Visual inspection equipment for automobile parts

Abstract

The invention relates to the technical field of automobile parts, in particular to visual inspection equipment for automobile parts. The device comprises a detection device body, a base is arranged in the detection device body, a detection conveying device is arranged at the top of the base, an annular conveying device is arranged on one side of the detection conveying device, and a guardrail is arranged between the detection conveying device and the top of the annular conveying device; an intercepting device and a steering device are arranged in the guardrail and located at the top of the detection conveying device, and an image acquisition device is arranged at the top of the base and located over the detection conveying device. A detection conveying device is arranged to be a three-section independent speed control conveying device and is driven by a first motor, a second motor and a third motor respectively, and meanwhile, image acquisition equipment is linked with a speed control system, so that the equipment can dynamically adjust the conveying speed of each section according to the types of parts; the problems of smear of high-precision components and low efficiency of conventional components caused by fixed speed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, in particular to a visual inspection device for automobile parts. Background Art

[0002] Visual inspection equipment uses machine vision technology to form an image acquisition unit through industrial cameras, optical lenses and light source systems. It takes real-time photos of target objects and then transmits the acquired images to a computer system for processing and analysis using traditional visual algorithms or deep learning models (such as convolutional neural networks), thereby achieving automated detection of object appearance defects, dimensional accuracy, assembly status, etc. Intelligent equipment.

[0003] Due to the wide variety of automotive parts and their stringent performance requirements, from engine blocks to electronic components, any minor defects may cause vehicle failure or even safety hazards. Visual inspection equipment is needed to accurately identify surface scratches, cracks, dimensional deviations, assembly misalignments and other problems of components to avoid missed inspections and misjudgments caused by fatigue and subjective judgment of manual inspections.

[0004] In existing automotive parts visual inspection technology, when multiple parts need to be inspected on the same production line, the conveyor belt speed is usually set to a fixed value. This method has significant technical defects: for high-precision parts (such as PCB electronic components), the fixed speed can easily exceed the image acquisition adaptation range of their dynamic inspection, resulting in motion artifacts interfering with defect identification; and for parts with strong speed adaptability, such as tires, a fixed low speed will cause redundancy in the production line beat, resulting in low overall inspection efficiency. In addition, it is not convenient to return parts for re-inspection in a timely manner for quality inspection problems caused by imaging. It is also not convenient to set a dynamic adaptation mechanism according to the inspection characteristics of different parts, making it difficult to meet the image quality requirements of high-precision parts while maintaining high-speed inspection of conventional parts.

[0005] To this end, we propose a visual inspection device for automobile parts. Summary of the Invention

[0006] The present invention provides a visual inspection device for automotive parts. The device comprises a three-stage inspection conveyor with independently controlled speeds, an interception device for controlling component spacing, a steering device, and a ring-shaped conveyor to enable reflow re-inspection of defective components. Furthermore, an image acquisition device and a speed control system are used to adjust the conveying speed of each stage in a coordinated manner. This allows the device to dynamically adapt the conveying speed according to component type, accurately control the component inspection spacing, and perform secondary inspection on components with abnormal imaging, thereby solving the problems raised in the above-mentioned background art, namely: The fixed conveying belt speed when detecting multiple components on the same production line causes high-precision components to appear trailing due to too high speed, conventional components to affect efficiency due to too low speed, and technical defects such as inability to return problem components in time for re-detection and difficulty in setting a dynamic adaptive mechanism according to component characteristics.

[0007] To achieve the above object, the present application provides the following technical scheme: A visual detection equipment for automobile components, comprising a detection equipment body, a base is arranged inside the detection equipment body, a detection conveying device is arranged on the top of the base, an annular conveying device is arranged on one side of the detection conveying device, a guardrail is arranged between the top of the detection conveying device and the annular conveying device; Intercepting devices and steering devices are arranged inside the guardrail at the top of the detection conveying device, and an image acquisition equipment is arranged on the top of the base directly above the detection conveying device; The detection conveying device is used for individual speed control according to the detection result of the image acquisition equipment, the intercepting device is used for controlling the spacing of components entering the detection conveying device, and the steering device is used for controlling the direction of the components.

[0008] Preferably, one end of the detection conveying device is provided with an inlet conveying device, the other end of the detection conveying device is provided with an outlet conveying device, the intercepting device is close to the inlet conveying device, and the steering device is close to the outlet conveying device.

