Seed crystal detection device

Abstract

The embodiment of the utility model provides a seed crystal detection device. The seed crystal detection device comprises a machine table, a driving mechanism, a grabbing mechanism and a detection mechanism, wherein the driving mechanism is installed on the machine table, the driving mechanism is connected with the grabbing mechanism, the driving mechanism is used for driving the grabbing mechanism to move to a target position, and the grabbing mechanism is used for grabbing seed crystals and adjusting the positions of the seed crystals; the detection mechanism is mounted on the machine table, the detection mechanism is arranged corresponding to the target position, and the detection mechanism is used for detecting the size and internal defects of the seed crystal. Therefore, the seed crystal quality is guaranteed, the accident that a crystal bar falls off due to poor seed crystal quality is avoided, the production yield of the silicon bar is improved, and the production safety risk is reduced. The seed crystal detection device is high in detection accuracy and high in detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a seed crystal detection device. Background Art

[0002] With the rapid development of the photovoltaic industry, the demand for silicon rods, as the basic material for photovoltaic power generation, is increasing. Currently, the process for preparing silicon rods is as follows: after heating and melting polycrystalline silicon to a specified temperature, one end of the seed crystal is immersed in molten silicon liquid. After welding, seeding, shoulder release, shoulder rotation, equalization of diameters, and finishing, a silicon rod is prepared. During the crystal pulling process, defects such as seed crystal size and hidden cracks can easily cause silicon rods to fall. This can cause the silicon rod to be scrapped and the crucible to be damaged at the very least, or even cause the single crystal furnace to explode, resulting in serious safety accidents. Therefore, it is very necessary to test the seed crystal for relevant indicators before pulling. However, currently, manual inspection is usually only possible to detect the outer dimensions of the seed crystal, and it is impossible to effectively detect internal defects in the seed crystal. Manual inspection also has large errors and consumes time. Utility Model Content

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a seed crystal detection device that overcomes the above problems or partially solves the above problems.

[0004] In order to solve the above problems, the embodiment of the present utility model discloses a seed crystal detection device, comprising: a machine platform, a driving mechanism, a gripping mechanism and a detection mechanism; wherein,

[0005] The driving mechanism is installed on the machine platform, and the driving mechanism is connected to the grasping mechanism. The driving mechanism is used to drive the grasping mechanism to move to a target position, and the grasping mechanism is used to grasp the seed crystal and adjust the position of the seed crystal;

[0006] The detection mechanism is installed on the machine platform, and is arranged corresponding to the target position. The detection mechanism is used to detect the size and internal defects of the seed crystal.

[0007] Optionally, the driving mechanism includes a first component, a second component and a third component;

[0008] The first component is mounted on the machine platform and is fixedly connected to the machine platform;

[0009] The second component is slidably connected to the first component along a first direction;

[0010] The third component is connected to the grasping mechanism and is slidably connected to the second component along a second direction, and the second direction intersects with the first direction.

[0011] Optionally, the first component is provided with a first slide rail extending along the first direction, and the second component is provided with a first slider, and the first slider is slidably connected to the first slide rail;

[0012] And / or, the second component is provided with a second slide rail extending along the second direction, and the third component is provided with a second slider, and the second slider is slidably connected to the second slide rail.

[0013] Optionally, the first component is provided with a first slide rail extending along the first direction, and the second component is provided with a first slider, and the first slider is slidably connected to the first slide rail;

[0014] And / or, the second component is provided with a second slide rail extending along the second direction, and the third component is provided with a second slider, and the second slider is slidably connected to the second slide rail.

[0015] Optionally, the detection mechanism includes two groups of first light sources and first cameras, one group includes a size detection light source and a size detection camera, and the other group includes an infrared light source and an internal detection camera;

[0016] The size detection light source and the size detection camera cooperate to detect the size of the seed crystal;

[0017] The infrared light source and the internal detection camera cooperate to detect internal defects of the seed crystal.

[0018] Optionally, when the grasping mechanism grasps the seed crystal and moves to the target position, it first moves in front of the internal inspection camera to perform hidden crack inspection, and then moves in front of the size inspection camera to perform size inspection.

[0019] Optionally, the gripping mechanism comprises a base and two clamping components;

[0020] The base is connected to the driving mechanism;

[0021] The two clamping components are connected to the same side of the base, and at least one of the clamping components is movably connected to the base along a first direction to adjust the distance between the two clamping components. The two clamping components are used to clamp both ends of the seed crystal.

[0022] Optionally, the clamping component includes a connecting piece and a rotating shaft for clamping the seed crystal;

[0023] The connecting member is connected to the base;

[0024] The rotating shaft passes through the connecting member and is connected to the connecting member so as to rotate around the first direction.

