Sampling detection device

Abstract

The utility model discloses a sampling detection device, and relates to the technical field of industrial analysis sampling equipment, the sampling detection device comprises a mechanical arm, a grasping piece, a dipping test piece, a bearing piece, an image collector and a controller, the mechanical arm comprises a big arm and a small arm, and the small arm can rotate around one end of the big arm; the grabbing piece is arranged at the end, away from the large arm, of the small arm and comprises a gripper and a tail end driving piece, the gripper comprises at least two fingers, and the tail end driving piece is used for controlling the at least two fingers to be opened or closed; the dipping test piece comprises a holding part and a dipping test part, and the at least two fingers are used for grabbing the holding part; the bearing part is used for bearing liquid industrial silicon, and the dipping part can extend into the bearing part to dip the liquid industrial silicon; the image collector is mounted on the small arm and comprises a shooting head, and the shooting head is arranged towards the dipping test part; and the controller is electrically connected with the tail end driving piece and the image collector. According to the scheme, the personal safety of workers can be effectively guaranteed, and the qualified rate of industrial silicon products can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial analysis sampling equipment technical field, especially relate to a sampling detection device. BACKGROUND

[0002] In the process of industrial silicon smelting, after the silicon liquid (containing impurities) is discharged, a refining process is usually needed, and in the refining process, the impurities in the silicon liquid are reduced by injecting a mixed gas of oxygen and air into the silicon liquid, in this process, workers usually hold a steel drill to dip the silicon liquid, and observe the calcium spot coverage area on the surface of the steel drill to determine whether the silicon liquid is refined. In actual operation, since only naked eye observation is used, it is difficult to accurately control the end point of the silicon liquid refining, which affects the qualified rate of the silicon liquid product, and at the same time, the temperature of the silicon liquid is high, and the workers may cause safety accidents due to negligence or improper operation when dipping the silicon liquid.

[0003] Therefore, it is necessary to provide a sampling detection device to solve or at least alleviate the above technical problems. SUMMARY

[0004] The main purpose of the utility model is to provide a sampling detection device, which aims to solve the technical problems of difficult to ensure worker safety and difficult to grasp the qualified rate of the product in the process of industrial silicon refining.

[0005] To achieve the above purpose, the utility model provides a sampling detection device for sampling and detection in the process of industrial silicon refining, comprising:

[0006] A mechanical arm, the mechanical arm includes a large arm and a small arm, and the small arm can rotate around one end of the large arm;

[0007] A gripping piece, the gripping piece is arranged at one end of the small arm away from the large arm, the gripping piece includes a gripper and an end driving piece, the gripper includes at least two fingers, and the end driving piece is used to control the at least two fingers to open or close;

[0008] A dipping test piece, the dipping test piece includes a holding part and a dipping part connected with each other, the at least two fingers are used to grab the holding part, and the dipping part is used to dip the silicon liquid;

[0009] An image collector, the image collector is installed on the small arm, and the image collector includes a shooting head, and the shooting head is used to acquire image information of the dipping part;

[0010] A controller, the controller is electrically connected with the end driving piece and the image collector, the image collector transmits the image information to the controller, the controller can process the image information and calculate the calcium spot coverage area on the surface of the dipping part.

[0011] In an embodiment, the sampling detection device further comprises a base and a large arm transmission assembly, the large arm transmission assembly is fixedly installed on the top surface of the base, and the large arm is rotatably installed on the large arm transmission assembly at the end away from the small arm.

[0012] In an embodiment, the base comprises a box seat, a rotating plate and a bottom driving element, the rotating plate is rotatably installed on the top end of the box seat, the bottom driving element is used to drive the rotating plate to rotate, the large arm transmission assembly is installed on the side of the rotating plate away from the box seat, and the bottom driving element is electrically connected with the controller.

[0013] In an embodiment, the box seat comprises a bottom box body and a worm gear and a worm installed in the bottom box body, the worm gear is engaged with the worm, one end of the worm is connected with the output shaft of the bottom driving element, and the top of the worm gear is connected with the rotating plate.

