Quartz crucible wall thickness detection and calibration device

Abstract

This utility model relates to the field of quartz crucible wall thickness detection technology, specifically a quartz crucible wall thickness detection and calibration device. It includes a working plate and a quartz crucible. Several support columns are fixed on the bottom surface of the working plate. The quartz crucible is located above the working plate, and a pneumatic chuck for clamping the quartz crucible is installed near the center of the top surface of the working plate. The device also includes a detection mechanism for detecting the wall thickness of the quartz crucible. The detection mechanism includes a frame fixed to the top surface of the working plate, a movable plate slidably connected to the bottom surface of the frame's horizontal plate, an electric cylinder mounted on the outer wall of the movable plate, and a right fixed plate fixed to the piston rod of the electric cylinder via a right fixed rod. This utility model solves the problems of traditional detection devices being difficult to adapt to quartz crucibles of different sizes and having poor clamping stability by setting up a pneumatic chuck. It also solves the problems of large errors, low efficiency, and time-consuming and labor-intensive manual measurement of quartz crucible wall thickness by setting up a detection mechanism.

Description

Technical Field

[0001] This utility model relates to the field of quartz crucible wall thickness detection technology, specifically a quartz crucible wall thickness detection and calibration device. Background Technology

[0002] In high-end manufacturing fields such as photovoltaics and semiconductors, quartz crucibles are key containers in the single crystal pulling process. The uniformity of their wall thickness directly affects the growth quality and production stability of single crystals. If there is a deviation in the wall thickness, it may lead to uneven temperature distribution during heating, causing crucible cracking or single crystal defects. Therefore, accurate detection of the wall thickness of quartz crucibles is a core link in product quality control.

[0003] Currently, the industry relies heavily on manual operation to test the wall thickness of quartz crucibles. Testers need to use tools such as calipers and micrometers to measure different points on the crucible one by one. This method is not only inefficient and difficult to meet the testing needs of large-scale production, but also prone to human error (such as measurement force and angle deviation) leading to insufficient accuracy of the test data, which cannot accurately reflect the true wall thickness of the crucible. At the same time, manual testing requires frequent contact with the crucible, which poses a risk of damage from bumps and knocks, further increasing production costs.

[0004] Although some companies have introduced simple testing equipment, the existing equipment has obvious limitations: on the one hand, the clamping mechanism has poor adaptability and can only fix quartz crucibles of specific sizes. For products of different specifications, the clamps need to be changed frequently, which is cumbersome and time-consuming. On the other hand, the testing process lacks automated control and precise guidance structure, the movement stability of the tested parts is insufficient, and it is easy to deviate, resulting in distorted distance measurement data. In addition, the data needs to be recorded manually and the wall thickness needs to be calculated, which further increases the complexity of the testing process and the probability of error. Against this background, we propose a quartz crucible wall thickness testing and calibration device. Utility Model Content

[0005] The purpose of this invention is to provide a quartz crucible wall thickness detection and calibration device. By setting up a pneumatic chuck, it solves the problems of traditional detection devices being difficult to adapt to quartz crucibles of different sizes and having poor clamping stability. By setting up a detection mechanism, it solves the problems of large errors, low efficiency, and time and labor costs associated with manual measurement of quartz crucible wall thickness.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quartz crucible wall thickness detection and calibration device includes a working plate and a quartz crucible. Several support columns are fixed on the bottom surface of the working plate. The quartz crucible is located above the working plate, and a pneumatic chuck for clamping the quartz crucible is installed near the center of the top surface of the working plate. The device also includes:

[0008] The testing mechanism is used to test the wall thickness of a quartz crucible. The testing mechanism includes a frame fixed to the top surface of the work plate, a movable plate slidably connected to the bottom surface of the horizontal plate end of the frame, an electric cylinder mounted on the outer wall of the movable plate, a right fixed plate fixed to the piston rod of the electric cylinder via a right fixed rod, an electric push rod mounted on the outer wall of the left vertical plate end of the frame, a left fixed rod fixed to the piston rod of the electric push rod, a left fixed plate fixed on the outer wall of the left fixed rod, an infrared rangefinder mounted on the outer wall of the left fixed rod for measuring the distance between the left and right fixed rods, a screw rotatably connected between the two vertical plate ends of the frame for driving the movable plate to move left and right, and a motor mounted on the outer wall of the frame for driving the screw to rotate.

