Portable machine vision practical teaching equipment

Abstract

The utility model relates to portable machine vision practical teaching equipment, which is used for teaching demonstration of identifying physical characteristics of workpieces and automatically sorting the workpieces, and comprises a portable box body, the conveying unit is mounted in the portable box body and is used for conveying workpieces; the visual detection unit is arranged in the portable box body and is used for identifying the physical characteristics of the workpiece; the workpiece storage unit is in lap joint with the portable box body in a working state and is used for receiving the workpiece; the sorting unit is mounted in the portable box body and is used for automatically sorting the workpieces on the conveying unit into the workpiece storage unit; and the controller is mounted in the portable box body and is electrically connected with the conveying unit, the visual detection unit and the sorting unit. According to the utility model, the machine vision teaching equipment is integrated in the portable box body, so that the whole machine teaching equipment is compact in volume, low in cost, portable and flexible, and can be suitable for teaching demonstration in various teaching fields, and the teaching efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special teaching equipment, in particular to a portable machine vision training teaching equipment. Background Art

[0002] As an application system, machine vision has gradually improved with the development of industrial automation. Because machine vision is a non-contact measurement method, it is often used to replace human vision, especially in dangerous environments that are not suitable for direct human operation or where human vision cannot meet the requirements. For example, in large-scale industrial production processes, using human vision to check product quality is inefficient and not very accurate. Using machine vision inspection methods can greatly improve production efficiency and the degree of production automation. Machine vision can identify the physical characteristics of the target object, including shape, color, characters, barcodes, etc., measure the geometric dimensions of the target object, locate the target object's position information, and detect the surface condition of the target object, thereby determining whether there are defects in the product during production, etc.

[0003] At present, the vigorous development of machine vision has made it necessary for colleges and universities to conduct more in-depth teaching in the field of machine vision to adapt to the development of industrial technology. Therefore, in recent years, machine vision technology has been opened in the core courses of automation majors. However, the current machine vision systems are all included in a large-scale mechatronic automation experimental platform. For example, Chinese patent CN213161977U discloses a teaching device for automatic material sorting system, which communicates with the grasping component, the conveying component and the sorting component through the controller to realize the automatic control of sorting different materials. The controller is a PLC controller (such as Siemens S7-200PLC CPU226). Regarding PLC controllers, Chinese patent CN212263902U discloses a PLC-based apple automatic sorting experimental device, which adopts a programmable logic controller (Programmable Logic Controller). A programmable logic controller (PLC) controls the corresponding sorter to automatically sort apples. By simulating the automatic apple sorting process, students can understand the working principles of each module of the automatic sorting experiment device and improve their practical training skills. A PLC is a digital computing controller with a microprocessor used for automated control. It can load control instructions into memory for storage and execution at any time. A programmable controller consists of functional units such as a CPU, instruction and data memory, input / output interfaces, a power supply, and digital-to-analog conversion.

[0004] Due to the high procurement cost of a large-scale mechatronic automated experimental platform, many colleges and universities lack machine vision teaching equipment, making it difficult to carry out machine vision teaching content normally. In addition, most machine vision teaching equipment on the market is large in size, which limits the venue of teaching demonstrations and can only be used in fixed and large test sites. It cannot meet the needs of college teachers to perform demonstration operations in the classroom, resulting in low teaching efficiency. Utility Model Content

[0005] Technical problems to be solved

[0006] The utility model provides a portable machine vision training teaching device. By integrating the machine vision teaching device into a portable box, the machine vision training teaching device is not only compact in overall size and low in cost, but also portable and flexible, and can be adapted to various teaching venues for teaching demonstrations, thereby improving teaching efficiency.

