CN112658715A - Cold-rolled section steel repairing method - Google Patents
Cold-rolled section steel repairing method Download PDFInfo
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- CN112658715A CN112658715A CN202011428111.4A CN202011428111A CN112658715A CN 112658715 A CN112658715 A CN 112658715A CN 202011428111 A CN202011428111 A CN 202011428111A CN 112658715 A CN112658715 A CN 112658715A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 73
- 239000010959 steel Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 36
- 238000005498 polishing Methods 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides a cold-rolled section steel repairing method, which uses a cold-rolled section steel repairing device, wherein the cold-rolled section steel repairing device comprises a mounting frame, a sliding chute, a vertical adjusting device and a horizontal clamping device; the vertical adjusting device and the horizontal clamping device can fix four groups of vertical surfaces of the H-shaped steel, and meanwhile, the use of the supporting blocks is matched, so that the stability of clamping the H-shaped steel can be improved, the problem that the H-shaped steel cannot be stably fixed due to the lack of a special fixing device in the prior art and the grinding of the H-shaped steel is influenced is solved, in addition, the four groups of grinding blocks can be simultaneously started, so that four groups of welding seams can be synchronously and automatically ground, the manpower is saved, and the grinding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of cold-rolled section steel, in particular to a cold-rolled section steel repairing method.
Background
The cold rolling refers to the cold continuous rolling of hot rolled steel coils serving as raw materials after removing oxide skins by pickling, the common cold rolled section steel in the prior art is H-shaped steel, and the H-shaped steel is an economic section high-efficiency section steel with more optimized section area distribution and more reasonable strength-to-weight ratio and is named because the section is the same as the English letter H. Because all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structure weight and the like in all directions and is widely applied.
H shaped steel adopts welding process mostly in manufacturing process, welding H shaped steel is to cut into suitable width with the belted steel that thickness is suitable, with the edge of a wing and web welding together on continuous type welding unit, the oxidation reaction takes place to lead to its emergence loss with the vapor in the air in the welding seam in long-term the use, need the welding seam to restore in proper order, thereby carry out the repairing process to H shaped steel welding seam among the prior art and need polish the H shaped steel welding seam and clear up the oxide, generally can adopt the manual work to operate to H shaped steel in-process of polishing among the prior art, waste time and energy like this, the work efficiency is reduced, in addition need fix H shaped steel at the in-process of polishing, lack special fixing device among the prior art, lead to its unable stable fixed with H shaped steel, the polishing process to H shaped steel has been influenced.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that a cold-rolled section steel repairing method uses cold-rolled section steel repairing equipment, the cold-rolled section steel repairing equipment comprises a mounting frame, a sliding groove, a vertical adjusting device and a horizontal clamping device, and the specific method for repairing the cold-rolled section steel by adopting the cold-rolled section steel repairing equipment is as follows:
s1, clamping H-shaped steel, namely placing the H-shaped steel on the surface of a supporting block, adjusting the distance between a pair of first ball nuts on two sides through a first motor, and simultaneously enabling each group of grinding mechanisms to be sequentially clamped on four sides of the vertical surface of the H-shaped steel by adjusting the position of a first threaded rod in a fixed cylinder;
s2, polishing the welding seams of the H-shaped steel, adjusting the angle of a fixed roller, enabling four groups of polishing blocks to be sequentially lapped on the surfaces of the four groups of welding seams, starting a second motor, and enabling the polishing blocks to reciprocate along the direction of a reciprocating screw rod under the action of a second ball nut, so that polishing and cleaning of the welding seams are realized;
s3, repairing the welding seam of the H-shaped steel, namely coating steel powder on the surface of the polished welding seam, and then welding and repairing the welding seam by using welding equipment;
the horizontal clamping device is arranged in an inner cavity of the mounting frame, the mounting frame comprises a bottom plate, side plates, a base and supporting blocks, the base is symmetrically arranged on the left side and the right side of the bottom plate, a pair of side plates is symmetrically and vertically arranged on the left side and the right side of the top of the bottom plate, the supporting blocks are arranged in the center of the bottom plate, the sliding grooves comprise a first sliding groove and a second sliding groove, the front end and the rear end of the inner side of each group of side plates are vertically provided with the second sliding grooves, the first sliding grooves are divided into two groups, and the two groups of first sliding grooves vertically penetrate through the centers of the inner walls of the two groups of side plates respectively;
