CN115489611A - Method for bonding carbon fiber outer skin and aluminum alloy framework minibus body - Google Patents
Method for bonding carbon fiber outer skin and aluminum alloy framework minibus body Download PDFInfo
- Publication number
- CN115489611A CN115489611A CN202211100704.7A CN202211100704A CN115489611A CN 115489611 A CN115489611 A CN 115489611A CN 202211100704 A CN202211100704 A CN 202211100704A CN 115489611 A CN115489611 A CN 115489611A
- Authority
- CN
- China
- Prior art keywords
- skin
- bonding
- vehicle body
- side wall
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 10
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000009966 trimming Methods 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 230000001502 supplementing effect Effects 0.000 claims abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 9
- 241000252254 Catostomidae Species 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 239000013043 chemical agent Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000005034 decoration Methods 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011152 fibreglass Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B62D25/02—Side panels
-
- 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
- B62D25/06—Fixed roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/026—Connections by glue bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
- B62D29/045—Van bodies composed of substantially rectangular panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D31/00—Superstructures for passenger vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/024—Positioning of sub-units or components with respect to body shell or other sub-units or components
- B62D65/026—Positioning of sub-units or components with respect to body shell or other sub-units or components by using a jig or the like; Positioning of the jig
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention particularly relates to a method for bonding a carbon fiber outer skin and an aluminum alloy framework minibus body, which can ensure the bonding precision and the connection reliability. The bonding method comprises the following steps: s1, designing and manufacturing a bonding tool: designing and manufacturing an integral external bonding tool required by bonding; s2, early preparation: selecting a chemical reagent, determining a bonding gap, perforating and finishing a mounting hole of a skin exterior trimming part, fixing a vehicle body framework, pre-assembling an outer skin and measuring a gap; s3, bonding operation: the method comprises gluing operation, outer skin assembling, clamping and fixing, tightening of an adjusting gasket, glue supplementing and residual glue cleaning. The reliability of bonding of the skin and the framework vehicle body is guaranteed, and the risk that the outer skin falls off in the driving process of the vehicle is reduced. The positioning accuracy of the outer skin relative to the vehicle body framework is guaranteed, and the appearance quality is improved. The outer decoration mounting hole on the skin can be perforated during production of single skin pieces, operation is convenient, and control of perforating precision is facilitated.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a method for bonding a carbon fiber outer skin and an aluminum alloy framework minibus body.
Background
The mini-bus body main body is an aluminum alloy frame type body, and the outer skin is made of carbon fiber and consists of a left side surrounding skin, a right side surrounding skin and a top cover skin. The carbon fiber outer skin and the vehicle body framework are fixed through bonding glue. The bonding strength of the outer skin and the framework vehicle body is related to the safety performance of the whole vehicle, and the connection reliability of the outer skin and the framework vehicle body must be ensured. The outer skin of the car body is an important appearance part covering the outside of the skeleton car body, and the painting of the car body is mainly sprayed on the outer surface of the skin, so the flatness of the surface of the outer skin is an important factor influencing the appearance quality of the car body. In addition, the outer skin is also provided with positioning holes and mounting holes of key exterior trimming parts such as front and rear bumpers, car lamps and the like, and the bonding precision of the outer skin and the skeleton car body directly determines the assembly effect of the car body exterior trimming parts. Therefore, how to ensure the bonding strength and the bonding precision of the outer skin and the skeleton vehicle body is the key point and the difficulty of the vehicle body bonding.
Because the outer covering of carbon fiber does not possess the weldability, current connection scheme is mostly the mode that outer covering is direct and skeleton automobile body bonds, at the vehicle driving process kind, probably appears splitting the phenomenon, causes the covering risk of droing, forms the potential safety hazard.
The existing passenger car bonding method is mainly characterized in that a skin is preassembled on a car body framework, a rubber cushion with the same thickness is used for reserving a gluing distance, a binding band or a clamp is used for tensioning, and bonding is carried out after an interference area is found and polished. Because the aluminum alloy framework vehicle body deforms in the welding process, the carbon fiber outer skin has larger size and lower rigidity, and the skin deforms along with the vehicle body framework after bonding and curing, the bonding precision of the skin is lower in the bonding method, the matching effect between the skin and the skin is difficult to guarantee, and the appearance quality is influenced.
