A polishing device for metal surface treatment

Abstract

The utility model discloses a polishing device for metal surface treatment relates to grinding technical field. A polishing device for metal surface treatment, including base, support column, sliding support column and two clamping blocks, be provided with adjusting assembly on sliding support column, adjusting assembly bag connecting seat, polishing disc, mounting seat and moving seat, and the telescopic of second hydraulic telescopic rod in adjusting assembly, because its both ends respectively through connecting block, movable pad and connecting seat, moving seat rotary connection, so the telescopic of second hydraulic telescopic rod will drive connecting seat around the connecting point of moving seat rotation, and change the angle of polishing disc to adapt to the polishing demand of different angle, finally start second motor, and the output of second motor drives the high -speed rotation of polishing disc, and the polishing treatment of polishing disc to fixed metal workpiece surface, in this way avoided the polishing disc and cannot flexible adjustment inclination angle easily missing narrow corner place's polishing treatment.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a polishing device for metal surface treatment. Background Technology

[0002] In the metal surface treatment industry, polishing is a key process for improving the performance and aesthetics of metal products. It is widely used in precision instrument manufacturing, automotive parts processing, and decorative hardware production. Through polishing, metal surfaces can not only achieve mirror-like gloss and effectively remove oxide layers, but also precisely optimize surface roughness, directly affecting the corrosion resistance, wear resistance, and appearance quality of products. However, with the increasing demand for complex structures and high-precision surfaces of metal workpieces in modern manufacturing, existing metal polishing equipment is gradually becoming a bottleneck restricting the improvement of processing quality and efficiency when dealing with irregularly shaped workpieces due to the limitations of the polishing disc adjustment capability.

[0003] Most metal polishing devices on the market currently only have simple up-and-down linear displacement adjustment functions. When processing metal workpieces with irregular shapes such as curved surfaces, inclined surfaces, and corners, these polishing discs are difficult to adapt to the surface contours of the workpiece, which easily leads to polishing blind spots or local over-polishing. When chamfering mechanical parts and processing the complex contours of irregularly shaped decorative parts, the polishing discs cannot flexibly adjust their tilt angles, which not only easily leads to the omission of polishing processing in narrow corners, but may also cause surface damage due to uneven local pressure. At the same time, when polishing curved metal pipes, the fixed polishing disc can only contact one side of the pipe surface. Operators need to clamp and rotate the workpiece multiple times to complete circumferential polishing. This process is not only cumbersome, but also prone to scratches or deformation due to repeated clamping, which seriously affects the workpiece yield. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a polishing device for metal surface treatment. This device has a simple up-and-down linear displacement adjustment function, which is difficult to adapt to the surface contour of metal workpieces with irregular shapes such as curved surfaces, inclined surfaces and corners when processing them. This easily leads to polishing blind spots or local over-polishing. When chamfering mechanical parts and processing the complex contours of irregular decorative parts, the polishing disc cannot flexibly adjust the tilt angle, which not only easily misses the polishing treatment of narrow corners, but may also cause surface damage due to uneven local pressure. At the same time, when polishing arc-shaped metal pipes, the fixed polishing disc can only contact one side of the pipe surface. The operator needs to clamp and rotate the workpiece multiple times to complete the circumferential polishing. This process is not only cumbersome, but also prone to scratches or deformation due to repeated clamping, which seriously affects the workpiece yield.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a polishing device for metal surface treatment, comprising a base, a support column, a sliding support column and two clamping blocks, wherein an adjustment component is provided on the sliding support column;

[0006] The adjustment component includes a connecting seat, a polishing disc, a mounting seat, and a movable seat. A threaded rod is rotatably connected to the slot at the lower end of the sliding support column. The upper end of the movable seat has a protrusion that is threaded to the outer wall of the threaded rod. A second motor is fixedly installed inside the groove at the lower end of the mounting seat. A first motor is fixedly connected to the outer wall of one side of the sliding support column. A first fixed block is fixedly connected to the lower surface of the movable seat. A movable block is rotatably connected to the lower outer wall of the first fixed block.

