CN106001959A - Frame manufacturing technology - Google Patents
Frame manufacturing technology Download PDFInfo
- Publication number
- CN106001959A CN106001959A CN201610422510.7A CN201610422510A CN106001959A CN 106001959 A CN106001959 A CN 106001959A CN 201610422510 A CN201610422510 A CN 201610422510A CN 106001959 A CN106001959 A CN 106001959A
- Authority
- CN
- China
- Prior art keywords
- block
- rotating shaft
- welding
- briquetting
- wing plate
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 42
- 239000007937 lozenge Substances 0.000 claims description 9
- 238000003698 laser cutting Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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 for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a frame manufacturing technology. The frame manufacturing technology comprises the following steps that a, blanking is conducted, and a numerical control laser cutting machine is utilized for blanking to manufacture upper wing plates, lower wing plates and webs; b, a left longitudinal beam and a right longitudinal beam are welded, on a welding platform, primary shaping is achieved with the webs as the reference, and after a longitudinal welding tool is utilized for clamping and positioning the upper wing plates, the lower wing plates and the webs, welding forming is achieved; and c, a frame is welded, the left longitudinal beam formed through welding and the right longitudinal beam formed through welding are arranged on the welding platform, the frame is upright with the low wing plate of the left longitudinal beam and the low wing plate of the right longitudinal beam as the reference, and after clamping and positioning are conducted through a frame welding tool, welding forming is achieved. According to the frame manufacturing technology, the left longitudinal beam and the right longitudinal beam are welded and formed with the webs as the reference, and overall frame welding is achieved with the low wing plate of the left longitudinal beam and the low wing plate of the right longitudinal beam as the reference. Operation is convenient and easy, deformation after welding is little, and subsequent assembling can be smoothly conducted.
Description
Technical field
The present invention relates to automotive field, particularly relate to a kind of vehicle frame processing technology.
Background technology
Vehicle frame is the matrix of each subsystem parts assembling in vehicle carrying platform, and its quality is directly connected to car
Usability and safety.
Currently for the vehicle frame of part abnormity Integral welded frame structure, it makes more difficulty, generally
Weld after using rigidity location, its most fragile vehicle frame and jig, and post welding distortion be relatively big,
Dimensional discrepancy is serious, causes follow-up assembling to be smoothed out, and thus, is badly in need of solving.
Summary of the invention
It is an object of the invention to provide a kind of vehicle frame processing technology, to solve existing abnormity Integral welded frame
The vehicle frame of shelf structure makes difficulty, and post welding distortion is big, the problem that dimensional discrepancy is serious.
It is an object of the invention to be achieved through the following technical solutions:
A kind of vehicle frame processing technology, comprises the following steps:
A, blanking: use numerical control laser cutter blanking to make upper flange, lower wing plate and web；
B, left and right longitudinal beam welding: on jig, tentatively shape on the basis of web, use longeron weldering
Connect frock by after upper flange, lower wing plate, web clamping and positioning, welding fabrication；
C, Frame Welding: the left and right longeron of welding fabrication is placed on jig, with left and right longeron
Erect on the basis of lower wing plate, after using Frame Welding frock clamping and positioning, welding fabrication.
As a preferred embodiment of the present invention, the longitudinal beam welding frock in described step b includes being fixed on weldering
Connect the cushion block on platform, upper flange locating piece, lower wing plate locating piece and clamp system, described cushion block be positioned at a left side,
The corner of right vertical beam, and it is identical with the Web shape of left and right longeron, described upper flange locating piece is arranged
Outside the upper flange of left and right longeron, and be close on upper flange, described lower wing plate locating piece be arranged at a left side,
Outside the lower wing plate of right vertical beam, and being close on lower wing plate, described clamp system includes clamping block and being fixed on
Fixed block on jig, described fixed block is provided with the first lozenges, described clamping block is provided with
The second lozenges matched with the first lozenges.
As a preferred embodiment of the present invention, in described step c, Frame Welding frock includes the first location work
Dress, 2 the second positioning tools, 4 the 3rd positioning tools and the 4th positioning tools.
