Dual station taping device for instrument panel assembly

Abstract

This invention relates to a dual-station panel assembly device for instrument panel assembly. The device includes a base, a three-axis translation stage, a first working component, a second working component, an R-axis motor, a suction cup robot, and an image acquisition component. The first working component includes a first track, a first placement stage, and a first drive cylinder for driving the first placement stage to slide along the first track. The second working component includes a second track, a second placement stage, and a second drive cylinder for driving the second placement stage to slide along the second track. Both placement stages are provided with a backlight film placement area and a segment code screen placement area, and can be alternately located at both ends of their respective tracks for easy assembly and spare parts storage. The R-axis motor and the image acquisition component are both mounted on the three-axis translation stage, and the suction cup robot is mounted on the output shaft of the R-axis motor. This device can automatically bond the backlight film to the segment code screen, improving bonding accuracy, reducing the process requirements for operators, and resulting in better consistency of the instrument panels with virtually no differences between finished products.

Description

Technical Field

[0001] This invention relates to the field of instrument panel assembly technology, and more specifically to a dual-station assembly device for instrument panel assembly. Background Technology

[0002] Existing automotive dashboards can use segment displays, which can display rich colors by bonding a backlight to the segment display. Current technology often uses manual bonding to attach the segment display to the backlight. However, as users' demands for display quality increase, the requirements for bonding precision between the segment display and the backlight also increase. This places excessive demands on the operator's skill level, and due to individual differences, it is difficult to ensure consistent alignment between the segment display and the backlight after bonding, resulting in inconsistent display quality and a poor user experience. Moreover, this method has low production efficiency and is not conducive to mass production. Summary of the Invention

[0003] Based on the above situation, the main objective of this invention is to provide a dual-station panel assembly device for instrument panel assembly, which can automatically bond backlight film to segment code screen, improve bonding accuracy, greatly reduce the process requirements for operators, and achieve better consistency of the bonded instrument panels with virtually no differences between finished products.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A dual-station assembly device for assembling instrument panels, the instrument panel including a segment code screen and a backlight film for alignment and bonding; the device includes a base, a three-axis translation stage, a first working component, a second working component, an R-axis motor, a suction cup robot, and an image acquisition component;

[0006] The three-axis translation stage includes an X-axis support, a Y-axis support, a Z-axis support, and a movable base. The X-axis support includes base bodies fixed side-by-side to the base. The two ends of the Y-axis support are slidably connected to the top of the two base bodies. The Z-axis support is slidably connected to the Y-axis support. The movable base is slidably connected to the Z-axis support. A hollow structure is formed between the X-axis support, the Y-axis support, and the base.

[0007] Two working components are disposed in the hollow structure. The first working component includes a first track, a first placement platform, and a first driving cylinder for driving the first placement platform to slide on the first track. The second working component includes a second track, a second placement platform, and a second driving cylinder for driving the second placement platform to slide on the second track. The first and second placement platforms are distributed along the height direction and each is provided with a backlight film placement area and a segment code screen placement area. The two placement platforms can be alternately located at the two ends of their respective tracks to facilitate assembly and spare parts. The first and second tracks are arranged parallel to the axial direction of the X-axis bracket and are arranged side by side with the first and second driving cylinders on the base.

[0008] The R-axis motor and the image acquisition component are both mounted on the movable base, and the suction cup robot is mounted on the output shaft of the R-axis motor.

[0009] Preferably, the three-axis translation stage further includes an X-axis motor, a Y-axis motor, and a Z-axis motor. The X-axis motor is connected to the X-axis bracket along the axial direction of the X-axis bracket, and its output shaft is connected to the Y-axis bracket. The Y-axis motor is connected to the Y-axis bracket along the axial direction of the Y-axis bracket, and its output shaft is connected to the Z-axis bracket. The Z-axis motor is connected to the Z-axis bracket along the axial direction of the Z-axis bracket, and its output shaft is connected to the movable base.

[0010] Preferably, the suction cup manipulator has a through hole in the middle;

[0011] It also includes a positioning pin, which is detachably mounted on the output shaft of the R-axis motor. The positioning pin can pass through the through hole for initial calibration during the assembly of the backlight sheet and the segment code screen.

[0012] Preferably, the backlight sheet placement area and segment code screen placement area on each placement platform are distributed along the axial direction of the X-axis bracket, and multiple backlight sheet placement areas on each placement platform are arranged along the axial direction of the Y-axis bracket.

[0013] Preferably, each placement platform includes a base plate slidably connected to the corresponding track and a support plate stacked on the base plate. The backlight film placement area and the segment code screen placement area are respectively disposed on the support plate, and each is provided with a light-transmitting hole.

[0014] A first light source is provided between the base plate and the backlight sheet placement area, and a second light source is provided between the base plate and the segment code screen placement area, so that the components on it can be illuminated through the light-transmitting holes of each placement area.

[0015] Preferably, the dual-station lamination device further includes a base box, in which an air source and a vacuum generator are installed, and the vacuum generator and each drive cylinder are respectively connected to the air source; the base is mounted on the base box.

[0016] The suction cup robot, the backlight film placement area, and the segment code screen placement area are each provided with a negative pressure adsorption hole, and the negative pressure adsorption hole is connected to the vacuum generating device.

[0017] Preferably, the base box includes a box body and rollers, with the rollers mounted on the bottom of the box body.

[0018] Preferably, the dual-station film-matching device further includes a protective cover, a display screen for displaying images from the image acquisition component, and an interactive screen for user interaction. The display screen and the interactive screen are mounted side-by-side along the axial direction of the Y-axis bracket on the front side of the upper region of the protective cover. Each track extends out of the front side of the protective cover in the lower region, and one end of the track extends out of the protective cover as a spare parts station.