[0007] The movable block is fixedly mounted with a second hydraulic telescopic rod on the outer wall of the end away from the first fixed block. The output end of the second hydraulic telescopic rod is fixedly connected to a connecting block. The connecting seat is fixedly connected with a second fixed block on the outer wall of the side away from the mounting seat. The inner wall of the connecting block away from the second hydraulic telescopic rod is rotatably connected to the outer wall of the second fixed block away from the connecting seat. The upper outer wall of the connecting seat is rotatably connected to the inner surface of the lower surface of the movable seat away from the first fixed block.

[0008] Preferably, the outer walls of the two T-shaped blocks on the mounting base are slidably connected to the corresponding slots of the two T-shaped blocks inside the groove of the connecting base;

[0009] Among them, the outer walls of the two conical blocks on the mounting base of the polishing disc are slidably connected to the two conical grooves opened on the fixed base of the output end of the second motor, and the two T-shaped blocks on the mounting base are installed on the connecting base with bolts.

[0010] Preferably, the two conical blocks on the polishing disc are bolted to the fixed seat on the output end of the second motor, and the outer walls of the T-shaped blocks on both sides of the movable seat are slidably connected to the two T-shaped block grooves opened on the lower surface of the sliding support column.

[0011] The output end of the first motor extends to the groove on the lower surface of the sliding support column and is fixedly connected to one end of the threaded rod.

[0012] Preferably, the support column is fixedly installed on the upper surface of the base, the sliding support column is sleeved on the outer wall of the support column, and a first hydraulic telescopic rod is fixedly connected to the upper surface of the support column;

[0013] The output end of the first hydraulic telescopic rod extends rotatably into the groove on the outer wall of the support column and is fixedly connected to the upper surface of the sliding support column.

[0014] Preferably, the outer walls of the conical blocks on both sides of the sliding support column are slidably connected to the interior of the conical block grooves opened on both sides of the support column;

[0015] The base has two support plates fixedly connected to its upper surface, and cylinders are fixedly installed on the outer walls of both support plates.

[0016] Preferably, the output end of the cylinder slides to the outside of the support plate and is fixedly connected to the outer wall of the corresponding clamping block;

[0017] Among them, the two sliding rods that are slidably connected to the outer walls of the two support plates extend to the outside of the support plates and are fixedly connected to the outer walls of the corresponding clamping blocks.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This metal surface treatment polishing device adjusts the extension and retraction of the second hydraulic telescopic rod in the adjustment assembly. Since its two ends are rotatably connected to the connecting seat and the movable seat through connecting blocks and movable blocks respectively, the extension and retraction of the second hydraulic telescopic rod will drive the connecting seat to rotate around the connection point with the movable seat, thereby changing the angle of the polishing disc to adapt to polishing requirements at different angles. Finally, the second motor is started, and the output end of the second motor drives the polishing disc to rotate at high speed. The polishing disc polishes the surface of the fixed metal workpiece. This avoids the problem of the polishing disc not being able to flexibly adjust the tilt angle and easily missing the polishing treatment of narrow corners, thus effectively improving the practicality and flexibility of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the movable base of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the polishing disc of this utility model;

[0024] Figure 4 This utility model Figure 3 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals: 1. Base; 2. Support plate; 3. Cylinder; 4. Clamping block; 5. Support column; 6. First hydraulic telescopic rod; 7. Sliding support column; 8. First motor; 9. Connecting seat; 10. Polishing disc; 11. Mounting seat; 12. Second hydraulic telescopic rod; 13. Movable block; 14. Threaded rod; 15. Moving seat; 16. First fixed block; 17. Second fixed block; 18. Connecting block; 19. Second motor. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a polishing device for metal surface treatment, including a base 1, a support column 5, a sliding support column 7 and two clamping blocks 4;

[0031] An adjustment component is provided on the sliding support column 7;

