Grinding equipment

Abstract

The embodiment of the utility model relates to the technical field of grinding, and provides grinding equipment. The grinding equipment comprises a first grinding mechanism, a first driving mechanism, a second grinding mechanism and a second driving mechanism. The first grinding mechanism comprises a sun wheel, an inner gear ring, a first grinding disc, an outer gear ring and a wandering star wheel. The inner gear ring surrounds the sun gear. The inner gear ring is sleeved with the first grinding disc. The outer gear ring is located on the first grinding disc and surrounds the inner gear ring. The wandering star wheel is arranged on the first grinding disc, located between the inner gear ring and the outer gear ring and meshed with the inner gear ring and the outer gear ring. The wandering star wheel can be used for placing workpieces. The first driving mechanism is used for driving the wandering star wheel to rotate around the sun wheel. The second grinding mechanism comprises a second grinding disc. The second driving mechanism is used for driving the second grinding mechanism to get close to or away from the first grinding mechanism so that the second grinding disc can be connected with or disengaged from the sun gear. The grinding equipment is beneficial for improving the removal effect of burrs and microscopic protrusions on the surface of a workpiece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding, in particular to a grinding device. BACKGROUND

[0002] Generally, after processing, the surface of a workpiece (such as a metal workpiece) will have some burrs and micro-protrusions, which will affect the quality and aesthetics of the workpiece. Therefore, the surface of the workpiece needs to be processed to improve the surface quality of the workpiece. At present, the surface of the workpiece is usually processed by mechanical cutting process. However, the mechanical cutting process cannot completely avoid the problems of surface unevenness caused by tool wear and vibration, which may result in unsatisfactory burr and micro-protrusion removal effect. CONTENT OF THE UTILITY MODEL

[0003] In view of the above situation, it is necessary to provide a grinding device to solve the technical problem of unsatisfactory burr and micro-protrusion removal effect of the existing mechanical cutting process.

[0004] The grinding device comprises a first grinding mechanism, a first driving mechanism, a second grinding mechanism and a second driving mechanism. The first grinding mechanism comprises a sun gear, an inner ring gear, a first grinding disc, an outer ring gear and a wandering star gear. The inner ring gear surrounds the sun gear. The first grinding disc is sleeved outside the inner ring gear. The outer ring gear is located on the first grinding disc and surrounds the inner ring gear. The wandering star gear is arranged on the first grinding disc and located between the inner ring gear and the outer ring gear and meshes with the inner ring gear and the outer ring gear respectively. The wandering star gear can be used to place the workpiece. The first driving mechanism is connected with the first grinding mechanism and is used to drive the wandering star gear to rotate around the sun gear. The second grinding mechanism is arranged opposite to the first grinding mechanism and comprises a second grinding disc. The second driving mechanism is connected with the second grinding mechanism and is used to drive the second grinding mechanism to approach or move away from the first grinding mechanism so as to connect or disconnect the second grinding disc with the sun gear.

[0005] In the grinding device, the double-sided grinding mechanism design of the first grinding mechanism and the second grinding mechanism can simultaneously perform more detailed and comprehensive irregular grinding on the upper and lower surfaces of the workpiece, thereby improving the removal effect of burrs and micro-protrusions. At the same time, the design of the wandering star gear facilitates the fixation of the workpiece, ensures the stability of the workpiece during grinding, reduces the problem of surface unevenness caused by vibration, and further improves the grinding effect, thereby improving the surface quality and aesthetics of the workpiece.

[0006] In some embodiments, the first driving mechanism comprises a first motor and a second motor. The first motor is connected with the sun gear and is used to drive the sun gear and the inner ring gear to rotate synchronously. The second motor is connected with the first grinding disc and is used to drive the first grinding disc and the outer ring gear to rotate synchronously.

[0007] In some embodiments, the first grinding mechanism further comprises an anti-overflow plate, the anti-overflow plate comprising a bottom and a surrounding portion connected to and surrounding the bottom, the sun gear, the inner ring gear, the first grinding plate, the outer ring gear and the planet carrier are all located on the bottom and surrounded by the surrounding portion.

[0008] In some embodiments, the second grinding plate comprises a second upper grinding plate and a second lower grinding plate. The second upper grinding plate is rotationally connected to the second driving mechanism. The second lower grinding plate is connected to the second upper grinding plate through connecting columns. The second lower grinding plate is used to grind the surface of the workpiece close to the second grinding mechanism. The middle part of the second lower grinding plate is hollowed out to avoid the sun gear.

