Diamond grinding disc device and system thereof

Abstract

The invention discloses a diamond grinding disc device and a system thereof, and relates to the technical field of diamond and grinding machining. The device comprises a grinding disc for grinding a diamond raw material, a jig ring for placing the diamond raw material to be processed, a driving gear and an outer gear ring, wherein a photoelectric probe, a grinding cooling liquid spray head and a gas-liquid mixing spray head are arranged on the outer gear ring. The grinding device is further provided with a control system, the positions of the photoelectric probe, the grinding cooling liquid spray head and the gas-liquid mixing spray head can be coded, the movement trend of the jig ring is monitored, the output strength of the grinding cooling liquid spray head is controlled according to the movement trend, and after grinding operation is finished, the gas-liquid mixing spray head can firstly clean the grinding disc and then dry the grinding disc. The system is used for grinding diamond raw materials, the relation between energy consumption and machining requirements is balanced, meanwhile, residual powder in the grinding process can be removed, and the surface flatness and the size precision of diamond finished products are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diamond and grinding processing, and particularly relates to a diamond grinding disc device and a system thereof. BACKGROUND

[0002] The existing diamond raw material grinding device adopts a "global fixed parameter" mode when supplying cooling liquid, that is, the cooling liquid spray head continuously sprays at a preset rate and temperature, which cannot match the dynamic position of the jig ring. When the jig ring drives the diamond raw material to approach the spray head area, excessive cooling liquid is easy to accumulate on the grinding surface, which not only causes resource waste, but also dilutes the grinding pressure and affects the grinding efficiency. When the jig ring is far away from the spray head area, the fixed spray intensity is insufficient to quickly remove the diamond powder generated during grinding, which causes the powder to accumulate on the surface of the grinding disc.

[0003] In addition, the harm of residual powder is particularly significant. The diamond powder has high hardness, and if it is not removed in real time, it is easy to be mixed between the raw material and the grinding disc to form "secondary grinding", which causes scratches and flatness deviation on the surface of the raw material, and reduces the qualified rate of the finished product.

[0004] In summary, for the contradiction between the grinding efficiency, effect and energy consumption of the above-mentioned diamond raw material, and the adverse phenomena occurring in the grinding quality control process, how to effectively overcome it becomes a technical problem to be solved. SUMMARY

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application provides a diamond grinding disc device, which comprises a grinding disc for diamond raw material grinding, a jig ring for placing the diamond raw material to be processed, a driving gear and an outer gear ring. The driving gear is located in the inner periphery of the grinding disc, and the outer gear ring is located in the outer periphery of the grinding disc. The jig ring is located between the driving gear and the outer gear ring, the outer ring side of the jig ring is provided with a tooth opening, and the tooth opening is engaged with the driving gear and the outer gear ring respectively. The adjacent tooth openings of the outer gear ring are provided with a tooth groove, the outer gear ring is provided with a plurality of radially distributed threaded holes, and the threaded holes are aligned and penetrated with the tooth grooves. The outer gear ring is further provided with a plurality of photoelectric probes, a plurality of grinding cooling liquid spray heads and a gas-liquid mixed spray head, the photoelectric probes and the grinding cooling liquid spray heads are alternately arranged, and the gas-liquid mixed spray head comprises a gas pipe and a liquid pipe.

[0007] Preferably, the device further comprises a driving device, the output end of the driving device is connected with the driving gear, and the driving device comprises a servo driving motor and a reduction gear.

[0008] Preferably, the jig ring is a plurality of, and the plurality of jig rings are equally spaced between the driving gear and the outer gear ring.

[0009] Preferably, an inner gap is reserved between the driving gear and the grinding disc, and an outer gap is reserved between the outer tooth ring and the grinding disc.

[0010] Preferably, the photoelectric probes and the grinding coolant nozzles are alternately and uniformly arranged along the ring direction of the outer tooth ring. The ring direction distance between two adjacent photoelectric probes is equal to the ring direction distance between two adjacent grinding coolant nozzles, and the detection direction of the photoelectric probe and the spraying direction of the grinding coolant nozzle are both towards the central area of the grinding disc.

