An online optical intelligent detection machine for flexible light strips

Abstract

The present invention discloses an online optical intelligent inspection machine for flexible light strips, which belongs to the field of flexible light strip inspection machines, and comprises an outer sheet metal frame, wherein a feeding assembly, a platform moving repair assembly, a lifting assembly and a discharging assembly are sequentially arranged inside the outer sheet metal frame from one side to the other side; the feeding assembly comprises a feeding adjustment mechanism fixed to one side of the inner part of the outer sheet metal frame, and a CCD camera photographing mechanism is fixedly connected to one side above the feeding adjustment mechanism, a lead screw guide rail adjustment mechanism is arranged on one side of the CCD camera photographing mechanism, and a push-down detection mechanism is arranged on the lead screw guide rail adjustment mechanism, and a bottom floating adjustment mechanism is arranged below the push-down detection mechanism, and the feeding adjustment mechanism specifically comprises: a bottom plate fixed to one side of the inner part of the outer sheet metal frame. The present invention can effectively position and accurately detect when switching flexible light strips of different widths for detection.

Description

Technical Field

[0001] The invention relates to a flexible light strip detection machine, in particular to an online optical intelligent detection machine for flexible light strips. Background Art

[0002] With the rapid development of economy and the continuous progress of society, energy conservation, emission reduction and labor saving have become the inevitable trend of global development, and there is a broad consensus in society. Various electrical appliances are increasingly developing in the direction of energy saving, easy use, space saving, safety and efficiency, and multi-functionality. The application of flexible light strips is becoming more and more extensive, and the quality requirements are getting higher and higher. In the production process of flexible light strips, semi-finished products and finished products must be tested and lit to detect their effects, and the operation of intelligent detection and lighting of flexible light strips is required.

[0003] During production, the long flexible light strip is cut into segments according to the needs and then processed. After cutting and segmenting, not all flexible light strips have the same width, which results in the detection device originally matched with a flexible light strip of one width being unable to quickly detect a flexible light strip of another width, that is, the existing flexible light strip lighting detection cannot be applied to flexible light strips of different widths, and when switching flexible light strips of different widths for detection, effective positioning and accurate detection cannot be performed. Therefore, those skilled in the art provide an online optical intelligent detection machine for flexible light strips to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide an online optical intelligent detection machine for flexible light strips, which can perform effective positioning and precise detection when switching flexible light strips of different widths for detection, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A flexible light strip online optical intelligent detection machine comprises an outer sheet metal frame, wherein a feed assembly, a platform moving rework assembly, a lifting assembly and a discharge assembly are sequentially arranged inside the outer sheet metal frame from one side to the other side; the feed assembly comprises a feed adjustment mechanism fixed to one side of the inner part of the outer sheet metal frame, and a CCD camera photographing mechanism is fixedly connected to one side above the feed adjustment mechanism, a lead screw guide rail adjustment mechanism is provided on one side of the CCD camera photographing mechanism, and a push-down detection mechanism is provided on the lead screw guide rail adjustment mechanism, and a bottom floating adjustment mechanism is provided below the push-down detection mechanism.

[0007] When in use, the flexible light strip is adjusted and tested by the feeding component and then reaches the platform mobile repair component. The staff will repair the unlit lamp beads according to the test results of the feeding component. After the repair is completed, it will be lifted by the lifting component to ensure it is level and then tested again. Finally, the tested flexible light strip is exported from the discharging component.

[0008] As a further solution of the present invention: the feed adjustment mechanism specifically includes: a bottom plate fixed to one side of the inner part of the outer sheet metal frame, side plates are fixedly connected on both sides of the top end surface of the bottom plate, a base plate is fixedly connected between the top ends of the opposite surfaces of the two side plates, and a feed guide plate is fixedly connected to the top end of one side surface of the side plate, a support plate is fixedly connected to one side of the top end surface of the side plate, and an elastic groove is provided on the side of the support plate, a lifting block is movably connected inside the elastic groove, a pressing roller is movably connected between the two lifting blocks, and a spring column is fixedly connected between the top end surface of the lifting block and the top end surface of the elastic groove, a first pressing cylinder is symmetrically fixedly connected to the middle position of the top end surfaces of the two side plates, and the screw guide rail adjustment mechanism is fixed on the other side of the top end surface of the side plate.

[0009] When in use, the flexible light strip first enters from the feed adjustment mechanism when passing through the feed assembly. During the process, the flexible light strip is placed on the feed guide plate and continuously extends forward, and the lifting blocks at both ends of the pressing roller are pressed against the bottom of the elastic groove under the action of the spring column, so that the pressing roller presses down to press the flexible light strip on the substrate to prevent it from tilting and deviating. Subsequently, the flexible light strip is pressed and fixed by the first pressing cylinder for lighting detection.

