CN112275883A - Pipe fitting machining device and pipe expander - Google Patents
Pipe fitting machining device and pipe expander Download PDFInfo
- Publication number
- CN112275883A CN112275883A CN202011105095.5A CN202011105095A CN112275883A CN 112275883 A CN112275883 A CN 112275883A CN 202011105095 A CN202011105095 A CN 202011105095A CN 112275883 A CN112275883 A CN 112275883A
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- pipe
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- pipe fitting
- machining
- machining device
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- 238000003754 machining Methods 0.000 title claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 238000012545 processing Methods 0.000 claims abstract description 40
- 238000003780 insertion Methods 0.000 claims abstract description 26
- 230000037431 insertion Effects 0.000 claims abstract description 26
- 230000007704 transition Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000013011 mating Effects 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turning (AREA)
Abstract
The invention provides a pipe fitting machining device and a pipe expander, wherein the pipe fitting machining device comprises a machining head, the machining head comprises an insertion part for inserting the inside of a pipe fitting, and the insertion part comprises a sealing section; the cross-sectional area of the sealing section is gradually reduced along the direction towards the free end of the insertion part, so that when the sealing section is inserted into the pipe fitting, the pipe wall of the pipe fitting is expanded through the outer wall of the sealing section; the inside of processing head is equipped with gas passage, and gas passage runs through the processing head setting, and gas passage's first end is used for being connected with outside air supply, and gas passage's second end is located the free end of grafting portion to when grafting portion inserts inside the pipe fitting, supply gas in to the pipe fitting through gas passage, in order to expand the pipe fitting. The pipe fitting machining device solves the problem that pipe expanding equipment in the prior art is complex in structure.
Description
Technical Field
The invention relates to the field of pipe expanding equipment, in particular to a pipe fitting machining device and a pipe expander.
Background
In the production process of the heat exchanger of the air conditioner, the pipe expander is required to be used for expanding the pipe fitting so as to enable the pipe fitting to be in full contact with the radiating fin, and therefore the heat exchange effect of the heat exchanger is guaranteed.
The existing pipe expanding equipment adopts a mechanical pipe expanding principle, namely, an expansion ball is driven to be inserted into a pipe fitting through the movement of an expansion rod to realize pipe expanding operation, the pipe expanding equipment adopting the structural design has more parts, complex structure and high failure rate, and can easily cause great abrasion to the pipe fitting in the pipe expanding process.
Disclosure of Invention
The invention mainly aims to provide a pipe fitting machining device and a pipe expander so as to solve the problem that pipe expander equipment in the prior art is complex in structure.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pipe machining apparatus including a machining head including a socket for inserting into an interior of a pipe, the socket including a seal section; the cross-sectional area of the sealing section is gradually reduced along the direction towards the free end of the insertion part, so that when the sealing section is inserted into the pipe fitting, the pipe wall of the pipe fitting is expanded through the outer wall of the sealing section; the inside of processing head is equipped with gas passage, and gas passage runs through the processing head setting, and gas passage's first end is used for being connected with outside air supply, and gas passage's second end is located the free end of grafting portion to when grafting portion inserts inside the pipe fitting, supply gas in to the pipe fitting through gas passage, in order to expand the pipe fitting.
Further, the insertion part comprises a flaring section, and the flaring section is positioned on one side of the sealing section, which is far away from the free end of the insertion part; the cross-sectional area of the flared section is not less than the maximum cross-sectional area of the seal section.
Furthermore, the surface of the sealing section is a conical surface, and the surface of the flaring section is a cylindrical surface.
Further, the insertion part comprises a transition section, and the transition section is positioned between the sealing section and the flaring section; the surface of the transition section is an arc-shaped surface, and the arc-shaped surface extends to the surface of the sealing section and the surface of the flaring section.
Further, the processing head is a plurality of, and pipe fitting processingequipment includes the mount pad, and a plurality of processing heads are all installed on the mount pad to drive a plurality of processing heads through the mount pad and be close to or keep away from the pipe fitting.
Further, the pipe fitting is the U-shaped pipe, and a plurality of processing heads set up pairwise to through making the grafting portion of two processing heads set up in pairs correspondingly insert in two mouths of a tube of U-shaped pipe, in order to expand the pipe to the U-shaped pipe.
