CN112845834A - Rolling module for metal round pipe rolling incremental forming - Google Patents
Rolling module for metal round pipe rolling incremental forming Download PDFInfo
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- CN112845834A CN112845834A CN202110193232.3A CN202110193232A CN112845834A CN 112845834 A CN112845834 A CN 112845834A CN 202110193232 A CN202110193232 A CN 202110193232A CN 112845834 A CN112845834 A CN 112845834A
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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
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
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Abstract
The invention discloses a rolling module for rolling and incremental forming of a metal round pipe, which comprises a roller mechanism, a radial opening transmission mechanism, an axial rotation transmission mechanism and a bracket, wherein the roller mechanism is arranged on the bracket; the roller mechanism comprises a roller group consisting of a first roller and a second roller and a supporting rod; the radial spreading transmission mechanism comprises a first motor, a first coupler, a lead screw nut and a connecting rod; the axial rotation transmission mechanism comprises a second motor, a second coupler and a rolling connecting shaft; the bracket comprises a motor mounting rack, a barrel, a round bottom cover and a cylindrical box body; the first motor, the motor mounting frame, the first coupler, the lead screw, the circular bottom cover, the rolling connecting shaft, the second coupler and the second motor are coaxially mounted. The rolling module for the metal round pipe rolling incremental forming can roll the corrugated pipe with high corrugation height and narrow corrugation width in a ground mode, and is high in modularization degree, strong in universality, stable and reliable in structure.
Description
Technical Field
The invention relates to a rolling module for rolling and incremental forming of a metal round pipe.
Background
The metal corrugated pipe is a pipe part with regular wavy shape and transverse corrugations. The elastic component has high bending fatigue strength and elastic stability, can generate axial, transverse and angular displacements under the action of external force, is often used as an elastic element for manufacturing compensators, flexible connecting pieces, heat exchangers and the like, and is widely applied to the fields of aerospace, electric instruments, petrochemical industry, automobiles, ships and the like.
The forming process of the corrugated pipe comprises mechanical forming, hydraulic forming, welding forming and the like. The hydroforming process is relatively complex, and has certain limitation on the shape of the corrugation, so that the corrugated pipe with high corrugation height and narrow corrugation width is not easy to form. The mechanical bulging is usually formed by radially expanding and bulging a plurality of die sections, the forming quality is not easy to control, and the die sections are all designed in a targeted manner, so that the universality is not strong.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the rolling module for the metal round pipe rolling incremental forming, which can roll the corrugated pipe with high corrugation height and narrow corrugation width, has high modularization degree, strong universality and stable and reliable structure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a rolling module for rolling and incremental forming of a metal round pipe comprises a roller mechanism, a radial expanding transmission mechanism, an axial rotating transmission mechanism and a bracket; the roller mechanism comprises a roller group consisting of a first roller and a second roller and a supporting rod; the radial spreading transmission mechanism comprises a first motor, a first coupler, a lead screw nut and a connecting rod; the axial rotation transmission mechanism comprises a second motor, a second coupler and a rolling connecting shaft; the bracket comprises a motor mounting rack, a barrel, a round bottom cover and a cylindrical box body; the first motor, the motor mounting frame, the first coupler, the lead screw nut, the circular bottom cover, the rolling connecting shaft, the second coupler and the second motor are coaxially mounted;
6 support rods are uniformly arranged on the circular bottom cover, one ends of the support rods are provided with roller groups, and the roller groups are positioned on the outer side of the circular bottom cover; one end of the lead screw is connected with a first motor through a first coupler, a motor mounting frame is further sleeved on the first coupler between the lead screw and the first motor, the first motor is fixedly mounted on the motor mounting frame, and the other end of the lead screw is connected with a circular bottom cover through a bearing; the screw nut is meshed with the screw; one end of the connecting rod is connected with the other end of the supporting rod, and the other end of the connecting rod is connected with the outer wall of the screw nut; a cylinder is arranged between the motor mounting frame and the round bottom cover;
a second motor is fixedly arranged in the cylindrical box body; one end of the rolling connecting shaft is connected with the second motor through a second coupler, and the other end of the rolling connecting shaft is fixedly connected with the round bottom cover.