[0009] In a preferred embodiment, the detection mechanism further includes two rotating columns that are rotatably connected to the two vertical plate ends of the frame, and the screw is coaxially fixed between the two rotating columns and arranged horizontally, and the screw is threadedly connected to the moving plate.

[0010] In a preferred embodiment, the detection mechanism further includes a rotating rod coaxially fixed on the outer wall of one of the rotating columns, a rotating shaft coaxially connected to the motor output shaft, and a driving gear and a driven gear meshing with each other. The driving gear is coaxially fixed on the outer circumferential wall of the rotating rod, and the driven gear is coaxially fixed on the outer circumferential wall of the rotating shaft. The number of teeth of the driving gear is less than the number of teeth of the driven gear.

[0011] In a preferred embodiment, a mounting plate is fixed on the bottom surface of the movable plate, the cylinder body of the electric cylinder is mounted on the bottom surface of the mounting plate, the right fixing rod is fixed between the piston rod of the electric cylinder and the piston rod, the right fixing rod is fixed at the middle position of the top surface of the right fixing plate, the cylinder body of the electric push rod is fixed on the right side surface of the left vertical plate end of the frame, the left fixing rod is L-shaped, the horizontal end of the left fixing rod is fixed on the right side surface of the piston rod of the electric push rod, the left fixing plate is fixed on the right side surface of the vertical end of the left fixing rod, and a mounting groove is provided on the right side surface of the vertical end of the left fixing rod, and the infrared rangefinder is installed inside the mounting groove on the right side surface of the vertical end of the left fixing rod;

[0012] In a preferred embodiment, the measuring end of the infrared rangefinder and the right side surface of the vertical end of the left fixed rod are located on the same plane, the left fixed plate corresponds to the position of the quartz crucible and their sizes are compatible, and the right fixed plate corresponds to the position of the quartz crucible and their sizes are compatible.

[0013] In a preferred embodiment, a guide groove is provided on the bottom surface of the crossbar end of the frame, and a guide block is fixed on the top surface of the movable plate, which is slidably connected to the guide groove on the bottom surface of the crossbar end of the frame.

[0014] In a preferred embodiment, the longitudinal cross-sectional shape of the guide groove on the bottom surface of the frame horizontal plate is convex, and the shape of the guide block is convex, which matches the shape of the guide groove on the bottom surface of the frame horizontal plate.

[0015] These six settings ensure stable screw rotation and drive the moving plate, guaranteeing the stability of the testing mechanism, smoother motor power transmission, adjustable screw rotation speed for improved testing accuracy, precise fit of the right and left fixed plates to the quartz crucible, accurate installation of the infrared rangefinder for distance measurement, more accurate infrared ranging data, stable fit of the fixed plates to the crucible to ensure accurate wall thickness calculation, smoother sliding of the moving plate to prevent deviation, improved reliability of the testing mechanism, and enhanced sliding stability to ensure a smooth testing process.

[0016] In a preferred embodiment, a plurality of support columns at the bottom of the working plate are arranged in a matrix, and an anti-slip plate is fixed on the bottom surface of the support columns, and the bottom surface of the anti-slip plate is provided with anti-slip texture.

[0017] This feature makes the device more stable and less prone to slipping, thus improving its placement stability.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the setting of a working plate, matrix-arranged support columns, anti-slip plate, and pneumatic chuck, allows the support columns at the bottom of the working plate to stably support the entire device. The anti-slip texture on the anti-slip plate can enhance the friction between the device and the placement surface, preventing the device from sliding or shifting. At the same time, the external air supply device is connected to the pneumatic chuck, which can adjust the clamping force according to the different sizes of the quartz crucibles, and achieve stable and limited clamping of quartz crucibles of different specifications. This effectively prevents the quartz crucibles from shaking or shifting during the testing process, laying the foundation for subsequent accurate testing and achieving the effect of ensuring testing stability and improving the applicability of the device.

