CN110666009A - Big R bending machine of U type heat exchange tube - Google Patents
Big R bending machine of U type heat exchange tube Download PDFInfo
- Publication number
- CN110666009A CN110666009A CN201910931710.9A CN201910931710A CN110666009A CN 110666009 A CN110666009 A CN 110666009A CN 201910931710 A CN201910931710 A CN 201910931710A CN 110666009 A CN110666009 A CN 110666009A
- Authority
- CN
- China
- Prior art keywords
- chain
- pipe
- heat exchange
- coiled
- rocking arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005452 bending Methods 0.000 title claims abstract description 37
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000002452 interceptive effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000001174 ascending effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- 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
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a large R pipe bender of a U-shaped heat exchange pipe, which comprises: the frame is equipped with the workstation in the frame, can be round the workstation and be reciprocating circular motion's rocking arm, spacing arm, pipe fixed establishment, and spacing arm is located between rocking arm and the pipe fixed establishment, is equipped with the gyro wheel that is used for pressing the pipe on the tip of rocking arm, is equipped with the dog on spacing arm tip, still includes: the chain is provided with a disc chain table at the center of the workbench, the chain can be supported by the workbench to be spirally wound on the circumference of the disc chain table, steps are arranged on the circumferential side wall of the disc chain table, the inner end of the chain can be fixed under the steps when the chain is wound up, and a tensioning device capable of tensioning the chain without interfering with the bent pipe is further arranged on the rack. The coil pipe bending machine can adopt the coiled chain as a large R pipe bending die, and the radius of the coil pipe can be changed by changing the radius of the coiled chain, so that the large R U-shaped heat exchange pipe can be bent without the large R pipe bending die, and the production cost can be greatly reduced.
Description
Technical Field
The invention relates to the field of pipe bending machines, in particular to a large-radius R pipe bending machine for a U-shaped heat exchange pipe, which is used for bending a U-shaped heat exchange pipe with a larger radius R.
Background
The structure of the existing U-shaped heat exchange tube bending machine comprises: the utility model discloses a heat exchanger, including frame, be provided with a workstation in the frame, be provided with a bending die in the center department of workstation, still be provided with a rocking arm, a spacing arm, a pipe fixed establishment that can do reciprocating circular motion round the bending die in the frame, in practical application, the position of rocking arm, spacing arm, pipe fixed establishment all is adjustable usually, is so in order to adapt to the system of bending of the U type heat exchange tube of different R, and pipe fixed establishment's structure usually includes: the two clamping blocks are driven by the cylinder, and can fix the pipe by oppositely clamping the outer side of the pipe; the rotating arm is usually fixed with a rotating shaft on the rack through a connecting arm, a gear is arranged on the rotating shaft, a rack driven by an oil cylinder is arranged on the rack, and the rack is meshed with the gear on the rotating shaft, so that the rotating shaft can be driven to rotate back and forth after the rack moves back and forth, and the rotating arm can be driven to do reciprocating circular motion; rocking arm and spacing arm are all chosen to the workstation top, and spacing arm is located between rocking arm and the pipe fixed establishment, be provided with one on the tip of rocking arm and be used for pressing down the pipe in the ascending gyro wheel of pipe bending die circumference, be provided with a dog on spacing arm tip, the straight tube passes backward between gyro wheel and the pipe bending die forward, pipe fixed establishment can fix the straight tube rear portion, and the dog can block in the straight tube outside, prevent to rise the pipe evagination deformation of knee point rear when the return bend, then under the drive of rocking arm, the gyro wheel can be through pressing the straight tube middle part press the clothes in pipe bending die circumference and carry out the return bend to the straight tube middle part, make the straight tube can be bent and make into U type heat exchange tube. If adopt above-mentioned U type heat exchange tube bending machine to bend the great U type heat exchange tube of R, then just need be equipped with big R bending die, big R bending die has following shortcoming: the manufacturing cost is high, and the U-shaped heat exchange tube with the large R is not a conventional U-shaped heat exchange tube, so that the use times of the large R bent tube die are less, and the production cost can be greatly increased.