Cutting fluid detection system for photovoltaic silicon wafer cutting

Abstract

The invention provides a cutting fluid detection system for photovoltaic silicon wafer cutting, and relates to the technical field of cutting fluid detection, the cutting fluid detection system comprises a support box, the lower end of the support box is provided with a moving mechanism; the sampling device, the cutting fluid mixing device, the sample separating device and the detection box are horizontally installed at the upper end of the supporting box at intervals, a cutting fluid detection related instrument is installed in the detection box, and the cutting fluid output end of the sampling device is communicated with a first cutting fluid inlet of the cutting fluid mixing device. A cutting fluid outlet of the cutting fluid mixing device is connected with a second cutting fluid inlet of the sample separating device through a first hose. The cutting fluid mixing device is arranged, cutting fluid sampled by the sampling device from different parts in the to-be-detected cutting fluid storage device is mixed and then subjected to sample separation, the separated cutting fluid is detected, and the situation that the cutting fluid in the to-be-detected cutting fluid storage device is not uniform in distribution, so that the cutting fluid in the to-be-detected cutting fluid storage device is not uniform in distribution is avoided. The cutting detection results of sampling at different depths may have large differences, and the accuracy of the detection results is affected.

Description

Technical Field

[0001] The invention relates to the technical field of cutting fluid detection, in particular to a cutting fluid detection system for photovoltaic silicon wafer cutting. Background Art

[0002] Photovoltaic silicon wafer cutting fluid is a liquid used in the production process of photovoltaic silicon wafers. During the cutting process of photovoltaic silicon wafers, the cutting fluid can reduce the friction between the tool and the silicon wafer, help dissipate heat, and effectively reduce the processing temperature, which helps to reduce heat loss during the cutting process and improve cutting efficiency.

[0003] In the prior art, photovoltaic silicon wafer cutting fluid needs to be tested during the production and use of photovoltaic silicon wafer cutting fluid. Existing cutting fluid detection devices, such as CN118376455B, a cutting fluid concentration detection device based on artificial intelligence and its detection method, have the following problems:

[0004] The lack of a processing device for the cutting fluid after sampling (such as mixing, filtering) can easily affect the accuracy of the test results (for example, due to the uneven distribution of the cutting fluid to be sampled, there may be large differences in the cutting test results of samples taken at different depths), affecting the reliability of subsequent processing of the cutting fluid detection device based on the test results (such as concentration adjustment, pH adjustment). Summary of the invention

[0005] The present invention provides a cutting fluid detection system for photovoltaic silicon wafer cutting, which is used to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention discloses a cutting fluid detection system for photovoltaic silicon wafer cutting, comprising:

[0007] A support box, wherein a moving mechanism is arranged at the lower end of the support box;

[0008] A sampling device, a cutting fluid mixing device, a sampling device, and a detection box are installed horizontally at intervals on the upper end of the support box. Cutting fluid detection related instruments are installed in the detection box. The cutting fluid output end of the sampling device is connected to the first cutting fluid inlet of the cutting fluid mixing device, and the cutting fluid outlet of the cutting fluid mixing device is connected to the second cutting fluid inlet of the sampling device through a first hose.

[0009] Preferably, the sampling device comprises:

[0010] An X-axis translation mechanism 1, wherein the X-axis translation mechanism 1 is installed at the upper end of the support box, and a moving end of the X-axis translation mechanism 1 is connected to the lifting mechanism;

[0011] Y-axis translation mechanism 1, the Y-axis translation mechanism 1 is installed at the lifting end of the lifting mechanism;

[0012] The extraction device is installed at the moving end of the Y-axis translation mechanism.

[0013] Preferably, the extraction device comprises: a delivery pump 1, the delivery pump 1 is installed at the moving end of the Y-axis translation mechanism 1, the inlet of the delivery pump 1 is connected to the sampling tube, and the outlet of the delivery pump 1 is connected to the first cutting fluid inlet of the cutting fluid mixing device through a second hose;

[0014] The moving mechanism comprises: a plurality of casters, and the plurality of casters are horizontally installed at intervals at the lower end of the supporting box.

[0015] Preferably, the cutting fluid mixing device comprises:

[0016] Support frame one, support frame one is fixedly mounted on the upper end of the support box, a sample mixing outer box is mounted on the upper end of the support frame one, a motor box and a cleaning liquid storage box are mounted on the upper end of the sample mixing outer box, a motor is mounted in the motor box, an output shaft of the motor is vertically arranged downward, and the output shaft of the motor rotates and passes through the upper end of the sample mixing outer box, an upper end of the sample mixing inner box is open, the sample mixing inner box is mounted in the sample mixing outer box, the upper end of the sample mixing inner box is fixedly connected to the inner wall of the upper end of the sample mixing outer box, and a liquid outlet of the cleaning liquid storage box is connected to the sample mixing inner box through a connecting pipe;

[0017] A vertical screw, the upper end of which is fixedly connected to the lower end of the output shaft of the motor, the lower end of which is connected to a vertical stirring shaft, and the vertical stirring shaft is connected to blades;

[0018] The sample arrangement box is fixedly installed at the lower end of the sample mixing outer box, and the upper end of the sample arrangement box is open, and the lower ends of the sample mixing outer box and the sample mixing inner box are correspondingly provided with sample arrangement openings;

[0019] A horizontal sealing block is slided in the horizontal direction and sealed at the lower end of the mixing outer box. The horizontal sealing block is used to seal the sample arrangement port. The fixed end of the horizontal electric telescopic rod is fixedly connected to the lower end of the mixing outer box through a fixed block. The telescopic end of the horizontal electric telescopic rod slides through the outer wall of the sample arrangement box and is fixedly connected to the horizontal sealing block.

[0020] Preferably, the sample separation device comprises:

[0021] Y-axis translation mechanism 2, the Y-axis translation mechanism 2 is installed on the upper end of the support box, and the moving end of the Y-axis translation mechanism 2 is installed with the support frame 2;

[0022] A second delivery pump, which is installed on the upper end of the second support frame, an inlet of the second delivery pump is connected to one end of the first hose, the other end of the first hose is connected to the sample discharge box, and an outlet of the second delivery pump is connected to the sample discharge pipe;

[0023] The mounting frame is fixedly mounted on the upper end of the support box, and the mounting frame is located on one side of the Y-axis translation mechanism. A plurality of sample container mounting openings are arranged on the mounting frame at intervals horizontally along the Y-axis direction. Sample containers are installed in the sample container mounting openings, and the sample discharge tube is used for discharging liquid to different sample containers on the mounting frame.

