CN108453457A - The welding method of automobile rear left seat back skeleton - Google Patents
The welding method of automobile rear left seat back skeleton Download PDFInfo
- Publication number
- CN108453457A CN108453457A CN201810345120.3A CN201810345120A CN108453457A CN 108453457 A CN108453457 A CN 108453457A CN 201810345120 A CN201810345120 A CN 201810345120A CN 108453457 A CN108453457 A CN 108453457A
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- Prior art keywords
- welding
- plate
- compressing unit
- backrest
- steel wire
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003818 cinder Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 25
- 210000000988 bone and bone Anatomy 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of welding methods of automobile rear left seat back skeleton, are related to field of automobile；Include the following steps：A, welding fixture is made；B, it assembles：The part of backrest frames is assembled as required；C, spot welding：By the part of assembled backrest frames successively spot welding；D, turn sequence：The backrest frames that spot welding is completed are turned into sequence to welding post；E, it welds：The part of backrest frames is welded；F, scarfing cinder is examined：The backrest frames for completing welding are subjected to scarfing cinder and are examined.The present invention can solve the problems, such as that the existing positioning of the welding method of current automobile rear left seat back skeleton, hold-down mechanism are unreasonable.
Description
Technical field
It is especially a kind of for seat back-rest framework on the left of welding of automotive heel row the present invention relates to field of automobile
Tooling.
Background technology
Seat is an essential component on automobile, it is mainly made of backrest and seat cushion, and backrest is then by leaning on
The compositions such as spine frame, foamed material and fabric；Seat back-rest framework is by skeleton bend pipe, framework straight pipe, lower steel wherein on the left of heel row
The parts group such as silk, foot hinge metal plate, upper steel wire and headrest guide sleeve pipe is welded, and is wanted for these parts groups are welded into the technology of meeting
The skeleton asked needs to use a kind of welding method, will pass through primary assembling and primary welding, obtains one and qualified leans on spine
Frame；Currently, the welding method generally use of backrest frames be multi-process substep welding, the welding fixture quantity needed
More, backrest frames post welding distortion is larger, cannot be satisfied the requirement in terms of technical quality and low production efficiency.
Invention content
The object of the present invention is to provide a kind of welding methods of automobile rear left seat back skeleton, it can solve mesh
Backrest frames post welding distortion is larger existing for the welding method of preceding automobile rear left seat back skeleton, cannot be satisfied technology matter
The problem of in terms of amount and low production efficiency.
To solve the above-mentioned problems, the technical solution adopted by the present invention is：
The welding method of this automobile rear left seat back skeleton, includes the following steps：
A, welding fixture is made：Design and produce a kind of automobile rear left seat back skeleton welding fixture, this welding fixture
Including bottom plate, lower steel wire compressing unit, foot hinge metal plate compressing unit, upper steel wire support seat, bone are respectively equipped on the bottom plate
Frame frame compressing unit and headrest guide sleeve pipe compressing unit；
B, it assembles：Before assembling, first the bottom plate of welding fixture 1 is fixed on assembling station；Backrest bend pipe, backrest straight tube are placed
In the supporting groove of the skeleton frame compressing unit；By headrest guide sleeve pipe sleeve to the positioning of the headrest guide sleeve pipe compressing unit
On axis and positioning key；Foot is hinged metal plate to be fixed on the backrest straight tube by the foot hinge metal plate compressing unit；By institute
Steel wire is stated to be fixed on the backrest bend pipe by the upper steel wire support seat；The lower steel wire is passed through into the lower steel wire pressure
Tight unit is fixed on the backrest straight tube；The briquetting of each unit is compressed, by the push-tight forward of each handle；
C, spot welding：Backrest bend pipe described in spot welding, the backrest straight tube, the headrest guide sleeve pipe, the foot are hinged metal plate, institute successively
State steel wire and the lower steel wire；
D, turn sequence：The backrest frames that group welds are exited from the welding fixture, then turn sequence to welding post；
E, it welds：Successively to the backrest bend pipe and backrest straight tube, the upper steel wire and the backrest bend pipe, the headrest
Guide thimble and the backrest bend pipe, the foot hinge metal plate and the backrest straight tube, the lower steel wire and the backrest straight tube into
Row welding；
F, scarfing cinder is examined：The backrest frames for completing welding are subjected to scarfing cinder, are finally tested.
