CN220497473U - Steel pipe expanding device - Google Patents
Steel pipe expanding device Download PDFInfo
- Publication number
- CN220497473U CN220497473U CN202321104260.4U CN202321104260U CN220497473U CN 220497473 U CN220497473 U CN 220497473U CN 202321104260 U CN202321104260 U CN 202321104260U CN 220497473 U CN220497473 U CN 220497473U
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- steel pipe
- expanding
- expanding device
- head
- pipe expanding
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 95
- 239000010959 steel Substances 0.000 title claims abstract description 95
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model provides a steel pipe expanding device, which comprises a steel pipe expanding device: the steel pipe expanding device comprises a steel pipe expanding device body, and is characterized in that one end of the steel pipe expanding device body is provided with a fixed back, an insertion chute is formed in the fixed back, an expanding head is arranged at the head of an expanding rod, the expanding head is connected with an expanding rod through threads, an expanding rod foot block is arranged at the bottom of the expanding rod, a limiting block is arranged on the side edge of the expanding rod foot block, a supporting sliding block is arranged on the side edge of the expanding head, a surrounding coil is arranged at the other end of the steel pipe expanding device body, a fixed small wheel is arranged on a steel pipe expanding device platform, and a control screen is arranged on the steel pipe expanding device platform; the steel pipe expanding device heats the steel pipe to be expanded by using the surrounding coil, then expands the diameter from the inside of the steel pipe through the expanding head, and after the heat expansion, the steel pipe material is uniform in structure, finer in crystal grain and good in mechanical property.
Description
Technical Field
The utility model relates to the technical field of material processing, in particular to a steel pipe expanding device.
Background
The expanding (bulging) step is a processing method for expanding a hollow part or a pipe blank having a smaller diameter in the radial direction by stretching the material. The expansion is one of metallurgical terms, and is a pressure processing technology for expanding and forming the steel pipe radially outwards by applying force from the inner wall of the steel pipe in a hydraulic or mechanical mode, and the expansion technology comprises two modes of hot expansion and cold expansion. After cold expansion, the diameters of the pipe body and the pipe ends of the steel pipe are increased by about 1%, the diameters, the roundness and the diameter difference of the two ends of the steel pipe are greatly improved, the straightness of the steel pipe is greatly improved, the length of the steel pipe is shortened by about 0.5%, and the wall thickness is reduced by about 0.8%. The width, length and thickness of the plate for pipe making and the outer diameter of the steel pipe before expanding are determined by fully considering the changes in the process of preparation, so that the geometric dimension of the steel pipe after expanding does not meet the final requirement and is not qualified.
Chinese patent application number CN202220230720.7 discloses a novel steel pipe flaring machine, comprising a base, a portal frame, a hydraulic mechanism and a flaring mechanism, wherein the flaring mechanism is connected with the hydraulic mechanism; the hydraulic mechanism comprises a mounting frame which is vertically and slidably connected with the portal frame, a main oil cylinder arranged on one side of the mounting frame, an oil cylinder main shaft connected with the main oil cylinder and a pull rod connected with the oil cylinder main shaft, wherein a sliding seat is connected on the pull rod and connected with the mounting frame, the top end of the sliding seat is in threaded connection with an adjusting screw rod, and the adjusting screw rod is fixed on an upper support at the top end of the portal frame; the expanding mechanism comprises a supporting disc connected with the sliding seat, a diameter expanding module group arranged on the radial direction of the supporting disc and a multi-pyramid body matched with the diameter expanding module group, and the multi-pyramid body is connected with the pull rod. The steel pipe flaring machine comprises a supporting disc connected with the sliding seat, a diameter expansion module group arranged on the radial direction of the supporting disc and a multi-pyramid body matched with the diameter expansion module group, wherein the multi-pyramid body is connected with the pull rod, a plurality of inclined planes are arranged on the multi-pyramid body, each inclined plane on the multi-pyramid body corresponds to the diameter expansion module group to form sliding fit, and the diameter expansion module group on the supporting disc is driven to expand and move outwards along the radial direction of the supporting disc by starting the return cylinder, so that the circumference formed by the diameter expansion module group is increased, and the inner diameter of the steel pipe is enlarged.
The novel steel pipe flaring machine has some defects: firstly, the steel pipe flaring machine is a cold diameter expansion process, the requirements on the width, the length and the thickness of a pipe making plate material and the outer diameter of a steel pipe before diameter expansion are strict, and if the standard is not controlled, the steel pipe is extremely easy to damage during processing, so that the processed steel pipe becomes a defective product; secondly, gaps are formed when the multi-pyramid body expands outwards, and the steel pipe at the gaps presents larger tensile stress, so that the stress state of the internal structure of the steel pipe is changed, and the service life of the formed steel pipe is not facilitated. Therefore, the steel pipe expanding device effectively solves the technical defects of the device.
