CN115351468A - Automatic welding machine for rigid waterproof casing pipe - Google Patents
Automatic welding machine for rigid waterproof casing pipe Download PDFInfo
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- CN115351468A CN115351468A CN202211066775.XA CN202211066775A CN115351468A CN 115351468 A CN115351468 A CN 115351468A CN 202211066775 A CN202211066775 A CN 202211066775A CN 115351468 A CN115351468 A CN 115351468A
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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
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
-
- 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
- B23K37/0538—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 for rotating tubes, e.g. rollers
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a rigid waterproof sleeve automatic welding machine which comprises a case (1), a main shaft rotating mechanism (2) arranged on the case (1), a workpiece clamping module and a welding module, wherein a three-jaw chuck (3) is arranged on the main shaft rotating mechanism, the case (1) is provided with a processing platform, the workpiece clamping module is movably arranged on the processing platform, the welding module is positioned on the upper end face of the workpiece clamping module and used for welding a clamped workpiece, part of the workpiece is clamped on the three-jaw chuck (3), and part of the workpiece is fixed on the workpiece clamping module. The full-automatic welding machine can realize full-welding of two sides of the rigid waterproof casing pipe at one time, does not need secondary clamping, realizes full-automatic welding, improves the working efficiency and reduces the labor intensity.
Description
Technical Field
The invention relates to a welding machine, in particular to an automatic welding machine for a rigid waterproof sleeve.
Background
The rigid waterproof casing is a common pipe fitting in pipeline engineering construction, and is also called a steel casing. The rigid waterproof casing is a steel pipe with an external wing ring (the steel plate is sleeved on the steel pipe in an annular manner), is arranged in a wall (mostly a concrete wall), is used for a common pipeline to penetrate the wall, and is beneficial to the water resistance of the wall body. The rigid waterproof casing is generally used in basements, and is distinguished from the rigid waterproof casing that a steel pipe is additionally provided with a wing ring and is used for a pipeline through-wall part without bearing pipeline vibration.
The rigid waterproof sleeve is suitable for a structure (building) with a pipeline through-wall part which does not bear pipeline vibration and telescopic deformation, and is suitable for the space limitation of the pipeline through-wall part or the updating and the reconstruction of the structure (building) or a pipeline before the pipeline installation. For areas with earthquake fortification requirements, if a rigid waterproof sleeve is adopted, flexible connection is arranged nearby on a pipeline entering a pool wall or a building outer wall.
The steel flexible waterproof sleeve is manufactured according to standard atlas S312 and S02S 404 of research and design of architectural science institute. Flexible waterproof sleeves are generally suitable for structures where the pipeline passes through the wall and is subject to vibration or strict waterproof requirements; the rigid waterproof sleeve is generally suitable for structures where the pipeline passes through the wall and requires general waterproofing; the wall where the flexible and rigid waterproof sleeve penetrates the wall is changed into a concrete wall when the concrete is not used, and the sleeve needs to be solidified in the wall at one time; the waterproof casing is applied to units such as buildings, chemical engineering, steel, tap water, sewage treatment and the like.
The effect of the rigid waterproof casing is to avoid the water surface from leaking from the outer wall, so the rigid waterproof casing must be applied to realize the sealing property under the condition of engineering construction, and the water is not easy to leak. When the waterproof sleeve is manufactured, the thickness of the wing ring and the thickness of the sleeve meet the standard requirement, and two sides of the wing ring of the waterproof sleeve are fully welded. Due to the fact that the application is very wide, production enterprises exist all over the country, but all the production enterprises are manually welded at present, and due to the fact that the manual welding cost is high, the personnel mobility is high, the production enterprises urgently need to replace manual welding with automatic welding.
Disclosure of Invention
The invention aims to solve the technical problem that the automatic welding machine for the rigid waterproof casing pipe does not need manual spot welding, is completely separated from an electric welder, realizes real automatic welding, can simultaneously operate a plurality of welding machines, lightens the labor intensity and reduces the production cost.
The invention is realized by the following technical scheme: the utility model provides a waterproof sleeve pipe automatic welder of rigidity, includes quick-witted case, sets up main shaft rotary mechanism, work piece clamping module and the welding module on quick-witted case, the machine has a processing platform on the quick-witted case, and movable the installing on the processing platform of work piece clamping module, the welding module is located the up end of work piece clamping module for weld the work piece after the centre gripping, the partial clamping of work piece is on three-jaw chuck, and the part is fixed on the work piece clamping module.