[0009] Preferably, a waiting conveying assembly is arranged between the outer wall of the detection conveying device and the inlet conveying device, and the end of the driving roller of the waiting conveying assembly is fixedly connected with a No. 5 motor.

[0010] Preferably, the detection conveying device comprises three section conveying devices, and the driving rollers of the three section conveying devices are fixedly connected with a No. 1 motor, a No. 2 motor and a No. 3 motor respectively.

[0011] Preferably, the annular conveying device comprises a long-distance conveying assembly, both ends of the long-distance conveying assembly are provided with a bending moment conveying assembly, and a short-distance conveying assembly is arranged between the end of the bending moment conveying assembly and the outer wall of the conveying device.

[0012] Preferably, one of the bending moment conveying assemblies is provided with a pressure sensor, and the ends of the driving rollers of the long-distance conveying assembly, the bending moment conveying assembly and the short-distance conveying assembly are fixedly connected with a No. 4 motor.

[0013] Preferably, the intercepting device comprises an arc plate, the arc plate is arranged on the top of the conveying device, the inner wall of the arc plate is fixedly connected with a support plate, the end of the support plate is fixedly connected with a rotating roller, the rotating roller is movably connected inside the guardrail, and the top of the rotating roller is fixedly connected with a No. 6 motor.

[0014] Preferably, the guardrail is provided with a gap between the short-distance conveying assembly and the conveying device, a turning device is arranged between one of the gaps, and the guardrail at the other gap is provided with a slope structure; the guardrail is provided with a gap between the waiting conveying assembly and the conveying device, and the gap is designed as a slope.

[0015] Preferably, the turning device comprises a baffle arranged at one of the gaps of the guardrail, a hinge is arranged between the baffle and the guardrail, an end head is fixedly connected to an outer wall of the baffle, and a gas cylinder is fixedly connected to an end of the end head.

[0016] Preferably, a speed control system is arranged between the image acquisition device and the second motor and the third motor, a control system is arranged between the image acquisition device and the gas cylinder; the fourth motor, the inlet conveying device and the outlet conveying device rotate at the same speed; and a speed control system is arranged between the pressure sensor and the first motor and the fifth motor.

[0017] Compared with the prior art, the present application has the following beneficial effects: 1. In the visual detection equipment for automobile parts, the detection conveying device is designed as a three-section independent speed control conveying device, and is driven by the first motor, the second motor and the third motor respectively; meanwhile, the image acquisition device is connected with the speed control system, so that the equipment can dynamically adjust the conveying speed of each section according to the type of the parts, thereby solving the problem of low efficiency of high-precision parts caused by fixed speed.

[0018] 2. In the visual detection equipment for automobile parts, the interval of the parts entering the detection area is dynamically controlled according to the size of the parts through the intercepting device, so as to ensure that the parts pass through the detection area in an orderly interval and avoid detection overlap or accumulation caused by improper interval; when the image acquisition device detects an abnormality, the turning device is used to turn and guide the problem part into the ring-shaped conveying device for backflow re-inspection, so as to form a closed-loop re-inspection path, thereby solving the problem that the parts cannot be returned in time for re-inspection in the prior art.

[0019] 3. In the visual detection equipment for automobile parts, the image acquisition device is connected with the speed control system, and the load of the ring-shaped conveying device is monitored by the pressure sensor, so as to realize real-time adjustment of the conveying speed and stability control of the conveying, thereby avoiding detection errors caused by speed mismatch or abnormal load; and through the independent speed control design of the three-section conveying device, the flexible backflow structure of the ring-shaped conveying device and the slope guiding design of the guardrail, the equipment can adapt to the detection requirements of various parts, can quickly switch the detection varieties without stopping, and the production line flexibility and compatibility are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2Schematic diagram of detection conveying structure of the present application; Figure 3 Schematic diagram of conveying path of the present application; Figure 4 Schematic diagram of guardrail exploded structure of the present application; Figure 5 Schematic diagram of detection conveying device structure of the present application; Figure 6 Schematic diagram of ring conveying device structure of the present application; Figure 7 Schematic diagram of turning device structure of the present application; Figure 8 Schematic diagram of intercepting device structure of the present application; Figure 9 Schematic diagram of conveying flow structure of the present application.

