Test screen full automatic calibration device
By using a robotic arm with a fully automated calibration device and a high-speed industrial camera to inspect test sieves, the problems of low detection accuracy and easy damage to sieves in existing technologies have been solved, achieving efficient and accurate test sieve inspection.
Patent Information
- Application Number
- CN202521181059.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-14
- Estimated Expiration
- 2035-06-10
AI Technical Summary
In existing sieve testing methods, non-contact image measurement has large subjective errors, while manual contact testing is prone to damaging the sieve, resulting in reduced testing accuracy and failing to meet the demand for efficient and accurate testing.
The fully automated calibration device uses a robotic arm to grasp the test sieve for testing. Combined with a high-speed industrial camera and a ring LED light source, it enables rapid acquisition and calculation of the sieve mesh aperture, avoiding damage from manual contact and improving testing accuracy.
It achieves automation and accuracy in sieve testing, avoids damage to the sieves caused by manual operation, and improves testing efficiency and accuracy.
Smart Images
Figure CN224500308U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test sieve testing technology, specifically a fully automatic test sieve calibration device. Background Technology
[0002] A test sieve is a sieve that conforms to a certain standard specification. It is mainly used for sieving and analyzing the particle size of particulate materials. Before use, the test sieve needs to be tested and calibrated. Usually, manual non-contact image measurement or contact measurement calibration is used to test and calibrate the test sieve. However, the efficiency is low, often taking ten to fifteen minutes. At the same time, the subjective error of non-contact image measurement calibration is large, which leads to a decrease in the detection accuracy of the test sieve. On the other hand, manual contact calibration is often easy to damage the sieve mesh, which cannot well meet the testing needs of the test sieve.
[0003] During the design process of this utility model, the following problems were found in the existing technology: most common test sieve detection methods use non-contact image measurement and calibration, but the subjective error of non-contact image measurement is large, and manual contact detection and calibration often damages the sieve, which leads to a reduction in the accuracy of test sieve detection and calibration and cannot well meet the needs of test sieve detection and calibration. Summary of the Invention
[0004] The purpose of this invention is to provide a fully automatic calibration device for test sieves, in order to solve the problem that most common test sieve testing methods mentioned in the background art adopt non-contact image measurement and contact testing calibration, which have large subjective errors and are also prone to damage to the sieve mesh, resulting in reduced accuracy of test sieve testing calibration and failing to meet the needs of test sieve testing calibration.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic test sieve calibration device, including a detection chamber, an operating table installed inside the detection chamber, clamping components installed on both sides of the operating table, a detection component installed inside the detection chamber, an adjustment component installed at the bottom of the operating table, a robotic arm unit installed outside the detection chamber, and a storage chamber installed on one side of the robotic arm unit.
[0006] The clamping assembly includes a clamping seat, which is fixedly connected to both sides of the operating table. A clamping motor is installed at one end of the clamping seat, and a bidirectional threaded shaft is driven to one end of the clamping motor. Clamping rods are threaded to both ends of the bidirectional threaded shaft, and a positioning clamping plate is installed at one end of the clamping rod.
[0007] The detection assembly includes a detection frame, the bottom of which is fixedly connected to the top center of the back of the operating table. A detection camera is mounted on the top of the detection frame, and a light source is mounted below the top of the detection frame.
[0008] The adjustment assembly includes a lateral adjustment seat, which is installed at the center of the inner wall of the bottom of the detection chamber. A first motor is installed at one end of the lateral adjustment seat, and a first threaded shaft is driven and connected to one end of the first motor. A first connecting block is connected to the external thread of the first threaded shaft. A longitudinal adjustment seat is installed on the top of the first connecting block. A second motor is installed at one end of the longitudinal adjustment seat, and a second threaded shaft is driven and connected to one end of the second motor. A second connecting block is connected to the external thread of the second threaded shaft.
[0009] More preferably, a control module is installed on the top of the detection chamber, and the control module is electrically connected to the clamping motor, the detection camera, the light source and the robotic arm unit respectively, and automatic doors are installed on both sides of the front of the detection chamber.
[0010] More preferably, the clamping seat is a U-shaped cross-section groove structure with the opening facing forward, and the bidirectional threaded shaft is rotatably connected to the inside of the clamping seat, and the clamping rod is connected to the two ends of the bidirectional threaded shaft through a thread to form a sliding connection structure with the clamping seat.