[0025] Optionally, the seed crystal detection device further comprises a support base, and the platform is provided with a third slide rail extending along the first direction;

[0026] The support seat is movably connected to the third slide rail along a first direction for supporting the seed crystal;

[0027] The grabbing mechanism is arranged above the supporting seat;

[0028] The third slide rail includes a discharge end and a grabbing end along the first direction. When the support seat slides to the discharge end, the seed crystal is placed on the support seat; when the support seat slides to the grabbing end, the grabbing mechanism is used to grab the seed crystal on the support seat.

[0029] Optionally, the support seat has a V-shaped support surface on a side away from the third slide rail, and the V-shaped support surface encloses a V-shaped accommodation space for placing the seed crystal.

[0030] Optionally, the seed crystal detection device further includes a safety detection component;

[0031] The safety detection component is installed on the machine and is arranged on both sides of the discharge end in a third direction, wherein the third direction intersects with the first direction.

[0032] Optionally, the safety detection component includes gratings arranged in pairs;

[0033] The gratings arranged in pairs are respectively arranged on two opposite sides of the discharge end in the third direction.

[0034] Optionally, the seed crystal detection device further includes a second light source and a second camera;

[0035] The second light source is arranged between the second camera and the third slide rail along the first direction;

[0036] The second light source is provided with a through hole opposite to the second camera, so that the second camera can photograph the code on the seed crystal through the through hole.

[0037] Optionally, the seed crystal detection device further includes a limiter;

[0038] Along the first direction, the limiting member is arranged between the second light source and the third slide rail, and the limiting member is arranged corresponding to the supporting seat;

[0039] The limiting member can move along the second direction and switch between a first position and a second position. In the first position, the height of the limiting member is lower than the height of the support seat. In the second position, the limiting member is opposite to the support seat and is used to limit the seed crystal, wherein the second direction intersects with the first direction.

[0040] The present invention has the following advantages:

[0041] In an embodiment of the present invention, the driving mechanism can drive the gripping mechanism to move. Since the gripping mechanism is used to grip the seed crystal, it is convenient to adjust the position of the seed crystal. Since the detection mechanism is installed on the machine, the position of the detection mechanism is fixed, and the detection mechanism is set corresponding to the target position. In this way, the gripping mechanism is driven to move by the driving mechanism to bring the seed crystal to the target position, and then the size and internal defects of the seed crystal are detected by the detection mechanism to ensure the quality of the seed crystal, thereby avoiding accidents caused by the poor quality of the seed crystal causing the crystal rod to fall, improving the production yield of the silicon rod, and reducing production safety risks. In the embodiment of the present invention, the quality of the seed crystal can be detected by the seed crystal detection device, which can reduce errors, shorten working hours, and improve detection accuracy and detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a structural diagram of a seed crystal detection device of the present invention;

[0043] Figure 2 This is a structural diagram of another seed crystal detection device of the present invention;

[0044] Figure 3 This is a structural diagram of a detection mechanism of the utility model;

[0045] Figure 4 This is a structural diagram of a grabbing mechanism of the utility model;

[0046] Figure 5 This is a partial structural diagram of a seed crystal detection device of the present invention;

[0047] Figure 6 The utility model is a detection flow chart of a seed crystal detection device.

[0048] Description of reference numerals:

[0049] 11. Machine; 111. Table; 112. Third slide rail; 12. Protective cover; 121. Transparent portion; 2. Driving mechanism; 21. First component; 22. Second component; 23. Third component; 3. Grasping mechanism; 31. Base; 311. Fourth slide rail; 32. Clamping component; 321. Connecting member; 322. Rotating shaft; 33. Fourth driving member; 34. Transmission assembly; 341. First roller; 342. Synchronous belt; 34 3. Second roller; 4. Detection mechanism; 41. First light source; 411. Dimension detection light source; 412. Infrared light source; 42. First camera; 421. Dimension detection camera; 422. Internal detection camera; 5. Support seat; 51. V-shaped support surface; 6. Safety detection component; 61. Grating; 71. Second light source; 711. Through hole; 72. Second camera; 73. Limiting member; 74. Detection member; 8. Start button; 9. Seed crystal. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0051] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of these features. In the description of this utility model, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected items, and the character " / " generally indicates an "or" relationship between the connected items.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0054] One of the core concepts of the embodiment of the present utility model is to disclose a seed crystal detection device, including: a machine platform 11, a driving mechanism 2, a gripping mechanism 3 and a detection mechanism 4; wherein, the driving mechanism 2 is installed on the machine platform 11, the driving mechanism 2 is connected to the gripping mechanism 3, the driving mechanism 2 is used to drive the gripping mechanism 3 to move to a target position, the gripping mechanism 3 is used to grip the seed crystal 9 and adjust the position of the seed crystal 9; the detection mechanism 4 is installed on the machine platform 11, the detection mechanism 4 is set corresponding to the target position, and the detection mechanism 4 is used to detect the size and internal defects of the seed crystal 9.

