Polishing device for metal processing

Abstract

The invention relates to the technical field of metal processing, and discloses a polishing device for metal processing, comprising a base plate, a rotating motor is arranged on the upper side of the base plate, a rotating disk is fixedly installed on the upper end of the output shaft of the rotating motor, a polishing disk a is arranged on the upper side of the rotating disk, a support plate is arranged above the polishing disk a, a plurality of circular grooves are opened on the support plate, a supporting seat is fixedly installed on the base plate, a supporting column is movably penetrated on the supporting seat, steel balls to be polished are placed on the support plate, and then the support plate is shaken back and forth, so that the steel balls can enter the plurality of circular grooves, and then the placing ring on the support plate is placed on one of the supporting rings, so that the supporting ring can be rotated and moved to the polishing disk a, so that after the rotating motor drives the rotating disk to rotate, it will drive the polishing disk a to rotate to polish the steel balls, and at the same time, the rotating polishing disk a can drive the steel balls to rotate for comprehensive polishing treatment, so that multiple steel balls can be polished quickly and simultaneously.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a polishing device for metal processing. Background Art

[0002] Steel ball is a spherical iron alloy wear-resistant body made by forging, spinning, rolling, grinding and casting with carbon, chromium, manganese and molybdenum as the main metal elements. It is the most important component of today's crushing industry and bearing industry. Steel ball is prone to rust on the surface after being placed for a long time, which will affect its use. Therefore, the surface of the steel ball needs to be polished. Since the curvature of the steel ball surface is more complicated to polish, it will affect the polishing efficiency. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a polishing device for metal processing, which has the advantages of being able to quickly and simultaneously polish multiple steel balls, etc., and solves the problem that the surface of the steel balls is prone to rust after being left for a long time, which affects the use, and thus the surface of the steel balls needs to be polished. Since polishing the curvature of the steel ball surface is relatively cumbersome, this affects the polishing efficiency.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of being able to quickly and simultaneously polish multiple steel balls, the present invention provides the following technical solutions: a polishing device for metal processing, comprising a base plate, a rotating motor is arranged on the upper side of the base plate, a rotating disk is fixedly installed on the upper end of the output shaft of the rotating motor, a polishing disk a is arranged on the upper side of the rotating disk, a support plate is arranged above the polishing disk a, a plurality of circular grooves are opened on the support plate, a support seat is fixedly installed on the base plate, a support column is movably penetrated through the support seat, a rotating bar is movably sleeved on the support column, support rings are fixedly installed at both ends of the rotating bar, a fixing ring is fixedly installed on the upper side of the support plate, a placing ring is fixedly sleeved on the fixing ring, and two handles are fixedly installed on the placing ring.

[0007] Preferably, the support seat is provided with two vertical grooves, two pressure springs a are fixedly installed on the lower inner walls of the two vertical grooves, and lifting plates are movably connected in the two vertical grooves, and the two lifting plates are fixedly connected to the upper end of each pressure spring a respectively.

[0008] Preferably, two connecting bars are arranged between the two lifting plates, and the left and right ends of the two connecting bars are fixedly connected to the two lifting plates. Two transverse grooves are provided on the upper side of the support seat, and the two transverse grooves are connected to the two vertical grooves.

[0009] Preferably, pressure balls are arranged above the two lifting plates, a lifting groove is opened on the upper side of the support column, a lifting rod is movably connected in the lifting groove, two linking bars are fixedly installed on the lifting rod, short columns are fixedly installed on the lower sides of the two linking bars, and the two short columns are fixedly connected to the two pressure balls respectively.

[0010] Preferably, the outer wall of the lifting rod is provided with two limit grooves, both limit grooves are movably connected with limit blocks, both limit blocks are fixedly connected to the upper side of the support column, and the upper sides of the two lifting plates are provided with a plurality of movable grooves, and each movable groove is movably connected with a movable ball.

[0011] Preferably, a lifting plate is fixedly sleeved on the rotating motor, four cylinders are fixedly mounted on the upper side of the bottom plate, and the upper ends of the output shafts of the four cylinders are fixedly connected to the lower side of the lifting plate.