[0011] More preferably, the bottom of the positioning clamp and the top of the operating table form a sliding connection structure, and the positioning clamp is a V-shaped plate structure.
[0012] More preferably, the inspection frame is an inverted L-shaped electric lifting rod structure, and an inspection camera is installed on the bottom inner wall of the top of the inspection frame. The inspection camera is a high-speed industrial camera with five megapixels and a frame rate greater than 120 FPS. The light source is a ring LED light, and the center of the ring light source and the center of the bottom camera of the inspection camera are on the same center line.
[0013] More preferably, the first connecting block is slidably connected to the interior of the transverse adjusting seat, and the second connecting block is slidably connected to the interior of the longitudinal adjusting seat, and the top of the second connecting block is fixedly connected to the bottom of the operating table, and the first threaded shaft and the second threaded shaft are perpendicular to each other.
[0014] More preferably, the robotic arm unit is a six-axis collaborative robotic arm, one end of the robotic arm unit is driven to be connected to a mechanical claw, and the mechanical claw is a three-finger parallel gripper, one end of the mechanical claw is driven to be connected to a pneumatic gripper, and the end of the pneumatic gripper is set with a V-shaped structure, and the storage compartment is provided with three compartments inside.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the common manual vision and contact-based inspection and calibration method to a robotic arm that grabs the test sieves to be tested from the storage bin and moves them to the inspection station, and automatically picks up and puts the test sieves after inspection, damage to the sieves caused by manual contact is avoided, thus better meeting the needs of test sieve inspection. At the same time, a high-speed industrial camera is set up to quickly collect, calculate and detect the mesh aperture of the test sieves, further improving the accuracy of test sieve inspection. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present invention;
[0017] Figure 2 This is a magnified front view of the clamping assembly, detection assembly, and adjustment assembly of this utility model;
[0018] Figure 3 This is an exploded magnified structural diagram of the clamping component of this utility model;
[0019] Figure 4 This is an exploded magnified structural diagram of the adjusting component of this utility model.
[0020] Figure 5 This is a magnified front view of the robotic arm unit of this utility model.
[0021] In the diagram: 1. Inspection chamber; 101. Control module; 2. Operating table; 3. Clamping assembly; 301. Clamping seat; 302. Clamping motor; 303. Bidirectional threaded shaft; 304. Clamping rod; 305. Positioning clamp; 4. Inspection assembly; 401. Inspection frame; 402. Inspection camera; 403. Light source; 5. Adjustment assembly; 501. Lateral adjustment seat; 502. First motor; 503. First threaded shaft; 504. First connecting block; 505. Longitudinal adjustment seat; 506. Second motor; 507. Second threaded shaft; 508. Second connecting block; 6. Robotic arm unit; 601. Mechanical gripper; 602. Pneumatic gripper; 7. Storage chamber. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 5This utility model provides a technical solution: a fully automatic calibration device for test sieves, including a detection chamber 1, an operating table 2 installed inside the detection chamber 1, clamping components 3 installed on both sides of the operating table 2, a detection component 4 installed inside the detection chamber 1, an adjustment component 5 installed at the bottom of the operating table 2, a robotic arm unit 6 set outside the detection chamber 1, and a storage chamber 7 set on one side of the robotic arm unit 6.
[0024] The clamping assembly 3 includes a clamping seat 301, which is fixedly connected to both sides of the operating table 2. A clamping motor 302 is installed at one end of the clamping seat 301. A bidirectional threaded shaft 303 is driven to one end of the clamping motor 302. A clamping rod 304 is threaded to both ends of the bidirectional threaded shaft 303. A positioning clamping plate 305 is installed at one end of the clamping rod 304.
[0025] The detection assembly 4 includes a detection frame 401, and the bottom of the detection frame 401 is fixedly connected to the top center of the back of the operating table 2. A detection camera 402 is installed on the top of the detection frame 401, and a light source 403 is installed below the top of the detection frame 401.
[0026] The adjustment assembly 5 includes a lateral adjustment seat 501, which is installed at the center of the bottom inner wall of the detection chamber 1. A first motor 502 is installed at one end of the lateral adjustment seat 501. A first threaded shaft 503 is driven and connected to one end of the first motor 502. A first connecting block 504 is connected to the external thread of the first threaded shaft 503. A longitudinal adjustment seat 505 is installed on the top of the first connecting block 504. A second motor 506 is installed at one end of the longitudinal adjustment seat 505. A second threaded shaft 507 is driven and connected to one end of the second motor 506. A second connecting block 508 is connected to the external thread of the second threaded shaft 507.