[0014] In an embodiment, the box seat further comprises a fixing part, the fixing part is installed on the outer periphery of the bottom box body, the fixing part is provided with a mounting hole, and the fixing part is used to be fixedly connected with the ground through the mounting hole.

[0015] In an embodiment, the large arm transmission assembly comprises a large arm driving element, a large arm gear box and a driving gear and a driven gear installed in the large arm gear box, the driving gear is engaged with the driven gear, the driving gear is connected with the output shaft of the large arm driving element, the driven gear is connected with the end of the large arm away from the small arm, and the controller is electrically connected with the large arm driving element.

[0016] In an embodiment, the sampling detection device further comprises a small arm transmission assembly, the end of the large arm close to the small arm is connected with the small arm transmission assembly, and the small arm is rotatably installed on the small arm transmission assembly.

[0017] In an embodiment, the small arm transmission assembly comprises a small arm driving element, a small arm gear box and a first gear and a second gear installed in the small arm gear box, the first gear and the second gear are engaged, the first gear is connected with the output shaft of the small arm driving element, the second gear is connected with the end of the small arm away from the gripping element, the end of the large arm close to the small arm is installed on the outer side of the small arm gear box, and the controller is electrically connected with the small arm driving element.

[0018] In an embodiment, the small arm comprises a connecting frame and an extension plate, the connecting frame can rotate around one end of the large arm, the extension plate is installed on the end of the connecting frame away from the large arm, and the gripping element is installed on the extension plate.

[0019] In an embodiment, the large arm is internally provided with a first cavity, and the small arm is internally provided with a second cavity, and the first cavity and the second cavity are used for accommodating a cable connected with the controller.

[0020] In the technical scheme, the sampling and detecting device is used for sampling and detecting in the industrial silicon refining process, and comprises a mechanical arm, a gripping piece, a dipping test piece, an image collector and a controller. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0022] Figure 1 Part structure schematic diagram of the sampling and detecting device provided by the present application;

[0023] Figure 2 Another part structure schematic diagram of the sampling and detecting device provided by the present application;

[0024] Figure 3 Part structure schematic diagram of the sampling and detecting device provided by the present application; Figure 1 Part structure schematic diagram of the sampling and detecting device provided by the present application;

[0025] Figure 4 For Figure 1 The cross-sectional structure schematic view of another part structure in the middle;

[0026] Figure 5 For Figure 3 The cross-sectional structure schematic view of A-A section in the middle;

[0027] Figure 6 The working flow chart of the sampling detection device one embodiment provided by the utility model.

[0028] Explanation of reference numerals:

[0029] 1, mechanical arm;11, large arm;12, small arm;121, connecting frame;122, extension plate;

[0030] 2, gripping piece;21, gripper;211, finger;22, end driving piece;

[0031] 3, dip test piece;

[0032] 4, bearing piece;

[0033] 5, base;51, box seat;511, bottom box body;512, worm wheel;513, worm;514, fixed part;52, rotating plate;53, bottom driving piece;

[0034] 6, large arm transmission assembly;61, large arm driving piece;62, large arm gear box;63, driving gear;64, driven gear;

[0035] 7, small arm transmission assembly;71, small arm driving piece;72, small arm gear box;73, first gear.

[0036] The realization, functional characteristics and advantages of the utility model will be further described with reference to the drawings. Specific implementation

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0038] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, if the certain posture changes, the directional indications also change accordingly.

[0039] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B", including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the utility model.

[0040] The smelting of industrial silicon occupies a pivotal position in the global industrial system. Industrial silicon is a key raw material for the photovoltaic industry. With the growing demand for renewable energy worldwide, the photovoltaic industry is developing rapidly, and the demand for industrial silicon is also increasing. According to data in 2023, China's polysilicon production reached 1.5 million tons, and domestic production is expected to increase to 2 million tons in 2024, an increase of 33% year-on-year, which directly drives the demand for upstream raw materials, industrial silicon. With the rapid development of the industrial silicon smelting industry, the market has put forward higher requirements for the smelting quality of industrial silicon.

