Automatic machining system for steel surface pretreatment

Abstract

The invention relates to the technical field of steel surface grinding, in particular to an automatic machining system for steel surface pretreatment, which comprises a rack, a first grinding disc is arranged above the rack, a first grinding sheet is arranged at the bottom of the first grinding disc, and a first clamping assembly is further arranged on the first grinding disc; a second grinding disc is further arranged on the rack, a second grinding piece is arranged on the top face of the second clamping assembly, and a second clamping assembly is further arranged on the top face of the second grinding disc. According to the bearing gasket grinding device, when the top face of a bearing gasket is ground through the first grinding disc, the inner side wall of the bearing gasket is clamped through a second clamping assembly on the second grinding disc, and when the bottom face of the bearing gasket is ground through the second grinding disc, the outer side wall of the bearing gasket is clamped through a first clamping assembly on the first grinding disc; the top face and the bottom face of the bearing gasket can be polished without turning over the bearing gasket, and the polishing efficiency of the bearing gasket is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel surface grinding, in particular to an automatic processing system for steel surface pretreatment. Background Art

[0002] Bearings are common components used in a wide range of applications, both in production and everyday life. Bearing washers are often used during bearing installation. These thin, circular metal sheets are installed between the bearing's inner ring and the equipment's support. They support the bearing, adjust clearances, and provide cushioning and shock absorption. They play a crucial role in extending the bearing's service life and ensuring its stability during operation.

[0003] Bearing gaskets usually need to undergo surface grinding pretreatment before they are installed after production is completed. Traditional bearing gasket grinding is generally done manually by holding the bearing gasket in one hand and sandpaper in the other hand, or by clamping the bearing gasket with a fixture and then grinding it manually with sandpaper or a handheld grinding device. With the advancement of the times, the degree of automation of equipment is getting higher and higher. In order to improve the surface grinding efficiency of bearing gaskets, equipment specifically for grinding bearing gaskets has also been developed in the prior art. For example, the Chinese invention patent with application number: CN202411167309.X, entitled "A Bearing Gasket Grinding and Polishing Device", has developed a device for automatically grinding bearing gaskets, which includes a polishing bracket and a bottom surface grinding mechanism. The polishing bracket is provided with a clamping and rotating mechanism, the clamping and rotating mechanism is provided with an inner diameter grinding mechanism, the clamping and rotating mechanism is provided with a bearing gasket, the clamping and rotating mechanism includes a clamping cylinder and a clamping cylinder drive motor, the clamping cylinder is provided with a wire groove, and the wire groove is wound with a wire coil group. After the bearing gasket is clamped by the clamping tube, the clamping rotation mechanism is rotated inside the polishing bracket, so that the bottom side of the bearing gasket is polished by the bottom surface polishing mechanism, and the inner diameter of the bearing gasket is polished by the inner diameter polishing mechanism, thereby improving the polishing efficiency and polishing quality.

[0004] However, whether the surface of the bearing gasket is polished manually or the bearing gasket is polished using the polishing device designed by the above invention, the same problem will be encountered, that is, when the bearing gasket is fixed on the fixture, one of the planes of the bearing gasket will be blocked by the fixture. Therefore, after one side of the bearing gasket is polished, the bearing gasket needs to be turned over from the fixture in order to polish the side of the bearing gasket blocked by the fixture. Although the above invention improves the polishing efficiency of the bearing gasket compared to manual polishing of the bearing gasket, it still needs to turn the bearing gasket over during operation in order to fully polish the bearing gasket. The turning over step of the bearing gasket will also affect the polishing efficiency of the bearing gasket. Therefore, there is still a lot of room for optimization in the automatic polishing of bearing gaskets.

[0005] To this end, an automatic processing system for steel surface pretreatment is proposed to solve the problem of bearing gaskets needing to be turned over during grinding and improve the grinding efficiency of bearing gaskets. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic processing system for steel surface pretreatment, which solves the problem of bearing gaskets needing to be turned over during the grinding process and improves the grinding efficiency of the bearing gaskets.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An automatic processing system for steel surface pretreatment, comprising a frame, a first grinding disc for grinding the top surface of a bearing gasket is arranged above the frame, a first grinding sheet is arranged at the bottom of the first grinding disc, a first driving motor is also arranged on the frame for driving the first grinding disc to rotate, and a first clamping assembly for clamping the outer wall of the bearing gasket is also arranged on the first grinding disc; a second grinding disc for grinding the bottom surface of the bearing gasket is also arranged on the frame, the second grinding disc is arranged directly below the first grinding disc, a second grinding sheet is arranged on the top surface of the second clamping assembly, and a second clamping assembly for clamping the inner wall of the bearing gasket is also arranged on the top surface of the second grinding disc, and a second driving motor for driving the second grinding disc to rotate is also provided on the frame.

