Polishing device for mechanical sealing element

Abstract

The utility model relates to a mechanical sealing element polishing device which comprises a machine frame and a sealing cover, the sealing cover is installed on a table top of the machine frame, a lead screw assembly and a polishing assembly are installed in the sealing cover, a guide rail of the lead screw assembly is arranged in the length direction of the machine frame, and a sliding table is installed on the guide rail. The sliding table is provided with a clamp used for clamping a workpiece, the lead screw assembly drives the clamp to do reciprocating linear motion along the guide rail, the grinding assembly comprises a mounting frame, a lifting electric push, a motor and a grinding head, the mounting frame is vertically mounted on the table top of the rack, the lifting electric push is vertically fixed to the mounting frame, and the motor is connected with the grinding head. The output end of the motor is connected with the motor, and the output end of the motor is arranged downwards and connected with the grinding head. Closed automatic machining operation is achieved, manual work is not needed in the whole operation, the labor intensity of workers is reduced, automatic standard operation is achieved, and the machining precision of workpieces is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seal processing tooling, in particular to a mechanical seal polishing device. Background Art

[0002] Mechanical seals are devices used to prevent fluid or gas leakage. They connect two or more relatively moving parts together through mechanical devices to achieve a sealing effect. Mechanical seals are widely used in rotating mechanical equipment in chemical, petroleum, pharmaceutical, food and other industrial fields, such as centrifugal pumps, mixers, etc. The working principle of mechanical seals is mainly based on the friction seal method, and the sealing effect is achieved through two relatively rotating sealing rings. One of the sealing rings is fixed on the fixed part, and the other sealing ring is fixed on the rotating part. The sealing ring is usually made of materials with good wear resistance and high hardness, such as cemented carbide, silicon carbide, aluminum oxide, etc. The sealing performance of the sealing ring is largely determined by the flatness of the sealing surface, so that the spring can provide the pressing force to ensure good contact between the sealing ring and the sealing surface. The filler is used to fill between the sealing parts to prevent leakage. At present, the existing sealing ring grinding is mostly done by manual hand-held grinding when grinding the sealing surface. The flatness of the sealing surface depends on the proficiency of the workers, and the product precision has a large human error, so it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a mechanical seal polishing device to address the above problems.

[0004] A mechanical seal polishing device comprises a frame and a sealing cover, wherein the sealing cover is mounted on a table top of the frame, a screw assembly and a polishing assembly are mounted in the sealing cover, a guide rail of the screw assembly is arranged along the length direction of the frame, a slide is mounted on the guide rail, a fixture for clamping a workpiece is mounted on the slide, the screw assembly drives the fixture to perform reciprocating linear motion along the guide rail, and the polishing assembly comprises a mounting frame, a lifting electric pusher, a motor and a polishing head, the mounting frame is vertically mounted on the table top of the frame, the lifting electric pusher is vertically fixed on the mounting frame, and its output end is connected to the motor, the output end of the motor is arranged downward and connected to the polishing head.

[0005] Preferably, the clamp includes a base, a plurality of jaws, a base ring platform, a screw and a nut. The base is connected to the slide via the screw. The middle portion of the base is hollow for installing the base ring platform. The screw passes through the base and the base ring platform in sequence from bottom to top and is connected to the nut. A notch is provided on the side of the base. The jaw is L-shaped. The middle portion of the jaw is movably installed in the notch through a pin shaft in a one-to-one correspondence. One end of the jaw is movably connected to the side of the base ring platform, and the other end of the jaw extends outside the notch for clamping the workpiece.

[0006] Preferably, the clamp further comprises a spring, and the spring is installed between the base and the base ring platform.

[0007] Preferably, the number of the clamping jaws is three.

[0008] Preferably, a filtering device is further included, and the filtering device is connected to the sealing cover through a pipeline.

[0009] Preferably, the sealing cover comprises a cover body and a front door cover, the cover body is welded to the table top of the frame, the front door cover is movably connected to the upper end of the cover body through a hinge, and the front door cover is made of transparent PC material.

