Polishing device with adjustable polishing force for round metal frame machining

Abstract

The utility model discloses a polishing device with adjustable polishing force for round metal frame machining, and relates to the technical field of polishing devices. The device comprises a workbench, the top of the workbench is rotatably connected with a circular truncated cone, the outer surface of the circular truncated cone is provided with a through groove, the interior of the through groove is movably connected with a moving frame, one end of the moving frame is fixedly connected with a placing plate, the top of the placing plate is provided with an arc-shaped placing groove, and the inner wall of the arc-shaped placing groove is provided with an anti-skid groove. And a driving assembly is arranged in the circular truncated cone. According to the utility model, the outer surface of the moving frame is always located in the through groove, so that metal powder generated when the rotor is polished does not easily fall into the circular truncated cone through the through groove and does not affect the screw rod, and therefore, the rotor can be fixed normally all the time; and by arranging an arc-shaped placing groove and an anti-skid groove, the stability of the rotor after the rotor is fixed can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of polishing devices. Specifically, it particularly relates to a polishing device with adjustable grinding force for processing circular metal frames. Background Technique

[0002] When processing some circular metal frames, in order to improve the surface quality, make the surface smoother and brighter, and reduce the roughness, it is necessary to polish the frames through a polishing device. Among them, the rotor in the bearing is also a kind of circular metal frame.

[0003] In the Chinese Patent Network CN220561216U, a polishing device for processing a rotary metal rotor sleeve is disclosed, which includes a cross plate. A rotating component is installed on the top of the cross plate. The rotating component includes a rotating rod. The top of the rotating rod is connected to a circular shell by bolts. A fixing component is installed in the inner cavity of the circular shell. The right side of the top of the cross plate is connected to a mounting frame by bolts.

[0004] When polishing the rotor, the rotor needs to be directly placed on the top of the circular outer shell, and then the two-way threaded rod is rotated through a turntable. At this time, the two-way threaded rod drives the moving rod to move and complete the fixation of the rotor. Since the two-way threaded rod is arranged inside the circular outer shell, a chute needs to be opened on the top of the circular outer shell for the moving rod to move. This setting makes it easy for the metal powder ground during the polishing of the rotor to fall into the inside of the circular outer shell through the chute, and the metal powder accumulated inside the circular outer shell is not easy to clean. Seriously, the metal powder inside the circular outer shell is also easy to adhere to the outer surface of the two-way threaded rod, so that the two-way threaded rod cannot normally drive the moving rod, so that the rotor to be polished cannot be fixed. At the same time, the contact area between the moving rod and the inner wall of the rotor is limited, so that the stability during the fixation of the rotor is relatively low.

[0005] In view of the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0006] In view of the problems in the related technology, the utility model proposes a polishing device with adjustable grinding force for processing circular metal frames to overcome the above technical problems existing in the existing related technology.

[0007] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0008] The utility model relates to a polishing device with adjustable polishing force for processing circular metal frames, which comprises a workbench. A round table is rotatably connected to the top of the workbench. A through groove is formed on the outer surface of the round table. A movable frame is movably connected inside the through groove. One end of the movable frame is fixedly connected with a placing plate. An arc-shaped placing groove is formed on the top of the placing plate. Anti-slip grooves are formed on the inner wall of the arc-shaped placing groove. A driving component is arranged inside the round table. The driving end of the driving component is in threaded connection with the movable frame. A pushing component is arranged on the top of the workbench. The output end of the pushing component is fixedly connected with an L-shaped movable plate. An adjusting component is arranged inside the L-shaped movable plate. The fixed end of the adjusting component is movably connected with a polishing component.

[0009] Further, a first motor is fixedly installed at the bottom of the workbench. The output end of the first motor penetrates through the workbench and is fixedly connected with the round table. A ball is rotatably connected to the bottom of the round table.

[0010] Further, the driving component comprises a screw rod. One end of the screw rod is rotatably connected with the round table. The other end of the screw rod is fixedly connected with a bevel gear. There are multiple screw rods and bevel gears. The multiple bevel gears are meshed with each other. A support plate is fixedly connected to the inner wall of the round table. The support plate is rotatably connected with the screw rod. One end of the screw rod penetrates through the round table and is fixedly connected with a control ring.

