished and sprayed with the corrosion-resistant oil after completion of step six.
The invention has the beneficial effects that: the triangular inclined supporting plate is arranged between the cross beam and the rear longitudinal beam body to enlarge the lap joint area between the cross beam and the rear longitudinal beam body, so that the structural rigidity of the connecting part is improved, and the reinforcing plate and the reinforcing part are arranged at the welding part between the extending section of the rear longitudinal beam and the rear longitudinal beam body and the welding part between the rear longitudinal beam body and the cross beam, so that the integral pressure resistance of the rear longitudinal beam is greatly improved, and the automobile is safer when running; the rear longitudinal beam is integrally divided into the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam for segmented construction, so that the defects of easy tensile crack and poor formability in integral forming are avoided, and the process difficulty is reduced by the segmented construction; the low-carbon alloy is used as a manufacturing material of the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam, has good wear resistance and toughness, and is suitable for being used as a longitudinal beam material with high compression resistance.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the present invention without the reinforcement and support members;
FIG. 3 is a schematic structural view of a reinforcement member of the present invention;
FIG. 4 is a schematic structural view of the support member of the present invention;
fig. 5 is a schematic structural view of the shock absorber spring seat of the present invention.
The main reference numerals in the figures have the following meanings:
1. rear longitudinal member extension, 2, rear longitudinal member body, 3, crossbeam, 4, shock attenuation spring holder, 41, welded plate, 42, spring holder, 5, triangle-shaped inclined supporting plate, 51, subtract heavy through-hole, 6, reinforcing plate one, 7, reinforcing plate two, 8, reinforcing plate three, 9, reinforcement, 91, turn-ups, 92, through-hole, 93, welding jig locating hole, 10, support piece, 101, support frame, 102, lateral wall, 103, welding hole, 11, connect the turn-ups.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-5: the embodiment is a high-pressure-bearing anti-deformation automobile rear longitudinal beam, which comprises a rear longitudinal beam extension section 1, a rear longitudinal beam body 2, a cross beam 3, a shock absorption spring seat 4 and a triangular inclined supporting plate 5, wherein groove structures are formed at the bottoms and two side edges of the rear longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3, the rear end of the rear longitudinal beam extension section 1 is welded with the front end of the rear longitudinal beam body 2, a reinforcing plate I6 is arranged at the welding part of the rear longitudinal beam extension section 1 and the rear longitudinal beam body 2, a reinforcing plate II 7 is arranged on the inner surface of the rear longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3 are horizontally welded, a reinforcing plate III 8 is arranged at the welding part of the rear longitudinal beam body 2 and the cross beam 3, and the side walls of the rear longitudinal beam body 2 and the cross beam 3 are respectively welded with two edge parts of the triangular inclined supporting plate 5; the first reinforcing plate 6 and the third reinforcing plate 8 are covered with reinforcing parts 9, a concave cavity is formed in the middle of each reinforcing part 9, flanges 91 are formed on the edges of each reinforcing part 9, and through holes 92 are formed in the flanges 91; a support member 10 is arranged on the inner surface of the rear longitudinal beam body 2, two support frames 101 are arranged between two side walls 102 of the support member 10, the two side walls 102 of the support member 10 are in clearance fit with the two side walls of the rear longitudinal beam body 2, and a plurality of welding holes 103 are arranged on the two side walls 102; the side edge of the rear side member body 2 is welded to the welding plate 41 on the damper spring seat 4.
In this embodiment, the second reinforcing plate 7 is provided with a net-shaped or strip-shaped reinforcing rib; the strength and toughness of the second reinforcing plate 7 are further enhanced by the net-shaped or strip-shaped reinforcing ribs, so that the bearing capacity and the pressure resistance of the rear longitudinal beam extension section 1 are improved.
In the embodiment, the front end of the rear longitudinal beam extension section 1 is provided with a connecting flange 11 with a through hole; the connecting flanging 11 with the through hole is convenient for the fixed connection of the front end of the rear longitudinal beam extension section 1 and other parts of the automobile.
In the embodiment, the damping spring seat 4 comprises a welding plate 41 with a welding hole and a spring seat 42, and the welding plate 41 is welded on the upper part of the spring seat 42; the shock absorption spring seat 4 is connected with the spring and can relieve pressure on the whole rear longitudinal beam as a shock absorber of the vehicle body, and abrasion is reduced.
