CN113369787A - Assembly welding method and welding tool for space bent pipe of all-terrain vehicle - Google Patents
Assembly welding method and welding tool for space bent pipe of all-terrain vehicle Download PDFInfo
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- CN113369787A CN113369787A CN202110540678.9A CN202110540678A CN113369787A CN 113369787 A CN113369787 A CN 113369787A CN 202110540678 A CN202110540678 A CN 202110540678A CN 113369787 A CN113369787 A CN 113369787A
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- 238000003466 welding Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 2
- 239000004404 sodium propyl p-hydroxybenzoate Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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Abstract
The invention discloses an assembly welding method and a welding tool for a space bent pipe of an all-terrain vehicle, wherein the assembly welding method comprises the following steps: step one, assembling parts of a space bent pipe; step two, welding the space bent pipe; the welding frock includes: the main board supports the bottom of the space bent pipe at multiple points; the positioning plate is obliquely arranged on the main plate and used for supporting the upwarp section of the space bent pipe; the part sections forming the space bent pipe are respectively and fixedly positioned on the positioning plate and the surface of the main board panel; when the space elbow needs to be welded, the part sections forming the space elbow are respectively fixedly positioned on the positioning plate and the surface of the main board panel to obtain support, so that the support for the part sections forming the space elbow is guaranteed not to have height difference, meanwhile, multiple times of adjustment is not needed, the problem that the height difference occurs in different part sections of the space elbow is solved, and the requirement that the whole space position precision after the space elbow is welded meets the design is guaranteed.
Description
Technical Field
The invention relates to an assembly welding method and a welding tool for a space bent pipe of an all-terrain vehicle, and belongs to the technical field of pipeline welding.
Background
When the space elbow pipe which can adapt to all terrain, water area and all day and is used on the all terrain vehicle with amphibious function is welded, the requirement on the precision of the whole space position formed after welding is high because the elbow pipe is arranged on an engine; during conventional welding, as the outer peripheries of the two ends of the bent pipe are provided with the convex outer circular rings, position looseness is easy to occur during assembly welding, and the accuracy of the whole space position after welding cannot meet the requirement;
in a multi-degree-of-freedom positioning welding clamp for a bent pipe, which is disclosed in the Chinese patent CN112404865A, the bent pipe forms a multi-point support from the bottom through a clamping block and a supporting block, the clamping block and the supporting block need to be adjusted for many times in order to ensure the accuracy of a welding position, and once the height difference of the supporting points of the clamping block and the supporting block occurs, the height difference occurs in different part sections of the bent pipe in space, so that the accuracy of the whole space position after welding cannot meet the requirement.
Disclosure of Invention
In order to solve the technical problem, the invention provides an assembly welding method and a welding tool for a space bent pipe of an all-terrain vehicle.
The invention is realized by the following technical scheme.
The invention provides an assembly welding method for a space elbow of an all-terrain vehicle, which comprises the following steps:
step one, assembling parts of a space bent pipe; and step two, welding the space bent pipe.
The first step is that the assembly of the parts of the space elbow comprises the following steps: the upwarp section of space return bend is placed on the locating plate top panel space of a whole page, first bend section, the straight tube section, the second bend section, last flat section is placed in proper order on the mainboard panel space of a whole page, the prefabricated structure of space return bend is at the locating plate, obtain the support on the mainboard panel space of a whole page, the space return bend is through with locating pin A, locating pin B, locating pin C, locating pin D, the position adjustment location is carried out in the contact of locating pin E, the upwarp section, the protruding outer ring of last flat section corresponds respectively and waist shape round hole A, waist shape round hole B cooperation is spacing from the axial and is stable, then through pressing from both sides A fast, press from both sides B fast, press from both sides C fast, press from both sides D fast and carry out ejecting from radial fixed clamp tightly, make the space return bend form a stable prefabricated shaping position structure.
