CN215431204U - Pipe end finishing machine capable of realizing pipe end flaring - Google Patents
Pipe end finishing machine capable of realizing pipe end flaring Download PDFInfo
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- CN215431204U CN215431204U CN202120287086.6U CN202120287086U CN215431204U CN 215431204 U CN215431204 U CN 215431204U CN 202120287086 U CN202120287086 U CN 202120287086U CN 215431204 U CN215431204 U CN 215431204U
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- flaring
- expanding
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Abstract
The utility model relates to a pipe end finishing machine capable of realizing pipe end flaring, which comprises a main frame, wherein a hydraulic power system and a flaring tool are arranged on the main frame, the hydraulic power system provides power for the flaring tool, the hydraulic power system comprises a hydraulic station (7), an oil cylinder (1) and an oil cylinder piston rod (2), the flaring tool comprises a flaring pull rod (3'), the diameter-expanding device comprises a diameter-expanding outer sleeve (4 '), a diameter-expanding guide ring (5') and diameter-expanding clamping jaws (6 '), wherein the diameter-expanding guide ring (5') is arranged in a central hole of the diameter-expanding outer sleeve (4 '), the diameter-expanding clamping jaws (6') are arranged in a central hole of the diameter-expanding guide ring (5 '), the diameter-expanding clamping jaws (6') are formed by annularly surrounding multi-petal clamping blocks, a movable hole is formed by surrounding the multi-petal clamping blocks, a diameter-expanding pull rod (3 ') is arranged in the movable hole, and the diameter-expanding clamping jaws (6') are outwards expanded when the diameter-expanding pull rod moves along the axial direction of the movable hole and in the moving process. The flaring machining efficiency is higher, and the repeatability is better.
Description
Technical Field
The utility model relates to a special pipe end finishing machine for pipe end flaring.
Background
According to relevant industrial standards, the ovality, wall thickness deviation and outer diameter deviation value of the end part of a pipe are strictly required before the oil well pipe product leaves a factory, when the end part of the oil well pipe is threaded, the ovality of the end part has a great influence on the yield, and unqualified products such as black buttons are easily generated due to overlarge errors of the ovality of a steel pipe, so that the rejection rate of turning threads is high.
At present, most steel pipe production enterprises are equipped with steel pipe necking/necking processing lines to meet the pipe end precision requirement under the general condition, but for certain direct-connection products, internal and external threads are processed at the pipe end. When machining internal threads, the outer diameter of the pipe end is required to be more than 5% larger than the nominal outer diameter of the steel pipe, and the machining can be realized only by flaring the pipe end. The special capital investment for establishing the flaring production line consumes a large amount of capital, occupies a field, and generates a large amount of cost for later maintenance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pipe end finishing machine capable of realizing pipe end flaring, which is used for realizing the expanding of a pipe opening of a steel pipe.
The technical scheme adopted by the utility model for solving the problems is as follows: the pipe end finishing machine capable of realizing pipe end flaring comprises a main frame, wherein a hydraulic power system and a flaring tool are installed on the main frame, the hydraulic power system provides power for the flaring tool, the hydraulic power system comprises a hydraulic station, an oil cylinder and an oil cylinder piston rod, the flaring tool comprises a flaring pull rod, a flaring outer sleeve, a flaring guide ring and a flaring clamping jaw, the flaring guide ring is arranged in a central hole of the flaring outer sleeve, the flaring clamping jaw is arranged in the central hole of the flaring guide ring, the flaring clamping jaw is formed by annularly surrounding multi-petal clamping blocks, a movable hole is surrounded by the multi-petal clamping blocks, the flaring pull rod is arranged in the movable hole, and the flaring pull rod is connected with the oil cylinder piston rod and can outwards strut the flaring clamping jaw along the axial displacement of the movable hole in the displacement process.
Preferably, the main body of the flaring tool is fixedly connected with the oil cylinder through a long connecting rod, the number of the long connecting rods is multiple, and the annular connecting rods are uniformly arranged between the main body of the flaring tool and the oil cylinder. The assembly strength is ensured, and the requirements of flaring machining are integrally met.