[0010] As a further solution of the present invention: the CCD camera shooting mechanism specifically includes: a strip connecting plate fixed on one side above the feed adjustment mechanism, one side of the strip connecting plate is fixedly connected to a camera support plate, and one side of the camera support plate is fixedly connected to a first CCD camera.

[0011] During the detection process, the first CCD camera is operated to take pictures of the lamp beads of the flexible light strip to determine their positions.

[0012] As a further solution of the present invention: the screw and guide rail adjustment mechanism specifically includes: a support seat fixed on the feed adjustment mechanism, the bottom end surface of the support seat opening for the flexible light strip to pass through for detection, and a linear guide rail is fixedly connected to the middle position of the top end surface of the support seat, the top end surface of the linear guide rail is movably connected to two parallel sliders, and the top ends of the sliders are commonly fixedly connected to a fixed seat, the middle position of the top end surface of the fixed seat is fixedly connected to a fixed plate, the downward-pressable detection mechanism is fixed on the side of the fixed plate, one side of the support seat is fixedly connected to a motor support frame, and one side of the motor support frame is fixedly connected to a drive motor, one side of the fixed seat is fixedly connected to a screw connecting seat, and the internal thread of the screw connecting seat is connected to a transmission screw, and the output end of the drive motor passes through the motor support frame and is fixedly connected to one end of the transmission screw.

[0013] The lead screw guide rail adjustment mechanism moves the pressurizable detection mechanism to the corresponding position according to the position photographed by the CCD camera photography mechanism. Specifically, the drive motor runs according to the command of the control system to drive the transmission screw to rotate. Due to the limitations of the linear guide rail and the slider, the fixed seat and the lead screw connecting seat move forward and backward along the linear guide rail as the transmission screw rotates, thereby driving the fixed plate to move forward and backward, and the pressurizable detection mechanism connected to the fixed plate follows the movement.

[0014] As a further solution of the present invention: the drive motor is a DC motor, and the DC motor adopts PID control based on genetic algorithm and Kalman filter to form a control system, ignoring the armature inductance, the current loop and the speed loop are open loops, and the dynamic state equation of the control system is:

[0015]

[0016] Where K u is the PWM power amplifier gain factor, R is the armature resistance, K m is the motor torque coefficient, C e is the voltage feedback coefficient, J is the moment of inertia of the frame, is the rotation speed, u(t) is the control input, and x1(t)=θ(t) is the rotation angle; is the rotation speed,

[0017] Assume that the control system parameters are R = 7.77Ω, K m =6N·m / A, C e =1.2V / (rad / s), J=0.6kg·m 2 , K u =11V / V;

[0018] Therefore, the transfer function of the steering angle control system is:

[0019]

[0020] The transfer function of the speed control system is:

[0021]

[0022] After connecting the angle control system and the speed control system in parallel, the total transfer function G(S) of the control system is:

[0023]

[0024] As a further solution of the present invention: the downward-pressing detection mechanism specifically includes a downward-pressing cylinder fixedly connected to the screw guide rail adjustment mechanism, and a plurality of probes are fixedly connected to the output end of the downward-pressing cylinder, and the downward-pressing cylinder can press the probes down until they come into contact with the flexible light strip through the bottom floating adjustment mechanism.

[0025] After the pressurizable detection mechanism is brought to the corresponding position by the screw guide rail adjustment mechanism, the pressurizing cylinder drives the probe downward, and the pressed probe contacts the flexible light strip. It should be noted that the needle tip of the probe completely contacts the electrode and signal of the flexible light strip, so that the entire detection circuit is connected and the test lighting is completed.

[0026] As a further solution of the present invention: the bottom floating adjustment mechanism specifically includes: a bottom support plate fixedly connected to the top of the feed adjustment mechanism, a floating groove is opened in the middle position of the top surface of the bottom support plate, and a floating plate is movably connected inside the floating groove, a plurality of springs are fixedly connected between the bottom end surface of the floating plate and the bottom end surface of the floating groove to cushion the impact of the downward-pressing detection mechanism when it contacts the floating plate, and baffles are symmetrically and movably connected on both sides of the floating plate.

[0027] When the probe is pressed down and contacts the flexible light strip, the floating plate is impacted by the probe and moves downward in the floating slot, and the multiple springs inside the floating slot can buffer the impact of the probe contacting the floating plate to prevent the probe from being crushed. The baffles can be set to adjust the spacing between them as needed, making it easier to clamp flexible light strips of different widths.

[0028] As a further solution of the present invention: the platform moving rework assembly specifically includes: a track frame fixed on one side of the feeding assembly, the top of the track frame is movably connected with the rework platform, and the rework platform can move forward, backward, left and right on the track frame, one side of the top surface of the rework platform is fixedly connected with a bracket, and the top of the side surface of the bracket is fixedly connected with a second CCD camera, and one side of the bracket is fixedly connected with a handle.

