CN115648603A - Internal-support reducing type shape-preserving core rod for aerospace catheter forming equipment - Google Patents
Internal-support reducing type shape-preserving core rod for aerospace catheter forming equipment Download PDFInfo
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- CN115648603A CN115648603A CN202211346062.9A CN202211346062A CN115648603A CN 115648603 A CN115648603 A CN 115648603A CN 202211346062 A CN202211346062 A CN 202211346062A CN 115648603 A CN115648603 A CN 115648603A
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Abstract
The invention discloses an internal support reducing type shape-preserving core rod for aerospace catheter forming equipment, which comprises a first mounting seat, a second mounting seat and a plurality of arc-shaped shape-preserving plates, wherein the second mounting seat can move along the axial direction of a driving shaft, the first mounting seat is axially fixed with the driving shaft, the shape-preserving plates are arranged around the first mounting seat and the second mounting seat, the internal support reducing type shape-preserving core rod further comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, one end of the first connecting rod is hinged with the first mounting seat, the other end of the first connecting rod is connected with the shape-preserving plates in a sliding mode, the second connecting rod is arranged in a crossed mode and hinged with the first connecting rod, one end of the second connecting rod is hinged with one end of the third connecting rod, the other end of the second connecting rod is hinged with the fourth connecting rod, the other end of the third connecting rod is hinged with the second mounting seat, and the other end of the fourth connecting rod is hinged with the shape-preserving plates. So, can effectively support fixedly to thin wall pipe tip to can not cause the damage to the pipe, control more accurately.
Description
Technical Field
The invention relates to the field of aerospace, in particular to an inner support reducing type shape-preserving core rod for aerospace catheter forming equipment.
Background
For light weight design requirements of pipe parts used in aerospace, a large number of thin-wall pipes are adopted, and the thin-wall pipes can have strength and rigidity required by machining only by reliable clamping in the machining process.
Patent document CN214562925U discloses a pipe orifice shaping device for an ultra-large-diameter PE pipe, which comprises: flange sleeve pipe, be used for supporting the supporting component of design PE pipe body and be used for adjusting the adjusting component that the supporting component supported the size, the adjusting component movable sleeve is established flange sleeve pipe is last, flange sleeve pipe transversely sets up, flange sleeve pipe includes flange head and stack shell, the flange head is fixed to be set up the one end of stack shell, the supporting component includes first connecting rod and second connecting rod, the one end of first connecting rod with the flange head is articulated, the other end of first connecting rod is close to the inner wall of PE pipe body, the one end of second connecting rod with the adjusting component is articulated, the other end of second connecting rod is close to the inner wall of PE pipe body, first connecting rod with the crisscross setting of second connecting rod, first connecting rod with the second connecting rod is articulated in crisscross point department, the adjusting component is including impeling sleeve pipe and slip ring, works as the flange head is located during the right-hand member of stack shell, impel the sleeve pipe from the left end movable sleeve of stack shell is established on the stack shell body, the slip ring is set up in impel the right-hand member of sleeve pipe, the one end of second connecting rod with the slip ring is articulated.
The pipe type part that aerospace adopted has the characteristics that the pipe wall is thin and yielding, and the device among the prior art, directly push away the pipe inner wall through the one end of first connecting rod and the one end of second connecting rod, make the device among the prior art carry out the single-point to the pipe inner wall and support, the supporting area is little, the structure atress of pipe tip is inhomogeneous, can't fix the pipe, the pipe can rotate even deformation pokes the broken pipe wall in subsequent forming process, there is very high requirement to the control of the device among the prior art like this, simultaneously very big increase the control degree of difficulty of thin-walled pipe in forming process again.
