CN109278874B - Automobile threshold boundary beam - Google Patents
Automobile threshold boundary beam Download PDFInfo
- Publication number
- CN109278874B CN109278874B CN201811457415.6A CN201811457415A CN109278874B CN 109278874 B CN109278874 B CN 109278874B CN 201811457415 A CN201811457415 A CN 201811457415A CN 109278874 B CN109278874 B CN 109278874B
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- lap joint
- joint portion
- edge
- bottom wall
- side wall
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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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to an automobile doorsill boundary beam which comprises a boundary beam rear section and a boundary beam front section, wherein the boundary beam rear section comprises a first bottom wall, a first upper side wall and a first lower side wall; the front section of the boundary beam comprises a second bottom wall, a second upper side wall and a second lower side wall, the rear end part of the upper half part of the second bottom wall is a fifth lapping part, and the rear end part of the lower half part of the second bottom wall is a sixth lapping part which extends backwards out of the rear end part of the upper half part of the second bottom wall; the first lap joint portion and the fifth lap joint portion are overlapped and lapped together, and the first lap joint portion is located on the right side of the fifth lap joint portion, the second lap joint portion and the sixth lap joint portion are overlapped and lapped together, and the second lap joint portion is located on the left side of the sixth lap joint portion. The invention reduces the assembly difficulty, improves the lap joint stability and reduces the phenomenon that the welding sealant flows.
Description
Technical Field
The invention relates to an automobile part, in particular to an automobile threshold side beam.
Background
In order to reduce the workpiece feeding process and simplify the process flow, the workpiece feeding of large assemblies is generally adopted at present, and the structural form of a threshold area which is an important lap joint area between the large assemblies determines whether the operability of the welding process and the sealing performance of the inner space of the threshold are met. The sectional type automobile threshold boundary beam comprises a boundary beam rear section and a boundary beam front section, wherein the boundary beam rear section and the boundary beam front section are welded on two large assemblies respectively, and the boundary beam rear section and the boundary beam front section are welded into a whole when the two large assemblies are hoisted and welded in the assembling process. And general boundary beam back end and boundary beam anterior segment all are the slot-like sheet metal component that the section is "nearly" font among the prior art, and the notch of boundary beam back end and boundary beam anterior segment all faces the car in, the direct superpose of the preceding tip of boundary beam back end and the rear end of boundary beam anterior segment and overlap joint are in the same place, the automobile threshold boundary beam of this kind of structure need adjust the position of big assembly many times when final hoist and mount welding, boundary beam back end and boundary beam anterior segment can't be in the same place along the upper and lower direction concatenation, lead to the assembly degree of difficulty great.
Disclosure of Invention
The invention aims to provide an automobile doorsill side beam to reduce the assembly difficulty.
The invention relates to an automobile doorsill boundary beam, which comprises a U-shaped boundary beam rear section and a boundary beam front section, the side beam rear section comprises a first bottom wall extending along the front-rear direction, a first upper side wall extending leftwards from the upper edge of the first bottom wall and a first lower side wall extending leftwards from the lower edge of the first bottom wall, the front end part of the upper half part of the first bottom wall is a first overlapping part which extends forwards out of the front end part of the lower half part of the first bottom wall, the first lapping part inclines leftwards from bottom to top, the front end part of the lower half part of the first bottom wall is a second lapping part which inclines leftwards from top to bottom, the front end portion of the first upper side wall is a third overlapping portion extending leftwards from the upper edge of the first overlapping portion, the front end part of the first lower side wall is a fourth overlapping part extending leftwards from the lower edge of the second overlapping part;
the front section of the side beam comprises a second bottom wall, a second upper side wall extending leftwards from the upper edge of the second bottom wall and a second lower side wall extending leftwards from the lower edge of the second bottom wall, the rear end part of the upper half part of the second bottom wall is a fifth overlapping part inclining leftwards from bottom to top, the rear end part of the lower half part of the second bottom wall is a sixth overlapping part extending backwards from the rear end part of the upper half part of the second bottom wall, the sixth overlapping part inclines leftwards from top to bottom, the rear end part of the second upper side wall is a seventh overlapping part extending leftwards from the upper edge of the fifth overlapping part, and the rear end part of the second lower side wall is an eighth overlapping part extending leftwards from the lower edge of the sixth overlapping part;
the first lap joint portion and the fifth lap joint portion are overlapped and lapped together, and the first lap joint portion is located at the right side of the fifth lap joint portion, the second lap joint portion and the sixth lap joint portion are overlapped and lapped together, and the second lap joint portion is located at the left side of the sixth lap joint portion, the third lap joint portion and the seventh lap joint portion are overlapped and lapped together, and the third lap joint portion is located at the upper side of the seventh lap joint portion, the fourth lap joint portion and the eighth lap joint portion are overlapped and lapped together, and the fourth lap joint portion is located at the upper side of the eighth lap joint portion.
