CN212946231U - Loader hood skeleton split welding device - Google Patents
Loader hood skeleton split welding device Download PDFInfo
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- CN212946231U CN212946231U CN202021207948.1U CN202021207948U CN212946231U CN 212946231 U CN212946231 U CN 212946231U CN 202021207948 U CN202021207948 U CN 202021207948U CN 212946231 U CN212946231 U CN 212946231U
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- 238000003466 welding Methods 0.000 title claims abstract description 34
- 230000009471 action Effects 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract 3
- 238000000429 assembly Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 2
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Abstract
The utility model relates to a loader hood skeleton split welding device belongs to loader manufacturing technical field. The device comprises a bottom plate assembly, a supporting seat assembly, a beam positioning seat assembly and a limiting and clamping device; the supporting seat assemblies are arranged at two ends of the bottom plate assembly, the supporting seat assemblies are used for placing a front portal and a rear portal of the hood framework, the supporting seat assemblies are respectively provided with action surfaces which are parallel relatively, and a beam positioning seat assembly used for fixing an upper beam of the hood framework and a limiting clamping device used for limiting the position of the portal of the hood framework are arranged on the action surfaces. The utility model discloses shape and the technological characteristic design according to the product have made the location benchmark, have realized the tailor-welding of the aircraft bonnet skeleton that has different aircraft bonnet skeleton widths through clamping mechanism, press from both sides tight and corner cylinder, locating piece that supporting seat subassembly both ends were equipped with through the limiting plate and implement to press from both sides tightly and fix preceding, back portal, accomplish weldment work again. The tailor-welding device is flexible and simple to operate, high in welding efficiency and capable of solving the problem of redundant and complicated work sites.
Description
Technical Field
The utility model relates to a loader hood skeleton split welding device belongs to loader manufacturing technical field.
Background
The hood framework is used as an important component of the hood of the loader, although the structure is simple, the whole loader shakes greatly in the shoveling operation process, so that the hood framework needs to ensure enough strength; the hood door is assembled on the hood framework, the gap between the hood door and the front and rear hoods needs to be consistent, and meanwhile, the hood framework is assembled on the rear frame, so that the overall size of the welded hood framework needs to be ensured. As shown in fig. 1, the hood framework includes a front door frame 1, a rear door frame 2, a left lock plate 3, a right lock plate 4, and an upper cross beam 5. The engine hood framework tailor-welding tool is a piece of technical equipment specially designed and manufactured for ensuring the size of the engine hood framework after welding, and with the tool, the engine hood framework can meet the drawing requirements in the production and processing process.
Traditional skeleton tailor-welding frock adopts the method of quick fixture, complex operation, and operating space is little, and is efficient, and intensity of labour is big, and the size is difficult for guaranteeing, can not realize the skeleton tailor-welding of different portal widths simultaneously, causes aircraft bonnet skeleton tailor-welding frock kind many, the crowded phenomenon in production field.
Disclosure of Invention
The utility model aims at solving the technical problem of present aircraft bonnet skeleton welding process complex operation, operating space is little, and is efficient, and intensity of labour is big, and the difficult assurance of size can not realize the skeleton tailor-welding of different portal widths.
In order to solve the problems, the technical scheme adopted by the utility model is to provide a loader hood framework split welding device, wherein an upper cross beam and a lower lock plate are welded between a front door frame and a rear door frame of a hood framework through a split welding device, and the split welding device comprises a bottom plate assembly, a supporting seat assembly, a cross beam positioning seat assembly and a limiting clamping device; the supporting seat assembly comprises a left supporting seat assembly and a right supporting seat assembly which are symmetrically arranged at two ends of the same side of the plate surface of the bottom plate assembly and used for placing front and rear door frames of the hood framework, the left supporting seat assembly and the right supporting seat assembly are respectively provided with action surfaces which are relatively parallel, the two action surfaces are vertical to the plane where the door frames of the hood framework are located, and the two action surfaces are vertical to the plate surface of the bottom plate assembly; the action surfaces of the left supporting seat assembly and the right supporting seat assembly are respectively provided with a beam positioning seat assembly for fixing an upper beam of the hood framework; and the action surfaces of the left supporting seat assembly and the right supporting seat assembly are respectively provided with a limiting clamping device for limiting the position of a gantry of the hood framework.