[0032] The adjustment assembly includes a connecting seat 9, a polishing disc 10, a mounting seat 11, and a movable seat 15. The outer walls of two T-shaped blocks on the mounting seat 11 are slidably connected to the inner grooves of two T-shaped blocks inside the groove of the connecting seat 9. A threaded rod 14 is rotatably connected to the slot at the lower end of the sliding support column 7. The upper protrusion of the movable seat 15 is threadedly connected to the outer wall of the threaded rod 14. A second motor 19 is fixedly installed inside the groove at the lower end of the mounting seat 11. The outer walls of two conical blocks on the mounting seat of the polishing disc 10 are slidably connected to the inner grooves of two conical slots on the fixed seat at the output end of the second motor 19. Two T-shaped blocks on the mounting seat 11 are bolted to the connecting seat 9. Two conical blocks on the polishing disc 10 are bolted to the fixed seat at the output end of the second motor 19. The outer walls of the T-shaped blocks on both sides of the movable seat 15 are slidably connected to the inner grooves of two T-shaped blocks on the lower surface of the sliding support column 7. A first motor 8 is fixedly connected to one side of the outer wall of the sliding support column 7. The output end of the first motor 8 extends rotatably into the groove on the lower surface of the sliding support column 7 and is fixedly connected to one end of the threaded rod 14. A first fixing block 16 is fixedly connected to the lower surface of the movable seat 15. A movable block 13 is rotatably connected to the lower outer wall of the first fixing block 16. A second hydraulic telescopic rod 12 is fixedly installed on the outer wall of the movable block 13 away from the first fixing block 16. A connecting block 18 is fixedly connected to the output end of the second hydraulic telescopic rod 12. A second fixing block 17 is fixedly connected to the outer wall of the connecting seat 9 away from the mounting seat 11. The inner wall of the connecting block 18 away from the second hydraulic telescopic rod 12 is rotatably connected to the outer wall of the second fixing block 17 away from the connecting seat 9. The upper outer wall of the connecting seat 9 is rotatably connected to the inner wall of the lower surface of the movable seat 15 away from the first fixing block 16.

[0033] The support column 5 is fixedly installed on the upper surface of the base 1. The sliding support column 7 is sleeved on the outer wall of the support column 5. The upper surface of the support column 5 is fixedly connected to a first hydraulic telescopic rod 6. The output end of the first hydraulic telescopic rod 6 extends rotatably into the groove on the outer wall of the support column 5 and is fixedly connected to the upper surface of the sliding support column 7. The outer walls of the conical blocks on both sides of the sliding support column 7 are slidably connected to the grooves on both sides of the support column 5. The upper surface of the base 1 is fixedly connected to two support plates 2. The outer walls of the two support plates 2 are fixedly installed with cylinders 3. The output ends of the cylinders 3 extend slidably to the outside of the support plates 2 and are fixedly connected to the outer walls of the corresponding clamping blocks 4. The ends of the two sliding rods slidably connected to the outer walls of the two support plates 2 near the clamping blocks 4 extend slidably to the outside of the support plates 2 and are fixedly connected to the outer walls of the corresponding clamping blocks 4.

[0034] Furthermore, when using this device, firstly, the metal workpiece is placed between the two clamping blocks 4. Then, the cylinder 3 is activated, and its output end extends, pushing the clamping blocks 4 towards the workpiece. The two clamping blocks 4 clamp the metal workpiece. Simultaneously, the sliding rod, guided by the outer wall of the support plate 2, ensures the smooth movement of the clamping blocks 4, guaranteeing the workpiece is firmly fixed. Next, the first hydraulic telescopic rod 6 is activated, and its output end extends and retracts, causing the sliding support column 7 to slide up and down along the outer wall of the support column 5. Based on the workpiece height and polishing requirements, the vertical position of the sliding support column 7 is adjusted, thereby adjusting the height of the entire adjustment assembly. Then, the first motor 8 is activated, and its output end drives the threaded rod 14 to rotate. Since the upper protrusion of the moving seat 15 is threadedly connected to the threaded rod 14, and the T-blocks on both sides slide within the T-block grooves on the lower surface of the sliding support column 7, the rotation of the threaded rod 14 will cause the moving seat 15 to move horizontally on the lower surface of the sliding support column 7, thereby adjusting the connecting seat 9. The horizontal positioning of the polishing disc 10 and other components ensures that the polishing disc 10 is aligned with the area to be polished. When the polishing angle of the polishing disc 10 needs to be adjusted, the second hydraulic telescopic rod 12 is activated. The second hydraulic telescopic rod 12 extends and retracts. Since its two ends are rotatably connected to the connecting seat 9 and the moving seat 15 through the connecting block 18 and the movable block 13 respectively, the extension and retraction of the second hydraulic telescopic rod 12 will drive the connecting seat 9 to rotate around the connection point with the moving seat 15, thereby changing the angle of the polishing disc 10 to adapt to different polishing angle requirements. Finally, the second motor 19 is activated, and the output end of the second motor 19 drives the polishing disc 10 to rotate at high speed. The polishing disc 10 polishes the surface of the fixed metal workpiece. During the polishing process, the position and angle of the polishing disc 10 can be finely adjusted again through the above operations according to the actual situation to ensure that the surface of the metal workpiece receives a uniform and high-quality polishing effect. Through the coordinated work of each component, efficient and precise polishing of the surface of the metal workpiece is achieved.

