CN115318881A - Automatic flange correction device - Google Patents
Automatic flange correction device Download PDFInfo
- Publication number
- CN115318881A CN115318881A CN202210984341.1A CN202210984341A CN115318881A CN 115318881 A CN115318881 A CN 115318881A CN 202210984341 A CN202210984341 A CN 202210984341A CN 115318881 A CN115318881 A CN 115318881A
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- plate
- flange
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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
- B21D3/10—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 between rams and anvils or abutments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses an automatic flange correcting device which comprises a base and a top plate positioned above the base, wherein vertical plates are fixedly arranged at two ends of the top of the base, and the top ends of the vertical plates are fixedly connected with the bottom of the top plate; the top center of base and the equal fixed mounting in bottom center of roof have automatically controlled pneumatic cylinder, and fixed mounting has the supporting shoe that is used for supporting the centre gripping to the web on the output of automatically controlled pneumatic cylinder, the both sides of web all are equipped with the flange board of vertical setting. According to the invention, the L-shaped correcting plate abuts against the web plate, the outer side of the L-shaped correcting plate abuts against the flange plate, and two L-shaped outer walls of the L-shaped correcting plate are two mutually perpendicular surfaces, so that the flange plate and the web plate can be corrected to be in a perpendicular state, and the condition that the subsequent welding accuracy is inaccurate due to the fact that the positions of the flange plates on the two sides of the web plate are not correct is avoided.
Description
Technical Field
The invention relates to the technical field of correction devices, in particular to an automatic flange correction device.
Background
As is well known, H-section steel is widely used in the construction industry due to its small steel consumption, high strength, and the like. The H-shaped steel consists of an upper wing plate, a web plate and a lower wing plate. In the assembling process of the H-shaped steel, wing plates on two sides and a web plate in the middle are corrected, so that subsequent accurate welding seams can be conveniently formed.
Chinese patent CN210816819U discloses an H-shaped steel flange orthotic devices, including frame, H-shaped steel wing, hydraulic means, laser range finder, control box, the frame bilateral symmetry, the frame top is equipped with first support frame, the frame bottom is equipped with the second support frame, the web of H-shaped steel wing is placed the top of second support frame, the left side and the right side of frame are fixed with two respectively hydraulic means, the left side and the right side of first support frame and second support frame are fixed with one respectively hydraulic means, left side and right side, the control box is established the left surface of frame. The utility model adopts the electro-hydraulic push rod to correct the bent steel flange, can correct the steel flange in all directions in one process, and has high working efficiency; adopt laser range finder to detect the crooked degree on steel flange to combine programmable control box to carry out accurate correction, correct the precision height.
However, although the existing automatic flange correction device can achieve the alignment of flange plates on two sides of the automatically corrected H-beam, it is difficult to vertically correct the web plate and the flange plates in the H-beam during the correction process, which easily causes the position of the flange plates on two sides of the web plate to be incorrect, and affects the accuracy of the subsequent welding.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an automatic flange correction device.
The automatic flange correction device comprises a base and a top plate positioned above the base, wherein vertical plates are fixedly arranged at two ends of the top of the base, and the top ends of the vertical plates are fixedly connected with the bottom of the top plate; the center of the top of the base and the center of the bottom of the top plate are both fixedly provided with an electric control hydraulic cylinder, the output end of the electric control hydraulic cylinder is fixedly provided with a supporting block for supporting and clamping a web plate, and two sides of the web plate are both provided with vertically arranged flange plates;
the two sides of the supporting block are respectively and movably provided with an L-shaped correcting plate for correcting a vertical angle between the web plate and the flange plate, and the L-shaped correcting plates are respectively attached to and abutted against the web plate and the flange plate; the two L-shaped correcting plates are movably provided with an L-shaped supporting and correcting plate at one side close to each other, and the L-shaped supporting and correcting plates are used for supporting and correcting the flange plates;
the middle parts of the sides, close to each other, of the two vertical plates are fixedly provided with transverse supports, and the inner ends of the transverse supports are fixedly provided with laser range finders used for ranging the flange plates; the side, close to each other, of each of the two vertical plates is also fixedly provided with an electric telescopic rod, and the output end of each electric telescopic rod is fixedly connected with a clamping block for positioning and clamping the outer side of the flange plate;
an installation cavity is formed in the supporting block, a horizontal screw rod which is horizontally arranged is rotatably installed in the installation cavity, a first stepping motor is fixedly installed on the inner wall of the bottom of the installation cavity, the output end of the first stepping motor is fixedly connected with a worm, a worm wheel is fixedly sleeved in the middle of the horizontal screw rod, and the worm wheel is meshed with the worm;
two ends of the transverse screw rod respectively penetrate through the outer parts of two sides of the supporting block in a rotating manner, and the outer end of the transverse screw rod also extends into the transverse thread groove and is in threaded connection with the transverse thread groove;
the L-shaped correcting plate is characterized in that a second stepping motor is fixedly mounted on the inner wall of the top of the L-shaped correcting plate, a vertical screw rod is fixedly connected to the output end of the second stepping motor, a vertical thread groove is formed in the top end of the L-shaped supporting correcting plate, and the bottom end of the vertical screw rod extends into the vertical thread groove and is in threaded connection with the vertical thread groove.
