A rolling mill

Abstract

The present application belongs to the technical field of mechanical processing, and particularly relates to a rolling mill for rolling metal sealing rings with a cross section in the shape of "W", "M" and the like, which is provided with a rolling power part controlled by a numerical control center, a rolling rod adjusting part, a tension-relaxation part and a finger-imitating pressing part, and can semi-automatically realize plastic forming of the metal sealing ring. One operator can complete all control procedures, and the processed metal sealing ring product has strong stability, small processing error, high processing efficiency and high yield.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a rolling mill. Background Art

[0002] Metal sealing rings are a type of axial self-tightening static sealing structure with a new type of sealing and better sealing effect. The cross-section is generally in the shape of "W", "M", "O", "C" or more complex multi-corrugated shapes. Metal sealing rings have the advantages of good resilience, strong vibration absorption ability, large deformation range, good high vibration tracking, high vibration absorption ability, long life and good wear resistance. The processing raw materials are mainly nickel-based high-temperature alloys. They are particularly suitable for working in harsh environments such as high temperature, high pressure, vibration and strong corrosive media in aviation and aerospace. They are mainly used in key parts such as intermediate compressors, combustion chambers, high and low pressure turbines and external pipelines of aircraft engines and gas turbines. In the existing technology, when a manual rolling mill is used to process metal sealing rings, the staff needs to manually press the sealing ring raw material at the end of the rolling. Therefore, in addition to the staff who press the finger, another staff member is required to control the rolling mill. In addition, the strength and direction of the manual finger pressure are difficult to control, resulting in inconsistent quality stability of the sealing ring after forming and large processing errors. Summary of the Invention

[0003] In view of this, the present invention proposes a rolling machine, which is equipped with a rolling power part, a rolling rod adjustment part, a tensioning part and a finger-like pressing part controlled by a numerical control center, and semi-automatically realizes the plastic forming of the metal sealing ring. One operator can complete all control processes, and the processed metal sealing ring products have strong stability and small processing errors, thereby high processing efficiency and high yield.

[0004] In order to achieve the above technical objectives, the specific technical solutions adopted by the present invention are:

[0005] A rolling mill for rolling a metal sealing ring, comprising:

[0006] frame;

[0007] A rolling power unit, mounted on the frame, for providing rolling power;

[0008] The rolling part is arranged on the frame and includes two sets of parallel rolling rods; one end of each rolling rod is driven to rotate by the rolling power unit, and the other end is fixed with a rolling head; the two rolling heads are used to form a rolling area when they are close to each other to shape the sealing ring;

[0009] A roller rod adjustment portion is provided on the frame and is used to drive the two groups of roller rods to move parallel to each other and adjust the relative distance between the two groups of roller heads;

[0010] A plurality of tensioning parts are provided on the frame and are used to cooperate with each other to open the processing material of the sealing ring from the inner ring;

[0011] a centering portion, provided on the frame, for limiting the position of the raw material from the rolling upstream of the rolling area so that the raw material is aligned with the rolling area during rolling;

[0012] a finger-like pressing portion, provided on the frame, for acting on the raw material from the rolling downstream of the rolling area to provide a pressing force for the raw material to be formed into a ring shape;

[0013] The numerical control center is used to control the operation of the roller rod adjusting part, the tensioning part and the centering finger-simulating pressing part.

[0014] Furthermore, the rolling power unit includes a first servo motor and a first reducer; the output shaft of the first servo motor is connected to the power input end of the first reducer, and the power output end of the first reducer is connected to the two rolling rods;

[0015] The numerical control center controls the operation of the first servo motor.

[0016] Furthermore, the rolling rod adjustment unit includes a second servo motor and a second reducer; the output shaft of the second servo motor is connected to the power input end of the second reducer, and the power output end of the second reducer is connected to at least one of the rolling rods;

[0017] The numerical control center controls the operation of the second servo motor.