Further, a welding sealing glue layer is arranged between the first overlapping part and the fifth overlapping part.
Further, a welding sealing glue layer is arranged between the second overlapping part and the sixth overlapping part.
Further, the included angle between the first lap joint part and the horizontal plane is less than or equal to 80 degrees, and the included angle between the fifth lap joint part and the horizontal plane is less than or equal to 80 degrees.
Furthermore, the included angle between the second lapping part and the horizontal plane is less than or equal to 80 degrees, and the included angle between the sixth lapping part and the horizontal plane is less than or equal to 80 degrees.
Further, the clearance between the lower edge of the first overlapping part and the upper edge of the sixth overlapping part in the vertical direction is not less than 1mm and not more than 3 mm.
Further, a gap in the front-rear direction between the front edge of the second overlapping section and the rear edge of the fifth overlapping section is not less than 10 mm.
Furthermore, the left edge of the first upper side wall, the left edge of the first lower side wall, the left edge of the second upper side wall and the left edge of the second lower side wall are all provided with flanges.
The invention reduces the assembly difficulty, improves the lap joint stability and reduces the phenomenon that the welding sealant flows.
Drawings
FIG. 1 is a schematic view of a car sill rocker lift according to the present invention;
FIG. 2 is a second schematic view of the car sill side rail of the present invention being hoisted;
FIG. 3 is a third schematic view of the lifting of the rocker side sill of the vehicle of the present invention;
FIG. 4 is a schematic structural view of the lap joint between the rear section of the side sill and the front section of the side sill in accordance with the present invention;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
fig. 6 is a sectional view taken along line B-B in fig. 4.
In the figure: 1-side beam rear section; 2-front section of boundary beam; 3-a first bottom wall; 4-a first upper sidewall; 5-a first lower side wall; 6-a first lap joint; 7-a second lap joint; 8-a third lap joint; 9-a fourth lap joint; 10-a second bottom wall; 11-a second upper side wall; 12 — a second lower sidewall; 13-a fifth lap joint; 14-a sixth lap joint; 15-a seventh lap joint; 16 — eighth lap joint.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 6, the rocker side sill of the automobile comprises a U-shaped side sill rear section 1 and a side sill front section 2, wherein the side sill rear section 1 and the side sill front section 2 are both sheet metal parts, the side sill rear section 1 comprises a first bottom wall 3 extending along the front-rear direction, a first upper side wall 4 extending leftward from the upper edge of the first bottom wall 3 and a first lower side wall 5 extending leftward from the lower edge of the first bottom wall 3, wherein the front end of the upper half of the first bottom wall 3 is a first overlapping part 6 extending forward beyond the front end of the lower half of the first bottom wall 3, the first overlapping part 6 is inclined leftward from bottom to top, the front end of the lower half of the first bottom wall 3 is a second overlapping part 7 inclined leftward from top to bottom, the front end of the first upper side wall 4 is a third overlapping part 8 extending leftward from the upper edge of the first overlapping part 6, and the front end of the first lower side wall 5 is a fourth overlapping part 9 extending leftward from the lower edge of the second overlapping part 7;
the side beam front section 2 comprises a second bottom wall 10, a second upper side wall 11 extending leftwards from the upper edge of the second bottom wall 10 and a second lower side wall 12 extending leftwards from the lower edge of the second bottom wall 10, the rear end part of the upper half part of the second bottom wall 10 is a fifth overlapping part 13 inclining leftwards from bottom to top, the rear end part of the lower half part of the second bottom wall 10 is a sixth overlapping part 14 extending backwards and extending out of the rear end part of the upper half part of the second bottom wall 10, the sixth overlapping part 14 inclines leftwards from top to bottom, the rear end part of the second upper side wall 11 is a seventh overlapping part 15 extending leftwards from the upper edge of the fifth overlapping part 13, and the rear end part of the second lower side wall 12 is an eighth overlapping part 16 extending leftwards from the lower edge of the sixth overlapping part 14;