[0007] Technical Solution

[0008] In the first aspect, an embodiment of the present invention proposes a portable machine vision training teaching device for teaching demonstrations of identifying the physical characteristics of workpieces and automatically sorting them, including a portable box; a conveying unit, installed in the portable box and used to convey the workpieces; a visual inspection unit, installed in the portable box and used to identify the physical characteristics of the workpieces placed on the conveying unit; a workpiece storage unit, which, in a working state, is overlapped on the portable box and located outside the portable box, for receiving the workpieces; in a non-working state, the workpiece storage unit is placed in the portable box, and the workpiece storage unit includes a flexible A foldable storage box and a second slide made of a flexible material, the storage box having a plurality of independent storage cavities for receiving the workpieces with different physical characteristics, one end of the second slide docking with the foldable storage box and partially extending into the storage cavity, the other end of the second slide overlaps the portable box and docking with the conveying unit; a sorting unit, installed in the portable box, is used to automatically sort the workpieces on the conveying unit into the workpiece storage unit; a controller, installed in the portable box, is electrically connected to the conveying unit, the visual inspection unit and the sorting unit, respectively, and is used to control the conveying unit and the sorting unit to operate.

[0009] Furthermore, the conveying unit includes a first conveyor belt assembly and a second conveyor belt assembly installed in the portable box, the first conveyor belt assembly and the second conveyor belt assembly are arranged parallel to each other, and the second conveyor belt assembly is docked with the workpiece storage unit; a first slide is docked with the first conveyor belt assembly and the second conveyor belt assembly, and the two ends of the first slide are overlapped with the first conveyor belt assembly and the second conveyor belt assembly respectively, for connecting the first conveyor belt assembly and the second conveyor belt assembly, the first slide and the first conveyor belt assembly and the second conveyor belt assembly are all arranged in a perpendicular relationship or at an angle to each other; a transfer unit is installed in the portable box, and is located on both sides of the first conveyor belt assembly respectively with the first slide, for transferring the workpiece on the first conveyor belt assembly to the first slide.

[0010] Furthermore, the transfer unit includes a pushing cylinder arranged on the first conveyor belt assembly at a side away from the first slide and a first sensor for detecting the position of the workpiece.

[0011] Furthermore, the first conveyor belt assembly includes a first mounting bracket, fixedly mounted in the portable box; a first transparent conveyor belt, wound and mounted on the first mounting bracket; a first drive motor, fixedly mounted on the first mounting bracket and drivingly connected to the first transparent conveyor belt; a second sensor, fixedly mounted on the first mounting bracket, for detecting whether there is the workpiece on the first transparent conveyor belt; and an LED backlight source, fixedly mounted on the first mounting bracket and located below the workpiece to be transported.

[0012] Furthermore, the second conveyor belt assembly includes a second mounting bracket, which is fixedly mounted in the portable box; a conveyor belt, which is wound and mounted on the second mounting bracket; and a second drive motor, which is fixedly mounted on the second mounting bracket and is drivingly connected to the conveyor belt.

[0013] Furthermore, the portable box includes a box base and a box cover hinged to the box base, the box base is hinged to the box cover by a hinge, the conveying unit, the visual inspection unit, the sorting unit and the controller are all arranged on the box base, and the box cover is also provided with a touch screen and a storage net bag for placing the workpiece storage unit.

[0014] Furthermore, the sorting unit includes a support plate fixedly installed in the portable box; at least two groups of sorting cylinder assemblies fixedly installed on the support plate at intervals.

[0015] Furthermore, each of the sorting cylinder assemblies includes a sorting cylinder and a third sensor for detecting the position of the workpiece on the conveying unit.

[0016] Furthermore, a signal indicating unit is provided on the support platform.

[0017] Furthermore, the visual detection unit includes a column, which is fixedly mounted on the base of the portable box; a connecting block, which is fixedly mounted on one end of the column away from the base of the box; a support rod, which is fixedly mounted on the connecting block; a camera, which is fixedly mounted on one end of the support rod away from the connecting block; a camera mounting bracket is provided on the end of the support rod away from the connecting block, the camera is mounted on the camera mounting bracket, and the camera mounting bracket is also equipped with an LED light source.

