CN113042594A - Rolling incremental forming mechanism for metal hollow round pipe - Google Patents
Rolling incremental forming mechanism for metal hollow round pipe Download PDFInfo
- Publication number
- CN113042594A CN113042594A CN202110193231.9A CN202110193231A CN113042594A CN 113042594 A CN113042594 A CN 113042594A CN 202110193231 A CN202110193231 A CN 202110193231A CN 113042594 A CN113042594 A CN 113042594A
- Authority
- CN
- China
- Prior art keywords
- mounting
- roller
- hole
- bottom cover
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 42
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000750 progressive effect Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009785 tube rolling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/12—Bending tubes into wave form
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a rolling incremental forming mechanism for a metal hollow round pipe, which comprises a rolling incremental forming module, a driving transmission module and a shell frame, wherein the rolling incremental forming module is arranged on the shell frame; the rolling incremental forming module comprises a roller set, a supporting rod and a connecting rod; the driving transmission module comprises a motor, a coupler, a lead screw and a lead screw nut; the shell frame comprises a circular bottom cover, a cylinder body, a circular end cover and a motor mounting frame; the motor, the motor mounting frame, the coupler, the lead screw nut and the round bottom cover are coaxially mounted. The invention can roll and form the corrugated pipe with high corrugation height and narrow corrugation width, and has high modularization degree, strong universality and stable and reliable mechanism.
Description
Technical Field
The invention relates to a rolling incremental forming mechanism for a metal hollow 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 metal hollow circular tube rolling incremental forming mechanism which can roll and form the corrugated tube with high corrugation height and narrow corrugation width, has high modularization degree, strong universality and stable and reliable mechanism.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a rolling incremental forming mechanism for a metal hollow round pipe comprises a rolling incremental forming module, a driving transmission module and a shell frame; the rolling incremental forming module comprises a roller set, a supporting rod and a connecting rod; the driving transmission module comprises a motor, a coupler, a lead screw and a lead screw nut; the shell frame comprises a circular bottom cover, a cylinder body, a circular end cover and a motor mounting frame; the motor, the motor mounting frame, the coupler, the lead screw nut and the round bottom cover are coaxially mounted;
the supporting rods are uniformly arranged on the circular bottom cover, and the roller group is arranged at one end of the supporting rods and positioned on the outer side of the circular bottom cover; one end of the lead screw is connected with the motor through a coupler, a motor mounting rack is further sleeved on the coupler between the lead screw and the motor, the motor is fixedly mounted on the motor mounting rack, and the other end of the lead screw is connected with the circular bottom cover; 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; the motor mounting frame is characterized in that a barrel is arranged between the motor mounting frame and the round bottom cover, and a round end cover is arranged between the periphery of the motor and the motor mounting frame.
The roller group consists of a first roller and a second roller; a bearing mounting hole is formed in one end of the supporting rod, and a deep groove ball bearing is mounted in the 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 bearing mounting hole and used for preventing the roller train from contacting the cylinder body, 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 shaft mounting through hole and is connected with the connecting rod through the shaft mounting through hole;
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 platform 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, screw nut internal threads are formed in the hollow inner side of the screw nut, and the screw nut internal threads are meshed with the screw rod; the connecting rod connecting platform at one end of the connecting rod is connected with the shaft mounting through hole of the connecting platform on the supporting rod through a connecting platform mounting through hole by a pin, and the connecting rod connecting platform at the other end of the connecting rod is connected with the connecting block mounting hole of the connecting block on the screw nut through the connecting platform mounting through hole by the pin; through the thread engagement of the screw rod and the screw nut, the motor is transmitted to the rotary motion of the screw rod and is converted into the sliding of the screw nut on the screw rod.
The first roller is a roller with one surface being a curved surface and the other surface being a plane; the upper plane side of the first roller is provided with a bearing mounting hole and a first ring groove for mounting the deep groove ball bearing, the middle position of the upper plane side of the first roller is provided with a screw mounting through hole, the first roller at the periphery of the screw mounting through hole is provided with a shaft surface matched with an inner hole of the deep groove ball bearing, and the first roller at the bottom of the shaft surface is provided with a step-shaped shaft shoulder; 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 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 stepped shaft shoulder on the first roller is formed between the second ring groove and the shaft surface mounting concave table; and 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 center positions of 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.