[0010] Preferably, a nozzle is also provided in the sealing cover.

[0011] Preferably, a pulley is provided at the bottom of the frame.

[0012] The utility model is beneficial in that: the closed automatic processing operation does not require manual labor for the entire operation, thus reducing the labor intensity, and realizing automated standard operation, thereby effectively improving the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of a mechanical seal polishing device according to one embodiment;

[0014] Figure 2 It is a schematic diagram of an explosion of a mechanical seal grinding device;

[0015] Figure 3 A schematic diagram of the fixture structure. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0019] like Figures 1 to 3 As shown, a mechanical seal grinding device includes a frame 1 and a sealing cover 2, the sealing cover 2 is installed on the table of the frame 1, the screw assembly 3 and the grinding assembly 4 are installed in the sealing cover 2, the guide rail 31 of the screw assembly 3 is arranged along the length direction of the frame 1, the slide 32 is installed on the guide rail 31, and the slide 32 is installed with a clamp 5 for clamping a workpiece 100, the screw assembly 3 drives the clamp 5 to perform reciprocating linear motion along the guide rail 31, the grinding assembly 4 includes a mounting frame 41, a lifting electric pusher 42, a motor 43 and a grinding head 44, the mounting frame 41 is vertically installed on the table of the frame 1, the lifting electric pusher 42 is vertically fixed on the mounting frame 41, and its output end is connected to the motor 43, and the output end of the motor 43 is arranged downward and connected to the grinding head 44. Specifically, in this embodiment, the processing is carried out in a closed sealing cover 2, which is a closed environment to prevent dust generated by the processing from overflowing and ensure the working environment in the workshop. The screw assembly 3 is used to drive the clamp 5 to move, so as to facilitate the removal of the workpiece 100 on the clamp 5. The workpiece 100 is a sealing ring in a circular ring shape. In order to avoid slipping when processing its end face, the clamp 5 is used for clamping. When the screw assembly 3 drives the workpiece 100 to move below the grinding assembly 4, the grinding assembly 4 includes a mounting frame 41, a lifting electric pusher 42, a motor 43 and a grinding head 44. The lifting electric pusher 42 drives the motor 43 to move downward, so that the grinding head 44 fits the end face of the workpiece 100. The motor 43 is started and drives the grinding head 44 to rotate, so that the end face of the workpiece 100 can be polished flat, and the operation is complete. The entire operation does not require manual labor, which reduces the labor intensity, and realizes automated standard operations, thereby improving the processing accuracy of the workpiece.

[0020] like Figure 3As shown, the clamp 5 includes a base 51, a plurality of clamping jaws 52, a base ring platform 53, a screw 54 and a nut 55. The base 51 is connected to the slide 32 through the screw. The middle part of the base 51 is hollow for installing the base ring platform 53. The screw 54 passes through the base 51 and the base ring platform 53 from bottom to top and is connected to the nut 55. A notch is provided on the side of the base 51. The clamping jaw 52 is L-shaped. The middle part of the clamping jaw 52 is movably installed in the notch through a pin shaft in a one-to-one correspondence. One end of the clamping jaw 52 is movably connected to the side of the base ring platform 53, and the other end of the clamping jaw 52 extends out of the notch for clamping the workpiece. Specifically, in the present embodiment, the screw 54 is threadedly connected to the base ring stage 53. By rotating the screw 54, the base ring stage 53 can be driven to move up and down. When the base ring stage 53 moves up, the clamp 52 can be driven to flip outward to release the workpiece 100. When the base ring stage 53 moves down, the clamp 52 can be driven to flip inward to clamp the workpiece 100, thereby adapting to workpieces 100 of different diameters. In the present embodiment, the number of the clamps 52 is three.