Step two, the welding of the space bent pipe comprises the following steps: welding the four welding seams of the upwarp section and the first bent section, the first bent section and the straight section, the straight section and the second bent section, and the second bent section and the last flat section in the step I, wherein during welding, the space bent pipe is supported on the positioning plate and the surface of the main board panel, so that a stable prefabricated forming position structure is formed, the height difference is not generated due to looseness, the integral space position precision of the space bent pipe after welding meets the design requirement, and after welding is completed, all the quick clamps are released to completely take out the welded space bent pipe.
In the second welding step, the upwarp section and the first bend section, and the first bend section and the straight section are welded in sequence, and when the first bend section is welded, the first bend section is pushed by holding the outer side of the bending inner diameter of the first bend section by hands, so that the first bend section is fixedly positioned at the positioning pin B for stable welding.
The welding tool used in the assembly welding method for the space elbow of the all-terrain vehicle comprises the following steps: the main board supports the bottom of the space bent pipe at multiple points;
the positioning plate is obliquely arranged on the main plate and used for supporting the upwarp section of the space bent pipe;
the parts forming the space elbow are respectively fixed and positioned on the positioning plate and the surface of the main board panel.
The bottom of the positioning plate is fixedly arranged on the main plate in an inclined mode through a rib plate.
One side is fixed with quick clamp A on the locating plate, and locating pin A is installed to the opposite side, and quick clamp A ejection end is ejecting and locating pin A carries out radial clamping fixed position from radially warping up the section to the space return bend.
The positioning plate is further provided with a positioning pin B, the positioning pin B is used for positioning the inner side of the bending inner diameter of the first bent pipe section of the space bent pipe, and the first bent pipe section is pushed from the outer side of the bending inner diameter of the first bent pipe section by hand so that the first bent pipe section is fixedly positioned at the positioning pin B.
The locating plate is provided with a waist-shaped round hole A for matching and limiting the outer circular ring of the upwarp section, and the outer circular ring of the upwarp section is axially limited after being matched with the waist-shaped round hole A, so that the position stability of the upwarp section is further ensured.
The fast clamp B is fixed on one side of the middle of the main board, the locating pin C is installed on the other side of the middle of the main board, the ejection end of the fast clamp B is ejected out, and the two locating pins C at intervals are used for fixing and locating the straight pipe section of the space elbow in the radial direction.
The quick clamp C is fixed on one side of the end portion of the main board, the positioning pin D is installed on the main board of the quick clamp C, and the ejection end of the quick clamp C is ejected out and the positioning pin D is fixed and positioned from the second bent pipe section of the space bent pipe in the radial direction.
Mainboard side one side is fixed with quick clamp D, installs locating pin E on the mainboard of the quick clamp D relatively, and the ejecting end of quick clamp D is ejecting and locating pin E carries out fixed positioning from the last flat section of radial to the space return bend.
Be equipped with on the mainboard and cooperate spacing waist shape round hole B with the bellied outer ring of last flat section, the bellied outer ring of last flat section cooperates the counter shaft with waist shape round hole B spacing, further guarantees the stability of last flat section position.
The quick clamp A and the positioning pin A, the positioning pin B, the quick clamp B, the two spaced positioning pins C, the quick clamp C and the positioning pin D, the quick clamp D and the positioning pin E are distributed in the shape of the radian of the space bent pipe, and the space bent pipe is clamped, fixed and positioned; when locating pin A, locating pin B, locating pin C, locating pin D are rotatable through the bearing and are installed on the mainboard, the space return bend is carried out the roll position adjustment between rotatory each locating pin, it is spacing not to carry out the axial cooperation with waist shape round hole B to reach the bellied outer ring of last flat section after the position, it is spacing to go up the bellied outer ring of upwarp section and carry out the axial cooperation of the spacing waist shape round hole A of cooperation, guarantees that the position is stable. The bottom of each quick clamp is padded with a backing plate and fixed on the main board and the positioning plate through hexagon screws.
