A cleaning device for a grinding machine

Abstract

The present invention relates to a cleaning device for a grinding machine, which comprises: a power device, including a cylinder gear and a driving mechanism; the cylinder gear is installed on the output shaft of the driving mechanism, and the driving mechanism is installed on the frame of the grinding machine; the first end of the rotating device is connected to the cylinder gear, and is driven by the cylinder gear to rotate; a height adjustment device, the first end of which is fixedly connected to the second end of the rotating device and can rotate with the rotating device; a spray angle adjustment device comprises a spray structure, a fastening screw and a nozzle base; the first end of the nozzle base is fixedly connected to the second end of the height adjustment device, and the height adjustment device drives the nozzle base to rotate and adjust the height; the second end of the nozzle base is provided with at least two spray structures through the fastening screw, and the spray directions of the spray structures are different. The present invention has a simple structure and a small volume, and can effectively improve the cleaning efficiency. The present invention can be applied in the field of ultra-precision machining.

Description

Technical Field

[0001] The invention relates to the technical field of ultra-precision machining, in particular to a cleaning device for a grinding machine. Background Art

[0002] In industrial production, especially in ultra-precision machining, grinders have high machining accuracy and a wide range of machining materials, and are widely used in all walks of life. During the grinding process, some fine debris will be ground off the workpiece. At the same time, the addition of grinding fluid will increase the friction during grinding, making the debris particles smaller and generating faster; on the other hand, the flow of grinding fluid will take away some of the debris to prevent excessive residue and scratches. However, the grinding fluid cannot take away all the debris. After the grinding machine is finished, there is still a part of the residual debris that is not washed away with the grinding fluid, but remains on the grinding disc, affecting the next processing. Therefore, it is necessary to add an additional cleaning device to thoroughly clean after the processing is completed, flush all the debris, and ensure the cleanliness and precision of the next processing.

[0003] The cleaning device in the prior art has some defects. The nozzle of the existing device moves linearly in the radial direction of the grinding disc, and a separate linear motion track needs to be set up, which occupies a large space, has a complex structure, and has a high manufacturing cost. In addition, it can only clean the position directly below the nozzle, and some dead corners are difficult to clean. The cleaning device in this patent can effectively solve the above problems and improve the processing efficiency of the equipment. Summary of the invention

[0004] In view of the above problems, an object of the present invention is to provide a cleaning device for a grinding machine, which has a simple structure, a small size and can effectively improve the cleaning efficiency.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cleaning device for a grinder, comprising: a power device, including a cylinder gear and a driving mechanism; the cylinder gear is installed on the output shaft of the driving mechanism, and the driving mechanism is installed on the frame of the grinder; a rotating device, a first end of which is connected to the cylinder gear and is driven by the cylinder gear to rotate; a height adjustment device, a first end of which is fixedly connected to the second end of the rotating device and can rotate with the rotating device; a spray angle adjustment device, including a spray structure, a fastening screw and a nozzle base; the first end of the nozzle base is fixedly connected to the second end of the height adjustment device, and the height adjustment device drives the nozzle base to rotate and adjust the height; the second end of the nozzle base is provided with at least two of the spray structures through the fastening screw, and the spray directions of the spray structures are different.

[0006] Furthermore, each of the fastening screws is provided with a spray structure, and each of the fastening screws adopts a stepped tube structure, and a cleaning liquid channel is provided inside the structure;

[0007] The fastening screw includes an integrally formed tail portion, a middle portion and a head portion with successively decreasing diameters; a first through hole for diversion is horizontally arranged in the middle portion, and the first through hole is connected to the inlet of the injection structure; a first internal thread is arranged in the cleaning liquid channel from the tail portion to the first through hole, and a first external thread is arranged on the outer side of the head portion, and the first external thread is matched with the first internal thread.

[0008] Furthermore, the injection structure in the injection angle adjustment device includes a nozzle seat cover, a nozzle and a cleaning nozzle seat; the cleaning nozzle seat is provided with a second through hole in the vertical direction, and the cleaning nozzle seat is sleeved on the outside of the fastening screw through the second through hole, and the second through hole is connected with the first through hole; the cleaning nozzle seat is provided with a first threaded hole in the horizontal direction, the first threaded hole is connected with the second through hole, and the nozzle is installed on the first threaded hole; the upper end of the cleaning nozzle seat is provided with a first sealing groove for installing a sealing ring; the nozzle seat cover is arranged at the tail of the fastening screw at the very end, and its cross-section adopts a T-shaped structure, and the vertical end of the T-shaped structure is provided with a second external thread matching the first internal thread.

