CN111229892A - Bender of high accuracy steel pipe - Google Patents
Bender of high accuracy steel pipe Download PDFInfo
- Publication number
- CN111229892A CN111229892A CN202010112571.XA CN202010112571A CN111229892A CN 111229892 A CN111229892 A CN 111229892A CN 202010112571 A CN202010112571 A CN 202010112571A CN 111229892 A CN111229892 A CN 111229892A
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- steel pipe
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- fixed connection
- telescopic cylinder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 238000005452 bending Methods 0.000 claims abstract description 60
- 238000001125 extrusion Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000003351 stiffener Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a high-precision steel pipe bending machine, which comprises a steel pipe and a bending machine body, wherein the steel pipe is slidably connected to the top of the bending machine body, a chute is arranged on the bending machine body, the steel pipe is slidably connected to the chute, a pushing device is arranged on the bending machine body, the pushing device comprises a rotating motor, a supporting plate, a rotating shaft, a driving gear, a gear strip, a driven gear, a threaded rod, a limiting rod, a positioning plate, a first telescopic cylinder, an extrusion piece and a positioning piece, the rotating motor is fixedly connected to the outer side of the bending machine body through the supporting plate, the output end of the rotating motor is fixedly connected with one end of the rotating shaft, the high-precision steel pipe bending machine can realize high-precision automatic bending of the steel pipe only by manually operating a control panel, meanwhile, the steel pipe can be, and simultaneously, the safety performance is improved.
Description
Technical Field
The invention relates to the technical field of bending machines, in particular to a high-precision steel pipe bending machine.
Background
The bending machine is a machine capable of bending thin plates, and mainly comprises a support, a workbench and a clamping plate, wherein the workbench is arranged on the support and comprises a base and a pressing plate, the base is connected with the clamping plate through a hinge, the base comprises a seat shell, a coil and a cover plate, the coil is arranged in a recess of the seat shell, the cover plate is covered at the top of the recess, the coil is electrified by a wire during use, and the attraction force is generated on the pressing plate after the coil is electrified, so that the thin plates between the pressing plate and the base are clamped. The electromagnetic force clamping is adopted, so that the pressing plate can be made into various workpiece requirements, and the workpiece with the side wall can be processed, and the operation is very simple and convenient.
The great steel pipe of current model is when bending, adopt manual operation usually, will wait to bend by manual work and place the steel pipe on the module of bending, and because the steel pipe rigidity is stronger, need artifical promotion steel pipe many times, carry out the steel pipe and bend the regulation, and consume a large amount of manpowers at the in-process that promotes the steel pipe, certain potential safety hazard exists simultaneously, simultaneously at the in-process of adjusting, steel pipe location is unstable, lead to the steel pipe deviation to appear when bending easily, and then reduce the precision that the steel pipe was bent, for this reason, we provide a bender of high accuracy steel pipe.
Disclosure of Invention
The invention aims to provide a high-precision steel pipe bending machine to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a bending machine for high-precision steel pipes comprises a steel pipe and a bending machine body, wherein the steel pipe is connected to the top of the bending machine body in a sliding mode, a sliding groove is formed in the bending machine body, the steel pipe is connected to the sliding groove in a sliding mode, a pushing device is arranged on the bending machine body and comprises a rotating motor, a supporting plate, a rotating shaft, a driving gear, a gear strip, a driven gear, a threaded rod, a limiting rod, a positioning plate, a first telescopic cylinder, an extrusion piece and a positioning piece, the rotating motor is fixedly connected to the outer side of the bending machine body through the supporting plate, the output end of the rotating motor is fixedly connected with one end of the rotating shaft, the other end of the rotating shaft is rotatably connected with the outer side of the bending machine body through a bearing, the driving gear is fixedly sleeved on the outer side of the rotating shaft and, the driving gear is rotationally connected with two driven gears through a gear rack, the driven gears are fixedly sleeved on the outer side of the threaded rod, two limit grooves are symmetrically arranged in the bending machine body, one end of the threaded rod is rotatably connected to the outer side of the bending machine body through a bearing, the other end of the threaded rod is rotatably connected inside the limit groove through a bearing, the bottom of the limit rod is provided with a threaded hole, and the limiting rod is sleeved outside the threaded rod in a threaded manner, one end of the limiting rod is connected inside the limiting groove in a sliding manner, the positioning plate is fixedly connected at one end of the limiting rod far away from the threaded rod, and the first telescopic cylinder is fixedly connected with the top of the positioning plate which is connected with the bending machine body in a sliding way, first telescopic cylinder output passes through extruded article and steel pipe outside contact, setting element fixed connection is at the top of bender body, and the setting element output contacts with the steel pipe outside.
