Limiting clamp for roller bending
By designing a limiting fixture with an adjustable adjusting rod and a limiting seat, the problems of inaccurate positioning and unstable clamping force of traditional roll clamps were solved, achieving precise positioning and stable clamping of rolls, improving processing accuracy and efficiency, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520489346.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Traditional roll bending fixtures suffer from inaccurate positioning, unstable clamping force, and poor adaptability, which affect processing accuracy and efficiency. Furthermore, it is difficult to precisely control the clamping force, leading to damage to the roll surface and product inconsistency.
A limiting clamping fixture including an adjustable adjusting rod and a limiting seat was designed. Combined with a clamping mechanism consisting of a material-stopping part, a threaded sleeve and a threaded rod, and a combination of a detachable connecting piece and a return spring, it can achieve precise positioning and stable clamping of the rolls and adapt to rolls of different sizes and specifications.
It improves the processing accuracy and efficiency of the roll bending process, enhances the adaptability and stability of the fixture, reduces maintenance costs, and ensures processing quality and product consistency.
Smart Images

Figure CN223833273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of limiting clamp technology, and in particular to a limiting clamp for bending rolls. Background Technology
[0002] In the roll bending process, precise positioning and stable clamping of the rolls are crucial to ensuring processing quality and efficiency. However, traditional roll bending fixtures often suffer from inaccurate positioning, unstable clamping force, and poor adaptability, severely impacting processing accuracy and efficiency. Specifically, traditional fixtures typically employ a fixed clamping structure, unable to be flexibly adjusted according to the roll's size and specifications. This necessitates frequent fixture changes or complex adjustments when processing rolls of different sizes, increasing processing costs and reducing production efficiency. Furthermore, traditional fixtures often lack effective positioning and limiting mechanisms during clamping, making the roll prone to shifting or wobbling during bending, further affecting processing accuracy and stability. In addition, the clamping force of traditional fixtures is often difficult to control precisely; excessively tight clamping force can damage the roll surface, while excessively loose clamping force cannot ensure the roll's stability during bending, thus affecting processing quality and product consistency. Utility Model Content
[0003] To address the aforementioned problems, this utility model proposes a limiting fixture for bending rolls, which more accurately solves the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution:
[0005] This utility model proposes a limiting fixture for bending a roll, including a worktable. A lower arc-shaped plate is installed on the top of the worktable, and an upper arc-shaped plate is detachably connected to the top of the lower arc-shaped plate. A material-holding part is installed on the upper arc-shaped plate for clamping the roll. An adjusting rod is installed on the side of the lower arc-shaped plate, and a limiting seat is installed on the top of the worktable. The position of the adjusting rod at the limiting seat is adjustable. The lower arc-shaped plates are symmetrically arranged on the worktable.
[0006] Preferably, the adjusting rod is provided with insertion holes, and the limiting seat is provided with a connector, which is inserted into the insertion holes for limiting the position of the adjusting rod after a change.
[0007] Preferably, the connector includes a return spring mounted on the top of the limiting seat, a connecting plate mounted on the top of the return spring, and a plug rod mounted on the bottom of the connecting plate, the plug rod being inserted into the socket.
[0008] Preferably, the abutment part includes a threaded sleeve installed on the upper arc plate, a threaded rod is threadedly connected to the inner wall of the threaded sleeve, and an abutment block is installed at the bottom of the threaded rod, with the bottom of the abutment block contacting the roller.
[0009] Preferably, a connecting piece one is installed on the surface of the lower arc-shaped plate, and a connecting piece two is installed on the surface of the upper arc-shaped plate. The connecting piece one and the threaded post are detachably connected.
[0010] Preferably, a threaded post is installed on the top of the first connecting piece, and a threaded ring is provided on the top of the second connecting piece, and the threaded ring is threadedly connected to the threaded post.
[0011] Compared with the prior art, this utility model provides a limiting fixture for bending rolls, which has the following features:
[0012] Beneficial effects:
[0013] This roll bending limiting fixture achieves precise positioning and stable clamping of the roll through an adjustable rod that engages with the limiting seat and a precise clamping mechanism at the material stop. This design not only improves the processing accuracy during roll bending but also significantly enhances processing efficiency through quick and convenient position adjustment and clamping operations. Especially when handling rolls of different sizes and specifications, the fixture can quickly adapt and remain stable, thereby reducing errors and waste during processing and improving production efficiency and product quality.