[0024] Preferably, the cutting fluid mixing device further comprises: a multifunctional auxiliary mechanism, the multifunctional auxiliary mechanism comprising:

[0025] Groove 1, groove 1 is arranged at the left part of the upper end of the mixing outer box, an impurity collecting groove is installed in the groove 1, a first inlet is arranged on the right side wall of the groove 1, a fixing block 2 is fixedly connected to the right side wall of the groove 1, and a vertical guide rod 1 slides along the up and down direction to penetrate the fixing block 2;

[0026] A filter plate, the lower end of the filter plate is installed with the vertical guide rod 1, a spring 1 is fixedly connected between the left part of the lower end of the filter plate and the upper end of the second fixing block, a spring 2 is connected between the right part of the upper end of the filter plate and the inner wall of the upper end of the mixing outer box, and the upper end of the filter plate is an inclined surface with a lower left and a higher right;

[0027] A horizontal lifting plate, in which a lead screw nut is embedded, the lead screw nut cooperates with the vertical lead screw, and the right part of the filter plate is located directly above the left part of the horizontal lifting plate;

[0028] A slider is connected to the upper part of the right inner wall of the mixing outer box by sliding in the up-down direction, a vertical liquid channel is arranged at the lower end of the slider, a horizontal liquid channel is connected to the right side of the upper end of the vertical liquid channel, the horizontal liquid channel is arranged on the right side of the slider, a spring 3 is connected between the upper end of the slider and the inner wall of the upper end of the mixing outer box, an inclined liquid channel with a lower left and a higher right is arranged on the right side wall of the mixing outer box, the upper end of the inclined liquid channel is connected to the connecting pipe, and an extending protrusion is arranged on the left side of the slider;

[0029] The horizontal driving plate is fixedly connected to the right side of the horizontal lifting plate, and the right part of the horizontal driving plate is located directly above the extended protrusion; when the lower end of the right part of the horizontal driving plate does not contact the upper end of the extended protrusion, the horizontal liquid channel of the slider is not connected to the outlet at the lower part of the inclined liquid channel under the action of spring three.

[0030] Preferably, the lower end of the vertical lead screw is connected to the vertical stirring shaft through a mounting block, a slide groove is arranged in the mounting block, the upper end of the vertical stirring shaft slides up and down through the lower end of the slide groove, and an elastic connecting piece is connected between the upper end of the vertical stirring shaft and the inner wall of the upper end of the slide groove;

[0031] The center of the lower end of the vertical stirring shaft is fixedly connected to a vertical rod, and the lower end of the vertical rod is set to a spherical surface;

[0032] A second groove is arranged in the middle of the upper end of the horizontal sealing block, the bottom wall of the second groove is an inclined surface which is lower on the left and higher on the right, and the spherical surface contacts the inclined surface.

[0033] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The sampling device is used to sample cutting fluid from the storage device of the cutting fluid to be tested. The sampling device samples cutting fluid from different parts of the storage device of the cutting fluid to be tested and transports it to the cutting fluid mixing device. The cutting fluid mixing device mixes the cutting fluid, and then the cutting fluid mixed by the cutting fluid mixing device is transported to the sampling device through the first hose. The cutting fluid sampled by the sampling device is subjected to quality inspection by cutting fluid detection related instruments installed in the detection box. By setting up the cutting fluid mixing device, the cutting fluid sampled by the sampling device from different parts of the storage device of the cutting fluid to be tested is mixed and then sampled, and the sampled cutting fluid is tested, so as to avoid the problem that the cutting fluid in the storage device of the cutting fluid to be tested has uneven distribution, and the cutting test results of different depths of sampling may be different, which affects the accuracy of the test results and the reliability of subsequent processing (such as concentration adjustment, pH adjustment) of the cutting fluid detection device according to the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 It is a structural schematic diagram of a cutting fluid detection system for photovoltaic silicon wafer cutting of the present invention;

[0038] Figure 2 A cross-sectional view of an embodiment of an X-axis translation mechanism of the present invention;

[0039] Figure 3 It is a structural schematic diagram of an embodiment of a cutting fluid mixing device of the present invention;

[0040] Figure 4 It is a structural schematic diagram of another embodiment of the cutting fluid mixing device of the present invention;

[0041] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of the A region;

[0042] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of area B in FIG.

[0043] In the figure: 1, support box; 2, casters; 3, sampling device; 31, X-axis translation mechanism 1; 311, box body; 312, lead screw 1; 313, lead screw drive motor; 314, sliding block; 32, lifting mechanism; 321, lifting rod; 33, Y-axis translation mechanism 1; 34, delivery pump 1; 35, sampling tube; 36, second hose; 4, cutting fluid mixing device; 41, support frame 1; 42, mixed sample outer box; 43, motor box; 44, cleaning liquid storage box; 45, motor; 46, vertical lead screw; 47, vertical stirring shaft; 48, blade; 49, sample row box; 410, horizontal electric telescopic rod; 411, horizontal sealing block; 412, fixed block 1; 413, mixed sample inner box; 414, sample row port; 415, first cutting fluid inlet; 5, sample dividing device; 51, Y-axis translation machine Structure 2; 52. Support frame 2; 53. Delivery pump 2; 54. Mounting frame; 55. Sample container mounting port; 56. Sample container; 57. Sample row tube; 6. Detection box; 7. First hose; 8. Multifunctional auxiliary mechanism; 81. Groove 1; 82. Impurity collection tank; 83. First inlet; 84. Fixed block 2; 85. Vertical guide rod 1; 86. Filter plate; 87. Spring 1; 88. Horizontal lifting plate; 89. Sliding block; 891. Vertical liquid channel; 892. Horizontal liquid channel; 893. Extended protrusion; 810. Inclined liquid channel; 811. Spring 3; 812. Horizontal drive plate; 813. Spring 2; 9. Mounting block; 91. Slide; 10. Elastic connector; 11. Vertical rod; 111. Spherical surface; 12. Groove 2; 121. Inclined surface; 13. Connecting pipe. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The present invention provides the following embodiments

[0047] Embodiment 1, the present invention provides a cutting fluid detection system for photovoltaic silicon wafer cutting, such as Figure 1 As shown, including:

[0048] A support box 1, a moving mechanism is arranged at the lower end of the support box 1;

[0049] The sampling device 3, the cutting fluid mixing device 4, the sampling device 5, and the detection box 6 are horizontally installed at an interval on the upper end of the support box 1. The cutting fluid detection related instruments are installed in the detection box 6. The cutting fluid output end of the sampling device 3 is connected to the first cutting fluid inlet 415 of the cutting fluid mixing device 4. The cutting fluid outlet of the cutting fluid mixing device 4 is connected to the second cutting fluid inlet of the sampling device 5 through the first hose 7.