[0041] In the smelting process of industrial silicon, it usually includes a heating reduction process and a refining process. The heating reduction process reduces the silicon raw material to silicon liquid. In the high-temperature and high-pressure reduction environment, impurity elements in the raw material will also be reduced at the same time. These impurities will reduce the purity of industrial silicon and reduce its value. In order to effectively control the impurity content in industrial silicon, in addition to the need to strictly monitor the impurity content in the raw material, a refining process is also needed. This is because even if relatively pure raw materials are used to produce industrial silicon, due to factors such as equipment conditions and process operation, the impurity element content in the product sometimes still cannot fully meet the actual needs of users.

[0042] Generally, the refining process is achieved by passing a mixture of oxygen and air into the silicon liquid to refine the silicon liquid. According to the applicant's research, in this process, the following methods can usually be used to determine whether the refining is complete:

[0043] I. Observe the situation of the fire sparks rolled out of the package. If the silicon liquid in the package splashes red sparks and does not fall to the ground, it indicates that the refining is successful.

[0044] II. Observe the situation of the silicon liquid in the package. If a large amount of bean flower-like aggregation is gathered at the package edge when the silicon liquid rolls, and the silicon liquid is viscous, it indicates that the refining is successful.

[0045] III. Iron stick dipping test, using an iron stick to quickly insert into the silicon liquid, after pulling out, the surface of the iron stick is smooth and the calcium spot coverage reaches more than 75%, indicating that the refining is successful.

[0046] In the above-mentioned methods, workers need to approach the silicon package for observation or sampling every time. These workers must operate in a high-temperature environment, and if the operation is not careful, there will be a high risk of injury. Method I and method II have no clear evaluation criteria, and can only be judged by the experience of the operator, and the difference in observation of workers may directly affect the quality of the silicon liquid refining. In contrast, the observation of the sample by method III is more clear, but the observation by method III also depends largely on the proficiency of the worker, and it is difficult to ensure whether the refining process achieves the expected purpose, thereby it is difficult to ensure the qualified rate of the product, and at the same time, the worker needs to operate near the silicon liquid when observing by method III, and it is difficult to protect the personal safety of the worker.

[0047] In view of the above problems, the utility model provides a sampling detection device to solve the above technical problems.

[0048] Please refer to Figure 1 In an embodiment of the utility model, the sampling detection device is used for sampling and detection in the industrial silicon refining process, which comprises a mechanical arm 1, a gripping piece 2, a dipping test piece 3, an image collector and a controller, wherein the mechanical arm 1 comprises a large arm 11 and a small arm 12, and the small arm 12 can rotate around one end of the large arm 11;The gripping piece 2 is arranged at the end of the small arm 12 away from the large arm 11, and the gripping piece 2 comprises a gripper 21 and an end driving piece 22, the gripper 21 comprises at least two fingers 211, and the end driving piece 22 is used to control the opening or closing of the at least two fingers 211;The dipping test piece 3 comprises a holding part and a dipping part connected with each other, the at least two fingers 211 are used to grab the holding part, and the dipping part is used to dip the silicon liquid;The image collector is installed on the small arm 12, and the image collector comprises a shooting head, which is used to obtain the image information of the dipping part;The controller is electrically connected with the end driving piece 22 and the image collector, the image collector transmits the image information to the controller, and the controller can process the image information and calculate the calcium spot coverage area on the surface of the dipping part.

