A double position ring rolling machine

Abstract

The utility model relates to the technical field of ring rolling machine, especially a double station ring rolling machine for rolling and expanding metal ring body, which comprises a rack, a sliding seat, a pushing oil cylinder, a rolling mechanism, a rotating motor for driving the rolling mechanism to rotate, a support roller body rotatably arranged on the rack below the rolling mechanism, the support roller body is used for supporting the ring body and realizing rolling and expansion in cooperation with the rolling mechanism, the rack is in an inclined state with an inclination angle of 5-30 degrees to realize independent support of the metal ring body by the support roller body, the support roller body comprises a first roller part close to the rack and a second roller part outside the first roller part, the diameter of the second roller part is smaller than that of the first roller part, and the rolling mechanism comprises a first rolling part matched with the first roller part and a second rolling part matched with the second roller part. The utility model solves the technical problem that the existing ring rolling machine cannot flexibly adapt to the rolling requirements of different parts of the metal ring body.

Description

Technical Field

[0001] This utility model relates to the field of ring rolling mill technology, and in particular to a dual-station ring rolling mill. Background Technology

[0002] Currently, in the field of metal processing, especially for the rolling and expansion process of metal rings, traditional ring rolling mill designs often have limitations, affecting processing efficiency and product quality. Specifically, the frame of a traditional ring rolling mill is usually horizontal. This design makes it difficult to achieve independent and stable support for the metal ring by the support rollers when supporting and rolling the metal ring, especially when processing metal rings of different diameters or complex shapes. For example, Chinese Patent Publication No. CN118437876A discloses an automatic ring rolling mill, which relates to the field of ring rolling mill technology and aims to improve the problem that the inner wall of the workpiece supported by the strut can easily affect the quality of the finished product. An automatic ring rolling mill includes a machine body, a fixed frame is provided on one side of the machine body, several sets of feed rollers for transferring workpieces are rotatably arranged on the fixed frame, a rotating component is provided on the fixed frame for driving all feed rollers to rotate synchronously, a traction component is provided on the fixed frame for pulling the workpiece onto the feed rollers, and a transfer cart for transferring workpieces is provided on the side of the fixed frame away from the machine body.

[0003] In addition, traditional ring rolling mills cannot flexibly adapt to the rolling requirements of different parts of the metal ring, resulting in uneven stress on the metal ring during the rolling process, which can easily cause deformation or cracks and affect the quality of the finished product. Utility Model Content

[0004] Therefore, in response to the above problems, this utility model proposes a dual-station ring rolling mill, which solves the technical problem that existing ring rolling mills cannot flexibly adapt to the rolling requirements of different parts of the metal ring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dual-station ring rolling mill for rolling and expanding metal rings, comprising a frame and a sliding seat that can slide up and down along the frame, a pushing cylinder mounted on the frame to drive the sliding seat, a rolling mechanism rotatably mounted on the sliding seat, a rotating motor that drives the rolling mechanism to rotate, and a support roller rotatably mounted on the frame below the rolling mechanism. The support roller supports the ring and cooperates with the rolling mechanism to achieve rolling and expanding. The frame is inclined at an angle of 5-30 degrees to enable the support roller to independently support the metal ring. The support roller has a first roller section near the frame and a second roller section located outside the first roller section. The diameter of the second roller section is smaller than the diameter of the first roller section. The rolling mechanism includes a first rolling section that cooperates with the first roller section and a second rolling section that cooperates with the second roller section.

[0006] Furthermore, the frame is provided with a support mechanism for supporting the second roller. The support mechanism is rotatably mounted on a support plate on the frame and has a swing drive device that drives the support plate to move closer to or away from the second roller. The support plate is provided with a recess that mates with the free end of the second roller.

[0007] Furthermore, a flexible buffer layer is provided in the recessed portion, and a wear-resistant material layer is provided in the flexible buffer layer.

[0008] Furthermore, a lifting mechanism for lifting the metal ring is provided on the frame below the second roller section. The lifting mechanism includes a lifting cylinder on the frame and a lifting plate on the piston rod of the lifting cylinder. The upper end face of the lifting plate is inclined to enable the metal ring to move towards the first roller section.

[0009] Furthermore, the upper surface of the lifting plate is provided with anti-slip texture, the depth of which is 0.5-2mm, and the anti-slip texture is distributed in a wavy shape.

[0010] Furthermore, the angle between the upper end face of the lifting plate and the axis of the supporting roller is 5-15 degrees.

[0011] Furthermore, a transition arc surface is provided between the first roller section and the second roller section.

[0012] Furthermore, support assemblies are respectively provided on both sides below the support roller body on the frame. The support assembly includes a support cylinder hinged to the frame at the bottom, a top pressure roller rotatably mounted on the piston rod of the support cylinder, and a rotating cylinder hinged to the frame at the bottom. The piston rod of the rotating cylinder is hinged to the support cylinder. The top pressure roller can cooperate with the metal ring on the first roller section and / or the second roller section to achieve support.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0014] 1. This solution uses a frame that is tilted at an angle of 5-30 degrees to achieve independent and stable support of the metal ring by the support roller, thereby improving the stability and accuracy during the rolling process and reducing ring deformation or slippage caused by unstable support.