[0009] The bearing washer is placed on the top surface of the second grinding disc. When the first grinding disc is grinding the top surface of the bearing washer, the second clamping assembly on the second grinding disc clamps the inner side wall of the bearing washer to prevent the bearing washer from rotating. In this way, the first grinding disc on the first grinding disc can grind the top surface of the bearing washer under the drive of the first drive motor.

[0010] After the top surface of the bearing washer is polished, the first drive motor stops the first grinding disc. The first clamping assembly then tightens the outer wall of the bearing washer, while the second clamping assembly loosens its grip on the inner wall. At this point, the second drive motor rotates the second grinding disc, and the second grinding disc on the second grinding disc begins polishing the bottom of the bearing washer. This allows the top and bottom surfaces of the bearing washer to be polished without turning the bearing washer over, improving polishing efficiency.

[0011] The top of the second gear is fixedly provided with a toothed plate, and the bottom of the toothed plate is fixedly provided with a toothed plate, and the toothed plate is fixedly provided with a toothed plate.

[0012] The use of an annular airbag to clamp the outer wall of the bearing washer has a simpler structure and lower control and manufacturing costs than mechanical methods, helping to reduce production costs. Furthermore, the airbag remains deflated when not in use, helping to save equipment volume.

[0013] The electric cylinder pushes the second grinding disc and the bearing washer on it toward the first grinding disc. After the extrusion block contacts the bottom of the first grinding disc, it slides into the chute under the pressure of the first grinding disc, pushing the return spring into compression. As the extrusion block slides into the chute, it pushes the connecting rod, which in turn pushes the clamping block horizontally toward the outside of the through-hole and expands from the inner hole of the bearing washer, allowing the clamping block to clamp the bearing washer from the inner hole.

[0014] When grinding the bearing gasket, the top surface of the bearing gasket must be in contact with the bottom surface of the grinding disc. In this way, the bearing gasket is clamped by using the electric cylinder to drive the bearing gasket toward the bottom of the first grinding disc, which reduces the control cost required for the second clamping assembly and improves the synchronization between the second clamping assembly, the electric cylinder, and the first grinding disc. When grinding the bearing gasket, while ensuring that the top surface of the bearing gasket can stably contact the first grinding disc on the bottom surface of the first grinding disc, ensure that the second clamping assembly can clamp the bearing gasket from the inner hole of the bearing gasket. This ensures the stability of the equipment during operation. And using the extension and contraction of the clamping block to clamp the bearing gasket from the inner hole of the bearing gasket helps to reduce the volume of the second clamping assembly, and prevents the second clamping assembly from interfering with the grinding of the bearing gasket due to its excessive volume when grinding the bearing gasket.

[0015] When grinding the bottom surface of a bearing washer, the second grinding disc and the bearing washer can rotate relative to each other to grind the bottom surface of the bearing washer by simply ensuring that the clamping force of the first clamping assembly on the outer wall of the bearing washer is greater than the clamping force of the second clamping assembly on the inner wall of the bearing washer. This can be achieved by increasing the internal air pressure of the airbag or by controlling the electric cylinder to drive the second grinding disc downward to reduce the pressure of the second clamping assembly on the inner wall of the bearing washer.

[0016] Preferably, the inner ring of the airbag is also provided with an outer ring grinding sheet for grinding the outer side wall of the bearing gasket; the end of the clamping block away from the extrusion block is provided with an inner ring grinding sheet for grinding the inner side wall of the bearing gasket.

[0017] An outer grinding disc is installed on the inner ring of the airbag. When the first grinding disc is grinding the top surface of the bearing washer, the airbag rotates along with the first grinding disc, and the outer grinding disc on the airbag can grind the outer wall of the bearing washer at the same time, which helps to improve the grinding efficiency.

[0018] Similarly, as the second grinding disc rotates and grinds the bottom surface of the bearing washer, the inner ring grinding disc on the extrusion block also rotates with the second grinding disc and grinds the inner sidewall of the bearing washer. In this way, by the time the first and second grinding discs have finished grinding the top and bottom surfaces of the bearing washer, respectively, the entire bearing washer has been fully polished. This further reduces grinding time and improves grinding efficiency.