[0055] In an embodiment of the present invention, the driving mechanism 2 can drive the gripping mechanism 3 to move. Since the gripping mechanism 3 is used to grab the seed crystal 9, it is convenient to adjust the position of the seed crystal 9. Since the detection mechanism 4 is installed on the machine 11, the position of the detection mechanism 4 is fixed, and the detection mechanism 4 is set corresponding to the target position. In this way, the gripping mechanism 3 is driven by the driving mechanism 2 to move, and the seed crystal 9 is brought to the target position, and then the size and internal defects of the seed crystal 9 are detected by the detection mechanism 4 to ensure the quality of the seed crystal 9, thereby avoiding accidents caused by the poor quality of the seed crystal 9 causing the crystal rod to fall, improving the production yield of the silicon rod, and reducing production safety risks. In the embodiment of the present invention, the quality of the seed crystal 9 can be detected by the seed crystal detection device, which can reduce errors, shorten working hours, and improve detection accuracy and detection efficiency.

[0056] Specifically, the platform 11 may be the main structure of the seed crystal detection device, and is used to support and install the driving mechanism 2, the gripping mechanism 3, the detection mechanism 4, etc. Figure 1 As shown, the driving mechanism 2 , the gripping mechanism 3 and the detecting mechanism 4 are installed on the table 111 of the machine 11 .

[0057] Specifically, the driving mechanism 2 can be installed on the machine platform 11 , and the driving mechanism 2 is connected to the gripping mechanism 3 to drive the gripping mechanism 3 to move, that is, the position of the gripping mechanism 3 is adjustable.

[0058] Specifically, the detection mechanism 4 can be installed on the machine platform 11 , and the detection mechanism 4 can be fixedly connected to the machine platform 11 , so that the position of the detection mechanism 4 is fixed, which facilitates controlling the detection accuracy of the detection mechanism 4 .

[0059] Specifically, the detection mechanism 4 can be used to detect the size and internal defects of the seed crystal 9. By detecting the size and internal defects of the seed crystal 9 at the same time, the quality of the seed crystal 9 can be more clearly known.

[0060] Furthermore, the grasping mechanism 3 can be used to grasp the seed crystal 9. In this way, the detection process of the seed crystal 9 may include: first controlling the grasping mechanism 3 to grasp the seed crystal 9, and then controlling the driving mechanism 2 to drive the grasping mechanism 3 to move to the target position, so that the seed crystal 9 falls into the detection range of the detection mechanism 4. The detection mechanism 4 can detect and obtain the size and internal defects of the seed crystal 9, and then know the quality of the seed crystal 9.

[0061] Specifically, the gripping mechanism 3 can clamp both ends of the seed crystal 9 so that the detecting mechanism 4 can fully detect the seed crystal 9 .

[0062] Specifically, in the embodiment of the present invention, the detection mechanism 4 can detect the seed crystal 9 without contacting the seed crystal 9, resulting in a small detection error, high stability of the detection result, and avoidance of secondary damage to the seed crystal 9. Moreover, the present invention can also avoid radiation hazards to workers during the detection of the seed crystal 9, and has high applicability.

[0063] Optionally, the driving mechanism 2 includes a first component 21, a second component 22 and a third component 23; the first component 21 is mounted on the machine 11 and is fixedly connected to the machine 11; the second component 22 is slidably connected to the first component 21 along a first direction; the third component 23 is connected to the grasping mechanism 3 and is slidably connected to the second component 22 along a second direction, and the second direction intersects with the first direction.

[0064] In an embodiment of the present utility model, when the second component 22 moves along the first direction, the third component 23 can drive the grasping mechanism 3 to move synchronously along the first direction; when the third component 23 moves along the second direction, it can drive the grasping mechanism 3 to move synchronously along the second direction, so that the position of the grasping mechanism 3 in the first direction and / or the second direction can be adjusted, so as to ensure the reliability of driving the grasping mechanism 3 to the target position, thereby improving the reliability of detecting the size and internal defects of the seed crystal 9.

[0065] Specifically, the first component 21 can be clamped on the machine 11 by a bracket, and the first component 21 can be fixedly installed on the machine 11. The first component 21 can be set above the detection mechanism 4, and the first component 21 can extend along the first direction.

[0066] Specifically, the second component 22 can be mounted on the first component 21, and the second component 22 can be slidably connected to the first component 21 along the first direction, and the second component 22 can extend along the second direction. The driving mechanism 2 can include a first driving member that can be connected to the second component 22 to provide driving force to the second component 22. The first driving member can be a cylinder or a motor, etc.

[0067] Specifically, the third component 23 can be mounted on the second component 22 and can be slidably connected to the second component 22 along the second direction. The driving mechanism 2 can also include a second driving member that can be connected to the third component 23 to provide driving force to the third component 23. The second driving member can be a cylinder or a motor, etc.