[0011] Preferably, the photoelectric probe, the grinding coolant nozzle and the gas-liquid mixed nozzle are all provided with a screw head structure, and each screw head structure is screwed into the threaded hole of the outer tooth ring. The outer circumferential surface of the screw head structure is provided with external threads, and the external threads are matched with the internal threads of the threaded hole of the outer tooth ring.

[0012] Preferably, the gas pipe of the gas-liquid mixed nozzle is communicated with an external gas source, and the liquid pipe is communicated with an external coolant supply device. The gas control valve is arranged on the gas pipe, and the liquid control valve is arranged on the liquid pipe.

[0013] The application provides a control system of a diamond grinding disc device, and the control system comprises the following contents.

[0014] The coding unit is used for coding the ring direction positions of the photoelectric probe, the grinding coolant nozzle and the gas-liquid mixed nozzle relative to the outer tooth ring.

[0015] The photoelectric monitoring and analyzing unit is electrically connected with the photoelectric probe, obtains the distance information detected by the photoelectric probe and analyzes the shielding condition of the jig ring.

[0016] The motion trend analyzing unit is connected with the photoelectric monitoring and analyzing unit, classifies the photoelectric probes which are adjacent in the coded positions and detect the jig ring into the same monitoring group, analyzes the motion trend of the jig ring according to the distance parameter changes of the photoelectric probes in the same monitoring group, and determines the grinding coolant nozzles in the same monitoring group region. The motion trend analyzing unit classifies the photoelectric probes which are adjacent and do not detect the jig ring into the zero monitoring region group. The motion trend includes the approaching motion trend and the moving away motion trend. The approaching motion trend is the motion trend when the distance detected by the photoelectric probe gradually decreases, and the moving away motion trend is the motion trend when the distance detected by the photoelectric probe gradually increases.

[0017] The cooling output control unit is connected with the motion trend analyzing unit and outputs and controls the grinding coolant nozzle. The output intensity of the grinding coolant nozzle is controlled according to the motion trend and the distance parameter of the jig ring. The output intensity of the grinding coolant nozzle includes the spraying rate of the grinding coolant and the temperature of the grinding coolant.

[0018] The application also provides a control method of a diamond grinding disc device, and the contents are as follows.

[0019] S1. Start the grinding disc device, drive the gear to rotate steadily at the preset speed, drive multiple jig rings to perform planetary motion, and the diamond raw material to be processed starts grinding operation synchronously with the jig rings.

[0020] S2. Simultaneously, the photoelectric monitoring and analysis unit is activated to collect distance information detected by each photoelectric probe in real time.

[0021] S3. The motion trend analysis unit filters out the photoelectric probes that detect the jig ring, assigns photoelectric probes with adjacent coded positions to the same monitoring group, and locks the grinding coolant nozzles in the corresponding area of ​​the group.

[0022] S4. Based on the changes in the distance parameters of the photoelectric probes within the same monitoring group, determine the movement trend of the fixture ring and identify whether it is a trend of moving closer or moving further away.

[0023] S5. When the motion trend is close to the motion trend, the spray rate and temperature of the grinding coolant from the grinding coolant nozzle both decrease. When the motion trend is far from the motion trend, the spray rate and temperature of the grinding coolant from the grinding coolant nozzle both increase.

[0024] S6. The grinding coolant nozzles in the zero-monitoring zone group remove residual grinding powder from the surface of the grinding disc by maximizing the spray rate and temperature away from the motion trend.

[0025] S7. After the grinding operation is completed, start the gas-liquid mixing nozzle, first spray cleaning fluid through the liquid pipe to clean the grinding disc, then close the liquid pipe and open the gas pipe to dry the grinding disc.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In this invention, by alternating and uniformly arranging photoelectric probes and grinding coolant nozzles, combined with an encoding unit and a motion trend analysis unit, the position and motion trend (approaching or moving away) of the jig ring can be monitored in real time. The cooling output control unit dynamically adjusts the coolant output intensity. When the jig ring approaches, the spray speed and temperature are reduced to retain the coolant needed for lubrication while avoiding waste; when it moves away, the parameters are increased for rapid powder removal. Simultaneously, the zero-monitoring area performs powder removal control according to high-speed, non-low-temperature grinding coolant flow parameters, removing residual powder from the surface of the grinding disc in real time. This prevents powder from being trapped between the raw material and the grinding disc, affecting processing accuracy and improving the surface smoothness and dimensional accuracy of the finished diamond product. Attached Figure Description

[0028] Figure 1 This is a top view of the diamond grinding disc device in this invention.