[0049] Specifically, taking industrial silicon as an example, in the production process of industrial silicon, high-temperature reduction reaction occurs between silica (SiO2) and carbonaceous reducing agent in the electric arc furnace, and the generated silicon is in a liquid state, which is called silicon liquid. After the generation of the silicon liquid, the silicon liquid flows into the bearing member 4 (silicon liquid bag) through the outlet of the electric furnace, and the bearing member 4 after receiving the silicon liquid is transported to the area where the refining process is located and placed close to the mechanical arm 1. After the mixed gas of oxygen and air is introduced into the silicon liquid in the bearing member 4, the refining process of industrial silicon begins. After the refining process is performed for ten minutes, the controller opens the mechanical arm 1, the gripping member 2 and the image collector, which includes a camera in this embodiment. Please refer to Figure 6 The movement process of the mechanical arm 1 in this embodiment is introduced by taking the process of grabbing the dip test piece 3 as an example. After the mechanical arm 1 is initialized, the camera obtains the image of the surrounding environment, and the controller judges whether the image information of the dip test piece 3 is obtained. If the image information of the dip test piece 3 is successfully obtained, the next step is entered. If the target information is not obtained, the image acquisition is re-performed. After the image information of the dip test piece 3 is obtained, the Camshift algorithm is used to process the image to obtain the position information of the dip test piece 3. Then the controller selects the action of the mechanical arm 1, and establishes the D-H model (Denavit-Hartenberg parameters) of the mechanical arm 1 and the dip test piece 3. Then the controller sends the motion control parameters to the mechanical arm 1. The large arm 11 and the small arm 12 in the mechanical arm 1 move to the vicinity of the dip test piece 3 according to the instruction, and the end driver of the gripping part is controlled to work by the controller. The fingers 211 are driven by the end driver to grab the holding part of the dip test piece 3, and finally the dip test piece 3 is picked up. After the dip test piece 3 is picked up, the steps in Figure 6 are repeated. The dip test part of the dip test piece 3 is inserted into the silicon liquid in the bearing member 4 and taken out after dipping the sample. The image information of the surface of the dip test part is obtained by the camera and sent to the controller to calculate the coverage of the calcium spot to determine whether the refining process of the silicon liquid is completed. When the calcium spot on the surface of the dip test part covers more than 75% of the dip test surface, it is considered that the refining process of the silicon liquid has been completed. When the coverage area of the calcium spot is less than 75% of the dip test surface, after 5 to 10 minutes, the above steps are repeated, and the coverage area of the calcium spot is recalculated until the coverage area of the calcium spot meets the requirements. When the coverage area of the calcium spot meets the requirements, the controller sends a signal to the worker to end the refining process in time.

[0050] In the technical scheme provided by the utility model, the sampling detection device is used for sampling and detection in the refining process of industrial silicon, and comprises a mechanical arm 1, a gripping piece 2, a dipping test piece 3, an image collector and a controller, wherein the mechanical arm 1 comprises a large arm 11 and a small arm 12, the small arm 12 can rotate around one end of the large arm 11; the gripping piece 2 is arranged at one end of the small arm 12 away from the large arm 11, the gripping piece 2 comprises a gripper 21 and an end driving piece 22, the gripper 21 comprises at least two fingers 211, and the end driving piece 22 is used for controlling the at least two fingers 211 to open or close; the dipping test piece 3 comprises a holding part and a dipping part which are connected with each other, the at least two fingers 211 are used for grabbing the holding part, and the dipping part is used for dipping silicon liquid; the image collector is installed on the small arm 12, the image collector comprises a shooting head, and the shooting head is used for acquiring image information of the dipping part; the controller is electrically connected with the end driving piece 22 and the image collector, the image collector transmits the image information to the controller, and the controller can process the image information and calculate the coverage area of calcium spots on the surface of the dipping part. By using the sampling detection device provided by the utility model for sampling and detection in the refining process of industrial silicon, the mechanical arm 1 can hold the dipping test piece 3 through the gripping piece 2 and insert the dipping part into the silicon liquid in the bearing piece 4, after the silicon liquid is dipped on the surface of the dipping part, the mechanical arm 1 drives the dipping test piece 3 to be pulled out from the bearing piece 4 and the image of the surface of the dipping part is acquired through the image collector and then transmitted to the controller to calculate the coverage rate of calcium spots, so that the progress of the refining of industrial silicon can be known. Through the arrangement, the progress of the refining of industrial silicon can be known without manual operation, the detection process is safe, fast and accurate, and thus the personal safety of workers and the qualified rate of industrial silicon products can be effectively ensured.