Preferably, the extruded article is including supporting shell, fixed plate and extrusion piece, support shell and first telescopic cylinder output end fixed connection, and the both sides of fixed plate pass through bolt and support shell fixed connection, one side fixed connection of extrusion piece is in one side that the support shell was kept away from to the fixed plate, and extrusion piece opposite side and steel pipe swing joint.
Preferably, one side of the extrusion block, which is close to the steel pipe, is provided with anti-skid grains.
Preferably, one side of the extrusion block, which is close to the steel pipe, is arc-shaped.
Preferably, the setting element includes second telescopic cylinder, stiffener, spacing shell, connecting piece, arc piece and auxiliary block, be equipped with extrusion mechanism on the bender body, second telescopic cylinder passes through connecting plate and bender body fixed connection, the one end fixed connection of second telescopic cylinder output and stiffener, and the other end and the spacing shell fixed connection of stiffener, spacing shell passes through connecting piece and arc piece fixed connection, arc piece and steel pipe contact, and the auxiliary block is located the one side that the arc piece was kept away from to the steel pipe, auxiliary block fixed connection is on the bender body.
Preferably, the connecting piece includes stopper, buffer spring, baffle and joint piece, stopper fixed connection is in the outside of arc piece, and the inside joint groove that is equipped with of stopper, buffer spring sliding connection is in the joint inslot portion, and buffer spring's both ends are respectively through baffle and joint piece fixed connection, baffle sliding connection is in the joint inslot portion, the one end that the baffle was kept away from to the joint piece passes stopper and spacing shell respectively, and the joint piece respectively with stopper and spacing shell sliding connection.
Preferably, one end of the clamping block, which is far away from the baffle, is in a semicircular shape.
Preferably, the anti-slip pad is arranged on one side, close to each other, of the arc-shaped block and the auxiliary block.
Preferably, be equipped with control panel on the bender body, and rotate motor, first telescopic cylinder and second telescopic cylinder respectively with control panel electric connection.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the steel pipe bending machine, the sliding chute is formed in the bending machine body, so that the sliding position of a steel pipe can be limited, and meanwhile, the pushing device is arranged on the bending machine, so that when the steel pipe is bent, the steel pipe can be placed on the bending machine body only manually, the pushing device can clamp and position the steel pipe, and when the steel pipe is bent, the steel pipe is pushed to move towards the direction of the extrusion mechanism, so that when a steel pipe with a larger model is bent, the steel pipe can be bent automatically with high precision only by manually operating the control panel, meanwhile, the steel pipe can be bent in different models, the use efficiency of the bending machine body is improved, the labor is.
2. The anti-slip pad is arranged on one side, close to the auxiliary block, of the arc block, so that abrasion caused by friction between the arc block and the auxiliary block and the steel pipe is reduced, and the anti-slip threads are arranged on one side, close to the steel pipe, of the extrusion block, so that friction between the extrusion block and the steel pipe is increased.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a front view of the overall structure of the present invention;
FIG. 4 is a side cross-sectional view of the overall structure of the present invention;
FIG. 5 is a side view of a second telescopic cylinder of the present invention;
FIG. 6 is a top cross-sectional view of a connector of the present invention;
FIG. 7 is a diagram illustrating an electrical connection relationship of a control panel according to the present invention.
