CN112474869B - Three-roller extrusion device for welding sharp-angle square steel - Google Patents
Three-roller extrusion device for welding sharp-angle square steel Download PDFInfo
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- CN112474869B CN112474869B CN202011198580.1A CN202011198580A CN112474869B CN 112474869 B CN112474869 B CN 112474869B CN 202011198580 A CN202011198580 A CN 202011198580A CN 112474869 B CN112474869 B CN 112474869B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a three-roller extrusion device for welding sharp-angled square steel, which comprises an extrusion roller frame, and a lower extrusion roller mechanism and an upper extrusion roller mechanism which are arranged on the extrusion roller frame, wherein the lower extrusion roller mechanism comprises a lower carrier roller for placing a pipe to be processed, a first lifting mechanism is arranged below the lower carrier roller, and the upper extrusion roller mechanism comprises a large supporting plate and a second lifting mechanism for adjusting the height of the large supporting plate; the upper end of the large supporting plate is connected with a sliding frame plate in a sliding mode, the transverse supports are arranged on the left side and the right side of the upper end of the sliding frame plate, two second fine adjustment mechanisms are symmetrically arranged on the transverse supports, the lower ends of the second fine adjustment mechanisms are connected with upper roller sliding blocks used for installing upper supporting rollers, and the upper supporting rollers are inclined to each other to form a certain included angle; and the first fine adjustment mechanism is arranged on one side of the large supporting plate and is used for driving the sliding frame plate to move left and right. The invention has the advantages of more stable and high-speed production, simple and practical structure, convenient adjustment, high extrusion force, high welding seam speed, high welding quality and the like.
Description
Technical Field
The invention belongs to the technical field of metallurgical cold-bending welded pipe extrusion equipment, and particularly relates to a three-roller extrusion device for welding sharp-angled square steel.
Background
The main process of the sharp-corner square steel production line comprises the following steps: the method comprises the following steps that 1, a strip steel coil is opened and enters a straight head leveling machine, the leveled strip steel enters a storage loop, the strip steel enters a deformation unit through loop feeding, the strip steel is deformed into a square shape of a product and then enters a high-frequency welding procedure, and two strip heads in place of deformation are welded at sharp corner positions of the square.
In the welding procedure, the device playing a key role is called extrusion equipment, two strip steel heads are fixed at the sharp corner part of the equipment, and the two strip heads are welded by a high-frequency welding machine to form a welding line under the action of an extrusion roller.
The key squeeze roll of former closed angle square steel welding extrusion equipment forms five roller extrusion forms by 5 groups of running rollers, and various guiding mechanism form five roller extrusion around five rollers, and the square tube of warp is leveled out, and its structure is complicated, and the welding seam extrusion force of closed angle department is little causes the welding seam insecure, easily ftractures, and welding speed is slow, can not reach the product requirement.
Disclosure of Invention
Aiming at the technical problems, the invention provides a three-roller extrusion device suitable for welding production of a sharp-corner square steel pipe, and aims to improve the welding speed and the welding quality.
The technical scheme of the invention is as follows: a three-roller extrusion device for welding sharp-angled square steel comprises an extrusion roller frame, a lower extrusion roller mechanism and an upper extrusion roller mechanism which are arranged on the extrusion roller frame,
the lower extrusion roller mechanism comprises a lower carrier roller which is used for placing a pipe to be processed and is arranged on the horizontal plane of the extrusion roller frame, and a first lifting mechanism which is used for adjusting the height of the lower carrier roller is arranged below the lower carrier roller;
the upper extrusion roller mechanism comprises a first guide rail groove arranged on the vertical surface of the extrusion roller frame, a large supporting plate arranged in the first guide rail groove, and a second lifting mechanism arranged at the top of the extrusion roller frame and used for adjusting the height of the large supporting plate;
the second guide rail groove is arranged in the large supporting plate, the sliding clamping in the second guide rail groove is provided with a sliding frame plate which can move left and right along the inner horizontal direction of the sliding frame plate, the transverse supports are arranged on the left and right sides of the upper end of the sliding frame plate, two second fine adjustment mechanisms are symmetrically arranged on the transverse supports, the lower ends of the second fine adjustment mechanisms are connected with upper roller sliding blocks used for installing upper rollers and used for adjusting the feeding amount of the upper rollers, and the upper rollers are mutually inclined to form an included angle of 70 degrees. The structure installation can ensure that the extrusion acting force is directly pressed at a point close to the welding seam, so that the welding surface is firmer and more reliable.