[0009] Furthermore, the second through hole is a stepped hole which is thin in the middle and thick at both ends; the top thickness of the second through hole is not less than the thickness of the tail of the fastening screw, the height of the middle and lower parts of the second through hole is equal to the length of the middle part of the fastening screw, the diameter of the top of the second through hole is not less than the diameter of the tail of the fastening screw, and the diameter of the middle part of the second through hole is not less than the diameter of the middle part of the fastening screw.

[0010] Furthermore, a first hole for transmitting cleaning liquid is provided inside the nozzle base along its length direction, and the end of the first hole at the second end of the nozzle base is provided as a second threaded hole, which is connected to the first external thread of the fastening screw through the second threaded hole; a first countersunk hole perpendicular to and connected to the first hole is provided at the first end of the nozzle base, which is used for fixed connection with the second end of the height adjustment device; and a second sealing groove for installing a sealing ring is provided at the second end of the nozzle base.

[0011] Furthermore, the diameter of the first countersunk hole is larger than the diameter of the first hole; the diameter of the second threaded hole is the same as that of the first external thread, and the length of the first external thread is smaller than the length of the second threaded hole.

[0012] Further, the rotating device comprises: the cleaning shaft is a hollow shaft, the bottom of the first end of which is connected to the cleaning liquid storage device, and the cleaning liquid is transported from the bottom of the hollow shaft to the top of the hollow shaft; a keyless spur gear meshing with the cylinder gear is arranged on the first end, and the keyless spur gear can slide up and down on the first end of the cleaning shaft;

[0013] A bearing flange is arranged in the middle of the cleaning shaft, the outer side of which is used to connect with the frame, a shaft sleeve is arranged between the inner side and the cleaning shaft, the shaft sleeve is interference fit with the cleaning shaft, deep groove ball bearings are arranged at both ends of the shaft sleeve, and a skeleton oil seal is arranged on the upper part of the deep groove ball bearing at the upper end;

[0014] A protective cover is arranged in the middle of the cleaning shaft and above the bearing flange;

[0015] A locking nut is arranged on the cleaning shaft and is located below the bearing flange, and is used for positioning the cleaning shaft.

[0016] Furthermore, a vertical second hole is arranged along the length direction of the cleaning shaft, and the end of the second hole located at the first end of the cleaning shaft is arranged as a third threaded hole for connecting with the cleaning liquid storage device; a third sealing groove for installing a sealing ring is arranged circumferentially at the end of the second end of the cleaning shaft.

[0017] Furthermore, the gear ratio between the keyless spur gear and the cylinder gear determines the minimum rotation angle of the cleaning shaft. The larger the gear ratio, the larger the minimum rotation angle, and vice versa.

[0018] Furthermore, the height adjustment device includes an adapter cover; a third hole is provided inside the second end of the adapter cover, and a fourth hole connected to the third hole is provided inside the first end of the adapter cover; a fifth boss is provided outside the second end of the adapter cover, and the fifth boss is fixedly connected to the first countersunk hole on the nozzle base, and the third hole is provided corresponding to the first countersunk hole; the second end of the cleaning shaft in the rotating device extends into the fourth hole and can move up and down in the fourth hole to adjust the distance between the cleaning shaft and the adapter cover.

[0019] The present invention adopts the above technical solution, which has the following advantages:

[0020] 1. Compared with linear movement, the cleaning axis of the present invention adopts a rotating mode, which eliminates the installation of linear guide rails, saves space and manufacturing costs, expands the cleaning range of the nozzle, and improves work efficiency.

[0021] 2. The cleaning nozzle seat of the present invention rotates around its own axis, so that the spray angle of the nozzle changes, and can clean difficult-to-clean locations, thereby improving cleanliness.

[0022] 3. The present invention can freely stack the cleaning nozzle seats according to actual conditions, thereby changing the number of nozzles, meeting the needs under different working conditions and improving the practicality of the device.

[0023] 4. The height of the nozzle can be changed by only adjusting the connection distance between the adapter cover and the cleaning shaft, which is simple, convenient and fast to operate.

[0024] 5. The cleaning device of the present invention is provided with sealing grooves at multiple locations, and has good sealing performance.

[0025] 6. The space formed between the adapter cover and the cleaning shaft of the present invention increases the pressure, resulting in an increase in the outlet speed of the cleaning liquid, thereby improving the cleaning effect of the device. In addition, it also has a certain throttling effect.