[0012] Preferably, a support frame is fixedly installed on the upper side of the bottom plate, a top plate is fixedly installed on the support frame, two lifting devices are fixedly installed on the upper side of the top plate, the output shafts of the two lifting devices movably pass through the top plate, circular plates are fixedly installed on the output lower ends of the two lifting devices, a number of spherical grooves are opened on the two circular plates, a small ball is movably connected in each spherical groove, round boxes are provided on the two circular plates, through openings are opened on the upper walls of the two circular boxes, the output shafts of the two lifting devices are respectively arranged in the through openings on the upper walls of the two circular boxes, a movable circular plate is fixedly installed on the lower side of the two circular boxes, four connecting columns movably pass through the movable circular plate, circular rings are fixedly sleeved on the four connecting columns, lifting discs are fixedly installed on the lower ends of the four connecting columns, a polishing disc b is provided on the lower side of the lifting disc, and a movable half frame is movably connected to the movable circular plate through a hinge.

[0013] Preferably, a circle of screws is fixedly installed on the upper side of the polishing disk b, each screw is movably connected to the lifting disk, a nut is threadedly sleeved on each screw, and pressure springs b are movably sleeved on the four connecting columns. The upper end of each pressure spring b is fixedly connected to the movable circular plate, and the lower end of each pressure spring b is fixedly connected to the lifting disk. A circle of connecting grooves is opened on the upper side of the rotating disk, and a small rod is movably connected in each connecting groove, and each small rod is fixedly connected to the polishing disk a.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a polishing device for metal processing, which has the following beneficial effects:

[0016] 1. The polishing device for metal processing places the steel balls to be polished on a pallet, and then shakes the pallet back and forth so that the steel balls can enter several circular grooves, and then the placing ring on the pallet is placed on one of the supporting rings, so that the supporting ring can be rotated and moved to the polishing disk a, so that the rotating motor drives the rotating disk to rotate, which will drive the polishing disk a to rotate and polish the steel balls. At the same time, the rotating polishing disk a can drive the steel balls to rotate for comprehensive polishing treatment, so that multiple steel balls can be polished quickly at the same time, and then a pallet is taken out to place the steel balls, and then the new pallet is placed on another supporting ring, so that the work efficiency can be further improved.

[0017] 2. The polishing device for metal processing can limit the position of the rotating bar through two lifting plates, so as to avoid the situation where the steel balls cannot be polished due to rotation during grinding and polishing. When rotation is required, the two lifting plates can be pressed downward to rotate the rotating bar.

[0018] 3. The polishing device for metal processing can drive the two connecting strips to move downward by pressing one of the two lifting plates downward, thereby driving the other lifting plate to move downward, so that the user can move the other lifting plate downward by pressing one of the lifting plates.

[0019] 4. The polishing device for metal processing can drive the two connecting bars to move downward by pressing the lifting rod downward, thereby driving the two short columns to move downward, thus driving the two pressure balls to move downward, and thus the two lifting plates can be pressed downward by the two pressure balls, so that it is convenient for users to press the lifting plates, thereby facilitating user use. At the same time, the curvature of the surface of the pressure ball can squeeze the pressure ball upward when the rotating bar rotates.

[0020] 5. The polishing device for metal processing can cooperate with the limit block through the limit groove to ensure the stability of the lifting rod when it moves up and down, and can prevent the lifting rod from rotating. The movable ball can reduce the friction between the rotating bar when it rotates and moves above the lifting plate, so as to facilitate user use.

[0021] 6. The polishing device for metal processing can drive the lifting plate to move upward through four cylinders, so that the rotating motor can be driven upward, thereby driving the rotating plate to move upward, so that the polishing plate b can be driven upward, and the height of the polishing plate b can be controlled by four cylinders, so that steel balls of different sizes can be polished.

[0022] 7. The polishing device for metal processing can drive the two circular plates to move up and down through the lifting device, so that the movable circular plate can be driven to move up and down through the two round boxes, so that the movable circular plate can be moved downward when polishing the steel balls, so that the lifting disc can be moved downward to make the polishing disc b contact the steel balls, so that the polishing efficiency can be further improved while the lifting disc can be moved back and forth to move the polishing disc b, so that the rotating steel balls can be driven to adjust while rotating so that they can be fully polished.

