Polishing device for laser welding fusion surface of C-shaped metal sealing ring

Abstract

The polishing device for the laser welding fusion face of the C-shaped metal sealing ring is suitable for machining a notch of the C-shaped metal sealing ring and comprises an upper shell, a lower shell, a polishing wheel and a driving assembly which are of an L-shaped structure, the upper shell is made of transparent materials, one end of the upper shell is hinged to one side edge of the top face of the lower shell in the width direction, and the other end of the upper shell is a free end; the lower shell can rotate around the lower shell; a kidney-shaped hole is formed in the position, close to the hinged end, of the top face of the lower shell, the kidney-shaped hole is used for part of the polishing wheel to stretch out so as to machine a notch of the C-shaped metal sealing ring, the driving assembly is installed on the bottom face of the lower shell and can support and drive the polishing wheel to rotate, and the machining efficiency of the sealing ring is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal seal ring sealing part processing device, and particularly relates to a polishing device for a laser-welded fusion surface of a C-shaped metal seal ring. BACKGROUND

[0002] With the continuous improvement of the performance requirements of an aero-engine, the machining quality of a C-shaped metal seal ring as a key sealing element directly affects the reliability of the whole machine. At present, the ring is generally formed by laser welding of the open sections, however, a small excess height, a bite edge and a heat affected zone are formed in the fusion surface area during the welding process, which leads to the profile size of the part being out of tolerance and the surface being rough. These microscopic defects are prone to form stress concentration points after being assembled under pressure, which seriously weakens the service life and sealing efficiency of the seal ring. At present, the polishing treatment of the inner wall of the deep and narrow annular cavity mainly depends on manual polishing by an operator, and has the disadvantages of low work efficiency, poor consistency, high labor intensity and easy damage to the base, thereby reducing the machining efficiency. SUMMARY

[0003] The polishing device for the laser-welded fusion surface of the C-shaped metal seal ring provided by the application solves the technical problem of low machining efficiency of the seal ring caused by the existing method. The technical solution of the application has many technical advantages, which are described as follows: The polishing device for the laser-welded fusion surface of the C-shaped metal seal ring is suitable for the machining of a C-shaped metal seal ring cutout, and comprises an upper shell, a lower shell, a polishing wheel and a driving assembly arranged in an L-shaped structure, wherein, The upper shell is made of a transparent material, one end of the upper shell is hingedly connected to one side of the top surface of the lower shell in the width direction, the other end of the upper shell is a free end, the upper shell can rotate around the lower shell, and the flying of particles from the seal ring cutout is prevented during machining; A waist-shaped hole is arranged on the top surface of the lower shell close to the hinged end, and the waist-shaped hole is used for the extension of part of the polishing wheel to machine the C-shaped metal seal ring cutout; The driving assembly is installed on the bottom surface of the lower shell and can support and drive the polishing wheel to rotate.

[0004] Compared with the prior art, the technical solution provided by the application has the following advantages: The device is suitable for the polishing machining of the laser-welded fusion surface of a C-shaped metal seal ring of any size and any metal material, can ensure the stability of the polishing of the laser-welded fusion surface of the C-shaped metal seal ring, can eliminate the welding quality problems caused by the traditional treatment of the fusion surface in the form of deburring, can accurately adjust the rotating speed of the polishing wheel, can conveniently replace the polishing wheel, and the operator can perform the polishing operation through the upper cover plate, thereby avoiding personnel safety problems. BRIEF DESCRIPTION OF DRAWINGS

[0005] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0006] Fig. 1 The schematic view of the combined upper shell and lower shell of the present application; Fig. 2 The front view of the overall structure, wherein, 1, upper shell; 2, polishing wheel; 3, hinge; 4, lower shell; 5, fixed frame; 6, rotating shaft; 7, transmission belt; 8, motor; 9, support frame; 10, swing door; 11, sealing ring. DETAILED DESCRIPTION

[0007] The embodiments of the present application will be described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0008] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the present application, 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, an apparatus and / or method can be implemented using any number of the aspects described herein. In addition, this apparatus and / or method can be implemented using other structures and / or functionality in addition to or other than one or more of the aspects described herein.