Furthermore, a threaded through hole is formed in the mounting seat; the machining head comprises a connecting section, external threads are arranged on the outer wall of the connecting section, and the connecting section is matched with the threaded through hole; the gas channel extends to the end of the connecting section.
Further, the pipe fitting processing device comprises a positioning seat, and a positioning through hole for the pipe fitting to penetrate through is formed in the positioning seat.
Furthermore, the positioning through hole comprises a main body hole section and a guide hole section which are communicated with each other, and the aperture of the guide hole section is gradually reduced along the direction close to the main body hole section so that the insertion part is inserted into the main body hole section through the guide hole section.
According to another aspect of the present invention, there is provided a pipe expander for expanding a pipe of a heat exchanger, the pipe expander comprising: the fixing device is used for fixing the heat exchanger; the pipe fitting processing device is the pipe fitting processing device; and the driving device is connected with the pipe fitting machining device so as to drive the machining head to be inserted into the pipe fitting or drawn out of the pipe fitting.
The pipe fitting machining device adopting the technical scheme of the invention comprises a machining head, wherein the machining head comprises an inserting part which is used for being inserted into the pipe fitting, and the inserting part comprises a sealing section; the cross-sectional area of the sealing section is gradually reduced along the direction towards the free end of the insertion part, so that when the sealing section is inserted into the pipe fitting, the pipe wall of the pipe fitting is expanded through the outer wall of the sealing section; the inside of processing head is equipped with gas passage, and gas passage runs through the processing head setting, and gas passage's first end is used for being connected with outside air supply, and gas passage's second end is located the free end of grafting portion to when grafting portion inserts inside the pipe fitting, supply gas in to the pipe fitting through gas passage, in order to expand the pipe fitting. Like this, at the in-process that grafting portion inserted the pipe fitting, the sealed section of grafting portion can expand the pipe wall of pipe fitting to make the inner wall of sealed section and pipe fitting closely cooperate, play reliable sealed effect, at this moment, rethread gas channel is to the inside air feed of pipe fitting, can realize carrying out the purpose of expand tube to the pipe fitting. Compared with the existing mechanical tube expansion equipment, the tube processing device adopting the tube expansion mode can effectively simplify the structure of the equipment on the basis of ensuring the tube expansion effect, is favorable for reducing the equipment cost, and solves the problem of complex structure of the tube expansion equipment in the prior art.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows a schematic view of a first perspective of a machining head of an embodiment of a pipe machining device according to the invention;
figure 2 shows a schematic structural view of a second viewing angle of the machining head of an embodiment of the pipe machining device according to the invention;
figure 3 shows a schematic cross-sectional structural view of a machining head of an embodiment of a pipe machining device according to the invention;
figure 4 shows a schematic structural view from a third perspective of an embodiment of a pipe machining apparatus according to the present invention;
figure 5 shows a schematic structural view from a fourth perspective of an embodiment of a pipe machining apparatus according to the present invention;
figure 6 shows a schematic structural view from a fifth perspective of an embodiment of a pipe machining apparatus according to the present invention;
figure 7 shows a schematic structural view of the positioning socket of an embodiment of the pipe machining device according to the invention;
fig. 8 shows a schematic cross-sectional structure of the positioning socket of the embodiment of the pipe machining device according to the invention.
Wherein the figures include the following reference numerals:
1. a machining head; 11. a plug-in part; 111. a sealing section; 112. a flared section; 113. a transition section; 114. a guide surface; 12. a gas channel; 13. a connecting section; 14. an operation section; 2. a mounting seat; 21. a threaded through hole; 3. positioning seats; 31. positioning the through hole; 311. a body bore section; 312. a pilot hole segment; 10. a heat exchanger; 100. a pipe fitting.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 8, the present invention provides a pipe processing apparatus, which includes a processing head 1, the processing head 1 includes an insertion part 11 for inserting into an interior of a pipe 100, the insertion part 11 includes a sealing section 111; the cross-sectional area of the sealing section 111 decreases gradually in a direction toward the free end of the socket 11 to expand the pipe wall of the pipe 100 by the outer wall of the sealing section 111 when the sealing section 111 is inserted inside the pipe 100; the processing head 1 is internally provided with a gas passage 12, the gas passage 12 penetrates through the processing head 1, a first end of the gas passage 12 is used for being connected with an external gas source, and a second end of the gas passage 12 is located at a free end of the insertion part 11, so that when the insertion part 11 is inserted into the pipe fitting 100, gas is supplied into the pipe fitting 100 through the gas passage 12, and the pipe fitting 100 is expanded.
