CN220161687U - Hinge type flexible internal support device for thin-wall cylindrical part - Google Patents
Hinge type flexible internal support device for thin-wall cylindrical part Download PDFInfo
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- CN220161687U CN220161687U CN202321699683.5U CN202321699683U CN220161687U CN 220161687 U CN220161687 U CN 220161687U CN 202321699683 U CN202321699683 U CN 202321699683U CN 220161687 U CN220161687 U CN 220161687U
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- 238000003466 welding Methods 0.000 abstract description 14
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- 230000008602 contraction Effects 0.000 abstract description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005097 cold rolling Methods 0.000 description 1
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Abstract
The utility model discloses a hinge type flexible internal support device for a thin-wall cylindrical part, which relates to the technical field of welding assistance and comprises a fixing assembly, a driving assembly and an internal support assembly; the fixing component comprises a blocking plate, a limiting pipe, a first bearing, a second bearing, a bearing end cover, a connecting plate, a round nut and a small round nut, and a through groove is formed in the side wall of the limiting pipe; the driving assembly comprises a screw rod, a screw rod nut and a pushing plate; the inner supporting component comprises a linear guide rail, a sliding block and a round supporting block, and a groove is formed in the middle of the outer side of the round supporting block. According to the utility model, the hinge structure is adopted, the screw rod rotates in a certain direction, the round supporting block is driven by the hinge structure, the expansion and contraction actions of the driving block are realized, the structure can realize internal supporting and flexible self-adaption, and the shape and position precision of the part can be ensured in the welding process.
Description
Technical Field
The utility model relates to the technical field of welding assistance, in particular to a hinge type flexible internal support device for a thin-wall cylindrical part.
Background
The thin-wall cylinder is widely applied to industrial production, such as the fields of automobiles, aerospace, ships and the like. In the production process, the deformation of the inner wall of the thin-wall cylinder can be avoided only by the support of the inner support device, and three widely used thin-wall cylinder processing methods exist at present: hammer forming, cold rolling and spinning. During processing, a welding process is often required. However, the thin-walled cylinder is easy to deform in the welding process, and especially in the welding of large-size thin-walled cylinders, the problems of coaxiality, roundness, straightness and other form and position tolerances, misalignment and the like of welded parts are difficult to ensure. In the prior art, the shape and position precision of the thin-wall body is ensured by adopting a bracket, a clamping plate, compaction and other modes, but the methods have a plurality of limitations, such as the bracket is easy to influence the supporting of the thin-wall body, the clamping plate is easy to deform, the compaction force is difficult to control and other problems; some solutions such as supporting arms and supporting molds are adopted for internal supporting, but the methods still have some defects, the supporting arms are easy to be stressed intensively, and the supporting molds are difficult to adapt to different thin-wall body shapes.
Accordingly, a hinged flexible inner support device for a thin walled cylinder is proposed.
Disclosure of Invention
The utility model mainly aims to provide a hinge type flexible internal support device for a thin-wall cylindrical part, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a hinge type flexible internal stay device for a thin-wall cylindrical part comprises a fixing component, a driving component and an internal stay component;
the fixing assembly comprises a blocking plate, a limiting pipe, a first bearing, a second bearing, a bearing end cover, a connecting plate, a round nut and a small round nut, and a through groove is formed in the side wall of the limiting pipe;
the driving assembly comprises a screw rod, a screw rod nut and a pushing plate;
the inner supporting assembly comprises a linear guide rail, a sliding block and a supporting round block, and a groove is formed in the middle of the outer side of the supporting round block;
the first bearing is fixed in the closure plate, the second bearing is fixed at the end part of the limiting pipe, one end of the screw rod is connected with the first bearing, the other end of the screw rod is connected with the second bearing, one side of the first bearing is fastened through a round nut, the other side of the first bearing is fastened through a bearing end cover, the second bearing is fastened through a small round nut, the bottom of the limiting pipe is fixedly connected with the connecting plate, a linear guide rail is arranged on the connecting plate, a slide block is connected onto the linear guide rail in a sliding manner, a round supporting block is fixedly connected onto the slide block, a screw rod nut is arranged on the surface of the screw rod, located in the inner section of the limiting pipe, of the screw rod nut, and the screw rod nut is movably connected with the round supporting block through a pushing plate.
Further preferably, one end of the pushing plate is connected to the screw nut and extends out of the through groove on the side wall of the limiting pipe, and the other end of the pushing plate is movably connected with the round supporting block.
Preferably, the round supporting block moves linearly along the axial direction along with the rotation of the screw rod.
Preferably, the inner support assembly and the pushing plate are three groups, which are uniformly distributed along the circumference, and the included angle between every two adjacent groups is 120 degrees.
Preferably, the bearing end cover is connected with the blocking plate through a screw.
Preferably, the pushing plate is connected with the screw nut and the round supporting block through the willow nail.
Preferably, the supporting round block is connected with the sliding block through a cylindrical pin.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the hinge structure is adopted, the screw rod rotates in a certain direction, the round supporting block is driven by the hinge structure, the expansion and contraction actions of the driving block are realized, the structure can realize internal supporting and flexible self-adaption, and the shape and position precision of the part can be ensured in the welding process.