Preferably, a limiting and clamping device arranged on the left supporting seat assembly is a first limiting and clamping device, and the first limiting and clamping device comprises a first limiting plate, a second limiting plate, a corner cylinder, a thin cylinder, a locking plate positioning plate and a positioning block; the middle part of the action surface of the left support seat assembly is provided with a first limiting plate which can move back and forth perpendicular to the action surface and is used for clamping the front door frame and the rear door frame, and two ends of the first limiting plate are respectively provided with a corner cylinder and a positioning block which are used for limiting the positions of the front door frame and the rear door frame of the hood framework; a second limiting plate which can move back and forth perpendicular to the action surface and is used for clamping the front and rear door frames and the lower locking plate is arranged on one side, close to the plate surface of the bottom plate assembly, of the action surface of the left supporting seat assembly, and two ends of the second limiting plate are respectively provided with a corner cylinder used for limiting the positions of the front and rear door frames and the lower locking plate of the hood framework; a locking plate positioning plate for placing a lower locking plate is arranged on one side, close to the action surface of the left supporting seat assembly, of the surface of the bottom plate assembly; thin cylinders for telescopically moving the limiting plates are arranged between the first limiting plate and the second limiting plate and the left support seat assembly.
Preferably, a limiting and clamping device arranged on the right supporting seat assembly is a limiting and clamping device II, and the limiting and clamping device II comprises a corner cylinder, a locking plate positioning plate and a positioning block; corner cylinders and positioning blocks for limiting the positions of front and rear door frames of the hood framework are arranged on two sides of the middle part of the action surface of the right support seat assembly and correspond to the first limiting plate of the left support seat assembly; two ends of the acting surface of the right supporting seat assembly, which are close to one side of the plate surface of the bottom plate assembly, correspond to the limiting plates of the left supporting seat assembly, and are provided with corner cylinders for limiting the positions of the front and rear door frames and the lower lock plate of the hood framework; and a locking plate positioning plate for placing a lower locking plate is arranged on one side of the plate surface of the bottom plate assembly, which is close to the action surface of the right supporting seat assembly.
Preferably, the two ends of the lock plate positioning plate are respectively provided with a positioning block for limiting the position of the lower lock plate.
Preferably, a quick clamp for limiting the position of the lower lock plate is arranged on the bottom plate assembly between the left supporting seat assembly and the right supporting seat assembly.
Preferably, a first guide post which ensures that the plate surface of the first limiting plate is parallel to and vertically moves relative to the action surface of the left support seat assembly is arranged between the first limiting plate and the left support seat assembly, and the first guide post is vertically connected with the first limiting plate; the number of the first guide posts is greater than or equal to 2.
Preferably, a second guide post which ensures that the plate surface of the second limit plate is parallel to and vertically moves relative to the action surface of the left support seat assembly is arranged between the second limit plate and the left support seat assembly, and the second guide post is vertically connected with the second limit plate; the number of the second guide columns is greater than or equal to 2.
Preferably, one end of the first guide post, which is far away from the first limit plate, is provided with a first nut for limiting the moving distance of the first limit plate.
Preferably, one end, far away from the second limiting plate, of the second guiding column is provided with a second nut for limiting the moving distance of the second limiting plate.
Preferably, the beam positioning seat assembly is provided with hole sites for positioning upper beams of hood frameworks with different widths.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses shape and the technological characteristic according to the product have made main location benchmark, realize having the tailor-welding of the aircraft bonnet skeleton of different aircraft bonnet skeleton widths through promoting clamping mechanism, press from both sides the corner cylinder that tightly and supporting seat subassembly both ends were equipped with through promoting the limiting plate, the locating piece is to preceding, back portal implement to press from both sides tightly and fix and accomplish weldment work again. The utility model discloses the flexible operation is simple, and efficiency is promoted by a wide margin, has solved the long and thin miscellaneous phenomenon of job site simultaneously. Practice proves that compared with the traditional tailor-welding method, the tailor-welding efficiency of the single piece is improved by more than 2 times.