The pipe fitting machining device comprises a machining head 1, wherein the machining head 1 comprises a plug-in part 11 for being inserted into the interior of a pipe fitting 100, and the plug-in part 11 comprises a sealing section 111; the cross-sectional area of the sealing section 111 decreases gradually in a direction toward the free end of the socket 11 to expand the pipe wall of the pipe 100 by the outer wall of the sealing section 111 when the sealing section 111 is inserted inside the pipe 100; the processing head 1 is internally provided with a gas passage 12, the gas passage 12 penetrates through the processing head 1, a first end of the gas passage 12 is used for being connected with an external gas source, and a second end of the gas passage 12 is located at a free end of the insertion part 11, so that when the insertion part 11 is inserted into the pipe fitting 100, gas is supplied into the pipe fitting 100 through the gas passage 12, and the pipe fitting 100 is expanded. Like this, in the in-process in inserting pipe fitting 100 at grafting portion 11, the sealing section 111 of grafting portion 11 can expand the pipe wall of pipe fitting 100 to make sealing section 111 closely cooperate with the inner wall of pipe fitting 100, play reliable sealed effect, at this moment, rethread gas channel 12 is to the inside air feed of pipe fitting 100, can realize carrying out the purpose of expand tube to pipe fitting 100. Compared with the existing mechanical tube expansion equipment, the tube processing device adopting the tube expansion mode can effectively simplify the structure of the equipment on the basis of ensuring the tube expansion effect, is favorable for reducing the equipment cost, and solves the problem of complex structure of the tube expansion equipment in the prior art.
Moreover, the pneumatic tube expansion device with the structure can simplify the operation, is convenient to use, reduces the abrasion to the pipe fittings and improves the tube expansion quality.
The side of the sealing section 111 close to the free end of the spigot 11 is provided with a guide surface 114 to allow the sealing section 111 to be inserted more smoothly into the interior of the pipe 100. Preferably, the guide surface 114 is an arcuate surface.
The socket 11 comprises a flared section 112, the flared section 112 being located on a side of the sealing section 111 remote from the free end of the socket 11; the cross-sectional area of the flared section 112 is not less than the maximum cross-sectional area of the seal section 111. In this way, when the part of the pipe 100 expanded by the sealing section 111 continues to move to the flaring section 112, the flaring structure is formed on the pipe 100, so that the flaring and expanding operations of the pipe 100 are realized at one time. Compared with the mode that the pipe expander and the flaring machine are adopted to respectively expand and flare the pipe fitting in the prior art, the method can effectively simplify the operation flow and improve the production efficiency.
Specifically, the surface of the sealing section 111 is a conical surface, and the surface of the flared section 112 is a cylindrical surface.
Furthermore, the socket 11 comprises a transition section 113, the transition section 113 being located between the sealing section 111 and the flared section 112; the surface of the transition section 113 is an arcuate surface that extends to the surface of the seal section 111 and the surface of the flared section 112. In this way, the pipe fitting 100 can be moved from the sealing section 111 to the flaring section 112 more smoothly, and damage to the inner wall of the pipe fitting 100 is reduced.
In order to improve the expand tube efficiency, processing head 1 is a plurality of, and pipe fitting processingequipment includes mount pad 2, and a plurality of processing heads 1 are all installed on mount pad 2 to drive a plurality of processing heads 1 through mount pad 2 and be close to or keep away from pipe fitting 100. In this way, a plurality of processing heads 1 can be synchronously driven to move, so that the pipe expanding operation on a plurality of pipes 100 can be realized at one time.
Specifically, the pipe fitting 100 is a U-shaped pipe, and the plurality of processing heads 1 are provided in pairs two by two so as to expand the U-shaped pipe by inserting the insertion parts 11 of the two processing heads 1 provided in pairs into two mouths of the U-shaped pipe, respectively.
The mounting seat 2 is provided with a threaded through hole 21; the machining head 1 comprises a connecting section 13, external threads are arranged on the outer wall of the connecting section 13, and the connecting section 13 is matched with the threaded through hole 21; the gas channel 12 extends to the end of the connecting section 13. Thus, not only is the fixing of the processing head 1 realized, but also the gas channel 12 extends to the end part of the connecting section 13, the connection between the gas channel 12 and an external gas source is not influenced, and the smoothness of gas supply is ensured.