[0019] Preferably, the inner ring sidewall of the airbag is provided with an interlayer, within which multiple pressure sensors are disposed. The multiple pressure sensors are evenly distributed around the airbag, with the airbag axis as the reference circumference. The pressure sensors help determine the pressure between the airbag and the outer wall of the bearing gasket, making it easier for workers to adjust the internal air pressure of the airbag, facilitating equipment debugging and improving the ease of use of the equipment. This prevents the second grinding disc from being unable to rotate relative to the bearing gasket when grinding the bottom surface of the bearing gasket, thereby ensuring the stability of the equipment.

[0020] Preferably, there are multiple first grinding discs, all of which are strip-shaped. The multiple first grinding discs are evenly distributed on the bottom of the first grinding disc with the axis of the annular sleeve as the reference circumference and are star-shaped as a whole. A storage space for accommodating metal debris from grinding is formed between two first grinding discs. After being ground and scraped off by the first grinding disc, the debris on the bearing gasket can enter the storage space, preventing the debris from continuously accumulating between the first grinding disc and the surface of the bearing gasket after being ground off, and preventing the upper surface of the bearing gasket from being scratched by the debris again. This improves the grinding effect of the bearing gasket.

[0021] Preferably, the first grinding sheet is provided with a plurality of chip discharge ports corresponding to the plurality of accommodating spaces, and the first grinding sheet is also provided with a plurality of exhaust valves corresponding one to one to the chip discharge ports, the exhaust valves are all connected to the airbag, and each exhaust valve is arranged from top to bottom toward the chip discharge port.

[0022] After the bearing gasket is fully polished, when the polished bearing gasket is removed, the airbag needs to be exhausted to loosen the polished bearing gasket. At this time, the exhaust valve will open, and the exhaust valve will discharge the gas inside the airbag to the outside of the airbag to relieve pressure, allowing the airbag to return to a deflated state, making it easier to remove the bearing gasket from the equipment. When the exhaust valve discharges the gas from the airbag, it will discharge the gas in the direction of the chip removal port. These gases form an airflow and pass through the chip removal port to blow toward the top surface of the bearing gasket, making it easier to blow away the debris polished off the top surface of the bearing gasket, so that the polished bearing gasket remains clean and the waste gas is utilized. In addition, after the airflow hits the top surface of the bearing gasket, part of the airflow will also blow toward the first polishing sheet, which will help to clean the first polishing sheet to ensure the polishing effect of the first polishing sheet.

[0023] Preferably, a spring groove is horizontally opened at the end of the clamping block away from the slide groove, an abutment block is horizontally slidably installed in the spring groove, a push spring is provided inside the spring groove, and the push spring is used to push the abutment block horizontally toward the outside of the spring groove, and the inner ring grinding plate is provided at the end of the abutment block away from the slide groove.

[0024] The setting of the pushing spring and the abutment block ensures that when the electric cylinder drives the second grinding disc to move downward to reduce the pressure of the clamping block on the bearing gasket, the inner ring grinding disc can be abutted against the inner wall of the bearing gasket, avoiding the situation where the inner ring grinding disc cannot contact the inner wall of the bearing gasket when the electric cylinder drives the second grinding disc to move downward a little too far. This helps to reduce the control accuracy required by the electric cylinder, reduce the control cost, and also improve the stability of equipment operation.

[0025] When it is necessary to clamp the inner wall of the bearing gasket from the inner hole of the bearing gasket, the abutment block is squeezed toward the inside of the spring groove through the connecting rod and the inner wall of the bearing gasket, making the push spring unable to be compressed, and the bearing gasket can also be clamped from the inner wall of the bearing gasket.

[0026] Preferably, a receiving groove is further provided on the top surface of the second grinding disc, a slider is slidably installed inside the receiving groove, a receiving spring is provided between the slider and the bottom of the receiving groove, the receiving spring is used to keep the slider pushed upward out of the receiving groove, and the second grinding disc is provided on the top surface of the slider.

[0027] When the electric cylinder drives the second grinding disc to move downward to reduce the pressure of the clamping block on the bearing gasket, the storage spring can push the second grinding disc on the top surface of the slider toward the bottom surface of the bearing gasket, ensuring that the second grinding disc and the bottom surface of the bearing gasket can be in stable contact, ensuring the grinding stability of the bottom surface of the bearing gasket, and ensuring the use effect of the equipment.