[0009] In some embodiments, the second grinding mechanism further comprises a mounting frame connected to the driving end of the second driving mechanism and located above the second upper grinding plate. The mounting frame is connected to a liquid inlet valve or a liquid inlet pipe at an end away from the driving end of the second driving mechanism. The second upper grinding plate is provided with an annular liquid collecting groove corresponding to the lower part of the liquid inlet valve or the liquid inlet pipe. A plurality of liquid conveying pipes are connected in the liquid collecting groove, each of which is connected between the second upper grinding plate and the second lower grinding plate to convey grinding or cooling liquid to the first grinding mechanism.

[0010] In some embodiments, the second lower grinding plate is provided with a clamping piece, and the sun gear is provided with a clamping groove matched with the clamping piece.

[0011] In some embodiments, the planet carrier is provided with a jig hole, and the jig hole is provided with a flexible protective sleeve, and the protective sleeve has a containing hole matched with the workpiece.

[0012] In some embodiments, a plurality of planet carriers are arranged on the first grinding plate at intervals, and a plurality of jig holes are uniformly distributed around the center of the planet carrier.

[0013] In some embodiments, the planet carrier has a first liquid leakage hole at the center of the planet carrier and a plurality of second liquid leakage holes around the first liquid leakage hole, and each second liquid leakage hole is located between two adjacent jig holes.

[0014] In some embodiments, the inner ring gear comprises a plurality of first pins arranged at intervals, and the first pins are connected to the sun gear; the outer ring gear comprises a plurality of second pins arranged at intervals, and the second pins are connected to the first grinding plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of the grinding device of an embodiment of the present application.

[0016] Figure 2 The structure diagram of the grinding device of an embodiment of the present application. Figure 1 The structure diagram of the grinding device of an embodiment of the present application.

[0017] Figure 3 Fig. 1 is a structural schematic diagram of a grinding device according to an embodiment of the present application. Figure 1 Fig. 2 is a structural schematic diagram of the first grinding mechanism, the second grinding mechanism and the second driving mechanism in another state.

[0018] Figure 4 Fig. 3 is a structural schematic diagram of the sun gear and the protective sleeve of the first grinding mechanism and the workpiece to be ground. Figure 3 Fig. 4 is a structural schematic diagram of the workpiece, the protective sleeve and the sun gear after assembly.

[0019] Figure 5 Fig. 5 is a structural schematic diagram of the workpiece, the protective sleeve and the sun gear after assembly. Figure 4 Fig. 6 is a structural schematic diagram of the workpiece, the protective sleeve and the sun gear after assembly.

[0020] Main element symbol explanation:

[0021] 100-grinding device; 10-body; 11-frame; 12-baffle; 10R-internal space; 20-first grinding mechanism; 21-sun gear; 21r-clamping groove; 22-inner ring gear; 221-first pin; 23-first grinding disc; 24-outer ring gear; 241-second pin; 25-sun gear; 25a-first liquid leakage hole; 25b-second liquid leakage hole; 25h-jig hole; 26-overflow plate; 261-bottom; 262-enclosure; 27-protective sleeve; 27h-receiving hole; 30-first driving mechanism; 40-second grinding mechanism; 41-second grinding disc; 411-second upper grinding disc; 411r-liquid collecting groove; 412-second lower grinding disc; 412a-clamping piece; 42-liquid delivery pipe; 43-connection column; 44-mounting frame; 45-liquid inlet valve; 46-liquid inlet pipe; 50-second driving mechanism; 60-control system; P-workpiece.

[0022] The following detailed description will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0024] In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0026] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0027] In the description of the embodiments of the present application, unless otherwise specified, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements.

[0028] For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] As shown in Figure 1 The grinding device 100 includes a machine body 10, a first grinding mechanism 20, a first driving mechanism 30, a second grinding mechanism 40, a second driving mechanism 50 and a control system 60.