[0026] 7. The cleaning device of the present invention has a simple structure, and is characterized by small overall volume and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a partial cross-sectional view of a cleaning device for a grinding machine according to an embodiment of the present invention;

[0028] Figure 2 is an overall schematic diagram of a cleaning device for a grinding machine in one embodiment of the present invention;

[0029] Figure 3 is a partial cross-sectional view of the end of a cleaning device of a grinding machine according to one embodiment of the present invention;

[0030] Figure 4a is a schematic diagram of a nozzle fastening screw in one embodiment of the present invention;

[0031] Figure 4b yes Figure 4a AA section view;

[0032] Figure 5a is a schematic diagram of a cleaning nozzle seat in one embodiment of the present invention;

[0033] Figure 5b yes Figure 5a AA section view;

[0034] Figure 6a is a schematic diagram of a nozzle seat cover in one embodiment of the present invention;

[0035] Figure 6b yes Figure 6a AA section view;

[0036] Figure 7a is a schematic diagram of a nozzle base in one embodiment of the present invention;

[0037] Figure 7b yes Figure 7a AA section view;

[0038] Figure 8a is a schematic diagram of a cleaning shaft in one embodiment of the present invention;

[0039] Figure 8b yes Figure 8a AA section view;

[0040] Figure 9a It is a schematic diagram of the overall structure of the adapter cover in one embodiment of the present invention;

[0041] Figure 9b yes Figure 9a CC section view;

[0042] Fig.9c is a schematic diagram of the three-dimensional structure of the adapter cover in one embodiment of the present invention;

[0043] Fig.10a is a schematic diagram of a bearing flange in one embodiment of the present invention;

[0044] Fig.10b yes Fig.10a AA section view;

[0045] Fig.11 is a schematic diagram of the position relationship of the cleaning device in one embodiment of the present invention;

[0046] Fig.12 is a schematic top view of a cleaning device in one embodiment of the present invention;

[0047] Reference numerals:

[0048] 1. Nozzle seat cover, 2. Nozzle nozzle, 3. Cleaning nozzle seat, 4. Fastening screw, 5. Nozzle base, 6. Adapter cover, 7. Cleaning shaft, 8. Protective cover, 9. Skeleton oil seal, 10. Deep groove ball bearing, 11. Bearing flange, 12. Locking nut, 13. Bushing, 14. Keyless spur gear, 15. Cylinder gear, 16. Swing cylinder, 17. Second external thread, 18. First threaded hole, 19. First external thread, 20. First internal thread, 21. First through hole, 22. Tail, 23. Middle, 24. Head, 25. Second through hole, 26. First seal slot, 27 second threaded hole, 28 first hole, 29 first countersunk hole, 30 second sealing slot, 31 third sealing slot, 32 first boss, 33 second boss, 34 third boss, 341 third external thread, 35 third threaded hole, 36 second hole, 37 fourth hole, 38 third hole, 39 fourth sealing slot, 40 fourth threaded hole, 41 third through hole, 42 bearing hole, 43 fourth boss, 44 second countersunk hole, 61 fifth boss, 45 grinding disc, 46 workpiece, 47 workbench. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] The cleaning device of the grinding machine provided by the present invention comprises: a power device, including a cylinder gear and a driving mechanism; the cylinder gear is installed on the output shaft of the driving mechanism, and the driving mechanism is installed on the frame of the grinding machine; the first end of the rotating device is connected to the cylinder gear and driven by the cylinder gear to rotate; the height adjustment device, the first end of which is fixedly connected to the second end of the rotating device and can rotate with the rotating device; the spray angle adjustment device comprises a spray structure, a fastening screw and a nozzle base; the first end of the nozzle base is fixedly connected to the second end of the height adjustment device, and the height adjustment device drives the nozzle base to rotate and adjust the height; the second end of the nozzle base is provided with at least two spray structures through the fastening screw, and the spray directions of the spray structures are different. By adopting the above structure, the present invention effectively solves the following problems existing in the prior art: (1) the cleaning device has a complex structure and a large volume; (2) the pressure at the nozzle outlet is insufficient; (3) the cleaning range of the cleaning device is narrow and the cleaning efficiency is low; (4) the sealing of the cleaning device is poor; (5) the cleaning method is relatively bulky and cannot be adjusted, and the dead corner position is not cleaned thoroughly.