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the large R pipe bender of the U-shaped heat exchange pipe can reduce the production cost.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a big R bending machine of U type heat exchange tube, includes: the frame is provided with a workstation in the frame, can be round the workstation and do reciprocal circular motion's rocking arm, a spacing arm, a pipe fixed establishment, and rocking arm and spacing arm are all picked out to the workstation top to spacing arm is located between rocking arm and the pipe fixed establishment, is provided with a gyro wheel that is used for pressing the pipe on the tip of rocking arm, is provided with a dog, its characterized in that on spacing arm tip: further comprising: the chain coiling part can be used as a pipe bending die, a step with the height not less than the thickness of the chain is arranged on the circumferential side wall of the plate chain table, the inner end of the chain can be fixed under the step when the chain is coiled, so that the outer ring of the chain cannot be cushioned by the inner end of the chain, and the frame is also provided with a tensioning device which can tension the chain without interfering with the pipe bending, so that the plate chain coiling part can be coiled tightly without loosening; the straight tube passes the gyro wheel forward and coils between the chain after, the gyro wheel can press the pipe in the outer lane week of coiling the chain on, pipe fixed establishment can fix the straight tube rear portion, and the dog can block in the straight tube outside, prevents to rise the evagination deformation of pipe at inflection point rear when the return bend, then under the drive of rocking arm, the gyro wheel can be through pressing the straight tube middle part to press to paste in the outer lane week of coiling the chain on and carry out the return bend to the straight tube middle part, make the straight tube can be bent and make into U type heat exchange tube.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: the plate chain table is provided with a plurality of locking holes which are arranged in an annular mode, the workbench is provided with a plurality of threaded holes which are arranged in an annular mode and correspond to the locking holes one by one, and the plate chain table and the workbench can be fixed after bolts penetrate through the locking holes and are screwed into the threaded holes to be locked.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: the center of the workbench is provided with a mounting column, the mounting column is sleeved with a bearing, the center of the plate chain table is provided with a mounting hole, the plate chain table is sleeved on the bearing through the mounting hole, so that the plate chain table can rotate on the workbench, and the chain which is not coiled can be coiled after the plate chain table rotates.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: the tensioning device is a turnbuckle.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: further comprising: the G-shaped clamp is used for folding a certain part of the part, which is not coiled, of the chain and clamping the folded part through the G-shaped clamp to form a rope buckle, so that the tensioning device can hook the rope buckle to tension the chain.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: the chain is a plate chain.
Further, aforementioned big R bending machine of U type heat exchange tube, wherein: further comprising: when the belt bends the pipe, the belt pad is paved between the pipe and the coiling chain to prevent the outer wall of the pipe from being scratched by the chain.
The invention has the advantages that: the U-shaped heat exchange tube large R pipe bending machine can adopt the coiled chain as a large R pipe bending die, and the radius of the pipe bending can be changed by changing the radius of the coiled chain, so that the U-shaped heat exchange tube with the large R can be bent without the large R pipe bending die, and the production cost can be greatly reduced.
Drawings
Fig. 1 is a schematic structural view of a large R pipe bender with U-shaped heat exchange tubes according to the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.
