CN107824645B - Pipe bender head - Google Patents
Pipe bender head Download PDFInfo
- Publication number
- CN107824645B CN107824645B CN201711305615.5A CN201711305615A CN107824645B CN 107824645 B CN107824645 B CN 107824645B CN 201711305615 A CN201711305615 A CN 201711305615A CN 107824645 B CN107824645 B CN 107824645B
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- pipe
- force transmission
- main shaft
- mandrel
- plate
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- 238000005452 bending Methods 0.000 claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a pipe bender head, which comprises a supporting seat arranged on a machine body, wherein a main shaft is rotatably arranged on the supporting seat, a rotating seat is driven on the main shaft, a pipe bending arm is arranged on the rotating seat, a pipe bending arm sliding plate is arranged on the pipe bending arm in a sliding manner, and a pipe bending arm clamping die is arranged on the pipe bending arm sliding plate; the main shaft is of a hollow structure, a mandrel penetrates through the inside of the main shaft, the top end of the mandrel extends to the outside of the rotating seat and is provided with a mold positioning sleeve in a driving mode, a first force transmission plate and a second force transmission plate which are in close contact are sleeved on the mold positioning sleeve, the first force transmission plate is fixedly installed with the rotating seat, and the second force transmission plate is fastened on the mold positioning sleeve; a driving structure is arranged between the bent pipe arm sliding plate and the second force transmission plate; the bottom end of the mandrel extends to the outside of the main shaft and is matched with a return driving mechanism. Through the spindle and the mandrel which are sleeved, synchronous action of the bending arm clamping die and the mandrel during bending and separate action during return are realized, an avoidance space is provided for feeding the pipe, and the purpose of continuously bending the pipe for multiple times is achieved.
Description
Technical Field
The invention relates to the technical field of pipe bending machines, in particular to a pipe bending machine head.
Background
At present, the end of the pipe bending machine is provided with a pipe bending arm driven by a main shaft, a clamping die (one clamping half body) on the pipe bending arm is horizontally and horizontally pushed, a core die (one side of the core die is provided with the other clamping half body, the two clamping half bodies are matched with each other to clamp a pipe) is arranged on the main shaft, the pipe bending arm drives the clamping die to clamp the pipe together in the pipe bending process (the clamping die and the core die are provided with auxiliary pushing dies to clamp the rear of the pipe) and then pipe bending is carried out, and the pipe bending machine adopting the horizontal pushing type pipe bending machine can only bend the pipe once and can not realize continuous pipe bending generally for the following reasons: if secondary bending is required after the bending arm drives the clamping die to bend, the main shaft drives the bending arm and the clamping die on the bending arm to reset, and the core die is also arranged on the main shaft, namely: the mandrel and the bent pipe arm need to perform synchronous action to realize resetting, and the bent pipe is positioned on the mandrel at the moment, so that the mandrel and the bent pipe can interfere with each other in motion during resetting, and further the resetting is impossible, and secondary or multiple bending work cannot be performed.
Disclosure of Invention
The invention aims to provide a pipe bender head so as to achieve the purpose of repeatedly and continuously bending pipes.
In order to solve the technical problems, the technical scheme of the invention is as follows: the pipe bender head comprises a supporting seat arranged at the end part of a pipe bender body, a main shaft driven by a first power device is rotatably arranged on the supporting seat, a rotating seat is driven on the main shaft, a pipe bending arm is arranged on the rotating seat, a pipe bending arm sliding plate driven by a second power device is slidably arranged on the pipe bending arm, and a pipe bending arm clamping die is arranged on the pipe bending arm sliding plate;
the main shaft is of a hollow structure, a mandrel penetrates through the inside of the main shaft, the top end of the mandrel extends to the outside of the rotating seat, a die positioning sleeve is driven at the top end of the mandrel, a first force transmission plate and a second force transmission plate which are close together are sleeved on the die positioning sleeve, the first force transmission plate and the rotating seat are fixedly installed together, and the second force transmission plate is positioned above the first force transmission plate and is fastened on the die positioning sleeve through a fastening element;
a driving structure is arranged between the bent pipe arm sliding plate and the second force transmission plate; the bottom of dabber extends to the outside of main shaft, the bottom of dabber is equipped with return actuating mechanism.