[0023] 8. The polishing device for metal processing can facilitate users to replace polishing disc b through the screw and nut, and can facilitate users to replace polishing disc a through the small rod and the connecting groove. The pressure spring b can apply pressure downward through the movable circular plate while avoiding excessive pressure affecting the rotation of the steel ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the movable semicircle;

[0026] Figure 3 For the present invention Figure 1 A schematic diagram of the three-dimensional structure of the middle support seat;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the three-dimensional structure of the middle lifting rod;

[0028] Figure 5 For the present invention Figure 3 Schematic diagram of the three-dimensional structure of the middle lifting plate;

[0029] Figure 6 For the present invention Figure 2 Schematic diagram of the three-dimensional structure of the middle lifting disc;

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the three-dimensional structure of the middle fixing ring;

[0031] Figure 8 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle cylinder;

[0032] Fig. 9 For the present invention Figure 2 A schematic diagram of the cross-sectional three-dimensional structure of the middle round box;

[0033] Fig.10 For the present invention Figure 6 Schematic diagram of the three-dimensional structure of the rotating disk.

[0034] In the figure: 1, bottom plate; 2, support frame; 3, top plate; 4, lifting device; 5, support column; 6, rotating bar; 7, support ring; 8, support seat; 9, rotating motor; 10, cylinder; 11, lifting disc; 12, movable circular plate; 13, connecting column; 14, circular ring; 15, movable half frame; 16, round box; 17, circular plate; 18, handle; 19, polishing disc a; 20, lifting rod; 21, linkage bar; 22, short column; 23, pressure ball; 24, lifting plate ; 25. Vertical slot; 26. Movable ball; 27. Movable slot; 28. Connecting strip; 29. ​​Lifting slot; 30. Horizontal slot; 31. Limit block; 32. Limiting slot; 33. Pressure spring a; 34. Spherical slot; 35. Small ball; 36. Rotating disk; 37. Fixed ring; 38. Placement ring; 39. Polishing disk b; 40. Nut; 41. Screw; 42. Pressure spring b; 43. Support plate; 44. Round slot; 45. Lifting disk; 46. Connecting slot; 47. Small rod. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings, wherein the same components are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom surface" and "top surface" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 10The present invention provides a technical solution: a polishing device for metal processing, comprising a bottom plate 1, a rotating motor 9 is arranged on the upper side of the bottom plate 1, a rotating disk 36 is fixedly installed on the upper end of the output shaft of the rotating motor 9, a polishing disk a19 is arranged on the upper side of the rotating disk 36, a support plate 43 is arranged above the polishing disk a19, a plurality of circular grooves 44 are opened on the support plate 43, a support seat 8 is fixedly installed on the bottom plate 1, a support column 5 is movably penetrated on the support seat 8, a rotating bar 6 is movably sleeved on the support column 5, support rings 7 are fixedly installed at both ends of the rotating bar 6, a fixing ring 37 is fixedly installed on the upper side of the support plate 43, a placing ring 38 is fixedly sleeved on the fixing ring 37, two handles 18 are fixedly installed on the placing ring 38, by placing the steel ball to be polished on the support plate 43 On, then shake the support plate 43 back and forth, so that the steel balls can enter several circular grooves 44, and then place the placement ring 38 on the support plate 43 on one of the support rings 7, so that the support ring 7 can be rotated and moved to the polishing disk a19, so that the rotating motor 9 drives the rotating disk 36 to rotate, which will drive the polishing disk a19 to rotate and polish the steel balls. At the same time, the rotating polishing disk a19 can drive the steel balls to rotate for comprehensive polishing treatment, so that multiple steel balls can be polished quickly at the same time, and then take out a support plate 43 to place steel balls, and then place the new support plate 43 on another support ring 7, so that the work efficiency can be further improved. Two vertical grooves 25 are provided on the support seat 8, and the lower inner part of the two vertical grooves 25 Two pressure springs a33 are fixedly installed on the wall, and lifting plates 24 are movably connected in the two vertical grooves 25. The two lifting plates 24 are respectively fixedly connected to the upper end of each pressure spring a33. The two lifting plates 24 can limit the rotation bar 6 to prevent the steel balls from being unable to polish due to rotation during grinding and polishing. When rotation is required, the two lifting plates 24 can be pressed downward, so that the rotating bar 6 can be rotated. Two connecting strips 28 are arranged between the two lifting plates 24. The left and right ends of the two connecting strips 28 are fixedly connected to the two lifting plates 24. Two transverse grooves 30 are provided on the upper side of the support seat 8. The two transverse grooves 30 are connected to the two vertical grooves 25. By pressing one of the two lifting plates 24 downward, the rotation bar 6 can be rotated. To drive the two connecting strips 28 to move downward, so that the other lifting plate 24 can be driven to move downward, so that the user can press one of the lifting plates 24 and move the other