CN111716209A - Polished Components - Google Patents

Abstract

The present invention relates to a polishing assembly. A polishing assembly comprises a fixed frame, wherein a driving motor and a telescopic mechanism are fixed on the fixed frame, a driving wheel is fixed at the output end of the driving motor, the driving wheel is linked with a driven wheel, a polishing abrasive belt in a surrounding shape is sleeved outside the driving wheel and the driven wheel, the telescopic mechanism comprises a fixed part, a movable part and a rotating part, one end of the movable part is located in the fixed part, the other end of the movable part extends out of the fixed part and is linked and fixed with the movable frame, the driven wheel is rotatably fixed on the movable frame, the rotating part can rotate and is connected and fixed with the movable part or the fixed part, the rotating axis of the rotating part is arranged along the telescopic direction of the movable part, the movable frame drives the driven wheel to move under the action of the telescopic mechanism, and the polishing abrasive belt is tightly fixed outside the driving. The invention has the advantages of improving the polishing effect and the polishing efficiency.

Description

Polished Components

technical field

The invention relates to a component processing equipment, in particular to a polishing component.

Background technique

The general polishing component includes a motor and a grinding wheel. The surface of the workpiece is ground and polished by the rotating grinding wheel. Usually, the workpiece is first fixed on the rotating mechanism, and then the polishing component is moved to make the grinding wheel contact the surface of the workpiece, and then the workpiece is polished. Rotate and start the motor for sanding and polishing operations. However, the polishing efficiency of the grinding wheel is low. For this reason, some polishing components are a combination of a motor and a polishing abrasive belt.

In order to ensure the effective contact between the polishing abrasive belt and the surface of the workpiece, the polishing abrasive belt at the driven wheel will be in contact with the surface of the workpiece instead of the polishing abrasive belt located between the driving wheel and the driven wheel. In order to avoid the contact between the driven wheel and the polishing abrasive belt, an annular groove cannot be set on the axial surface of the driven wheel to limit the movement of the polishing abrasive belt along the axial direction of the driven wheel. The outer diameter of the existing driven wheel is the same everywhere, and the polishing abrasive belt is easy to follow. The driven wheel moves axially.

Some workpieces have protrusions on the surface, and the side of the protrusions is a slope inclined relative to the workpiece surface. Whether it is a grinding wheel or a polishing belt, the polishing effect of the raised slope of the workpiece is poor, and a longer polishing operation is required. , in order to make the polishing effect at the inclined plane reach the specified standard, but it will also cause the workpiece to deviate from the surface polishing of the inclined plane.

Some workpieces are welded and fixed together by multiple parts, and the welding part of the two parts needs to be ground and polished, but the welding part is uneven, and the contact surface between the polishing abrasive belt and the welding part is small, and it needs to be polished for a long time. , to smooth the weld, and then polish it.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a polishing assembly which can avoid deviation of polishing abrasive belt and improve polishing efficiency.

In order to achieve the above purpose, the present invention adopts the following technical scheme: a polishing assembly, comprising a fixing frame, a driving motor and a telescopic mechanism are fixed on the fixing frame, a driving wheel is fixed at the output end of the driving motor, and the driving wheel is The driven wheel is linked, the driving wheel and the outer casing of the driven wheel are provided with an enclosed polishing abrasive belt, the telescopic mechanism includes a fixed part, a movable part and a rotating part, one end of the movable part is located in the fixed part, and the movable part The other end extends out of the fixed part and is linked and fixed with the movable frame. The driven wheel can be rotatably fixed on the movable frame; The telescopic direction of the movable part is arranged, and the movable frame drives the driven wheel to move under the action of the telescopic mechanism, and the polishing abrasive belt is expanded and fixed on the outside of the driving wheel and the driven wheel.

In the present invention, a telescopic mechanism is provided, so that the polishing abrasive belt can be stretched, and the tensioning force of the polishing abrasive belt can be adjusted, so as to prevent the polishing abrasive belt from detaching from the driven wheel, so as to ensure the polishing effect. And due to the setting of the rotation part, the driven wheel can rotate with the unevenness of the workpiece surface, so that the driven wheel can automatically adjust the angle, so that the contact area between the polishing abrasive belt at the driven wheel and the welding place is larger, so as to shorten the grinding time. , to improve polishing efficiency. Among them, due to the arrangement of the rotation part, the present invention can perform better polishing for workpieces with inclined surfaces, and there is no need to worry about excessive polishing.

