Automatic surface grinding production line

Abstract

The invention discloses an automatic surface grinding production line, which belongs to the technical field of saw blade production equipment. It solves the defects of the prior art that the manual operation of the grinder for saw blade processing is high in work intensity, low in efficiency, harmful to the body, and the processing quality requires high experience of the workers. It mainly includes a feeding device, a grinding device, a blade turning device, a cleaning device and a weighing and positioning device which are arranged in sequence, and also includes a manipulator and a grinding device.

Description

Technical Field

[0001] The invention belongs to the technical field of saw blade production equipment, and in particular, relates to an automatic surface grinding production line. Background Art

[0002] At present, saw blade production is still mainly carried out by workers manually operating grinders. During the production of saw blades, workers need to manually complete the processes of saw blade loading, unloading, grinding, cleaning, and thickness detection of saw blade blanks. After one side of the saw blade is ground, it must be turned over to complete the grinding of the other side. The labor intensity of the workers is high, the production efficiency is low, and the workers' experience is high. Moreover, the workers will inevitably come into contact with the grinding fluid during operation, causing certain harm to the body. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic surface grinding production line to overcome the defects of the prior art in which saw blade processing is carried out by manually operating a grinder, such as high work intensity, low efficiency, harm to the body, and high requirements on worker experience for processing quality.

[0004] The present invention is realized by adopting the following technical scheme: an automatic surface grinding production line, comprising a feeding device, a grinding device, a sheet turning device, a cleaning device and a weighing and positioning device arranged in sequence, and also comprising a manipulator and a grinding device.

[0005] Furthermore, it also includes a material preparation device, which includes at least one material preparation support table.

[0006] Furthermore, the loading device includes a lifting platform, a transfer device and a detection device. The bottom of the lifting platform is connected to the lifting device installed on the frame, and the frame is equipped with a block on the outside of the lifting platform. The transfer device includes a transverse moving platform, which is installed on the frame and moves laterally relative to the frame. A loading suction cup that can move up and down relative to the transverse moving platform is installed on the lower side of the transverse moving platform.

[0007] Furthermore, the grinding device includes a rotating motor and a cleaning and cooling device installed on a frame, a rotating platform is installed on the upper side of the rotating motor, the rotating motor drives the rotating platform to rotate, a retaining ring is arranged on the outer side of the rotating platform, and a first grinding part that can move up and down relative to the transverse platform is installed on the lower side of the transverse platform, the cleaning and cooling device includes a cleaning water pipe, the cleaning water pipe is connected to the grinding water tank through a water pump, and a first funnel is installed at the bottom of the rotating platform.

[0008] Furthermore, the flap turning device comprises a rotating shaft and a driving member installed on a frame, a rotating suction cup is installed on the rotating shaft, and the rotating shaft is connected to the driving member.

[0009] Furthermore, the cleaning device includes a water spray hood, a conveying device, a sponge roller and a cleaning water tank. The conveying device passes through the water spray hood, a water spray pipe is installed in the water spray hood, a second funnel is arranged on the lower side of the water spray hood, the water spray pipe is connected to the cleaning water tank through a water pump, and the sponge roller is on one side of the cleaning water tank and includes an upper sponge roller and a lower sponge roller.

[0010] Furthermore, the weighing and positioning device includes a positioning mechanism, a weighing mechanism and a conveying device.

[0011] Furthermore, the positioning mechanism described in the present invention includes a power part, which is connected to the third gear. The power part drives the third gear to rotate. The lower side of the front baffle is connected to a transverse rack that cooperates with the third gear. The third gear drives the front baffle to move laterally through the transverse rack. The lower side of the side baffle is connected to a longitudinal rack that cooperates with the third gear. The longitudinal racks on the side baffles are respectively on both sides of the gear. The third gear drives the side baffles on both sides to move longitudinally through the longitudinal racks on both sides.

[0012] Furthermore, the robot is a 6-axis robot.

