Quartz parts fully automatic grinding device

Abstract

The invention relates to the technical field of quartz grinding, and discloses a fully automatic grinding device for quartz parts, comprising a cabinet, a cavity is arranged inside the cabinet, an upper grinding unit is installed on the top of the cabinet, a lower grinding unit is installed below the upper grinding unit, a drainage unit is installed on the surface of the upper grinding unit, a lower motor is installed at the bottom of the cabinet cavity, a lower grinding disc is installed on the output shaft of the lower motor, the screw rod is driven to rotate by the rotation of the planetary gear, and then a pumping effect is generated inside the oil passage, the above design cleverly solves the problem that the grinding liquid is difficult to evenly penetrate into the grinding area, especially the bottom position where the grinding part and the grinding surface are tightly fitted, as the screw rod rotates, the grinding liquid is continuously pumped into the oil extraction channel and is smoothly discharged through the drainage hole, this improvement not only improves the utilization rate of the grinding liquid, but also ensures that the grinding area always maintains sufficient grinding liquid for lubrication and cooling.

Description

Technical Field

[0001] The invention relates to the technical field of quartz grinding, in particular to a fully automatic grinding device for quartz parts. Background Art

[0002] The quartz grinding device is a double-sided grinding machine, which is mainly used for double-sided finishing of quartz parts. It is suitable for double-sided grinding of quartz parts or other thin and brittle materials with two parallel sides. Through the precise grinding process, it can ensure that the parallelism, flatness and thickness of the quartz parts meet high-precision requirements.

[0003] However, there are still some problems with the existing quartz grinding devices. First, the existing double-sided grinders mainly rely on external casting to supply grinding liquid. Although this method is simple and direct, it is difficult to form an effective grinding liquid passage at the grinding position. Since the grinding liquid can only flow in from the outside of the grinding area, and the grinding surface rotates and rubs continuously during the grinding process, it is difficult for the grinding liquid to evenly penetrate the entire grinding area, especially the bottom position where the grinding part and the grinding surface are tightly fitted.

[0004] This problem is particularly prominent in the traditional planetary gear working system for assembling the workpiece to be ground. While the planetary gear rotates, its bottom will be closely attached to the lower grinding surface, forming a relatively closed grinding space. This closed space not only hinders the free flow of the grinding fluid, but also makes it difficult to discharge the heat and grinding debris generated during the grinding process in time. The grinding fluid cannot fully flow to the bottom grinding position of the workpiece to be ground, resulting in a significant reduction in the grinding effect of this area. If the quartz parts are in this poor grinding state for a long time, it will not only be difficult to achieve the expected grinding accuracy and surface quality, but also may have serious problems such as local overheating, cracks, and even breakage. At the same time, since the grinding fluid cannot fully infiltrate the grinding area, impurities and dirt on the surface of the workpiece to be ground are also difficult to be effectively removed, thereby affecting the overall quality and performance of the quartz parts after grinding.

[0005] Second, when grinding quartz parts, pressure is usually applied to them to quickly remove excess material, and then the pressure is reduced to ensure surface quality. However, in the prior art, the change in pressure is initiated by a cylinder. Even if its parameters have been clearly specified, the compressibility of the gas means that the pressure transfer during the start and stop of the cylinder is not instantaneous and has a certain elasticity.

[0006] When the cylinder starts to apply pressure, the gas needs to be compressed in the space inside the cylinder and transferred to the grinding part, which will cause instantaneous pressure fluctuations. This instantaneous fluctuation will cause the pressure applied on the surface of the quartz part to be not completely stable as expected. When the pressure is too high, it is easy to form scratches or indentations on the surface of the quartz part.

[0007] Similarly, when the cylinder contracts, pressure fluctuations will occur. During the cylinder contraction process, gas is discharged from the cylinder. Due to the compressibility of the gas and the influence of the internal structure of the cylinder, the pressure reduction is not linear and smooth. When the pressure drops suddenly, the grinding parts will jump or slightly shift on the surface of the quartz part, resulting in irregular changes in the grinding track of the quartz part surface, thereby causing scratches or destroying the flatness of the already ground surface.

