A-pillar, mortise and tenon structure of A-pillar and surrounding pipe beams, and vehicle

Abstract

An A-pillar comprises an A-pillar upper connector, an A-pillar body and an A-pillar lower connector, wherein the A-pillar upper connector and the A-pillar lower connector are formed by hot air expansion of aluminum or high-strength steel or ultra-high-strength steel respectively; the A-pillar body is formed by hot air expansion of high-strength steel or ultra-high-strength steel or aluminum extrusion; a first opening having a flanging structure is arranged on the inner side of the A-pillar upper connector, a fourth opening having a flanging structure is arranged on the front side of the A-pillar upper connector, a second opening having a flanging structure is arranged on the inner side of the A-pillar lower connector, a third opening having a flanging structure is arranged on the rear side of the A-pillar lower connector, and a U-shaped opening is arranged on the top of the A-pillar upper connector, and the U-shaped opening is formed in the laser cutting process of the A-pillar upper connector; the A-pillar and the surrounding structure are connected by mortise and tenon joints through the aforementioned first, second, third, fourth openings and the U-shaped opening. The present invention also provides a mortise and tenon joint structure between the A-pillar and the surrounding pipe beam and a vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle body structures, and in particular relates to an A-pillar and a mortise and tenon structure of the A-pillar and a surrounding tube beam. Background Art

[0002] The existing A-pillar is usually made by assembling and welding multiple thin plate stamping parts, and its connection with surrounding parts is mostly done by multi-faceted and multi-directional welding. This existing technology has the following disadvantages:

[0003] 1. The instantaneous heat energy of multi-faceted and multi-directional welding is large, which can easily lead to large welding deformation and poor connection accuracy;

[0004] 2. There are many solder joints, which may lead to welding defects and affect the connection performance;

[0005] 3. There are many parts, which makes welding complicated and the connection cost high. Summary of the invention

[0006] The present invention provides an A-pillar, comprising an A-pillar upper connecting piece, an A-pillar body and an A-pillar lower connecting piece;

[0007] The A-pillar upper connector and the A-pillar lower connector are respectively formed by hot air expansion of aluminum or high-strength steel or ultra-high-strength steel; the A-pillar body is formed by hot air expansion of high-strength steel or ultra-high-strength steel or aluminum extrusion;

[0008] A first opening having a flanging structure is provided on the inner side of the A-pillar upper connecting piece, and a fourth opening having a flanging structure is provided on the front side of the A-pillar upper connecting piece, and the first opening and the fourth opening are both formed in a hot air bulging forming process of the A-pillar upper connecting piece;

[0009] A second opening having a flanging structure is provided on the inner side of the A-pillar lower connecting member; a third opening having a flanging structure is provided on the rear side of the A-pillar lower connecting member, and the second opening and the third opening are both formed in a hot air expansion forming process of the A-pillar lower connecting member.

[0010] The top of the A-pillar upper connecting piece has a U-shaped opening, and the formation of the U-shaped opening is completed during the laser cutting process of the A-pillar upper connecting piece; the U-shaped opening is located above the second opening.

[0011] The A-pillar body is connected to the A-pillar upper connecting piece and the A-pillar lower connecting piece by mortise and tenon joints respectively.

[0012] The present invention also provides a mortise and tenon connection structure between an A-pillar and a surrounding pipe beam, wherein:

[0013] The two ends of the A-pillar upper side beam are respectively connected to the left A-pillar and the left C-pillar, and are composed of an A-pillar upper side beam body, a handle and a roof beam connecting piece, wherein the A-pillar upper side beam body is a tubular structure obtained by a hot air expansion forming process; one end of the A-pillar upper side beam body is connected to the U-shaped opening by a mortise and tenon joint;

[0014] The main beam of the instrument cross beam support is a tubular structure obtained by hot air expansion forming process, and one end of the main beam is inserted into the first opening, and the main beam of the instrument cross beam support is connected to the first opening by mortise and tenon joints;

[0015] The front side panel of the vehicle body is located in front of the A-pillar, and one end of the front side panel is inserted into the fourth opening, and one end of the front side panel of the vehicle body is connected to the fourth opening by a mortise and tenon joint; the front side panel of the vehicle body is a tubular structure obtained by a hot air bulging forming process;

[0016] The front floor beam is arranged transversely on the front side of the vehicle body, and one end of the front floor beam is inserted into the second opening, and one end of the front floor beam is connected to the second opening by a mortise and tenon joint; the front floor beam is a tubular structure obtained by a hot air bulging forming process;

[0017] The threshold beam is arranged longitudinally, and the front end is inserted into the third opening, and the threshold beam is connected to the third opening by mortise and tenon joints; the threshold beam is formed by extrusion;

[0018] Apply structural adhesive to all joint surfaces of the aforementioned mortise and tenon joints, and perform a small amount of repair welding on the mortise and tenon joints when necessary;

[0019] The present invention also provides a vehicle having the A-pillar as mentioned above.