In the figure: 1-a steel pipe; 2-bending machine body; 3-a chute; 4-a pushing device; 5-rotating the motor; 6-a support plate; 7-a rotating shaft; 8-a drive gear; 9-a gear rack; 10-a driven gear; 11-a threaded rod; 12-a limiting rod; 13-positioning plate; 14-a first telescopic cylinder; 15-extrusion; 16-a positioning element; 17-a limit groove; 18-a support shell; 19-fixing the plate; 20-extruding a block; 21-a second telescopic cylinder; 22-a reinforcing rod; 23-a limit shell; 24-a connector; 25-an arc-shaped block; 26-an auxiliary block; 27-a limiting block; 28-a buffer spring; 29-a baffle; 30-a clamping block; 31-a clamping groove; 32-a non-slip mat; 33-a control panel; 34-a bolt; 35-pressing mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a bending machine for high-precision steel pipes comprises a steel pipe 1 and a bending machine body 2, wherein the steel pipe 1 is slidably connected to the top of the bending machine body 2, a chute 3 is formed in the bending machine body 2, the steel pipe 1 is slidably connected to the chute 3, a pushing device 4 is arranged on the bending machine body 2, the pushing device 4 comprises a rotating motor 5, a supporting plate 6, a rotating shaft 7, a driving gear 8, a gear bar 9, a driven gear 10, a threaded rod 11, a limiting rod 12, a positioning plate 13, a first telescopic cylinder 14, an extrusion part 15 and a positioning part 16, the rotating motor 5 is fixedly connected to the outer side of the bending machine body 2 through the supporting plate 6, the output end of the rotating motor 5 is fixedly connected with one end of the rotating shaft 7, the other end of the rotating shaft 7 is rotatably connected with the outer side of the bending machine body, and the driving gear 8 is engaged with the gear bar 9, the driven gears 10 are provided with two, and the two driven gears 10 are symmetrically distributed on one side of the bending machine body 2, the driving gear 8 is rotationally connected with the two driven gears 10 through the gear bar 9, the driven gears 10 are fixedly sleeved outside the threaded rod 11, two limiting grooves 17 are symmetrically arranged inside the bending machine body 2, one end of the threaded rod 11 is rotationally connected outside the bending machine body 2 through a bearing, the other end of the threaded rod 11 is rotationally connected inside the limiting groove 17 through a bearing, the bottom of the limiting rod 12 is provided with a threaded hole, the threaded rod 11 is sleeved outside the threaded rod 12 through a thread, one end of the limiting rod 12 is slidably connected inside the limiting groove 17, the positioning plate 13 is fixedly connected at one end of the limiting rod 12 far away from the threaded rod 11, and the first telescopic cylinder 14 is fixedly connected at the top, locating plate 13 and bender body 2 sliding connection, the first telescopic cylinder 14 output passes through extruded article 15 and the contact in the steel pipe 1 outside, setting element 16 fixed connection is at the top of bender body 2, and 16 outputs of setting element and the contact in the steel pipe 1 outside.
The extruded part 15 is including supporting shell 18, fixed plate 19 and extrusion piece 20, support shell 18 and the fixed connection of first telescopic cylinder 14 output, and the both sides of fixed plate 19 pass through bolt 34 and support shell 18 fixed connection, one side fixed connection of extrusion piece 20 is in the one side that support shell 18 was kept away from to fixed plate 19, and extrusion piece 20 opposite side and steel pipe 1 swing joint, through being equipped with extruded part 15 to the location of steel pipe 1 of being convenient for.
The side of the extrusion block 20 close to the steel pipe 1 is provided with anti-slip threads, so that the friction force between the extrusion block 20 and the steel pipe 1 is increased.
One side of the extrusion block 20 close to the steel pipe 1 is arc-shaped, so that the extrusion block 20 and the steel pipe 1 are conveniently connected.
Locating piece 16 includes the flexible cylinder 21 of second, stiffener 22, spacing shell 23, connecting piece 24, arc piece 25 and auxiliary block 26, be equipped with extrusion mechanism 35 on the bender body 2, the flexible cylinder 21 of second passes through connecting plate and bender body 2 fixed connection, the flexible cylinder 21 output of second and the one end fixed connection of stiffener 22, and the other end and the spacing shell 23 fixed connection of stiffener 22, spacing shell 23 passes through connecting piece 24 and arc piece 25 fixed connection, arc piece 25 and steel pipe 1 contact, and auxiliary block 26 is located one side that arc piece 25 was kept away from to steel pipe 1, auxiliary block 26 fixed connection is on bender body 2, through being equipped with locating piece 16, when extrusion mechanism 35 moves, plays the positioning action to steel pipe 1.
Connecting piece 24 includes stopper 27, buffer spring 28, baffle 29 and joint piece 30, stopper 27 fixed connection is in the outside of arc piece 25, and stopper 27 inside is equipped with joint groove 31, buffer spring 28 sliding connection is inside joint groove 31, and buffer spring 28's both ends are respectively through baffle 29 and joint piece 30 fixed connection, baffle 29 sliding connection is inside joint groove 31, stopper 27 and spacing shell 23 are passed respectively to the one end that baffle 29 was kept away from to joint piece 30, and joint piece 30 respectively with stopper 27 and spacing shell 23 sliding connection, through being equipped with connecting piece 24 to be convenient for arc piece 25 and the second telescopic cylinder 21 between can dismantle and be connected.
One end, far away from the baffle 29, of the clamping block 30 is in a semicircular shape, so that clamping between the clamping block 30 and the limiting shell 23 is facilitated.