As shown in fig. 1, a large R tube bender for U-shaped heat exchange tubes comprises: the frame 1, be provided with a workstation 2 in frame 1, a rocking arm 4 that can do reciprocating circular motion round workstation 2, a spacing arm 5, a pipe fixed establishment 6, rocking arm 4 and spacing arm 5 are all picked out to workstation 2 top to spacing arm 5 is located rocking arm 4 and pipe fixed establishment 6 between, is provided with a gyro wheel 41 that is used for pressing the pipe on the tip of rocking arm 4, is provided with a dog 51 on spacing arm 5 tip, still includes: a chain 3, in this embodiment, the chain 3 is a plate-type chain; a disc chain table 31 is arranged at the center of the workbench 2, the chain 3 can be supported by the workbench 2 to be spirally wound on the circumference of the disc chain table 31, so that the winding part of the chain 3 can be used as a pipe bending die, a step 32 with the height not less than the thickness of the chain 3 is arranged on the circumferential side wall of the disc chain table 31, the inner end of the chain 3 can be fixed below the step 32 when the chain 3 is wound, so that the outer ring of the chain 3 can not be cushioned by the inner end of the chain 3, in the embodiment, the inner end of the chain 3 is fixed below the step 32 in a welding manner; a tensioning device 7 is further disposed on the frame 1, the tensioning device 7 can tension the chain 3 without interfering with the pipe bending, so that the lifting portion of the chain 3 can be tightened without loosening, in this embodiment, the tensioning device 7 is a turnbuckle, and further includes: the G-shaped clamp 8 is used for folding a part of the chain 3, which is not coiled, and a rope buckle 81 can be formed after the folded part is clamped by the G-shaped clamp 8, so that the tensioning device 7 can hook the rope buckle 81 to tension the chain 3; the straight tube 9 passes the gyro wheel 41 forward and coils between the chain after, gyro wheel 41 can press the pipe in the outer lane week of coiling the chain on, pipe fixed establishment 6 can be fixed the straight tube 9 rear portion, and dog 51 can block in the straight tube 9 outside, prevent to rise the pipe behind the turning point evagination deformation when the return bend, then under the drive of rocking arm 4, gyro wheel 41 can be through pressing the straight tube 9 middle part and pasting in coiling the chain outer lane week on and carry out the return bend to the straight tube 9 middle part, make the straight tube 9 can be curved and make into U type heat exchange tube.
In this embodiment, a plurality of locking holes 33 are formed in the disc chain table 31 in an annular arrangement, a plurality of threaded holes are formed in the workbench 2 in an annular arrangement and correspond to the locking holes 33 one by one, and the disc chain table 31 and the workbench 2 can be fixed after bolts pass through the locking holes 33 and are screwed into the threaded holes to be locked.
The center of the workbench 2 is provided with a mounting column, a bearing 34 is sleeved on the mounting column, a mounting hole is formed in the center of the plate chain table 31, the plate chain table 31 is sleeved on the bearing 34 through the mounting hole, so that the plate chain table 31 can rotate on the workbench 2, and the un-coiled chain can be coiled after the plate chain table 31 rotates. The arrangement is convenient for workers to coil the chain, so that the outer diameter of the coiled chain can be changed, and the U-shaped heat exchange tube with different bent tube radiuses can be bent.
In this embodiment, the method further includes: and the belt 35 is paved between the pipe and the coiling chain when the pipe is bent, so that the outer wall of the pipe is prevented from being scratched by the chain 3.
When the device works, firstly, a part of the chain 3 is coiled according to the radius of the bent pipe of the U-shaped heat exchange pipe to be bent, the chain 3 needs to be manually driven by a worker to rotate the chain table 31 for coiling, after the coiling is finished, the chain table 31 and the workbench 2 need to be fixed by screwing the bolt into the threaded hole through the locking hole 33 for locking, then the chain 3 is tensioned to prevent the coiling part from loosening, then the positions of the pipe fixing mechanism 6, the roller 41 and the stop block 51 need to be adjusted to adapt to the U-shaped heat exchange pipe to be bent, and the pipe bending operation can be carried out after the adjustment is finished.