[0013] Furthermore, the grinding device includes at least one grinding machine.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention realizes the automated production of saw blades, greatly improves production efficiency, reduces workers' labor intensity, and at the same time, the processing quality of saw blades is more stable. One worker can operate multiple production lines at the same time, and the worker does not need to contact grinding fluid or other liquids that are harmful to the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a stereogram of the present invention;

[0017] Figure 2 yes Figure 1 Partial magnification Figure Ⅰ ;

[0018] Figure 3 yes Figure 1 Partial magnification Figure II ;

[0019] Figure 4 yes Figure 1 Partial magnification Figure III ;

[0020] Figure 5 yes Figure 1 Partial magnification Figure IV ;

[0021] Figure 6 yes Figure 1 Partial magnification Figure V;

[0022] Figure 7 It is a front view of the present invention;

[0023] Figure 8 yes Figure 7 Partial magnification Figure VI ;

[0024] Fig. 9 yes Figure 7 Partial magnification Figure VII ;

[0025] Fig.10 yes Figure 7 Partial magnification Figure VIII ;

[0026] Fig.11 yes Figure 7 A-A sectional view;

[0027] Fig.12 yes Fig.11 Partial magnification Figure IX .

[0028] In the figure: 1. feeding device; 2. grinding device; 3. flipping device; 4. cleaning device; 5. weighing and positioning device; 6. manipulator; 7. grinding device; 8. material preparation device; 9. material preparation support platform; 10. lifting platform; 11. detection device; 12. frame; 13. block; 14. transverse platform; 15. feeding suction cup; 16. rotating motor; 17. rotating platform; 18. retaining ring; 19. first grinding part; 20. cleaning water pipe; 21. cleaning water tank; 22. first funnel; 23. second telescopic cylinder; 24. rotating suction cup; 25. second rack; 26. bearing seat; 27. rotating shaft; 2 8. Second gear; 29. ​​Water hood; 30. Conveying device; 31. Water pipe; 32. Second funnel; 33. Upper sponge roller; 34. Lower sponge roller; 35. Front baffle; 36. Side baffle; 37. Weighing sensor; 38. Grinder; 39. Screw lift; 40. Z-axis arm; 41. First rack; 42. Injury-proof convex edge; 43. First telescopic cylinder; 44. Connecting ear; 45. Paper reel; 46. Turning rod; 47. Power part; 48. Third gear; 49. Transverse rack; 50. Longitudinal rack; 51. Support plate; 52. First gear; 53. Grinding water tank; 54. Third telescopic cylinder. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] An automatic surface grinding production line comprises a feeding device 1, a grinding device 2, a sheet turning device 3, a cleaning device 4 and a weighing and positioning device 5 which are arranged in sequence, and also comprises a manipulator 6 and a grinding device 7.

[0031] The feeding device 1 of the present invention is used to provide saw blades to the grinding device 2. The worker first places multiple saw blades on the feeding device 1, and the feeding device 1 places the saw blades on the grinding device 2 in sequence according to the processing needs; the grinding device 2 is used to grind the saw blade to remove burrs on one side of the saw blade; the blade turning device 3 is used to turn the saw blade 180 degrees so that the surface of the saw blade to be processed is on the upper side; the cleaning device 4 is used to clean the saw blade; the weighing and positioning device 5 is used to position and weigh the saw blade; the manipulator 6 is used to transport the saw blade, and the manipulator 6 is used to transport the saw blade at the weighing and positioning position to the grinding device 7 and to transport the saw blade on the grinding device 7 to the blade turning device 3; the present invention also includes a controller, which can be a PLC controller, and the controller controls the actions of the feeding device 1, the grinding device 2, the blade turning device 3, the cleaning device 4, the weighing and positioning device 5, the manipulator 6 and the grinding device 7; the present invention measures the weight of the saw blade by the weighing and positioning device 5 and feeds the weight back to the controller to determine the grinding amount of the saw blade.