The opposite both sides limit of mainboard is fixed with the lifting hook that lifts by crane the mainboard, and the lifting rope of the loop wheel machine of being convenient for is convenient for hang the whole on the mainboard through the lifting hook and moves.
The bottom of the main board is fixed with two supporting legs which are distributed at intervals in parallel and used for supporting and positioning the bottom of the main board, and the whole body of the main board after being installed is flat and stable through the local accurate contact of the supporting legs and the working face.
The invention has the beneficial effects that: when the space elbow needs to be welded, the part sections forming the space elbow are respectively fixedly positioned on the positioning plate and the surface of the main board panel to obtain support, so that the support for the part sections forming the space elbow is guaranteed not to have height difference, meanwhile, multiple times of adjustment is not needed, the problem that the height difference occurs in different part sections of the space elbow is solved, and the requirement that the whole space position precision after the space elbow is welded meets the design is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention in use;
in the figure: 1-space bending; 11-upwarping section; 12-a first bend section; 13-a straight tube section; 14-a second bend section; 15-final flat section; 21-a main board; 212-quick clamp B; 213-positioning pin C; 214-quick clamp C; 215-locating pin D; 216-quick clamp D; 217-positioning pin E; 218-kidney-shaped circular hole B; 24-a positioning plate; 241-quick clamp A; 242-locating pin a; 243-positioning pin B; 244-kidney-shaped circular hole a; 25-rib plate; 26-a hook; 27-support leg.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-2.
The invention discloses an assembly welding method of a space elbow of an all-terrain vehicle, which uses a welding tool and comprises the following steps:
step one, assembling parts of the space bent pipe 1: the upwarp section 11 of the space elbow 1 is placed on the panel surface of the upper panel of the positioning plate 24, the first elbow section 12, the straight section 13, the second elbow section 14 and the final flat section 15 are sequentially placed on the panel surface of the main panel 21, so that the prefabricated structure of the space elbow 1 is supported at multiple points on the panel surface of the positioning plate 24 and the panel surface of the main panel 21, the space elbow 1 is subjected to position adjustment and positioning through contact with the positioning pin A242, the positioning pin B243, the positioning pin C213, the positioning pin D215 and the positioning pin E217, the convex outer circular rings of the upwarp section 11 and the final flat section 15 are respectively matched with the kidney-shaped circular hole A244 and the kidney-shaped circular hole B218 to obtain stability from axial limiting, and then are ejected through the quick clamp A241, the quick clamp B212, the quick clamp C214 and the quick clamp D216 to be fixed and clamped from radial direction, so that the space elbow 1 forms a stable prefabricated forming position structure.
Step two, welding the space bent pipe 1: welding four welding seams of the upwarp section 11 and the first bent pipe section 12, the first bent pipe section 12 and the straight pipe section 13, the straight pipe section 13 and the second bent pipe section 14, and the second bent pipe section 14 and the final flat section 15 in the first step, and forming a stable prefabricated forming position structure without loosening and generating height difference due to the fact that the space bent pipe 1 is supported by multiple points on the positioning plate 24 and the panel layout of the main board 21 during welding, so that the whole space position precision of the space bent pipe 1 after welding meets the design requirement, and after welding is completed, releasing each quick clamp to completely take out the welded space bent pipe 1.
And during welding in the second step, the upwarp section 11 and the first bend section 12, and the first bend section 12 and the straight section 13 are welded in sequence, and when the first bend section 12 is welded, the first bend section 12 is held by hand to bend the outer side of the inner diameter of the first bend section 12 and the first bend section 12 is pushed, so that the first bend section 12 is fixed and positioned at the positioning pin B243 for stable welding.
The welding tool used in the assembly welding method for the space elbow of the all-terrain vehicle comprises the following steps: a main board 21 for supporting the bottom of the space elbow 1 at multiple points;
a positioning plate 24 which is obliquely and fixedly arranged on the rear side of the main plate 21 and supports the upwarp section 11 of the space bent pipe 1 at multiple points;
the parts forming the space elbow 1 are respectively fixed and positioned on the positioning plate 24 and the panel layout of the main board 21.
