Detection device

Abstract

The utility model provides detection equipment. The detection equipment comprises a rack; the conveying device is arranged on the rack and is used for conveying the to-be-detected piece; the size measuring device is arranged on the rack and is used for measuring the size of the to-be-detected piece; the appearance detection device is arranged on the rack and is used for detecting the appearance of the to-be-detected piece; the rotating device is arranged on the rack, and at least part of the rotating device is rotatably arranged so as to drive the to-be-detected piece to rotate; and the control device is connected with the size measuring device, the appearance detecting device and the rotating device so as to control at least part of the rotating device to rotate according to the detection result of the size measuring device and the detection data of the appearance detecting device. According to the utility model, the problem of low detection accuracy of the silicon single crystal rod in the prior art is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of silicon rod testing technology, and more specifically, to a testing device. Background Technology

[0002] Currently, with the increasingly widespread application of the solar photovoltaic industry, monocrystalline silicon rods are used as the basic raw material for preparing solar crystalline silicon cells. In order to ensure that the quality of monocrystalline silicon rods meets the manufacturing requirements, it is necessary to inspect the size and appearance of the cut monocrystalline silicon rods during the production process.

[0003] In existing technologies, the dimensions of monocrystalline silicon rods are typically measured manually, and their appearance is inspected visually.

[0004] However, manual measurement is prone to significant errors due to dim lighting or the limitations of human measurement skills, resulting in low accuracy in detecting single-crystal silicon rods. Utility Model Content

[0005] The main objective of this invention is to provide a testing device to solve the problem of low accuracy in the testing of single-crystal silicon rods in the prior art.

[0006] To achieve the above objectives, this utility model provides a testing device, comprising: a frame; a conveying device disposed on the frame for conveying the workpiece to be tested; a dimensional measuring device disposed on the frame for measuring the dimensions of the workpiece to be tested; a visual inspection device disposed on the frame for inspecting the appearance of the workpiece to be tested; a rotating device disposed on the frame, at least a portion of which is rotatably mounted to drive the workpiece to be tested to rotate; and a control device connected to the dimensional measuring device, the visual inspection device, and the rotating device to control the rotation of at least a portion of the rotating device based on the detection results of the dimensional measuring device and the detection data of the visual inspection device.

[0007] Furthermore, the testing equipment also includes an adjustment device, which includes: a carrier component for carrying the workpiece to be tested; a first drive component disposed on the frame, the first drive component being drivenly connected to the carrier component to drive the carrier component to move toward or away from the frame; and at least two opposing clamping components, the at least two clamping components surrounding each other to form a clamping space, the clamping space being adjustablely configured to clamp the workpiece to be tested.

[0008] Furthermore, the adjustment device also includes a base plate and at least two mounting plates. The base plate is mounted on the frame, and the at least two mounting plates are mounted opposite each other on the base plate, forming an installation space between the at least two mounting plates. The load-bearing component includes: a load-bearing structure for carrying the workpiece to be tested; at least two connecting structures, one end of which is connected to the load-bearing structure, and the other end of which is slidably mounted on the mounting plate; and a receiving structure mounted on the load-bearing structure and located within the installation space. A first driving component is drivenly connected to the receiving structure to drive the receiving structure to move toward or away from the frame.

[0009] Further, the first driving assembly includes a first driving structure and a transmission structure. At least a portion of the first driving structure passes through at least one mounting plate and is located within the mounting space. The transmission structure is slidably mounted on the base plate and is located within the mounting space. The clamping assembly includes a clamping structure, which is slidably mounted on the base plate. The transmission structure has a first mating recess and a second mating recess. The receiving structure has a first mating protrusion extending into the first mating recess. During the sliding process of the first driving structure driving the transmission structure, the first mating protrusion moves along the extending direction of the first mating recess to drive the receiving structure to move. The clamping structure has a second mating protrusion extending into the second mating recess. During the sliding process of the first driving structure driving the transmission structure, the second mating protrusion moves along the extending direction of the second mating recess to drive at least two clamping structures to move towards or away from each other.

[0010] Furthermore, the adjusting device also includes: a first sliding assembly, comprising a first slide rail structure and a first slider structure, the first slide rail structure and the first slider structure being slidably engaged, the first slide rail structure being disposed on the base plate and extending along a first direction, and the first slider structure being connected to the transmission structure; a second sliding assembly, comprising a second slide rail structure and a second slider structure, the second slide rail structure and the second slider structure being slidably engaged, the second slide rail structure being disposed on the mounting plate and extending along a second direction, and the second slider structure being connected to the connecting structure; and a third sliding assembly, comprising a third slide rail structure and a third slider structure, the third slide rail structure and the third slider structure being slidably engaged, the third slide rail structure being disposed on the base plate and extending along a third direction, and the third slider structure being connected to the clamping structure; wherein, the first direction is parallel to the conveying direction of the conveying device, the second direction is perpendicular to the base plate, and the third direction is perpendicular to both the first and second directions.

[0011] Furthermore, the dimensional measuring device includes: a fourth sliding assembly comprising a fourth slide rail structure and a fourth slider structure, the fourth slide rail structure and the fourth slider structure being slidably engaged, the fourth slide rail structure being disposed on the base plate and located on one side of the adjusting device, the fourth slide rail structure extending along a second direction; a fifth sliding assembly comprising a fifth slide rail structure and a fifth slider structure, the fifth slide rail structure and the fifth slider structure being slidably engaged, the fifth slide rail structure being disposed on the fourth slider structure and extending along a first direction; and at least two dimensional measuring components, at least one dimensional measuring component being disposed on the fifth slide rail structure and at least another dimensional measuring component being disposed on the fifth slider structure, for measuring the dimensions of the workpiece to be inspected.