the first lap joint portion 6 and the fifth lap joint portion 13 are superposed and overlapped together, and the first lap joint portion 6 is located on the right side of the fifth lap joint portion 13, the second lap joint portion 7 and the sixth lap joint portion 14 are superposed and overlapped together, and the second lap joint portion 7 is located on the left side of the sixth lap joint portion 14, the third lap joint portion 8 and the seventh lap joint portion 15 are superposed and overlapped together, and the third lap joint portion 8 is located on the upper side of the seventh lap joint portion 15, the fourth lap joint portion 9 and the eighth lap joint portion 16 are superposed and overlapped together, and the fourth lap joint portion 9 is located on the upper side of the eighth lap joint portion 16, and all of the above-mentioned overlapping can be achieved by welding.
Further, a welding sealant layer is arranged between the first lap joint part 6 and the fifth lap joint part 13. The welding sealing glue layer is used for realizing the sealing between the first overlapping part 6 and the fifth overlapping part 13, and the welding sealing glue layer is extruded on the right surface of the fifth overlapping part 13 when the boundary beam rear section 1 and the boundary beam front section 2 are overlapped.
Further, a welding sealant layer is arranged between the second lap joint part 7 and the sixth lap joint part 14. The welding sealing glue layer is used for realizing the sealing between the second overlapping part 7 and the sixth overlapping part 14, and the welding sealing glue layer is firstly extruded on the left surface of the sixth overlapping part 14 when the boundary beam rear section 1 and the boundary beam front section 2 are overlapped.
Preferably, as shown in fig. 5, the included angle α between the first bridging portion 6 and the horizontal plane is not more than 80 degrees, the included angle α between the fifth bridging portion 13 and the horizontal plane is not more than 80 degrees, the horizontal plane is a plane perpendicular to the vertical direction, and by adopting the parameters, the phenomenon of glue dripping of the welding sealant can be avoided.
Preferably, the included angle β between the second lapping part 7 and the horizontal plane is not more than 80 degrees, and the included angle β between the sixth lapping part 14 and the horizontal plane is not more than 80 degrees.
Preferably, a gap L1 between the lower edge of the first overlapping portion 6 and the upper edge of the sixth overlapping portion 14 in the up-down direction is not less than 1mm and not more than 3 mm. Enough space for putting is provided for assembling the boundary beam rear section 1 and the boundary beam front section 2 along the up-down direction, the part is prevented from being put due to the size deviation of the part, and the gap can be sealed by coating glue.
Preferably, the gap L2 in the front-rear direction between the front edge of the second overlapping section 7 and the rear edge of the fifth overlapping section 13 is not less than 10 mm. Enough space for putting is provided for assembling the boundary beam rear section 1 and the boundary beam front section 2 along the up-down direction, the part is prevented from being put due to the size deviation of the part, and the gap can be sealed by coating glue.
Preferably, a gap L3 between the front edge of the first overlapping portion 6 and the front edge of the fifth overlapping portion 13 is not less than 1mm and not more than 3mm, which provides a sufficient space for placing parts for assembling the side sill rear section 1 and the side sill front section 2 in the up-down direction, prevents the parts from being placed due to dimensional deviation of the parts, and can be sealed by coating glue.
Further, the left edge of the first upper side wall 4, the left edge of the first lower side wall 5, the left edge of the second upper side wall 11 and the left edge of the second lower side wall 12 are all provided with flanges. The front end part of the flanging on the front section 1 of the boundary beam is correspondingly lapped with the rear end part of the flanging on the front section 2 of the boundary beam.