[0019] Preferably, a film placement bracket and a searchlight are respectively installed on both sides of the first working component along the axial direction of the Y-axis support on the base, and the film placement bracket and the searchlight are both located on the front side of the protective cover.

[0020] Preferably, the dual-station assembly device further includes a plasma fan, which is installed on the front side of the upper region of the protective cover and the air outlet faces the spare parts station.

[0021] The dual-station assembly device of this invention, when bonding the backlight sheet to the segment code screen, uses a drive cylinder to push the working component to slide on the corresponding track, allowing the working component to prepare parts at one end of the track and bond the backlight sheet and segment code screen at the other end. A three-axis translation stage drives an image acquisition component to acquire images of the backlight sheet and the segment code screen, thereby positioning the backlight sheet and segment code screen. Then, the three-axis translation stage drives a suction cup robot to precisely grasp the backlight sheet and bond it to the segment code screen. The two working components slide alternately on their respective tracks; while preparing parts on one working component, the backlight sheet and segment code screen on the other working component are assembled, thus improving the efficiency of bonding the segment code screen and backlight sheet. This fully automated assembly method of image acquisition, positioning, and automatic bonding improves bonding accuracy, greatly reduces the technical requirements for operators, and results in better consistency of the bonded dashboards, with virtually no difference between finished products and an almost indistinguishable display effect to the human eye, thereby improving the user experience.

[0022] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0023] The preferred embodiment of the dual-station panel assembly device of the present invention will now be described with reference to the accompanying drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of a preferred embodiment of the dual-station wafer-setting device according to the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the first and second working components;

[0026] Figure 3 This is a schematic diagram of the placement platform;

[0027] Figure 4 An exploded view of the placement platform;

[0028] Figure 5 Another exploded diagram of the placement platform;

[0029] Figure 6 This is a schematic diagram of the R-axis motor and the suction cup robot.

[0030] Figure 7 This is a schematic diagram of another implementation of the dual-station wafer assembly device.

[0031] The components include: 1. Base; 2. Three-axis translation stage; 3. Working assembly; 4. R-axis motor; 5. Suction cup robot; 6. Image acquisition assembly; 7. Film loading bracket; 8. Searchlight; 9. Protective cover; 10. Plasma fan; 11. Base box; 12. Display screen; 13. Interactive screen;

[0032] 21. X-axis support; 22. Y-axis support; 23. Z-axis support; 24. X-axis motor; 25. Y-axis motor; 26. Z-axis motor;

[0033] 31. First working component; 311. First drive cylinder; 312. First track; 313. First placement platform;

[0034] 32. Second working component; 321. Second drive cylinder; 322. Second track; 323. Second placement platform;

[0035] 33. Base plate;

[0036] 34. First support platform; 341. Adhesive-proof groove; 342. First light-transmitting hole; 343. First negative pressure adsorption hole;

[0037] 35. Second support platform; 351. Substrate; 352. Transparent support plate; 353. Second light-transmitting hole; 354. Second negative pressure adsorption hole;

[0038] 36. Support plate; 37. First light source; 38. Second light source;

[0039] 41. Connection port;

[0040] 51. Suction cup; 52. Through hole;

[0041] 111. Roller; Detailed Implementation

[0042] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0043] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0044] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0045] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] See Figures 1-7 This invention relates to a dual-station panel assembly device (hereinafter referred to as "panel assembly device") for assembling instrument panels, used to automatically bond backlight panels and segment display screens to form an instrument panel. The instrument panel includes a segment display screen and a backlight panel that are aligned and bonded together. The panel assembly device includes a base 1, a three-axis translation stage 2, a first working component 31, a second working component 32, an R-axis motor 4, a suction cup robot arm 5, and an image acquisition component 6. The backlight panel has several light-transmitting areas, and the segment display screen has several liquid crystal display areas. After the backlight panel and the segment display screen are bonded together, the light-transmitting areas on the backlight panel and the liquid crystal display areas on the segment display screen overlap one-to-one.

[0047] The three-axis translation stage 2 includes an X-axis support 21, a Y-axis support 22, a Z-axis support 23, and a movable seat. For ease of description, the axis of the X-axis support 21 is the X-axis direction, the axis of the Y-axis support 22 is the Y-axis direction, and the axis of the Z-axis support 23 is the Z-axis direction. The X-axis and Y-axis directions are perpendicular to each other and are both horizontal, while the Z-axis direction is vertical. The X-axis support 21 includes a seat body fixed side-by-side to the base 1. The two ends of the Y-axis support 22 are slidably connected to the top of the two seat bodies, allowing the Y-axis support 22 to slide in the X-axis direction. The Z-axis support 23 is slidably connected to the Y-axis support 22, allowing the Z-axis support 23 to slide relative to the Y-axis support 22 in the Y-axis direction. The movable seat is slidably connected to the Z-axis support 23, allowing the movable seat to slide relative to the Z-axis support 23 in the Z-axis direction. Ultimately, the movable seat can move in the X, Y, and Z-axis directions. A workspace is formed on the base 1, and a mechanical coordinate system is established. Figure 1 The coordinate system shown has the X-axis parallel to the X-axis direction, the Y-axis parallel to the Y-axis direction, and the Z-axis parallel to the Z-axis direction. This allows the moving seat to move arbitrarily within the workspace and the range of motion defined by the three-axis translation stage 2.

[0048] A hollow structure is formed between the X-axis support 21, the Y-axis support 22 and the base 1. The X-axis support 21 includes two seats arranged side by side in the Y-axis direction. The Y-axis support 22 is located on the upper side of the X-axis support 21 and is mounted on the two seats, so that there is a gap between the Y-axis support 22 and the base 1, and a hollow structure is formed between the two seats within this gap.