[0012] Further, the appearance inspection device includes: a support assembly mounted on a frame; a clamping assembly including at least two clamping structures, with a clamping space formed between the at least two clamping structures, the size of which is adjustable for clamping the workpiece to be inspected; wherein at least some of the clamping structures are rotatably mounted to drive the workpiece to be inspected to rotate; a second drive assembly mounted on the support assembly, the second drive assembly being drivenly connected to the clamping assembly to drive the clamping assembly to move toward or away from the frame; at least two oppositely arranged end face detection assemblies mounted on the frame for detecting the two end faces of the workpiece to be inspected; at least two oppositely arranged sixth sliding assemblies, each sixth sliding assembly including a sixth slide rail structure and a sixth slider structure, the sixth slide rail structure and the sixth slider structure being slidably engaged, the sixth slide rail structure being mounted on the support assembly and extending along a first direction; and at least two side detection assemblies corresponding one-to-one with the at least two sixth sliding assemblies, the side detection assemblies being mounted on the sixth slider structure for detecting the sides of the workpiece to be inspected.

[0013] Furthermore, the second drive assembly includes a second drive structure and a lifting structure. The second drive structure drives the lifting structure to move toward or away from the frame via a screw and nut mechanism. The clamping assembly includes: a coupling structure disposed on the lifting structure; a sliding structure including a slide rail portion and a slider portion, the slide rail portion and the slider portion being slidably engaged, the slide rail portion being disposed on the coupling structure and extending along the extension direction of the coupling structure; at least one clamping structure disposed on the coupling structure, the clamping structure having a main rotating portion, the main rotating portion being rotatably disposed; at least another clamping structure disposed on the slider portion, the clamping structure having a secondary rotating portion, the secondary rotating portion being rotatably disposed; and a third drive structure disposed on the coupling structure and drivenly connected to the main rotating portion to drive the main rotating portion to rotate the workpiece to be tested.

[0014] Furthermore, the rotating device includes: a driving gear movably mounted on the frame; a driven gear meshing with the driving gear; a carrying assembly mounted on the driven gear, the carrying assembly being used to carry the workpiece to be tested; a third driving assembly mounted on the side of the frame away from the workpiece to be tested, the third driving assembly being drivenly connected to the driving gear to drive the driving gear to rotate; and at least two opposing limiting assemblies mounted on the frame, the at least two limiting assemblies being located on one side of the carrying assembly to limit and stop at least a portion of the carrying assembly.

[0015] Furthermore, the testing equipment also includes a centering device. The conveying device and the towing assembly are both equipped with a centering device. The centering device includes: at least two opposing centering components, with a centering space formed between the at least two centering components. The size of the centering space is adjustable for clamping the workpiece to be tested; a fourth driving component, which is drivenly connected to each centering component to drive the at least two centering components to move toward or away from each other; and a rolling component, which is rotatably disposed on the centering components, with at least a portion of the outer peripheral surface of the rolling component in contact with the outer surface of the workpiece to be tested.

[0016] By applying the technical solution of this utility model, the conveying device of the testing equipment is set on the frame for conveying the part to be tested. The dimensional measuring device is set on the frame for measuring the dimensions of the part to be tested. The appearance inspection device is set on the frame for inspecting the appearance of the part to be tested. The rotating device is set on the frame, and at least part of the rotating device is rotatably configured to drive the part to be tested to rotate. The control device is connected to the dimensional measuring device, the appearance inspection device, and the rotating device to control the rotation of at least part of the rotating device based on the detection results of the dimensional measuring device and the detection data of the appearance inspection device. Thus, when the operator needs to perform dimensional and appearance inspections on the monocrystalline silicon rod, the operator only needs to place the monocrystalline silicon rod on the conveying device, which transports the monocrystalline silicon rod to the dimensional measuring device for dimensional measurement. Then, the conveying device transports the part to be tested to the appearance inspection device for appearance inspection. This automates the inspection of monocrystalline silicon rods, reduces manual intervention, lowers detection errors, and improves the accuracy of monocrystalline silicon rod inspection, thereby solving the problem of low accuracy in the inspection of monocrystalline silicon rods in the prior art. Meanwhile, based on the detection results of the size measuring device and the detection data of the appearance inspection device, the control device determines the end of the monocrystalline silicon rod with higher verticality. By rotating the device, the end of the monocrystalline silicon rod with lower verticality is positioned in front of the end with higher verticality along the conveying direction, so as to facilitate the operation of the monocrystalline silicon rod in subsequent processes. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A perspective view of the overall structure of an embodiment of the detection device according to the present invention is shown;

[0019] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the adjustment device of the detection equipment in the image;

[0020] Figure 3 It shows Figure 1 A three-dimensional view of the adjustment device of the detection equipment from another perspective;

[0021] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the dimensional measuring device in the testing equipment;

[0022] Figure 5 It shows Figure 1 A three-dimensional view of part of the structure of the testing equipment in the image;

[0023] Figure 6 It shows Figure 1 A three-dimensional view of part of the appearance inspection device of the testing equipment in the document;

[0024] Figure 7 It shows Figure 1 A three-dimensional view of part of the appearance inspection device of the testing equipment in the document;

[0025] Figure 8 It shows Figure 1 A three-dimensional structural view of the clamping assembly of the detection equipment in the diagram;

[0026] Figure 9 It shows Figure 1 A three-dimensional view of part of the structure of the testing equipment in the image;

[0027] Figure 10 It shows Figure 1 A three-dimensional diagram of part of the testing equipment.

[0028] The above figures include the following reference numerals:

[0029] 1. Item to be tested;

[0030] 10. Rack;

[0031] 20. Conveying device;

[0032] 30. Dimension measuring device; 31. Fourth sliding assembly; 311. Fourth slide rail structure; 32. Fifth sliding assembly; 321. Fifth slide rail structure; 322. Fifth slider structure; 33. Dimension measuring assembly;

[0033] 40. Appearance inspection device; 41. Support assembly; 42. Clamping assembly; 421. Clamping structure; 4211. Main rotating part; 4212. Driven rotating part; 422. Engaging structure; 423. Sliding structure; 4231. Slide rail part; 4232. Slider part; 4233. Drive part; 4234. First driving wheel; 4235. First driven wheel; 4236. First transmission belt; 424. Third drive structure; 425. Second driving wheel; 426. Second driven wheel; 427. Second transmission belt; 43. Second drive assembly; 431. Second drive structure; 432. Lifting structure; 433. Driven cylinder; 44. End face inspection assembly; 45. Sixth sliding assembly; 451. Sixth slide rail structure; 452. Sixth slider structure; 46. Side inspection assembly;