[0014] This roller bending limiting fixture, through the use of a threaded sleeve and threaded rod, allows for flexible adjustment of the position of the stop block and the clamping force according to actual needs, enhancing the fixture's adaptability to the roller and its clamping stability. Simultaneously, the detachable connection design between the upper and lower arc-shaped plates, via connecting piece one, connecting piece two, threaded column, and threaded ring, not only simplifies the assembly and disassembly process but also ensures the robustness and stability of the connection. This allows the fixture to maintain high precision and stability over a long period, extending its service life and reducing maintenance costs. Furthermore, the combination design of the return spring and the insertion rod further enhances the stability of the adjusting rod on the limiting seat, preventing accidental movement during processing and improving the overall performance and reliability of the fixture. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a limiting clamp for bending a roll proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the material-stopping part of a limiting clamp for bending rolls proposed in this utility model;
[0017] Figure 3 This utility model proposes a limiting clamp for bending rolls. Figure 1 Enlarged schematic diagram of region A in the middle.
[0018] In the diagram: 1. Lower arc plate; 11. Connecting piece one; 12. Threaded column; 2. Upper arc plate; 21. Connecting piece two; 22. Threaded ring; 3. Adjusting rod; 31. Insertion hole; 4. Limiting seat; 41. Return spring; 42. Connecting plate; 43. Insertion rod; 5. Material abutment part; 51. Threaded sleeve; 52. Threaded rod; 53. Abutment block; 6. Worktable. Detailed Implementation
[0019] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.
[0020] Example
[0021] like Figures 1-3 As shown in the figure, an embodiment of this utility model discloses a limiting fixture for bending a roll, specifically including a worktable 6. A lower arc-shaped plate 1 is installed at the top center of the worktable 6 for supporting and positioning the roll. An upper arc-shaped plate 2 is detachably connected to the top of the lower arc-shaped plate 1, and the two cooperate to form a preliminary clamping of the roll. A material-abutting part 5 is specially designed on the upper arc-shaped plate 2, which can further clamp the roll and ensure its stability during the bending process. In order to achieve precise control of the bending position of the roll, an adjusting rod 3 is installed on the side of the lower arc-shaped plate 1, and a limiting seat 4 is fixed on the top of the worktable 6. The adjusting rod 3 can be adjusted in position on the limiting seat 4, thereby meeting the positioning of rolls of different sizes and bending requirements. Furthermore, to enhance the versatility and stability of the fixture, the lower arc plate 1 is symmetrically arranged on the worktable 6 to ensure a uniform distribution of clamping force. The stable clamping of the roll is achieved through the cooperation of the upper arc plate 2 and the lower arc plate 1, as well as the clamping action of the material-stopping part 5. The adjustability of the adjusting rod 3 on the limiting seat 4 allows the fixture to flexibly adapt to rolls of different sizes, improving processing accuracy and efficiency.
[0022] Based on Embodiment 1, the adjusting rod 3 has multiple insertion holes 31 arranged on it, while the limiting seat 4 is provided with a connector. When it is necessary to adjust the position of the adjusting rod 3, simply pull the connector out of the current insertion hole 31, move it to the target insertion hole 31 and insert it. This achieves the stable positioning of the adjusting rod 3 with the matching design of the limiting insertion hole 31 and the connector, making the position adjustment of the adjusting rod 3 simple and reliable. It effectively prevents the adjusting rod 3 from moving accidentally during processing, further improving the stability of the fixture and the processing accuracy.
[0023] Based on Embodiment 2, the specific structure of the connector includes a return spring 41 installed on the top of the limiting seat 4. The top of the return spring 41 is connected to the connecting plate 42, and the bottom of the connecting plate 42 is fitted with a plug rod 43. When the position of the adjusting rod 3 needs to be adjusted, the connecting plate 42 is pressed, and the plug rod 43 can be dislodged from the insertion hole 31. After the connecting plate 42 is released, the elastic force of the return spring 41 will automatically push the plug rod 43 into the new insertion hole 31. This achieves a fast and stable combination design of the limiting return spring 41 and the plug rod 43, which not only simplifies the position adjustment process of the adjusting rod 3, but also ensures that the plug rod 43 can be automatically and accurately inserted into the insertion hole 31, improving the convenience of operation and the stability of the fixture.