[0020] 2. This utility model, through the coordinated arrangement of various components of the detection mechanism, allows the motor-driven screw to rotate, which in turn moves the moving plate left and right. The electric cylinder drives the right fixed plate to rise and fall, facilitating a tight fit between the right fixed plate and the inner wall of the quartz crucible. After the electric push rod pushes the left fixed plate to fit tightly against the outer circumference of the quartz crucible, the infrared rangefinder can accurately measure the distance between the vertical end of the left fixed rod and the electric cylinder, and then calculate the wall thickness of the quartz crucible. The entire process eliminates the need for manual measurement, which not only avoids subjective errors in manual measurement and improves the accuracy of wall thickness detection, but also saves on tedious manual operation steps, detection time, and labor costs, thereby improving detection efficiency and accuracy while reducing manpower consumption. Attached Figure Description

[0021] Figure 1This is one of the overall structural schematic diagrams of this utility model;

[0022] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0023] Figure 3 This is a partial exploded view of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall structure of the detection mechanism in this utility model;

[0025] Figure 5 This is one of the exploded views of the testing mechanism in this utility model;

[0026] Figure 6 This is the second partial exploded view of the testing mechanism in this utility model;

[0027] Figure 7 This is the third partial exploded view of the testing mechanism in this utility model;

[0028] The meanings of the labels in the diagram are as follows:

[0029] 1. Working plate; 11. Support column; 12. Anti-slip plate; 2. Pneumatic chuck; 3. Detection mechanism; 31. Frame; 32. Rotating column; 33. Screw; 34. Moving plate; 35. Guide block; 36. Electric cylinder; 37. Mounting plate; 38. Right fixed rod; 39. Right fixed plate; 310. Electric push rod; 311. Left fixed rod; 312. Left fixed plate; 313. Infrared rangefinder; 314. Rotating rod; 315. Motor; 316. Rotating shaft; 317. Driven gear; 318. Driving gear; 4. Quartz crucible. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figures 1-3 The present invention provides a technical solution: a quartz crucible wall thickness detection and calibration device, including a working plate 1 and a quartz crucible 4. Several support columns 11 are fixed on the bottom surface of the working plate 1. The quartz crucible 4 is located above the working plate 1, and a pneumatic chuck 2 for clamping the quartz crucible 4 is installed on the top surface of the working plate 1 near the middle position.

[0033] By setting up a working plate 1, several support columns 11, and connecting an external gas supply device to a pneumatic chuck 2, quartz crucibles 4 of different sizes can be clamped and positioned.

[0034] In this embodiment, a number of support columns 11 at the bottom of the working plate 1 are arranged in a matrix, and an anti-slip plate 12 is fixed on the bottom surface of the support column 11, and the bottom surface of the anti-slip plate 12 is provided with anti-slip texture.

[0035] The matrix arrangement of the support columns 11 at the bottom of the working plate 1, the anti-slip plate 12 at the bottom of the support column 11, and the anti-slip texture makes the support more uniform and stable. The anti-slip plate 12 and the texture enhance the friction, making the device less likely to slide when placed, thus improving the overall stability.

[0036] like Figures 1-2 , Figures 4-7 As shown, in addition to the above, it also includes: a detection mechanism 3, used to detect the wall thickness of the quartz crucible 4. The detection mechanism 3 includes a frame 31 fixed on the top surface of the working plate 1, a movable plate 34 slidably connected to the bottom surface of the horizontal plate end of the frame 31, an electric cylinder 36 installed on the outer wall of the movable plate 34, a right fixed plate 39 fixed to the piston rod of the electric cylinder 36 by a right fixed rod 38, an electric push rod 310 installed on the outer wall of the left vertical plate end of the frame 31, a left fixed rod 311 fixed to the piston rod of the electric push rod 310, a left fixed plate 312 fixed on the outer wall of the left fixed rod 311, an infrared rangefinder 313 installed on the outer wall of the left fixed rod 311 and used to measure the distance between the left fixed rod 311 and the right fixed rod 38, a screw 33 rotatably connected between the two vertical plate ends of the frame 31 and used to drive the movable plate 34 to move left and right, and a motor 315 installed on the outer wall of the frame 31 and used to drive the screw 33 to rotate.