[0034] 50. Rotating device; 51. Driving gear; 52. Driven gear; 53. Carrying assembly; 54. Third drive assembly; 55. Limiting assembly; 56. Stop structure;

[0035] 60. Adjusting device; 61. Bearing assembly; 611. Bearing structure; 612. Connecting structure; 613. Receiving structure; 6131. ​​First mating protrusion; 62. First driving assembly; 621. First driving structure; 622. Transmission structure; 6221. First mating recess; 6222. Second mating recess; 63. Clamping assembly; 631. Clamping structure; 6311. Second mating protrusion; 632. Rotating component; 64. Base plate; 65. Mounting plate; 66. First sliding assembly; 661. First slide rail structure; 662. First slider structure; 67. Second sliding assembly; 671. Second slide rail structure; 672. Second slider structure; 68. Third sliding assembly; 681. Third slide rail structure; 682. Third slider structure;

[0036] 70. Centering device; 71. Centering component; 72. Fourth drive component; 73. Rolling component. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0039] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0040] To address the issue of low accuracy in the detection of single-crystal silicon rods in existing technologies, this application provides a detection device.

[0041] like Figures 1 to 10 As shown, the testing equipment includes a frame 10, a conveying device 20, a dimensional measuring device 30, a visual inspection device 40, a rotating device 50, and a control device. The conveying device 20 is mounted on the frame 10 for conveying the workpiece 1 to be inspected. The dimensional measuring device 30 is mounted on the frame 10 for measuring the dimensions of the workpiece 1. The visual inspection device 40 is mounted on the frame 10 for inspecting the appearance of the workpiece 1. The rotating device 50 is mounted on the frame 10, and at least a portion of the rotating device 50 is rotatably mounted to drive the workpiece 1 to rotate. The control device is connected to the dimensional measuring device 30, the visual inspection device 40, and the rotating device 50 to control the rotation of at least a portion of the rotating device 50 based on the inspection results of the dimensional measuring device 30 and the inspection data of the visual inspection device 40.

[0042] Using the technical solution of this embodiment, the conveying device 20 of the testing equipment is mounted on the frame 10 for conveying the workpiece 1 to be tested. The dimensional measuring device 30 is mounted on the frame 10 for measuring the dimensions of the workpiece 1 to be tested. The appearance inspection device 40 is mounted on the frame 10 for inspecting the appearance of the workpiece 1 to be tested. The rotating device 50 is mounted on the frame 10, and at least a portion of the rotating device 50 is rotatably mounted to drive the workpiece 1 to be tested to rotate. The control device is connected to the dimensional measuring device 30, the appearance inspection device 40, and the rotating device 50 to control the rotation of at least a portion of the rotating device 50 based on the detection results of the dimensional measuring device 30 and the detection data of the appearance inspection device 40. In this way, when workers need to inspect the size and appearance of the monocrystalline silicon rod, they only need to place the rod on the conveying device 20. The conveying device 20 then transports the rod to the size measuring device 30 for size measurement. Afterward, the conveying device 20 transports the rod to be inspected to the appearance inspection device 40 for appearance inspection. This automates the inspection of monocrystalline silicon rods, reduces manual intervention, lowers inspection errors, and improves the accuracy of inspection, thus solving the problem of low accuracy in existing monocrystalline silicon rod inspections. Simultaneously, based on the inspection results from the size measuring device 30 and the inspection data from the appearance inspection device 40, the control device determines the end of the monocrystalline silicon rod with higher verticality. By rotating the device 50, the end with lower verticality is positioned in front of the end with higher verticality along the conveying direction, facilitating subsequent operations on the rod.

[0043] In this embodiment, the test piece 1 is a single-crystal silicon rod.

[0044] In this embodiment, the conveying device 20 is a double-speed chain conveyor. In this way, the double-speed chain conveyor can convert sliding friction into rolling friction during the conveying of the monocrystalline silicon rod, reducing damage to the surface of the monocrystalline silicon rod.

[0045] In this embodiment, the frame includes a first frame and a second frame. The conveying device 20 is mounted on the first frame, while the dimensional measuring device 30, the appearance inspection device 40, and the rotating device 50 are all mounted on the second frame. The first frame has four support legs at its bottom, each equipped with casters with feet for easy movement and minor height adjustments. The second frame includes a welding frame and casters. The welding frame is made of welded sheet metal square tubing, and the casters are bolted to the welding frame. The welding frame is fixed to the ground with threaded sleeves using fixing screws, and eye bolts are fixed to the welding frame via threaded connections to facilitate lifting during equipment transport and reduce handling difficulty.

[0046] like Figures 2 to 3As shown, the testing equipment also includes an adjustment device 60, which includes a support assembly 61, a first drive assembly 62, and at least two opposing clamping assemblies 63. The support assembly 61 supports the workpiece 1 to be tested. The first drive assembly 62 is mounted on the frame 10 and is drivenly connected to the support assembly 61 to drive the support assembly 61 to move toward or away from the frame 10. A clamping space is formed between the at least two clamping assemblies 63, and the clamping space is adjustable for clamping the workpiece 1 to be tested. In this way, when the conveying device 20 conveys the monocrystalline silicon rod to the adjusting device 60, the adjusting device 60 drives the carrying component 61 to move away from the frame 10 via the first driving component 62, thus lifting the monocrystalline silicon rod. Then, the clamping component 63 clamps the monocrystalline silicon rod for subsequent dimensional measurement or appearance inspection. After inspection, the first driving component 62 drives the carrying component 61 to move closer to the frame 10, thereby resetting the monocrystalline silicon rod. This process reduces manual intervention and lowers the workload of the workers. Simultaneously, at least two clamping components 63 clamp the monocrystalline silicon rod, ensuring accurate placement and preventing deviations that could reduce the accuracy of the inspection, thus improving the overall accuracy of the inspection equipment.

[0047] In this embodiment, the clamping assembly 63 further includes a plurality of rotating members 632, which are rotatably disposed on the clamping structure 631. The outer peripheral surface of the rotating member 632 is in contact with the outer surface of the monocrystalline silicon rod. The rolling direction of the rotating member 632 is consistent with the conveying direction of the conveying device 20, thereby reducing the friction of the monocrystalline silicon rod and ensuring the smooth transport of the monocrystalline silicon rod.