The anti-slip pad 32 is arranged on one side, close to each other, of the arc-shaped block 25 and the auxiliary block 26, and the anti-slip pad 32 is arranged, so that friction between the arc-shaped block 25 and the auxiliary block 26 and the steel pipe 1 is reduced.
Be equipped with control panel 33 on bender body 2, and rotate motor 5, first telescopic cylinder 14 and second telescopic cylinder 21 respectively with control panel 33 electric connection, through control panel 33 to the operation of motor 5, first telescopic cylinder 14 and second telescopic cylinder 21 is rotated in the drive.
The working principle is as follows: according to the invention, a steel pipe 1 is placed on a chute 3 of a bending machine body 2, an extrusion block 20 is changed into a shape which is consistent with the model of the steel pipe 1, at the moment, a control panel 33 drives two first telescopic cylinders 14 to operate, so that the two extrusion blocks 20 clamp the outer side of the steel pipe 1, at the moment, the control panel 33 drives a rotating motor 5 to operate, so that a driving gear 8 rotates to drive a rack 9 to operate, the rack 9 drives two driven gears 10 to rotate, and further a threaded rod 11 rotates, so that a limiting rod 12 drives a positioning plate 13 to horizontally move on the bending machine body 2, because the first telescopic cylinders 14 are fixed on the positioning plate 13, the steel pipe 1 is further moved to an extrusion mechanism 35, because the second telescopic cylinders 21 are close to the extrusion mechanism 35, and meanwhile, the output ends of the second telescopic cylinders 21 are fixedly connected with a reinforcing rod 22, the extrusion strength of the second telescopic cylinders 21 is enhanced, and a clamping block 30 is fixedly connected with, simultaneously under buffer spring 28's effect is passed through to the junction, inside joint piece 30 card goes into spacing shell 23, and then realizes the quick assembly disassembly of joint piece 30, and control panel 33 drive second telescopic cylinder 21 operation this moment, and extrusion mechanism 35 bends steel pipe 1 to the realization is to the accurate positioning of steel pipe 1, makes steel pipe 1 have stability when bending more.
In the scheme, the type of the rotating motor is preferably 5N2311S020, the type of the first telescopic cylinder 14 is preferably SC6375, and the type of the second telescopic cylinder 21 is preferably TN25X 10S.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a bender of high accuracy steel pipe, includes steel pipe (1) and bender body (2), its characterized in that: the steel pipe (1) is connected to the top of the bending machine body (2) in a sliding manner, a sliding groove (3) is formed in the bending machine body (2), the steel pipe (1) is connected to the sliding groove (3) in a sliding manner, a pushing device (4) is arranged on the bending machine body (2), the pushing device (4) comprises a rotating motor (5), a supporting plate (6), a rotating shaft (7), a driving gear (8), a gear strip (9), a driven gear (10), a threaded rod (11), a limiting rod (12), a positioning plate (13), a first telescopic cylinder (14), an extrusion part (15) and a positioning part (16), the rotating motor (5) is fixedly connected to the outer side of the bending machine body (2) through the supporting plate (6), the output end of the rotating motor (5) is fixedly connected with one end of the rotating shaft (7), the other end of the rotating shaft (7) is rotatably connected with the, the driving gear (8) is fixedly sleeved on the outer side of the rotating shaft (7), the driving gear (8) is meshed with the gear strip (9), two driven gears (10) are arranged, the two driven gears (10) are symmetrically distributed on one side of the bending machine body (2), the driving gear (8) is rotatably connected with the two driven gears (10) through the gear strip (9), the driven gears (10) are fixedly sleeved on the outer side of the threaded rod (11), two limiting grooves (17) are symmetrically arranged in the bending machine body (2), one end of the threaded rod (11) is rotatably connected to the outer side of the bending machine body (2) through a bearing, the other end of the threaded rod (11) is rotatably connected to the inner side of the limiting groove (17) through a bearing, a threaded hole is formed in the bottom of the limiting rod (12), and the limiting rod (12) is in threaded sleeve connection with the outer side of the threaded rod (11), one end sliding connection of gag lever post (12) is inside in spacing groove (17), locating plate (13) fixed connection is in the one end that threaded rod (11) were kept away from in gag lever post (12), and first telescopic cylinder (14) fixed connection is at locating plate (13) top, locating plate (13) and bender body (2) sliding connection, first telescopic cylinder (14) output passes through extruded article (15) and steel pipe (1) outside contact, setting element (16) fixed connection is at the top of bender body (2), and setting element (16) output and steel pipe (1) outside contact.