In this embodiment, a welding jig positioning hole 93 is formed in the reinforcement 9; when the first reinforcing plate 6 and the third reinforcing plate 8 are welded with the reinforcing part 9, the welding fixture positioning hole 93 on the reinforcing part 9 is clamped by the welding fixture, so that the accuracy of the welding position is guaranteed.
In this embodiment, the middle of the stiffener 9 is formed with an inward concave cavity size, which is larger than the widths of the stiffener one 6 and the stiffener three 8; the cavity size of the reinforcing part 9 is larger than the widths of the first reinforcing plate 6 and the third reinforcing plate 8, so that the reinforcing part 9 can cover the first reinforcing plate 6 and the third reinforcing plate 8, the firmness of the welding position is further enhanced, and the overall pressure resistance of the rear longitudinal beam is improved.
In this embodiment, the triangular inclined strut plate 5 is provided with a plurality of weight-reducing through holes 51; the provision of a plurality of weight-reducing through-holes 51 reduces the weight of the automobile to some extent.
A processing method of a high-pressure-bearing deformation-resistant automobile rear longitudinal beam comprises the following steps:
the method comprises the following steps: cutting out a low-carbon alloy steel plate for manufacturing the rear longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3, and performing shot blasting operation on the cut low-carbon alloy steel plate;
step two: the method comprises the following steps of sequentially conveying low-carbon alloy steel plates for manufacturing a rear longitudinal beam extension section 1, a rear longitudinal beam body 2 and a cross beam 3 to stations of a numerical control flat-plate punching machine for punching operation by adopting a process of punching holes firstly and then forming by using a loading device such as a gantry support or an electromagnetic chuck;
step three: the numerical control flat-plate punching machine performs positioning, bit changing and punching according to a set program;
step four: the blanking device takes down the low-carbon alloy steel plate after the punching is finished, and then a grinding wheel polisher is used for finish machining and polishing the punched hole;
step five: after finishing and polishing, spraying a stamping lubricant on the surface of the low-carbon alloy steel plate, and performing punch forming by using a large-tonnage press, wherein the sections of the formed rear longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3 are groove-shaped;
step six: spot welding adhesives are coated on the rear end face of the rear longitudinal beam extension section 1, the front end face of the rear longitudinal beam body 2, the rear end right side end face of the rear longitudinal beam body 2 and the front end face of the cross beam 3, the rear end of the rear longitudinal beam extension section 1, the front end of the rear longitudinal beam body 2, the rear end right side of the rear longitudinal beam body 2 and the front end of the cross beam 3 are preliminarily bonded, a rear longitudinal beam assembly is spliced, and then the bonding position is welded and fixed.
In the implementation method, the plasma cutting machine is selected as the cutting equipment for cutting the low-carbon alloy steel plate in the first step.
In the implementation method, after the sixth step is completed, the surface of the rear longitudinal beam assembly is polished and sprayed with the anti-corrosion oil.
The high-bearing-capacity anti-deformation automobile rear longitudinal beam comprises a rear longitudinal beam extension section 1, a rear longitudinal beam body 2, a cross beam 3, a damping spring seat 4 and a triangular inclined supporting plate 5, the automobile rear longitudinal beam adopts a split construction method with low difficulty and high efficiency, low-carbon alloy is adopted as materials for manufacturing the longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3, the rear end of the rear longitudinal beam extension section 1 is welded with the front end of the rear longitudinal beam body 2, a reinforcing plate I6 is arranged at the welding position, the rear longitudinal beam body 2 and the cross beam 3 are horizontally welded, a reinforcing plate III 8 is arranged at the welding position of the rear longitudinal beam body 2 and the cross beam 3, a welding clamp positioning hole 93 on the reinforcing piece 9 is clamped by a welding clamp to accurately cover the reinforcing piece 9 on the reinforcing plate I6 and the reinforcing plate III 8, and the rear longitudinal beam is welded and fixed through a through hole 92 of a flanging 91 on the reinforcing piece 9, the welding position is firmer, meanwhile, the reinforcing part also improves the capability of the rear longitudinal beam for resisting the side pressure, the supporting part 10 is arranged on the inner surface of the rear longitudinal beam body 2, two supporting frames 101 are arranged between two side walls 102 of the supporting part 10, and the capability of the rear longitudinal beam for resisting the side pressure is also improved by the supporting frames 101; the connection area of back longeron body 2 and 3 junctions of crossbeam is less, when the car was hit the back, the back longeron structure is out of shape easily, influence the security and the travelling comfort of car, so the lap area of back longeron body 2 and crossbeam 3 is enlarged through welding triangle-shaped fagging 5 in the junction of back longeron body 2 and crossbeam 3, improve the structural rigidity at back longeron body 2 and 3 junction of crossbeam, weld the side of back longeron body 2 and the welded plate 41 on the damping spring seat 4 mutually, the damping spring seat 4 is connected with the spring and can alleviates the pressure that whole back longeron received as the bumper shock absorber of automobile body, reduce wear, security and travelling comfort when having increased the car and traveling.