As a preferred technical scheme, the workpiece clamping module comprises a longitudinal sliding plate, the bottom of the longitudinal sliding plate is slidably mounted on the processing platform, a flange front positioning seat and a flange rear positioning seat are slidably arranged at the top of the longitudinal sliding plate, a first upright column is mounted on the flange front positioning seat, a second upright column is mounted on the flange rear positioning seat, a third upright column is also obliquely arranged on the longitudinal sliding plate between the first upright column and the second upright column, and three-point support is formed by utilizing the first upright column, the second upright column and the third upright column;
the outer side end of a first upright post of the flange front positioning seat is provided with a flange front pressing mechanism, a second upright post of the flange rear positioning seat is provided with a flange rear pressing mechanism, one side of a wing ring of a workpiece is pressed on one sides of the first upright post, the second upright post and a third upright post through the flange front pressing mechanism and the flange rear pressing mechanism, and a sleeve of the workpiece is fixed on the three-jaw chuck.
According to the preferable technical scheme, the front flange pressing mechanism comprises two symmetrically arranged front flange pressing air cylinders, the front flange pressing mechanism comprises two symmetrically arranged rear flange pressing air cylinders, gear transmission mechanisms are arranged in the front flange pressing mechanism and the rear flange pressing mechanism respectively, the output ends of the gear transmission mechanisms are provided with transmission rods, a front pressing claw is arranged at the output end of the transmission rod on the front flange pressing mechanism and a rear pressing claw is arranged at the output end of the transmission rod on the rear flange pressing mechanism.
As the preferred technical scheme, the gear transmission mechanisms all comprise a rotating gear and a transmission rack, the output ends of two symmetrically arranged pressing air cylinders are connected with the two sides of the transmission rack, the rotating gear is fixedly arranged on the transmission rod, bearings are respectively arranged at the upper end and the lower end of the transmission rod, which are positioned on the rotating gear, and the rotating gear is meshed with the transmission rack.
According to the preferable technical scheme, the top parts of the first upright column, the second upright column and the third upright column are rotatably provided with a pipe tug, one side of the pipe tug is provided with a bull eye bearing, and after a wing ring of a workpiece is pressed by a flange front pressing mechanism and a flange rear pressing mechanism, the other side surface of the wing ring is tightly attached to the bull eye bearing.
Preferably, the bottom of the second upright post is hinged on the longitudinal sliding plate through a positioning rotating shaft.
According to the preferable technical scheme, a longitudinal guide rail is arranged on the processing platform in a protruding mode, the bottom of the longitudinal sliding plate is slidably mounted on the longitudinal guide rail, a positioning screw hole is formed in the longitudinal guide rail, a locking screw is arranged at the position, corresponding to the positioning screw hole, of the longitudinal sliding plate, and the locking screw is locked in one of the positioning screw holes to position the position of the longitudinal sliding plate on the processing platform.
As the preferred technical scheme, the bottoms of the flange front positioning seat and the flange rear positioning seat are respectively provided with a guide sliding block, a guide sliding groove is formed in the longitudinal sliding plate, and the guide sliding blocks are arranged in the guide sliding grooves in a sliding mode.
According to the technical scheme, the welding module comprises a left welding gun, a right welding gun, a left gun lifting cylinder, a right gun lifting cylinder, a gun swinging device and an operation controller, the left welding gun is installed at the output end of the left gun lifting cylinder through a welding gun support, the right welding gun is installed at the output end of the right gun lifting cylinder through a welding gun support, and the gun lifting cylinder and the right gun lifting cylinder are installed at the output end of the gun swinging device.
The beneficial effects of the invention are: 1. manual spot welding is not needed, the welding is completely separated from an electric welder, and the automatic welding in the true sense is realized;
2. the equipment can be used by common workers, a plurality of workers can be operated simultaneously, the labor intensity is reduced, and the production cost is reduced;
3. various models can be welded, and the die is convenient and quick to replace;
4. the double-sided full welding is completed in one step without secondary clamping.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a workpiece clamping module according to the present invention;
FIG. 3 is an enlarged fragmentary view of the gear assembly of the present invention;
fig. 4 is a schematic structural diagram of the assembled workpiece of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
As shown in fig. 1, the automatic welder for the rigid waterproof sleeve comprises a case 1, a spindle rotating mechanism 2 arranged on the case 1, a workpiece clamping module and a welding module, wherein a three-jaw chuck 3 is mounted on the spindle rotating mechanism, a processing platform is arranged on the case 1, the workpiece clamping module is movably mounted on the processing platform, the welding module is located on the upper end face of the workpiece clamping module and used for welding a clamped workpiece, and a part of the workpiece is clamped on the three-jaw chuck 3 and a part of the workpiece is fixed on the workpiece clamping module.
