Tooling for replacing a ring rolling mandrel
By using tooling for changing the core roller of the ring rolling machine, the core roller mold can be quickly changed using support and limiting components, which solves the problem of time-consuming and labor-intensive core roller mold changing and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVIC EXCELLENCE FORGING WUXI
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-16
Smart Images
Figure CN224359302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of horizontal ring rolling machine core roller technology, and in particular to a tooling for replacing ring rolling machine core rollers. Background Technology
[0002] A ring rolling mill (also known as a ring expanding mill or ring rolling mill) is a key piece of equipment used to manufacture seamless ring forgings through localized plastic deformation. It is widely used in the production of ring-shaped parts such as bearing rings, gear rings, flanges, and wheel hubs. In the ring rolling process, the mandrel die works in conjunction with the main roll to roll the ring blank radially and axially, reducing its wall thickness, expanding its diameter, and forming the desired cross-sectional shape. Because the mandrel die is subjected to enormous loads and frictional wear during the rolling process, it needs to be frequently replaced to ensure processing accuracy and product quality.
[0003] Currently, the conventional method is to disassemble the mandrel and mandrel mold together when the mandrel mold needs to be replaced. This method of completely disassembling the mandrel and mandrel mold is not only time-consuming and labor-intensive, but also affects machine use and production efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a tooling for replacing the core roller of a ring rolling machine, which can reduce the core roller mold replacement time, reduce labor costs, and improve production efficiency.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A tooling for replacing the core roller of a ring rolling machine is provided, capable of replacing a washer ring and a core roller mold sleeved on the outer peripheral wall of the core roller. The washer ring and the core roller mold are sequentially distributed along the axial direction of the core roller. The core roller can move relative to the washer ring and the core roller mold, and the washer ring can be fixed relative to the core roller. The tooling for replacing the core roller of a ring rolling machine includes:
[0007] The first limiting member is used to fix the core roller to the outer peripheral wall;
[0008] The second limiting member can be detachably connected to the outer peripheral wall of the core roller. The first and second limiting members are distributed at intervals along the axial direction of the core roller, and the gasket and the core roller mold can be clamped between the first and second limiting members.
[0009] Support components, which can support the core roller mold.
[0010] Preferably, the first limiting member is a locking nut, which is threadedly connected to the outer peripheral wall of the core roller.
[0011] Preferably, the first limiting member is a first limiting block, and the first limiting block is connected to or welded to the core roller by a first fastener.
[0012] Preferably, the second limiting member is a second limiting block, which is threadedly connected to the outer peripheral wall of the core roller via a second fastener.
[0013] Preferably, the support member is a support ring, which is sleeved outside the core roller.
[0014] Preferably, the support member is provided with a relief groove, and the second limiting member can pass through the relief groove and be connected to the core roller.
[0015] Preferably, the side of the support member supporting the core roller mold is the first support surface, and the side of the second limiting member that abuts against the core roller mold is the second support surface. The first support surface and the second support surface are flush so that the second limiting member can selectively enter and exit the clearance groove.
[0016] Preferably, the tooling for changing the core roller also includes a lifting ring assembly, which includes two lifting rings, one of which is threaded to the core roller and the other of which is threaded to the pad ring. The lifting ring connecting the core roller is located on the side of the first limiting member away from the pad ring, and the two lifting rings are connected by a lifting rope.
[0017] Preferably, the tooling for changing the core roller also includes a drive unit, the output end of which is connected to the core roller, and the drive unit is capable of driving the core roller to move along its own axial direction toward or away from the core roller mold.
[0018] Preferably, the driving component is a pneumatic cylinder or a hydraulic cylinder.
[0019] The beneficial effects of this utility model are:
[0020] This utility model provides a tooling for replacing the core roller of a ring rolling machine. When replacing the core roller mold according to actual needs, firstly, a support member is placed directly below the core roller mold, and the support member is used to support the core roller mold. Then, the second limiting member is removed from the core roller. At this time, only the support member supports the core roller mold. Since the second limiting member is no longer supporting and limiting the core roller mold, the core roller mold can slide relative to the core roller. Next, the core roller is lifted along its own axis, which allows for quick removal of the core roller mold, enabling the core roller to separate from the core roller mold. The core roller mold is then removed and replaced with a new core roller mold. After the new core roller mold is placed on the support member, the core roller is lowered along its own axis to pass through the core roller mold. After the washer ring abuts against the core roller mold, the second limiting member is installed on the core roller, clamping and fixing the washer ring and the core roller mold to the core roller, completing the tooling replacement work.
[0021] By disassembling and assembling the second limiting component and using the support component to support the core roller mold, the core roller can be raised and lowered, allowing for quick replacement of the core roller mold without having to disassemble the core roller and core roller mold together. This simplifies the disassembly process, greatly reduces the core roller mold replacement time, reduces labor costs, and improves production efficiency. Attached Figure Description
[0022] Figure 1 This is an assembly drawing of the tooling for replacing the core roller of a ring rolling mill, provided by an embodiment of this utility model, before the core roller replacement mold.