Preferably, the L-shaped supporting and correcting plate is fixedly connected with a vertical sliding block on one side close to the L-shaped correcting plate, a vertical sliding groove is formed in the L-shaped correcting plate, and the vertical sliding block is slidably mounted in the vertical sliding groove along the vertical direction.
Preferably, a partition plate is fixedly mounted on the inner wall of the left side of the L-shaped correction plate, and the vertical screw rod penetrates through the partition plate in a rotating mode.
Preferably, the partition plate is provided with a mounting hole, a first bearing is fixedly mounted in the mounting hole, and the vertical screw rod is rotatably mounted on the first bearing of the partition plate.
Preferably, the inner walls of the two sides of the mounting cavity are provided with rotating holes, the rotating holes are fixedly sleeved with second bearings, and the transverse screw is rotatably mounted on the second bearings.
Preferably, the two end parts of the transverse screw rod are provided with external threads, and the thread directions of the external threads on the two end parts of the transverse screw rod are opposite; the outer walls of the two sides of the L-shaped correction plate are perpendicular to each other; the inner walls of the two sides of the L-shaped supporting and adjusting plate are perpendicular to each other.
Preferably, a third bearing is fixedly sleeved on the inner wall of the top of the mounting cavity, and the top end of the worm is rotatably mounted on the third bearing.
Preferably, the top of roof is provided with the electric cabinet, is provided with power and controller in the electric cabinet, and the controller respectively with electric telescopic handle, laser range finder, first step motor, second step motor, automatically controlled pneumatic cylinder electric control connection.
The invention has the beneficial effects that:
according to the invention, the web plate is abutted by the L-shaped correcting plate, the flange plate is abutted by the outer side of the L-shaped correcting plate, and the two L-shaped outer walls of the L-shaped correcting plate are two mutually perpendicular planes, so that the flange plate and the web plate can be corrected to be in a perpendicular state, and the condition that the subsequent welding accuracy is not accurate due to the fact that the flange plates on the two sides of the web plate are not in right positions is avoided.
According to the invention, the second stepping motor drives the vertical screw rod to rotate forwards and backwards, so that the L-shaped supporting and adjusting plate can perform vertical thread transmission on the vertical screw rod through the vertical thread groove, the vertical position of the flange plate can be adjusted up and down through the up-and-down movement of the L-shaped supporting and adjusting plate, the structure is simple, the adjustment and use by people are facilitated, and finally the welding quality after subsequent adjustment and correction can be further ensured.
Drawings
Fig. 1 is a schematic structural view of an automatic flange straightening device according to the present invention;
fig. 2 is a schematic view illustrating a state of the flange straightening robot according to the present invention after straightening a flange plate and a web;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an enlarged schematic view of a portion of FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of part A of FIG. 3 according to the present invention
FIG. 6 is an enlarged view of portion B of FIG. 3;
fig. 7 is a schematic structural diagram of the worm, the worm wheel and the transverse screw in the automatic flange straightening device provided by the invention.