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.
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 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 motor is fixedly connected with the square motor mounting platform through a nut bolt by utilizing the motor mounting hole; more than 2 cylinder body installation platforms are uniformly arranged on the circular ring-shaped installation ring, more than 2 circular end cover installation abdicating grooves are uniformly arranged on the circular ring-shaped installation ring, and the cylinder body installation platforms and the circular end cover installation abdicating grooves are distributed at intervals; a cylinder mounting hole is formed in the cylinder mounting platform;
the screw rod comprises a first shaft section, a first thread section and a second shaft section which are integrally formed;
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; a second shaft section of a lead screw is arranged in the coupler; 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; more than 2T-shaped guide rails are uniformly distributed and installed on the circular bottom cover, 6 bottom cover installation platforms are uniformly distributed and installed on the circumference of one side of the circular bottom cover, where the T-shaped guide rails are installed, and the distribution positions of the bottom cover installation platforms are the circumference 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; a circular bottom cover fixing block is arranged on the other side of the circular bottom cover, and a circular bottom cover connecting hole and a fastening hole for fixing the circular bottom cover and the circular bottom cover fixing block are formed in the circular bottom cover fixing block; the T-shaped groove of the supporting rod is movably arranged on the T-shaped guide rail of the round bottom cover;
8 combined mounting platforms are uniformly arranged at one end of the cylinder body, 6 cylinder body mounting platforms are uniformly arranged at the other end of the cylinder body, and support rod abdicating holes are uniformly arranged between every 2 cylinder body mounting platforms; 4 end cover connected platforms are uniformly arranged on the circular end cover;
4 of the 8 combined mounting platforms of the cylinder body are fixedly connected with 4 cylinder body mounting platforms of the motor mounting rack at intervals of 1 by bolts and nuts respectively; except 4 combined installation platforms which are connected with 4 barrel installation platforms of the motor installation rack in 8 combined installation platforms of the barrel, the other 4 combined installation platforms are fixedly connected with 4 end cover connection platforms of the circular end cover through bolts and nuts respectively; and 6 bottom cover mounting platforms on the circular bottom cover are fixedly connected with 6 barrel mounting platforms of the barrel respectively through bolts and nuts.
The invention has the following beneficial effects:
(1) the invention provides a metal hollow circular tube rolling incremental forming mechanism based on an incremental forming technology.
(2) 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.
(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 roller train is installed in the one end of bracing piece, and the bracing piece is installed on the T shape guide rail of circular bottom, and the slip through the bracing piece on circular bottom T shape guide rail is outwards released the roller train, and stable in structure is reliable. Meanwhile, one end of the connecting rod is connected with the supporting rod, and the other end of the connecting rod is connected with the screw nut, so that the roller group can realize synchronous pushing and roll forming operation, and the synchronism is good.
(5) 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.
(6) One end of the screw rod is connected with the motor through the coupler, the other end of the screw rod is connected with the round bottom cover through the bearing, the screw rod nut is arranged on the first thread, so that the motion output by the motor is transmitted to the screw rod nut, the screw rod nut transmits the motion to the rolling bulging mechanism, the rolling forming is realized, and the transmission mechanism is stable and reliable.
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 an enlarged schematic view of the cartridge and circular end cap of FIG. 1 with the cartridge and circular end cap removed;
FIG. 3 is an enlarged partial cross-sectional view of the roller set of FIG. 2;
FIG. 4 is an enlarged cross-sectional view of the first roller of FIG. 3;
FIG. 5 is an enlarged cross-sectional view of the second roller of FIG. 3;
FIG. 6 is an enlarged schematic view of the support pole of FIG. 1;
FIG. 7 is a rear view of FIG. 6;
FIG. 8 is an enlarged schematic view of the connecting rod of FIG. 1;
FIG. 9 is an enlarged schematic view of the screw nut of FIG. 1;
FIG. 10 is an enlarged schematic view of the lead screw of FIG. 1;
FIG. 11 is an enlarged schematic view of the circular bottom cover of FIG. 1;
FIG. 12 is an enlarged rear view of FIG. 11;
FIG. 13 is an enlarged schematic view of the motor mount of FIG. 1;
fig. 14 is a schematic view of the cartridge of fig. 1.
