CN110666009B - 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
- CN110666009B CN110666009B CN201910931710.9A CN201910931710A CN110666009B CN 110666009 B CN110666009 B CN 110666009B CN 201910931710 A CN201910931710 A CN 201910931710A CN 110666009 B CN110666009 B CN 110666009B
- Authority
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- China
- Prior art keywords
- chain
- pipe
- heat exchange
- coiled
- shaped heat
- 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.)
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- 238000005452 bending Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 following steps: the frame is equipped with the workstation in the frame, can do rocking arm, spacing arm, the pipe fixed establishment of reciprocal circular motion round the workstation, 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 a disc in a spiral shape on the circumference of the disc chain table, a step is arranged on the circumferential side wall of the disc chain table, the inner end of the chain can be fixed under the step when the chain is coiled, and a tensioning device capable of tensioning the chain under the condition of not obstructing the bent pipe is further arranged on the rack. The bending machine can adopt the coiled chain as a large R-shaped pipe bending die, and the radius of the bent pipe can be changed by changing the radius of the coiled chain, so that the U-shaped heat exchange pipe with large R can be bent without the large R-shaped 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 R pipe bending machine for a U-shaped heat exchange pipe with a larger bending radius R.
Background
The structure of the existing U-shaped heat exchange tube bending machine comprises: the frame is provided with a workstation in the frame, is provided with a bend die in the center department of workstation, still is provided with a rocking arm, a spacing arm, a pipe fixed establishment that can reciprocate circular motion round the bend die in the frame, in practical application, the position of rocking arm, spacing arm, pipe fixed establishment is adjustable generally, so in order to adapt to the bending of the U type heat exchange tube of different R, the structure of pipe fixed establishment generally includes: two clamping blocks, one clamping block is fixed, the other clamping block is driven by a cylinder, and the two clamping blocks can be clamped on the outer side of the pipe to fix the pipe under the driving of the cylinder; 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, the rack is meshed with the gear on the rotating shaft, and thus 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; the rotary arm and the limiting arm are both picked out to the upper part of the workbench, the limiting arm is positioned between the rotary arm and the pipe fixing mechanism, a roller used for pressing a pipe on the circumference of the pipe bending die is arranged at the end part of the rotary arm, a stop block is arranged at the end part of the limiting arm, after the straight pipe passes forward between the roller and the pipe bending die, the pipe fixing mechanism can fix the rear part of the straight pipe, the stop block can block the outer side of the straight pipe, the pipe behind a bending point is prevented from protruding outwards and deforming when being bent, then the roller can press and fit the middle part of the straight pipe on the circumference of the pipe bending die under the driving of the rotary arm, so that the straight pipe can be bent into a U-shaped heat exchange pipe. If the U-shaped heat exchange tube bending machine is adopted to bend the U-shaped heat exchange tube with larger R, a large R-shaped tube bending die is needed to be equipped, and the large R-shaped tube bending die has the following defects: the manufacturing cost is high, and because the U-shaped heat exchange tube with large R is not a conventional U-shaped heat exchange tube, the use times of the large R pipe bending die are less, so that the production cost can be greatly increased.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the U-shaped heat exchange tube large R pipe bender can reduce production cost.
