Height self-adjusting type workbench for machine vision recognition

Abstract

The utility model discloses a height self-adjusting type workbench for machine vision identification, which comprises a supporting table, the upper end of the supporting table is fixedly connected with an upper positioning frame, the lower surface of the upper positioning frame is fixedly connected with an identification camera, the surface of the upper positioning frame is fixedly provided with two limiting supports, and the side surfaces of the limiting supports are fixedly provided with infrared sensors. The height self-adjusting type workbench for machine visual recognition is provided with a limiting support and an infrared sensor, when the height self-adjusting type workbench for machine visual recognition works, materials are placed in a groove of a bearing block, then a driving motor drives a transmission lead screw to rotate, the transmission lead screw drives a first linkage sliding block and the bearing block to slide upwards through threads, and therefore the materials can be automatically adjusted; and after the raw materials shield the infrared sensor, the infrared sensor controls the driving motor to stop, so that the materials with different heights are automatically leveled, the focusing time of the recognition camera is conveniently shortened, the efficiency of detection work is improved, and the position of the infrared sensor is conveniently changed through the limiting bracket.

Description

Technical Field

[0001] The utility model relates to the technical field of visual recognition, in particular to a height self-adjusting workbench for machine vision recognition. Background Technique

[0002] Machine vision recognition is an interdisciplinary subject involving many fields such as artificial intelligence, neurobiology, psychophysics, computer science, image processing, pattern recognition, etc. It mainly uses a computer to simulate the visual function of a person, extracts information from the images of objective things, processes and understands it, and finally uses it for actual detection, measurement and control. The following are some key information about machine vision recognition. A typical industrial machine vision application system includes digital image processing technology, mechanical engineering technology, control technology, light source lighting technology, optical imaging technology, sensor technology, analog and digital video technology, computer software and hardware technology, human-machine interface technology, etc. With the continuous development of technology, machine vision recognition technology plays an increasingly important role in modern manufacturing, automated production lines, quality control, robot navigation, security monitoring and other fields, and continuously expands new application scenarios.

[0003] The existing machine vision recognition devices are generally arranged at the upper end of the workbench. Subsequently, during work, the materials placed on the table are photographed by a camera for detection. When continuously detecting multiple different materials, since the heights of the materials are different, the visual recognition device generally needs to adjust the focal length to focus clearly, which increases the detection time and is not conducive to improving work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a height self-adjusting workbench for machine vision recognition, so as to solve the problem that due to the different heights of each material, the visual recognition device generally needs to adjust the focal length to focus clearly, which increases the detection time and is not conducive to improving work efficiency proposed in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solution: A height self-adjusting workbench for machine vision recognition, including a support table, with an upper positioning frame fixedly connected to its upper end. A recognition camera is fixedly connected to the lower surface of the upper positioning frame. Two limit brackets are fixed on the surface of the upper positioning frame, and infrared sensors are fixed on the side surfaces of the limit brackets. A driving motor is fixedly connected to the lower surface of the support table, and an output end of the driving motor is fixedly connected to a transmission lead screw. An opening is provided on the lower surface of the support table, and a first linkage slider is slidably connected to the inner wall of the opening of the support table. A groove is provided on the upper surface of the support table, and a supporting block is slidably connected to the inner wall of the groove of the support table. A groove is provided on the surface of the supporting block, and a linkage positioning mechanism is provided inside the supporting block, which drives the first magnet to repel the second magnet through the second linkage slider to drive the first piston rod to push the second piston rod and the positioning clamping plate to slide.

[0006] Preferably, the infrared sensors are arranged on the opposite surfaces of the two limit brackets, and the infrared sensors on both sides are symmetrically arranged. The transmission lead screw and the linkage slider form a threaded connection.

[0007] With the above technical solution, through the symmetrically arranged infrared sensors on both sides, after the infrared sensors are blocked by the material, the infrared sensors will control the driving motor to work.

[0008] Preferably, the upper end of the first linkage slider penetrates the bottom surface of the groove of the support table, and the upper end of the first linkage slider is fixedly connected to the lower surface of the supporting block.

