High-efficiency spinning locking rapid separation device

Abstract

The high-efficiency spinning locking rapid separation device is suitable for connecting or machining an aviation rocker arm part and a rocker arm pin through a machine tool, the rocker arm part comprises a rocker arm rod and a cylindrical end which are integrally connected, and the rocker arm part comprises a tilting rod assembly and a base; the rocker arm rod is installed on the base through a rocker arm pin in the mode that the rocker arm rod can move in the vertical direction, the bottom face of the base is installed on a supporting table of a machine tool, and the top face of the base can support the rocker arm rod in the initial state. One end of the tilting rod assembly is installed in the base in a rotatable mode and can make contact with the bottom end of the rocker arm pin under the action of the base, the other end of the tilting rod assembly is a free end, and after a spin riveting rod of a machine tool fastens and connects the rocker arm pin and one end of the rocker arm in a spin riveting mode, the free end is manually pressed down, and the rocker arm pin and the rocker arm pin are fixed. Uniform force is transmitted through one end of the tilting rod assembly so as to assist the rocker arm pin to be detached from or taken down from the base, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rocker arm parts processing devices, and in particular relates to a high-efficiency spinning locking quick separation device. Background Art

[0002] The rocker parts include an integrally connected rocker rod and a cylindrical end. A tightly connected rocker pin needs to be set at one end of the rocker rod. The traditional process uses a machine tool to press down the rocker pin placed on the substrate. During the whole process, the cylindrical end is kept moving in the vertical direction as much as possible. After the rivet rod of the machine tool is pressed down, the rocker pin needs to be removed from the substrate. Generally, during the spinning and locking process, the non-locking end is squeezed and deformed due to plastic deformation. After its diameter increases, it brings great difficulties to the workers' operation. When the axial spinning locking force of the spinning lock reaches 19.8Nm~29N.m, the workpiece is difficult to load and unload normally due to severe deformation. Workers must rely on manual operation, but the lifting force of manual operation is often uneven. The rocker pin is lifted out under uneven force, causing the rocker pin to be locally stressed. The rocker pin is severely strained in the axial direction, causing the entire part to need secondary repair or be scrapped, resulting in reduced processing efficiency. Summary of the invention

[0003] In view of this, the high-efficiency spinning locking quick separation device provided by the present invention solves the technical problem that the existing method causes low processing efficiency of rocker arm parts.

[0004] A high-efficiency spinning locking quick-release device is suitable for connecting or processing aviation rocker parts and rocker pins through machine tools. The rocker parts include an integrally connected rocker rod and a cylindrical end, including a tilting lever assembly and the base. The rocker rod is mounted on the base in a manner that it can move in the vertical direction through the rocker pin, wherein the bottom surface of the base is mounted on a support table of the machine tool, and the top surface can support the rocker rod in an initial state; one end of the tilting lever assembly is rotatably mounted in the base and can contact the bottom end of the rocker pin under the action of the base, and the other end is a free end. After the rivet rod of the machine tool fastens the rocker pin to one end of the rocker arm by centrifugal riveting, the free end is manually pressed down to transmit uniform force through one end of the tilting lever assembly to assist in the disassembly or removal of the rocker pin from the base.

[0005] Beneficial Effects

[0006] The structure of the present invention has successfully overcome the problems faced by superalloy materials after spin - locking. That is, due to plastic deformation of the rocker pin, during the shedding process, the rocker shaft is severely strained, which in turn leads to problems such as out - of - tolerance dimensions and technical conditions. It improves the process stability and machining accuracy. Moreover, the arc - shaped hinge mechanical transformation design of the rocker of the rocker assembly transforms the smaller moment of the power arm of the lever mechanism through the ingenious transformation of the circular arc fulcrum into rotational power, and further converts it into a larger constant axial impact force. This not only successfully realizes the rapid detachment of the workpiece, improves the processing efficiency, but also eliminates the safety hazards during the operation of workers. The collaborative design of the spring, plug, and dome pin of the rocker assembly constructs an elastic balance adjustment mechanism. It converts the mechanical force of the rocker into elastic potential energy, enhances the rotational flexibility, and ensures the stability and reliability of the device under static and dynamic conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0008] Figure 1 is a schematic structural diagram of a cylinder;

[0009] Figure 2 is a front - view cross - sectional view of the overall structure;

[0010] Figure 3 is a schematic structural diagram of the rocker;

[0011] Figure 4 is an assembly schematic diagram of the pin, where,

[0012] 11. Rocker arm; 12. Cylindrical end; 2. Rocker pin; 31. Base plate; 32. Cylinder; 321. First hole; 322. Second hole; 323. Third hole; 324. Notch; 4. Pin; 51. Rocker; 52. Spring; 53. Plug; 54. Dome pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0014] The following describes the embodiments of the present disclosure through specific specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. The present disclosure can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present disclosure.