Detailed Description
The rolling incremental forming mechanism for the metal hollow round tube of the present embodiment, as shown in fig. 1 to 14, includes a rolling incremental forming module 1, a driving transmission module 2, and a housing 3; the rolling incremental forming module 1 comprises 6 groups of roller groups 11, 6 support rods 12 and 6 connecting rods 13; the driving transmission module 2 comprises a motor 21, a coupler 22, a lead screw 23 and a lead screw nut 24; the shell frame 3 comprises a circular bottom cover 31, a cylinder body 32, a circular end cover 33 and a motor mounting frame 34; the motor 21, the motor mounting frame 34, the coupler 22, the lead screw 23, the lead screw nut 24 and the round bottom cover 31 are coaxially mounted;
the supporting rods 12 are uniformly arranged on the circular bottom cover 31, and the roller groups 11 are arranged at one end of the supporting rods 12 and positioned at the outer side of the circular bottom cover 31; one end of the lead screw 23 is connected with the motor 21 through a coupler 22, a motor mounting rack 34 is further sleeved on the coupler 22 between the lead screw 23 and the motor 21, the motor 21 is fixedly mounted on the motor mounting rack 34, and the other end of the lead screw 23 is connected with the circular bottom cover 31; the lead screw nut 24 is meshed with the lead screw 23; one end of the connecting rod 13 is connected with the other end of the supporting rod 12, and the other end of the connecting rod 13 is connected with the outer wall of the screw nut 24; a cylinder 32 is arranged between the motor mounting frame 34 and the circular bottom cover 31, and a circular end cover 33 is arranged between the periphery of the motor 21 and the motor mounting frame 34.
The roller group 11 consists of a first roller 111 and a second roller 112; a bearing mounting hole 121 is formed in one end of the support rod 12, and a deep groove ball bearing 113 is mounted in the bearing mounting hole 121; a first roller 111 is arranged on the deep groove ball bearing 113 positioned at one side of the supporting rod 12, and a second roller 112 is arranged on the deep groove ball bearing 113 positioned at the other side of the supporting rod 12; the second roller 112 is fixedly connected with the first roller 111 through a screw 114 and a nut 115;
a limiting platform 122 is further arranged on the supporting rod 12 below the bearing mounting hole 121 to prevent the roller set 11 from contacting the cylinder 32 and the circular bottom cover 31, a transfer connecting platform 123 is arranged on the side surface of the other end of the supporting rod 2, and a T-shaped groove 124 is arranged on the side surface of the supporting rod 12; a shaft mounting through hole 1231 is formed in the transfer connecting platform 123, and the transfer connecting platform 123 is connected with the connecting rod 13 through the shaft mounting through hole 1231;
the two ends of the connecting rod 13 are integrally provided with connecting rod connecting platforms 131, and the side surfaces of the connecting rod connecting platforms 131 are provided with connecting platform mounting through holes 132; 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 13, a connecting block mounting hole 242 is formed in each connecting block 241, a screw nut internal thread 243 is formed in the hollow inner side of the screw nut 24, and the screw nut internal thread 243 is meshed with the screw 23; the connecting rod connecting platform 131 at one end of the connecting rod 13 is connected with the shaft mounting through hole 1231 of the connecting platform 123 on the supporting rod 12 by a pin through the connecting platform mounting through hole 132, and the connecting rod connecting platform 131 at the other end of the connecting rod 13 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 platform mounting through hole 132;
the first roller 111 is a roller with one surface being a curved surface and the other surface being a plane; a bearing mounting hole 121 and a first annular groove 1113 for mounting the deep groove ball bearing 113 are formed in the upper plane side of the first roller 111, a screw mounting through hole 1116 is formed in the middle position of the upper plane side of the first roller 111, a shaft surface 1111 matched with an inner hole of the deep groove ball bearing 113 is formed in the first roller 111 at the periphery of the screw mounting through hole 1116, and a stepped shaft shoulder 1112 is formed in the first roller 111 at the bottom of the shaft surface 1111; a first concave table 1114 is arranged in the middle of the first roller curved surface 1115 on the upper curved surface side of the first roller 111, and the first concave table 1114 is communicated with the center position of the screw mounting through hole 1116;
the second roller 112 is also a roller with one curved surface and one flat surface; an axial surface mounting concave platform 1121 used by matching with the axial surface 1111 on the first roller 111 is formed on the upper plane side of the second roller 112; a nut mounting through hole 1126 is formed in the middle of the upper plane side of the second roller 112, a bearing mounting hole 121 and a second annular groove 1123 for mounting the deep groove ball bearing 113 are formed in the periphery of the shaft surface mounting concave platform 1121, and a bearing positioning boss 1122 matched with the stepped shaft shoulder 1112 on the first roller 111 is formed between the second annular groove 1123 and the shaft surface mounting concave platform 1121; a second concave platform 1124 is arranged in the middle of the second roller curved surface 1125 on the upper curved surface side of the second roller 112, and the second concave platform 1124, the nut mounting through hole 1126, the shaft surface mounting concave platform 1121, the second ring groove 1123 and the bearing positioning convex platform 1122 are communicated in center position.
