CN214236146U - External forging device for stepped shaft of nuclear power station - Google Patents
External forging device for stepped shaft of nuclear power station Download PDFInfo
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- CN214236146U CN214236146U CN202022825060.0U CN202022825060U CN214236146U CN 214236146 U CN214236146 U CN 214236146U CN 202022825060 U CN202022825060 U CN 202022825060U CN 214236146 U CN214236146 U CN 214236146U
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Abstract
The utility model discloses a nuclear power step shaft body external forging device, which comprises a rotary workbench and a press, wherein the rotary workbench is used for bearing a workpiece to be processed, the rotary workbench is positioned outside the press, a bridging anvil bar is movably connected onto a movable cross beam of the press through a connecting component, the rear end of the bridging anvil bar is movably supported on a supporting column, the lower surface of the front end of the bridging anvil bar is a forging upper anvil surface, and the forging upper anvil surface is positioned above the rotary workbench; the top surface of the support column is provided with a support cambered surface, the bridging anvil bar is provided with a bearing cambered surface matched with the support cambered surface, the upper surface of the bridging anvil bar is provided with a pressure-bearing cambered surface at a position opposite to the connecting member, the connecting member is provided with a pressure-applying cambered surface corresponding to the pressure-bearing cambered surface, the front end surface of the bridging anvil bar is an inwards concave cylindrical surface, and the inwards concave cylindrical surface is vertical to the forging upper anvil surface. Adopt the utility model discloses a nuclear power step axis body external forging device can realize the forging and pressing processing to step axle class component flange limit, and simple structure, convenient to use.
Description
Technical Field
The utility model relates to a forging process equips, especially relates to a forging device of large-scale step axle class component.
Background
The nuclear power equipment has high safety performance requirements, main components are large components, and the nuclear power equipment components have high mechanical performance requirements, so that the large components in the nuclear power equipment are mostly machined and manufactured by adopting forgings. For the forging of large forgings, a large forging press is required, but the large press cannot completely meet the forging requirements due to different processing parts of the forgings, for example, a hanging basket cylinder in nuclear power equipment is provided with a flange at one end of the cylinder, so that the member is in a step shaft shape, the periphery of the flange edge needs to be forged and formed in the forging process, the height of the hanging basket cylinder member is about 4.8 meters, necessary tools such as a rotary worktable and the like are added, and even the large press with the stroke of 5 meters cannot forge and press the flange edge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a nuclear power step axis body external forging device is provided to the aforesaid that exists to prior art, it can realize processing simple structure, convenient to use to the forging and pressing on step axle class component flange limit.
In order to solve the technical problem, the utility model discloses an external forging device of nuclear power step axis body, including being used for bearing the weight of the swivel work head and the press of the work piece of being processed, swivel work head is located the press outside, has bridging anvil stick through connecting element swing joint on the movable cross beam of press, and connecting element is located between the front end and the rear end of bridging anvil stick, and the rear end movable support of bridging anvil stick is on the support post, and the front end lower surface of bridging anvil stick is for forging the upper anvil face, should forge the upper anvil face and be located swivel work head top; the top surface of the support column is provided with a support cambered surface, the bridging anvil bar is provided with a bearing cambered surface matched with the support cambered surface, the upper surface of the bridging anvil bar is provided with a pressure-bearing cambered surface at a position opposite to the connecting member, the connecting member is provided with a pressure-applying cambered surface corresponding to the pressure-bearing cambered surface, the front end surface of the bridging anvil bar is an inwards concave cylindrical surface, and the inwards concave cylindrical surface is vertical to the forging upper anvil surface.