And the first fine adjustment mechanism is arranged on one side of the large supporting plate and used for driving the sliding frame plate to move left and right along the first guide rail groove in the large supporting plate. The upper carrier roller is controlled to be aligned to the center of the welding line through controlling left and right fine adjustment, so that the welding is more accurate.
Further, the first lifting mechanism comprises a first gear box positioned below the lower supporting roller, a first worm positioned in the first gear box and connected to the bottom of the lower supporting roller at the top, a first gear positioned in the first gear box and in meshing transmission with the first worm, and a first driving motor for providing driving force for the first gear through a first transmission shaft. The upper and lower positions of the lower carrier roller can be adjusted, and automatic driving can be realized by utilizing the first driving motor.
Further, the lower supporting roller comprises a lower roller frame arranged on the top of the first worm, and a lower extrusion roller arranged in the lower roller frame through a roller shaft.
Further, the hole pattern of the lower squeeze roll is a V-shaped structure in conformity with the tube type. The included angle of the opening of the V-shaped structure is 90 degrees, so that the V-shaped structure can be conveniently attached to the sharp-angled square steel more tightly.
Furthermore, first pressing plates for pressing the large supporting plate are arranged on two side edges of the first guide rail groove. The large supporting plate can be prevented from slipping off when sliding up and down in the first guide rail groove.
And further, second pressing plates for pressing the sliding frame plates are arranged on two side edges of the second guide rail groove. The sliding frame plate can be prevented from slipping when sliding left and right in the second guide rail groove.
Further, the second lifting mechanism comprises two second gear boxes arranged at the top of the extrusion roller frame, a second worm penetrating through the second gear boxes and connected to the top of the large supporting plate, a second gear in meshing transmission with the second worm, a second transmission shaft in series connection with the two second gears, and a second driving motor for providing driving force for the second transmission shaft. The position of the upper supporting roller can be automatically driven and adjusted by utilizing the second driving motor.
Furthermore, the first fine adjustment mechanism comprises an installation plate fixed on one side of the large support plate, a first nut is fixed on the outer side of the installation plate, and a first screw rod connected with the first nut through threads penetrates through the side wall of the large support plate to be connected with the sliding frame plate fixedly, so that the left and right feeding amount of the sliding frame plate in the large support plate can be adjusted.
Furthermore, the second fine adjustment mechanism comprises a second nut installed at the upper end of the transverse support and a second lead screw connected with the second nut through threads, and the second lead screw penetrates through the transverse support and is connected to the upper roll sliding block. For adjusting the pressing force acting on the side of the tube to be processed.
Furthermore, the upper roller sliding block is of a C-shaped groove structure, the downward opening end of the upper roller sliding block is fixedly connected with the central shaft of the lower carrier roller through a fixing bolt, and a third pressing plate for pressing the lower carrier roller is arranged at the opening in the side face of the upper roller sliding block. The upper roller sliding block is used for fixing the upper roller sliding block to prevent slipping.
The invention has the beneficial effects that: the lower carrier roller is a V-shaped roller manufactured according to the product shape of a pipe to be processed and serves as a main support roller, the two upper carrier rollers are rectangular rollers, the mutual inclination angle of the two upper carrier rollers is 70 degrees, and the lower carrier rollers can be fixed on a specific frame example to realize a structure for adjusting the upper part, the lower carrier roller and the left part and the right part, so that the novel extrusion roller device formed by the rollers with special angles is applied to producing special welded pipes of sharp-angled square steel, the production can be more stable and high-speed, and compared with the traditional 5-roller extrusion structure, the novel extrusion roller device is simpler and more practical, and the novel extrusion roller device further has the advantages of convenience in adjustment, large extrusion force, high welding seam speed, high welding quality and the like.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention with the second fine adjustment mechanism removed;
FIG. 3 is a partial top view of the present invention;
FIG. 4 is a partial cross-sectional view of FIG. 2 of the present invention;
FIG. 5 is a schematic structural view of the second lifting mechanism of FIG. 1 according to the present invention;
fig. 6 is a schematic structural view of the lower squeeze roller mechanism of fig. 1 according to the present invention.