Preferably, the diameter expanding pull rod is in threaded connection with the oil cylinder piston rod and is provided with a butting step surface for realizing positioning connection.
Preferably, the movable hole is a tapered hole, the diameter-expanding pull rod is provided with a conical surface, the diameter-expanding pull rod is matched with the diameter-expanding clamping jaws through the conical surface, the taper is 3-20 degrees, when the stroke of the diameter-expanding pull rod is fixed, the corresponding radial expansion amount is large if the taper is large.
Preferably, the diameter expanding clamping jaw is provided with an exposed outer edge surface, the outer edge surface is a circular ring surface or a conical surface and is used for supporting the inner wall of the steel pipe, the taper of the outer edge surface is 0-20 degrees, the axial length is 10-400 mm, and the diameter expanding clamping jaw can be determined according to requirements.
Compared with the prior art, the utility model has the advantages that: the utility model provides a pipe end finishing machine which mainly realizes flaring of the end part of a steel pipe, and has higher processing efficiency and better processing repeatability.
Drawings
FIG. 1 is a schematic overall view of a finishing machine for pipe end flaring of the present invention;
FIG. 2 is an axial cross-sectional view of the pipe end finishing machine flaring tool of the present invention;
FIG. 3 is an external view of the pipe end finishing machine flaring tool of the present invention;
in the figure: 1. the hydraulic cylinder comprises an oil cylinder 2, an oil cylinder piston rod, a diameter expansion pull rod 3 ', a diameter expansion outer sleeve 5 ', a diameter expansion guide ring 6 ', a diameter expansion clamping jaw 7 and a hydraulic station.
Detailed Description
The present invention will be described in further detail below with reference to the attached drawings, which are illustrative and are not to be construed as limiting the utility model. The description of the present embodiment is corresponding to the accompanying drawings, and the description related to the orientation is also based on the description of the accompanying drawings, and should not be construed as limiting the scope of the present invention.
As shown in fig. 1, the present embodiment relates to a pipe end finishing machine for realizing pipe end flaring, which includes a main frame, a hydraulic power system is installed on the main frame, the hydraulic power system provides power for a flaring tool for flaring processing, the flaring tool is installed on the main frame, and the flaring tool can be installed simultaneously, installed separately, or replaced and modified mutually.
Specifically, the hydraulic power system comprises a hydraulic station 7, an oil cylinder 1 and an oil cylinder piston rod 2.
Specifically, the flaring tool comprises a flaring pull rod 3 ', a flaring outer sleeve 4', a flaring guide ring 5 'and a flaring clamping jaw (6'), the flaring guide ring 5 'is arranged in the central hole of the flaring outer sleeve 4', the flaring clamping jaw 6 'is arranged in the central hole of the flaring guide ring 5', an annular gap is reserved between the central hole of the diameter expansion guide ring 5 'and the diameter expansion clamping jaws 6' to provide space for diameter expansion of the diameter expansion clamping jaws 6 ', the diameter expansion clamping jaws 6' are formed by annularly surrounding multi-petal clamping blocks, movable holes are surrounded by the multi-petal clamping blocks, the diameter expansion pull rod 3 'is arranged in the movable holes, the diameter expansion pull rod 3' is connected with the oil cylinder piston rod 2 through threads, and is provided with a butting step surface to realize positioning connection, when the oil cylinder piston rod 2 pulls the expanding pull rod 3 ', the expanding pull rod 3 ' moves in the axial direction of the movable hole and outwards expands the expanding claws 6 ' in the moving process. The main part of flaring frock is connected fixedly through a plurality of hoop evenly arranged's stay bolts and hydro-cylinder 1, guarantees its assembly strength, wholly satisfies the flaring processing demand.