[0021] In the drawings, the components represented by each reference numeral are listed as follows: 1, base; 11, image acquisition device; 12, detection conveying device; 120, conveying device; 121, No. 1 motor; 122, No. 2 motor; 123, No. 3 motor; 13, ring conveying device; 130, long-distance conveying assembly; 131, bending moment conveying assembly; 132, short-distance conveying assembly; 133, pressure sensor; 134, No. 4 motor; 14, guardrail; 15, waiting conveying assembly; 150, No. 5 motor; 16, intercepting device; 160, arc plate; 161, support plate; 162, turning roller; 163, No. 6 motor; 17, turning device; 170, baffle; 171, hinge; 172, end head; 173, air cylinder; 2, inlet conveying device; 3, outlet conveying device. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. EMBODIMENT

[0023] At present, when detecting multiple components on the same production line, the fixed speed of the conveying belt leads to the following technical defects: high-precision components appear trailing due to too fast speed, conventional components affect efficiency due to too slow speed, and it is difficult to set a dynamic adaptive mechanism according to the characteristics of the components; please refer toFigures 1-9 The visual inspection equipment for an automobile part comprises an inspection equipment body, a base 1 arranged in the inspection equipment body, a detection conveying device 12 arranged on the top of the base 1, a ring conveying device 13 arranged on one side of the detection conveying device 12, and a guardrail 14 arranged between the detection conveying device 12 and the top of the ring conveying device 13. An intercepting device 16 and a steering device 17 are arranged in the guardrail 14 and located on the top of the detection conveying device 12 respectively, and an image acquisition equipment 11 is arranged on the top of the base 1 and located above the detection conveying device 12. The detection conveying device 12 is used for controlling the speed of the part according to the detection result of the image acquisition equipment 11, the intercepting device 16 is used for controlling the interval of the part entering the detection conveying device 12, and the steering device 17 is used for controlling the direction of the part.

[0024] Specifically, referring to Figure 3 As shown in the figure, one end of the detection conveying device 12 is provided with an inlet conveying device 2, the other end of the detection conveying device 12 is provided with an outlet conveying device 3, the intercepting device 16 is arranged close to the inlet conveying device 2, and the steering device 17 is arranged close to the outlet conveying device 3.

[0025] Firstly, the inlet conveying device 2 continuously conveys the part to the front end of the detection conveying device 12, at this time, the intercepting device 16 close to the inlet is started, the interval of the part entering the detection conveying device 12 is controlled through the mechanical blocking and releasing action, and it is ensured that the part enters the detection area in an orderly rhythm; the three-section conveying device 120 in the detection conveying device 12 can independently control the speed according to the detection requirement of the image acquisition equipment 11, when detecting high-precision parts, the speed of the corresponding section is automatically reduced to avoid trailing, when detecting conventional parts, the high-speed operation is maintained, and dynamic speed adaptation is realized; when the part completes the visual inspection through the detection conveying device 12, the steering device 17 close to the outlet executes the action according to the detection result of the image acquisition equipment 11: if the part is qualified, the steering device 17 keeps the pass-through state, and the part is directly output through the outlet conveying device 3; if the part causes imaging abnormality or has defects due to speed matching problem, the steering device 17 is switched to the shunt state, and the part is guided to the ring conveying device 13 for backflow re-inspection.

[0026] Referring to Figure 2 As shown in the figure, a waiting conveying assembly 15 is arranged between the outer wall of the detection conveying device 12 and the inlet conveying device 2, and the end of the driving roller of the waiting conveying assembly 15 is fixedly connected with a No. 5 motor 150.

[0027] When the entrance conveying device 2 continuously conveys the components to the waiting conveying assembly 15, the No. 5 motor 150 drives the driving rollers of the waiting conveying assembly 15 to run, forming a buffer interval; at this time, the waiting conveying assembly 15 realizes the temporary storage and rhythm control of the components through the speed regulation of the No. 5 motor 150 according to the real-time speed of the detection conveying device 12 and the spacing control requirement of the intercepting device 16; if the detection conveying device 12 is in a low-speed detection high-precision component state, the No. 5 motor 150 slows down or stops running, so that the components are temporarily left on the waiting conveying assembly 15, avoiding the accumulation of components due to too fast entrance speed; if the detection conveying device 12 switches to high-speed mode, the No. 5 motor 150 speeds up the running, and cooperates with the intercepting device 16 to release the components into the detection area at a set spacing.

[0028] In implementation, referring to Figure 5 , the detection conveying device 12 includes three-section conveying device 120, and the driving rollers of the three-section conveying device 120 are fixedly connected with No. 1 motor 121, No. 2 motor 122 and No. 3 motor 123 respectively.

