CN110090882B - Vertical type opposite-wheel spinning device for forming large-diameter thin-wall bottom sealing structure - Google Patents
Vertical type opposite-wheel spinning device for forming large-diameter thin-wall bottom sealing structure Download PDFInfo
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- CN110090882B CN110090882B CN201910509018.7A CN201910509018A CN110090882B CN 110090882 B CN110090882 B CN 110090882B CN 201910509018 A CN201910509018 A CN 201910509018A CN 110090882 B CN110090882 B CN 110090882B
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
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Abstract
The invention discloses a vertical type paired wheel spinning device for forming a large-diameter thin-wall bottom sealing structure, which adopts a vertical structure, wherein an inner spinning wheel seat frame and an outer spinning wheel seat frame share two horizontal guide rails, and the two horizontal guide rails are arranged on the same horizontal guide rail; the guide rail is fixed on the base of the vertical spinning machine, and the horizontal movement of the spinning wheel seat frame is controlled by the hydraulic cylinder; the spindle motor and the universal mandrel are arranged on the spinning machine base in parallel, vertical guide rails are arranged on the inner and outer spinning roller seat frames, and the support arms of the inner and outer spinning rollers are arranged on the vertical guide rails and controlled by a hydraulic cylinder to move; the control of the angle of the rotary wheel is realized by a swing arm and a hydraulic cylinder which are connected with a support arm of the rotary wheel; the tail top is arranged on the external frame; the blank is fixed on the universal mandrel through a bolt, and keeps synchronous rotation with the mandrel, and the tail of the blank is tightly propped against the blank. The invention is used for spinning forming of the large-scale back cover component.
Description
Technical Field
The invention relates to the technical field of opposite-wheel spinning devices, in particular to a vertical opposite-wheel spinning device for forming a large-diameter thin-wall bottom sealing structure.
Background
The spinning forming process has unique advantages in the forming aspect of the thin-wall bottom sealing structure compared with welding and deep drawing due to the advantages of simple die, flexible process, wide adaptability and the like, and is widely used for manufacturing products such as conical covers, spherical end sockets, curved bus members and the like at present. Most of the traditional spinning forming processes need a spinning core mold, but when the size of the bottom sealing structure is larger, the coreless spinning process is widely applied due to the advantages of low cost, short manufacturing period and the like, for example, the coreless one-step and two-step spinning forming is widely adopted for large end socket parts in the petrochemical industry at present. However, the existing end socket spinning equipment can only form a butterfly-shaped or spherical end socket, and the dimensional accuracy is low. Aiming at large-scale conical, multi-conical section composite, conical cylinder section composite or complex bus thin-wall bottom sealing structures, the traditional end socket spinning equipment is difficult to form.
Disclosure of Invention
The invention aims to provide a vertical type paired wheel spinning device for forming a large-diameter thin-wall bottom sealing structure, which aims to solve the problems in the prior art, and the inner wheel and the outer wheel are compounded by horizontal movement based on a common horizontal guide rail and vertical movement respectively based on each vertical guide rail to realize accurate forming of a complex spinning track, so that the problem of the complex large-size thin-wall bottom sealing structure is solved.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a vertical type paired wheel spinning device for forming a large-diameter thin-wall bottom sealing structure, which comprises a base, slide rails, a spindle motor, a mandrel, an internal spinning wheel mechanism and an external spinning wheel mechanism, wherein the two transverse slide rails are arranged on the base in parallel;
the inner rotary wheel mechanism comprises an inner rotary wheel sliding seat, an inner rotary wheel transverse hydraulic cylinder, an inner rotary wheel longitudinal hydraulic cylinder, an inner rotary wheel support arm and an inner rotary wheel, the inner rotary wheel sliding seat is installed on the slide rail and located on one side of the mandrel, the inner rotary wheel transverse hydraulic cylinder is located on the outer side of the inner rotary wheel sliding seat and used for driving the inner rotary wheel sliding seat to transversely move, the inner rotary wheel longitudinal hydraulic cylinder is installed inside the inner rotary wheel sliding seat, first longitudinal guide rails are arranged on two sides inside the inner rotary wheel sliding seat, the inner rotary wheel support arm is installed inside the first longitudinal guide rails and fixedly connected with a sliding block arranged at the top of the inner rotary wheel longitudinal hydraulic cylinder, and the inner rotary wheel is installed at the other end of the inner rotary wheel support arm and acts on the inner side wall of the blank;
the external rotation wheel mechanism comprises an external rotation wheel sliding seat, an external rotation wheel transverse hydraulic cylinder, an external rotation wheel longitudinal hydraulic cylinder, an external rotation wheel support arm and an external rotation wheel, the external rotation wheel sliding seat is installed on the sliding rail and located on the other side of the mandrel, the external rotation wheel transverse hydraulic cylinder is located on the outer side of the external rotation wheel sliding seat and used for driving the external rotation wheel sliding seat to move transversely, the external rotation wheel longitudinal hydraulic cylinder is installed inside the external rotation wheel sliding seat, second longitudinal guide rails are arranged on two sides inside the external rotation wheel sliding seat, the external rotation wheel support arm is installed inside the second longitudinal guide rails and fixedly connected with a sliding block arranged at the top of the external rotation wheel longitudinal hydraulic cylinder, and the external rotation wheel is installed at the other end of the external rotation wheel support arm and acts on the outer side face of the blank;
the top end of the blank is tightly jacked through a tail jack arranged on an external bracket.