[0030] The machine body 10 is the overall support structure of the grinding device 100. The first grinding mechanism 20, the first driving mechanism 30, the second grinding mechanism 40, the second driving mechanism 50 and the control system 60 are directly or indirectly mounted on the machine body 10. Specifically, the machine body 10 includes a frame 11 and a plurality of baffles 12 connected to the frame 11. The plurality of baffles 12 and the frame 11 enclose an internal space 10R. The first grinding mechanism 20, the second grinding mechanism 40 and the first driving mechanism 30 are located in the internal space 10R of the machine body 10. The first grinding mechanism 20 is arranged opposite to the second grinding mechanism 40. The first driving mechanism 30 is located below the first grinding mechanism 20 and connected to the first grinding mechanism 20.

[0031] The second drive mechanism 50 is located above and connected to the second grinding mechanism 40. The second drive mechanism 50 is partially located within the internal space 10R of the body 10, and partially exposed from the body 10. The second drive mechanism 50 is used to drive the second grinding mechanism 40 to move towards or away from the first grinding mechanism 20. The second drive mechanism 50 can be, but is not limited to, a cylinder.

[0032] The first drive mechanism 30 is used to drive the first grinding mechanism 20 to rotate.

[0033] The control system 60 is connected to the first grinding mechanism 20, the second grinding mechanism 40, the first drive mechanism 30, and the second drive mechanism 50, and is used to adjust the parameters during the grinding process.

[0034] like Figure 2 As shown, the first grinding mechanism 20 includes a sun gear 21, an internal gear ring 22, a first grinding disc 23, an external gear ring 24, and a planetary gear 25. The internal gear ring 22 surrounds the sun gear 21. The internal gear ring 22 refers to the gear ring located inside the sun gear, and the external gear ring 24 refers to the gear ring located outside the sun gear. The first grinding disc 23 is fitted outside the internal gear ring 22. The external gear ring 24 is located on the first grinding disc 23 and surrounds the internal gear ring 22. The planetary gear 25 is located on the first grinding disc 23 and between the internal gear ring 22 and the external gear ring 24, and meshes with both the internal gear ring 22 and the external gear ring 24. The planetary gear 25 is used to hold the workpiece P. The planetary gear 25 has a fixture hole 25h. The first driving mechanism 30 is used to drive the planetary gear 25 to rotate randomly around the sun gear 21.

[0035] In some embodiments, multiple planetary wheels 25 are spaced apart on the first grinding disc 23. The design of multiple planetary wheels 25 enables simultaneous grinding of multiple workpieces P, improving the production efficiency of the grinding equipment 100. Simultaneously, the evenly distributed planetary wheels 25 ensure that each workpiece P receives balanced force and grinding action during the grinding process, guaranteeing consistent grinding quality for each workpiece P and improving the overall consistency and reliability of production.

[0036] In some embodiments, the number of planetary wheels 25 is 7, the size of each planetary wheel 25 can be, but is not limited to, 7.70*323.20mm, the angle between adjacent fixture holes 25h in each planetary wheel 25 can be, but is not limited to, 60 degrees, the number of teeth of each planetary wheel 25 can be, but is not limited to, 64, the size of the teeth of each planetary wheel 25 can be, but is not limited to, R4.25, and the material of each planetary wheel 25 can be, but is not limited to, glass fiber.

[0037] In some embodiments, the workpiece P can be, but is not limited to, a metal material. The grinding device 100 is used to remove burrs and fine surface indentations on the front and back surfaces and four edges of the workpiece P. The workpiece P is, for example, a part in a product such as a mobile phone, a tablet computer, a notebook computer, a smart home appliance, or a vehicle-mounted electronic device.

[0038] In some embodiments, the second grinding mechanism 40 includes a second grinding disc 41. The second grinding disc 41 includes a second upper grinding disc 411 and a second lower grinding disc 412. The second upper grinding disc 411 is connected to the second driving mechanism 50. The second lower grinding disc 412 is disposed apart from the second upper grinding disc 411 and is connected to a side of the second upper grinding disc 411 close to the first grinding mechanism 20. The second lower grinding disc 412 is used to grind the surface of the workpiece P close to the second grinding mechanism 40. The second driving mechanism 50 is used to drive the second grinding mechanism 40 to approach or move away from the first grinding mechanism 20, so that the second grinding disc 41 is connected or disconnected from the sun gear 21, and thus the second grinding disc 41 can rotate relative to the first grinding disc 23 to simultaneously grind the opposite two surfaces of the workpiece P.