During expanding, the oil cylinder piston rod 2 pulls the expanding pull rod 3 'to move inwards, at the moment, the expanding clamping jaws 6' are extruded at the position of a combined conical surface with the expanding pull rod 3 ', the multi-piece clamping blocks of the expanding clamping jaws 6' expand outwards along the radial direction, and the multi-piece clamping blocks slide outwards along the radial direction between the expanding guide ring 5 'and the expanding outer sleeve 4'. At this time, the outer diameter of the contact surface between the outer edge surface of the diameter expansion jaw 6' and the inner wall of the steel pipe is expanded, and the end of the steel pipe is expanded outward to complete the flaring process. The diameter-expanding pull rod 3 ' and the diameter-expanding claw 6 ' designed in the embodiment have a matching conical surface of 9 degrees, the outer edge surface of the diameter-expanding claw 6 ' is in surface contact with the inner wall of the steel pipe, namely the outer edge surface is a standard annular surface, and the axial length of the outer edge surface is 200 mm.
In addition to the above embodiments, the present invention also includes other embodiments, and any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a can realize pipe end finishing machine of pipe end flaring which characterized in that: the flaring device comprises a main frame, wherein a hydraulic power system and a flaring tool are installed on the main frame, the hydraulic power system supplies power to the flaring tool, the hydraulic power system comprises a hydraulic station (7), an oil cylinder (1) and an oil cylinder piston rod (2), the flaring tool comprises a flaring pull rod (3 '), a flaring outer sleeve (4'), a flaring guide ring (5 ') and a flaring clamping jaw (6'), the flaring guide ring (5 ') is arranged in a central hole of the flaring outer sleeve (4'), the flaring clamping jaw (6 ') is arranged in the central hole of the flaring guide ring (5'), the flaring clamping jaw (6 ') is formed by annularly surrounding a plurality of clamping blocks, a movable hole is formed by surrounding the plurality of clamping blocks, the flaring pull rod (3') is arranged in the movable hole, and the flaring pull rod is connected with the oil cylinder piston rod (2) to be capable of axially displacing along the movable hole and outwardly propping open the flaring clamping jaw in the displacement process A claw (6').
2. The tube end finishing machine capable of achieving tube end flaring of claim 1, wherein: the main body of the flaring tool is fixedly connected with the oil cylinder (1) through a long connecting rod.
3. The tube end finishing machine capable of achieving tube end flaring of claim 2, wherein: the number of the long connecting rods is multiple, and the long connecting rods are uniformly arranged between the main body of the flaring tool and the oil cylinder (1) in the circumferential direction.
4. The tube end finishing machine capable of achieving tube end flaring of claim 2, wherein: the diameter expanding pull rod (3') is in threaded connection with the oil cylinder piston rod (2) and is provided with a butting step surface to realize positioning connection.
5. The tube end finishing machine capable of achieving tube end flaring of claim 1, wherein: the movable hole is a tapered hole, the expanding pull rod (3 ') is provided with a conical surface, the expanding pull rod (3 ') and the expanding clamping jaw (6 ') are matched through the conical surface, and the taper is 3-20 degrees.
6. The tube end finishing machine capable of achieving tube end flaring of claim 1, wherein: the diameter expanding clamping jaw (6') is provided with an exposed outer edge surface, the outer edge surface is a circular ring surface or a conical surface and is used for supporting the inner wall of the steel pipe, the taper of the outer edge surface is 0-20 degrees, and the axial length is 10-400 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120287086.6U CN215431204U (en) | 2021-02-02 | 2021-02-02 | Pipe end finishing machine capable of realizing pipe end flaring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120287086.6U CN215431204U (en) | 2021-02-02 | 2021-02-02 | Pipe end finishing machine capable of realizing pipe end flaring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215431204U true CN215431204U (en) | 2022-01-07 |
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ID=79701452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120287086.6U Active CN215431204U (en) | 2021-02-02 | 2021-02-02 | Pipe end finishing machine capable of realizing pipe end flaring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215431204U (en) |
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2021
- 2021-02-02 CN CN202120287086.6U patent/CN215431204U/en active Active
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