CN112264748A - Welding equipment for lower coaming plate of agricultural vehicle hood - Google Patents
Welding equipment for lower coaming plate of agricultural vehicle hood Download PDFInfo
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- CN112264748A CN112264748A CN202011166057.0A CN202011166057A CN112264748A CN 112264748 A CN112264748 A CN 112264748A CN 202011166057 A CN202011166057 A CN 202011166057A CN 112264748 A CN112264748 A CN 112264748A
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- chuck
- fixing
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- mounting
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- 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
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a welding device for a lower surrounding plate of an agricultural vehicle hood, which comprises a clamping bottom plate, wherein a side fixing frame is arranged on the clamping bottom plate, an auxiliary fixing frame is arranged on one side of the side fixing frame, a plurality of main fixing frames are also arranged on the clamping bottom plate, the main fixing frames are axially distributed in an array manner, a downward pressing fixing frame is arranged on the clamping bottom plate, a first tightening frame and a second tightening frame are also arranged on the clamping bottom plate, the side fixing frame comprises a first fixing plate, a first mounting column is arranged on the first fixing plate, first fixing screws distributed in an array manner are also arranged on the first fixing plate, a first mounting arm is arranged on one side of the first mounting column, a mounting arm fixing block is arranged on the other side of the first mounting column, a first air cylinder is arranged on one side of the first mounting arm, and the first air. The invention is convenient for fixing the irregular lower enclosing plate of the agricultural vehicle hood, improves the fixing property, is beneficial to improving the welding quality, reduces the welding difficulty and is beneficial to the operation of operators.
Description
Technical Field
The invention relates to the field of vehicle production tools, in particular to welding equipment for a lower enclosing plate of a hood of an agricultural vehicle.
Background
The agricultural truck is a general name for truck suitable for agricultural transportation, including truck specially designed for agricultural transportation and various special-purpose trucks for modifying common truck for agricultural transportation, and the agricultural truck includes live fish transport truck, livestock and poultry transport truck, bee-keeping truck, grain bulk transport truck, feed transport truck, self-loading and unloading wood transport truck, cold-storage thermal-insulation truck and edible liquid tank truck, etc. and its structure and performance are characterized by that it uses diesel engine, beam frame is firm and reliable, four-wheel drive has differential lock, cross-country pattern tyre or low-pressure wide-section tyre, single tyre, front and rear axles have same wheel distance, and have higher ground clearance, larger approach angle, longitudinal pass angle and departure angle, and wheel distance is shorter and wider, so that it has better passability, maneuverability and transverse stability, and is suitable for field, And (5) carrying the boxes in the pasture. And the second gear box has more grades and is provided with a high-low grade two-stage transfer case. The tractor can run at low speed to cooperate with the operation of agricultural machinery, has larger hook traction force, can also run at high speed on a road, and has better adaptability. There are mechanical and hydraulic power output devices to provide power for various professional transportation accessories and the carriage is equipped for different purposes. The cab has good visual field, can be operated safely and conveniently, has simple structure and low cost, and some detachable canvas canopies are used. No matter what kind of agricultural vehicle, compare in normal car, the bounding wall all distinguishes very greatly under the aircraft bonnet, be different from the car, the bounding wall is gone because often at the relatively poor road of road conditions under the agricultural vehicle aircraft bonnet, damage of colliding with easily, need change, but be different from car mass production, application integrated into one piece casting, the agricultural vehicle is in order to practice thrift manufacturing cost, adopt welded manufacturing more, current welding equipment is not convenient for adjust according to the bounding wall of different radians, to this kind of condition, a bounding wall seam equipment under the agricultural vehicle aircraft bonnet is proposed at present.
Disclosure of Invention
The invention aims to provide welding equipment for the lower enclosing plate of the agricultural vehicle hood, which is convenient for fixing the irregular lower enclosing plate of the agricultural vehicle hood, improves the fixing property, is favorable for improving the welding quality, reduces the welding difficulty and is favorable for the operation of operators.