[0020] The present invention also provides a vehicle having the mortise and tenon connection structure between the A-pillar and the surrounding pipe beam as mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the structural diagram of the connection between the A-pillar and the surrounding tube beams;

[0022] Figure 2 It is the first side view of the A-pillar;

[0023] Figure 3 It is the second side view of the A-pillar;

[0024] Figure 4 This is the AA section view of the A-pillar.

[0025] The reference numerals represent respectively: 1-A-pillar upper connecting piece; 2-A-pillar body; 3-A-pillar lower connecting piece; 4-floor front cross beam; 5-sill beam; 6-instrument panel cross beam bracket; 7-A-pillar upper side beam body; 8-body front side panel (Shotgun); 9-first opening; 10-second opening; 11-third opening; 12-fourth opening; 13-structural adhesive; 14-A-pillar body extrusion forming structure. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] 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 positions or positional relationships based on the vehicle's position or positional relationship, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The terms such as high-strength steel and ultra-high-strength steel involved in the present invention have common meanings in the manufacturing and processing fields and the material fields, which should be known to those skilled in the art, and therefore will not be elaborated here.

[0030] The A-pillar provided by the present invention is as follows: Figure 1-4 As shown, it includes an A-pillar upper connecting member 1, an A-pillar body 2 and an A-pillar lower connecting member 3;

[0031] The A-pillar upper connector 1 and the A-pillar lower connector 3 are respectively formed by hot air expansion of aluminum or high-strength steel or ultra-high-strength steel; the A-pillar body 2 is formed by hot air expansion of high-strength steel or ultra-high-strength steel or aluminum extrusion;

[0032] A first opening 9 having a flanging structure is provided on the inner side of the A-pillar upper connecting member 1, and a fourth opening 12 having a flanging structure is provided on the front side of the A-pillar upper connecting member 1. The first opening 9 and the fourth opening 12 are formed in a hot air bulging forming process of the A-pillar upper connecting member 1.

[0033] A second opening 10 having a flanging structure is provided on the inner side of the A-pillar lower connecting member 3 ; a third opening 11 having a flanging structure is provided on the rear side of the A-pillar lower connecting member 3 , and the second opening 10 and the third opening 11 are formed during the hot air expansion forming process of the A-pillar lower connecting member 3 .

[0034] The top of the A-pillar upper connecting member 1 has a U-shaped opening, and the formation of the U-shaped opening is completed during the laser cutting process of the A-pillar upper connecting member 1 ; the U-shaped opening is located above the second opening 12 .

[0035] The A-pillar body 2 is connected to the A-pillar upper connecting piece 1 and the A-pillar lower connecting piece by mortise and tenon joints respectively.

[0036] A mortise and tenon connection structure between an A-pillar and a surrounding tube beam, using the A-pillar as described above;

[0037] The two ends of the A-pillar upper side beam are respectively connected to the left A-pillar and the left C-pillar, and are composed of an A-pillar upper side beam body, a handle and a roof beam connecting piece. The A-pillar upper side beam body 7 is a tubular structure obtained by a hot air expansion forming process; one end of the A-pillar upper side beam body is connected to the U-shaped opening by a mortise and tenon joint;

[0038] The main beam of the instrument cross beam support is a tubular structure obtained by hot air expansion forming process, and one end of the main beam is inserted into the first opening 9, and the main beam of the instrument cross beam support is connected to the first opening 9 by mortise and tenon joints;

[0039] The front side plate (Shotgun) of the vehicle body is located in front of the A-pillar, and one end of the Shotgun is inserted into the fourth opening 12, and one end of the Shotgun is connected to the fourth opening 12 by a mortise and tenon joint; the Shotgun is a tubular structure obtained by a hot air bulging forming process;

[0040] Structural adhesive 13 is applied to the joint surfaces of the above-mentioned plurality of mortise and tenon joints, and a small amount of repair welding is performed at the mortise and tenon joints when necessary;

[0041] The front floor beam is arranged transversely on the front side of the vehicle body, and one end of the front floor beam is inserted into the second opening 10, and one end of the front floor beam is connected to the second opening 10 by mortise and tenon joints; the front floor beam is a tubular structure obtained by hot air bulging forming process;

[0042] The threshold beam 5 is arranged longitudinally, and its front end is inserted into the third opening 11, and the threshold beam 5 is connected to the third opening 11 by mortise and tenon joints; the threshold beam 5 is formed by extrusion;

[0043] The present invention also provides a vehicle body, which uses the aforementioned A-pillar, or the mortise and tenon connection structure of the aforementioned A-pillar and surrounding pipe beams.