The invention discloses a bonding method in a Chinese patent of 'a method for assembling glass fiber reinforced plastic side skin of a bus' (CN 108639157A), which comprises the following bonding steps:
step 1) early preparation: determining the material and surface treatment mode of the side frame of the car body, and selecting structural adhesive, base coat and cleaning agent;
step 2), preassembling left and right side wall glass fiber reinforced plastic skins;
step 3), preparing a working environment before bonding;
step 4), skeleton checking, cleaning of a glass fiber reinforced plastic skin bonding surface and a vehicle body side wall skeleton bonding surface;
step 5), gluing operation;
step 6), assembling, clamping and fixing the glass fiber reinforced plastic skin;
step 7), glue supplementing and residual glue cleaning;
step 8), drilling and finishing the mounting holes of the exterior trimming parts;
the method is suitable for skin bonding of passenger cars and other cars with straight car body framework structures and low requirements on bonding precision of outer skins. The small bus type is complicated in modeling, the upper vehicle body is provided with bent profiles, and meanwhile, the requirement on appearance quality is high, so that a more accurate and reliable bonding method is needed.
Disclosure of Invention
Aiming at the problems, the invention relates to a method for bonding a carbon fiber outer skin and an aluminum alloy framework vehicle body of a mini-bus vehicle body, which can ensure the bonding precision and the connection reliability.
The bonding method comprises the following steps:
s1, designing and manufacturing a bonding tool: designing and manufacturing an integral external bonding tool required by bonding;
s2, early preparation: selecting a chemical reagent, determining a bonding gap, perforating and finishing a mounting hole of a skin exterior trimming part, fixing a vehicle body framework, pre-assembling an outer skin and measuring a gap;
s3, bonding operation: the method comprises gluing operation, outer skin assembling, clamping and fixing, tightening of an adjusting gasket, glue supplementing and residual glue cleaning.
Further, the integral external bonding tool is composed of four parts, namely a vehicle body floor framework positioning tool, a left side surrounding skin positioning tool, a right side surrounding skin positioning tool and a top cover skin positioning tool.
The principle of the structural form of the vehicle body floor framework positioning tool is the same as that of a floor framework welding tool, and the positioning points are selected to be the same; the left and right side wall skin positioning tool is provided with a processing reference hole, the positioning points of the left and right side wall skin positioning tool are consistent with the reference hole of the side wall skin, the left and right side wall skin positioning tool comprises a plurality of pneumatic suckers and a plurality of outer surface profiling positioning blocks, after the suckers are started, the left and right side wall skin is adsorbed on the profiling blocks, so that the fixation of the side wall skin on the tool is realized, the left and right side wall skin positioning tool is vertical to the vehicle body framework positioning tool, a connecting slide rail is arranged in the middle of the left and right side wall skin positioning tool, the left and right side wall skin positioning tool can be pulled out or pushed in, and when the side wall skin is pushed into a limit position, the left and right side wall skin is an assembly position relative to the vehicle body framework; the principle of the structural form of the top cover skin positioning tool is the same as that of the left and right side surrounding skin positioning tools, so that the top cover skin is positioned and clamped, and the positioning blocks which are embedded with the four corners of the left and right side surrounding skin positioning tools are arranged, so that the positioning accuracy of the top cover skin is ensured.
Further, the chemical reagent selection and the bonding gap are determined according to the materials of the car body framework and the outer skin, the structural adhesive, the bottom coating agent and the cleaning agent are selected, a test sample is manufactured to perform a bonding strength test, and the bonding gap range is determined.
Furthermore, when the skin exterior trimming part mounting hole is opened and repaired, the key hole position uses an opening tool, and the position precision of the hole group with the relative assembly relation is ensured.
Further, the body framework is fixed to drop the body-in-white framework assembly onto a body floor framework tool for positioning and clamping.
Further, the outer skin pre-assembly comprises the following specific steps:
(1) The left side wall skin and the right side wall skin positioning tool slide out, and the left side wall skin and the right side wall skin are preassembled on the positioning tool;
(2) Opening the suction cup, and positioning and clamping the left side and the right side surrounding skins on the tool;
(3) Pushing the left side wall tool and the right side wall tool into assembly positions along the slide rails, checking the matching effect of the left side wall skin and the right side wall skin and the vehicle body framework, and locally grinding the region of the vehicle body framework, which is interfered with the skin;
(4) The top cover skin is positioned and clamped on the top cover skin positioning tool, falls into an assembly position after being lifted, checks the matching effect between the top cover skin and the left and right side wall skins of the vehicle body framework, and locally grinds the region on the vehicle body framework, which is interfered with the outer skin.