[0018] Furthermore, each of the tensioning parts is slidably mounted on a tensioning linear rail perpendicular to the rolling rod; the tensioning part includes a tensioning cylinder, a locking handle, and a support wheel; the tensioning cylinder is slidably mounted on the tensioning linear rail; the locking handle acts on the tensioning cylinder and the tensioning linear rail to lock the tensioning cylinder on the tensioning linear rail or release the lock; the support wheel is mounted on the telescopic rod of the tensioning cylinder and acts on the raw material;

[0019] The numerical control center controls the operation of the tension and relaxation cylinders.

[0020] Furthermore, the centering portion includes a first movable block, a first hand wheel, a second movable block, a second hand wheel and two groups of support blocks;

[0021] The first movable block is mounted on the frame and is provided with a centering rail; the second movable block is slidably mounted on the centering rail; the first handwheel is mounted on the first movable block and acts on the second movable block to drive the second movable block to slide on the centering rail;

[0022] The second hand wheel and the two groups of support blocks are installed on the second movable block; the second hand wheel acts on the two groups of support blocks to adjust the relative movement between the two groups of support blocks; the two groups of support blocks act on the raw material.

[0023] Furthermore, the finger-simulating pressing portion includes a mounting plate, a pressing cylinder, a force sensor and a pressing head;

[0024] The mounting plate is provided on the frame and is used to support the pressing cylinder;

[0025] The two ends of the pressing cylinder are respectively connected to the force sensor and the pressing head. The pressing head is driven by the pressing cylinder to contact the raw material and applies a preset clamping force to the raw material according to the measurement result of the force sensor.

[0026] The force sensor is mounted on the mounting plate and is arranged adjacent to the cylinder assembly; the numerical control center controls the operation of the pressing cylinder based on data from the force sensor.

[0027] Furthermore, the pressing cylinder is a bidirectional cylinder, and both ends of the pressing cylinder are connected to the pressing head and the force sensor through push rods respectively.

[0028] Furthermore, the force sensor is a spring-type pressure sensor; the simulated finger pressing part also includes a support frame, which is fixed on the mounting pad, and a mounting shell with a hollow structure is installed on the support frame; the spring-type pressure sensor is installed in the mounting shell; one end of the spring of the spring-type pressure sensor is connected to the push rod of the pressing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 This is a front view of a rolling mill in a specific embodiment of the present invention;

[0031] Figure 2 A top view of a rolling mill in a specific embodiment of the present invention;

[0032] Figure 3 It is a right side view of a rolling mill in a specific embodiment of the present invention;

[0033] Figure 4This is a schematic diagram of the main power machinery of a rolling mill in a specific embodiment of the present invention;

[0034] Figure 5 This is a front view of the tensioning portion in a specific embodiment of the present invention;

[0035] Figure 6 It is a left side view of the relaxation portion in a specific embodiment of the present invention;

[0036] Figure 7 This is a schematic structural diagram of a finger-like pressing portion in a specific embodiment of the present invention;

[0037] Figure 8 This is a structural diagram of the middle part in a specific embodiment of the present invention;

[0038] Wherein: 1. Frame; 2. Rolling part; 21. Rolling rod; 22. Rolling head; 23. First servo motor; 24. First reducer; 25. Second servo motor; 26. Second reducer; 3. Tensioning part; 31. Tensioning rail; 32. Tensioning cylinder; 33. Locking handle; 34. Support wheel; 4. Centering part; 41. First movable block; 42. First hand wheel; 43. Second movable block; 44. Second hand wheel; 45. Support block; 46. Centering rail; 5. Finger-like pressing part; 51. Pressing cylinder; 52. Pressing rail; 53. Mounting plate; 54. Force sensor; 55. Mounting shell; 56. Spring; 57. Push rod; 58. Support frame; 59. Pressing head. DETAILED DESCRIPTION

[0039] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0040] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0041] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0042] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The illustrations only show components related to the present disclosure and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0043] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0044] In one embodiment of the present invention, a rolling mill is provided for rolling metal sealing rings with W-shaped and M-shaped cross sections, such as Figure 1-4 Shown, including:

[0045] Rack 1;

[0046] Rolling power unit, installed on the frame 1, used to provide rolling power;

[0047] The rolling section 2 is mounted on the frame 1 and includes two sets of parallel rolling rods 21. One end of each rolling rod 21 is driven by the rolling power unit for rotation, and the other end is fixed with a rolling head 22. The two rolling heads 22 are used to form a plastic rolling sealing ring in the rolling area when they are close together.