In order to solve the problems, the invention adopts the following technical scheme: a U-shaped heat exchange tube large R pipe bending machine comprises: the frame is provided with a workstation, a rocking arm that can do reciprocal circular motion round the workstation, a spacing arm, a pipe fixed establishment in the frame, rocking arm and spacing arm all pick 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 on spacing arm tip, its characterized in that: further comprises: the chain is provided with a chain coiling table at the center of the workbench, the chain can be supported by the workbench to be coiled on the circumference of the chain coiling table, so that a chain coiling part can be used as a pipe bending die, a step with the height not smaller than the thickness of the chain is arranged on the circumferential side wall of the chain coiling table, the inner end of the chain can be fixed under the step when the chain is coiled, the outer ring of the chain can not be cushioned by the inner end of the chain, and a tensioning device is further arranged on the rack and can tension the chain under the condition of not obstructing the pipe bending, so that the coiled part on the chain can be coiled tightly but not loosened; after the straight pipe passes through the roller and the coiling chain forwards, the roller can press the pipe on the circumference of the outer ring of the coiling chain, the pipe fixing mechanism can fix the rear part of the straight pipe, the stop block can block the outer side of the straight pipe, the pipe behind the bending point is prevented from being outwards deformed during pipe bending, then the roller can press the middle part of the straight pipe to be adhered to the circumference of the outer ring of the coiling chain to bend the middle part of the straight pipe under the driving of the rotating arm, and the straight pipe can be bent into a U-shaped heat exchange pipe.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: the chain table is provided with a plurality of locking holes which are annularly arranged, the workbench is provided with a plurality of threaded holes which are annularly arranged and are in one-to-one correspondence with the locking holes, and bolts penetrate through the locking holes and are screwed into the threaded holes to be locked, so that the chain table and the workbench can be fixed.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: the center of the workbench is provided with a mounting column, the mounting column is sleeved with a bearing, the center of the disc chain table is provided with a mounting hole, the disc chain table is sleeved on the bearing through the mounting hole, the disc chain table can rotate on the workbench, and the chain which is not coiled can be coiled after the disc chain table rotates.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: the tensioning device is a turnbuckle.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: further comprises: the G-shaped clamp is used for folding a part of the chain which is not coiled, and a rope buckle can be formed after the folding part is clamped by the G-shaped clamp, so that the tensioning device can hook the rope buckle to tension the chain.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: the chain is a plate type chain.
Further, the large R pipe bending machine for the U-shaped heat exchange pipe comprises the following components: further comprises: and when the pipe is bent, the belt is laid between the pipe and the coiled chain, so that the outer wall of the pipe is prevented from being scratched by the chain.
The invention has the advantages that: the U-shaped heat exchange tube large R pipe bender provided by the invention can adopt the coiled chain as a large R pipe bending die, and the radius of the bent pipe can be changed by changing the radius of the coiled chain, so that the U-shaped heat exchange tube with 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 diagram of a large R pipe bender for U-shaped heat exchange pipes.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in FIG. 1, a large R pipe bender for U-shaped heat exchange pipes comprises: the frame 1, be provided with a workstation 2, a rocking arm 4 that can reciprocate circular motion round workstation 2, a spacing arm 5, a pipe fixed establishment 6 on frame 1, rocking arm 4 and spacing arm 5 all pick to workstation 2 top to spacing arm 5 is located between rocking arm 4 and pipe fixed establishment 6, 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 form a spiral disc on the circumference of the disc chain table 31, so that the disc 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 under the step 32 when the chain 3 is disc, so that the outer ring of the chain 3 can not be cushioned by the inner end of the chain 3, and in the embodiment, the inner end of the chain 3 is fixed under the step 32 in a welding mode; the frame 1 is further provided with a tensioning device 7, and the tensioning device 7 can tension the chain 3 without interfering with the bent pipe, so that the coiled part of the chain 3 can be coiled tightly but not loosened, in this embodiment, the tensioning device 7 is a turnbuckle, and further comprises: 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 folding 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; after the straight pipe 9 passes forward between the roller 41 and the coiling chain, the roller 41 can press the pipe on the circumference of the outer ring of the coiling chain, the pipe fixing mechanism 6 can fix the rear part of the straight pipe 9, the stop block 51 can block the outer side of the straight pipe 9 to prevent the pipe behind the bending point from being outwards deformed during pipe bending, then under the driving of the rotating arm 4, the roller 41 can press the middle part of the straight pipe 9 to be adhered to the circumference of the outer ring of the coiling chain to bend the middle part of the straight pipe 9, so that the straight pipe 9 can be bent into a U-shaped heat exchange pipe.
In this embodiment, a plurality of locking holes 33 are arranged on the chain table 31 in an annular arrangement, a plurality of threaded holes are arranged on the table 2 in an annular arrangement and correspond to the locking holes 33 one by one up and down, and bolts pass through the locking holes 33 and are screwed into the threaded holes to lock the chain table 31 and the table 2.
A mounting column is arranged at the center of the workbench 2, a bearing 34 is sleeved on the mounting column, a mounting hole is arranged at the center of the disc chain table 31, the disc chain table 31 is sleeved on the bearing 34 through the mounting hole, the disc chain table 31 can rotate on the workbench 2, and the unreeling chain can be reeled after the disc chain table 31 rotates. The U-shaped heat exchange tube bending device is convenient for workers to coil the chain, and the outer diameter of the coil chain can be changed, so that the U-shaped heat exchange tube bending device is suitable for bending U-shaped heat exchange tubes with different bending radii.