[0068] Specifically, the grasping mechanism 3 may be fixedly connected to the third component 23 , so that the third component 23 drives the grasping mechanism 3 to move synchronously.

[0069] Specifically, the second direction intersects the first direction. The embodiment of the present invention only takes the first direction as the X direction and the second direction as the Z axis direction as an example. Other situations can refer to the settings. Figure 1 As shown, the second component 22 can move back and forth linearly in the horizontal direction relative to the first component 21, and the third component 23 can move up and down in the vertical direction relative to the second component 22.

[0070] Specifically, the second component 22 and the first component 21 can be combined to form a transverse module, wherein the second component 22 can be slidably connected to the first component 21 by means of a slider and a slide rail, or the second component 22 can also be movably connected to the first component 21 by means of a gear rack meshing.

[0071] Specifically, the third component 23 and the second component 22 can be combined to form a lifting module. The third component 23 can be slidably connected to the second component 22 by means of a slider and a slide rail, or the third component 23 can also be movably connected to the second component 22 by means of a gear rack meshing.

[0072] Optionally, the first component 21 is provided with a first slide rail extending along the first direction, and the second component 22 is provided with a first slider, and the first slider is slidably connected to the first slide rail.

[0073] In the embodiment of the present invention, the first slider is slidably connected to the first slide rail, and the first slide rail extends along the first direction, so that the second component 22 is slidably connected to the first component 21 along the first direction, and the implementation method is simple and convenient.

[0074] Optionally, the second component 22 is provided with a second slide rail extending along the second direction, and the third component 23 is provided with a second slider, which is slidably connected to the second slide rail.

[0075] In the embodiment of the present invention, the second slider is slidably connected to the second slide rail, and the second slide rail extends along the second direction, so that the third component 23 is slidably connected to the second component 22 along the second direction, and the implementation method is simple and convenient.

[0076] Alternatively, as Figure 3 As shown, the detection mechanism 4 includes two groups of first light sources 41 and first cameras 42, one group includes a size detection light source 411 and a size detection camera 421, and the other group includes an infrared light source 412 and an internal detection camera 422; the size detection light source 411 and the size detection camera 421 are used together to detect the size of the seed crystal 9; the infrared light source 412 and the internal detection camera 422 are used together to detect internal defects of the seed crystal 9.

[0077] In this embodiment of the present invention, the size detection light source 411 and the size detection camera 421 cooperate to facilitate detection of the size of the seed crystal 9 when the grasping mechanism 3 moves the seed crystal 9 between the size detection light source 411 and the size detection camera 421. The infrared light source 412 and the internal detection camera 422 cooperate to facilitate detection of internal defects in the seed crystal 9 when the grasping mechanism 3 moves the seed crystal 9 between the infrared light source 412 and the internal detection camera 422.

[0078] Specifically, dimension detection camera 421 can be an area array camera, used to detect the dimensions of seed crystal 9, including diameter, taper, coaxiality, and other inspection indicators. Dimension detection light source 411 can be an illumination source, used to provide illumination and create an appropriate ambient brightness for area array camera inspection. Dimension detection light source 411 and dimension detection camera 421 work together to visually identify the dimensions of seed crystal 9, which is faster and more accurate than conventional manual measuring tools.

[0079] Specifically, internal inspection camera 422 can be a line scan camera used to detect hidden cracks in seed crystal 9. Infrared light source 412 can use infrared light of a specific wavelength to penetrate the interior of seed crystal 9, providing an image of the interior of seed crystal 9 for visual inspection. Infrared light source 412 and internal inspection camera 422 work together to effectively detect hidden cracks within seed crystal 9 by using the specific infrared light source 412 to penetrate the interior of seed crystal 9 and simultaneously employ visual recognition imaging technology.

[0080] Optionally, the internal inspection camera 422 can be located in front of the size inspection camera 421, so that the seed crystal 9 is first inspected for hidden cracks before the size inspection. While the grasping mechanism 3 drives the seed crystal 9 in the direction from the internal inspection camera 422 to the size inspection camera 421, the internal inspection camera 422 can complete the hidden crack inspection of the seed crystal 9, thereby improving the inspection cycle and shortening the movement of the grasping mechanism 3 and the seed crystal 9.

[0081] Optionally, the first light source 41 and the first camera 42 are disposed on opposite sides of the first component 21 in the third direction, wherein a plane where the first direction and the second direction are located intersects with the third direction.

[0082] Specifically, the third direction intersects the plane where the first direction and the second direction are located. Figure 1 As shown, the embodiment of the present invention is only illustrated by taking the first direction as the X direction, the second direction as the Z axis direction, and the third direction as the Y axis direction. Other situations can refer to the settings.

[0083] Alternatively, as Figure 4 As shown, the gripping mechanism 3 includes a base 31 and two clamping components 32 ; the base 31 is connected to the driving mechanism 2 ; the two clamping components 32 are connected to the same side of the base 31 , and the two clamping components 32 are used to clamp both ends of the seed crystal 9 .