Further, the gap measurement is specifically: the connection mode between the outer skin and the vehicle body framework is bonding and assembling, the outer skin and the vehicle body framework are connected through a bonding gasket during bonding, and the thickness of the bonding gasket is determined by measuring the gap between the outer skin and the vehicle body framework; during assembly, the outer skin and the vehicle body framework are connected through the support, the supports are respectively arranged on the outer skin and the vehicle body framework, the gasket is arranged between the supports, and the thickness of the gasket is determined by measuring the gap between the outer skin support and the vehicle body framework support.
Further, the gluing operation is to prepare a bonding pad according to the gap between the outer skin and the vehicle body framework measured in the step S2, and perform pad bonding.
Further, the outer skin assembling, clamping and fixing specifically comprises the steps of assembling, clamping and fixing the left side wall skin and the right side wall skin, pushing the left side wall skin and the right side wall skin to an assembling position, then installing the top cover skin on a tool, hoisting and installing the top cover skin to the assembling position, and realizing the clamping and positioning of 3 pieces of outer skins; and the locking pliers are added at the bonding gasket for supplementary clamping, so that the skin and the framework are bonded in the bonding process, and the locking pliers cannot be added at the position without the bonding gasket for clamping.
Further, in step S3, the tightening of the adjustment gasket is performed by selecting an adjustment gasket having a corresponding thickness according to the gap between the outer skin support and the vehicle body skeleton support measured in step S2, and tightening after assembly.
The invention has the beneficial effects that:
(1) The reliability of bonding of the skin and the framework vehicle body is guaranteed, and the risk that the outer skin falls off in the driving process of the vehicle is reduced.
(2) The positioning accuracy of the outer skin relative to the vehicle body framework is guaranteed, and the appearance quality is improved.
(3) The outer decoration mounting hole on the skin can be perforated during production of single skin pieces, operation is convenient, and control of perforating precision is facilitated.
Drawings
FIG. 1 is a flow chart of a bonding method;
fig. 2 is an assembled connection diagram of an outer skin and a vehicle body framework.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to FIG. 1, a flow chart of the method of the present invention is shown, and the method is described in the following with reference to specific embodiments.
Designing and manufacturing a bonding tool: and designing and manufacturing an integral external bonding tool required by bonding. The integral external bonding tool is composed of four parts, namely a vehicle body floor framework positioning tool, a left side surrounding skin positioning tool, a right side surrounding skin positioning tool and a top cover skin positioning tool.
The principle of the structural form of the vehicle body floor framework positioning tool is the same as that of a floor framework welding tool, and the positioning point is selected to be the same.
The left side and the right side are enclosed and are provided with processing reference holes, the positioning points of the left side and the right side enclosure skin positioning tools are consistent with the reference holes of the side enclosure skin, the left side and the right side enclosure skin positioning tools comprise a plurality of pneumatic suckers and a plurality of outer surface profiling positioning blocks, after the suckers are started, the left side and the right side enclosure skin are adsorbed on the profiling blocks, the fixation of the side enclosure skin on the tools is realized, the left side and the right side enclosure skin positioning tools are perpendicular to the vehicle body framework positioning tool, a connecting slide rail is arranged in the middle of the left side and the right side enclosure skin positioning tools, the left side and the right side enclosure skin tools can be pulled out or pushed in, and when the left side and the right side enclosure skin positioning tools are pushed into a limit position, the assembly positions of the left side and the right side enclosure skin relative to the vehicle body framework are adopted.
The principle of the structural form of the top cover skin positioning tool is the same as that of the left and right side surrounding skin positioning tools, so that the top cover skin is positioned and clamped, and the positioning blocks embedded with the four corners of the left and right side surrounding skin positioning tools are arranged, so that the positioning precision of the top cover skin is ensured.
Chemical agent selection and bonding gap determination: selecting structural adhesive, a primer and a cleaning agent according to the materials of the car body framework and the outer skin, manufacturing a test sample plate, performing a bonding strength test, and determining the range of a bonding gap.
Opening holes and finishing of mounting holes of skin exterior trimming parts: when the skin exterior trimming part mounting holes are opened and repaired, the key hole positions use opening tools, and the position accuracy of hole groups with relative assembly relation is guaranteed.
