CN113695434B - Steel pipe precision forming device - Google Patents
Steel pipe precision forming device Download PDFInfo
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- CN113695434B CN113695434B CN202110962989.4A CN202110962989A CN113695434B CN 113695434 B CN113695434 B CN 113695434B CN 202110962989 A CN202110962989 A CN 202110962989A CN 113695434 B CN113695434 B CN 113695434B
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- steel pipe
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
- B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a steel pipe precision forming device, which belongs to the technical field of steel pipe forming and comprises a frame, an upper roller assembly, a lower roller assembly and a side roller assembly; the upper roller assembly is rotationally arranged on the frame by taking the first path as an axis, the first path is vertical to the conveying direction and vertical to the up-down direction, and is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted with two side edges of an upper opening of the tube blank; the lower roller assembly is arranged on the frame by taking the second path as an axle center, and is also in sliding fit with the frame along the up-down direction; the side roller assembly is provided with two side rollers, the two side rollers are both rotationally arranged on the frame by taking the third path as an axis, and the two side rollers are symmetrically arranged by taking the conveying path as a symmetrical axis. The invention provides a steel pipe finish forming device, which aims to realize that the distance between each part can be adjusted, thereby meeting the requirements of producing steel pipes with different sizes and reducing the production cost.
Description
Technical Field
The invention belongs to the technical field of steel tube forming, and particularly relates to a steel tube finish forming device.
Background
The steel pipe production process clamps the two sides of the steel belt through the roll shafts, the steel belt sequentially passes through a plurality of groups of roll shafts with different shapes and angles in the conveying process, so that the flat steel belt is gradually bent until an annular steel pipe blank is formed, and finally, the gaps of the steel pipe blank are fixedly connected through high-frequency welding, so that a finished steel pipe is formed. In the finish forming stage, the steel pipe blank needs to be precisely formed so as to ensure that the finished product meets the standard. However, when different steel pipe products are produced, the spacing between each component in the finish forming stage needs to be adjusted so as to ensure the size requirement of the finished steel pipe, most of the existing equipment cannot adjust the size between the components, and the cost of integrally replacing the components is high.
Disclosure of Invention
The invention aims to provide a steel pipe finish forming device, which aims to realize that the distance between each part can be adjusted, meet the requirements of producing steel pipes with different sizes and reduce the production cost.
In order to achieve the above purpose, the invention adopts the following technical scheme: provided is a steel pipe finish forming device, comprising:
a frame;
the upper roller assembly is arranged on the frame by taking a first path as a rotation axis, the first path is perpendicular to the conveying direction and also perpendicular to the up-down direction, and is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted with two side edges of an upper opening of the tube blank;
the lower roller assembly is arranged on the frame by taking a second path as a rotation axis and is positioned below the upper roller assembly, the second path is parallel to the first path, the lower roller assembly is also in sliding fit with the frame along the up-down direction, and the lower roller assembly is used for providing supporting force for the bottom of the tube blank; and
the side roller assembly is provided with two side rollers, the two side rollers are respectively arranged on the frame in a rotating mode by taking a third path as an axis, the third path is parallel to the up-down direction, the two side rollers are symmetrically arranged by taking a conveying path as a symmetry axis, the two side rollers are in sliding fit with the frame in the direction parallel to the first path, and the two side rollers are used for applying extrusion force to two side surfaces of the tube blank.
In one possible implementation, the lower roller assembly includes:
the two connecting seats are arranged oppositely and are respectively arranged on the rack in a sliding manner along the up-down direction;
the lower roll shaft is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively and rotatably connected with the two connecting seats; and
and the two first drivers are arranged on the frame and are respectively connected with the two connecting seats and used for respectively driving the two connecting seats to move up and down.
In one possible implementation, the side roller assembly further includes:
the two opposite installation frames are respectively arranged on the frame in a sliding manner along a first path, and the two side rollers are respectively connected with the two installation frames in a rotating manner; and
and the two fourth drivers are respectively arranged on the frame, are respectively connected with the two mounting frames and are used for respectively driving the two mounting frames to move along the direction parallel to the first path.
In one possible implementation manner, the steel pipe forming device further comprises an oblique inserting assembly, the oblique inserting assembly comprises two oblique inserting rollers, the two oblique inserting rollers are respectively and rotatably arranged on the frame, the two oblique inserting rollers are symmetrically arranged on the frame along the conveying direction in a mirror image mode, the two oblique inserting rollers are arranged in an included angle mode, and the two oblique inserting rollers are used for respectively providing support for two opposite sides of the outer peripheral surface of the pipe blank.
