CN111215483A - Pipe orifice rounding, shaping and butting device - Google Patents
Pipe orifice rounding, shaping and butting device Download PDFInfo
- Publication number
- CN111215483A CN111215483A CN202010200336.8A CN202010200336A CN111215483A CN 111215483 A CN111215483 A CN 111215483A CN 202010200336 A CN202010200336 A CN 202010200336A CN 111215483 A CN111215483 A CN 111215483A
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- Prior art keywords
- adjusting
- upper cover
- circle
- shaping
- base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of auxiliary devices for pipe butt welding construction, in particular to a pipe orifice rounding, shaping and butting device. The shaping assembly comprises a rounding base, a rounding upper cover and a shaping lining; the circle adjusting base and the circle adjusting upper cover have the same main body structure, and are both provided with a through arc groove on the rectangular block, and flanges are respectively arranged on the left side surface and the right side surface of the rectangular block; the opening of the circular arc groove of the circle adjusting base is upward, the circle adjusting upper cover is arranged above the circle adjusting base, the opening of the circular arc groove of the circle adjusting upper cover is downward, and the guide holes on the two sides of the circle adjusting upper cover are sleeved on the positioning guide pillars of the circle adjusting base; the shaping lining is respectively arranged in the circular arc grooves of the circular adjusting base and the circular adjusting upper cover; the length of the threaded rod is greater than the depth of the through hole, and the threaded rod is connected with a nut. Compared with the traditional manual beating mode, the circle adjusting effect is obviously improved; the nut on the threaded rod is screwed up to adjust the circle, so that the operation progress is accelerated, and the time and cost are saved.
Description
Technical Field
The invention relates to the technical field of auxiliary devices for pipe butt welding construction, in particular to a pipe orifice rounding, shaping and butting device.
Background
The installation operation of pipe class component is indispensable in the industrial field, relates to the work of dust removal pipeline assembly. During transportation, a steel pipe body (steel pipe for short) is deformed due to various reasons, and the position where the steel pipe body is most easily deformed is a pipe orifice. The deformed orifice needs to be rounded during installation.
The existing pipe orifice rounding mode is generally manually beaten, or a butt wedge is adopted, and a pipeline is beaten manually, so that the effect of rounding the pipeline is achieved.
As is known, the pipe type components cannot be installed in an infinitely prolonged mode in the installation process, and need to be installed in sections according to actual conditions. At this time, the pipelines need to be welded in a butt joint mode again, and the pipelines are assembled into a whole. In the opening aligning process of the pipeline, how to ensure that the pipeline can be quickly restored to the original state for the pipe opening with larger deformation, and ensure that the stress is uniform and the welding deformation is minimum in the welding process.
In conclusion, the pipe orifice needs to be rounded before the butt-jointed steel pipe is welded, and meanwhile, the traditional rounding and butt-jointing mode is low in operation efficiency and poor in rounding precision and effect. Therefore, it is very practical to develop a device for adjusting the deformed pipe orifice and realizing the butt joint of the pipe orifice.
Disclosure of Invention
The invention provides a pipe orifice rounding shaping and butting device, aiming at solving the problems of low rounding efficiency and low rounding precision and poor effect in the traditional pipe orifice rounding.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pipe orifice rounding, shaping and butting device comprises a bottom plate and a support, wherein the support is fixedly connected to the bottom plate, and the pipe orifice rounding, shaping and butting device also comprises a shaping assembly, and the shaping assembly is connected to the upper end of the support;
the shaping component comprises a rounding base, a rounding upper cover and a shaping lining; the circle adjusting base and the circle adjusting upper cover are identical in main body structure, through arc grooves are formed in the rectangular block, flanges are arranged on the left side face and the right side face of the rectangular block respectively, and one side face of each flange is aligned with the opening end of each arc groove of the rectangular block;
positioning guide pillars are respectively arranged on the flanges at the two sides of the circular adjusting base, and guide holes corresponding to the positioning guide pillars are respectively arranged on the flanges at the two sides of the upper adjusting cover; the opening of the circular arc groove of the circle adjusting base is upward, the circle adjusting upper cover is arranged above the circle adjusting base, the opening of the circular arc groove of the circle adjusting upper cover is downward, and the guide holes on the two sides of the circle adjusting upper cover are sleeved on the positioning guide pillars of the circle adjusting base; the round-bottom adjusting seat is connected with the corresponding bracket through flanges on two sides of the round-bottom adjusting seat;
the shaping lining is respectively arranged in the circular arc grooves of the circular adjusting base and the circular adjusting upper cover; the shaping lining is provided with an arc plate, the outer diameter of the arc plate is smaller than the diameter of the arc groove, and a threaded rod is arranged on the outer arc surface of the arc plate; through holes corresponding to the threaded rods are respectively formed in the bottom surface of the circle adjusting base and the top surface of the circle adjusting upper cover, and the through holes penetrate through the arc surfaces of the arc grooves; the length of the threaded rod is greater than the depth of the through hole, and the threaded rod is connected with a nut;
the arc angle corresponding to the arc groove of the circle adjusting base and the upper cover of the circle adjusting base is less than or equal to 180 degrees; the arc angle corresponding to the shaping lining arc plate is 5-10 degrees smaller than the arc angle corresponding to the arc groove.