[0049] See Figure 1 and Figure 2Two working components 3 are disposed in a hollow structure. The first working component 31 includes a first track 312, a first placement platform 313, and a first driving cylinder 311 that drives the first placement platform 313 to slide on the first track 312. The second working component 32 includes a second track 322, a second placement platform 323, and a second driving cylinder 321 that drives the second placement platform 323 to slide on the second track 322. The first placement platform 313 and the second placement platform 323 are distributed along the height direction, with the first placement platform 313 on top and the second placement platform 323 on the bottom. Both are provided with a backlight film placement area and a segment code screen placement area. The two placement platforms can be alternately located at the two ends of their respective tracks to facilitate assembly and spare parts. The first track 312 and the second track 322 are arranged parallel to the axial direction of the X-axis bracket 21, and they are arranged side by side with the first driving cylinder 311 and the second driving cylinder 321 on the base 1. Both the first track 312 and the second track 322 extend along the X-axis, allowing the first placement platform 313 and the second placement platform 323 to slide along the X-axis. The hollow structure contains an assembly station and a spare parts station, located at opposite ends of the track, allowing the placement platform to slide between them. Taking a working component 3 as an example, when the placement platform is in the spare parts station, the operator can prepare spare parts for it. "Spare parts" means placing the backlight sheet in the backlight sheet placement area and the segment code screen in the segment code screen placement area. When the placement platform is in the assembly station, the backlight sheet and the segment code screen on the placement platform are assembled. "Assembly" means that the image acquisition component 6 takes pictures of the backlight sheet and the segment code screen respectively to position them. Then, the suction cup robot arm 5 picks up the backlight sheet and attaches it to the segment code screen. The specific assembly process is detailed below.

[0050] Both the R-axis motor 4 and the image acquisition component 6 are mounted on a movable base, and the suction cup robot 5 is mounted on the output shaft of the R-axis motor 4. The output shaft of the R-axis motor 4 (hereinafter referred to as the R-axis) is vertically oriented, and the R-axis motor 4 can drive the suction cup robot 5 to rotate, causing the suction cup robot 5 to rotate around the R-axis (vertical axis). Both the R-axis motor 4 and the image acquisition component 6 are mounted on a movable base, which can move freely within the workspace, allowing the suction cup robot 5 and the image acquisition component 6 to move freely within the workspace, thereby positioning the backlight sheet and segment code screen at the assembly station, and realizing the gripping of the backlight sheet and bonding of it to the segment code screen by the suction cup robot 5.

[0051] The first placement platform 313 and the second placement platform 323 of the present invention slide alternately. That is, when the first placement platform 313 is located at the spare parts station, the second placement platform 323 is located at the assembly station; when the first placement platform 313 is located at the assembly station, the second placement platform 323 is located at the spare parts station, thereby realizing uninterrupted bonding of the backlight sheet and the segment code screen and improving bonding efficiency.

[0052] In this invention, both the assembly station and the spare parts station are unique, allowing operators to place the backlight film and segment code screen on both placement platforms from a single location, reducing the operator's workload. Furthermore, the placement platform is driven to slide between the two stations by a drive cylinder, and the stroke of the drive cylinder is unique. That is, when the drive cylinder is fully extended, the corresponding placement platform is in the spare parts station, and when the drive cylinder is fully retracted, the corresponding placement platform is in the assembly station (of course, in some embodiments, when the drive cylinder is fully extended, the placement platform is in the assembly station, and when the drive cylinder is fully retracted, the placement platform is in the spare parts station). Without the need for precise control of the drive cylinder's stroke, the placement platform can switch between the spare parts station and the assembly station with high precision.

[0053] The backlight sheet has two first positioning marks, and the segment display has second positioning marks corresponding to the two first positioning marks. Taking the first working component 31 as an example, initially, the first placement platform 313 is located at the spare parts station, where spare parts can be prepared. That is, the backlight sheet is placed face down on the backlight sheet placement area, and the segment display is placed face down on the segment display placement area. Then, the first placement platform 313 is moved to the assembly station. The image acquisition component 6 can be a photographic device, which takes pictures of the first and second positioning marks at a specific shooting position (the shooting position is fixed each time) to obtain image information. The controller determines the coordinates of the first and second positioning marks in the mechanical coordinate system based on the positions of the first and second positioning marks in the image information, thereby achieving the purpose of positioning the first and second positioning marks. Then, the placement position of the backlight sheet can be determined based on the first positioning marks (corresponding to the following coordinates). The placement position (corresponding to coordinates (X6, Y6)) and placement angle of the segment code screen are determined according to the second positioning mark (X3, Y3). Based on the position of the backlight sheet, the suction cup robot 5 is controlled to move and grasp the backlight sheet. Then, the angle of the backlight sheet is adjusted according to the placement angle of the backlight sheet and the segment code screen to make it consistent with the placement angle of the segment code screen. Then, according to the placement position of the segment code screen, the backlight sheet is moved to the segment code screen and attached to it (first moved horizontally above the segment code screen, and then the backlight sheet is moved downward to attach to the segment code screen), thereby achieving high-precision alignment and attachment between the backlight sheet and the segment code screen. Of course, in another embodiment, the backlight sheet can also be moved to the top of the segment code screen first, and then the angle of the backlight sheet can be adjusted according to the placement angle of the backlight sheet and the segment code screen to make it consistent with the placement angle of the segment code screen. Then, the backlight sheet is moved downward to attach to the segment code screen to obtain the instrument panel.