[0039] Through the double-sided grinding mechanism design of the first grinding mechanism 20 and the second grinding mechanism 40, more detailed and comprehensive irregular grinding of the upper and lower surfaces of the workpiece P can be performed at the same time, and the removal effect of burrs and micro convexities is improved. At the same time, the design of the jig hole 25h of the wandering star wheel 25 facilitates the fixation of the workpiece P, ensures the stability of the workpiece P during grinding, reduces the problem of surface unevenness caused by vibration, and thus improves the surface quality and aesthetic degree of the workpiece P.

[0040] As shown in FIG. 1, the second lower grinding disc 412 is connected to the second upper grinding disc 411 through a plurality of connecting rods 413. Figure 3 As shown in FIG. 1, the middle part of the second lower grinding disc 412 is hollow to avoid the sun gear 21. The design of the hollow middle part of the second lower grinding disc 412 avoids the interference of the sun gear 21, making the grinding process smoother and reducing mechanical interference and wear. This not only improves the accuracy of grinding, but also prolongs the service life of the device.

[0041] In some embodiments, the second grinding mechanism 40 further comprises a connecting column 43, a mounting frame 44, a liquid inlet valve 45 and a liquid inlet pipe 46. Specifically, the second lower grinding disc 412 is connected with the second upper grinding disc 411 through the connecting column 43. The mounting frame 44 is connected with the driving end of the second driving mechanism 30 and is located above the second upper grinding disc 411. The mounting frame 44 is connected with the liquid inlet valve 45 or the liquid inlet pipe 46 at the end away from the driving end of the second driving mechanism 30. The second upper grinding disc 411 is provided with an annular liquid collecting groove 411r. The liquid collecting groove 411r is arranged below the liquid inlet valve 45 or the liquid inlet pipe 46. A plurality of liquid delivery pipes 42 are connected in the liquid collecting groove 411r, and each liquid delivery pipe 42 is connected between the second upper grinding disc 411 and the second lower grinding disc 412. In this way, the grinding liquid or the cooling liquid first enters the liquid collecting groove 411r through the liquid inlet valve 45 or the liquid inlet pipe 46, and then is delivered from the liquid collecting groove 411r through the liquid delivery pipe 42, which can effectively avoid interference when the liquid delivery pipe 42 rotates during grinding.

[0042] The grinding liquid or the cooling liquid is delivered to the first grinding mechanism 20 through the liquid delivery pipe 42, which ensures lubrication and cooling during grinding, reduces the accumulation of grinding heat, and prevents the workpiece P from being deformed or damaged due to overheating. At the same time, sufficient supply of grinding liquid or cooling liquid helps to effectively remove grinding dust, keep the grinding area clean, and improve the grinding effect and the smoothness of the surface of the workpiece P.

[0043] In some embodiments, the grinding device 100 further comprises a liquid storage tank (not shown). The liquid inlet pipe 46 is in communication with the liquid storage tank to deliver the grinding liquid or the cooling liquid in the liquid storage tank to the liquid collecting groove 411r.

[0044] The second lower grinding disc 412 is provided with a clamping piece 412a, and the sun gear 21 is provided with a clamping groove 21r for use with the clamping piece 412a. The clamping piece 412a and the clamping groove 21r facilitate the connection and disconnection of the second lower grinding disc 412 with the sun gear 21, and the second lower grinding disc 412 is driven to rotate by the sun gear 21. At this time, the second upper grinding disc 411 is rotatably connected with the second driving mechanism 42 through a bearing. When the sun gear 21 drives the second lower grinding disc 412 to rotate, the second upper grinding disc 411 and the liquid delivery pipe 42 rotate synchronously with the second lower grinding disc 412, and the second driving mechanism 40 and the mounting frame 44 do not rotate under the action of the bearing connection.

[0045] The first driving mechanism 30 is the power source of the grinding device 100. In some embodiments, the first driving mechanism 30 comprises a first motor and a second motor. The first motor is connected with the sun gear 21 and is used to drive the sun gear 21 and the inner ring gear 22 to rotate synchronously. The second motor is connected with the first grinding disc 23 and is used to drive the first grinding disc 23 and the outer ring gear 24 to rotate synchronously.

[0046] The double-motor driving design is adopted to realize the synchronous rotation of the sun gear 21 and the inner ring gear 22, the first grinding disc 23 and the outer ring gear 24, and to ensure the coordinated movement between the components of the grinding device 100. Such synchronization improves the stability and accuracy of the grinding process, reduces the surface defects of the workpiece P caused by different rotation speeds, and further improves the grinding effect and the quality of the workpiece P.