Compared with the prior art, the invention has the technical effects that: the deformed pipe orifice rounding is carried out by extruding the deformed pipe wall through the shaping lining, and the rounding effect is obviously improved compared with the traditional manual beating mode; the nut on the threaded rod is screwed tightly to adjust the circle, so that the operation progress is accelerated, and the time cost is saved; the pipe guide support has the advantages of simple structure, convenience in mounting and dismounting, low manufacturing cost, flexibility in operation, reusability, capability of being used as a temporary guide support of a pipeline, and great significance in the mounting engineering of steel structural members, particularly in ensuring the mouth-to-mouth quality and the fine adjustment of pipe diameters of pipe members.
The invention can be further improved, and the improvement scheme is as follows:
the circle adjusting base is in sliding connection with the bracket; the upper end of the bracket is provided with a dovetail groove, and the two side flanges of the round adjusting base are provided with slide blocks matched with the dovetail groove.
A scale is arranged on the circle adjusting base, the zero scale mark of the scale is flush with the root part of the positioning guide pillar, and the scale and the positioning guide pillar are vertically arranged in the same direction; the upper adjusting cover is provided with a pointer, and the lower edge of the pointer is aligned with the lower surface of the upper adjusting cover.
The shaping lining is provided with three threaded rods; the threaded rods are vertically arranged, and the extending lines of the three threaded rods divide the chord corresponding to the arc plate into four equal parts.
The positioning guide post is provided with an external thread, the positioning guide post is provided with a nut, and the nut is arranged on the upper side of the flange of the upper cover of the adjusting cylinder; the guide hole of the upper cover is arranged into a U-shaped opening.
When the axes of the arc groove of the circle adjusting base and the arc groove of the circle adjusting upper cover coincide, the distance between the circle adjusting base and the circle adjusting upper cover is 25-35 mm.
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 perspective view of an embodiment of the present invention.
Fig. 2 is a front view of an embodiment of the present invention.
Fig. 3 is a partial enlarged view corresponding to a in fig. 2.
Fig. 4 is a perspective view of the rounded base 4 in the embodiment of the present invention.
Fig. 5 is a perspective view of the upper adjustment cover 5 of the present invention.
FIG. 6 is a schematic view showing the butt joint operation of steel pipes 8 according to the embodiment of the present invention.
In the figure: a base plate 1; a bracket 2 and a dovetail groove 2-1; a baffle 3; the device comprises a round adjusting base 4, a positioning guide pillar 4-1, a scale 4-2, a slide block 4-3 and a through hole 4-4; adjusting an upper cover 5, a guide hole 5-1 and a pointer 5-2; shaping lining 6, arc plate 6-1 and threaded rod 6-2; a nut 7; and (8) a steel pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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.
As shown in fig. 1 to 5, the pipe orifice rounding, shaping and butting device provided by the invention comprises a bottom plate 1, a bracket 2 and a shaping assembly, wherein the bracket 2 is fixedly connected to the bottom plate 1, and the shaping assembly is connected to the upper end of the bracket 2.
The shaping component comprises a rounding base 4, a rounding upper cover 5 and a shaping lining 6; the main structures of the adjusting round base 4 and the adjusting upper cover 5 are the same, through arc grooves are arranged on the rectangular blocks (the adjusting round base 4 and the adjusting upper cover 5 adopt rectangular block-shaped main bodies with the same size and shape, the size and the position of the arc grooves on the block-shaped main bodies are the same), flanges are respectively arranged on the left side surface and the right side surface of each rectangular block, and one side surface of each flange is aligned with the open end of the arc groove of each rectangular block.