[0018] (3) Beneficial effects

[0019] In summary, the utility model integrates the machine vision teaching equipment into a portable box, making the machine vision training teaching equipment not only compact in overall size and low in cost, but also portable and flexible, and can be adapted to various teaching venues for teaching demonstrations, thereby improving teaching efficiency.

[0020] Secondly, the utility model uses signal indicator lights of different colors and / or buzzer alarms to remind the operator of the experimental teaching equipment of the operating status of the experimental teaching equipment, thereby improving the quality and effect of teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural diagram of the utility model of portable machine vision training teaching equipment.

[0023] Figure 2 This is another structural diagram of the portable machine vision training teaching equipment of the present utility model.

[0024] Figure 3 This is a structural diagram of the utility model's portable machine vision training teaching equipment in a state where the teaching demonstration is finished.

[0025] Figure 4 It is a structural diagram of the transfer unit of the utility model.

[0026] Figure 5It is a structural schematic diagram of the first conveyor belt assembly of the utility model.

[0027] Figure 6 It is a structural schematic diagram of the second conveyor belt assembly of the utility model.

[0028] Figure 7 It is a structural diagram of the sorting unit of the utility model.

[0029] Figure 8 It is a structural diagram of the visual detection unit of the utility model.

[0030] Figure 9 This is a structural diagram of the connection block of the utility model

[0031] Figure 10 This is a schematic diagram of the assembly structure of the support rod and the camera of the utility model

[0032] Figure 11 It is a structural schematic diagram of the portable box of the utility model in a locked state.

[0033] In the picture:

[0034] 1- portable box; 10- workpiece; 11- box base; 12- box cover; 13- hinge; 14- touch screen; 15- storage net bag; 16- box lock;

[0035] 2-Conveying unit; 21-First conveyor belt assembly; 211-First mounting bracket; 2111-First mounting hole; 2112-Rotating roller; 212-First transparent conveyor belt; 213-First drive motor; 2131-Synchronous pulley; 2132-Synchronous belt; 214-Second sensor; 215-LED backlight; 22-Second conveyor belt assembly; 221-Second mounting bracket; 222-Conveyor belt; 223-Second drive motor; 23-First slide; 24-Transfer unit; 241-Push cylinder; 242-First sensor; 243-Cylinder mounting bracket;

[0036] 3-visual inspection unit; 31-connecting block; 311-first through hole; 312-second through hole; 313-first threaded hole; 314-second threaded hole; 32-column; 34-camera; 35-first screw; 36-second screw; 37-camera mounting bracket; 38-LED light source;

[0037] 4- sorting unit; 40- signal indication unit; 41- support plate; 42- sorting cylinder; 43- third sensor;

[0038] 5-workpiece storage unit; 51-foldable storage box; 52-storage cavity; 53-second slide;

[0039] 6-Controller;

[0040] 7-Micro air compressor;

[0041] 8-Solenoid valve;

[0042] 9-Power module. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments and covers any modifications, replacements, and improvements to the parts, components, and connection methods without departing from the spirit of the present invention.