Further, the shoulder 1112 of the first roller 111 and the bearing positioning boss 1122 of the second roller 112 axially position the deep groove ball bearing 113. The first ring groove 1113 and the second ring groove 1123 are provided in the support rod 12 and the deep groove ball bearing 113 so as not to affect the movement of the deep groove ball bearing 113. The first concave base 1114 of the first roller 111 and the second concave base 1124 of the second roller 112 are used for installing the screw 114 and the nut 115, and ensure that the screw 114 and the nut 115 are both in the first roller curved surface 1115 of the first roller 111 and the second roller curved surface 1125 of the second roller 112, so as to avoid affecting the rolling forming quality of the metal corrugated pipe.
The curved shape of the first roller curved surface 1115 and the second roller curved surface 1125 conform to the desired roll-formed corrugation shape. Can be individually replaced in pairs according to different corrugated shapes.
The motor mounting frame 34 comprises a square motor mounting platform 342, and four corners of the square motor mounting platform 342 are connected with a circular ring-shaped mounting ring 347 through supporting rods 346; a coupling mounting through hole 341 is formed in the middle of the square motor mounting platform 342; the square motor mounting platform 342 is further provided with a motor mounting hole 343, and the motor 21 is fixedly connected with the square motor mounting platform 342 through a nut and a bolt by utilizing the motor mounting hole 343; 4 cylinder installation platforms 344 are uniformly installed on the circular installation ring 347, 4 circular end cover installation abdicating grooves 345 are uniformly installed on the circular installation ring 347, and the cylinder installation platforms 344 and the circular end cover installation abdicating grooves 345 are distributed at intervals; a cylinder mounting hole 348 is formed in the cylinder mounting platform 344;
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 screw hole 312 is formed in the center of the circular bottom cover 31, and a first shaft section 231 of the screw 23 is mounted in the screw hole 312 of the circular bottom cover 31 through a bearing; a second shaft section 233 of the lead screw 23 is arranged in the coupling 22; the first thread section 232 of the lead screw 23 is meshed with the lead screw nut internal thread 243 on the lead screw nut 24; the circular bottom cover 31 is also uniformly provided with 6T-shaped guide rails 311, the circumference of one side of the circular bottom cover 31 provided with the T-shaped guide rails 311 is uniformly provided with 6 bottom cover mounting platforms 313, and the distribution positions of the bottom cover mounting platforms 313 are the circumference of the circular bottom cover 31 between every 2T-shaped guide rails 311; a bottom cover mounting platform mounting hole 314 is formed in the bottom cover mounting platform 313; a circular bottom cover fixing block 315 is arranged on the other side of the circular bottom cover 31, and a circular bottom cover connecting hole 316 and a fastening hole 317 for fixing the circular bottom cover 31 and the circular bottom cover fixing block 315 are formed in the circular bottom cover fixing block 315; the T-shaped groove 124 of the support rod 12 is movably arranged on the T-shaped guide rail 311 of the round bottom cover 31; the roller set 11 is pushed out from the outside and folded in from the inside by the sliding of the support rod 12 on the T-shaped guide rail 311.