Disclosure of Invention
In order to solve the problem of how to fix the thin-wall guide pipe from the inner side on the premise of not damaging the thin-wall guide rail in the prior art, the invention aims to provide the inner-support variable-diameter type shape-preserving core rod for the aerospace guide pipe forming equipment, which can effectively support and fix the end part of the thin-wall guide pipe, does not damage the guide pipe and is more accurately controlled.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an internal stay reducing formula shape preserving plug for aerospace pipe former, includes first mount pad, second mount pad, a plurality of reducing subassembly and a plurality of shape preserving plate that is used for supporting the pipe inner wall, the shape preserving plate is the arc, and the axial displacement of drive shaft can be followed to the second mount pad, first mount pad and drive shaft axial fixity, and the shape preserving plate centers on first mount pad and second mount pad setting, and the shape preserving plate passes through reducing mechanism and is connected with first mount pad and second mount pad, reducing mechanism includes first connecting rod, second connecting rod, third connecting rod and fourth connecting rod, the one end of first connecting rod is articulated with first mount pad, the other end and the shape preserving plate sliding connection of first connecting rod, the second connecting rod with first connecting rod cross arrangement and articulated, the one end of second connecting rod is articulated with the one end of third connecting rod, the other end and the fourth connecting rod of second connecting rod are articulated, the other end and the shape preserving plate of third connecting rod are articulated.
Preferably, the lengths of the second link, the third link and the fourth link are sequentially reduced.
Preferably, a distance between the hinge points of the two ends of the first link is greater than a sum of a distance between the hinge points of the two ends of the second link, a distance between the hinge points of the two ends of the third link, and a distance between the hinge points of the two ends of the fourth link.
Preferably, the device further comprises a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat are fixedly connected with the shape-preserving plate, the other end of the third connecting rod is hinged to the first connecting seat, and the other end of the fourth connecting rod is connected with the second connecting seat in a sliding mode.
Preferably, a plurality of support legs used for connecting the variable diameter assembly are protruded on the first mounting seat and the second mounting seat, and the support legs correspond to the shape-preserving plates one to one.
Preferably, any one of the shape-retaining plates is connected with the first mounting seat and the second mounting seat through two groups of reducing assemblies.
Preferably, the device further comprises a servo motor for driving the second mounting seat to move along the driving shaft, and the second mounting seat is located between the servo motor and the first mounting seat.
Preferably, the servo motor drives the second mounting seat to move along the driving shaft through the speed reducer.
Preferably, the second mounting seat is in threaded connection with the driving shaft, and the first mounting seat is in rotational connection with the driving shaft.
The technical scheme of the invention has the beneficial effects that: so that the conformal core rod can support the guide pipe from the inner side of the guide pipe and can be used for the procedures of rounding, reaming, fixing and the like of the end of the guide pipe; the maximum adjusting distance of the shape-preserving core rod is determined not by the moving distance of the second mounting seat but by the second connecting rod, the third connecting rod and the fourth connecting rod, so that the first mounting seat and the second mounting seat can be prevented from colliding with each other, the safety of the shape-preserving core rod is improved, the shape-preserving core rod can be slowly unfolded, and the positioning precision of the shape-preserving core rod can be controlled more accurately; the shape-preserving core rod adopts the arc-shaped flaky shape-preserving plate to support the inner wall of the guide pipe, and the shape-preserving core rod is not point-supported any more, so that the guide pipe can be better protected, the inner diameter of the guide pipe is more uniform, and the influence of the gap on the part of the guide pipe which is subjected to inner diameter support in the guide pipe forming process can be realized, and the yield of the guide pipe is improved.
Drawings
FIG. 1 is a first schematic structural view of an inner supporting variable diameter type shape-preserving core rod of the present invention;
fig. 2 is a second structural schematic diagram of the internal support variable-diameter type conformal core rod of the invention.
Reference numerals: 1. a servo motor; 2. a reduction gearbox; 3. a drive shaft; 4. a first mounting seat; 5. a second mounting seat; 6. a shape-retaining plate; 7. a first link; 8. a second link; 9. a third link; 10. a fourth link; 11. a first connecting seat; 12. a second connecting seat; 13. a sliding hole; 14. a first leg; 15. a second leg.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
Example 1
The utility model provides an internal stay reducing type shape preserving plug for aerospace pipe former, as shown in fig. 1 and fig. 2, including first mount pad 4, second mount pad 5, drive shaft 3, a plurality of reducing subassembly and a plurality of shape preserving plate 6 that are used for supporting the pipe inner wall, first mount pad 4 and second mount pad 5 are all established on drive shaft 3, and second mount pad 5 can be followed drive shaft 3's axial displacement, first mount pad 4 and drive shaft 3 axial fixity, and shape preserving plate 6 sets up around first mount pad 4 and second mount pad 5, and shape preserving plate 6 passes through reducing mechanism and is connected with first mount pad 4 and second mount pad 5, reducing mechanism includes first connecting rod 7, second connecting rod 8, third connecting rod 9 and fourth connecting rod 10, the one end of first connecting rod 7 is articulated with first mount pad 4, the other end and the shape preserving plate 6 sliding connection of first connecting rod 7, second connecting rod 8 with first connecting rod 7 crossing and articulated, the one end and the one end of second connecting rod 8 and the articulated other end of third connecting rod 9, the other end and the articulated second connecting rod 5 of fourth connecting rod, the articulated shape preserving plate 6 articulated with the other end of fourth connecting rod 10.