[0008] To this end, the present invention proposes a fully automatic grinding device for quartz parts. Summary of the invention

[0009] The object of the present invention is to provide a fully automatic grinding device for quartz parts to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic grinding device for quartz parts, comprising a cabinet, a cavity is arranged inside the cabinet, an upper grinding unit is installed on the top of the cabinet, a lower grinding unit is installed below the upper grinding unit, a drainage unit is installed on the surface of the upper grinding unit, a lower motor is installed at the bottom of the cabinet cavity, a lower grinding disc is installed on the output shaft of the lower motor, a spiral pumping assembly for additionally providing a grinding liquid overnight channel is arranged inside the lower grinding disc, and the spiral pumping assembly includes a plurality of oil flow channels, a screw rod and a drainage hole; the oil flow channel is used to create a new liquid flow channel through its own space; the screw rod is used to suck the grinding liquid on the surface of the lower grinding disc through its own rotation, so that the grinding liquid can accurately enter the grinding position; the drainage hole is used to discharge the grinding liquid after grinding through its own space.

[0011] Preferably, the oil passages are arranged in a circular shape and are equidistantly penetrated through the surface of the lower grinding disc, the screw rods are slidably connected to the inside of the oil passages, and the drainage holes are arranged below the screw rods.

[0012] Preferably, the spiral pumping assembly also includes a plurality of chassis, which are arranged in a circular shape and equidistantly fixed to the bottom of the lower grinding disc, and are concentric with the oil flow channel. Every two drainage holes are arranged as a group, and each group of drainage holes is opened through the surface of the chassis.

[0013] Preferably, the middle part of the chassis is threadedly connected with screws, the screws are slidably connected to the inside of the screw rod, the top of the screw rod is fixedly connected with a rectangular key, the fixed end of the lower motor is fixedly connected with a blocking plate, and the upper surface of the blocking plate is provided with a liquid collecting groove.

[0014] Preferably, a plurality of planetary wheels are arranged on the top of the lower grinding disc, and grooves matching the rectangular key shape are provided at the bottom of the planetary wheels, and a plurality of placement grooves are provided through the surface of the planetary wheels for placing quartz pieces.

[0015] Preferably, a magnetron pressure assembly for low-loss pressurization and decompression of the quartz piece is provided above the lower grinding disc, and the magnetron pressure assembly includes a coil, which is mounted on the top of the blocking disc, and an electric wire is mounted on the outer surface of the coil, and a power source is mounted on the end of the electric wire away from the coil.

[0016] Preferably, the power supply is fixedly connected to the side wall of the cabinet cavity, the lower grinding disc and the upper grinding unit are both provided with an inner cavity, a permanent magnetic disc is installed in the inner cavity of the upper grinding unit, and an electromagnetic magnetic disc is installed in the inner cavity of the lower grinding disc, the permanent magnetic disc is a permanent magnet, the electromagnetic magnetic disc is a non-contact electromagnet, and the magnetism of the electromagnetic magnetic disc is the same as that of the permanent magnetic disc.

[0017] Preferably, the blocking disk is made of magnetic-blocking material, the wire passes through the blocking disk, and an insulating layer is sleeved on the outer surface of the wire.

[0018] Preferably, an electric control panel is installed on the bottom outer surface of the upper grinding unit, and a circulation unit is installed in the internal cavity of the cabinet. The electric control panel electrically controls the start-up of the upper grinding unit, the lower grinding unit, the power supply and drainage unit, and the circulation unit.

[0019] Preferably, a pressure sensor is installed on the surface of the lower grinding unit, and the pressure sensor is electrically connected to the electric control console.

[0020] Preferably, the upper grinding unit includes a support arm, an upper motor, a cylinder, a fixed shaft and an upper grinding disc, the support arm is fixedly connected to the top of the cabinet, the cylinder is installed on the top of the support arm, and its output shaft passes through the top of the support arm, the upper motor is installed at the bottom of the cylinder output shaft, and the fixed shaft is installed between the output end of the upper motor and the upper grinding disc.