[0029] After detecting that some of the lamp beads in the flexible lamp strip are not lit, the repair component is moved through the platform for repair. Specifically, the position of the unlit lamp bead is first photographed by the second CCD camera, and then the handle is dragged to move the repair platform on the track frame to the position of the lamp bead that needs to be repaired, and then the flexible light strip near the repair lamp bead is pressed for repair.

[0030] As a further solution of the present invention: the lifting assembly specifically includes: a lifting cylinder fixed at the bottom of one side of the platform mobile rework assembly, the top output end of the lifting cylinder is fixedly connected to a lifting plate, and the bottom end corner of the lifting plate is fixedly connected to an optical axis, the bottom end of the outer side surface of the optical axis is sleeved with a linear bearing, and the linear bearing is fixed inside the outer sheet metal frame.

[0031] After the repair is completed, the flexible light strip is photographed and scanned again to detect whether there are any unlit lamp beads. The lifting assembly lifts the flexible light strip to a certain position to ensure that it is level and then conducts another inspection. Specifically, the operation of the lifting cylinder drives the lifting plate to rise, and then lifts the flexible light strip to a certain position. During the process, the optical axis follows the rise in the linear bearing to ensure the stability of the lifting plate and avoid directional deviation.

[0032] As a further solution of the present invention: the discharge assembly specifically includes: a discharge seat fixed on one side of the lifting assembly, the top surface of the discharge seat is symmetrically fixedly connected with a second pressing cylinder on both sides, and the second pressing cylinder is fixedly connected with a clamping cylinder on one side, and a discharge guide plate is fixedly connected to one side of the discharge seat.

[0033] When discharging, the two clamping cylinders move relative to each other to push the flexible light strips of different widths to the middle position of the top surface of the unloading seat, and finally send them out from the unloading guide plate. When inspecting and repairing, in order to ensure the stability of the flexible light strip, the second pressing cylinder runs to press the flexible light strip.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. Through the setting of the feeding component, it is possible to perform effective positioning and precise detection when switching flexible light strips of different widths for detection. Among them, the feeding adjustment mechanism adjusts the entering flexible light strip to facilitate subsequent detection. Subsequently, the CCD camera photographing mechanism takes a picture of the lamp beads to determine their position, and the screw guide rail adjustment mechanism moves the pressable detection mechanism to the corresponding position according to the position photographed by the CCD camera photographing mechanism. Finally, the pressable detection mechanism operates to press down the probe for detection, and the setting of the bottom floating adjustment mechanism prevents the probe from being crushed. The whole process is smooth, whether it is detecting flexible light strips of the same width or suddenly switching to detect flexible light strips of another width, the feeding component can quickly locate and perform precise detection.

[0036] 2. This application is more accurate than conventional manual adjustment. It relies on CCD photography to capture the MARK point for automatic adjustment, and the front, back, left, and right position accuracy can reach within 0.01mm.

[0037] 3. 100% of the inspection images are magnified and lit for inspection to avoid missed inspections. The humanized rework mechanism ensures that 100% of the products are shipped qualified. It is easy to complete various operations, saving manpower, simplifying operations and improving efficiency.

[0038] 4. The driving motor of the present application is a DC motor, and the DC motor adopts PID control based on genetic algorithm and Kalman filter to form a control system. The control system has an ideal following effect on the target output signal, and the error and fluctuation are very small, so that the probe can be moved to the correct position more accurately, thereby improving the accuracy of the detection results. It can also further ensure the accuracy of the probe position when switching flexible light strips of different widths for detection, thereby achieving the purpose of effective positioning and precise detection.

[0039] 5. The entire testing process of this application is automated, and during repairs, it can also assist staff to quickly perform repairs, thereby saving manpower and simplifying operations.

[0040] 6. This application is not only used in the LED industry, but can also be fully used in PCB, new energy, SMT, SMD and other flexible material equipment industries, which greatly expands the use occasions of the system and gives full play to the compatibility and flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a structural diagram of an online optical intelligent detection machine for flexible light strips;

[0042] Figure 2 A side view of an online optical intelligent inspection machine for flexible light strips;

[0043] Figure 3 It is a structural schematic diagram of a feeding component in an online optical intelligent inspection machine for flexible light strips;

[0044] Figure 4 It is a structural schematic diagram of a feeding adjustment mechanism in an online optical intelligent inspection machine for flexible light strips;

[0045] Figure 5 This is a structural schematic diagram of a CCD camera photographing mechanism in an online optical intelligent inspection machine for flexible light strips;

[0046] Figure 6 It is a structural schematic diagram of a lead screw guide rail adjustment mechanism in an online optical intelligent detection machine for flexible light strips;

[0047] Figure 7 It is a structural schematic diagram of a depressible detection mechanism in an online optical intelligent detection machine for a flexible light strip;

[0048] Figure 8 It is a structural schematic diagram of a bottom floating adjustment mechanism in an online optical intelligent inspection machine for flexible light strips;

[0049] Fig. 9 It is a structural schematic diagram of a platform moving repair component in an online optical intelligent inspection machine for flexible light strips;

[0050] Fig.10 This is a structural schematic diagram of a lifting component in an online optical intelligent inspection machine for flexible light strips;

[0051] Fig.11 It is a structural schematic diagram of a discharge component in an online optical intelligent inspection machine for flexible light strips;

[0052] Fig.12 This is a control system block diagram of a drive motor in an online optical intelligent inspection machine for a flexible light strip;

[0053] Fig.13 This is a diagram of the iterative convergence process of the genetic algorithm in an online optical intelligent detection machine for flexible light strips;

[0054] Fig.14 This is a response diagram of the step signal of the control system of the drive motor in an online optical intelligent detection machine for a flexible light strip.