[0052] In one embodiment of the present invention, a cleaning device for a grinding machine is provided. In this embodiment, Figure 1 , Figure 2 As shown, the cleaning device comprises:

[0053] The power device is used to provide power for the entire cleaning device, and includes a cylinder gear 15 and a driving mechanism; the cylinder gear 15 is mounted on the output shaft of the driving mechanism, and the driving mechanism is mounted on the frame of the grinder;

[0054] A rotating device, a first end of which is connected to the cylinder gear 15 and is driven to rotate by the cylinder gear 15;

[0055] A height adjustment device, a first end of which is fixedly connected to the second end of the rotating device and can rotate with the rotating device;

[0056] The spray angle adjustment device includes a spray structure, a fastening screw 4 and a spray head base 5; the first end of the spray head base 5 is fixedly connected to the second end of the height adjustment device, and the height adjustment device drives the spray head base 5 to rotate and adjust the height; the second end of the spray head base 5 is provided with at least two spray structures through the fastening screw 4, and the spray directions of each spray structure are different. Each spray structure sprays cleaning liquid to the grinding disc of the grinder to clean the grinding disc.

[0057] Among them, Figures 3 to 4b As shown, each fastening screw 4 is provided with a spray structure, and each fastening screw 4 adopts a stepped tube structure, and a cleaning liquid channel is provided inside thereof; the fastening screw 4 includes an integrally formed tail portion 22, a middle portion 23 and a head portion 24, the diameters of which decrease successively. A first through hole 21 for guiding is provided in the horizontal direction of the middle portion 23, and the first through hole 21 is connected with the inlet of the spray structure to transmit the cleaning liquid into the spray structure. A first internal thread 20 is provided in the cleaning liquid channel from the tail portion 22 to the first through hole 21, and a first external thread 19 is provided on the outside of the head portion 24, and the first external thread 19 is matched with the first internal thread 20. When in use, the first external thread 19 of the fastening screw 4 adjacent to the nozzle base 5 is threadedly connected with the other end of the nozzle base 5, and the two adjacent fastening screws 4 are threadedly connected with the first internal thread 20 through the first external thread 19 at the head and tail, so that multiple spray structures with different spray angles are installed at the other end of the nozzle base 5.

[0058] When in use, the cleaning liquid storage device is arranged at the bottom of the rotating device, and the cleaning liquid flows through the rotating device and the height adjustment device and then enters the spray angle adjustment device, and the cleaning liquid is sprayed out from the spray end of the spray angle adjustment device. The cylinder gear 15 drives the rotating device to rotate with the swing of the driving mechanism, so that the position of the spray angle adjustment device in the horizontal plane is adjusted through the rotating device and the height adjustment device, thereby avoiding the problems of narrow cleaning range and low cleaning efficiency of the cleaning device, and overcoming the problem of incomplete cleaning of dead corners.

[0059] In the above embodiment, the diameters of the first external thread 19 and the first internal thread 20 are the same, and the length of the first external thread 19 is smaller than the length of the first internal thread 20 , so that two adjacent fastening screws 4 are connected end to end.

[0060] In the above embodiment, if Figure 3 , Figure 5a , Figure 5b As shown, the spray structure in the spray angle adjustment device includes a spray head seat cover 1, a nozzle 2 and a cleaning spray head seat 3. Among them:

[0061] The cleaning nozzle seat 3 has a second through hole 25 in the vertical direction, through which the cleaning nozzle seat 3 is sleeved on the outside of the fastening screw 4, and the second through hole 25 is connected with the first through hole 21; the cleaning nozzle seat 3 has a first threaded hole 18 in the horizontal direction, the first threaded hole 18 is connected with the second through hole 25, and the nozzle 2 can be installed on the first threaded hole 18.

[0062] The nozzle seat cover 1 is arranged at the tail 22 of the last fastening screw 4, and its cross section adopts a T-shaped structure. The vertical end of the T-shaped structure is provided with a second external thread 17 that cooperates with the first internal thread 20. The nozzle seat cover 1 is fixedly connected to the tail 22 by threads.

[0063] When using, Figure 3 As shown, the second-stage fastening screw 4 can fix the cleaning nozzle seat 3 through the tail 22 of the second-stage fastening screw 4 by inserting the first external thread 19 of the head 24 into the first internal thread 20 of the tail 22 of the previous-stage fastening screw 4, so that the cleaning nozzle seat 3 can only rotate along its own axis.

[0064] In this embodiment, preferably, Figure 5a , Figure 5b As shown, the second through hole 25 is a stepped hole with a thin middle and thick ends. The top thickness of the second through hole 25 is not less than the thickness of the tail portion 22 of the fastening screw 4, the height of the middle and lower parts of the second through hole 25 is equal to the length of the middle portion 23 of the fastening screw 4, the diameter of the top of the second through hole 25 is not less than the diameter of the tail portion 22 of the fastening screw 4, and the diameter of the middle part of the second through hole 25 is not less than the diameter of the middle portion 23 of the fastening screw 4, so that when the fastening screws 4 are connected in pairs, they just pass through the cleaning nozzle seat 3.