[0021] Preferably, the lower grinding unit includes an inner gear ring and a center gear, wherein the inner gear ring is fixedly connected to the top of the cabinet, the center gear is installed on the outer surface of the output shaft of the lower motor, and the center gear and the planetary gear are located in the same plane, and the center gear and the inner gear ring are meshed with the planetary gear.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. The rotation of the planetary gear drives the screw to rotate, thereby generating a pumping effect inside the oil flow channel. This design cleverly solves the problem that the grinding fluid is difficult to evenly penetrate into the grinding area, especially the bottom position where the grinding piece is tightly fitted with the grinding surface. As the screw rotates, the grinding fluid is continuously pumped into the oil extraction channel and discharged smoothly through the drainage hole. This improvement not only improves the utilization rate of the grinding fluid, but also ensures that the grinding area always has sufficient grinding fluid for lubrication and cooling. As a result, the heat and chips in the grinding process can be discharged in time, the grinding effect is significantly improved, and the grinding accuracy and surface quality of the quartz parts are greatly improved. At the same time, the full infiltration of the grinding fluid also helps to effectively remove impurities and dirt on the surface of the part to be ground, further improving the overall quality and performance of the quartz parts after grinding.

[0023] In addition, the improved scheme also provides a blocking plate and a liquid collection tank for collecting and recycling the discharged grinding liquid. The presence of the blocking plate and the liquid collection tank not only reduces the waste of grinding liquid and reduces production costs, but also helps to keep the grinding environment clean and tidy.

[0024] In order to meet the grinding needs of quartz parts of different sizes, this improved solution adopts a threaded connection between the screw and the base plate, and provides a U-shaped pad. By adding different numbers of U-shaped pads, the height of the planetary wheel can be flexibly adjusted to ensure that the bottom and top of the quartz part can be fully ground. This design not only improves the adaptability and flexibility of the grinder, but also further improves the grinding effect and grinding quality. Whether it is large or small quartz parts, they can be accurately and efficiently ground in the grinder of the present invention.

[0025] 2. The present invention adjusts the pressure by changing the magnetism of the electromagnetic disk so as to repel or attract the permanent disk, thereby improving the delay and fluctuation of pressure transmission in the prior art. The present invention uses magnetic force to adjust the pressure, and the response speed of magnetic force change is extremely fast, which can achieve rapid adjustment of pressure, which helps to apply stable pressure more efficiently in the stage of rapid removal of excess material and improve the speed of excess material removal. In the stage of ensuring surface quality, since the magnetic force can quickly and accurately adjust the pressure, it avoids the pressure being too high or too low in an instant, thereby reducing the generation of scratches and indentations on the surface of the quartz part, greatly improving the grinding quality of the quartz part surface, and improving the grinding accuracy and yield of the quartz part. At the same time, although the present invention has a cylinder, the presence of magnetic force reduces the influence of cylinder pressure fluctuations on grinding.

[0026] The prior art relies on starting the cylinder to change the pressure. Although the parameters are specified, the compressibility of the gas makes the pressure transmission of the cylinder non-instantaneous and elastic when starting and stopping. When pressure is applied, there will be instantaneous pressure fluctuations in the process of compressing the gas in the cylinder and transmitting it to the grinding part, resulting in unstable pressure on the surface of the quartz part, which is easy to form scratches or indentations; when the cylinder contracts, the pressure decreases nonlinearly and smoothly, which will cause the grinding part to jump or shift and destroy the surface flatness. The present invention uses the magnetic force of the electromagnetic disk and the permanent magnet to regulate the pressure. The magnetic force changes and responds quickly. In comparison, it can control the pressure more stably and accurately, effectively avoiding surface damage of the quartz part caused by pressure fluctuations, and has significant advantages in improving grinding quality.