[0054] Specifically, taking two first positioning marks on the backlight as an example, such as those distributed at two opposite corners of the backlight, the image acquisition component 6 captures images of the first positioning marks to obtain first image information. A first image coordinate system corresponding to the first image information is established, and the coordinates of the two first positioning marks on the first image coordinate system are determined. For example, if the coordinates of the two first positioning marks are (x1, y1) and (x2, y2), the position of the backlight on the first image coordinate system can be determined based on these two coordinates. For example, if the midpoint of the line connecting the two first positioning marks is used to mark the position of the backlight, then the position of the backlight on the first image coordinate system is the midpoint of these two coordinates (x3, y3). Then, the x-axis of the line connecting the two first positioning marks relative to the first image coordinate system is determined based on the coordinates of the two first positioning marks. The angle is used as the placement angle of the backlight sheet. A mechanical coordinate system is established within the assembly device. The image acquisition device can be adjusted during assembly of the assembly device so that the X-axis of the mechanical coordinate system is parallel to the x-axis of the first image coordinate system, and the Y-axis of the mechanical coordinate system is parallel to the y-axis of the first image coordinate system. The mechanical coordinate system has a first standard mechanical coordinate (X0, Y0), and the first image coordinate system has a first standard pixel coordinate (x0, y0). The first standard mechanical coordinate corresponds to the first standard pixel coordinate. Therefore, the deviation of the backlight sheet's position coordinate in the mechanical coordinate system relative to the first standard mechanical coordinate (X0, Y0) can be obtained by multiplying the deviation between (x3, y3) and (x0, y0) by the transformation coefficient k1 between the first image coordinate system and the mechanical coordinate system. Thus, the position coordinate (X3, Y3) of the backlight sheet in the mechanical coordinate system can be obtained.

[0055] The segment display has two second positioning marks corresponding to the two first positioning marks on the same backlight film. The image acquisition component 6 captures images of the second positioning marks to obtain second image information. A second image coordinate system is established corresponding to the second image information. The coordinates of the two second positioning marks in the second image coordinate system are determined. For example, if the coordinates of the two second positioning marks are (x4, y4) and (x5, y5), the position of the backlight film in the second image coordinate system can be determined based on these two coordinates. For instance, if the midpoint of the two second positioning marks is used to mark the position of the segment display, then the position of the segment display in the second image coordinate system is the midpoint of these two coordinates (x6, y6). Then, the line connecting the two second positioning marks relative to the second image coordinate system is determined based on their coordinates. The angle of the x-axis of the coordinate system is used as the placement angle of the segment code screen. During the assembly of the chip assembly device, the image acquisition device is adjusted so that the x-axis of the mechanical coordinate system is parallel to the x-axis of the second image coordinate system, and the y-axis of the mechanical coordinate system is parallel to the y-axis of the second image coordinate system. The mechanical coordinate system has a second standard mechanical coordinate (X7, Y7), and the second image coordinate system has a second standard pixel coordinate (x7, y7). The second standard mechanical coordinate and the second standard pixel coordinate correspond to each other. Therefore, the deviation of the segment code screen's position coordinates in the mechanical coordinate system relative to the second standard mechanical coordinate (X7, Y7) can be obtained by multiplying the deviation of (x6, y6) and (x7, y7) by the transformation coefficient k2 between the second image coordinate system and the mechanical coordinate system. Thus, the position coordinates (X6, Y6) of the segment code screen in the mechanical coordinate system can be obtained.

[0056] Thus, based on the position coordinates (X3, Y3) of the backlight sheet in the mechanical coordinate system, the moving suction cup robot arm 5 grasps the backlight sheet. Then, based on the difference between the placement angle of the backlight sheet and the placement angle of the segment code screen, the R-axis motor 4 is controlled to rotate, so that the backlight sheet rotates by the angle corresponding to the difference, making the angle of the backlight sheet (the angle after rotating the placement angle of the backlight sheet by the difference) consistent with the placement angle of the segment code screen. Then, the robot arm moves the backlight sheet to the position coordinates (X6, Y6) of the segment code screen in the mechanical coordinate system, thus achieving the bonding of the backlight sheet and the segment code screen. At this time, the two first positioning marks coincide with the two second positioning marks, achieving high-precision bonding between the backlight sheet and the segment code screen.

[0057] It should be noted that the two first positioning marks can be two specific light-transmitting areas on the backlight sheet, and the two second positioning marks can be two specific liquid crystal display areas on the segment display screen. At the assembly station, the first and second positioning marks are illuminated by a light source, thereby determining the placement position and angle of the backlight sheet and the segment display screen. In the resulting instrument panel, the second positioning marks can also be illuminated during actual use, allowing the user to obtain the corresponding information. The light-transmitting areas on the backlight sheet are reused as the first positioning marks, and the liquid crystal display areas on the segment display screen are reused as the second positioning marks.

[0058] Of course, the first positioning mark is specially set on the backlight sheet and located in the corner of the backlight sheet. Correspondingly, the second positioning mark is specially set in the corresponding position on the segment code screen. In the final instrument panel, the second positioning mark cannot be controlled to be lit during actual use. Even if it is lit, it will be blocked by the edge of the instrument panel, so that the user cannot notice it.

[0059] In other embodiments, the first positioning mark and the second positioning mark are colored blocks. In this case, the image acquisition component 6 does not need to illuminate the first positioning mark and the second positioning mark with a light source when acquiring relevant image information.

[0060] Furthermore, at the assembly station, there is a corresponding shooting position directly above each positioning mark. The image acquisition component 6 only captures images of the positioning mark directly below it at each shooting position to obtain image information. In the obtained image information, the captured positioning mark is basically in the center area of ​​the image information. On the one hand, this improves the recognition accuracy of the positioning mark in the image information. On the other hand, the distortion degree of the information in the center area of ​​the image information is very small (the size of the mechanical coordinate system corresponding to some pixels in the center area is consistent, and the size of the mechanical coordinate system corresponding to some pixels farther away from the center area tends to increase; the center area is circular or rectangular, the center point of the center area is consistent with the center point of the image information, and the area of ​​the center area is 0.05-0. 15) Thus, the images of the positioning markers are all located in the center area of ​​the image information, allowing for high-precision determination of the coordinates of the positioning markers in the image coordinate system. In this embodiment, taking two first positioning markers as an example, since the two first positioning markers are captured in two different image information, their coordinates in their respective image coordinate systems are (x1, y1) and (x2, y2), respectively. Based on the standard pixel coordinates and standard mechanical coordinates corresponding to their respective image coordinate systems and mechanical coordinate systems, as well as the transformation coefficient k, the position coordinates (X1, Y1) and (X2, Y2) of the two first positioning markers in the mechanical coordinate system are determined. Then, based on these two coordinates (the midpoint coordinates of these two coordinates), the position coordinates (X3, Y3) of the backlight sheet in the mechanical coordinate system, as well as the placement angle of the backlight sheet, are determined. Similarly, the position coordinates (X6, Y6) of the segment display in the mechanical coordinate system, as well as the placement angle of the segment display, are determined.