[0044] Beneficial effects of the present invention:

[0045] 1. The tenon-and-mortise structure between the A-pillar and surrounding components is firmly connected, which can improve the connection performance of pipe beam parts and reduce welding defects;

[0046] 2. The mortise and tenon structure is combined with glue coating, and a small amount of welding can be performed as needed, thereby simplifying the complex connection relationship and complex welding process, reducing the connection cost and improving the connection efficiency;

[0047] 3. The A-pillar, A-pillar upper side beam body, body front side panel, and floor front cross beam of this application adopt a hot air expansion tube beam structure. Compared with the traditional stamping and welding structure, it has fewer parts, a higher degree of lightweight, and can also effectively improve the connection accuracy.

[0048] It should be understood that the size of the serial numbers of the steps in the embodiment of the present invention does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An A-pillar, characterized in that: It includes an A-pillar upper connecting piece, an A-pillar body and an A-pillar lower connecting piece; The A-pillar upper connector and the A-pillar lower connector are formed by hot air expansion of aluminum or high-strength steel or ultra-high-strength steel respectively; the A-pillar body is formed by hot air expansion of high-strength steel or ultra-high-strength steel or aluminum extrusion; A first opening having a flanging structure is provided on the inner side of the A-pillar upper connecting piece, and a fourth opening having a flanging structure is provided on the front side of the A-pillar upper connecting piece, and the first opening and the fourth opening are both formed in a hot air bulging forming process of the A-pillar upper connecting piece; A second opening having a flange structure is provided on the inner side of the A-pillar lower connecting member; a third opening having a flange structure is provided on the rear side of the A-pillar lower connecting member, and the second opening and the third opening are both formed in a hot air bulging forming process of the A-pillar lower connecting member; The top of the A-pillar upper connecting piece has a U-shaped opening; the U-shaped opening is located above the second opening.

2. An A-pillar as claimed in claim 1, characterized in that: The A-pillar body is connected to the A-pillar upper connecting piece and the A-pillar lower connecting piece by mortise and tenon joints respectively.

3. A mortise and tenon connection structure between an A-pillar and a surrounding tube beam, using the A-pillar according to claim 1 or 2, characterized in that: The two ends of the A-pillar upper side beam are respectively connected to the left A-pillar and the left C-pillar, and are composed of an A-pillar upper side beam body, a handle and a roof beam connecting piece. The A-pillar upper side beam body is a tubular structure obtained by a hot air expansion forming process; one end of the A-pillar upper side beam body is connected to the U-shaped opening by a mortise and tenon joint.

4. The mortise and tenon joint structure according to claim 3, characterized in that: The main beam of the instrument cross beam support is a tubular structure obtained by hot air expansion forming process, and one end is inserted into the first opening. The main beam of the instrument cross beam support is connected to the first opening by mortise and tenon joints.

5. The mortise and tenon joint structure according to claim 3, characterized in that: The front side panel of the vehicle body is located in front of the A-pillar, and one end is inserted into the fourth opening, and one end of the front side panel of the vehicle body is connected to the fourth opening by mortise and tenon joints; the front side panel of the vehicle body is a tubular structure obtained by hot air expansion forming process.

6. The mortise and tenon joint structure according to claim 3, characterized in that: The front floor beam is arranged transversely on the front side of the vehicle body, and one end of the front floor beam is inserted into the second opening, and one end of the front floor beam is connected to the second opening by mortise and tenon joints; the front floor beam is a tubular structure obtained by hot air expansion forming process.

7. The mortise and tenon joint structure according to claim 3, characterized in that: The threshold beam is arranged longitudinally, and the front end is inserted into the third opening, and the threshold beam is connected to the third opening by mortise and tenon joints; the threshold beam is obtained by extrusion forming.

8. The mortise and tenon joint structure according to any one of claims 3 to 7, characterized in that: All the joint surfaces of the aforementioned mortise and tenon connections are fastened by structural adhesive bonding or welding, and the formation of the U-shaped opening is completed during the laser cutting process of the connector on the A-pillar.

9. A vehicle, characterized in that: The invention has an A-pillar as claimed in any one of claims 1 to 2.

10. A vehicle, characterized in that: A mortise and tenon connection structure between an A-pillar and a surrounding tube beam is provided as described in any one of claims 3 to 8.

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