The roller mechanism comprises 6 roller groups consisting of a first roller and a second roller; 1 group of roller groups are respectively arranged on the 6 support rods; a supporting rod bearing mounting hole is formed in one end of the supporting rod, and a deep groove ball bearing is mounted in the supporting rod bearing mounting hole; a first roller is arranged on the deep groove ball bearing positioned at one side of the supporting rod, and a second roller is arranged on the deep groove ball bearing positioned at the other side of the supporting rod; the second roller is fixedly connected with the first roller through a screw and a nut;
a limiting platform is further arranged on the supporting rod below the supporting rod bearing mounting hole and used for preventing the roller train from contacting the cylinder body and the circular bottom cover, a switching connecting platform is arranged on the side surface of the other end of the supporting rod, and a T-shaped groove is formed in the side surface of the supporting rod; the switching connecting platform is provided with a supporting rod shaft mounting through hole and is connected with the connecting rod through the supporting rod shaft mounting through hole;
the first roller is a roller with one surface being a curved surface and the other surface being a plane; a supporting rod bearing mounting hole and a first ring groove for mounting the deep groove ball bearing are formed in the upper plane side of the first roller wheel, a screw mounting through hole is formed in the middle of the upper plane side of the first roller wheel, a shaft surface matched with an inner hole of the deep groove ball bearing is formed in the first roller wheel on the periphery of the screw mounting through hole, and a step-shaped shaft shoulder is formed in the first roller wheel at the bottom of the shaft surface; a first concave table is arranged in the middle of the curved surface of the first roller on the curved surface side of the first roller, and the first concave table is communicated with the center of the screw mounting through hole;
the second roller is also a roller with one surface being a curved surface and the other surface being a plane; the upper plane side of the second roller is provided with a shaft surface mounting concave platform matched with the shaft surface of the first roller for use; a nut mounting through hole is formed in the middle of the upper plane side of the second roller, a supporting rod bearing mounting hole and a second ring groove for mounting a deep groove ball bearing are formed in the periphery of the shaft surface mounting concave table, and a bearing positioning boss matched with a step-shaped shaft shoulder on the first roller is formed between the second ring groove and the shaft surface mounting concave table; a second concave table is arranged in the middle of the curved surface of the second roller on the curved surface side of the second roller, and the second concave table, the nut mounting through hole, the axial surface mounting concave table, the second ring groove and the bearing positioning boss are communicated in center;
the two ends of the connecting rod are integrally provided with connecting rod connecting platforms, and the side surfaces of the connecting rod connecting platforms are provided with connecting rod mounting through holes;
connecting blocks which are equal in number and correspond to the connecting rods in position are mounted on the outer side of the screw nut, connecting block mounting holes are formed in the connecting blocks, and screw nut internal threads are formed in the hollow inner side of the screw nut;
the internal thread of the screw nut is meshed with the screw rod; the connecting rod connecting platform at one end of the connecting rod is connected with a supporting rod shaft mounting through hole of the switching connecting platform on the supporting rod through a connecting rod mounting through hole by a pin, and the connecting rod connecting platform at the other end of the connecting rod is connected with a connecting block mounting hole of a connecting block on the screw nut through a connecting rod mounting through hole by a pin;
the screw rod comprises a first shaft section, a first thread section and a second shaft section which are integrally formed; a second shaft section of the lead screw is arranged in the first coupler; and the first thread section of the lead screw is meshed and connected with the internal thread of the lead screw nut on the lead screw nut.
The curved surface shapes of the first roller curved surface and the second roller curved surface are consistent with the corrugated shape required to be formed by rolling. Can be individually replaced in pairs according to different corrugated shapes.
A screw hole is formed in the center of the circular bottom cover, and a first shaft section of a screw is mounted in the screw hole of the circular bottom cover through a bearing; 6T-shaped guide rails are uniformly arranged on the circular bottom cover, and T-shaped grooves of the support rods are movably arranged on the T-shaped guide rails of the circular bottom cover; the supporting rods slide on the T-shaped guide rails to realize outward pushing and inward folding of the roller groups; a rolling connecting shaft fixing block is arranged on the other side of the circular bottom cover, a rolling connecting shaft connecting hole and a fastening hole for fixing the circular bottom cover and the rolling connecting shaft are formed in the rolling connecting shaft fixing block, and the rolling connecting shaft is fixedly arranged in the rolling connecting shaft connecting hole;
6 bottom cover mounting platforms are uniformly arranged on the circumferential edge of one side of the circular bottom cover, which is provided with the T-shaped guide rails, and the distribution positions of the bottom cover mounting platforms are the circumferential edges of the circular bottom cover between every 2T-shaped guide rails; a bottom cover mounting platform mounting hole is formed in the bottom cover mounting platform;
the motor mounting frame comprises a square motor mounting platform, and four corners of the square motor mounting platform are connected with the annular mounting ring through mounting frame supporting rods; a coupler mounting through hole is formed in the middle of the square motor mounting platform; the square motor mounting platform is also provided with a motor mounting hole, and the first motor is fixedly connected with the square motor mounting platform through a screw by utilizing the motor mounting hole; 4 cylinder installation platforms are uniformly arranged on the circular installation ring, 4 circular end cover installation abdicating grooves are uniformly arranged on the circular installation ring, and the cylinder installation platforms and the circular end cover installation abdicating grooves are distributed at intervals; and a cylinder mounting hole is formed in the cylinder mounting platform.