When the space elbow 1 needs to be welded, the part sections forming the space elbow 1 are respectively fixedly positioned on the positioning plate 24 and the panel layout of the main board 21 to obtain multi-point support, so that the multi-point support of the part sections forming the space elbow 1 is ensured not to have height difference, and meanwhile, multiple times of adjustment is not needed, the problem of height difference of different part sections of the space elbow 1 is solved, and the requirement that the whole space position precision of the welded space elbow 1 meets the design is ensured.
The bottom of the positioning plate 24 is fixedly arranged on the main plate 21 in an inclined manner through a rib plate 25.
A quick clamp a241 is fixed on one side (left side in the figure) of the positioning plate 24, a positioning pin a242 is fixed on the other side (right side in the figure) or rotatably installed through a bearing, and the ejection end of the quick clamp a241 is ejected out and the positioning pin a242 radially clamps and fixes the upwarp section 11 of the space elbow 1.
A positioning pin B243 is further fixedly or rotatably mounted on the positioning plate 24 through a bearing, the positioning pin B243 positions the inner side of the bending inner diameter of the first bent pipe section 12 of the space bent pipe 1, and the first bent pipe section 12 is pushed from the outer side of the bending inner diameter of the first bent pipe section 12 by hand, so that the first bent pipe section 12 is fixedly positioned at the positioning pin B243.
The positioning plate 24 located between the quick clamp a241 and the positioning pin a242 is provided with a kidney-shaped round hole a244 for matching and limiting the outer ring protruding from the upwarp section 11, and the outer ring protruding from the upwarp section 11 is matched with the kidney-shaped round hole a244 for axial limiting, so that the position stability of the upwarp section 11 is further ensured.
A quick clamp B212 is fixed on one side (the rear side in the figure) of the middle part of the main plate 21, two spaced positioning pins C213 are fixed on the other side (the front side in the figure) of the middle part or rotatably mounted through a bearing, and the ejection end of the quick clamp B212 ejects and the two spaced positioning pins C213 fix and position the straight pipe section 13 of the space elbow 1 in the radial direction.
A quick clamp C214 is fixed on one side (right rear upper corner side in the figure) of the end portion of the main plate 21, a positioning pin D215 is fixed or rotatably mounted on the main plate 21 of the quick clamp C214 through a bearing, and the ejection end of the quick clamp C214 is ejected out and the positioning pin D215 fixes and positions the second bent pipe section 14 of the space bent pipe 1 in the radial direction.
A quick clamp D216 is fixed on one side (right side in the drawing) of the side edge of the main plate 21, a positioning pin E217 is fixed on the main plate 21 of the quick clamp D216 or rotatably mounted through a bearing, and the ejecting end of the quick clamp D216 ejects and the positioning pin E217 fixes and positions the end flat section 15 of the space elbow 1 in the radial direction.
Be equipped with on the mainboard 21 that lies in between quick clamp D216 and locating pin E217 and cooperate spacing waist shape round hole B218 with the bellied outer ring of last flat section 15, the bellied outer ring of last flat section 15 cooperates axial spacing with waist shape round hole B218, further guarantees the stability in last flat section 15 position.
The quick clamp A241, the positioning pin A242, the positioning pin B243, the quick clamp B212, the two spaced positioning pins C213, the quick clamp C214, the positioning pin D215, the quick clamp D216 and the positioning pin E217 are distributed in the shape of radian of the space bent pipe 1 to clamp, fix and position the space bent pipe 1; when the positioning pin a242, the positioning pin B243, the positioning pin C213, and the positioning pin D215 are rotatably mounted on the main plate 21 through bearings, the rolling position of the space bent pipe 1 is adjusted between the respective rotating positioning pins, after reaching the position, the outer circular ring protruding from the end flat section 15 is not axially matched and limited with the kidney-shaped circular hole B218, and the outer circular ring protruding from the upwarp section 11 is axially matched and limited with the kidney-shaped circular hole a244, so that the position stability is ensured. The bottom of each quick clamp is padded with a backing plate and fixed on the main board 21 and the positioning plate 24 through hexagon screws. The used quick clamps are quick clamps of the gao qi 304C/304E/304H, and can also be other telescopic ejection pieces such as telescopic air rods or telescopic hydraulic rods.