The flanges at two sides of the round-bottom adjusting seat 4 are respectively provided with a positioning guide post 4-1, and the positioning guide posts 4-1 are arranged at the opening side of the circular arc groove (namely the upper end surface of the flange of the round-bottom adjusting seat 4); the flanges at the two sides of the upper adjusting cover 5 are respectively provided with a guide hole 5-1 corresponding to the positioning guide post 4-1; the opening of the circular arc groove of the round adjusting base 4 is upward, the round adjusting upper cover 5 is arranged above the round adjusting base 4, the opening of the circular arc groove of the round adjusting upper cover 5 is downward, and the guide holes 5-1 at two sides of the round adjusting upper cover 5 are sleeved on the positioning guide posts 4-1 of the round adjusting base 4; the rounded base 4 is connected with the corresponding bracket 2 through flanges at two sides of the rounded base.
The shaping lining 6 is respectively arranged in the circular arc grooves of the round adjusting base 4 and the round adjusting upper cover 5; the shaping lining 6 is provided with an arc plate 6-1, the outer diameter of the arc plate 6-1 is smaller than the diameter of the arc groove, and a threaded rod 6-2 is arranged on the outer arc surface of the arc plate 6-1; the bottom surface of the circular adjusting base 4 and the top surface of the upper adjusting cover 5 are respectively provided with a through hole 4-4 corresponding to the threaded rod 6-2, and the through hole 4-4 penetrates through the arc surface of the arc groove; the length of the threaded rod 6-2 is larger than the depth of the through hole 4-4, and the threaded rod 6-2 is connected with a nut 7.
The arc angles corresponding to the arc grooves of the round adjusting base 4 and the round adjusting upper cover 5 are less than or equal to 180 degrees; the arc angle corresponding to the arc plate 6-1 of the shaping lining 6 is 5-10 degrees smaller than the arc angle corresponding to the arc groove.
The following preferred structure is adopted in the embodiment of the present invention.
As the preferred structure, the round-bottom adjusting seat 4 is in sliding connection with the bracket 2; the upper end of the bracket 2 is provided with a dovetail groove 2-1, and the flanges at two sides of the round adjusting base 4 are provided with sliding blocks 4-3 matched with the dovetail groove 2-1. The two ends of the dovetail groove 2-1 are respectively provided with a baffle 3, the baffle 3 and the bracket 2 can be fixed in a welding mode, and the baffle 3 is welded after the shaping assembly and the bracket 2 are assembled by adopting the welding mode; in order to facilitate the disassembly and assembly, the baffle 3 can be fixedly connected on the bracket 2 by screws.
The round adjusting base 4 and the bracket 2 are in sliding connection through the dovetail groove 2-1 and the sliding block 4-3, so that the adjustment of the operation position during the butt joint and shaping operation of the pipe fitting is facilitated by using the embodiment of the invention.
As a preferable structure, the flanges and the rectangular flanges are arranged on two sides of the round adjusting base 4 and the round adjusting upper cover 5; a scale 4-2 is arranged on the flange of the round-bottom adjusting seat 4, the zero scale mark of the scale 4-2 is flush with the root part of the positioning guide pillar 4-1, and the scale 4-2 and the positioning guide pillar 4-1 are vertically arranged in the same direction; and a pointer 5-2 is arranged on the free end surface of the flange of the upper adjusting cover 5, and the lower edge of the pointer 5-2 is aligned with the bottom surface of the upper adjusting cover 5. The scale 4-2 is a millimeter steel plate scale. The scale 4-2 of the scale pointed by the pointer 5-2 is the distance between the round-bottom adjusting seat 4 and the upper adjusting cover 5.
In order to facilitate observation of the embodiment, the scales 4-2 are symmetrically arranged on the left side and the right side of the turn-round base 4 respectively, and the pointers 5-2 are symmetrically arranged on the two sides of the turn-round upper cover 5.
As a preferable structure, the shaping lining 6 is provided with three threaded rods 6-2; the threaded rods 6-2 are all vertically arranged, and the extending lines of the three threaded rods 6-2 divide the chord corresponding to the arc plate 6-1 into four equal parts. The free ends of the three threaded rods 6-2 are aligned.
The threaded rods 6-2 uniformly arranged by the three threaded rods 6-2 are beneficial to balancing the stress condition of the shaping lining 6 during shaping and are beneficial to improving the shaping effect.
As a preferable structure, an external thread is arranged on the positioning guide post 4-1, a nut 7 is arranged on the positioning guide post 4-1, and the nut 7 is arranged on the upper side of the flange of the upper cover 5; a guide hole 5-1 of the upper cover 5 is arranged into a U-shaped opening.