[0009] It is also necessary to indicate that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The actual implementation of each component can be a random change, and the component layout can be more complex.

[0010] In addition, in the following description, specific details are provided in order to facilitate a thorough understanding of the examples. However, one skilled in the art will understand that aspects can be practiced without these specific details. In order to make the technical personnel of the art better understand the present application scheme, the present application is further described in detail below in combination with the drawings and specific embodiments. The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0011] As Figs. 1-2 The polishing device for the laser welding fusion surface of the C-shaped metal seal ring 11 is suitable for the machining of the cut of the C-shaped metal seal ring 11, and includes an upper shell 1, a lower shell 4, a polishing wheel 2 and a driving assembly arranged in an L-shaped structure. Preferably, the surface of the polishing wheel 2 is coated with polishing paste to improve the polishing efficiency. Among them, The upper shell 1 is made of transparent material, one end is hinged to one side of the top surface of the lower shell 4 in the width direction, for example, by means of a hinge 3, and the other end is a free end, which can rotate around the lower shell 4, for example, by 90°. The upper shell 1 is rotated to the horizontal position, which can prevent the particles and the like of the seal ring 11 cut from splashing during the machining process, and can facilitate the operator to perform the polishing operation through the upper cover plate, avoiding personnel safety problems; The top surface of the lower shell 4 is provided with a waist-shaped hole near the hinged end, which is used for the extension of part of the polishing wheel 2 to machine the cut of the C-shaped metal seal ring 11. It can be suitable for polishing machining of the welding fusion surface of the C-shaped metal seal ring 11 of any size and any metal material, ensuring the stability of the polishing of the welding fusion surface of the C-shaped metal seal ring 11, and excluding the welding quality problems caused by the traditional deburring of the operator to the fusion surface; The driving assembly is installed on the bottom surface of the lower shell 4, which can support and drive the polishing wheel 2 to rotate.

[0012] In one embodiment, the side surface of the lower shell 4 away from the hinged end is provided in an open structure and is movably installed with a sliding door 10 for observing the working state of the driving assembly.

[0013] In one embodiment, the driving assembly comprises a support frame 9 and a motor 8, wherein the support frame 9 is mounted on the bottom surface of the lower shell 4 and is adjacent to the horizontal sliding door 10, and the support frame 9 is used for mounting the motor 8.

[0014] Further, the driving assembly further comprises a pair of fixing frames 5, a rotating shaft 6, a transmission belt 7 and bearings. The polishing wheel 2 is fixedly installed on the rotating shaft 6, for example, a clamping groove is arranged at the midpoint of the rotating shaft 6, the polishing wheel 2 is placed in the clamping groove, and the polishing wheel 2 is clamped on both sides through hexagonal nuts, gaskets and the like, or is connected in a key connection manner and is fastened through nuts. The fixing frame 5 is fixedly installed on the bottom surface of the lower shell 4 and is spaced apart from the support frame 9, the top end of each fixing frame 5 is fixedly connected with the outer ring of the bearing, and the two ends of the rotating shaft 6 are rotatably connected with the inner rings of the bearings and leave protruding sections; One of the protruding sections is rotatably connected with the rotating end of the motor 8 through the transmission belt 7, so as to drive the rotating shaft 6 to rotate and drive the polishing wheel 2 to rotate, thereby realizing the machining of the cut of the C-shaped metal sealing ring 11. Preferably, the outer side surface of the lower shell 4 is respectively provided with lugs, the lugs are provided with threaded holes, and the lugs are used for fixing the lower shell 4.