[0055] In the figure: 1, outer sheet metal frame; 2, feed assembly; 21, feed adjustment mechanism; 211, bottom plate; 212, side plate; 213, base plate; 214, feed guide plate; 215, first pressing cylinder; 216, support plate; 217, elastic groove; 218, pressing roller; 219, lifting block; 22, CCD camera shooting mechanism; 221, strip connecting plate; 222, camera support plate; 223, first CCD camera; 23, lead screw guide rail adjustment mechanism; 231, support seat; 232, linear guide rail; 233, slider; 234, fixed seat; 235, fixed plate; 236, motor support frame; 237, drive motor; 23 8. Drive screw; 239. Screw connecting seat; 24. Pressurizable detection mechanism; 241. Pressing cylinder; 242. Probe; 25. Bottom floating adjustment mechanism; 251. Bottom support plate; 252. Floating groove; 253. Floating plate; 254. Baffle; 3. Platform moving rework assembly; 31. Track frame; 32. Rework platform; 33. Handle; 34. Second CCD camera; 35. Bracket; 4. Lifting assembly; 41. Lifting cylinder; 42. Lifting plate; 43. Optical axis; 44. Linear bearing; 5. Discharging assembly; 51. Unloading seat; 52. Unloading guide plate; 53. Second pressing cylinder; 54. Clamping cylinder; 6. Control panel. DETAILED DESCRIPTION

[0056] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] See also Figures 1 to 14In the embodiment of the present invention, an online optical intelligent inspection machine for flexible light strips includes an outer sheet metal frame 1, and a feed assembly 2, a platform moving repair assembly 3, a lifting assembly 4, and a discharge assembly 5 are sequentially arranged inside the outer sheet metal frame 1 from one side to the other side; the feed assembly 2 includes a feed adjustment mechanism 21 fixed to one side of the inner side of the outer sheet metal frame 1, and a CCD camera photographing mechanism 22 is fixedly connected to one side above the feed adjustment mechanism 21, and a lead screw guide rail adjustment mechanism 23 is provided on one side of the CCD camera photographing mechanism 22, and a push-down detection mechanism 24 is provided on the lead screw guide rail adjustment mechanism 23, and a bottom floating adjustment mechanism 25 is provided below the push-down detection mechanism 24. When in use, the flexible light strip is adjusted and inspected by the feed assembly 2 and then reaches the platform moving repair assembly 3, and the staff repairs the unlit lamp beads according to the inspection results of the feed assembly 2. After the repair is completed, it is lifted by the lifting assembly 4 to ensure that it is flush and then inspected. Finally, the inspected flexible light strip is led out from the discharge assembly 5.

[0058] In this embodiment, the feed adjustment mechanism 21 specifically includes: a bottom plate 211 fixed to one side of the inner part of the outer sheet metal frame 1, side plates 212 are fixedly connected to both sides of the top surface of the bottom plate 211, a base plate 213 is fixedly connected between the tops of the opposite surfaces of the two side plates 212, and a feed guide plate 214 is fixedly connected to the top of one side of the side plate 212, a support plate 216 is fixedly connected to one side of the top surface of the side plate 212, and an elastic groove 217 is provided on the side of the support plate 216, a lifting block 219 is movably connected inside the elastic groove 217, a pressing roller 218 is movably connected between the two lifting blocks 219, and a spring column is fixedly connected between the top surface of the lifting block 219 and the top surface of the elastic groove 217, a first pressing cylinder 215 is symmetrically fixedly connected to the middle position of the top surfaces of the two side plates 212, and a screw guide adjustment mechanism 23 is fixed to the other side of the top surface of the side plate 212. When in use, the flexible light strip first enters from the feed adjustment mechanism 21 when passing through the feed assembly 2. During the process, the flexible light strip is placed on the feed guide plate 214 and continuously extends forward, and the lifting blocks 219 at both ends of the pressing roller 218 are pressed against the bottom of the elastic groove 217 under the action of the spring column, so that the pressing roller 218 presses down to press the flexible light strip on the substrate 213 to prevent it from tilting and deviating. Subsequently, the flexible light strip is pressed and fixed by the first pressing cylinder 215 for lighting detection.