Preferably, the inner rotating wheel support arm is also provided with a swing arm and a hydraulic cylinder, one end of the swing arm is connected with the inner rotating wheel support arm, the other end of the swing arm is connected with a hydraulic rod of the hydraulic cylinder, and the inner rotating wheel is arranged at the tail end of the connecting side of the swing arm and the hydraulic cylinder; the other end of the hydraulic cylinder is fixed on the inner rotary wheel support arm.
Preferably, a space for accommodating the mandrel to pass through is reserved between the swing arm and the inner rotating wheel support arm.
Preferably, the external rotation wheel support arm is also provided with a swing arm and a hydraulic cylinder, one end of the swing arm is connected with the external rotation wheel support arm, the other end of the swing arm is connected with a hydraulic rod of the hydraulic cylinder, and the external rotation wheel is arranged at the tail end of the connection side of the swing arm and the hydraulic cylinder; the other end of the hydraulic cylinder is fixed on the outer rotary wheel support arm.
Preferably, the external support comprises four upright posts, a top plate and a bottom plate, the bottom plate penetrates through two sides of the base and is fixed on the bottom surface, the four upright posts are fixedly installed on four corners of the bottom plate, the top plate is installed at the top ends of the upright posts, and the tail top is installed in the central area of the top plate.
Compared with the prior art, the invention has the following technical effects:
1. the paired wheel spinning device adopts a vertical structure, and compared with a horizontal structure, the vertical structure occupies a small area; the dead weight of the core mould and the blank is not easy to cause the eccentric load of the main shaft, and the rigidity of the main shaft is improved.
2. The internal rotating wheel and the external rotating wheel are respectively controlled by two independent hydraulic cylinders, and can accurately reach any position in a working plane under the control of a high-precision hydraulic cylinder and an operating system, so that the spinning forming of a complex curved bus piece can be completed. When workpieces with different wall thicknesses are formed, only the motion trail of the rotary wheel needs to be adjusted, and the equipment applicability is strong.
3. The inner spinning wheel swing arm and the inner spinning wheel support arm adopt a bifurcated structure, and a spinning mandrel can penetrate through the two arms, so that the minimum size of equipment is ensured, and the space cost is reduced; the angle of the rotary wheel is controlled by the high-precision hydraulic cylinder, so that the joint of the rotary wheel and the blank can be ensured according to the optimal forming angle, the pressure of equipment is reduced, and the requirement on structural strength is lowered. The proper forming angle is also beneficial to improving the quality of spinning forming and the forming size precision.