lifting plate 24 downward at the same time, pressure balls 23 are arranged above the two lifting plates 24, and a lifting groove 29 is provided on the upper side of the support column 5, and a lifting rod 20 is movably connected in the lifting groove 29, and two linkage strips 21 are fixedly installed on the lifting rod 20, and short columns 22 are fixedly installed on the lower sides of the two linkage strips 21, and the two short columns 22 are respectively fixedly connected to the two pressure balls 23, and the two connecting strips 21 can be driven to move downward by pressing the lifting rod 20 downward, thereby driving the two short columns 22 to move downward, and thus driving the two pressure balls 23 to move downward.Thereby, the two lifting plates 24 can be pressed downward by the two pressure balls 23, so that it is convenient for the user to press the lifting plates 24, thereby making it convenient for the user to use. At the same time, the curvature of the surface of the pressure ball 23 can squeeze the pressure ball 23 upward when the rotating bar 6 rotates over. The outer wall of the lifting rod 20 is provided with two limit grooves 32, and the two limit grooves 32 are movably connected with the limit blocks 31. The two limit blocks 31 are fixedly connected to the upper side of the support column 5. A plurality of movable grooves 27 are provided on the upper side of the two lifting plates 24, and each movable groove 27 is movably connected with the movable ball 26. The limit grooves 32 can cooperate with the limit blocks 31 to ensure the stability of the lifting rod 20 when it moves up and down, and at the same time, the lifting rod 20 can be prevented from rotating. The friction between the rotating bar 6 and the lifting plate 24 can be reduced when the rotating bar 6 rotates and moves above the lifting plate 24, so as to facilitate the use of the user. A lifting plate 45 is fixedly sleeved on the rotating motor 9, and four cylinders 10 are fixedly installed on the upper side of the bottom plate 1. The upper ends of the output shafts of the four cylinders 10 are fixedly connected to the lower side of the lifting plate 45. The lifting plate 45 can be driven to move upward by the four cylinders 10, so that the rotating motor 9 can be driven to move upward, thereby driving the rotating plate 36 to move upward, so that the polishing plate b19 can be driven to move upward, so that the height of the polishing plate b19 can be controlled by the four cylinders 10, so that steel balls of different sizes can be polished. A support frame 2 is fixedly installed on the upper side of the bottom plate 1, and a top plate 3 is fixedly installed on the upper side of the top plate 3. Two lifting devices 4 are fixedly installed, and the output shafts of the two lifting devices 4 are movable through the top plate 3. The output lower ends of the two lifting devices 4 are fixedly installed with circular plates 17. The two circular plates 17 are provided with a number of spherical grooves 34, and each spherical groove 34 is movably connected with a small ball 35. The two circular plates 17 are provided with round boxes 16, and the upper walls of the two circular boxes 16 are provided with through openings. The output shafts of the two lifting devices 4 are respectively arranged in the through openings on the upper walls of the two circular boxes 16. The lower sides of the two circular boxes 16 are fixedly installed with movable circular plates 12, and four connecting columns 13 are movably penetrated on the movable circular plate 12. The four connecting columns 13 are fixedly sleeved with circular rings 14. The lower ends of the four connecting columns 13 are fixedly installed with lifting discs 11, and the lower side of the lifting discs 11 is provided with polishing The movable circular plate 12 is connected with a movable half frame 15 through a hinge, and the two circular plates 17 can be driven to move up and down through the lifting device 4, so that the movable circular plate 12 can be driven to move up and down through the two round boxes 16, so that the movable circular plate 12 can be moved downward when polishing the steel balls, so that the lifting disc 11 can be moved downward to make the polishing disc b39 contact the steel balls, so that the polishing efficiency can be further improved, and the lifting disc 11 can be moved back and forth to move the polishing disc b39, so that the rotating steel balls can be driven to adjust while rotating to perform comprehensive polishing, and a circle of screws 41 are fixedly installed on the upper side of the polishing disc b39, each screw 41 is movable and penetrates the lifting disc 11, and each screw 41 is threadedly sleeved with a nut 40,The four connecting columns 13 are all movably sleeved with pressure springs b42, the upper end of each pressure spring b42 is fixedly connected to the movable circular plate 12, and the lower end of each pressure spring b42 is fixedly connected to the lifting disc 11. A circle of connecting grooves 46 are provided on the upper side of the rotating disc 36, and a small rod 47 is movably connected in each connecting groove 46. Each small rod 47 is fixedly connected to the polishing disc a19. The polishing disc b39 can be conveniently replaced by the user through the screw 41 and the nut 40, and the polishing disc a19 can be conveniently replaced by the user through the small rod 47 and the connecting groove 46. The pressure spring b42 can apply downward pressure through the movable circular plate 12 while avoiding excessive pressure affecting the rotation of the steel ball.

