CN101664998A - Hot air bending rivet welding machine and welding method used in automotive exterior trimming plastic parts - Google Patents

Hot air bending rivet welding machine and welding method used in automotive exterior trimming plastic parts Download PDF

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Publication number
CN101664998A
CN101664998A CN200810042529A CN200810042529A CN101664998A CN 101664998 A CN101664998 A CN 101664998A CN 200810042529 A CN200810042529 A CN 200810042529A CN 200810042529 A CN200810042529 A CN 200810042529A CN 101664998 A CN101664998 A CN 101664998A
Authority
CN
China
Prior art keywords
welding
welding machine
weldering muscle
welding method
hot air
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.)
Pending
Application number
CN200810042529A
Other languages
Chinese (zh)
Inventor
陆卫峰
陈志光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Original Assignee
Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd filed Critical Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Priority to CN200810042529A priority Critical patent/CN101664998A/en
Priority to PCT/CN2009/073767 priority patent/WO2010025687A1/en
Publication of CN101664998A publication Critical patent/CN101664998A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars

Abstract

The invention relates to a special welding method and a welding machine design used between automotive exterior trimming plastic parts. A welding object of the welding machine is the same as an ordinary rivet welding part, but can be bent to fasten a workpiece instead of generating a mushroom head. The welding machine adopts hot air welding machine principle to only bake the local part of a single-edge welding bar to a softening temperature by concentrating hot air, adopts a special welding head, and simultaneously pushes the welding head to bend to the side required by a scheduled design in the pressing process. The bent welding bar can be welded and fused to another workpiece or only be bent and pressed to another workpiece tightly according to different requirements. The welding methodcan be adopted to provide appearance requirements of the parts in the special field that the generation of the mushroom heads causing the visible welding marks is avoided.

Description

The hot air bending rivet welding machine and the welding method that are used for automotive exterior trimming plastic parts
Technical field
The present invention relates to the Plastic Welding field, be specifically related to a kind of hot air bending rivet welding machine and welding method that is used for automotive exterior trimming plastic parts.
Background technology
At present automobile function is more and more, and modular mode of supplly, also integrated increasing part on the bumper exterior trim assembly before and after making.Because welding can be increased work efficiency, provide more reliable and more stable fastening effect and abundant design freedom.So except traditional clamping, screw, fastening assembling modes such as adhesive tape bonding, welding is applied on the exterior trim assembly bonding more and more.For the particular appearance requirement of exterior trimming parts,, then weld this mode and just be in excessive risk, unacceptable bonding mode if solder joint is in soldered part edge or the visible position of oblique angle outward appearance.In order to enlarge application, increase design freedom, pressing for increases a kind of both available welding, avoids visible welding manner of outward appearance or soldering appliance again.
Summary of the invention
Technical problem to be solved by this invention provides a kind of hot air bending rivet welding machine and welding method that is used for automotive exterior trimming plastic parts, and it is compared with common welding, but the welding object of a bending and fastening workpiece can be provided, but not produces a mushroom head.
In order to solve above technical problem, the invention provides a kind of hot air bending rivet welding machine that is used for automotive exterior trimming plastic parts, it comprises the weldering muscle of a prolate type, a rhombus soldering tip and a hair-dryer.The present invention also provides a kind of welding method, comprises the steps:
Step 1, will weld muscle and insert need in the grid of welding;
Step 2, hair-dryer is placed the sidepiece of weldering muscle, blow the hot blast of temperature and constant flow rate within a certain period of time;
Step 3, press down the weldering muscle that cant need bend, make the bending of described weldering muscle wide-angle with the rhombus soldering tip.
Wherein, the described certain hour of step 2, temperature and flow velocity and the described time of pressing down of step 3 can be adjusted according to the base material of part plastics is different.
The hot blast that blows in step 2 is that toast near grid upper surface place the bottom of aiming at described weldering muscle.
After the hot blast that step 2 blows need make the sidepiece of described weldering muscle reach the softening temperature of these plastics, carry out the operation of step 3 again.
The angular range of the described wide-angle of step 3 can for 60 spend to 100 the degree.
Hot air bending rivet welding machine and the welding method that is used for automotive exterior trimming plastic parts of the present invention can reach following technique effect: but the also welding object of fastening workpiece of a bending can be provided, but not produce a mushroom head, the appearance requirement of part at special dimension can be provided, avoid mushroom head and make weld mark as seen.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a welding schematic diagram of the present invention;
Fig. 2 is the front view of the grid assembly used of the present invention;
Fig. 3 is the vertical view of the grid assembly used of the present invention;
Fig. 4 is the schematic diagram of weldering muscle bending on grid of part of the present invention;
Fig. 5 is the schematic diagram that the weldering muscle of the part of routine welds.
Reference numeral is among the figure: 1, weldering muscle; 2, rhombus soldering tip; 3, hair-dryer.
The specific embodiment
According to Fig. 1 to Fig. 5, provide embodiments of the invention below, allow to understand better function of the present invention and characteristics.
In conjunction with Fig. 1 and shown in Figure 3, the hot air bending rivet welding machine that is used for automotive exterior trimming plastic parts of the present invention comprises three assemblies: weldering muscle 1, the one rhombus soldering tip 2 and a hair-dryer 3 of a prolate type.
On the part of non-elongated type, if the edge need connect another part, the weldering muscle 1 that can design the prolate type is to be used for connection, and the cross section of this prolate type weldering muscle 1 can be an arbitrary shape.
This rhombus soldering tip 2 in order to press down this weldering muscle 1 from oblique F direction so that this weldering muscle 1 to a lateral buckling.
This hair-dryer 3 is used to add the position that needs bending of hot weld muscle 1, so that this position reaches the softening temperature of these plastics.
Fig. 2 is straight waterfall formula grid front view, and Fig. 3 is its vertical view, has designed a web plate structure behind at grid, and design is connected web plate with welding with grid.Can only adopt rivet welding connection because structure is limit, and all rivet welding muscle 1 also can only be arranged on the edge of part, will produce a mushroom head as shown in Figure 5, can cause open defect like this, thereby part can not be accepted according to traditional rivet welding mode.
Analyze welding method of the present invention in conjunction with Fig. 1 again:
The part that at first will have prolate type weldering muscle 1 inserts in the grid, weldering muscle 1 is against a side of grid hole wall, hair-dryer 3 is placed the opposite side of this hole wall, and to the hot blast of weldering muscle 1 delivery temperature and constant flow rate, and can regulate the temperature of this hair-dryer 3 and the flow velocity of hot blast according to the difference of the plastic basis material of different parts.This hair-dryer 3 should be aimed at the bottom of weldering muscle 1 and blow near grid upper surface place.
When this position that need bend reaches the glass transition temperature of these plastics, slowly press down this weldering muscle 1 with rhombus soldering tip 2 from oblique F direction, this weldering muscle 1 is bent to opposite side, because kink reaching glass transition temperature, thereby can make pressing down of this soldering tip 2 become easily and easy damaged weldering muscle 1 not under the heating of hair-dryer 3.This soldering tip 2 also can have heating function as required so that the process that presses down is carried out smoothly.For different parts and different weldering muscle 1 designs, hot air bending rivet welding machine of the present invention can be realized the bending of wide-angle, can be with bending angle from the 60-100 degree, and the best is 90 degree.
Hot air bending rivet welding machine of the present invention can be according to different requirements, the weldering muscle pressure welding of bending is fused on another workpiece, or just crooked and another Work-sheet pressing.Adopt this welding method that the appearance requirement of part at special dimension can be provided, promptly avoided mushroom head and make weld mark as seen.
To the description of example, so that any technical staff in this area can use or utilize the present invention.To this embodiment, those skilled in the art can make various modifications or conversion on the basis that does not break away from the principle of the invention.Should be appreciated that these modifications or change and do not break away from protection scope of the present invention.