[0015] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present disclosure, those skilled in the art should understand that one 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 the device and / or practice the method. Additionally, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0016] It should also be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present disclosure in a schematic manner, and only show the components related to the present disclosure, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0017] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the aspects can be practiced without these specific details.

[0018] As Figures 1 to 4 shown, the high-performance spinning locking and quick separation device is applicable to connecting or machining the aviation rocker arm part and the rocker arm pin 2 through a machine tool. The rocker arm part includes an integrally connected rocker arm rod 11 and a cylindrical end 12. The rocker arm rod 11 sleeves the rocker arm pin 2, and the two need to be pressed together as a whole. It includes a lever assembly and a base. The rocker arm rod 11 is installed on the base in a manner that can move in the vertical direction through the rocker arm pin 2. Among them,

[0019] The bottom surface of the base is installed on the support table of the machine tool, and the top surface can support the rocker arm rod 11 in the initial state;

[0020] One end of the rocker arm assembly is rotatably installed in the base and can contact the bottom end of the rocker pin 2 under the action of the base. The other end is a free end. After the riveting rod of the machine tool fastens the rocker pin 2 and one end of the rocker arm 11 by centrifugal riveting, the free end is manually pressed down to transmit uniform force through one end of the rocker arm assembly to assist in disassembling or removing the rocker pin 2 from the base.

[0021] In the traditional way, after the rocker pin 2 is pressed down by the machine tool on the base, in order to remove the rocker pin 2 from the base, the rocker rod 11 is often manually tilted to disassemble. Due to the uneven disassembly force and the eccentric angle between the rivet rod and the rocker pin 2, the extrusion and fluidity of the material lead to further extrusion and deformation during the spinning and locking process, and the material extends to the surroundings and the diameter increases. This deformation not only affects the dimensional tolerance and position of the rocker parts, but also leads to poor straightness of the rocker rod 11 and upsetting at the root of the end face, which cannot meet the assembly requirements, and workers must rely on manual operation. However, the manual lifting force is often uneven, and the rocker pin 2 is lifted out under uneven force, causing the rocker pin 2 to be locally stressed and severely strained in the axial direction. In addition, the bending and extrusion force generated during the lifting process will also cause friction between the rocker pin 2 and the lifting tool or the rocker hole, thereby causing scratches on the outer circle of the rocker pin 2. However, the structure of the present invention uniformly applies an upward thrust from the bottom of the rocker pin 2 through the tilting rod assembly to assist the rocker pin 2 in being removed from the base, significantly improving the problem that the rocker pin 2 is difficult to quickly disengage from the first hole wall after the high-temperature alloy material is spun and locked. It ensures that the spun locking has extremely high size, shape, and position accuracy, thereby improving the locking qualification rate. It realizes rapid loading and unloading, improves production efficiency, and eliminates safety hazards.

[0022] In a specific embodiment, the base includes an integrally arranged base plate 31 and a cylinder 32, wherein assembly holes are arranged at intervals on the edge of the base plate 31, and the assembly holes are used to install the base plate 31 on the support table of the machine tool. Preferably, the number of assembly holes is 4, and the assembly holes are arranged in a U-shaped structure, which not only reduces the weight of the base and facilitates loading and unloading and installation, but also enhances the compatibility of the device with different equipment, facilitates the adjustment of the position of the device in different equipment, and meets different spinning and locking requirements. The cylinder 32 is arranged in the central area of ​​the top surface of the base plate 31, and a first hole 321 is arranged in the central area of ​​the top surface of the cylinder 32 and in the vertical direction, and a second hole 322 is arranged radially adjacent to the bottom end of the cylinder 32, and the bottom end of the first hole 321 is connected to one end of the second hole 322 facing the center line of the cylinder 32;

[0023] The rocker arm pin 2 is fitted with the first hole 321 in an interference fit manner. Under the action of the riveting rod of the machine tool, the rocker arm pin 2 moves vertically in the first hole 321 until it contacts one end of the rocker lever assembly. For example, the rocker arm pin 2 is fitted with the first hole 321 in a slight interference fit manner, such as the press-fit method. The rocker arm pin 2 can move vertically in the first hole 321, and the rocker lever assembly is installed in the second hole 322 in a rotatable manner.