In the structure, the rotary worktable is positioned outside the press, the movable cross beam of the press is movably connected with the bridging anvil rod through the connecting component, the connecting component is positioned between the front end and the rear end of the bridging anvil rod, the rear end of the bridging anvil rod is movably supported on the supporting column, the lower surface of the front end of the bridging anvil rod is a forging upper anvil surface which is positioned above the rotary worktable, the processed step shaft type large-scale component is born on the rotary worktable outside the press and can not be limited by the size of the internal space of the press, the forging and pressing of the flange edge of the processed component are not realized by the upper anvil positioned in the press conventionally, but are realized by the forging upper anvil surface on the lower surface of the front end of the bridging anvil rod, the rear end of the bridging anvil rod is supported on the supporting column, and the movable cross beam of the press is driven by the connecting component to enable the front end of the bridging anvil rod to move up and down, therefore, forging and pressing movement is realized, the rotation of the rotary workbench is matched, the forging and pressing processing of the whole flange periphery of the stepped shaft component can be realized, the structure is simple, the use is very convenient, and the problem of forging and processing of large components exceeding the size of the inner space of the press is effectively solved.
The top surface of the supporting column is provided with a supporting arc surface, the bridging anvil bar is provided with a bearing arc surface matched with the supporting arc surface, the upper surface of the bridging anvil bar is provided with a pressure-bearing arc surface opposite to the connecting member, the connecting member is provided with a pressure-applying arc surface corresponding to the pressure-bearing arc surface, the front end surface of the bridging anvil bar is an inwards concave cylindrical surface which is vertical to the forging upper anvil surface, and the supporting column and the bridging anvil bar and the connecting member are in contact through the arc surfaces, so that the contact area can be effectively increased, the flexible movement of the bridging anvil bar is ensured, and the bridging anvil bar is positioned; the front end face of the bridging anvil rod is an inwards concave cylindrical surface, so that the front end of the bridging anvil rod is close to the cylinder part of the processed component in the width direction, the forging upper anvil surface of the bridging anvil rod can be in comprehensive contact with the flange edge of the forged part in the width direction of the bridging anvil rod, and a better forging effect is achieved.
The utility model discloses a preferred embodiment, the transversal rectangle of personally submitting of bridging hammering block stick. By adopting the implementation mode, the bridging anvil bar with the rectangular cross section has higher bending resistance, can meet the use requirement and is convenient to manufacture.
In another preferred embodiment of the present invention, the connecting member is a frame-shaped member, the inner hole of the frame-shaped connecting member corresponds to the cross-sectional shape of the bridging anvil, and the bridging anvil is inserted into the hole of the frame-shaped connecting member. By adopting the embodiment, the bridging anvil rod is inserted into the inner hole of the connecting component which is in the frame shape and the inner hole shape of which corresponds to the cross section shape of the bridging anvil rod, on one hand, the connecting component can conveniently drive the bridging anvil rod to move up and down, on the other hand, the inner hole of the connecting component can play a good limiting role in the bridging anvil rod, and the motion stability of the bridging anvil rod in the operation process is ensured.
In another preferred embodiment of the present invention, the support curved surface is a convex curved surface. With this embodiment, the support post is easy to manufacture.
The utility model discloses further preferred embodiment, the support cambered surface is sphere or face of cylinder, and the axis level setting of this face of cylinder just is perpendicular with the length direction of bridging hammering block stick. By adopting the embodiment, the large contact area between the supporting column and the bridging anvil rod can be ensured, and the bridging anvil rod moves flexibly.
The utility model discloses another further preferred embodiment, the pressure-bearing cambered surface is the cambered surface of evagination. By adopting the embodiment, the contact part of the bridging anvil rod and the connecting component has higher strength and long service life.
The utility model discloses a further preferred embodiment, the pressure-bearing cambered surface is sphere or face of cylinder, and the axis level of this face of cylinder sets up and is perpendicular with the length direction of bridging hammering block stick. By adopting the embodiment, the large contact area between the connecting component and the bridging anvil rod can be ensured, and the bridging anvil rod moves flexibly.
In a further preferred embodiment of the present invention, the anvil surface protrudes from the lower surface of the bridging anvil bar. By adopting the embodiment, the bridging anvil rod can be ensured not to influence the service life due to abrasion at the forged upper anvil surface.
Drawings
The following provides a further detailed description of the nuclear power step shaft body external forging device according to the present invention with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of an embodiment of an external forging apparatus for a nuclear power station stepped shaft of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1, partially in section, at the bridging anvil location;
FIG. 3 is a schematic view of the construction of the bridging anvil bar of the construction of FIG. 1;
fig. 4 is a top view of fig. 3.