The opposite both sides limit of mainboard 21 is fixed with the lifting hook 26 that lifts mainboard 21, and the lifting rope of the loop wheel machine of being convenient for is convenient for hang the whole on the mainboard 21 through lifting hook 26 and moves.
Claims (10)
1. The assembly welding method of the space elbow of the all-terrain vehicle is characterized in that a welding tool is used, and comprises the following steps: step one, assembling parts of the space bent pipe (1); and step two, welding the space bent pipe (1).
2. The assembly welding method for all-terrain vehicle space elbows of claim 1, wherein: the first step is that the part assembly of the space elbow (1) comprises the following steps: the upwarp section (11) of the space elbow (1) is placed on the panel layout on the positioning plate (24), the first elbow section (12), the straight pipe section (13), the second elbow section (14) and the final flat section (15) are sequentially placed on the panel layout of the main plate (21), a prefabricated structure of the space elbow (1) is supported on the positioning plate (24) and the panel layout of the main plate (21), the space elbow (1) is subjected to position adjustment and positioning through contact with the positioning pin A (242), the positioning pin B (243), the positioning pin C (21) (3), the positioning pin D (215) and the positioning pin E (217), the upwarp section (11) and the final flat section (15) are respectively and correspondingly matched with the waist-shaped round hole A (244) and the waist-shaped round hole B (218) to obtain stability from axial limiting, and then the upwarp section (241), the fast clamp B (212), the fast clamp C (214), The quick clamp D (216) performs ejection to fix and clamp the space elbow (1) from the radial direction, so that the space elbow (1) forms a stable prefabricated forming position structure.
3. The assembly welding method for the space elbow of the all-terrain vehicle as claimed in claim 2, characterized in that: step two, the welding of the space elbow (1) comprises the following steps: and welding four welding seams of the upwarp section (11) and the first bent section (12), the first bent section (12) and the straight section (13), the straight section (13) and the second bent section (14), and the second bent section (14) and the last flat section (15) in the first step, wherein the space bent pipe (1) is supported on the panel layout of the positioning plate (24) and the main plate (21) during welding.
4. A welding tool for use in the assembly welding method of the all-terrain vehicle space elbow of any one of claims 1 to 3, comprising: a main plate (21) for supporting the bottom of the space elbow (1);
the positioning plate (24) is obliquely arranged on the main plate (21) and supports the upwarp section (11) of the space bent pipe (1);
the parts forming the space elbow (1) are respectively fixed and positioned on the panel surface of the positioning plate (24) and the main board (21).
5. The welding tool of claim 4, wherein: the bottom of the positioning plate (24) is obliquely and fixedly arranged on the main plate (21) through a rib plate (25).
6. The welding tooling of claim 5, wherein: the positioning plate (24) is further provided with a positioning pin B (243), and the positioning pin B (243) positions the inner side of the bending inner diameter of the first bent pipe section (12) of the space bent pipe (1);
and a waist-shaped round hole A (244) which is used for axially matching and limiting the convex outer ring of the upwarp section (11) is arranged on the positioning plate (24).
7. The welding tool of claim 6, wherein: a quick clamp B (212) is fixed on one side of the middle part of the main board (21), a positioning pin C (213) is installed on the other side of the middle part, and the quick clamp B (212) and the positioning pin C (213) can be clamped, fixed and positioned;
mainboard (21) tip one side is fixed with quick clamp C (214), installs locating pin D (215) on mainboard (21) of the quick clamp C (214) relatively, and quick clamp C (214) and locating pin D (215) can press from both sides tight fixed position.