The arrangement is such that the conformal core rod can support the guide pipe from the inner side of the guide pipe and can be used for the procedures of rounding, reaming, fixing and the like of the end of the guide pipe; the maximum adjusting distance of the shape-preserving core rod is not determined by the moving distance of the second mounting seat, but determined by the second connecting rod, the third connecting rod and the fourth connecting rod, so that the first mounting seat and the second mounting seat can be prevented from colliding, the safety of the shape-preserving core rod is improved, and on the premise of not changing the length of the first connecting rod, the adjusting range of the shape-preserving core rod can be changed by changing the lengths of the rest connecting rods, so that the shape-preserving core rod has higher flexibility; the shape-preserving core rod adopts the flaky shape-preserving plate to support the inner wall of the guide pipe, so that the guide pipe can be better protected, the inner diameter of the guide pipe is more uniform, the influence on part of the guide pipe subjected to inner diameter support in the guide pipe forming process can be eliminated, and the yield of the guide pipe is improved.
In this embodiment, the shape-retaining plates 6 are arc-shaped plates, and when the shape-retaining core rod is in a contracted state, a plurality of shape-retaining plates can enclose a hollow cylinder; when the shape-preserving core rod is unfolded outwards, the outer diameter of the shape-preserving core rod reaches the minimum, when the second installation seat 5 moves axially along the driving shaft 3, the second installation seat 5 pushes the third connecting rod 9, the third connecting rod 9 pushes the second connecting rod 8, the second connecting rod 8 rotates around a hinge point of the second connecting rod and the first connecting rod 7, the second connecting rod 8 pushes the first connecting rod 7 to rotate around a hinge point of the first connecting rod 7 and the first installation seat 4, the first connecting rod 7 slides along the shape-preserving plate, and the second connecting rod 8 pushes the shape-preserving plate 6 to move outwards through the fourth connecting rod 10. So set up, can increase the contact surface of conformal plug and pipe inner wall, better support the pipe.
In this embodiment, a plurality of support legs are protruded from the first mounting seat 4 and the second mounting seat 5, the support leg on the first mounting seat 4 is a first support leg 14, the support leg on the second mounting seat 5 is a second support leg 15, the first support legs 14 and the second support legs 15 are in one-to-one correspondence with the protection plates 6, the protection plates 6 are fixedly provided with a first connecting seat 11 and a second connecting seat 12, one end of the first connecting rod 7 is hinged to the first support leg 14, the other end of the first connecting rod 7 is connected to the second connecting seat 12 in a sliding manner, one end of the third connecting rod 9 is hinged to the second support leg 15, and one end of the fourth connecting rod 10 is hinged to the first connecting seat 11. So as to arrange. The installation of the reducing assembly is more convenient.
In this embodiment, each of the shape-retaining plates 6 is connected to the first mounting seat 4 and the second mounting seat 5 through two diameter-changing assemblies. The arrangement can increase the stability of the support of the protective plate. Specifically, in two reducing subassemblies that link to each other with same shape-preserving plate 6, two reducing subassembly's head rod 7 is located the both sides of a first stabilizer blade 14, and two reducing subassembly's head rod 7 is located the both sides of second connecting seat 12, and two reducing subassembly's third connecting rod 9 is located the both sides of a second stabilizer blade 15, and two reducing subassembly's fourth connecting rod 10 is located the both sides of a first mount pad 4, two reducing subassembly's first connecting rod 7 is articulated with the first stabilizer blade 14 of first mount pad through a articulated shaft, and two reducing subassembly's third connecting rod 7 is articulated with second stabilizer blade 15 of second mount pad 5 through an articulated shaft, and two reducing subassembly's fourth connecting rod 10 is articulated with first mount pad 11 through an articulated shaft. So set up, the installation of same reducing subassembly of being convenient for improves the stability of conformal board activity. Furthermore, a sliding hole 13 is formed in the second connecting seat 12, a roller is arranged in the sliding hole 13, the first connecting rods 7 of the two reducing assemblies are located on two sides of the roller, and the first connecting rods 7 of the two reducing assemblies are connected through a shaft penetrating through the roller.