[0024] Furthermore, for the implementation manner of the rotation structure of the rocker lever assembly, for example, third holes 323 are symmetrically arranged in the circumferential direction of the cylinder 32 and along the width direction of the second hole 322, and the third holes 323 communicate with the second hole 322. The third holes 323 are used for the installation of the pins 4. The rocker lever assembly is installed on the pins 4 in a rotatable manner, and a notch 324 is provided on one side or end of the cylinder 32 away from the free end. The step formed by the notch 324 is used to support the cylindrical end 12. Preferably, the side surface of the cylinder 32 where the notch 324 is provided is arranged in an arc structure, and the shape of the arc structure is adapted to the shape of the cylindrical end 12 for circumferential limitation of the cylindrical end 12 to prevent the cylindrical end 12 from rotating during the process of the rocker arm pin 2 being pressed down.

[0025] Furthermore, the pin 4, that is, the positioning pin, can ensure that the fulcrum does not undergo relative displacement during the force application process, thereby ensuring the stability of the lever system and increasing the ability of the fulcrum to bear a large axial force and torque.

[0026] In a specific embodiment, the rocker lever assembly includes a rocker lever 51 arranged in a multi-segment broken-line arc structure. One end of the rocker lever 51 is located below the first hole 321. After the rocker arm pin 2 is pressed down by the riveting rod of the machine tool, the bottom end of the rocker arm pin 2 contacts one end of the rocker lever 51.

[0027] The pin 4 passes through the lever 51 in an interference fit manner, and an arc-shaped portion is provided circumferentially around the lever 51 for reinforcement. The purpose is: to be able to form a support point and determine the resistance arm (the perpendicular distance from the fulcrum to the tipping point). It not only determines the magnitude of the moment but also determines the rotation direction and speed of the lever 51. At a position parallel to the reference hole at the bottom, a support point of the mechanism is determined to ensure that the driving moment is greater than the resistance moment, increasing the driving force and reducing the resistance. Moreover, the lever assembly belongs to the type of high load and frequent movement. Therefore, the lever 51 adopts an arc-shaped hinge design, effectively forming a connecting torsion mechanism between the fulcrum and the tipping point of the tipping point. One end of the free end is at a height in the vertical direction adjacent to or higher than the top surface of the cylinder 32. Preferably, the arc-shaped portion forms an intersection with the bottom of the second hole 322, and the intersection is used as the support point to improve the transmission efficiency of the lever assembly; and / or, the second hole 322 is provided with a stepped hole or stepped groove structure. The large end of the stepped hole is adjacent to the free end and the small end communicates with the first hole 321. Its working principle: According to the required warping moment and the balance condition of the lever, on the side surface of the 90° direction perpendicular to the radial depth direction of the stepped groove (the second hole 322), the key position of the positioning hole for the installation of the fulcrum of the mechanism is designed. The positioning hole is designed as a through positioning hole, making up for the limitation of the space controlled by the part structure of the stepped groove of the device. It is not only convenient for the assembly of the device, but also beneficial to the subsequent maintenance of the device and the replacement of key components, extending the service life of the device. Ensuring the accuracy of the fulcrum position guarantees the length of the force arm and the mechanical efficiency, thereby improving the accuracy and reliability of the lever system. Moreover, the resistance arm (the perpendicular distance from the fulcrum to the tipping point) is further determined, not only determining the magnitude of the moment but also determining the rotation direction and speed of the lever 51. The determination of this position ensures that the driving moment is greater than the resistance moment, increasing the driving force and reducing the resistance.