The guide hole 5-1 is set to be a U-shaped opening, so that the requirement of slightly deviating the position between the upper cover 5 and the round bottom adjusting seat 4 during the round adjusting operation is met, and the condition of clamping death during slightly deviating the round bottom adjusting seat is prevented.
As a preferable structure, when the axes of the circular arc groove of the adjusting circular base 4 and the circular arc groove of the adjusting circular top 5 coincide, the distance between the adjusting circular base 4 and the adjusting circular top 5 is 30 mm.
The method for shaping the opening of the steel pipe by using the invention comprises the following steps:
firstly, placing a deformed part of a pipe orifice of a steel pipe 8, which needs to be shaped, into a shaping lining 6 between a rounding base 4 and a rounding upper cover 5;
secondly, adjusting nuts 7 on the positioning guide pillars 4-1 at two sides respectively until pipe orifices are tightly clamped in the shaping lining 6, and observing the pointer 5-2 to enable the pointers 5-2 at two sides to point to the same scale of the scale 4-2 (namely indicating that the adjacent surfaces of the upper cover 5 and the round-bottom adjusting seat 4 of the adjusting are parallel;
thirdly, respectively adjusting nuts 7 on the threaded rods 6-2, and adjusting according to actual deformation conditions to enable the shaping lining 6 to continuously extrude the deformed part of the pipe orifice for shaping;
and fourthly, adjusting to a certain degree, loosening the threaded rod 6-2 and the nut 7 on the positioning guide post 4-1, and then rotating the pipe orifice to continue rounding according to the shaped condition.
Continuously repeating the second step to the fourth step to gradually round the deformed pipe orifice; and if the requirement on the welding quality of the pipe orifice is higher or the requirement on the roundness of the pipe orifice is higher, the rounding can be continuously carried out according to the method in the fifth step.
Fifthly, inserting the steel pipe 8 between the circular arc groove of the adjusting round base 4/the adjusting upper cover 5 and the shaping lining 6 (the shaping lining 6 is arranged on the inner side of the pipe wall, and the adjusting round base 4 and the adjusting upper cover 5 are arranged on the outer side of the pipe wall of the steel pipe 8), adjusting the distance between the adjusting round base 4 and the adjusting upper cover 5 to ensure that the axes of the circular arc groove of the adjusting round base 4 and the circular arc groove of the adjusting upper cover 5 are superposed (namely the circular arc grooves between the adjusting round base 4 and the adjusting upper cover 5 are on the same virtual cylindrical surface), and then screwing the nut 7 on each threaded rod 6-2 to ensure that the shaping lining 6 continuously extrudes the inner wall of the pipe orifice to further round the pipe orifice; and after rounding, butt welding can be carried out.
When the pipe orifice welding butt joint operation is required, a set of shaping components can be added in the embodiment of the invention as shown in fig. 6. The method for carrying out the pipe orifice butt joint operation by using the embodiment of the invention provided with two sets of shaping assemblies comprises the following steps:
firstly, rounding the pipe orifices of steel pipes 8 to be butt-welded according to the above steps, respectively clamping the butt-welded pipe bodies in shaping linings 6 of corresponding shaping components after rounding is finished, and positioning the shaping components to be not less than 50mm away from the pipe orifices after clamping;
then, the pipe body pushes the steel pipe 8 at one end and the shaping assembly clamping the steel pipe 8 after being clamped respectively, the shaping assembly slides on the support 2 to complete the butt joint of the pipe orifice, and the butt joint of the pipe orifice can be realized by finely adjusting the shaping lining 6.