A method for processing a rear longitudinal beam of a high-pressure-bearing anti-deformation automobile comprises the steps of firstly cutting low-carbon alloy steel plates for manufacturing a rear longitudinal beam extension section 1, a rear longitudinal beam body 2 and a cross beam 3 by a plasma cutting machine, carrying out shot blasting operation on the cut low-carbon alloy steel plates, adopting a process of punching holes and forming, sequentially sending the low-carbon alloy steel plates for manufacturing the rear longitudinal beam extension section 1, the rear longitudinal beam body 2 and the cross beam 3 to a station of a numerical control flat punching machine by using a loading device such as a gantry support or an electromagnetic chuck for punching operation, carrying out positioning, bit changing and punching operations by the numerical control flat punching machine according to a set program, taking down the low-carbon alloy steel plates after punching by a blanking device, carrying out finish machining and grinding on the punched holes by using a grinding wheel grinder, spraying a stamping lubricant on the surface of the low-carbon alloy steel plates after finish machining and grinding, and carrying out punch forming by using a large-tonnage press machine, the section of back longeron extension 1 after the shaping, back longeron body 2 and crossbeam 3 is the cell type, back longeron extension 1's rear end terminal surface department, the front end terminal surface of back longeron body 2, the rear end right side terminal surface of back longeron body 2 and the front end terminal surface department of crossbeam 3 all scribble and smear the spot welding adhesive, with back longeron extension 1 rear end and 2 front ends of back longeron body, 2 rear end right sides of back longeron body and 3 front ends of crossbeam preliminarily bond, splice into the back longeron assembly, again carry out welded fastening to veneer department, polish and the spraying anticorrosion oil to the surface of back longeron assembly at last.
The triangular inclined supporting plate is arranged between the cross beam and the rear longitudinal beam body to enlarge the lap joint area between the cross beam and the rear longitudinal beam body, so that the structural rigidity of the connecting part is improved, and the reinforcing plate and the reinforcing part are arranged at the welding part between the extending section of the rear longitudinal beam and the rear longitudinal beam body and the welding part between the rear longitudinal beam body and the cross beam, so that the integral pressure resistance of the rear longitudinal beam is greatly improved, and the automobile is safer when running; the rear longitudinal beam is integrally divided into the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam for segmented construction, so that the defects of easy tensile crack and poor formability in integral forming are avoided, and the process difficulty is reduced by the segmented construction; the low-carbon alloy is used as a manufacturing material of the rear longitudinal beam extension section, the rear longitudinal beam body and the cross beam, has good wear resistance and toughness, and is suitable for being used as a longitudinal beam material with high compression resistance.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (10)
1. Longeron behind high pressure-bearing resistance to deformation, its characterized in that: comprises a rear longitudinal beam extension section (1), a rear longitudinal beam body (2), a cross beam (3), a damping spring seat (4) and a triangular inclined supporting plate (5), the bottom and two side edges of the rear longitudinal beam extension section (1), the rear longitudinal beam body (2) and the cross beam (3) form a groove structure, the rear end of the rear longitudinal beam extension section (1) is welded with the front end of the rear longitudinal beam body (2), a first reinforcing plate (6) is arranged at the welding part of the rear longitudinal beam extension section (1) and the rear longitudinal beam body (2), a second reinforcing plate (7) is arranged on the inner surface of the rear longitudinal beam extension section (1), the rear longitudinal beam body (2) and the cross beam (3) are horizontally welded, a third reinforcing plate (8) is arranged at the welding part of the rear longitudinal beam body (2) and the cross beam (3), the side walls of the rear longitudinal beam body (2) and the cross beam (3) are respectively welded with two edge parts of the triangular inclined supporting plate (5); covering a reinforcing piece (9) on the first reinforcing plate (6) and the third reinforcing plate (8), forming an inwards concave cavity in the middle of the reinforcing piece (9), forming flanges (91) on each edge of the reinforcing piece (9), and arranging through holes (92) on the flanges (91); the inner surface of the rear longitudinal beam body (2) is provided with a supporting piece (10), two supporting frames (101) are arranged between two side walls (102) of the supporting piece (10), the two side walls (102) of the supporting piece (10) are in clearance fit with the two side walls of the rear longitudinal beam body (2), and the two side walls (102) are provided with a plurality of welding holes (103); and welding the side edge of the rear longitudinal beam body (2) with a welding plate (41) on the damping spring seat (4).
