CN114131252A - Flexible positioning device and positioning method for automobile body exterior trimming part - Google Patents
Flexible positioning device and positioning method for automobile body exterior trimming part Download PDFInfo
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- CN114131252A CN114131252A CN202111451285.7A CN202111451285A CN114131252A CN 114131252 A CN114131252 A CN 114131252A CN 202111451285 A CN202111451285 A CN 202111451285A CN 114131252 A CN114131252 A CN 114131252A
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- movable
- via hole
- positioning
- base plate
- positioning device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicle part assembly, and discloses a flexible positioning device for an exterior trimming part of a vehicle body, which comprises a positioning screw and a nut box, wherein the nut box comprises a fixed part and a movable part movably mounted on the fixed part, the positioning screw penetrates through the fixed part and is mounted on the movable part in a threaded manner, and the end part of the positioning screw penetrates out of the movable part. The invention also discloses a positioning method of the flexible positioning device for the automobile body exterior trimming part. According to the flexible positioning device and the positioning method for the automobile body exterior trimming part, the relative relation between the positioning structure and the hood and the fender is ensured through a set of assembling tool, and further the gap surface difference between the exterior trimming part and the hood and the fender is ensured.
Description
Technical Field
The invention relates to the technical field of vehicle part assembly, in particular to a flexible positioning device and a positioning method for an exterior trimming part of a vehicle body.
Background
With the continuous development of the automobile industry, people have higher and higher requirements on the quality of automobiles and the attractive appearance of automobile bodies. In the production of automobiles, the difference of clearance surfaces between automobile body covering parts and exterior trimming parts is an important index for evaluating the aesthetic degree of an automobile body, and directly influences the appearance of the automobile and the visual perception of consumers. Therefore, it is important to effectively and reliably ensure the gap and the surface difference between the exterior trimming parts of the automobile.
However, in the traditional assembly mode, the difference of the clearance surface between the hood and the fender is ensured by one set of tool in a welding workshop, the difference of the clearance surface between the exterior trimming part and the automobile body covering part is ensured by the other set of tool in a final assembly workshop, and the assembly deviation is large, the precision is low and the reliability is poor due to the fact that two sets of tool sample frames are needed.
Disclosure of Invention
The invention aims to provide a flexible positioning device and a positioning method for an exterior trimming part of a vehicle body, aiming at the defects of the technology, and the relative relation between a positioning structure and a hood and a fender is ensured through a set of assembly tools, so that the clearance surface difference between the exterior trimming part and the hood and the fender is ensured.
In order to achieve the purpose, the flexible positioning device for the automobile exterior trimming part comprises a positioning screw and a nut box, wherein the nut box comprises a fixed part and a movable part movably mounted on the fixed part, the positioning screw penetrates through the fixed part and is mounted on the movable part in a threaded mode, and the end portion of the positioning screw penetrates through the movable part.
Preferably, the fixed part comprises a fixed base plate, a first via hole is formed in the middle of the fixed base plate to ensure that the positioning screw can pass through, two edges of the fixed base plate are bent downwards and inwardly enclose a movable space with the fixed base plate, a second via hole corresponding to the first via hole is formed in the enclosed position, the movable range of the movable part is limited by the second via hole, the movable part is placed in the movable space, the movable part comprises a movable base plate and a cylinder arranged on the lower surface of the movable base plate, the cylinder is positioned in the second via hole to ensure that the cylinder cannot be separated from the mounting part, the minimum width of the movable base plate is greater than the minimum inner diameter of the second via hole, the height of the movable part is greater than the inner height of the movable space to ensure the movable amount of the movable part, and guarantee that the movable part can not deviate from, be equipped with the third via hole on the movable part, the third via hole passes movable bottom plate with the cylinder, the third is downthehole to be equipped with the screw thread, set screw passes first via hole is installed through the screw thread in the third via hole, and stretches out the cylinder.
Preferably, four corners of the upper surface of the fixed bottom plate are respectively provided with a salient point for welding with a vehicle body.
Preferably, an upper end portion of the third via hole is provided with a chamfer.
Preferably, four corners of the lower surface of the movable bottom plate are provided with protrusions, so that the movable part is ensured to move smoothly and is not clamped.
Preferably, the set screw is a rifled screw.
The positioning method of the flexible positioning device for the exterior trimming part of the automobile body is characterized in that the upper surfaces of a plurality of nut boxes are welded on the automobile body, the positions of the movable parts are finely adjusted to realize the adjustment of the positions of the positioning screws, and after the positioning is finished, the positioning screws are tightened through a tool and fixed on the nut boxes, so that the tightened positioning screws form a set of positioning system and are used for positioning the exterior trimming part of the automobile body.