Preferably, the telescopic mechanism is an air cylinder, and one end of the movable part located in the fixed part is connected and fixed to the rotation part. The telescopic mechanism adopts a cylinder, which can avoid excessive contact between the polishing abrasive belt and the workpiece; among them, the elastic force formed by the gas inside the cylinder is constant, and will not change due to the shrinkage of the telescopic part of the cylinder, which can make the polishing process more stable and polishing. Better results. The air pressure can be adjusted through the precise pressure regulating valve of the cylinder to control the size of the elastic force formed by the cylinder. The cylinder stroke can be adjusted through the middle-sealed three-position five-way valve to realize the adjustment of the travel of the movable frame and the driven wheel, so as to realize the adjustment of the tightening force of the polishing abrasive belt. The telescopic mechanism can be a standard double-acting cylinder.

Preferably, the rotating part and the movable part are arranged coaxially, the rotating part can be rotatably fixed to the end of the movable part outside the fixed part and fixed to the movable frame, and the end of the movable part outside the fixed part is away from the rotating part A rotating structure that cooperates with one end of the movable frame, the rotating structure includes an annular groove and an annular protrusion located in the annular groove. The arrangement of the rotating structure can limit the circumferential movement of the rotating part relative to the fixed part, and can ensure the polishing effect.

Preferably, a fixed block is fixed at one end of the movable part outside the fixed part, the rotating structure is arranged between the circumferential side wall of the fixed block and the circumferential side wall of the rotating part, and a plane bearing is fixed in the fixed block , the plane bearing is in contact with the rotating part, and the plane bearing is located between the movable part and the rotating part. The installation of the fixed block makes the assembly of the telescopic mechanism more convenient, wherein the fixed block can be connected and fixed with the movable part by riveting or other methods. And the arrangement of the plane bearing can reduce the friction force when the rotating part rotates, so as to ensure the reporting effect.

Preferably, the fixing block is provided with a through hole through which the rotation part passes, the inner wall of the through hole extends to the outer side in the circumferential direction to form the annular groove, and the plane bearing is located in the through hole, and the rotation part is located in the through hole. The portion inside the through hole is provided with the annular protrusion.

Preferably, the middle part of the surface of the driven wheel and/or the driving wheel for contacting the polishing abrasive belt extends to the outer side in the circumferential direction, so that the cross section of the surface of the driven wheel and/or the driving wheel for contacting the polishing abrasive belt Set in a V-shaped or circular arc. When the polishing abrasive belt is stretched, the left and right movement of the polishing abrasive belt will be restricted due to the outward convexity of the middle of the surface of the driven wheel or the driving wheel, so as to further prevent the polishing abrasive belt from detaching from the driven wheel.

The invention has the advantages that the polishing effect can be improved and the polishing efficiency can be improved.

Description of drawings

Fig. 1 is a kind of structural representation of the present invention;

Fig. 2 is a kind of sectional view of the driven wheel of the present invention;

Fig. 3 is another telescopic mechanism of the present invention;

FIG. 4 is an enlarged view of the rotating structure in FIG. 3 .

Detailed ways

The present invention will be further described below according to the accompanying drawings and specific embodiments.

Example 1

As shown in FIG. 1 and FIG. 2 , a polishing assembly of the present invention includes a fixing frame. The fixing frame is composed of a fixing frame body 1 and a downwardly extending connecting frame 2. A driving motor 3 is fixed on the fixing frame body 1 and is connected to the fixing frame. A telescopic mechanism 4 is fixed at the lower end of the frame 2, and a driving wheel 31 is fixed at the output end of the driving motor 3. The driving wheel 31 is linked with the driven wheel 32. The mechanism 4 includes a fixed part 41 , a movable part 42 and a rotating part. One end of the movable part 42 is located in the fixed part 41 , and the other end of the movable part 42 extends out of the fixed part 41 and is linked and fixed with the movable frame 5 , and the movable frame 5 has an n-shaped structure. , the driven wheel 32 can be rotatably fixed on the movable frame 5, the rotating part can rotate relative to the fixed part 41 and be connected and fixed with the movable part 42, the rotation axis of the rotating part is arranged along the telescopic direction of the movable part 42, and the movable frame 5 It drives the driven wheel 32 to move in a straight line, and makes the polishing abrasive belt 33 expand and fasten to the outside of the driving wheel 31 and the driven wheel 32 .

The middle portion of the surface of the driven wheel 32 for contacting the polishing abrasive belt 33 extends to the outside in the circumferential direction, so that the cross section of the surface of the driven wheel 32 for contacting the polishing abrasive belt 33 is arranged in a V shape. The telescopic mechanism 4 in this embodiment is an air cylinder. One end of the movable part 42 located in the fixed part is connected and fixed to the rotation part, and the movable part of the cylinder can rotate relative to the fixed part.