As a preferred embodiment of the present invention, described first positioning tool includes the first clamping element and first end
Seat, the top of described first base be provided with on first crossbeam, and the first base be provided with the first forward support block,
First aft support block, described first crossbeam is positioned at the top of the first forward support block is moving up and down to be provided with
It is positioned on briquetting, and first crossbeam before first that the top of the first aft support block is moving up and down is provided with first
Rear briquetting, described first forward support block has been provided with the first front limit plate of position-limiting action, after described first
Propping up the first rear position margining plate being provided with position-limiting action on bracer, described first clamping element includes the first rotating shaft,
The front end of described first rotating shaft is provided with left hand thread, and threaded have first before jacking block, and the first rotating shaft
Rear end be provided with right-handed thread, and threaded have first after jacking block.
As a preferred embodiment of the present invention, described second positioning tool includes the second clamping element and second end
Seat, the top of described second base be provided with on second cross beam, and the second base be provided with the second forward support block,
Second aft support block, described second cross beam is positioned at the top of the second forward support block is moving up and down to be provided with
It is positioned on briquetting, and second cross beam before second that the top of the second aft support block is moving up and down is provided with second
Rear briquetting, described second forward support block has been provided with the second front limit plate of position-limiting action, after described second
Propping up the second rear position margining plate being provided with position-limiting action on bracer, described second clamping element includes the second rotating shaft,
The front end of described second rotating shaft is provided with left hand thread, and threaded have second before jacking block, and the second rotating shaft
Rear end be provided with right-handed thread, and threaded have second after jacking block.
As a preferred embodiment of the present invention, before described 3rd positioning tool includes the 3rd clamping element and the 3rd
Bearing, the 3rd rear support, before the described 3rd, bearing is connected by the 3rd crossbeam and the 3rd rear support, and the 3rd
The rear end of front bearing is provided with the 3rd prelocalization plane, and after the front end of the 3rd rear support is provided with the 3rd, location is flat
Face, on described 3rd crossbeam moving up and down be provided with the 3rd before briquetting, briquetting after the 3rd, the described 3rd
Clamping element includes that the 3rd rotating shaft, the front end of described 3rd rotating shaft are provided with left hand thread, and threaded has
Jacking block before three, and the rear end of the 3rd rotating shaft is provided with right-handed thread, and threaded have the 3rd after jacking block.
As a preferred embodiment of the present invention, described 4th positioning tool includes the 4th clamping element, the 4th pad
Plate and be fixed on bearing, the 4th rear support before the 4th on the 4th backing plate, before the described 4th, bearing passes through the 4th
Crossbeam and the 4th rear support are connected, and before the 4th, the rear end of bearing is provided with the 4th prelocalization plane, after the 4th
The front end of bearing positions plane after being provided with the 4th, moving up and down on described 4th crossbeam is provided with the 4th
Front briquetting, briquetting after the 4th, described 4th clamping element includes that the 4th rotating shaft, the front end of described 4th rotating shaft set
Be equipped with left hand thread, and threaded have the 4th before jacking block, and the rear end of the 4th rotating shaft is provided with right-handed thread,
And threaded have the 4th after jacking block.
The invention have the benefit that described a kind of vehicle frame processing technology on the basis of web by left and right longeron
Welding fabrication, then on the basis of the lower wing plate of left and right longeron, it is achieved the integral solder of vehicle frame, easy to operate,
Simply, post welding distortion is little, it is possible to be smoothed out follow-up assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle frame of the present invention；
Fig. 2 is the structural representation of longitudinal beam welding frock of the present invention；
Fig. 3 is the enlarged drawing at A of the longitudinal beam welding frock shown in Fig. 2；
Fig. 4 is the structural representation of Frame Welding frock of the present invention；
Fig. 5 is the structural representation of the present invention the first positioning tool；
Fig. 6 is the structural representation of the present invention the second positioning tool；
Fig. 7 is the structural representation of the present invention the 3rd positioning tool；
Fig. 8 is the structural representation of the present invention the 4th positioning tool.