the vertical adjusting device comprises idler wheels, first screw rods, a conveyor belt, a first motor and first ball nuts, wherein two groups of the first screw rods are arranged, the two groups of the first screw rods are vertically arranged in the inner cavities of the two groups of the second chutes, a pair of the first ball nuts are symmetrically and threadedly arranged on the surfaces of the two groups of the first screw rods, the idler wheels are arranged right above the two groups of the first screw rods, the bottom centers of the idler wheels are rotatably connected with the top centers of the first screw rods through rotating shafts, the side walls of the two groups of the idler wheels are in transmission connection through the conveyor belt, the first motor is fixedly arranged at the top center of the side plate on the left side, and the rotating shafts of the first motors are rotatably connected with the top centers of the idler;
the horizontal clamping device comprises a fixed cylinder, a connecting rod, a first threaded rod, an installation block, a polishing mechanism and a first fixed nut, wherein the upper side and the lower side of each group of first sliding chutes are symmetrically provided with the fixed cylinder, the outer side tail end of the fixed cylinder is in sliding connection with the first sliding chutes, the left side and the right side of each group of first ball nuts are fixedly connected with the side wall of the fixed cylinder through the connecting rod, the inner side surface of the fixed cylinder is sleeved with the first threaded rod, the surface threads of the first threaded rod are provided with the first fixed nut, the first fixed nut is in lap joint with the inner side wall of the connecting rod, the inner side tail end of the first threaded rod is provided with the installation block, and the polishing mechanism is arranged between the inner walls of the installation blocks positioned on the;
the polishing mechanism comprises a fixed roller, a first through groove, a third chute, a polishing block, a second through groove, a second ball nut, a reciprocating screw rod and a second motor, wherein the fixed roller is a cylindrical block, the side walls of the front side and the rear side of the fixed roller are respectively installed on the inner walls of two groups of installation blocks, the first through groove penetrates through and is chiseled on the surfaces of the front side and the rear side of the fixed roller, the third chute is chiseled on the surface of the bottom of the first through groove horizontally, the polishing block is arranged in the first through groove, the center of the bottom of the polishing block is connected with the third chute in a sliding manner through a connecting shaft, the second through groove penetrates through and is chiseled on the front side and the rear side of the surface of the fixed roller above the first through groove, the bottom of the second through groove is communicated with the top of the first through groove, the reciprocating screw rod is installed in the second through groove, and the, the second ball nut is positioned in the inner cavity of the second through groove, the bottom of the second ball nut is fixedly connected with the center of the top of the polishing block through a connecting rod, the center of the outer side of the reciprocating screw rod is rotatably connected with a rotating shaft of a second motor through a rotating shaft, and the second motor is fixedly installed on the outer wall of the installation block;
preferably; the supporting block comprises a supporting plate body, a second threaded rod and second fixing nuts, the supporting plate body is located at the top center of the bottom plate, the second threaded rod is vertically arranged at the bottom center of the supporting plate body and penetrates through the surface center of the bottom plate to be arranged at the bottom of the bottom plate, two groups of second fixing nuts are arranged on the surface threads of the second threaded rod, and the two groups of second fixing nuts are respectively overlapped at the top surface center and the bottom surface center of the bottom plate.
Preferably; the first screw rod comprises a first screw rod A and a first screw rod B, the first screw rod A and the first screw rod B are equal in length and same in cross section, the bottom tail end of the first screw rod A is fixedly connected with the top tail end of the first screw rod B, and the thread direction of the first screw rod A is opposite to that of the first screw rod B.
Preferably; and the two groups of the outer ends of the fixed cylinders and the two groups of the first ball nuts positioned on the same side are positioned on the same horizontal plane.
Preferably; and a corner adjusting mechanism is arranged between the fixed roller and the mounting block and used for adjusting the position of the polishing block.
Preferably; the polishing block is of a round cake-shaped structure, and the side wall of the polishing block is a frosted surface.