[0032] It also includes a material preparation device 8 , which includes at least one material preparation support platform 9 installed on the frame 12 .

[0033] The grinding device 7 includes at least one grinding machine 38 .

[0034] The material preparation device 8 of the present invention includes at least three material preparation support tables 9, and the grinding device 7 includes at least three grinders 38. The manipulator 6 first places the saw blade that has been weighed and positioned on the weighing and positioning device 5 on the material preparation support table 9 according to the instructions of the controller. A saw blade to be processed is placed on each material preparation support table 9. When a grinder 38 is ready to process the next saw blade, the manipulator 6 will place the saw blade on the material preparation support table 9 into the grinder 38. After the saw blade on the grinder 38 is ground, the manipulator 6 will place the saw blade on the grinder 38 onto the rotating suction cup 24.

[0035] The loading device 1 includes a lifting platform 10, a transfer device and a detection device 11. The bottom of the lifting platform 10 is connected to the lifting device installed on the frame 12. The frame 12 is equipped with a stopper 13 on the outside of the lifting platform 10. The transfer device includes a transverse moving platform 14. The transverse moving platform 14 is installed on the frame 12 and moves laterally relative to the frame 12. A loading suction cup 15 that can move up and down relative to the transverse moving platform 14 is installed on the lower side of the transverse moving platform 14.

[0036] The feeding suction cup 15 of the present invention is an electromagnetic feeding suction cup, and a plurality of electromagnets are installed at the bottom of the feeding suction cup 15 .

[0037] The detection device 11 of the present invention includes a proximity switch, and a plurality of proximity switches may be provided.

[0038] The lifting device of the present invention is a screw lift 39, which drives the lifting platform 10 to move up and down.

[0039] In the present invention, a slide rail and slider structure is arranged between the transverse moving platform 14 and the frame 12, and the transverse moving platform 14 is driven by a first motor to move laterally relative to the frame 12, the loading suction cup 15 is connected to the Z-axis arm 40, and the Z-axis arm 40 includes a first rack 41 on one side, a second motor is installed on the transverse moving platform 14, and a first gear 52 matching the first rack 41 is installed on the output shaft of the second motor.

[0040] The working process of the feeding device 1 of the present invention is as follows:

[0041] The worker first places multiple saw blades on the lifting platform 10. When placing them, the top saw blade can be slightly lower than the height of the proximity switch. If the proximity switch does not detect an object at a certain distance in front, the screw lift 39 will drive the lifting platform 10 to rise until the proximity switch detects the top saw blade. At this time, if feeding is required, the controller controls the screw lift 39 to drive the lifting platform 10 to rise by the thickness of a saw blade. At this time, the height of the top saw blade is higher than the highest point of the block 13, and the height of the saw blade on the lower side of the top saw blade is lower than the highest point of the block 13. The first motor drives the transverse platform 14 to move to the upper side of the lifting platform 10, and the second motor drives the first gear 52 to rotate. The first gear 52 acts on the first rack 41 to move the Z-axis arm 40 downward, so that the feeding suction The disk 15 descends to a certain height until the electromagnet at the bottom of the loading suction cup 15 contacts the uppermost saw blade, and the loading suction cup 15 is energized. The first motor drives the loading suction cup 15 and the uppermost saw blade to move laterally through the transverse platform 14. The loading suction cup 15 may also attract the lower saw blade while attracting the uppermost saw blade, but because the height of the lower saw blade is lower than the height of the block 13, the lower saw blade is blocked by the block 13 and cannot be attracted by the loading suction cup 15 and moved laterally. The uppermost saw blade moves to the upper side of the rotating platform 17 under the drive of the loading suction cup 15. At this time, the second motor drives the Z-axis arm 40 to move downward a certain distance to cut off the power to the loading suction cup 15 or directly cut off the power to the loading suction cup 15. After the loading suction cup 15 is powered off, the saw blade falls on the rotating platform 17.