The purpose of the invention can be realized by the following technical scheme:
a welding device for a lower surrounding plate of an agricultural vehicle hood comprises a clamping bottom plate, wherein a side fixing frame is arranged on the clamping bottom plate, an auxiliary fixing frame is arranged on one side of the side fixing frame, a plurality of main fixing frames are further arranged on the clamping bottom plate, the main fixing frames are distributed in an axial array mode, a downward pressing fixing frame is arranged on the clamping bottom plate, and a first tightening frame and a second tightening frame are further arranged on the clamping bottom plate;
the side fixing frame comprises a first fixing plate, a first mounting column is arranged on the first fixing plate, first fixing screws distributed in an array mode are further arranged on the first fixing plate, a first mounting arm is arranged on one side of the first mounting column, a mounting arm fixing block is arranged on the other side of the first mounting column, a first air cylinder is arranged on one side of the first mounting arm and fixed on one side of the first mounting arm through a first mounting plate, a first air head is arranged at the front end of the first air cylinder, a first air rotating shaft is arranged on the first air head, a first air pull arm is arranged on the first air rotating shaft, a first chuck is arranged at the top end of the first air pull arm, a first side chuck rod is arranged on one side of the first air head, a first side chuck is arranged on the first side chuck rod, a connecting arm is arranged on one side of the first side chuck rod, a connecting arm is arranged at one end of the first side chuck, a connecting rod is arranged.
Furthermore, the auxiliary fixing frame comprises a second fixing plate, a second mounting column is arranged on the second fixing plate, second fixing screws are further arranged on the second fixing plate in an array distribution, a first reinforcing fixing plate is arranged on one side of the second mounting column, a second air cylinder is arranged on one side of the second mounting column, a second mounting plate is arranged between the second air cylinder and the second mounting column, a second pneumatic head is arranged on the second air cylinder, a pneumatic rotating shaft hole is arranged on the second pneumatic head, a first pneumatic rotating shaft which is the same as that on the first pneumatic head is arranged on the pneumatic rotating shaft hole, the first chuck fixing rod is arranged on the other side of the second mounting column, first adjusting screws distributed in an array mode are arranged above the first chuck fixing rod, a second chuck is arranged on the first chuck fixing rod, a second side chuck rod is arranged at the top end of the first pneumatic pull arm on the second pneumatic head, and a third chuck is arranged on the second side chuck rod.
Further, the main fixing frame comprises a third fixing plate, third fixing screws distributed in an array mode are arranged on the third fixing plate, a third mounting column is arranged on the third fixing plate, a second chuck fixing rod is arranged on one side of the third mounting column, second adjusting screws distributed in an array mode are arranged on the second chuck fixing rod, a fourth chuck is further arranged on the second chuck fixing rod, second anti-slip patterns distributed in an array mode are arranged in the lower end of the fourth chuck, a third air cylinder is arranged on the other side of the third mounting column, a third mounting plate is directly arranged on the third air cylinder and the third mounting column, a third pneumatic head is arranged at the upper end of the third air cylinder, a second pneumatic rotating shaft is arranged on the third pneumatic head, a second pneumatic pull arm is arranged on the second pneumatic rotating shaft, a fifth chuck is arranged at the top end of the second pneumatic pull arm, a sixth chuck is arranged at the lower end of the fifth chuck, and the sixth chuck is connected with the.
Furthermore, the first tightening frame comprises a fourth fixing plate, a second reinforcing fixing plate is arranged on the fourth fixing plate, a fourth mounting column is arranged on the fourth fixing plate, a seventh chuck is arranged on one side of the fourth mounting column, and a tightening head is arranged at one end of the seventh chuck.
Furthermore, the second jacking frame comprises a fifth fixing plate, a fifth mounting column is arranged on the fifth fixing plate, adjusting holes distributed in an array mode are formed in the fifth mounting column, and an eighth chuck is arranged on one side of the fifth mounting column.
Furthermore, a sixth fixing plate is arranged at the lower end of the downward pressing fixing frame, a sixth mounting column is arranged on the sixth fixing plate, a third reinforcing fixing plate is arranged on one side of the sixth mounting column, a fourth cylinder is arranged on one side of the sixth mounting column and fixed on one side of the sixth mounting column through a fourth mounting plate, a fourth pneumatic head is arranged on the fourth cylinder, a third pneumatic rotating shaft and a third pneumatic pull arm are arranged on the fourth pneumatic head, a ninth chuck is arranged on the third pneumatic pull arm, a top mounting block is arranged on the ninth chuck, and a downward pressing tip is arranged on the top mounting block.