[0050] The cutting fluid mixing device 4 comprises:

[0051] A support frame 41, the support frame 41 is fixedly mounted on the upper end of the support box 1, a sample mixing outer box 42 is mounted on the upper end of the support frame 41, a motor box 43 and a cleaning liquid storage box 44 are mounted on the upper end of the sample mixing outer box 42, a motor 45 is mounted in the motor box 43, an output shaft of the motor 45 is vertically arranged downward, and the output shaft of the motor 45 rotates and passes through the upper end of the sample mixing outer box 42, an upper end of an inner sample mixing box 413 is open, the inner sample mixing box 413 is mounted in the sample mixing outer box 42, an upper end of the inner sample mixing box 413 is fixedly connected to an inner wall of the upper end of the sample mixing outer box 42, and a liquid outlet of the cleaning liquid storage box 44 is connected to the inner sample mixing box 413 through a connecting pipe 13;

[0052] A vertical screw 46, the upper end of which is fixedly connected to the lower end of the output shaft of the motor 45, the lower end of which is connected to a vertical stirring shaft 47, and a blade 48 is connected to the vertical stirring shaft 47;

[0053] The sample row box 49 is fixedly mounted at the lower end of the sample mixing outer box 42, and the upper end of the sample row box 49 is open, and the lower ends of the sample mixing outer box 42 and the sample mixing inner box 413 are provided with sample row ports 414 correspondingly;

[0054] Horizontal sealing block 411, the horizontal sealing block 411 slides in the horizontal direction and seals at the lower end of the mixing outer box 42, the horizontal sealing block 411 is used to seal the sample discharge port 414, the fixed end of the horizontal electric telescopic rod 410 is fixedly connected to the lower end of the mixing outer box 42 through a fixed block 412, the telescopic end of the horizontal electric telescopic rod 410 slides through the outer wall of the sample discharge box 49 and is fixedly connected to the horizontal sealing block 411.

[0055] The cutting fluid detection related instruments installed in the detection box 6 include at least one of: a pH detection device, a cutting fluid concentration detection device, a cutting fluid viscosity detection device, etc.

[0056] The working principle and beneficial effects of the above technical solution are:

[0057] The sampling device 3 is used to sample cutting fluid from the storage device of the cutting fluid to be tested. The sampling device 3 samples cutting fluid from different parts of the storage device of the cutting fluid to be tested and transports it to the cutting fluid mixing device 4. The cutting fluid mixing device 4 mixes the cutting fluid, and then the cutting fluid mixed by the cutting fluid mixing device 4 is transported to the sampling device 5 through the first hose 7. The cutting fluid sampled by the sampling device 5 is subjected to quality inspection by cutting fluid detection related instruments installed in the detection box 6. By setting the cutting fluid mixing device 4, the cutting fluid sampled by the sampling device 3 from different parts of the storage device of the cutting fluid to be tested is mixed and then sampled, and the sampled cutting fluid is tested, so as to avoid the problem that the cutting fluid in the storage device of the cutting fluid to be tested has uneven distribution, and the cutting test results of different depths of sampling may be greatly different, which affects the accuracy of the test results and the reliability of subsequent processing (such as concentration adjustment, pH adjustment) of the cutting fluid detection device according to the test results.

[0058] When the cutting fluid mixing device 4 is needed, first control the horizontal electric telescopic rod 410 to extend so that the horizontal sealing block 411 seals the sample discharge port 414. The cutting fluid in the cutting fluid mixing device 4 enters the mixing inner box 413 through the first cutting fluid inlet 415. After the total sampling amount of the sampling device 3 reaches the total amount of cutting fluid that needs to be sampled for the current detection of the cutting fluid detection system, control the motor 45 to rotate. The rotation of the motor 45 drives the vertical stirring shaft 47 to rotate, thereby driving the blades 48 to stir and mix the cutting fluid in the mixing inner box 413.

[0059] Embodiment 2, on the basis of embodiment 1, as Figure 1 , Figure 2 As shown, the sampling device 3 comprises:

[0060] An X-axis translation mechanism 31, the X-axis translation mechanism 31 is installed at the upper end of the support box 1, and the moving end of the X-axis translation mechanism 31 is connected to the lifting mechanism 32;

[0061] A Y-axis translation mechanism 33, the Y-axis translation mechanism 33 is installed at the lifting end of the lifting mechanism 32;

[0062] The extraction device is installed at the moving end of the Y-axis translation mechanism 33.

[0063] The extraction device comprises: a delivery pump 34, which is installed at the moving end of the Y-axis translation mechanism 33, the inlet of the delivery pump 34 is connected to the sampling tube 35, and the outlet of the delivery pump 34 is connected to the first cutting fluid inlet 415 of the cutting fluid mixing device 4 through the second hose 36;

[0064] The moving mechanism comprises: a plurality of casters 2, which are horizontally installed at intervals at the lower end of the supporting box 1.

[0065] The sample dividing device 5 comprises:

[0066] A second Y-axis translation mechanism 51, the second Y-axis translation mechanism 51 is installed on the upper end of the support box 1, and a second support frame 52 is installed on the moving end of the second Y-axis translation mechanism 51;

[0067] The second delivery pump 53 is installed on the upper end of the second support frame 52, the inlet of the second delivery pump 53 is connected to one end of the first hose 7, the other end of the first hose 7 is connected to the sample discharge box 49, and the outlet of the second delivery pump 53 is connected to the sample discharge pipe 57;

[0068] The mounting frame 54 is fixedly mounted on the upper end of the support box 1, and the mounting frame 54 is located on one side of the Y-axis translation mechanism 33. A plurality of sample container mounting openings 55 are arranged on the mounting frame 54 at intervals horizontally along the Y-axis direction. Sample containers 56 are installed in the sample container mounting openings 55. Sample discharge tubes 57 are used to discharge liquid to different sample containers 56 on the mounting frame 54.

[0069] X-axis translation mechanism 1 31, Y-axis translation mechanism 1 33, and Y-axis translation mechanism 2 51 can all be existing technologies;

[0070] Among them, Figure 2 As shown, the lifting mechanism 32 is a lifting rod 321 (which can be a hydraulic rod or an electric telescopic rod). The X-axis translation mechanism 31 of the present invention may include:

[0071] A box body 311, a lead screw 312 is rotatably arranged in the X direction in the box body 311, a lead screw driving motor 313 is arranged in the box body 311 to drive the lead screw 312 to rotate, a sliding block 314 is slidably connected to the inner wall of the lower end of the box body 311 along the X direction, a lead screw nut 1 is embedded in the sliding block 314, the lead screw nut 1 cooperates with the lead screw 312, the upper end of the sliding block 314 is fixedly connected to the fixed end of the lower end of the lifting rod 321, and the movable end of the upper end of the lifting rod 321 is installed with a Y-axis translation mechanism 33.