[0065] In this embodiment, preferably, a first sealing groove 26 for installing a sealing ring is further provided at the upper end of the cleaning nozzle seat 3, and the sealing ring effectively ensures the sealing performance of the cleaning device when the cleaning nozzle seat 3 is rotated.

[0066] In this embodiment, preferably, Figure 3 , Figure 6a , Figure 6b As shown, the second external thread 17 of the nozzle seat cover 1 has the same diameter as the first internal thread 20 of the fastening screw 4, and the length of the second external thread 17 is smaller than the length of the first internal thread 20 to ensure that the tail 22 of the fastening screw 4 near the end can be connected to the nozzle seat cover 1 to prevent the cleaning liquid from flowing out.

[0067] In the above embodiment, if Figure 1 , Figure 7a , Figure 7bAs shown, the inside of the nozzle base 5 is provided with a first hole 28 for transmitting cleaning liquid along its length direction, and the end of the first hole 28 located at the second end of the nozzle base 5 is provided with a second threaded hole 27, the first hole 28 is concentric with and connected to the second threaded hole 27, and is connected to the first external thread 19 of the head 24 of the fastening screw 4 through the second threaded hole 27, thereby fixing the fastening screw 4 and the nozzle base 5 together. A first countersunk hole 29 is provided at the first end of the nozzle base 5, which is perpendicular to and connected to the first hole 28, and is fixedly connected to the second end of the height adjustment device through the first countersunk hole 29.

[0068] In this embodiment, a plurality of cleaning nozzle seats 3 are installed at the second end of the nozzle base 5, each cleaning nozzle seat 3 is provided with a nozzle 2, and the cleaning nozzle seat 3 is installed on the left side of the upper cleaning nozzle seat 3, and can be expanded according to the required number. In this embodiment, preferably, there are two cleaning nozzle seats 3, and a nozzle seat cover 1 is provided on the left side of the last cleaning nozzle seat 3.

[0069] When in use, the cleaning liquid enters the fastening screw 4, the cleaning nozzle seat 3 and the nozzle 2 in sequence through the first countersunk hole 29, the first hole 28 and the second threaded hole 27 in the nozzle base 5, and finally sprays out from the spray port of the nozzle 2 to clean the grinder. Since the nozzle fastening screw 4 limits the freedom of the cleaning nozzle seat 3 in five directions, the cleaning nozzle seat 3 can still rotate around its own axis, thereby driving the nozzle 2 to rotate, forming a structure with different spray angles for each nozzle 2, so that the cleaning device can clean the position that is difficult to clean for a general non-rotatable nozzle, thereby improving the cleaning efficiency and cleanliness.

[0070] In this embodiment, preferably, in order to increase the pressure of the water outlet, the diameter of the first countersunk hole 29 is larger than the diameter of the first hole 28 .

[0071] In this embodiment, preferably, the second threaded hole 27 has the same diameter as the first external thread 19 , and the length of the first external thread 19 is shorter than the length of the second threaded hole 27 to ensure that the head 24 of the fastening screw 4 close to the nozzle base 5 can be connected to the nozzle base 5 .

[0072] In this embodiment, preferably, a second sealing groove 30 for installing a sealing ring is provided at the second end of the nozzle base 5 to effectively ensure the sealing between the cleaning nozzle seat 3 sleeved on the outside of the fastening screw 4 and the second end of the nozzle base 5. When in use, the cleaning liquid flows from the adapter cover 6 of the height adjustment device into the first countersunk hole 29, passes through the first hole 28 and the second threaded hole 27, and enters the nozzle fastening screw 4.

[0073] In the above embodiment, if Figure 1 , Figure 8a , Figure 8bAs shown, the rotating device includes a cleaning shaft 7, a protective cover 8, a skeleton oil seal 9, a deep groove ball bearing 10, a bearing flange 11, a locking nut 12, a shaft sleeve 13 and a keyless spur gear 14.

[0074] The cleaning shaft 7 is a hollow shaft, the bottom of the first end of which is connected to the cleaning liquid storage device, and the cleaning liquid is transported from the bottom of the hollow shaft to the top of the hollow shaft; a keyless spur gear 14 is provided on the first end, and the keyless spur gear 14 is meshed with the cylinder gear 15 for transmission, and the keyless spur gear 14 can slide up and down on the first end of the cleaning shaft 7.