Preferably, the fixed part comprises a fixed base plate, a first via hole is formed in the middle of the fixed base plate to ensure that the positioning screw can pass through, two edges of the fixed base plate are bent downwards and inwardly enclose a movable space with the fixed base plate, a second via hole corresponding to the first via hole is formed in the enclosed position, the movable range of the movable part is limited by the second via hole, the movable part is placed in the movable space, the movable part comprises a movable base plate and a cylinder arranged on the lower surface of the movable base plate, the cylinder is positioned in the second via hole to ensure that the cylinder cannot be separated from the mounting part, the minimum width of the movable base plate is greater than the minimum inner diameter of the second via hole, the height of the movable part is greater than the inner height of the movable space to ensure the movable amount of the movable part, and guarantee that the movable part can not deviate from, be equipped with the third via hole on the movable part, the third via hole passes movable bottom plate with the cylinder, the third is downthehole to be equipped with the screw thread, set screw passes first via hole is installed through the screw thread in the third via hole, and stretches out the cylinder.
Preferably, four corners of the upper surface of the fixed base plate are respectively provided with a convex point for welding with a vehicle body, and the nut box is welded on the vehicle body through the convex points.
Preferably, the upper end part of the third via hole is provided with a chamfer, and four corners of the lower surface of the movable bottom plate are provided with protrusions, so that the movable part is ensured to move smoothly without being clamped.
Compared with the prior art, the invention has the following advantages:
1. the flexible positioning structure is used, and the movable structure is used for mounting and positioning the final assembly exterior trimming part, so that the final assembly tool can be saved, the operation mode is simplified, and the assembly time is shortened;
2. through the flexible positioning structure, the position of the positioning structure and the positions of the welding hood and the fender are ensured through the welding sample piece, so that the clearance surface difference between the final assembly exterior trimming part and the hood and the fender is ensured, the process is completed under one set of tooling sample piece, the relative position between parts is more accurate and reliable, and the clearance surface difference is easier to ensure;
3. the outer decoration piece of the assembly is positioned through the flexible positioning structure, and the position of the outer decoration piece of the assembly can be adjusted by adjusting the position of the positioning structure, so that the operation is more convenient;
4. when the automobile body exterior trimming part needs to adjust the adaptation clearance, the positioning screw can be directly loosened, the proper position is adjusted, the positioning screw is tightened again, the adjustment amount can be determined by comparing the positions of the positioning screw before and after adjustment, and the adjustment amount is used for adjusting the welding sample pieces, so that the batch adjustment of the automobile body is realized.
Drawings
FIG. 1 is a schematic structural view of a flexible positioning device for exterior body trim according to the present invention;
FIG. 2 is a longitudinal cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the nut box of FIG. 1;
FIG. 4 is a bottom view of FIG. 3;
FIG. 5 is a schematic view of the positioning of the flexible positioning device for exterior body trim according to the present invention after installation.
The components in the figures are numbered as follows:
the water tank comprises a positioning screw 1, a nut box 2, a fixed part 3, a movable part 4, a fixed base plate 5, a first through hole 6, a movable space 7, a second through hole 8, a movable base plate 9, a column 10, a third through hole 11, threads 12, salient points 13, chamfers 14, protrusions 15, a front panel supporting plate 16, a water tank panel 17 and a front protective framework 18.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in FIG. 1, the flexible positioning device for the exterior trimming part of the vehicle body comprises a positioning screw 1 and a nut box 2, wherein the nut box 2 comprises a fixed part 3 and a movable part 4 movably mounted on the fixed part 3, the positioning screw 1 penetrates through the fixed part 3 and is mounted on the movable part 4 in a threaded manner, and the end part of the positioning screw 1 penetrates through the movable part 4.
As shown in fig. 2, 3 and 4, the fixing part 3 includes a fixing base plate 5, a first through hole 6 is opened in the middle of the fixing base plate 5, two sides of the fixing base plate 5 are bent downward and inwardly enclose a movable space 7 with the fixing base plate 5, a second through hole 8 corresponding to the first through hole 6 is opened at the enclosed position, the movable part 4 is placed in the movable space 7, the movable part 4 includes a movable base plate 9 and a column 10 installed on the lower surface of the movable base plate 9, the column 10 is located in the second through hole 8, the minimum width of the movable base plate 9 is greater than the minimum inner diameter of the second through hole 8, the height of the movable part 4 is greater than the inner height of the movable space 7, a third through hole 11 is provided on the movable part 4, the third through hole 11 passes through the movable base plate 9 and the column 10, a thread 12 is provided in the third through hole 11, the positioning screw 1 passes through the first through hole 6 and is installed in the third through thread 12, and protrudes out of the cylinder 10.