In one possible implementation manner, the rack comprises a workbench and two supporting frames oppositely arranged on the workbench, the two supporting frames are arranged in a sliding manner along a direction perpendicular to the conveying direction, and the two oblique inserting rollers are respectively and rotatably arranged on the two supporting frames.
In one possible implementation manner, the supporting frame comprises a supporting seat and a mounting seat, wherein the supporting seat is arranged on the frame in a sliding manner along the direction perpendicular to the conveying direction and is used for adjusting the opening and closing distance between the two supporting seats; the mounting seat is arranged on the supporting seat in a sliding manner along the up-down direction and is used for adjusting the height of the mounting seat, and the oblique inserting roller is rotationally connected with the mounting seat.
In one possible implementation manner, the oblique insertion assembly further comprises a second driver arranged on the supporting seat, and the second driver is connected with the mounting seat and used for driving the mounting seat to slide along the up-down direction.
In one possible implementation, the upper roller assembly includes:
the upper roll shaft is rotationally arranged on the frame by taking the first path as an axis, external threads with opposite rotation directions are respectively arranged at two ends of the upper roll shaft, and the two positioning mechanisms are respectively connected with two ends of the upper roll shaft in a threaded manner;
the two positioning mechanisms are sleeved at two ends of the upper roll shaft and are respectively connected with two ends of the upper roll shaft in a threaded manner, and the two positioning mechanisms are used for being abutted with the opening of the tube blank;
the two guide mechanisms are respectively connected to the frame and are used for limiting the positioning mechanism to move in the axial direction of the upper roller; and
and the third driver is connected with the end part of the upper roll shaft and is used for driving the upper roll shaft to rotate by taking the first path as the axis.
In one possible implementation manner, the guiding mechanism comprises a positioning base connected with the shell of the third driver, the positioning base is provided with a guiding piece extending along the axial direction of the upper roller shaft, and the positioning mechanism is provided with a guiding groove matched with the guiding piece, and the guiding piece is in sliding fit with the guiding groove.
In one possible implementation manner, the positioning mechanism comprises a limiting cylinder which is rotationally sleeved outside the upper roller shaft, an annular yielding groove is formed in the outer peripheral surface of the limiting cylinder, the yielding groove divides the limiting cylinder into a positioning cylinder and positioning sheets, the positioning sheets in the two positioning mechanisms are located between the positioning cylinders in the two positioning mechanisms, the guide groove is formed in the outer peripheral surface of the positioning cylinder, and the positioning sheets are used for being abutted to two side edges of the opening of the tube blank.
The steel pipe finish forming device provided by the invention has the beneficial effects that: compared with the prior art, the positioning mechanism of the upper roller assembly of the steel pipe precision forming device can adjust the opening and closing distance according to the opening size required by the pipe blank, and the opening of the pipe blank is gradually gathered in the forming process until the pipe blank is abutted with the positioning mechanism, so that the opening size of the formed pipe blank can meet the requirement. The bottom of tube blank can be supported to the lower roll subassembly, and the lower roll subassembly can reciprocate according to the size of processing tube blank simultaneously to form the not unidimensional tube blank of upper roll subassembly cooperation processing. The two side rollers respectively clamp the two sides of the tube blank to enable the two sides of the tube blank to form arc surfaces, and the distance between the two side rollers is adjusted according to the size requirement of the tube blank to be processed so as to be suitable for different tube blank size requirements. The device can adjust the interval between the upper roller assembly and the lower roller assembly according to production requirements, and can also adjust the interval between the two side rollers, so that the outer peripheral surface of the tube blank forms a smooth and round arc-shaped surface, and the positioning mechanism can axially slide along the positioning mechanism according to the opening requirements of the tube blank, thereby being applicable to different openings. The upper roller assembly, the lower roller assembly and the two side rollers can rotate, so that friction force applied to the tube blank in the conveying process is reduced, and abrasion to the tube blank is avoided. The invention can produce tube blanks with different sizes, does not need to replace each part, reduces the production cost and can meet various production requirements.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a steel pipe finish forming device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an oblique insertion assembly according to an embodiment of the present invention;
FIG. 3 is a schematic front view of an oblique insertion assembly according to an embodiment of the present invention;
fig. 4 is a partial enlarged view of a portion a in fig. 2;
FIG. 5 is a schematic view of the structure of the upper roll assembly and the tube blank employed in the present invention;
fig. 6 is a front view of an upper roller assembly employed in the present invention.