[0038] When in use, the first step is: by placing the steel balls to be polished on the support plate 43, and then shaking the support plate 43 back and forth, so that the steel balls can enter several circular grooves 44, and then place the placement ring 38 on the support plate 43 on one of the support rings 7, so that the support ring 7 can be rotated and moved to the polishing disk a19, so that the rotating motor 9 drives the rotating disk 36 to rotate, which will drive the polishing disk a19 to rotate and polish the steel balls. At the same time, the rotating polishing disk a19 can drive the steel balls to rotate for comprehensive polishing. In this way, multiple steel balls can be polished quickly and simultaneously, and then take out another support plate 43 to place the steel balls, and then place the new support plate 43 on another support ring 7, so that the work efficiency can be further improved.

[0039] Step 2: The rotating bar 6 can be limited by two lifting plates 24 to prevent the steel balls from being unable to polish due to rotation during grinding and polishing. When rotation is required, the two lifting plates 24 can be pressed downward to rotate the rotating bar 6.

[0040] Step 3: By pressing one of the two lifting plates 24 downward, the two connecting bars 28 can be driven to move downward, thereby driving the other lifting plate 24 downward, so that the user can move the other lifting plate 24 downward by pressing one of the lifting plates 24 at the same time.

[0041] Step 4: By pressing the lifting rod 20 downward, the two connecting bars 21 can be driven to move downward, thereby driving the two short columns 22 to move downward, and thus driving the two pressure balls 23 to move downward, so that the two lifting plates 24 can be pressed downward by the two pressure balls 23, so that it is convenient for the user to press the lifting plates 24, thereby facilitating the user's use. At the same time, the curvature of the surface of the pressure ball 23 can squeeze the pressure ball 23 upward when the rotating bar 6 rotates over.

[0042] Step 5: The limit groove 32 can cooperate with the limit block 31 to ensure the stability of the lifting rod 20 when it moves up and down, and at the same time prevent the lifting rod 20 from rotating. The movable ball 26 can reduce the friction between the rotating bar 6 when it rotates and moves above the lifting plate 24, thereby facilitating user use.

[0043] Step 6: The lifting plate 45 can be driven upward by four cylinders 10, which can drive the rotating motor 9 to move upward, thereby driving the rotating plate 36 to move upward, thus driving the polishing plate b19 to move upward, and the height of the polishing plate b19 can be controlled by four cylinders 10, so that steel balls of different sizes can be polished.

[0044] Step 7: The two circular plates 17 can be driven to move up and down through the lifting device 4, so that the movable circular plate 12 can be driven to move up and down through the two round boxes 16, so that the movable circular plate 12 can be moved downward when polishing the steel balls, so that the lifting disc 11 can be moved downward to make the polishing disc b39 contact the steel balls, so that the polishing efficiency can be further improved while the lifting disc 11 can be moved back and forth to move the polishing disc b39, so that the rotating steel balls can be driven to adjust while rotating so that they can be fully polished.