[0029] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0030] Figure 3 For Figure 1 Structure diagram of local amplification at B.

[0031] Figure 4 Control logic diagram of the diamond grinding disc device in the application.

[0032] Wherein: 1-grinding disc; 2-jig ring; 3-driving gear; 4-outer gear ring, 401-gear slot, 402-thread hole; 5-inner gap; 6-outer gap; 7-optoelectronic probe; 8-grinding coolant spray head; 9-gas-liquid mixed spray head, 901-gas pipe, 902-liquid pipe. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the application more clear and understandable, the application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described here are only used to explain the application and do not limit the application.

[0034] Example one, the application designs a diamond grinding disc device, combined with Figures 1 to 3 The specific structure configuration is as follows:

[0035] (I) core bearing and transmission assembly

[0036] Grinding disc 1: as the core bearing component of diamond raw material grinding, it provides the basic working plane for grinding operation, and the diamond raw material to be processed is placed on its surface through the jig ring 2, and the planetary motion of the jig ring 2 is realized to realize grinding processing.

[0037] Jig ring 2: used for placing the diamond raw material to be processed, the number is multiple, and the multiple jig rings 2 are distributed at equal intervals between the driving gear 3 and the outer gear ring 4. The outer ring side of the jig ring 2 is provided with a tooth opening, which is engaged with the driving gear 3 and the outer gear ring 4 respectively, and can be driven to move along the trajectory of the outer gear ring 4 under the driving of the driving gear 3, to drive the internal diamond raw material to be processed to complete grinding on the grinding disc 1 at the same time.

[0038] Driving gear 3: located in the inner periphery of the grinding disc 1, connected with the output end of the driving device (servo driving motor and reduction gear), is the power transmission core of the movement of the jig ring 2. When the driving gear 3 rotates stably at a predetermined speed, it drives multiple jig rings 2 to move synchronously in a planetary manner through the engagement of the tooth opening on the outer ring side of the jig ring 2; at the same time, the inner gap 5 is reserved between the driving gear 3 and the grinding disc 1 to avoid frictional interference between the driving gear 3 and the grinding disc 1 during rotation.

[0039] Outer tooth ring 4: located at the periphery of the grinding disc 1, engaged with the outer ring side tooth of the jig ring 2, used to limit the movement trajectory of the jig ring 2, ensure the stable planetary motion of the jig ring 2. The outer gap 6 is reserved between the outer tooth ring 4 and the grinding disc 1 to prevent friction between the outer tooth ring 4 and the grinding disc 1 during operation; the adjacent tooth gaps 401 are provided between the outer tooth ring 4, and the outer tooth ring 4 is provided with a plurality of radially distributed threaded holes 402, which are aligned with and penetrate the tooth gaps 401, for mounting the photoelectric probe 7, the grinding cooling liquid spray head 8 and the gas-liquid mixed spray head 9.

[0040] (Gap structure)

[0041] Inner gap 5: reserved between the driving gear 3 and the grinding disc 1, which is used to avoid direct contact and friction between the driving gear 3 and the grinding disc 1 when driving the jig ring 2 to rotate, and to ensure smooth rotation of the driving gear 3 and surface integrity of the grinding disc 1.

[0042] Outer gap 6: reserved between the outer tooth ring 4 and the grinding disc 1, used to prevent friction between the outer tooth ring 4 and the grinding disc 1 when limiting the movement trajectory of the jig ring 2, and to ensure the normal work of the grinding disc 1 and the structural stability of the outer tooth ring 4.