In the figure: 1. a third driver; 2. a positioning mechanism; 201. a positioning cylinder; 2011. a guide groove; 202. a relief groove; 203. a positioning sheet; 3. positioning a base; 301. a guide piece; 4. an upper roll shaft; 5. a mounting frame; 6. a side roller; 8. a fourth driver; 9. a lower roll shaft; 901. a roller sleeve; 10. a connecting seat; 11. a first driver; 12. oblique inserting rollers; 13. a support frame; 1301. a second mounting member; 1301-1, mounting blocks; 1301-2, a fixed block; 1302. a first mounting member; 1303. a support base; 1304. an arc chute; 1305. a strip-shaped opening; 1306. a slide bar; 14. a work table; 15. a second driver; 1501. a driving motor; 1502. a worm; 1503. a limit seat; 16. a sixth driver; 17. a guide roller; 18. a frame; 19. a tube blank.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 5, a steel pipe finish forming apparatus according to the present invention will be described. The steel pipe finish forming device comprises a frame 18, an upper roller assembly, a lower roller assembly and a side roller assembly; the upper roller assembly is arranged on the frame 18 by taking a first path as a rotation axis, the first path is perpendicular to the conveying direction and also perpendicular to the up-down direction, the upper roller assembly is provided with a positioning mechanism 2 which moves along the first path, and the positioning mechanism 2 is abutted with two side edges of an upper opening of the tube blank 19; the lower roller assembly is arranged on the frame 18 by taking the second path as an axis and is positioned below the upper roller assembly, the second path is parallel to the first path, the lower roller assembly is also in sliding fit with the frame 18 along the up-down direction, and the lower roller assembly is used for providing supporting force for the bottom of the tube blank 19; the side roller assembly is provided with two side rollers 6, the two side rollers 6 are respectively arranged on the frame 18 by taking a third path as a rotation axis, the third path is parallel to the up-down direction, the two side rollers 6 are symmetrically arranged by taking a conveying path as a symmetry axis, the two side rollers 6 are also in sliding fit with the frame 18 in the direction parallel to the first path, and the two side rollers 6 are used for applying extrusion force to two side surfaces of the tube blank 19.
Compared with the prior art, the positioning mechanism 2 of the upper roller assembly of the steel pipe finish forming device can adjust the opening-closing distance according to the opening size required by the pipe blank 19, and the opening of the pipe blank 19 is gradually gathered in the forming process until the pipe blank 19 is abutted with the positioning mechanism 2, so that the opening size of the formed pipe blank 19 meets the requirement. The lower roll assembly can support the bottom of the pipe blank 19, and meanwhile, the lower roll assembly can move up and down according to the size of the processed pipe blank 19, so that the lower roll assembly and the upper roll assembly are matched for processing to form pipe blanks 19 with different sizes. The two side rollers 6 respectively clamp the two sides of the tube blank 19 so that the two sides of the tube blank 19 form arc surfaces, and the distance between the two side rollers 6 is adjusted according to the size requirement of the tube blank 19 to be processed so as to be suitable for different size requirements of the tube blank 19. The device can adjust the interval between the upper roller assembly and the lower roller assembly according to production requirements, and can also adjust the interval between the two side rollers 6, so that the outer peripheral surface of the tube blank 19 forms a smooth and round arc surface, and the positioning mechanism 2 can axially slide along the positioning mechanism according to the opening requirements of the tube blank 19, thereby being applicable to different openings. The upper roller assembly, the lower roller assembly and the two side rollers 6 can rotate, so that friction force applied to the tube blank 19 in the conveying process is reduced, and abrasion of the tube blank 19 is avoided. The invention can produce tube blanks 19 with different sizes without replacing each part, reduces the production cost and can meet various production requirements.
It should be noted that, the "rotation axis" refers to a rotation axis of the roller shaft, and does not refer to that the entire assembly is rotatably connected to the frame 18.
Specifically, the upper roller assembly, the lower roller assembly, and the side roller assemblies are located in the same plane, which is perpendicular to the conveying path.
Optionally, the upper roller assembly is slidably coupled to the frame 18 and is capable of sliding in an up-down direction to adjust the spacing between the upper roller assembly and the lower roller assembly.
In some embodiments, referring to fig. 1, the lower roller assembly includes two oppositely disposed connecting seats 10, a lower roller shaft 9 and two first drivers 11, where the two connecting seats 10 are respectively slidably disposed on the frame 18 along the up-down direction; the lower roll shaft 9 is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively connected with two connecting seats 10 in a rotating way; the two first drivers 11 are all arranged on the frame 18, and the two first drivers 11 are respectively connected with the two connecting seats 10 and are used for respectively driving the connecting seats 10 to move up and down.