[0027] In this embodiment, as Figure 1 As shown, a control module 101 is installed on the top of the detection chamber 1, and the control module 101 is electrically connected to the clamping motor 302, the detection camera 402, the light source 403 and the robotic arm unit 6 respectively, and automatic doors are installed on both sides of the front of the detection chamber 1.
[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the clamping seat 301 is a U-shaped cross-section groove structure with the opening facing the front, and the bidirectional threaded shaft 303 is rotatably connected to the inside of the clamping seat 301. The clamping rod 304 forms a sliding connection structure with the clamping seat 301 by threading the two ends of the bidirectional threaded shaft 303.
[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the bottom of the positioning clamp 305 and the top of the operating table 2 form a sliding connection structure, and the positioning clamp 305 is a V-shaped plate structure.
[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the inspection frame 401 is an inverted L-shaped electric lifting rod structure, and an inspection camera 402 is installed on the bottom inner wall of the top of the inspection frame 401. The inspection camera 402 is a high-speed industrial camera with five million pixels and a frame rate greater than 120 FPS. The light source 403 is a ring LED light, and the center of the ring light source 403 and the center of the bottom camera of the inspection camera 402 are on the same center line.
[0031] In this embodiment, as Figure 2 and Figure 4 As shown, the first connecting block 504 is slidably connected to the inside of the horizontal adjusting seat 501, and the second connecting block 508 is slidably connected to the inside of the vertical adjusting seat 505. The top of the second connecting block 508 is fixedly connected to the bottom of the operating table 2, and the first threaded shaft 503 and the second threaded shaft 507 are perpendicular to each other.
[0032] In this embodiment, as Figure 1 and Figure 5 As shown, the robotic arm unit 6 is a six-axis collaborative robotic arm. One end of the robotic arm unit 6 is driven to be connected to a robotic gripper 601, which is a three-finger parallel gripper. One end of the robotic gripper 601 is driven to be connected to a pneumatic gripper 602, and the end of the pneumatic gripper 602 is set with a V-shaped structure. The storage compartment 7 has three compartments inside.
[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the fully automatic test sieve calibration device operates as follows:
[0034] First, the test sieves to be tested are stacked and placed in the feeding area of the storage bin 7. Then, the control module 101 is used to set the lifting and lowering of the robotic arm unit 6, the bin door of the testing bin 1, the clamping motor 302, the testing frame 401, and the data acquisition and calculation of the testing camera 402.
[0035] Subsequently, the six-axis collaborative robotic arm in the robotic arm unit 6 is started, driving the three-jaw robotic claw 601 to cooperate with the V-shaped pneumatic gripper 602 at the end to clamp the test sieve and clamp the test sieve to the detection area in the operating table 2.
[0036] Next, the clamping motor 302 starts, driving the bidirectional threaded shaft 303 inside the clamping seat 301 to rotate, driving the clamping rods 304 at both ends to move closer together. This, in conjunction with the V-shaped positioning clamping plate 305 at one end of the clamping rods 304, positions and clamps the test sieve on the operating table 2. Simultaneously, the robotic arm unit 6 resets, the door of the testing chamber 1 closes to avoid external interference during testing and calibration, the ring-shaped LED light source 403 at the bottom of one end of the top of the testing frame 401 starts, adjusting the brightness of the testing area, and the five-megapixel high-speed industrial inspection camera 402 on the testing frame 401 starts, monitoring the test... The sieve holes are captured and positioned for detection. At the same time, the detection frame 401 moves up and down to adjust the capture range of the camera 402. The first motor 502 at one end of the horizontal adjustment seat 501 at the bottom of the operating table 2 is started, driving the first threaded shaft 503 to rotate, which drives the vertical adjustment seat 505 on the first connecting block 504 to adjust the horizontal position. In conjunction with the second motor 506 driving the second threaded shaft 507 to drive the second connecting block 508 to adjust the vertical position, the horizontal and vertical positions of the operating table 2 are adjusted to facilitate the detection of the test sieve on the operating table 2.