In addition, in this embodiment, four corners of the upper surface of the fixed base plate 5 are respectively provided with a bump 13, the nut box 2 is welded on the vehicle body through the bumps 13, the upper end portion of the third through hole 11 is provided with a chamfer 14, four corners of the lower surface of the movable base plate 9 are respectively provided with a protrusion 15, and the positioning screw 1 is an internal pattern screw.
When the flexible positioning device for the automobile body exterior trimming part is used, the upper surfaces of the plurality of nut boxes 2 are welded on an automobile body, the positions of the movable parts 4 are finely adjusted, and after positioning is completed, the positioning screws 1 are tightened through the tool and fixed on the nut boxes 2, so that the tightened positioning screws 1 form a set of positioning system and are used for positioning the bumper exterior trimming part.
For example, the upper surfaces of two nut boxes 2 can be welded on a front panel supporting plate 16, the position of the movable part 4 is finely adjusted, after positioning is completed, the positioning screw 1 is tightened through a tool and fixed on the nut boxes 2, so that the tightened positioning screw 1 forms a set of positioning system which is used for positioning the installation of the water tank panel 17, the front protective framework 18 is fixed on the water tank panel 17, and the front protective framework 18 is fixed on the front protective framework 18, thereby ensuring the clearance surface difference of the front fender, the front hood and the front fender.
According to the flexible positioning device and the positioning method for the automobile body exterior trimming part, the flexible positioning structure is used, and the movable structure is used for mounting and positioning the final assembly exterior trimming part, so that the final assembly tool can be omitted, the operation mode is simplified, and the assembly time is shortened; through the flexible positioning structure, the position of the positioning structure and the positions of the welding hood and the fender are ensured through the welding sample piece, so that the clearance surface difference between the final assembly exterior trimming part and the hood and the fender is ensured, the process is completed under one set of tooling sample piece, the relative position between parts is more accurate and reliable, and the clearance surface difference is easier to ensure; the outer decoration piece of the assembly is positioned through the flexible positioning structure, and the position of the outer decoration piece of the assembly can be adjusted by adjusting the position of the positioning structure, so that the operation is more convenient; and when the automobile body exterior trimming part needs to adjust the adaptive gap, the positioning screws 1 can be directly loosened, adjusted to proper positions, and the positioning screws 1 are tightened again, so that the adjustment amount can be determined compared with the positions of the positioning screws 1 before and after adjustment, and the adjustment amount is used for adjusting the welding sample pieces, thereby realizing the batch adjustment of the automobile body. Compared with the traditional mode, one set of tool sample frame is reduced, the assembly deviation is smaller, the precision is higher, the repeatability is better, and the reliability is higher.
Claims (10)
1. The utility model provides a flexible positioner of automobile body exterior trim, includes set screw (1), its characterized in that: the nut box (2) comprises a fixed part (3) and a movable part (4) movably mounted on the fixed part (3), the positioning screw (1) penetrates through the fixed part (3) and is mounted on the movable part (4) in a threaded mode, and the end portion of the positioning screw (1) penetrates out of the movable part (4).
2. The flexible positioning device for an exterior body trim according to claim 1, wherein: the fixed part (3) comprises a fixed base plate (5), a first via hole (6) is formed in the middle of the fixed base plate (5), two edges of the fixed base plate (5) are bent downwards and inwards enclosed to form a movable space (7) with the fixed base plate (5), a second via hole (8) corresponding to the first via hole (6) is formed in the enclosed position, the movable part (4) is placed in the movable space (7), the movable part (4) comprises a movable base plate (9) and a cylinder (10) installed on the lower surface of the movable base plate (9), the cylinder (10) is located in the second via hole (8), the minimum width of the movable base plate (9) is greater than the minimum inner diameter of the second via hole (8), the height of the movable part (4) is greater than the inner height of the movable space (7), a third via hole (11) is formed in the movable part (4), the third via hole (11) passes the movable bottom plate (9) and the column body (10), a thread (12) is arranged in the third via hole (11), the positioning screw (1) passes through the first via hole (6), is installed in the third via hole (11) through the thread (12), and extends out of the column body (10).
3. The flexible positioning device for exterior body trim according to claim 2, wherein: and four corners of the upper surface of the fixed bottom plate (5) are respectively provided with a salient point (13).
4. The flexible positioning device for exterior body trim according to claim 2, wherein: and the upper end part of the third through hole (11) is provided with a chamfer (14).
5. The flexible positioning device for exterior body trim according to claim 2, wherein: bulges (15) are arranged at four corners of the lower surface of the movable bottom plate (9).