In the figure: 1-press, 2-movable beam, 3-processed forge piece, 4-bridging anvil rod, 41-forged upper anvil surface, 42-pressure-bearing arc surface, 43-bearing arc surface, 5-connecting member, 6-rotary workbench, 7-support arc surface and 8-support column.
Detailed Description
In the nuclear power step shaft body external forging device shown in figure 1, a processed forging 3 is a forging for a nuclear power hanging basket barrel body with the shape of a step shaft, one end of the processing forging piece is provided with a flange edge which needs to be forged and formed, the flange end of the processed forging piece 3 is arranged on a rotary workbench 6 downwards, the circumferential position can be changed by the rotation driven by the rotary worktable 6, the rotary worktable 6 is positioned at the outer side of the press 1, the press 1 is a four-column press, a bridging anvil rod 4 is movably connected to a movable cross beam 2 of a press 1 through a connecting member 5, the connecting member 5 is positioned between the front end and the rear end of the bridging anvil rod 4, the connecting member 5 is fixedly connected to the movable cross beam 2, as a preferred embodiment, referring to fig. 2, the connecting member 5 is a frame-shaped member, the shape of an inner hole of the frame-shaped connecting member 5 corresponds to the shape of the cross section of the bridging anvil rod 4, and the bridging anvil rod 4 is inserted into the hole of the frame-shaped connecting member 5; the lower surface of the front end of the bridging anvil rod 4 is a forging upper anvil surface 41, the forging upper anvil surface 41 protrudes out of the lower surface of the bridging anvil rod 4, the forging upper anvil surface 41 is positioned above the rotary workbench 6 and is opposite to the processed surface of the processed forge piece 3, the rear end of the bridging anvil rod 4 is movably supported on a support column 8, the support column 8 is installed on the workbench of the press 1, the height of the support column 8 corresponds to the height position of the processed surface of the processed forge piece 3, and the forging upper anvil surface 41 of the bridging anvil rod 4 basically keeps a horizontal state to forge the processed surface of the processed forge piece 3; the top surface of the support column 8 is provided with a support cambered surface 7, the support cambered surface 7 is an outward convex cambered surface, the outward convex support cambered surface 7 is preferably a cylindrical surface, the axis of the cylindrical surface is horizontally arranged and is vertical to the length direction of the bridging anvil rod 4, of course, the support cambered surface 7 can also be a spherical surface, referring to fig. 3 and 4, the bridging anvil rod 4 is provided with a bearing cambered surface 43 matched with the support cambered surface 7, the cross section of the bridging anvil rod 4 is rectangular, the upper surface of the bridging anvil rod 4 is provided with a pressure-bearing cambered surface 42 at the position opposite to the connecting member 5, the pressure-bearing cambered surface 42 is an outward convex cambered surface, the outward convex pressure-bearing cambered surface 42 is preferably a cylindrical surface, the axis of the cylindrical surface is horizontally arranged and is vertical to the length direction of the bridging anvil rod 4, of course, the pressure-bearing cambered surface 42 can also be a spherical surface, the connecting member 5 is provided with a pressure-applying cambered surface corresponding to the pressure-bearing cambered surface 42, as shown in fig. 4, the front end surface of the bridging anvil rod 4 is a concave cylindrical surface which is perpendicular to the forging upper anvil surface 41.
In the forging and pressing process, the movable cross beam 2 of the press 1 drives the bridging anvil rod 4 to move (swing) up and down by taking a contact part between the rear end of the bridging anvil rod 4 and the supporting column 8 as a fulcrum through the connecting component 5, so that forging and pressing movement is realized, and the forging and pressing processing of the whole flange of the forging of the hanging basket cylinder of the step shaft class is realized by matching with the intermittent rotation of the rotary worktable 6.