[0043] (Three) detection and spraying assembly

[0044] Photoelectric probe 7: multiple, configured on the outer tooth ring 4, provided with a screw pipe head structure (the outer circumferential surface of the screw pipe head structure is provided with external threads, which are matched with the internal threads of the threaded holes 402 of the outer tooth ring 4), and is screwed into the threaded holes 402 of the outer tooth ring 4 through the screw pipe head structure. The photoelectric probe 7 is alternately and uniformly arranged along the circumferential direction of the outer tooth ring 4 with the grinding cooling liquid spray head 8, the circumferential distance between the adjacent two photoelectric probes 7 is equal to the circumferential distance between the adjacent two grinding cooling liquid spray heads 8, and the detection direction of the photoelectric probe 7 is towards the central area of the grinding disc 1. Its function is to detect the distance information between the jig ring 2 in real time, to provide data support for analyzing the shielding condition and movement trend of the jig ring 2, and to be electrically connected with the photoelectric monitoring and analysis unit in the control system.

[0045] Grinding cooling liquid spray head 8: multiple, configured on the outer tooth ring 4, also provided with a screw pipe head structure, screwed into the threaded holes 402 of the outer tooth ring 4 through the screw pipe head structure. Along the circumferential direction of the outer tooth ring 4, the photoelectric probe 7 is alternately and uniformly arranged, and the spraying direction is towards the central area of the grinding disc 1, used to spray grinding cooling liquid to the working area of the grinding disc 1, to realize the functions of cooling, lubrication and removing grinding powder. The grinding cooling liquid spray head 8 is connected with the cooling output control unit in the control system, and the output intensity (including the spraying rate and temperature of the grinding cooling liquid) can be controlled by the cooling output control unit according to the movement trend and distance parameters of the jig ring 2.

[0046] Gas-liquid mixing nozzle 9: arranged on the outer tooth ring 4, provided with a screw pipe head structure, screwed into the threaded hole 402 of the outer tooth ring 4 through the screw pipe head structure, including a gas pipe 901 and a liquid pipe 902. Among them, the gas pipe 901 is communicated with the external gas source, and the gas control valve (for controlling the gas on-off of the gas pipe 901) is arranged on the gas pipe 901. The liquid pipe 902 is communicated with the external cooling liquid supply device, and the liquid control valve (for controlling the liquid on-off of the liquid pipe 902) is arranged on the liquid pipe 902. The core function of the gas-liquid mixing nozzle 9 is to clean and dry the grinding disc 1 after the grinding operation: first, the liquid pipe 902 sprays cleaning liquid to clean the grinding disc 1, and after cleaning, the liquid pipe 902 is closed, the gas pipe 901 is opened, and the gas pipe 901 is used to transport gas to dry the grinding disc 1.

[0047] (Four) driving device

[0048] It includes a servo drive motor and a speed reduction gear, and the output end of the speed reduction gear is connected with the driving gear 3 to provide power for the driving gear 3. In operation, the servo drive motor cooperates with the speed reduction gear to drive the driving gear 3 to rotate at a preset speed stably, and then drives the plurality of jig rings 2 to move in a planetary manner through the meshing relationship between the driving gear 3 and the jig rings 2, so that the grinding operation is stable and controllable.

[0049] In the embodiment, a control system of the diamond grinding disc device is designed, the control system realizes monitoring of the motion state of the jig ring 2 and intelligent control of the grinding cooling liquid nozzle 8 and the gas-liquid mixing nozzle 9, and the control system includes an encoding unit, a photoelectric monitoring and analyzing unit, a motion trend analyzing unit and a cooling output control unit.

[0050] (I) Encoding unit

[0051] The encoding unit is used for encoding the circumferential positions of the photoelectric probe 7, the grinding cooling liquid nozzle 8 and the gas-liquid mixing nozzle 9 relative to the outer tooth ring 4 to generate unique position identifiers of the components. The encoding provides a position basis for subsequent determination of the relative position relationship of the components, division of the monitoring groups and the zero monitoring area groups and accurate matching of the grinding cooling liquid nozzle 8 and the photoelectric probe 7.

[0052] (II) Photoelectric monitoring and analyzing unit

[0053] The photoelectric monitoring and analyzing unit is electrically connected with the photoelectric probe 7 and can receive and collect the distance information between the photoelectric probe 7 and the jig ring 2 in real time, analyze the shielding condition of the jig ring 2 (that is, determine whether the photoelectric probe 7 is shielded by the jig ring 2 and then determine whether the jig ring 2 is detected) according to the distance information, and transmit the shielding condition and the corresponding distance data to the motion trend analyzing unit in real time.