Claims (8)

1, a kind of hot air bending rivet welding machine that is used for automotive exterior trimming plastic parts is characterized in that, comprises the weldering muscle of a prolate type, a rhombus soldering tip and a hair-dryer.
2, rivet welding machine as claimed in claim 1 is characterized in that, described rhombus soldering tip can have heating function.
3, rivet welding machine as claimed in claim 1 is characterized in that, the cross section of the weldering muscle of described prolate type is an arbitrary shape.
4, a kind of welding method comprises the steps:
Step 1, will weld muscle and insert need in the grid of welding;
Step 2, hair-dryer is placed the sidepiece of weldering muscle, blow the hot blast of temperature and constant flow rate;
Step 3, press down the weldering muscle that cant need bend, make the bending of described weldering muscle wide-angle with the rhombus soldering tip.
5, welding method as claimed in claim 4 is characterized in that, the described temperature of step 2 is adjusted according to the base material of part plastics is different with flow velocity.
6, welding method as claimed in claim 4 is characterized in that, the angular range of the described wide-angle of step 3 be 60 spend to 100 the degree.
7, welding method as claimed in claim 4 is characterized in that, the hot blast that blows in step 2 is to blow near grid upper surface place in the bottom of aiming at described weldering muscle.
8, welding method as claimed in claim 4 is characterized in that, after the hot blast that step 2 blows need make the sidepiece of described weldering muscle reach the glass transition temperature of these plastics, carries out the operation of step 3 again.
CN200810042529A 2008-09-04 2008-09-04 Hot air bending rivet welding machine and welding method used in automotive exterior trimming plastic parts Pending CN101664998A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200810042529A CN101664998A (en) 2008-09-04 2008-09-04 Hot air bending rivet welding machine and welding method used in automotive exterior trimming plastic parts
PCT/CN2009/073767 WO2010025687A1 (en) 2008-09-04 2009-09-04 Hot wind bending welding machine for exterior decorative plastic parts of motorcars and a welding method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810042529A CN101664998A (en) 2008-09-04 2008-09-04 Hot air bending rivet welding machine and welding method used in automotive exterior trimming plastic parts

Publications (1)

Publication Number Publication Date
CN101664998A true CN101664998A (en) 2010-03-10

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WO (1) WO2010025687A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102233675A (en) * 2010-04-28 2011-11-09 上海三槐科技有限公司 Welding method of aluminum-plastic overall-plastic composite flexible tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853669A (en) * 1972-08-28 1974-12-10 P Werstlein Welding tip for plastic welding gun
CN86210101U (en) * 1986-12-13 1988-03-16 李国常 Low-voltage direct-geated electric iron
JP3388939B2 (en) * 1995-04-11 2003-03-24 タキロン株式会社 Hot air welding of synthetic resin molded products
US5656126A (en) * 1996-02-05 1997-08-12 Martinez; Leo Heat welding accessories

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102233675A (en) * 2010-04-28 2011-11-09 上海三槐科技有限公司 Welding method of aluminum-plastic overall-plastic composite flexible tube

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WO2010025687A1 (en) 2010-03-11

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Application publication date: 20100310