The invention has the beneficial effects that:
1. the invention is convenient for fixing the irregular lower enclosing plate of the agricultural vehicle hood, improves the fixing property, is beneficial to improving the welding quality, reduces the welding difficulty and is beneficial to the operation of operators.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a welding device for a lower enclosing plate of a hood of an agricultural vehicle, which is disclosed by the invention;
FIG. 2 is a schematic view of the side mount structure of the present invention;
FIG. 3 is a schematic view of the main frame of the present invention;
FIG. 4 is a schematic view of an auxiliary fixing frame according to the present invention;
fig. 5 is a schematic view of the structure of the pressing fixture of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The utility model provides an agricultural vehicle aircraft bonnet lower bounding wall seam equipment, includes centre gripping bottom plate 1, as shown in fig. 1, fig. 2, is equipped with side mount 2 on the centre gripping bottom plate 1, and 2 one sides of side mount are equipped with supplementary mount 3, still are equipped with a plurality of main mounts 4 on the centre gripping bottom plate 1, and main mount 4 is axial array distribution, is equipped with down on the centre gripping bottom plate 1 and pushes down mount 7, still is equipped with first tight frame 5 and the tight frame 6 in second top on the centre gripping bottom plate 1.
The side fixing frame 2 includes a first fixing plate 21, as shown in fig. 1 and fig. 2, a first mounting column 22 is disposed on the first fixing plate 21, first fixing screws 211 distributed in an array are further disposed on the first fixing plate 21, a first mounting arm 23 is disposed on one side of the first mounting column 22, a mounting arm fixing block 24 is disposed on the other side of the first mounting column 22, a first air cylinder 26 is disposed on one side of the first mounting arm 23, the first air cylinder 26 is fixed on one side of the first mounting arm 23 through a first mounting plate 25, a first air head 27 is disposed at a front end of the first air cylinder 26, a first air rotating shaft 261 is disposed on the first air head 27, a first air pulling arm 271 is disposed on the first air rotating shaft 261, a first chuck 272 is disposed at a top end of the first air pulling arm 271, a first side chuck 29 is disposed on one side of the first air head 27, a first side chuck 281 is disposed on the first side chuck 29, a connecting arm 28 is disposed at, the first clamping head 272 is provided with a connecting rod 273, the connecting arm 28 is connected with the connecting rod 273, and the first side clamping head 281 is provided with first anti-slip patterns 282 distributed in an array.
The auxiliary fixing frame 3 includes a second fixing plate 31, as shown in fig. 1 and 4, a second mounting column 32 is disposed on the second fixing plate 31, second fixing screws 311 are disposed on the second fixing plate 31 in an array distribution, a first reinforcing fixing plate 321 is disposed on one side of the second mounting column 32, a second air cylinder 33 is disposed on one side of the second mounting column 32, a second mounting plate 34 is disposed between the second air cylinder 33 and the second mounting column 32, a second air cylinder 331 is disposed on the second air cylinder 33, an air spindle hole 332 is disposed on the second air cylinder 331, a first air spindle 261 and a first air pulling arm 271 which are the same as those of the first air cylinder 27 are disposed on the air spindle hole 332, a first chuck fixing rod 35 is disposed on the other side of the second mounting column 32, first adjusting screws 351 are disposed above the first chuck fixing rod 35 in an array distribution, a second chuck 36 is disposed on the first chuck fixing rod 35, a second side chuck rod 38 is disposed at the top end of the first air pulling arm 271 on the second air cylinder 331, the second side chuck bar 38 is provided with a third chuck 37.
The main fixing frame 4 includes a third fixing plate 41, as shown in fig. 1 and 3, third fixing screws 411 are disposed on the third fixing plate 41 in an array, third mounting posts 42 are disposed on the third fixing plate 41, a second chuck fixing rod 43 is disposed on one side of the third mounting post 42, second adjusting screws 431 are disposed on the second chuck fixing rod 43 in an array, a fourth chuck 44 is further disposed on the second chuck fixing rod 43, second anti-slip patterns 441 are disposed in an array on a lower end of the fourth chuck 44, a third cylinder 45 is disposed on the other side of the third mounting post 42, third mounting plates 451 are directly disposed on the third cylinder 45 and the third mounting post 42, a third pneumatic head 46 is disposed on an upper end of the third cylinder 45, a second pneumatic rotating shaft 461 is disposed on the third pneumatic head 46, a second pneumatic pulling arm 47 is disposed on the second pneumatic rotating shaft 461, a fifth chuck 471 is disposed on a top end of the second pneumatic pulling arm 47, a sixth chuck 442 is disposed on a lower end of the fifth chuck, sixth jaw 442 is coupled to fourth jaw 44.