As shown in fig. 2, the workpiece clamping module includes a longitudinal sliding plate 5, the bottom of the longitudinal sliding plate 5 is slidably mounted on the processing platform, a flange front positioning seat 6 and a flange rear positioning seat 17 are slidably disposed at the top of the longitudinal sliding plate 5, a first upright column 34 is mounted on the flange front positioning seat 6, a second upright column 35 is mounted on the flange rear positioning seat 17, a third upright column 33 is further obliquely disposed on the longitudinal sliding plate between the first upright column 34 and the second upright column 35, the third upright column is obliquely disposed, and is matched with the first upright column and the second upright column at two sides to form a three-point support structure for supporting the sleeve 200, and the bottom of the sleeve 200 is in rolling contact with pipe tugs at the upper ends of the first upright column, the second upright column and the third upright column, so as to reduce friction;
a flange front pressing mechanism is arranged at the outer side end of a first upright column 34 of the flange front positioning seat 6, a flange rear pressing mechanism 19 is arranged on a second upright column 35 of the flange rear positioning seat 17, one side of a wing ring of a workpiece is pressed on one sides of the first upright column 34, the second upright column 35 and a third upright column 33 through the flange front pressing mechanism and the flange rear pressing mechanism 19, and a sleeve of the workpiece is fixed on the three-jaw chuck 3.
Referring to fig. 2, the front flange pressing mechanism includes two symmetrically arranged front flange pressing cylinders 11, the front flange pressing mechanism includes two symmetrically arranged rear flange pressing cylinders 18, the front flange pressing mechanism and the rear flange pressing mechanism 19 are both provided with gear transmission mechanisms 32, the output ends of the gear transmission mechanisms 32 are both provided with transmission rods 39, wherein the output ends of the transmission rods 39 on the front flange pressing mechanism are provided with front flange pressing claws 10, the output ends of the transmission rods 39 on the rear flange pressing mechanism are provided with rear flange pressing claws 22, the front flange pressing claws 10 and the rear flange pressing claws 22 are both provided on the side opposite to the workpiece clamping side, the pressing cylinders act to drive racks to act, the racks act to drive rotating gears to rotate, the rotating gears rotate to drive the transmission rods to rotate, the transmission rods drive the pressing claws at the tops to rotate, and further press the wing rings 100 on one side of the first column, the second column and the third column, and the pressing claws are provided with bull eye bearings on the side opposite to the wing rings 100, so that the wing rings can roll and press against the side surfaces of the wing rings.
As shown in fig. 3, the gear transmission mechanisms 32 each include a rotary gear 8 and a transmission rack 9, the output ends of two symmetrically arranged pressing cylinders are connected to two sides of the transmission rack 9, the rotary gear 9 is fixedly mounted on the transmission rod 9, bearings 7 are respectively mounted at the upper end and the lower end of the rotary gear 9 on the transmission rod 9, the rotary gear 8 is meshed with the transmission rack 9, reciprocating motion of the transmission rack is realized by arranging two symmetrical pressing cylinders, and then the rotary gear is driven to rotate forward and backward, and further the pressing claws are driven to open and close.
The top parts of the first upright column 34, the second upright column 35 and the third upright column 33 are respectively rotatably provided with a pipe tug 14, the pipe tug is in rolling contact with the sleeve, one side of the pipe tug 14 is provided with a bull eye bearing 13, and after a wing ring of a workpiece is tightly pressed by a flange front pressing mechanism and a flange rear pressing mechanism, the other side surface of the wing ring is tightly attached to the bull eye bearing 13, so that the rolling contact is realized.
The bottom of the second upright column 35 is hinged to the longitudinal sliding plate 5 through the positioning rotating shaft 12, the longitudinal guide rail 4 is arranged on the processing platform in a protruding mode, the bottom of the longitudinal sliding plate 5 is slidably mounted on the longitudinal guide rail 4, the longitudinal guide rail 4 is provided with a positioning screw hole, a locking screw is arranged at the position, corresponding to the positioning screw hole, of the longitudinal sliding plate, the locking screw is locked into one of the positioning screw holes to position the position, on the processing platform, of the longitudinal sliding plate, and the position of the longitudinal sliding plate can be adjusted along the longitudinal guide rail.