[0061] See Figure 1 The three-axis translation stage 2 also includes an X-axis motor 24, a Y-axis motor 25, and a Z-axis motor 26. The X-axis motor 24 is connected to the X-axis support 21 along the axial direction of the X-axis support 21, and its output shaft is connected to the Y-axis support 22. The Y-axis motor 25 is connected to the Y-axis support 22 along the axial direction of the Y-axis support 22, and its output shaft is connected to the Z-axis support 23. The Z-axis motor 26 is connected to the Z-axis support 23 along the axial direction of the Z-axis support 23, and its output shaft is connected to the moving base.

[0062] X-axis motor 24, Y-axis motor 25, Z-axis motor 26, and R-axis motor 4 are all servo motors or stepper motors, enabling precise control of the rotation angle of each motor. The output shaft of X-axis motor 24 is connected to Y-axis support 22. Rotation of X-axis motor 24 drives Y-axis support 22 to move in the X-axis direction, thereby moving the suction cup robot 5 and image acquisition component 6 along the X-axis. Similarly, Y-axis motor 25 moves both of them along the Y-axis, and Z-axis motor 26 moves them along the Z-axis, allowing them to move in the X, Y, and Z-axis directions. The image acquisition component 6 can be moved precisely to a specific shooting position to capture images of the first and second positioning marks. This allows the suction cup robot 5 to move to the placement position of the backlight sheet to grasp it, and also to the placement position of the segment code screen to attach the backlight sheet to the segment code screen. The R-axis motor 4 can precisely drive the suction cup robot 5 to rotate, so that the backlight sheet rotates by the difference between the two placement angles, making the angle of the backlight sheet consistent with the placement angle of the segment code screen, thereby achieving high-precision bonding between the backlight sheet and the segment code screen.

[0063] In another embodiment, the three-axis translation stage 2 can be an articulated manipulator, with the movable seat mounted on the free end of the articulated manipulator.

[0064] See Figure 6 The suction cup manipulator 5 has a through hole 52 in the middle; the plate alignment device also includes a positioning pin (not shown in the figure), which is detachably mounted on the output shaft of the R-axis motor 4. The positioning pin can pass through the through hole 52 for initial calibration when assembling the backlight plate and the segment code screen.

[0065] The positioning pin is set vertically. When the positioning pin is installed on the R-axis motor 4, the axis of the positioning pin and the axis of the output shaft of the R-axis motor 4 are on the same straight line, which can be used for initial calibration. Taking the backlight sheet as an example, the backlight sheet is placed in the backlight sheet placement area. The image acquisition component 6 is in a shooting position and takes a picture of a first positioning coordinate directly below it to obtain the captured image. The coordinates of the first positioning coordinate in the first image coordinate system are determined. This coordinate is the first standard pixel coordinate (x0, y0). Then, the moving seat is controlled to move so that the positioning pin is directly above the first positioning mark (the first positioning mark being photographed). At this time, the coordinates of the positioning pin in the mechanical coordinate system are the coordinates of the first positioning mark in the mechanical coordinate system, that is, the first standard mechanical coordinate (X0, Y0). Thus, the first standard pixel coordinate and the first standard mechanical coordinate are obtained, realizing that any coordinate in the first image coordinate system can be converted into mechanical coordinates in the mechanical coordinate system, which is used for positioning the first positioning mark on the newly placed backlight sheet later. Similarly, the above operation is performed at each shooting position to obtain the standard pixel coordinates and standard mechanical coordinates corresponding to each image coordinate system and mechanical coordinate system.

[0066] Specifically, the suction cup robot 5 includes a suction cup 51, which is mounted on the output shaft of the R-axis motor 4. The suction cup 51 has a through hole 52 in the middle, and the lower end of the output shaft of the R-axis motor 4 has a connection port 41. When the positioning pin is installed on the suction cup robot 5, the upper end of the positioning pin passes through the through hole 52 and connects to the connection port 41. When the positioning pin is separated from the robot, it can be directly unscrewed from the connection port 41.

[0067] In other embodiments, the suction cup 51 may not have a through hole 52 in the middle, but instead has a connection port 41 formed by an upward indentation on its lower surface. The connection port 41 is coaxial with the output shaft of the R-axis motor 4, and the positioning pin is detachably connected to the connection port 41.

[0068] The backlight panel placement area and segment code screen placement area on each placement platform are distributed along the axial direction of the X-axis bracket 21, and multiple backlight panel placement areas are arranged along the axial direction of the Y-axis bracket 22 on each placement platform. For example... Figure 3 In the embodiment shown, there are two backlight sheet placement areas, which allows one segment display and two backlight sheets to be placed on the placement table at the same time, and the two backlight sheets can be bonded to one segment display at the assembly station.

[0069] Of course, depending on the actual fitting requirements of the dashboard, a certain number of backlighting areas can be set on the mounting platform, such as one, two or three backlighting areas.

[0070] In other embodiments, the number of segment code screen placement areas on the placement table can also be two or more, so that at the assembly station, the corresponding backlight sheet can be bonded to the corresponding segment code screen, thereby obtaining multiple dashboards at one time (the number of which is the same as the number of segment code screen placement areas).