[0037] The wall thickness of the quartz crucible 4 can be tested by the testing agency 3, eliminating the need for manual testing, which saves time and effort.

[0038] Furthermore, the testing mechanism 3 also includes two rotating columns 32 that are rotatably connected to the two vertical plate ends of the frame 31 respectively. The screw 33 is coaxially fixed between the two rotating columns 32 and is arranged horizontally. The screw 33 is threadedly connected to the moving plate 34.

[0039] Through the rotating column 32 and screw 33 in the detection mechanism 3, the rotating column 32 makes the screw 33 rotate stably. The screw 33 is threadedly connected to the moving plate 34, so that the moving plate 34 can move smoothly left and right, ensuring the stability of the movement of the components during the operation of the detection mechanism 3 and avoiding deviation from affecting the detection.

[0040] Specifically, the detection mechanism 3 also includes a rotating rod 314 coaxially fixed on the outer wall of one of the rotating columns 32, a rotating shaft 316 coaxially connected to the output shaft of the motor 315, and a driving gear 318 and a driven gear 317 meshing with each other. The driving gear 318 is coaxially fixed on the outer circumference of the rotating rod 314, and the driven gear 317 is coaxially fixed on the outer circumference of the rotating shaft 316. The number of teeth of the driving gear 318 is less than the number of teeth of the driven gear 317.

[0041] Through the rotating rod 314, rotating shaft 316, driving gear 318 and driven gear 317 (the driving gear has fewer teeth), the power of the motor 315 is transmitted to the rotating column 32 via the gear transmission, making the power transmission smoother. It can also adjust the speed of the screw 33, improve the movement accuracy of the moving plate 34, and thus improve the detection accuracy.

[0042] It is worth noting that a mounting plate 37 is fixed on the bottom surface of the movable plate 34, the cylinder body of the electric cylinder 36 is mounted on the bottom surface of the mounting plate 37, the right fixing rod 38 is fixed between the piston rod of the electric cylinder 36 and the piston rod of the electric cylinder 36, the right fixing rod 38 is fixed at the middle position of the top surface of the right fixing plate 39, the cylinder body of the electric push rod 310 is fixed on the right side surface of the left vertical plate end of the frame 31, the left fixing rod 311 is L-shaped, the horizontal end of the left fixing rod 311 is fixed on the right side surface of the piston rod of the electric push rod 310, the left fixing plate 312 is fixed on the right side surface of the vertical end of the left fixing rod 311, the right side surface of the vertical end of the left fixing rod 311 is provided with a mounting groove, and the infrared rangefinder 313 is installed inside the mounting groove on the right side surface of the vertical end of the left fixing rod 311.

[0043] The mounting plate 37 on the movable plate 34, the electric cylinder 36, the right fixing rod 38, the right fixing plate 39, the electric push rod 310 on the frame 31, the L-shaped left fixing rod 311, the left fixing plate 312, and the infrared rangefinder 313 enable the right fixing plate 39 and the left fixing plate 312 to be precisely aligned and fit against the crucible, and the infrared rangefinder 313 to be stably installed to accurately measure the distance.

[0044] It is worth noting that the measuring end of the infrared rangefinder 313 and the right side surface of the vertical end of the left fixed rod 311 are on the same plane. The left fixed plate 312 corresponds to the position of the quartz crucible 4 and the size is compatible. The right fixed plate 39 corresponds to the position of the quartz crucible 4 and the size is compatible.