[0072] The working principle and beneficial effects of the above technical solution are:

[0073] In the sampling device 3, by setting an X-axis translation mechanism 31, a lifting mechanism 32, and a Y-axis translation mechanism 33, the delivery pump 34 can be moved along the X direction, the vertical direction (Z direction), and the Y direction, thereby driving the sampling tube 35 to move along the X direction, the vertical direction (Z direction), and the Y direction, so as to realize the cutting fluid sampling of different parts of the cutting fluid storage device to be detected. The cutting fluid of the cutting fluid storage device to be detected (which can be specifically the cutting fluid storage box described below) enters the first cutting fluid inlet 415 through the sampling tube 35, the delivery pump 34, and the second hose 36 in sequence;

[0074] The cutting fluid mixed by the cutting fluid mixing device 4 is delivered to the sample container 56 through the first hose 7, the delivery pump 2 53 and the sample tube 57. The delivery pump 2 53 and the sample tube 57 can be moved along the Y direction through the Y-axis translation mechanism 2 51, so that the sample tube 57 can deliver the cutting fluid to different sample containers 56. The quality of multiple sample containers 56 is inspected separately by cutting fluid detection related instruments installed in the detection box 6, avoiding the inaccuracy of only detecting a single sample container 56.

[0075] Embodiment 3, on the basis of embodiment 1 or 2, as Figure 3-Figure 6 As shown, the cutting fluid mixing device 4 also includes: a multifunctional auxiliary mechanism 8, and the multifunctional auxiliary mechanism 8 includes:

[0076] A groove 81 is provided at the upper left part of the mixing outer box 42. An impurity collecting groove 82 is installed in the groove 81. A first inlet 83 is provided on the right side wall of the groove 81. A fixing block 84 is fixedly connected to the right side wall of the groove 81. A vertical guide rod 85 slides through the fixing block 84 in the up-down direction.

[0077] A filter plate 86 is provided, wherein the vertical guide rod 85 is installed at the lower end of the filter plate 86, a spring 87 is fixedly connected between the left portion of the lower end of the filter plate 86 and the upper end of the fixing block 84, a spring 813 is connected between the right portion of the upper end of the filter plate 86 and the inner wall of the upper end of the mixing outer box 42, and the upper end of the filter plate 86 is an inclined surface with a lower left side and a higher right side;

[0078] The horizontal lifting plate 88 is embedded with a lead screw nut, which cooperates with the vertical lead screw 46, and the right part of the filter plate 86 is located directly above the left part of the horizontal lifting plate 88; the lead screw and the lead screw nut cooperate with each other in the prior art. In the present invention, a vertical guide rod can be fixedly provided on the inner wall of the upper end of the mixing outer box 42, and the vertical guide rod slides along the up and down direction to penetrate the horizontal lifting plate 88, and the vertical guide rod guides the movement of the horizontal lifting plate 88;

[0079] Slider 89, the slider 89 is connected to the upper part of the right inner wall of the mixing outer box 42 by sliding in the up-down direction, a vertical liquid channel 891 is arranged at the lower end of the slider 89, a horizontal liquid channel 892 is connected to the right side of the upper end of the vertical liquid channel 891, and the horizontal liquid channel 892 is arranged on the right side of the slider 89, a spring 3 811 is connected between the upper end of the slider 89 and the inner wall of the upper end of the mixing outer box 42, an inclined liquid channel 810 with a lower left and a higher right is arranged on the right side wall of the mixing outer box 42, the upper end of the inclined liquid channel 810 is connected to the connecting pipe 13, and an extending protrusion 893 is arranged on the left part of the slider 89;

[0080] The horizontal driving plate 812 is fixedly connected to the right side of the horizontal lifting plate 88, and the right part of the horizontal driving plate 812 is located directly above the extended protrusion 893; when the lower end of the right part of the horizontal driving plate 812 does not contact the upper end of the extended protrusion 893, the horizontal liquid channel 892 of the slider 89 is not connected to the outlet at the lower part of the inclined liquid channel 810 under the action of the spring three 811.

[0081] The lower end of the vertical lead screw 46 is connected to the vertical stirring shaft 47 through the mounting block 9. A slide groove 91 is provided in the mounting block 9. The upper end of the vertical stirring shaft 47 slides up and down through the lower end of the slide groove 91. An elastic connector 10 is connected between the upper end of the vertical stirring shaft 47 and the inner wall of the upper end of the slide groove 91. The elastic connector 10 can be a spring.

[0082] The center of the lower end of the vertical stirring shaft 47 is fixedly connected to the vertical rod 11, and the lower end of the vertical rod 11 is set as a spherical surface 111;

[0083] A second groove 12 is provided in the middle of the upper end of the horizontal sealing block 411 . The bottom wall of the second groove 12 is an inclined surface 121 which is lower on the left and higher on the right. The spherical surface 111 contacts the inclined surface 121 .

[0084] In the present invention, an opening may be provided at the upper front portion of the sample mixing outer box 42, and a seal cover that can be opened and closed may be provided at the opening, and the filter plate 86 may be installed through the opening;

[0085] The working principle and beneficial effects of the above technical solution are:

[0086] 1. In the present invention, when the cutting fluid stored in the cutting fluid storage device to be tested contains impurities, precipitation, etc., the filter plate 86 of the present invention is installed for filtering. When the cutting fluid entering the mixed sample inner box 413 does not need to be filtered by the filter plate 86, the filter plate 86 may not be installed;

[0087] After the filter plate 86 is installed, and the horizontal lifting plate 88 does not support the filter plate 86, the left top end of the filter plate 86 is connected to the first inlet 83. When the filter plate 86 needs to be used to filter the cutting fluid, the motor 45 is first controlled to rotate, driving the vertical screw 46 to rotate so that the horizontal lifting plate 88 moves upward. The horizontal lifting plate 88 pushes the filter plate 86 to move upward so that the left top end of the filter plate 86 is not connected to the first inlet 83 (the spring 813 is compressed at this time), and then the cutting fluid is input into the first cutting fluid inlet 415, and the cutting fluid is filtered through the filter plate 86. When there are many impurities on the filter plate 86, the motor 45 can be controlled to rotate. , driving the vertical lead screw 46 to rotate so that the horizontal lifting plate 88 moves downward, so that the left top end of the filter plate 86 is connected to the first inlet 83, so that the impurities on the filter plate 86 automatically enter the impurity collecting tank 82 through the first inlet 83; and in the process of the filter plate 86 discharging impurities, the horizontal lifting plate 88 can be continuously moved up and down by controlling the rotation of the vertical lead screw 46 (the horizontal lifting plate 88 moves upward to the filter plate 86 to compress the spring 2 813 a certain distance, and the horizontal lifting plate 88 moves downward to no longer contact the filter plate 86), and at the same time, cooperate with the spring 2 813 to realize the up and down shaking of the filter plate 86, so as to facilitate the impurities on the filter plate 86 to be discharged into the first inlet 83.