[0059] In this embodiment, the CCD camera photographing mechanism 22 specifically includes: a strip connecting plate 221 fixed to one side above the feeding adjustment mechanism 21, a camera support plate 222 fixedly connected to one side of the strip connecting plate 221, and a first CCD camera 223 fixedly connected to one side of the camera support plate 222. During the detection process, the first CCD camera 223 operates to take pictures of the lamp beads of the flexible light strip to determine their positions.

[0060] In this embodiment, the screw guide rail adjustment mechanism 23 specifically includes: a support seat 231 fixed on the feed adjustment mechanism 21, the bottom end surface of the support seat 231 is opened for the flexible light strip to pass through for detection, and a linear guide rail 232 is fixedly connected to the middle position of the top end surface of the support seat 231, and the top end surface of the linear guide rail 232 is movably connected to two parallel sliders 233, and the top ends of the sliders 233 are commonly fixedly connected to a fixed seat 234, and a fixed plate 235 is fixedly connected to the middle position of the top end surface of the fixed seat 234. The downward-pressing detection mechanism 24 is fixed on the side of the fixed plate 235, one side of the support seat 231 is fixedly connected to a motor support frame 236, and one side of the motor support frame 236 is fixedly connected to a drive motor 237, one side of the fixed seat 234 is fixedly connected to a screw connecting seat 239, and the internal thread of the screw connecting seat 239 is connected to a transmission screw 238, and the output end of the drive motor 237 passes through the motor support frame 236 and is fixedly connected to one end of the transmission screw 238. The screw guide rail adjustment mechanism 23 moves the pressurizable detection mechanism 24 to the corresponding position according to the position photographed by the CCD camera photography mechanism 22. Specifically, the driving motor 237 operates according to the command of the control system to drive the transmission screw 238 to rotate. Due to the limitations of the linear guide rail 232 and the slider 233, the fixed seat 234 and the screw connecting seat 239 move back and forth along the linear guide rail 232 as the transmission screw 238 rotates, thereby driving the fixed plate 235 to move back and forth, and the pressurizable detection mechanism 24 connected to the fixed plate 235 follows the movement.

[0061] In this embodiment, the drive motor 237 is a DC motor, and the DC motor adopts PID control based on genetic algorithm and Kalman filter to form a control system, ignoring the armature inductance, the current loop and the speed loop are open loops, and the dynamic state equation of the control system is:

[0062]

[0063] Where K u is the PWM power amplifier gain factor, R is the armature resistance, K m is the motor torque coefficient, C e is the voltage feedback coefficient, J is the moment of inertia of the frame, is the rotation speed, u(t) is the control input, and x1(t)=θ(t) is the rotation angle; is the rotation speed,

[0064] Assume that the control system parameters are R = 7.77Ω, K m =6N·m / A, C e =1.2V / (rad / s), J=0.6kg·m 2 , K u =11V / V;

[0065] Therefore, the transfer function of the steering angle control system is:

[0066]

[0067] The transfer function of the speed control system is:

[0068]

[0069] After connecting the angle control system and the speed control system in parallel, the total transfer function G(S) of the control system is:

[0070]

[0071] The optimal parameters of the PID control parameters of the total transfer function G(S) obtained by genetic algorithm after 25 iterations are:

[0072] Kp = 46.2735727431101; Ki = 156.154766197570; Kd = 2.22546954754411, where the iterative convergence process of the genetic algorithm is as follows Fig.13 shown.

[0073] The response of the system step signal after combining the optimal PID parameters with the Kalman filter is as follows Fig.14 As shown, the dotted line is the actual output of the system, and the solid line is the ideal target output. It is not difficult to find that the control system of the driving motor 237 of the present application has an ideal following effect on the target output signal, and the error and fluctuation are very small, thereby being able to more accurately move the probe 242 to the correct position.

[0074] In this embodiment, the depressible detection mechanism 24 specifically includes a depressing cylinder 241 fixedly connected to the lead screw guide rail adjustment mechanism 23, and a plurality of probes 242 are fixedly connected to the output end of the depressing cylinder 241, and the depressing cylinder 241 can depress the probes 242 to contact the flexible light strip passing through the bottom floating adjustment mechanism 25. After the depressible detection mechanism 24 is brought to the corresponding position by the lead screw guide rail adjustment mechanism 23, the depressing cylinder 241 operates to drive the probes 242 to depress, and the depressing probes 242 contact the flexible light strip. It should be noted that the needle tip of the probe 242 completely contacts the electrode and signal of the flexible light strip, so that the entire detection circuit is connected and the test lighting is completed.