2. The utility model is composed of a fixing component, a driving component and an internal supporting component, thus forming a complete internal supporting system, and the device has simple structure, is easy to manufacture and install, can adapt to different shapes and sizes of thin-wall bodies, has higher practicability and economy, and can greatly improve the welding precision and quality of the thin-wall bodies.
3. The internal support assembly adopts a self-centering mode to tighten the two butt-joint thin-wall cylinders, so that the internal support assembly can be positioned and fixed more accurately. The mode can better ensure the coaxiality, roundness, straightness and other form and position tolerances, misalignment amount and other problems between parts.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the present utility model in a contracted state;
fig. 5 is a schematic view of the open state of the present utility model.
Parts and numbers in the figure:
1-a round nut; 2-a first bearing; 3-bearing end caps; 4-blocking plate; 5-screws; 6, connecting a plate; 7-linear guide rails; 8-a sliding block; 9-supporting round blocks; 10-cylindrical pins; 11-pushing plate; 12-willow nails; 13-limiting pipes; 14-a second bearing; 15-a lead screw nut; 16-screw rod; 17-small round nuts.
Detailed Description
The utility model is further illustrated, but not limited, by the following figures and examples, any technical solution based on transformation or reasoning of the utility model falling within the scope of protection of the utility model.
1-3, the utility model is a hinged flexible internal bracing device for a thin-walled cylindrical member, which comprises a fixing component, a driving component and an internal bracing component; the fixing component comprises a blocking plate 4, a limiting pipe 13, a first bearing 2, a second bearing 14, a bearing end cover 3, a connecting plate 6, a round nut 1 and a small round nut 17, and a through groove is formed in the side wall of the limiting pipe 13; the driving assembly comprises a screw rod 16, a screw rod nut 15 and a pushing plate 11; the inner support assembly comprises a linear guide rail 7, a sliding block 8 and a support round block 9, and a groove is formed in the middle of the outer side of the support round block 9;
the first bearing 2 is fixed in the closure plate 4, the second bearing 14 is fixed at the end of the limiting pipe 13, one end of the screw rod 16 is connected with the first bearing 2, the other end of the screw rod 16 is connected with the second bearing 14, one side of the first bearing 2 is fastened through the round nut 1, the other side of the first bearing 2 is fastened through the bearing end cover 3, the second bearing 14 is fastened through the small round nut 17, the bottom of the limiting pipe 13 is fixedly connected with the connecting plate 6, the connecting plate 6 is provided with the linear guide rail 7, the linear guide rail 7 is slidingly connected with the sliding block 8, the sliding block 8 is fixedly connected with the round supporting block 9, the screw rod 16 is positioned on the surface of the inner section of the limiting pipe 13 and is provided with the screw rod nut 15, and the screw rod nut 15 is movably connected with the round supporting block 9 through the pushing plate 11.
The device comprises a fixing component, a driving component and an inner supporting component, a complete inner supporting system is formed, the fixing component is used for fixing a screw rod 16 and a linear guide rail 7, the driving component rotates in a certain direction through the screw rod 16, a round supporting block 9 is driven through a hinge structure, the opening and the contraction actions of the round supporting block 9 are achieved, the inner supporting component is used for expanding and tightening two butt-joint thin-wall cylinders in a self-centering mode, the structure can achieve inner supporting and flexible self-adaptation, and the shape and position precision of parts can be guaranteed in the welding process.
It is further preferable that one end of the pushing plate 11 is connected to the screw nut 15 and extends out from the through groove of the side wall of the limiting tube 13, and the other end is movably connected with the round supporting block 9. The screw nut 15 moves along the screw 16, the pushing plate 11 drives the round supporting block 9 to move, and the through groove on the side wall of the limiting pipe 13 gives up the space for the pushing plate 11 to move.
Preferably, the round supporting block 9 moves linearly along the axial direction along with the rotation of the screw rod 16.
Preferably, the inner support assembly and the pushing plate 11 are three groups, which are uniformly distributed along the circumference, and the included angle between every two adjacent groups is 120 degrees.
Preferably, the bearing end cap 3 is connected to the closure plate 4 by screws 5.
Preferably, the pushing plate 11 is connected with the screw nut 15 and the round supporting block 9 through the willow nail 12.
Preferably, the supporting cylindrical block 9 is connected with the sliding block 8 through a cylindrical pin 10.