[0044] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] like Figures 1 to 3 As shown, the utility model relates to a portable machine vision training teaching device for teaching demonstrations of identifying the physical characteristics of workpieces 10 and automatically sorting them. The teaching device includes a portable box 1; a conveying unit 2 installed in the portable box 1 and used to convey the workpieces 10; and a workpiece storage unit 5 installed in the portable box 1 and used to identify the physical characteristics of the workpieces 10 placed on the conveying unit 2, the physical characteristics including shape, size, color, shape integrity, characters, barcodes, QR codes, etc.; and a workpiece storage unit 5, which is in a working state, i.e., a teaching demonstration state (such as Figure 1 As shown), it is connected to the portable box 1 and is located outside the portable box 1. The workpiece storage unit 5 is in a non-working state, that is, after the teaching demonstration is completed (as shown Figure 3 As shown), placed in the portable box 1, specifically, as Figure 1As shown, the workpiece storage unit 5 includes a foldable storage box 51 made of a flexible material and a second slide 53. The foldable storage box 51 is provided with a plurality of independent storage cavities 52, each of which is used to receive workpieces 10 with different physical characteristics. For example, the foldable storage box has three independent storage cavities 52, one of which receives a workpiece 10 with a circular shape, another receives a workpiece 10 with a triangular shape, and another receives an elliptical shape. The second slide 53 is connected to the foldable storage box 51 at one end. The second slide 53 is docked and partially extends into the storage cavity 52, and the other end of the second slide 53 is overlapped on the portable box 1 and docked with the conveying unit 2; and the sorting unit is installed in the portable box 1, and is used to automatically sort the workpiece 10 on the conveying unit 2 into the workpiece storage unit 5; and the controller 6 is installed in the portable box 1, and is electrically connected to the conveying unit 2, the visual inspection unit 3 and the sorting unit 4 respectively, and is used to control the operation of the conveying unit 2 and the sorting unit 4, and the controller 6 is a PLC controller (such as Siemens S7-200PLCCPU226).

[0046] The utility model integrates the machine vision teaching equipment into a portable box, so that the machine vision training teaching equipment is not only compact in overall size and low in cost, but also portable and flexible, and can be adapted to various teaching venues for teaching demonstrations, thereby improving teaching efficiency.

[0047] As a preferred embodiment, Figure 1 and Figure 3As shown, the conveying unit 2 includes a first conveyor belt assembly 21, which is installed in the portable box 1; and a second conveyor belt assembly 22, which is installed in the portable box 1 and is arranged parallel to the first conveyor belt assembly 21, and the second conveyor belt assembly 22 is docked with the workpiece storage unit 5. Specifically, the first conveyor belt assembly 21 and the second conveyor belt assembly 22 are both fixedly mounted on the box base 11 of the portable box 1; and a first slide 23, which is docked with the first conveyor belt assembly 21 and the second conveyor belt assembly 22. Specifically, the two ends of the first slide 23 are respectively overlapped with the first conveyor belt assembly 21 and the second conveyor belt assembly 22 for connecting the first conveyor belt assembly 21 and the second conveyor belt assembly 22. The first conveyor belt assembly 21 and the second conveyor belt assembly 22 provide a conveying channel for the workpiece 10 to be transferred from the first conveyor belt assembly 21 to the second conveyor belt assembly 22, and when the height of the second conveyor belt assembly 22 in the vertical direction is lower than that of the first conveyor belt assembly 21, the first slide 23 is set in an inclined state, and when the height of the second conveyor belt assembly 22 in the vertical direction is the same as that of the first conveyor belt assembly 21, the first slide 23 is set in a horizontal state, and the contact surface between the first slide 23 and the workpiece 10 is smooth, so as to reduce the friction of the workpiece 10 during the transfer process; and the transfer unit 24 is installed in the portable box 1, and is located at the second and third positions of the first slide 23 and the second and third positions of the first slide 23 respectively. The two sides of a conveyor belt assembly 21 are used to transfer the workpiece 10 on the first conveyor belt assembly 21 to the first slide 23. The first slide 23 is arranged in a perpendicular relationship with the first conveyor belt assembly 21 and the second conveyor belt assembly 22, so as to realize the communication between the first conveyor belt assembly 21 and the second conveyor belt assembly 22, so that the workpiece 10 can be transferred to the second conveyor belt assembly 22 through the first slide 23 under the transportation of the first conveyor belt 21. The second conveyor belt assembly 22 is docked with the workpiece storage unit 5 through the second slide 53, so that the workpiece 10 is transferred from the second conveyor belt assembly 22 to the second conveyor belt assembly 22 under the action of the sorting unit 4. The slide 53 is transported to the storage cavity 52 of the foldable storage box 51. It should be noted that the height of the second conveyor belt assembly 22 in the vertical direction is lower than that of the first conveyor belt assembly 21, so that the workpiece 10 can be transferred from the first slide 23 to the second conveyor belt assembly 22 under the action of its own gravity. It should be noted that the height of the second conveyor belt assembly 22 in the vertical direction is the same as that of the first conveyor belt assembly 21, so that when the pushing cylinder 241 on the transfer unit 24 meets the longer movement stroke, the pushing cylinder 241 can also be directly used to push the workpiece 10 from the first conveyor belt assembly 21 to the second conveyor belt assembly 22 via the first slide 23.