In above technical scheme, further embodiment can be：The welding fixture of the step B includes the lower steel
Silk compressing unit, the lower steel wire compressing unit include the first mounting base and are located at the first bearing of first mounting base front
Column, first mounting base are equipped with bearing, and the bearing is equipped with and holds down assembly, described to hold down assembly including the first pressing
Block, first briquetting are connect by linking arm with pressure arm, and the head of the pressure arm is equipped with the first hold-down head；The linking arm
Hinged by hinged shaft and the bearing, first hold-down head is corresponding with first support column.
Further：The welding fixture of the step B includes the foot hinge metal plate compressing unit, the foot hinge
Metal plate compressing unit includes column, and the first positioning seat, the side of the column and first positioning seat are equipped with by the column
Equipped with third mounting base, the third mounting base is equipped with the positioning pin controlled by handle；The positioning pin passes through institute
State the through-hole on the first positioning seat；The side of the column is equipped with the second mounting base, and second is hinged in second mounting base
It holds down assembly, described second holds down assembly including linking arm, and one end of the linking arm connects the second hold-down head, and the other end connects
The second briquetting is connect, second hold-down head is corresponding with the positioning pin.
Further：The welding fixture of the step B includes the skeleton frame compressing unit, and the skeleton frame compresses
Unit includes several supporting grooves being located on the bottom plate, and the shape of supporting groove is U-shaped, by the supporting groove also at least
Equipped with two the second positioning seats, the third by the supporting groove at least provided with two or more holds down assembly, and the third compresses
Component includes the second support column, and second support column is equipped with the 4th mounting base, and the 4th mounting base is pressed equipped with third
Pressure head, the third press head are connect by connector with third briquetting, the other end of the connector be connected with third by
Briquetting.
Further：The welding fixture of the step B includes the headrest guide sleeve pipe compressing unit, and the headrest is led
Casing compressing unit includes support plate, and the support plate is located on the bottom plate, and the support plate is equipped with the peace set up vertically
Loading board, the mounting plate are equipped with horizontal universal driving shaft by sliding eye, and the universal driving shaft is controlled by second handle；The universal driving shaft
Front end be connected with movable plate, the front end of the movable plate is connected with horizontal locating shaft, and the locating shaft is equipped with positioning key；
The locating shaft is corresponding with the third positioning seat being located on the bottom plate；The lower edge of the movable plate is equipped with horizontal guiding support
Plate, the guiding supporting plate are connect with the mounting plate；The both sides of the universal driving shaft are respectively equipped with guiding axis, and the one of the guiding axis
End connects the movable plate, and the other end passes through the pilot hole on the mounting plate.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1, the present invention makes automobile back skeleton weld by designing a kind of automobile rear left seat back skeleton welding fixture
Before obtain accurate positioning and clamping, and obtain qualified backrest frames in primary assembling and welding；
2, automobile rear left-side seat welding fixture positioning setting of the present invention is reasonable, and clamping device is reliable, makes automobile
Backrest frames welding procedure assembling procedure and welding sequence are simplified, and are greatly improved production efficiency and quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of lower steel wire compressing unit.
Fig. 3 is the structural schematic diagram of foot hinge metal plate compressing unit.
Fig. 4 is the structural schematic diagram of skeleton frame compressing unit.
Fig. 5 is the structural schematic diagram of headrest guide sleeve pipe compressing unit.
Fig. 6 is the structural schematic diagram when assembled of the present invention.