[0047] Please refer to Figure 2 and Figure 3 The inner ring gear 22 includes a plurality of first pins 221 arranged uniformly at intervals. The outer ring gear 24 includes a plurality of second pins 241 arranged uniformly at intervals. The first pins 221 are connected to the sun gear 21, and the second pins 241 are connected to the first grinding disc 23. The first pins 221 serve as the meshing teeth of the inner ring gear 22 and are matched with the star wheel 25 for meshing. The second pins 241 serve as the meshing teeth of the outer ring gear 24 and are matched with the star wheel 25 for meshing. By arranging the structures of the inner ring gear 22 and the outer ring gear 24 as a plurality of pins arranged at intervals, the number of meshing points between the inner ring gear 22 and the star wheel 25 and the number of meshing points between the outer ring gear 24 and the star wheel 25 can be increased, and the stability and accuracy of the transmission can be enhanced. Such design effectively reduces the vibration and uneven wear caused by poor meshing between the ring gear and the star wheel 25 during the grinding process, thereby improving the grinding quality and the service life of the device. In other embodiments, the inner ring gear 22 and the outer ring gear 24 can also be standard gears as needed.

[0048] In some embodiments, the first grinding mechanism 20 further includes an anti-overflow plate 26. The anti-overflow plate 26 includes a bottom 261 and a surrounding part 262 connected to and surrounding the bottom 261. The sun gear 21, the inner ring gear 22, the first grinding disc 23, the outer ring gear 24 and the star wheel 25 are all located on the bottom 261 and surrounded by the surrounding part 262.

[0049] The arrangement of the anti-overflow plate 26 effectively prevents the overflow of grinding liquid or grinding dust during the grinding process, and keeps the working environment clean. The lower part of the anti-overflow plate 26 can be provided with a drainage port and a drainage valve for discharging the grinding liquid and the grinding dust. At the same time, the design of the surrounding part 262 protects the internal structure of the first grinding mechanism 20, reduces the entry of external impurities, ensures the stability and continuity of the grinding process, and improves the grinding quality of the surface of the workpiece P.

[0050] Please refer to Figure 4 and Figure 5The plurality of jig holes 25h are evenly distributed around the center of the star wheel 25, for example, the plurality of jig holes 25h are evenly distributed at equal angles around the center of the star wheel 25, but not limited thereto. The design of the plurality of jig holes 25h realizes the simultaneous grinding of a plurality of workpieces P, and improves the production efficiency of the grinding equipment 100. At the same time, the uniform distribution of the jig holes 25h ensures that each workpiece P receives balanced force and grinding action during the grinding process, ensuring that the grinding quality of each workpiece P is consistent, and improving the consistency and reliability of the overall production. Therefore, through accurate calculation and layout of the workstations on the star wheel 25, the grinding equipment 100 can ensure that the workpiece P is uniformly stressed and worn during the grinding process, thereby achieving high-quality and high-consistency surface treatment effect.

[0051] The first grinding mechanism 20 further comprises a flexible protective sleeve 27 having a receiving hole 27h adapted to the workpiece P, and the protective sleeve 27 is arranged in the jig hole 25h. The flexible protective sleeve 27 can be adapted to the shape of the workpiece P to provide good support and fixation, preventing the workpiece P from shifting due to vibration or instability during the grinding process. This not only improves the accuracy and consistency of the grinding, but also reduces scratches and defects on the surface of the workpiece P, further improving the surface quality of the workpiece P.

[0052] In some embodiments, the material of the protective sleeve 27 can be, but is not limited to, silica gel, to protect the workpiece P from scratches.

[0053] In some embodiments, the star wheel 25 has a first liquid leakage hole 25a and a plurality of second liquid leakage holes 25b. The first liquid leakage hole 25a is located at the center of the star wheel 25, and the plurality of second liquid leakage holes 25b are arranged around the first liquid leakage hole 25a, and each second liquid leakage hole 25b is located between two adjacent jig holes 25h.

[0054] The design of the first liquid leakage hole 25a and the second liquid leakage hole 25b helps to effectively discharge the waste liquid and grinding dust generated during the grinding process, preventing them from accumulating in the grinding area and maintaining the cleanliness of the grinding environment. This not only improves the grinding efficiency and reduces the frequency of equipment maintenance, but also avoids secondary pollution of the waste liquid and grinding dust to the surface of the workpiece P, ensuring the smoothness and quality of the surface of the workpiece P.