6. The flexible positioning device for exterior body trim according to claim 2, wherein: the positioning screw (1) is an internal pattern screw.
7. A positioning method of a flexible positioning device for exterior body trim according to claim 1, characterized in that: welding a plurality of upper surfaces of the nut boxes (2) on a vehicle body, finely adjusting the positions of the movable parts (4), tightening the positioning screws (1) through a tool after positioning is completed, and fixing the positioning screws on the nut boxes (2), so that the tightened positioning screws (1) form a set of positioning system for positioning the bumper exterior trimming part.
8. The positioning method of the flexible positioning device for exterior body trim according to claim 7, wherein: the fixed part (3) comprises a fixed base plate (5), a first via hole (6) is formed in the middle of the fixed base plate (5), two edges of the fixed base plate (5) are bent downwards and inwards enclosed to form a movable space (7) with the fixed base plate (5), a second via hole (8) corresponding to the first via hole (6) is formed in the enclosed position, the movable part (4) is placed in the movable space (7), the movable part (4) comprises a movable base plate (9) and a cylinder (10) installed on the lower surface of the movable base plate (9), the cylinder (10) is located in the second via hole (8), the minimum width of the movable base plate (9) is greater than the minimum inner diameter of the second via hole (8), the height of the movable part (4) is greater than the inner height of the movable space (7), a third via hole (11) is formed in the movable part (4), the third via hole (11) passes the movable bottom plate (9) and the column body (10), a thread (12) is arranged in the third via hole (11), the positioning screw (1) passes through the first via hole (6), is installed in the third via hole (11) through the thread (12), and extends out of the column body (10).
9. The positioning method of the flexible positioning device for exterior body trim according to claim 8, wherein: the nut box is characterized in that four corners of the upper surface of the fixed bottom plate (5) are respectively provided with a salient point (13), and the nut box (2) is welded on the vehicle body through the salient points (13).
10. The positioning method of the flexible positioning device for exterior body trim according to claim 8, wherein: the upper end part of the third via hole (11) is provided with a chamfer (14), four corners of the lower surface of the movable bottom plate (9) are provided with bulges (15), and the positioning screw (1) is an internal pattern screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451285.7A CN114131252A (en) | 2021-12-01 | 2021-12-01 | Flexible positioning device and positioning method for automobile body exterior trimming part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451285.7A CN114131252A (en) | 2021-12-01 | 2021-12-01 | Flexible positioning device and positioning method for automobile body exterior trimming part |
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| Publication Number | Publication Date |
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| CN114131252A true CN114131252A (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111451285.7A Pending CN114131252A (en) | 2021-12-01 | 2021-12-01 | Flexible positioning device and positioning method for automobile body exterior trimming part |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006032006A1 (en) * | 2006-07-10 | 2008-01-24 | Volkswagen Ag | Fastener for roof railing at motor vehicle body, has retainer provided with welding lug for welding with motor vehicle body, where retainer is provided with elongated mounting hole and arranged in preset assembly position |
| EP1892160A2 (en) * | 2006-08-26 | 2008-02-27 | GM Global Technology Operations, Inc. | Method and device for fitting an airbag on a motor vehicle |
| CN201367052Y (en) * | 2009-02-18 | 2009-12-23 | 上海世科嘉车辆技术研发有限公司 | Structure for mounting and fixing automobile plastic fender |
| CN209956081U (en) * | 2019-03-04 | 2020-01-17 | 北京汽车股份有限公司 | Fender installing support, fender installation assembly and vehicle |
| CN210047545U (en) * | 2019-05-31 | 2020-02-11 | 浙江吉利控股集团有限公司 | Fixing structure of automobile fender |
-
2021
- 2021-12-01 CN CN202111451285.7A patent/CN114131252A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006032006A1 (en) * | 2006-07-10 | 2008-01-24 | Volkswagen Ag | Fastener for roof railing at motor vehicle body, has retainer provided with welding lug for welding with motor vehicle body, where retainer is provided with elongated mounting hole and arranged in preset assembly position |
| EP1892160A2 (en) * | 2006-08-26 | 2008-02-27 | GM Global Technology Operations, Inc. | Method and device for fitting an airbag on a motor vehicle |
| CN201367052Y (en) * | 2009-02-18 | 2009-12-23 | 上海世科嘉车辆技术研发有限公司 | Structure for mounting and fixing automobile plastic fender |
| CN209956081U (en) * | 2019-03-04 | 2020-01-17 | 北京汽车股份有限公司 | Fender installing support, fender installation assembly and vehicle |
| CN210047545U (en) * | 2019-05-31 | 2020-02-11 | 浙江吉利控股集团有限公司 | Fixing structure of automobile fender |
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