[0035] By adjusting the extension and retraction of the second hydraulic telescopic rod 12 in the adjustment assembly, since its two ends are rotatably connected to the connecting seat 9 and the movable seat 15 through the connecting block 18 and the movable block 13 respectively, the extension and retraction of the second hydraulic telescopic rod 12 will drive the connecting seat 9 to rotate around the connection point with the movable seat 15, thereby changing the angle of the polishing disc 10 to adapt to polishing requirements at different angles. Finally, the second motor 19 is started, and the output end of the second motor 19 drives the polishing disc 10 to rotate at high speed. The polishing disc 10 polishes the surface of the fixed metal workpiece. This avoids the polishing disc 10 being unable to flexibly adjust the tilt angle and easily missing the polishing treatment of narrow corners, thereby effectively improving the practicality and flexibility of the equipment.

[0036] Structural Description: Base 1: As the basic support component of the entire polishing device, it provides a stable installation platform for other components. Its surface is used to install structures such as support columns 5 and support plates 2, bearing the weight of the entire device and the metal workpiece to be polished, and ensuring the stability of the device during operation.

[0037] Support plate 2: It is fixedly connected to the upper surface of the base 1. There are two of them. Its main function is to provide an installation position for the cylinder 3, and at the same time, it works with the slide rod to provide guidance and auxiliary support for the movement of the clamping block 4.

[0038] Cylinder 3: It is fixedly installed on the outer wall of the support plate 2. Through the telescopic movement of the output end, it pushes the clamping block 4 to move outside the support plate 2. Its function is to precisely control the position of the clamping block 4, realize the clamping and loosening of the metal workpiece to be polished, ensure that the workpiece remains stable during the polishing process, and prevent the polishing effect from being affected by displacement.

[0039] Clamping block 4: Connected to the output end of cylinder 3. Each clamping block 4 corresponds to one cylinder 3. Its outer wall is provided with an anti-slip structure. Under the action of cylinder 3, it clamps the metal workpiece to be polished, ensuring that the workpiece is firmly fixed.

[0040] Support column 5: It is fixedly installed on the upper surface of the base 1 and serves as the support base for the sliding support column 7. Its outer wall is provided with a conical block groove that mates with the sliding support column 7. At the same time, the upper surface is fixedly connected to the first hydraulic telescopic rod 6, which is used to drive the lifting and lowering movement of the sliding support column 7.

[0041] First hydraulic telescopic rod 6: One end is fixedly connected to the upper surface of the support column 5, and the output end rotates and extends to the groove opened in the outer wall of the support column 5 and is fixedly connected to the upper surface of the sliding support column 7. Through the principle of hydraulic telescopic, the sliding support column 7 is driven to slide up and down along the outer wall of the support column 5 to realize the position adjustment of the adjustment component in the vertical direction.

[0042] Sliding support column 7: It is sleeved on the outer wall of support column 5. The tapered blocks on both sides are slidably connected to the tapered block slots on both sides of support column 5 to ensure that it remains stable during the lifting process. The slot at the lower end is rotatably connected to the threaded rod 14. The first motor 8 is fixedly connected to one side. It is the main mounting carrier of the adjustment component. The position and angle of the adjustment component can be adjusted by its own lifting and the rotation of the internal threaded rod 14.