[0088] 2. When the cutting fluid in the mixing inner box 413 needs to be mixed, the motor 45 is controlled to rotate, and the rotation of the motor 45 drives the vertical stirring shaft 47 to rotate, thereby driving the blades 48 to stir and mix the cutting fluid in the mixing inner box 413; during the stirring and mixing process of the cutting fluid in the mixing inner box 413 by the blades 48, the right part of the horizontal driving plate 812 is located directly above the extension protrusion 893, and the horizontal driving plate 812 does not contact the extension protrusion 893, such as Figure 5 As shown, under the action of spring three 811, the horizontal liquid channel 892 of the slider 89 is not connected to the outlet at the lower part of the inclined liquid channel 810.

[0089] 3. When it is necessary to clean the mixing inner box 413, add clean water into the mixing inner box 413, and then control the motor 45 to rotate, drive the vertical screw 46 to rotate, so that the horizontal lifting plate 88 moves downward, and the horizontal lifting plate 88 presses down the extended protrusion 893, so that the horizontal liquid channel 892 is connected with the outlet at the bottom of the inclined liquid channel 810, so that the cutting fluid cleaning fluid stored in the cleaning fluid storage box 44 enters the mixing inner box 413 through the inclined liquid channel 810, the horizontal liquid channel 892, and the vertical liquid channel 891, and the clean water and the cutting fluid cleaning fluid in the mixing inner box 413 are mixed by the blades 48 and the cutting fluid in the mixing inner box 413 is flushed.

[0090] 4. In the present invention, a motor 45 is used to control the up and down shaking of the filter plate 86, whether the left top of the filter plate 86 is connected to the first inlet 83, and whether the horizontal liquid channel 892 is connected to the outlet at the bottom of the inclined liquid channel 810, so the control is convenient.

[0091] 5. During the process of blade 48 mixing the cutting fluid in mixing inner box 413 (or mixing the clean water and cutting fluid cleaning fluid), Figure 6 On the basis of the above, the horizontal electric telescopic rod 410 can be controlled to extend and retract to drive the horizontal sealing block 411 to move left and right (in this process, the horizontal sealing block 411 does not open the sample discharge port 414), and different parts of the inclined surface 121 on the horizontal sealing block 411 contact the spherical surface 111, and at the same time cooperate with the elastic connecting piece 10 to drive the spherical surface 111 to move upward or downward (in the case of Figure 6 On the basis of the above, the horizontal electric telescopic rod 410 is controlled to extend to drive the horizontal sealing block 411 to move to the left. Since the inclined surface 121 contacts the spherical surface 111, the spherical surface 111 moves upward. At this time, the elastic connecting member 10 is compressed, thereby driving the vertical rod 11, the vertical stirring shaft 47, and the blade 48 to move up and down, thereby accelerating the mixing efficiency of the blade 48;

[0092] Through a control part of the horizontal electric telescopic rod 410, the horizontal sealing block 411 can be closed or the sample discharge port 414, and the vertical rod 11, the vertical stirring shaft 47, and the blade 48 can be driven up and down to accelerate the mixing efficiency of the blade 48, which is convenient for control.

[0093] Embodiment 4, based on any one of embodiments 1-3, the sampling device takes samples from a cutting fluid storage tank, and the cutting fluid storage tank stores the cutting fluid for recycling;

[0094] The cutting fluid detection system for photovoltaic silicon wafer cutting also includes:

[0095] A storage module, wherein the storage module stores the detection data of the cutting fluid detection related instruments;

[0096] The sampling evaluation module is used to determine the target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device after all the cutting fluid detection related instruments have completed the detection after the current sampling, and when each cutting fluid parameter detected by all the cutting fluid detection related instruments after the current sampling meets the allowable range of the corresponding cutting fluid parameter;

[0097] The sampling assessment module includes:

[0098] A data acquisition unit, the data acquisition unit is used to acquire the target historical data corresponding to the next sampling of the sampling device, the target historical data corresponding to the next sampling of the sampling device is the detection data of the cutting fluid detection related instrument acquired by the latest M samplings before the next sampling of the sampling device; the time corresponding to the target historical data corresponding to each sampling of the sampling device is not the cutting fluid parameter adjustment process for the cutting fluid; the time corresponding to the target historical data is the historical time period where the target historical data is located;

[0099] A first calculation unit, the first calculation unit is used to calculate the current time evaluation value of each cutting fluid parameter detected by the cutting fluid detection related instrument based on the target historical data corresponding to the next sampling of the sampling device acquired by the historical data unit;

[0100] ;

[0101] ;

[0102] is the current time evaluation value of the i-th cutting fluid parameter detected by cutting fluid detection related instruments; is the average detection value of the i-th cutting fluid parameter detected by the cutting fluid detection related instrument obtained by the sampling device at the j-1th sampling in the target historical data corresponding to the next sampling of the sampling device; is the average detection value of the i-th cutting fluid parameter detected by the cutting fluid detection related instrument obtained by the sampling device for the j-th sampling in the target historical data corresponding to the next sampling of the sampling device; the time of the sampling device for the j-1-th sampling is before the time of the sampling device for the j-th sampling; is the time interval between the start of the j-1th sampling of the sampling device and the start of the jth sampling of the sampling device in the target historical data corresponding to the next sampling of the sampling device; The cutting fluid usage time in the time interval between the start of the j-1th sampling of the sampling device and the start of the jth sampling of the sampling device in the target historical data corresponding to the next sampling of the sampling device; is the conversion coefficient of the non-use time of the cutting fluid to the use time of the cutting fluid for the i-th cutting fluid parameter (the cutting fluid can be tested multiple times under the condition of continuous circulation to obtain the change rate of the i-th cutting fluid parameter ; and the cutting fluid is tested multiple times when the cutting fluid is stored and not in use, and the change rate of the i-th cutting fluid parameter is obtained ; Get Right now ); is the maximum value of the allowable range of the i-th cutting fluid parameter; is the minimum value of the allowable range of the i-th cutting fluid parameter; Indicates the minimum value; is the evaluation value of the change rate of the i-th cutting fluid parameter;

[0103] A second calculation unit, the second calculation unit is used to calculate a target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device;

[0104] ;

[0105] The target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device; They are the current time evaluation value of the first cutting fluid parameter detected by cutting fluid detection related instruments, the current time evaluation value of the second cutting fluid parameter detected by cutting fluid detection related instruments, and the current time evaluation value of the third cutting fluid parameter detected by cutting fluid detection related instruments. The current time evaluation value of the nth cutting fluid parameter detected by cutting fluid detection related instruments; The initial sampling time interval of the preset sampling device; Indicates the minimum value; n indicates a total of n cutting fluid parameters detected by cutting fluid detection related instruments.