The bottom of the flange front positioning seat 6 and the bottom of the flange rear positioning seat 17 are both provided with guide sliding blocks, the longitudinal sliding plate is provided with guide sliding grooves, the guide sliding blocks are arranged in the guide sliding grooves in a sliding mode, and the guide sliding blocks are matched with the guide sliding grooves to achieve position adjustment of the positioning seats.
In this embodiment, the welding module includes left welding gun 23, right welding gun 24, left gun lifting cylinder 26, right gun lifting cylinder 25, gun swinging device 27 and operation controller 30, the left welding gun is installed at the output end of left gun lifting cylinder 26 through the welding gun support, the right welding gun is installed at the output end of right gun lifting cylinder 26 through the welding gun support, and gun lifting cylinder 26 and right gun lifting cylinder 25 are installed at the output end of gun swinging device. Because the clearance between steel pipe and wing ring is great, normal welding can not be realized, so use the pendulum rifle ware in this embodiment, utilize the pendulum rifle ware to realize the luffing motion, and then realize luffing motion welding, the welding seam is a bit big also can weld, and here is the welding mode that often uses to big welding seam in the welding field, does not have specific description.
The working principle is as follows:
firstly, according to the diameter of the pipe to be welded and the position of the wing ring on the pipe, the longitudinal guide rail, the longitudinal sliding plate and the flange rear positioning seat are adjusted to be in proper positions, and the welding gun is adjusted to be in proper positions through the up-down moving module and the longitudinal adjusting handle. Before the welding starts, the pipe is sleeved on the chuck three-jaw, and the pipe is firmly supported by a spanner. Then the wing ring is sleeved on the sleeve, the flange front pressing cylinder and the flange rear pressing cylinder are pressed through the buttons, the flange front pressing claw and the flange rear pressing claw press the wing ring, as shown in figure 4, welding is started through one key by operating the controller, then the main shaft rotating mechanism rotates, and double-sided full welding is finished.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (9)
1. The utility model provides a waterproof sleeve pipe automatic welder of rigidity which characterized in that: the welding machine comprises a case (1), a main shaft rotating mechanism (2) arranged on the case (1), a workpiece clamping module and a welding module, wherein a three-jaw chuck (3) is arranged on the main shaft rotating mechanism, a machining platform is arranged on the case (1), the workpiece clamping module is movably arranged on the machining platform, the welding module is positioned on the upper end face of the workpiece clamping module and used for welding a workpiece after clamping, part of the workpiece is clamped on the three-jaw chuck (3), and part of the workpiece is fixed on the workpiece clamping module.
2. The automatic welder of rigid waterproof casings of claim 1, wherein: the workpiece clamping module comprises a longitudinal sliding plate (5), the bottom of the longitudinal sliding plate (5) is slidably mounted on the machining platform, a flange front positioning seat (6) and a flange rear positioning seat (17) are slidably arranged at the top of the longitudinal sliding plate (5), a first upright column (34) is mounted on the flange front positioning seat (6), a second upright column (35) is mounted on the flange rear positioning seat (17), and a third upright column (33) is obliquely arranged on the longitudinal sliding plate between the first upright column (34) and the second upright column (35);
the flange rear positioning mechanism is characterized in that a flange front pressing mechanism is arranged at the outer end of a first upright post (34) of the flange front positioning seat (6), a flange rear pressing mechanism (19) is installed on a second upright post (35) of the flange rear positioning seat (17), one side of a wing ring of a workpiece is pressed on one sides of the first upright post (34), the second upright post (35) and a third upright post (33) through the flange front pressing mechanism and the flange rear pressing mechanism (19), and a sleeve of the workpiece is fixed on the three-jaw chuck (3).
3. The automatic welder of a rigid waterproof bushing according to claim 2, characterized in that: compressing tightly cylinder (11) before hold-down mechanism includes the flange that two symmetries set up before the flange, compressing tightly cylinder (18) behind the flange that hold-down mechanism includes two symmetries setting before the flange, all be provided with gear drive mechanism (32) behind hold-down mechanism and the flange in hold-down mechanism (19), the output of gear drive mechanism (32) all sets up a transfer line (39), wherein, hold-down claw (10) before the transfer line (39) on the hold-down mechanism before the flange before the output mounting flange, hold-down claw (22) behind transfer line (39) on the hold-down mechanism behind the flange behind the output mounting flange, hold-down claw (10) and flange behind hold-down claw (22) relatively work piece clamping one side all is provided with the bull's eye bearing before the flange.
