A ring rolling machine core roller clamping structure

Abstract

The utility model discloses a kind of ring rolling machine core roller clamping structures, including first sleeve, first sleeve one end insertion has core roller, the core roller is equipped with multiple recesses, multiple recesses are annular. Multiple recesses are contacted with curved rod, multiple curved rods are U-shaped, the first sleeve outer wall clearance is cooperated with ring body. The utility model when core roller inserts first sleeve, push rod driving ring body moves along axial direction, ring body linkage rod body drives two plate bodies and multiple curved rods synchronous outward movement, so that curved rod moves into the corresponding recess of core roller and forms clamping. Compared with traditional bolt fastening needs to be operated one by one, process is complicated, and core roller eccentricity can appear due to uneven pre-tightening force, and multiple-point clamping is realized by synchronous driving curved rod, which helps to reduce positioning deviation caused by force imbalance, and helps to improve clamping accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of ring rolling machines, and in particular to a core roller clamping structure for a ring rolling machine. Background Technology

[0002] In the ring rolling process, the clamping accuracy of the mandrel directly affects the machining quality of the ring-shaped workpiece. Existing mandrel clamping structures suffer from problems such as cumbersome operation, uneven clamping force, and poor versatility, making it difficult to meet the demands of high-precision and high-efficiency production. For example, traditional bolt tightening methods require tightening multiple bolts one by one, which is not only time-consuming and labor-intensive but also prone to causing mandrel eccentricity due to inconsistent bolt preload. Therefore, there is an urgent need for a mandrel clamping structure that is simple in structure, easy to operate, and has high clamping accuracy. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rolling mill core roller clamping structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A ring rolling mill core roller clamping structure includes a first sleeve, with a core roller inserted into one end of the first sleeve. The core roller has multiple annular grooves. Each of the multiple grooves contacts a U-shaped crank. A ring body is fitted with a clearance fit on the outer wall of the first sleeve. One end of the ring body is rotatably connected to a rod body, and two rod bodies are rotatably connected to plates. Two plates are respectively fixedly connected to corresponding crank bodies.

[0005] Preferably, the first set body has multiple grooves, and the core roller is fixedly connected with multiple protrusions, with each of the multiple protrusions contacting the corresponding groove.

[0006] Preferably, a second body is fixedly connected to both the top and bottom of the first body, and multiple second bodies respectively movably penetrate the corresponding crank rod.

[0007] Preferably, the first set body is fixedly connected to a push rod, and the output end of the push rod is fixedly connected to the ring body.

[0008] Preferably, the diameter of the first set body is larger than the diameter of the core roller.

[0009] Preferably, the four cranks are divided into two groups of two, with the two groups of cranks arranged in opposite directions.

[0010] Preferably, the plurality of protrusions and grooves are distributed in a ring at equal intervals.

[0011] The beneficial effects of this utility model are as follows: 1. Through the coordination between the first set of components, the core roller, the groove, the ring, the rod, the plate, and the curved rod, when the core roller is inserted into the first set of components, the push rod drives the ring to move axially. The ring, in conjunction with the rod, drives the two plates and multiple curved rods to move outward synchronously, causing the curved rods to move into the corresponding grooves of the core roller to form a clamping mechanism. Compared to traditional bolt tightening, which requires individual operation and is cumbersome, and is prone to core roller eccentricity due to uneven preload, multi-point clamping through synchronously driven curved rods helps reduce positioning deviations caused by force imbalance and improves clamping accuracy. 2. Through the cooperation between the core roller, groove, protrusion and first sleeve, when the core roller is inserted into the first sleeve, the protrusion of the core roller contacts the groove of the first sleeve, which helps to quickly achieve the initial positioning of the core roller, reduce the radial offset or axial misalignment of the core roller during installation, and provide a stable reference for subsequent clamping; at the same time, the cooperation between the protrusion and the groove can intuitively guide the alignment of the ring body and the crank, reduce the difficulty of manually adjusting the corresponding position of the components, and reduce the adjustment time in the clamping preparation stage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a ring rolling mill core roller clamping structure proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the first set of bodies in China; Figure 3 for Figure 2 A structural schematic diagram of the first set of body, ring, and rod in the middle; Figure 4 for Figure 2 Structural diagram of the middle plate, the curved rod, and the second set of components; Figure 5 for Figure 1 A schematic diagram of the structure of the central roller, the protrusion, and the crank.