[0048] The roller rod 21 adjustment part is provided on the frame 1 and is used to drive the two sets of roller rods 21 to move parallel to each other and adjust the relative distance between the two sets of roller heads 22;

[0049] A plurality of tensioning parts 3 are provided on the frame 1 and are used to cooperate with each other to support the processing material of the sealing ring from the inner ring;

[0050] The centering portion 4 is provided on the frame 1 and is used to limit the raw material upstream of the rolling area so that the raw material is aligned with the rolling area during rolling;

[0051] The finger-like pressing portion 5 is provided on the frame 1 and is used to act on the raw material downstream of the rolling area to provide a pressing force for the raw material to be formed into a ring shape;

[0052] The numerical control center is used to control the operation of the adjusting part of the rolling rod 21, the tensioning part 3 and the centering part 4 and the finger-simulating pressing part 5.

[0053] In this embodiment, if Figure 4 As shown, the power for the parallel relative displacement of the rolling rod 21 is composed of the second servo motor 25 of the Z axis, the ball screw and the linear rail slider movement accessories that move up and down. The two rolling rods 21 are connected to the second reducer 26 through a coupling.

[0054] The rolling force of the rolling rod 21 is composed of the X-axis first servo motor 23 equipped with the first reducer 24 and two sets of constant speed spur gear transfer boxes. The first servo motor 23 transmits the torque to the two rolling shafts through the first reducer, transfer box and coupling.

[0055] The frame 1 of this embodiment is mainly used to install various components. A protective cover is provided on the frame 1, and the numerical control center is installed on the protective cover in the form of a control panel.

[0056] Preparation before rolling of the rolling mill of this embodiment:

[0057] (1) Adjust all the holding parts to the appropriate scale area according to the size of the parts (there are relevant diameter scales on the mounting plate).

[0058] (2) Start the power supply and gas source.

[0059] (3) Place the raw material on the holding part, adjust it to a suitable state, and adjust the centering part 4 to ensure that the raw material is clamped and aligned with the mold composed of the two rolling heads 22.

[0060] Check whether the position of the holding part is appropriate by starting the switch, and check whether the pressure of the finger-pressing part is within the range of 2-5KG. After adjusting to the appropriate position, the raw material is clamped in place.

[0061] This embodiment is provided with a rolling power unit, a rolling rod 21 adjustment unit, a tensioning unit 3 and a finger-like pressing unit 5 controlled by a numerical control center, so as to semi-automatically realize the plastic forming of the metal sealing ring. A single operator can complete all control processes, and the processed metal sealing ring product has strong stability and small processing errors, thereby achieving high processing efficiency and high yield.

[0062] In this embodiment, if Figure 1-4 As shown, the rolling power unit includes a first servo motor 23 and a first reducer 24; the output shaft of the first servo motor 23 is connected to the power input end of the first reducer 24, and the power output end of the first reducer 24 is connected to the two rolling rods 21;

[0063] The numerical control center controls the operation of the first servo motor 23 .

[0064] In this embodiment, if Figure 1-4 As shown, the adjustment portion of the rolling rod 21 includes a second servo motor 25 and a second reducer 26; the output shaft of the second servo motor 25 is connected to the power input end of the second reducer 26, and the power output end of the second reducer 26 is connected to at least one rolling rod 21;

[0065] The numerical control center controls the operation of the second servo motor 25 .

[0066] In this embodiment, if Figure 5 、 6 As shown, each tensioning section 3 is slidably mounted on a tensioning rail 31 perpendicular to the rolling rod 21; the tensioning section 3 includes a tensioning cylinder 32, a locking handle 33, and a support wheel 34; the tensioning cylinder 32 is slidably mounted on the tensioning rail 31; the locking handle 33 acts on the tensioning cylinder 32 and the tensioning rail 31 to lock or unlock the tensioning cylinder 32 on the tensioning rail 31; the support wheel 34 is mounted on the telescopic rod of the tensioning cylinder 32 and acts on the raw material;

[0067] The CNC center controls the operation of the tension and relaxation cylinder 32 .