[0045] Step 8: The screw rod 41 cooperates with the nut 40 to facilitate users to replace the polishing disc b39, and the small rod 47 and the connecting groove 46 can facilitate users to replace the polishing disc a19. The pressure spring b42 can apply downward pressure through the movable circular plate 12 while avoiding excessive pressure affecting the rotation of the steel ball.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for metal processing, comprising a base plate (1), characterized in that: A rotating motor (9) is arranged on the upper side of the bottom plate (1), a rotating disk (36) is fixedly mounted on the upper end of the output shaft of the rotating motor (9), a polishing disk a (19) is arranged on the upper side of the rotating disk (36), a support plate (43) is arranged above the polishing disk a (19), a plurality of circular grooves (44) are opened on the support plate (43), a support seat (8) is fixedly mounted on the bottom plate (1), a support column (5) is movably penetrated on the support seat (8), a rotating bar (6) is movably sleeved on the support column (5), support rings (7) are fixedly mounted on both ends of the rotating bar (6), a fixing ring (37) is fixedly mounted on the upper side of the support plate (43), a placement ring (38) is fixedly sleeved on the fixing ring (37), and a fixing ring (38) is fixedly mounted on the placement ring (38). Two handles (18) are provided, two vertical grooves (25) are provided on the support seat (8), two pressure springs a (33) are fixedly installed on the lower inner walls of the two vertical grooves (25), lifting plates (24) are movably connected in the two vertical grooves (25), the two lifting plates (24) are respectively fixedly connected to the upper ends of each pressure spring a (33), two connecting strips (28) are provided between the two lifting plates (24), the left and right ends of the two connecting strips (28) are fixedly connected to the two lifting plates (24), two transverse grooves (30) are provided on the upper side of the support seat (8), the two transverse grooves (30) are connected to the two vertical grooves (25), pressure balls (23) are provided above the two lifting plates (24), and the upper side of the support column (5) is provided with a pressure ball (23). A lifting groove (29) is provided, a lifting rod (20) is movably connected in the lifting groove (29), two linkage bars (21) are fixedly installed on the lifting rod (20), short columns (22) are fixedly installed on the lower sides of the two linkage bars (21), and the two short columns (22) are respectively fixedly connected to two pressure balls (23). A support frame (2) is fixedly installed on the upper side of the bottom plate (1), a top plate (3) is fixedly installed on the support frame (2), and two lifting devices (4) are fixedly installed on the upper side of the top plate (3), the output shafts of the two lifting devices (4) are movably penetrated through the top plate (3), and the output lower ends of the two lifting devices (4) are fixedly installed with circular plates (17), and the two circular plates (17) are each provided with a plurality of spherical grooves (34). A small ball (35) is movably connected in each spherical groove (34), a round box (16) is arranged on each of the two circular plates (17), and a through hole is opened on the upper wall of the two circular boxes (16). The output shafts of the two lifting devices (4) are respectively arranged in the through holes on the upper wall of the two circular boxes (16). A movable circular plate (12) is fixedly installed on the lower side of the two circular boxes (16), and four connecting columns (13) are movably penetrated on the movable circular plate (12). The four connecting columns (13) are fixedly sleeved with a circular ring (14), and a lifting disc (11) is fixedly installed on the lower end of the four connecting columns (13). A polishing disc b (39) is arranged on the lower side of the lifting disc (11), and a movable half frame (15) is movably connected to the movable circular plate (12) through a hinge.

2. A polishing device for metal processing according to claim 1, characterized in that: The outer wall of the lifting rod (20) is provided with two limit grooves (32), and the two limit grooves (32) are movably connected to the limit blocks (31). The two limit blocks (31) are fixedly connected to the upper side of the support column (5). The upper sides of the two lifting plates (24) are provided with a plurality of movable grooves (27), and each movable groove (27) is movably connected to a movable ball (26).

3. A polishing device for metal processing according to claim 1, characterized in that: A lifting plate (45) is fixedly sleeved on the rotating motor (9), and four cylinders (10) are fixedly mounted on the upper side of the bottom plate (1). The upper ends of the output shafts of the four cylinders (10) are fixedly connected to the lower side of the lifting plate (45).

4. A polishing device for metal processing according to claim 1, characterized in that: A circle of screw rods (41) is fixedly mounted on the upper side of the polishing disc b (39), each screw rod (41) is movably connected to the lifting disc (11), a nut (40) is threadedly sleeved on each screw rod (41), and a pressure spring b (42) is movably sleeved on the four connecting columns (13), the upper end of each pressure spring b (42) is fixedly connected to the movable circular plate (12), and the lower end of each pressure spring b (42) is fixedly connected to the lifting disc (11). A circle of connecting grooves (46) is provided on the upper side of the rotating disc (36), and a small rod (47) is movably connected in each connecting groove (46), and each small rod (47) is fixedly connected to the polishing disc a (19).

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