In this embodiment, the conformal core rod further comprises a servo motor 1 for driving 5 to move. Thus, the moving speed and distance of the second mounting seat 5 can be controlled by accurately controlling the movement of the servo motor 1. Furthermore, the driving shaft 3 is a screw rod, the driving shaft 3 is connected with the output end of the reduction gearbox 2, the input end of the reduction gearbox 2 is connected with the servo motor 1, the second mounting seat 5 is located between the first mounting seat 4 and the reduction gearbox 2, the first mounting seat 4 is rotatably connected with the driving shaft 3, and the second mounting seat 5 is in threaded connection with the driving shaft 3. So set up, through the structure that servo motor cooperation reducing gear box drive second mount pad removed on the actuating lever, the degree that control shape preserving plug that can be slight expandes satisfies the requirement of guide rail precision to the at utmost.
In the present embodiment, the length of the second link 7, the length of the third link 8, and the length of the fourth link 9 are reduced in this order. Due to the arrangement, after the second installation seat 5 moves, a lever structure can be formed at the second connecting rod 8 and the first connecting rod 7, and the length of the third connecting rod is larger than that of the fourth connecting rod, so that the swinging angle of the fourth connecting rod is larger than that of the third connecting rod in a swinging and hinging mode, so that the shape-changing mandrel can be rapidly unfolded from a contraction state, and the fourth connecting rod is shortest in length and is connected with the shape-keeping plate, so that after the fourth connecting rod is perpendicular to the shape-keeping plate, if the second installation seat continues to approach the first installation seat, the outward moving speed of the shape-keeping plate will be reduced, the process can be continued until the third connecting rod is perpendicular to the shape-keeping plate, so that the unfolding of the shape-changing mandrel can be better controlled, and after the third connecting rod is perpendicular to the shape-keeping plate, if the second installation seat continues to move, the shape-changing mandrel moves with the trend of returning to the contraction state, and further the diameter-changing mandrel can be better protected.
In this embodiment, the distance between the hinge points at the two ends of the first connecting rod 7 is greater than the sum of the distance between the hinge points at the two ends of the second connecting rod 8, the distance between the hinge points at the two ends of the third connecting rod 8, and the distance between the hinge points at the two ends of the fourth connecting rod 9. Therefore, the first connecting rod can be always kept in an inclined state, and the shape-retaining core rod can keep the tendency of outward expansion.
The use method of the structure of the internal support variable-diameter shape-preserving core rod for the aerospace catheter forming equipment is provided; firstly, a servo motor 1 drives a speed reducer 2 to drive a driving shaft 3 to rotate, the driving shaft 3 rotates to drive a reducing assembly to expand so that a plurality of shape-preserving plates move outwards simultaneously, and when the moving outer diameter of the shape-preserving plates is slightly smaller than the inner diameter of a guide pipe, the shape-preserving plates are inserted into the guide pipe; then, the servo motor is continuously driven to drive the speed reducer to drive the driving shaft to rotate, and finally, the inner wall of the conduit is abutted to be tightly shaped through the plurality of shape-keeping plates.