8. The welding tooling of claim 7, wherein: a quick clamp D (216) is fixed on one side of the side edge of the main board (21), a positioning pin E (217) is installed on the main board (21) opposite to the quick clamp D (216), and the quick clamp D (216) and the positioning pin E (217) can be clamped, fixed and positioned;
a waist-shaped round hole B (218) which is axially matched and limited with the outer circular ring protruded from the tail flat section (15) is arranged on the main plate (21);
the quick clamp A (241), the positioning pin A (242), the positioning pin B (243), the quick clamp B (212), the two spaced positioning pins C (213), the quick clamp C (214), the positioning pin D (215), the quick clamp D (216) and the positioning pin E (217) are distributed in the shape of the radian of the space bent pipe (1) to clamp, fix and position the space bent pipe (1); when the positioning pins A (242), B (243), C (213) and D (215) are rotatably mounted on the main plate (21) via bearings, the space bent pipe (1) performs rolling position adjustment between the respective rotating positioning pins.
9. The welding tooling of claim 4 or 8, wherein: and lifting hooks (26) for lifting the main board (21) are fixed on two opposite side edges of the main board (21).
10. The welding tooling of claim 9, wherein: the bottom of the main plate (21) is fixed with two parallel supporting legs (27) which are distributed at intervals and used for supporting and positioning the bottom of the main plate (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540678.9A CN113369787A (en) | 2021-05-18 | 2021-05-18 | Assembly welding method and welding tool for space bent pipe of all-terrain vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540678.9A CN113369787A (en) | 2021-05-18 | 2021-05-18 | Assembly welding method and welding tool for space bent pipe of all-terrain vehicle |
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| CN113369787A true CN113369787A (en) | 2021-09-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113977129A (en) * | 2021-12-06 | 2022-01-28 | 江苏利柏特股份有限公司 | Prefabricated welding method for modular manufacturing pipe section of chemical equipment |
| CN118218168A (en) * | 2024-05-27 | 2024-06-21 | 山东鲁源消防科技有限公司 | Plastic-coated device in heavy-calibre slot pipe fitting |
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| CN108856995A (en) * | 2018-07-02 | 2018-11-23 | 广东骏驰科技股份有限公司 | A kind of weld clamp device of how curved position pipe fitting and bracket |
| CN208854070U (en) * | 2018-09-26 | 2019-05-14 | 江苏牧羊丰尚油脂工程技术有限公司 | A kind of welding tooling for spray tube import component |
| CN110948153A (en) * | 2018-09-26 | 2020-04-03 | 合肥华瑞汽车零部件有限公司 | Fender bracket tooling |
| CN208977176U (en) * | 2018-11-02 | 2019-06-14 | 无锡市五星弹性元件厂 | The erection welding tooling of oil return pipe of supercharger |
| CN209363967U (en) * | 2018-12-24 | 2019-09-10 | 佛山市联润家具有限公司 | A kind of chair receptacle fixture for manipulator welding |
| CN210435601U (en) * | 2019-06-20 | 2020-05-01 | 厦门力德电器制造有限公司 | Welding tool for trolley handle |
| CN111958157A (en) * | 2020-07-13 | 2020-11-20 | 南京金龙客车制造有限公司 | Light bus instrument tubular beams welding frock |
| CN213135617U (en) * | 2020-07-31 | 2021-05-07 | 北京北机机电工业有限责任公司 | Elbow welding positioning device |
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| CN113977129A (en) * | 2021-12-06 | 2022-01-28 | 江苏利柏特股份有限公司 | Prefabricated welding method for modular manufacturing pipe section of chemical equipment |
| CN113977129B (en) * | 2021-12-06 | 2022-11-18 | 江苏利柏特股份有限公司 | Prefabricated welding method for modular manufacturing pipe section of chemical equipment |
| CN118218168A (en) * | 2024-05-27 | 2024-06-21 | 山东鲁源消防科技有限公司 | Plastic-coated device in heavy-calibre slot pipe fitting |
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