[0028] Preferably, the second grinding disc further comprises a chip removal groove extending vertically through the second grinding disc. The chip removal groove facilitates the removal of chips removed from the bottom surface of the bearing washer from the second grinding disc, thereby preventing the chips removed from the bottom surface of the bearing washer from affecting the grinding effect of the second grinding disc.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention is an automatic processing system for steel surface pretreatment, which is designed by setting a first grinding disc and a second grinding disc, and respectively setting a first clamping assembly and a second clamping assembly on the first grinding disc and the second grinding disc, so that when the first grinding disc grinds the top surface of the bearing gasket, the second clamping assembly on the second grinding disc clamps the inner wall of the bearing gasket, and when the second grinding disc grinds the bottom surface of the bearing gasket, the first clamping assembly on the first grinding disc clamps the outer wall of the bearing gasket, thereby achieving the goal of grinding the top and bottom surfaces of the bearing gasket without flipping the bearing gasket, thereby improving the grinding efficiency of the bearing gasket.

[0031] 2. The automatic processing system designed by the present invention for the surface pretreatment of steel is also provided with an outer ring grinding sheet on the inner ring of the airbag of the first clamping component, so that when the first grinding disc is grinding the top surface of the bearing gasket, it can use the outer ring grinding sheet to grind the outer side wall of the bearing gasket at the same time, and the clamping block of the second clamping component is also provided with an inner ring grinding sheet, so that when the second grinding sheet is grinding the bottom surface of the bearing gasket, it can also use the inner ring grinding sheet to grind the inner ring side wall of the bearing gasket at the same time, thereby further improving the grinding efficiency.

[0032] 3. The automated processing system for steel surface pretreatment designed by the present invention is also equipped with multiple exhaust ports and multiple exhaust valves. Exhaust gas discharged during airbag decompression is used to clean the first grinding wheel and the top surface of the polished bearing gasket. This reduces the difficulty of cleaning the bearing gasket after polishing, helps keep the first grinding wheel clean, and thus ensures the polishing effect of the bearing gasket. Furthermore, using the exhaust gas discharged by the airbag for cleaning also helps save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2It is a front view of the present invention;

[0035] Figure 3 Schematic diagram of the internal structure of the present invention;

[0036] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0038] Figure 6 This is a schematic diagram of the state in which the bearing gasket is clamped by the clamping block against the inner ring side wall in the present invention;

[0039] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle;

[0040] Figure 8 For the present invention Figure 6 Enlarged view of point D in the middle;

[0041] Figure 9 Schematic diagram of the three-dimensional structure of the first grinding disc in the present invention;

[0042] Figure 10 A bottom view of the first grinding disc of the present invention;

[0043] Figure 11 It is a schematic diagram of the three-dimensional structure of the second grinding disc in the present invention.

[0044] In the figure: 1. frame; 2. first grinding disc; 3. first grinding sheet; 4. first drive motor; 5. second grinding disc; 6. second grinding sheet; 7. second drive motor; 8. annular sleeve; 9. airbag; 10. air pump; 11. electric cylinder; 12. boss; 13. slide; 14. extrusion block; 15. return spring; 16. through hole; 17. clamping block; 18. connecting rod; 19. outer ring grinding sheet; 20. inner ring grinding sheet; 21. interlayer; 22. pressure sensor; 23. accommodating space; 24. chip discharge port; 25. exhaust valve; 26. spring groove; 27. abutment block; 28. push spring; 29. ​​receiving groove; 30. slider; 31. receiving spring; 32. chip discharge groove; 33. sliding platform; 34. bearing gasket. DETAILED DESCRIPTION

[0045] See also Figures 1 to 11 The present invention provides an automatic processing system for steel surface pretreatment, and the technical solution is as follows:

[0046] An automatic processing system for steel surface pretreatment, reference Figure 1 、 Figure 2 、 Figure 9 as well as Figure 10 The machine comprises a frame 1, above which is disposed a first grinding disc 2 for grinding the top surface of a bearing gasket 34. The first grinding disc 2 is circular, and four first grinding pieces 3 are disposed at the bottom of the first grinding disc 2. The first grinding pieces 3 are all strip-shaped and are evenly distributed around the bottom of the first grinding disc 2 with the axis of the annular sleeve 8 as the reference circumference. The four first grinding pieces 3 form a star-shaped overall shape. A receiving space 23 is formed between two adjacent first grinding pieces 3 to accommodate metal debris produced by grinding.