[0051] Further, in an embodiment of the utility model, the sampling detection device further comprises a base 5 and a large arm transmission assembly 6, the large arm transmission assembly 6 is fixedly installed on the top surface of the base 5, and one end of the large arm 11 away from the small arm 12 is rotatably installed on the large arm transmission assembly 6. Please refer to Figure 1 With Figure 3 The base 5 is fixed to the ground, and the large arm transmission assembly 6 is fixedly installed on the top surface of the base 5, so that the large arm 11 can rotate around the connection between the large arm and the large arm transmission assembly 6, and the small arm 12 can rotate around one end of the large arm 11. This arrangement increases the degree of freedom of the mechanical arm 1, so that it can perform more complex actions to adapt to different working environments.

[0052] Further, please refer to Figure 1 With Figure 4In an embodiment of the utility model, base 5 includes box seat 51, rotating plate 52 and bottom drive part 53, rotating plate 52 is rotatably installed at the top of box seat 51, and bottom drive part 53 is used to drive rotating plate 52 to rotate, and large arm transmission assembly 6 is installed at the side of rotating plate 52 away from box seat 51, and bottom drive part 53 is electrically connected with the controller. Through the setting, large arm transmission assembly 6 can rotate along with rotating plate 52, so that mechanical arm 1 can rotate, and mechanical arm 1 can reach the working point at different positions, further increase the degree of freedom of mechanical arm 1, so that it can realize multiple movement modes such as pitching, rotating and swinging, and can perform multiple more complex action combinations.

[0053] In addition, in an embodiment of the utility model, box seat 51 includes bottom box body 511 and worm wheel 512 and worm 513 arranged in bottom box body 511, worm wheel 512 is engaged with worm 513, one end of worm 513 is connected with the output shaft of bottom drive part 53, and the top of worm wheel 512 is connected with rotating plate 52. For details, please refer to Figure 5 The bottom box body 511 in box seat 51 is used to accommodate worm wheel 512 and worm 513, and in the embodiment, bottom drive part 53 is arranged outside bottom box body 511 to facilitate maintenance. Worm 513 is coaxially connected with the output shaft of bottom drive part 53, the central axis of worm wheel 512 is arranged perpendicularly to the central axes of worm 513 and the output shaft of bottom drive part 53, and at the same time, the central axis of worm wheel 512 is arranged perpendicularly to rotating plate 52. Through the setting, the output shaft can drive worm 513 to rotate when rotating, worm 513 is engaged with worm wheel 512, at this time, worm 513 can drive worm wheel 512 to rotate in the plane direction, and further drive rotating plate 52 to rotate, so that the whole mechanical arm 1 can rotate. In the embodiment, bottom drive part 53 includes one of a rotary motor and a rotary cylinder.

[0054] Please refer to Figure 1 In an embodiment of the utility model, box seat 51 further includes fixing part 514, fixing part 514 is installed at the outer periphery of bottom box body 511, fixing part 514 is provided with mounting holes, and fixing part 514 is fixedly connected with the ground through the mounting holes. By fixing fixing part 514 to the ground, base 5 can be stably placed on the ground, so that the motion accuracy of mechanical arm 1 is higher, and the motion trajectory of mechanical arm 1 is difficult to control due to shaking is avoided. At the same time, through the setting, the risk of overturning of the whole mechanical arm 1 and base 5 is reduced.

[0055] In an embodiment of the utility model, big arm transmission subassembly 6 includes big arm drive piece 61, big arm gear box 62 and setting in big arm gear box 62 driving gear 63 and driven gear 64, driving gear 63 is engaged with driven gear 64, driving gear 63 is connected with the output shaft of big arm drive piece 61, driven gear 64 is connected with the one end of big arm 11 away from small arm 12, controller is electrically connected with big arm drive piece 61. Specifically please refer to Figure 3 Big arm transmission subassembly 6 is used to control the rotation of big arm 11, wherein, big arm gear box 62 is used to accommodate driving gear 63 and driven gear 64, in this embodiment, big arm drive piece 61 is set on the outside of big arm gear box 62, to facilitate maintenance. Driving gear 63 and driven gear 64 are engaged, the central axis of driving gear 63 coincides with the central axis of the output shaft of big arm drive piece 61, by connecting the output shaft of big arm drive piece 61 with driving gear 63, driving gear 63 can rotate under the action of big arm drive piece 61, thereby driving driven gear 64 to rotate, and one side of driven gear 64 is connected with one end of big arm 11, so that driven gear 64 can drive big arm 11 to rotate in the vertical direction. By electrically connecting the controller with big arm drive piece 61, the controller can control the rotation of the output shaft of big arm drive piece 61, and further control the rotation amplitude of big arm 11. In this embodiment, big arm drive piece 61 includes one of rotary motor and rotary cylinder. This setting structure is simple, easy to maintain, and big arm gear box 62 can protect driving gear 63 and driven gear 64, which is beneficial to improve the service life of big arm transmission subassembly 6.