[0071] In addition, the backlight sheet placement area and the segment code screen placement area can also be distributed along the Y-axis direction. As long as it is ensured that the image acquisition component 6 can capture each positioning mark at the assembly station, and the suction cup robot arm 5 can pick up the backlight sheet and attach it to the segment code screen.

[0072] See Figures 3-5In embodiments where the first and second positioning marks are not color blocks, each placement platform includes a base plate 33 slidably connected to the corresponding track and a support plate 36 stacked on the base plate 33. The backlight film placement area and the segment code screen placement area are respectively disposed on the support plate 36, and each has a light-transmitting hole. A first light source 37 is disposed between the base plate 33 and the backlight film placement area, and a second light source 38 is disposed between the base plate 33 and the segment code screen placement area, so that the components on each placement area can be illuminated through the light-transmitting holes. The placement platform has a double-layer structure, with a base plate 33 on the lower layer and a support plate 36 on the upper layer. The positions of these two layers are fixed to each other. The support plate 36 forms a backlight film placement area and a segment code screen placement area. The base plate 33 is provided with a first light source 37 and a second light source 38, wherein the first light source 37 is located below the backlight film placement area, and the second light source 38 is located below the segment code screen placement area. The support plate 36 is also provided with a first light-transmitting hole 342 and a second light-transmitting hole 353, wherein the first light-transmitting hole 342 is located in the backlight film placement area. The second light-transmitting hole 353 is located in the segment display placement area. When the backlight sheet is placed in the backlight sheet placement area, the first positioning mark on the backlight sheet is within the range of the first light-transmitting hole 342. When the segment display is placed in the segment display placement area, the second positioning mark on the segment display is within the range of the second light-transmitting hole 353. Therefore, the light emitted by the first surface light source 37 can pass through the first light-transmitting hole 342 to illuminate the first positioning mark, and the light emitted by the second surface light source 38 can pass through the second light-transmitting hole 353 to illuminate the second positioning mark. In this embodiment, the distance between the two surface light sources and the support plate 36 is small, thereby improving the utilization rate of the surface light sources, and even surface light sources with lower power can be used. Moreover, each placement platform is equipped with a corresponding first surface light source 37 and second surface light source 38, so that if the first surface light source 37 or the second surface light source 38 of one placement platform is damaged, it will not affect the operation of the other placement platform. Of course, in this embodiment, the corresponding surface light source can be controlled to emit light according to the work position of the placement platform. That is, the first surface light source 37 and the second surface light source 38 on the placement platform will emit light only when the placement platform is in the assembly work position.

[0073] In another embodiment, there is one first light source 37 and one second light source 38, both fixed to the base 1. When the placement platform is located at the assembly station, the first light source 37 is positioned directly below the backlight sheet placement area of ​​the support platform, and the second light source 38 is positioned directly below the segment code screen placement area of ​​the support platform. In this embodiment, during the entire process of the two placement platforms working alternately, the two light sources can be controlled to remain in operation, thereby illuminating the first and second positioning marks on different placement platforms respectively. This method saves on the number of light sources and facilitates a more compact structure for each placement platform.

[0074] In addition, the support plate 36 includes a first support platform 34 and a second support platform 35. The first support platform 34 is provided with a backlight film placement area and a first light-transmitting hole 342 is provided in the backlight film placement area. The second support platform 35 is provided with a segment code screen placement area. The second support platform 35 includes a substrate 351 and a transparent support plate 352. The upper surface of the substrate 351 is provided with a recessed area and the bottom surface of the recessed area is provided with a second light-transmitting hole 353. The transparent support plate 352 is installed in the recessed area to form the segment code screen placement area.

[0075] The first light-transmitting hole 342 is a small circular hole that passes through the first support platform 34. When the backlight sheet is placed on the backlight sheet placement area, the first positioning mark is located within the range of the first light-transmitting hole 342 so that the first positioning mark can be lit by the first surface light source 37.

[0076] The transparent support plate 352 can be made of transparent acrylic sheet. The area of ​​the second light-transmitting hole 353 is slightly smaller than the area of ​​the recessed area, so that the transparent support plate 352 can be relatively fixed in the recessed area. The upper surface of the transparent support plate 352 forms a segment code screen placement area, and the segment code screen placement area is located within the range of the second light-transmitting hole 353. After the segment code screen is placed in the segment code screen placement area, the light emitted by the second light source 38 can pass through the entire transparent support plate 352 and illuminate the entire segment code screen. The second positioning mark belongs to the light-transmitting area on the segment code screen, so the second positioning mark can be lit. For the part outside the light-transmitting area on the segment code screen, the light cannot pass through, so as to highlight the second positioning mark.

[0077] When the placement table is in the spare parts station, the second light source 38 is turned off. Under this condition, the segment code screen is placed in the segment code screen placement area to avoid the strong light emitted by the second light source 38 from damaging the operator's eyes. When the placement table is moved to the assembly station, the second light source 38 is turned on to illuminate the second positioning mark.

[0078] For the support plate 36, the backlight sheet placement area is also provided with an adhesive avoidance groove 341. The front side of the backlight sheet is provided with double-sided adhesive. When the backlight sheet is placed in the backlight sheet placement area, the double-sided adhesive is exactly located in the adhesive avoidance groove 341, thereby preventing the backlight sheet from sticking to the support plate 36. This makes it convenient to move the backlight sheet later by the suction cup robot arm 5, and make the front side of the backlight sheet fit and stick to the back side of the segment code screen.