4 motor mounting rack mounting platforms are uniformly arranged at one end of the barrel, 6 barrel mounting platforms are uniformly arranged at the other end of the barrel, and support rod abdicating holes are uniformly arranged between every 2 barrel mounting platforms;
the 4 motor mounting rack mounting platforms of the barrel are fixedly connected with the 4 barrel mounting platforms of the motor mounting rack through bolts and nuts respectively; the 6 bottom cover mounting platforms on the circular bottom cover are fixedly connected with the 6 barrel mounting platforms of the barrel through bolts and nuts respectively;
a second motor mounting hole and a second coupling mounting hole are formed in the cylindrical box body; and a second coupler at the connecting end of the second motor penetrates through the second coupler mounting hole to fixedly connect the shell of the second motor with the second motor mounting hole in the inner wall of the cylindrical box body through screws and nuts.
The invention has the following beneficial effects:
(1) the invention provides a rolling module for metal round tube rolling incremental forming based on incremental forming technology, wherein a roller is in rolling contact with a tube, the friction force is small, multiple pairs of roller groups simultaneously roll and form the tube, the tube is uniformly stressed, and the forming quality is good. And the curved surface shape of the roller is consistent with the waveform of the corrugated pipe required to be rolled, the roller can be independently replaced according to different corrugated shapes, the operation is simple, and the universality is high.
(2) The first motor drives the first coupler to rotate to drive the lead screw to rotate, and the rotary motion of the lead screw is converted into the movement of the lead screw nut through the matching of the lead screw and the lead screw nut; the movement of the screw nut drives the connecting rod to extend out in the radial direction, and the supporting rod is pushed to slide on the T-shaped guide rail of the round bottom cover, so that the radial push-out of the roller group is realized; meanwhile, the second motor drives the second coupler to rotate to drive the rolling connecting shaft to rotate together with the round bottom cover, so that the roller mechanism rotates axially and pushes out radially, and finally the rolling module performs rolling incremental forming on the metal round pipe.
(3) The shaft shoulder of the first roller and the bearing positioning boss of the second roller axially position the deep groove ball bearing, so that the mechanism has better and more stable running precision; the first ring groove and the second ring groove are arranged on the connecting rod and the deep groove ball bearing in a yielding mode, so that the connecting rod and the deep groove ball bearing are prevented from being mounted and moved, and the mechanism is more effective and reliable.
(4) The support rod is provided with a limiting platform, so that the contact and interference of the roller group and the cylinder body can be prevented.
The invention can roll and form the corrugated pipe or the bulging pipe with high corrugation height and narrow corrugation width, and has high modularization degree, strong universality and stable and reliable mechanism.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partially enlarged structural view of the roller mechanism and the radial expanding transmission mechanism of FIG. 1 with the cylinder removed;
FIG. 3 is a partially enlarged view of the axial rotation transmission mechanism of FIG. 1 with the cylindrical housing removed;
FIG. 4 is an enlarged cross-sectional view of the roller mechanism of FIG. 2;
FIG. 5 is an enlarged schematic view of the support rod of FIG. 2;
FIG. 6 is a rear view of FIG. 5;
FIG. 7 is an enlarged schematic view of the first roller of FIG. 4;
FIG. 8 is an enlarged schematic view of the second roller of FIG. 4;
FIG. 9 is an enlarged schematic view of the connecting rod of FIG. 2;
FIG. 10 is an enlarged schematic view of the screw nut of FIG. 2;
FIG. 11 is an enlarged schematic view of the lead screw of FIG. 2;
FIG. 12 is an enlarged view of the circular bottom cover of FIG. 2;
FIG. 13 is a rear view of FIG. 11;
FIG. 14 is an enlarged schematic view of the motor mount of FIG. 2;
FIG. 15 is an enlarged schematic view of the cartridge of FIG. 1;
fig. 16 is an enlarged schematic view of the cylindrical case of fig. 1.