[0011] Further, the pushing component comprises a mounting plate. The mounting plate is fixedly connected to the top of the workbench. An electric push rod is fixedly installed on one side of the mounting plate. The output end of the electric push rod penetrates through the mounting plate and is fixedly connected with the L-shaped movable plate. A first limiting column is fixedly connected to the back of the L-shaped movable plate. The first limiting column is movably connected with the mounting plate.

[0012] Further, the adjusting component comprises a second limiting column. The second limiting column is fixedly connected to the inner wall of the L-shaped movable plate. A pressing plate is movably connected to the outer surface of the second limiting column. A spring is fixedly connected to the front of the pressing plate. One end of the spring is fixedly connected with a connecting block. The connecting block is movably connected with the second limiting column. The polishing component is fixedly connected with the connecting block.

[0013] Further, the adjusting component further comprises a pressure sensor. The pressure sensor is fixedly installed on the inner wall of the L-shaped movable plate. The pressing plate is arranged in front of the pressure sensor. A display screen is fixedly installed on the top of the L-shaped movable plate. The pressure sensor is electrically connected with the display screen.

[0014] Furthermore, the polishing component includes a mounting frame which is fixedly connected to the connecting block. A second motor is fixedly installed inside the mounting frame. The output end of the second motor penetrates through the mounting frame and is fixedly connected to a mounting cylinder, and a grinding roller is fixedly installed inside the mounting cylinder.

[0015] The utility model has the following beneficial effects:

[0016] 1. By rotating the control ring in the utility model, the control ring drives the corresponding screw rod and bevel gear to rotate. The bevel gear then drives other bevel gears meshed with it to rotate together, so that all the screw rods arranged inside the frustum rotate together. At the same time, the moving frame threadedly connected with the screw rod moves inside the through groove and directly drives the placing plate to a proper position. Then, the rotor is placed inside the arc-shaped placing grooves on the tops of multiple placing plates. Continuing to move the moving frame and the placing plate through the driving component, and making the arc-shaped placing grooves closely contact with the inner wall of the rotor. To sum up, the outer surface of the moving frame is always inside the through groove. This setting makes it not easy for the metal powder generated during the grinding of the rotor to fall into the inside of the frustum through the through groove, and it is also not easy for the outer surface of the screw rod to adhere to the metal powder. Thus, the screw rod can normally drive the moving frame, and the placing plate will not be affected when fixing the rotor through the arc-shaped placing grooves. Since the inner wall of the arc-shaped placing groove can closely contact with the inner wall of the rotor and the contact area is large, plus the setting of the anti-slip grooves, the stability of the multiple placing plates fixing the rotor through the arc-shaped placing grooves can be guaranteed. The above settings cooperate with each other to improve the overall effect when fixing the rotor.

[0017] 2. When the present utility model grinds the fixed rotor outer frame, the electric push rod is started, and the electric push rod drives the L-shaped moving plate to move. The L-shaped moving plate drives the adjusting component and the polishing component to move together. After the grinding roller contacts the outer side of the rotor, the electric push rod continues to push the L-shaped moving plate. Since the grinding roller cannot move at this time, the connecting block starts to move backward on the second limit post and presses the spring. The spring then pushes the pressing plate backward and makes the pressing plate press the pressure sensor. As the L-shaped moving plate moves continuously, the pressing force of the pressing plate on the pressure sensor also increases continuously. At this time, the display screen can digitize and display the pressing force generated by the pressing plate on the pressure sensor. Since the action of force is mutual, the value displayed on the display screen also represents the pressing force of the grinding roller on the rotor. To sum up, when moving the grinding roller to the outer side of the rotor, the operator can adjust the grinding force of the grinding roller on the rotor by continuously moving the L-shaped moving plate. At the same time, the value of the grinding force can be displayed on the display screen, so that the operator can better adjust the grinding force. The above settings improve the effect of grinding the rotor.

[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the external contour structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the bottom view structure of the workbench of the present utility model;

[0022] Figure 3 It is a schematic diagram of the sectional view of the frustum of the present utility model;

[0023] Figure 4 It is a schematic diagram of the bottom view of the frustum of the present utility model;

[0024] Figure 5 It is a schematic diagram of the pushing component structure of the present utility model;

[0025] Figure 6 It is a schematic diagram of the adjusting component structure of the present utility model.