[0048] Specifically, the rotating component 632 is a roller.

[0049] In this embodiment, the first drive component 62 is either a pneumatic cylinder or a hydraulic cylinder.

[0050] In this embodiment, there are two adjustment devices 60, one of which is located at the size measuring device 30, and the other is located at the appearance inspection device 40. After the adjustment device 60 located at the appearance inspection device 40 lifts and clamps the monocrystalline silicon rod, the appearance inspection device 40 inspects the monocrystalline silicon rod.

[0051] like Figure 2 and Figure 3As shown, the adjustment device 60 also includes a base plate 64 and at least two mounting plates 65. The base plate 64 is mounted on the frame 10, and the at least two mounting plates 65 are mounted opposite each other on the base plate 64, forming an installation space between them. The support assembly 61 includes a support structure 611, at least two connecting structures 612, and a receiving structure 613. The support structure 611 is used to support the workpiece 1 to be tested. One end of the connecting structure 612 is connected to the support structure 611, and the other end of the connecting structure 612 is slidably mounted on the mounting plate 65. The receiving structure 613 is mounted on the support structure 611 and located within the installation space. A first drive assembly 62 is drivenly connected to the receiving structure 613 to drive the receiving structure 613 toward or away from the frame 10. Thus, the first drive assembly 62 drives the support structure 611 by driving the receiving structure 613. Meanwhile, the connection structure 612 can limit and stop the load-bearing structure 611, preventing it from shaking or moving too much during movement, thus reducing its load-bearing stability and improving its load-bearing reliability. On the other hand, it can provide auxiliary support for the load-bearing structure 611, assisting it in lifting and lowering, ensuring the reliability of its movement, and thus ensuring the reliability of the lifting and lowering movement of the monocrystalline silicon rod.

[0052] In this embodiment, two mounting plates 65 are provided.

[0053] It should be noted that the number of mounting plates 65 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of mounting plates 65 can be three, four, five, seven, or more.

[0054] In this embodiment, two connection structures 612 are provided.

[0055] It should be noted that the number of connection structures 612 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of connection structures 612 can be three, four, five, seven, or more.

[0056] like Figure 2 and Figure 3As shown, the first driving assembly 62 includes a first driving structure 621 and a transmission structure 622. At least a portion of the first driving structure 621 passes through at least one mounting plate 65 and is located within the mounting space. The transmission structure 622 is slidably mounted on the base plate 64 and located within the mounting space. The clamping assembly 63 includes a clamping structure 631, which is slidably mounted on the base plate 64. The transmission structure 622 has a first mating recess 6221 and a second mating recess 6222. The receiving structure 613 has a first mating protrusion 6131 that extends into the first mating recess 6221. During the sliding process of the first driving structure 621 driving the transmission structure 622, the first mating protrusion 6131 moves along the extending direction of the first mating recess 6221, thereby driving the receiving structure 613 to move. The clamping structure 631 has a second mating protrusion 6311 that extends into the second mating recess 6222. During the sliding process of the first driving structure 621 driving the transmission structure 622, the second mating protrusion 6311 moves along the extending direction of the second mating recess 6222 to drive at least two clamping structures 631 to move toward or away from each other. In this way, the transmission structure 622, on the one hand, through the cooperation between the first mating recess 6221 and the first mating protrusion 6131 of the receiving structure 613, transforms the sliding motion of the first driving structure 621 driving the transmission structure 622 into the movement of the receiving structure 613 toward or away from the frame 10; on the other hand, through the cooperation between the second mating recess 6222 and the second mating protrusion 6311 of the clamping structure 631, transforms the sliding motion of the first driving structure 621 driving the transmission structure 622 into the movement of the two clamping structures 631 toward or away from each other. Thus, the operator only needs to operate the first driving structure 621 to drive the transmission structure 622 to slide, which can realize the lifting and lowering movement of the single crystal silicon rod and the clamping movement of the two clamping structures 631, thereby reducing the difficulty for the operator, reducing the number of production equipment, reducing the production cost of the production equipment, and improving the economy of the testing equipment. At the same time, the above-mentioned configuration also makes the transmission method between the transmission structure 622, the receiving structure 613 and the clamping structure 631 simpler, easier to process and implement, and reduces the processing difficulty for workers.

[0057] like Figure 2 and Figure 3As shown, the adjusting device 60 further includes a first sliding assembly 66, a second sliding assembly 67, and a third sliding assembly 68. The first sliding assembly 66 includes a first slide rail structure 661 and a first slider structure 662, which are slidably engaged. The first slide rail structure 661 is mounted on the base plate 64 and extends along a first direction, while the first slider structure 662 is connected to the transmission structure 622. The second sliding assembly 67 includes a second slide rail structure 671 and a second slider structure 672, which are slidably engaged. The second slide rail structure 671 is mounted on the mounting plate 65 and extends along a second direction, while the second slider structure 672 is connected to the connecting structure 612. The third sliding assembly 68 includes a third slide rail structure 681 and a third slider structure 682, which are slidably engaged. The third slide rail structure 681 is mounted on the base plate 64 and extends along a third direction, while the third slider structure 682 is connected to the clamping structure 631. In this configuration, the first direction is parallel to the conveying direction of the conveying device 20, the second direction is perpendicular to the base plate 64, and the third direction is perpendicular to both the first and second directions. Thus, the transmission structure 622 slides on the base plate 64 via the first slider assembly, the connecting structure 612 slides on the mounting plate 65 via the second sliding assembly 67, and the clamping structure 631 slides on the base plate 64 via the third sliding assembly 68. This reduces the friction between the transmission structure 622, the clamping structure 631 and the base plate 64, and reduces the friction between the connecting structure 612 and the mounting plate 65, improving the smoothness of sliding of the transmission structure 622, the connecting structure 612 and the clamping structure 631. Simultaneously, the arrangement of the connecting structure 612 further limits and stops the bearing structure 611, preventing it from moving along the first direction under the drive of the transmission structure 622, thus enabling the lifting and lowering movement of the bearing structure 611, and consequently, the lifting and lowering movement of the single-crystal silicon rod. Meanwhile, the way the clamping structure 631 is set on the third slider structure 682 also enables the third sliding component 68 to limit and stop the clamping structure 631, preventing the clamping structure 631 from moving along the first direction under the drive of the transmission structure 622, ensuring that the clamping structure 631 moves along the third direction, thereby realizing the clamping function of the single crystal silicon rod and ensuring the adjustment reliability of the adjustment device 60.