One end of the cylinder 32 is uniformly provided with 8 combined mounting platforms 321, the other end of the cylinder 32 is uniformly provided with 6 cylinder mounting platforms 322, and support rod abdicating holes 323 are uniformly arranged between every 2 cylinder mounting platforms 322; 4 end cover connected platforms 331 are uniformly arranged on the circular end cover 33;
4 of the 8 combined mounting platforms 321 of the cylinder 32, which are distributed at intervals of 1, are fixedly connected with 4 cylinder mounting platforms 344 of the motor mounting rack 34 through bolts and nuts respectively; except 4 combined installation platforms 321 of the 8 combined installation platforms 321 of the cylinder 32 are connected with 4 cylinder installation platforms 344 of the motor installation frame 34, the other 4 combined installation platforms 321 are fixedly connected with 4 end cover connection platforms 331 of the circular end cover 33 through bolts and nuts respectively; the 6 bottom cover mounting platforms 313 on the circular bottom cover 31 are fixedly connected with the 6 barrel mounting platforms 322 of the barrel 32 through bolts and nuts respectively.
When installing, firstly, the rolling incremental forming module 1 is installed. Firstly, mounting the deep groove ball bearing 113 in the bearing mounting hole 121 of the support rod 12, mounting the axial surface 1111 of the first roller 111 into the inner hole of the deep groove ball bearing 113 from one side of the support rod 12, mounting the second roller 112 on the other side of the support rod 12, and mounting the axial surface 1111 of the first roller 111 into the axial surface mounting concave platform 1121 of the second roller 112; and then the screw 114 passes through the screw mounting through hole 1116 of the first roller 111, the deep groove ball bearing 113 and the nut mounting through hole 1126 of the second roller 112 in sequence, and the nut 115 is screwed at the second concave platform 1124 of the second roller 112 to be fixedly connected with the screw 114. Then, the T-shaped grooves 124 of the 6 support bars 12 are respectively fitted into the 6T-shaped guide rails 311 of the circular bottom cover 31, and the roller groups 11 of the support bars 12 are positioned outside the circular bottom cover 31.
Subsequently, the driving transmission module 2 is installed, the motor 21 is installed on the motor installation platform 342 of the motor installation frame 34, and the motor installation platform is fixedly connected with the motor installation frame 34 through a nut bolt at the motor installation hole 343. One end of the coupling 22 is connected to the output shaft of the motor 21 and the other end of the coupling 12 is connected to the second shaft section 233 of the lead screw 23. Then, the lead screw nut 24 is engaged and mounted on the first threaded section 232 of the lead screw 23, the bearing is mounted in the lead screw mounting hole 312 of the circular bottom cover 31, and the first shaft section 231 of the lead screw 23 is mounted in the bearing in the lead screw mounting hole 312 of the circular bottom cover 31. And then the connecting rod connecting platform 131 at one end of 6 connecting rods 13 and the transfer connecting platform 123 of 6 supporting rods 12 are respectively connected through pins, and the connecting rod connecting platform 131 at the other end of 6 connecting rods 13 is connected with 6 connecting blocks 241 of the screw nut 24 through pins.
Then, the housing frame 3 is mounted; the cylinder 32 is arranged at the outer side of the installation driving transmission module 2, 6 cylinder installation platforms 322 at one end of the cylinder 32 are fixedly connected with 6 bottom cover installation platforms 313 on the circular bottom cover 31 respectively, and 4 of 8 combined installation platforms 321 of the cylinder 32, which are distributed at intervals of 1, are fixedly connected with 4 cylinder installation platforms 344 on the motor installation frame 34; and then 4 end cover connection platforms 331 of the circular end cover 33 are fixedly connected with the other 4 combined installation platforms 321 of the cylinder body 32.
When the motor is operated, the motor 21 is started, and the rotary motion of the motor 21 is transmitted to the lead screw 23 through the coupler 22; the screw 23 and the screw nut 24 are in threaded engagement, so that the rotary motion is converted into the sliding of the screw nut 24 on the screw 23; the screw nut 24 slides on the screw 23 toward the circular bottom cover 31 to drive the connecting rod 13 to open and close radially, so as to drive the supporting rod 12 on the T-shaped guide rail 311 of the circular bottom cover 31, and to push out the roller set 11 at the top end of the supporting rod 12, thereby gradually rolling and forming the corrugated tube. After the forming is finished, the motor rotates reversely, so that the screw nut 24 slides on the screw 23 towards the circular end cover 33, and the connecting rod 13 is driven to be radially folded, so that the supporting rod 12 is driven to be inwardly folded on the T-shaped guide rail 311 of the circular bottom cover 31, and the roller set 11 is inwardly folded.