2. The high-pressure-bearing deformation-resistant automobile rear longitudinal beam as claimed in claim 1, characterized in that net-shaped or strip-shaped reinforcing ribs are arranged on the second reinforcing plate (7).
3. The high-pressure-bearing deformation-resistant automobile rear longitudinal beam as claimed in claim 1, characterized in that the front end of the rear longitudinal beam extension section (1) is provided with a connecting flange (11) with a through hole.
4. The high pressure-bearing deformation-resistant automobile rear side member as claimed in claim 1, wherein the shock absorbing spring seat (4) comprises a welding plate (41) with a welding hole and a spring seat (42), and the welding plate (41) is welded on the upper portion of the spring seat (42).
5. The high-pressure-bearing deformation-resistant automobile rear longitudinal beam as claimed in claim 1, wherein a welding jig positioning hole (93) is formed in the reinforcement (9).
6. The high pressure-bearing deformation-resistant automobile rear longitudinal beam as claimed in claim 1, characterized in that the middle of the reinforcing member (9) is formed with an inward concave cavity size, and the cavity size is larger than the width of the first reinforcing plate (6) and the third reinforcing plate (8).
7. The high pressure-bearing deformation-resistant automobile rear longitudinal beam as claimed in claim 1, wherein a plurality of weight-reducing through holes (51) are provided on the triangular inclined strut plate (5).
8. The method for processing the high-pressure-bearing deformation-resistant automobile rear longitudinal beam is characterized by comprising the following steps of:
the method comprises the following steps: cutting out a low-carbon alloy steel plate for manufacturing the rear longitudinal beam extension section (1), the rear longitudinal beam body (2) and the cross beam (3), and performing shot blasting operation on the cut low-carbon alloy steel plate;
step two: the method comprises the following steps of adopting a process of punching holes firstly and then forming, sequentially conveying low-carbon alloy steel plates for manufacturing a rear longitudinal beam extension section (1), a rear longitudinal beam body (2) and a cross beam (3) to stations of a numerical control flat punching machine by using a loading device such as a gantry support or an electromagnetic chuck and the like to perform punching operation;
step three: the numerical control flat-plate punching machine performs positioning, bit changing and punching according to a set program;
step four: the blanking device takes down the low-carbon alloy steel plate after the punching is finished, and then a grinding wheel polisher is used for finish machining and polishing the punched hole;
step five: after finishing and polishing, spraying a stamping lubricant on the surface of the low-carbon alloy steel plate, and performing punch forming by using a large-tonnage press, wherein the sections of the formed rear longitudinal beam extension section (1), the rear longitudinal beam body (2) and the cross beam (3) are groove-shaped;
step six: the spot welding adhesive is smeared at the rear end face of the rear longitudinal beam extension section (1), the front end face of the rear longitudinal beam body (2), the rear end right side end face of the rear longitudinal beam body (2) and the front end face of the cross beam (3), the rear end of the rear longitudinal beam extension section (1) and the front end of the rear longitudinal beam body (2), the rear end right side of the rear longitudinal beam body (2) and the front end of the cross beam (3) are preliminarily bonded, a rear longitudinal beam assembly is spliced, and then the bonding position is welded and fixed.
9. The method for processing the rear longitudinal beam of the high-pressure-bearing deformation-resistant automobile as claimed in claim 8, wherein the cutting device for cutting the low-carbon alloy steel plate in the step one is a plasma cutting machine.
10. The method for processing the rear longitudinal beam of the automobile with high pressure bearing and deformation resistance as claimed in claim 8, wherein the surface of the rear longitudinal beam assembly is polished and sprayed with anti-corrosion oil after the sixth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964376.XA CN112061235B (en) | 2020-09-15 | 2020-09-15 | High-pressure-bearing anti-deformation automobile rear longitudinal beam and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010964376.XA CN112061235B (en) | 2020-09-15 | 2020-09-15 | High-pressure-bearing anti-deformation automobile rear longitudinal beam and machining method thereof |
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| Publication Number | Publication Date |
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| CN112061235A CN112061235A (en) | 2020-12-11 |
| CN112061235B true CN112061235B (en) | 2022-08-12 |
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