[0058] In this embodiment, one of the two mounting plates 65 is equipped with a first driving assembly 62. This mounting plate 65 has two opposing second sliding assemblies 67, and a first driving structure 621 is located between the two opposing second sliding assemblies 67. The connecting structure 612 corresponding to this mounting plate 65 is connected to the second slider structure 672 of both second sliding assemblies 67.

[0059] In this embodiment, four third sliding components 68 are provided. The four third sliding components 68 are divided into two groups. The two groups of third sliding components 68 are located on both sides of the transmission structure 622 and are symmetrically distributed. The clamping structure 631 corresponding to each group of third sliding components 68 is connected to the third slider structure 682 of the two third sliding components 68.

[0060] like Figure 4 As shown, the dimension measuring device 30 includes a fourth sliding assembly 31, a fifth sliding assembly 32, and at least two dimension measuring assemblies 33. The fourth sliding assembly 31 includes a fourth slide rail structure 311 and a fourth slider structure, which are slidably engaged. The fourth slide rail structure 311 is mounted on the base plate 64 and located on one side of the adjusting device 60, extending along a second direction. The fifth sliding assembly 32 includes a fifth slide rail structure 321 and a fifth slider structure 322, which are slidably engaged. The fifth slide rail structure 321 is mounted on the fourth slider structure and extends along a first direction. At least one dimension measuring assembly 33 is mounted on the fifth slide rail structure 321, and at least another dimension measuring assembly 33 is mounted on the fifth slider structure 322, for measuring the dimensions of the workpiece 1 to be inspected. Thus, the dimension measuring device 30, positioned on one side of the adjusting device 60, after the adjusting device 60 lifts and clamps the monocrystalline silicon rod, has two dimension measuring components 33 moving to the position of the monocrystalline silicon rod via the fourth sliding component 31. Then, one dimension measuring component 33 measures one end of the monocrystalline silicon rod, while the other dimension measuring component 33 slides to the other end of the monocrystalline silicon rod via the fifth sliding component 32, thereby achieving the measurement of the length of the monocrystalline silicon rod. Simultaneously, this arrangement enhances the measurement flexibility of the dimension measuring device 30 and expands its measurement range to accommodate monocrystalline silicon rods of different specifications and sizes, thereby improving the versatility of the dimension measuring device 30. Furthermore, this arrangement enables the dimension measurement of the monocrystalline silicon rod without manual intervention, improving the measurement efficiency of the testing equipment and ensuring its measurement accuracy.

[0061] In this embodiment, the size measuring component 33 is a distance sensor. Thus, when the size measuring component 33 measures the monocrystalline silicon rod, it does not need to directly contact the monocrystalline silicon rod, avoiding damage to the outer surface of the monocrystalline silicon rod.

[0062] In this embodiment, two size measuring components 33 are provided.

[0063] It should be noted that the number of dimension measuring components 33 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of dimension measuring components 33 can be three, four, five, seven, or more.

[0064] Specifically, both the fourth sliding component 31 and the fifth sliding component 32 are linear modules.

[0065] In this embodiment, the size measuring device 30 also includes a bracket, and a fourth sliding component 31 is disposed on the bracket. The bottom of the bracket is fixed to the frame 10 by bolts.

[0066] like Figures 5 to 7 As shown, the appearance inspection device 40 includes a support assembly 41, a clamping assembly 42, a second drive assembly 43, at least two oppositely arranged end face detection assemblies 44, at least two oppositely arranged sixth sliding assemblies 45, and at least two side face detection assemblies 46. The support assembly 41 is mounted on the frame 10. The clamping assembly 42 includes at least two clamping structures 421, which surround each other to form a clamping space. The size of the clamping space is adjustable for clamping the workpiece 1 to be inspected. At least some of the clamping structures 421 are rotatably arranged to drive the workpiece 1 to rotate. The second drive assembly 43 is mounted on the support assembly 41 and is drivenly connected to the clamping assembly 42 to drive the clamping assembly 42 to move toward or away from the frame 10. At least two oppositely arranged end face detection assemblies 44 are mounted on the frame 10 for inspecting the two end faces of the workpiece 1. The sixth sliding assembly 45 includes a sixth slide rail structure 451 and a sixth slider structure 452, which are slidably engaged. The sixth slide rail structure 451 is disposed on the support assembly 41 and extends along the first direction. At least two side detection assemblies 46 are disposed corresponding to at least two of the sixth sliding assemblies 45. The side detection assemblies 46 are disposed on the sixth slider structure 452 for detecting the side of the workpiece 1 to be inspected. Thus, the appearance inspection device 40 drives the clamping assembly 42 to move to the position of the single crystal silicon rod through the second drive assembly 43. Then, the clamping assembly 42 clamps the single crystal silicon rod through the clamping structure 421. After that, the end face detection assembly 44 detects the two end faces of the single crystal silicon rod. Simultaneously, the two side inspection components 46 also inspect the two sides of the monocrystalline silicon rod via the sixth sliding component 45. After the two side inspection components 46 complete their inspection, the clamping structure 421 of the clamping component 42 causes the monocrystalline silicon rod to flip, thereby allowing the two side inspection components 46 to inspect the two uninspected sides of the monocrystalline silicon rod. This setup achieves comprehensive inspection of the monocrystalline silicon rod's appearance, eliminating the need for manual visual inspection, improving the inspection efficiency of the equipment, and ensuring the accuracy of the inspection.

[0067] In this embodiment, two side detection components 46 are provided.

[0068] It should be noted that the number of side detection components 46 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of side detection components 46 can be three, four, five, seven, or more.

[0069] In this embodiment, the end face detection component 44 includes four fixed-focus cameras. The four fixed-focus cameras are perpendicular to the end face of the monocrystalline silicon rod. The four fixed-focus cameras are respectively set to correspond one-to-one with the four corners of the end face of the monocrystalline silicon rod, so as to take pictures of the four corners of the end face of the monocrystalline silicon rod and detect the diagonal length of the end face of the monocrystalline silicon rod.