Detailed Description
The rolling module for metal round tube rolling incremental forming in this embodiment, as shown in fig. 1 to 16, includes a roller mechanism 1, a radial expanding transmission mechanism 2, an axial rotation transmission mechanism 3, and a bracket 4; the roller mechanism 1 comprises a roller group consisting of a first roller 11 and a second roller 12 and a support rod 13; the radial expansion transmission mechanism 2 comprises a first motor 21, a first coupler 22, a lead screw 23, a lead screw nut 24 and a connecting rod 25; the axial rotation transmission mechanism 3 comprises a second motor 31, a second coupler 32 and a rolling connecting shaft 33; the bracket 4 comprises a motor mounting rack 41, a cylinder 42, a round bottom cover 43 and a cylindrical box 44; wherein the first motor 21, the motor mounting bracket 41, the first coupler 22, the lead screw 23, the lead screw nut 24, the round bottom cover 43, the rolling connecting shaft 33, the second coupler 32 and the second motor 31 are coaxially mounted;
6 support rods 13 are uniformly arranged on the circular bottom cover 43, and a roller set is arranged at one end of each support rod 13 and is positioned at the outer side of the circular bottom cover 43; one end of the lead screw 23 is connected with the first motor 21 through a first coupler 22, a motor mounting rack 41 is further sleeved on the first coupler 22 between the lead screw 23 and the first motor 21, the first motor 21 is fixedly mounted on the motor mounting rack 41, and the other end of the lead screw 23 is connected with a circular bottom cover 43 through a bearing; the lead screw nut 24 is meshed with the lead screw 23; one end of the connecting rod 25 is connected with the other end of the supporting rod 13, and the other end of the connecting rod 25 is connected with the outer wall of the screw nut 24; a cylinder 42 is arranged between the motor mounting frame 41 and the circular bottom cover 42;
the second motor 31 is fixedly arranged in the cylinder box body 44; one end of the rolling connecting shaft 33 is connected with the second motor 31 through the second coupling 32, and the other end is fixedly connected with the circular bottom cover 43.
The roller mechanism 1 comprises 6 roller groups consisting of a first roller 11 and a second roller 12; 1 group of roller groups are respectively arranged on the 6 support rods 13; a support rod bearing mounting hole 131 is formed in one end of the support rod 13, and a deep groove ball bearing 14 is mounted in the support rod bearing mounting hole 131; a first roller 11 is arranged on the deep groove ball bearing 14 positioned at one side of the supporting rod 13, and a second roller 12 is arranged on the deep groove ball bearing 14 positioned at the other side of the supporting rod 13; the second roller 12 is fixedly connected with the first roller 11 through a screw 15 and a nut 16;
a limiting platform 132 is further arranged on the support rod 13 below the support rod bearing mounting hole 131 to prevent the roller set from contacting the cylinder 42 and the circular bottom cover 43, a switching connecting platform 133 is arranged on the side surface of the other end of the support rod 13, and a T-shaped groove 135 is arranged on the side surface of the support rod 13; a support rod shaft mounting through hole 134 is formed in the switching connecting platform 133, and the switching connecting platform 133 is connected with the connecting rod 25 through the support rod shaft mounting through hole 134;
the first roller 11 is a roller with one surface being a curved surface and the other surface being a plane; a support rod bearing mounting hole 131 and a first ring groove 113 for mounting the deep groove ball bearing 14 are formed in the upper plane side of the first roller 11, a screw mounting through hole 116 is formed in the middle position of the upper plane side of the first roller 11, a shaft surface 111 matched with an inner hole of the deep groove ball bearing 14 is formed in the first roller 11 at the periphery of the screw mounting through hole 116, and a stepped shaft shoulder 112 is formed in the first roller 11 at the bottom of the shaft surface 111; a first concave platform 114 is arranged in the middle of a first roller curved surface 115 on the upper curved surface side of the first roller 11, and the first concave platform 114 is communicated with the center of a screw mounting through hole 116;
the second roller 12 is also a roller with one curved surface and one flat surface; an axial surface mounting concave table 121 matched with the axial surface 111 of the first roller 11 is arranged on the upper plane side of the second roller 12; a nut mounting through hole 126 is formed in the middle of the upper plane side of the second roller 12, a support rod bearing mounting hole 131 and a second annular groove 123 for mounting the deep groove ball bearing 14 are formed in the periphery of the shaft surface mounting concave table 121, and a bearing positioning boss 122 matched with the stepped shaft shoulder 112 on the first roller 11 is formed between the second annular groove 123 and the shaft surface mounting concave table 121; a second concave table 124 is arranged in the middle of a second roller curved surface 125 on the upper curved surface side of the second roller 12, and the second concave table 124, the nut mounting through hole 126, the axial surface mounting concave table 121, the second ring groove 123 and the bearing positioning boss 122 are communicated in center;
a connecting rod connecting platform 251 is integrally installed at two ends of the connecting rod 25, and a connecting rod installing through hole 252 is formed in the side surface of the connecting rod connecting platform 251;
the outer side of the screw nut 24 is provided with connecting blocks 241 which have the same number and correspond to the connecting rods 25, the connecting blocks 241 are provided with connecting block mounting holes 242, and the hollow inner side of the screw nut 24 is provided with screw nut internal threads 243;
the lead screw nut internal thread 243 is meshed with the lead screw 23; the connecting rod connecting platform 251 at one end of the connecting rod 25 is connected with the supporting rod shaft mounting through hole 134 of the switching connecting platform 133 on the supporting rod 13 by a pin through the connecting rod mounting through hole 252, and the connecting rod connecting platform 251 at the other end of the connecting rod 25 is connected with the connecting block mounting hole 242 of the connecting block 241 on the screw nut 24 by a pin through the connecting rod mounting through hole 252;
the lead screw 23 comprises a first shaft section 231, a first thread section 232 and a second shaft section 233 which are integrally formed; a second shaft section 233 of the lead screw 23 is arranged in the first coupling 22; the first thread section 232 of the lead screw 23 is in meshing connection with the lead screw nut internal thread 243 on the lead screw nut 24.
