Three-ring synchronous drive and radial stiffness enhanced roll forging machine

Abstract

The utility model discloses a three ring synchronous drive and radial stiffness enhancement type roll forging machine relates to roll forging machine technical field, including roll forging machine main part, support frame, control panel, the top of roll forging machine main part is fixed with support frame, and support frame outside is connected with control panel, the bottom of roll forging machine main part evenly is provided with the mechanism that expands outward, support frame top evenly is fixed with stand, and stand top fixedly connected with fixed plate, fixed plate top is connected with the cylinder, the utility model discloses utilize electric telescopic link to push swing frame around the movable seat rotation, i.

Description

Technical Field

[0001] This utility model relates to the field of forging machine technology, and in particular to a forging machine with three-ring synchronous drive and enhanced radial stiffness. Background Technology

[0002] As a key piece of equipment in the field of metal plastic forming, rolling forging machines are widely used in the precision manufacturing of ring parts such as bearing rings and flange rings. Traditional rolling forging machines achieve the reduction of ring wall thickness and expansion of diameter by radial pressure of drive rollers and core rollers, but their core problems are insufficient dynamic synchronization and structural rigidity.

[0003] Existing forging machines have limited functionality and poor uniformity in applying force to metal rings. Due to this uneven force, different parts of the metal ring experience varying pressures during the forging process, resulting in inconsistent deformation in different areas. This makes it difficult to control the diameter of the metal ring within a precise range, potentially leading to localized over- or under-diameter issues. This fails to meet the design requirements of high-precision parts, thus reducing the processing quality of the metal ring. Therefore, corresponding improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a three-ring synchronous drive and radial stiffness enhanced rolling forging machine to solve the problem mentioned in the background art that the existing rolling forging machine has poor rolling effect and poor quality of metal rings.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-ring synchronous drive and radial stiffness enhanced forging machine, including a forging machine body, a support frame, and a control panel. The support frame is fixed to the top of the forging machine body, and the control panel is connected to the outside of the support frame.

[0006] The bottom of the forging machine body is uniformly provided with an expansion mechanism, the top of the support frame is uniformly fixed with columns, and the top of the columns is fixedly connected with a fixing plate. The top of the fixing plate is connected with a cylinder, and one end of the cylinder is connected with a lifting plate. The bottom of the lifting plate is fixed with columns on both sides, and the bottom of the columns is connected with an adjustment plate. One end of the adjustment plate is fixed with a connecting plate, and the bottom of the connecting plate is connected with a rolling assembly.

[0007] Furthermore, the top of the main body of the forging machine is uniformly provided with multiple outward expansion grooves, and the cross-section of each outward expansion groove is arc-shaped.

[0008] Furthermore, the rolling assembly includes a drive motor fixed to one end of the connecting plate, and a rolling roller is fixed to the output shaft end of the drive motor.

[0009] Furthermore, the expansion mechanism includes an electric telescopic rod, and the electric telescopic rod is movably connected to the bottom of the forging machine body. One end of the electric telescopic rod is movably connected to a swing frame, and one end of the swing frame is movably connected to a movable seat. The swing frame is movably connected to the bottom of the forging machine body through the movable seat.

[0010] Furthermore, each of the top sides of the swing frame is connected to a connecting column, and one end of each connecting column passes through the outer expansion groove and is connected to a sliding plate. Each of the top sides of the sliding plate is fixed with an outer expansion thrust roller.

[0011] Furthermore, each of the sliding plates is uniformly fixed with balls, which are distributed in an array on the sliding plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] When used with a radial stiffness-enhanced rolling mill, this three-ring synchronous drive is highly efficient and can press the rolled ring into a metal ring of the required diameter. The electric telescopic rod drives the swing frame to rotate around the movable seat, pulling the corresponding connecting column along the outer expansion groove. The sliding plate and the outer expansion thrust rollers rotate synchronously outwards, meaning the three outer expansion thrust rollers rotate outwards simultaneously, contacting the inner surface of the metal ring and applying radial thrust. Under the action of these uniform thrusts, the metal ring undergoes plastic deformation, gradually expanding outwards until it reaches the required diameter. This avoids material property differences caused by excessive or insufficient local stress, helps improve the internal stress distribution of the metal ring, enhances its fatigue resistance and stability, makes it less prone to deformation, and strengthens its radial stiffness, resulting in better reliability and stability under various loads.