[0013] In the diagram: 1. First set; 2. Core roller; 3. Groove; 4. Ring; 5. Rod; 6. Plate; 7. Curved rod; 8. Second set; 9. Groove; 10. Protrusion; 11. Push rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1, referring to Figures 1 to 5A core roller clamping structure for a ring rolling machine includes a first body 1, which is a hollow cylindrical structure. A core roller 2 to be clamped can be inserted into the opening at one end of the first body 1. The other end of the first body 1 is connected to the ring rolling machine. The core roller 2 is inserted into one end of the first body 1. The core roller 2 has multiple grooves 3, all of which are annular. Multiple grooves 3 are in contact with curved rods 7, and the multiple curved rods 7 are all U-shaped. They can achieve stable clamping by tightly fitting the inner side of the U-shape with the grooves 3. The distance between the two sides of the curved rods 7 is greater than the diameter of the core roller 2. In this way, when the curved rods 7 are removed from the ring body 4, the curved rods 7 will not affect the removal of the core roller 2. The outer wall of the first set 1 is fitted with a ring body 4 with a clearance. The ring body 4 can move axially along the first set 1. One end of the ring body 4 is rotatably connected to a rod body 5. The ring body 4 can drive the rod body 5 to move synchronously. The two rod bodies 5 are rotatably connected to a plate body 6. The two plate bodies 6 are fixedly connected to the corresponding curved rods 7 respectively. When the core roller 2 is inserted into the first set 1, the push rod 11 drives the ring body 4 to move axially. The linkage rod body 5 drives the plate body 6 and the curved rod 7 to expand outward synchronously, so that the curved rod 7 is embedded in the groove 3 of the core roller 2 to form a clamp. Compared to traditional bolt tightening, which involves individual bolt tightening and is prone to eccentricity due to uneven preload, this structure reduces force imbalance and significantly improves clamping accuracy and efficiency through synchronous multi-point clamping.

[0016] In this embodiment, the first set 1 has multiple grooves 9, and the core roller 2 is fixedly connected to multiple protrusions 10. The multiple protrusions 10 are in contact with the corresponding grooves 9 respectively. The size of the multiple protrusions 10 is adapted to the grooves 9, and they form surface contact with the corresponding grooves 9 respectively. The initial guidance of the core roller 2 when it is inserted is achieved through the concave-convex cooperation. The top and bottom of the first set 1 are fixedly connected to the second set 8. The multiple second sets 8 are movably connected to the corresponding curved rods 7 respectively. The second set 8 is a hollow tubular structure, which can guide the movement of the curved rods 7. The first set 1 is fixedly connected to the push rod 11, which can drive the ring 4 to move stably along the axial direction of the first set 1. The output end of the push rod 11 is fixedly connected to the ring 4. The diameter of the first set 1 is larger than the diameter of the core roller 2. The four curved rods 7 are divided into two groups, two in each group. The two groups of curved rods 7 are arranged in opposite directions, and the curved rods 7 can be used to stably clamp the core roller 2. The multiple protrusions 10 and grooves 9 are all distributed in a ring at equal intervals.

[0017] The working principle of this embodiment is as follows: When using the core roller 2, it is first inserted into the first sleeve 1. At this time, the protrusion 10 of the core roller 2 contacts the groove 9 of the first sleeve 1, which can quickly achieve the initial positioning of the core roller 2, reduce the radial offset or axial misalignment during installation, provide a stable reference for subsequent clamping, and intuitively guide the ring 4 and the crank 7 to align, reducing the difficulty of manually adjusting the corresponding position of the components and shortening the clamping preparation time. Subsequently, the push rod 11 is connected to the external power supply and drive device. The push rod 11 drives the ring 4 to move axially. The ring 4 and the linkage rod 5 drive the two plates 6 and multiple cranks 7 to move outward synchronously, so that the cranks 7 move into the corresponding groove 3 of the core roller 2 to form a clamp. Through synchronous multi-point clamping, it helps to reduce the core roller 2 eccentricity problem caused by the individual operation and uneven preload of traditional bolt fastening, which is conducive to improving the clamping accuracy and making the overall process smooth and efficient.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ring rolling mill core roller clamping structure, comprising a first body (1), characterized in that, One end of the first sleeve (1) is inserted with a core roller (2). The core roller (2) has multiple grooves (3). The multiple grooves (3) are all annular. The multiple grooves (3) are in contact with a crank rod (7). The multiple crank rods (7) are all U-shaped. The outer wall of the first sleeve (1) is fitted with a ring body (4). One end of the ring body (4) and the other end are rotatably connected to a rod body (5). The two rod bodies (5) are rotatably connected to a plate body (6). The two plate bodies (6) are respectively fixedly connected to the corresponding crank rods (7).

2. The ring rolling mill core roller clamping structure according to claim 1, characterized in that, The first set body (1) has multiple grooves (9), and the core roller (2) is fixedly connected with multiple protrusions (10), and the multiple protrusions (10) respectively contact the corresponding grooves (9).

3. The ring rolling mill core roller clamping structure according to claim 1, characterized in that, The first set (1) is fixedly connected to the top and bottom of the second set (8), and multiple second sets (8) are respectively movably connected to the corresponding crank (7).

4. The ring rolling mill core roller clamping structure according to claim 1, characterized in that, The first set (1) is fixedly connected to a push rod (11), and the output end of the push rod (11) is fixedly connected to the ring (4).

5. The ring rolling mill core roller clamping structure according to claim 1, characterized in that, The diameter of the first body (1) is larger than the diameter of the core roller (2).

6. The ring rolling mill core roller clamping structure according to claim 1, characterized in that, The four cranks (7) are divided into two groups of two, with the two groups of cranks (7) arranged in opposite directions.

7. The ring rolling mill core roller clamping structure according to claim 2, characterized in that, The multiple protrusions (10) and grooves (9) are all distributed in annularly at equal intervals.

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