[0027] Among them: a blocking disk with magnetic resistance is arranged below the coil, which can effectively avoid the influence of the magnetic field on the operation of the lower motor. In the overall structure of the present invention, due to the use of electromagnetic pressure control, the existence of the magnetic field will have an impact on the surrounding components, and by arranging a blocking disk below the coil, the magnetic field can be limited to a certain range, ensuring that the lower motor can operate normally and stably, thereby ensuring the overall stability and reliability of the grinding equipment.

[0028] Among them: an insulating layer is provided on the surface of the wire. This design is also to prevent electromagnetic interference. In the present invention, due to the existence of the mechanism of electromagnetic regulation pressure, the electromagnetic environment is relatively complex. The wire will be affected by the surrounding electromagnetic field and will also radiate electromagnetic field outward, interfering with the normal operation of other components. By providing an insulating layer on the surface of the wire, the propagation of the electromagnetic field can be effectively blocked to prevent it from interfering with other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front three-dimensional schematic diagram of the main structure of the present invention.

[0030] Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention.

[0031] Figure 3 It is a partially cutaway stereoscopic schematic diagram of the main structure of the present invention.

[0032] Figure 4 For the present invention Figure 3 Enlarged three-dimensional schematic diagram of the structure at point A in the middle.

[0033] Figure 5 For the present invention Figure 3 Enlarged three-dimensional schematic diagram of the structure at point B in the middle.

[0034] Figure 6 For the present invention Figure 3 Enlarged three-dimensional schematic diagram of the structure at point C in the middle.

[0035] Figure 7For the present invention Figure 3 Enlarged three-dimensional schematic diagram of the structure at point D in the middle.

[0036] Figure 8 For the present invention Figure 3 Enlarged three-dimensional schematic diagram of the structure at E in the middle.

[0037] Fig. 9 It is a schematic cross-sectional perspective view of the magnetic control pressure assembly of the present invention.

[0038] Fig.10 For the present invention Fig. 9 Enlarged three-dimensional schematic diagram of the structure at F in the middle.

[0039] In the figure: 11, cabinet; 12, upper grinding unit; 13, lower grinding unit; 131, lower motor; 132, lower grinding disc; 14, electric control console.

[0040] 2. Spiral pumping assembly; 21. Oil flow channel; 22. Chassis; 23. Drain hole; 24. Screw; 25. Lead screw; 26. Rectangular key; 27. Blocking plate; 28. Liquid collecting tank.

[0041] 3. Magnetron pressure assembly; 31. Coil; 32. Wire; 33. Power supply; 34. Electromagnetic disk; 35. Permanent magnetic disk. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that the upper grinding unit 12 includes a support arm, an upper motor, a cylinder, a fixed shaft and an upper grinding disc. The support arm is fixedly connected to the top of the cabinet 11, the cylinder is installed on the top of the support arm, and its output shaft passes through the top of the support arm, the upper motor is installed at the bottom of the cylinder output shaft, and the fixed shaft is installed between the output end of the upper motor and the upper grinding disc. At the same time, the rotation directions of the upper motor and the lower motor 131 are opposite. The permanent magnetic disk 35 is located in the cavity of the upper grinding disc, and its air cylinder moves, driving the upper motor and the upper grinding disc to move radially. When the upper motor is started, it drives the upper grinding disc to rotate in the opposite direction to the lower grinding disc 132, thereby achieving the purpose of grinding the upper surface of the quartz part.

[0044] The lower grinding unit 13 includes an inner gear ring and a center gear. The inner gear ring is fixedly connected to the top of the cabinet 11. The center gear is installed on the outer surface of the output shaft of the lower motor 131. The center gear and the planetary gear are located in the same plane. At the same time, the center gear and the inner gear ring are meshed with the planetary gear. It is started by the lower motor 131 and drives the lower grinding disc 132 and the center gear to rotate. Therefore, under the action of the meshing of the planetary gear with the center gear and the inner gear ring, the planetary gear revolves around the center gear.

[0045] The liquid discharge unit comprises a first liquid storage tank, a first water pump and a nozzle. The first water pump draws the grinding liquid from the liquid storage tank under pressure, and finally discharges the grinding liquid to the surface of the quartz piece through the nozzle and the upper grinding disc.