[0070] like Figures 6 to 8 As shown, the second drive assembly 43 includes a second drive structure 431 and a lifting structure 432. The second drive structure 431 drives the lifting structure 432 to move toward or away from the frame 10 via a lead screw and nut mechanism. The clamping assembly 42 includes a engaging structure 422, a sliding structure 423, and a third drive structure 424. The engaging structure 422 is disposed on the lifting structure 432. The sliding structure 423 includes a slide rail portion 4231 and a slider portion 4232, which are slidably engaged. The slide rail portion 4231 is disposed on the engaging structure 422 and extends along the extending direction of the engaging structure 422. At least one clamping structure 421 is disposed on the engaging structure 422, and the clamping structure 421 has a main rotating portion 4211, which is rotatably disposed. At least another clamping structure 421 is disposed on the slider portion 4232, and the clamping structure 421 has a secondary rotating portion 4212, which is rotatably disposed. The third drive structure 424 is mounted on the connecting structure 422 and driven by the main rotating part 4211 to drive the main rotating part 4211 to rotate the workpiece 1 to be inspected. Thus, the second drive structure 431 drives the lifting structure 432 through a screw and nut mechanism, thereby driving the clamping assembly 42. Simultaneously, the clamping assembly 42 is connected to the lifting structure 432 through the connecting structure. Meanwhile, the sliding structure 423 allows for adjustment of the clamping space size, enabling the clamping assembly 42 to adapt to monocrystalline silicon rods of different specifications and sizes, improving the clamping versatility of the clamping assembly 42 and the versatility of the inspection equipment. Furthermore, the clamping assembly 42 drives the main rotating part 4211 to rotate through the third drive structure 424, realizing the rotation of the monocrystalline silicon rod, achieving comprehensive appearance inspection of the monocrystalline silicon rod, and reducing the labor intensity of the workers. At the same time, the arrangement of the rotating part 4212 assists in realizing the rotation of the monocrystalline silicon rod, ensuring the reliability and smoothness of the rotation.

[0071] Specifically, after the monocrystalline silicon rod is cut, the shape of the monocrystalline silicon rod is irregular. After the size measuring device 30 measures the length of the monocrystalline silicon rod, the detection result is transmitted to the control device. The control device controls the third drive structure 424 to open according to the detection result and faces the side of the monocrystalline silicon rod with the longer edge toward the frame 10, so as to meet the requirements of the monocrystalline silicon rod slicing process.

[0072] In this embodiment, the second drive structure 431 is a motor, which is connected to the lead screw and nut mechanism via a coupling.

[0073] In this embodiment, the third drive structure 424 is a servo motor.

[0074] In this embodiment, the second drive assembly 43 further includes a driven cylinder 433. The cylinder body of the driven cylinder 433 is mounted on the support assembly 41, and the piston rod of the driven cylinder 433 is mounted on the engagement structure 422 to assist the movement of the lifting structure 432. The driven cylinder 433 does not provide power, but rather provides a buffering effect for the movement of the lifting structure 432.

[0075] In this embodiment, the sliding structure 423 further includes a driving part 4233, a first driving wheel 4234, a first driven wheel 4235, a first transmission belt 4236, and a ball screw nut mechanism. The motor is mounted on the engagement structure 422. The motor drives the first driving wheel 4234 to rotate. The first driving wheel 4234 drives the first driven wheel 4235 to rotate through the first transmission belt 4236. The first driven wheel 4235 is connected to the lead screw and drives the lead screw to rotate. The lead screw is threadedly engaged with the slider part 4232 and drives the slider part 4232 to slide on the slide rail part 4231.

[0076] Specifically, the drive unit 4233 is a servo motor.

[0077] In this embodiment, the clamping assembly 42 further includes a second driving wheel 425, a second driven wheel 426, and a second transmission belt 427. The third driving structure 424 drives the second driving wheel 425 to rotate. The second driving wheel 425 drives the second driven wheel 426 to rotate through the second transmission belt 427. The second driven wheel 426 is connected to the main rotating part 4211, thereby driving the main rotating part 4211 to rotate.

[0078] like Figure 9As shown, the rotating device 50 includes a driving gear 51, a driven gear 52, a carrying assembly 53, a third drive assembly 54, and at least two opposing limiting assemblies 55. The driving gear 51 is movably mounted on the frame 10. The driven gear 52 meshes with the driving gear 51. The carrying assembly 53 is mounted on the driven gear 52 and is used to carry the workpiece 1 to be tested. The third drive assembly 54 is located on the side of the frame 10 away from the workpiece 1 to be tested. The third drive assembly 54 is drivenly connected to the driving gear 51 to drive the driving gear 51 to rotate the driven gear 52. At least two opposing limiting assemblies 55 are mounted on the frame 10, and both limiting assemblies 55 are located on one side of the carrying assembly 53 to limit and stop at least a portion of the carrying assembly 53. In this way, the rotating device 50 drives the driving gear 51 to rotate via the third driving component 54. The driving gear 51 drives the driven gear 52 to rotate, and the driven gear 52 drives the carrying component 53 to rotate, thereby realizing the rotation of the monocrystalline silicon rod. This ensures that the end of the monocrystalline silicon rod with lower verticality is in front of the end with higher verticality along the conveying direction, which is beneficial for subsequent processes, avoids manual handling, reduces the workload of workers, and improves their efficiency. At the same time, the setting of the limiting component 55 can limit and stop the carrying component 53 when it rotates out of range, ensuring that the carrying component 53 can still match the conveying device 20 after rotation. This ensures that the monocrystalline silicon rod can be normally conveyed to the next process and that subsequent monocrystalline silicon rods can be normally conveyed to the carrying component 53, further ensuring the reliable conveying of the monocrystalline silicon rod and the rotational reliability of the rotating device 50. Meanwhile, the arrangement of the third drive assembly 54 on the other side of the frame 10 has two advantages. First, the frame 10 separates the third drive assembly 54, preventing interference between the third drive assembly 54 and the movement of other structures and ensuring the operational reliability of the third drive assembly 54. Second, it makes the structure of the rotating device 50 more compact and saves installation space for the rotating device 50.