The device comprises an extrusion roller frame 1, an extrusion roller mechanism 2, an extrusion roller mechanism 3, an extrusion roller mechanism 4, a lower carrier roller 5, a first lifting mechanism 6, a first guide rail groove 7, a large supporting plate 8, a second lifting mechanism 8, a second guide rail groove 9, a sliding frame plate 10, a transverse support 11, a second fine adjustment mechanism 12, an upper roller slide 13, a first fine adjustment mechanism 14, a mounting plate 15, a first gear box 16, a first worm 17, a first gear 18, a first transmission shaft 19, a first driving motor 20, a lower roller frame 21, a roller shaft 22, a lower extrusion roller 23, a first pressing plate 24, a second pressing plate 25, a second gear box 26, a second gear box 27, a second worm 28, a second gear 29, a second transmission shaft 30, a second driving motor 31, a first nut 31, a first screw rod 32, a second screw rod 33, a second nut 34, a second screw rod 35, a third pressing plate 35, an upper screw rod 36, an upper carrier roller 37 and a pipe to be processed.
Detailed Description
As shown in fig. 1, a three-roll extrusion device for welding sharp-angled square steel comprises an extrusion roll frame 1, and a lower extrusion roll mechanism 2 and an upper extrusion roll mechanism 3 which are arranged on the extrusion roll frame 1, wherein the lower extrusion roll mechanism 2 comprises a lower carrier roller 4 which is used for placing a pipe 37 to be processed and is arranged on the horizontal plane of the extrusion roll frame 1, and a first lifting mechanism 5 which is used for adjusting the height of the lower carrier roller 4 is arranged below the lower carrier roller 4; as shown in fig. 6, the first lifting mechanism 5 includes a first gear box 16 located below the lower support roller 4, a first worm 17 located in the first gear box 16 and connected to the bottom of the lower support roller 4 at the top, a first gear 18 located in the first gear box 16 and in meshing transmission with the first worm 17, and a first driving motor 20 for providing a driving force to the first gear 18 through a first transmission shaft 19. The up-and-down position of the lower supporting roller 4 can be adjusted, and automatic driving can be realized by using the first driving motor 20. The lower idler 4 comprises a lower roll housing 21 mounted on top of the first worm 17, and a lower squeeze roll 23 mounted in the lower roll housing 21 by a roll shaft 22. The hole pattern of the lower squeeze roll 23 is a V-shaped structure in conformity with the tube type. The opening included angle of the V-shaped structure is 90 degrees, so that the V-shaped structure can be conveniently attached to the square steel with the sharp corner more tightly.
As shown in fig. 1, the upper squeeze roller mechanism 3 includes a first guide rail groove 6 formed in a vertical surface of the squeeze roller frame 1, a large pallet 7 installed in the first guide rail groove 6, and a second lifting mechanism 8 provided at the top of the squeeze roller frame 1 for adjusting the height of the large pallet 7; as shown in fig. 5, the second lifting mechanism 8 includes two second gear boxes 26 mounted on the top of the squeeze roller frame 1, a second worm 27 penetrating the second gear boxes 26 and connected to the top of the large pallet 7, a second gear 28 in mesh with the second worm 27, a second transmission shaft 29 connecting the two second gears 28 in series, and a second driving motor 30 providing a driving force for the second transmission shaft 29. The position of the upper idler 36 can be automatically driven and adjusted by the second drive motor 30.
As shown in fig. 1 and 4, a second guide rail groove 9 is formed in the large support plate 7, a sliding frame plate 10 capable of moving left and right along the horizontal direction of the inside of the second guide rail groove 9 is slidably clamped in the second guide rail groove 9, transverse supports 11 are arranged on the left side and the right side of the upper end of the sliding frame plate 10, two second fine adjustment mechanisms 12 are symmetrically arranged on the transverse supports 11, the lower ends of the second fine adjustment mechanisms 12 are connected with upper roller sliders 13 used for installing upper rollers 36 and used for adjusting the feeding amount of the upper rollers 36, and the upper rollers 36 are inclined to form an included angle of 70 degrees. The structure installation can ensure that the extrusion acting force is directly pressed at a point close to the welding seam, so that the welding surface is firmer and more reliable. And second pressing plates 25 for pressing the sliding frame plate 10 are arranged on two side edges of the second guide rail groove 9. The sliding frame plate 10 can be prevented from slipping when sliding left and right in the second guide rail groove 9.
As shown in fig. 1, the second fine adjustment mechanism 12 includes a second nut 33 mounted on the upper end of the transverse bracket 11, and a second lead screw 34 connected with the second nut 33 through a screw, wherein the second lead screw 34 is connected to the upper roller block 13 through the transverse bracket 11. For adjusting the pressing force acting on the side of the tube 37 to be processed. The upper roller sliding block 13 is of a C-shaped groove structure, the downward opening end of the upper roller sliding block 13 is fixedly connected with the central shaft of the lower carrier roller 4 through a fixing bolt, and a third pressing plate 35 for pressing the lower carrier roller 4 is arranged at the opening of the side face of the upper roller sliding block 13. For fixing the upper roller shoe 13 against slipping.