In addition, the machining head 1 includes an operation portion 14, and the operation portion 14 has a mating surface that mates with a wrench, so that attachment or detachment of the machining head 1 is achieved by twisting the operation portion 14 using the wrench.
Specifically, the pipe fitting processing device includes a positioning seat 3, and a positioning through hole 31 for the pipe fitting 100 to penetrate through is formed in the positioning seat 3.
When carrying out the expand tube operation, make pipe fitting 100 penetrate positioning hole 31 on the positioning seat 3 earlier, can realize the location to pipe fitting 100, then make in inserting pipe fitting 100 of grafting portion 11 of processing head 1 to carry out the air feed in to pipe fitting 100, like this, can carry out reliable fixed to pipe fitting 100, guarantee that the grafting portion 11 of processing head 1 can insert in the mouth of pipe fitting 100 more accurately, thereby guarantee to process the reliability.
In addition, when the pipe fitting 100 is inserted into the positioning through hole 31 of the positioning socket 3 and then the flaring operation is performed, the shape of the flare can be more restricted by the inner wall of the positioning through hole 31, and the precision of the flaring operation can be improved.
Specifically, the pipe fitting processingequipment is used for carrying out the expand tube to pipe fitting 100 of heat exchanger 10, and heat exchanger 10 includes sideboard, fin and pipe fitting 100, and back in pipe fitting 100 inserts positioning hole 31 of positioning seat 3, positioning seat 3 all contacts with sideboard and fin to can carry out reliable fixed to heat exchanger 10, be favorable to improving the reliability of expand tube operation.
Specifically, the positioning through hole 31 includes a main body hole section 311 and a guide hole section 312 which are communicated with each other, and the hole diameter of the guide hole section 312 is gradually reduced in a direction close to the main body hole section 311, so that the insertion part 11 is inserted into the main body hole section 311 through the guide hole section 312.
In addition, the present invention provides a pipe expander for expanding a pipe 100 of a heat exchanger 10, the pipe expander including: a fixing device for fixing the heat exchanger 10; the pipe fitting processing device is the pipe fitting processing device; and a driving device connected with the pipe machining device to drive the machining head 1 to be inserted into the pipe 100 or to be withdrawn from the pipe 100.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the pipe fitting machining device comprises a machining head 1, wherein the machining head 1 comprises a plug-in part 11 for being inserted into the interior of a pipe fitting 100, and the plug-in part 11 comprises a sealing section 111; the cross-sectional area of the sealing section 111 decreases gradually in a direction toward the free end of the socket 11 to expand the pipe wall of the pipe 100 by the outer wall of the sealing section 111 when the sealing section 111 is inserted inside the pipe 100; the processing head 1 is internally provided with a gas passage 12, the gas passage 12 penetrates through the processing head 1, a first end of the gas passage 12 is used for being connected with an external gas source, and a second end of the gas passage 12 is located at a free end of the insertion part 11, so that when the insertion part 11 is inserted into the pipe fitting 100, gas is supplied into the pipe fitting 100 through the gas passage 12, and the pipe fitting 100 is expanded. Like this, in the in-process in inserting pipe fitting 100 at grafting portion 11, the sealing section 111 of grafting portion 11 can expand the pipe wall of pipe fitting 100 to make sealing section 111 closely cooperate with the inner wall of pipe fitting 100, play reliable sealed effect, at this moment, rethread gas channel 12 is to the inside air feed of pipe fitting 100, can realize carrying out the purpose of expand tube to pipe fitting 100. Compared with the existing mechanical tube expansion equipment, the tube processing device adopting the tube expansion mode can effectively simplify the structure of the equipment on the basis of ensuring the tube expansion effect, is favorable for reducing the equipment cost, and solves the problem of complex structure of the tube expansion equipment in the prior art.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pipe machining device, characterized in that it comprises a machining head (1), said machining head (1) comprising an insertion part (11) for insertion inside a pipe (100), said insertion part (11) comprising a sealing section (111); the cross-sectional area of the sealing section (111) is gradually reduced along the direction towards the free end of the insertion part (11) so as to expand the pipe wall of the pipe fitting (100) through the outer wall of the sealing section (111) when the sealing section (111) is inserted into the pipe fitting (100);
the inside of processing head (1) is equipped with gas passage (12), gas passage (12) run through processing head (1) sets up, the first end of gas passage (12) is used for being connected with outside air supply, the second end of gas passage (12) is located the free end of grafting portion (11), with grafting portion (11) insert when pipe fitting (100) are inside, through gas passage (12) to air feed in pipe fitting (100), in order to be right pipe fitting (100) expand the pipe.