As an improvement, the driving structure comprises a force transmission block arranged on the bent pipe arm sliding plate; the device also comprises a convex block arranged on the second force transmission plate, and a groove matched with the force transmission block is arranged on the convex block;
the first force transfer plate is provided with a positioning block which extends vertically towards the direction of the protruding block.
As a further improvement, a wear-resistant plate sleeved on the die locating sleeve is arranged between the first force transmission plate and the second force transmission plate.
As a still further improvement, the return driving mechanism comprises a rotary gear box arranged on the pipe bender body, the mandrel extends into the rotary gear box, and a gear is arranged on the mandrel positioned in the rotary gear box;
the rotary gear box is also provided with a rotary oil cylinder, a piston rod of the rotary oil cylinder extends into the rotary gear box, the piston rod of the rotary oil cylinder is provided with a plurality of meshing teeth, and the meshing teeth are arranged in an array along the length direction of the piston rod; the meshing teeth mesh with the gear.
As a still further improvement, the first power device is a chain transmission; the second power device comprises an oil cylinder hinged to the bent pipe arm, a first connecting rod and a second connecting rod are hinged to a piston rod of the oil cylinder, one end, away from the oil cylinder, of the first connecting rod is hinged to the bent pipe arm, and one end, away from the oil cylinder, of the second connecting rod is hinged to the bent pipe arm sliding plate.
Due to the adoption of the technical scheme, the pipe bender head has the following beneficial effects:
because the head of the pipe bender comprises a supporting seat arranged at the end part of the pipe bender body, a main shaft driven by a first power device is rotatably arranged on the supporting seat, a rotating seat is driven on the main shaft, a pipe bending arm is arranged on the rotating seat, a pipe bending arm sliding plate driven by a second power device is slidably arranged on the pipe bending arm, and a pipe bending arm clamping die is arranged on the pipe bending arm sliding plate; the main shaft is of a hollow structure, a mandrel penetrates through the inside of the main shaft, the top end of the mandrel extends to the outside of the rotating seat, the top end of the mandrel is provided with a die positioning sleeve, the die positioning sleeve is sleeved with a first force transmission plate and a second force transmission plate which are close together, the first force transmission plate and the rotating seat are fixedly installed together, and the second force transmission plate is positioned above the first force transmission plate and is fastened on the die positioning sleeve through a fastening element; a driving structure is arranged between the bent pipe arm sliding plate and the second force transmission plate; the bottom end of the mandrel extends to the outside of the main shaft, the bottom end of the mandrel is matched with a return driving mechanism, based on the structure, in the concrete work of the pipe bender head, a pipe is clamped by an auxiliary pushing die on a pipe bender body, a pipe bending arm clamping die and a clamping half body on one side of the mandrel (the mandrel and the clamping half body are arranged on a die positioning sleeve), then the main shaft is driven by a first power device to rotate, the main shaft drives a rotating seat and the pipe bending arm to rotate, the clamped pipe moves around the mandrel in the rotating process and realizes primary pipe bending, and in the work, a driving structure matched with the pipe bending arm sliding plate and the second force transmission plate drives the second force transmission plate to synchronously rotate; after the primary pipe bending is finished, the driving structure is separated, the main shaft drives the pipe bending arm to return, in the return process, the mandrel cannot rotate due to the existence of the return driving mechanism, the positions of the mandrel and the clamping half body cannot change, after the pipe bending arm returns, the position of the pipe secondary pipe bending is adjusted, the return driving mechanism drives the mandrel and the mandrel to return, the driving structure is matched, the secondary pipe bending is completed through the working procedures, and the reciprocating mode is completed, so that the repeated pipe bending operation is completed.
In summary, by adopting the pipe bender head, the main shaft and the mandrel are sleeved together, so that synchronous action of the pipe bending arm clamping die and the mandrel during pipe bending and separate action during return are realized, an avoidance space is provided for pipe feeding, the problem of motion interference during secondary pipe bending in the prior art is solved, and the purpose of repeatedly and continuously bending pipes on the same pipe is achieved; the machine head is simple in structure, ingenious in conception and high in practicability.