As shown in fig. 2, a first fine adjustment mechanism 14 is installed at one side of the large pallet 7 for driving the carriage plate 10 to move left and right along the first guide rail groove 6 in the large pallet 7. The upper carrier roller 36 is controlled to be aligned to the center of the welding line through controlling left and right fine adjustment, so that the welding is more accurate. As shown in fig. 3, first pressing plates 24 for pressing the large pallets 7 are provided on both sides of the first rail groove 6. The large supporting plate 7 can be prevented from slipping off when sliding up and down in the first guide rail groove 6. As shown in fig. 2, the first fine adjustment mechanism 14 includes an installation plate 15 fixed on one side of the large support plate 7, a first nut 31 fixed on the outer side of the installation plate 15, and a first lead screw 32 connected with the first nut 31 through a thread, wherein the first lead screw 32 penetrates through the side wall of the large support plate 7 to be connected with the slide frame plate 10 for adjusting the left and right feeding amount of the slide frame plate 10 in the large support plate 7.
The working method of the embodiment comprises the following steps:
firstly, adjusting two upper carrier rollers 36 to be consistent with the center of a lower carrier roller 4 through the matching of a first screw rod 32 and a first nut 31 on a first fine adjustment mechanism 14 according to the center height and hole pattern of a pipe 37 to be processed before welding, and adjusting the vertical distance between the lower carrier roller 4 and the upper carrier roller 36 through the gear and worm transmission of a first lifting mechanism 5;
secondly, the formed pipe 37 to be processed enters extrusion equipment under the driving of a unit, and when the pipe 37 to be processed is positioned in the V-shaped hole pattern of the lower supporting rollers 4, the large supporting plate 7 can be driven by the gear worm of the second lifting mechanism 8 to slide downwards along the first guide rail groove 6 until the two lower supporting rollers 4 contact the side surface of the pipe 37 to be processed;
and thirdly, the upper roller sliding block 13 with the upper supporting roller 36 is fed along the inclined plane direction of the sliding frame plate 10 by adjusting the cooperation of the second screw rod 34 and the second nut 33 of the second fine adjustment mechanism 12, and the extrusion force of the upper supporting roller 36 on the pipe 37 to be processed is adjusted so as to control the hole pattern and the pressing angle and facilitate welding.
Claims (3)
1. A three-roller extrusion device for welding a sharp-angled square steel pipe is characterized by comprising an extrusion roller frame (1), a lower extrusion roller mechanism (2) and an upper extrusion roller mechanism (3) which are arranged on the extrusion roller frame (1),
the lower extrusion roller mechanism (2) comprises a lower carrier roller (4) which is used for placing a pipe (37) to be processed and is arranged on the horizontal plane of the extrusion roller frame (1), and a first lifting mechanism (5) which is used for adjusting the height of the lower carrier roller (4) is arranged below the lower carrier roller;
the upper squeeze roll mechanism (3) comprises a first guide rail groove (6) formed in the vertical surface of the squeeze roll rack (1), a large supporting plate (7) installed in the first guide rail groove (6), and a second lifting mechanism (8) arranged at the top of the squeeze roll rack (1) and used for adjusting the height of the large supporting plate (7);
a second guide rail groove (9) is formed in the large supporting plate (7), a sliding frame plate (10) capable of moving left and right along the horizontal direction of the inner part of the second guide rail groove (9) is slidably clamped in the second guide rail groove (9), transverse supports (11) are arranged on the left side and the right side of the upper end of the sliding frame plate (10), two second fine adjustment mechanisms (12) are symmetrically installed on the transverse supports (11), the lower end of each second fine adjustment mechanism (12) is connected with an upper roller sliding block (13) used for installing an upper roller (36) and used for adjusting the feeding amount of the upper roller (36), and the two upper rollers (36) are rectangular rollers and mutually inclined to form a certain included angle;
a first fine adjustment mechanism (14) is installed on one side of the large supporting plate (7), and the first fine adjustment mechanism (14) is used for driving the sliding frame plate (10) to move left and right along a second guide rail groove (9) in the large supporting plate (7);