4. The automatic welder of rigid waterproof sleeves according to claim 3, characterized in that: the gear transmission mechanism (32) comprises a rotating gear (8) and a transmission rack (9), the output ends of two symmetrically arranged pressing air cylinders are connected with two sides of the transmission rack (9), the rotating gear (9) is fixedly arranged on the transmission rod (9), the upper end and the lower end of the transmission rod (9) which are positioned on the rotating gear (9) are respectively provided with a bearing (7), and the rotating gear (8) is meshed with the transmission rack (9).
5. The automatic welder of a rigid waterproof bushing according to claim 2, characterized in that: the top of the first upright post (34), the second upright post (35) and the third upright post (33) is rotatably provided with a pipe tug (14), one side of the pipe tug (14) is provided with a bull-eye bearing (13), and after a wing ring of a workpiece is tightly pressed by a flange front pressing mechanism and a flange rear pressing mechanism, the other side surface of the wing ring is tightly attached to the bull-eye bearing (13).
6. The automatic welder of a rigid waterproof bushing according to claim 2, characterized in that: the bottom of the second upright post (35) is hinged on the longitudinal sliding plate (5) through a positioning rotating shaft (12).
7. The automatic welder of a rigid waterproof bushing according to claim 2, characterized in that: the processing platform is provided with a longitudinal guide rail (4) in a protruding mode, the bottom of a longitudinal sliding plate (5) is slidably mounted on the longitudinal guide rail (4), a positioning screw hole is formed in the longitudinal guide rail (4), a locking screw is arranged at a position, corresponding to the positioning screw hole, on the longitudinal sliding plate, and the locking screw is locked into one of the positioning screw holes to position the longitudinal sliding plate on the processing platform.
8. The automatic welder of a rigid waterproof bushing according to claim 2, characterized in that: the bottom of the flange front positioning seat (6) and the bottom of the flange rear positioning seat (17) are both provided with guide sliding blocks, the longitudinal sliding plate is provided with guide sliding grooves, and the guide sliding blocks are arranged in the guide sliding grooves in a sliding mode.
9. The automatic welder of rigid waterproof casings of claim 1, wherein: the welding module comprises a left welding gun (23), a right welding gun (24), a left gun lifting cylinder (26), a right gun lifting cylinder (25), a gun swinging device (27) and an operation controller (30), wherein the left welding gun is arranged at the output end of the left gun lifting cylinder (26) through a welding gun support, the right welding gun is arranged at the output end of the right gun lifting cylinder (26) through a welding gun support, and the gun lifting cylinder (26) and the right gun lifting cylinder (25) are arranged at the output end of the gun swinging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066775.XA CN115351468A (en) | 2022-09-01 | 2022-09-01 | Automatic welding machine for rigid waterproof casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211066775.XA CN115351468A (en) | 2022-09-01 | 2022-09-01 | Automatic welding machine for rigid waterproof casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115351468A true CN115351468A (en) | 2022-11-18 |
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ID=84005560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211066775.XA Withdrawn CN115351468A (en) | 2022-09-01 | 2022-09-01 | Automatic welding machine for rigid waterproof casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115351468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399834A (en) * | 2023-12-13 | 2024-01-16 | 四川惠科达仪表制造有限公司 | Flange steel pipe assembly intelligent welding device with positioning function |
| CN117862798A (en) * | 2023-03-10 | 2024-04-12 | 天津亿达焊接设备有限公司 | Automatic welding machine for welding waterproof sleeve |
-
2022
- 2022-09-01 CN CN202211066775.XA patent/CN115351468A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117862798A (en) * | 2023-03-10 | 2024-04-12 | 天津亿达焊接设备有限公司 | Automatic welding machine for welding waterproof sleeve |
| CN117399834A (en) * | 2023-12-13 | 2024-01-16 | 四川惠科达仪表制造有限公司 | Flange steel pipe assembly intelligent welding device with positioning function |
| CN117399834B (en) * | 2023-12-13 | 2024-03-08 | 四川惠科达仪表制造有限公司 | Flange steel pipe assembly intelligent welding device with positioning function |
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Application publication date: 20221118 |
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| WW01 | Invention patent application withdrawn after publication |