Specific implementation mode
The present invention is further described with reference to the accompanying drawings and examples：
Automobile rear left seat back skeleton as shown in FIG. 6, by skeleton bend pipe 8, framework straight pipe 12, foot hinge metal plate 9, on
The parts such as steel wire 10, lower steel wire 11 and headrest guide sleeve pipe 7 form, and meet leaning on for technology requirement to be welded into these parts groups
Spine frame needs to design a kind of automobile rear left seat back skeleton welding method, this automobile rear left seat back
The welding method of skeleton, includes the following steps：
A, welding fixture is made：Design and produce a kind of automobile rear left seat back skeleton welding fixture, this welding fixture
Including bottom plate 1, lower steel wire compressing unit 2, foot hinge metal plate compressing unit 3, upper steel wire support seat 4, bone are respectively equipped on bottom plate 1
Frame frame compressing unit 5 and headrest guide sleeve pipe compressing unit 6；
B, it assembles：Before assembling, first the bottom plate of welding fixture 1 is fixed on assembling station；By backrest bend pipe 8, backrest straight tube 12
It is placed in the supporting groove 502 of skeleton frame compressing unit 5；Headrest guide sleeve pipe 7 is set to determining for headrest guide sleeve pipe compressing unit
On position axis 603 and positioning key 602；Foot is hinged metal plate 9 to be fixed on backrest straight tube by foot hinge metal plate compressing unit 3；It will
The upper steel wire 10 is fixed on by upper steel wire support seat 4 on backrest bend pipe 8；Lower steel wire 11 is passed through into lower steel wire compressing unit 2
It is fixed on backrest straight tube 12；The briquetting of each unit is compressed, by the push-tight forward of each handle；
C, spot welding：Spot welding backrest bend pipe 8, the backrest straight tube 12, headrest guide sleeve pipe 7, foot are hinged metal plate 9, upper steel wire 10 successively
With lower steel wire 11；
D, turn sequence：The backrest frames that group welds are exited from welding fixture, then turn sequence to welding post；
E, it welds：Successively to the backrest bend pipe and backrest straight tube, the upper steel wire and the backrest bend pipe, the headrest
Guide thimble and the backrest bend pipe, the foot hinge metal plate and the backrest straight tube, the lower steel wire and the backrest straight tube into
Row welding；
F, scarfing cinder is examined：The backrest frames for completing welding are subjected to scarfing cinder, are finally tested.
Welding condition table：18 ~ 21V of weldingvoltage, welding current 140 ~ 170A, C02 10 ~ 15L/min of gas flow,
C02 gas concentrations 99.9%.
This automobile rear left seat back skeleton welding fixture that the present invention uses, as shown in Fig. 1 ~ 6, including bottom plate
1, it is respectively equipped with lower steel wire compressing unit 2, foot hinge metal plate compressing unit 3, upper steel wire support seat 4, skeleton frame on bottom plate 1 and compresses
Unit 5 and headrest guide sleeve pipe compressing unit 6；As shown in figures 1 to 6, wherein lower steel wire compressing unit 2 there are two sets, it is arranged in bottom
The front end of plate 1, foot hinge metal plate compressing unit 3 have a set of, are arranged in the lower left corner of bottom plate 1, and there are four upper steel wire support seats 4,
It is arranged in the centre position of bottom plate 1, skeleton frame compressing unit 5 is arranged in the centre position of bottom plate 1, headrest guide sleeve pipe compressing unit
6 are arranged in the rear side of bottom plate 1；
Lower steel wire compressing unit 2 as shown in Figure 2 shares two sets, and every suit includes first mounting base 204 and is located at first
Two the first support columns 202 of 204 front of mounting base, the first mounting base 204 are equipped with bearing 206, and bearing 206, which is equipped with, to be compressed