Example 2

As shown in FIG. 3 and FIG. 4 , the difference between this embodiment and Embodiment 1 is that the telescopic mechanism is different. The telescopic mechanism in this embodiment can use an electric push rod.

The rotating part 43 is coaxially arranged with the movable part 42 (the jacking pipe of the electric push rod), and the rotating part 43 is rotatably fixed to the end of the moving part 42 outside the fixed part 41 (the jacking pipe of the electric push rod) and fixed to the movable frame 5 , a rotating structure in which the end of the movable part 42 outside the fixed part 41 and the end of the rotating part 43 away from the movable frame 5 cooperate with each other.

One end of the movable part 42 outside the fixed part 41 is fixed with a fixed block 6 , the rotating structure is provided between the circumferential side wall of the fixed block 6 and the circumferential side wall of the rotation part 43 , and a plane bearing 63 is fixed in the fixed block 6 . The bearing 63 is in contact with the rotation part 43 , and the plane bearing 63 is located between the movable part 42 and the rotation part 43 . The fixed block 6 is provided with a through hole through which the rotation part 43 passes, the inner wall of the through hole extends to the outer circumferential direction to form the annular groove 61, and the plane bearing 63 is located in the through hole, and the rotation part 43 is located in the through hole. Parts are provided with the annular protrusion 62 .

The invention can be used for polishing the welding place between the head and the cylinder of the pressure vessel. The connecting frame is extended into the pressure vessel, so that the polishing abrasive belt at the driven wheel is in contact with the place to be polished and polished on the inner wall of the pressure vessel, and then the drive motor is started. , and make the pressure vessel rotate under the action of other equipment. Due to the setting of the telescopic mechanism, the polishing abrasive belt is always in contact with the inner wall of the pressure vessel, and the driven wheel will follow the rotation of the pressure vessel. Adjustment to make the contact surface between the polishing abrasive belt and the place to be polished and polished is larger, the polishing effect is better, and the efficiency is higher.

The invention has the advantages that the polishing effect can be improved and the polishing efficiency can be improved.

Claims (6)

1. A polishing assembly is characterized by comprising a fixed frame, wherein a driving motor and a telescopic mechanism are fixed on the fixed frame, a driving wheel is fixed at the output end of the driving motor, the driving wheel is linked with a driven wheel, a polishing abrasive belt in a surrounding shape is sleeved outside the driving wheel and the driven wheel, the telescopic mechanism comprises a fixed portion, a movable portion and a rotating portion, one end of the movable portion is located in the fixed portion, the other end of the movable portion extends out of the fixed portion and is linked and fixed with the movable frame, the driven wheel is rotatably fixed on the movable frame, the rotating portion can rotate and is connected and fixed with the movable portion or the fixed portion, the rotating axis of the rotating portion is arranged along the telescopic direction of the movable portion, the movable frame drives the driven wheel to move under the action of the telescopic mechanism, and the polishing abrasive belt is tightly fixed outside the driving.

2. The polishing assembly of claim 1, wherein the retractable mechanism is a cylinder, and the movable portion is connected to the rotation portion at an end thereof located in the fixed portion.

3. The polishing assembly of claim 1, wherein the rotation portion is coaxially disposed with the movable portion, the rotation portion is rotatably fixed to an end of the movable portion outside the fixed portion and fixed to the movable frame, the end of the movable portion outside the fixed portion and an end of the rotation portion away from the movable frame are configured to cooperate with each other, and the rotation structure includes an annular groove and an annular protrusion inside the annular groove.

4. The polishing assembly as recited in claim 1, wherein a fixed block is fixed to an end of the movable portion outside the fixed portion, the rotational structure is disposed between a circumferential sidewall of the fixed block and a circumferential sidewall of the rotation portion, a flat bearing is fixed to the fixed block, the flat bearing contacts the rotation portion, and the flat bearing is disposed between the movable portion and the rotation portion.

5. The polishing assembly as set forth in claim 4, wherein the fixing block is provided with a through hole through which the rotation part passes, an inner wall of the through hole extending to a circumferential outer side to form the annular groove, and the flat bearing is located in the through hole, and a portion of the rotation part located in the through hole is provided with the annular protrusion.

6. A polishing assembly according to claim 1, characterized in that the driven wheel and/or the driving wheel has/have a surface for contact with the polishing belt extending centrally to the circumferential outside, so that the surface for contact with the polishing belt is provided with a V-shaped or circular-arc-shaped cross-section.

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