2. The bending machine for high-precision steel pipes according to claim 1, is characterized in that: extruded piece (15) are including supporting shell (18), fixed plate (19) and extrusion piece (20), support shell (18) and first telescopic cylinder (14) output end fixed connection, and bolt (34) and support shell (18) fixed connection are passed through to the both sides of fixed plate (19), one side fixed connection of extrusion piece (20) is in one side that support shell (18) were kept away from in fixed plate (19), and extrusion piece (20) opposite side and steel pipe (1) swing joint.
3. The bending machine for high-precision steel pipes according to claim 2, is characterized in that: and anti-skid grains are arranged on one side, close to the steel pipe (1), of the extrusion block (20).
4. The bending machine for high-precision steel pipes according to claim 2, is characterized in that: one side of the extrusion block (20) close to the steel pipe (1) is arc-shaped.
5. The bending machine for high-precision steel pipes according to claim 1, is characterized in that: setting element (16) includes second telescopic cylinder (21), stiffener (22), spacing shell (23), connecting piece (24), arc piece (25) and auxiliary block (26), be equipped with extrusion mechanism (35) on bender body (2), second telescopic cylinder (21) pass through connecting plate and bender body (2) fixed connection, the one end fixed connection of second telescopic cylinder (21) output and stiffener (22), and the other end and spacing shell (23) fixed connection of stiffener (22), spacing shell (23) pass through connecting piece (24) and arc piece (25) fixed connection, arc piece (25) and steel pipe (1) contact, and auxiliary block (26) are located one side that arc piece (25) were kept away from in steel pipe (1), auxiliary block (26) fixed connection is on body (2).
6. The bending machine for high-precision steel pipes according to claim 5, is characterized in that: connecting piece (24) include stopper (27), buffer spring (28), baffle (29) and joint piece (30), stopper (27) fixed connection is in the outside of arc piece (25), and stopper (27) inside is equipped with joint groove (31), buffer spring (28) sliding connection is inside joint groove (31), and the both ends of buffer spring (28) are respectively through baffle (29) and joint piece (30) fixed connection, baffle (29) sliding connection is inside joint groove (31), stopper (27) and spacing shell (23) are passed respectively to the one end that baffle (29) were kept away from in joint piece (30), and joint piece (30) respectively with stopper (27) and spacing shell (23) sliding connection.
7. The bending machine for high-precision steel pipes according to claim 6, is characterized in that: one end of the clamping block (30) far away from the baffle (29) is in a semicircular shape.
8. The bending machine for high-precision steel pipes according to claim 5, is characterized in that: and an anti-skid pad (32) is arranged on one side of the arc-shaped block (25) close to the auxiliary block (26).
9. The bending machine for high-precision steel pipes according to claim 1, is characterized in that: be equipped with control panel (33) on bender body (2), and rotate motor (5), first telescopic cylinder (14) and second telescopic cylinder (21) and respectively with control panel (33) electric connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010112571.XA CN111229892A (en) | 2020-02-24 | 2020-02-24 | Bender of high accuracy steel pipe |
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| CN202010112571.XA CN111229892A (en) | 2020-02-24 | 2020-02-24 | Bender of high accuracy steel pipe |
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| CN112091094A (en) * | 2020-09-09 | 2020-12-18 | 谷建兴 | Boiler economizer forming and manufacturing device and method thereof |
| CN112091094B (en) * | 2020-09-09 | 2022-04-19 | 浙江海特锅炉有限公司 | Boiler economizer forming and manufacturing device and method thereof |
| CN112404184A (en) * | 2020-11-10 | 2021-02-26 | 湖南吉人住工装配式建筑有限公司 | Bender of supplementary compact structure for building |
| CN113084948A (en) * | 2021-03-30 | 2021-07-09 | 霍邱县淮美奇工艺品有限公司 | Arc-bending forming machine for processing bamboo and wood products and forming method thereof |
| CN115041555A (en) * | 2022-07-27 | 2022-09-13 | 南通众旺金属制品有限公司 | Steel pipe bending device and method for preventing elastic deformation |
| CN116550822A (en) * | 2023-05-12 | 2023-08-08 | 山东力军建设工程有限公司 | Hollow steel pipe bending mechanism |
| CN116550822B (en) * | 2023-05-12 | 2023-09-26 | 山东力军建设工程有限公司 | Hollow steel pipe bending mechanism |
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Application publication date: 20200605 |