[0048] As another preferred embodiment, Figure 1 、 Figure 3 and Figure 4As shown, the transfer unit 24 includes a pushing cylinder 241 arranged on the side of the first conveyor belt assembly 21 away from the first slide 23 and a first sensor 242 for detecting the position of the workpiece 10. Specifically, the pushing cylinder 241 is fixed in the portable box 1 through a cylinder mounting bracket 243, and the first sensor 242 is fixed on the cylinder mounting bracket 243. After the first sensor 242 detects the workpiece 10 on the first conveyor belt assembly 21, the controller 6 controls the first conveyor belt assembly 21 to stop moving, and then controls the pushing cylinder 241 to push the workpiece 10 from the first conveyor belt assembly 21 to the first slide 23 or directly to the second conveyor belt assembly 22. The first sensor 242 can be a photoelectric sensor or a displacement sensor.

[0049] As another optional implementation.

[0050] Preferably, if Figure 1 and Figure 5As shown, the first conveyor belt assembly 21 includes a first mounting bracket 211, which is fixedly mounted in the portable box 1. Specifically, the first mounting bracket 211 has a plurality of first mounting holes 2111, and the first mounting bracket 211 is fixed to the box base 11 of the portable box 1 by screws passing through the first mounting holes 2111; and a first transparent conveyor belt 212, which is wound and mounted on the first mounting bracket 211. Specifically, the first mounting bracket 211 is provided with two rotating rollers 2112 for winding the first transparent conveyor belt 212, and at least one of the two rotating rollers 2112 is configured to be movable and used for adjusting The distance between the two rotating rollers 2112 is adjusted to achieve the tensioning of the first transparent conveyor belt 212. The distance adjustment method between the two rotating rollers is a common method in the prior art and will not be repeated here. The first driving motor 213 is fixedly mounted on the first mounting bracket 211 and is driven and connected to the first transparent conveyor belt 212. Specifically, the driving end of the first driving motor 213 and the rotating roller 2112 of the first mounting bracket 211 are respectively connected to a synchronous wheel 2131, and the two synchronous wheels 2131 are wound on a synchronous belt 2132. The synchronous belt 2132 is used to enable the first driving motor 213 to drive the first transparent conveyor belt 212. The transparent conveyor belt 212 rotates, thereby realizing the conveyance of the workpiece 10; the second sensor 214 is fixedly mounted on the first mounting bracket 211, and is used to detect whether there is a workpiece 10 on the first transparent conveyor belt 212. Specifically, the second sensor 214 detects that there is a workpiece 10 on the first transparent conveyor belt 212, and the controller 6 controls the first drive motor 213 to drive the first transparent conveyor belt 212 to rotate. The second sensor 214 can be a photoelectric sensor or a displacement sensor; and the LED backlight source 215 is fixedly mounted on the first mounting bracket 211 and is located below the workpiece 10 to be conveyed. An LED backlight source 215 is provided on a mounting bracket 211 and inside the annular first transparent conveyor belt 212, which can enhance the illumination of the workpiece 10 in a demonstration environment, thereby improving the image clarity of the workpiece 10 obtained by the camera 34 of the visual inspection unit 3, which is conducive to the rapid identification of the physical characteristics of the workpiece 10. Specifically, when the first transparent conveyor belt 212 transports the workpiece 10 to the top of the LED backlight source 215, the LED backlight source 215 is triggered to light up. The triggering method can be triggered by a controller after an additional position sensor detects that the workpiece is in place. This method is a prior art and will not be repeated here.