[0026] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Workbench; 2. Round table; 3. Through groove; 4. Moving frame; 5. Placing plate; 6. Arc-shaped placing groove; 7. Anti-slip groove; 8. Driving component; 801. Screw rod; 802. Bevel gear; 803. Support plate; 804. Control ring; 9. Pushing component; 901. Mounting plate; 902. Electric push rod; 903. First limit post; 10. L-shaped moving plate; 11. Adjusting component; 111. Second limit post; 112. Pressing plate; 113. Spring; 114. Connecting block; 115. Pressure sensor; 116. Display screen; 12. Polishing component; 121. Mounting frame; 122. Second motor; 123. Mounting cylinder; 124. Grinding roller; 13. First motor; 14. Ball. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "open hole", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the utility model.

[0030] Please refer to Figures 1 - 6 As shown in the figure, the present utility model is a polishing device with adjustable grinding force for processing circular metal frames, including a workbench 1. The top of the workbench 1 is rotatably connected with a round table 2. The outer surface of the round table 2 is provided with a through groove 3. The inside of the through groove 3 is movably connected with a moving frame 4. One end of the moving frame 4 is fixedly connected with a placing plate 5. The top of the placing plate 5 is provided with an arc-shaped placing groove 6. The inner wall of the arc-shaped placing groove 6 is provided with an anti-slip groove 7. The inside of the round table 2 is provided with a driving component 8. The driving end of the driving component 8 is threadedly connected with the moving frame 4. The top of the workbench 1 is provided with a pushing component 9. The output end of the pushing component 9 is fixedly connected with an L-shaped moving plate 10. The inside of the L-shaped moving plate 10 is provided with an adjusting component 11. The fixed end of the adjusting component 11 is movably connected with a polishing component 12.

[0031] When polishing the rotor, the drive assembly 8 is rotated, so that the drive assembly 8 drives a plurality of moving frames 4 to move. The plurality of moving frames 4 move inside the through groove 3 and drive the corresponding placement plates 5 to move on the top of the conical platform 2. When the placement plate 5 moves to a suitable position, the rotor is placed inside the arc-shaped placement grooves 6 on the plurality of placement plates 5. At this time, the drive assembly 8 is continuously rotated so that the inner walls of the plurality of arc-shaped placement grooves 6 are in contact with the inner wall of the rotor and the device is fixed on one side. Then, the pushing assembly 9 is started, so that the pushing assembly 9 drives the L-shaped moving plate 10 to move. The L-shaped moving plate 10 drives the polishing assembly 12 to move through the adjusting assembly 11 and makes the polishing end of the polishing assembly 12 contact with the outer side of the rotor. At this time, the conical platform 2 and the polishing end of the polishing assembly 12 rotate and start to polish the outer side of the rotor.

[0032] The whole of the moving frame 4 can block the through groove 3, so that the metal powder generated during the polishing of the rotor is not easily dropped into the conical platform 2 through the through groove 3. This setting makes the metal powder not affect the drive assembly 8 arranged inside the conical platform 2, so that the drive assembly 8 can always drive the moving frame 4 normally, so that the placement plate 5 on the moving frame 4 is not affected when fixing the rotor. When fixing the rotor, the inner wall of the rotor can be in contact with the inner wall of the arc-shaped placement groove 6. Since the arc-shaped placement groove 6 is arc-shaped, the inner wall of the rotor can be in relatively close contact with the arc-shaped placement groove 6, and the contact area is large. Coupled with the setting of the anti-slip grooves 7, the stability of the plurality of placement plates 5 fixing the rotor through the arc-shaped placement grooves 6 can be guaranteed.

[0033] In one embodiment, for the above-mentioned workbench 1, a first motor 13 is fixedly installed at the bottom of the workbench 1. The output end of the first motor 13 penetrates the workbench 1 and is fixedly connected to the conical platform 2. A ball 14 is rotatably connected to the bottom of the conical platform 2.