[0029] When the image acquisition equipment 11 performs visual detection on the components conveyed to the detection area, the system sends adjustment instructions to the corresponding motor through the speed control system according to the type of the components.

[0030] Referring to Figure 6 , the ring conveying device 13 includes long-distance conveying assembly 130, and both ends of the long-distance conveying assembly 130 are provided with curved conveying assemblies 131, and the curved conveying assemblies 131 are provided with short-distance conveying assemblies 132 between the end portions and the outer walls of the conveying device 120.

[0031] One of the curved conveying assemblies 131 is internally provided with a pressure sensor 133, and the driving rollers of the long-distance conveying assembly 130, the curved conveying assemblies 131 and the short-distance conveying assemblies 132 are fixedly connected with No. 4 motor 134.

[0032] Through the cooperation of the long-distance conveying assembly 130, the curved conveying assemblies 131 and the short-distance conveying assemblies 132, a closed-loop return flow path is constructed under the driving of the No. 4 motor 134; when the steering device 17 guides the components with imaging abnormalities or defects into the ring conveying device 13, the long-distance conveying assembly 130 conveys the components along a straight line under the driving of the No. 4 motor 134, and the curved conveying assemblies 131 at both ends are driven to turn through the No. 4 motor 134, so that the components return to the first section of the detection conveying device 12 through the short-distance conveying assemblies 132; In addition, the load status of the return components is monitored in real time through the pressure sensor 133 in one of the bending moment transmission components 131. When it is detected that the components are piled up, an adjustment signal is sent to the No. 1 motor 121 and the No. 5 motor 150 to jointly reduce the operating speed of the first section of the conveying device 120 and the waiting conveying component 15 to avoid the accumulation of components due to blockage of the return path, and ensure that the component flow at the entrance of the conveying device 12 is dynamically matched with the return rhythm.

[0033] Also, see Figure 8 As shown, the intercepting device 16 includes an arc plate 160, which is located at the top of the conveying device 120. The inner wall of the arc plate 160 is fixedly connected to a support plate 161, and the end of the support plate 161 is fixedly connected to a roller 162. The roller 162 is movably connected to the inside of the guardrail 14, and the top of the roller 162 is fixedly connected to a No. 6 motor 163.

[0034] The roller 162 is driven to rotate inside the guardrail 14 by the No. 6 motor 163, and the roller 162 drives the arc plate 160 to rotate or swing on the top of the conveyor 120 through the support plate 161, thereby blocking and releasing the components; when the inspection conveyor 12 needs to control the spacing between components, the No. 6 motor 163 drives the roller 162 to rotate, and the arc plate 160 is lowered to the upper surface of the conveyor belt through the support plate 161, forming a mechanical blockage, temporarily intercepting the components delivered by the entrance conveyor 2 or the waiting conveyor assembly 15; when the inspection conveyor 12 is in a state where it can receive components, the No. 6 motor 163 drives the roller 162 in the reverse direction, driving the arc plate 160 to rise away from the conveyor belt, releasing the components to enter the inspection conveyor 12; The arc structure of the arc plate 160 can cover components of different widths. The rotation angle of the arc plate 160 is adjusted by the No. 6 motor 163, and the arc surface can form a fitting block with the upper surface of components of different sizes; for small-sized components, the middle section of the arc is used for precise interception; for large-sized components, the two ends of the arc are used to expand the blocking range, avoiding the problem of small components being missed and large components being stuck due to the fixed width of the straight plate interception.

[0035] See also Figure 2 、 Figure 4 and Figure 7 As shown, the guardrail 14 is provided with a gap between the short-distance transmission component 132 and the transmission device 120, a steering device 17 is provided between one of the gaps, and the guardrail 14 at the other gap is set as a slope structure. The guardrail 14 is provided with a gap between the waiting transmission component 15 and the transmission device 120, and the guardrail 14 in the gap is designed as a slope.

[0036] The turning device 17 comprises a baffle 170 located at one of the gaps of the guardrail 14, a hinge 171 is arranged between the baffle 170 and the guardrail 14, an end 172 is fixedly connected to the outer wall of the baffle 170, and a pneumatic cylinder 173 is fixedly connected to the end of the end 172.