The first tightening frame 5 includes a fourth fixing plate 51, as shown in fig. 1, a second reinforcing fixing plate 52 is disposed on the fourth fixing plate 51, a fourth mounting column 53 is disposed on the fourth fixing plate 51, a seventh chuck 54 is disposed on one side of the fourth mounting column 53, and a tightening head 55 is disposed at one end of the seventh chuck 54.
The second tightening frame 6 includes a fifth fixing plate 61, as shown in fig. 1, a fifth mounting column 62 is disposed on the fifth fixing plate 61, adjusting holes 63 distributed in an array are disposed on the fifth mounting column 62, and an eighth chuck 64 is disposed on one side of the fifth mounting column 62.
The lower end of the downward pressing fixing frame 7 is provided with a sixth fixing plate 71, as shown in fig. 1 and 5, the sixth fixing plate 71 is provided with a sixth mounting column 72, one side of the sixth mounting column 72 is provided with a third reinforcing fixing plate 721, one side of the sixth mounting column 72 is provided with a fourth air cylinder 73, the fourth air cylinder 73 is fixed on one side of the sixth mounting column 72 through a fourth mounting plate 74, the fourth air cylinder 73 is provided with a fourth pneumatic head 75, the fourth pneumatic head 75 is provided with a third pneumatic rotating shaft 76 and a third pneumatic pull arm 761, the third pneumatic pull arm 761 is provided with a ninth chuck 77, the ninth chuck 77 is provided with a tip mounting block 771, and the tip mounting block 771 is provided with a downward pressing tip 78.
During the use, agricultural vehicle bonnet is down the bounding wall and is placed between each chuck, utilizes first tight frame 5 of top and the tight frame 6 of second top to push up agricultural vehicle bonnet down the bounding wall from outside to inside, and it compresses tightly agricultural vehicle bonnet down the bounding wall to push down top 78.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. A welding device for a lower surrounding plate of an agricultural vehicle hood comprises a clamping bottom plate (1) and is characterized in that a side fixing frame (2) is arranged on the clamping bottom plate (1), an auxiliary fixing frame (3) is arranged on one side of the side fixing frame (2), a plurality of main fixing frames (4) are further arranged on the clamping bottom plate (1), the main fixing frames (4) are distributed in an axial array mode, a downward pressing fixing frame (7) is arranged on the clamping bottom plate (1), and a first tightening frame (5) and a second tightening frame (6) are further arranged on the clamping bottom plate (1);
the side fixing frame (2) comprises a first fixing plate (21), a first mounting column (22) is arranged on the first fixing plate (21), first fixing screws (211) distributed in an array mode are further arranged on the first fixing plate (21), a first mounting arm (23) is arranged on one side of the first mounting column (22), a mounting arm fixing block (24) is arranged on the other side of the first mounting column (22), a first air cylinder (26) is arranged on one side of the first mounting arm (23), the first air cylinder (26) is fixed on one side of the first mounting arm (23) through a first mounting plate (25), a first pneumatic head (27) is arranged at the front end of the first air cylinder (26), a first pneumatic rotating shaft (261) is arranged on the first pneumatic head (27), a first pneumatic pull arm (271) is arranged on the first pneumatic rotating shaft (261), a first clamping head (272) is arranged at the top end of the first pneumatic pull arm (271), a first side clamping head rod (29) is arranged on one side of the first pneumatic head (27), be equipped with first side chuck (281) on first side chuck pole (29), first side chuck (281) one end is equipped with connecting arm (28), is equipped with connecting rod (273) on first chuck (272), and connecting rod (273) is connected in connecting arm (28), is equipped with first anti-skidding line (282) of array distribution in first side chuck (281).