4. The invention adopts the core-free mold coupled-wheel spinning structure, saves the production cost of the core mold, shortens the production period of spinning and improves the production efficiency. Because the invention is not limited by a core mould, the invention is suitable for forming thin-wall back cover structural parts with various shapes and sizes in a certain range, in particular to large thin-wall conical parts, and meets the requirements of flexible production and manufacturing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a vertical pair wheel spinning machine apparatus of the present invention;
FIG. 2 is a schematic view of the internal rotation wheel and the external rotation wheel of the present invention;
FIG. 3 is a schematic view of the swing arm assembly of the internal rotor arm of the present invention;
FIG. 4 is a schematic view of the swing arm assembly of the swing wheel arm of the present invention;
FIG. 5 is a schematic view of the external bracket assembly of the present invention;
FIGS. 6a, 6b and 6c are respectively other cross-sectional angle illustrations of the outer stent;
wherein, 1, an internal rotating wheel horizontal hydraulic cylinder; 2, an internal rotating wheel longitudinal hydraulic cylinder; 3, a hydraulic rod; 4 an internal rotation wheel sliding seat; 5, blank material; 6, supporting the tail of the ship; 7, a mandrel; 8, a spindle motor; 9 a base; 10, a slide rail; 11, an external rotation wheel transverse hydraulic cylinder; 12 an epitrochoidal slide; 13 hydraulic rods; 14 longitudinal hydraulic cylinders with external rotating wheels; 15 internal rotating wheel support arm; 16 hydraulic cylinders; 17 hydraulic rods; 18 inner rotary wheel swing arms; 19 an internal rotation wheel; 20 an external rotation wheel; 21 hydraulic rods; 22 hydraulic cylinders; 23 an external rotation wheel support arm; 24 swing arms of externally rotating wheels; 25 a first longitudinal rail; 26 a second longitudinal rail; 27 a slide block; 28 a slide block; 29 an outer support.
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.
The invention aims to provide a vertical type paired wheel spinning device for forming a large-diameter thin-wall bottom sealing structure, which aims to solve the problems in the prior art, and the inner wheel and the outer wheel are compounded by horizontal movement based on a common horizontal guide rail and vertical movement respectively based on each vertical guide rail to realize accurate forming of a complex spinning track, so that the problem of the complex large-size thin-wall bottom sealing structure is solved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-6, wherein fig. 1 is a schematic view of a vertical pair-wheel spinning machine apparatus of the present invention; FIG. 2 is a schematic view of the internal rotation wheel and the external rotation wheel of the present invention; FIG. 3 is a schematic view of the swing arm assembly of the internal rotor arm of the present invention; FIG. 4 is a schematic view of the swing arm assembly of the swing wheel arm of the present invention; FIG. 5 is a schematic view of the external bracket assembly of the present invention; fig. 6a, 6b and 6c respectively show other cut-away angles of the outer stent.
As shown in fig. 1-6, the invention provides a vertical type paired wheel spinning device for forming a large-diameter thin-wall bottom sealing structure, which mainly comprises an internal spinning wheel transverse hydraulic cylinder 1, an internal spinning wheel longitudinal hydraulic cylinder 2, a hydraulic rod 3, an internal spinning wheel sliding seat 4, an external spinning wheel transverse hydraulic cylinder 11, an external spinning wheel longitudinal hydraulic cylinder 14, a hydraulic rod 13, an external spinning wheel sliding seat 12, a spindle motor 8, a spindle shaft 7, a tail top 6, a blank 5, a slide rail 10, a base 9, an internal spinning wheel mechanism and an external spinning wheel mechanism.
The invention adopts a vertical structure, and two transverse slide rails 10 are arranged on a base 9 in parallel; the universal mandrel 7 is fixedly arranged on the base 9 and is positioned between the two transverse slide rails 10; the inner spinning wheel sliding seat 4 and the outer spinning wheel sliding seat 12 are arranged on a transverse sliding rail 10 and are respectively arranged at two sides of the mandrel 7, and the transverse movement of the inner spinning wheel sliding seat and the outer spinning wheel sliding seat is controlled by two independent inner spinning wheel transverse hydraulic cylinders 1 and two independent outer spinning wheel transverse hydraulic cylinders 11; the first longitudinal guide rail 25 and the second longitudinal guide rail 26 are arranged in the inner spinning wheel sliding seat 4 and the outer spinning wheel sliding seat 12, the inner spinning wheel support arm 15 is arranged on the first longitudinal guide rail 25 and is controlled to move by the inner spinning wheel longitudinal hydraulic cylinder 2, the outer spinning wheel support arm 23 is arranged on the second longitudinal guide rail 26 and is controlled to move by the outer spinning wheel longitudinal hydraulic cylinder 14, and then composite movement of the spinning wheels in a plane is achieved.