[0055] In some embodiments, the control system 60 can further comprise a speed regulation mechanism, a safety protection mechanism, a control circuit module, etc. The control system 60 is used to adjust at least one of the following parameters: the rotation speed of the first grinding disc 23, the rotation speed of the second grinding disc 41, the rotation speed of the sun gear 21, the pressure of the first grinding disc 23 on the workpiece P, the amount of grinding liquid, and the grinding time.

[0056] The introduction of the control system 60 enables the grinding device 100 to flexibly adjust various parameters according to different workpieces P and grinding requirements, and to optimize the grinding process. By precisely controlling the rotation speed, pressure, liquid volume, and time, the stability and consistency of each grinding operation are ensured, and the grinding quality of the surface of the workpiece P is improved. At the same time, automatic parameter adjustment reduces human operation errors and improves the operation convenience and production efficiency of the device. Therefore, the grinding device 100, with advanced technology and automatic grinding function, realizes automatic adjustment and monitoring of the polishing process parameters, can quickly and efficiently remove burrs on the surface of the workpiece P (such as a metal surface), and ensures that the surface roughness and defects after processing meet the required requirements.

[0057] The working process of the grinding device 100 of the embodiment of the present application is specifically described as follows:

[0058] Start the control system 60, and the second grinding mechanism 40 is driven by the second driving mechanism 50 to rise to the top end. Then, install the polishing leather in the first grinding disc 23 of the first grinding mechanism 20, and use the diamond to level it. After that, install the star wheels 25 on the first grinding disc 23, and drive the first grinding disc 23 by the first driving mechanism 30 to rotate the star wheels 25 (such as three turns). After confirming that there is no abnormality, install the protective sleeves 27 on each star wheel 25, and then use the star wheels 25 to position the workpiece P, and place the workpiece P into the star wheels 25, ensuring that there is no gap between the workpiece P and the protective sleeves 27. After that, set the process parameters by the control system 60 to start the trial operation of the grinding device 100, and after confirming that the star wheels 25 rotate normally and the liquid delivery pipe 42 starts to deliver liquid, set the processing time, rotation speed, pressure, and the amount of grinding liquid. Then, drive the second grinding mechanism 40 to move down to the position by the second driving mechanism 50, press the start button of the main machine in the control system 60, and start processing. After the grinding and polishing are completed, drive the second grinding mechanism 40 to rise by the second driving mechanism 50, take out the workpiece P, press the jog button to take out the workpiece P one by one, place them in the cleaning area, and then install the workpiece P to be processed for cyclic processing.

[0059] Specifically, the grinding mode can be, but is not limited to, reverse rotation of the first grinding disc 23 and the second grinding disc 41; the inner ring gear 22, the outer ring gear 24, and the sun gear 21 rotate at a certain speed ratio; and the star wheels 25 move around the sun gear 21 between the first grinding disc 23 and the second grinding disc 41 under the drive of the inner ring gear 22 and the sun gear 21.

[0060] It should be noted that the mechanical cutting process often cannot completely avoid the problems of surface unevenness caused by tool wear and vibration, which may result in unsatisfactory deburring effect and high missed removal ratio. In addition, the removal effect of the mechanical cutting process is affected by the skill level of the personnel, and the workpieces are densely placed, which has the risk of secondary collision. In addition, the mechanical cutting process is mostly in the form of single-piece processing, which is low in efficiency.

[0061] The grinding device of the embodiment of the present application can remove burrs, protrusions and other defects of a workpiece (such as a metal), so that the surface of the workpiece is smoother and more delicate, and the overall quality and appearance of the workpiece are improved. The removal of burrs on the surface of the workpiece can reduce resistance and friction in the subsequent machining process, so that the subsequent machining is more smooth and efficient, and the manufacturing efficiency and production capacity are improved.

[0062] In addition, the grinding device of the embodiment of the present application has a simple structure, is convenient to maintain, is suitable for burr removal of workpieces of different sizes, is simple and convenient to replace consumables, and is provided with multiple star wheels and multiple jig holes, so that workpieces can be batch processed, labor input is reduced, burr removal time of the workpiece is shortened, and product manufacturing cost is greatly reduced.