[0015] 2. The support roller body includes a first roller section near the frame and a second roller section located outside the first roller section. The diameter of the second roller section is smaller than that of the first roller section. The design of roller sections with different diameters accommodates the rolling requirements of different parts of the metal ring, making the rolling process more uniform and improving the quality of the finished product. Furthermore, the shape of the metal ring can be formed by adjusting the outlines of the first roller section, the second roller section, the first rolling section, and the second rolling section.

[0016] 3. The frame is equipped with a support mechanism for the second roller, enhancing its stability and preventing deformation or displacement due to excessive force during rolling, thus improving equipment reliability. A flexible buffer layer reduces impact and vibration between the support plate and the second roller, improving operational smoothness; a wear-resistant material layer extends the service life of the support plate, reducing replacement frequency and costs.

[0017] 4. The lifting cylinder and lifting plate are designed with an inclined upper surface. When the position of the metal ring needs to be changed or adjusted, the lifting mechanism can quickly and smoothly lift the ring, reducing the difficulty and time of manual operation; the inclined upper surface gives the metal ring a tendency to move towards the first roller, which can realize the automatic transfer of the metal ring from the second roller to the first roller, facilitating subsequent rolling operations.

[0018] 5. The anti-slip texture increases the friction between the lifting plate and the metal ring, preventing the ring from sliding or falling off during lifting and improving operational safety. The angle between the upper end face of the lifting plate and the axis of the support roller is 5-15 degrees. This angle design helps the metal ring remain stable during lifting, avoiding tilting or sliding of the ring due to excessively large or small angles, thus improving operational accuracy and safety.

[0019] 6. The transition arc surface effectively improves the smoothness of the transfer.

[0020] 7. The support assembly provides additional support points for the metal ring, enhancing its stability during the rolling process; the top pressure roller can cooperate with the metal ring on the first roller section and / or the second roller section to provide support, adapting to the needs of rings with different diameters and shapes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure in which the middle support mechanism cooperates with the second roller section.

[0023] Figure 3 This is a schematic diagram of the structure of the supporting components and the metal ring.

[0024] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0025] Figure label:

[0026] 1. Frame; 2. Sliding seat; 21. Pushing cylinder; 3. Rolling mechanism; 33. Rotating motor; 31. First rolling section; 32. Second rolling section; 4. Support roller; 41. First roller section; 42. Second roller section; 43. Transition arc surface; 51. Support plate; 52. Swing drive device; 511. Recessed part; 512. Flexible buffer layer; 513. Wear-resistant material layer; 61. Lifting cylinder; 62. Lifting plate; 71. Supporting cylinder; 72. Top pressure roller; 73. Rotating cylinder; 9. Metal ring. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0028] refer to Figures 1 to 3 This embodiment provides a dual-station ring rolling mill for rolling and expanding a metal ring 9. It includes a frame 1 and a sliding seat 2 that can slide up and down along the frame 1; a pushing cylinder 21 mounted on the frame 1 to drive the sliding seat 2; a rolling mechanism 3 rotatably mounted on the sliding seat 2; a rotating motor 33 that drives the rolling mechanism 3 to rotate; and a support roller 4 rotatably mounted on the frame 1 below the rolling mechanism 3. The support roller 4 supports the ring and cooperates with the rolling mechanism 3 to achieve rolling and expanding. The frame 1 is tilted at an angle β of 5-30 degrees to allow the support roller 4 to independently support the metal ring 9. The support roller 4 has a first roller portion 41 near the frame 1 and a second roller portion 42 located outside the first roller portion 41. The diameter of the second roller portion 42 is smaller than the diameter of the first roller portion 41. The rolling mechanism 3 includes a first rolling portion 31 that cooperates with the first roller portion 41 and a second rolling portion 32 that cooperates with the second roller portion 42.

[0029] The optimal tilt angle β is 10 degrees, which ensures independent support while also facilitating operation and observation.

[0030] The frame 1 is provided with a support mechanism for supporting the second roller section 42. The support mechanism is rotatably mounted on a support plate 51 on the frame 1 and a swing drive device 52 for driving the support plate 51 to move closer to or away from the second roller section 42. The support plate 51 is provided with a recess 511 that mates with the free end of the second roller section 42. The swing drive device 52 is a hydraulic cylinder.

[0031] The recessed portion 511 is an arc shape that matches the free end of the second roller portion 42, and the depth can be set according to actual needs, such as 10mm, to ensure good fit and support effect.