[0056] In an embodiment of the utility model, sampling detection device further includes small arm transmission subassembly 7, and one end of big arm 11 close to small arm 12 is connected with small arm transmission subassembly 7, and small arm 12 is rotatably installed on small arm transmission subassembly 7. Specifically please refer to Figure 4 By setting small arm transmission subassembly 7 between big arm 11 and small arm 12, small arm 12 can rotate around one end of big arm 11, and at the same time, it is convenient to replace and maintain small arm 12. Further, please refer to Figure 4In an embodiment of the utility model, small arm transmission assembly 7 includes small arm drive piece 71, small arm gear box 72 and first gear 73 and second gear (not shown in drawing) set in small arm gear box 72, first gear 73 and second gear mesh, first gear 73 is connected with the output shaft of small arm drive piece 71, second gear is connected with the end of small arm 12 away from gripper 2, the end of large arm 11 close to small arm 12 is installed on the outside of small arm gear box 72, and controller is electrically connected with small arm driver.Small arm transmission assembly 7 is used to control the rotation of small arm 12, wherein small arm gear box 72 is used to accommodate first gear 73 and second gear, in the embodiment, small arm drive piece 71 is set on the outside of small arm gear box 72 to facilitate maintenance.First gear 73 and second gear mesh, the central axis of first gear 73 coincides with the central axis of the output shaft of small arm drive piece 71, by connecting the output shaft of small arm drive piece 71 with first gear 73, first gear 73 can rotate under the action of small arm drive piece 71, to drive second gear to rotate, and one side of second gear is connected with one end of small arm 12, so that second gear can drive small arm 12 to rotate in the vertical direction.Large arm 11 is fixedly connected between the small arm gear box 72, to facilitate the control of the movement track of small arm 12, and reduce the design difficulty.By electrically connecting controller with small arm drive piece 71, controller can control the rotation of small arm drive piece 71, and then control the rotation amplitude of small arm 12.In the embodiment, small arm drive piece 71 includes one of rotary motor and rotary cylinder.

[0057] In an embodiment of the utility model, small arm 12 includes connecting frame 121 and extension plate 122, connecting frame 121 can rotate around one end of large arm 11, extension plate 122 is installed on the end of connecting frame 121 away from large arm 11, and gripper 2 is installed on extension plate 122. Figure 1 Connecting frame 121 in small arm 12 is H-shaped frame, by adopting H-shaped frame and the both sides of second gear, the both sides of small arm 12 are more balanced, the precision when small arm 12 moves is improved, extension plate 122 is installed on the end of H-shaped frame away from large arm 11, and extension plate 122 is bolted between H-shaped frame, by adding extension plate 122, gripper 2, image collector and the like can be integrated on small arm 12 and move synchronously with small arm 12, and the expansibility of small arm 12 is improved by the arrangement.

[0058] In the embodiment of the utility model, first cavity is set up in the inside of big arm 11, second cavity is set up in the inside of small arm 12, and first cavity and second cavity are used for accommodating the cable connected with the controller. Specifically, first cavity is set up in the inside of big arm 11, and through hole is drilled in big arm 11 and communicated with first cavity, so that the cable in mechanical arm 1 can enter first cavity to protect the cable, and at the same time, the mass of big arm 11 can be reduced, and the material cost can be reduced. Second cavity is set up in the H-shaped frame of small arm 12, and through hole is drilled in the H-shaped frame and communicated with second cavity, so that the cable in mechanical arm 1 can enter second cavity to protect the cable, and at the same time, the mass of small arm 12 can be reduced, the shaking of H-shaped frame when rotating can be reduced, and the precision of the movement of small arm 12 can be improved.