[0009] With the above technical solution, through the rotation of the transmission lead screw, the transmission lead screw drives the first linkage slider to slide upward through the thread, so that the first linkage slider drives the supporting block to move.

[0010] Preferably, the linkage positioning mechanism includes a second linkage slider, which is slidably connected to the bottom surface of the groove of the supporting block. A first magnet is fixedly connected to the side surface of the lower end of the second linkage slider. Two air grooves are opened inside the supporting block, and a first piston rod is slidably connected to the inner wall of the air groove of the supporting block. A second magnet is fixed to one end of the first piston rod. A support column is fixed to the inner wall of the groove of the supporting block, and a positioning clamping plate is arranged on the outer surface of the support column. A second piston rod is fixedly connected to the lower side surface of the positioning clamping plate.

[0011] With the above technical solution, through the linkage positioning mechanism, the second linkage slider drives the first magnet to repel the second magnet to move.

[0012] Preferably, a spring is connected between the second linkage slider and the supporting block, and the two first magnets are symmetrically arranged with respect to the midline of the second linkage slider.

[0013] With the above technical solution, the first piston rod is driven to slide by the second magnet.

[0014] Preferably, the ends of the first magnet and the second magnet facing each other have the same magnetic poles, and a spring is connected between the first piston rod and the inner wall of the air groove of the supporting block.

[0015] With the above technical solution, by the sliding of the first piston rod, the first piston rod pushes air towards the second piston rod.

[0016] Preferably, one end of the second piston rod penetrates through the upper end of the air groove of the supporting block, and a spring is connected between the support column and the positioning clamping plate.

[0017] With the above technical solution, after the second piston rod is pushed, the second piston rod drives the positioning clamping plate to slide, so as to facilitate the positioning clamping plate to clamp the raw material.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: the height self-adjusting type workbench for machine vision recognition:

[0019] 1. A limit bracket and an infrared sensor are provided. When the device works, by placing the material in the groove of the supporting block, and then driving the transmission lead screw to rotate through the driving motor, the transmission lead screw drives the first linkage slider and the supporting block to slide upward through the thread. When the raw material blocks the infrared sensor, the infrared sensor will control the driving motor to stop, so as to automatically level the materials of different heights, which is convenient for reducing the focusing time of the recognition camera and improving the efficiency of the detection work, and the position of the infrared sensor can be easily changed through the limit bracket;

[0020] 2. A supporting block and a second linkage slider are provided. When the device works, by placing the material, the material pushes the supporting block to slide down and compress the spring, thereby reducing the impact force on the supporting block. Then the supporting block drives the first magnet to descend and correspond to the second magnet, so that the second magnet is repelled and drives the first piston rod to slide. The first piston rod pushes air towards the second piston rod, which is convenient for the second piston rod to drive the positioning clamping plate to limit the material, thereby improving the stability of the material;

[0021] 3. A second piston rod and a positioning clamping plate are provided. When the device works, by two first magnets simultaneously repelling two second magnets and driving the first piston rod, the second piston rods on both sides respectively drive two positioning clamping plates to slide, so that the symmetric positioning clamping plates are convenient for improving the clamping effect, and the stability of the sliding of the positioning clamping plate is improved through the support column. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic three-dimensional structure diagram of the connection between the support table and the upper positioning frame of the present utility model;

[0023] Figure 2 Schematic three-dimensional structure diagram of the upper positioning frame and the recognition camera of the present utility model;

[0024] Figure 3 Schematic three-dimensional structure diagram of the driving motor and the transmission lead screw of the present utility model;

[0025] Figure 4 Schematic three-dimensional structure diagram of the supporting block and the second linkage slider of the present utility model;

[0026] Figure 5 Schematic three-dimensional structure diagram of the second piston column and the positioning clamping plate of the present utility model;

[0027] Figure 6 Schematic three-dimensional structure diagram of the limit bracket and the infrared sensor of the present utility model.