[0079] Preferably, see Figure 7The film-setting device also includes a base box 11, which contains an air source and a vacuum generator. The vacuum generator and each drive cylinder are connected to the air source. The base 1 is mounted on the base box 11. The suction cup robot 5, the backlight film placement area and the segment code screen placement area are respectively provided with negative pressure adsorption holes, which are respectively connected to the vacuum generator. The base box 11 is located below the base 1, forming a base space. Both the air source and the vacuum generator are installed within this space. The air source is connected to the first driving cylinder 311 and the second driving cylinder 321, providing power to them and driving the first placement platform 313 and the second placement platform 323 to slide along their respective tracks. The air source is also connected to negative pressure adsorption holes via the vacuum generator. For example, the backlight panel placement area has a first negative pressure adsorption hole 343, the segment code screen placement area has a second negative pressure adsorption hole 354, and the suction cup 51 has a third negative pressure adsorption hole. All three types of negative pressure adsorption holes are connected to the vacuum generator. When the backlight panel is placed in the backlight panel placement area, the first negative pressure adsorption hole 343 will adsorb... When the segment display screen is placed in the segment display screen placement area, the second negative pressure suction hole 354 will adhere to the segment display screen. In this way, when the placement platform slides from the spare parts station to the assembly station, the position of the backlight and the segment display screen relative to the placement platform will not change, ensuring that the first and second positioning marks can be illuminated. When the suction cup robot 5 grabs the backlight, the first negative pressure suction hole 343 stops adsorbing the backlight, the suction cup robot 5 moves and contacts the backlight, and the third negative pressure suction hole adsorbs the backlight, thus achieving the purpose of grabbing the backlight. After the backlight and the segment display screen are attached, the third negative pressure suction hole stops adsorbing, and the instrument panel is obtained. The placement platform then slides from the assembly station to the spare parts station, and the second negative pressure suction hole 354 stops adsorbing, so that the instrument panel can be removed from the placement platform.

[0080] Of course, in other embodiments, negative pressure adsorption holes may not be provided on the backlight sheet placement area and the segment code screen placement area.

[0081] Furthermore, the base box 11 includes a box body and rollers 111, with the rollers 111 mounted on the bottom of the box body. The box body encloses a base space, and the rollers 111 allow the entire pairing device to be moved.

[0082] In other embodiments, the base box 11 may be without rollers 111, making the position of the alignment device essentially immovable and ensuring the stability of the alignment device during operation.

[0083] See Figure 7The image acquisition device also includes a protective cover 9, a display screen 12 for displaying images from the image acquisition component 6, and an interactive screen 13 for user interaction. The display screen 12 and the interactive screen 13 are mounted side by side along the axial direction of the Y-axis bracket 22 on the front side of the upper region of the protective cover 9. Each track extends out of the front side of the protective cover 9 in the lower region, and one end of the track extends out of the protective cover 9 as a spare parts station.

[0084] The protective cover 9 can block external light from interfering with the image acquisition component 6, making the inside of the protective cover 9 a dark environment, making the illuminated positioning marks more obvious, thereby enabling high-precision positioning of the positioning marks and achieving high-precision bonding between the backlight sheet and the segment code screen.

[0085] The spare parts station is located outside the protective cover 9, making it convenient for operators to place the backlight film and segment code screen on the placement table in the spare parts station.

[0086] The display screen 12 can display image information, which makes it convenient for operators to monitor the operation of the film calibration device. Operators can interact with the film calibration device through the interactive screen 13 to perform parameter settings and other operations (such as initial calibration).

[0087] In embodiments where colored blocks are used as the first and second positioning marks, the aforementioned protective cover 9 can be removed.

[0088] See Figure 1 and Figure 7 On the base 1, a film placement bracket 7 and a spotlight 8 are respectively installed on both sides of the first working assembly 31 along the Y-axis bracket 22. Both the film placement bracket 7 and the spotlight 8 are located on the front side of the protective cover 9. The film placement bracket 7 and the protective cover 9 are located on both sides of the spare parts station. In use, backlight films can be stacked on the film placement bracket 7. The operator can take the backlight films from the film placement bracket 7 and place them on the backlight film placement area on the placement table in the spare parts station. The spotlight 8 can be used to check the alignment of the instrument panel after bonding.

[0089] The device also includes a plasma fan 10, which is installed on the front side of the upper area of ​​the protective cover 9, with its air outlet facing the spare parts station. When placing the segment code screen in the segment code screen placement area, the protective film on the segment code screen must first be removed. During this process, static electricity will be generated on the segment code screen, causing dust and other particles to be attracted to it, thus allowing dust to enter the instrument panel and affecting the display effect. The plasma fan 10 can blow plasma air onto the segment code screen to eliminate static electricity on the segment code screen and ensure the display effect of the obtained instrument panel.