In figure:
1, cushion block；2, upper flange locating piece；3, lower wing plate locating piece；4, fixed block；5, clamping block；
6, jig；7, the first positioning tool；8, the second positioning tool；9, the 3rd positioning tool；10、
4th positioning tool；11, the first base；12, first crossbeam；13, the first forward support block；14, first
Aft support block；15, briquetting before first；16, briquetting after first；17, the first front limit plate；18, first
Rear position margining plate；19, the first rotating shaft；20, jacking block before first；21, jacking block after first；22, the second base；
23, second cross beam；24, the second forward support block；25, the second aft support block；26, briquetting before second；27、
Briquetting after second；28, the second front limit plate；29, the second rear position margining plate；30, the second rotating shaft；31,
Jacking block before two；32, jacking block after second；33, bearing before the 3rd；34, the 3rd rear support；35, the 3rd is horizontal
Beam；36, plane is positioned after the 3rd；37, briquetting before the 3rd；38, briquetting after the 3rd；39, the 3rd rotating shaft；
40, jacking block before the 3rd；41, jacking block after the 3rd；42, the 4th backing plate；43, bearing before the 4th；44,
Four rear supports；45, the 4th crossbeam；46, plane is positioned after the 4th；47, briquetting before the 4th；, 48, the 4th
Rear briquetting；49, the 4th rotating shaft；50, jacking block before the 4th；51, jacking block after the 4th.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Referring to shown in Fig. 1 to Fig. 8, in the present embodiment, a kind of vehicle frame processing technology, including following step
Rapid:
A, blanking: use numerical control laser cutter blanking to make upper flange, lower wing plate and web；
B, left and right longitudinal beam welding: on jig 6, tentatively shape on the basis of web, use longeron
Welding tooling by after upper flange, lower wing plate, web clamping and positioning, welding fabrication；
C, Frame Welding: the left and right longeron of welding fabrication is placed on jig 6, with left and right longeron
Lower wing plate on the basis of erect, use after Frame Welding frock clamping and positioning, welding fabrication.
Cushion block 1 that described longitudinal beam welding frock includes being fixed on jig 6, upper flange locating piece 2, under
Wing plate locating piece 3 and clamp system, described cushion block 1 is positioned at the corner of left and right longeron, and its with left,
The Web shape of right vertical beam is identical, and described upper flange locating piece 2 is arranged at outside the upper flange of left and right longeron,
And be close on upper flange, described lower wing plate locating piece 3 is arranged at outside the lower wing plate of left and right longeron, and
Being close on lower wing plate, described clamp system includes the fixed block 4 clamping block 5 and being fixed on jig 6,
It is provided with the first lozenges on described fixed block 4, described clamping block 5 is provided with and matches with the first lozenges
The second lozenges closed.
Described Frame Welding frock includes that 7,2 the second positioning tools of the first positioning tool 8,4 the 3rd are fixed
Position frock 9 and the 4th positioning tool 10.Described first positioning tool 7 includes the first clamping element and the first base
11, the top of described first base 11 is provided with on first crossbeam 12, and the first base 11 and is provided with first
Forward support block the 13, first aft support block 14, described first crossbeam 12 is positioned at the upper of the first forward support block 13
Portion is moving up and down be provided with first before be positioned at the first aft support block 14 on briquetting 15, and first crossbeam 12
Top moving up and down be provided with first after briquetting 16, described first forward support block 13 has been provided with limit
First front limit plate 17 of position effect, after described first aft support block 14 has been provided with the first of position-limiting action
Limiting plate 18, described first clamping element includes that the first rotating shaft 19, the front end of described first rotating shaft 19 are provided with
Left hand thread, and threaded have first before jacking block 20, and the rear end of the first rotating shaft 19 is provided with right-handed thread,
And threaded have first after jacking block 21, described second positioning tool 8 includes the second clamping element and the second base
22, the top of described second base 22 is provided with on second cross beam 23, and the second base 22 and is provided with second
Forward support block the 24, second aft support block 25, the height of described second forward support block 24 is more than the first front support
The height of block 13, the height of described second aft support block 25 is more than the height of the first aft support block 14, described
Briquetting 26 before being positioned on second cross beam 23 that the top of the second forward support block 24 is moving up and down and being provided with second,
And the top that is positioned at the second aft support block 25 on second cross beam 23 is moving up and down be provided with second after briquetting
27, described second forward support block 24 is provided with the second front limit plate 28 of position-limiting action, after described second
Propping up the second rear position margining plate 29 being provided with position-limiting action on bracer 25, described second clamping element includes second turn