[0028] In the figure: 1, support table; 2, upper positioning frame; 3, recognition camera; 4, limit bracket; 5, infrared sensor; 6, driving motor; 7, transmission lead screw; 8, first linkage slider; 9, supporting block; 10, second linkage slider; 11, first magnet; 12, second magnet; 13, first piston column; 14, support column; 15, second piston column; 16, positioning clamping plate. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1-6, the present utility model provides a technical solution: a height self-adjusting workbench for machine vision recognition, including a support table 1, an upper positioning frame 2, an identification camera 3, a limit bracket 4, an infrared sensor 5, a driving motor 6, a transmission lead screw 7, a first linkage slider 8, a supporting block 9, a second linkage slider 10, a first magnet 11, a second magnet 12, a first piston rod 13, a support column 14, a second piston rod 15 and a positioning clamp 16. The support table 1 has an upper positioning frame 2 fixedly connected to its upper end. The infrared sensor 5 is arranged on the opposite surfaces of two limit brackets 4, and the two infrared sensors 5 are symmetrically arranged. The transmission lead screw 7 is threadedly connected to the first linkage slider 8. The upper end of the first linkage slider 8 penetrates the bottom surface of the groove of the support table 1, and the upper end of the first linkage slider 8 is fixedly connected to the lower surface of the supporting block 9. When using this device, first place the material in the groove of the supporting block 9, and then drive the transmission lead screw 7 to rotate through the driving motor 6, so that the transmission lead screw 7 drives the first linkage slider 8 and the supporting block 9 to rise through the thread.

[0031] The lower surface of the upper positioning frame 2 is fixedly connected with an identification camera 3. Two limit brackets 4 are fixed on the surface of the upper positioning frame 2. The linkage positioning mechanism includes a second linkage slider 10, which is slidably connected to the bottom surface of the groove of the supporting block 9. The side surface of the lower end of the second linkage slider 10 is fixedly connected with a first magnet 11. Two air grooves are opened in the supporting block 9. The inner wall of the air groove of the supporting block 9 is slidably connected with a first piston rod 13. One end of the first piston rod 13 is fixedly connected with a second magnet 12. A support column 14 is fixed on the inner wall of the groove of the supporting block 9. A positioning clamp 16 is arranged on the outer surface of the support column 14. The side surface of the lower end of the positioning clamp 16 is fixedly connected with a second piston rod 15. Through the rising of the material, the surface of the material blocks the two infrared sensors 5 on both sides, and then the driving motor 6 is stopped through the controller connected to the infrared sensor 5, so as to ensure that the upper ends of the materials are flush when lifting materials at different heights, thus facilitating the rapid focusing of the identification camera 3 and improving the efficiency of the detection work.

[0032] The infrared sensor 5 is fixed on the side surface of the limit bracket 4. The driving motor 6 is fixed on the lower surface of the support table 1. The output end of the driving motor 6 is fixedly connected with a transmission lead screw 7. An opening is arranged on the lower surface of the support table 1, and the inner wall of the opening of the support table 1 is slidably connected with a first linkage slider 8. A groove is arranged on the upper surface of the support table 1, and the inner wall of the groove of the support table 1 is slidably connected with a supporting block 9. A spring is connected between the second linkage slider 10 and the supporting block 9. The two first magnets 11 are symmetrically arranged about the midline of the second linkage slider 10. When placing the material, the second linkage slider 10 is pushed down by the material and compresses the spring. Then the second linkage slider 10 will drive the two first magnets 11 to descend, so that the first magnet 11 repels the second magnet 12, and the first piston rod 13 is driven to slide through the second magnet 12, so that the first piston rod 13 pushes the air towards the second piston rod 15.

[0033] The surface of the supporting block 9 is provided with a groove, and a linkage positioning mechanism is arranged inside the supporting block 9. It drives the first magnet 11 to repel the second magnet 12 through the second linkage slider 10, drives the first piston rod 13 to push the second piston rod 15 to slide with the positioning clamping plate 16. The poles of the opposite ends of the first magnet 11 and the second magnet 12 are the same. A spring is connected between the first piston rod 13 and the inner wall of the air groove of the supporting block 9. One end of the second piston rod 15 penetrates through the upper end of the air groove of the supporting block 9. A spring is connected between the support column 14 and the positioning clamping plate 16. After the second piston rod 15 is pushed by air, it drives the positioning clamping plate 16 to slide, and the support column 14 on the side of the positioning clamping plate 16 is used for stable sliding. After the two positioning clamping plates 16 slide, they clamp and limit the material, so as to maintain the stability of the material during the detection process.