[0021] like Figure 3 As shown, the clamp 5 also includes a spring 56, which is installed between the base 51 and the base ring stage 53. Specifically, the spring 56 serves as a buffer component, and the spring 56 provides an upward elastic force to the base ring stage 53, so that the base ring stage 53 can drive the clamping jaw 52 to move up and down, clamping or releasing the workpiece 100.

[0022] like Figures 1-2 As shown, a filter device 6 is also included, and the filter device 6 is connected to the sealing cover 2 through a pipe 61. Specifically, the filter device 6 is integrated with an exhaust fan, and the exhaust fan works to extract the smoke and dust generated by the processing in the sealing cover 2 through the pipe 61, and performs air filtering to ensure that the working environment inside the workshop meets the standards.

[0023] like Figures 1-2 As shown, the sealing cover 2 includes a cover body 21 and a front door cover 22. The cover body 21 is welded on the table of the frame 1. The front door cover 22 is movably connected to the upper end of the cover body 21 through a hinge. The front door cover 22 is made of transparent PC material. Specifically, a handle is also provided on the front door cover 22 for easy opening and closing. The front and rear covers 22 are transparent, which is convenient for operators to observe the real-time processing status inside. If there is an abnormality, the machine can be manually stopped for processing.

[0024] like Figure 2 As shown, a nozzle 7 is also provided in the sealing cover 2, and metalworking fluid is sprayed during grinding, which mainly plays a role of lubrication and cooling, and also has functions such as rust prevention and cleaning. The metalworking fluid can effectively reduce the friction between the metal and the tool, reduce the heat generation, and thus protect the tool and the workpiece from excessive wear or heat damage.

[0025] like Figures 1-2 As shown, a pulley 11 is provided at the bottom of the frame 1, which is convenient for free movement in the workshop and easy to store and use.

[0026] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A mechanical seal polishing device, characterized in that: It includes a frame and a sealing cover, which is installed on the table of the frame, and the screw assembly and the grinding assembly are installed in the sealing cover. The guide rail of the screw assembly is arranged along the length direction of the frame, and the slide is installed on the guide rail. A clamp for clamping the workpiece is installed on the slide, and the screw assembly drives the clamp to perform reciprocating linear motion along the guide rail. The grinding assembly includes a mounting frame, a lifting electric pusher, a motor and a grinding head. The mounting frame is vertically installed on the table of the frame, and the lifting electric pusher is vertically fixed on the mounting frame, and its output end is connected to the motor. The output end of the motor is arranged downward and connected to the grinding head.

2. A mechanical seal polishing device as claimed in claim 1, characterized in that: The clamp includes a base, a plurality of clamping jaws, a base ring stage, a screw and a nut. The base is connected to the slide table through the screw. The middle part of the base is hollow and is used to install the base ring stage. The screw passes through the base and the base ring stage from bottom to top and is connected to the nut. A notch is provided on the side of the base. The clamping jaw is L-shaped. The middle part of the clamping jaw is movably installed in the notch through a pin shaft in a one-to-one correspondence. One end of the clamping jaw is movably connected to the side of the base ring stage, and the other end of the clamping jaw extends out of the notch and is used to clamp the workpiece.

3. A mechanical seal polishing device as claimed in claim 2, characterized in that: The clamp also includes a spring, which is installed between the base and the base ring platform.

4. A mechanical seal polishing device as claimed in claim 2, characterized in that: The number of the clamping jaws is three.

5. A mechanical seal polishing device as claimed in claim 1, characterized in that: A filtering device is also included, and the filtering device is connected with the sealing cover through a pipeline.

6. A mechanical seal polishing device as claimed in claim 1, characterized in that: The sealing cover comprises a cover body and a front door cover, the cover body is welded on the table surface of the frame, the front door cover is movably connected to the upper end of the cover body through a hinge, and the front door cover is made of transparent PC material.

7. A mechanical seal polishing device as claimed in claim 1, characterized in that: A nozzle is also arranged in the sealing cover.

8. A mechanical seal polishing device as claimed in claim 1, characterized in that: A pulley is arranged at the bottom of the frame.

Images