[0042] The grinding device 2 includes a rotating motor 16 and a cleaning and cooling device installed on the frame 12. A rotating platform 17 is installed on the upper side of the rotating motor 16. The rotating motor 16 drives the rotating platform 17 to rotate. A retaining ring 18 is arranged on the outer side of the rotating platform 17. A first grinding member 19 that can move up and down relative to the transverse platform 14 is installed on the lower side of the transverse platform 14. The cleaning and cooling device includes a cleaning water pipe 20. The cleaning water pipe 20 is connected to the grinding water tank 53 through a water pump. A first funnel 22 is installed at the bottom of the rotating platform 17.

[0043] The grinding device 2 of the present invention can remove burrs on one surface of the saw blade to meet the flatness requirement of the saw blade after being placed in the grinder 38, thereby improving the grinding accuracy of the saw blade.

[0044] The retaining ring 18 is provided with anti-injury ridges 42 on opposite sides thereof.

[0045] The retaining ring 18 of the present invention is provided with anti-injury ridges 42 on opposite sides. The anti-injury ridges 42 should be arranged on opposite sides of the aisle to prevent the saw blade from accidentally flying out of the rotating platform and flying into the aisle, thereby causing danger to the workers.

[0046] The first grinding member 19 is an oil stone. The first grinding member 19 is connected to a first telescopic cylinder 43 fixedly connected to the transverse platform 14. The first telescopic cylinder 43 drives the oil stone to move up and down through a telescopic rod.

[0047] The grinding process of the grinding device 2 of the present invention is as follows:

[0048] The saw blade is made to fall onto the rotating platform 17 through the loading device 1, the transverse platform 14 drives the oil stone to move and places the oil stone in a suitable position on the upper side of the saw blade, the first telescopic cylinder 43 drives the oil stone to move downward and presses the saw blade with the oil stone, the rotating motor 16 drives the rotating platform 17 to rotate, and then the oil stone grinds the saw blade, when one side of the saw blade is ground, the first telescopic cylinder 43 drives the oil stone to rise, the transverse platform 14 drives the loading suction cup 15 to move to the upper side of the saw blade, the second motor drives the Z-axis arm 40 to move downward, so that the loading suction cup 15 drops to a certain height until the electromagnet at the bottom of the loading suction cup 15 contacts the saw blade, the loading suction cup 15 is energized, and the first motor drives the loading suction cup 15 and the saw blade to move horizontally to the upper side of the rotating suction cup 24 through the transverse platform 14, and during the grinding process, the water in the cleaning water pipe 20 will be sprayed onto the saw blade to cool and clean the saw blade.

[0049] The flap turning device 3 comprises a rotating shaft 27 and a driving member installed on a frame. A rotating suction cup 24 is installed on the rotating shaft 27, and the rotating shaft 27 is connected to the driving member.

[0050] The driving member of the present invention drives the rotating shaft 27 to rotate 180 degrees, and then drives the rotating suction cup 24 to rotate 180 degrees. The rotating suction cup 24 is an electromagnetic loading suction cup, and an electromagnet is installed on the surface of the rotating suction cup 24; the driving member includes a second telescopic cylinder 23, a second rack 25 and a second gear 28. The second telescopic cylinder 23 is connected to the second rack 25 through a telescopic rod, and the rotating shaft 27 is installed at one end of the second rack 25 with a second gear 28 that cooperates with the second rack 25; a bearing seat 26 is installed on the frame 12, a bearing is installed in the bearing seat 26, and the rotating shaft 27 passes through the bearing.

[0051] The working process of the flap turning device 3 of the present invention is as follows:

[0052] The saw blade is transferred to the rotating suction cup 24 through the loading suction cup 15. When it needs to be rotated, the electromagnet on the rotating suction cup 24 is energized to suck the saw blade, and the second telescopic cylinder 23 drives the second rack 25 to move up and down, and then drives the rotating suction cup 24 to rotate 180 degrees through the second gear 28, and then the saw blade is turned over 180 degrees. At this time, the electromagnet on the rotating suction cup 24 is powered off, and the saw blade falls onto the conveying device 30.