[0045] By aligning the measuring end of the infrared rangefinder 313 with the vertical end of the left fixed rod 311, and by fitting the left and right fixed plates to the quartz crucible 4, the infrared ranging data is free of deviation. The fixed plates can fit tightly against the outer and inner walls of the crucible, ensuring the accuracy of subsequent wall thickness calculations and reducing detection errors.

[0046] It is worth emphasizing that the bottom surface of the crossbar end of the frame 31 is provided with a guide groove arranged in a horizontal direction, and the top surface of the movable plate 34 is fixed with a guide block 35 that is slidably connected to the guide groove on the bottom surface of the crossbar end of the frame 31.

[0047] The guide block 35 on the moving plate 34 is guided by the guide groove at the end of the horizontal plate of the frame 31. The guide block 35 slides in the guide groove to guide the movement of the moving plate 34, making the moving plate 34 slide more smoothly, avoiding deviation during movement, and ensuring the reliability of the operation of the detection mechanism 3.

[0048] It is worth noting that the longitudinal section shape of the guide groove on the bottom surface of the horizontal plate of the frame 31 is convex, and the shape of the guide block 35 is convex, which matches the shape of the guide groove on the bottom surface of the horizontal plate of the frame 31.

[0049] The convex guide groove at the end of the horizontal plate of the frame 31 and the matching convex guide block 35 prevent the guide block 35 from disengaging from the guide groove, further enhancing the stability of the sliding plate 34 and ensuring a smooth and uninterrupted testing process.

[0050] It should be added that the pneumatic chuck 2, electric cylinder 36, electric push rod 310, infrared rangefinder 313, and motor 315 are all electrically connected to the external PLC and external power supply through wires, and the external PLC is also electrically connected to the external power supply through wires.

[0051] Finally, it should be noted that the pneumatic chuck 2, electric cylinder 36, electric push rod 310, infrared rangefinder 313, motor 315 and other components in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0052] In practical use, this embodiment includes the following steps:

[0053] 1. After the device is started, the external PLC controls the pneumatic chuck 2 to open, placing the quartz crucible 4 in the corresponding position above the work plate 1. The PLC then controls the pneumatic chuck 2 to close, limiting and clamping the quartz crucible 4 to ensure the crucible is in a stable position.

[0054] 2. The PLC controls the motor 315 to start, and the motor 315 drives the related components to drive the screw 33 to rotate, so that the moving plate 34 moves laterally along the frame 31 until the right fixed plate 39 is close to the inner side of the quartz crucible 4; then the PLC controls the electric cylinder 36 to move, pushing the right fixed rod 38 to drive the right fixed plate 39 to rise and fall and fit against the inner wall of the quartz crucible 4.

[0055] 3. The PLC controls the electric push rod 310 to extend, pushing the left fixed rod 311 to move the left fixed plate 312 toward the quartz crucible 4 until the left fixed plate 312 fits against the outer circumference of the quartz crucible 4.

[0056] 4. After the left and right fixed plates are in contact with the crucible, the PLC controls the infrared rangefinder 313 to start and measure the distance between the left fixed rod 311 and the right fixed rod 38. Finally, the wall thickness of the quartz crucible 4 is calculated according to the preset formula (measurement data - diameter of left fixed plate 312 - (radius of right fixed plate 39 - half the width of right fixed rod 38)). After the test is completed, the PLC controls each component to reset.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quartz crucible wall thickness detection and calibration device, comprising a working plate (1) and a quartz crucible (4), characterized in that, Several support columns (11) are fixed on the bottom surface of the working plate (1). The quartz crucible (4) is located above the working plate (1), and a pneumatic chuck (2) for clamping the quartz crucible (4) is installed on the top surface of the working plate (1) near the middle position. The working plate (1) also includes: The detection mechanism (3) is used to detect the wall thickness of the quartz crucible (4). The detection mechanism (3) includes a frame (31) fixed on the top surface of the working plate (1), a movable plate (34) slidably connected to the bottom surface of the horizontal plate end of the frame (31), an electric cylinder (36) installed on the outer wall of the movable plate (34), a right fixed plate (39) fixed to the piston rod of the electric cylinder (36) by a right fixed rod (38), an electric push rod (310) installed on the outer wall of the left vertical plate end of the frame (31), and an electric push rod (310). The piston rod is fixed to the left fixed rod (311), the left fixed plate (312) is fixed to the outer wall of the left fixed rod (311), the infrared rangefinder (313) is installed on the outer wall of the left fixed rod (311) and is used to measure the distance between the left fixed rod (311) and the right fixed rod (38), the screw (33) is rotatably connected between the two vertical plate ends of the frame (31) and is used to drive the moving plate (34) to move left and right, and the motor (315) is installed on the outer wall of the frame (31) and is used to drive the screw (33) to rotate.