[0023] Figure 2 This is an assembly drawing of the tooling for replacing the core roller of a ring rolling mill, provided by an embodiment of this utility model, after the core roller replacement mold has been installed.
[0024] Figure 3 This is a schematic diagram of the support ring provided in an embodiment of the present invention.
[0025] In the diagram: 1. Core roller; 2. Washer ring; 3. Core roller mold; 4. First limiting component; 5. Second limiting component; 6. Support component; 7. Lifting ring; 8. Lifting rope. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0030] like Figure 1-3 As shown, an embodiment of this utility model provides a tooling for replacing the core roller of a ring rolling machine. It can replace the pad ring 2 and the core roller mold 3 sleeved on the outer peripheral wall of the core roller 1. The pad ring 2 and the core roller mold 3 are sequentially distributed along the axial direction of the core roller 1. The core roller 1 can move relative to the pad ring 2 and the core roller mold 3, and the pad ring 2 can be fixed relative to the core roller 1. The tooling for replacing the core roller of the ring rolling machine includes a first limiting member 4, a second limiting member 5, and a support member 6. The first limiting member 4 is fixed to the outer peripheral wall of the core roller 1, and the second limiting member 5 can be detachably connected to the outer peripheral wall of the core roller 1. The first limiting member 4 and the second limiting member 5 are spaced apart along the axial direction of the core roller 1, and the pad ring 2 and the core roller mold 3 can be clamped between the first limiting member 4 and the second limiting member 5. The support member 6 can support the core roller mold 3.
[0031] When replacing the core roller mold 3 according to actual needs, first place the support 6 directly below the core roller mold 3 and use the support 6 to support the core roller mold 3; then remove the second limiting member 5 from the core roller 1. At this time, only the support 6 supports the core roller mold 3. Since the second limiting member 5 is no longer supporting and limiting the core roller mold 3, the core roller mold 3 can slide relative to the core roller 1; next, lift the core roller 1 along its own axis to quickly remove the core roller mold 3, allowing the core roller 1 to separate from the core roller mold 3. Remove the core roller mold 3 and replace it with a new core roller mold 3. After placing the new core roller mold 3 on the support 6, lower the core roller 1 along its own axis so that it passes through the core roller mold 3. After the washer ring 2 abuts against the core roller mold 3, install the second limiting member 5 on the core roller 1, so that the washer ring 2 and the core roller mold 3 are clamped and fixed to the core roller 1. At this time, lift the core roller 1, remove the support 6, and complete the tooling replacement work.
[0032] By disassembling and assembling the second limiting component 5 and using the support component 6 to support the core roller mold 3, the core roller 1 can be raised and lowered, allowing for quick replacement of the new core roller mold 3 without having to disassemble the core roller 1 and the core roller mold 3 together. This simplifies the disassembly process, greatly reduces the replacement time of the core roller mold 3, reduces labor costs, and improves production efficiency.
[0033] When the core roller 1 is working, the middle part pad ring 2 and the core roller mold 3 are clamped and fixed by the first limiting member 4 and the second limiting member 5. No fasteners are needed to fix the core roller mold 5 to the core roller 1, which reduces the processing cost of the core roller mold 5.
[0034] For example, the first limiting member 4 is a locking nut, which is threadedly connected to the outer peripheral wall of the core roller 1. This design is simple and easy to manufacture. In other embodiments, the first limiting member 4 can also be a first limiting block, which is connected to or welded to the core roller 1 via a first fastener. Specifically, the first fastener is a bolt.
[0035] Specifically, the second limiting member 5 is a second limiting block, which is threadedly connected to the outer peripheral wall of the core roller 1 by a second fastener. Optionally, the second fastener is a bolt.
[0036] The second limiting block is detachably connected to the core roller 1 by the second fastener, which is simple in structure and easy to operate.
[0037] For example, the support member 6 is a support ring, which is sleeved on the outside of the core roller 1. In other embodiments, the support member 6 may also be a support block.
[0038] It should be noted that the support member 6 only needs to provide support for the core roller mold 3, and its specific shape and structure are not specifically limited.
[0039] Furthermore, the support member 6 is provided with a clearance groove, and the second limiting member 5 can pass through the clearance groove and is connected to the core roller 1.
[0040] like Figure 3 As shown, the support member 6 is provided with a clearance groove, so that when the support member 6 is placed below the core roller mold 3 to support the core roller mold 3, the support member 6 will not interfere with the second limiting member 5. At the same time, the second limiting member 5 can be removed from the core roller 1 and installed through the clearance groove.
[0041] Optionally, the end face area of the second limiting member 5 is smaller than the area of the clearance groove, so as to ensure that the second limiting member 5 will not interfere with the side wall of the clearance groove when it enters or exits the clearance groove.
[0042] Furthermore, the side of the support member 6 supporting the core roller mold 3 is the first support surface, and the side of the second limiting member 5 that abuts against the core roller mold 3 is the second support surface. The first support surface and the second support surface are flush so that the second limiting member 5 can selectively enter and exit the clearance groove.
[0043] Keeping the first support surface of the support member 6 flush with the second support surface of the second limiting member 5 ensures the smooth movement of the second limiting member 5 in and out of the clearance groove during installation and disassembly.