[0014] By using a cylinder to push the lifting plate and the control plate downwards, the connecting plate and the drive motor move downwards synchronously, allowing the rolling roller to apply longitudinal rolling pressure to the metal ring. Then, the drive motor drives the rolling roller to rotate, which, in conjunction with the rotation of the metal ring, allows pressure to be applied evenly across the entire circumference of the metal ring, helping to improve the forming quality of the metal ring. Radial pressure is also applied to the metal ring, causing radial compression deformation, that is, the diameter of the metal ring will decrease, and the wall thickness may change to a certain extent. This allows the metal ring to be precisely processed to the required diameter size to meet the design requirements of different products. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0018] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;

[0019] Figure 4 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0020] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention;

[0021] Figure 6 This is a three-dimensional structural diagram of the external expansion mechanism of this utility model.

[0022] The following are the annotations in the figure: 1. Main body of the forging machine; 101. Outer expansion groove; 2. Support frame; 3. Control panel; 4. Column; 5. Fixing plate; 6. Cylinder; 7. Outer expansion mechanism; 701. Electric telescopic rod; 702. Swing frame; 703. Movable seat; 704. Connecting column; 705. Sliding plate; 706. Outer expansion thrust roller; 707. Ball bearing; 8. Lifting plate; 801. Fixing column; 9. Control plate; 10. Drive motor; 11. Roller; 12. Connecting plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figures 1-6 The present invention provides the following technical solution:

[0025] Example 1

[0026] To address the problem of uneven stress on the metal rings and poor forging quality during the operation of existing forging mills, the following technical solution is proposed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6A three-ring synchronous drive and radial stiffness-enhanced forging mill includes a forging mill body 1, a support frame 2, and a control panel 3. The support frame 2 is fixed to the top of the forging mill body 1, and the control panel 3 is connected to the outside of the support frame 2. An outward expansion mechanism 7 is evenly distributed at the bottom of the forging mill body 1, and multiple outward expansion grooves 101 are evenly distributed at the top of the forging mill body 1. The cross-section of each outward expansion groove 101 is arc-shaped. The outward expansion mechanism 7 includes an electric telescopic rod 701, and each electric telescopic rod 701 is movably connected to the bottom of the forging mill body 1. Each end of the swing frame 702 is movably connected to a swing frame 702, and each end of the swing frame 702 is movably connected to a movable seat 703. The swing frame 702 is movably connected to the bottom of the rolling mill body 1 through the movable seat 703. Each top side of the swing frame 702 is connected to a connecting column 704, and one end of the connecting column 704 passes through the outer expansion groove 101 and is connected to a sliding plate 705. Each top side of the sliding plate 705 is fixed with an outer expansion thrust roller 706. Each sliding plate 705 is uniformly fixed with balls 707, and the balls 707 are distributed in an array on the sliding plate 705.

[0027] In this embodiment, the metal ring is heated above the crystallization temperature and then placed on the main body 1 of the forging mill, where it is positioned between multiple outward-expanding thrust rollers 706. Then, three electric telescopic rods 701 are driven synchronously, pushing the swing frame 702, causing the swing frame 702 to rotate around the movable seat 703. This causes the connecting column 704 to slide in the outward-expanding groove 101, pulling the sliding plate 705 and the outward-expanding thrust rollers 706 to move synchronously. With the three outward-expanding thrust rollers 706 rotating at the same speed, a uniform outward thrust is applied to the inner wall of the metal ring, ensuring uniform force on the metal ring and preventing deformation or twisting. The metal ring undergoes plastic deformation, gradually expanding outward until the desired diameter is reached.