After the butt joint is finished, welding can be carried out, the upper covers 5 are respectively dismounted, and then the butt welded pipe body is taken down.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (6)
1. The utility model provides a mouth of pipe rounding plastic and interfacing apparatus, includes bottom plate and support, support fixed connection is in on the bottom plate, its characterized in that: the shaping component is connected to the upper end of the bracket;
the shaping component comprises a rounding base, a rounding upper cover and a shaping lining; the circle adjusting base and the circle adjusting upper cover are identical in main body structure, through arc grooves are formed in the rectangular block, flanges are arranged on the left side face and the right side face of the rectangular block respectively, and one side face of each flange is aligned with the opening end of each arc groove of the rectangular block;
positioning guide pillars are respectively arranged on the flanges at the two sides of the circular adjusting base, and guide holes corresponding to the positioning guide pillars are respectively arranged on the flanges at the two sides of the upper adjusting cover; the opening of the circular arc groove of the circle adjusting base is upward, the circle adjusting upper cover is arranged above the circle adjusting base, the opening of the circular arc groove of the circle adjusting upper cover is downward, and the guide holes on the two sides of the circle adjusting upper cover are sleeved on the positioning guide pillars of the circle adjusting base; the round-bottom adjusting seat is connected with the corresponding bracket through flanges on two sides of the round-bottom adjusting seat;
through holes corresponding to the threaded rods are respectively formed in the bottom surface of the circle adjusting base and the top surface of the circle adjusting upper cover, and the through holes penetrate through the arc surfaces of the arc grooves; the length of the threaded rod is greater than the depth of the through hole, and the threaded rod is connected with a nut;
the arc angle corresponding to the arc groove of the circle adjusting base and the upper cover of the circle adjusting base is less than or equal to 180 degrees; the arc angle corresponding to the shaping lining arc plate is 5-10 degrees smaller than the arc angle corresponding to the arc groove.
2. The pipe orifice rounding, shaping and docking device of claim 1, wherein: the circle adjusting base is in sliding connection with the bracket; the upper end of the bracket is provided with a dovetail groove, and the two side flanges of the round adjusting base are provided with slide blocks matched with the dovetail groove.
3. The pipe orifice rounding, shaping and docking device of claim 2, wherein: a scale is arranged on the circle adjusting base, the zero scale mark of the scale is flush with the root part of the positioning guide pillar, and the scale and the positioning guide pillar are vertically arranged in the same direction; the upper adjusting cover is provided with a pointer, and the lower edge of the pointer is aligned with the lower surface of the upper adjusting cover.
4. The pipe orifice rounding, shaping and docking device of claim 3, wherein: the shaping lining is provided with three threaded rods; the threaded rods are vertically arranged, and the extending lines of the three threaded rods divide the chord corresponding to the arc plate into four equal parts.
5. The pipe orifice rounding, shaping and docking device of claim 4, wherein: the positioning guide post is provided with an external thread, the positioning guide post is provided with a nut, and the nut is arranged on the upper side of the flange of the upper cover of the adjusting cylinder; the guide hole of the upper cover is arranged into a U-shaped opening.
6. The pipe orifice rounding, shaping and butting device according to any one of claims 1 to 5, wherein: when the axes of the arc groove of the circle adjusting base and the arc groove of the circle adjusting upper cover coincide, the distance between the circle adjusting base and the circle adjusting upper cover is 25-35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200336.8A CN111215483A (en) | 2020-03-20 | 2020-03-20 | Pipe orifice rounding, shaping and butting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200336.8A CN111215483A (en) | 2020-03-20 | 2020-03-20 | Pipe orifice rounding, shaping and butting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111215483A true CN111215483A (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010200336.8A Pending CN111215483A (en) | 2020-03-20 | 2020-03-20 | Pipe orifice rounding, shaping and butting device |
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| Country | Link |
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| CN (1) | CN111215483A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682711A (en) * | 2020-06-08 | 2020-09-18 | 日立电梯电机（广州）有限公司 | Stator core shaping device and stator core shaping method |
| CN111745066A (en) * | 2020-07-02 | 2020-10-09 | 徐梅 | Round pipe end correcting device and using method thereof |
| CN112318417A (en) * | 2020-10-27 | 2021-02-05 | 中国十九冶集团有限公司 | A fast-assembling connecting device for non-metallic pipeline butt joint of building engineering |
| CN114289988A (en) * | 2021-12-15 | 2022-04-08 | 沪东中华造船(集团)有限公司 | Device for butt welding pipe joint and pipe and using method |
-
2020
- 2020-03-20 CN CN202010200336.8A patent/CN111215483A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682711A (en) * | 2020-06-08 | 2020-09-18 | 日立电梯电机（广州）有限公司 | Stator core shaping device and stator core shaping method |
| CN111682711B (en) * | 2020-06-08 | 2021-08-31 | 日立电梯电机（广州）有限公司 | Stator core shaping device and stator core shaping method |
| CN111745066A (en) * | 2020-07-02 | 2020-10-09 | 徐梅 | Round pipe end correcting device and using method thereof |
| CN112318417A (en) * | 2020-10-27 | 2021-02-05 | 中国十九冶集团有限公司 | A fast-assembling connecting device for non-metallic pipeline butt joint of building engineering |
| CN114289988A (en) * | 2021-12-15 | 2022-04-08 | 沪东中华造船(集团)有限公司 | Device for butt welding pipe joint and pipe and using method |
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