[0079] In this embodiment, the towing assembly 53 rotates 180° to adjust the conveying direction of the single crystal silicon rod. The towing assembly 53 is provided with a stop structure 56. When the towing assembly 53 rotates more than 180°, the stop structure 56 contacts the limiting assembly 55 to limit and stop the towing assembly 53.

[0080] In this embodiment, two limit components 55 are provided.

[0081] It should be noted that the number of limit components 55 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the number of limit components 55 can be three, four, five, seven, or more.

[0082] In this embodiment, the third drive component 54 is a geared motor.

[0083] like Figure 1 and Figure 10 As shown, the testing equipment also includes a centering device 70. Both the conveying device 20 and the carrying assembly 53 are equipped with centering devices 70. Each centering device 70 includes at least two opposing centering components 71, a fourth driving component 72, and a rolling component 73. A centering space is formed between the at least two centering components 71, the size of which is adjustable to hold the workpiece 1 to be tested. The fourth driving component 72 is driven to each centering component 71, driving the at least two centering components 71 to move towards or away from each other. The rolling component 73 is rotatably mounted on the centering components 71, with at least a portion of its outer peripheral surface in contact with the outer surface of the workpiece 1 to be tested. Thus, the centering device 70 drives the two centering components 71 to move via the fourth driving component 72, thereby achieving the centering operation of the single-crystal silicon rod. This ensures the centering of the single-crystal silicon rod on the conveying device 20 and the carrying assembly 53, preventing misalignment of the single-crystal silicon rod and resulting in inaccurate testing results, further improving the testing accuracy of the equipment. Meanwhile, the arrangement of the rolling component 73 reduces the friction between the monocrystalline silicon rod and the centering component 71, thus improving the smoothness of the monocrystalline silicon rod's transport.

[0084] In this embodiment, the rolling direction of the rolling component 73 is consistent with the conveying direction of the monocrystalline silicon rod, thereby reducing the friction of the monocrystalline silicon rod and ensuring the smooth transport of the monocrystalline silicon rod.

[0085] Specifically, the scrolling component 73 is a roller.

[0086] In this embodiment, the fourth drive component 72 is a parallel cylinder.

[0087] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0088] The inspection equipment includes a conveyor mounted on a frame for transporting the workpiece to be inspected. A dimensional measuring device is also mounted on the frame for measuring the dimensions of the workpiece. A visual inspection device is mounted on the frame for inspecting the appearance of the workpiece. A rotating device is mounted on the frame, with at least a portion rotatably mounted to rotate the workpiece. A control device is connected to the dimensional measuring device, the visual inspection device, and the rotating device to control the rotation of at least a portion of the rotating device based on the measurement results from the dimensional measuring device and the data from the visual inspection device. Thus, when operators need to inspect the dimensions and appearance of monocrystalline silicon rods, they only need to place the rod on the conveyor, which transports it to the dimensional measuring device for measurement. Then, the conveyor transports the workpiece to the visual inspection device for appearance inspection. This automates the inspection of monocrystalline silicon rods, reduces manual intervention, lowers inspection errors, and improves the accuracy of monocrystalline silicon rod inspection, thereby solving the problem of low accuracy in existing monocrystalline silicon rod inspection technologies. Meanwhile, based on the detection results of the size measuring device and the detection data of the appearance inspection device, the control device determines the end of the monocrystalline silicon rod with higher verticality. By rotating the device, the end of the monocrystalline silicon rod with lower verticality is positioned in front of the end with higher verticality along the conveying direction, so as to facilitate the operation of the monocrystalline silicon rod in subsequent processes.

[0089] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0090] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0091] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A testing device, characterized in that, include: Rack (10); A conveying device (20) is provided on the frame (10) for conveying the workpiece (1) to be inspected; A size measuring device (30) is mounted on the frame (10) for measuring the size of the workpiece (1) to be inspected; An appearance inspection device (40) is installed on the frame (10) for inspecting the appearance of the part to be inspected (1); A rotating device (50) is mounted on the frame (10), and at least part of the rotating device (50) is rotatably mounted to drive the test piece (1) to rotate. The control device is connected to the size measuring device (30), the appearance inspection device (40) and the rotating device (50) to control at least part of the rotating device (50) to rotate according to the detection results of the size measuring device (30) and the detection data of the appearance inspection device (40).

2. The detection device according to claim 1, characterized in that, The detection equipment further includes an adjustment device (60), the adjustment device (60) comprising: A carrier component (61) is used to carry the test piece (1); A first drive assembly (62) is disposed on the frame (10). The first drive assembly (62) is drivenly connected to the support assembly (61) to drive the support assembly (61) to move toward or away from the frame (10). At least two opposing clamping components (63) are arranged to form a clamping space between the at least two clamping components (63), the clamping space being adjustable for clamping the object to be tested (1).

3. The detection device according to claim 2, characterized in that, The adjusting device (60) further includes a base plate (64) and at least two mounting plates (65). The base plate (64) is disposed on the frame (10), and the at least two mounting plates (65) are disposed opposite to each other on the base plate (64), forming an installation space between the at least two mounting plates (65). The supporting component (61) includes: A supporting structure (611) is used to support the component to be tested (1); At least two connecting structures (612) are provided, one end of which is connected to the supporting structure (611), and the other end of which is slidably disposed on the mounting plate (65). A receiving structure (613) is disposed on the supporting structure (611) and located within the installation space; The first drive component (62) is driven to connect with the receiving structure (613) to drive the receiving structure (613) to move toward or away from the frame (10).