[0075] A bearing flange 11 is arranged in the middle of the cleaning shaft 7, and its outer side is used to connect with the frame. A shaft sleeve 13 is arranged between the inner side and the cleaning shaft 7. The shaft sleeve 13 and the cleaning shaft 7 are interference fit. Deep groove ball bearings 10 positioned by the shaft sleeve 13 are arranged at both ends of the shaft sleeve 13, and a skeleton oil seal 9 is arranged on the upper part of the deep groove ball bearing 10 at the upper end.

[0076] The protective cover 8 is arranged in the middle of the cleaning shaft 7 and above the bearing flange 11 to prevent dust from entering the equipment.

[0077] The locking nut 12 is arranged on the cleaning shaft 7 and is located below the bearing flange 11 , and is used for positioning the cleaning shaft 7 .

[0078] In this embodiment, a first boss 32, a second boss 33 and a third boss 34 are sequentially arranged on the cleaning shaft 7 from the second end to the first end. The first boss 32 is used to fix the shield 8; the second boss 33 is located below the first boss 32, and two skeleton oil seals 9 arranged face to face are installed between the second boss 33 and the first boss 32 to prevent lubricating oil leakage; the third boss 34 is located below the second boss 33, and the sleeve 13 is installed between the second boss 33 and the third boss 34, and a third external thread 341 is arranged on the cleaning shaft 7 below the third boss 34, and the locking nut 12 is fixed to the cleaning shaft 7 through the third external thread 341.

[0079] In this embodiment, the inner ring of the deep groove ball bearing 10 located at the upper end is positioned by the cleaning shaft 7 and the sleeve 13, and the outer ring is positioned by the bearing flange 11; the inner ring of the deep groove ball bearing 10 located at the lower end is positioned by the sleeve 13 and the locking nut 12 installed on the third external thread 341, and the outer ring is positioned by the bearing flange 11.

[0080] In this embodiment, a vertical second hole 36 is provided along the length direction of the cleaning shaft 7, and the second hole 36 forms a hollow structure of the cleaning shaft 7. The end of the second hole 36 located at the first end of the cleaning shaft 7 is provided with a third threaded hole 35, which is convenient for connection with the cleaning liquid storage device; the second hole 36 is concentric with and connected to the third threaded hole 35. The end of the second end of the cleaning shaft 7 is circumferentially provided with a third sealing groove 31 for installing a sealing ring, so that it has a better sealing performance with the height adjustment device.

[0081] In this embodiment, if Fig.10a , Fig.10b As shown, a second through hole 41 and a bearing hole 42 are provided in the vertical direction of the bearing flange 11, and both ends of the second through hole 41 are respectively connected to a bearing hole 42, and the deep groove ball bearing 10 is arranged in the bearing hole 42. A fourth boss 43 is provided in the middle of the bearing flange 11, and six second countersunk holes 44 for fixing to the frame are provided on the fourth boss 43.

[0082] In this embodiment, the minimum rotation angle of the cleaning shaft 7 is determined by the gear ratio between the keyless spur gear 14 and the cylinder gear 15. The larger the gear ratio, the larger the minimum rotation angle, and vice versa. The setting can be selected according to actual needs.

[0083] In this embodiment, the distance between the nozzle seat cover 1 and the cleaning shaft 7 is set according to demand to ensure that the cleaning device can clean any position of the grinding disc.

[0084] In the above embodiment, if Figure 1 , Figures 9a to 9c As shown, the height adjustment device includes an adapter cover 6. A third hole 38 is provided inside the second end of the adapter cover 6, and a fourth hole 37 is provided inside the first end of the adapter cover 6, and the third hole 38 is connected to the fourth hole 37 in the vertical direction. A fifth boss 61 is provided outside the second end of the adapter cover 6, and the fifth boss 61 is fixedly connected to the first countersunk hole 29 by bolts, and the third hole 38 is provided corresponding to the first countersunk hole 29. The second end of the cleaning shaft 7 extends into the fourth hole 37 and can move up and down in the fourth hole 37, so as to adjust the distance between the cleaning shaft 7 and the adapter cover 6, and then adjust the height of the entire cleaning device.

[0085] Among them, the diameter of the fourth hole 37 is larger than that of the third hole 38 and the second hole 36. The cleaning liquid passes through the small-section-large-section-small-section pipeline, which can effectively increase the pressure value of the water outlet, thereby improving the cleaning effect of the entire cleaning device.

[0086] In this embodiment, a fourth sealing groove 39 for installing a sealing ring is further provided in the fourth hole 37 , so as to further improve the sealing performance between the adapter cover 6 and the cleaning shaft 7 .