The shoulder 112 of the first roller 11 and the bearing positioning boss 122 of the second roller 12 axially position the deep groove ball bearing 14. The first ring groove 113 and the second ring groove 123 are provided in the support rod 13 and the deep groove ball bearing 14 so as not to influence the movement of the deep groove ball bearing 14. The first concave platform 114 of the first roller 11 and the second concave platform 124 of the second roller 12 are used for installing the screw 15 and the nut 16, and the screw 15 and the nut 16 are ensured to be in the first roller curved surface 115 of the first roller 11 and the second roller curved surface 125 of the second roller 12, so as to avoid influencing the forming quality of the rolling bulging of the metal corrugated pipe.
The curved surface shapes of the first roller curved surface 115 and the second roller curved surface 125 conform to the desired roll-formed corrugated shape. Can be individually replaced in pairs according to different corrugated shapes.
A screw hole 432 is formed in the center of the circular bottom cover 43, and a first shaft section 231 of the screw 23 is mounted in the screw hole 432 of the circular bottom cover 43 through a bearing; 6T-shaped guide rails 431 are uniformly arranged on the circular bottom cover 43, and T-shaped grooves 135 of the support rods 13 are movably arranged on the T-shaped guide rails 431 of the circular bottom cover 43; the roller group is pushed out outwards and folded inwards by the sliding of the support rod 13 on the T-shaped guide rail 431; a rolling connecting shaft fixing block 435 is mounted on the other side of the circular bottom cover 43, a rolling connecting shaft connecting hole 436 and a fastening hole 437 for fixing the circular bottom cover 43 and the rolling connecting shaft 33 are formed in the rolling connecting shaft fixing block 435, and the rolling connecting shaft 33 is fixedly mounted in the rolling connecting shaft connecting hole 436437;
6 bottom cover mounting platforms 433 are uniformly arranged on the circumferential edge of one side of the circular bottom cover 43, which is provided with the T-shaped guide rails 431, and the distribution positions of the bottom cover mounting platforms 433 are the circumferential edges of the circular bottom cover 43 between every 2T-shaped guide rails 431; a bottom cover mounting platform mounting hole 434 is formed in the bottom cover mounting platform 433;
the motor mounting frame 41 comprises a square motor mounting platform 412, and four corners of the square motor mounting platform 412 are connected with a circular mounting ring 417 through mounting frame support rods 416; a coupling mounting through hole 411 is formed in the middle of the square motor mounting platform 412; the square motor mounting platform 412 is further provided with a motor mounting hole 413, and the first motor 11 is fixedly connected with the square motor mounting platform 412 through a screw by using the motor mounting hole 413; 4 cylinder installation platforms 414 are uniformly installed on the circular ring-shaped installation ring 417, 4 circular end cover installation abdicating grooves 415 are uniformly installed on the circular ring-shaped installation ring 417, and the cylinder installation platforms 414 and the circular end cover installation abdicating grooves 415 are distributed at intervals; the cylinder mounting platform 414 is provided with a cylinder mounting hole 418.
4 motor mounting rack mounting platforms 421 are uniformly arranged at one end of the cylinder 42, 6 cylinder mounting platforms 422 are uniformly arranged at the other end of the cylinder 42, and support rod abdicating holes 423 are uniformly arranged between every 2 cylinder mounting platforms 422;
the 4 motor mounting rack mounting platforms 421 of the cylinder 42 are fixedly connected with the 4 cylinder mounting platforms 414 of the motor mounting rack 41 through bolts and nuts respectively; the 6 bottom cover mounting platforms 433 on the circular bottom cover 43 are fixedly connected with the 6 cylinder mounting platforms 422 of the cylinder 42 through bolts and nuts respectively;
a second motor mounting hole 441 and a second coupling mounting hole 442 are formed in the cylindrical box 44; and after the second coupling 32 at the connection end of the second motor 31 passes through the second coupling mounting hole 442, the housing of the second motor 31 is fixedly connected with the second motor mounting hole 441 on the inner wall of the cylindrical box 44 through screws and nuts.
The first motor 21 drives the first coupling 22 to rotate, so as to drive the lead screw 23 to rotate; the screw 23 is engaged with the screw nut 24, and the rotary motion of the screw 23 is converted into the movement of the screw nut 24; the lead screw nut 24 moves to drive the 6 connecting rods 25 to radially extend out, so that the supporting rod 13 is pushed to slide on the T-shaped guide rail 431 of the round bottom cover 43, and the radial pushing-out of the roller group is realized; meanwhile, the second motor 31 drives the second coupler 32 to rotate, so as to drive the rolling connecting shaft 33 to rotate together with the circular bottom cover 43, thereby realizing that the roller mechanism 1 rotates axially and pushes out radially at the same time, and finally realizing the rolling progressive bulging forming of the rolling module on the metal circular tube.