[0044] Furthermore, the tooling for changing the core roller also includes a lifting ring assembly, which includes two lifting rings 7. One lifting ring 7 is threaded to the core roller 1, and the other lifting ring 7 is threaded to the pad ring 2. The lifting ring 7 connected to the core roller 1 is located on the side of the first limiting member 4 away from the pad ring 2, and the two lifting rings 7 are connected by a lifting rope 8.
[0045] When the washer ring 2 does not need to be replaced, the washer ring 2 is connected to the lifting ring 7 on the washer ring 2 by the lifting rope 8. When the core roller 1 is lifted, the washer ring 2 that does not need to be replaced will be lifted together with the core roller 1. When the washer ring 2 needs to be replaced, by adjusting the installation position of the lifting ring 7 on the washer ring 2, that is, when the core roller 1 is lifted, the washer ring 2 will not be lifted together, the washer ring 2 can be quickly removed, the washer ring 2 can be separated from the core roller 1 and then a new washer ring 2 can be replaced, which can improve the flexibility of washer ring 2 replacement.
[0046] Furthermore, the lifting ring assembly is provided in multiple sets, with the multiple sets of lifting rings 7 evenly distributed along the circumference of the core roller 1, resulting in uniform force distribution. This improves the connection stability of the lifting rope 8 and ensures that the pad ring 2 can be stably raised and lowered together with the core roller 1.
[0047] After the new pad ring 2 and the new core roller mold 3 are replaced, the core roller 1 is lowered, the second limiting piece 5 is installed, and finally the core roller 1 is raised. The support piece 6, the lifting ring 7 and the lifting rope 8 are removed to complete the replacement work so that the core roller 1 can operate normally.
[0048] Furthermore, the tooling for changing the core roller also includes a drive unit, the output end of which is connected to the core roller 1. The drive unit can drive the core roller 1 to move along its own axis toward or away from the core roller mold 3.
[0049] By driving the core roller 1 to rise or fall, the replacement of the core roller mold 3 and the pad ring 2 can be completed quickly, saving a lot of manpower and material resources, shortening the disassembly and installation time, and reducing the impact on production.
[0050] Specifically, the driving component is a cylinder, and the extension and retraction of the cylinder can raise and lower the core roller 1. Of course, it is understandable that, depending on the design requirements, the driving component can also be a hydraulic cylinder, a motor, etc.
[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A tooling for replacing a core roller of a ring rolling machine, capable of replacing a washer (2) and a core roller mold (3) sleeved on the outer peripheral wall of the core roller (1), wherein the washer (2) and the core roller mold (3) are sequentially distributed along the axial direction of the core roller (1), the core roller (1) is movable relative to the washer (2) and the core roller mold (3), and the washer (2) is fixed relative to the core roller (1), characterized in that, The tooling for changing the core roller of the ring rolling mill includes: The first limiting member (4) is used to fix the core roller (1) to the outer peripheral wall; The second limiting member (5) can be detachably connected to the outer peripheral wall of the core roller (1). The first limiting member (4) and the second limiting member (5) are distributed at intervals along the axial direction of the core roller (1), and the pad ring (2) and the core roller mold (3) can be clamped between the first limiting member (4) and the second limiting member (5). Support member (6) is capable of supporting the core roller mold (3).
2. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The first limiting member (4) is a locking nut, which is threadedly connected to the outer peripheral wall of the core roller (1).
3. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The first limiting member (4) is a first limiting block, and the first limiting block is connected or welded to the core roller (1) by a first fastener.
4. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The second limiting member (5) is a second limiting block, which is threadedly connected to the outer peripheral wall of the core roller (1) by a second fastener.
5. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The support member (6) is a support ring, which is sleeved on the outside of the core roller (1).
6. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The support member (6) is provided with a clearance groove, and the second limiting member (5) can pass through the clearance groove and is connected to the core roller (1).
7. The tooling for changing the core roller of a ring rolling mill according to claim 6, characterized in that, The side of the support member (6) that supports the core roller mold (3) is the first support surface, and the side of the second limiting member (5) that abuts against the core roller mold (3) is the second support surface. The first support surface and the second support surface are flush so that the second limiting member (5) can selectively enter and exit the clearance groove.
8. The tooling for changing the core roller of a ring rolling mill according to claim 1, characterized in that, The tooling for changing the core roller also includes a lifting ring assembly, which includes two lifting rings (7). One lifting ring (7) is threaded to the core roller (1), and the other lifting ring (7) is threaded to the pad ring (2). The lifting ring (7) connected to the core roller (1) is located on the side of the first limiting member (4) away from the pad ring (2). The two lifting rings (7) are connected by a lifting rope (8).
9. A tooling for changing the core roller of a ring rolling mill according to any one of claims 1-8, characterized in that, The tooling for changing the core roller also includes a drive unit, the output end of which is connected to the core roller (1). The drive unit can drive the core roller (1) to move along its own axis toward or away from the core roller mold (3).
10. A tooling for changing the core roller of a ring rolling mill according to claim 9, characterized in that, The driving component is a pneumatic cylinder or a hydraulic cylinder.