As shown in fig. 1 to 3, the side sill rear section 1 and the side sill front section 2 can be assembled by lifting and lowering members in the vertical direction to form the rocker side sill of the automobile. During actual production, the boundary beam rear section 1 and the boundary beam front section 2 can be welded on the two large assemblies respectively, the boundary beam rear section 1 and the boundary beam front section 2 are welded into a whole when the two large assemblies are hoisted and welded in the subsequent assembling process, the large assemblies containing the boundary beam rear section 1 and the large assemblies containing the boundary beam front section 2 can be directly hoisted in the vertical direction to be spliced and welded, and the assembling difficulty is reduced. Set first overlap joint portion 6 and fifth overlap joint portion 13 to down supreme leftward sloping simultaneously, set second overlap joint portion 7 and sixth overlap joint portion 14 to the structure of from last to down leftward sloping, can play certain self-align effect when the tailor-welding, the degree of difficulty of assembly has further been reduced, first overlap joint portion 6 is located the right side of fifth overlap joint portion 13 and second overlap joint portion 7 is located the left side of sixth overlap joint portion 14, realize the lapped structure of staggering, can promote the lapped steadiness between boundary beam back end 1 and the boundary beam anterior segment 2, can also reduce the sealed gluey phenomenon of trickling of appearing of welding, in order to guarantee the leakproofness.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like, which indicate orientations based on coordinate systems in the drawings of the specification, are merely used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (6)
1. An automobile threshold boundary beam which characterized in that: comprises an edge beam rear section (1) and an edge beam front section (2) which are in a U-shaped beam shape, wherein the edge beam rear section (1) comprises a first bottom wall (3) extending along the front-rear direction, a first upper side wall (4) extending leftwards from the upper edge of the first bottom wall (3) and a first lower side wall (5) extending leftwards from the lower edge of the first bottom wall (3), the front end part of the upper half part of the first bottom wall (3) is a first overlapping part (6) extending forwards from the front end part of the lower half part of the first bottom wall (3), the first overlapping part (6) inclines leftwards from bottom to top, the front end part of the lower half part of the first bottom wall (3) is a second overlapping part (7) inclining leftwards from top to bottom, the front end part of the first upper side wall (4) is a third overlapping part (8) extending leftwards from the upper edge of the first overlapping part (6), the front end part of the first lower side wall (5) is a fourth overlapping part (9) extending leftwards from the lower edge of the second overlapping part (7);
the side beam front section (2) comprises a second bottom wall (10), a second upper side wall (11) extending leftwards from the upper edge of the second bottom wall (10) and a second lower side wall (12) extending leftwards from the lower edge of the second bottom wall (10), the rear end part of the upper half part of the second bottom wall (10) is a fifth overlapping part (13) which inclines to the left from bottom to top, the rear end part of the lower half part of the second bottom wall (10) is a sixth bridging part (14) which extends backwards out of the rear end part of the upper half part of the second bottom wall (10), the sixth overlapping part (14) inclines leftwards from top to bottom, the rear end part of the second upper side wall (11) is a seventh overlapping part (15) extending leftwards from the upper edge of the fifth overlapping part (13), the rear end part of the second lower side wall (12) is an eighth overlapping part (16) extending leftwards from the lower edge of the sixth overlapping part (14);
the first lap joint portion (6) and the fifth lap joint portion (13) are superposed and lapped together, and the first lap joint portion (6) is located at the right side of the fifth lap joint portion (13), the second lap joint portion (7) and the sixth lap joint portion (14) are superposed and lapped together, and the second lap joint portion (7) is located at the left side of the sixth lap joint portion (14), the third lap joint portion (8) and the seventh lap joint portion (15) are superposed and lapped together, and the third lap joint portion (8) is located at the upper side of the seventh lap joint portion (15), the fourth lap joint portion (9) and the eighth lap joint portion (16) are superposed and lapped together, and the fourth lap joint portion (9) is located at the upper side of the eighth lap joint portion (16); a welding sealing glue layer is arranged between the first lap joint part (6) and the fifth lap joint part (13); and a welding sealing glue layer is arranged between the second overlapping part (7) and the sixth overlapping part (14).