[0047] refer to Figure 2 、 Figure 3 、 Figure 6 as well as Figure 7 The frame 1 is also provided with a first drive motor 4 for driving the first grinding disc 2 to rotate. The output end of the first drive motor 4 is arranged vertically downward, and the first grinding disc 2 is horizontally fixed to the output end of the first drive motor 4. The first grinding disc 2 is also provided with a first clamping assembly for clamping the outer wall of the bearing gasket 34; the first clamping assembly includes an annular sleeve 8 fixedly mounted on the bottom of the first grinding disc 2, an annular airbag 9 is provided on the inner wall of the annular sleeve 8, and an outer ring grinding sheet 19 for grinding the outer wall of the bearing gasket 34 is also provided on the inner ring of the airbag 9. An interlayer 21 is provided inside the inner ring sidewall of the airbag 9, and a plurality of pressure sensors 22 are provided inside the interlayer 21. The plurality of pressure sensors 22 are evenly distributed on the airbag 9 with the axis of the airbag 9 as the reference circumference. An air pump 10 for inflating the airbag 9 is provided on the top of the first grinding disc 2.

[0048] refer to Figure 9 and Figure 10 The first grinding plate 3 is also provided with multiple chip discharge ports 24 corresponding to the multiple accommodating spaces 23. The first grinding plate 3 is also provided with multiple exhaust valves 25 corresponding to the chip discharge ports 24 one by one. The exhaust valves 25 are all connected to the airbag 9, and each exhaust valve 25 is arranged from top to bottom toward the chip discharge port 24.

[0049] refer to Figure 2 、 Figure 4 、 Figure 5 as well as Figure 11The frame 1 is also provided with a second grinding disc 5 for grinding the bottom surface of the bearing gasket 34. The second grinding disc 5 is circular and is arranged directly below the first grinding disc 2. Two receiving grooves 29 are also provided on the top surface of the second grinding disc 5. The two receiving grooves 29 are located on the same diameter of the second grinding disc 5. Slide blocks 30 are slidably installed inside the receiving grooves 29. A receiving spring 31 is provided between the slider 30 and the bottom of the receiving groove 29. The receiving spring 31 is used to keep the slider 30 pushed upward out of the receiving groove 29. The second grinding disc 6 is fixedly installed on the top surface of the slider 30. The top surface of the second grinding disc 5 is also provided with a second clamping assembly for clamping the inner sidewall of the bearing washer 34. The second clamping assembly includes an electric cylinder 11 for driving the second grinding disc 5 to move up and down. The output end of the electric cylinder 11 faces the first grinding disc 2. A sliding platform 33 is fixedly mounted on the output end of the electric cylinder 11. The sliding platform 33 is fixedly mounted on the second drive motor 7. The second grinding disc 5 is fixedly mounted on the output end of the second motor parallel to the first grinding disc 3, and the side of the second grinding disc 5 with the receiving groove 29 faces the first grinding disc 2. A cylindrical boss 12 is fixedly mounted on the top surface of the second grinding disc 5, and the axis of the boss 12 coincides with the axis of the annular sleeve 8. A vertical slot 13 is formed at the top of the annular boss 12. An extrusion block 14 is slidably mounted within the slot 13. A return spring 15 is disposed between the bottom of the slot 13 and the extrusion block 14. The return spring 15 is used to keep the extrusion block 14 pushed toward the outside of the slot 13. Two through-holes 16 are horizontally formed on the boss 12, extending through the sidewall of the boss 12. The two through-holes 16 are symmetrically arranged about the slot 13, and the two through-holes 16 and the two receiving slots 29 are not aligned. A clamping block 17 is slidably mounted within each through-hole 16. A connecting rod 18 is disposed between each clamping block 17 and the extrusion block 14. One end of the connecting rod 18 is rotatably connected to the bottom of the extrusion block 14, while the other end of the connecting rod 18 is rotatably connected to the end of the clamping block 17 facing the slot 13. The end of the clamping block 17 away from the slide groove 13 is horizontally provided with a spring groove 26, and an abutment block 27 is horizontally slidably installed in the spring groove 26. The abutment block 27 is "T"-shaped. After the "T"-shaped abutment block 27 is placed, it is horizontally inserted into the spring groove 26. A push spring 28 is provided inside the spring groove 26. The push spring 28 is used to push the abutment block 27 horizontally toward the outside of the spring groove 26. The end of the abutment block 27 away from the slide groove 13 is fixedly installed with an inner ring grinding sheet 20. The inner ring grinding sheet 20 is arranged in a vertical state, and the bottom of the inner ring grinding sheet 20 is in contact with the top surface of the second grinding disk 5. When the bearing gasket 34 of the inner ring grinding sheet 20 is placed flat on the second grinding disk 5, the top of the inner ring grinding sheet 20 is higher than the bearing gasket 34 by the thickness of the first grinding sheet 3.