[0106] The usage time interval is composed of the usage time + B times the cutting fluid non-use time, where B is ;

[0107] After the current sampling start time, when the usage time interval reaches the target usage time interval, controlling the sampling device to sample next time;

[0108] The current sampling of the sampling device 3 is completed only when the total amount of sampling of the sampling device 3 reaches the total amount of cutting fluid that needs to be sampled for the current detection of the cutting fluid detection system (i.e. the total amount of sampling of all sampling parts of the cutting fluid storage device / cutting fluid storage box to be detected);

[0109] The beneficial effect of the above technical solution is that the data acquisition unit is used to acquire the target historical data corresponding to the next sampling of the sampling device, and the target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device is calculated by the first calculation unit and the second calculation unit based on the target historical data corresponding to the next sampling of the sampling device acquired by the data acquisition unit, so as to avoid always using a fixed time interval As the time interval between the two samplings by the sampling device, the cutting fluid may still be in use when the cutting fluid parameters are abnormal, and the cutting fluid is not tested when the cutting fluid is close to abnormality (testing the cutting fluid when the cutting fluid is close to abnormality can determine the treatment method of the cutting fluid based on the test results of the cutting fluid), which affects the use effect of the cutting fluid.

[0110] Embodiment 5, based on embodiment 4, the sampling evaluation module is further used to evaluate the usage status of the circulating cutting fluid stored in the cutting fluid storage box when the sampling device starts sampling next time;

[0111] The sampling assessment module also includes:

[0112] A third calculation unit, the third calculation unit is used to calculate the use status evaluation coefficient of each cutting fluid parameter of the cyclic cutting fluid stored in the cutting fluid storage box at the beginning of the next sampling;

[0113] ;

[0114] Starting from the next sampling, the usage status evaluation coefficient of the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage tank is, is the change direction value of the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box during the circulation process; when the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box during the circulation process is increasing, The value is 1; when the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage tank decreases during the circulation process, The value is -1;

[0115] The cutting fluid usage status assessment unit is used to:

[0116] When the next sampling starts, the use status evaluation coefficient of any cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box is less than or equal to the corresponding preset evaluation coefficient, and it is determined that when the next sampling of the evaluation sampling device starts, the use status of the circulating cutting fluid stored in the cutting fluid storage box is suspended;

[0117] When the next sampling starts, the usage status evaluation coefficients of all types of cutting fluid parameters of the recycled cutting fluid stored in the cutting fluid storage tank are greater than the corresponding preset evaluation coefficients, determining that when the evaluation sampling device starts the next sampling, the usage status of the recycled cutting fluid stored in the cutting fluid storage tank is continued use.

[0118] The recycling state of the cutting fluid is that the cutting fluid after being sprayed out of the photovoltaic silicon wafer cutting device falls into the cutting fluid storage box and then enters the photovoltaic silicon wafer cutting device and is sprayed out, so the cutting fluid is recycled.

[0119] In the present invention, the evaluation result of the cutting fluid usage status evaluation unit can be displayed by providing a display device.

[0120] The beneficial effects of the above technical solution are:

[0121] When the cutting fluid is in a circulating use state, it is necessary to conduct multiple tests on the cutting fluid through a cutting fluid detection system. When the cutting fluid is not close to an abnormal state, it is not necessary to stop using the cutting fluid during the testing process of the cutting fluid through the cutting fluid detection system.

[0122] The third calculation unit calculates the use status evaluation coefficient of each cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box at the start of the next sampling, and determines that the use status of the circulating cutting fluid stored in the cutting fluid storage box is not suspended or continued to be used when the sampling device starts the next sampling, based on the comparison of the use status evaluation coefficients of all cutting fluid parameters of the circulating cutting fluid stored in the cutting fluid storage box at the start of the next sampling with the corresponding preset evaluation coefficients, so as to ensure the use effect of the cutting fluid;

[0123] When the next sampling starts, the usage status evaluation coefficient of any cutting fluid parameter of the recycled cutting fluid stored in the cutting fluid storage box is less than or equal to the corresponding preset evaluation coefficient (that is, the cutting fluid is close to abnormality), and it is determined that when the evaluation sampling device starts the next sampling, the usage status of the recycled cutting fluid stored in the cutting fluid storage box is suspended; when the cutting fluid is close to abnormality, the use of the cutting fluid is suspended during the cutting fluid detection, so as to determine the treatment method for the cutting fluid close to abnormality according to the detection result of the cutting fluid detection system (the treatment method of the cutting fluid includes: scrapping, adjusting the parameters of the cutting fluid (such as adjusting the pH, adjusting the concentration, etc.)), so as to ensure the use effect of the cutting fluid of the present invention.

[0124] Embodiment 6, based on any one of embodiments 1-5, the sampling device takes samples from a cutting fluid storage box, and the cutting fluid storage box stores the cutting fluid for recycling; the cutting fluid detection system for photovoltaic silicon wafer cutting also includes:

[0125] A first acquisition module, the first acquisition module is used to sample and acquire cutting fluid information in the cutting fluid storage box, the cutting fluid information in the cutting fluid storage box includes: an average value of the diameter of impurities in the cutting fluid in the cutting fluid storage box, an average weight of impurities in the cutting fluid in the cutting fluid storage box, a temperature of the cutting fluid in the cutting fluid storage box, a density of the cutting fluid in the cutting fluid storage box, and a weight of the cutting fluid in the cutting fluid storage box;

[0126] A first calculation module, the first calculation module is used to calculate the target flow rate Q of the inlet of the sampling tube 35 based on the first acquisition module;

[0127] ;

[0128] is the cross-sectional area of ​​the sampling tube; is the average value of the friction coefficient between the impurities in the cutting fluid storage tank and the sampling tube; d is the average value of the diameter of the impurities in the cutting fluid in the cutting fluid storage tank; is the density of the cutting fluid in the cutting fluid storage tank; It is the average weight of impurities in the cutting fluid in the cutting fluid storage tank; is the weight of the cutting fluid in the cutting fluid storage tank; is the Reynolds number of impurity particles in the cutting fluid in the cutting fluid storage tank; is the temperature of the cutting fluid in the cutting fluid storage tank; is the natural logarithm, e is the natural constant; T is the unit temperature;

[0129] The control module is used to control the operation of the delivery pump 34 so that the actual flow rate at the inlet of the sampling tube 35 is the target flow rate at the inlet of the sampling tube 35.