Drawings
FIG. 1 is a schematic perspective view of a hood framework of a conventional loader;
fig. 2 is a perspective view of the loader hood framework tailor-welding device provided by the present invention;
fig. 3 is a schematic structural view of the loader hood framework tailor-welding device provided by the present invention in use;
reference numerals: 1. a front door frame; 2. a rear door frame; 3. a left locking plate; 4. a right lock plate; 5. an upper cross beam; 6. a floor assembly; 7. a left support base assembly; 8. a left upper beam positioning seat assembly; 9. a corner cylinder; 10. a first limiting plate; 101. a second limiting plate; 11. a corner cylinder II; 12. a right upper beam location seat assembly; 13. a left lock plate positioning plate; 14. a rapid clamp; 15. a corner cylinder III; 16. a right lock plate positioning plate; 17. a right support base assembly; 18. a corner cylinder IV; 19. a first guide post; 191. a second guide post; 20. a thin cylinder; 21. a first nut; 211. a second nut;
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-3, the utility model provides a loader hood framework split welding device, the hood framework comprises a front door frame 1, a rear door frame 2, a left lock plate 3, a right lock plate 4 and an upper cross beam 5; the front door frame 1 and the rear door frame 2 of the hood framework are connected with the upper crossbeam 5 and the lower lock plate through welding by a tailor-welding device, and the tailor-welding device comprises a bottom plate assembly 6, a supporting seat assembly, a crossbeam positioning seat assembly and a limiting clamping device; the supporting seat component comprises a left supporting seat component 7 and a right supporting seat component 17 which are symmetrically arranged at two ends of the same side of the plate surface of the bottom plate assembly 6 and are used for placing a front door frame and a rear door frame of the hood framework, the left supporting seat component 7 and the right supporting seat component 17 are respectively provided with action surfaces which are relatively parallel, the two action surfaces are vertical to the plane where the door frames of the hood framework are located, and the two action surfaces are vertical to the plate surface of the bottom plate assembly 6; the action surfaces of the left supporting seat assembly 7 and the right supporting seat assembly 17 are respectively provided with a beam positioning seat assembly for fixing the upper beam 5 of the hood framework; limiting and clamping devices for limiting the positions of the machine hood framework door frames are respectively arranged on the action surfaces of the left supporting seat assembly 7 and the right supporting seat assembly 17. A limiting and clamping device arranged on the left supporting seat assembly 7 is a first limiting and clamping device, and the first limiting and clamping device comprises a first limiting plate 10, a second limiting plate 101, a corner cylinder, a thin cylinder 20, a locking plate positioning plate and a positioning block; a limiting plate I10 which can move back and forth perpendicular to the action surface and is used for clamping the front door frame and the rear door frame is arranged in the middle of the action surface of the left supporting seat assembly 7, and a corner cylinder and a positioning block which are used for limiting the positions of the front door frame and the rear door frame of the hood framework are respectively arranged at two ends of the limiting plate I10; a second limiting plate 101 which can move back and forth perpendicular to the action surface and is used for clamping the front and rear door frames and the lower locking plate is arranged on one side, close to the surface of the bottom plate assembly 6, of the action surface of the left supporting seat component 7, and corner cylinders for limiting the positions of the front and rear door frames and the lower locking plate of the hood framework are respectively arranged at two ends of the second limiting plate 101; a locking plate positioning plate for placing a lower locking plate is arranged on one side of the plate surface of the bottom plate assembly 6 close to the action surface of the left supporting seat assembly 7; thin air cylinders 20 for telescopically moving the limiting plates are arranged between the first limiting plate 10, the second limiting plate 101 and the left supporting seat assembly 7. A limiting and clamping device arranged on the right supporting seat