[0084] In the embodiment of the present invention, the two clamping components 32 clamp the two ends of the seed crystal 9 so that the seed crystal 9 is fully exposed, thereby improving the adequacy of the detection.

[0085] Optionally, at least one clamping component 32 is movably connected to the base 31 along the first direction, so that the distance between the two clamping components 32 is adjustable to accommodate seed crystals 9 of different lengths, thereby improving the versatility of the grasping mechanism 3 .

[0086] Specifically, the driving mechanism 2 can be fixedly connected to the base 31 to drive the entire grasping mechanism 3 to move through the base 31 .

[0087] Specifically, one of the two clamping components 32 can be fixedly connected to the base 31, while the other can be movably connected to the base 31 along the first direction. Alternatively, both clamping components 32 can be movably connected to the base 31 along the first direction. The gripping mechanism 3 can include a third driving member that can be connected to the clamping components 32 to provide driving force for the clamping components 32. The third driving member can be a motor or a cylinder, etc.

[0088] Specifically, the base 31 may be provided with a fourth slide rail 311 extending along the first direction, and the clamping component 32 may be slidably connected to the fourth slide rail 311; or, the base 31 may also be provided with a rack extending along the first direction, and the clamping component 32 may be meshedly connected to the rack structure.

[0089] Optionally, the clamping component 32 includes a connecting piece 321 and a rotating shaft 322 for clamping the seed crystal 9; the connecting piece 321 is connected to the base 31; the rotating shaft 322 passes through the connecting piece 321 and is connected to the connecting piece 321 by rotating around a first direction.

[0090] In an embodiment of the present invention, the rotating shaft 322 can drive the seed crystal 9 to rotate, so that the seed crystal 9 can achieve 360° rotation and stay at any position. In this way, the detection mechanism 4 can detect the seed crystal 9 in all directions without blind spots, reduce the risk of missed detection, and make the detection results more accurate.

[0091] Specifically, the rotating shaft 322 can clamp the end of the seed crystal 9 to constrain the seed crystal 9. During the rotation process, the risk of the seed crystal 9 jumping or falling can be avoided, and the accuracy of the detection results can be guaranteed; moreover, the rotating shaft 322 clamps the end of the seed crystal 9, so that the cylindrical surface of the seed crystal 9 is completely exposed and unobstructed, which can avoid the occurrence of detection blind spots and ensure the light source illumination effect and the accuracy of the detection results.

[0092] Specifically, the portion of the rotating shaft 322 that contacts the seed crystal 9 can be made of a flexible material, or the end of the rotating shaft 322 can be connected to a flexible member so that the rotating shaft 322 clamps the seed crystal 9 through the flexible member to prevent secondary damage to the seed crystal 9.

[0093] Specifically, the gripping mechanism 3 may further include a fourth driving member 33, which may be directly connected to the rotating shaft 322 to directly drive the rotating shaft 322 to rotate. The fourth driving member 33 may be a motor, a cylinder, or the like.

[0094] Alternatively, the fourth driving member 33 may be connected to the rotating shaft 322 via a transmission assembly 34, so as to drive the rotating shaft 322 to rotate via the transmission assembly 34. The transmission assembly 34 may include a first roller 341, a second roller 343, and a synchronous belt 342; the first roller 341 may be connected to the driving member, the second roller 343 may be connected to the rotating shaft 322, and the synchronous belt 342 may be connected to the first roller 341 and the second roller 343, respectively. In this way, the fourth driving member 33 drives the first roller 341 to rotate, the synchronous belt 342 drives the first roller 341 and the second roller 343 to rotate synchronously, and the second roller 343 drives the rotating shaft 322 to rotate.

[0095] Optionally, the seed crystal detection device also includes a support seat 5, and a third slide rail 112 extending along the first direction is provided on the machine 11; the support seat 5 is movably connected to the third slide rail 112 along the first direction, for supporting the seed crystal 9; the grasping mechanism 3 is arranged above the support seat 5; the third slide rail 112 includes a discharge end and a grasping end along the first direction, and when the support seat 5 slides to the discharge end, the seed crystal 9 can be placed on the support seat 5; when the support seat 5 slides to the grasping end, the grasping mechanism 3 is used to grasp the seed crystal 9 on the support seat 5.

[0096] In an embodiment of the present invention, the support seat 5 is slidably connected to the third slide rail 112, which facilitates placing the seed crystal 9 on the support seat 5, or controlling the grasping mechanism 3 to grasp the seed crystal 9 on the support seat 5, thereby improving the convenience of loading the seed crystal 9.

[0097] Specifically, the discharge end and the grabbing end of the support base 5 are spaced apart so that the discharge and grabbing operations of the seed crystal 9 are performed at different positions, so that the two operation steps do not interfere with each other.