The car body framework is fixed on the bonding tool: and (4) dropping the white vehicle body framework assembly onto a vehicle body floor framework tool for positioning and clamping.
Pre-assembling an outer skin: the method comprises the following specific steps:
(1) The left side wall skin and the right side wall skin positioning tool slide out, and the left side wall skin and the right side wall skin are preassembled on the positioning tool;
(2) Opening the suction cup, and positioning and clamping the left side and the right side surrounding skins on the tool;
(3) Pushing the left side wall tool and the right side wall tool into an assembly position along a slide rail, checking the matching effect of the left side wall skin and the right side wall skin and the vehicle body framework, and locally polishing the area of the vehicle body framework, which is interfered with the skin;
(4) The top cover skin is positioned and clamped on the top cover skin positioning tool, falls into an assembly position after being lifted, checks the matching effect between the top cover skin and the left and right side wall skins of the vehicle body framework, and locally grinds the region on the vehicle body framework, which is interfered with the outer skin.
And (3) gap measurement: the connection mode between the outer skin and the vehicle body framework is bonding and assembling, the outer skin and the vehicle body framework are connected through a bonding gasket during bonding, and the thickness of the bonding gasket is determined by measuring the gap between the outer skin and the vehicle body framework; during assembly, the outer skin and the vehicle body framework are connected through the support, the supports are respectively arranged on the outer skin and the vehicle body framework, the gasket is arranged between the supports, and the thickness of the gasket is determined by measuring the gap between the outer skin support and the vehicle body framework support.
As shown in figure 2, when the connection mode between the outer skin and the vehicle body framework is assembly, the position 1 of the outer skin is pre-adhered with an aluminum sheet metal support 2 when a workpiece is produced, a hole is formed in the center of the sheet metal support 2, a rivet nut 4 is installed, an L-shaped aluminum support 3 is welded at the position 6 of the vehicle body framework, and a mounting hole is formed in the corresponding position of the L-shaped aluminum support 3. The assembly of the outer skin and the vehicle body frame is realized by tightening the bolts 5.
Need reserve 2mm adjustment clearance between panel beating support 2 and the L shape aluminium support 3, avoid vehicle body skeleton welding deformation back local outer expanding, interfere with outer covering installing support, locally ejecting "swell" with the covering, influence appearance quality. Therefore, the gap between the bracket and the framework installation surface needs to be measured, and the adjusting shim with the proper thickness can be selected to ensure the appearance effect of the skin after assembly. Because the framework and the tool are complex in structure and lack of measuring space, a plasticine clearance measuring method is provided. In the pre-assembly process of the outer skin, plasticine is placed at each mounting bracket position, the tool is pushed to the assembly position and then opened, the depth of a plasticine pit is measured, and an adjusting gasket with the same depth as the pit is selected.
And measuring the gap between the skins in different areas and the bonding surface of the vehicle body framework by using the same method, and preparing bonding gaskets with corresponding thicknesses.
Cleaning an adhesive surface: before bonding, the bonding surface is ensured to be clean and in place without dirt and magazines.
Gluing operation: and preparing a bonding gasket according to the gap between the outer skin and the vehicle body framework measured in the gap measurement, and bonding the gasket.
Assembling, clamping and fixing the outer skin: assembling, clamping and fixing the left side wall skin and the right side wall skin, pushing the side wall skin and the right side wall skin to an assembling position, then assembling the top cover skin on a tool, hoisting and installing the top cover skin to the assembling position, and realizing the clamping and positioning of the 3 outer skins; and the locking pliers are added at the bonding gasket for supplementary clamping, so that the skin and the framework are bonded in the bonding process, and the locking pliers cannot be added at the positions without the bonding gasket for clamping.
Tightening of the adjusting gasket: and selecting an adjusting gasket with corresponding thickness according to the gap between the outer skin support and the vehicle body framework support measured in the gap measuring step, and tightening after assembling.
Repairing glue and cleaning residual glue: and after the bonding is finished, checking, and performing glue supplementing and residual glue cleaning by an operator according to specific conditions.
Claims (10)
1. A bonding method of a carbon fiber outer skin and an aluminum alloy framework minibus body is characterized by comprising the following steps:
s1, designing and manufacturing a bonding tool: designing and manufacturing an integral external bonding tool required by bonding;
s2, early preparation: selecting a chemical reagent, determining a bonding gap, perforating and finishing a mounting hole of a skin exterior trimming part, fixing a vehicle body framework, pre-assembling an outer skin and measuring a gap;
s3, bonding operation: the method comprises the steps of cleaning a bonding surface before bonding, gluing operation, assembling, clamping and fixing an outer skin, tightening an adjusting gasket, glue supplementing and cleaning residual glue.