[0090] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0091] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. A dual-station assembly device for assembling instrument panels, the instrument panel comprising a segment display screen and a backlight film for alignment and bonding; characterized in that, The backlight sheet has a light-transmitting area, and the segment code screen has a liquid crystal display area. After the backlight sheet and the segment code screen are bonded together, the light-transmitting area on the backlight sheet and the liquid crystal display area on the segment code screen overlap one-to-one. The device includes a base, a three-axis translation stage, a first working component, a second working component, an R-axis motor, a suction cup robot, and an image acquisition component. The three-axis translation stage includes an X-axis support, a Y-axis support, a Z-axis support, and a movable base. The X-axis support includes a base body fixed side by side to the base. The two ends of the Y-axis support are slidably connected to the top of the two base bodies respectively. The Z-axis support is slidably connected to the Y-axis support. The movable seat is slidably connected to the Z-axis bracket; A hollow structure is formed between the X-axis support, the Y-axis support and the base; Two working components are disposed in the hollow structure. The first working component includes a first track, a first placement platform, and a first driving cylinder for driving the first placement platform to slide on the first track. The second working component includes a second track, a second placement platform, and a second driving cylinder for driving the second placement platform to slide on the second track. The first and second placement platforms are distributed along the height direction and each is provided with a backlight film placement area and a segment code screen placement area. The two placement platforms can be alternately located at the two ends of their respective tracks to facilitate assembly and spare parts. The first and second tracks are arranged parallel to the axial direction of the X-axis bracket and are arranged side by side with the first and second driving cylinders on the base. The R-axis motor and the image acquisition component are both mounted on the movable base, and the suction cup manipulator is mounted on the output shaft of the R-axis motor. The backlight sheet placement area and segment code screen placement area on each placement platform are distributed along the axial direction of the X-axis bracket, and multiple backlight sheet placement areas on each placement platform are arranged along the axial direction of the Y-axis bracket. The hollow structure has an assembly station and a spare parts station, which are located at opposite ends of the track, allowing the placement platform to slide between the assembly station and the spare parts station. Each assembly station and spare parts station is unique, allowing the operator to place the backlight film and segment code screen on both placement platforms from a single location. Each placement platform includes a base plate slidably connected to the corresponding track and a support plate stacked on the base plate. The backlight film placement area and the segment code screen placement area are respectively disposed on the support plate, and each is provided with a light-transmitting hole. A first light source is provided between the base plate and the backlight sheet placement area, and a second light source is provided between the base plate and the segment code screen placement area, so that the components on each placement area can be illuminated through the light-transmitting holes. The support plate is provided with a first light-transmitting hole and a second light-transmitting hole. The first light-transmitting hole is located in the backlight sheet placement area, and the second light-transmitting hole is located in the segment code screen placement area. When the backlight sheet is placed in the backlight sheet placement area, a first positioning mark on the backlight sheet is located within the range of the first light-transmitting hole. When the segment code screen is placed in the segment code screen placement area, a second positioning mark on the segment code screen is located within the range of the second light-transmitting hole. The image acquisition component captures images of the first positioning mark and the second positioning mark to obtain first image information and second image information, respectively. The light-transmitting area on the backlight sheet is reused as the first positioning mark, and the light-transmitting area on the segment code screen is reused as the second positioning mark. The first positioning marks are located at two opposite corners of the backlight sheet. A first image coordinate system corresponding to the first image information is established, and the coordinates of the two first positioning marks in the first image coordinate system are determined. The position and placement angle of the backlight sheet in the first image coordinate system are determined by the two coordinates. The second positioning marks are located at two opposite corners of the segment code screen. A second image coordinate system corresponding to the second image information is established, and the coordinates of the two second positioning marks in the second image coordinate system are determined. The position and placement angle of the segment code screen in the second image coordinate system are determined by the two coordinates. A mechanical coordinate system is established within the assembly device. During assembly, the image acquisition component is adjusted to make the axes of the mechanical coordinate system parallel to those of the image coordinate system, and the transformation coefficient between the two is determined. Based on the transformation relationship between the first positioning mark and the first image coordinate system and the mechanical coordinate system, the position coordinates of the backlight sheet in the mechanical coordinate system are obtained. Based on the transformation relationship between the second positioning mark and the second image coordinate system and the mechanical coordinate system, the position coordinates of the segment display in the mechanical coordinate system are obtained. Based on the position coordinates of the backlight sheet in the mechanical coordinate system, the three-axis translation stage is controlled to move the suction cup robot arm to the position of the backlight sheet to grasp the backlight sheet. Then, based on the difference in the placement angle between the backlight sheet and the segment code screen, the R-axis motor is controlled to rotate to adjust the angle of the backlight sheet so that it is consistent with the angle of the segment code screen. Finally, the backlight sheet is moved to the position of the segment code screen in the mechanical coordinate system to achieve the bonding of the backlight sheet and the segment code screen.

2. The dual-station wafer assembly device according to claim 1, characterized in that, The three-axis translation stage also includes an X-axis motor, a Y-axis motor, and a Z-axis motor. The X-axis motor is connected to the X-axis support along the axial direction of the X-axis support, and its output shaft is connected to the Y-axis support. The Y-axis motor is connected to the Y-axis support along the axial direction of the Y-axis support, and its output shaft is connected to the Z-axis support. The Z-axis motor is connected to the Z-axis support along the axial direction of the Z-axis support, and its output shaft is connected to the movable seat.

3. The dual-station wafer assembly device according to claim 1, characterized in that, The suction cup manipulator has a through hole in the middle. It also includes a positioning pin, which is detachably mounted on the output shaft of the R-axis motor. The positioning pin can pass through the through hole for initial calibration during the assembly of the backlight sheet and the segment code screen.

4. The dual-station wafer assembly device according to claim 1, characterized in that, It also includes a base box, in which an air source and a vacuum generator are installed, and the vacuum generator and each drive cylinder are respectively connected to the air source; the base is mounted on the base box; The suction cup robot, the backlight film placement area, and the segment code screen placement area are each provided with a negative pressure adsorption hole, and the negative pressure adsorption hole is connected to the vacuum generating device.

5. The dual-station wafer assembly device according to claim 4, characterized in that, The base box includes a box body and casters, with the casters mounted on the bottom of the box body.

6. The dual-station wafer assembly device according to any one of claims 1-5, characterized in that, It also includes a protective cover, a display screen for displaying images from the image acquisition component, and an interactive screen for user interaction. The display screen and the interactive screen are mounted side by side along the axial direction of the Y-axis bracket on the front side of the upper region of the protective cover. Each track extends out of the front side of the protective cover in the lower region, and one end of the track extends out of the protective cover as a spare parts station.

7. The dual-station wafer assembly device according to claim 6, characterized in that, On the base, a film placement bracket and a searchlight are respectively installed on both sides of the first working component along the axial direction of the Y-axis support. The film placement bracket and the searchlight are both located on the front side of the protective cover.

8. The dual-station wafer assembly device according to claim 6, characterized in that, It also includes a plasma fan, which is installed on the front side of the upper area of ​​the protective cover and the air outlet faces the spare parts station.

Images