In the figure: 1. a base; 2. a top plate; 3. a vertical plate; 4. an electric cabinet; 5. an electric control hydraulic cylinder; 6. a support block; 601. a mounting cavity; 602. a first stepper motor; 603. a worm; 604. a worm gear; 7. an L-shaped correction plate; 8. an L-shaped supporting and adjusting plate; 9. a transverse support; 10. a laser range finder; 11. an electric telescopic rod; 12. a clamping block; 13. a flange plate; 14. a web; 15. a transverse screw; 151. an external thread; 16. a transverse thread groove; 17. a second bearing; 18. a partition plate; 19. a second stepping motor; 20. a vertical screw; 21. a vertical thread groove; 22. a vertical slide block; 23. a vertical chute.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1 to 7, the embodiment provides an automatic flange straightening device, which includes a base 1 and a top plate 2 located above the base 1, wherein two ends of the top of the base 1 are both fixedly provided with a vertical plate 3, and the top end of the vertical plate 3 is fixedly connected with the bottom of the top plate 2; the center of the top of the base 1 and the center of the bottom of the top plate 2 are both fixedly provided with an electric control hydraulic cylinder 5, the output end of the electric control hydraulic cylinder 5 is fixedly provided with a supporting block 6 for supporting and clamping a web plate 14, and two sides of the web plate 14 are both provided with vertically arranged flange plates 13;
the two sides of the supporting block 6 are movably provided with L-shaped correcting plates 7 for correcting vertical angles between the web plates 14 and the flange plates 13, and the L-shaped correcting plates 7 are respectively attached to and abut against the web plates 14 and the flange plates 13; the two L-shaped correcting plates 7 are movably provided with an L-shaped supporting and correcting plate 8 at one side close to each other, and the L-shaped supporting and correcting plate 8 is used for supporting and correcting the flange plate 13;
the middle parts of the sides, close to each other, of the two vertical plates 3 are fixedly provided with transverse brackets 9, and the inner ends of the transverse brackets 9 are fixedly provided with laser range finders 10 for ranging the flange plates 13; an electric telescopic rod 11 is fixedly arranged on one side of each vertical plate 3 close to each other, and a clamping block 12 for positioning and clamping the outer side of a flange plate 13 is fixedly connected to the output end of each electric telescopic rod 11;
a mounting cavity 601 is arranged inside the supporting block 6, a horizontal screw 15 which is horizontally arranged is rotatably mounted inside the mounting cavity 601, a first stepping motor 602 is fixedly mounted on the inner wall of the bottom of the mounting cavity 601, an output end of the first stepping motor 602 is fixedly connected with a worm 603, a worm wheel 604 is fixedly sleeved in the middle of the horizontal screw 15, and the worm wheel 604 is meshed with the worm 603;
one end of each L-shaped straightening plate 7, which is close to each other, is provided with a transverse thread groove 16, two ends of each transverse screw 15 respectively penetrate through the outer parts of two sides of each supporting block 6 in a rotating manner, and the outer end of each transverse screw 15 also extends into the corresponding transverse thread groove 16 and is in threaded connection with the corresponding transverse thread groove 16;
a second stepping motor 19 is fixedly mounted on the inner wall of the top of the L-shaped correction plate 7, a vertical screw rod 20 is fixedly connected to the output end of the second stepping motor 19, a vertical thread groove 21 is formed in the top end of the L-shaped supporting and correcting plate 8, and the bottom end of the vertical screw rod 20 extends into the vertical thread groove 21 and is in threaded connection with the vertical thread groove 21.
In this example, one side of the L-shaped supporting and correcting plate 8 close to the L-shaped correcting plate 7 is fixedly connected with a vertical sliding block 22, the L-shaped correcting plate 7 is provided with a vertical sliding groove 23, and the vertical sliding block 22 is slidably mounted in the vertical sliding groove 23 along the vertical direction.
In this example, a partition plate 18 is fixedly installed on the inner wall of the left side of the L-shaped correction plate 7, and a vertical screw 20 is rotatably penetrated through the partition plate 18; a mounting hole is formed in the partition plate 18, a first bearing is fixedly mounted in the mounting hole, and the vertical screw 20 is rotatably mounted on the first bearing of the partition plate 18; the inner walls of the two sides of the mounting cavity 601 are provided with rotating holes, the rotating holes are fixedly sleeved with a second bearing 17, and the transverse screw 15 is rotatably mounted on the second bearing 17.
In this example, the two ends of the transverse screw 15 are both provided with external threads 151, and the thread directions of the external threads 151 on the two ends of the transverse screw 15 are opposite; the outer walls of two sides of the L-shaped correction plate 7 are perpendicular to each other; the inner walls of the two surfaces of the L-shaped supporting and adjusting plate 8 are perpendicular to each other.
A third bearing is fixedly sleeved on the inner wall of the top of the mounting cavity 601, and the top end of the worm 603 is rotatably mounted on the third bearing.
The top of the top plate 2 is provided with an electric cabinet 4, a power supply and a controller are arranged in the electric cabinet 4, and the controller is respectively in electric control connection with the electric telescopic rod 11, the laser range finder 10, the first stepping motor 602, the second stepping motor 19 and the electric hydraulic cylinder 5.