2. The welding device for the lower enclosing plate of the agricultural vehicle hood according to claim 1, wherein the auxiliary fixing frame (3) comprises a second fixing plate (31), a second mounting column (32) is arranged on the second fixing plate (31), second fixing screws (311) distributed in an array are further arranged on the second fixing plate (31), a first reinforcing fixing plate (321) is arranged on one side of the second mounting column (32), a second cylinder (33) is arranged on one side of the second mounting column (32), a second mounting plate (34) is arranged between the second cylinder (33) and the second mounting column (32), a second pneumatic head (331) is arranged on the second cylinder (33), a pneumatic rotating shaft hole (332) is arranged on the second pneumatic head (331), a first pneumatic rotating shaft (261) and a first pneumatic pulling arm (271) which are the same as those on the first pneumatic head (27) are arranged on the pneumatic rotating shaft hole (332), and a first chuck fixing rod (35) is arranged on the other side of the second mounting column (32), first adjusting screws (351) distributed in an array mode are arranged above the first chuck fixing rod (35), a second chuck (36) is arranged on the first chuck fixing rod (35), a second side chuck rod (38) is arranged at the top end of a first pneumatic pull arm (271) on the second pneumatic head (331), and a third chuck (37) is arranged on the second side chuck rod (38).
3. The welding device for the lower coaming of the hood of the agricultural vehicle as claimed in claim 1, wherein the main fixing frame (4) comprises a third fixing plate (41), third fixing screws (411) distributed in an array are arranged on the third fixing plate (41), a third mounting column (42) is arranged on the third fixing plate (41), a second chuck fixing rod (43) is arranged on one side of the third mounting column (42), second adjusting screws (431) distributed in an array are arranged on the second chuck fixing rod (43), a fourth chuck (44) is further arranged on the second chuck fixing rod (43), second anti-skid threads (441) distributed in an array are arranged in the lower end of the fourth chuck (44), a third cylinder (45) is arranged on the other side of the third mounting column (42), a third mounting plate (451) is directly arranged on the third cylinder (45) and the third mounting column (42), and a third pneumatic head (46) is arranged at the upper end of the third cylinder (45), a second pneumatic rotating shaft (461) is arranged on the third pneumatic head (46), a second pneumatic pull arm (47) is arranged on the second pneumatic rotating shaft (461), a fifth chuck (471) is arranged at the top end of the second pneumatic pull arm (47), a sixth chuck (442) is arranged at the lower end of the fifth chuck (471), and the sixth chuck (442) is connected with the fourth chuck (44).
4. The welding equipment for the lower enclosing plate of the hood of the agricultural vehicle according to claim 1, wherein the first tightening frame (5) comprises a fourth fixing plate (51), a second reinforcing fixing plate (52) is arranged on the fourth fixing plate (51), a fourth mounting column (53) is arranged on the fourth fixing plate (51), a seventh chuck (54) is arranged on one side of the fourth mounting column (53), and one end of the seventh chuck (54) is provided with a tightening head (55).
5. The welding equipment for the lower enclosing plate of the hood of the agricultural vehicle according to claim 1, wherein the second tightening frame (6) comprises a fifth fixing plate (61), a fifth mounting column (62) is arranged on the fifth fixing plate (61), adjusting holes (63) distributed in an array are formed in the fifth mounting column (62), and an eighth chuck (64) is arranged on one side of the fifth mounting column (62).
6. The agricultural vehicle bonnet rocker seaming apparatus of claim 1, wherein, the utility model discloses a pneumatic pull arm of push down, including push down mount (7), be equipped with sixth fixed plate (71) down, be equipped with sixth erection column (72) on sixth fixed plate (71), sixth erection column (72) one side is equipped with third reinforcing fixed plate (721), sixth erection column (72) one side is equipped with fourth cylinder (73), fourth cylinder (73) are fixed in sixth erection column (72) one side through fourth mounting panel (74), be equipped with fourth pneumatic head (75) on fourth cylinder (73), be equipped with third pneumatic pivot (76) and third pneumatic pull arm (761) on fourth pneumatic head (75), be equipped with ninth chuck (77) on third pneumatic pull arm (761), be equipped with top installation block (771) on ninth chuck (77), be equipped with push down tip (78) on top installation block (771).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166057.0A CN112264748A (en) | 2020-10-27 | 2020-10-27 | Welding equipment for lower coaming plate of agricultural vehicle hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011166057.0A CN112264748A (en) | 2020-10-27 | 2020-10-27 | Welding equipment for lower coaming plate of agricultural vehicle hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112264748A true CN112264748A (en) | 2021-01-26 |
Family
ID=74342058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011166057.0A Withdrawn CN112264748A (en) | 2020-10-27 | 2020-10-27 | Welding equipment for lower coaming plate of agricultural vehicle hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112264748A (en) |
Cited By (1)
| 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 |
-
2020
- 2020-10-27 CN CN202011166057.0A patent/CN112264748A/en not_active Withdrawn
Cited By (1)
| 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 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210126 |