[0054] (III) Motion trend analyzing unit

[0055] The photoelectric monitoring and analyzing unit is connected with a core analysis module of the control system, and the specific functions include:

[0056] Monitoring group division and nozzle matching: the photoelectric probes 7 determined by the photoelectric monitoring and analyzing unit as "detecting the tool ring 2" are screened out, and these photoelectric probes 7 with adjacent code positions are classified into the same monitoring group. Meanwhile, according to the code positions of the photoelectric probes 7 in the monitoring group, the corresponding grinding coolant nozzles 8 in the region of the monitoring group are determined, so as to realize the region correspondence of "photoelectric probe-nozzle".

[0057] Motion trend judgment: according to the distance parameter changes of each photoelectric probe 7 in the same monitoring group transmitted in real time, the motion trend of the tool ring 2 is analyzed. The motion trend is divided into two categories: one is the approaching motion trend, that is, the distance between the photoelectric probe 7 and the tool ring 2 detected by the photoelectric probe 7 gradually decreases; the other is the away motion trend, that is, the distance between the photoelectric probe 7 and the tool ring 2 detected by the photoelectric probe 7 gradually increases.

[0058] Zero monitoring region group division: the photoelectric probes 7 with adjacent code positions and determined by the photoelectric monitoring and analyzing unit as "not detecting the tool ring 2" are classified into the zero monitoring region group, and the corresponding grinding coolant nozzles 8 of the region group are determined.

[0059] (Four) cooling output control unit

[0060] The motion trend analysis unit is connected with the motion trend analysis unit, which is used to accurately control the output intensity (grinding coolant spraying rate, grinding coolant temperature) of the grinding coolant nozzle 8 according to the "tool ring 2 motion trend" and "distance parameter" output by the motion trend analysis unit. The specific control logic is as follows:

[0061] Approaching motion trend control: when the tool ring 2 is in the approaching motion trend, the grinding coolant spraying rate and temperature of the grinding coolant nozzle 8 in the corresponding monitoring group region are reduced; the smaller the distance parameter (the closer the tool ring 2 to the photoelectric probe 7), the lower the grinding coolant spraying rate and the grinding coolant temperature, until the spraying rate is reduced to zero (at this time, the outlet of the grinding coolant nozzle 8 is completely blocked by the tool ring 2, and the liquid has no actual effect), and the grinding coolant temperature is reduced to the preset minimum value T min . This control can cool the area about to enter the grinding in advance, and retain an appropriate amount of coolant on the surface of the grinding disc 1 for lubrication.

[0062] Away motion trend control: when the tool ring 2 is in the away motion trend, the grinding coolant spraying rate and temperature of the grinding coolant nozzle 8 in the corresponding monitoring group region are increased, and the greater the distance parameter (the farther the tool ring 2 from the photoelectric probe 7), the higher the spraying rate and the grinding coolant temperature, until the spraying rate is increased to the preset maximum value V max、 , and the grinding coolant temperature is increased to the preset maximum value T maxThis control can quickly flush away residual grinding powder on the surface of the grinding disc 1, while avoiding energy waste caused by low-temperature coolant.

[0063] Zero-monitoring zone group control: Within the zero-monitoring zone group, the grinding coolant nozzle 8 is controlled according to the maximum parameter of "away from motion trend" (spray rate = V). max Grinding coolant temperature = T max Spraying liquid thoroughly removes the grinding powder remaining on the surface of the grinding disc 1, preventing the powder remaining after grinding in the upstream fixture ring 2 from adversely affecting the grinding accuracy of the raw material in the subsequent fixture ring 2.

[0064] Example 3: The present invention also designs a control method for a diamond grinding disc device, the details of which are as follows:

[0065] S1. Start the grinding disc device. The drive equipment (servo drive motor and reduction gear) drives the drive gear 3 to rotate stably at the preset speed. The drive gear 3 meshes with the outer ring teeth of the jig ring 2, driving multiple jig rings 2 to perform planetary motion. The diamond raw material to be processed placed in the jig ring 2 starts grinding on the grinding disc 1 synchronously with the jig ring 2.