2. The bonding method according to claim 1, wherein in step S1, the integral external bonding tool is composed of four parts, namely a vehicle body floor framework positioning tool, a left side surrounding skin positioning tool, a right side surrounding skin positioning tool and a top cover skin positioning tool;
the principle of the structural form of the vehicle body floor framework positioning tool is the same as that of a floor framework welding tool, and the positioning points are selected to be the same; the left and right side wall skin positioning tool is provided with a processing reference hole, the positioning points of the left and right side wall skin positioning tool are consistent with the reference hole of the side wall skin, the left and right side wall skin positioning tool comprises a plurality of pneumatic suckers and a plurality of outer surface profiling positioning blocks, after the suckers are started, the left and right side wall skin is adsorbed on the profiling blocks, so that the fixation of the side wall skin on the tool is realized, the left and right side wall skin positioning tool is vertical to the vehicle body framework positioning tool, a connecting slide rail is arranged in the middle of the left and right side wall skin positioning tool, the left and right side wall skin positioning tool can be pulled out or pushed in, and when the side wall skin is pushed into a limit position, the left and right side wall skin is an assembly position relative to the vehicle body framework; the principle of the structural form of the top cover skin positioning tool is the same as that of the left and right side surrounding skin positioning tools, so that the top cover skin is positioned and clamped, and the positioning blocks embedded with the four corners of the left and right side surrounding skin positioning tools are arranged, so that the positioning precision of the top cover skin is ensured.
3. The bonding method according to claim 1, wherein in step S2, the chemical agent is selected and the bonding gap is determined by selecting a structural adhesive, a primer and a cleaning agent according to the materials of the vehicle body framework and the outer skin, and manufacturing a test sample plate to perform a bonding strength test to determine the bonding gap range.
4. The bonding method according to claim 1, wherein in step S2, when the skin exterior trimming member mounting holes are opened and trimmed, a hole opening tool is used for key hole positions, so that the position accuracy of hole groups with relative assembly relation is ensured.
5. The bonding method according to claim 1, wherein in step S2, the body frame is fixed to drop the body-in-white frame assembly onto a body floor frame fixture for positioning and clamping.
6. The bonding method according to claim 1, wherein in step S2, the outer skin is pre-assembled by the specific steps of:
(1) The left side wall skin and the right side wall skin positioning tool slide out, and the left side wall skin and the right side wall skin are preassembled on the positioning tool;
(2) Opening the suction cup, and positioning and clamping the left side and the right side surrounding skins on the tool;
(3) Pushing the left side wall tool and the right side wall tool into assembly positions along the slide rails, checking the matching effect of the left side wall skin and the right side wall skin and the vehicle body framework, and locally grinding the region of the vehicle body framework, which is interfered with the skin;
(4) The top cover skin is positioned and clamped on the top cover skin positioning tool, falls into an assembly position after being lifted, checks the matching effect between the top cover skin and the left and right side wall skins of the vehicle body framework, and locally grinds the region on the vehicle body framework, which is interfered with the outer skin.
7. The bonding method according to claim 1, wherein in step S2, the gap measurement is specifically: the connection mode between the outer skin and the vehicle body framework is bonding and assembling, the outer skin and the vehicle body framework are connected through a bonding gasket during bonding, and the thickness of the bonding gasket is determined by measuring the gap between the outer skin and the vehicle body framework; during assembly, the outer skin and the vehicle body framework are connected through the support, the supports are respectively arranged on the outer skin and the vehicle body framework, the gasket is arranged between the supports, and the thickness of the gasket is determined by measuring the gap between the outer skin support and the vehicle body framework support.
8. The bonding method according to claim 1, wherein in step S3, the glue application operation is performed by preparing a bonding pad according to the gap between the outer skin and the body frame measured in step S2, and bonding the pad.
9. The bonding method according to claim 1, wherein in step S3, the assembling, clamping and fixing of the outer skins comprises assembling, clamping and fixing the left and right side surrounding skins, pushing the left and right side surrounding skins to an assembling position, assembling the top cover skins to a tool, hoisting and installing the top cover skins to the assembling position, and realizing the clamping and positioning of the 3 outer skins; and the locking pliers are added at the bonding gasket for supplementary clamping, so that the skin and the framework are bonded in the bonding process, and the locking pliers cannot be added at the positions without the bonding gasket for clamping.