In this embodiment, further comprising: and the belt 35 is paved between the pipe and the coiled chain in a pad mode when the pipe is bent, so that the outer wall of the pipe is prevented from being scratched by the chain 3.
When the bending machine works, 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 coiled by manually driving the chain coiling table 31 to rotate by a worker, the chain coiling table 31 and the workbench 2 are fixed by screwing bolts into threaded holes through the locking holes 33 after coiling, the chain 3 is tensioned to prevent the coiling part from loosening, and then the positions of the pipe fixing mechanism 6, the idler wheels 41 and the stop blocks 51 are adjusted to adapt to the U-shaped heat exchange pipe to be bent, so that the bending operation can be performed after the adjustment.
Claims (7)
1. A U-shaped heat exchange tube large R pipe bending machine comprises: the frame is provided with a workstation, a rocking arm that can do reciprocal circular motion round the workstation, a spacing arm, a pipe fixed establishment in the frame, rocking arm and spacing arm all pick 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 on spacing arm tip, its characterized in that: further comprises: the chain is provided with a chain coiling table at the center of the workbench, the chain can be supported by the workbench to be coiled on the circumference of the chain coiling table, so that a chain coiling part can be used as a pipe bending die, a step with the height not smaller than the thickness of the chain is arranged on the circumferential side wall of the chain coiling table, the inner end of the chain can be fixed under the step when the chain is coiled, the outer ring of the chain can not be cushioned by the inner end of the chain, and a tensioning device is further arranged on the rack and can tension the chain under the condition of not obstructing the pipe bending, so that the coiled part on the chain can be coiled tightly but not loosened; after the straight pipe passes through the roller and the coiling chain forwards, the roller can press the pipe on the circumference of the outer ring of the coiling chain, the pipe fixing mechanism can fix the rear part of the straight pipe, the stop block can block the outer side of the straight pipe, the pipe behind the bending point is prevented from being outwards deformed during pipe bending, then the roller can press the middle part of the straight pipe to be adhered to the circumference of the outer ring of the coiling chain to bend the middle part of the straight pipe under the driving of the rotating arm, and the straight pipe can be bent into a U-shaped heat exchange pipe.
2. The large R-tube bending machine for U-shaped heat exchange tubes of claim 1, wherein: the chain table is provided with a plurality of locking holes which are annularly arranged, the workbench is provided with a plurality of threaded holes which are annularly arranged and are in one-to-one correspondence with the locking holes, and bolts penetrate through the locking holes and are screwed into the threaded holes to be locked, so that the chain table and the workbench can be fixed.
3. The large R-tube bending machine for U-shaped heat exchange tubes of claim 2, wherein: the center of the workbench is provided with a mounting column, the mounting column is sleeved with a bearing, the center of the disc chain table is provided with a mounting hole, the disc chain table is sleeved on the bearing through the mounting hole, the disc chain table can rotate on the workbench, and the chain which is not coiled can be coiled after the disc chain table rotates.
4. A large R-tube bender for U-shaped heat exchange tubes according to claim 1 or 2, characterized in that: the tensioning device is a turnbuckle.
5. A large R-tube bender for U-shaped heat exchange tubes according to claim 1 or 2, characterized in that: further comprises: the G-shaped clamp is used for folding a part of the chain which is not coiled, and a rope buckle can be formed after the folding part is clamped by the G-shaped clamp, so that the tensioning device can hook the rope buckle to tension the chain.
6. A large R-tube bender for U-shaped heat exchange tubes according to claim 1 or 2, characterized in that: the chain is a plate type chain.
7. A large R-tube bender for U-shaped heat exchange tubes according to claim 1 or 2, characterized in that: further comprises: and when the pipe is bent, the belt is laid between the pipe and the coiled chain, so that the outer wall of the pipe is prevented 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 CN110666009A (en) | 2020-01-10 |
| CN110666009B true CN110666009B (en) | 2024-03-05 |
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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 |
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| CN (1) | CN110666009B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8171765B2 (en) * | 2009-11-05 | 2012-05-08 | Rusch Christopher J | Tube bending machine |
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2019
- 2019-09-29 CN CN201910931710.9A patent/CN110666009B/en active Active
Patent Citations (12)
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN110666009A (en) | 2020-01-10 |
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