assembly 17 is a limiting and clamping device II, and the limiting and clamping device II comprises a corner cylinder, a locking plate positioning plate and a positioning block; corner cylinders and positioning blocks for limiting the positions of front and rear door frames of the hood framework are arranged on two sides of the middle part of the action surface of the right supporting seat assembly 17 and correspond to the first limiting plate 10 of the left supporting seat assembly 7; two ends of the action surface of the right supporting seat assembly 17, which are close to one side of the plate surface of the bottom plate assembly 6, correspond to the second limiting plate 101 of the left supporting seat assembly 7, and are provided with corner cylinders for limiting the positions of the front and rear door frames and the lower locking plate of the hood framework; one side of the surface of the bottom plate assembly 6, which is close to the action surface of the right supporting seat component 17, is provided with a locking plate positioning plate for placing a lower locking plate. Two ends of the lock plate positioning plate are respectively provided with a positioning block for limiting the position of the lower lock plate; and a quick clamp 14 for limiting the position of the lower lock plate is arranged on the bottom plate assembly between the left support seat component 7 and the right support seat component 17. A first guide column 19 which ensures that the plate surface of the first limit plate 10 is parallel to and vertically moves relative to the action surface of the left support seat assembly 7 is arranged between the first limit plate 10 and the left support seat assembly 7, and the first guide column 19 is vertically connected with the first limit plate 10; the number of the first guide posts 19 is set to 2 or more. A second guide column 191 for ensuring that the plate surface of the second limit plate 101 is parallel to and vertically moves relative to the action surface of the left support seat assembly 7 is arranged between the second limit plate 101 and the left support seat assembly 7, and the second guide column 191 is vertically connected with the second limit plate 101; the number of the second guide posts 191 is set to 2 or more. One end of the guide column I19, which is far away from the limiting plate I10, is provided with a nut I21 which limits the moving distance of the limiting plate I10. And a second nut 211 for limiting the moving distance of the second limiting plate 101 is arranged at one end, away from the second limiting plate 101, of the second guide column 191. Hole sites for positioning the upper crossbeams of the hood frameworks with different widths are arranged on the crossbeam positioning seat assembly.
As fig. 2, fig. 3 shows, the utility model relates to a loader hood skeleton split welding device, including bottom plate assembly 6, the both sides of bottom plate assembly 6 are equipped with left supporting seat subassembly 7 and right supporting seat subassembly 17 respectively, are equipped with left jam plate locating plate 13 on left supporting seat subassembly 7 and the right supporting seat subassembly 17 respectively, and right jam plate locating plate 16, 6 middle part symmetries of bottom plate assembly are equipped with two quick anchor clamps 14, and quick anchor clamps 14 are used for pressing from both sides tight jam plate when placing left jam plate 3 and right jam plate 4. Two sets of pushing and clamping mechanisms and a left upper cross beam positioning seat assembly 8 are arranged on the left supporting seat assembly 7; the pushing and clamping mechanism comprises a first pushing limiting plate 10 and a second limiting plate 101 which are used for being matched with the width adjustment of the gantry; the thin cylinder 20 is used for pushing the limiting plate to move, the guide post I19 and the guide post II 191 are used for ensuring that the limiting plate is pushed to move linearly, and the stroke for pushing the limiting plate is controlled by the nut I21 and the nut II 211 which are assembled at the tail parts of the guide post I19 and the guide post II 191. Two ends of the first pushing limiting plate 10 are provided with gantry limiting blocks, a first corner cylinder 9 and a second corner cylinder 11; and two ends of the working surface of the right supporting seat assembly 17 are symmetrically provided with a corner cylinder, a right upper crossbeam positioning seat assembly 12 and a gantry positioning block.