[0050] In addition, reference Figure 11The second grinding disc 5 is further provided with two chip removal grooves 32, and the two chip removal grooves 32 vertically penetrate the second grinding disc 5. The two chip removal grooves 32 are respectively located in front of the two receiving grooves 29 in the rotation direction.

[0051] When using, refer to Figures 1 to 3 as well as Figure 11 , the electric cylinder 11 controls the sliding platform 33 to move downward, the bearing gasket 34 is placed horizontally on the second grinding disc 5, and the boss 12 passes through the inner hole of the bearing gasket 34. At this time, under the weight of the bearing gasket 34, the slider 30 is squeezed and stored inside the storage groove 29, and the storage spring 31 is compressed. Then start the electric cylinder 11, and the electric cylinder 11 drives the sliding platform 33, the second drive motor 7, and the second grinding disc 5 to move upward together, sending the bearing gasket 34 toward the bottom of the first grinding disc 2. As the second grinding disc 5 gradually moves toward the bottom surface of the first grinding disc 2, the extrusion block 14 will eventually abut against the first grinding disc 2, and as the bearing gasket 34 continues to move toward the first grinding disc 2, it is continuously squeezed into the slide groove 13, and the reset spring 15 is compressed.

[0052] When the extrusion block 14 slides toward the inside of the chute 13, Figures 2 to 8 , the two connecting rods 18 respectively drive the two clamping blocks 17 to move horizontally and make the two blocks extend horizontally out of the through hole 16 in the direction away from the slide groove 13. When the top surface of the bearing gasket 34 abuts the bottom surface of the first grinding plate 3, the extension of the electric cylinder 11 stops. At this time, the second grinding plate 6 is in squeeze contact with the side wall of the inner hole of the bearing gasket 34, pushing the spring 28 to be fully compressed, and the return spring 15 cannot push the squeezing block 14 out of the slide groove 13. In this way, the bearing gasket 34 is clamped from its inner hole. The air pump 10 then starts to inflate the airbag 9 until the pressure sensor 22 detects a pressure of 3N, and then stops the air pump 10.

[0053] Afterwards, refer to Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 as well as Figure 10 The first drive motor 4 drives the first grinding disc 2 to begin rotating, and the first grinding disc 3 on the first grinding disc 2 begins grinding the top surface of the bearing washer 34. The grinding debris is driven by the rotation of the first grinding disc 3 into the accommodating space 23. A portion of the debris is directly discharged from the annular sleeve 8 through the chip discharge opening 24. While the first grinding disc 3 is grinding the top surface of the bearing washer 34, the outer grinding disc 19 on the inner sidewall of the airbag 9 is also grinding the outer sidewall of the bearing washer 34.

[0054] After grinding the top surface and outer side wall of the bearing washer 34, refer to Figure 6 and Figure 7, the air pump 10 is controlled to inflate the airbag 9 again until the pressure sensor 22 detects a pressure of 8N. The electric cylinder 11 is then controlled to drive the second grinding disc 5 downward by a distance equal to the thickness of the first grinding disc 3. At this point, driven by the return spring 15, the extrusion block 14 is pushed toward the outside of the chute 13, while the connecting rod 18 pulls the clamping block 17 along the through hole 16 toward the chute 13 for a distance. The push spring 28, under its own elastic force, constantly presses the inner ring grinding disc 20 toward the inner ring sidewall of the bearing washer 34, ensuring that the inner ring grinding disc 20 is tightly attached to the inner ring sidewall of the bearing washer 34. At this time, because the distance the electric cylinder 11 drives the second grinding disc 5 to move downward is the same as the thickness of the first grinding disc 3, and the top of the inner ring grinding disc 20 is higher than the bearing washer 34 by the thickness of the first grinding disc 3, the inner ring grinding disc 20 can just completely cover the height of the inner ring side wall of the bearing washer 34 when following the first grinding disc 2 downward movement, ensuring that the inner ring grinding disc 20 can completely grind the inner ring side wall of the bearing washer 34. Moreover, when the first grinding disc 3 grinds the top surface of the bearing washer 34, the inner ring grinding disc 20 will not interfere with the first grinding disc 2.