[0037] Finally, the test data is transmitted to the control module 101 via electrical signals for analysis. The test results are then judged and processed. After processing, the chamber door opens, all components are reset, and the robotic arm unit 6 removes the test sieve. Based on the data, the test sieve is placed in the corresponding qualified and unqualified areas, allowing subsequent test sieve testing and calibration operations to proceed.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fully automatic calibration device for test sieves, comprising a testing chamber (1), characterized in that: An operating table (2) is installed inside the detection chamber (1). Clamping components (3) are installed on both sides of the operating table (2). A detection component (4) is installed inside the detection chamber (1). An adjustment component (5) is installed at the bottom of the operating table (2). A robotic arm unit (6) is provided outside the detection chamber (1). A storage chamber (7) is provided on one side of the robotic arm unit (6). The clamping assembly (3) includes a clamping seat (301), which is fixedly connected to both sides of the operating table (2). A clamping motor (302) is installed at one end of the clamping seat (301), and a bidirectional threaded shaft (303) is driven to one end of the clamping motor (302). A clamping rod (304) is threaded to both ends of the bidirectional threaded shaft (303), and a positioning clamping plate (305) is installed at one end of the clamping rod (304). The detection component (4) includes a detection frame (401), and the bottom of the detection frame (401) is fixedly connected to the top center of the back of the operating table (2). A detection camera (402) is installed on the top of the detection frame (401), and a light source (403) is installed below the top of the detection frame (401). The adjustment assembly (5) includes a lateral adjustment seat (501), which is installed at the center of the bottom inner wall of the detection chamber (1). A first motor (502) is installed at one end of the lateral adjustment seat (501), and a first threaded shaft (503) is driven and connected to one end of the first motor (502). A first connecting block (504) is connected to the external thread of the first threaded shaft (503). A longitudinal adjustment seat (505) is installed on the top of the first connecting block (504). A second motor (506) is installed at one end of the longitudinal adjustment seat (505), and a second threaded shaft (507) is driven and connected to one end of the second motor (506). A second connecting block (508) is connected to the external thread of the second threaded shaft (507).
2. The fully automatic test sieve calibration device according to claim 1, characterized in that: The top of the detection chamber (1) is equipped with a control module (101), and the control module (101) is electrically connected to the clamping motor (302), the detection camera (402), the light source (403) and the robotic arm unit (6), respectively. Automatic doors are installed on both sides of the front of the detection chamber (1).
3. The fully automatic test sieve calibration device according to claim 1, characterized in that: The clamping seat (301) is a U-shaped cross-section groove structure with the opening facing the front, and the bidirectional threaded shaft (303) is rotatably connected to the inside of the clamping seat (301), and the clamping rod (304) is connected to both ends of the bidirectional threaded shaft (303) by thread to form a sliding connection structure with the clamping seat (301).
4. The fully automatic test sieve calibration device according to claim 1, characterized in that: The bottom of the positioning clamp (305) and the top of the operating table (2) form a sliding connection structure, and the positioning clamp (305) is a V-shaped plate structure.
5. The fully automatic test sieve calibration device according to claim 1, characterized in that: The inspection frame (401) is an inverted L-shaped electric lifting rod structure, and an inspection camera (402) is installed on the bottom inner wall of the top of the inspection frame (401). The inspection camera (402) is a high-speed industrial camera with five million pixels and a frame rate greater than 120 FPS. The light source (403) is a ring LED light, and the center of the ring light source (403) and the center of the bottom camera of the inspection camera (402) are on the same center line.
6. The fully automatic test sieve calibration device according to claim 1, characterized in that: The first connecting block (504) is slidably connected to the inside of the horizontal adjustment seat (501), and the second connecting block (508) is slidably connected to the inside of the vertical adjustment seat (505). The top of the second connecting block (508) is fixedly connected to the bottom of the operating table (2). The first threaded shaft (503) and the second threaded shaft (507) are perpendicular to each other.
7. The fully automatic test sieve calibration device according to claim 1, characterized in that: The robotic arm unit (6) is a six-axis collaborative robotic arm. One end of the robotic arm unit (6) is driven to be connected to a mechanical claw (601), and the mechanical claw (601) is a three-finger parallel gripper. One end of the mechanical claw (601) is driven to be connected to a pneumatic gripper (602), and the end of the pneumatic gripper (602) is set with a V-shaped structure. The storage compartment (7) has three partitions inside.