[0130] The beneficial effects of the above technical solution are: based on the cutting fluid information in the cutting fluid storage box, a suitable target flow rate Q at the inlet of the sampling tube 35 is selected, and the control module controls the delivery pump 34 to work, so that the actual flow rate at the inlet of the sampling tube 35 is the target flow rate at the inlet of the sampling tube 35, avoiding the flow rate at the inlet of the sampling tube 35 being too small, which causes impurities in the cutting fluid to easily block the relevant pipelines of the sampling device.

[0131] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cutting fluid detection system for photovoltaic silicon wafer cutting, characterized in that: include: A support box (1), a moving mechanism being arranged at the lower end of the support box (1); A sampling device (3), a cutting fluid mixing device (4), a sample dividing device (5), and a detection box (6); the sampling device (3), the cutting fluid mixing device (4), the sample dividing device (5), and the detection box (6) are installed horizontally at intervals on the upper end of a support box (1); cutting fluid detection related instruments are installed in the detection box (6); a cutting fluid output end of the sampling device (3) is connected to a first cutting fluid inlet (415) of the cutting fluid mixing device (4); and a cutting fluid outlet of the cutting fluid mixing device (4) is connected to a second cutting fluid inlet of the sample dividing device (5) via a first hose (7).

2. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 1, characterized in that: The sampling device (3) comprises: An X-axis translation mechanism (31), the X-axis translation mechanism (31) is installed on the upper end of the support box (1), and the moving end of the X-axis translation mechanism (31) is connected to the lifting mechanism (32); A Y-axis translation mechanism (33), wherein the Y-axis translation mechanism (33) is installed at the lifting end of the lifting mechanism (32); The extraction device is installed at the moving end of the Y-axis translation mechanism (33).

3. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 2, characterized in that: The extraction device comprises: a delivery pump (34), the delivery pump (34) is installed at the moving end of the Y-axis translation mechanism (33), the inlet of the delivery pump (34) is connected to the sampling tube (35), and the outlet of the delivery pump (34) is connected to the first cutting fluid inlet (415) of the cutting fluid mixing device (4) through a second hose (36); The moving mechanism comprises: a plurality of casters (2), wherein the plurality of casters (2) are installed at intervals horizontally at the lower end of the supporting box (1).

4. The cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 1, characterized in that: The cutting fluid mixing device (4) comprises: A support frame (41), wherein the support frame (41) is fixedly mounted on the upper end of the support box (1), a sample mixing outer box (42) is mounted on the upper end of the support frame (41), a motor box (43) and a cleaning liquid storage box (44) are mounted on the upper end of the sample mixing outer box (42), a motor (45) is mounted in the motor box (43), an output shaft of the motor (45) is vertically arranged downward, and the output shaft of the motor (45) rotates and passes through the upper end of the sample mixing outer box (42), an upper end of the sample mixing inner box (413) is open, the sample mixing inner box (413) is mounted in the sample mixing outer box (42), an upper end of the sample mixing inner box (413) is fixedly connected to an inner wall of the upper end of the sample mixing outer box (42), and a liquid outlet of the cleaning liquid storage box (44) is connected to the sample mixing inner box (413) through a connecting pipe (13); A vertical screw (46), the upper end of which is fixedly connected to the lower end of the output shaft of the motor (45), the lower end of which is connected to a vertical stirring shaft (47), and a blade (48) is connected to the vertical stirring shaft (47); A sample arrangement box (49), the sample arrangement box (49) is fixedly mounted at the lower end of the sample mixing outer box (42), and the upper end of the sample arrangement box (49) is open, and sample arrangement ports (414) are correspondingly arranged at the lower ends of the sample mixing outer box (42) and the sample mixing inner box (413); A horizontal sealing block (411) is slidably sealed at the lower end of the sample mixing outer box (42) along the horizontal direction. The horizontal sealing block (411) is used to seal the sample row port (414). The fixed end of the horizontal electric telescopic rod (410) is fixedly connected to the lower end of the sample mixing outer box (42) through a fixed block 1 (412). The telescopic end of the horizontal electric telescopic rod (410) slides through the outer wall of the sample row box (49) and is fixedly connected to the horizontal sealing block (411).

5. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 4, characterized in that: The sample dividing device (5) comprises: A second Y-axis translation mechanism (51), the second Y-axis translation mechanism (51) is installed on the upper end of the support box (1), and a second support frame (52) is installed on the moving end of the second Y-axis translation mechanism (51); A second delivery pump (53), the second delivery pump (53) is installed on the upper end of the second support frame (52), the inlet of the second delivery pump (53) is connected to one end of the first hose (7), the other end of the first hose (7) is connected to the sample discharge box (49), and the outlet of the second delivery pump (53) is connected to the sample discharge pipe (57); The mounting frame (54) is fixedly mounted on the upper end of the support box (1), and the mounting frame (54) is located on one side of the Y-axis translation mechanism (33). The mounting frame (54) is provided with a plurality of sample container mounting openings (55) at intervals along the Y-axis direction. Sample containers (56) are mounted in the sample container mounting openings (55), and the sample discharge tube (57) is used for discharging liquid to different sample containers (56) on the mounting frame (54).

6. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 4, characterized in that: The cutting fluid mixing device (4) further comprises: a multifunctional auxiliary mechanism (8), the multifunctional auxiliary mechanism (8) comprising: A groove (81), the groove (81) is arranged at the left upper end of the mixing outer box (42), an impurity collecting groove (82) is installed in the groove (81), a first inlet (83) is arranged on the right side wall of the groove (81), a fixed block (84) is fixedly connected to the right side wall of the groove (81), and a vertical guide rod (85) slides along the up and down direction and penetrates the fixed block (84); A filter plate (86), the lower end of the filter plate (86) is equipped with the vertical guide rod (85), a spring (87) is fixedly connected between the left portion of the lower end of the filter plate (86) and the upper end of the second fixing block (84), a spring (813) is connected between the right portion of the upper end of the filter plate (86) and the inner wall of the upper end of the mixed sample outer box (42), and the upper end of the filter plate (86) is an inclined surface with the left side lower and the right side higher; A horizontal lifting plate (88), wherein a lead screw nut is embedded in the horizontal lifting plate (88), the lead screw nut cooperates with the vertical lead screw (46), and the right part of the filter plate (86) is located directly above the left part of the horizontal lifting plate (88); A slider (89), the slider (89) is slidably connected to the upper part of the right inner wall of the sample mixing outer box (42) along the up-down direction, a vertical liquid channel (891) is provided at the lower end of the slider (89), a horizontal liquid channel (892) is connected to the right side of the upper end of the vertical liquid channel (891), the horizontal liquid channel (892) is provided on the right side of the slider (89), a spring three (811) is connected between the upper end of the slider (89) and the inner wall of the upper end of the sample mixing outer box (42), an inclined liquid channel (810) with a lower left side and a higher right side is provided on the right side wall of the sample mixing outer box (42), the upper end of the inclined liquid channel (810) is connected to the connecting pipe (13), and an extending protrusion (893) is provided on the left side of the slider (89); A horizontal driving plate (812) is fixedly connected to the right side of the horizontal lifting plate (88), and the right part of the horizontal driving plate (812) is located directly above the extension protrusion (893); when the lower end of the right part of the horizontal driving plate (812) is not in contact with the upper end of the extension protrusion (893), the horizontal liquid channel (892) of the slider (89) is not connected to the outlet at the lower part of the inclined liquid channel (810) under the action of the spring three (811).

7. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 6, characterized in that: The lower end of the vertical lead screw (46) is connected to the vertical stirring shaft (47) through the mounting block (9), a slide groove (91) is arranged in the mounting block (9), the upper end of the vertical stirring shaft (47) slides up and down to pass through the lower end of the slide groove (91), and an elastic connecting piece (10) is connected between the upper end of the vertical stirring shaft (47) and the inner wall of the upper end of the slide groove (91); The center of the lower end of the vertical stirring shaft (47) is fixedly connected to the vertical rod (11), and the lower end of the vertical rod (11) is configured as a spherical surface (111); A second groove (12) is provided in the middle of the upper end of the horizontal sealing block (411), and the bottom wall of the second groove (12) is an inclined surface (121) which is lower on the left and higher on the right, and the spherical surface (111) is in contact with the inclined surface (121).

8. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 1, characterized in that: The sampling device takes samples from a cutting fluid storage tank, and the cutting fluid storage tank stores the cutting fluid for recycling; The cutting fluid detection system for photovoltaic silicon wafer cutting also includes: A storage module, wherein the storage module stores the detection data of the cutting fluid detection related instruments; The sampling evaluation module is used to determine the target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device after all the cutting fluid detection related instruments have completed the detection after the current sampling, and when each cutting fluid parameter detected by all the cutting fluid detection related instruments after the current sampling meets the allowable range of the corresponding cutting fluid parameter; The sampling assessment module includes: A data acquisition unit, the data acquisition unit is used to acquire the target historical data corresponding to the next sampling of the sampling device, the target historical data corresponding to the next sampling of the sampling device is the detection data of the cutting fluid detection related instrument acquired by the latest M samplings before the next sampling of the sampling device; the time corresponding to the target historical data corresponding to each sampling of the sampling device is not the time when the cutting fluid parameter adjustment process is performed on the cutting fluid; A first calculation unit, the first calculation unit is used to calculate the current time evaluation value of each cutting fluid parameter detected by the cutting fluid detection related instrument based on the target historical data corresponding to the next sampling of the sampling device acquired by the historical data unit; ； ； is the current time evaluation value of the i-th cutting fluid parameter detected by cutting fluid detection related instruments; is the average detection value of the i-th cutting fluid parameter detected by the cutting fluid detection related instrument obtained by the sampling device at the j-1th sampling in the target historical data corresponding to the next sampling of the sampling device; is the average detection value of the i-th cutting fluid parameter detected by the cutting fluid detection related instrument obtained by the sampling device for the j-th sampling in the target historical data corresponding to the next sampling of the sampling device; the time of the sampling device for the j-1-th sampling is before the time of the sampling device for the j-th sampling; is the time interval between the start of the j-1th sampling of the sampling device and the start of the jth sampling of the sampling device in the target historical data corresponding to the next sampling of the sampling device; The cutting fluid usage time in the time interval between the start of the j-1th sampling of the sampling device and the start of the jth sampling of the sampling device in the target historical data corresponding to the next sampling of the sampling device; is the conversion coefficient of the non-use time of cutting fluid to the use time of cutting fluid for the i-th cutting fluid parameter; is the maximum value of the allowable range of the i-th cutting fluid parameter; is the minimum value of the allowable range of the i-th cutting fluid parameter; Indicates the minimum value; is the evaluation value of the change rate of the i-th cutting fluid parameter; A second calculation unit, the second calculation unit is used to calculate a target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device; ； The target usage time interval from the start time of the current sampling of the sampling device to the start time of the next sampling of the sampling device; They are the current time evaluation value of the first cutting fluid parameter detected by cutting fluid detection related instruments, the current time evaluation value of the second cutting fluid parameter detected by cutting fluid detection related instruments, and the current time evaluation value of the third cutting fluid parameter detected by cutting fluid detection related instruments. The current time evaluation value of the nth cutting fluid parameter detected by cutting fluid detection related instruments; is the initial sampling time interval of the preset sampling device; n represents a total of n cutting fluid parameters detected by cutting fluid detection related instruments.

9. A cutting fluid detection system for photovoltaic silicon wafer cutting according to claim 8, characterized in that: The sampling evaluation module is also used to evaluate the usage status of the circulating cutting fluid stored in the cutting fluid storage tank when the sampling device starts sampling next time; The sampling assessment module also includes: A third calculation unit, the third calculation unit is used to calculate the use status evaluation coefficient of each cutting fluid parameter of the cyclic cutting fluid stored in the cutting fluid storage box at the beginning of the next sampling; ； Starting from the next sampling, the usage status evaluation coefficient of the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box is the change direction value of the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box during the circulation process; when the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box during the circulation process is increasing, The value is 1; when the i-th cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage tank decreases during the circulation process, The value is -1; The cutting fluid usage status assessment unit is used to: When the next sampling starts, the use status evaluation coefficient of any cutting fluid parameter of the circulating cutting fluid stored in the cutting fluid storage box is less than or equal to the corresponding preset evaluation coefficient, and it is determined that when the next sampling of the evaluation sampling device starts, the use status of the circulating cutting fluid stored in the cutting fluid storage box is suspended; When the next sampling starts, the usage status evaluation coefficients of all types of cutting fluid parameters of the recycled cutting fluid stored in the cutting fluid storage tank are greater than the corresponding preset evaluation coefficients, determining that when the evaluation sampling device starts the next sampling, the usage status of the recycled cutting fluid stored in the cutting fluid storage tank is continued use.

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