[0068] Each tensioning portion 3 of this embodiment is a manual component. When the size of the raw material needs to be adjusted, the locking handle 33 is loosened and adjusted to the appropriate position. The locking handle 33 is tightened until the raw material is placed on all the support wheels 34. The raw material is stretched or relaxed by the extension and contraction of the tensioning cylinder 32.

[0069] In this embodiment, if Figure 7 As shown, the centering portion 4 includes a first movable block 41, a first hand wheel 42, a second movable block 43, a second hand wheel 44 and two sets of support blocks 45;

[0070] The first movable block 41 is mounted on the frame 1 and is provided with a centering rail 46; the second movable block 43 is slidably mounted on the centering rail 46; the first hand wheel 42 is mounted on the first movable block 41 and acts on the second movable block 43 to drive the second movable block 43 to slide on the centering rail 46;

[0071] The second hand wheel 44 and two groups of support blocks 45 are installed on the second movable block 43; the second hand wheel 44 acts on the two groups of support blocks 45 to adjust the relative movement between the two groups of support blocks 45; the two groups of support blocks 45 act on the raw material.

[0072] The centering portion 4 of this embodiment is mainly used to fine-tune the relative position of the raw material and the mold. The raw material is placed on two support blocks 45 and is limited by the two support blocks 45. In this embodiment, the relative position of the raw material and the mold can be detected by a detection fixture.

[0073] If the relative position is biased to the left or right, or there is a large gap between the raw material and the two support blocks 45 , the two support blocks 45 are driven by the second hand wheel 44 or the second movable block 43 is driven to adjust by adjusting the first hand wheel 42 .

[0074] When changing the mold or processing different raw materials, the first hand wheel 42 and the second hand wheel 44 need to be manually adjusted repeatedly to achieve the purpose of clamping the raw materials.

[0075] The two auxiliary support blocks 45 of this embodiment are mounted on the same screw rod, with positive and negative wires at both ends, so that the purpose of clamping or loosening the raw material can be achieved.

[0076] In this embodiment, if Figure 8 As shown, the imitation finger pressing part 5 includes a mounting plate 53, a pressing cylinder 51, a force sensor 54 and a pressing head 59;

[0077] The mounting plate 53 is provided on the frame 1 and is used to support the pressing cylinder 51;

[0078] The two ends of the pressing cylinder 51 are connected to a force sensor 54 and a pressing head 59, respectively. The pressing head 59 is driven by the pressing cylinder 51 to contact the raw material and apply a preset clamping force to the raw material based on the measurement results of the force sensor 54.

[0079] The force sensor 54 is mounted on the mounting plate 53 and is disposed adjacent to the cylinder assembly; the CNC center controls the operation of the pressing cylinder 51 based on data from the force sensor 54 .

[0080] In this embodiment, the pressing cylinder 51 is a bidirectional cylinder, and both ends of the pressing cylinder 51 are connected to the pressing head 59 and the force sensor 54 through a push rod 57 respectively.

[0081] In this embodiment, the force sensor 54 is a spring-type pressure sensor; the simulated finger pressing part 5 also includes a support frame 58, which is fixed on the mounting pad 53, and a hollow mounting shell 55 is installed on the support frame 58; a spring-type pressure sensor is installed in the mounting shell 55; one end of the spring 56 of the spring-type pressure sensor is connected to the push rod 57 of the pressing cylinder 51.

[0082] The pressing head 59 of this embodiment is a nylon pressing head.

[0083] The finger-like pressing portion 5 is mainly used to provide appropriate resistance when the raw material enters the rolling die, so that the raw material generates curvature and is rolled into a ring shape.

[0084] When the raw material is released, the pressing cylinder 51 contracts, and the nylon pressing head leaves the raw material. After leaving the raw material, the pressure of the load cell 54 is zero;

[0085] When the raw material is pressed, the pressing cylinder 51 extends and the nylon pressure head contacts the raw material. The force is equal to the pressure of the spring 56, and the pressure is displayed on the control panel. If the pressure needs to be adjusted, the preload force of the spring 56 can be changed by adjusting the tightness of the nut.