[0075] In this embodiment, the bottom floating adjustment mechanism 25 specifically includes: a bottom support plate 251 fixedly connected to the top of the feed adjustment mechanism 21, a floating groove 252 is provided at the middle position of the top surface of the bottom support plate 251, and a floating plate 253 is movably connected inside the floating groove 252, a plurality of springs are fixedly connected between the bottom end surface of the floating plate 253 and the bottom end surface of the floating groove 252 to buffer the impact of the depressible detection mechanism 24 when it contacts the floating plate 253, and baffles 254 are symmetrically movably connected on both sides of the floating plate 253. When the probe 242 is pressed down to contact the flexible light strip, the floating plate 253 is impacted by the probe 242 and moves downward in the floating groove 252, and the plurality of springs inside the floating groove 252 can buffer the impact of the probe 242 when it contacts the floating plate 253, so as to prevent the probe 242 from being crushed.

[0076] In this embodiment, the platform moving rework component 3 specifically includes: a track frame 31 fixed on one side of the feeding component 2, a rework platform 32 is movably connected to the top of the track frame 31, and the rework platform 32 can move forward, backward, left and right on the track frame 31, a bracket 35 is fixedly connected to one side of the top surface of the rework platform 32, and a second CCD camera 34 is fixedly connected to the top of the side of the bracket 35, and a handle 33 is fixedly connected to one side of the bracket 35. After detecting that the flexible lamp strip has a lamp bead that is not lit, the platform moving rework component 3 is used for rework, specifically, first taking a picture of the position of the lamp bead that is not lit by the second CCD camera 34, and then dragging the handle 33 to move the rework platform 32 on the track frame 31 to the position of the lamp bead that needs to be reworked, and then pressing the flexible lamp strip near the lamp bead to be reworked for rework.

[0077] In this embodiment, the lifting assembly 4 specifically includes: a lifting cylinder 41 fixed below one side of the platform moving rework assembly 3, the top output end of the lifting cylinder 41 is fixedly connected with a lifting plate 42, and the bottom end face corner position of the lifting plate 42 is fixedly connected with an optical axis 43, and the bottom end of the outer side surface of the optical axis 43 is sleeved with a linear bearing 44, and the linear bearing 44 is fixed inside the outer sheet metal frame 1. After the rework is completed, the flexible light strip is photographed and scanned again to detect whether there are any unlit lamp beads. The lifting assembly 4 raises the flexible light strip to a certain position to ensure that it is level and then conducts the inspection. Specifically, the operation of the lifting cylinder 41 drives the lifting plate 42 to rise, and then raises the flexible light strip to a certain position. During the process, the optical axis 43 follows the rise in the linear bearing 44 to ensure the stability of the rise of the lifting plate 42 and avoid deviation in direction.

[0078] In this embodiment, the discharging assembly 5 specifically includes: a discharging seat 51 fixed on one side of the lifting assembly 4, a second pressing cylinder 53 is symmetrically fixedly connected to both sides of the top surface of the discharging seat 51, and a clamping cylinder 54 is fixedly connected to one side of the second pressing cylinder 53, and a discharging guide plate 52 is fixedly connected to one side of the discharging seat 51. When discharging, the two clamping cylinders 54 run relative to each other to push the flexible light strips of different widths to the middle position of the top surface of the discharging seat 51, and finally send them out from the discharging guide plate 52. When inspecting and repairing, in order to ensure the stability of the flexible light strip, the second pressing cylinder 53 runs to press the flexible light strip.

[0079] In this embodiment, a control panel 6 is also fixedly connected to the interior of the outer sheet metal frame 1, and the control panel 6 is located between the lifting assembly 4 and the discharging assembly 5. The control panel 6 is used to control the operating states of the feeding assembly 2, the platform moving rework assembly 3, the lifting assembly 4 and the discharging assembly 5.

[0080] The working principle of the present invention is: when in use, the flexible light strip is adjusted and tested by the feeding component 2 to confirm the position of the unlit lamp beads. The staff moves the platform moving repair component 3 to the position of the unlit lamp beads for repair according to the detection result of the feeding component 2. After the repair is completed, it is lifted by the lifting component 4 to ensure that it is level and then tested. Finally, the tested flexible light strip is discharged from the discharging component 5.

[0081] Among them, when the flexible light strip passes through the feeding assembly 2, it first enters from the feeding adjustment mechanism 21. During the process, the flexible light strip is placed on the feeding guide plate 214 and continuously extends forward, and the lifting blocks 219 at both ends of the pressing roller 218 are pressed against the bottom of the elastic groove 217 under the action of the spring column, so that the pressing roller 218 presses down to press the flexible light strip on the substrate 213 to prevent it from tilting and deviating. Subsequently, the flexible light strip is pressed and fixed by the first pressing cylinder 215 for lighting detection.