[0028] Furthermore, the pin 4 passes through the toggle lever 51 in an interference fit manner and is reinforced by an arc-shaped portion circumferentially arranged on the toggle lever 51 to form a toggle point in the second hole 322. The toggle point is designed as an arc shape, which can ensure smoother contact between the toggle lever 51 and the bottom end of the rocker shaft, effectively disperse the contact pressure, avoid stress concentration during the operation of the lever mechanism, and reduce the risk of parts being damaged due to excessive stress. The tangent point of the arc R of the toggle point has closer and smoother contact with the bottom end of the workpiece, so that even when the force application arm obtains a small torque, a large output rotational force can be generated through the rotation of the arc-shaped fulcrum, and the rotational force is converted into a large and constant vertically upward elastic potential energy to quickly eject the workpiece, thereby reducing friction and wear. In practice, surface hardening treatment is required at the toggle point to increase the surface hardness, enhance the anti-wear ability, extend the service life of the toggle lever 51, reduce the tooling cost. At the same time, the arc-shaped structure design of the support point of the toggle lever 51 reduces the sliding friction with the base surface through the rolling contact of the arc on the base surface, can evenly distribute the acting force on the contact surface, avoid stress concentration, prevent local overload and damage of the base body, and thus ensure the stability of the transmission. In the case of high load, the arc-shaped structure can ensure smooth contact with the end face of the base body, reduce the movement resistance, improve the movement efficiency of the mechanism. At the same time, the pin 4 and the third hole 323 are in interference fit, which can ensure that the fulcrum does not undergo relative displacement during the force application process and increase the ability of the fulcrum to bear a large axial force and torque.

[0029] Furthermore, the installation hole of the fulcrum of the toggle lever 51 and the arc rotation direction of the toggle point are designed to be consistent, which can ensure the directness and efficiency of the force transmission path, reduce the deflection or dispersion of the force, so that the applied force can be more effectively transmitted to the resistance arm. Preferably, the handle part of the toggle lever 51 adopts a knurling design to increase the friction of the operating part of the toggle lever 51, enabling the operator to hold and operate more easily, and is suitable for use in environments where a large torque needs to be applied or frequent operations are required.

[0030] Furthermore, the toggle lever assembly further includes a spring assembly. The spring assembly is adjacent to one end of the second hole 322 facing the free end and can continuously contact the toggle lever 51. When the free end is pressed down, one end of the toggle lever 51 applies an upward uniform thrust to the bottom end of the rocker pin 2 to assist the rocker pin 2 to be taken out from the first hole 321, and the spring assembly generates a resilience force when compressed to reset the free end. Specifically,

[0031] The base is provided with a fourth hole at a position in the vertical direction and adjacent to the outlet end of the second hole 322. The fourth hole extends to the bottom surface of the second hole 322 and communicates with the second hole 322. The spring assembly includes a spring 52, a plug 53 and a dome pin, wherein,

[0032] A plug 53 is provided on the bottom surface of the fourth hole. The top surface of the plug 53 is assembled with the bottom surface of the spring 52. The top surface of the spring 52 is assembled with the bottom surface of the dome pin, and the top surface of the dome pin is in continuous contact with the rocker lever 51.

[0033] It should be noted that: The spring 52 plays a supporting role in the lever mechanism. It balances the force transmitted to the rocker lever 51 by the elastic force or provides a restoring force to ensure the stability of the entire lever mechanism.

[0034] The plug 53 is designed as a cylindrical plug with an open-end axial groove. Its nominal thread diameter and length dimensions need to be determined through precise mechanical calculations to meet the reliability of the threaded connection between the plug 53 and the base in this device, and to ensure the adjustability under the requirements of torque bearing capacity and strength. The circular groove in the axial section of the plug 53 has an inner diameter of the outer diameter of the spring 52 (D + 0.1), and the groove depth is designed as 1.2 times the compressed height (L) of the spring 52. At the other end of its axis, to adapt to different load conditions of the lever mechanism and to be able to automatically fine-tune during the working process to ensure the balance of the entire mechanism.

[0035] The dome pin: is designed as a semi-circular dome pin, and uses a circular arc surface to contact the rocker lever 51, which not only improves the inclusiveness of the mechanism, reduces manufacturing errors, but also effectively reduces friction and wear during the working process.

[0036] Furthermore, one end of the above-mentioned rocker lever 51 serves as a fulcrum. When the length of the rocker arm pin 2 is less than that of the first hole 321, a top pin is provided at the fulcrum position according to the design requirements, and a uniform force is transmitted from the top of the top pin to the bottom of the rocker arm pin 2 to assist in the disassembly of the rocker arm pin 2 from the cylinder 32.