[0028] Example 2

[0029] This embodiment differs from Embodiment 1 in that it utilizes the compaction assembly to adjust the diameter and wall thickness of the metal ring, thus meeting different application requirements. Therefore, the following technical solution is disclosed; please refer to it for details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The support frame 2 has columns 4 evenly fixed at the top, and a fixing plate 5 is fixedly connected to the top of the column 4. A cylinder 6 is connected to the top of the fixing plate 5, and a lifting plate 8 is connected to one end of the cylinder 6. Fixing columns 801 are fixed on both sides of the bottom end of the lifting plate 8, and an adjustment plate 9 is connected to the bottom end of the fixing column 801. A connecting plate 12 is fixed to one end of the adjustment plate 9, and a rolling assembly is connected to the bottom end of the connecting plate 12. The rolling assembly includes a drive motor 10 fixed to one end of the connecting plate 12, and a rolling roller 11 is fixed to the output shaft end of the drive motor 10.

[0030] In this embodiment, the drive cylinder 6 pushes the lifting plate 8 downward, and in conjunction with the fixed column 801, the control plate 9 moves downward synchronously. This, in turn, pushes the connecting plate 12 and the drive motor 10 downward synchronously, causing the rolling roller 11 to move down and fit against the upper surface of the metal ring. Combined with the external drive component, the metal ring rotates, thereby applying radial pressure to the metal ring using the rolling roller 11. As a result, the metal ring will undergo radial compression deformation, that is, the diameter of the metal ring will decrease, and the wall thickness may change to a certain extent, until the metal ring is processed into the required diameter to meet different usage requirements.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0032] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A three-ring synchronous drive and radial stiffness enhanced rolling forging machine, including a rolling forging machine body (1), a support frame (2), and a control panel (3), wherein the top of the rolling forging machine body (1) is fixed with the support frame (2), and the control panel (3) is connected to the outside of the support frame (2); Its features are: The bottom of the forging machine body (1) is uniformly provided with an expansion mechanism (7). The top of the support frame (2) is uniformly fixed with a column (4), and the top of the column (4) is fixedly connected with a fixing plate (5). The top of the fixing plate (5) is connected with a cylinder (6), and one end of the cylinder (6) is connected with a lifting plate (8). The bottom sides of the lifting plate (8) are fixed with fixing columns (801), and the bottom of the fixing columns (801) is connected with an adjustment plate (9). One end of the adjustment plate (9) is fixed with a connecting plate (12), and the bottom of the connecting plate (12) is connected with a rolling assembly.

2. The three-ring synchronous drive and radial stiffness enhanced forging mill according to claim 1, characterized in that: The top of the main body (1) of the forging machine is uniformly provided with multiple outer expansion grooves (101), and the cross-section of the outer expansion grooves (101) is arc-shaped.

3. The three-ring synchronous drive and radial stiffness-enhanced rolling forging machine according to claim 1, characterized in that: The rolling assembly includes a drive motor (10) fixed to one end of the connecting plate (12), and a rolling roller (11) is fixed to the output shaft end of the drive motor (10).

4. The three-ring synchronous drive and radial stiffness-enhanced rolling forging machine according to claim 1, characterized in that: The expansion mechanism (7) includes an electric telescopic rod (701), and the electric telescopic rod (701) is movably connected to the bottom of the forging machine body (1). One end of the electric telescopic rod (701) is movably connected to a swing frame (702), and one end of the swing frame (702) is movably connected to a movable seat (703). The swing frame (702) is movably connected to the bottom of the forging machine body (1) through the movable seat (703).

5. The three-ring synchronous drive and radial stiffness-enhanced rolling forging machine according to claim 4, characterized in that: Each of the top sides of the swing frame (702) is connected to a connecting column (704), and one end of the connecting column (704) passes through the outer expansion groove (101) and is connected to a sliding plate (705). Each of the top sides of the sliding plate (705) is fixed with an outer expansion thrust roller (706).

6. The three-ring synchronous drive and radial stiffness-enhanced rolling forging machine according to claim 5, characterized in that: All of the sliding plates (705) are uniformly fixed with balls (707), and the balls (707) are arranged in an array on the sliding plates (705).

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