Axle 30, the front end of described second rotating shaft 30 is provided with left hand thread, and threaded have second before jacking block 31,
And second the rear end of rotating shaft 30 be provided with right-handed thread, and threaded have second after jacking block 32, the described 3rd
Positioning tool 9 includes bearing the 33, the 3rd rear support 34 before the 3rd clamping element and the 3rd, bearing before the described 3rd
33 are connected with the 3rd rear support 34 by the 3rd crossbeam 35, and before the 3rd, the rear end of bearing 33 is provided with the 3rd
Prelocalization plane, the front end of the 3rd rear support 34 positions plane 36, described 3rd crossbeam after being provided with the 3rd
On 35 moving up and down be provided with the 3rd before briquetting 38 after briquetting the 37, the 3rd, described 3rd clamping element includes
3rd rotating shaft 39, the front end of described 3rd rotating shaft 39 is provided with left hand thread, and threaded has the 3rd sinciput
Block 40, and the rear end of the 3rd rotating shaft 39 is provided with right-handed thread, and threaded have the 3rd after jacking block 41,
Described 4th positioning tool 10 includes the 4th clamping element, the 4th backing plate 42 and is fixed on the 4th backing plate 42
Bearing the 43, the 4th rear support 44 before 4th, before the described 4th, bearing 43 is by after the 4th crossbeam 45 and the 4th
Bearing 44 is connected, and before the 4th, the rear end of bearing 43 is provided with the 4th prelocalization plane, the 4th rear support 44
Front end be provided with the 4th after position plane 46, moving up and down on described 4th crossbeam 45 be provided with the 4th
Briquetting 48 after front briquetting the 47, the 4th, described 4th clamping element includes the 4th rotating shaft 49, described 4th rotating shaft
The front end of 49 is provided with left hand thread, and threaded have the 4th before after jacking block 50, and the 4th rotating shaft 49
End is provided with right-handed thread, and threaded have the 4th after jacking block 51.
Above example simply elaborates ultimate principle and the characteristic of the present invention, and the present invention is not by above-described embodiment
Limiting, without departing from the spirit and scope of the present invention, the present invention also has various change and change, this
A little changes and change both fall within scope of the claimed invention.Claimed scope is by appended
Claims define.
Claims (7)
1. a vehicle frame processing technology, it is characterised in that: comprise the following steps:
A, blanking: use numerical control laser cutter blanking to make upper flange, lower wing plate and web；
B, left and right longitudinal beam welding: on jig, tentatively shape on the basis of web, use longeron weldering
Connect frock by after upper flange, lower wing plate, web clamping and positioning, welding fabrication；
C, Frame Welding: the left and right longeron of welding fabrication is placed on jig, with left and right longeron
Erect on the basis of lower wing plate, after using Frame Welding frock clamping and positioning, welding fabrication.
A kind of vehicle frame processing technology the most according to claim 1, it is characterised in that: in described step b
Longitudinal beam welding frock include being fixed on jig cushion block, upper flange locating piece, lower wing plate locating piece
And clamp system, described cushion block is positioned at the corner of left and right longeron, and its web shape with left and right longeron
Shape is identical, and described upper flange locating piece is arranged at outside the upper flange of left and right longeron, and is close to upper flange
On, described lower wing plate locating piece is arranged at outside the lower wing plate of left and right longeron, and is close on lower wing plate,
Described clamp system includes the fixed block clamping block and being fixed on jig, and described fixed block is provided with
First lozenges, described clamping block is provided with the second lozenges matched with the first lozenges.
A kind of vehicle frame processing technology the most according to claim 1, it is characterised in that: in described step c
Frame Welding frock includes the first positioning tool, 2 the second positioning tools, 4 the 3rd positioning tools and the 4th
Positioning tool.
A kind of vehicle frame assembly frock the most according to claim 1, it is characterised in that: described first location
Frock includes that the first clamping element and the first base, the top of described first base are provided with first crossbeam, and
It is provided with the first forward support block, the first aft support block on one base, props up before described first crossbeam is positioned at first
The top of bracer is moving up and down be provided with first before be positioned at the first aft support block on briquetting, and first crossbeam
Top moving up and down be provided with first after briquetting, described first forward support block has been provided with spacing work
The first front limit plate, described first aft support block has been provided with the first rear position margining plate of position-limiting action,
Described first clamping element includes that the first rotating shaft, the front end of described first rotating shaft are provided with left hand thread, and screw thread
Connect jacking block before having first, and the rear end of the first rotating shaft be provided with right-handed thread, and threaded have first after
Jacking block.