2. An automobile rocker sill as set forth in claim 1, wherein: the included angle between the first lap joint part (6) and the horizontal plane is less than or equal to 80 degrees, and the included angle between the fifth lap joint part (13) and the horizontal plane is less than or equal to 80 degrees.
3. An automobile rocker sill as set forth in claim 1, wherein: the included angle between the second lapping part (7) and the horizontal plane is less than or equal to 80 degrees, and the included angle between the sixth lapping part (14) and the horizontal plane is less than or equal to 80 degrees.
4. An automobile rocker sill as set forth in claim 1, wherein: the gap between the lower edge of the first overlapping part (6) and the upper edge of the sixth overlapping part (14) in the vertical direction is not less than 1mm and not more than 3 mm.
5. An automobile rocker sill as set forth in claim 1, wherein: the gap between the front edge of the second overlapping part (7) and the rear edge of the fifth overlapping part (13) in the front-rear direction is not less than 10 mm.
6. An automobile rocker sill as set forth in claim 1, wherein: the left edge of the first upper side wall (4), the left edge of the first lower side wall (5), the left edge of the second upper side wall (11) and the left edge of the second lower side wall (12) are all provided with flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457415.6A CN109278874B (en) | 2018-11-30 | 2018-11-30 | Automobile threshold boundary beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457415.6A CN109278874B (en) | 2018-11-30 | 2018-11-30 | Automobile threshold boundary beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278874A CN109278874A (en) | 2019-01-29 |
| CN109278874B true CN109278874B (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811457415.6A Active CN109278874B (en) | 2018-11-30 | 2018-11-30 | Automobile threshold boundary beam |
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| Country | Link |
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| CN (1) | CN109278874B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050070299A (en) * | 2003-12-30 | 2005-07-07 | 한국철도기술연구원 | A robust structure for underframes of railway car bodies |
| EP1880924A2 (en) * | 2006-07-04 | 2008-01-23 | Linde + Wiemann GmbH KG | Beam in the form of a sill or of a transverse member in a motor vehicle |
| CN201317407Y (en) * | 2008-12-19 | 2009-09-30 | 重庆长安汽车股份有限公司 | Interlacing type joining structure for automobile floor edge beams |
| CN204368020U (en) * | 2014-12-30 | 2015-06-03 | 安徽江淮汽车股份有限公司 | A kind of automobile door sill inner panel assembly and automobile |
| CN204937267U (en) * | 2015-09-09 | 2016-01-06 | 北京长城华冠汽车科技股份有限公司 | A kind of floor skirt beam of automobile and automobile |
| KR101714169B1 (en) * | 2015-07-15 | 2017-03-08 | 현대자동차주식회사 | Floor body for vehicle |
| CN207773274U (en) * | 2018-01-30 | 2018-08-28 | 长城汽车股份有限公司 | Preceding floor panel assembly and vehicle |
-
2018
- 2018-11-30 CN CN201811457415.6A patent/CN109278874B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050070299A (en) * | 2003-12-30 | 2005-07-07 | 한국철도기술연구원 | A robust structure for underframes of railway car bodies |
| EP1880924A2 (en) * | 2006-07-04 | 2008-01-23 | Linde + Wiemann GmbH KG | Beam in the form of a sill or of a transverse member in a motor vehicle |
| CN201317407Y (en) * | 2008-12-19 | 2009-09-30 | 重庆长安汽车股份有限公司 | Interlacing type joining structure for automobile floor edge beams |
| CN204368020U (en) * | 2014-12-30 | 2015-06-03 | 安徽江淮汽车股份有限公司 | A kind of automobile door sill inner panel assembly and automobile |
| KR101714169B1 (en) * | 2015-07-15 | 2017-03-08 | 현대자동차주식회사 | Floor body for vehicle |
| CN204937267U (en) * | 2015-09-09 | 2016-01-06 | 北京长城华冠汽车科技股份有限公司 | A kind of floor skirt beam of automobile and automobile |
| CN207773274U (en) * | 2018-01-30 | 2018-08-28 | 长城汽车股份有限公司 | Preceding floor panel assembly and vehicle |
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| Publication number | Publication date |
|---|---|
| CN109278874A (en) | 2019-01-29 |
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