Has the advantages that:
the vertical adjusting device and the horizontal clamping device can fix four groups of vertical surfaces of the H-shaped steel, and meanwhile, the use of the supporting blocks is matched, so that the stability of clamping the H-shaped steel can be improved, the problem that the H-shaped steel cannot be stably fixed due to the lack of a special fixing device in the prior art and the grinding of the H-shaped steel is influenced is solved, in addition, the four groups of grinding blocks can be simultaneously started, so that four groups of welding seams can be synchronously and automatically ground, the manpower is saved, and the grinding efficiency is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic perspective view of a cold rolled section steel reconditioning apparatus according to the present invention;
FIG. 3 is a schematic perspective view of the grinding mechanism of FIG. 2;
FIG. 4 is an enlarged schematic view of A in FIG. 3;
FIG. 5 is a partial top view of the side plate of FIG. 2;
FIG. 6 is a schematic view of the first lead screw mechanism of FIG. 2;
FIG. 7 is a schematic view of a supporting block mechanism of the cold rolled section steel reconditioning equipment of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 7, a method for repairing cold-rolled section steel uses a cold-rolled section steel repairing device, the cold-rolled section steel repairing device comprises a mounting frame 1, a chute 2, a vertical adjusting device 3 and a horizontal clamping device 4, and the method for repairing cold-rolled section steel by the cold-rolled section steel repairing method comprises the following steps:
s1, clamping the H-shaped steel, namely placing the H-shaped steel on the surface of the supporting block 14, adjusting the distance between a pair of first ball nuts 35 on two sides through a first motor 34, and simultaneously, sequentially clamping each group of grinding mechanisms 45 on four sides of the vertical surface of the H-shaped steel by adjusting the position of a first threaded rod 43 in a fixed cylinder 41;
s2, polishing the welding seam of the H-shaped steel, adjusting the angle of a fixing roller 451, enabling four groups of polishing blocks 454 to be sequentially lapped on the surfaces of the four groups of welding seams, starting a second motor 458, and enabling the polishing blocks 454 to reciprocate along the direction of a reciprocating screw rod 457 under the action of a second ball nut 456, so that polishing and cleaning of the welding seam are achieved;
s3, repairing the welding seam of the H-shaped steel, namely coating steel powder on the surface of the polished welding seam, and then welding and repairing the welding seam by using welding equipment;
the inner walls of the left side and the right side of the mounting rack 1 are both provided with sliding chutes 2, the vertical adjusting devices 3 are positioned at the tops of the left side and the right side of the mounting rack 1, the horizontal clamping devices 4 are arranged in an inner cavity of the mounting rack 1, the mounting rack 1 comprises a bottom plate 11, side plates 12, a base 13 and supporting blocks 14, the base 13 is symmetrically arranged on the left side and the right side of the bottom plate 11, a pair of side plates 12 is symmetrically and vertically arranged on the left side and the right side of the top of the bottom plate 11, the supporting blocks 14 are arranged in the center of the bottom plate 11, the sliding chutes 2 comprise first sliding chutes 21 and second sliding chutes 22, the front end and the rear end of the inner side of each group of the side plates 12 are both vertically provided with second sliding chutes 22, the first sliding chutes 21 are two groups;
the supporting block 14 comprises a supporting plate body 141, a second threaded rod 142 and second fixing nuts 143, the supporting plate body 141 is located at the top center of the bottom plate 11, the second threaded rod 142 is vertically arranged at the bottom center of the supporting plate body 141, the second threaded rod 142 is arranged at the bottom of the bottom plate 11 after penetrating through the surface center of the bottom plate 11, two groups of second fixing nuts 143 are arranged on the surface threads of the second threaded rod 142, and the two groups of second fixing nuts 143 are respectively lapped at the top surface center and the bottom surface center of the bottom plate 11;