[0032] A flexible buffer layer 512 is disposed within the recessed portion 511, and a wear-resistant material layer 513 is disposed within the flexible buffer layer 512. The flexible buffer layer 512 may be made of rubber, which has good elasticity and shock absorption performance, and has a thickness of 5mm to provide sufficient buffer space. The wear-resistant material layer 513 may be made of polytetrafluoroethylene (PTFE), which has an extremely low coefficient of friction and excellent wear resistance. It has a thickness of 2mm to extend service life, or a ceramic coating may be used instead.

[0033] A lifting mechanism for lifting the metal ring 9 is provided on the frame 1 below the second roller section 42. The lifting mechanism includes a lifting cylinder 61 on the frame 1 and a lifting plate 62 on the piston rod of the lifting cylinder 61. The upper end face of the lifting plate 62 is inclined to give the metal ring 9 a tendency to move towards the first roller section 41. The upper end face of the lifting plate 62 is provided with anti-slip texture, the depth of which is 0.5-2mm, and the texture is wavy. The angle α between the upper end face of the lifting plate 62 and the axis of the supporting roller 4 is 5-15 degrees. In this design, the angle α is 7 degrees.

[0034] A transition arc surface 43 is provided between the first roller section 41 and the second roller section 42.

[0035] Support assemblies are respectively provided on both sides below the support roller 4 on the frame 1. The support assembly includes a support cylinder 71 with its bottom hinged to the frame 1, a top pressure roller 72 rotatably mounted on the piston rod of the support cylinder 71, and a rotating cylinder 73 with its bottom hinged to the frame 1. The piston rod of the rotating cylinder 73 is hinged to the support cylinder. The top pressure roller 72 can cooperate with the metal ring 9 on the first roller part 41 and / or the second roller part 42 to achieve support.

[0036] The aforementioned hydraulic cylinders are all standard hydraulic cylinders, and their stroke is controlled by a hydraulic system. The aforementioned support mechanism can also adopt other structures, as long as it can support the second roller section; it can also be omitted. The aforementioned lifting mechanism can also be other structures; its purpose is to lift the metal ring, allowing it to detach from the second roller section and enter the first roller section; it can also be omitted. The support assembly can also be other structures; its main function is to coordinate the two top rollers with the rolling mechanism to achieve the rolling and forming of the metal ring; it can also be omitted. The support assembly can be used for the final forming and support of the metal ring.

[0037] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A dual-station ring rolling mill for rolling and expanding metal rings, comprising a frame and a sliding seat that can slide up and down along the frame, a pushing cylinder mounted on the frame to drive the sliding seat, a rolling mechanism rotatably mounted on the sliding seat, a rotary motor that drives the rolling mechanism to rotate, and a support roller rotatably mounted on the frame below the rolling mechanism, wherein the support roller supports the ring and cooperates with the rolling mechanism to achieve rolling and expanding, characterized in that: The frame is tilted at an angle of 5-30 degrees to enable the support roller to independently support the metal ring. The support roller has a first roller section near the frame and a second roller section outside the first roller section. The diameter of the second roller section is smaller than the diameter of the first roller section. The rolling mechanism includes a first rolling section that cooperates with the first roller section and a second rolling section that cooperates with the second roller section.

2. The dual-station ring rolling mill according to claim 1, characterized in that: The frame is provided with a support mechanism for supporting the second roller. The support mechanism is rotatably mounted on a support plate on the frame and has a swing drive device that drives the support plate to move closer to or away from the second roller. The support plate is provided with a recess that mates with the free end of the second roller.

3. A dual-station ring rolling mill according to claim 2, characterized in that: A flexible buffer layer is provided inside the recessed portion, and a wear-resistant material layer is provided inside the flexible buffer layer.

4. A dual-station ring rolling mill according to claim 1, characterized in that: A lifting mechanism for lifting the metal ring is provided on the frame below the second roller section. The lifting mechanism includes a lifting cylinder on the frame and a lifting plate on the piston rod of the lifting cylinder. The upper end face of the lifting plate is inclined to enable the metal ring to move towards the first roller section.

5. A dual-station ring rolling mill according to claim 4, characterized in that: The upper surface of the lifting plate is provided with anti-slip texture, the depth of which is 0.5-2mm, and the anti-slip texture is distributed in a wavy shape.

6. A dual-station ring rolling mill according to claim 4, characterized in that: The angle between the upper end face of the lifting plate and the axis of the support roller is 5-15 degrees.

7. A dual-station ring rolling mill according to claim 1, characterized in that: A transition arc surface is provided between the first roller section and the second roller section.

8. A dual-station ring rolling mill according to claim 1, characterized in that: Support assemblies are respectively provided on both sides below the support roller on the frame. The support assembly includes a support cylinder hinged to the frame at the bottom, a top pressure roller rotatably mounted on the piston rod of the support cylinder, and a rotating cylinder hinged to the frame at the bottom. The piston rod of the rotating cylinder is hinged to the support cylinder. The top pressure roller can cooperate with the metal ring on the first roller section and / or the second roller section to achieve support.

Images