Component holds down assembly including the first briquetting 203, and the first briquetting 203 is connect by linking arm 207 with pressure arm 205, pressure arm
205 is U-shaped, and linking arm 207 is connect with the middle part of pressure arm 205, and the head of pressure arm 205 is equipped with the first hold-down head 201；Linking arm
207 is hinged by hinged shaft and bearing 206, and the first hold-down head 201 is corresponding with the first support column 202；
Foot hinge metal plate compressing unit 3 as shown in Figure 3 includes the column 305 set up vertical with bottom plate 1, and 305 side of column is equipped with
The side of first positioning seat 302, column 305 and the first positioning seat 302 is equipped with third mounting base 307, is set in third mounting base 307
There is the positioning pin 306 controlled by handle 308；Positioning pin 306 passes through the through-hole on the first positioning seat 302；Column 305
Side is equipped with the second mounting base 304, and being hinged with second in the second mounting base 304 holds down assembly, and second holds down assembly including connection
Arm, one end of linking arm connect the second hold-down head 301, and the other end connects the second briquetting 303, the second hold-down head 301 with it is fixed
Position pin 306 is coaxial corresponding；
Skeleton frame compressing unit 5 as shown in Figure 4 includes several supporting grooves 502 being located on bottom plate 1, supporting groove 502
Shape is U-shaped, and opening up；In the present embodiment, supporting groove 502 has 8；Also at least provided with two by supporting groove 502
A second positioning seat 501, in the present embodiment, the second positioning seat 501 has two；At least provided with two or more by supporting groove 502
Third hold down assembly, in the present embodiment, third, which holds down assembly, three groups；Third holds down assembly including the second support column 503, the
Two support columns 503 are equipped with the 4th mounting base 506, and the 4th mounting base 506 is equipped with third hold-down head 504, third hold-down head 504
It is connect with third briquetting 505 by connector, the other end of connector is connected with third briquetting 505；
Headrest guide sleeve pipe compressing unit 6 as shown in Figure 5 includes support plate 606, and support plate 606 is located on bottom plate 1；Support plate
606 are equipped with the mounting plate 609 set up vertically, and mounting plate 609 is equipped with horizontal universal driving shaft 605, universal driving shaft 605 by sliding eye
It is controlled by second handle 610；The front end of universal driving shaft 605 is connected with movable plate 604, and the front end of movable plate 604 is connected with horizontal
Locating shaft 603, locating shaft 603 have two, are separately positioned on the both sides of movable plate 604, and locating shaft 603 is equipped with positioning key 602；
Locating shaft 603 is corresponding with the third positioning seat 601 being located on bottom plate 1；The lower edge of movable plate 604 is equipped with horizontal guiding supporting plate
607, it is oriented to supporting plate 607 and is connect with mounting plate 609, when movable plate 604 moves, lower edge can slide on being oriented to supporting plate 607；
The both sides of universal driving shaft 605 are respectively equipped with guiding axis 608, and one end of guiding axis 608 connects movable plate 604, and the other end passes through peace
Pilot hole in loading board 609.
The welding method of this automobile rear left seat back skeleton provided by the invention, designed welding fixture are fixed
Position setting is reasonable, and clamping device is reliable, and the parts assembling of backrest frames and the integral solder technique of backrest frames simplify, and pass through
The reasonable disposition of production line and welding robot, is greatly improved production efficiency and quality.