[0046] The circulation unit includes a second liquid storage tank, a second water pump and a pipeline. The second water pump uses pressure to pump the grinding liquid in the liquid receiving tank 28 from the pipeline to the second liquid storage tank, thereby realizing the recycling of the grinding liquid.

[0047] The structures and working principles of the upper grinding unit 12, the lower grinding unit 13, the lower motor 131, the lower grinding disc 132, the drainage unit and the circulation unit belong to the prior art, and thus will not be described in detail later.

[0048] Example 1: Please refer to Figures 1 to 6 As shown, the fully automatic grinding device for quartz parts includes a cabinet 11, a cavity is arranged inside the cabinet 11, an upper grinding unit 12 is installed on the top of the cabinet 11, a lower grinding unit 13 is installed below the upper grinding unit 12, a drainage unit is installed on the surface of the upper grinding unit 12, a lower motor 131 is installed at the bottom of the cavity of the cabinet 11, a lower grinding disc 132 is installed on the output shaft of the lower motor 131, and a spiral pumping assembly 2 for additionally providing a grinding liquid overnight channel is arranged inside the lower grinding disc 132, and the spiral pumping assembly 2 includes a plurality of oil passages 21, a screw rod 25 and a drainage hole 23; the oil passage 21 is used to create a new liquid passage through its own space; the screw rod 25 is used to suck the grinding liquid on the surface of the lower grinding disc 132 through its own rotation, so that the grinding liquid can accurately enter the grinding position; the drainage hole 23 is used to discharge the grinding liquid after grinding through its own space.

[0049] Please refer to Figures 1 to 6As shown, the oil passages 21 are arranged in an annular manner and equidistantly, penetrate through the surface of the lower grinding disc 132, the screw rods 25 are slidably connected to the inside of the oil passages 21, and the drainage holes 23 are arranged below the screw rods 25. The spiral pumping assembly 2 also includes a plurality of chassis 22, which are arranged in an annular manner and equidistantly, and fixedly connected to the bottom of the lower grinding disc 132. The chassis 22 are concentric with the oil passages 21, and every two drainage holes 23 are set as a group, and each group of drainage holes 23 penetrates through the surface of the chassis 22. The middle part of the chassis 22 is threadedly connected with screws 24, and the screws 24 are slidably connected to the inside of the screw rod 25. The top of the screw rod 25 is fixedly connected with a rectangular key 26. The fixed end of the lower motor 131 is fixedly connected with a blocking plate 27. The upper surface of the blocking plate 27 is provided with a liquid collecting groove 28. A plurality of planetary gears are arranged on the top of the lower grinding disc 132. The bottom of the planetary gears is provided with grooves that are compatible with the shape of the rectangular key 26. A plurality of placement grooves are provided on the surface of the planetary gears for placing quartz parts.

[0050] It should be noted that an electric control panel 14 is installed on the outer surface of the bottom side of the upper grinding unit 12, and a circulation unit is installed in the internal cavity of the cabinet 11. The electric control panel 14 electrically controls the start-up of the upper grinding unit 12, the lower grinding unit 13, the power supply 33 drainage unit and the circulation unit. A pressure sensor is installed on the surface of the lower grinding unit 13, and the pressure sensor is electrically connected to the electric control panel 14. A U-shaped gasket can be installed between the screw 24 and the chassis 22. The height of the planetary gear can be adjusted by adjusting the number of U-shaped gaskets, so as to adapt to quartz parts of different sizes.