the vertical adjusting device 3 comprises rollers 31, first screw rods 32, a conveyor belt 33, a first motor 34 and first ball nuts 35, the first screw rods 32 are divided into two groups, the two groups of first screw rods 32 are vertically arranged in the two groups of inner cavities of the second chute 22, the surfaces of the two groups of first screw rods 32 are symmetrically and threadedly provided with a pair of first ball nuts 35, the rollers 31 are arranged right above the two groups of first screw rods 32, the bottom centers of the rollers 31 are rotatably connected with the top centers of the first screw rods 32 through rotating shafts, the side walls of the two groups of roller rods 31 are in transmission connection through the conveyor belt 33, the top centers of the side plates 12 positioned on the left side are fixedly provided with the first motor 34, the rotating shafts of the first motor 34 are rotatably connected with the top centers of the roller rods 31 positioned on the left side, each first screw rod 32 comprises a first screw rod A321 and a first screw rod B322, the lengths of the first screw rod A321 and the first screw rod B322 are equal, the cross sections of the first screw rod A321 and the first screw rod B322 are the same, the bottom end of the first screw rod A321 is fixedly connected with the top end of the first screw rod B322, the thread direction of the first screw rod A321 is opposite to that of the first screw rod B322, and the outer ends of two groups of the fixed cylinders 41 on the same surface of the first chute 21 and two groups of the first ball nuts 35 on the same side are respectively located on the same horizontal plane;
the horizontal clamping device 4 comprises a fixed cylinder 41, a connecting rod 42, a first threaded rod 43, an installation block 44, a polishing mechanism 45 and a first fixed nut 46, wherein the fixed cylinder 41 is symmetrically arranged on the upper side and the lower side of each group of first sliding chutes 21, the outer end of each fixed cylinder 41 is slidably connected with the first sliding chutes 21, the left side and the right side of each group of first ball nuts 35 are fixedly connected with the side wall of the fixed cylinder 41 through the connecting rod 42, the first threaded rod 43 is sleeved on the inner side surface of the fixed cylinder 41, the first fixed nut 46 is installed on the surface thread of the first threaded rod 43, the first fixed nut 46 is overlapped with the inner side wall of the connecting rod 42, the installation block 44 is arranged at the inner end of the inner side of the first threaded rod 43, and the polishing mechanism 45 is arranged between the inner walls of the installation blocks 44 on the front side and the;
the polishing mechanism 45 comprises a fixed roller 451, a first through groove 452, a third through groove 453, a polishing block 454, a second through groove 455, a second ball nut 456, a reciprocating screw 457 and a second motor 458, wherein the fixed roller 451 is a cylindrical block, the front and rear side walls of the fixed roller 451 are respectively installed on the inner walls of the two sets of installation blocks 44, the front and rear side surfaces of the fixed roller 451 are perforated with the first through groove 452, the bottom surface of the first through groove 452 is horizontally perforated with the third through groove 453, the first through groove 452 is internally provided with the polishing block 454, the polishing block 454 is in a round cake-shaped structure, the side wall of the polishing block 454 is a polishing surface, the center of the bottom of the polishing block 454 is slidably connected with the third through a connecting shaft, the front and rear sides of the surface of the fixed roller 451 above the first through groove 452 are perforated with the second through groove 455, the bottom of the second through groove 455 is communicated with the top of the first through groove 452, a reciprocating screw rod 457 is installed in the second through groove 455, a second ball nut 456 is installed on the surface of the reciprocating screw rod 457 through threads, the second ball nut 456 is located in an inner cavity of the second through groove 455, the bottom of the second ball nut 456 is fixedly connected with the top center of the grinding block 454 through a connecting rod, the outer side center of the reciprocating screw rod 457 is rotatably connected with a rotating shaft of a second motor 458 through a rotating shaft, the second motor 458 is fixedly installed on the outer wall of the mounting block 44, and a rotation angle adjusting mechanism is arranged between the fixed roller 451 and the mounting block 44 and used for adjusting the position of the grinding block 454.