The utility model discloses application method does: the thin cylinder 20 is controlled by an operation button to push a first limiting plate 10 on the left supporting seat assembly 7, a second limiting plate 101 is enabled to be located at the position of the width dimension of the needed tailor-welded framework, the left locking plate 3 and the right locking plate 4 are sequentially placed, a positioning block arranged on a right locking plate positioning plate 16 is used for positioning the left locking plate 3 and the right locking plate 4 through a left locking plate positioning plate 13 adjacent to the left supporting seat assembly 7 and the right supporting seat assembly 17, and the quick clamp 14 is pushed to enable the left locking plate 3 and the right locking plate 4 to be in a clamping state; placing the front door frame 1, and controlling a front end corner cylinder II 11 and a corner cylinder IV 18 by pushing a positioning block arranged at the front end of a limiting plate I10 and positioning a front door frame positioning block arranged on the working surface of a right supporting seat assembly 17 so as to enable the front door frame to be in a clamping state; placing the rear door frame 2, and controlling a rear end corner cylinder I9 and a corner cylinder III 15 by pushing a positioning block arranged at the rear end of a limiting plate I10 and a door frame positioning block arranged at the rear end of the working surface of a right supporting seat assembly 17 to position so as to enable the rear door frame to be in a clamping state; and then the upper crossbeam 5 is placed on the front door frame 1 and the rear door frame 2, and is positioned through the left upper crossbeam positioning seat assembly 8 and the right upper crossbeam positioning seat assembly 12. I.e. positioning and clamping of all parts is completed and tack welding operations can be performed (as shown in fig. 3). The tack welding is accomplished, through control button, makes preceding, back corner cylinder be in the open mode, and slim cylinder 20 is controlled to the rethread, makes the limiting plate move to the outside, can conveniently take out aircraft bonnet skeleton this moment, carries out next and adds the welding process again.
The utility model discloses be equipped with slim cylinder because of left supporting seat subassembly for promote the limiting plate and be in different positions, and change the front end screw rod of quick anchor clamps, thereby realize the tailor-welding of the aircraft bonnet skeleton of different portal widths through controlling slim cylinder.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a loader aircraft bonnet skeleton split welding device, connects upper beam and lower jam plate through split welding device welded connection between the preceding portal of aircraft bonnet skeleton and the back portal, its characterized in that: the tailor-welding device comprises a bottom plate assembly, a supporting seat assembly, a beam positioning seat assembly and a limiting clamping device; the supporting seat assembly comprises a left supporting seat assembly and a right supporting seat assembly which are symmetrically arranged at two ends of the same side of the plate surface of the bottom plate assembly and used for placing front and rear door frames of the hood framework, the left supporting seat assembly and the right supporting seat assembly are respectively provided with action surfaces which are relatively parallel, the two action surfaces are vertical to the plane where the door frames of the hood framework are located, and the two action surfaces are vertical to the plate surface of the bottom plate assembly; the action surfaces of the left supporting seat assembly and the right supporting seat assembly are respectively provided with a beam positioning seat assembly for fixing an upper beam of the hood framework; and the action surfaces of the left supporting seat assembly and the right supporting seat assembly are respectively provided with a limiting clamping device for limiting the position of a gantry of the hood framework.
2. The loader cowl frame tailor welded assembly of claim 1 wherein: the limiting and clamping device arranged on the left supporting seat assembly is a first limiting and clamping device, and the first limiting and clamping device comprises a first limiting plate, a second limiting plate, a corner cylinder, a thin cylinder, a locking plate positioning plate and a positioning block; the middle part of the action surface of the left support seat assembly is provided with a first limiting plate which can move back and forth perpendicular to the action surface and is used for clamping the front door frame and the rear door frame, and two ends of the first limiting plate are respectively provided with a corner cylinder and a positioning block which are used for limiting the positions of the front door frame and the rear door frame of the hood framework; a second limiting plate which can move back and forth perpendicular to the action surface and is used for clamping the front and rear door frames and the lower locking plate is arranged on one side, close to the plate surface of the bottom plate assembly, of the action surface of the left supporting seat assembly, and two ends of the second limiting plate are respectively provided with a corner cylinder used for limiting the positions of the front and rear door frames and the lower locking plate of the hood framework; a locking plate positioning plate for placing a lower locking plate is arranged on one side, close to the action surface of the left supporting seat assembly, of the surface of the bottom plate assembly; thin cylinders for telescopically moving the limiting plates are arranged between the first limiting plate and the second limiting plate and the left support seat assembly.