Disclosure of Invention
The utility model aims to provide a steel pipe expanding device for solving the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions:
the steel pipe expanding device is characterized by comprising the steel pipe expanding device: the steel pipe expanding device comprises a steel pipe expanding device body, and is characterized in that one end of the steel pipe expanding device body is provided with a fixed back, an inserting chute is formed in the fixed back, an extension rod head is provided with an expanding head, the expanding head is connected with an extension rod through threads, an extension rod foot block is arranged at the bottom of the extension rod, a limiting block is arranged on the side edge of the extension rod foot block, a supporting sliding block is arranged on the side edge of the expanding head, a surrounding coil is arranged at the other end of the steel pipe expanding device body, a fixed small wheel is arranged on a steel pipe expanding device platform, and a control screen is arranged on the steel pipe expanding device platform.
As a further technical scheme of the utility model, the fixed back support is arranged at one end of the steel pipe expanding device, the insertion chute is arranged at one side of the fixed back support facing the steel pipe processing, and the chute size is matched with the size of the foot block of the extension rod.
As a further technical scheme of the utility model, the expanding head is arranged at the head part of the extension rod, the extension rod is connected with the expanding head through threads and can replace the expanding heads with different outer diameters, and the foot block of the extension rod is arranged at the end part of the other side of the extension rod.
As a further technical scheme of the utility model, the limiting block is arranged on the side edge of the extension rod foot block and can adjust the height of the extension rod foot block, and the supporting sliding block is arranged on the side edge of the expanding head and can support the weight of the expanding head and the extension rod.
As a further technical scheme of the utility model, the surrounding coil is arranged at the other end of the steel pipe expanding device, and the steel pipe with the middle hollow and to-be-expanded diameter can pass through the surrounding coil.
As a further technical scheme of the utility model, the fixed small wheels are arranged on the steel pipe expanding device platform in a through length and interval mode, and the control screen is arranged on the steel pipe expanding device platform.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model adopts the thermal expansion process, so that the mechanical property of the steel pipe after the expansion is more stable, the efficiency of the expansion is higher after the steel pipe is heated by adopting an electromagnetic induction mode, the equipment weight is light, the investment is less, and the tool replacement is simple and convenient.
2. The utility model can be adjusted according to the different diameters of the expanded steel pipes, is suitable for the expanding requirements of the steel pipes with different diameters and the special-shaped steel pipes, and has wide applicability and low production cost.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic side elevational view of the present utility model;
FIG. 2 is a schematic view of the expanding head structure of the present utility model;
FIG. 3 is a schematic view of the structure of the fixed back support of the present utility model;
in the figure: 1. a steel pipe expanding device; 2. an extension rod; 201. an elongated pole foot; 202. a limiting block; 203. a diameter expanding head; 204. a support slider; 205. a thread; 3. fixing a back support; 301. inserting into the chute; 4. surrounding the coil; 5. fixing the small wheel; 6. and (5) controlling a screen.
Description of the embodiments
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
The drawings in the embodiments of the utility model: the different kinds of cross-sectional lines in the drawings are not marked according to national standards, and the material of the elements is not required, so that the cross-sectional views of the elements in the drawings are distinguished.
Referring to fig. 1-3, a steel pipe expanding device is characterized by comprising a steel pipe expanding device 1: the steel pipe expanding device comprises a steel pipe expanding device body, and is characterized in that one end of the steel pipe expanding device body is provided with a fixed back support 3, an insertion chute 301 is arranged on the fixed back support 3, an expanding head 203 is arranged at the head of an extending rod 2, the expanding head 203 is connected with the extending rod 2 through threads 205, an extending rod foot block 201 is arranged at the bottom of the extending rod 2, a limiting block 202 is arranged on the side edge of the extending rod foot block 201, a supporting sliding block 204 is arranged on the side edge of the expanding head 203, a surrounding coil 4 is arranged at the other end of the steel pipe expanding device body 1, a fixed small wheel 5 is arranged on a steel pipe expanding device body 1 platform, and a control screen 6 is arranged on the steel pipe expanding device body 1 platform.
When expanding, the expanding head 203 is replaced with a target size, then the expanding head 203 is fixedly connected with the extension rod 2 through the threads 205, then the extension rod 2 with the expanding head 203 is placed on a platform of the steel pipe expanding device 1, the extension rod foot block 201 is placed in the insertion chute 301, the lifting height of the extension rod 2 is obtained by calculating the inner diameter of the target steel pipe, and then the height corresponding to the limiting block 202 and the supporting sliding block 204 is set, so that the expanding process of different diameter requirements is completed.