[0098] Optionally, the support seat 5 has a V-shaped support surface 51 on a side away from the third slide rail 112 , and the V-shaped support surface 51 encloses a V-shaped accommodation space for placing the seed crystal 9 .

[0099] In the embodiment of the present invention, the V-shaped supporting surface 51 encloses a V-shaped accommodation space, so that the V-shaped accommodation space can accommodate seed crystals 9 of different diameters, thereby improving the versatility of the support seat 5 .

[0100] Optionally, the support seat 5 has a U-shaped support surface on one side away from the third slide rail 112 , and the U-shaped support surface encloses a U-shaped accommodation space for placing the seed crystal 9 to improve the stability of placing the seed crystal 9 .

[0101] Optionally, the seed crystal detection device further includes a safety detection component 6; the safety detection component 6 is mounted on the machine platform 11 and is arranged on both sides of the discharge end in the third direction, wherein the plane where the first direction and the second direction are located intersects with the third direction.

[0102] In the embodiment of the present invention, the safety detection component 6 can be used to detect whether a worker enters the discharge end, thereby improving the operational safety of the seed crystal detection device.

[0103] Specifically, the safety detection component 6 can be fixedly installed on the machine platform 11 .

[0104] Optionally, the safety detection component 6 includes gratings 61 arranged in pairs; the gratings 61 arranged in pairs are respectively arranged on two opposite sides of the discharge end in the third direction.

[0105] In the embodiment of the present invention, the light barriers 61 arranged in pairs are used to detect whether a staff member enters, and the implementation method is relatively simple and convenient.

[0106] Optionally, the safety detection component 6 may include a pair of photoelectric sensors to detect whether a seed crystal 9 is placed at the discharge end. The paired photoelectric sensors are respectively arranged on opposite sides of the discharge end in the third direction, one for transmitting and the other for receiving.

[0107] Alternatively, as Figure 5 As shown, the seed crystal detection device also includes a second light source 71 and a second camera 72; the second light source 71 is arranged between the second camera 72 and the third slide rail 112 along the first direction; the second light source 71 is provided with a through hole 711 opposite to the second camera 72, so that the second camera 72 can photograph the code on the seed crystal 9 through the through hole 711.

[0108] In the embodiment of the present invention, since the code on the seed crystal 9 can distinguish the uniqueness of the seed crystal 9, by photographing the code on the seed crystal 9, it is convenient to enter the seed crystal 9 code into the system and associate it with the test results, which facilitates information tracing and data management.

[0109] Specifically, the seed crystal 9 number is identified and recorded before the test, and the test result data is automatically associated with the seed crystal 9 number after the test is completed, which facilitates information tracing and data management and reduces the error rate.

[0110] Specifically, the second camera 72 may be a number recognition camera for identifying the number of the seed crystal 9. The second light source 71 may be an illumination light source for providing lighting conditions for the end face of the seed crystal 9 to ensure that the second camera 72 accurately identifies the number of the seed crystal 9.

[0111] Specifically, the second camera 72 and the second light source 71 are both fixedly connected to the machine 11. The second light source 71 can be arranged between the second camera 72 and the third slide rail 112. The second light source 71 can be provided with a through hole 711 for light transmission to ensure that the second camera 72 collects image information.

[0112] Optionally, the seed crystal detection device also includes a limit member 73; along the first direction, the limit member 73 is arranged between the second light source 71 and the third slide rail 112, and the limit member 73 is arranged corresponding to the support seat 5; the limit member 73 can move along the second direction and switch between the first position and the second position. In the first position, the height of the limit member 73 is lower than the height of the support seat 5; in the second position, the limit member 73 is opposite to the support seat 5 and is used to limit the seed crystal 9, wherein the second direction intersects with the first direction.

[0113] In the embodiment of the present invention, the position limiting member 73 is used to limit the seed crystal 9, thereby reducing the placement error of the seed crystal 9 at the grasping end and ensuring the grasping accuracy of the grasping mechanism 3. Moreover, because the position limiting member 73 has a lifting function, the position limiting member 73 can be lowered to avoid the position when the seed crystal 9 is being numbered and the grasping mechanism 3 is grasping the seed crystal 9.

[0114] Specifically, the second direction is the Z-axis direction, and the limiting member 73 moves up and down.

[0115] Optionally, the seed crystal detection device further includes a detection member 74 , which is disposed on the support seat 5 and is used to detect whether a seed crystal 9 is placed on the support seat 5 , thereby further improving the working reliability of the seed crystal detection device.

[0116] Specifically, the detection member 74 can be fixedly connected to the support base 5. The present invention does not impose any specific restrictions on the specific position of the detection member 74 on the support base 5, and the position can be adaptively adjusted according to actual needs.