[0051] Specifically, the operator places the quartz piece in the placement groove of the planetary wheel, and then drives the upper grinding unit 12, the lower motor 131 and the drainage unit to start with the help of the electric control console 14. At this time, the cylinder begins to extend, and the upper motor is driven accordingly, thereby driving the upper grinding disc to rotate. At the same time, the lower motor 131 will prompt the lower grinding disc 132 on its surface to rotate in the opposite direction of the upper grinding disc. Driven by the lower motor 131, the central gear begins to rotate, and due to the limiting effect of the inner gear ring, the planetary wheel revolves around the central gear. When this process starts, the upper grinding disc contacts the upper surface of the quartz piece, and the pressure sensor monitors the pressure in real time and sends an electrical signal to the electric control console 14. After receiving the signal, the electric control console 14 controls the cylinder to close, and the drainage unit discharges the grinding fluid to the surface of the planetary wheel and the quartz piece.

[0052] During this stage, the upper grinding disc continues to rotate under the drive of the upper motor, and the lower grinding disc 132 also keeps rotating under the drive of the lower motor 131. The lower grinding disc 132 and the upper grinding disc perform bidirectional grinding on the surface of the quartz piece. During this process, since the lower grinding disc 132 rotates, all parts on its surface must rotate with the lower grinding disc 132, that is, at this time, the planetary gear begins to rotate while revolving around the lower grinding disc 132 as the center.

[0053] Specifically, when the planetary wheel starts to rotate, the groove on the bottom thereof which is adapted to the shape of the rectangular key 26 will fit tightly with the rectangular key 26 , thereby driving the screw rod 25 to rotate synchronously.

[0054] Since the screw rod 25 is slidably connected to the inside of the oil flow channel 21, and the oil flow channel 21 is arranged in a circular shape and is equidistantly penetrates the surface of the lower grinding disc 132, the rotation of the screw rod 25 will produce a pumping effect inside the oil flow channel 21. This effect is mainly caused by the fact that the rotation of the screw rod 25 will produce shear force and stirring force on the grinding fluid around it, causing the grinding fluid to form eddy currents and turbulence inside the oil flow channel 21, thereby enhancing the fluidity and permeability of the grinding fluid.

[0055] During the rotation of the screw 25, the grinding liquid will be continuously sucked and pushed, forming a dynamic circulating flow. This flow can not only suck the grinding liquid from the upper end of the oil channel 21, but also push the grinding liquid to the lower end of the oil channel 21, thereby realizing the effective liquid flow and sufficient infiltration of the grinding position. Since the flow of the grinding liquid inside the oil channel 21 is continuous, it can ensure that the grinding position always has sufficient grinding liquid for lubrication and cooling, thereby improving the grinding efficiency and grinding quality.

[0056] After flowing through the oil passage 21, the grinding fluid can be smoothly discharged through the drainage hole 23 and flow into the liquid collecting groove 28 opened on the surface of the blocking plate 27. At this time, the operator can start the circulation unit and make the circulation unit collect the discharged grinding fluid for subsequent recycling.

[0057] Example 2: Please refer to Figures 1 to 3 as well as Figures 7 to 10 As shown, on the basis of Example 1, a magnetron pressure assembly 3 for low-loss pressurization and decompression of the quartz piece is arranged above the lower grinding disc 132, and the magnetron pressure assembly 3 includes a coil 31, and the coil 31 is installed on the top of the blocking disc 27, and an electric wire 32 is installed on the outer surface of the coil 31, and a power supply 33 is installed at the end of the electric wire 32 away from the coil 31.

[0058] Please refer to Figures 1 to 3 as well as Figures 7 to 10 As shown, the power supply 33 is fixedly connected to the side wall of the cavity of the cabinet 11, the lower grinding disc 132 and the upper grinding unit 12 are both provided with an inner cavity, a permanent magnetic disc 35 is installed in the inner cavity of the upper grinding unit 12, and an electromagnetic magnetic disc 34 is installed in the inner cavity of the lower grinding disc 132. The permanent magnetic disc 35 is a permanent magnet, and the electromagnetic magnetic disc 34 is a non-contact electromagnet, and the magnetic properties of the electromagnetic magnetic disc 34 are the same as those of the permanent magnetic disc 35.

[0059] It should be noted that the blocking disk 27 is made of magnetic-resistance material, specifically copper, and the wire 32 passes through the blocking disk 27 . The outer surface of the wire 32 is sheathed with an insulating layer, specifically a polyethylene insulating layer.