In the use process of the invention, H-shaped steel is placed on the surface of the supporting block 14, the distance between a pair of first ball nuts 35 at two sides is adjusted by the first motor 34, meanwhile, each group of grinding mechanisms 45 are sequentially clamped on the vertical side of the H-shaped steel by adjusting the position of the first threaded rod 43 in the fixed cylinder 41, the angle of the fixed roller 451 is adjusted, four groups of grinding blocks 454 are sequentially lapped on the surfaces of four groups of welding seams, the second motor 458 is started, and the grinding blocks 454 reciprocate along the direction of the reciprocating screw rod 457 under the action of the second ball nuts 456, thereby realizing the grinding and cleaning of the welding seams.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cold rolled section steel repairing method uses a cold rolled section steel repairing device, the cold rolled section steel repairing device comprises a mounting frame (1), a sliding groove (2), a vertical adjusting device (3) and a horizontal clamping device (4), and the method is characterized in that: the specific method for repairing the cold-rolled section steel by adopting the cold-rolled section steel repairing equipment is as follows:
s1, clamping the H-shaped steel, namely placing the H-shaped steel on the surface of a supporting block (14), adjusting the distance between a pair of first ball nuts (35) on two sides through a first motor (34), and simultaneously, sequentially clamping each group of grinding mechanisms (45) on four sides of the vertical surface of the H-shaped steel through adjusting the position of a first threaded rod (43) in a fixed cylinder (41);
s2, polishing the welding seams of the H-shaped steel, adjusting the angle of a fixed roller (451), enabling four groups of polishing blocks (454) to be sequentially lapped on the surfaces of the four groups of welding seams, starting a second motor (458), and enabling the polishing blocks (454) to reciprocate along the direction of a reciprocating screw rod (457) under the action of a second ball nut (456), so that polishing and cleaning of the welding seams are realized;
s3, repairing the welding seam of the H-shaped steel, namely coating steel powder on the surface of the polished welding seam, and then welding and repairing the welding seam by using welding equipment;
wherein, the inner walls of the left side and the right side of the mounting rack (1) are all provided with sliding chutes (2), the vertical adjusting device (3) is positioned at the top of the left side and the right side of the mounting rack (1), the horizontal clamping device (4) is arranged in the inner cavity of the mounting rack (1), the mounting rack (1) comprises a bottom plate (11), side plates (12), a base (13) and a supporting block (14), the bases (13) are symmetrically arranged at the left side and the right side of the bottom plate (11), a pair of side plates (12) are symmetrically and vertically arranged at the left side and the right side of the top of the bottom plate (11), the supporting block (14) is arranged at the center of the bottom plate (11), the sliding chutes (2) comprise first sliding chutes (21) and second sliding chutes (22), the front end and the rear end of the inner side of each group of the side plates (12) are, the two groups of first sliding grooves (21) vertically penetrate through the centers of the inner walls of the two groups of side plates (12) respectively;
the vertical adjusting device (3) comprises a roller (31), a first screw rod (32), a conveyor belt (33), a first motor (34) and a first ball nut (35), the first screw rods (32) are divided into two groups, the two groups of first screw rods (32) are vertically arranged in the inner cavities of the two groups of second sliding chutes (22), the surfaces of the two groups of first screw rods (32) are symmetrically and threadedly provided with a pair of first ball nuts (35), rollers (31) are arranged right above the two groups of first screw rods (32), the bottom centers of the rollers (31) are rotationally connected with the top centers of the first screw rods (32) through rotating shafts, the side walls of the two groups of rollers (31) are in transmission connection through a conveying belt (33), a first motor (34) is fixedly installed at the top centers of the side plates (12) on the left side, the rotating shaft of the first motor (34) is rotatably connected with the top center of the roller (31) on the left side;
the horizontal clamping device (4) comprises a fixed cylinder (41), a connecting rod (42), a first threaded rod (43), an installation block (44), a polishing mechanism (45) and a first fixing nut (46), wherein each group of the fixed cylinder (41) is symmetrically arranged on the upper side and the lower side of the first sliding chute (21), the outer end of the fixed cylinder (41) is in sliding connection with the first sliding chute (21), each group of the fixed cylinder (41) is fixedly connected with the side wall of the fixed cylinder (41) through the connecting rod (42), the inner side surface of the fixed cylinder (41) is sleeved with the first threaded rod (43), the first fixing nut (46) is installed on the surface thread of the first threaded rod (43), the first fixing nut (46) is in lap joint with the inner side wall of the connecting rod (42), the installation block (44) is arranged at the inner end of the first threaded rod (43), a polishing mechanism (45) is arranged between the inner walls of the mounting blocks (44) positioned at the front side and the rear side;