2. The quartz crucible wall thickness detection and calibration device according to claim 1, characterized in that: The detection mechanism (3) also includes two rotating columns (32) that are rotatably connected to the two vertical plate ends of the frame (31), and the screw (33) is coaxially fixed between the two rotating columns (32) and arranged horizontally, and the screw (33) is threadedly connected to the moving plate (34).

3. The quartz crucible wall thickness detection and calibration device according to claim 2, characterized in that: The detection mechanism (3) further includes a rotating rod (314) coaxially fixed on the outer wall of one of the rotating columns (32), a rotating shaft (316) coaxially connected to the output shaft of the motor (315), and a driving gear (318) and a driven gear (317) meshing with each other. The driving gear (318) is coaxially fixed on the outer circumference of the rotating rod (314), and the driven gear (317) is coaxially fixed on the outer circumference of the rotating shaft (316). The number of teeth of the driving gear (318) is less than the number of teeth of the driven gear (317).

4. The quartz crucible wall thickness detection and calibration device according to claim 1, characterized in that: The bottom surface of the movable plate (34) is fixed with an mounting plate (37). The cylinder body of the electric cylinder (36) is mounted on the bottom surface of the mounting plate (37). The right fixed rod (38) is fixed between the piston rod of the electric cylinder (36) and the right fixed rod (38) is fixed at the middle position of the top surface of the right fixed plate (39). The cylinder body of the electric push rod (310) is fixed on the right side surface of the left vertical plate end of the frame (31). The left fixed rod (311) is L-shaped. The horizontal end of the left fixed rod (311) is fixed on the right side surface of the piston rod of the electric push rod (310). The left fixed plate (312) is fixed on the right side surface of the vertical end of the left fixed rod (311). The right side surface of the vertical end of the left fixed rod (311) is provided with a mounting groove, and the infrared rangefinder (313) is installed inside the mounting groove on the right side surface of the vertical end of the left fixed rod (311).

5. The quartz crucible wall thickness detection and calibration device according to claim 4, characterized in that: The measuring end of the infrared rangefinder (313) and the right side surface of the vertical end of the left fixed rod (311) are on the same plane. The left fixed plate (312) corresponds to the position of the quartz crucible (4) and the size is compatible. The right fixed plate (39) corresponds to the position of the quartz crucible (4) and the size is compatible.

6. The quartz crucible wall thickness detection and calibration device according to claim 1, characterized in that: The bottom surface of the crossbar end of the frame (31) is provided with a guide groove arranged in a horizontal direction, and the top surface of the movable plate (34) is fixed with a guide block (35) that is slidably connected to the guide groove on the bottom surface of the crossbar end of the frame (31).

7. The quartz crucible wall thickness detection and calibration device according to claim 6, characterized in that: The longitudinal cross-sectional shape of the guide groove on the bottom surface of the horizontal plate of the frame (31) is convex, and the shape of the guide block (35) is convex, which is compatible with the shape of the guide groove on the bottom surface of the horizontal plate of the frame (31).

8. The quartz crucible wall thickness detection and calibration device according to claim 1, characterized in that: The working plate (1) has several support columns (11) arranged in a matrix at the bottom. Anti-slip plates (12) are fixed on the bottom surface of the support columns (11), and anti-slip textures are provided on the bottom surface of the anti-slip plates (12).

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