The driving structure comprises a force transmission block arranged on the bent pipe arm sliding plate; the device also comprises a convex block arranged on the second force transfer plate, and a groove matched with the force transfer block is arranged on the convex block, so that in use, through the insertion and assembly of the force transfer block and the groove on the convex block, the matching and the separation of the bent pipe arm sliding plate and the second force transfer plate (namely, the matching and the separation of the driving structure) are realized, and conditions are provided for the synchronous rotation of the bent pipe arm sliding plate and the independent return of the second force transfer plate when the bent pipe arm sliding plate drives the second force transfer plate to return; the positioning block is arranged on the first force transmission plate, and the positioning block vertically extends towards the direction of the convex block, so that in operation, the first force transmission plate returns firstly (the returning position is determined by propping the pipe bending arm and the frame of the pipe bending machine), then the second force transmission plate returns, the returning position of the second force transmission plate is determined by blocking of the positioning block, the structure is simple, the fixing performance of the relative positions of the first force transmission plate and the second force transmission plate is ensured, and the guarantee is provided for continuous pipe bending operation.
The wear-resistant plate sleeved on the die locating sleeve is arranged between the first force-transferring plate and the second force-transferring plate, so that the wear-resistant plate is in transition between the first force-transferring plate and the second force-transferring plate, and the problems of abrasion and service life reduction when the first force-transferring plate and the second force-transferring plate relatively rotate are avoided.
Because the return driving mechanism comprises a rotary gear box arranged on the pipe bender body, the mandrel extends into the rotary gear box, and a gear is arranged on the mandrel positioned in the rotary gear box; the rotary gear box is also provided with a rotary oil cylinder, a piston rod of the rotary oil cylinder extends into the rotary gear box, the piston rod of the rotary oil cylinder is provided with a plurality of meshing teeth, and the plurality of meshing teeth are arranged in an array along the length direction of the piston rod; the meshing teeth are meshed with the gears, so that when the main shaft drives the first force transfer plate to return after the pipe is bent, the meshing teeth are meshed with the gears, the mandrel is guaranteed not to rotate, the fixity of the positions of the mandrel and the clamping half body is guaranteed, the second force transfer plate is prevented from rotating along with the first force transfer plate through contact friction force, the problem that the mandrel and the pipe are interfered in movement is avoided, and a foundation is laid for continuous pipe bending; after the main shaft drives the bent pipe arm to return, the rotary oil cylinder drives the mandrel and the second force transmission plate to rotate (through the meshing of the meshing teeth and the gears) until the mandrel returns, so that the structure is simple, and the positioning and driving effects on the mandrel are good.
The first power device is in chain transmission, so that the structure is simple, the power is strong, and the driving effect on the main shaft is good (because the rotating seat and the bent pipe arm are driven by the main shaft, the load of the main shaft is large); because the second power device comprises the oil cylinder hinged on the bent pipe arm, the piston rod of the oil cylinder is hinged with the first connecting rod and the second connecting rod, one end of the first connecting rod, which is far away from the oil cylinder, is hinged on the bent pipe arm, and one end of the second connecting rod, which is far away from the oil cylinder, is hinged with the bent pipe arm sliding plate, thereby realizing the driving of the connecting rod mechanism, fully utilizing the space of the bent pipe arm below the bent pipe arm sliding plate, and being beneficial to reducing the space occupancy rate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the first force transfer plate of FIG. 1;
FIG. 3 is a schematic view of the second force transfer plate of FIG. 1;
fig. 4 is a schematic structural view of the first force transfer plate and the second force transfer plate mated (in a mated state after bending);
fig. 5 is a schematic structural view of the first force transfer plate and the second force transfer plate mated (in a mated state after the return of the first force transfer plate after the bend);
FIG. 6 is a schematic view of the return drive mechanism of FIG. 1;