3. The loader cowl frame tailor welded assembly of claim 2 wherein: a limiting and clamping device arranged on the right supporting seat assembly is a limiting and clamping device II, and the limiting and clamping device II comprises a corner cylinder, a locking plate positioning plate and a positioning block; corner cylinders and positioning blocks for limiting the positions of front and rear door frames of the hood framework are arranged on two sides of the middle part of the action surface of the right support seat assembly and correspond to the first limiting plate of the left support seat assembly; two ends of the acting surface of the right supporting seat assembly, which are close to one side of the plate surface of the bottom plate assembly, correspond to the limiting plates of the left supporting seat assembly, and are provided with corner cylinders for limiting the positions of the front and rear door frames and the lower lock plate of the hood framework; and a locking plate positioning plate for placing a lower locking plate is arranged on one side of the plate surface of the bottom plate assembly, which is close to the action surface of the right supporting seat assembly.
4. The loader cowl frame tailor welded assembly of claim 3 wherein: and the two ends of the lock plate positioning plate are respectively provided with a positioning block for limiting the position of the lower lock plate.
5. The loader cowl frame tailor welded assembly of claim 4 wherein: and a quick clamp for limiting the position of the lower lock plate is arranged on the bottom plate assembly between the left supporting seat assembly and the right supporting seat assembly.
6. The loader cowl frame tailor welded assembly of claim 5 wherein: a first guide post which ensures that the plate surface of the first limiting plate is parallel to and vertically moves relative to the action surface of the left support seat assembly is arranged between the first limiting plate and the left support seat assembly, and the first guide post is vertically connected with the first limiting plate; the number of the first guide posts is greater than or equal to 2.
7. The loader cowl frame tailor welded assembly of claim 6 wherein: a second guide post which ensures that the plate surface of the second limiting plate is parallel to and vertically moves relative to the action surface of the left support seat assembly is arranged between the second limiting plate and the left support seat assembly, and the second guide post is vertically connected with the second limiting plate; the number of the second guide columns is greater than or equal to 2.
8. The loader cowl frame tailor welded assembly of claim 7 wherein: and a first nut for limiting the moving distance of the first limiting plate is arranged at one end, far away from the first limiting plate, of the first guide post.
9. The loader cowl frame tailor welded assembly of claim 8 wherein: and a second nut for limiting the moving distance of the second limiting plate is arranged at one end, far away from the second limiting plate, of the second guiding column.
10. The loader cowl frame tailor welded assembly of claim 9 wherein: and hole sites for positioning the upper cross beams of the hood frameworks with different widths are arranged on the cross beam positioning seat assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021207948.1U CN212946231U (en) | 2020-06-24 | 2020-06-24 | Loader hood skeleton split welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021207948.1U CN212946231U (en) | 2020-06-24 | 2020-06-24 | Loader hood skeleton split welding device |
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| Publication Number | Publication Date |
|---|---|
| CN212946231U true CN212946231U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021207948.1U Expired - Fee Related CN212946231U (en) | 2020-06-24 | 2020-06-24 | Loader hood skeleton split welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212946231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492284A (en) * | 2021-09-07 | 2021-10-12 | 山东明宇重工机械有限公司 | Automatic welding device for loader hood |
| CN116604262A (en) * | 2023-07-03 | 2023-08-18 | 徐工集团工程机械股份有限公司科技分公司 | Supporting device for welding loader hood framework |
-
2020
- 2020-06-24 CN CN202021207948.1U patent/CN212946231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492284A (en) * | 2021-09-07 | 2021-10-12 | 山东明宇重工机械有限公司 | Automatic welding device for loader hood |
| CN116604262A (en) * | 2023-07-03 | 2023-08-18 | 徐工集团工程机械股份有限公司科技分公司 | Supporting device for welding loader hood framework |
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Granted publication date: 20210413 |