10. The bonding method according to claim 1, wherein in step S3, the adjusting shim is tightened by selecting the adjusting shim having a thickness corresponding to the gap between the outer skin bracket and the body frame bracket measured in step S2 and tightening the adjusting shim after assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211100704.7A CN115489611B (en) | 2022-09-09 | 2022-09-09 | Bonding method of carbon fiber outer skin and aluminum alloy framework chin car body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211100704.7A CN115489611B (en) | 2022-09-09 | 2022-09-09 | Bonding method of carbon fiber outer skin and aluminum alloy framework chin car body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115489611A true CN115489611A (en) | 2022-12-20 |
| CN115489611B CN115489611B (en) | 2024-08-06 |
Family
ID=84468059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211100704.7A Active CN115489611B (en) | 2022-09-09 | 2022-09-09 | Bonding method of carbon fiber outer skin and aluminum alloy framework chin car body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115489611B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145949A1 (en) * | 1981-11-20 | 1983-06-01 | Bayerische Motoren Werke AG, 8000 München | METHOD AND DEVICE FOR BONDING TWO COMPONENT COMPONENTS ON A LARGE AREA |
| CN101791761A (en) * | 2010-04-07 | 2010-08-04 | 中国航空工业集团公司北京航空制造工程研究所 | Method for compensating for matching surface gap of skeleton and skin of aircraft structure |
| CN206231451U (en) * | 2016-11-30 | 2017-06-09 | 上海卡豹汽车科技有限公司 | A kind of stressed-skin construction of fast assembling-disassembling skin |
| CN107798157A (en) * | 2016-09-07 | 2018-03-13 | 波音公司 | The predictability of joint is had a snack |
| CN207807586U (en) * | 2017-12-26 | 2018-09-04 | 江西洪都商用飞机股份有限公司 | A kind of aircraft skin positioning tooling hole locator |
| CN108502019A (en) * | 2017-02-28 | 2018-09-07 | 上海极能客车动力系统有限公司 | A kind of installation method of car side wall skin |
| CN108569303A (en) * | 2018-05-25 | 2018-09-25 | 株洲时代新材料科技股份有限公司 | A kind of rail vehicle exterior wall method of plate installation |
| CN108639157A (en) * | 2018-05-03 | 2018-10-12 | 金龙联合汽车工业（苏州）有限公司 | A kind of bus fiberglass side skin assembly method |
| CN109664098A (en) * | 2018-12-14 | 2019-04-23 | 中航沈飞民用飞机有限责任公司 | Flexible frock and its assembly technology for aircraft door assembly |
| CN209440052U (en) * | 2018-12-26 | 2019-09-27 | 中兴智能汽车有限公司 | A kind of bus top girth covering orientation installation fixture |
| EP3587251A1 (en) * | 2018-06-28 | 2020-01-01 | BAE SYSTEMS plc | Method and apparatus for producing shims |
| CN112209213A (en) * | 2019-07-12 | 2021-01-12 | 上海申龙客车有限公司 | Novel passenger car body stretch-draw covering hoisting device |
| CN112977676A (en) * | 2021-03-05 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | Aluminum side wall skin assembling device and assembling method |
| CN213799903U (en) * | 2020-11-30 | 2021-07-27 | 奇瑞商用车（安徽）有限公司 | Connection structure of new forms of energy commodity circulation car side wall covering |
| CN214686148U (en) * | 2021-03-19 | 2021-11-12 | 金龙联合汽车工业（苏州）有限公司 | Back encloses skeleton and glass steel covering bonding frock |
| CN215146112U (en) * | 2021-01-07 | 2021-12-14 | 广西汽车集团有限公司 | White automobile body side wall covering welding frock of passenger train |
-
2022
- 2022-09-09 CN CN202211100704.7A patent/CN115489611B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145949A1 (en) * | 1981-11-20 | 1983-06-01 | Bayerische Motoren Werke AG, 8000 München | METHOD AND DEVICE FOR BONDING TWO COMPONENT COMPONENTS ON A LARGE AREA |
| CN101791761A (en) * | 2010-04-07 | 2010-08-04 | 中国航空工业集团公司北京航空制造工程研究所 | Method for compensating for matching surface gap of skeleton and skin of aircraft structure |
| CN107798157A (en) * | 2016-09-07 | 2018-03-13 | 波音公司 | The predictability of joint is had a snack |