Claims (7)
1. The utility model provides a big R bending machine of U type heat exchange tube, includes: the frame is provided with a workstation in the frame, can be round the workstation and do reciprocal circular motion's rocking arm, a spacing arm, a pipe fixed establishment, and rocking arm and spacing arm are all picked out to the workstation top to spacing arm is located between rocking arm and the pipe fixed establishment, is provided with a gyro wheel that is used for pressing the pipe on the tip of rocking arm, is provided with a dog, its characterized in that on spacing arm tip: further comprising: the chain coiling part can be used as a pipe bending die, a step with the height not less than the thickness of the chain is arranged on the circumferential side wall of the plate chain table, the inner end of the chain can be fixed under the step when the chain is coiled, so that the outer ring of the chain cannot be cushioned by the inner end of the chain, and the frame is also provided with a tensioning device which can tension the chain without interfering with the pipe bending, so that the plate chain coiling part can be coiled tightly without loosening; the straight tube passes the gyro wheel forward and coils between the chain after, the gyro wheel can press the pipe in the outer lane week of coiling the chain on, pipe fixed establishment can fix the straight tube rear portion, and the dog can block in the straight tube outside, prevents to rise the evagination deformation of pipe at inflection point rear when the return bend, then under the drive of rocking arm, the gyro wheel can be through pressing the straight tube middle part to press to paste in the outer lane week of coiling the chain on and carry out the return bend to the straight tube middle part, make the straight tube can be bent and make into U type heat exchange tube.
2. The large R pipe bender with U-shaped heat exchange pipes according to claim 1, characterized in that: the plate chain table is provided with a plurality of locking holes which are arranged in an annular mode, the workbench is provided with a plurality of threaded holes which are arranged in an annular mode and correspond to the locking holes one by one, and the plate chain table and the workbench can be fixed after bolts penetrate through the locking holes and are screwed into the threaded holes to be locked.
3. The large R pipe bender with U-shaped heat exchange pipes according to claim 2, characterized in that: the center of the workbench is provided with a mounting column, the mounting column is sleeved with a bearing, the center of the plate chain table is provided with a mounting hole, the plate chain table is sleeved on the bearing through the mounting hole, so that the plate chain table can rotate on the workbench, and the chain which is not coiled can be coiled after the plate chain table rotates.
4. The large R pipe bender with U-shaped heat exchange pipes as claimed in claim 1 or 2, wherein: the tensioning device is a turnbuckle.
5. The large R pipe bender with U-shaped heat exchange pipes as claimed in claim 1 or 2, wherein: further comprising: the G-shaped clamp is used for folding a certain part of the part, which is not coiled, of the chain and clamping the folded part through the G-shaped clamp to form a rope buckle, so that the tensioning device can hook the rope buckle to tension the chain.
6. The large R pipe bender with U-shaped heat exchange pipes as claimed in claim 1 or 2, wherein: the chain is a plate chain.
7. The large R pipe bender with U-shaped heat exchange pipes as claimed in claim 1 or 2, wherein: further comprising: when the belt bends the pipe, the belt pad is paved between the pipe and the coiling chain to prevent the outer wall of the pipe from being scratched by the chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931710.9A CN110666009B (en) | 2019-09-29 | 2019-09-29 | Big R bending machine of U type heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910931710.9A CN110666009B (en) | 2019-09-29 | 2019-09-29 | Big R bending machine of U type heat exchange tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110666009A true CN110666009A (en) | 2020-01-10 |