2. A pipe machining device as claimed in claim 1, characterized in that the socket (11) comprises a flared section (112), the flared section (112) being located on a side of the sealing section (111) remote from a free end of the socket (11); the cross-sectional area of the flared section (112) is not less than the maximum cross-sectional area of the sealing section (111).
3. A pipe machining device according to claim 2, characterized in that the surface of the sealing section (111) is a conical surface and the surface of the flared section (112) is a cylindrical surface.
4. A pipe machining device according to claim 2 or 3, characterized in that the spigot (11) comprises a transition section (113), the transition section (113) being located between the sealing section (111) and the flared section (112); the surface of the transition section (113) is an arc-shaped surface, and the arc-shaped surface extends to the surface of the sealing section (111) and the surface of the flaring section (112).
5. A pipe machining device according to claim 1, characterized in that the machining heads (1) are plural, and the pipe machining device comprises a mounting base (2), and a plurality of machining heads (1) are mounted on the mounting base (2) so as to bring the plurality of machining heads (1) closer to or farther away from the pipe (100) through the mounting base (2).
6. A pipe machining device according to claim 5, characterized in that the pipe (100) is a U-shaped pipe, and a plurality of machining heads (1) are provided in pairs two by two to expand the U-shaped pipe by inserting the insertion parts (11) of the two machining heads (1) provided in pairs into the two mouths of the U-shaped pipe, respectively.
7. A pipe machining device according to claim 5, characterized in that the mounting seat (2) is provided with a threaded through hole (21); the machining head (1) comprises a connecting section (13), external threads are arranged on the outer wall of the connecting section (13), and the connecting section (13) is matched with the threaded through hole (21); the gas channel (12) extends to the end of the connecting section (13).
8. Pipe machining device according to claim 1, characterized in that it comprises a positioning socket (3), said positioning socket (3) being provided with a positioning through hole (31) for the pipe (100) to pass through.
9. A pipe machining device according to claim 8, characterized in that the positioning through hole (31) comprises a main body hole section (311) and a guide hole section (312) which are communicated with each other, and the diameter of the guide hole section (312) is gradually reduced in a direction approaching the main body hole section (311) so that the insertion part (11) is inserted into the main body hole section (311) through the guide hole section (312).
10. A tube expander for expanding a tube (100) of a heat exchanger (10), characterized in that it comprises:
a fixing device for fixing the heat exchanger (10);
a pipe machining device according to any one of claims 1 to 9;
a drive device connected to the pipe machining device for driving the insertion of the machining head (1) into the pipe (100) or the extraction from the pipe (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105095.5A CN112275883A (en) | 2020-10-15 | 2020-10-15 | Pipe fitting machining device and pipe expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011105095.5A CN112275883A (en) | 2020-10-15 | 2020-10-15 | Pipe fitting machining device and pipe expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112275883A true CN112275883A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011105095.5A Pending CN112275883A (en) | 2020-10-15 | 2020-10-15 | Pipe fitting machining device and pipe expander |
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| Country | Link |
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| CN (1) | CN112275883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664072A (en) * | 2021-08-27 | 2021-11-19 | 珠海格力智能装备有限公司 | Shaping device and heat exchanger production line |
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| CN111001717A (en) * | 2020-01-15 | 2020-04-14 | 桂林电子科技大学 | Sealing and flaring integrated structure for fluid pressure expansion joint of heat exchange tube |
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2020
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| CN101722242A (en) * | 2008-10-17 | 2010-06-09 | 铜联商务咨询（上海）有限公司 | Non-contraction tube expanding equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664072A (en) * | 2021-08-27 | 2021-11-19 | 珠海格力智能装备有限公司 | Shaping device and heat exchanger production line |
| CN113664072B (en) * | 2021-08-27 | 2023-08-25 | 珠海格力智能装备有限公司 | Shaping device and heat exchanger production line |
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Application publication date: 20210129 |