[0060] Specifically, in the initial stage of polishing the quartz part, the operator can electrically control the power supply 33 through the electric control console 14. When the power supply 33 is powered on, the current will be transmitted to the coil 31 through the wire 32. According to the principle of electromagnetic induction, when the current passes through the coil 31, a magnetic field will be generated inside the coil 31.

[0061] Since the electromagnetic disk 34 is a non-contact electromagnet and its initial magnetism is the same as that of the permanent magnet 35, when the magnetic field generated by the coil 31 acts on the electromagnetic disk 34, since the electromagnetic disk 34 is an electromagnet, its internal magnetic domains will be rearranged under the action of the external magnetic field, thereby changing its magnetism.

[0062] At this time, the magnetism of the electromagnetic magnetic disk 34 and the permanent magnetic disk 35 are opposite, and there is a magnetic attraction between the two. From the perspective of force transmission, the permanent magnetic disk 35 in the upper grinding unit 12 is affected by the magnetic attraction and tends to move downward, while the electromagnetic magnetic disk 34 in the lower grinding disk 132 is affected by the upward magnetic attraction. Since the upper grinding unit 12 includes components such as the upper grinding disk, and the lower grinding disk 132 is part of the grinding structure, this magnetic attraction will cause the distance between the upper grinding disk and the lower grinding disk 132 to tend to decrease, thereby increasing the pressure between the two. For quartz parts, there are some excess residues on their surface in the initial stage of grinding. Increasing the pressure helps to remove these excess residues more efficiently.

[0063] As the grinding continues, the electric control console 14 will control the cylinder to continue to extend. Since the excess material on the surface of the quartz piece has been removed by pressurization, the subsequent grinding needs to ensure its surface flatness, so the pressure needs to be reduced. At this time, the electric control console 14 electrically controls the power supply 33 to turn off. After the power supply 33 is powered off, the wire 32 no longer conducts current to the coil 31. After the coil 31 loses current, according to the principle of electromagnetic induction, the magnetic field it generates disappears. At this time, the magnetism of the electromagnetic disk 34 returns to the initial state, that is, the same as the magnetism of the permanent disk 35, so the magnetism of the electromagnetic disk 34 repels the magnetism of the permanent disk 35.

[0064] When magnetic repulsion is generated between the electromagnetic magnetic disk 34 and the permanent magnetic disk 35, the permanent magnetic disk 35 in the upper grinding unit 12 will be subjected to an upward repulsive force, and the electromagnetic magnetic disk 34 in the lower grinding disk 132 will be subjected to a downward repulsive force. This repulsive force will cause the upper grinding disk and the lower grinding disk 132 to tend to move away from each other, thereby reducing the pressure between the two. From the perspective of force balance, the previous magnetic attraction force caused a large pressure between the upper grinding disk and the lower grinding disk 132. Now the magnetic repulsion interacts with the previous pressure to reduce the overall pressure.

[0065] During the entire grinding process, the pressure sensor always monitors the changes in the pressure on the quartz piece and feeds back the signal to the control console 14. The control console 14 can accurately control the power supply status of the power supply 33, the extension of the cylinder, etc. based on these signals to ensure that the pressure is within an appropriate range, which can effectively remove the excess material without causing excessive pressure on the quartz piece and causing damage. During the decompression stage, the pressure sensor also monitors the pressure changes so that the control console 14 can accurately determine whether the pressure has been reduced to a level suitable for ensuring the surface flatness of the quartz piece.