[0053] The cleaning device 4 includes a water spray hood 29, a conveying device 30, a sponge roller and a cleaning water tank 21. The conveying device 30 passes through the water spray hood 29. A water spray pipe 31 is installed in the water spray hood 29. A second funnel 32 is arranged on the lower side of the water spray hood 29. The water spray pipe 31 is connected to the cleaning water tank 21 through a water pump. The sponge roller is on one side of the cleaning water tank 21 and includes an upper sponge roller 33 and a lower sponge roller 34.

[0054] The cleaning water tank 21 of the present invention is provided with filter paper on the upper side.

[0055] The cleaning water tank 21 of the present invention is provided with connecting ears 44 on both sides, one connecting ear 44 is installed with a paper reel 45, and the other connecting ear 44 is installed with a rotating rod 46 that can rotate relative to the connecting ear 44, and the filter paper is installed on the rotating rod 46 and connected to the paper reel 45.

[0056] The filter paper roll described in the present invention is installed on a rotating rod 46, and the filter paper passes through a paper reel shaft 45. We can connect a motor to the paper reel shaft 45, and the motor drives the paper reel shaft 45 to rotate. When the paper reel shaft 45 rotates, the filter paper will move toward the paper reel shaft 45, thereby completing the replacement of the filter paper; transition shafts are installed at both ends of the upper side of the cleaning water tank 21, and the filter paper contacts the transition shaft to prevent the filter paper from being torn when pulled.

[0057] The water spray pipe 31 of the present invention is equipped with a plurality of nozzles, and the water spray pipe 31 comprises an upper water spray pipe and a lower water spray pipe, which are respectively disposed on the upper and lower sides of the conveying device 30 to clean the upper and lower sides of the saw blade respectively.

[0058] The working process of the cleaning device 4 of the present invention is as follows:

[0059] When the saw blade passes through the water spray hood 29 through the conveying device 30, the water spray pipe 31 in the water spray hood 29 cleans the saw blade through the nozzle, and the waste water after cleaning enters the filter paper through the second funnel 32. The waste water is filtered by the filter paper and then re-enters the cleaning water tank 21, which well realizes the reuse of waste water. The cleaned saw blade enters the sponge roller, and the distance between the upper sponge roller 33 and the lower sponge roller 34 should be slightly smaller than the thickness of the saw blade. After the saw blade passes through the upper sponge roller 33 and the lower sponge roller 34, the sponge roller will absorb the water on the saw blade. After the filter paper has been filtered for a certain period of time, we can replace the filter paper by pulling the filter paper.

[0060] The weighing and positioning device 5 includes a positioning mechanism, a weighing mechanism, and a conveying device 30.

[0061] The positioning mechanism of the present invention includes a power member, a front stop bar 35, and side stop bars 36 on both sides. The power member is connected to a third gear 48, and the power member drives the third gear 48 to rotate. The lower side of the front stop bar 35 is connected to a horizontal rack 49 that cooperates with the third gear 48. The third gear 48 drives the front stop bar 35 to move horizontally through the horizontal rack 49. The lower side of the side stop bar 36 is connected to a vertical rack 50 that cooperates with the third gear 48. The vertical racks 50 on the two side stop bars 36 are respectively on both sides of the gear. The third gear 48 drives the two side stop bars 36 to move longitudinally through the two vertical racks 50 respectively. The power member is a motor or a telescopic cylinder. When the power member is a motor, it can be connected to the third gear 48 through the output shaft. When the power member is a telescopic cylinder, it can be connected to the rack through the telescopic rod to drive the third gear 48 to rotate.

[0062] The weighing mechanism of the present invention includes a weighing sensor 37. A lifting device is installed below the weighing sensor 37. The lifting device includes a support plate 51. The weighing sensor 37 is installed on the support plate 51. The bottom of the support plate 51 is connected to a third telescopic cylinder 54. The third telescopic cylinder 54 drives the support plate 51 to move up and down.