The embodiment provides a hollow metal pipe rolling incremental forming mechanism, and the gyro wheel contacts with tubular product rolling, and frictional force is little, many carry out roll forming to tubular product simultaneously to the roller train, and the tubular product atress is even, and shaping 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, and the corrugated pipe rolling device is simple to operate and high in universality. Thirdly, 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 running precision of the mechanism is better and more stable; 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 fourth roller train is installed in the one end of bracing piece, and the bracing piece is installed on the T shape guide rail of circular bottom, pushes out the roller train outwards through the slip of bracing piece on circular bottom T shape guide rail, and stable in structure is reliable. Meanwhile, one end of the connecting rod is connected with the supporting rod, and the other end of the connecting rod is connected with the screw nut, so that the roller group can realize synchronous pushing and roll forming operation, and the synchronism is good. And a limiting platform is arranged on the fifth supporting rod, so that the contact and interference of the roller group and the cylinder body can be prevented. In the embodiment, one end of the screw rod is connected with the motor through the coupler, the other end of the screw rod is connected with the round bottom cover through the bearing, and the screw rod nut is installed on the first thread, so that the motion output by the motor is transmitted to the screw rod nut, and then the screw rod nut transmits the motion to the rolling bulging mechanism, so that rolling forming is realized, and the transmission mechanism is stable and reliable. 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 (5)
1. A rolling incremental forming mechanism for a metal hollow round tube is characterized by comprising a rolling incremental forming module (1), a driving transmission module (2) and a shell frame (3); the rolling incremental forming module (1) comprises a roller group (11), a support rod (12) and a connecting rod (13); the driving transmission module (2) comprises a motor (21), a coupler (22), a lead screw (23) and a lead screw nut (24); the shell frame (3) comprises a circular bottom cover (31), a cylinder body (32), a circular end cover (33) and a motor mounting frame (34); the motor (21), the motor mounting frame (34), the coupler (22), the lead screw (23), the lead screw nut (24) and the round bottom cover (31) are coaxially mounted;
the supporting rods (12) are uniformly arranged on the circular bottom cover (31), and the roller groups (11) are arranged at one end of the supporting rods (12) and positioned on the outer side of the circular bottom cover (31); one end of the lead screw (23) is connected with the motor (21) through a coupler (22), a motor mounting rack (34) is further sleeved on the coupler (22) between the lead screw (23) and the motor (21), the motor (21) is fixedly mounted on the motor mounting rack (34), and the other end of the lead screw (23) is connected with the round bottom cover (31); the screw nut (24) is meshed with the screw (23); one end of the connecting rod (13) is connected with the other end of the supporting rod (12), and the other end of the connecting rod (13) is connected with the outer wall of the screw nut (24); install barrel (32) between motor mounting bracket (34) and circular bottom (31), install circular end cover (33) between motor (21) periphery and motor mounting bracket (34).
2. The rolling incremental forming mechanism for the metal hollow round tube according to claim 1, wherein the roller group (11) consists of a first roller (111) and a second roller (112); a bearing mounting hole (121) is formed in one end of the support rod (12), and a deep groove ball bearing (113) is mounted in the bearing mounting hole (121); a first roller (111) is arranged on the deep groove ball bearing (113) positioned at one side of the supporting rod (12), and a second roller (112) is arranged on the deep groove ball bearing (113) positioned at the other side of the supporting rod (12); the second roller (112) is fixedly connected with the first roller (111) through a screw (114) and a nut (115);
a limiting platform (122) is further arranged on the supporting rod (12) below the bearing mounting hole (121), a switching connecting platform (123) is arranged on the side surface of the other end of the supporting rod (2), and a T-shaped groove (124) is formed in the side surface of the supporting rod (12); the transfer connecting platform (123) is provided with a shaft mounting through hole (1231), and the transfer connecting platform (123) is connected with the connecting rod (13) through the shaft mounting through hole (1231);
a connecting rod connecting platform (131) is integrally installed at two ends of the connecting rod (13), and a connecting platform installing through hole (132) is formed in the side surface of the connecting rod connecting platform (131); the outer side of the screw nut (24) is provided with connecting blocks (241) which have the same number as the connecting rods (13) and correspond to the connecting rods in position, a connecting block mounting hole (242) is formed in each connecting block (241), screw nut internal threads (243) are formed in the hollow inner side of the screw nut (24), and the screw nut internal threads (243) are meshed with the screw rod (23); the connecting rod connecting platform (131) at one end of the connecting rod (13) is connected with the shaft mounting through hole (1231) of the upper connecting platform (123) of the supporting rod (12) through the connecting platform mounting through hole (132) by a pin, and the connecting rod connecting platform (131) at the other end of the connecting rod (13) is connected with the connecting block mounting hole (242) of the upper connecting block (241) of the screw nut (24) through the connecting platform mounting through hole (132) by a pin.