[0051] Preferably, if Figure 1 and Figure 6As shown, the second conveyor belt assembly 22 includes a second mounting bracket 221, which is fixedly mounted in the portable box 1. Specifically, the structural appearance of the second mounting bracket 221 and the mounting method with the portable box 1 are the same as the structural appearance and mounting method of the first mounting bracket 211, which will not be repeated here; and a conveyor belt 222, which is wound and mounted on the second mounting bracket 221. Specifically, the conveyor belt 222 can be a transparent conveyor belt or a non-transparent conveyor belt; and a second drive motor 223, which is fixedly mounted on the second mounting bracket 221 and is driven and connected to the conveyor belt 222. Specifically, the driving method of the second drive motor 223 driving the conveyor belt 222 is the same as the driving method of the first drive motor 213 driving the transparent conveyor belt 212, both of which are driven by using a synchronous wheel and a synchronous belt, which will not be repeated here.

[0052] Preferably, if Figures 1 to 3 and Figure 11 As shown, the portable box 1 includes a box base 11 and a box cover 12 hinged to the box base 11. Specifically, the box base 11 is hinged to the box cover 12 through a hinge 13, and a box lock 16 is provided on the outer surface of the box base 11 and a handle for carrying is provided on the box cover 12 (not shown in the figure), which is used to lock the box cover 12 and the box base 11 after they are closed. The conveying unit 2, the visual inspection unit 3, the sorting unit 4 and the controller 6 are all arranged on the box base 11, and the box cover 12 is also provided with a A touch screen 14 and a storage net bag 15 for placing the workpiece storage unit 5, the storage net bag 15 is used to store the foldable storage box 51 and to hang the second slide 53 and the workpiece 10 in a non-working state. In order to avoid the second slide 53 from colliding and interfering with other internal mechanical parts or electronic components of the teaching equipment when the portable box 1 is closed, the second slide 53 can be partially accommodated in the storage net bag 15, and a power module 9 for providing power to the conveying unit 2, the visual inspection unit 3, the sorting unit 4 and the controller 6 is also provided on the base 11 of the box.

[0053] Preferably, if Figure 1 、 Figure 2 and Figure 7As shown, the sorting unit 4 includes a support plate 41, which is fixedly installed in the portable box 1. Specifically, the support plate 41 is fixedly installed on the box base 11 of the portable box 1; and at least two groups of sorting cylinder assemblies, which are fixedly installed on the support plate 41 at intervals. Specifically, the at least two groups of sorting cylinder assemblies include three groups of sorting cylinder assemblies, which are fixedly installed on the support plate 41 at even intervals, and are respectively used to push the corresponding workpieces 10 after identification into the corresponding storage cavities 52 on the foldable storage box 51 of the workpiece storage unit 5. For example, the three groups of sorting cylinder assemblies pre-set the sorting objects of each sorting cylinder assembly according to the shape of the workpiece 10 demonstrated in teaching, such as the first group of sorting cylinder assemblies for sorting circular workpieces, the second group of sorting cylinder assemblies for sorting triangular workpieces, and the third group of sorting cylinder assemblies for sorting elliptical workpieces, using the visual inspection unit 3. The camera 34 captures an image of the appearance of the workpiece 10, thereby identifying the external structure of the workpiece. The controller 6 controls one group of sorting cylinder assemblies to move, and the other sorting cylinder assemblies to not move, so as to avoid disordered operation of the sorting cylinder assemblies and affect the effect of the teaching demonstration. It should be noted that the movement and non-movement of the sorting cylinder assembly are achieved by controlling the connection and disconnection of the air path of the sorting cylinder assembly. Specifically, a micro air compressor 7 and a solenoid valve 8 connected to the micro air compressor 7 are also provided on the box base 11 of the portable box 1. The solenoid valve 8 is respectively connected to the sorting cylinder 42 of each sorting cylinder assembly through a pipeline. The solenoid valve 8 is controlled by the controller 6 to realize the connection and disconnection of the air path between the micro air compressor 7 and the sorting cylinder 42, so that the movement of each sorting cylinder 42 can be controlled separately. The above control method is a prior art and will not be repeated here.