In this embodiment, the first driver 11 can drive the lower roll shaft 9 to move up and down, so that the connecting seat 10 slides up and down along the frame 18, and the distance between the lower roll shaft 9 and the upper roll assembly is adjusted to be suitable for tube blanks 19 with different sizes.
Alternatively, the first driver 11 is a cylinder, or a motor and a screw, and a nut on the screw is connected with the lower roll shaft 9.
Optionally, the lower roll shaft 9 is sleeved with a roll sleeve 901, and the roll sleeve 901 is provided with an arc-shaped forming surface for forming an arc-shaped surface at the bottom of the tube blank 19.
In some embodiments, referring to fig. 1, the side roller assembly further includes two oppositely disposed mounting frames 5 and two fourth drivers 8, the two mounting frames 5 are slidably disposed on the frame 18 along a path parallel to the first path, and the two side rollers 6 are rotatably connected to the two mounting frames 5; the two fourth drivers 8 are respectively arranged on the frame 18, and the two fourth drivers 8 are respectively connected with the two mounting frames 5 and are used for respectively driving the two mounting frames 5 to move along the direction parallel to the first path.
The two fourth drivers 8 respectively drive the two mounting frames 5 to move along the direction perpendicular to the conveying direction, so that the distance between the two mounting frames 5 is adjusted, and the two side rollers 6, the upper roller assembly and the lower roller assembly are matched to apply extrusion force to the outer peripheral surface of the tube blank 19, so that the tube blank 19 is formed into an arc-shaped peripheral surface. The movement of the mounting frame 5 is controlled through the fourth driver 8, manual adjustment is not needed, the operation is simplified, and the working efficiency is improved.
Alternatively, the fourth driver 8 may be a cylinder.
Optionally, the fourth driver 8 includes a motor and a screw, the screw of the screw is connected with an output end of the motor, a nut is connected with the mounting frame 5, and the motor drives the screw to rotate, so that the nut moves along the screw to move the adjusting mounting frame 5.
Alternatively, the mounting frame 5 has a mounting opening to which the side roller 6 can be mounted, and both ends of the side roller 6 are rotatably connected with the mounting opening, respectively.
In some embodiments, referring to fig. 1 to 4, the steel pipe forming apparatus further includes an oblique insertion assembly, the oblique insertion assembly includes two oblique insertion rollers 12, the two oblique insertion rollers 12 are respectively rotatably disposed on the frame 18, the two oblique insertion rollers 12 are disposed on the frame 18 in a mirror symmetry manner along the conveying direction, the two oblique insertion rollers 12 are disposed at an included angle, and the two oblique insertion rollers 12 are respectively used for providing support for two opposite sides of the outer peripheral surface of the pipe blank 19.
The two oblique inserting rollers 12 provide supporting force for the outer peripheral surface of the tube blank 19 at the contact blind points of the die and the tube blank 19, and the defects that the support blind point area of the tube blank 19 is concave or convex due to extrusion molding in the molding process are avoided. The two oblique inserting rollers 12 respectively provide support for the two opposite sides of the tube blank 19, so that the surface stress of the tube blank 19 is uniform, and the ellipticity of the formed tube blank 19 is prevented from reaching the standard. The oblique insert roller 12 can rotate along with the conveying of the tube blank 19 so as to reduce friction force with the outer surface of the tube blank 19 and avoid abrasion of the tube blank 19. The device can ensure that the surface of the tube blank 19 is smooth and round after being molded, and improves the product quality.
Optionally, the steel pipe finish forming device further comprises a guide assembly, the guide assembly comprises two guide rollers 17 rotatably arranged on the frame 18, the two guide rollers 17 are respectively arranged on the upstream of the side roller assembly and the downstream of the oblique insertion assembly along the conveying direction, and the two guide rollers 17 are symmetrically arranged along the conveying direction.
Alternatively, the two guide rollers 17 are parallel to each other with the axis perpendicular to the conveying direction.
In some embodiments, referring to fig. 1 to 4, the frame 18 includes a table 14 and two supporting frames 13 disposed opposite to the table 14, the two supporting frames 13 are slidably disposed along a direction perpendicular to the conveying direction, and the two oblique rollers 12 are respectively rotatably disposed on the two supporting frames 13.
In this embodiment, the two supporting frames 13 slide along the direction perpendicular to the conveying direction, so that the distance between the two supporting frames 13 can be adjusted, and thus, supporting force can be provided for the tube blanks 19 with different diameters, when the diameter of the tube blank 19 to be processed is changed, the whole device is not required to be replaced, and the production cost is saved.