The working process comprises the following steps:
the tool is matched with welding equipment, a three-jaw chuck, a tailstock and a center frame to form a high-precision assembly system, the shrinkage process of the device is shown in figure 4, along with the rotation of a screw rod 16, a screw rod nut 15 rotates due to threads, linear motion is generated along with the rotation of the screw rod nut, and the movement direction is not generated due to the fact that a screw rod nail 12 only rotates, under the force transmission effect of the screw rod nut 15, a pushing plate 11 and the screw rod nail 12 correspondingly rotate, so that a round supporting block 9 is driven to generate relative motion on a linear guide rail 7, and the round supporting block 9 is shrunk; as shown in fig. 5, the welding position of the cylindrical part to be welded and the groove in the middle of the outer side of the round supporting block 9 are positioned on the same plane, the screw rod 16 is rotated in the other direction, the screw rod nut 15 rotates along with the screw rod nut due to the linear motion, under the force transmission action of the screw rod nut 15, the pushing plate 11 and the willow nail 12 generate corresponding rotation, and further drive the round supporting block 9 to generate relative motion on the linear guide rail 7, so that the round supporting block 9 opens, the round supporting block 9 simultaneously tightens two adjacent cylinders in the 360-degree direction, and the two cylinders are deformed and not concentric, thereby realizing circle supporting, ensuring concentricity, ensuring coaxiality among the cylinders to meet the drawing requirement, and under the dead load operation, the round supporting block 9 cannot automatically loose due to the self-locking function, and the shrinkage action of the screw rod 16 is performed under the action of the screw rod nut 15, the pushing plate 11, the willow nail 12 and the like until the welding is finished, so that the inner supporting clamp is taken out from the part.
In summary, the hinge type flexible internal support device adopts a hinge structure and a three-part construction mode, so that the problems that the coaxiality, roundness, straightness and other form and position tolerances, misalignment and the like of welded parts cannot be guaranteed due to welding deformation of a thin-wall cylinder in the prior art can be solved better. Meanwhile, the self-centering tensioning mode of the device can be used for more accurately positioning and fixing, and the welding quality and the production efficiency of products are improved.
The foregoing shows and describes the basic principles and main features of the present utility model and its advantages. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. A flexible internal stay device of hinge type for thin wall tubular part, its characterized in that: the device comprises a fixing component, a driving component and an internal stay component;
the fixing assembly comprises a blocking plate (4), a limiting pipe (13), a first bearing (2), a second bearing (14), a bearing end cover (3), a connecting plate (6), a round nut (1) and a small round nut (17), and a through groove is formed in the side wall of the limiting pipe (13);
the driving assembly comprises a screw (16), a screw nut (15) and a pushing plate (11);
the inner supporting assembly comprises a linear guide rail (7), a sliding block (8) and a supporting round block (9), and a groove is formed in the middle of the outer side of the supporting round block (9);
the novel bearing structure is characterized in that the first bearing (2) is fixed in the blocking plate (4), the second bearing (14) is fixed at the end part of the limiting pipe (13), one end of the screw rod (16) is connected with the first bearing (2), the other end of the screw rod is connected with the second bearing (14), one side of the first bearing (2) is fastened through the round nut (1), the other side of the first bearing (2) is fastened through the bearing end cover (3), the second bearing (14) is fastened through the small round nut (17), the bottom of the limiting pipe (13) is fixedly connected with the connecting plate (6), the connecting plate (6) is provided with the linear guide rail (7), the linear guide rail (7) is connected with the sliding block (8) in a sliding mode, the supporting round block (9) is fixedly connected with the surface of the inner section of the screw rod (16) located in the limiting pipe (13), and the screw rod nut (15) is movably connected with the supporting round block (9) through the pushing plate (11).
2. A hinged flexible inner strut apparatus for a thin walled tubular member as claimed in claim 1, wherein: one end of the pushing plate (11) is connected to the screw nut (15) and extends out of the through groove on the side wall of the limiting pipe (13), and the other end of the pushing plate is movably connected with the round supporting block (9).
3. A hinged flexible inner strut apparatus for a thin walled tubular member as claimed in claim 1, wherein: the round supporting block (9) moves linearly along the axial radial direction along with the rotation of the screw rod (16).
4. A hinged flexible inner strut apparatus for a thin walled tubular member as claimed in claim 1, wherein: the inner support assembly and the pushing plate (11) are three groups which are uniformly distributed along the circumference, and the included angle between every two adjacent groups is 120 degrees.
5. A hinged flexible inner bracing device for thin walled tubular workpieces according to any of claims 1-4, wherein: the bearing end cover (3) is connected with the blocking plate (4) through a screw (5).
6. A hinged flexible inner bracing device for thin walled tubular workpieces according to any of claims 1-4, wherein: the pushing plate (11) is connected with the screw nut (15) and the supporting round block (9) through the willow nails (12).
7. A hinged flexible inner bracing device for thin walled tubular workpieces according to any of claims 1-4, wherein: the round supporting block (9) is connected with the sliding block (8) through a cylindrical pin (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321699683.5U CN220161687U (en) | 2023-06-30 | 2023-06-30 | Hinge type flexible internal support device for thin-wall cylindrical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321699683.5U CN220161687U (en) | 2023-06-30 | 2023-06-30 | Hinge type flexible internal support device for thin-wall cylindrical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220161687U true CN220161687U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321699683.5U Active CN220161687U (en) | 2023-06-30 | 2023-06-30 | Hinge type flexible internal support device for thin-wall cylindrical part |
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| Country | Link |
|---|---|
| CN (1) | CN220161687U (en) |
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2023
- 2023-06-30 CN CN202321699683.5U patent/CN220161687U/en active Active
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