Furthermore, the angle of the inner rotary wheel 19 is controlled by the inner rotary wheel swing arm 18, one end of the inner rotary wheel swing arm 18 is connected with the inner rotary wheel support arm 15, the other end of the inner rotary wheel swing arm is connected with the hydraulic rod 17, and the angle of the inner rotary wheel swing arm 18 is adjusted by the expansion and contraction of the hydraulic rod 17, so that the positioning of the rotary wheels at different angles is realized; the angle of the outward rotating wheel 20 is controlled by an outward rotating wheel swing arm 24, one end of the outward rotating wheel swing arm 24 is connected with an outward rotating wheel support arm 23, the other end of the outward rotating wheel swing arm 24 is connected with a hydraulic rod 21, and the angle of the outward rotating wheel swing arm 24 is adjusted through the expansion and contraction of the hydraulic rod 21. The tail cap 6 is mounted on the outer bracket 29; the blank 5 is fixed on the mandrel 7 through a bolt and keeps synchronous rotation with the mandrel 7, and the tail top 6 tightly pushes the blank 5.
Specifically, referring to fig. 3, the internal rotation wheel arm 15 has a bifurcated structure, and the bottom of the internal rotation wheel arm is connected to the sliding block 27, so as to ensure that the internal rotation wheel arm can slide on the first longitudinal guide rail 25; the end parts and the middle parts of the two arms are respectively connected with an inner rotary wheel swing arm 18 and a hydraulic cylinder 16. The inner rotary wheel swing arm 18 is of a forked structure in the plane, one end of the inner rotary wheel swing arm is tilted, and the upper part of the inner rotary wheel swing arm is provided with a rotary wheel seat capable of being provided with an inner rotary wheel 19; the end part of the forked end and the middle part of the swing arm are respectively connected with an inner rotary wheel support arm 15 and a hydraulic rod 17; enough space is left between the internal rotating wheel support arm 15 and the internal rotating wheel swing arm 18 to accommodate the mandrel 7 to pass through.
Referring to fig. 4, the external rotation wheel support arm 23 and the swing arm 24 are both beam-shaped structures, and the tail end of the external rotation wheel support arm 23 is connected with the slide block 28 to ensure that the structure can slide on the second longitudinal guide rail 26; the external rotation wheel support arm 23 and the external rotation wheel swing arm 24 are connected by adopting a hinging method; the top of the swing arm 24 of the external rotation wheel is provided with an external rotation wheel seat which is provided with the external rotation wheel 20; the non-connecting ends of the swing arm 23 and the swing arm 24 are respectively connected with the hydraulic cylinder 22 and the hydraulic rod 21 for controlling the angle.
The internal rotating wheel 19 and the external rotating wheel 20 are respectively controlled by two independent hydraulic cylinders, and can accurately reach any position in a working plane under the control of a high-precision hydraulic cylinder and an operating system, so that the spinning forming of a complex curved bus piece can be completed. When workpieces with different wall thicknesses are formed, only the motion trail of the rotary wheel needs to be adjusted, and the equipment applicability is strong.
Further, referring to fig. 5, the external bracket 29 is composed of four columns, a top plate and a bottom plate, the bottom plate penetrates through the base 9 and is fixed with the ground to fix the external bracket 29; the four upright posts are positioned at four corners, play a role in supporting and simultaneously define a working area; the central region of the top plate is provided with a tail top 6 for tightly supporting the blank 5.
The structure of the outer bracket 29 is not limited to the above structure, and may be converted into other structures that can support and fix the tail roof 6, see fig. 6 in particular.
The invention aims to solve the problems of high mold cost, poor universality, low production efficiency and the like of the existing mold spinning equipment in the aspect of forming large thin-wall bottom sealing pieces, and further provides a pair wheel spinning equipment for forming thin-wall bottom sealing pieces with different sizes. The internal and external rotating wheel mechanisms move transversely to share the slide rail 10, the internal and external rotating wheels move radially on respective longitudinal slide rails, and the two transverse guide rails are arranged on the longitudinal guide rails to realize compound movement.