[0087] In this embodiment, the spray angle adjustment device is arranged above the height adjustment device and is fixedly connected to the adapter cover 6 through the nozzle base 5. In this embodiment, the preferred connection method between the two is a threaded connection. Four fourth threaded holes 40 are arranged on the top of the second end of the adapter cover 6, which are fixedly connected to the first countersunk hole 29 of the nozzle base 5 by screws.

[0088] In the above embodiment, the driving mechanism may be a swing cylinder 16 or a motor. When a motor is used, the swing effect can be achieved by forward and reverse rotation.

[0089] In the above embodiments, the cleaning effect of the cleaning device of the present invention is related to the ratio of the diameters of the holes through which the cleaning liquid flows, and the diameters of the holes can be selected according to actual needs.

[0090] In the above embodiment, the cleaning device of the present invention is preferably arranged at a corner of the grinding machine, with a rotation amplitude of 90 degrees. It can also be arranged at other positions, and the amplitude of the rotation angle also changes with the setting position.

[0091] In one embodiment of the present invention, a method for using a cleaning device for a grinding machine is provided. In this embodiment, the method is implemented based on the above-mentioned cleaning device, such as Fig.11 , Fig.12 As shown, the method comprises the following steps:

[0092] 1) After the workpiece 46 is processed, the upper plate of the grinding disc 45 rises to a preset distance. The swing cylinder 16 controls the cleaning shaft 7 to rotate, thereby driving the nozzle base 5 to swing.

[0093] 2) The cleaning liquid flows through the second hole 36 , the fourth hole 37 , the third hole 38 , the first countersunk hole 29 , the first hole 28 , the first through hole 21 , and the first threaded hole 18 in sequence, and is finally ejected from the nozzle 2 .

[0094] During this period, the relative position of the adapter cover 6 and the second end of the cleaning shaft 7 can be adjusted to change the height of the nozzle 2; the swing of the swing cylinder 16 can be adjusted to change the position of the nozzle 2; the nozzle 2 can be rotated around the axis of the cleaning nozzle seat 3 to adjust the spray angle of the nozzle 2.

[0095] 3) The grinding disc 45 starts to rotate, and as the position, height and spray angle of the nozzle 2 are constantly changed, the cleaning liquid completely washes away the debris at each position, and the grinding disc 45 is cleaned, and the spraying of the cleaning liquid is stopped.

[0096] 4) The swing cylinder 16 controls the cleaning shaft 7 to rotate in the opposite direction to the initial position again, thus completing the cleaning work. When the equipment is processed next time, the above steps are repeated.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning device for a grinding machine, characterized in that: include: A power device, comprising a cylinder gear (15) and a driving mechanism; The cylinder gear (15) is mounted on the output shaft of the driving mechanism, and the driving mechanism is mounted on the frame of the grinding machine; a rotating device, a first end of which is connected to the cylinder gear (15) and is driven to rotate by the cylinder gear (15); A height adjustment device, a first end of which is fixedly connected to the second end of the rotating device and can rotate with the rotating device; The spray angle adjustment device comprises a spray structure, a fastening screw (4) and a spray head base (5); the first end of the spray head base (5) is fixedly connected to the second end of the height adjustment device, and the height adjustment device drives the spray head base (5) to rotate and adjust the height; the second end of the spray head base (5) is provided with at least two spray structures through the fastening screw (4), and the spray directions of the spray structures are different; Each of the fastening screws (4) is provided with a spray structure, and each of the fastening screws (4) adopts a stepped tube structure, and a cleaning liquid channel is provided inside the structure; The fastening screw (4) comprises an integrally formed tail portion (22), a middle portion (23) and a head portion (24) of which the diameters decrease in sequence; a first through hole (21) for guiding fluid is provided in the horizontal direction of the middle portion (23), and the first through hole (21) is communicated with the inlet of the injection structure; a first internal thread (20) is provided in the cleaning liquid channel from the tail portion (22) to the first through hole (21), and a first external thread (19) is provided on the outer side of the head portion (24), and the first external thread (19) is matched with the first internal thread (20); The spray structure in the spray angle adjustment device comprises a spray head seat cover (1), a nozzle (2) and a cleaning spray head seat (3); The cleaning nozzle seat (3) is provided with a second through hole (25) in the vertical direction, and the cleaning nozzle seat (3) is sleeved on the outside of the fastening screw (4) through the second through hole (25), and the second through hole (25) is connected to the first through hole (21); a first threaded hole (18) is provided in the horizontal direction of the cleaning nozzle seat (3), the first threaded hole (18) is connected to the second through hole (25), and the nozzle (2) is installed on the first threaded hole (18); a first sealing groove for installing a sealing ring is provided at the upper end of the cleaning nozzle seat (3); The nozzle seat cover (1) is arranged at the tail (22) of the last fastening screw (4), and its cross section adopts a T-shaped structure. The vertical end of the T-shaped structure is provided with a second external thread (17) that matches the first internal thread (20).