[0054] Preferably, if Figure 7As shown, each of the sorting cylinder assemblies includes a sorting cylinder 42 and a third sensor 43 for detecting the position of the workpiece 10 on the conveying unit 2. Specifically, each sorting cylinder assembly includes a sorting cylinder 42 and a third sensor 43 arranged near the sorting cylinder 42. After the third sensor 43 detects that the workpiece 10 on the second transmission belt assembly 22 of the conveying unit 2 is in place, the controller 6 controls the sorting cylinder 42 to move and push the workpiece 10 into the corresponding storage cavity 52 on the foldable storage box 51 of the workpiece storage unit 5. The third sensor 43 can be a photoelectric sensor. device or displacement sensor, and a signal indication unit 40 is provided on the bracket table 41. The signal indication unit 40 has two reminder functions and uses different sounds or different colors of light to remind respectively. Specifically, the signal indication unit 40 can be a signal indicator light and / or a buzzer alarm. When the entire portable machine vision training teaching equipment is in normal operation, the signal indication unit 40 emits green light. When the entire portable machine vision training teaching equipment is in abnormal operation, that is, an operational failure occurs, the signal indication unit 40 emits red light and / or a rapid buzzer sound.

[0055] Preferably, if Figures 8 to 10 As shown, the visual inspection unit 3 includes a column 32, which is fixedly mounted on the box base 11; and a connecting block 31, which is fixedly mounted on the end of the column 32 away from the box base 11. Specifically, the connecting block 31 is provided with a first through hole 311 for the column 32 to pass through and a second through hole 312 for the support rod 33 to pass through. The connecting block 31 is also provided with a first threaded hole 313 and a second threaded hole 314 respectively connected to the first through hole 311 and the second through hole 312. The connecting block 31 is locked on the column 32 by a first screw 35 passing through the first threaded hole 313 and extending into the first through hole 311; and the support rod 33 , fixedly mounted on the connecting block 31, specifically, one end of the support rod 33 passes through the connecting block 31 and passes through the second threaded hole 314 through the second screw 36 and extends into the second through hole 312 to lock the support rod 33 on the connecting block 31; and a camera 34, fixedly mounted on the end of the support rod 33 away from the connecting block 31, specifically, a camera mounting bracket 37 is provided on the end of the support rod 33 away from the connecting block 31, the camera 34 is mounted on the camera mounting bracket 37, and the camera mounting bracket 37 is also equipped with an LED light source 38, which is used to provide lighting brightness to the workpiece 10, so as to improve the image quality of the workpiece 10 acquired by the camera 34.

[0056] It should be noted that the various embodiments in this specification are described in a progressive manner. References to the same or similar parts between the various embodiments are sufficient. Each embodiment focuses on the differences from the other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the figures. Furthermore, for the sake of brevity, detailed descriptions of known methods and techniques are omitted here.

[0057] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art without departing from the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of the claims of the present application.

Claims

1. A portable machine vision training teaching device for teaching and demonstrating the recognition of physical features of workpieces (10) and automatic sorting, characterized in that: include Portable case (1); A conveying unit (2) installed in the portable box (1) and used for conveying the workpiece (10); a visual inspection unit (3) installed in the portable case (1) and used to identify physical features of the workpiece (10) placed on the conveying unit (2); A workpiece storage unit (5), wherein in a working state, the workpiece storage unit (5) is overlapped on the portable box (1) and is located outside the portable box (1); in a non-working state, the workpiece storage unit (5) is placed inside the portable box (1); A sorting unit (4) installed in the portable box (1) and used for automatically sorting the workpieces (10) on the conveying unit (2) into the workpiece storage unit (5); A controller (6) is installed in the portable box (1) and is electrically connected to the conveying unit (2), the visual detection unit (3) and the sorting unit (4) respectively, and is used to control the conveying unit (2) and the sorting unit (4) to perform operations.