Claims (5)
1. a kind of welding method of automobile rear left seat back skeleton, it is characterised in that：Include the following steps：
A, welding fixture is made：Design and produce a kind of automobile rear left seat back skeleton welding fixture, this welding fixture
Including bottom plate, lower steel wire compressing unit, foot hinge metal plate compressing unit, upper steel wire support seat, bone are respectively equipped on the bottom plate
Frame frame compressing unit and headrest guide sleeve pipe compressing unit；
B, it assembles：Before assembling, first the bottom plate of welding fixture 1 is fixed on assembling station；Backrest bend pipe, backrest straight tube are placed
In the supporting groove of the skeleton frame compressing unit；By headrest guide sleeve pipe sleeve to the positioning of the headrest guide sleeve pipe compressing unit
On axis and positioning key；Foot is hinged metal plate to be fixed on the backrest straight tube by the foot hinge metal plate compressing unit；By institute
Steel wire is stated to be fixed on the backrest bend pipe by the upper steel wire support seat；The lower steel wire is passed through into the lower steel wire pressure
Tight unit is fixed on the backrest straight tube；The briquetting of each unit is compressed, by the push-tight forward of each handle；
C, spot welding：Backrest bend pipe described in spot welding, the backrest straight tube, the headrest guide sleeve pipe, the foot are hinged metal plate, institute successively
State steel wire and the lower steel wire；
D, turn sequence：The backrest frames that group welds are exited from the welding fixture, then turn sequence to welding post；
E, it welds：Successively to the backrest bend pipe and backrest straight tube, the upper steel wire and the backrest bend pipe, the headrest
Guide thimble and the backrest bend pipe, the foot hinge metal plate and the backrest straight tube, the lower steel wire and the backrest straight tube into
Row welding；
F, scarfing cinder is examined：The backrest frames for completing welding are subjected to scarfing cinder, are finally tested.
2. the welding method of automobile rear left seat back skeleton according to claim 1, it is characterised in that：The step
The welding fixture of rapid B includes the lower steel wire compressing unit, and the lower steel wire compressing unit includes the first mounting base and sets
The first support column in first mounting base front, first mounting base are equipped with bearing, and the bearing, which is equipped with, to be compressed
Component, described to hold down assembly including the first briquetting, first briquetting is connect by linking arm with pressure arm, the pressure arm
Head is equipped with the first hold-down head；The linking arm is hinged by hinged shaft and the bearing, first hold-down head and described first
Support column is corresponding.
3. the welding method of automobile rear left seat back skeleton according to claim 1, it is characterised in that：The step
The welding fixture of rapid B includes the foot hinge metal plate compressing unit, and the foot hinge metal plate compressing unit includes column, institute
It states and is equipped with the first positioning seat by column, the side of the column and first positioning seat is equipped with third mounting base, the third
Mounting base is equipped with the positioning pin controlled by handle；The positioning pin passes through the through-hole on first positioning seat；Institute
The side for stating column is equipped with the second mounting base, and being hinged with second in second mounting base holds down assembly, the second compression group
Part includes linking arm, and one end of the linking arm connects the second hold-down head, and the other end connects the second briquetting, second pressure
Tight head is corresponding with the positioning pin.
4. the welding method of automobile rear left seat back skeleton according to claim 1, it is characterised in that：The step
The welding fixture of rapid B includes the skeleton frame compressing unit, and the skeleton frame compressing unit includes several being located at the bottom
The shape of supporting groove on plate, supporting groove is U-shaped, also at least provided with two the second positioning seats, institute by the supporting groove
It states the third by supporting groove at least provided with two or more to hold down assembly, the third holds down assembly including the second support column, institute
It states the second support column and is equipped with the 4th mounting base, the 4th mounting base is equipped with third press head, and the third press head is logical
It crosses connector to connect with third briquetting, the other end of the connector is connected with third briquetting.