| CN110666009B CN110666009B (en) | 2024-03-05 |
Family
ID=69079989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910931710.9A Active CN110666009B (en) | 2019-09-29 | 2019-09-29 | Big R bending machine of U type heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110666009B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045006A (en) * | 2020-07-10 | 2020-12-08 | 张家港市昆仑管业有限公司 | Bending method of reverse-rotation spiral pipe |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957357A (en) * | 1995-08-25 | 1997-03-04 | Dai Ichi High Frequency Co Ltd | Bending device for metallic tube |
| JPH11290955A (en) * | 1998-01-30 | 1999-10-26 | Kazuo Shiozuka | Arm mechanism for high frequency bender |
| US20110100084A1 (en) * | 2009-11-05 | 2011-05-05 | Rusch Christopher J | Tube bending machine |
| CN203292252U (en) * | 2013-06-17 | 2013-11-20 | 新疆磐石钢材科技有限公司 | Workbench with adjustable tube-bending machine |
| CN103433339A (en) * | 2013-07-16 | 2013-12-11 | 南阳二机石油装备(集团)有限公司 | Simple tube bending machine with adjustable bending radius |
| CN203678954U (en) * | 2014-01-21 | 2014-07-02 | 中江能源回收扬州有限公司 | Pipe bending device capable of being adjusted in bending radius |
| CN204122534U (en) * | 2014-10-21 | 2015-01-28 | 内蒙古北方重工业集团有限公司 | The hydraulic bending machine of a kind of simmering and bending Large Diameter Pipeline, sheet-metal duct |
| CN204159701U (en) * | 2014-10-23 | 2015-02-18 | 山东金开实业集团有限公司 | U-shaped pipe swan neck system |
| CN204262117U (en) * | 2014-12-02 | 2015-04-15 | 江苏武进不锈股份有限公司 | Automatic pipebender |
| CN206882639U (en) * | 2017-05-19 | 2018-01-16 | 重庆市南川区宏安建筑有限公司 | Steel bar meter equipment |
| CN207709603U (en) * | 2017-11-29 | 2018-08-10 | 杭州佐帕斯工业有限公司 | Ring pipe Bending Mould and cubing integral type tooling |
| CN109317938A (en) * | 2018-09-10 | 2019-02-12 | 张家港市昆仑管业有限公司 | Snakelike helical fin heat exchanger tube connects curved manufacturing process |
| CN211027636U (en) * | 2019-09-29 | 2020-07-17 | 张家港市昆仑管业有限公司 | U-shaped heat exchange tube large R pipe bender |
-
2019
- 2019-09-29 CN CN201910931710.9A patent/CN110666009B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0957357A (en) * | 1995-08-25 | 1997-03-04 | Dai Ichi High Frequency Co Ltd | Bending device for metallic tube |
| JPH11290955A (en) * | 1998-01-30 | 1999-10-26 | Kazuo Shiozuka | Arm mechanism for high frequency bender |
| US20110100084A1 (en) * | 2009-11-05 | 2011-05-05 | Rusch Christopher J | Tube bending machine |
| CN203292252U (en) * | 2013-06-17 | 2013-11-20 | 新疆磐石钢材科技有限公司 | Workbench with adjustable tube-bending machine |
| CN103433339A (en) * | 2013-07-16 | 2013-12-11 | 南阳二机石油装备(集团)有限公司 | Simple tube bending machine with adjustable bending radius |
| CN203678954U (en) * | 2014-01-21 | 2014-07-02 | 中江能源回收扬州有限公司 | Pipe bending device capable of being adjusted in bending radius |
| CN204122534U (en) * | 2014-10-21 | 2015-01-28 | 内蒙古北方重工业集团有限公司 | The hydraulic bending machine of a kind of simmering and bending Large Diameter Pipeline, sheet-metal duct |
| CN204159701U (en) * | 2014-10-23 | 2015-02-18 | 山东金开实业集团有限公司 | U-shaped pipe swan neck system |
| CN204262117U (en) * | 2014-12-02 | 2015-04-15 | 江苏武进不锈股份有限公司 | Automatic pipebender |
| CN206882639U (en) * | 2017-05-19 | 2018-01-16 | 重庆市南川区宏安建筑有限公司 | Steel bar meter equipment |
| CN207709603U (en) * | 2017-11-29 | 2018-08-10 | 杭州佐帕斯工业有限公司 | Ring pipe Bending Mould and cubing integral type tooling |
| CN109317938A (en) * | 2018-09-10 | 2019-02-12 | 张家港市昆仑管业有限公司 | Snakelike helical fin heat exchanger tube connects curved manufacturing process |
| CN211027636U (en) * | 2019-09-29 | 2020-07-17 | 张家港市昆仑管业有限公司 | U-shaped heat exchange tube large R pipe bender |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045006A (en) * | 2020-07-10 | 2020-12-08 | 张家港市昆仑管业有限公司 | Bending method of reverse-rotation spiral pipe |
| CN112045006B (en) * | 2020-07-10 | 2022-02-15 | 张家港市昆仑管业有限公司 | Bending method of reverse-rotation spiral pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110666009B (en) | 2024-03-05 |
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