[0024] Based on Embodiment 1, the specific structure of the abutment part 5 includes a threaded sleeve 51 installed on the upper arc-shaped plate 2, and the inner wall of the threaded sleeve 51 is threadedly connected to the threaded rod 52. By rotating the threaded rod 52, the contact pressure between the abutment block 53 at its bottom and the roll can be adjusted, thereby achieving precise clamping of the roll. The design of the threaded sleeve 51 and the threaded rod 52 allows the position of the abutment block 53 and the clamping force to be flexibly adjusted according to actual needs, improving the adaptability and clamping effect of the fixture.
[0025] Based on Embodiment 1, a connecting piece 11 is installed on the surface of the lower arc-shaped plate 1, while a connecting piece 21 is installed on the surface of the upper arc-shaped plate 2. The connecting piece 11 and the connecting piece 21 are connected in a detachable manner to achieve a stable connection between the upper arc-shaped plate 2 and the lower arc-shaped plate 1. The design of the connecting piece 11 and the connecting piece 21 makes the connection between the upper arc-shaped plate 2 and the lower arc-shaped plate 1 both firm and easy to disassemble, facilitating the maintenance and replacement of parts of the fixture.
[0026] Based on embodiment 5, a threaded post 12 is installed on the top of connecting piece 11, while a threaded ring 22 is provided on the top of connecting piece 21. By rotating the threaded ring 22, it can be tightly threadedly connected to the threaded post 12, thereby achieving a stable connection between the upper arc plate 2 and the lower arc plate 1. The threaded connection design of the threaded post 12 and the threaded ring 22 not only simplifies the connection process between the upper arc plate 2 and the lower arc plate 1, but also ensures the firmness and stability of the connection, improving the overall performance and service life of the fixture.
[0027] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.
[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A limiting fixture for bending rolls, comprising a worktable (6), characterized in that, The workbench (6) is equipped with a lower arc plate (1) on its top. The lower arc plate (1) is provided with a detachably connected upper arc plate (2). The upper arc plate (2) is equipped with a material-stopping part (5) for clamping the roll. An adjusting rod (3) is installed on the side of the lower arc plate (1). A limiting seat (4) is installed on the top of the workbench (6). The position of the adjusting rod (3) on the limiting seat (4) is adjustable. The lower arc plate (1) is symmetrically arranged on the workbench (6).
2. The limiting fixture for bending rolls according to claim 1, characterized in that, The adjusting rod (3) is provided with insertion holes (31), and the limiting seat (4) is provided with a connector. The connector is inserted into the insertion hole (31) for limiting the position of the adjusting rod (3) after the position changes.
3. A limiting fixture for bending rolls according to claim 2, characterized in that, The connector includes a return spring (41) mounted on the top of the limiting seat (4), a connecting plate (42) mounted on the top of the return spring (41), and a plug rod (43) mounted on the bottom of the connecting plate (42), the plug rod (43) being inserted into the socket (31).
4. A limiting fixture for bending rolls according to claim 1, characterized in that, The abutment part (5) includes a threaded sleeve (51) installed on the upper arc plate (2). A threaded rod (52) is threadedly connected to the inner wall of the threaded sleeve (51). An abutment block (53) is installed at the bottom of the threaded rod (52). The bottom of the abutment block (53) is in contact with the roller.
5. A limiting fixture for bending rolls according to claim 1, characterized in that, The surface of the lower arc plate (1) is equipped with a connecting piece one (11), and the surface of the upper arc plate (2) is equipped with a connecting piece two (21). The connecting piece one (11) and the threaded column (12) are detachably connected.
6. A limiting fixture for bending rolls according to claim 5, characterized in that, The top of the first connecting piece (11) is equipped with a threaded post (12), and the top of the second connecting piece (21) is provided with a threaded ring (22), which is threadedly connected to the threaded post (12).