[0063] In summary, the grinding device of the embodiment of the present application determines the overall structure of the star wheel, designs the workpiece placement layout and fixing mode of the workpiece to be polished, combines automatic control, accurately controls the rotational speed of the star wheel and the contact pressure with the polishing medium, realizes accurate polishing parameter control, effectively solves the problems of surface unevenness caused by tool wear and vibration in the mechanical cutting process, significantly improves the quality and aesthetics of the surface of the workpiece, and meets the high-precision and high-efficiency grinding requirements.

[0064] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application.

Claims

1. A grinding apparatus characterized by comprising: The application relates to a polishing device. The first polishing mechanism comprises a sun gear, an inner ring gear, a first polishing disc, an outer ring gear and a planet wheel, the inner ring gear surrounds the sun gear; the first polishing disc is sleeved outside the inner ring gear; the outer ring gear is located on the first polishing disc and surrounds the inner ring gear; the planet wheel is arranged on the first polishing disc and located between the inner ring gear and the outer ring gear and is in mesh with the inner ring gear and the outer ring gear respectively; the planet wheel can be used for placing a workpiece; The first driving mechanism is connected with the first polishing mechanism and is used for driving the planet wheel to rotate around the sun gear; The second polishing mechanism is arranged opposite to the first polishing mechanism and comprises a second polishing disc; The second driving mechanism is connected with the second polishing mechanism and is used for driving the second polishing mechanism to move close to or away from the first polishing mechanism so that the second polishing disc is connected with or separated from the sun gear. The first driving mechanism comprises a first motor and a second motor, the first motor is connected with the sun gear and is used for driving the sun gear and the inner ring gear to rotate synchronously; the second motor is connected with the first polishing disc and is used for driving the first polishing disc and the outer ring gear to rotate synchronously. The first polishing mechanism further comprises an anti-overflow disc, the anti-overflow disc comprises a bottom and a surrounding part connected with and surrounding the bottom, the sun gear, the inner ring gear, the first polishing disc, the outer ring gear and the planet wheel are all located on the bottom and surrounded by the surrounding part.

2. The lapping apparatus of claim 1, wherein, The second polishing disc comprises a second upper polishing disc and a second lower polishing disc; the second upper polishing disc is rotationally connected with the second driving mechanism; the second lower polishing disc is connected with the second upper polishing disc through a connecting column; the second lower polishing disc is used for polishing the surface of the workpiece close to the second polishing mechanism; the middle part of the second lower polishing disc is hollowed out to avoid the sun gear.

3. The lapping apparatus of claim 1, wherein, The second polishing mechanism further comprises a mounting frame connected with the driving end of the second driving mechanism and located above the second upper polishing disc, one end of the mounting frame away from the driving end of the second driving mechanism is connected with a liquid inlet valve or a liquid inlet pipe, an annular liquid collecting groove is arranged on the second upper polishing disc and is arranged below the liquid inlet valve or the liquid inlet pipe; a plurality of liquid conveying pipes are connected in the liquid collecting groove, each liquid conveying pipe is connected between the second upper polishing disc and the second lower polishing disc to convey polishing liquid or cooling liquid to the first polishing mechanism.

4. The lapping apparatus of claim 1, wherein, A clamping groove matched with the clamping piece is arranged on the sun gear.

5. The lapping apparatus of claim 4, wherein, A jig hole is arranged on the planet wheel, a flexible protective sleeve is arranged in the jig hole, and the protective sleeve has a containing hole matched with the workpiece.

6. A grinding apparatus according to claim 4 or 5, characterised in that, A plurality of planet wheels are arranged on the first polishing disc at intervals, and a plurality of jig holes are uniformly distributed around the center of the planet wheel.

7. The lapping apparatus of claim 1, wherein, The planet wheel has a first liquid leakage hole located at the center of the planet wheel and a plurality of second liquid leakage holes surrounding the first liquid leakage hole, and each second liquid leakage hole is located between two adjacent jig holes.

8. The lapping apparatus of claim 7, wherein, ​ 9. The lapping apparatus of claim 8, wherein, ​ 10. The lapping apparatus of claim 1, wherein, The inner gear ring comprises a plurality of first pins arranged uniformly at intervals, and the first pins are connected with the sun gear; the outer gear ring comprises a plurality of second pins arranged uniformly at intervals, and the second pins are connected with the first grinding disc.

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