CN216371070U - Clamping device for automatic positioning of finish turning of pipe forging - Google Patents
Clamping device for automatic positioning of finish turning of pipe forging Download PDFInfo
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- CN216371070U CN216371070U CN202121634206.1U CN202121634206U CN216371070U CN 216371070 U CN216371070 U CN 216371070U CN 202121634206 U CN202121634206 U CN 202121634206U CN 216371070 U CN216371070 U CN 216371070U
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- expansion sleeve
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Abstract
The utility model discloses a clamping device for the finish turning and automatic positioning of pipe forgings, which comprises: the expansion sleeve comprises a plurality of expansion sleeve split bodies, the expansion sleeve split bodies are longitudinally provided with arc-shaped grooves on the outer side wall, and the inner side wall is provided with a conical cambered surface; the plurality of expansion sleeve split arc-shaped grooves are combined to form an annular groove, and the spring ring is arranged in the annular groove; the expansion sleeve is characterized in that conical cambered surfaces of a plurality of expansion sleeve split bodies are combined to form a conical through hole, a first opening and a second opening of the conical through hole are respectively positioned at two ends of the expansion sleeve, and the diameter of the first opening is larger than that of the second opening; the outer wall surface of the plug is conical, the diameter of the first end of the plug is larger than that of the second end, and a threaded hole is formed in the end part of the second end; the plug is sleeved in the conical through hole of the expansion sleeve, the second end is positioned at the outer side of the second opening, and the screw penetrates through the gasket and is connected to the threaded hole. The utility model can improve the clamping efficiency and the processing quality in the finish machining process of the pipe forging.
Description
Technical Field
The utility model relates to a tool for processing pipe workpieces, in particular to a clamping device for finish turning and automatic positioning of pipe forgings.
Background
The production process flow of the pipe forging is as follows: smelting, forging, rough turning, drilling and finish turning. Wherein finish turning process dress card adopts the lathe top directly to withstand the work piece hole, then carries out the alignment through the mode of manual adjustment, but the alignment is accomplished the rear and can finish turning pipe class forging excircle, and because of the mode inefficiency of manual alignment, has restricted machining efficiency.
The research shows that the reasons for the alignment of the existing card loading mode are mainly as follows:
1. the end face of the forging is blanked by sawing, so that the verticality cannot be guaranteed;
2. when the inner hole of the pipe forging is machined in the drilling process, the port of the inner hole can shake in the processes of feeding and discharging, and the roundness of the port of the end face of the forging is irregular.
Due to the reasons, the lathe center directly props against the opening part of the forge piece, the center of the forge piece cannot be guaranteed to be located at the center of the forge piece, manual repeated alignment is needed, and the clamping efficiency is low.
Therefore, the clamping device for the finish turning automatic positioning of the pipe forging is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a clamping device for automatic positioning of finish turning of a pipe forging, which can improve clamping efficiency and machining quality in the finish machining process of the pipe forging.
The technical scheme is as follows:
a dress card device that is used for pipe class forging finish turning automatic positioning includes: the expansion sleeve comprises a plurality of expansion sleeve split bodies, the expansion sleeve split bodies are longitudinally provided with arc-shaped grooves on the outer side wall, and the inner side wall is provided with a conical cambered surface; the plurality of expansion sleeve split arc-shaped grooves are combined to form an annular groove, and the spring ring is arranged in the annular groove; the expansion sleeve is characterized in that conical cambered surfaces of a plurality of expansion sleeve split bodies are combined to form a conical through hole, a first opening and a second opening of the conical through hole are respectively positioned at two ends of the expansion sleeve, and the diameter of the first opening is larger than that of the second opening; the outer wall surface of the plug is conical, the diameter of the first end of the plug is larger than that of the second end, and a threaded hole is formed in the end part of the second end; the plug is sleeved in the conical through hole of the expansion sleeve, the second end is positioned on the outer side of the second opening, and the screw penetrates through the gasket to be connected to the threaded hole so as to fix the gasket on the end part of the plug.
Furthermore, expansion sleeve flange split bodies are arranged at the edges of the end parts of the expansion sleeve split bodies, and after the expansion sleeves are combined by a plurality of expansion sleeve split bodies, expansion sleeve flanges are formed on the outer sides of the first openings by the plurality of expansion sleeve flange split bodies; the first end is provided with a plug flange, and the plug flange is positioned on the outer side of the expansion sleeve flange.