2. The portable machine vision training teaching equipment according to claim 1 is characterized in that: The conveying unit (2) comprises A first conveyor belt assembly (21) installed in the portable box (1); A second conveyor belt assembly (22) is installed in the portable box (1) and is arranged parallel to the first conveyor belt assembly (21), and the second conveyor belt assembly (22) is docked with the workpiece storage unit (5); A first slide (23) connected to the first conveyor belt assembly (21) and the second conveyor belt assembly (22); A transfer unit (24) is installed in the portable case (1) and is located on both sides of the first conveyor belt assembly (21) together with the first slide (23), and is used to transfer the workpiece (10) on the first conveyor belt assembly (21) to the first slide (23).

3. The portable machine vision training teaching equipment according to claim 2 is characterized in that: The transfer unit (24) comprises a pushing cylinder (241) arranged on the first conveyor belt assembly (21) at a side away from the first slide (23) and a first sensor (242) for detecting the position of the workpiece (10).

4. The portable machine vision training teaching equipment according to claim 2 is characterized in that: The first conveyor belt assembly (21) comprises A first mounting bracket (211) fixedly mounted in the portable box (1); A first transparent conveyor belt (212) is wound and mounted on the first mounting bracket (211); A first driving motor (213) is fixedly mounted on the first mounting bracket (211) and drivingly connected to the first transparent conveyor belt (212); a second sensor (214), fixedly mounted on the first mounting bracket (211), and used for detecting whether the workpiece (10) is on the first transparent conveyor belt (212); An LED backlight source (215) is fixedly mounted on the first mounting bracket (211) and is located below the workpiece (10) to be transported.

5. The portable machine vision training teaching equipment according to claim 2 is characterized in that: The second conveyor belt assembly (22) includes A second mounting bracket (221) is fixedly mounted in the portable box (1); A conveyor belt (222) is wound and mounted on the second mounting bracket (221); A second driving motor (223) is fixedly mounted on the second mounting bracket (221) and drivingly connected to the conveying belt (222).

6. The portable machine vision training teaching equipment according to claim 1 is characterized in that: The portable box (1) comprises a box base (11) and a box cover (12) hinged to the box base (11); the conveying unit (2), the visual inspection unit (3), the sorting unit (4) and the controller (6) are all arranged on the box base (11); and the box cover (12) is also provided with a touch screen (14) and a storage net bag (15) for placing the workpiece storage unit (5).

7. The portable machine vision training teaching equipment according to claim 1 is characterized in that: The sorting unit (4) comprises A support platform (41) fixedly mounted in the portable box (1); At least two groups of sorting cylinder assemblies are fixedly installed on the support platen (41) at intervals.

8. The portable machine vision training teaching equipment according to claim 7 is characterized in that: Each of the sorting cylinder assemblies comprises a sorting cylinder (42) and a third sensor (43) for detecting the position of the workpiece (10) on the conveying unit (2).

9. The portable machine vision training teaching device according to claim 7, characterized in that: The support platform (41) is also provided with a signal indicating unit (40).

10. The portable machine vision training teaching equipment according to claim 1, characterized in that: The visual detection unit (3) comprises A column (32) fixedly mounted on a box base (11) of the portable box (1); A connecting block (31) is fixedly mounted on the column (32) at one end away from the box base (11); A support rod (33) fixedly mounted on the connecting block (31); A camera (34) is fixedly mounted on an end of the support rod (33) away from the connecting block (31).

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