[0055] At the same time, refer to Figure 11 Under the action of the receiving spring 31 , the slider 30 is pushed out of the receiving groove 29 in the direction of the first grinding disc 2 , and the second grinding disc 6 always remains in contact with the bottom of the bearing washer 34 .

[0056] Then, refer to Figures 4 to 8 as well as Figure 11 The second drive motor 7 drives the second grinding disc 5 to begin rotating, while the airbag 9 clamps the outer wall of the bearing washer 34, preventing it from rotating. The second grinding disc 6 can then scrape and grind the bottom surface of the bearing washer 34. The debris scraped off by the second grinding disc 6 from grinding the bottom of the bearing washer 34 will fall onto the second grinding disc 5. Since the top surface of the second grinding disc 5 is not in contact with the bottom surface of the bearing washer 34 at this time, this debris will not affect the grinding of the bottom surface of the bearing washer 34. Some of the debris that falls onto the second grinding disc 5 will fall from the chip discharge groove 32 as the second grinding disc 5 rotates, preventing debris from accumulating on the second grinding disc 5. At the same time, the inner ring grinding disc 20 is also grinding the inner ring sidewall of the bearing washer 34.

[0057] refer to Figure 1 、 Figure 6 、 Figure 7 、 Figure 9 as well as Figure 10When the bottom surface of the bearing gasket 34 and the inner ring sidewall are also polished, the second drive motor 7 stops rotating. Then, multiple exhaust valves 25 are opened simultaneously, and the pressurized gas inside the airbag 9 is ejected downward from the multiple exhaust valves 25 toward the chip discharge port 24. The airflow passes through the exhaust port and impacts the top of the bearing gasket 34 inside the annular sleeve 8, blowing the debris polished off the top of the bearing gasket 34 away from the chip discharge port 24, reducing the difficulty of cleaning the bearing gasket 34 after polishing. In addition, the airflow blown out by the exhaust valve 25 will also clean the first polishing disc 3 to ensure the polishing effect of the first polishing disc 3 on the subsequent bearing gasket 34.

[0058] refer to Figures 5 to 8 Since the gas inside the airbag 9 is discharged from the airbag 9 through the exhaust valve 25, the airbag 9 returns to a deflated state and is unable to support the bearing gasket 34. The bearing gasket 34 falls back to the top surface of the second grinding disc 5. The slider 30 is retracted into the recycling groove 29 under the pressure of the gravity of the bearing gasket 34. Subsequently, the control electric cylinder 11 drives the sliding platform 33 to move downward. Since the extrusion block 14 is no longer squeezed by the first grinding disc 2, the extrusion block 14 is pushed out of the chute 13 under the action of the reset spring 15, and the clamping block 17 is further moved along the through hole 16 toward the chute 13 under the pull of the connecting rod 18. The pressure of the inner ring grinding disc 20 on the inner ring side wall of the bearing gasket 34 is further reduced, making it easier for workers to remove the polished bearing gasket 34 from the second grinding disc 5.

[0059] At this point, the operation process of the entire equipment has ended. If another bearing washer 34 needs to be polished, it is only necessary to repeat the above steps.

[0060] A specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiment described above. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. An automatic processing system for steel surface pretreatment, comprising a frame (1), characterized in that: A first grinding disc (2) for grinding the top surface of the bearing gasket (34) is provided above the frame (1), a first grinding sheet (3) is provided at the bottom of the first grinding disc (2), a first driving motor (4) for driving the first grinding disc (2) to rotate is also provided on the frame (1), and a first clamping assembly for clamping the outer wall of the bearing gasket (34) is also provided on the first grinding disc (2); a second grinding disc (5) for grinding the bottom surface of the bearing gasket (34) is also provided on the frame (1), the second grinding disc (5) is provided directly below the first grinding disc (2), a second grinding sheet (6) is provided on the top surface of the second clamping assembly, and a second clamping assembly for clamping the inner wall of the bearing gasket (34) is also provided on the top surface of the second grinding disc (5), and a second driving motor (7) for driving the second grinding disc (5) to rotate is also provided on the frame (1).