Furthermore, the shape of the outer wall surface of the plug is matched with the shape of the conical through hole of the expansion sleeve.
Further, the outer diameter of the washer is larger than the diameter of the second opening.
Furthermore, a conical inner hole is formed in the end face of the first end.
Furthermore, a connecting through hole is arranged between the threaded hole and the conical inner hole.
Furthermore, an inner groove is arranged on the inner wall surface of the conical inner hole.
Furthermore, the expansion sleeve comprises a plurality of expansion sleeve split bodies with the same shape, and after the expansion sleeve split bodies are closed, the outer diameter of the gasket is larger than the diameter of the second opening.
In order to achieve the purpose, the utility model provides the following technical scheme:
the pipe forging end fixing device is simple in structure, convenient to manufacture, easy to use and operate, and capable of quickly fixing the end of a pipe forging, and greatly improves clamping efficiency and machining quality in the pipe forging finish machining process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a clamping device for finish turning and automatic positioning of a pipe forging in the utility model;
FIG. 2 is a cross-sectional view of a clamping device for finish turning automatic positioning of a pipe forging in the utility model;
FIG. 3 is a right side view of the clamping device for the automatic positioning of the pipe forging finish turning in the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
After the pipe forging is drilled, although the section size of the opening part is irregular, the inner hole is still a standard circle, so that the pipe forging inner hole drilling tool is designed to be used as a special plug tool, and the inner hole of the pipe forging is used for alignment, so that quick clamping is realized, and the lathe machining is facilitated.
As shown in fig. 1, the structure of the clamping device for the finish turning automatic positioning of the pipe forging is schematically shown in the utility model; FIG. 2 is a cross-sectional view of a clamping device for finish turning automatic positioning of a pipe forging in the utility model; fig. 3 is a right side view of the clamping device for the automatic positioning of the finish turning of the pipe forging in the utility model.
A dress card device that is used for pipe class forging finish turning automatic positioning includes: the expansion sleeve 1, the plug 2, the spring ring 3, the washer 4 and the screw 5.
The expansion sleeve 1 comprises a plurality of expansion sleeve split bodies 11, the expansion sleeve split bodies 11 are longitudinally provided with arc-shaped grooves on the outer side wall and transversely provided with conical arc surfaces on the inner side wall, the arc-shaped grooves of the expansion sleeve split bodies 11 are combined to form annular grooves, and the spring ring 3 is arranged in the annular grooves; the conical cambered surfaces of the expansion sleeve split bodies 11 are combined to form a conical through hole, a first opening and a second opening of the conical through hole are respectively positioned at two ends of the expansion sleeve 1, and the diameter of the first opening is larger than that of the second opening.
In the preferred embodiment, the expansion sleeve 1 comprises three expansion sleeve split bodies 11 with the same shape. When the expansion sleeve split bodies 11 are machined, the expansion sleeve workpiece is sawn into three expansion sleeve split bodies 11 at equal intervals along the axial direction, and the sawing quantity is smaller than 2 mm.
The expansion sleeve split body 11 is provided with an expansion sleeve flange split body at the edge of the end part, and after the expansion sleeve split bodies are combined into the expansion sleeve 1, the expansion sleeve flange 12 is formed on the outer side of the first opening by the expansion sleeve flange split bodies; the expansion sleeve flange 12 is located outside the first opening. The expansion sleeve flange 12 is annular, the outer diameter is 100mm, and the expansion sleeve flange 12 is used for abutting against the end part of an inner hole of a pipe forging to play a positioning role.
The outer wall surface of the plug 2 is conical, and the diameter of the first end of the plug 2 is larger than that of the second end; the end of the second end is provided with a threaded hole, and the first end is provided with a plug flange 21.
The shape of the outer wall surface of the plug 2 is adapted to the shape of the conical through hole of the expansion sleeve 1, the plug 2 is sleeved in the conical through hole of the expansion sleeve 1, and the second end is positioned on the outer side of the second opening. A screw 5 is attached to the threaded bore through the washer 4 to secure the washer 4 to the end of the plug 2. After the plurality of expansion sleeve split bodies 11 are closed, the outer diameter of the gasket 4 is larger than that of the second opening.
For a better fit with the lathe centre, a conical bore 22 is provided in the end face of the first end head, the shape of the conical bore 22 corresponding to the shape of the end of the lathe centre.
To reduce the weight of the plug 2, a connecting through hole 23 may be provided between the threaded bore and the tapered bore 22.
In order to increase the frictional force between the tapered bore and the lathe center, an inner groove 24 is provided on the inner wall surface of the tapered bore 22, and the lathe center is pressed against the tapered bore 22 and then the frictional force is increased by the inner groove 24.
When processing the pipe forging, the two ends of the inner hole of the pipe forging are respectively arranged in the clamping devices, and the expansion sleeve flange 12 is pressed at the end part of the inner hole; the lathe center props against the conical inner hole 22 of the plug 2, the plug 2 is extruded towards one side of the expansion sleeve flange 12, the outer wall surface of the plug 2 slides in the conical through hole of the expansion sleeve 1, and the expansion sleeve split bodies 11 are expanded; the outer wall of the expansion sleeve split body 11 compresses the inner wall of the inner hole and is tightly attached and locked; the center of the lathe automatically becomes the axial center of the forge piece, and the center of the lathe drives the clamping device and the pipe forge piece to rotate, so that the outer wall of the pipe forge piece can be machined. After the lathe center leaves the conical inner hole 22, the spring ring 3 contracts, the expansion sleeve split bodies 11 contract, and the outer diameter of the expanded sleeve 1 is smaller than the diameter of the inner hole after contraction; along with the contraction of the expansion sleeve split bodies 11, the plug 2 moves outwards, the gasket 4 is pressed on the outer side of the second opening of the expansion sleeve 1, the plug 2 is prevented from falling, and the clamping device is taken down.
The terminology used herein is for the purpose of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (8)
1. The utility model provides a dress card device that is used for pipe class forging finish turning automatic positioning which characterized in that includes: the expansion sleeve comprises a plurality of expansion sleeve split bodies, the expansion sleeve split bodies are longitudinally provided with arc-shaped grooves on the outer side wall, and the inner side wall is provided with a conical cambered surface; the plurality of expansion sleeve split arc-shaped grooves are combined to form an annular groove, and the spring ring is arranged in the annular groove; the expansion sleeve is characterized in that conical cambered surfaces of a plurality of expansion sleeve split bodies are combined to form a conical through hole, a first opening and a second opening of the conical through hole are respectively positioned at two ends of the expansion sleeve, and the diameter of the first opening is larger than that of the second opening; the outer wall surface of the plug is conical, the diameter of the first end of the plug is larger than that of the second end, and a threaded hole is formed in the end part of the second end; the plug is sleeved in the conical through hole of the expansion sleeve, the second end is positioned on the outer side of the second opening, and the screw penetrates through the gasket to be connected to the threaded hole so as to fix the gasket on the end part of the plug.
2. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 1, wherein the expansion sleeve split bodies are provided with expansion sleeve flange split bodies at the end edges, and after the expansion sleeves are combined by a plurality of expansion sleeve split bodies, the expansion sleeve flange is formed by the plurality of expansion sleeve flange split bodies at the outer side of the first opening; the first end is provided with a plug flange, and the plug flange is positioned on the outer side of the expansion sleeve flange.
3. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 1, wherein the shape of the outer wall surface of the plug is adapted to the shape of the tapered through hole of the expansion sleeve.
4. The apparatus of claim 1, wherein the outer diameter of the washer is larger than the diameter of the second opening.
5. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 1, wherein a tapered inner hole is formed on the end face of the first end head.
6. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 5, wherein a connecting through hole is arranged between the threaded hole and the conical inner hole.
7. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 6, wherein an inner groove is arranged on the inner wall surface of the conical inner hole.
8. The clamping device for the finish turning automatic positioning of the pipe forging as claimed in claim 1, wherein the expansion sleeve comprises a plurality of expansion sleeve split bodies with the same shape, and after the expansion sleeve split bodies are closed, the outer diameter of the gasket is larger than the diameter of the second opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634206.1U CN216371070U (en) | 2021-07-16 | 2021-07-16 | Clamping device for automatic positioning of finish turning of pipe forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634206.1U CN216371070U (en) | 2021-07-16 | 2021-07-16 | Clamping device for automatic positioning of finish turning of pipe forging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216371070U true CN216371070U (en) | 2022-04-26 |
Family
ID=81217092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121634206.1U Active CN216371070U (en) | 2021-07-16 | 2021-07-16 | Clamping device for automatic positioning of finish turning of pipe forging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216371070U (en) |
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2021
- 2021-07-16 CN CN202121634206.1U patent/CN216371070U/en active Active
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