[0086] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A rolling mill, characterized in that: For rolling metal sealing rings, including: frame; A rolling power unit, mounted on the frame, for providing rolling power; The rolling part is arranged on the frame and includes two sets of parallel rolling rods; one end of each rolling rod is driven to rotate by the rolling power unit, and the other end is fixed with a rolling head; the two rolling heads are used to form a rolling area when they are close to each other to shape the sealing ring; A roller rod adjustment portion is provided on the frame and is used to drive the two groups of roller rods to move parallel to each other and adjust the relative distance between the two groups of roller heads; A plurality of tensioning parts are provided on the frame and are used to cooperate with each other to open the processing material of the sealing ring from the inner ring; a centering portion, provided on the frame, for limiting the position of the raw material from the rolling upstream of the rolling area so that the raw material is aligned with the rolling area during rolling; a finger-like pressing portion, provided on the frame, for acting on the raw material from the rolling downstream of the rolling area to provide a pressing force for the raw material to be formed into a ring shape; A numerical control center is used to control the operation of the roller rod adjustment part, the tensioning part, and the centering finger-simulating pressing part; Each of the tensioning parts is slidably mounted on a tensioning linear rail perpendicular to the rolling rod; the tensioning part includes a tensioning cylinder, a locking handle and a support wheel; the tensioning cylinder is slidably mounted on the tensioning linear rail; the locking handle acts on the tensioning cylinder and the tensioning linear rail to lock the tensioning cylinder on the tensioning linear rail or release the lock; the support wheel is mounted on the telescopic rod of the tensioning cylinder and acts on the raw material; The numerical control center controls the operation of the tension and relaxation cylinder; The finger-like pressing part includes a mounting plate, a pressing cylinder, a force sensor and a pressing head; The mounting plate is provided on the frame and is used to support the pressing cylinder; The two ends of the pressing cylinder are respectively connected to the force sensor and the pressing head. The pressing head is driven by the pressing cylinder to contact the raw material and applies a preset clamping force to the raw material according to the measurement result of the force sensor. The force sensor is mounted on the mounting plate and is arranged adjacent to the pressing cylinder; the numerical control center controls the operation of the pressing cylinder based on data from the force sensor.

2. The rolling mill according to claim 1, characterized in that The rolling power unit includes a first servo motor and a first reducer; the output shaft of the first servo motor is connected to the power input end of the first reducer, and the power output end of the first reducer is connected to the two rolling rods; The numerical control center controls the operation of the first servo motor.

3. The rolling mill according to claim 1, characterized in that The rolling rod adjustment unit includes a second servo motor and a second reducer; the output shaft of the second servo motor is connected to the power input end of the second reducer, and the power output end of the second reducer is connected to at least one of the rolling rods; The numerical control center controls the operation of the second servo motor.

4. The rolling mill according to claim 1, characterized in that The centering part includes a first movable block, a first hand wheel, a second movable block, a second hand wheel and two groups of support blocks; The first movable block is mounted on the frame and is provided with a centering rail; the second movable block is slidably mounted on the centering rail; the first handwheel is mounted on the first movable block and acts on the second movable block to drive the second movable block to slide on the centering rail; The second hand wheel and the two groups of support blocks are installed on the second movable block; the second hand wheel acts on the two groups of support blocks to adjust the relative movement between the two groups of support blocks; the two groups of support blocks act on the raw material.

5. The rolling mill according to claim 4, characterized in that The pressing cylinder is a bidirectional cylinder, and both ends of the pressing cylinder are connected to the pressing head and the force sensor through push rods respectively.

6. The rolling mill according to claim 5, characterized in that The force sensor is a spring-type pressure sensor; the simulated finger pressing part also includes a support frame, which is fixed on the mounting pad, and a mounting shell with a hollow structure is installed on the support frame; the spring-type pressure sensor is installed in the mounting shell; one end of the spring of the spring-type pressure sensor is connected to the push rod of the pressing cylinder.

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