[0059] The above-mentioned is only the exemplary implementation of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made by using the utility model specification and the attached drawings under the technical concept of the utility model or directly / indirectly applied in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A sampling and detection device for sampling and detection in an industrial silicon refining process, characterized in that The sampling detection device comprises a base, a large arm, a small arm, a gripping member, a dip test piece, an image collector and a controller. The large arm comprises a large arm body and a small arm body, the small arm body is rotatable around one end of the large arm body; The gripping member is arranged at one end of the small arm body away from the large arm body, the gripping member comprises a gripper and an end driving member, the gripper comprises at least two fingers, and the end driving member is used for controlling the at least two fingers to open or close; The dip test piece comprises a holding part and a dip test part connected with each other, the at least two fingers are used for grabbing the holding part, and the dip test part is used for dipping silicon liquid; The image collector is installed on the small arm body, and the image collector comprises a shooting head used for acquiring image information of the dip test part; The controller is electrically connected with the end driving member and the image collector, the image collector transmits the image information to the controller, the controller can receive the image information and acquire a calcium spot coverage area of a surface of the dip test part from the image information.

2. The sampling detection device of claim 1, wherein, The sampling detection device further comprises a base and a large arm transmission assembly, the large arm transmission assembly is fixedly installed on a top surface of the base, and one end of the large arm away from the small arm is rotatably installed on the large arm transmission assembly.

3. The sampling detection device of claim 2, wherein, The base comprises a box seat, a rotating plate and a bottom driving member, the rotating plate is rotatably installed on a top end of the box seat, the bottom driving member is used for driving the rotating plate to rotate, the large arm transmission assembly is installed on a side of the rotating plate away from the box seat, and the bottom driving member is electrically connected with the controller.

4. The sampling detection device of claim 3, wherein, The box seat comprises a bottom box body, a worm gear and a worm installed in the bottom box body, the worm gear is engaged with the worm, one end of the worm is connected with an output shaft of the bottom driving member, and a top of the worm gear is connected with the rotating plate.

5. The sampling detection device of claim 4, wherein, The box seat further comprises a fixing part installed on an outer periphery of the bottom box body, the fixing part is provided with a mounting hole, and the fixing part is used for being fixedly connected with the ground through the mounting hole.

6. The sampling detection device of claim 2, wherein, The large arm transmission assembly comprises a large arm driving member, a large arm gear box and a driving gear and a driven gear installed in the large arm gear box, the driving gear is engaged with the driven gear, the driving gear is connected with an output shaft of the large arm driving member, the driven gear is connected with one end of the large arm away from the small arm, and the controller is electrically connected with the large arm driving member.

7. The sampling detection device of any one of claims 1 to 6, wherein, The sampling detection device further comprises a small arm transmission assembly, one end of the large arm close to the small arm is connected with the small arm transmission assembly, and the small arm is rotatably installed on the small arm transmission assembly.

8. The sampling detection device of claim 7, wherein, The small arm transmission assembly comprises a small arm driving member, a small arm gear box and a first gear and a second gear installed in the small arm gear box, the first gear and the second gear are engaged, the first gear is connected with an output shaft of the small arm driving member, the second gear is connected with one end of the small arm away from the gripping member, one end of the large arm close to the small arm is installed on an outer side of the small arm gear box, and the controller is electrically connected with the small arm driving member.

9. The sampling detection device of any one of claims 1 to 6, wherein, The small arm comprises a connecting frame and an extension plate, the connecting frame is capable of rotating around one end of the large arm, the extension plate is installed on the connecting frame away from one end of the large arm, and the gripping member is installed on the extension plate.

10. The sampling detection device of any one of claims 1 to 6, wherein, The large arm is internally provided with a first cavity, and the small arm is internally provided with a second cavity, and the first cavity and the second cavity are used for accommodating a cable connected with the controller.

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