Optionally, a fifth driver is disposed on the workbench 14, and the fifth driver is connected to the support frame 13 and can drive the support frame 13 to slide.
Alternatively, the fifth driver may be a cylinder.
In some embodiments, referring to fig. 1 to 4, the supporting frame 13 includes a supporting base 1303 and a mounting base, the supporting base 1303 is slidably disposed on the frame 18 along a direction perpendicular to the conveying direction, for adjusting an opening and closing distance between the two supporting bases 1303; the mount pad is located supporting seat 1303 along upper and lower direction slip for adjust the height of mount pad, insert roller 12 and mount pad rotation to one side and be connected.
The supporting seat 1303 can slide along the direction perpendicular to the conveying direction to adjust the distance of opening and closing between two supporting seats 1303, the height of mount pad can be adjusted, when the size of tube blank 19 changes, through adjusting supporting seat 1303 and mount pad respectively, make oblique insert roller 12 can provide holding power to tube blank 19, has enlarged accommodation, is applicable to tube blank 19 of more sizes. The oblique insert roller 12 is rotationally connected with the mounting seat, in the tube blank 19 forming process, the formed tube blank 19 is continuously conveyed to the next station, meanwhile, the tube blank 19 of the previous station is conveyed, friction force between the oblique insert roller 12 and the tube blank 19 can be reduced through rotational connection, and abrasion of the outer surface of the tube blank 19 is avoided.
Optionally, corresponding mounting holes are respectively formed on the mounting seat and the supporting seat 1303, and after the mounting seat is adjusted to a designated position, the corresponding mounting holes can be connected and fixed through the threaded connecting piece, so that the mounting seat is positioned.
In some embodiments, referring to fig. 1 to 4, the oblique insertion assembly further includes a second driver 15 disposed on the supporting seat 1303, where the second driver 15 is connected to the mounting seat and is used for driving the mounting seat to slide in an up-down direction.
The second driver 15 drives the mounting seat to slide, so that the mounting seat can be automatically adjusted without manual adjustment, the adjusting efficiency is improved, the adjusting precision can be increased, and the labor intensity of workers is reduced.
In some embodiments, referring to fig. 2 to 3, the second driver 15 includes a driving motor 1501, a turbine, a worm 1502 and a limiting seat 1503, wherein the driving motor 1501 is disposed on the supporting seat 1303; the turbine is connected with the output end of the driving motor 1501; the worm 1502 is engaged with the worm gear; the limiting seat 1503 is fixed on the mounting seat, and a spiral groove matched with the spiral tooth of the worm 1502 is formed on the inner annular surface of the limiting seat 1503.
The driving end of the driving motor 1501 rotates the worm gear, the worm gear 1502 engaged with the worm gear rotates and moves the limit seat 1503 in the up-down direction, thereby driving the installation seat to move. The worm 1502 is connected with the mounting seat through the limit seat 1503, so that the mounting seat does not rotate along with the worm 1502 in the moving process, and the stability of the mounting seat is ensured.
In some embodiments, referring to fig. 1 to 4, the mounting base includes a first mounting member 1302 slidably coupled to the support base 1303 and a second mounting member 1301 rotatably coupled to the first mounting member 1302, the second mounting member 1301 being capable of rotating about an axis parallel to the conveying path, and the oblique roller 12 being rotatably coupled to the second mounting member 1301.
The second mounting part 1301 can rotate in the plane perpendicular to the conveying plane, when steel pipes with different sizes are produced, different dies are usually adopted, the contact blind points of the dies and the conveying plane can be changed, the rotating second mounting part 1301 can enable the oblique inserting roller 12 to be suitable for different blind point areas, and the application range of the device is enlarged.
In some embodiments, referring to fig. 2 to 4, an arc chute 1304 is formed on the first mounting member 1302, and an arc surface adapted to the arc chute 1304 is formed on the second mounting member 1301 to guide the rotation of the second mounting member 1301.
The cambered surface of the second mounting part 1301 can slide in the cambered chute 1304, so that the second mounting part 1301 can rotate around the axis parallel to the conveying path, and meanwhile, the rotation of the second mounting part 1301 can be guided, and the second mounting part 1301 is prevented from deviating from the preset path. This simple structure has simplified connection structure and adapting unit, and it is convenient to adjust, has improved angle regulation's efficiency.