The supporting slider 204 is supported at the rear end of the expanding head 203, and the supporting slider 204 is pushed backwards along with the previous pushing of the expanded steel pipe, and the supporting point is also moved backwards along with the previous pushing of the expanded steel pipe, at this time, the gravity part of the expanding head 203 is transferred and born by the steel pipe, the supporting slider 204 moves backwards and supports part of the gravity of the extension rod 2 at the rear end, so that the effective support of the extension rod 2 with a cantilever structure is achieved, and the precision requirement of the expanding head 203 on the vertical surface is ensured.
When the steel pipe expanding device is used, firstly, the expanding head 203 is replaced with a target size, then the expanding head 203 is fixedly connected with the extending rod 2 through threads 205, then the extending rod 2 with the expanding head 203 is placed on a platform of the steel pipe expanding device 1, the extending rod foot block 201 is placed in the inserting chute 301, the lifting height of the extending rod 2 is obtained through calculating the inner diameter of a target steel pipe, then the height corresponding to the supporting slide block 204 is set, the expanding process of different diameter requirements is completed, then the surrounding coil 4 is electrified through the control screen 6 to enable the steel pipe to be heated so as to facilitate the subsequent expanding process through an electromagnetic induction principle, then forward thrust is applied to the rear end of the steel pipe, at this time, the front end of the steel pipe is heated and then is adjusted to the target inner diameter size in advance through the expanding head 203, at this time, the supporting slide block 204 is supported at the rear end of the expanding head 203, the supporting slide block 204 is pushed backwards along with the previous pushing of the steel pipe with the completed expanding, the supporting slide block 204 is also moved backwards along with the supporting point, the gravity of the expanding head 203 is transferred from the gravity part to the gravity of the supporting slide block 204, the gravity is transferred to the supporting end of the supporting slide block 2 through the supporting slide block, and the gravity is fixed to the rear end of the supporting slide block 2, and the supporting end of the supporting slide block is supported by the supporting slide block 2, the supporting end is supported by the supporting end 2, and the supporting end is supported by the supporting end of the supporting end 2, and the supporting end is supported end 2, and the supporting end is effectively supported by the supporting end 2.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (6)
1. The steel pipe expanding device is characterized by comprising a steel pipe expanding device (1): the steel pipe expanding device comprises a steel pipe expanding device body, and is characterized in that one end of the steel pipe expanding device body is provided with a fixed back support (3), an inserting chute (301) is formed in the fixed back support (3), an expanding head (203) is arranged at the head of an extending rod (2), the expanding head (203) is connected with the extending rod (2) through threads (205), an extending rod foot block (201) is arranged at the bottom of the extending rod (2), a limiting block (202) is arranged on the side edge of the extending rod foot block (201), a supporting sliding block (204) is arranged on the side edge of the expanding head (203), a surrounding coil (4) is arranged at the other end of the steel pipe expanding device body, a fixed small wheel (5) is arranged on a steel pipe expanding device body (1) platform, and a control screen (6) is arranged on the steel pipe expanding device body (1) platform.
2. A steel pipe expanding apparatus according to claim 1, wherein: the fixed back support (3) is arranged at one end of the steel pipe expanding device (1), the insertion chute (301) is arranged at one side of the fixed back support (3) facing the steel pipe processing, and the chute size is matched with the size of the extension rod foot block (201).
3. A steel pipe expanding apparatus according to claim 1, wherein: the expanding head (203) is arranged at the head part of the extension rod (2), the extension rod (2) is connected with the expanding head (203) through threads (205) and can be replaced by the expanding head (203) with different outer diameters, and the extension rod foot block (201) is arranged at the end part of the other side of the extension rod (2).
4. A steel pipe expanding apparatus according to claim 1, wherein: the limiting block (202) is arranged on the side edge of the extension rod foot block (201) and can adjust the height of the extension rod foot block (201), and the supporting sliding block (204) is arranged on the side edge of the expanding head (203) and can support the weight of the expanding head (203) and the extension rod (2).
5. A steel pipe expanding apparatus according to claim 1, wherein: the surrounding coil (4) is arranged at the other end of the steel pipe expanding device (1), and the middle part of the surrounding coil is hollow and the steel pipe to be expanded can pass through the surrounding coil.
6. A steel pipe expanding apparatus according to claim 1, wherein: the fixed small wheels (5) are arranged on the steel pipe expanding device (1) platform in a through length and interval mode, and the control screen (6) is arranged on the steel pipe expanding device (1) platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321104260.4U CN220497473U (en) | 2023-05-10 | 2023-05-10 | Steel pipe expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321104260.4U CN220497473U (en) | 2023-05-10 | 2023-05-10 | Steel pipe expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220497473U true CN220497473U (en) | 2024-02-20 |
Family
ID=89864990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321104260.4U Active CN220497473U (en) | 2023-05-10 | 2023-05-10 | Steel pipe expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220497473U (en) |
-
2023
- 2023-05-10 CN CN202321104260.4U patent/CN220497473U/en active Active
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