in the figure, a machine body of a 1-pipe bending machine; 2-a supporting seat; 3-a first power plant; 4-a main shaft; 5-a rotating seat; 6-an elbow arm; 601-bending arm slide plate; 602-clamping a bent pipe arm; 603-a force transfer block; 7-a second power unit; 701-an oil cylinder; 702—a first link; 703-a second link; 8-a mandrel; 801-a mold positioning sleeve; 9-a first force transfer plate; 901-positioning blocks; 10-a second force transfer plate; 1001-bump; 1002-groove; 11-a fastening element; 12-a return driving mechanism; 1201-a slewing gear box; 1202-a gear; 1203-rotating cylinder; 1204-engagement teeth; 13-wear plate.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 6 together, a nose of a pipe bender, comprising a supporting seat 2 arranged at the end of a bender body 1, a main shaft 4 driven by a first power device 3 is rotatably arranged on the supporting seat 2, a rotary seat 5 is driven on the main shaft 4, a pipe bending arm 6 is fixedly arranged on the rotary seat 5 through a connecting piece such as a bolt, a pipe bending arm sliding plate 601 driven by a second power device 7 is slidingly arranged on the pipe bending arm 6, and a pipe bending arm clamping die 602 is arranged on the pipe bending arm sliding plate 601; the main shaft 4 is of a hollow structure, a mandrel 8 penetrates through the inside of the main shaft 4, the top end of the mandrel 8 extends to the outside of the rotary seat 5, a die positioning sleeve 801 for installing a mandrel and clamping half bodies is driven at the top end of the mandrel 8, a first force transmission plate 9 and a second force transmission plate 10 which are close together are sleeved on the die positioning sleeve 801, the first force transmission plate 9 is fixedly installed with the rotary seat 5, the second force transmission plate 10 is positioned above the first force transmission plate 9 and is fastened on the die positioning sleeve 801 through a fastening element 11, preferably, the fastening element 11 is a nut in threaded connection with the die positioning sleeve 801, and the second force transmission plate 10 is pressed on the die positioning sleeve 801 through the nut and is close to the first force transmission plate 9; a driving structure is arranged between the bent pipe arm sliding plate 601 and the second force transmission plate 10; the bottom end of the mandrel 8 extends to the outside of the spindle 4, and the bottom end of the mandrel 4 is fitted with a return driving mechanism 12.
The driving structure comprises a force transmission block 603 arranged on the bent pipe arm sliding plate 601; the second force transmission plate 10 further comprises a protruding block 1001, and the protruding block 1001 is provided with a groove 1002 matched with the force transmission block 603; a positioning block 901 is provided on the first force transfer plate 9, and the positioning block 901 extends vertically in the direction of the bump 1001 (see fig. 2 and 3).
A wear-resistant plate 13 sleeved on the die positioning sleeve 801 is arranged between the first force transfer plate 9 and the second force transfer plate 10.
As shown in fig. 4, the return driving mechanism 12 comprises a rotary gear box 1201 arranged on the pipe bender body 1, the mandrel 8 extends into the rotary gear box 1201, and a gear 1202 is arranged on the mandrel 8 positioned in the rotary gear box 1201; a rotary oil cylinder 1203 is further arranged on the rotary gear box 1201, a piston rod of the rotary oil cylinder 1203 extends into the rotary gear box 1201, a plurality of meshing teeth 1204 are arranged on the piston rod of the rotary oil cylinder 1203, and the plurality of meshing teeth 1204 are arranged in an array along the length direction of the piston rod; the engagement teeth 1204 engage with the gear 1202.
The first power device 3 is in chain transmission and comprises a chain wheel arranged on the main shaft 4, and the chain wheel is connected with the main shaft 4 through a key; the second power device 7 comprises an oil cylinder 701 hinged on the pipe bending arm 6, a first connecting rod 702 and a second connecting rod 703 are hinged on a piston rod of the oil cylinder 701, one end of the first connecting rod 702 away from the oil cylinder 701 is hinged on the pipe bending arm 6, and one end of the second connecting rod 703 away from the oil cylinder 701 is hinged with the pipe bending arm sliding plate 601.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The pipe bender head comprises a supporting seat arranged at the end part of a pipe bender body, and is characterized in that a main shaft driven by a first power device is rotatably arranged on the supporting seat, a rotating seat is driven on the main shaft, a pipe bending arm is arranged on the rotating seat, a pipe bending arm sliding plate driven by a second power device is slidably arranged on the pipe bending arm, and a pipe bending arm clamping die is arranged on the pipe bending arm sliding plate; the first power device is in chain transmission and comprises a chain wheel arranged on the main shaft, and the chain wheel is connected with the main shaft through a key;
the main shaft is of a hollow structure, a mandrel penetrates through the inside of the main shaft, the top end of the mandrel extends to the outside of the rotating seat, a die positioning sleeve is driven at the top end of the mandrel, a first force transmission plate and a second force transmission plate which are close together are sleeved on the die positioning sleeve, the first force transmission plate and the rotating seat are fixedly installed together, and the second force transmission plate is positioned above the first force transmission plate and is fastened on the die positioning sleeve through a fastening element;
a driving structure is arranged between the bent pipe arm sliding plate and the second force transmission plate; the bottom end of the mandrel extends to the outside of the main shaft, and a return driving mechanism is matched with the bottom end of the mandrel; the driving structure comprises a force transmission block arranged on the bent pipe arm sliding plate; the device also comprises a convex block arranged on the second force transmission plate, and a groove matched with the force transmission block is arranged on the convex block; the first force transfer plate is provided with a positioning block which extends vertically towards the direction of the protruding block.