[0082] During the detection process, the first CCD camera 223 is operated to take pictures of the lamp beads of the flexible light strip to determine their positions. During the process, the first CCD camera 223 accurately captures the MARK point (the position difference compared with the outline of the standard template is the MARK point), and the screw guide rail adjustment mechanism 23 makes fine adjustments and compensations (the position difference between the outline of the latter MARK point and the outline of the previous precise MARK point is driven by the transmission screw 238 to rotate so that the screw guide rail adjustment mechanism 23 is fine-tuned and corrected forward and backward). In general, the screw guide rail adjustment mechanism 23 moves the pressable detection mechanism 24 to the corresponding position according to the position photographed by the CCD camera camera mechanism 22, specifically: the drive motor 237 drives the transmission screw 238 to rotate according to the command of the control system, and due to the restrictions of the linear guide 232 and the slider 233, the fixed seat 234 and the screw connecting seat 239 move forward and backward along the linear guide 232 with the rotation of the transmission screw 238, thereby driving the fixed plate 235 to move forward and backward, and the pressable detection mechanism 24 connected to the fixed plate 235 follows the movement. After the depressible detection mechanism 24 is brought to the corresponding position by the lead screw guide rail adjustment mechanism 23, the depressing cylinder 241 operates to drive the probe 242 to depress, and the depressing probe 242 contacts the flexible light strip, wherein the needle tip of the probe 242 completely contacts the electrode and signal of the flexible light strip, so that the entire detection circuit is connected and the test lighting is completed. When the probe 242 is pressed down and contacts the flexible light strip, the floating plate 253 is impacted by the probe 242 and moves downward in the floating groove 252, and the multiple springs inside the floating groove 252 can buffer the impact of the probe 242 when it contacts the floating plate 253, so as to avoid the probe 242 from being crushed. In addition, after detecting that the lamp beads of the flexible light strip are not lit, the platform moves the rework component 3 for rework, specifically, firstly take a picture of the position of the lamp beads that are not lit by the second CCD camera 34, then drag the handle 33, move the rework platform 32 on the track frame 31 to the position of the lamp beads that need to be reworked, and then press the flexible light strip near the reworked lamp beads for rework. After the repair is completed, the flexible light strip is photographed and scanned again to detect whether there are any unlit lamp beads. The lifting component 4 lifts the flexible light strip to a certain position to ensure that it is level before testing. Specifically, the lifting cylinder 41 drives the lifting plate 42 to rise, and then lifts the flexible light strip to a certain position. During the process, the optical axis 43 follows the rise in the linear bearing 44 to ensure the stability of the lifting plate 42 and avoid deviation in direction. Finally, the material is discharged. The two clamping cylinders 54 run relative to each other to push the flexible light strips of different widths to the middle position of the top surface of the unloading seat 51, and finally send them out from the unloading guide plate 52. When testing and repairing, in order to ensure the stability of the flexible light strip, the second pressing cylinder 53 runs to press the flexible light strip.

[0083] It should be noted that the driving motor 237 of the present application is a DC motor, and the DC motor adopts PID control based on genetic algorithm and Kalman filter to form a control system. The control system has an ideal tracking effect on the target output signal, and the error and fluctuation are very small, so that the probe 242 can be moved to the correct position more accurately, thereby improving the accuracy of the detection results.

[0084] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0085] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flexible light strip online optical intelligent detection machine, characterized in that: It comprises an outer sheet metal frame (1), wherein a feeding assembly (2), a platform moving repair assembly (3), a lifting assembly (4) and a discharging assembly (5) are sequentially arranged inside the outer sheet metal frame (1) from one side to the other side; The feed assembly (2) comprises a feed adjustment mechanism (21) fixed to one side of the interior of the outer sheet metal frame (1), and a CCD camera shooting mechanism (22) is fixedly connected to one side of the feed adjustment mechanism (21), a lead screw guide rail adjustment mechanism (23) is provided on one side of the CCD camera shooting mechanism (22), and a push-down detection mechanism (24) is provided on the lead screw guide rail adjustment mechanism (23), and a bottom floating adjustment mechanism (25) is provided below the push-down detection mechanism (24); the feed adjustment mechanism (21) specifically comprises: a bottom plate (211) fixed to one side of the interior of the outer sheet metal frame (1), and two sides of the top surface of the bottom plate (211) are fixedly connected to the bottom surface of the bottom plate (211). A side plate (212) is fixedly connected, a base plate (213) is fixedly connected between the top ends of the opposite surfaces of the two side plates (212), and a feed guide plate (214) is fixedly connected to the top end of one side of the side plate (212), a support plate (216) is fixedly connected to one side of the top end surface of the side plate (212), and an elastic groove (217) is provided on the side of the support plate (216), a lifting block (219) is movably connected inside the elastic groove (217), a pressing roller (218) is movably connected between the two lifting blocks (219), and a spring column is fixedly connected between the top end surface of the lifting block (219) and the top end surface of the elastic groove (217), and the two side plates ( A first pressing cylinder (215) is symmetrically fixedly connected at the middle position of the top surface of the side plate (212), and the screw guide rail adjustment mechanism (23) is fixed at the other side of the top surface of the side plate (212); the screw guide rail adjustment mechanism (23) specifically comprises: a support seat (231) fixed on the feed adjustment mechanism (21), the bottom end surface of the support seat (231) is open for the flexible light strip to pass through for detection, and a linear guide rail (232) is fixedly connected at the middle position of the top surface of the support seat (231), and the top surface of the linear guide rail (232) is movably connected to two parallel sliders (233), and the top ends of the sliders (233) are fixedly connected to a fixed seat (234) A fixing plate (235) is fixedly connected to the middle position of the top surface of the fixing seat (234), the depressible detection mechanism (24) is fixed on the side of the fixing plate (235), one side of the support seat (231) is fixedly connected to a motor support frame (236), and one side of the motor support frame (236) is fixedly connected to a driving motor (237), one side of the fixing seat (234) is fixedly connected to a screw connection seat (239), and the internal thread of the screw connection seat (239) is connected to a transmission screw (238), and the output end of the driving motor (237) passes through the motor support frame (236) and is fixedly connected to one end of the transmission screw (238);The bottom floating adjustment mechanism (25) specifically comprises: a bottom support plate (251) fixedly connected to the top of the feed adjustment mechanism (21); a floating groove (252) is provided at the middle position of the top surface of the bottom support plate (251); a floating plate (253) is movably connected inside the floating groove (252); a plurality of springs are fixedly connected between the bottom end surface of the floating plate (253) and the bottom end surface of the floating groove (252) to buffer the impact of the depressible detection mechanism (24) when it contacts the floating plate (253); and baffles (254) are symmetrically and movably connected on both sides of the floating plate (253). ; 2. The online optical intelligent detection machine for flexible light strips according to claim 1 is characterized in that: The CCD camera photographing mechanism (22) specifically comprises: a strip-shaped connecting plate (221) fixed to one side above the feed adjustment mechanism (21); one side of the strip-shaped connecting plate (221) is fixedly connected to a camera support plate (222); and one side of the camera support plate (222) is fixedly connected to a first CCD camera (223).