In some embodiments, referring to fig. 1 to 4, the arc-shaped chute 1304 is provided with a strip-shaped opening 1305 along the rotation direction of the second mounting member 1301, a sliding strip 1306 capable of being slidably inserted into the strip-shaped opening 1305 is provided on the second mounting member 1301, and a sixth driver 16 is further provided on the supporting seat 1303, and a driving end of the sixth driver 16 is connected to the sliding strip 1306 for driving the sliding strip 1306 to slide along the strip-shaped opening 1305.
The slide bar 1306 can slide along the arc-shaped chute 1304 in the strip opening 1305, and the sixth driver 16 drives the slide bar 1306 to slide, so that the second mounting pieces 1301 rotate around the axis parallel to the conveying path, and the angle between the two second mounting pieces 1301 is adjusted, so that the two oblique inserting rollers 12 can provide support for steel pipes with different sizes.
Optionally, the sixth driver 16 is a cylinder, and the driving end of the cylinder is hinged to the sliding strip 1306, so that the sliding strip 1306 can slide along the strip-shaped opening 1305 when the driving end stretches and contracts.
In some embodiments, not shown, the slide 1306 is provided with a latch, and the drive end of the sixth driver 16 is connected to a gear capable of engaging the latch.
The sixth driver 16 drives the gears to rotate so that the slide 1306 engaged therewith rotates to effect sliding movement of the slide 1306 along the arcuate chute 1304. The slide bar 1306 is driven to rotate in a gear meshing mode, so that the position of the slide bar 1306 can be accurately adjusted, the slide bar 1306 is positioned at a designated position and is more stable and not easy to move, and the influence of movement of the slide bar 1306 on the support of the oblique insert roller 12 on the tube blank 19 during operation is avoided.
In some embodiments, referring to fig. 2 to 4, the second mounting member 1301 includes a fixing block 1301-2 and two mounting blocks 1301-1 disposed on the fixing block 1301-2, wherein a mounting space for mounting the oblique insertion roller 12 is formed between the two mounting blocks 1301-1, the fixing block 1301-2 is connected with the supporting seat 1303, and two ends of the oblique insertion roller 12 are respectively connected with the two mounting blocks 1301-1 in a rotating manner.
The oblique inserting roller 12 is arranged in the installation space, the fixed block 1301-2 is not affected when the oblique inserting roller 12 rotates, and the oblique inserting roller 12 can also slide along with the fixed block 1301-2 when the fixed block 1301-2 slides along the chute, so that the angle of the oblique inserting roller 12 is adjusted. The device adopts a simple structure to realize the adjustment of the angle of the oblique inserting roller 12, and meanwhile, the connection relation between the oblique inserting roller and the mounting block 1301-1 is not affected.
Optionally, bearings are respectively arranged at two ends of the oblique inserting roller 12, and the mounting blocks 1301-1 are connected with the bearings through bearing blocks, so that the mounting blocks 1301-1 are not influenced while the oblique inserting roller 12 rotates.
In some embodiments, referring to fig. 1 and 6, the upper roller assembly includes an upper roller shaft 4, two positioning mechanisms 2, two guiding mechanisms and a third driver 1, the upper roller shaft 4 is rotatably disposed on a frame 18 with a first path as an axis, two ends of the upper roller shaft 4 are respectively provided with external threads with opposite rotation directions, and the two positioning mechanisms 2 are respectively connected to two ends of the upper roller shaft 4 in a threaded manner for inserting and positioning with an opening of a tube blank 19; the two guide mechanisms are respectively connected to the frame 18 and are used for limiting the movement of the positioning mechanism 2 in the axial direction of the upper roll shaft 4; the third driver 1 is connected with an end portion of the upper roller shaft 4, and the third driver 1 is used for driving the upper roller shaft 4 to rotate around the first path as an axis.
The two sides of the opening of the tube blank 19 are respectively abutted with the two positioning mechanisms 2 so as to ensure the opening size of the formed tube blank 19. The guiding mechanism guides the positioning mechanism 2 from rotating when the positioning mechanism 2 moves along the first path. This structure is according to the production requirement through two third drivers 1 drive up roll axle 4 rotation, makes two positioning mechanism 2 along the radial opposite direction of first route with up roll axle 4 threaded connection remove to adjust the interval between two positioning mechanism 2, with the opening size that is applicable to different pipe, need not to change the roller subassembly, practiced thrift operating time, reduced manufacturing cost.
Specifically, the rotational speeds and the steering directions of the two third drivers 1 are the same.
Specifically, the positioning mechanism 2 is a bearing member.
Optionally, two third drivers 1 are respectively connected with two ends of the upper roll shaft 4.