[0117] Optionally, the seed crystal detection device also includes a protective cover 12, which is installed on the machine platform 11 and encloses the machine platform 11 to form a receiving space; the gripping mechanism 3, the driving mechanism 2 and the detection mechanism 4 are all arranged in the receiving space; the protective cover 12 has a transparent portion 121, so that the interior of the receiving space can be observed through the transparent portion 121.

[0118] In this embodiment of the present invention, the gripping mechanism 3, drive mechanism 2, and detection mechanism 4 are all located within the storage space, effectively protecting these structures. Furthermore, the protective cover 12 safely isolates the seed crystal detection device from the external environment, providing safety protection for personnel. The protective cover 12 includes a transparent portion 121, which facilitates personnel's inspection of the storage space.

[0119] Specifically, the discharge end of the third slide rail 112 can be disposed outside the accommodation space to facilitate loading the seed crystal 9 . The gripping end of the third slide rail 112 can be disposed inside the accommodation space to facilitate gripping of the seed crystal 9 by the gripping mechanism 3 .

[0120] Alternatively, as Figure 2 As shown, the machine 11 may also be provided with a start button 8 to control the seed crystal detection device to start detection work through the start button 8. The number of start buttons 8 can be one or two. Setting the number of start buttons 8 to two and simultaneously activating both start buttons 8 to activate the seed crystal detection device can reduce the risk of accidental touch and improve safety.

[0121] Specifically, if Figure 6 As shown, the working process of the seed crystal detection device includes the following steps:

[0122] Placing the seed crystal 9 on the support seat 5 and limiting the seed crystal 9 ; specifically, adjusting the support seat 5 to the discharge end of the third slide rail 112 , and placing the seed crystal 9 into the V-shaped space of the support seat 5 .

[0123] Check whether the seed crystal 9 is in place, if so, proceed to the next step, if not, return to the previous step;

[0124] Press the start button 8;

[0125] The support base 5 drives the seed crystal 9 to move to the clamping position; specifically, the support base 5 is adjusted to the gripping end of the third slide rail 112 so that the seed crystal 9 abuts against the limiting member 73 .

[0126] The limiting member 73 descends;

[0127] Photographing and identifying the seed crystal 9 number; specifically, starting the second camera 72 and the second light source 71 to photograph and identify the seed crystal 9 number;

[0128] The grabbing mechanism 3 descends;

[0129] Clamping the seed crystal 9 ; specifically comprising: adjusting the distance between the two rotating shafts 322 so that the two rotating shafts 322 respectively clamp the two ends of the seed crystal 9 .

[0130] The seed crystal 9 rises to the hidden crack detection station; specifically, the process includes: driving the third component 23 to rise, and the gripping mechanism 3 to rise synchronously, so as to drive the seed crystal 9 to move between the infrared light source 412 and the internal detection camera 422;

[0131] The seed crystal 9 rotates and detects hidden cracks. Specifically, the rotation shaft 322 drives the seed crystal 9 to rotate, and the infrared light source 412 and the internal detection camera 422 cooperate to detect internal defects of the seed crystal 9.

[0132] The seed crystal 9 moves laterally to the size detection station; specifically, the process includes: driving the second component 22 to move horizontally, and the gripping mechanism 3 to move laterally synchronously, so as to drive the seed crystal 9 to move between the size detection light source 411 and the size detection camera 421 .

[0133] The seed crystal 9 rotates and its size is detected. Specifically, the rotation shaft 322 drives the seed crystal 9 to rotate, and the size detection light source 411 and the size detection camera 421 cooperate to detect the size of the seed crystal 9.

[0134] The seed crystal 9 moves laterally to the micro-crack detection station; specifically, the process includes: driving the second component 22 to move horizontally, and the gripping mechanism 3 to move laterally synchronously to drive the seed crystal 9 back between the infrared light source 412 and the internal detection camera 422 .

[0135] The seed crystal 9 descends to the height of the support base 5 , which specifically includes: driving the third component 23 to descend, and the grasping mechanism 3 to descend synchronously.

[0136] The gripping mechanism 3 is released, and the seed crystal 9 is placed back on the support seat 5;

[0137] The limiting member 73 rises;

[0138] The support seat 5 returns from the grabbing end to the discharging end;

[0139] The test result is bound to the seed crystal number 9 and output to the display interface;

[0140] Seed crystal 9 is cut.

[0141] The seed crystal detection device described in the embodiment of the utility model has at least the following advantages:

[0142] In an embodiment of the present invention, the driving mechanism can drive the gripping mechanism to move. Since the gripping mechanism is used to grip the seed crystal, it is convenient to adjust the position of the seed crystal. Since the detection mechanism is installed on the machine, the position of the detection mechanism is fixed, and the detection mechanism is set corresponding to the target position. In this way, the gripping mechanism is driven to move by the driving mechanism to bring the seed crystal to the target position, and then the size and internal defects of the seed crystal are detected by the detection mechanism to ensure the quality of the seed crystal, thereby avoiding accidents caused by the poor quality of the seed crystal causing the crystal rod to fall, improving the production yield of the silicon rod, and reducing production safety risks. In the embodiment of the present invention, the quality of the seed crystal can be detected by the seed crystal detection device, which can reduce errors, shorten working hours, and improve detection accuracy and detection efficiency.