3. The online optical intelligent detection machine for flexible light strips according to claim 1 is characterized in that: The drive motor (237) is a DC motor, and the DC motor adopts a PID control based on a genetic algorithm and a Kalman filter to form a control system, ignoring the armature inductance, and the current loop and the speed loop are open loops. The dynamic state equation of the control system is: Where K u is the PWM power amplifier gain factor, R is the armature resistance, K m is the motor torque coefficient, C e is the voltage feedback coefficient, J is the moment of inertia of the armature, is the rotation speed, u(t) is the control input, and x1(t)=θ(t) is the rotation angle; is the rotation speed, Assume that the control system parameters are R = 7.77Ω, K m =6N·m / A, C e =1.2V / (rad / s), J=0.6kg·m 2 , K u =11V / V; Therefore, the transfer function of the steering angle control system is: The transfer function of the speed control system is: After connecting the angle control system and the speed control system in parallel, the total transfer function G(S) of the control system is:

4. The online optical intelligent detection machine for flexible light strips according to claim 1 is characterized in that: The pressurizable detection mechanism (24) specifically comprises a pressurizing cylinder (241) fixedly connected to the lead screw guide rail adjustment mechanism (23), a plurality of probes (242) being fixedly connected to the output end of the pressurizing cylinder (241), and the pressurizing cylinder (241) can press the probes (242) downward until they come into contact with the flexible light strip passing through the bottom floating adjustment mechanism (25).

5. The online optical intelligent detection machine for flexible light strips according to claim 1, characterized in that: The platform movable rework component (3) specifically comprises: a track frame (31) fixed on one side of the feed component (2); a rework platform (32) is movably connected to the top of the track frame (31), and the rework platform (32) can move forward, backward, left and right on the track frame (31); a bracket (35) is fixedly connected to one side of the top surface of the rework platform (32); a second CCD camera (34) is fixedly connected to the top of the side of the bracket (35); and a handle (33) is fixedly connected to one side of the bracket (35).

6. The online optical intelligent detection machine for flexible light strips according to claim 1, characterized in that: The lifting assembly (4) specifically comprises: a lifting cylinder (41) fixed below one side of the platform moving rework assembly (3); the top output end of the lifting cylinder (41) is fixedly connected to a lifting plate (42); and the bottom end corner of the lifting plate (42) is fixedly connected to an optical axis (43); the bottom end of the outer side surface of the optical axis (43) is sleeved with a linear bearing (44), and the linear bearing (44) is fixed inside the outer sheet metal frame (1).

7. The online optical intelligent detection machine for flexible light strips according to claim 1, characterized in that: The material discharging assembly (5) specifically comprises: a material discharging seat (51) fixed on one side of the lifting assembly (4); a second material pressing cylinder (53) is symmetrically fixedly connected to both sides of the top surface of the material discharging seat (51); a material clamping cylinder (54) is fixedly connected to one side of the second material pressing cylinder (53); and a material discharging guide plate (52) is fixedly connected to one side of the material discharging seat (51).

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