4. The detection device according to claim 3, characterized in that, The first drive assembly (62) includes a first drive structure (621) and a transmission structure (622). At least a portion of the first drive structure (621) passes through at least one of the mounting plates (65) and is located within the mounting space. The transmission structure (622) is slidably disposed on the base plate (64) and is located within the mounting space. The clamping assembly (63) includes a clamping structure (631) which is slidably disposed on the base plate (64); The transmission structure (622) has a first mating recess (6221) and a second mating recess (6222), and the receiving structure (613) has a first mating protrusion (6131). The first mating protrusion (6131) extends into the first mating recess (6221). During the process of the first driving structure (621) driving the transmission structure (622) to slide, the first mating protrusion (6131) moves along the extension direction of the first mating recess (6221) to drive the receiving structure (613) to move. The clamping structure (631) has a second mating protrusion (6311) that extends into the second mating recess (6222). During the process of the first driving structure (621) driving the transmission structure (622) to slide, the second mating protrusion (6311) moves along the extension direction of the second mating recess (6222) to drive at least two of the clamping structures (631) to move toward or away from each other.

5. The detection device according to claim 4, characterized in that, The regulating device (60) further includes: The first sliding component (66) includes a first slide rail structure (661) and a first slider structure (662), the first slide rail structure (661) and the first slider structure (662) are slidably engaged, the first slide rail structure (661) is disposed on the base plate (64) and extends along a first direction, and the first slider structure (662) is connected to the transmission structure (622); The second sliding assembly (67) includes a second slide rail structure (671) and a second slider structure (672), the second slide rail structure (671) and the second slider structure (672) are slidably engaged, the second slide rail structure (671) is disposed on the mounting plate (65) and extends along the second direction, and the second slider structure (672) is connected to the connecting structure (612). The third sliding assembly (68) includes a third slide rail structure (681) and a third slider structure (682), wherein the third slide rail structure (681) and the third slider structure (682) are slidably engaged, the third slide rail structure (681) is disposed on the base plate (64) and extends along a third direction, and the third slider structure (682) is connected to the clamping structure (631); The first direction is parallel to the conveying direction of the conveying device (20), the second direction is perpendicular to the base plate (64), and the third direction is perpendicular to both the first and second directions.

6. The detection device according to claim 5, characterized in that, The size measuring device (30) includes: The fourth sliding component (31) includes a fourth slide rail structure (311) and a fourth slider structure, wherein the fourth slide rail structure (311) and the fourth slider structure are slidably engaged, the fourth slide rail structure (311) is disposed on the base plate (64) and located on one side of the adjusting device (60), and the fourth slide rail structure (311) extends along the second direction; The fifth sliding component (32) includes a fifth slide rail structure (321) and a fifth slider structure (322), wherein the fifth slide rail structure (321) and the fifth slider structure (322) are slidably engaged, and the fifth slide rail structure (321) is disposed on the fourth slider structure and extends along the first direction; At least two dimension measuring components (33), at least one of the dimension measuring components (33) is disposed on the fifth slide rail structure (321), and at least another of the dimension measuring components (33) is disposed on the fifth slider structure (322), for measuring the dimensions of the workpiece (1) to be inspected.

7. The detection device according to claim 5, characterized in that, The appearance inspection device (40) includes: A support assembly (41) is mounted on the frame (10); The clamping assembly (42) includes at least two clamping structures (421), with a clamping space formed between the at least two clamping structures (421), the size of which is adjustable for clamping the workpiece (1) to be tested; wherein at least a portion of the clamping structures (421) is rotatably configured to drive the workpiece (1) to be tested to rotate. A second drive assembly (43) is disposed on the support assembly (41). The second drive assembly (43) is drivenly connected to the clamping assembly (42) to drive the clamping assembly (42) to move toward or away from the frame (10). At least two oppositely arranged end face detection components (44) are disposed on the frame (10) for detecting the two end faces of the workpiece (1) to be tested; At least two opposing sixth sliding components (45), each sixth sliding component (45) includes a sixth slide rail structure (451) and a sixth slider structure (452), the sixth slide rail structure (451) and the sixth slider structure (452) are slidably engaged, the sixth slide rail structure (451) is disposed on the support component (41) and extends along the first direction; At least two side detection components (46) are provided in a one-to-one correspondence with at least two of the sixth sliding components (45). The side detection components (46) are provided on the sixth slider structure (452) for detecting the side of the object to be detected (1).

8. The detection device according to claim 7, characterized in that, The second drive assembly (43) includes a second drive structure (431) and a lifting structure (432). The second drive structure (431) drives the lifting structure (432) to move toward or away from the frame (10) via a screw and nut mechanism. The clamping assembly (42) includes: A connecting structure (422) is provided on the lifting structure (432); The sliding structure (423) includes a slide rail (4231) and a slider (4232), the slide rail (4231) and the slider (4232) are slidably engaged, the slide rail (4231) is disposed on the joint structure (422) and extends along the extension direction of the joint structure (422); At least one of the clamping structures (421) is disposed on the engagement structure (422), the clamping structure (421) having a main rotating part (4211) which is rotatably disposed; At least one of the clamping structures (421) is provided on the slider portion (4232), the clamping structure (421) having a rotating portion (4212) which is rotatably provided; The third driving structure (424) is disposed on the joining structure (422) and drivenly connected to the main rotating part (4211) to drive the main rotating part (4211) to rotate the test piece (1).

9. The detection device according to claim 1, characterized in that, The rotating device (50) includes: The drive gear (51) is movably mounted on the frame (10); The driven gear (52) meshes with the driving gear (51); A towing assembly (53) is disposed on the driven gear (52), and the towing assembly (53) is used to carry the test piece (1); The third drive assembly (54) is disposed on the side of the frame (10) away from the test piece (1). The third drive assembly (54) is driven to connect with the drive gear (51) to drive the drive gear (51) to rotate the driven gear (52). At least two opposing limiting components (55) are disposed on the frame (10), and both of the limiting components (55) are located on one side of the towing assembly (53) to limit and stop at least a portion of the towing assembly (53).

10. The detection device according to claim 9, characterized in that, The testing equipment further includes a centering device (70), and both the conveying device (20) and the towing assembly (53) are equipped with a centering device (70). The centering device (70) includes: At least two opposing centering components (71) are arranged to form a centering space between the at least two centering components (71), the size of the centering space being adjustable for holding the test piece (1); The fourth drive component (72) is driven to each of the centering components (71) to drive at least two of the centering components (71) to move toward or away from each other; A rolling assembly (73) is rotatably disposed on the centering assembly (71), and at least a portion of the outer peripheral surface of the rolling assembly (73) is in contact with the outer surface of the test piece (1).

Images