[0143] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0144] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0145] The above is a detailed introduction to a seed crystal detection device provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for general technical personnel in this field, based on the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A seed crystal detection device, characterized in that: include: A machine (11), a driving mechanism (2), a gripping mechanism (3) and a detecting mechanism (4); wherein, The driving mechanism (2) is mounted on the machine platform (11), the driving mechanism (2) is connected to the grabbing mechanism (3), the driving mechanism (2) is used to drive the grabbing mechanism (3) to move to a target position, and the grabbing mechanism (3) is used to grab the seed crystal (9) and adjust the position of the seed crystal (9); The detection mechanism (4) is installed on the machine platform (11), and the detection mechanism (4) is arranged corresponding to the target position. The detection mechanism (4) is used to detect the size and internal defects of the seed crystal (9).

2. The seed crystal detection device according to claim 1, characterized in that: The driving mechanism (2) comprises a first component (21), a second component (22) and a third component (23); The first component (21) is mounted on the machine (11) and is fixedly connected to the machine (11); The second component (22) is slidably connected to the first component (21) along a first direction; The third component (23) is connected to the gripping mechanism (3) and is slidably connected to the second component (22) along a second direction, and the second direction intersects with the first direction.

3. The seed crystal detection device according to claim 2, characterized in that: The first component (21) is provided with a first slide rail extending along the first direction, and the second component (22) is provided with a first slider, and the first slider is slidably connected to the first slide rail; And / or, the second component (22) is provided with a second slide rail extending along the second direction, and the third component (23) is provided with a second slider, and the second slider is slidably connected to the second slide rail.

4. The seed crystal detection device according to claim 1, characterized in that: The detection mechanism (4) includes two groups of first light sources (41) and first cameras (42), one group includes a size detection light source (411) and a size detection camera (421), and the other group includes an infrared light source (412) and an internal detection camera (422). The size detection light source (411) and the size detection camera (421) cooperate to detect the size of the seed crystal (9); The infrared light source (412) and the internal detection camera (422) cooperate to detect internal defects of the seed crystal (9).

5. The seed crystal detection device according to claim 2, characterized in that: The gripping mechanism (3) comprises a base (31) and two clamping components (32); The base (31) is connected to the driving mechanism (2); The two clamping parts (32) are connected to the same side of the base (31), and the two clamping parts (32) are used to clamp the two ends of the seed crystal (9).

6. The seed crystal detection device according to claim 5, characterized in that: The clamping component (32) includes a connecting piece (321) and a rotating shaft (322) for clamping the seed crystal (9); The connecting member (321) is connected to the base (31); The rotating shaft (322) passes through the connecting member (321) and is connected to the connecting member (321) by rotating around the first direction.

7. The seed crystal detection device according to claim 1, characterized in that: The seed crystal detection device further comprises a support seat (5); and the platform (11) is provided with a third slide rail (112) extending along the first direction; The support seat (5) is movably connected to the third slide rail (112) along a first direction and is used to support the seed crystal (9); The grabbing mechanism (3) is arranged above the supporting seat (5); The third slide rail (112) includes a discharge end and a grabbing end along the first direction. When the support seat (5) slides to the discharge end, the seed crystal (9) is placed on the support seat (5); when the support seat (5) slides to the grabbing end, the grabbing mechanism (3) is used to grab the seed crystal (9) on the support seat (5).

8. The seed crystal detection device according to claim 7, characterized in that: The support seat (5) has a V-shaped support surface (51) on one side away from the third slide rail (112), and the V-shaped support surface (51) encloses a V-shaped accommodation space for placing a seed crystal (9).

9. The seed crystal detection device according to claim 7, characterized in that: The seed crystal detection device further includes a second light source (71) and a second camera (72); The second light source (71) is arranged between the second camera (72) and the third slide rail (112) along the first direction; The second light source (71) is provided with a through hole (711) opposite to the second camera (72), so that the second camera (72) can photograph the code on the seed crystal (9) through the through hole (711).

10. The seed crystal detection device according to claim 9, characterized in that: The seed crystal detection device further includes a limiting member (73); Along the first direction, the limiting member (73) is arranged between the second light source (71) and the third slide rail (112), and the limiting member (73) is arranged corresponding to the support seat (5); The limiting member (73) is movable along a second direction and switches between a first position and a second position. In the first position, the height of the limiting member (73) is lower than the height of the support seat (5). In the second position, the limiting member (73) is opposite to the support seat (5) and is used to limit the seed crystal (9), wherein the second direction intersects with the first direction.

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