[0015] Machining steps: The machining process of the process device of the embodiment is as follows: Step 1: uniformly smear polishing paste on the surface of the polishing wheel 2, then place the polishing wheel 2 in the clamping groove at the midpoint of the rotating shaft 6, and fix the polishing wheel 2 and the rotating shaft 6 by using nuts to prevent relative movement.

[0016] Step 2: adjust the rotating speed of the motor 8 to a set value according to the process, and wait for the rotating speed to be stable.

[0017] Step 3: the operator is not allowed to wear gloves for operation, places the C-shaped metal sealing ring 11 on the top surface of the lower shell 4 in the direction of the fracture, and uses both hands to bend the fracture of the C-shaped metal sealing ring 11 by a certain angle, and then slowly translates the C-shaped metal sealing ring 11 in the direction of the fracture; when the welding fusion surface of the C-shaped metal sealing ring 11 is in perfect contact with the polishing wheel 2, the operator uses both hands to keep the C-shaped metal sealing ring 11 stationary.

[0018] Step 4: the operator takes out the C-shaped metal sealing ring 11 after 3-5 minutes, turns off the motor 8, and then observes the roughness and adhesion of the welding fusion surface by moving the horizontal sliding door; if the roughness and adhesion of the C-shaped metal sealing ring 11 meet the requirements, steps 2 to 3 do not need to be repeated, otherwise, steps 2 to 3 need to be repeated until the requirements are met.

[0019] Step 5: the machining is completed, and the machining of the next C-shaped metal sealing ring 11 is repeated.

[0020] The product provided by the present application is described in detail above. The principle and implementation mode of the present application are described by applying specific examples in this paper, and the above description of the examples is only used to help understand the core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A polishing device for the laser welding fusion surface of a C-type metal sealing ring, suitable for processing the cut of a C-type metal sealing ring, characterized in that, It includes an L-shaped upper housing, a lower housing, a polishing wheel, and a drive assembly, wherein, The upper shell is made of transparent material, with one end hinged to one side of the top surface of the lower shell in the width direction, and the other end being a free end that can rotate around the lower shell. A waist-shaped hole is provided on the top surface of the lower housing near the hinge end. The waist-shaped hole is used for the extension of part of the polishing wheel to process the cut of the C-shaped metal sealing ring. The drive assembly is mounted on the bottom surface of the lower housing and can support and drive the polishing wheel to rotate.

2. The polishing apparatus according to claim 1, characterized in that, The side of the lower housing along its length and away from the hinge end is configured as an open structure and is equipped with a swing door that can be movably installed for observing the working status of the drive assembly.

3. The polishing apparatus according to claim 2, characterized in that, The drive assembly includes a support frame and a motor, wherein... The support frame is installed on the bottom surface of the lower housing and is located near the swing door. The support frame is used for the installation of the motor.

4. The polishing apparatus according to claim 3, characterized in that, The drive assembly also includes a pair of fixed brackets, a rotating shaft, a transmission belt, and bearings, wherein, A polishing wheel is fixedly installed on the rotating shaft. The fixing frame is fixedly installed on the bottom surface of the lower housing and is spaced apart from the support frame. The top of each fixing frame is fixedly connected to the outer ring of the bearing, and the two ends of the rotating shaft are rotatably connected to the inner ring of the bearing, with an extension section. One of the extended sections is rotatably connected to the rotating end of the motor via a transmission belt to drive the rotating shaft to rotate, which in turn drives the polishing wheel to rotate, thereby processing the C-shaped metal sealing ring cut.

5. The polishing apparatus according to claim 4, characterized in that, Lugs are installed on the outer side of the lower housing, and the lugs have threaded holes for fixing the lower housing.

6. The polishing apparatus according to claim 4, characterized in that, The free end of the upper shell is spaced apart from the top surface of the lower shell.

7. The polishing apparatus according to claim 1, characterized in that, The surface of the polishing wheel is coated with polishing paste to improve polishing efficiency.

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