The angle of the rotary wheel is controlled by adopting a hydraulic cylinder to adjust, so that the normal line is automatically aligned; meanwhile, a blank is fixed at the bottom by adopting the mandrel 7 and the tail top 6, the mandrel 7 is driven to rotate by the spindle motor 8, and the internal and external rotating wheels move from the bottom to the opening according to a set multi-pass spinning track, so that the forming of a large-sized bottom sealing component is realized.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (3)
1. The utility model provides a pair wheel spinning device for forming major diameter thin wall back cover structure which characterized in that: the automatic blank-removing machine comprises a base, slide rails, a spindle motor, a mandrel, an internal rotating wheel mechanism and an external rotating wheel mechanism, wherein the slide rails are two transverse slide rails which are arranged on the base in parallel;
the inner rotary wheel mechanism comprises an inner rotary wheel sliding seat, an inner rotary wheel transverse hydraulic cylinder, an inner rotary wheel longitudinal hydraulic cylinder, an inner rotary wheel support arm and an inner rotary wheel, the inner rotary wheel sliding seat is installed on the slide rail and located on one side of the mandrel, the inner rotary wheel transverse hydraulic cylinder is located on the outer side of the inner rotary wheel sliding seat and used for driving the inner rotary wheel sliding seat to transversely move, the inner rotary wheel longitudinal hydraulic cylinder is installed inside the inner rotary wheel sliding seat, first longitudinal guide rails are arranged on two sides inside the inner rotary wheel sliding seat, the inner rotary wheel support arm is installed inside the first longitudinal guide rails and fixedly connected with a sliding block arranged at the top of the inner rotary wheel longitudinal hydraulic cylinder, and the inner rotary wheel is installed at the other end of the inner rotary wheel support arm and acts on the inner side wall of the blank;
the external rotation wheel mechanism comprises an external rotation wheel sliding seat, an external rotation wheel transverse hydraulic cylinder, an external rotation wheel longitudinal hydraulic cylinder, an external rotation wheel support arm and an external rotation wheel, the external rotation wheel sliding seat is installed on the sliding rail and located on the other side of the mandrel, the external rotation wheel transverse hydraulic cylinder is located on the outer side of the external rotation wheel sliding seat and used for driving the external rotation wheel sliding seat to move transversely, the external rotation wheel longitudinal hydraulic cylinder is installed inside the external rotation wheel sliding seat, second longitudinal guide rails are arranged on two sides inside the external rotation wheel sliding seat, the external rotation wheel support arm is installed inside the second longitudinal guide rails and fixedly connected with a sliding block arranged at the top of the external rotation wheel longitudinal hydraulic cylinder, and the external rotation wheel is installed at the other end of the external rotation wheel support arm and acts on the outer side face of the blank;
the top end of the blank is tightly jacked through a tail jack arranged on an external bracket;
the inner rotary wheel support arm is also provided with a swing arm and a hydraulic cylinder, one end of the swing arm is connected with the inner rotary wheel support arm, the other end of the swing arm is connected with a hydraulic rod of the hydraulic cylinder, and the inner rotary wheel is arranged at the tail end of the connection side of the swing arm and the hydraulic cylinder; the other end of the hydraulic cylinder is fixed on the inner rotary wheel support arm, and the inner rotary wheel swing arm and the inner rotary wheel support arm adopt a branched structure; the external rotation wheel support arm is also provided with a swing arm and a hydraulic cylinder, one end of the swing arm is connected with the external rotation wheel support arm, the other end of the swing arm is connected with a hydraulic rod of the hydraulic cylinder, and the external rotation wheel is arranged at the tail end of the connection side of the swing arm and the hydraulic cylinder; the other end of the hydraulic cylinder is fixed on the outer rotary wheel support arm.
2. The pair-wheel spinning apparatus for forming a large-diameter thin-walled bottom closure structure according to claim 1, wherein: and a space for accommodating the mandrel to pass is reserved between the swing arm and the inner rotary wheel support arm.
3. The pair-wheel spinning apparatus for forming a large-diameter thin-walled bottom closure structure according to claim 1, wherein: the external support comprises four stand columns, a top plate and a bottom plate, the bottom plate penetrates through two sides of the base and is fixed on the bottom surface, the four stand columns are fixedly installed on four corners of the bottom plate, the top plate is installed at the top ends of the stand columns, and the tail top is installed in the center area of the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509018.7A CN110090882B (en) | 2019-06-13 | 2019-06-13 | Vertical type opposite-wheel spinning device for forming large-diameter thin-wall bottom sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509018.7A CN110090882B (en) | 2019-06-13 | 2019-06-13 | Vertical type opposite-wheel spinning device for forming large-diameter thin-wall bottom sealing structure |
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| CN110090882A CN110090882A (en) | 2019-08-06 |
| CN110090882B true CN110090882B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910509018.7A Active CN110090882B (en) | 2019-06-13 | 2019-06-13 | Vertical type opposite-wheel spinning device for forming large-diameter thin-wall bottom sealing structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112191729B (en) * | 2020-09-11 | 2022-10-14 | 上海应用技术大学 | Core-free conical piece spinning forming machine |
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2019
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