[0034] Working principle: When using this height self-adjusting workbench for machine vision recognition, first place the material in the groove of the supporting block 9, so that the material pushes the second linkage slider 10 to slide down. The second linkage slider 10 drives the first magnet 11 to repel the second magnet 12, so that the second magnet 12 drives the first piston rod 13 to slide, thereby inflating the second piston rod 15 to drive the positioning clamping plate 16 to slide relative to the support column 14, facilitating clamping of the material. The driving motor 6 drives the transmission lead screw 7 to rotate, so that the transmission lead screw 7 drives the first linkage slider 8 and the supporting block 9 to rise through the thread. After the material blocks the infrared sensor 5, it is convenient to control the infrared sensor 5 to stop, facilitating the identification camera 3 to work on the upper end of the material automatically, increasing the overall practicability.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-adjustable height workbench for machine vision recognition, comprising a support table (1), the upper end of which is fixedly connected to an upper positioning frame (2), and the lower surface of the upper positioning frame (2) is fixedly connected to an identification camera (3), characterized in that: Two limit brackets (4) are fixed on the surface of the upper positioning frame (2), an infrared sensor (5) is fixed on the side surface of the limit bracket (4), a driving motor (6) is fixed on the lower surface of the support platform (1), and a transmission screw (7) is fixedly connected to the output end of the driving motor (6), an opening is provided on the lower surface of the support platform (1), and a first linkage slider (8) is slidably connected to the inner wall of the opening of the support platform (1), a groove is provided on the upper surface of the support platform (1), and a supporting block (9) is slidably connected to the inner wall of the groove of the support platform (1), a groove is provided on the surface of the supporting block (9), and a linkage positioning mechanism is provided inside the supporting block (9), which drives the first magnet (11) to repel the second magnet (12) through the second linkage slider (10) to drive the first piston column (13) to push the second piston column (15) and the positioning clamp (16) to slide.

2. A self-adjustable height workbench for machine vision recognition according to claim 1, characterized in that: The infrared sensors (5) are arranged on surfaces of two limiting brackets (4) facing each other, the infrared sensors (5) on both sides are symmetrically arranged, and the transmission lead screw (7) and the first linkage slider (8) are threadedly connected.

3. The self-adjustable height workbench for machine vision recognition according to claim 1, characterized in that: The upper end of the first linkage sliding block (8) passes through the bottom surface of the groove of the support platform (1), and the upper end of the first linkage sliding block (8) is fixedly connected to the lower surface of the supporting block (9).

4. The self-adjustable height workbench for machine vision recognition according to claim 1, characterized in that: The linkage positioning mechanism comprises a second linkage slider (10), the second linkage slider (10) being slidably connected to the bottom surface of the groove of the supporting block (9), a first magnet (11) being fixed to the side surface of the lower end of the second linkage slider (10), two air grooves being provided inside the supporting block (9), a first piston column (13) being slidably connected to the inner wall of the air groove of the supporting block (9), a second magnet (12) being fixed to one end of the first piston column (13), a support column (14) being fixed to the inner wall of the groove of the supporting block (9), a positioning clamping plate (16) being provided on the outer surface of the support column (14), and a second piston column (15) being fixed to the lower end side surface of the positioning clamping plate (16).

5. The self-adjustable height workbench for machine vision recognition according to claim 4, characterized in that: A spring is connected between the second linkage slider (10) and the supporting block (9), and the two first magnets (11) are symmetrically arranged about the midline of the second linkage slider (10).

6. The self-adjustable height workbench for machine vision recognition according to claim 4, characterized in that: The magnetic poles of the first magnet (11) and the second magnet (12) facing each other are the same, and a spring is connected between the first piston column (13) and the inner wall of the air groove of the supporting block (9).

7. The self-adjustable height workbench for machine vision recognition according to claim 4, characterized in that: One end of the second piston column (15) passes through the upper end of the air groove of the support block (9), and a spring is connected between the support column (14) and the positioning clamping plate (16).

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