[0066] S2. Simultaneously, the photoelectric monitoring and analysis unit is activated. This unit collects the distance information between each photoelectric probe 7 and the fixture ring 2 in real time, analyzes the obstruction of each photoelectric probe 7 by the fixture ring 2, and transmits the data to the motion trend analysis unit in real time.

[0067] S3. The motion trend analysis unit selects photoelectric probes 7 that "detect jig ring 2", assigns photoelectric probes 7 with adjacent coding positions to the same monitoring group, and locks the grinding coolant nozzles 8 in the corresponding area of ​​the monitoring group according to the coding position of the monitoring group.

[0068] S4. The motion trend analysis unit determines the motion trend of the fixture ring 2 based on the change in distance parameters of the photoelectric probe 7 within the same monitoring group, and determines whether it is a "moving trend towards" (distance gradually decreases) or a "moving trend away from" (distance gradually increases).

[0069] S5. The cooling output control unit controls the grinding coolant nozzle 8 in the corresponding area according to the judgment result of the motion trend analysis unit: if it is close to the motion trend, the spray rate and temperature are reduced; if it is far away from the motion trend, the spray rate and temperature are increased.

[0070] S6, within the zero-monitoring area group assigned by the motion trend analysis unit, the grinding coolant nozzle 8 is set to the maximum spray rate (V) "away from motion trend". max ) and temperature (T) max Spray liquid to remove residual grinding powder from the surface of grinding disc 1.

[0071] S7, after the grinding operation is completed, the gas-liquid mixed nozzle 9 is started: first, the liquid pipe 902 of the gas-liquid mixed nozzle 9 sprays cleaning liquid to clean the grinding disc 1. After cleaning is completed, the liquid pipe 902 is closed, the gas pipe 901 is opened, and the grinding disc 1 is dried by gas delivered through the gas pipe 901, and the whole grinding process is completed.

[0072] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A diamond lapping disc device, characterized in that: the device comprises a lapping disc (1) for lapping of diamond raw material, a jig ring (2) for placing diamond raw material to be processed, a driving gear (3) and an external gear ring (4); the driving gear (3) is located in the inner periphery of the lapping disc (1), and the external gear ring (4) is located in the outer periphery of the lapping disc (1); the jig ring (2) is located between the driving gear (3) and the external gear ring (4), and the jig ring (2) is provided with a toothed opening on the outer ring side, and the toothed opening is engaged with the driving gear (3) and the external gear ring (4) respectively; the external gear ring (4) is provided with a tooth slot (401) between adjacent toothed openings, and the external gear ring (4) is provided with a plurality of radially distributed threaded holes (402), which are aligned with and pass through the tooth slot (401); the external gear ring (4) is further provided with a plurality of photoelectric probes (7), a plurality of lapping cooling liquid nozzles (8) and a gas-liquid mixed nozzle (9), the photoelectric probes (7) and the lapping cooling liquid nozzles (8) are arranged alternately, and the gas-liquid mixed nozzle (9) comprises a gas pipe (901) and a liquid pipe (902). 2.The diamond lapping disc device and system according to claim 1, characterized in that: it further comprises a driving device, the output end of the driving device is connected with the driving gear (3), and the driving device comprises a servo driving motor and a reduction gear. 3.The diamond lapping disc device and system according to claim 1, characterized in that: the jig ring (2) is a plurality of jig rings (2), and the plurality of jig rings (2) are equally spaced between the driving gear (3) and the external gear ring (4). 4.The diamond lapping disc device and system according to claim 1, characterized in that: an inner gap (5) is reserved between the driving gear (3) and the lapping disc (1), and an outer gap (6) is reserved between the external gear ring (4) and the lapping disc (1). 5.The diamond lapping disc device and system according to claim 1, characterized in that: the photoelectric probes (7) and the lapping cooling liquid nozzles (8) are alternately and uniformly arranged along the ring direction of the external gear ring (4); the ring direction distance between two adjacent photoelectric probes (7) is equal to the ring direction distance between two adjacent lapping cooling liquid nozzles (8), and the detection direction of the photoelectric probe (7) and the jet direction of the lapping cooling liquid nozzle (8) are both towards the central area of the lapping disc (1). 6.The diamond lapping disc device and system according to claim 1, characterized in that: the photoelectric probe (7), the lapping cooling liquid nozzle (8) and the gas-liquid mixed nozzle (9) are all provided with a screw pipe head structure, and each screw pipe head structure is screwed into the threaded hole (402) of the external gear ring (4), the outer circumferential surface of the screw pipe head structure is provided with an external thread, and the external thread is matched with the internal thread of the threaded hole (402) of the external gear ring (4). 7.The diamond lapping disc device and system according to claim 1, characterized in that: the gas pipe (901) of the gas-liquid mixed nozzle (9) is communicated with an external gas source, and the liquid pipe (902) is communicated with an external cooling liquid supply device. The gas pipe (901) is provided with a gas control valve, and the liquid pipe (902) is provided with a liquid control valve.