[0043] First motor 8: Fixedly connected to one side of sliding support column 7, the output end extends rotatably into the groove on the lower surface of sliding support column 7 and is fixedly connected to one end of threaded rod 14. As a power source, it drives threaded rod 14 to rotate, thereby moving moving seat 15 on the lower surface of sliding support column 7, thereby realizing the position adjustment of adjustment component in the horizontal direction.

[0044] Connecting seat 9: It is an important connecting component of the adjustment assembly. Its groove is provided with a T-shaped block groove for sliding connection and bolt fixation with the T-shaped block on the mounting seat 11. The outer wall on the side away from the mounting seat 11 is fixedly connected to the second fixing block 17 for rotatable connection with the connecting block 18 of the second hydraulic telescopic rod 12. The upper outer wall is rotatably connected to the lower surface of the movable seat 15 at the end away from the first fixing block 16, so as to realize the multi-angle adjustment of the adjustment assembly.

[0045] Polishing disc 10: The core execution component of the polishing device. It is slidably connected to the conical groove of the output end fixing seat of the second motor 19 through two conical blocks on it and fixed with bolts. It rotates at high speed under the drive of the second motor 19 to polish the surface of the metal workpiece.

[0046] Mounting base 11: used to mount polishing disc 10 and second motor 19. Two T-shaped blocks on it are slidably connected to the T-shaped block groove inside the groove of connecting base 9 and fixed by bolts to realize the stable installation and detachable adjustment of mounting base 11 on connecting base 9. The second motor 19 is fixedly installed inside the groove at the lower end to provide rotational power for polishing disc 10.

[0047] The second hydraulic telescopic rod 12: one end is rotatably connected to the first fixed block 16 on the lower surface of the movable seat 15 via the movable block 13, and the other end is rotatably connected to the second fixed block 17 of the connecting seat 9 via the connecting block 18. By hydraulic telescopic movement, the angle of the connecting seat 9 is changed, thereby adjusting the polishing angle of the polishing disc 10 to adapt to different polishing needs.

[0048] Movable block 13: Rotatably connected to the lower outer wall of the first fixed block 16, used to connect the first fixed block 16 and the second hydraulic telescopic rod 12, so that the second hydraulic telescopic rod 12 can rotate flexibly during the extension and retraction process, ensuring the smoothness of the angle adjustment of the adjustment component;

[0049] Threaded rod 14: Rotatably connected to the slot at the lower end of the sliding support column 7, one end is fixedly connected to the output end of the first motor 8, and the outer wall is threadedly connected to the upper protrusion of the movable seat 15. Under the drive of the first motor 8, it rotates, causing the movable seat 15 to slide along the T-shaped block groove on the lower surface of the sliding support column 7, thereby realizing the horizontal movement of the adjustment component.

[0050] The movable seat 15 has an upper protrusion that is threadedly connected to the threaded rod 14, and two T-shaped blocks on both sides that are slidably connected to the T-shaped block grooves on the lower surface of the sliding support column 7. It moves horizontally under the drive of the threaded rod 14. The lower surface is fixedly connected to the first fixed block 16, which is used to connect the movable block 13 and the second hydraulic telescopic rod 12. At the same time, it is rotatably connected to the upper outer wall of the connecting seat 9, and cooperates with the second hydraulic telescopic rod 12 to realize the angle adjustment of the adjustment component.

[0051] First fixed block 16: Fixedly connected to the lower surface of movable seat 15, used to rotatably connect to movable block 13, and provide installation connection point for second hydraulic telescopic rod 12. It is an important connecting component in the angle adjustment structure of adjustment assembly.

[0052] The second fixing block 17 is fixedly connected to the outer wall of the connecting seat 9 on the side away from the mounting seat 11. It is used to rotately connect with the connecting block 18 of the second hydraulic telescopic rod 12. By cooperating with the first fixing block 16, the second hydraulic telescopic rod 12, etc., the angle adjustment of the connecting seat 9 and the polishing disc 10 can be realized.

[0053] Connecting block 18: One end is fixedly connected to the output end of the second hydraulic telescopic rod 12, and the inner wall of the other end is rotatably connected to the outer wall of the second fixed block 17. It serves to connect the second hydraulic telescopic rod 12 and the second fixed block 17, ensuring that the connecting seat 9 can be adjusted in angle when the second hydraulic telescopic rod 12 extends or retracts.