The above description has been presented only for the purpose of illustrating certain preferred embodiments of the invention, and it is not to be taken as a limitation on the invention, as many modifications and variations are possible. For example, the height of the support column 8 can be adjusted up and down to accommodate the processing of workpieces with different heights of the processed parts. Therefore, any improvement and changes made on the basis of the basic principle of the present invention should be considered as falling within the protection scope of the present invention.
Claims (8)
1. The utility model provides a nuclear power step axis body external forging device, is including being used for bearing swivel work head (6) and press (1) by the processing work piece, its characterized in that: the rotary workbench (6) is positioned on the outer side of the press (1), a bridging anvil rod (4) is movably connected onto a movable cross beam (2) of the press (1) through a connecting member (5), the connecting member (5) is positioned between the front end and the rear end of the bridging anvil rod (4), the rear end of the bridging anvil rod (4) is movably supported on a support column (8), the lower surface of the front end of the bridging anvil rod (4) is a forging upper anvil surface (41), and the forging upper anvil surface (41) is positioned above the rotary workbench (6); the top surface of the supporting column (8) is provided with a supporting arc surface (7), the bridging anvil rod (4) is provided with a bearing arc surface (43) which is matched with the supporting arc surface (7), the upper surface of the bridging anvil rod (4) is provided with a pressure-bearing arc surface (42) at the position opposite to the connecting member (5), the connecting member (5) is provided with a pressure-applying arc surface corresponding to the pressure-bearing arc surface (42), the front end surface of the bridging anvil rod (4) is an inwards concave cylindrical surface, and the inwards concave cylindrical surface is vertical to the forging upper anvil surface (41).
2. The nuclear power step shaft body external forging device of claim 1, wherein: the cross section of the bridging anvil rod (4) is rectangular.
3. The external forging device for the nuclear power step shaft body as claimed in claim 1 or 2, wherein: the connecting component (5) is a frame-shaped component, the shape of an inner hole of the frame-shaped connecting component (5) corresponds to the shape of the cross section of the bridging anvil rod (4), and the bridging anvil rod (4) is inserted into the hole of the frame-shaped connecting component (5).
4. The nuclear power step shaft body external forging device of claim 1, wherein: the supporting cambered surface (7) is an outward convex cambered surface.
5. The external forging device for the nuclear power step shaft body of claim 1 or 4, wherein: the supporting cambered surface (7) is a spherical surface or a cylindrical surface, and the axis of the cylindrical surface is horizontally arranged and is vertical to the length direction of the bridging anvil rod (4).
6. The nuclear power step shaft body external forging device of claim 1, wherein: the pressure-bearing cambered surface (42) is an outward convex cambered surface.
7. The external forging device for the nuclear power step shaft body as claimed in claim 1 or 6, wherein: the pressure-bearing cambered surface (42) is a spherical surface or a cylindrical surface, and the axis of the cylindrical surface is horizontally arranged and is vertical to the length direction of the bridging anvil rod (4).
8. The nuclear power step shaft body external forging device of claim 1, wherein: the forging upper anvil surface (41) protrudes from the lower surface of the bridging anvil rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825060.0U CN214236146U (en) | 2020-11-30 | 2020-11-30 | External forging device for stepped shaft of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022825060.0U CN214236146U (en) | 2020-11-30 | 2020-11-30 | External forging device for stepped shaft of nuclear power station |
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| CN214236146U true CN214236146U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022825060.0U Active CN214236146U (en) | 2020-11-30 | 2020-11-30 | External forging device for stepped shaft of nuclear power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247846A (en) * | 2021-12-23 | 2022-03-29 | 上海交通大学 | External forging device of large ring piece |
| CN114346159A (en) * | 2022-01-07 | 2022-04-15 | 上海交通大学 | External forging equipment for large disc type component and forging method thereof |
-
2020
- 2020-11-30 CN CN202022825060.0U patent/CN214236146U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247846A (en) * | 2021-12-23 | 2022-03-29 | 上海交通大学 | External forging device of large ring piece |
| CN114346159A (en) * | 2022-01-07 | 2022-04-15 | 上海交通大学 | External forging equipment for large disc type component and forging method thereof |
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