[0037] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present disclosure should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A high-efficiency spinning locking quick-release device, suitable for connecting or processing aviation rocker parts and rocker pins through machine tools, the rocker parts comprising an integrally connected rocker rod and a cylindrical end, characterized in that: It comprises a rocker arm assembly and the base, wherein the rocker arm is mounted on the base in a manner that it can move in the vertical direction through a rocker arm pin, wherein: The bottom surface of the base is mounted on the support table of the machine tool, and the top surface is capable of supporting the rocker arm in the initial state; One end of the rocker arm assembly is rotatably mounted in the base and can contact the bottom end of the rocker arm pin under the action of the base, and the other end is a free end. After the rocker arm pin is fastened to one end of the rocker arm by centrifugal riveting on the machine tool's riveting rod, the free end is manually pressed down to transmit uniform force through one end of the rocker arm assembly to assist in disassembling or removing the rocker arm pin from the base.

2. The high-efficiency spinning and locking quick-release device according to claim 1 is characterized in that: The base comprises a base plate and a cylinder arranged in an integral manner, wherein: The edge of the base plate is provided with assembly holes at intervals, and the assembly holes are used for mounting the base plate on the support table of the machine tool. The cylinder is provided in the central area of ​​the top surface of the base plate, a first hole is provided in the central area of ​​the top surface of the cylinder in the vertical direction, a second hole is provided in the radial direction adjacent to the bottom end of the cylinder, and the bottom end of the first hole is connected to one end of the second hole facing the center line of the cylinder; The rocker pin is fitted with the first hole in an interference fit manner, and under the action of the riveting rod of the machine tool, the rocker pin moves in the first hole along the vertical direction until it contacts one end of the rocker assembly; The tilting lever assembly is rotatably mounted in the second hole.

3. The high-efficiency spinning and locking quick-release device according to claim 2 is characterized in that: A third hole is symmetrically arranged around the cylinder and along the width direction of the second hole, and the third hole is connected to the second hole. The third hole is used for installing a pin, and the tilting rod assembly is rotatably installed on the pin.

4. The high-efficiency spinning and locking quick-release device according to claim 3 is characterized in that: A notch is arranged on one side or one end of the cylinder away from the free end, and a step formed by the notch is used to support the cylindrical end.

5. The high-efficiency spinning and locking quick-release device according to claim 4 is characterized in that: The cylinder is provided with an arc structure on the side surface formed by the notch, and the shape of the arc structure is adapted to the shape of the cylindrical end, so as to limit the position of the cylindrical end.

6. The high-efficiency spinning and locking quick-release device according to claim 4 is characterized in that: The tilting rod assembly includes a tilting rod with multiple sections of broken line arc structure, wherein: One end of the tilting rod is placed below the first hole, and after the rocker pin is pressed down by the riveting rod of the machine tool, the bottom end of the rocker pin contacts one end of the tilting rod; The pin passes through the tilting rod in an interference fit manner and an arc-shaped portion parallel to the positioning pin is arranged in the circumference of the tilting rod to limit the rotation angle and reinforce it. One end of the free end is close to the top surface of the cylinder or higher than the top surface of the cylinder in the vertical direction; and / or, the second hole is arranged in a stepped hole structure, the large end of the stepped hole is close to the free end and the small end is connected to the first hole.

7. The high-efficiency spinning and locking quick-release device according to claim 6, characterized in that: The tilt lever assembly also includes a spring assembly, which is adjacent to the second hole and one end of the spring assembly is toward the free end and can be in continuous contact with the tilt lever. When the free end is pressed down, one end of the tilt lever applies a uniform upward thrust to the bottom end of the rocker pin to assist the rocker pin in being removed from the first hole, and the spring assembly is compressed to generate a rebound force that can reset the free end.

8. The high-efficiency spin-lock quick-release device according to claim 7, characterized in that: The base is provided with a fourth hole in the vertical direction and adjacent to the outlet end of the second hole, the fourth hole extends to the bottom surface of the second hole and communicates with the second hole, the spring assembly includes a spring, a screw plug and a dome pin, wherein, The bottom surface of the fourth hole is provided with a screw plug, the top surface of the screw plug is assembled with the bottom surface of the spring, the top surface of the spring is assembled with the bottom surface of the dome pin, and the top surface of the dome pin is in continuous contact with the tilting rod.

9. The high-efficiency spin-lock quick-release device according to claim 8, characterized in that: The number of the assembly holes is 4.

10. The high-efficiency spin-lock quick-release device according to claim 8, characterized in that: The assembly hole is arranged in a U-shaped structure.

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