[0054] The second motor 19 is fixedly installed inside the groove at the lower end of the mounting base 11. Two conical slots are opened on the fixed base at the output end for sliding connection and bolt fixation with the conical block on the polishing disc 10. As the power source of the polishing disc 10, the output shaft drives the polishing disc 10 to rotate at high speed to achieve the polishing operation on the surface of the metal workpiece.

[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A polishing apparatus for metal surface treatment, comprising a base (1), a support column (5), a sliding support column (7), and two clamping blocks (4), characterized in that: An adjustment component is provided on the sliding support column (7); The adjustment component includes a connecting seat (9), a polishing disc (10), a mounting seat (11), and a movable seat (15). A threaded rod (14) is rotatably connected to the slot at the lower end of the sliding support column (7). The upper end of the movable seat (15) has a protrusion that is threaded to the outer wall of the threaded rod (14). A second motor (19) is fixedly installed inside the groove at the lower end of the mounting seat (11). A first motor (8) is fixedly connected to the outer wall on one side of the sliding support column (7). A first fixed block (16) is fixedly connected to the lower surface of the movable seat (15). A movable block (13) is rotatably connected to the lower outer wall of the first fixed block (16). Among them, the second hydraulic telescopic rod (12) is fixedly installed on the outer wall of the movable block (13) away from the first fixed block (16), and the output end of the second hydraulic telescopic rod (12) is fixedly connected to the connecting block (18). The outer wall of the connecting seat (9) away from the mounting seat (11) is fixedly connected to the second fixed block (17). The inner wall of the connecting block (18) away from the second hydraulic telescopic rod (12) is rotatably connected to the outer wall of the second fixed block (17) away from the connecting seat (9). The upper outer wall of the connecting seat (9) is rotatably connected to the inner wall of the lower surface of the movable seat (15) away from the first fixed block (16).

2. The polishing apparatus for metal surface treatment according to claim 1, characterized in that: The outer walls of the two T-shaped blocks on the mounting base (11) are slidably connected to the inner grooves of the two T-shaped blocks inside the groove of the connecting base (9); Among them, the outer walls of the two conical blocks on the mounting base of the polishing disc (10) are slidably connected to the two conical grooves opened on the fixed base of the output end of the second motor (19), and the two T-shaped blocks on the mounting base (11) are installed on the connecting base (9) with bolts.

3. The polishing apparatus for metal surface treatment according to claim 1, characterized in that: The two conical blocks on the polishing disc (10) are bolted to the fixed seat on the output end of the second motor (19). The outer walls of the T-shaped blocks on both sides of the movable seat (15) are slidably connected to the two T-shaped block grooves opened on the lower surface of the sliding support column (7). The output end of the first motor (8) extends to the groove on the lower surface of the sliding support column (7) and is fixedly connected to one end of the threaded rod (14).

4. The polishing apparatus for metal surface treatment according to claim 1, characterized in that: The support column (5) is fixedly installed on the upper surface of the base (1), the sliding support column (7) is sleeved on the outer wall of the support column (5), and the upper surface of the support column (5) is fixedly connected to the first hydraulic telescopic rod (6); The output end of the first hydraulic telescopic rod (6) extends to the groove on the outer wall of the support column (5) and is fixedly connected to the upper surface of the sliding support column (7).

5. A polishing apparatus for metal surface treatment according to claim 1, characterized in that: The outer walls of the conical blocks on both sides of the sliding support column (7) are slidably connected to the inner walls of the conical block grooves on both sides of the support column (5); Among them, two support plates (2) are fixedly connected to the upper surface of the base (1), and cylinders (3) are fixedly installed on the outer walls of the two support plates (2).

6. A polishing apparatus for metal surface treatment according to claim 5, characterized in that: The output end of the cylinder (3) slides to the outside of the support plate (2) and is fixedly connected to the outer wall of the corresponding clamping block (4); Among them, the two sliding rods that are slidably connected to the outer walls of the two support plates (2) extend to the outside of the support plate (2) and are fixedly connected to the outer walls of the corresponding clamping blocks (4).

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