2. The cleaning device for a grinding machine as claimed in claim 1, characterized in that: The second through hole (25) is a stepped hole that is thin in the middle and thick at both ends; the thickness of the top of the second through hole (25) is not less than the thickness of the tail portion (22) of the fastening screw (4); the height of the middle and lower portions of the second through hole (25) is equal to the length of the middle portion (23) of the fastening screw (4); the diameter of the top of the second through hole (25) is not less than the diameter of the tail portion (22) of the fastening screw (4); and the diameter of the middle portion of the second through hole (25) is not less than the diameter of the middle portion (23) of the fastening screw (4).

3. The cleaning device for a grinding machine as claimed in claim 1, characterized in that: A first hole (28) for transmitting cleaning liquid is provided inside the nozzle base (5) along its length direction; the end of the first hole (28) located at the second end of the nozzle base (5) is provided as a second threaded hole (27), which is connected to the first external thread (19) of the fastening screw (4) through the second threaded hole (27); a first countersunk hole (29) perpendicular to and in communication with the first hole (28) is provided at the first end of the nozzle base (5) for fixed connection with the second end of the height adjustment device; and a second sealing groove for mounting a sealing ring is provided at the second end of the nozzle base (5).

4. The cleaning device for a grinding machine as claimed in claim 3, characterized in that: The diameter of the first countersunk hole (29) is greater than the diameter of the first hole (28); the diameter of the second threaded hole (27) is the same as that of the first external thread (19), and the length of the first external thread (19) is less than the length of the second threaded hole (27).

5. The cleaning device for a grinding machine as claimed in claim 1, characterized in that: The rotating device comprises: The cleaning shaft (7) is a hollow shaft, the bottom of the first end of which is connected to the cleaning liquid storage device, and the cleaning liquid is transported from the bottom of the hollow shaft to the top of the hollow shaft; a keyless spur gear (14) meshing with the cylinder gear (15) is provided on the first end, and the keyless spur gear (14) can slide up and down on the first end of the cleaning shaft (7); A bearing flange (11) is arranged in the middle of the cleaning shaft (7), the outer side of which is used to be connected to the frame, and a shaft sleeve (13) is arranged between the inner side and the cleaning shaft (7), the shaft sleeve (13) and the cleaning shaft (7) are interference fit, deep groove ball bearings (10) are arranged at both ends of the shaft sleeve (13), and a skeleton oil seal (9) is arranged on the upper part of the deep groove ball bearing (10) at the upper end; A protective cover (8) is arranged in the middle of the cleaning shaft (7) and is located above the bearing flange (11); A locking nut (12) is arranged on the cleaning shaft (7) and is located below the bearing flange (11) and is used to position the cleaning shaft (7).

6. The cleaning device for a grinding machine as claimed in claim 5, characterized in that: A vertical second hole (36) is provided along the length direction of the cleaning shaft (7); the end of the second hole (36) located at the first end of the cleaning shaft (7) is provided as a third threaded hole (35) for connecting to a cleaning liquid storage device; and a third sealing groove for mounting a sealing ring is provided circumferentially at the end of the second end of the cleaning shaft (7).

7. The cleaning device for a grinding machine as claimed in claim 5, characterized in that: The gear ratio between the keyless spur gear (14) and the cylinder gear (15) determines the minimum rotation angle of the cleaning shaft (7); the larger the gear ratio, the larger the minimum rotation angle, and vice versa.

8. The cleaning device for a grinding machine as claimed in claim 3, characterized in that: The height adjustment device comprises an adapter cover (6); a third hole (38) is arranged inside the second end of the adapter cover (6), and a fourth hole (37) connected to the third hole (38) is arranged inside the first end of the adapter cover (6); a fifth boss (61) is arranged outside the second end of the adapter cover (6), and the fifth boss (61) is fixedly connected to the first countersunk hole (29) on the nozzle base (5), and the third hole (38) and the first countersunk hole (29) are arranged correspondingly; the second end of the cleaning shaft (7) in the rotating device extends into the fourth hole (37) and can move up and down in the fourth hole (37) to adjust the distance between the cleaning shaft (7) and the adapter cover (6).

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