| CN206231451U (en) * | 2016-11-30 | 2017-06-09 | 上海卡豹汽车科技有限公司 | A kind of stressed-skin construction of fast assembling-disassembling skin |
| CN108502019A (en) * | 2017-02-28 | 2018-09-07 | 上海极能客车动力系统有限公司 | A kind of installation method of car side wall skin |
| CN207807586U (en) * | 2017-12-26 | 2018-09-04 | 江西洪都商用飞机股份有限公司 | A kind of aircraft skin positioning tooling hole locator |
| CN108639157A (en) * | 2018-05-03 | 2018-10-12 | 金龙联合汽车工业（苏州）有限公司 | A kind of bus fiberglass side skin assembly method |
| CN108569303A (en) * | 2018-05-25 | 2018-09-25 | 株洲时代新材料科技股份有限公司 | A kind of rail vehicle exterior wall method of plate installation |
| EP3587251A1 (en) * | 2018-06-28 | 2020-01-01 | BAE SYSTEMS plc | Method and apparatus for producing shims |
| CN109664098A (en) * | 2018-12-14 | 2019-04-23 | 中航沈飞民用飞机有限责任公司 | Flexible frock and its assembly technology for aircraft door assembly |
| CN209440052U (en) * | 2018-12-26 | 2019-09-27 | 中兴智能汽车有限公司 | A kind of bus top girth covering orientation installation fixture |
| CN112209213A (en) * | 2019-07-12 | 2021-01-12 | 上海申龙客车有限公司 | Novel passenger car body stretch-draw covering hoisting device |
| CN213799903U (en) * | 2020-11-30 | 2021-07-27 | 奇瑞商用车（安徽）有限公司 | Connection structure of new forms of energy commodity circulation car side wall covering |
| CN215146112U (en) * | 2021-01-07 | 2021-12-14 | 广西汽车集团有限公司 | White automobile body side wall covering welding frock of passenger train |
| CN112977676A (en) * | 2021-03-05 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | Aluminum side wall skin assembling device and assembling method |
| CN214686148U (en) * | 2021-03-19 | 2021-11-12 | 金龙联合汽车工业（苏州）有限公司 | Back encloses skeleton and glass steel covering bonding frock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115489611B (en) | 2024-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5795015A (en) | Headliner assembly and locating method | |
| JP2005510407A (en) | MODULE ROOF AND ITS ASSEMBLY METHOD | |
| EP2872377A1 (en) | Vehicle bodywork and method of constructing the vehicle | |
| CN113263743B (en) | Composite material vehicle body assembling and positioning device and assembling process | |
| CN215146112U (en) | White automobile body side wall covering welding frock of passenger train | |
| CN115489611A (en) | Method for bonding carbon fiber outer skin and aluminum alloy framework minibus body | |
| CN110977812B (en) | Glue joint assembly tool for star sensor support and use method | |
| CN113607037B (en) | Utensil is assisted in assembly alignment degree inspection of car back door | |
| CN211364418U (en) | Adjustable iron-embedded part for interior rearview mirror of passenger car | |
| CN217054742U (en) | Hidden door handle mounting structure of car | |
| US11731717B2 (en) | Spacer tool | |
| CN212667487U (en) | Auxiliary frame mounting support structure | |
| CN211248915U (en) | Welding fixture for vehicle tail lamp mounting plate | |
| CN221214333U (en) | New energy automobile front skin installs crossbeam location frock | |
| CN108569303B (en) | railway vehicle external wall panel mounting method | |
| CN218426496U (en) | Portable doorsill decorative plate mounting bracket fixed-position welding tool | |
| CN220481564U (en) | Vehicle glass assembly fixture | |
| CN221984858U (en) | Car body side door adjusting tool | |
| CN214450195U (en) | Automobile rear door outer plate reinforcing structure | |
| CN217146161U (en) | Automobile body top cap crossbeam external member | |
| CN219969592U (en) | Ornamental strip fixed assembly and car | |
| CN215752667U (en) | Instrument board installation mechanism and car | |
| CN220480715U (en) | Frameless car door welding tool | |
| CN220807250U (en) | Detection table for lower inner connecting plate of automobile D column | |
| CN210761059U (en) | Headlamp position installation auxiliary mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |