CN113634643B - Eccentric vibration progressive forming device for thin-wall pipe ends - Google Patents
Eccentric vibration progressive forming device for thin-wall pipe ends Download PDFInfo
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- CN113634643B CN113634643B CN202110871641.4A CN202110871641A CN113634643B CN 113634643 B CN113634643 B CN 113634643B CN 202110871641 A CN202110871641 A CN 202110871641A CN 113634643 B CN113634643 B CN 113634643B
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- eccentric
- lathe
- angular contact
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- shaft
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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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
- B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
- B21D19/046—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of tubular products
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an eccentric vibration incremental forming device for a thin-wall pipe end, which comprises an eccentric ball forming part, wherein the eccentric ball forming part comprises an eccentric tool shaft, one end of the eccentric tool shaft is connected with a step shaft, and the other end of the eccentric tool shaft is provided with an eccentric head corresponding to the thin-wall pipe end to be processed; the step shaft is provided with an angular contact ball bearing pair, an adjusting buffer assembly is further arranged between the angular contact ball bearing pair and the step shaft, the angular contact ball bearing pair is sleeved with a bearing sleeve group, one side of the bearing sleeve group, far away from the eccentric tool shaft, is connected with a lathe connecting piece, and the lathe connecting piece is used for connecting a lathe so as to enable the eccentric head to correspond to a thin-wall pipe end to be processed; under the condition that the lathe is started, the angular contact ball bearing pair is used for driving the eccentric ball head forming piece to vibrate eccentrically, so that the thin-wall pipe end to be processed is subjected to vibration flanging. The invention realizes the vibration of the forming tool on the metal pipe, and has the advantages of refining material grains, improving the plasticity and toughness of the material, along with convenient structure and strong practicability.
Description
Technical Field
The invention belongs to the technical field of plastic material forming, and particularly relates to an eccentric vibration progressive forming device for a thin-wall pipe end.
Background
At present, in the research of flanging forming outside (inside) of a metal pipe end, a forming tool mainly used is provided with a rotary wheel and a ball head metal rod, the rotary wheel has a rotation function, but the rotation of the rotary wheel is generally realized through a bearing, so that the diameter of the rotary wheel tool is larger, the contact area between the rotary wheel tool and a pipe is also increased, and the forming force is large; in the contact process of the ball head metal rod and the pipe, the ball head metal rod has no autorotation function, and sliding friction is generated when the ball head metal rod is contacted with the metal pipe, so that tangential force is increased, and the formed piece is easy to wrinkle. Therefore, in the flanging forming process of the outer (inner) edge of the metal pipe end, a plurality of forming tools are used at present, and due to the inherent characteristic of large deformation of the outer edge material of the pipe end, the internal grain structure of the material is easily damaged in the forming process, so that the phenomena of cracking, wrinkling and cracking are generated, and the quality and the precision of a formed part are reduced to a certain extent.
Disclosure of Invention
The invention aims to provide a thin-wall pipe end eccentric vibration incremental forming device, which solves the problems that the internal grain structure of a material is easily damaged in the current forming process, so that the quality and the precision of a formed part are not high.
The technical proposal adopted by the invention is that,
the eccentric vibration incremental forming device for the thin-wall pipe end comprises an eccentric ball forming piece, wherein the eccentric ball forming piece comprises an eccentric tool shaft, one end of the eccentric tool shaft is connected with a step shaft, and the other end of the eccentric tool shaft is provided with an eccentric head corresponding to the thin-wall pipe end to be processed; the step shaft is provided with an angular contact ball bearing pair, an adjusting buffer assembly is further arranged between the angular contact ball bearing pair and the step shaft, the angular contact ball bearing pair is sleeved with a bearing sleeve group, one side of the bearing sleeve group, far away from the eccentric tool shaft, is connected with a lathe connecting piece, and the lathe connecting piece is used for connecting a lathe so as to enable the eccentric head to correspond to a thin-wall pipe end to be processed; under the condition that the lathe is started, the angular contact ball bearing pair is used for driving the eccentric ball head forming piece to vibrate eccentrically, so that the thin-wall pipe end to be processed is subjected to vibration flanging.
The present invention is also characterized in that,
the adjusting buffer assembly comprises an adjusting ring arranged in the middle of the step shaft positioned in the pair of angular contact ball bearings and a shaft end check ring arranged between the step shaft positioned in the pair of angular contact ball bearings and the lathe connecting piece.
The eccentric tool shaft is a cylindrical rod, the eccentric head is hemispherical, and the radial tangential plane of the eccentric head is correspondingly connected with the radial tangential plane of the eccentric tool shaft.
The eccentric head, the eccentric tool shaft and the step shaft are of an integrated structure.
The bearing sleeve group comprises two bearing sleeves, and the two bearing sleeves are respectively and correspondingly arranged on two sides of the angular contact ball bearing pair.
Each bearing sleeve comprises a bearing sleeve base, an arc-shaped groove is formed in one side of the bearing sleeve base, at least two second mounting holes are correspondingly formed in two bearing sleeves, and a first mounting hole is formed in each bearing sleeve corresponding to a lathe connecting piece.
The lathe connecting piece comprises a cutter handle, one end of the cutter handle is used for being connected with a lathe, a fixed connecting seat is arranged at the other end of the cutter handle, and a plurality of positioning holes are formed in the fixed connecting seat corresponding to the first mounting holes.
The two bearing sleeves and the two bearing sleeves are connected with the lathe connecting piece through bolts.
The beneficial effects of the invention are as follows: according to the eccentric vibration incremental forming device for the thin-wall pipe end, through reasonable structural design, a vibration mode is adopted in processing, material grains can be thinned through vibration, and the plasticity and toughness of materials are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of an eccentric vibratory progressive forming apparatus for thin-walled pipe ends of the present invention;
FIG. 2 is a schematic diagram of the structure of an eccentric ball head forming part in a bearing housing in a thin-wall pipe end eccentric vibration incremental forming device;
FIG. 3 is a schematic view of the structure of a bearing housing in a thin-walled tube end eccentric vibratory progressive forming apparatus of the present invention;
FIG. 4 is a schematic illustration of an assembly cut-away of an eccentric vibratory progressive forming apparatus for thin-walled tube ends according to the present invention;
FIG. 5 is a schematic diagram of the structure of a lathe connection in an eccentric vibratory progressive forming apparatus for thin-walled pipe ends according to the present invention.
In the figure, 1, an eccentric head, 2, a step shaft, 3, an eccentric tool shaft and 4, a bearing sleeve; 41. bearing housing base, 42, arc groove, 43, first mounting hole, 44, second mounting hole; 5. angular contact ball bearing pairs, 6, lathe connecting pieces; 61. the tool handle is 62, the connecting seat is fixed, and the positioning hole is 63; 7. shaft end retainer ring, 8, adjusting ring, 9, step shaft fixing bolt.
Detailed Description
The eccentric vibration incremental forming device for the thin-wall pipe ends is described in detail below with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and fig. 4, an eccentric vibration incremental forming device for a thin-walled pipe end is used for being mounted on a horizontal lathe and used for the operation of flanging and forming the outer (inner) of the metal pipe end, and the device comprises an eccentric tool shaft 3, wherein the eccentric tool shaft 3 is a cylindrical rod, one end of the cylindrical rod is connected with a step shaft 2, the other end of the cylindrical rod is provided with an eccentric head 1, and a machining surface of the eccentric head 1 corresponding to the thin-walled pipe end can be a spherical surface or an arc surface; the cylindrical rod, the step shaft 2 and the eccentric head 1 can be integrally formed, and can be connected and fixed in a later period;
as shown in fig. 2, the step shaft 2 of the eccentric vibration incremental forming device for thin-walled pipe ends is designed to be step-shaped, and is intended to be anastomotic with the pair of angular contact ball bearings 5, the pair of angular contact ball bearings 5 is a double-layer shaft, and can be matched with the step shaft 2, and the bottom of the step shaft 2 is provided with a step shaft fixing bolt, so that the pair of angular contact ball bearings 5 is stably arranged on the step shaft 2.
As shown in fig. 3, the thin-wall pipe end eccentric vibration incremental forming device of the present invention is provided with an adjusting ring 8 around the step shaft 2 and sleeved in the middle of the angular contact ball bearing pair 5, the adjusting ring 8 can adjust the play between the two bearings, and provides pre-pressing between the two bearings. The side cover of angular contact ball bearing pair 5 is equipped with the bearing housing 4 of two locks, and bearing housing 4 has bearing housing base 41, and the opposite side of two bearing housing 4 locks is formed with arc groove 42, forms the cylindrical accommodation cavity of lock angular contact ball bearing pair 5, holds step axle 2 of eccentric bulb forming member in angular contact bearing pair 5 through interference fit, and axle head retaining ring 7 is still installed to the bottom of angular contact ball bearing pair 5, and its combined action prevents axial motion between eccentric bulb forming member and the angular contact bearing pair 5. Thereby improving the stability of the processing operation.
At least two second mounting holes 44 are correspondingly formed in the two bearing sleeves 4, and a first mounting hole 43 is formed in each bearing sleeve 4 corresponding to the lathe connecting piece 6. Two or four second mounting holes 44 are oppositely formed in the two bearing sleeves 4, and then bolts penetrate through the second mounting holes 44 to connect the two bearing sleeves 4.
As shown in fig. 5, each bearing sleeve 4 of the thin-walled pipe end eccentric vibration incremental forming device of the present invention is provided with two first mounting holes 43 on one surface close to the lathe connecting piece 6, the lathe connecting piece 6 comprises a knife handle 61, and one end of the knife handle 61 is used for connecting with a driving part of a lathe, so that the lathe controls the eccentric head 1 of the device to correspond to the position of the pipe end to be processed during operation. The other end of the knife handle 61 is provided with a fixed connecting seat 62, four positioning holes 63 are correspondingly formed in the fixed connecting seat 62 and correspond to the four first mounting holes 43, and the first mounting holes 43 and the positioning holes 63 are connected in a matched mode through bolts so as to fixedly connect the upper part structure to the lathe connecting piece 6.
The utility model relates to an installation and working process of thin wall pipe end eccentric vibration incremental forming device are: the angular contact ball bearing pair 5 is arranged on the step shaft 2 through interference fit, a step shaft fixing bolt 9 is arranged, a shaft end check ring 7 is fixed at the shaft end of the step shaft 2, and the angular contact ball bearing pair 5 is prevented from sliding; then two bearing sleeves 4 are buckled on the periphery of the angular contact ball bearing pair 5, and after the installation is completed, the two bearing sleeves 4 are fixed together through bolts; the lathe connecting piece 6 is connected with the two bearing sleeves 4 through bolts. The assembled forming device is shown in fig. 5; when in operation, the lathe connecting piece 6 is connected with a lathe, a pipe to be processed is installed on the lathe, and the lathe enables the eccentric head 1 of the eccentric ball head forming piece to correspond to the pipe end of the pipe to be processed through control; and then the lathe controls the device to perform pipe end external (internal) flanging forming of the pipe end of the pipe. When the operation starts, the eccentric ball forming part rotates under the friction action between the pipe wall and the side wall of the eccentric ball forming part, and the eccentric ball forming part has the eccentric quantity, so that the purpose of vibration processing of the forming tool on the metal pipe is achieved in the rotation process of the eccentric ball forming part.
The utility model relates to an eccentric vibration incremental forming device of thin wall pipe end through reasonable structural design, can realize the vibration of forming tool to metal tubular product, has the material grain of refining, improves the material plasticity and the flexible has, and this device's structure is convenient, and the practicality is stronger, has certain practical meaning.
Claims (1)
1. The eccentric vibration incremental forming device for the thin-wall pipe end is characterized by comprising an eccentric ball forming piece, wherein the eccentric ball forming piece comprises an eccentric tool shaft (3), one end of the eccentric tool shaft (3) is connected with a step shaft (2), and the other end of the eccentric tool shaft is provided with an eccentric head (1) corresponding to the thin-wall pipe end to be processed; the step shaft (2) is provided with an angular contact ball bearing pair (5), an adjusting buffer assembly is further arranged between the angular contact ball bearing pair (5) and the step shaft (2), the angular contact ball bearing pair (5) is sleeved with a bearing sleeve group, one side, far away from the eccentric tool shaft (3), of the bearing sleeve group is connected with a lathe connecting piece (6), and the lathe connecting piece (6) is used for connecting a lathe so as to enable the eccentric head (1) to correspond to a thin-wall pipe end to be processed; under the condition that the lathe is started, the angular contact ball bearing pair (5) is used for driving the eccentric ball head forming part to vibrate eccentrically so as to perform vibration flanging on the thin-wall pipe end to be processed;
the adjusting buffer assembly comprises an adjusting ring (8) arranged in the middle of the step shaft (2) and positioned between the angular contact ball bearing pair (5), and a shaft end check ring (7) arranged between the step shaft (2) and positioned between the angular contact ball bearing pair (5) and the lathe connecting piece (6);
the eccentric tool shaft (3) is a cylindrical rod, the eccentric head (1) is hemispherical, and the radial tangential plane of the eccentric head (1) is correspondingly connected with the radial tangential plane of the eccentric tool shaft (3);
the eccentric head (1), the eccentric tool shaft (3) and the step shaft (2) are of an integrated structure;
the bearing sleeve group comprises two bearing sleeves (4), and the two bearing sleeves (4) are respectively and correspondingly arranged at two sides of the angular contact ball bearing pair (5);
each bearing sleeve (4) comprises a bearing sleeve base (41), an arc-shaped groove (42) is formed in one side of each bearing sleeve base (41), at least two second mounting holes (44) are correspondingly formed in each bearing sleeve (4), and a first mounting hole (43) is formed in each bearing sleeve (4) corresponding to a lathe connecting piece (6);
the lathe connecting piece (6) comprises a cutter handle (61), one end of the cutter handle (61) is used for being connected with a lathe, a fixed connecting seat (62) is arranged at the other end of the cutter handle (61), and a plurality of positioning holes (63) are formed in the fixed connecting seat (62) corresponding to the first mounting holes (43);
the two bearing sleeves (4) and the two bearing sleeves (4) are connected with the lathe connecting piece (6) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871641.4A CN113634643B (en) | 2021-07-30 | 2021-07-30 | Eccentric vibration progressive forming device for thin-wall pipe ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110871641.4A CN113634643B (en) | 2021-07-30 | 2021-07-30 | Eccentric vibration progressive forming device for thin-wall pipe ends |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113634643A CN113634643A (en) | 2021-11-12 |
| CN113634643B true CN113634643B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110871641.4A Active CN113634643B (en) | 2021-07-30 | 2021-07-30 | Eccentric vibration progressive forming device for thin-wall pipe ends |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009053323A2 (en) * | 2007-10-22 | 2009-04-30 | Eads Deutschland Gmbh | Tool holder and incremental sheet forming method using the same |
| CN103639249A (en) * | 2013-12-03 | 2014-03-19 | 上海交通大学 | Sheet double-point incremental forming device and method |
| CN104368662A (en) * | 2014-11-14 | 2015-02-25 | 重庆大学 | Tool head and method for controlling buckling deformation in thin plate die-free gradual edge turning process |
| CN105964777A (en) * | 2016-05-24 | 2016-09-28 | 北京航空航天大学 | Rotary forming tool for incremental forming |
| CN106493216A (en) * | 2016-11-01 | 2017-03-15 | 山东大学 | Plate Electroplastic is without the compound progressive molding system of mould |
| CN106513499A (en) * | 2016-09-20 | 2017-03-22 | 北京航空航天大学 | Rotational molding tool used for incremental molding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8733143B2 (en) * | 2010-07-15 | 2014-05-27 | Ford Global Technologies, Llc | Method of incremental forming with successive wrap surfaces |
-
2021
- 2021-07-30 CN CN202110871641.4A patent/CN113634643B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009053323A2 (en) * | 2007-10-22 | 2009-04-30 | Eads Deutschland Gmbh | Tool holder and incremental sheet forming method using the same |
| CN103639249A (en) * | 2013-12-03 | 2014-03-19 | 上海交通大学 | Sheet double-point incremental forming device and method |
| CN104368662A (en) * | 2014-11-14 | 2015-02-25 | 重庆大学 | Tool head and method for controlling buckling deformation in thin plate die-free gradual edge turning process |
| CN105964777A (en) * | 2016-05-24 | 2016-09-28 | 北京航空航天大学 | Rotary forming tool for incremental forming |
| CN106513499A (en) * | 2016-09-20 | 2017-03-22 | 北京航空航天大学 | Rotational molding tool used for incremental molding |
| CN106493216A (en) * | 2016-11-01 | 2017-03-15 | 山东大学 | Plate Electroplastic is without the compound progressive molding system of mould |
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| Publication number | Publication date |
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| CN113634643A (en) | 2021-11-12 |
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