[0037] When the image acquisition device 11 detects that the component is qualified, the control system sends an instruction to the pneumatic cylinder 173, the piston rod of the pneumatic cylinder 173 retracts, the baffle 170 is pulled upward around the hinge 171 through the end 172 to make the baffle 170 adhere to the inner wall of the guardrail 14 to form a straight-through passage, and the component is directly output through the outlet conveying device 3; when it is detected that the component causes imaging abnormality or has defects due to speed matching problems, the piston rod of the pneumatic cylinder 173 extends, the baffle 170 is pushed downward around the hinge 171 through the end 172, the baffle 170 is lowered to the center of the gap, the original output path of the component is blocked, and the component is guided into the short-distance conveying assembly 132 of the ring-shaped conveying device 13 by using the inclined surface structure at the gap of the guardrail 14 to realize backflow re-inspection.

[0038] Referring to Figure 9 It is shown that a speed control system is arranged between the image acquisition device 11 and the second motor 122 and the third motor 123, and a control system is arranged between the image acquisition device 11 and the pneumatic cylinder 173; the fourth motor 134, the inlet conveying device 2 and the outlet conveying device 3 rotate at the same speed; and a speed control system is arranged between the pressure sensor 133 and the first motor 121 and the fifth motor 150.

[0039] Working principle: Firstly, the component enters the detection conveying device 12 through the inlet conveying device 2, and simultaneously, the fifth motor 150 drives the driving roller of the waiting conveying assembly 15 to rotate; when the detection conveying device 12 is in a low-speed detection high-precision component state, if the component is blocked, the component is extruded into the inside of the waiting conveying assembly 15 through the inclined surface design of the baffle 170, and simultaneously, the fifth motor 150 is reduced in speed or paused to make the component temporarily stay on the waiting conveying assembly 15; when the detection conveying device 12 is switched to a high-speed mode, the fifth motor 150 is operated to cooperate with the intercepting device 16 to release the component into the detection area at a set interval; At this time, the intercepting device 16 drives the rotating roller 162 to rotate through the sixth motor 163 to drive the arc plate 160 to swing on the top of the conveying device 120, blocks the component to control the interval when it is lowered, and releases the component when it is raised, the arc-shaped structure of the arc plate 160 is adapted to different sizes of components to avoid missing small components and blocking large components; Since the three-section conveying device 120 of the detection conveying device 12 is independently driven by the first motor 123, the second motor 123 and the third motor 123, a segmented speed control structure is formed; the component enters the first section conveying device 120 through the intercepting device 16, the first motor 121 transports the component to the middle section detection area at a medium speed; the middle section conveying device 120 is driven by the second motor 122, and at the same time, the image acquisition equipment 11 performs visual detection on the component conveyed to the middle section, analyzes whether the image has abnormality such as trailing shadow, if high-precision components or image abnormality are detected, the system controls the second motor 122 to reduce the rotating speed, so as to avoid motion trailing shadow, and when the normal component is detected, the high-speed operation is maintained; the tail section conveying device 120 is driven by the third motor 123, and runs at a slow speed, so as to facilitate the buffer and prolong the image detection time; When the component completes the visual detection through the detection conveying device 12, the turning device 17 performs the action according to the detection result of the image acquisition equipment 11; if the component is qualified, the control system sends the instruction to the cylinder 173, the piston rod of the cylinder 173 is retracted, the end 172 pulls the baffle 170 to rotate upward around the hinge 171, and the straight-through passage is formed by abutting the inner wall of the guardrail 14, and the component is directly output through the outlet conveying device 3; if the component has imaging abnormality or defects due to the speed matching problem, the piston rod of the cylinder 173 is extended, the baffle 170 is pushed to rotate downward around the hinge 171 to the center of the gap, the original output path is blocked, and the component is introduced into the ring conveying device 13 by using the inclined surface structure at the gap of the guardrail 14; The ring conveying device 13 drives the long-distance conveying assembly 130, the bending conveying assembly 131 and the short-distance conveying assembly 132 through the fourth motor 134, and constructs a closed loop return flow path; the component is conveyed in the order of the short-distance conveying assembly 132, the bending conveying assembly 131, the long-distance conveying assembly 130, another bending conveying assembly 131 and another short-distance conveying assembly 132, and the pressure sensor 133 in one of the bending conveying assemblies 131 monitors the load state of the return flow component in real time, sends the adjustment signal to the first motor 121 and the fifth motor 150 when the component accumulation is detected, and the running speed of the first section of the conveying device 120 and the waiting conveying assembly 15 is lowered in linkage, so as to avoid the return flow component and the newly input component from being blocked at the entrance of the detection conveying device 12, ensure the orderly re-inspection when the component enters the conveying device 120 again, and solve the problems of the contradiction between the efficiency and the precision caused by the fixed speed in the prior art, and the problem that the re-inspection cannot be performed in time.