2. The tube bender head according to claim 1, wherein a wear plate is provided between the first and second force transfer plates that fits over the die locating sleeve.
3. The tube bender head according to claim 1 or 2, wherein the return driving mechanism comprises a swivel gear box provided on the tube bender body, the mandrel extends into the swivel gear box, and a gear is provided on the mandrel located in the swivel gear box;
the rotary gear box is also provided with a rotary oil cylinder, a piston rod of the rotary oil cylinder extends into the rotary gear box, the piston rod of the rotary oil cylinder is provided with a plurality of meshing teeth, and the meshing teeth are arranged in an array along the length direction of the piston rod; the meshing teeth mesh with the gear.
4. A tube bender head according to claim 3, wherein the second power means comprises an oil cylinder hinged to the tube bending arm, a piston rod of the oil cylinder is hinged to a first connecting rod and a second connecting rod, one end of the first connecting rod away from the oil cylinder is hinged to the tube bending arm, and one end of the second connecting rod away from the oil cylinder is hinged to the tube bending arm slide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305615.5A CN107824645B (en) | 2017-12-11 | 2017-12-11 | Pipe bender head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305615.5A CN107824645B (en) | 2017-12-11 | 2017-12-11 | Pipe bender head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107824645A CN107824645A (en) | 2018-03-23 |
| CN107824645B true CN107824645B (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711305615.5A Active CN107824645B (en) | 2017-12-11 | 2017-12-11 | Pipe bender head |
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| CN (1) | CN107824645B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7360385B1 (en) * | 2007-04-17 | 2008-04-22 | Gm Global Technology Operations, Inc. | Quick change bend tooling bolster |
| CN101722218A (en) * | 2009-10-22 | 2010-06-09 | 张家港市杰创机械有限公司 | Forming device in pipe bender |
| CN102343384A (en) * | 2011-10-16 | 2012-02-08 | 上海国青机械有限公司 | Dual-power-driven digital control pipe bender |
| CN202411170U (en) * | 2011-12-27 | 2012-09-05 | 厦门市西文机械工贸有限公司 | Vertical pipe bending machine |
| CN104475515A (en) * | 2014-09-26 | 2015-04-01 | 张家港市华舜机械制造有限公司 | Pipe bending device of pipe bending machine applied for molding heat transferring tube of nuclear power evaporator |
| CN207508031U (en) * | 2017-12-11 | 2018-06-19 | 张家港市明华机械制造有限公司 | A kind of pipe bender head |
-
2017
- 2017-12-11 CN CN201711305615.5A patent/CN107824645B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7360385B1 (en) * | 2007-04-17 | 2008-04-22 | Gm Global Technology Operations, Inc. | Quick change bend tooling bolster |
| CN101288883A (en) * | 2007-04-17 | 2008-10-22 | 通用汽车环球科技运作公司 | Quick changing bending machining pad pillow |
| CN101722218A (en) * | 2009-10-22 | 2010-06-09 | 张家港市杰创机械有限公司 | Forming device in pipe bender |
| CN102343384A (en) * | 2011-10-16 | 2012-02-08 | 上海国青机械有限公司 | Dual-power-driven digital control pipe bender |
| CN202411170U (en) * | 2011-12-27 | 2012-09-05 | 厦门市西文机械工贸有限公司 | Vertical pipe bending machine |
| CN104475515A (en) * | 2014-09-26 | 2015-04-01 | 张家港市华舜机械制造有限公司 | Pipe bending device of pipe bending machine applied for molding heat transferring tube of nuclear power evaporator |
| CN207508031U (en) * | 2017-12-11 | 2018-06-19 | 张家港市明华机械制造有限公司 | A kind of pipe bender head |
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| Publication number | Publication date |
|---|---|
| CN107824645A (en) | 2018-03-23 |
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