3. The rolling incremental forming mechanism of the metal hollow round tube according to claim 2, wherein the first roller (111) is a roller with one curved surface and one flat surface; a bearing mounting hole (121) and a first annular groove (1113) for mounting a deep groove ball bearing (113) are formed in the upper plane side of the first roller (111), a screw mounting through hole (1116) is formed in the middle of the upper plane side of the first roller (111), a shaft surface (1111) matched with an inner hole of the deep groove ball bearing (113) is formed in the first roller (111) on the periphery of the screw mounting through hole (1116), and a stepped shaft shoulder (1112) is formed in the first roller (111) at the bottom of the shaft surface (1111); a first concave table (1114) is arranged in the middle of a first roller curved surface (1115) on the upper curved surface side of the first roller (111), and the first concave table (1114) is communicated with the center of a screw mounting through hole (1116);
the second roller (112) is also a roller with one surface being a curved surface and the other surface being a plane; an axial surface mounting concave platform (1121) matched with the axial surface (1111) on the first roller (111) is formed in the upper plane side of the second roller (112); a nut mounting through hole (1126) is formed in the middle of the upper plane side of the second roller (112), a bearing mounting hole (121) and a second ring groove (1123) for mounting a deep groove ball bearing (113) are formed in the periphery of the shaft surface mounting concave platform (1121), and a bearing positioning boss (1122) matched with a stepped shaft shoulder (1112) on the first roller (111) for use is formed between the second ring groove (1123) and the shaft surface mounting concave platform (1121); and a second concave platform (1124) is arranged in the middle of a second roller curved surface (1125) on the upper curved surface side of the second roller (112), and the center positions of the second concave platform (1124), the nut mounting through hole (1126), the shaft surface mounting concave platform (1121), the second ring groove (1123) and the bearing positioning boss (1122) are communicated.
4. The progressive roll forming mechanism of claim 3, wherein the first roller curve (1115) and the second roller curve (1125) have a curve shape conforming to a desired roll forming corrugation shape.
5. The rolling incremental forming mechanism of the metal hollow round pipe according to claim 1, wherein the motor mounting frame (34) comprises a square motor mounting platform (342), and four corners of the square motor mounting platform (342) are connected with a circular ring-shaped mounting ring (347) through support rods (346); a coupling mounting through hole (341) is formed in the middle of the square motor mounting platform (342); the square motor mounting platform (342) is also provided with a motor mounting hole (343), and the motor (21) is fixedly connected with the square motor mounting platform (342) through a nut bolt by utilizing the motor mounting hole (343); more than 2 cylinder body installation platforms (344) are uniformly installed on the circular ring-shaped installation ring (347), more than 2 circular end cover installation abdicating grooves (345) are uniformly formed in the circular ring-shaped installation ring (347), and the cylinder body installation platforms (344) and the circular end cover installation abdicating grooves (345) are distributed at intervals; a cylinder mounting hole (348) is formed in the cylinder mounting platform (344);
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 screw hole (312) is formed in the center of the circular bottom cover (31), and a first shaft section (231) of a lead screw (23) is mounted in the screw hole (312) of the circular bottom cover (31) through a bearing; a second shaft section (233) of the lead screw (23) is arranged in the 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); more than 2T-shaped guide rails (311) are uniformly arranged on the circular bottom cover (31), 6 bottom cover mounting platforms (313) are uniformly arranged on the circumference of one side of the circular bottom cover (31) on which the T-shaped guide rails (311) are arranged, and the distribution positions of the bottom cover mounting platforms (313) are the circumference of the circular bottom cover (31) between every 2T-shaped guide rails (311); a bottom cover mounting platform mounting hole (314) is formed in the bottom cover mounting platform (313); a round bottom cover fixing block (315) is arranged on the other side of the round bottom cover (31), and a round bottom cover connecting hole (316) and a fastening hole (317) for fixing the round bottom cover (31) and the round bottom cover fixing block (315) are formed in the round bottom cover fixing block (315); the T-shaped groove (124) of the support rod (12) is movably arranged on a T-shaped guide rail (311) of the round bottom cover (31);