the grinding mechanism (45) comprises a fixed roller (451), a first through groove (452), a third sliding groove (453), a grinding block (454), a second through groove (455), a second ball nut (456), a reciprocating screw rod (457) and a second motor (458), wherein the fixed roller (451) is a cylindrical block, the front side wall and the rear side wall of the fixed roller (451) are respectively installed on the inner walls of the two groups of installation blocks (44), the front side surface and the rear side surface of the fixed roller (451) are provided with the first through groove (452) in a penetrating and chiseling mode, the bottom surface of the first through groove (452) is provided with the third sliding groove (453) in a horizontal sliding mode, the grinding block (454) is arranged in the first through groove (452), the bottom center of the grinding block (454) is connected with the third sliding groove (453) in a sliding mode through a connecting shaft, the front side surface and the rear side wall of the fixed roller (451) above the first through groove (452) are provided with the second through groove (455, the bottom of the second through groove (455) is communicated with the top of the first through groove (452), a reciprocating screw rod (457) is installed in the second through groove (455), a second ball nut (456) is installed on the surface of the reciprocating screw rod (457) in a threaded manner, the second ball nut (456) is located in an inner cavity of the second through groove (455), the bottom of the second ball nut (456) is fixedly connected with the top center of the grinding block (454) through a connecting rod, the outer center of the reciprocating screw rod (457) is rotatably connected with a rotating shaft of a second motor (458) through a rotating shaft, and the second motor (458) is fixedly installed on the outer wall of the mounting block (44).
2. The method for repairing cold-rolled section steel according to claim 1, wherein: the supporting block (14) comprises a supporting plate body (141), a second threaded rod (142) and second fixing nuts (143), the supporting plate body (141) is located at the top center of the bottom plate (11), the second threaded rod (142) is vertically arranged at the bottom center of the supporting plate body (141), the second threaded rod (142) penetrates through the surface center of the bottom plate (11) and then is arranged at the bottom of the bottom plate (11), two groups of second fixing nuts (143) are installed on the surface threads of the second threaded rod (142), and the two groups of second fixing nuts (143) are respectively overlapped at the top surface center and the bottom surface center of the bottom plate (11).
3. The method for repairing cold-rolled section steel according to claim 1, wherein: the first screw rod (32) comprises a first screw rod A (321) and a first screw rod B (322), the first screw rod A (321) and the first screw rod B (322) are equal in length and identical in cross section, the bottom end of the first screw rod A (321) is fixedly connected with the top end of the first screw rod B (322), and the thread direction of the first screw rod A (321) is opposite to that of the first screw rod B (322).
4. The method for repairing cold-rolled section steel according to claim 1, wherein: the outer ends of the two groups of fixed cylinders (41) positioned on the surface of the same first sliding groove (21) and the two groups of first ball nuts (35) positioned on the same side are positioned on the same horizontal plane.
5. The method for repairing cold-rolled section steel according to claim 1, wherein: and a rotation angle adjusting mechanism is arranged between the fixed roller (451) and the mounting block (44) and is used for adjusting the position of the polishing block (454).
6. The method for repairing cold-rolled section steel according to claim 1, wherein: the polishing block (454) is of a round cake-shaped structure, and the side wall of the polishing block (454) is a frosted surface.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116944799A (en) * | 2023-08-02 | 2023-10-27 | 江苏锦航机械制造有限公司 | Repairing device based on steel roller and using method thereof |
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| CN116944799B (en) * | 2023-08-02 | 2024-04-23 | 江苏锦航机械制造有限公司 | Repairing device based on steel roller and using method thereof |
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| CN112658715B (en) | 2022-03-29 |
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Denomination of invention: A Method of Repairing Cold Rolled Section Steel Effective date of registration: 20221215 Granted publication date: 20220329 Pledgee: Postal Savings Bank of China Limited Changle County sub branch Pledgor: SHANDONG HONGLI SPECIAL SECTION TUBE CO.,LTD. Registration number: Y2022980027554 |
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