As shown in fig. 1-7, in the automatic flange straightening device provided by the present invention, when in use, the web 14 is placed on the lower support block 6, then the two flange plates 13 are placed on the two side L-shaped support and straightening plates 8 respectively, and the flange plates 13 are abutted against the L-shaped straightening plates 7, and then the two side electric telescopic rods 11 are operated simultaneously, so that the two clamping blocks 12 move inwards and clamp the flange plates 13 oppositely, and at the same time, the top electrically controlled hydraulic cylinder pushes the top support block 6 to clamp the top side of the web 14 oppositely (as shown in fig. 2), it should be noted that the clamping of the flange plates 13 and the web 14 is clamped oppositely, not in a special clamping state, so as to perform subsequent straightening, and then the laser distance measurement is performed on the flange plates 13 by the laser distance measuring device 10, and then the controller controls the operation of the two side electric telescopic rods 11 according to the measured information, and further performs left and right movement adjustment on the flange plates 13 and the web by the clamping blocks 12, so that the flange plates 13 and the web 14 can be straightened to correct the flange plates 13. Then, the worm 603 is driven to rotate by the first stepping motor 602, the worm 603 is in meshing transmission with the worm wheel 604 when rotating, so that the transverse screw 15 can rotate, the transverse screw 15 also rotates relative to the transverse thread groove 16 on the L-shaped correction plate 7 when rotating, meanwhile, because the thread direction of the external thread 15 on the transverse screw 15 is opposite, when the transverse thread groove 16 rotates, the L-shaped correction plates 7 on the two sides can respectively perform mutually-separated thread transmission on the two external threads 15 of the transverse screw 15 through the transverse thread groove 16, so that the outer sides of the two L-shaped correction plates 7 are abutted to the flange plate 13, and meanwhile, the support block 6 and the L-shaped correction plate 7 are pushed by the upper electric control hydraulic cylinder 5 and the lower electric control hydraulic cylinder 5 to clamp the web plate 14, and the clamping blocks 12 are pushed by the electric telescopic rods 11 on the two sides to clamp the flange plate 13. Finally, the L-shaped correcting plate 7 abuts against the web plate 14, the flange plate 13 is abutted on the outer side of the L-shaped correcting plate 7, and two L-shaped outer walls of the L-shaped correcting plate 7 are two mutually perpendicular surfaces, so that the flange plate 13 and the web plate 14 can be corrected to be in a perpendicular state, and the condition that the subsequent welding accuracy is inaccurate due to the fact that the positions of the flange plates 13 on the two sides of the web plate 14 are not correct is avoided.
In addition, as shown in fig. 6, the up-down position of the flange plate 13 can be adjusted, that is, in the adjusting process, the output end of the second stepping motor 19 can drive the vertical screw 20 to rotate forward and backward, so that the L-shaped supporting and adjusting plate 8 can perform up-down thread transmission on the vertical screw 20 through the vertical thread groove 21, and further the up-down position of the flange plate 13 can be adjusted up and down through the up-down movement of the L-shaped supporting and adjusting plate 8, and the structure is simple, so that people can adjust and use the flange plate, and the quality of subsequent welding can be further ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The automatic flange correction device is characterized by comprising a base (1) and a top plate (2) positioned above the base (1), wherein vertical plates (3) are fixedly arranged at two ends of the top of the base (1), and the top ends of the vertical plates (3) are fixedly connected with the bottom of the top plate (2); the center of the top of the base (1) and the center of the bottom of the top plate (2) are both fixedly provided with an electric control hydraulic cylinder (5), the output end of the electric control hydraulic cylinder (5) is fixedly provided with a supporting block (6) for supporting and clamping a web plate (14), and two sides of the web plate (14) are both provided with vertically arranged flange plates (13);
l-shaped correcting plates (7) used for correcting vertical angles between the web plates (14) and the flange plates (13) are movably mounted on two sides of the supporting block (6), and the L-shaped correcting plates (7) are respectively attached to the web plates (14) and the flange plates (13) and abut against the web plates (14) and the flange plates (13); the two L-shaped correcting plates (7) are movably provided with an L-shaped supporting and correcting plate (8) at one side close to each other, and the L-shaped supporting and correcting plate (8) is used for supporting and correcting the flange plate (13);
the middle parts of the sides, close to each other, of the two vertical plates (3) are fixedly provided with transverse brackets (9), and the inner ends of the transverse brackets (9) are fixedly provided with laser range finders (10) for ranging the flange plates (13); electric telescopic rods (11) are fixedly mounted on the sides, close to each other, of the two vertical plates (3), and clamping blocks (12) used for positioning and clamping the outer sides of the flange plates (13) are fixedly connected to the output ends of the electric telescopic rods (11);