[0066] Finally, when the quartz piece is polished, the operator controls the electric control console 14 to reset the upper grinding unit 12 and the lower grinding unit 13 so that the entire grinding device returns to the initial state, and then the operator can take out the quartz piece.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic grinding device for quartz parts, comprising a cabinet (11), wherein a cavity is arranged inside the cabinet (11), an upper grinding unit (12) is installed on the top of the cabinet (11), a lower grinding unit (13) is installed below the upper grinding unit (12), and a drainage unit is installed on the surface of the upper grinding unit (12), characterized in that: A lower motor (131) is installed at the bottom of the cavity of the cabinet (11); a lower grinding disc (132) is installed on the output shaft of the lower motor (131); a spiral pumping assembly (2) for providing an additional overnight channel for grinding liquid is arranged inside the lower grinding disc (132); the spiral pumping assembly (2) comprises a plurality of oil passages (21), a screw rod (25) and a liquid discharge hole (23); The oil passage (21) is used to create a new liquid passage through its own space; The screw rod (25) is used to suck the grinding liquid on the surface of the lower grinding disc (132) by rotating itself, so that the grinding liquid accurately enters the grinding position; The drainage hole (23) is used to discharge the grinding liquid after grinding through its own space; The oil passages (21) are all arranged in an annular manner and are equidistantly disposed through the surface of the lower grinding disc (132); the screw rods (25) are all slidably connected to the inside of the oil passages (21); and the drainage holes (23) are all arranged below the screw rods (25); The spiral pumping assembly (2) further comprises a plurality of chassis (22), the chassis (22) being arranged in an annular shape and equidistantly fixedly connected to the bottom of the lower grinding disc (132), the chassis (22) being concentric with the oil passage (21), and every two drainage holes (23) being arranged as a group, and each group of drainage holes (23) being penetrated and opened on the surface of the chassis (22); The middle of the chassis (22) is threadedly connected with a screw (24), and the screw (24) is slidably connected to the inside of the screw rod (25). The top of the screw rod (25) is fixedly connected with a rectangular key (26). The fixed end of the lower motor (131) is fixedly connected with a blocking plate (27), and the upper surface of the blocking plate (27) is provided with a liquid collecting groove (28).

2. The fully automatic quartz grinding device according to claim 1 is characterized in that: A plurality of planetary wheels are arranged on the top of the lower grinding disc (132), a groove matching the shape of the rectangular key (26) is opened at the bottom of each planetary wheel, and a plurality of placement grooves are opened on the surface through which the planetary wheel passes.

3. The fully automatic quartz grinding device according to claim 1 is characterized in that: A magnetic control pressure assembly (3) for low-loss pressurization and decompression of the quartz piece is arranged above the lower grinding disc (132), and the magnetic control pressure assembly (3) comprises a coil (31), the coil (31) is mounted on the top of the blocking disc (27), an electric wire (32) is mounted on the outer surface of the coil (31), and a power source (33) is mounted on one end of the electric wire (32) away from the coil (31).

4. The fully automatic quartz grinding device according to claim 3 is characterized in that: The power supply (33) is fixedly connected to the side wall of the cavity of the cabinet (11); the lower grinding disc (132) and the upper grinding unit (12) are both provided with an inner cavity; a permanent magnetic disc (35) is installed in the inner cavity of the upper grinding unit (12); an electromagnetic magnetic disc (34) is installed in the inner cavity of the lower grinding disc (132); the permanent magnetic disc (35) is a permanent magnet; the electromagnetic magnetic disc (34) is a non-contact electromagnet; and the magnetic properties of the electromagnetic magnetic disc (34) are the same as those of the permanent magnetic disc (35).

5. The fully automatic quartz grinding device according to claim 3 is characterized in that: The blocking disk (27) is made of a magnetic-blocking material, the electric wire (32) passes through the blocking disk (27), and the outer surface of the electric wire (32) is sheathed with an insulating layer.

6. The fully automatic quartz grinding device according to claim 1 is characterized in that: An electric control panel (14) is installed on the outer surface of the bottom side of the upper grinding unit (12), and a circulation unit is installed in the internal cavity of the cabinet (11). The electric control panel (14) electrically controls the start-up of the upper grinding unit (12), the lower grinding unit (13), the power supply (33), the drainage unit, and the circulation unit.

7. The fully automatic quartz grinding device according to claim 1 is characterized in that: A pressure sensor is installed on the surface of the lower grinding unit (13), and the pressure sensor is electrically connected to the electric control console (14).

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