[0034] When polishing the rotor, the first motor 13 is started. The first motor 13 drives the conical platform 2 to rotate. The conical platform 2 drives the fixed rotor to rotate. At the same time, when the conical platform 2 rotates, the ball 14 at the bottom of the conical platform 2 rotates on the top of the workbench 1. The setting of the ball 14 makes the rotation of the first motor 13 driving the conical platform 2 relatively smooth, so that the mechanical fatigue strength of the output end of the first motor 13 is reduced.

[0035] In one embodiment, for the above-mentioned driving component 8, the driving component 8 includes a screw rod 801. One end of the screw rod 801 is rotatably connected to the frustum 2, and the other end of the screw rod 801 is fixedly connected to a bevel gear 802. There are multiple screw rods 801 and bevel gears 802. The multiple bevel gears 802 are meshed with each other. A support plate 803 is fixedly connected to the inner wall of the frustum 2. The support plate 803 is rotatably connected to the screw rod 801. One end of the screw rod 801 penetrates through the frustum 2 and is fixedly connected to a control ring 804.

[0036] By rotating the control ring 804, the control ring 804 can drive the corresponding screw rod 801 to rotate. At the same time, the bevel gear 802 at one end of the screw rod 801 drives the other bevel gears 802 meshed with it to rotate, so that all the screw rods 801 inside the frustum 2 rotate together. The moving frame 4 meshed with the screw rod 801 also moves under the drive of the screw rod 801, so that the placing plate 5 on the moving frame 4 completes the fixation of the rotor. In summary, the setting of multiple screw rods 801 and bevel gears 802 enables the operator to only rotate one screw rod 801 to make all the screw rods 801 rotate together, so that the rotor fixed by the placing plate 5 can be coaxial with the frustum 2. This setting enables the polishing component 12 to better polish and grind the rotor when the frustum 2 drives the fixed rotor to rotate. The support plate 803 can limit the bevel gear 802 through the screw rod 801, so that the multiple meshed bevel gears 802 are not easily separated.

[0037] In one embodiment, for the above-mentioned pushing component 9, the pushing component 9 includes a mounting plate 901. The mounting plate 901 is fixedly connected to the top of the workbench 1. An electric push rod 902 is fixedly installed on one side of the mounting plate 901. The output end of the electric push rod 902 penetrates through the mounting plate 901 and is fixedly connected to an L-shaped moving plate 10. A first limit post 903 is fixedly connected to the back of the L-shaped moving plate 10. The first limit post 903 is movably connected to the mounting plate 901.

[0038] By starting the electric push rod 902, the electric push rod 902 can drive the L-shaped moving plate 10 to move. The moving L-shaped moving plate 10 drives the first limit post 903 to slide on the mounting plate 901. As the L-shaped moving plate 10 moves, the polishing component 12 arranged inside the L-shaped moving plate 10 can contact the outer frame of the fixed rotor. In summary, the first limit post 903 can support the L-shaped moving plate 10, so that the stability of the L-shaped moving plate 10 during movement can be ensured.

[0039] In one embodiment, for the above-mentioned adjusting component 11, the adjusting component 11 includes a second limiting post 111. The second limiting post 111 is fixedly connected to the inner wall of the L-shaped moving plate 10. The outer surface of the second limiting post 111 is movably connected with a pressing plate 112. A spring 113 is fixedly connected to the front surface of the pressing plate 112. One end of the spring 113 is fixedly connected with a connecting block 114. The connecting block 114 is movably connected with the second limiting post 111. The polishing component 12 is fixedly connected with the connecting block 114. The adjusting component 11 further includes a pressure sensor 115. The pressure sensor 115 is fixedly installed on the inner wall of the L-shaped moving plate 10. The pressing plate 112 is arranged in front of the pressure sensor 115. A display screen 116 is fixedly installed on the top of the L-shaped moving plate 10. The pressure sensor 115 is electrically connected with the display screen 116.