[0063] The upper side of the weighing sensor 37 of the present invention is inserted between the rollers of the roller conveyor. As Figure 6 shown, the upper side of the weighing sensor 37 can be in a "U" shape, and the two vertical plates are inserted between the rollers of the roller conveyor. When the lifting device raises the weighing sensor 37, the weighing sensor 3 can lift the saw blade and separate it from the roller conveyor.

[0064] The present invention measures the weight of the saw blade through the weighing and positioning device 5 and transmits it to the controller to determine the grinding amount of the saw blade.

[0065] The working process of the weighing and positioning device 5 of the present invention:

[0066] When the saw blade is transported to between the front stop bar 35 and the side stops 36 on both sides by the conveying device 30, the conveying device 30 stops moving, and the power member acts on the third gear 48 to rotate forward. Since the third gear 48 is respectively meshed with the transverse rack 49 and the longitudinal racks 50 on both sides, the third gear 48 drives the front stop bar 35 and the side stops 36 on both sides to move, so that the front stop bar 35 and the side stops 36 on both sides are in contact with the saw blade at the same time to position the saw blade. At this time, the power member acts on the third gear 48 to rotate in the opposite direction, so that the front stop bar 35 and the side stops 36 on both sides are not in contact with the saw blade. Then, the third telescopic cylinder 54 drives the weighing sensor 37 to move upward through the support plate 51 and lifts the saw blade to weigh the saw blade. After weighing, the support plate 51 drives the saw blade and the weighing sensor 37 to move downward so that the saw blade falls back on the conveying device 30. At this time, the power member acts on the third gear 48 to rotate forward, so that the front stop bar 35 and the side stops 36 on both sides are in contact with the saw blade again at the same time to position the saw blade, so as to facilitate the robot to transfer the saw blade.

[0067] The conveying devices 30 in the cleaning device 4 and the weighing and positioning device 5 of the present invention are both roller conveyors.

[0068] The robot 6 is a 6-axis robot.

[0069] A suction cup and a second grinding piece are installed at the bottom of the manipulator 6 described in the present invention, and a fourth telescopic cylinder is installed between the second grinding piece and the manipulator. The fourth telescopic cylinder drives the second grinding piece to move relative to the manipulator. The second grinding piece can regularly grind the surface of the grinder under the action of the fourth telescopic cylinder and the manipulator. The suction cup on the manipulator 6 is an electromagnetic suction cup or a pneumatic suction cup, and the second grinding piece is also an oilstone.

[0070] Working process of the present invention:

[0071] 1), the feeding device 1 feeds the saw blade into the grinding device 2;

[0072] 2), the grinding device 2 grinds the A surface of the saw blade;

[0073] 3) The saw blade after grinding enters the blade turning device 3, which turns the saw blade 180 degrees, so that the ground surface A of the saw blade is on the lower side and the surface B to be processed is on the upper side;

[0074] 4) The turned saw blade enters the cleaning device 4 for cleaning;

[0075] 5) After cleaning, the saw blade enters the weighing and positioning device 5, which positions and weighs the saw blade to facilitate the robot 6 to transport the saw blade and determine the processing amount of the saw blade;

[0076] 6), the manipulator 6 sends the weighed saw blade to the grinding device 7 for grinding;

[0077] 7), after the saw blade has ground the surface B in the grinding device 7, the manipulator 6 puts the saw blade from the grinding device 7 into the blade turning device 3, and the blade turning device 3 turns the saw blade 180 degrees again, so that the other surface A to be processed of the saw blade is on the upper side;

[0078] 8) The flipped saw blade enters the cleaning device 4 again for cleaning;

[0079] 9) After cleaning, the saw blade enters the weighing and positioning device 5, which positions and weighs the saw blade to facilitate the manipulator 6 to transport the saw blade and determine the processing amount of the saw blade;