A kind of vehicle frame assembly frock the most according to claim 1, it is characterised in that: described second location
Frock includes that the second clamping element and the second base, the top of described second base are provided with second cross beam, and
It is provided with the second forward support block, the second aft support block on two bases, props up before described second cross beam is positioned at second
The top of bracer is moving up and down be provided with second before be positioned at the second aft support block on briquetting, and second cross beam
Top moving up and down be provided with second after briquetting, described second forward support block has been provided with spacing work
The second front limit plate, described second aft support block has been provided with the second rear position margining plate of position-limiting action,
Described second clamping element includes that the second rotating shaft, the front end of described second rotating shaft are provided with left hand thread, and screw thread
Connect jacking block before having second, and the rear end of the second rotating shaft be provided with right-handed thread, and threaded have second after
Jacking block.
A kind of vehicle frame assembly frock the most according to claim 1, it is characterised in that: described 3rd location
Frock includes bearing, the 3rd rear support before the 3rd clamping element and the 3rd, and before the described 3rd, bearing is horizontal by the 3rd
Beam and the 3rd rear support are connected, and before the 3rd, the rear end of bearing is provided with the 3rd prelocalization plane, prop up after the 3rd
Seat front end be provided with the 3rd after position plane, on described 3rd crossbeam moving up and down be provided with the 3rd before
Briquetting, briquetting after the 3rd, described 3rd clamping element includes the 3rd rotating shaft, and the front end of described 3rd rotating shaft is arranged
Have left hand thread, and threaded have the 3rd before jacking block, and the rear end of the 3rd rotating shaft is provided with right-handed thread,
And threaded have the 3rd after jacking block.
A kind of vehicle frame assembly frock the most according to claim 1, it is characterised in that: described 4th location
Frock include the 4th clamping element, the 4th backing plate and be fixed on the 4th on the 4th backing plate before bearing, after the 4th
Seat, before the described 4th, bearing is connected by the 4th crossbeam and the 4th rear support, and before the 4th, the rear end of bearing sets
Being equipped with the 4th prelocalization plane, the front end of the 4th rear support positions plane after being provided with the 4th, the described 4th is horizontal
On beam moving up and down be provided with the 4th before briquetting, briquetting after the 4th, described 4th clamping element includes the 4th
Rotating shaft, the front end of described 4th rotating shaft is provided with left hand thread, and threaded have the 4th before jacking block, and
The rear end of four rotating shafts is provided with right-handed thread, and threaded have the 4th after jacking block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422510.7A CN106001959A (en) | 2016-06-15 | 2016-06-15 | Frame manufacturing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610422510.7A CN106001959A (en) | 2016-06-15 | 2016-06-15 | Frame manufacturing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001959A true CN106001959A (en) | 2016-10-12 |
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ID=57089020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610422510.7A Pending CN106001959A (en) | 2016-06-15 | 2016-06-15 | Frame manufacturing technology |
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| CN (1) | CN106001959A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736136A (en) * | 2016-11-28 | 2017-05-31 | 广州电力机车有限公司 | A kind of welding tooling of vehicle frame and the method for welding |
| CN109396824A (en) * | 2017-08-18 | 2019-03-01 | 东莞中集专用车有限公司 | The assembly or fitting table of special-purpose vehicle front frame |
| CN110883437A (en) * | 2018-08-27 | 2020-03-17 | 森源汽车股份有限公司 | Axle housing blank cutting location frock |
| CN110900132A (en) * | 2019-12-25 | 2020-03-24 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| US11472492B2 (en) * | 2020-11-03 | 2022-10-18 | Hyundai Motor Company | Frame joint structure |
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| CN106736136A (en) * | 2016-11-28 | 2017-05-31 | 广州电力机车有限公司 | A kind of welding tooling of vehicle frame and the method for welding |
| CN109396824A (en) * | 2017-08-18 | 2019-03-01 | 东莞中集专用车有限公司 | The assembly or fitting table of special-purpose vehicle front frame |
| CN109396824B (en) * | 2017-08-18 | 2024-04-19 | 东莞中集专用车有限公司 | Assembling table for front frame of special vehicle |
| CN110883437A (en) * | 2018-08-27 | 2020-03-17 | 森源汽车股份有限公司 | Axle housing blank cutting location frock |
| CN110900132A (en) * | 2019-12-25 | 2020-03-24 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| CN110900132B (en) * | 2019-12-25 | 2021-04-27 | 徐州比亚机械设备有限公司 | Trailer frame machining process |
| US11472492B2 (en) * | 2020-11-03 | 2022-10-18 | Hyundai Motor Company | Frame joint structure |
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