When the device works, the first motor 21 drives the first coupler 22 to rotate, and drives the screw rod 23 to rotate; the screw 23 is engaged with the screw nut 24, and the rotary motion of the screw 23 is converted into the movement of the screw nut 24; the lead screw nut 24 moves on the lead screw 23 to drive the 6 connecting rods 25 to radially extend out, so that the supporting rod 13 is pushed to slide on the T-shaped guide rail 431 of the round bottom cover 43, and the radial pushing-out of the roller group is realized; meanwhile, the second motor 31 drives the second coupler 32 to rotate, so as to drive the rolling connecting shaft 33 to rotate together with the circular bottom cover 43, thereby realizing that the roller mechanism 1 rotates axially and pushes out radially at the same time, and finally realizing the rolling progressive bulging forming of the rolling module on the metal circular tube. And (4) stopping the operation of the second motor 31 after the rolling forming is finished, and reversely operating the first motor 21 to axially contract and withdraw the roller mechanism 1.
According to the rolling module for metal round pipe rolling incremental forming, the rolling wheels are in rolling contact with the pipe, friction is small, multiple pairs of rolling wheel groups simultaneously roll the pipe, the pipe is stressed uniformly, and forming quality is good. And the curved surface shape of the roller is consistent with the waveform of the corrugated pipe required to be rolled, the roller can be independently replaced according to different corrugated shapes, the operation is simple, and the universality is high. The first motor drives the first coupler to rotate to drive the lead screw to rotate, and the rotary motion of the lead screw is converted into the movement of the lead screw nut through the matching of the lead screw and the lead screw nut; the movement of the screw nut drives the connecting rod to extend out in the radial direction, and the supporting rod is pushed to slide on the T-shaped guide rail of the round bottom cover, so that the radial push-out of the roller group is realized; meanwhile, the second motor drives the second coupler to rotate to drive the rolling connecting shaft to rotate together with the round bottom cover, so that the roller mechanism rotates axially and pushes out radially, and finally the rolling module performs rolling incremental forming on the metal round pipe. The shaft shoulder of the first roller and the bearing positioning boss of the second roller axially position the deep groove ball bearing, so that the mechanism has better and more stable running precision; the first ring groove and the second ring groove are arranged on the connecting rod and the deep groove ball bearing in a yielding mode, so that the connecting rod and the deep groove ball bearing are prevented from being mounted and moved, and the mechanism is more effective and reliable. The support rod is provided with a limiting platform, so that the contact and interference of the roller group and the cylinder body can be prevented. To sum up, the embodiment can be ground roll extrusion and form bellows or bulging pipe that the ripple height is high, the ripple width is narrow, and the modularization degree is high, the commonality is strong, the mechanism is reliable and stable.
Claims (4)
1. A rolling module for rolling and incremental forming of a metal round pipe is characterized by comprising a roller mechanism (1), a radial opening transmission mechanism (2), an axial rotation transmission mechanism (3) and a support (4); the roller mechanism (1) comprises a roller group consisting of a first roller (11) and a second roller (12) and a support rod (13); the radial spreading transmission mechanism (2) comprises a first motor (21), a first coupler (22), a lead screw (23), a lead screw nut (24) and a connecting rod (25); the axial rotation transmission mechanism (3) comprises a second motor (31), a second coupler (32) and a rolling connecting shaft (33); the support (4) comprises a motor mounting frame (41), a cylinder body (42), a circular bottom cover (43) and a cylindrical box body (44); the first motor (21), the motor mounting frame (41), the first coupler (22), the lead screw (23), the lead screw nut (24), the circular bottom cover (43), the rolling connecting shaft (33), the second coupler (32) and the second motor (31) are coaxially mounted;
6 supporting rods (13) are uniformly arranged on the circular bottom cover (43), a roller set is arranged at one end of each supporting rod (13), and the roller set is positioned on the outer side of the circular bottom cover (43); one end of the lead screw (23) is connected with the first motor (21) through a first coupler (22), a motor mounting rack (41) is further sleeved on the first coupler (22) between the lead screw (23) and the first motor (21), the first motor (21) is fixedly mounted on the motor mounting rack (41), and the other end of the lead screw (23) is connected with a circular bottom cover (43) through a bearing; the screw nut (24) is meshed with the screw (23); one end of the connecting rod (25) is connected with the other end of the supporting rod (13), and the other end of the connecting rod (25) is connected with the outer wall of the screw nut (24); a cylinder body (42) is arranged between the motor mounting frame (41) and the circular bottom cover (42);
a second motor (31) is fixedly arranged in the cylinder box body (44); one end of the rolling connecting shaft (33) is connected with the second motor (31) through a second coupler (32), and the other end of the rolling connecting shaft is fixedly connected with a circular bottom cover (43).