[0040] After the polishing end of the polishing component 12 on the L-shaped moving plate 10 comes into contact with the fixed rotor, the L-shaped moving plate 10 continues to move. At this time, the connecting block 114 at the top of the polishing component 12 can slide on the outer surface of the second limiting post 111. The sliding connecting block 114 pushes the pressing plate 112 to slide on the outer surface of the second limiting post 111 through the spring 113. When the pressing plate 112 comes into contact with the pressure sensor 115, the L-shaped moving plate 10 still continues to move. At this time, the connecting block 114 can squeeze the spring 113. The elastically deformed spring 113 squeezes the pressure sensor 115 through the pressing plate 112. When the pressure sensor 115 is under pressure, the display screen 116 can display the pressure value received by the pressure sensor 115. This value represents the force when the polishing end on the polishing component 12 polishes the rotor. When the value reaches the appropriate level, stop moving the L-shaped moving plate 10. In summary, the force when polishing the rotor by the polishing component 12 can be adjusted according to the actual situation. At the same time, the polishing force of the polishing component 12 on the rotor can be displayed on the display screen 116, so that the operator can monitor the polishing force in real time.

[0041] In one embodiment, for the above-mentioned polishing component 12, the polishing component 12 includes a mounting frame 121. The mounting frame 121 is fixedly connected with the connecting block 114. A second motor 122 is fixedly installed inside the mounting frame 121. The output end of the second motor 122 penetrates through the mounting frame 121 and is fixedly connected with a mounting cylinder 123. A polishing roller 124 is fixedly installed inside the mounting cylinder 123.

[0042] After the grinding roller 124 comes into contact with the rotor and the grinding force is adjusted to an appropriate value, directly start the second motor 122. The second motor 122 drives the grinding roller 124 to rotate through the mounting cylinder 123 and grind the rotor driven by the frustum 2 to rotate. The setting of the mounting cylinder 123 makes it convenient to replace the grinding roller 124.

[0043] Through the above technical solutions: 1. By rotating the control ring 804, the control ring 804 drives the corresponding screw 801 and bevel gear 802 to rotate. The bevel gear 802 then drives other bevel gears 802 meshed with it to rotate together, so that all the screws 801 arranged inside the frustum 2 rotate together. At the same time, the moving frame 4 threadedly connected to the screw 801 moves inside the through groove 3 and directly drives the placement plate 5 to move to a suitable position. Then, the rotor is placed inside the arc-shaped placement grooves 6 on the tops of multiple placement plates 5. Continuing to move the moving frame 4 and the placement plate 5 through the driving assembly 8, and making the arc-shaped placement grooves 6 closely contact the inner wall of the rotor. To sum up, the outer surface of the moving frame 4 is always inside the through groove 3. This setting makes it difficult for the metal powder generated during the grinding of the rotor to fall into the frustum 2 through the through groove 3, and it is also difficult for the outer surface of the screw 801 to adhere to the metal powder. Thus, the screw 801 can drive the moving frame 4 normally, and the placement plate 5 can fix the rotor through the arc-shaped placement grooves 6 without being affected. Since the inner wall of the arc-shaped placement groove 6 can closely contact the inner wall of the rotor and the contact area is large, together with the setting of the anti-slip grooves 7, the stability of the multiple placement plates 5 fixing the rotor through the arc-shaped placement grooves 6 can be ensured. The above settings cooperate with each other to improve the overall effect of fixing the rotor; 2. When grinding the fixed outer frame of the rotor, start the electric push rod 902. The electric push rod 902 drives the L-shaped moving plate 10 to move. The L-shaped moving plate 10 drives the adjusting assembly 11 and the polishing assembly 12 to move together. After the grinding roller 124 contacts the outside of the rotor, the electric push rod 902 continues to push the L-shaped moving plate 10. Since the grinding roller 124 cannot move at this time, the connecting block 114 starts to move backward on the second limiting post 111 and squeezes the spring 113. The spring 113 then pushes the pressing plate 112 backward and makes the pressing plate 112 press the pressure sensor 115. As the L-shaped moving plate 10 continues to move, the pressing force of the pressing plate 112 on the pressure sensor 115 also increases continuously. At this time, the display screen 116 can digitalize and display the pressing force generated by the pressing plate 112 on the pressure sensor 115. Since the action of force is mutual, the value displayed on the display screen 116 also represents the pressing force of the grinding roller 124 on the rotor. To sum up, when moving the grinding roller 124 to the outside of the rotor, the operator can adjust the grinding force of the grinding roller 124 on the rotor by continuously moving the L-shaped moving plate 10, and the value of the grinding force can be displayed on the display screen 116, so that the operator can better adjust the grinding force. The above settings improve the effect of grinding the rotor.