2. The automatic processing system for steel surface pretreatment according to claim 1, characterized in that: The first clamping assembly includes an annular sleeve (8) fixedly mounted on the bottom of the first grinding disc (2), an annular air bag (9) is provided on the inner wall of the annular sleeve (8), and an air pump (10) for inflating the air bag (9) is provided on the top of the first grinding disc (2); the second clamping assembly includes an electric cylinder (11) for driving the second grinding disc (5) and the second drive motor (7) to move up and down, a cylindrical boss (12) is fixedly mounted on the top surface of the second grinding disc (5), a slide groove (13) is vertically opened on the top of the annular boss (12), an extrusion block (14) is slidably mounted inside the slide groove (13), and the bottom of the slide groove (13) is in contact with the extrusion block ( 14) is provided with a return spring (15), and the return spring (15) is used to keep the extrusion block (14) pushed toward the outside of the slide groove (13). Two through holes (16) are horizontally opened on the boss (12) and pass through the side wall of the boss (12). The two through holes (16) are symmetrically arranged with respect to the slide groove (13). A clamping block (17) is slidably installed inside the through holes (16). A connecting rod (18) is provided between each clamping block (17) and the extrusion block (14), and one end of the connecting rod (18) is rotatably connected to the bottom of the extrusion block (14), and the other end of each connecting rod (18) is rotatably connected to one end of the clamping block (17) toward the slide groove (13).

3. The automatic processing system for steel surface pretreatment according to claim 2, characterized in that: An outer ring grinding sheet (19) for grinding the outer side wall of the bearing gasket (34) is also provided on the inner ring of the airbag (9); and an inner ring grinding sheet (20) for grinding the inner side wall of the bearing gasket (34) is provided on the end of the clamping block (17) away from the extrusion block (14).

4. The automatic processing system for steel surface pretreatment according to claim 3, characterized in that: An interlayer (21) is provided inside the inner ring side wall of the airbag (9), and a plurality of pressure sensors (22) are provided inside the interlayer (21). The plurality of pressure sensors (22) are evenly distributed on the airbag (9) with the axis of the airbag (9) as a reference circumference.

5. The automatic processing system for steel surface pretreatment according to claim 2, characterized in that: There are a plurality of first grinding sheets (3), all of which are strip-shaped. The plurality of first grinding sheets (3) are evenly distributed on the bottom of the first grinding disc (2) with the axis of the annular sleeve (8) as the reference circumference and are star-shaped as a whole. A receiving space (23) for receiving metal debris produced by grinding is formed between two adjacent first grinding sheets (3).

6. The automatic processing system for steel surface pretreatment according to claim 5, characterized in that: The first grinding plate (3) is provided with a plurality of chip discharge openings (24) corresponding to the plurality of accommodating spaces (23). The first grinding plate (3) is also provided with a plurality of exhaust valves (25) corresponding one-to-one to the chip discharge openings (24). The exhaust valves (25) are all connected to the airbag (9), and each exhaust valve (25) is arranged from top to bottom in the direction of the chip discharge opening (24).

7. The automatic processing system for steel surface pretreatment according to claim 3, characterized in that: The clamping block (17) is provided with a spring groove (26) at one end away from the slide groove (13) in a horizontal direction. An abutting block (27) is installed in the spring groove (26) for horizontal sliding. A pushing spring (28) is provided inside the spring groove (26). The pushing spring (28) is used to push the abutting block (27) horizontally toward the outside of the spring groove (26). The inner ring grinding sheet (20) is provided at the end of the abutting block (27) away from the slide groove (13).

8. The automatic processing system for steel surface pretreatment according to claim 2, characterized in that: The top surface of the second grinding disc (5) is also provided with a receiving groove (29), a slider (30) is slidably installed inside the receiving groove (29), a receiving spring (31) is provided between the slider (30) and the bottom of the receiving groove (29), and the receiving spring (31) is used to keep the slider (30) pushed upward out of the receiving groove (29), and the second grinding sheet (6) is provided on the top surface of the slider (30).

9. The automatic processing system for steel surface pretreatment according to claim 2, characterized in that: The second grinding disc (5) is also provided with a chip removal groove (32), and the chip removal groove (32) vertically passes through the second grinding disc (5).

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