2. The rolling module for roll incremental forming of a circular metal tube according to claim 1, wherein the roller mechanism (1) comprises 6 roller sets consisting of a first roller (11) and a second roller (12); 1 group of roller groups are respectively arranged on the 6 support rods (13); a supporting rod bearing mounting hole (131) is formed in one end of the supporting rod (13), and a deep groove ball bearing (14) is mounted in the supporting rod bearing mounting hole (131); a first roller (11) is arranged on the deep groove ball bearing (14) positioned at one side of the supporting rod (13), and a second roller (12) is arranged on the deep groove ball bearing (14) positioned at the other side of the supporting rod (13); the second roller (12) is fixedly connected with the first roller (11) through a screw (15) and a nut (16);
a limiting platform (132) is further arranged on the supporting rod (13) below the supporting rod bearing mounting hole (131), a switching connecting platform (133) is arranged on the side surface of the other end of the supporting rod (13), and a T-shaped groove (135) is formed in the side surface of the supporting rod (13); a support rod shaft mounting through hole (134) is formed in the switching connecting platform (133), and the switching connecting platform (133) is connected with the connecting rod (25) through the support rod shaft mounting through hole (134);
the first roller (11) is a roller with one surface being a curved surface and the other surface being a plane; a support rod bearing mounting hole (131) and a first ring groove (113) for mounting the deep groove ball bearing (14) are formed in the upper plane side of the first roller (11), a screw mounting through hole (116) is formed in the middle of the upper plane side of the first roller (11), a shaft surface (111) matched with an inner hole of the deep groove ball bearing (14) is formed in the first roller (11) on the periphery of the screw mounting through hole (116), and a stepped shaft shoulder (112) is formed in the first roller (11) at the bottom of the shaft surface (111); a first concave table (114) is arranged in the middle of a first roller curved surface (115) on the upper curved surface side of the first roller (11), and the first concave table (114) is communicated with the center of a screw mounting through hole (116);
the second roller (12) is also a roller with one surface being a curved surface and the other surface being a plane; an axial surface mounting concave table (121) matched with the axial surface (111) on the first roller (11) is arranged on the upper plane side of the second roller (12); a nut mounting through hole (126) is formed in the middle of the upper plane side of the second roller (12), a supporting rod bearing mounting hole (131) and a second ring groove (123) for mounting the deep groove ball bearing (14) are formed in the periphery of the shaft surface mounting concave table (121), and a bearing positioning boss (122) matched with a stepped shaft shoulder (112) on the first roller (11) is formed between the second ring groove (123) and the shaft surface mounting concave table (121); a second concave table (124) is arranged in the middle of a second roller curved surface (125) on the upper curved surface side of the second roller (12), and the second concave table (124), the nut mounting through hole (126), the shaft surface mounting concave table (121), the second ring groove (123) and the center of the bearing positioning boss (122) are communicated;
the two ends of the connecting rod (25) are integrally provided with connecting rod connecting platforms (251), and the side surfaces of the connecting rod connecting platforms (251) are provided with connecting rod mounting through holes (252);
the outer side of the screw nut (24) is provided with connecting blocks (241) which have the same number as the connecting rods (25) and correspond to the connecting rods in position, a connecting block mounting hole (242) is formed in each connecting block (241), and a screw nut internal thread (243) is formed in the hollow inner side of the screw nut (24);
the screw nut internal thread (243) is meshed with the screw rod (23); the connecting rod connecting platform (251) at one end of the connecting rod (25) is connected with the supporting rod shaft mounting through hole (134) of the switching connecting platform (133) on the supporting rod (13) through the connecting rod mounting through hole (252) by a pin, and the connecting rod connecting platform (251) at the other end of the connecting rod (25) is connected with the connecting block mounting hole (242) of the connecting block (241) on the screw nut (24) through the connecting rod mounting through hole (252) by a pin;
the lead screw (23) comprises a first shaft section (231), a first thread section (232) and a second shaft section (233) which are integrally formed; a second shaft section (233) of the lead screw (23) is arranged in the first coupling (22); the first thread section (232) of the lead screw (23) is meshed and connected with the lead screw nut internal thread (243) on the lead screw nut (24).
3. The rolling module for roll incremental forming of round metal tubes according to claim 2, wherein the curved surface shapes of the first roller curved surface (115) and the second roller curved surface (125) are consistent with the desired corrugated shape.