8. A control system of a diamond lapping disc device, applied to the diamond lapping disc device of claims 1 to 7, characterized in that, The control system comprises: An encoding unit for encoding the circumferential positions of the photoelectric probes (7), the grinding coolant spray heads (8), and the gas-liquid mixed spray heads (9) relative to the outer tooth ring (4); A photoelectric monitoring and analyzing unit electrically connected to the photoelectric probes (7), acquiring distance information detected by the photoelectric probes (7) and analyzing the shielding condition of the jig ring (2); A motion trend analyzing unit connected to the photoelectric monitoring and analyzing unit, classifying the photoelectric probes (7) adjacent in the coded positions and detecting the jig ring (2) into the same monitoring group, analyzing the motion trend of the jig ring (2) according to the distance parameter changes of the photoelectric probes (7) in the same monitoring group, and determining the grinding coolant spray heads (8) in the same monitoring group region; The motion trend analyzing unit classifies the photoelectric probes (7) adjacent to and not detecting the jig ring (2) into a zero monitoring region group; The motion trend includes a close motion trend and a far motion trend, the close motion trend is a motion trend when the distance detected by the photoelectric probe (7) gradually decreases, and the far motion trend is a motion trend when the distance detected by the photoelectric probe (7) gradually increases; A cooling output control unit connected to the motion trend analyzing unit and outputting and controlling the grinding coolant spray heads (8), controlling the output intensity of the grinding coolant spray heads (8) according to the motion trend and the distance parameter of the jig ring (2); The output intensity of the grinding coolant spray head (8) includes the grinding coolant spray rate and the grinding coolant temperature.

9. A control system for a diamond lapping disc apparatus as claimed in claim 8, wherein, Also comprising a control method thereof, the method content is as follows: S1. Start the grinding disc (1) device, drive the gear (3) to stably rotate at a preset speed, drive multiple jig rings (2) to perform planetary motion, and make the processed diamond raw material start grinding work with the jig ring (2) synchronously; S2. At the same time, the photoelectric monitoring and analyzing unit is started, and the distance information detected by each photoelectric probe (7) is collected in real time; S3. The motion trend analyzing unit selects the photoelectric probes (7) detecting the jig ring (2), classifies the photoelectric probes (7) adjacent in the coded positions into the same monitoring group, and locks the grinding coolant spray heads (8) in the corresponding region of the group; S4. According to the distance parameter changes of the photoelectric probes (7) in the same monitoring group, the motion trend of the jig ring (2) is judged, and it is determined to be a close motion trend or a far motion trend; S5. When the motion trend is the close motion trend, the grinding coolant spray rate and the temperature of the grinding coolant spray head (8) are reduced; When the motion trend is the far motion trend, the grinding coolant spray rate and the temperature of the grinding coolant spray head (8) are increased; S6. The grinding coolant spray heads (8) in the zero monitoring region group spray liquid at the maximum rate and temperature of the far motion trend to remove the residual grinding powder on the surface of the grinding disc (1); S7. After the grinding work is completed, the gas-liquid mixed spray head (9) is started, the grinding disc (1) is cleaned by spraying cleaning liquid through the liquid pipe (902), then the liquid pipe (902) is closed and the gas pipe (901) is opened, and the grinding disc (1) is dried.

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