In some embodiments, referring to fig. 1 and 6, the guiding mechanism includes a positioning base 3 connected to a housing of the third driver 1, the guiding mechanism is connected to the frame 18 through the third driver 1, the positioning base 3 has a guiding plate 301 extending along an axial direction of the upper roller shaft 4, a guiding slot 2011 adapted to the guiding plate 301 is provided on the positioning mechanism 2, and the guiding plate 301 is slidably matched with the guiding slot 2011.
When the positioning mechanism 2 moves along the axial direction of the upper roller shaft 4, the guide groove 2011 moves along the guide piece 301, the guide groove 2011 is spliced with the guide piece 301 to guide the movement of the positioning mechanism 2, so that the positioning mechanism 2 is prevented from shifting in the moving process, and the distance between the two positioning mechanisms 2 can be stably adjusted.
In some embodiments, referring to fig. 1 and 5, the positioning mechanism 2 includes a limiting cylinder rotatably sleeved outside the upper roller shaft 4, an annular yielding groove 202 is formed on the outer circumferential surface of the limiting cylinder, the yielding groove 202 divides the limiting cylinder into a positioning cylinder 201 and positioning pieces 203, the positioning pieces 203 in the two positioning mechanisms 2 are located between the positioning cylinders 201 in the two positioning mechanisms 2, a guiding groove 2011 is formed on the outer circumferential surface of the positioning cylinder 201, and the positioning pieces 203 are used for abutting against two side edges of the opening of the tube blank 19.
The opening of the tube blank 19 gradually gathers towards the positioning sheets 203 in the forming process until the two ends of the opening of the tube blank 19 are respectively abutted with the two positioning sheets 203, so that the opening size of the tube blank 19 is ensured, and the tube blank 19 can smoothly enter the next station for further processing. The relief groove 202 can relief the opening of the tube blank 19, and make it abut against the positioning piece 203 for positioning.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. Steel pipe finish forming device, its characterized in that includes:
a frame;
the upper roller assembly is arranged on the frame by taking a first path as a rotation axis, the first path is perpendicular to the conveying direction and also perpendicular to the up-down direction, and is provided with a positioning mechanism moving along the first path, and the positioning mechanism is abutted with two side edges of an upper opening of the tube blank;
the lower roller assembly is arranged on the frame by taking a second path as a rotation axis and is positioned below the upper roller assembly, the second path is parallel to the first path, the lower roller assembly is also in sliding fit with the frame along the up-down direction, and the lower roller assembly is used for providing supporting force for the bottom of the tube blank; and
the side roller assembly is provided with two side rollers, the two side rollers are both rotationally arranged on the frame by taking a third path as an axis, the third path is parallel to the up-down direction, the two side rollers are symmetrically arranged by taking a conveying path as a symmetry axis, the two side rollers are also in sliding fit with the frame in the direction parallel to the first path, and the two side rollers are used for applying extrusion force to two side surfaces of the tube blank;
the steel pipe finish forming device further comprises an oblique insertion assembly, the oblique insertion assembly comprises two oblique insertion rollers, the two oblique insertion rollers are respectively and rotatably arranged on the frame, the two oblique insertion rollers are symmetrically arranged on the frame in a mirror image mode along the conveying direction, the two oblique insertion rollers are arranged in an included angle mode, and the two oblique insertion rollers are used for respectively supporting two opposite sides of the outer peripheral surface of the pipe blank;
the steel pipe finish forming device further comprises a guide assembly, the guide assembly comprises two guide rollers which are rotationally arranged on the frame, the two guide rollers are respectively arranged on the upstream of the side roller assembly and the downstream of the oblique insertion assembly along the conveying direction, and the two guide rollers are symmetrically arranged along the conveying direction.
2. The steel pipe finishing apparatus of claim 1, wherein the lower roll assembly comprises:
the two connecting seats are arranged oppositely and are respectively arranged on the rack in a sliding manner along the up-down direction;
the lower roll shaft is arranged by taking the second path as an axis, and two ends of the lower roll shaft are respectively and rotatably connected with the two connecting seats; and
and the two first drivers are arranged on the frame and are respectively connected with the two connecting seats and used for respectively driving the two connecting seats to move up and down.
3. The steel pipe finishing apparatus of claim 1, wherein the side roller assembly further comprises:
the two opposite installation frames are respectively arranged on the frame in a sliding manner along a first path, and the two side rollers are respectively connected with the two installation frames in a rotating manner; and
and the two fourth drivers are respectively arranged on the frame, are respectively connected with the two mounting frames and are used for respectively driving the two mounting frames to move along the direction parallel to the first path.