[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the utility model, so that those skilled in the art can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A polishing device with adjustable grinding force for processing a circular metal frame, comprising a workbench (1), characterized in that: The top of the workbench (1) is rotatably connected to a round table (2), the outer surface of the round table (2) is provided with a through groove (3), the interior of the through groove (3) is movably connected to a moving frame (4), one end of the moving frame (4) is fixedly connected to a placement plate (5), the top of the placement plate (5) is provided with an arc-shaped placement groove (6), the inner wall of the arc-shaped placement groove (6) is provided with an anti-slip groove (7), a driving component (8) is arranged inside the round table (2), the driving end of the driving component (8) is threadedly connected to the moving frame (4), a pushing component (9) is arranged on the top of the workbench (1), the output end of the pushing component (9) is fixedly connected to an L-shaped moving plate (10), an adjusting component (11) is arranged inside the L-shaped moving plate (10), and the fixed end of the adjusting component (11) is movably connected to a polishing component (12).

2. A polishing device with adjustable grinding force for circular metal frame processing according to claim 1, characterized in that: A first motor (13) is fixedly mounted on the bottom of the workbench (1); an output end of the first motor (13) passes through the workbench (1) and is fixedly connected to the round table (2); a ball bearing (14) is rotatably connected to the bottom of the round table (2).

3. The polishing device with adjustable grinding force for circular metal frame processing according to claim 1, characterized in that: The driving assembly (8) comprises a screw (801), one end of which is rotatably connected to the truncated table (2), the other end of which is fixedly connected to a bevel gear (802), a plurality of the screw (801) and the bevel gear (802) are provided, the plurality of bevel gears (802) are meshed with each other, a support plate (803) is fixedly connected to the inner wall of the truncated table (2), the support plate (803) is rotatably connected to the screw (801), and one end of the screw (801) passes through the truncated table (2) and is fixedly connected to a control ring (804).

4. The polishing device with adjustable grinding force for circular metal frame processing according to claim 1, characterized in that: The pushing assembly (9) comprises a mounting plate (901), wherein the mounting plate (901) is fixedly connected to the top of the workbench (1), an electric push rod (902) is fixedly installed on one side of the mounting plate (901), an output end of the electric push rod (902) passes through the mounting plate (901) and is fixedly connected to the L-shaped movable plate (10), a first limiting column (903) is fixedly connected to the back side of the L-shaped movable plate (10), and the first limiting column (903) is movably connected to the mounting plate (901).

5. The polishing device with adjustable grinding force for circular metal frame processing according to claim 4, characterized in that: The adjustment component (11) comprises a second limiting column (111), the second limiting column (111) is fixedly connected to the inner wall of the L-shaped movable plate (10), the outer surface of the second limiting column (111) is movably connected to a pressing plate (112), the front surface of the pressing plate (112) is fixedly connected to a spring (113), one end of the spring (113) is fixedly connected to a connecting block (114), the connecting block (114) is movably connected to the second limiting column (111), and the polishing component (12) is fixedly connected to the connecting block (114).

6. A polishing device with adjustable grinding force for circular metal frame processing according to claim 5, characterized in that: The adjustment component (11) further comprises a pressure sensor (115), wherein the pressure sensor (115) is fixedly mounted on the inner wall of the L-shaped movable plate (10), the pressing plate (112) is arranged on the front side of the pressure sensor (115), a display screen (116) is fixedly mounted on the top of the L-shaped movable plate (10), and the pressure sensor (115) is electrically connected to the display screen (116).

7. A polishing device with adjustable grinding force for circular metal frame processing according to claim 6, characterized in that: The polishing assembly (12) comprises a mounting frame (121), the mounting frame (121) being fixedly connected to the connecting block (114), a second motor (122) being fixedly installed inside the mounting frame (121), an output end of the second motor (122) passing through the mounting frame (121) and being fixedly connected to a mounting tube (123), and a grinding roller (124) being fixedly installed inside the mounting tube (123).

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