[0040] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. The use of terms such as "including", "containing", or any other variation thereof, is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device for automobile parts, comprising a detection device body, wherein a base (1) is provided inside the detection device body, characterized in that: A detection conveying device (12) is provided on the top of the base (1), a ring conveying device (13) is provided on one side of the detection conveying device (12), and a guardrail (14) is provided between the detection conveying device (12) and the top of the ring conveying device (13); An interception device (16) and a steering device (17) are respectively provided inside the guardrail (14) at the top of the detection and conveying device (12); an image acquisition device (11) is provided at the top of the base (1) directly above the detection and conveying device (12); The detection conveying device (12) is used to independently control the speed according to the detection result of the image acquisition device (11), the interception device (16) is used to control the spacing of the components entering the detection conveying device (12), and the steering device (17) is used to control the direction of the components.

2. The visual inspection equipment for automobile parts according to claim 1, characterized in that: An inlet conveying device (2) is provided at one end of the detection conveying device (12), and an outlet conveying device (3) is provided at the other end of the detection conveying device (12). The intercepting device (16) is close to the inlet conveying device (2), and the steering device (17) is close to the outlet conveying device (3).

3. The visual inspection equipment for automobile parts according to claim 2, characterized in that: A waiting conveying assembly (15) is provided between the detection conveying device (12) and the outer wall of the entrance conveying device (2), and a No. 5 motor (150) is fixedly connected to the end of the driving roller of the waiting conveying assembly (15).

4. The visual inspection equipment for automobile parts according to claim 3, characterized in that: The detection conveying device (12) comprises three sections of conveying devices (120), and the driving rollers of the three sections of the conveying devices (120) are respectively fixedly connected to a first motor (121), a second motor (122), and a third motor (123).

5. The visual inspection equipment for automobile parts according to claim 4, characterized in that: The annular conveying device (13) comprises a long-distance conveying assembly (130), wherein both ends of the long-distance conveying assembly (130) are provided with a bending moment conveying assembly (131), and a short-distance conveying assembly (132) is provided between the end of the bending moment conveying assembly (131) and the outer wall of the conveying device (120).

6. The visual inspection equipment for automobile parts according to claim 5, characterized in that: A pressure sensor (133) is provided inside one of the bending moment transmission components (131), and the drive roller ends of the long-distance transmission component (130), the bending moment transmission component (131), and the short-distance transmission component (132) are all fixedly connected to a No. 4 motor (134).

7. The visual inspection equipment for automobile parts according to claim 1, characterized in that: The intercepting device (16) comprises an arc plate (160), the arc plate (160) is located at the top of the conveying device (120), the inner wall of the arc plate (160) is fixedly connected to a support plate (161), the end of the support plate (161) is fixedly connected to a roller (162), the roller (162) is movably connected to the inside of the guardrail (14), and the top of the roller (162) is fixedly connected to a No. 6 motor (163).

8. The visual inspection equipment for automobile parts according to claim 7, characterized in that: The guardrail (14) is provided with a gap between the short-distance transmission component (132) and the transmission device (120), a steering device (17) is provided between one of the gaps, and the guardrail (14) at the other gap is designed as an inclined surface structure. The guardrail (14) is provided with a gap between the waiting transmission component (15) and the transmission device (120), and the guardrail (14) at the gap is designed as an inclined surface.

9. The visual inspection equipment for automobile parts according to claim 8, characterized in that: The steering device (17) includes a baffle (170), the baffle (170) is located at one of the notches of the guardrail (14), a hinge (171) is provided between the baffle (170) and the guardrail (14), an end head (172) is fixedly connected to the outer wall of the baffle (170), and a cylinder (173) is fixedly connected to the end of the end head (172).

10. The visual inspection equipment for automobile parts according to claims 1-9, characterized in that: A speed control system is provided between the image acquisition device (11) and the second motor (122) and the third motor (123); a control system is provided between the image acquisition device (11) and the cylinder (173); the fourth motor (134), the inlet conveying device (2) and the outlet conveying device (3) rotate at the same speed; and a speed control system is provided between the pressure sensor (133) and the first motor (121) and the fifth motor (150).

Images