the first lifting mechanism (5) comprises a first gear box (16) positioned below the lower carrier roller (4), a first worm (17) positioned in the first gear box (16) and connected to the bottom of the lower carrier roller (4) at the top, a first gear (18) positioned in the first gear box (16) and in meshing transmission with the first worm (17), and a first driving motor (20) for providing driving force for the first gear (18) through a first transmission shaft (19);
the lower carrier roller (4) comprises a lower roller frame (21) arranged at the top of the first worm (17), and a lower extrusion roller (23) arranged in the lower roller frame (21) through a roller shaft (22);
the hole pattern of the lower extrusion roll (23) is a V-shaped structure consistent with a pipe type;
the second lifting mechanism (8) comprises two second gear boxes (26) arranged at the top of the extrusion roller frame (1), a second worm (27) penetrating through the second gear boxes (26) and connected to the top of the large supporting plate (7), a second gear (28) in meshing transmission with the second worm (27), a second transmission shaft (29) connected with the two second gears (28) in series, and a second driving motor (30) for providing driving force for the second transmission shaft (29);
the first fine adjustment mechanism (14) comprises an installation plate (15) fixed on one side of the large support plate, a first nut (31) is fixed on the outer side of the installation plate (15), a first screw rod (32) is connected with the first nut (31) through threads, and the first screw rod (32) penetrates through the side wall of the large support plate (7) and is fixedly connected with the sliding frame plate (10) and used for adjusting the left-right feeding amount of the sliding frame plate (10) in the large support plate (7);
the second fine adjustment mechanism (12) comprises a second nut (33) installed at the upper end of the transverse support (11) and a second screw rod (34) connected with the second nut (33) through threads, and the second screw rod (34) penetrates through the transverse support (11) and is connected to the upper roller sliding block (13).
2. The three-roll extrusion device for welding the sharp-angled square steel tube according to claim 1, wherein the two sides of the first guide rail groove (6) are provided with first press plates (24) for pressing the large support plate (7).
3. The three-roll extrusion device for welding sharp-angled square steel tubes according to claim 1, wherein the second pressing plates (25) for pressing the carriage plate (10) are arranged on two side edges of the second guide rail groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198580.1A CN112474869B (en) | 2020-10-31 | 2020-10-31 | Three-roller extrusion device for welding sharp-angle square steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198580.1A CN112474869B (en) | 2020-10-31 | 2020-10-31 | Three-roller extrusion device for welding sharp-angle square steel |
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| CN112474869A CN112474869A (en) | 2021-03-12 |
| CN112474869B true CN112474869B (en) | 2023-02-28 |
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|---|---|---|---|---|
| CN113957218B (en) * | 2021-10-25 | 2022-12-02 | 燕山大学 | Rolling device and method for improving fatigue performance of welded joint |
| CN113857639A (en) * | 2021-10-28 | 2021-12-31 | 凌云西南工业有限公司 | Automobile pipe beam welding process |
| CN116851488A (en) * | 2023-06-27 | 2023-10-10 | 天津源泰德润钢管制造集团有限公司 | A square tube forming and processing system |
| CN116809730A (en) * | 2023-06-28 | 2023-09-29 | 博瑞孚曼机械科技(苏州)有限公司 | Ultra-high strength steel roll press forming welding equipment and processing method |
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| JPS59113921A (en) * | 1982-12-20 | 1984-06-30 | Nisshin Steel Co Ltd | Double square tube and its manufacturing device |
| CN202922132U (en) * | 2012-11-20 | 2013-05-08 | 浙江久立特材科技股份有限公司 | Three-roller enclosed welding device |
| CN103433638A (en) * | 2013-08-12 | 2013-12-11 | 大连三高科技发展有限公司 | Band steel welding extrusion device for high frequency welding test bed |
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| CN109702014A (en) * | 2018-12-25 | 2019-05-03 | 衡阳华菱钢管有限公司 | The fixed square device of Trailer car shaft, Trailer car shaft and preparation method thereof |
| CN211386440U (en) * | 2019-12-31 | 2020-09-01 | 江苏省南扬机械制造有限公司 | Welded pipe forming and extruding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS59113921A (en) * | 1982-12-20 | 1984-06-30 | Nisshin Steel Co Ltd | Double square tube and its manufacturing device |
| CN202922132U (en) * | 2012-11-20 | 2013-05-08 | 浙江久立特材科技股份有限公司 | Three-roller enclosed welding device |
| CN203389986U (en) * | 2013-07-17 | 2014-01-15 | 广东志达精密管业制造有限公司 | Improved three-roller extruding device for welding forming of large-calibre thin-wall tube |
| CN103433638A (en) * | 2013-08-12 | 2013-12-11 | 大连三高科技发展有限公司 | Band steel welding extrusion device for high frequency welding test bed |
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