4. The rolling module for roll incremental forming of a circular metal tube according to claim 1, wherein a screw hole (432) is formed in the center of the circular bottom cover (43), and a first shaft section (231) of the screw (23) is mounted in the screw hole (432) of the circular bottom cover (43) through a bearing; 6T-shaped guide rails (431) are uniformly arranged on the circular bottom cover (43), and T-shaped grooves (135) of the supporting rods (13) are movably arranged on the T-shaped guide rails (431) of the circular bottom cover (43); a rolling connecting shaft fixing block (435) is mounted on the other side of the round bottom cover (43), a rolling connecting shaft connecting hole (436) and a fastening hole (437) for fixing the round bottom cover (43) and the rolling connecting shaft (33) are formed in the rolling connecting shaft fixing block (435), and the rolling connecting shaft (33) is fixedly mounted in the rolling connecting shaft connecting hole (436);
6 bottom cover mounting platforms (433) are uniformly arranged on the circumferential edge of one side of the circular bottom cover (43) provided with the T-shaped guide rails (431), and the distribution positions of the bottom cover mounting platforms (433) are the circumferential edges of the circular bottom cover (43) among every 2T-shaped guide rails (431); a bottom cover mounting platform mounting hole (434) is formed in the bottom cover mounting platform (433);
the motor mounting frame (41) comprises a square motor mounting platform (412), and four corners of the square motor mounting platform (412) are connected with a circular ring-shaped mounting ring (417) through mounting frame supporting rods (416); a coupler mounting through hole (411) is formed in the middle of the square motor mounting platform (412); the square motor mounting platform (412) is further provided with a motor mounting hole (413), and the first motor (11) is fixedly connected with the square motor mounting platform (412) through a screw by utilizing the motor mounting hole (413); 4 cylinder installation platforms (414) are uniformly installed on the circular ring-shaped installation ring (417), 4 circular end cover installation abdicating grooves (415) are uniformly installed on the circular ring-shaped installation ring (417), and the cylinder installation platforms (414) and the circular end cover installation abdicating grooves (415) are distributed at intervals; and a cylinder mounting hole (418) is formed in the cylinder mounting platform (414).
4 motor mounting rack mounting platforms (421) are uniformly arranged at one end of the cylinder (42), 6 cylinder mounting platforms (422) are uniformly arranged at the other end of the cylinder (42), and supporting rod abdicating holes (423) are uniformly arranged between every 2 cylinder mounting platforms (422);
the 4 motor mounting rack mounting platforms (421) of the cylinder (42) are fixedly connected with the 4 cylinder mounting platforms (414) of the motor mounting rack (41) through bolts and nuts respectively; 6 bottom cover mounting platforms (433) on the circular bottom cover (43) are fixedly connected with 6 cylinder mounting platforms (422) of the cylinder (42) through bolts and nuts respectively;
a second motor mounting hole (441) and a second coupling mounting hole (442) are formed in the cylindrical box body (44); and a second coupler (32) at the connecting end of the second motor (31) penetrates through a second coupler mounting hole (442) and then fixedly connects the shell of the second motor (31) with a second motor mounting hole (441) in the inner wall of the cylindrical box body (44) through screws and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193232.3A CN112845834A (en) | 2021-02-20 | 2021-02-20 | Rolling module for metal round pipe rolling incremental forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193232.3A CN112845834A (en) | 2021-02-20 | 2021-02-20 | Rolling module for metal round pipe rolling incremental forming |
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| Publication Number | Publication Date |
|---|---|
| CN112845834A true CN112845834A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110193232.3A Pending CN112845834A (en) | 2021-02-20 | 2021-02-20 | Rolling module for metal round pipe rolling incremental forming |
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| CN (1) | CN112845834A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305232A (en) * | 2021-06-11 | 2021-08-27 | 孙冬 | Quick former of machine tooling |
| CN113333621A (en) * | 2021-06-11 | 2021-09-03 | 孙冬 | Welding seam-free forming method for spherical tank |
| CN115156375A (en) * | 2022-09-07 | 2022-10-11 | 江苏华电管道设备有限公司 | Steel pipe blank stamping device is used in compensator production |
-
2021
- 2021-02-20 CN CN202110193232.3A patent/CN112845834A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113305232A (en) * | 2021-06-11 | 2021-08-27 | 孙冬 | Quick former of machine tooling |
| CN113333621A (en) * | 2021-06-11 | 2021-09-03 | 孙冬 | Welding seam-free forming method for spherical tank |
| CN113305232B (en) * | 2021-06-11 | 2023-01-03 | 洛阳隆胜兴源机械制造有限公司 | Quick former of machine tooling |
| CN113333621B (en) * | 2021-06-11 | 2023-01-20 | 湖南湘东化工机械有限公司 | Welding seam-free forming method for spherical tank |
| CN115156375A (en) * | 2022-09-07 | 2022-10-11 | 江苏华电管道设备有限公司 | Steel pipe blank stamping device is used in compensator production |
| CN115156375B (en) * | 2022-09-07 | 2022-11-18 | 江苏华电管道设备有限公司 | Steel pipe blank stamping device is used in compensator production |
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