a mounting cavity (601) is arranged inside the supporting block (6), a horizontal screw (15) is rotatably mounted inside the mounting cavity (601), a first stepping motor (602) is fixedly mounted on the inner wall of the bottom of the mounting cavity (601), the output end of the first stepping motor (602) is fixedly connected with a worm (603), a worm wheel (604) is fixedly sleeved in the middle of the horizontal screw (15), and the worm wheel (604) is meshed with the worm (603);
one ends, close to each other, of the two L-shaped straightening plates (7) are provided with transverse thread grooves (16), two ends of each transverse screw (15) penetrate through the outer portions of two sides of the supporting block (6) in a rotating mode respectively, and the outer ends of the transverse screws (15) extend into the transverse thread grooves (16) and are in threaded connection with the transverse thread grooves (16);
a second stepping motor (19) is fixedly mounted on the inner wall of the top of the L-shaped straightening plate (7), a vertical screw rod (20) is fixedly connected to the output end of the second stepping motor (19), a vertical thread groove (21) is formed in the top end of the L-shaped supporting and straightening plate (8), and the bottom end of the vertical screw rod (20) extends into the vertical thread groove (21) and is in threaded connection with the vertical thread groove (21).
2. The automatic flange straightening device according to claim 1, characterized in that a vertical sliding block (22) is fixedly connected to one side of the L-shaped supporting and straightening plate (8) close to the L-shaped straightening plate (7), a vertical sliding groove (23) is formed in the L-shaped straightening plate (7), and the vertical sliding block (22) is slidably mounted in the vertical sliding groove (23) along the vertical direction.
3. The flange straightening automatic device according to the claim 1, characterized in that a clapboard (18) is fixedly arranged on the left inner wall of the L-shaped straightening plate (7), and a vertical screw (20) is rotatably penetrated through the clapboard (18).
4. The automatic flange straightening device according to claim 3, characterized in that the partition plate (18) is provided with a mounting hole, a first bearing is fixedly mounted in the mounting hole, and the vertical screw (20) is rotatably mounted on the first bearing of the partition plate (18).
5. The automatic flange straightening device according to claim 1, characterized in that the inner walls of the two sides of the installation cavity (601) are provided with rotating holes, the second bearings (17) are fixedly sleeved in the rotating holes, and the transverse screw (15) is rotatably installed on the second bearings (17).
6. The flange straightening automatic device according to claim 1, characterized in that the two ends of the transverse screw (15) are provided with external threads (151), and the external threads (151) on the two ends of the transverse screw (15) are arranged in opposite directions; the outer walls of two sides of the L-shaped straightening plate (7) are perpendicular to each other; the inner walls of the two surfaces of the L-shaped supporting and adjusting plate (8) are mutually vertical.
7. The automatic flange straightening device according to claim 1, characterized in that a third bearing is fixedly sleeved on the inner wall of the top of the mounting cavity (601), and the top end of the worm (603) is rotatably mounted on the third bearing.
8. The automatic flange straightening device according to claim 1, characterized in that an electric cabinet (4) is arranged at the top of the top plate (2), a power supply and a controller are arranged in the electric cabinet (4), and the controller is electrically connected with the electric telescopic rod (11), the laser range finder (10), the first stepping motor (602), the second stepping motor (19) and the electric hydraulic cylinder (5) in a control manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984341.1A CN115318881A (en) | 2022-08-16 | 2022-08-16 | Automatic flange correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210984341.1A CN115318881A (en) | 2022-08-16 | 2022-08-16 | Automatic flange correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115318881A true CN115318881A (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210984341.1A Pending CN115318881A (en) | 2022-08-16 | 2022-08-16 | Automatic flange correction device |
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| Country | Link |
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| CN (1) | CN115318881A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102281A (en) * | 2023-10-19 | 2023-11-24 | 河南源诚建工科技有限公司 | H-shaped steel correcting device |
-
2022
- 2022-08-16 CN CN202210984341.1A patent/CN115318881A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102281A (en) * | 2023-10-19 | 2023-11-24 | 河南源诚建工科技有限公司 | H-shaped steel correcting device |
| CN117102281B (en) * | 2023-10-19 | 2024-01-26 | 河南源诚建工科技有限公司 | H-shaped steel correcting device |
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