[0080] 10), the robot 6 sends the weighed saw blade to the grinding device 7 again to grind another surface A;

[0081] 12), after the saw blade has ground another surface in the grinder 38, the manipulator 6 puts the saw blade from the grinding device 7 back into the blade turning device 3;

[0082] 13), the flipped saw blade enters the cleaning device 4 again for cleaning;

[0083] 14), the cleaned saw blade enters the weighing and positioning device 5, which positions and weighs the saw blade to facilitate the robot 6 to transport the saw blade and determine whether the thickness of the saw blade meets the processing requirements. If so, the robot 6 will transport the saw blade to the finished product area. If not, the robot 6 will transport the saw blade back to the grinding device 7 for grinding until it meets the processing requirements.

Claims

1. An automatic surface grinding production line, characterized in that: It comprises a feeding device (1), a grinding device (2), a sheet turning device (3), a cleaning device (4) and a weighing and positioning device (5) which are arranged in sequence, and also comprises a manipulator (6) and a grinding device (7); It also includes a material preparation device (8), wherein the material preparation device (8) includes at least one material preparation support table (9); The loading device (1) comprises a lifting platform (10), a transfer device and a detection device (11); the bottom of the lifting platform (10) is connected to the lifting device installed on a frame (12); a stopper (13) is installed on the frame (12) outside the lifting platform (10); the transfer device comprises a transverse moving platform (14); the transverse moving platform (14) is installed on the frame (12) and moves transversely relative to the frame (12); a loading suction cup (15) is installed on the lower side of the transverse moving platform (14) and can move up and down relative to the transverse moving platform (14); The grinding device (2) comprises a rotating motor (16) and a cleaning and cooling device mounted on a frame (12); a rotating platform (17) is mounted on the upper side of the rotating motor (16); the rotating motor (16) drives the rotating platform (17) to rotate; a retaining ring (18) is arranged on the outer side of the rotating platform (17); a first grinding member (19) is mounted on the lower side of the transverse platform (14) and can move up and down relative to the transverse platform (14); the cleaning and cooling device comprises a cleaning water pipe (20); the cleaning water pipe (20) is connected to a grinding water tank (53) via a water pump; and a first funnel (22) is mounted on the bottom of the rotating platform (17); The flap turning device (3) comprises a rotating shaft (27) and a driving member mounted on a frame, a rotating suction cup (24) being mounted on the rotating shaft (27), and the rotating shaft (27) being connected to the driving member; The cleaning device (4) comprises a water spraying cover (29), a conveying device (30), a sponge roller and a cleaning water tank (21), wherein the conveying device (30) passes through the water spraying cover (29), a water spraying pipe (31) is installed in the water spraying cover (29), a second funnel (32) is arranged at the lower side of the water spraying cover (29), the water spraying pipe (31) is connected to the cleaning water tank (21) via a water pump, and the sponge roller is located at one side of the cleaning water tank (21) and comprises an upper sponge roller (33) and a lower sponge roller (34); The weighing and positioning device (5) comprises a positioning mechanism, a weighing mechanism and a conveying device (30); The positioning mechanism comprises a power member, a front baffle (35) and side baffles (36) on both sides, the power member is connected to a third gear (48), the power member drives the third gear (48) to rotate, the lower side of the front baffle (35) is connected to a transverse rack (49) matched with the third gear (48), the third gear (48) drives the front baffle (35) to move transversely through the transverse rack (49), the lower side of the side baffle (36) is connected to a longitudinal rack (50) matched with the third gear (48), the longitudinal racks (50) on the side baffles (36) on both sides are respectively on both sides of the gear, and the third gear (48) drives the side baffles (36) on both sides to move longitudinally through the longitudinal racks (50) on both sides.

2. The automatic surface grinding production line according to claim 1 is characterized in that: The robot (6) is a 6-axis robot.

3. The automatic surface grinding production line according to claim 1 is characterized in that: The grinding device (7) comprises at least one grinding machine (38).

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