5. the welding method of automobile rear left seat back skeleton according to claim 1, it is characterised in that：The step
The welding fixture of rapid B includes the headrest guide sleeve pipe compressing unit, and the headrest guide sleeve pipe compressing unit includes support plate,
The support plate is located on the bottom plate, and the support plate is equipped with the mounting plate set up vertically, and the mounting plate passes through sliding
Hole is equipped with horizontal universal driving shaft, and the universal driving shaft is controlled by second handle；The front end of the universal driving shaft is connected with movable plate, described
The front end of movable plate is connected with horizontal locating shaft, and the locating shaft is equipped with positioning key；The locating shaft and it is located at the bottom
Third positioning seat on plate corresponds to；The lower edge of the movable plate be equipped with horizontal guiding supporting plate, the guiding supporting plate with it is described
Mounting plate connects；The both sides of the universal driving shaft are respectively equipped with guiding axis, and one end of the guiding axis connects the movable plate, another
One end passes through the pilot hole on the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345120.3A CN108453457A (en) | 2018-04-17 | 2018-04-17 | The welding method of automobile rear left seat back skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345120.3A CN108453457A (en) | 2018-04-17 | 2018-04-17 | The welding method of automobile rear left seat back skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108453457A true CN108453457A (en) | 2018-08-28 |
Family
ID=63235732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810345120.3A Pending CN108453457A (en) | 2018-04-17 | 2018-04-17 | The welding method of automobile rear left seat back skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108453457A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282998A (en) * | 2018-09-04 | 2019-01-29 | 广州华智汽车部件有限公司 | A kind of automotive seat front row backrest detecting tool |
| CN110142557A (en) * | 2019-06-24 | 2019-08-20 | 大连中远海运川崎船舶工程有限公司 | A kind of welding equipment auxiliary fixture and its welding method for L2-S type component |
| CN113369787A (en) * | 2021-05-18 | 2021-09-10 | 贵州詹阳动力重工有限公司 | Assembly welding method and welding tool for space bent pipe of all-terrain vehicle |
| CN113798753A (en) * | 2021-08-03 | 2021-12-17 | 安徽信息工程学院 | Welding device for automobile seat |
| CN116890193A (en) * | 2023-08-11 | 2023-10-17 | 当涂大捷实业有限公司 | Welding tool for producing automobile seat framework and application method thereof |
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| US20040129757A1 (en) * | 2002-09-12 | 2004-07-08 | Eiji Toba | Apparatus for use in welding of a seat back frame |
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| CN105817814A (en) * | 2016-05-09 | 2016-08-03 | 重庆格机械制造有限公司 | Automobile steel wire seat welding device |
| CN205869815U (en) * | 2016-07-22 | 2017-01-11 | 沈阳普祺汽车部件有限公司 | Car seat steel frame automatic welding jig |
| CN206169538U (en) * | 2016-10-13 | 2017-05-17 | 辽宁赛德自动化科技有限公司 | Backrest welding jig assembly |
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| US20040129757A1 (en) * | 2002-09-12 | 2004-07-08 | Eiji Toba | Apparatus for use in welding of a seat back frame |
| CN104785934A (en) * | 2015-04-03 | 2015-07-22 | 蓝姆汽车焊接设备(上海)有限公司 | Automobile seat cushion automatic welding production line and production method thereof |
| CN105414847A (en) * | 2015-12-18 | 2016-03-23 | 重庆创力工贸有限公司 | Vehicle seat backrest skeleton welding process |
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| CN205869815U (en) * | 2016-07-22 | 2017-01-11 | 沈阳普祺汽车部件有限公司 | Car seat steel frame automatic welding jig |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282998A (en) * | 2018-09-04 | 2019-01-29 | 广州华智汽车部件有限公司 | A kind of automotive seat front row backrest detecting tool |
| CN110142557A (en) * | 2019-06-24 | 2019-08-20 | 大连中远海运川崎船舶工程有限公司 | A kind of welding equipment auxiliary fixture and its welding method for L2-S type component |
| CN113369787A (en) * | 2021-05-18 | 2021-09-10 | 贵州詹阳动力重工有限公司 | Assembly welding method and welding tool for space bent pipe of all-terrain vehicle |
| CN113798753A (en) * | 2021-08-03 | 2021-12-17 | 安徽信息工程学院 | Welding device for automobile seat |
| CN116890193A (en) * | 2023-08-11 | 2023-10-17 | 当涂大捷实业有限公司 | Welding tool for producing automobile seat framework and application method thereof |
| CN116890193B (en) * | 2023-08-11 | 2024-05-10 | 当涂大捷实业有限公司 | Welding tool for producing automobile seat framework and application method thereof |
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Application publication date: 20180828 |