4. The steel pipe finish forming device according to claim 1, wherein the frame comprises a workbench and two supporting frames oppositely arranged on the workbench, the two supporting frames are arranged in a sliding mode along a direction perpendicular to the conveying direction, and the two oblique inserting rollers are respectively arranged on the two supporting frames in a rotating mode.
5. The steel pipe finish forming device according to claim 4, wherein the supporting frame comprises a supporting seat and a mounting seat, and the supporting seat is arranged on the frame in a sliding manner along a direction perpendicular to the conveying direction and is used for adjusting the opening and closing distance between the two supporting seats; the mounting seat is arranged on the supporting seat in a sliding manner along the up-down direction and is used for adjusting the height of the mounting seat, and the oblique inserting roller is rotationally connected with the mounting seat.
6. The steel pipe finish forming device according to claim 5, wherein the oblique insertion assembly further comprises a second driver arranged on the supporting seat, and the second driver is connected with the mounting seat and used for driving the mounting seat to slide along the up-down direction.
7. The steel pipe finishing apparatus of claim 1, wherein the upper roll assembly comprises:
the upper roll shaft is rotationally arranged on the frame by taking the first path as an axis, external threads with opposite rotation directions are respectively arranged at two ends of the upper roll shaft, and the two positioning mechanisms are respectively connected with two ends of the upper roll shaft in a threaded manner;
the two guide mechanisms are respectively connected to the frame and are used for limiting the positioning mechanism to move in the axial direction of the upper roll shaft; and
and the third driver is connected with the end part of the upper roll shaft and is used for driving the upper roll shaft to rotate by taking the first path as the axis.
8. The steel pipe finish forming device according to claim 7, wherein the guide mechanism comprises a positioning base connected with the shell of the third driver, the positioning base is provided with a guide plate extending along the axial direction of the upper roll shaft, the positioning mechanism is provided with a guide groove matched with the guide plate, and the guide plate is in sliding fit with the guide groove.
9. The steel pipe finish forming device of claim 8, wherein the positioning mechanism comprises a limiting cylinder rotationally sleeved outside the upper roll shaft, an annular yielding groove is formed in the outer circumferential surface of the limiting cylinder, the yielding groove divides the limiting cylinder into a positioning cylinder and positioning sheets, the positioning sheets in the two positioning mechanisms are positioned between the positioning cylinders in the two positioning mechanisms, the outer circumferential surface of the positioning cylinder is provided with the guide groove, and the positioning sheets are used for being abutted against two side edges of an opening of a pipe blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110962989.4A CN113695434B (en) | 2021-08-20 | 2021-08-20 | Steel pipe precision forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110962989.4A CN113695434B (en) | 2021-08-20 | 2021-08-20 | Steel pipe precision forming device |
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| Publication Number | Publication Date |
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| CN113695434A CN113695434A (en) | 2021-11-26 |
| CN113695434B true CN113695434B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110962989.4A Active CN113695434B (en) | 2021-08-20 | 2021-08-20 | Steel pipe precision forming device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114160627A (en) * | 2021-12-03 | 2022-03-11 | 北京科技大学 | Roll bending forming oblique inserting roll device for complex-section thin-wall component and using method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102395B2 (en) * | 1986-12-26 | 1995-11-08 | 株式会社中田製作所 | Material guide method to the fin roll and its guide roll stand |
| KR20140017904A (en) * | 2012-08-02 | 2014-02-12 | 김정진 | Bending appratus for manufacturing gravure printing roll |
| CN206046736U (en) * | 2016-08-31 | 2017-03-29 | 江苏省南扬机械制造有限公司 | The molding verticle roll unit of flexible roll bending formation production line |
| CN106180306B (en) * | 2016-08-31 | 2018-03-27 | 江苏省南扬机械制造有限公司 | The shaped flat roller device of flexible roll bending formation production line |
| CN211990368U (en) * | 2019-12-25 | 2020-11-24 | 浙江德威不锈钢管业股份有限公司 | Coarse forming assembly for round pipe forming |
| CN113134703A (en) * | 2020-01-20 | 2021-07-20 | 浙江德威不锈钢管业股份有限公司 | Welding assembly for circular tube forming |
| CN213409928U (en) * | 2020-09-18 | 2021-06-11 | 佛山市卓粤建澜机械科技有限公司 | Folding and rolling device of universal automatic pipe making machine |
| CN112355093A (en) * | 2020-11-04 | 2021-02-12 | 佛山市中牌机械有限公司 | Universal horizontal frame forming structure of stainless steel pipe making machine |
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