In other embodiments, different from the present embodiment, the first mounting seat 4 is in threaded connection with the driving shaft 3, a sleeve is sleeved on the driving shaft 3, the sleeve is fixedly connected with the box body of the reduction gearbox 2, and the second mounting seat 5 is fixed on the sleeve; and the power for driving the conformal core rod to expand outwards is moved from the first mounting seat along the axial direction of the driving shaft.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. The utility model provides an internal stay reducing formula shape preserving plug for aerospace pipe former which characterized in that: including first mount pad (4), second mount pad (5), a plurality of reducing subassembly and a plurality of conformal plate (6) that are used for supporting the pipe inner wall, the conformal plate is the arc, and the axial displacement of drive shaft (3) can be followed in second mount pad (5), and first mount pad (4) and drive shaft (3) axial fixity protect shaped plate (6) around first mount pad (4) and second mount pad (5) setting, protect shaped plate (6) to be connected with first mount pad (4) and second mount pad (5) through reducing mechanism, reducing mechanism includes first connecting rod (7), second connecting rod (8), third connecting rod (9) and fourth connecting rod (10), the one end of first connecting rod (7) is articulated with first mount pad (4), the other end and conformal plate (6) sliding connection of first connecting rod (7), the other end and the articulated with first connecting rod (7) of second connecting rod (8), the other end and the articulated other end and the fourth connecting rod (10) of second connecting rod (8), the articulated other end and the articulated second connecting rod (10).
2. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: the length of the second connecting rod (8), the length of the third connecting rod (9) and the length of the fourth connecting rod (10) are reduced in sequence.
3. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: the distance between the hinge points at the two ends of the first connecting rod (7) is greater than the sum of the distance between the hinge points at the two ends of the second connecting rod (8), the distance between the hinge points at the two ends of the third connecting rod (9) and the distance between the hinge points at the two ends of the fourth connecting rod (10).
4. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: still include first connecting seat (11) and second connecting seat (12), first connecting seat (11) and second connecting seat (12) all with shape preserving board (6) fixed connection, the other end and first connecting seat (11) of third connecting rod (9) are articulated, the other end and second connecting seat (12) sliding connection of fourth connecting rod (10).
5. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: all protruding have a plurality of stabilizer blades that are used for connecing the reducing subassembly on first mount pad (4) and second mount pad (5), a plurality of stabilizer blades and a plurality of shape board (6) one-to-one.
6. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: and any one of the protective plates (6) is connected with the first mounting seat (4) and the second mounting seat (5) through two groups of reducing assemblies.
7. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: the servo motor (1) is used for driving the second mounting seat (5) to move along the driving shaft (3), and the second mounting seat (5) is located between the servo motor (1) and the first mounting seat (4).
8. The internal bracing reducing type conformal core rod for the aerospace catheter forming equipment according to claim 7, wherein: the servo motor (1) drives the second mounting seat (5) to move along the driving shaft (3) through the speed reducer.
9. The internal support tapered conformal core rod for the aerospace catheter forming device according to claim 1, wherein: the second mounting seat (5) is in threaded connection with the driving shaft (3), and the first mounting seat (4) is in rotary connection with the driving shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211346062.9A CN115648603A (en) | 2022-10-31 | 2022-10-31 | Internal-support reducing type shape-preserving core rod for aerospace catheter forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211346062.9A CN115648603A (en) | 2022-10-31 | 2022-10-31 | Internal-support reducing type shape-preserving core rod for aerospace catheter forming equipment |
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| CN115648603A true CN115648603A (en) | 2023-01-31 |
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| CN202211346062.9A Pending CN115648603A (en) | 2022-10-31 | 2022-10-31 | Internal-support reducing type shape-preserving core rod for aerospace catheter forming equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226759A (en) * | 2023-11-07 | 2023-12-15 | 成都易联智通信息技术有限公司 | Positioning tool for assembling data acquisition device |
| CN117727548A (en) * | 2024-01-30 | 2024-03-19 | 零八一电子集团四川力源电子有限公司 | Regulator for mobile support of common cavity FLTD assembly |
-
2022
- 2022-10-31 CN CN202211346062.9A patent/CN115648603A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226759A (en) * | 2023-11-07 | 2023-12-15 | 成都易联智通信息技术有限公司 | Positioning tool for assembling data acquisition device |
| CN117226759B (en) * | 2023-11-07 | 2024-01-30 | 成都易联智通信息技术有限公司 | Positioning tool for assembling data acquisition device |
| CN117727548A (en) * | 2024-01-30 | 2024-03-19 | 零八一电子集团四川力源电子有限公司 | Regulator for mobile support of common cavity FLTD assembly |
| CN117727548B (en) * | 2024-01-30 | 2024-04-26 | 零八一电子集团四川力源电子有限公司 | Regulator for movable support of common cavity FLTD assembly |
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