one end of each barrel (32) is uniformly provided with 8 combined mounting platforms (321), the other end of each barrel (32) is uniformly provided with 6 barrel mounting platforms (322), and supporting rod abdicating holes (323) are uniformly arranged between every 2 barrel mounting platforms (322); 4 end cover connected platforms (331) are uniformly arranged on the circular end cover (33);
4 of the 8 combined mounting platforms (321) of the cylinder (32) are fixedly connected with 4 cylinder mounting platforms (344) of the motor mounting rack (34) at intervals of 1; except that 4 of the 8 combined mounting platforms (321) of the cylinder (32) are connected with 4 cylinder mounting platforms (344) of the motor mounting frame (34), the other 4 combined mounting platforms (321) are fixedly connected with 4 end cover connecting platforms (331) of the circular end cover (33) through bolts and nuts respectively; 6 bottom cover mounting platforms (313) on the circular bottom cover (31) are fixedly connected with 6 barrel mounting platforms (322) of the barrel (32) through bolts and nuts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193231.9A CN113042594A (en) | 2021-02-20 | 2021-02-20 | Rolling incremental forming mechanism for metal hollow round pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193231.9A CN113042594A (en) | 2021-02-20 | 2021-02-20 | Rolling incremental forming mechanism for metal hollow round pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113042594A true CN113042594A (en) | 2021-06-29 |
Family
ID=76509446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110193231.9A Pending CN113042594A (en) | 2021-02-20 | 2021-02-20 | Rolling incremental forming mechanism for metal hollow round pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113042594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CN202110193231.9A patent/CN113042594A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112845834A (en) | Rolling module for metal round pipe rolling incremental forming | |
| CN113042594A (en) | Rolling incremental forming mechanism for metal hollow round pipe | |
| CN110000271B (en) | Electromagnetic pulse forming device and method for corrugated pipe | |
| CN111729783A (en) | Paint spraying device for outer surface of large-diameter pipe | |
| CN111389988B (en) | Rolling bulging device for metal round tube | |
| CN213317038U (en) | Shaping device for rounding pipe end of metal conduit and inner support assembly thereof | |
| CN102205361A (en) | Straightening roller adjusting device for special-shaped section roller straightening machine | |
| CN215879487U (en) | Rolling and bulging mechanism for metal round pipe | |
| CN215391838U (en) | Rolling wheel transmission mechanism for rolling and bulging | |
| CN110560524A (en) | Multi-radius pipe bender | |
| CN112833161B (en) | Manufacturing method of lower shell of harmonic reducer with composite ball bearing | |
| CN113020362A (en) | Movable metal round pipe rolling incremental forming device | |
| CN215391840U (en) | Bulging roller mechanism for rolling bulging | |
| CN211915120U (en) | Metal pipe flaring-free roll forming device | |
| CN213733514U (en) | Seamless forming drum with variable supporting diameter | |
| CN113020363A (en) | Rolling mechanism for incremental rolling forming | |
| CN215391897U (en) | Movable wheel leg mechanism of driving module for roll forming | |
| CN215391975U (en) | Rolling mechanism of supporting and positioning mechanism for rolling and bulging | |
| CN215897500U (en) | Transmission mechanism of driving module of in-pipe walking device | |
| CN215391976U (en) | Supporting and positioning mechanism for rolling and bulging | |
| CN210741825U (en) | Multifunctional test bed for detecting performance of automobile steering device | |
| CN113084022A (en) | Support positioning module for rolling and bulging of metal round pipe | |
| CN110918729A (en) | Metal pipe flaring-free roll forming device | |
| CN112318910A (en) | Seamless forming drum with variable supporting diameter | |
| CN219324685U (en) | Electric device for expanding end part of pipe fitting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |