Alignment crimping device, crimping method, crimping system and storage medium

Abstract

The invention discloses an alignment crimping device, a crimping method, a crimping system and a storage medium, which are used for reducing the cost and calculation complexity of the whole alignment crimping device. The device comprises an alignment platform, a to-be-crimped display screen, a shooting module, a pressure head module and an FPC module. The alignment platform is arranged on the plane, the display screen to be crimped is arranged on the side, close to the pressure head module, of the alignment platform, and a product crimping pin is arranged on the side, close to the pressure head module, of the display screen to be crimped; the shooting module comprises a camera and a lens, the camera is connected with the lens, and the shooting module is arranged above the alignment platform; fPC exposed pins are arranged on the back of the FPC module, the FPC exposed pins are located on the side facing the alignment platform, and FPC back windowing areas are arranged on the two sides of the FPC exposed pins; a pressure head windowing area is arranged on the side, facing the alignment platform, of the pressure head module. And the lower side of the pressure head module is connected with the back of the FPC module to form a crimping structure.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of display screen crimping, and in particular to an alignment crimping device and crimping method, a crimping system, and a storage medium. Background Art

[0003] As one of the display components of the device, the display screen is used in various high-end devices, such as mobile phones, TVs, tablets, etc. As people's requirements for screen display continue to increase, the display screen has gradually become a technologically sophisticated product. Secondly, the display panel is an important part of electronic products such as TVs, mobile phones, and computers. During the production process of the production line, the display panel needs to be precisely bonded with other parts and assembled into a terminal product to be delivered to the customer. Due to the fine shape of the product and limited spatial design tolerance, the production tolerance accuracy requirements are all at the micron level.

[0004] In the process of display screen production, due to the complex manufacturing process of the display screen and the difficulty in achieving very good flatness in the evaporation process, the luminance of each sub-pixel varies greatly under the same external conditions. This is a common defect, which is more serious in display screens than in semiconductor light emitting diodes (LCDs). This means that after the display screen is manufactured, it is necessary to compensate the sub-pixels of each display screen to meet the display screen display standards.

[0005] For the compensation process of the display screen, the first thing that needs to be done is the crimping of the display screen. Only after the crimping is completed can the display screen be lit up so that the display screen displays the corresponding detection screen. In the prior art, it is necessary to crimp and light up the pins of the FPC module and the display screen, which requires the shooting device to shoot the pins of the FPC module and the display screen from top to bottom, and confirm the position deviation between the two through the controller, and then perform the crimping process after adjusting the position deviation. Most of the conventional practices of the alignment crimping devices are to fit the FPC module under the pressure head module, but in this method, since the edge of the FPC module is flush with the edge of the pressure head module, the shooting module can only set up an alignment mark on the pressure head module for alignment. This method cannot position the FPC module and the display screen, so the current choice is to set up an alignment mark on the FPC module, but this method is still unable to clearly shoot the alignment mark of the FPC module from the top due to the obstruction of the pressure head module, and can only roughly align the FPC module and the display screen, and cannot determine whether the alignment between the pins is completed. In this method, the shooting module cannot capture the FPC module and the alignment mark on the FPC module from directly above the pressure head module. The only option is to add a shooting module below to capture images from the bottom of the pressure head module upwards, which increases the cost and computational complexity of the entire alignment crimping device. Summary of the invention

[0006] The present application discloses an alignment crimping device and a crimping method, a crimping system and a storage medium, which are used to reduce the cost and calculation complexity of the entire alignment crimping device.

[0007] The first aspect of the present application discloses a positioning crimping device, comprising:

[0008] Alignment platform, display screen to be crimped, camera module, crimping head module and FPC module;

[0009] The alignment platform is arranged on a plane, the display screen to be crimped is arranged on a side of the alignment platform close to the pressure head module, and the display screen to be crimped is provided with a product crimping pin on a side close to the pressure head module;

[0010] The shooting module includes a camera and a lens, the camera and the lens are connected, and the shooting module is arranged above the alignment platform;

[0011] The FPC module is provided with an FPC external leakage pin on the back, the FPC external leakage pin is located on the side facing the alignment platform, and FPC back window areas are provided on both sides of the FPC external leakage pin;

[0012] At least two FPC alignment marks are provided on the window area on the back of the FPC;

[0013] A pressure head window area is provided on one side of the pressure head module facing the alignment platform;

[0014] The lower side of the pressure head module is connected to the back of the FPC module to form a crimping structure, and the FPC alignment mark is located in the pressure head window area.

[0015] Optionally, the back of the FPC module is provided with exposed FPC externally exposed pins;

[0016] The FPC leakage pin extends outward from the edge of the pressure head module, which is determined as the FPC extension area.

[0017] Optionally, the alignment platform also includes a display screen alignment mark;

[0018] There is a platform pressure head alignment area between the crimping pins of the product to be crimped on the display screen and the edge of the alignment platform;

[0019] The display screen alignment mark is arranged on the platform pressure head alignment area above the alignment platform.

[0020] Optionally, a crimping error pin is provided between each FPC leakage pin;

[0021] The distance between every two FPC leakage pins is the same;

[0022] The distance between each crimping error pin and the adjacent FPC leakage pin on the left is different.

[0023] The second aspect of the present application discloses a method for crimping, comprising:

[0024] The camera module is used to shoot the display screen to be crimped and the crimping structure on the alignment platform to generate a first detection image;

[0025] Determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image;

[0026] Calculate the first deviation of the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark;

[0027] Controlling the alignment platform to adjust displacement according to the first deviation;

[0028] Control the alignment platform to pre-press the display screen and the press-fit structure to be pressed;

[0029] Taking pictures again by the shooting module to generate a second detection image;

[0030] Determine the positions of the product crimping pins and the FPC exposed pins on the second inspection image;

[0031] Calculate the second deviation of the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin;

[0032] determining a pin alignment result according to the second deviation;

[0033] The display screen to be crimped and the crimping structure are crimped according to the pin alignment results.

[0034] Optionally, determining the positions of the product crimping pins and the FPC exposed pins on the second inspection image includes:

[0035] Determine the display screen alignment mark and the FPC alignment mark in the second detection image;

[0036] According to the alignment mark on the display screen and the alignment mark on the FPC, the crimped pins of the product and the exposed pins of the FPC are roughly positioned, and the real-time images of the product pins and the real-time images of the FPC pins are generated;

[0037] Acquire a product pin reference image and an FPC pin reference image from a database, wherein the product pin reference image is a photographed image of pins with the same crimped pin model as the product, and the FPC pin reference image is a photographed image of pins with the same exposed pin model as the FPC;

[0038] Performing mean filtering on the product pin real-time image and the product pin reference image to generate a first mean filtered image and a second mean filtered image;

[0039] Obtaining a first standard deviation and a second standard deviation of the first mean filtered image and the second mean filtered image;

[0040] calculating contrast data based on the first standard deviation and the second standard deviation;

[0041] Performing a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image;

[0042] generating weight data according to the contrast data and the difference image, and generating a contrast variable through the weight data, the contrast data and the difference image;

[0043] The pixels of the difference image are weighted according to the weight data and the contrast variable to generate a contrast enhanced image;

[0044] Determine the product pin area in the contrast enhanced image based on a threshold segmentation algorithm;

[0045] Determine the product crimping pin position in the real-time image of the product pin based on the product pin area of ​​the contrast-enhanced image;

[0046] The FPC pin real-time image and the FPC pin reference image are subjected to mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination.

[0047] Optionally, after the display screen to be crimped and the crimping structure are crimped according to the pin alignment result, the alignment crimping method further includes:

[0048] Obtain the on-off parameter set of each crimping error pin, where the distance between each crimping error pin and the adjacent FPC leakage pin on the left is different;

[0049] Determine that there are butt-jointed crimping error pins in the on-off parameter set;

[0050] The crimping deviation is determined based on the distance between the crimping error pin with butt joint and the FPC leakage pin adjacent to the left;

[0051] Make crimp adjustments based on crimp deviation.

[0052] The third aspect of the present application discloses a positioning crimping system, comprising:

[0053] A first generating unit is used to shoot the display screen to be crimped and the crimping structure on the alignment platform through a shooting module to generate a first detection image;

[0054] A first determining unit is used to determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image;

[0055] A first calculation unit is used to calculate a first deviation of the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark;

[0056] An adjustment unit, used for controlling the alignment platform to adjust the displacement according to the first deviation;

[0057] A pre-pressing unit is used to control the alignment platform to pre-press the display screen and the crimping structure to be crimped;

[0058] A second generating unit, configured to generate a second detection image by taking pictures again through the shooting module;

[0059] A second determining unit is used to determine the positions of the product crimping pins and the FPC exposed pins on the second detection image;

[0060] A second calculation unit is used to calculate a second deviation between the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin;

[0061] A third determining unit, configured to determine a pin alignment result according to the second deviation;

[0062] The first crimping unit is used to crimp the display screen to be crimped and the crimping structure according to the pin alignment result.

[0063] Optionally, the second determining unit includes:

[0064] Determine the display screen alignment mark and the FPC alignment mark in the second detection image;

[0065] According to the alignment mark on the display screen and the alignment mark on the FPC, the crimped pins of the product and the exposed pins of the FPC are roughly positioned, and the real-time images of the product pins and the real-time images of the FPC pins are generated;

[0066] Acquire a product pin reference image and an FPC pin reference image from a database, wherein the product pin reference image is a photographed image of pins with the same crimped pin model as the product, and the FPC pin reference image is a photographed image of pins with the same exposed pin model as the FPC;

[0067] Performing mean filtering on the product pin real-time image and the product pin reference image to generate a first mean filtered image and a second mean filtered image;

[0068] Obtaining a first standard deviation and a second standard deviation of the first mean filtered image and the second mean filtered image;

[0069] calculating contrast data based on the first standard deviation and the second standard deviation;

[0070] Performing a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image;

[0071] generating weight data according to the contrast data and the difference image, and generating a contrast variable through the weight data, the contrast data and the difference image;

[0072] The pixels of the difference image are weighted according to the weight data and the contrast variable to generate a contrast enhanced image;

[0073] Determine the product pin area in the contrast enhanced image based on a threshold segmentation algorithm;

[0074] Determine the product crimping pin position in the real-time image of the product pin based on the product pin area of ​​the contrast-enhanced image;

[0075] The FPC pin real-time image and the FPC pin reference image are subjected to mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination.

[0076] Optionally, after the first crimping unit, the alignment crimping system further includes:

[0077] An acquisition unit is used to acquire a set of on-off parameters of each crimping error pin, where the distance between each crimping error pin and the FPC leakage pin adjacent to the left is different;

[0078] A fourth determining unit, used to determine whether there are butt-jointed crimping error pins in the on-off parameter set;

[0079] A fifth determining unit is used to determine the crimping deviation according to the distance between the butted crimping error pin and the FPC leakage pin adjacent to the left;

[0080] The second crimping unit is used to adjust the crimping according to the crimping deviation.

[0081] A fourth aspect of the present application provides an alignment crimping system, characterized in that it includes:

[0082] Processor, memory, input-output unit, and bus;

[0083] The processor is connected to the memory, the input and output unit, and the bus;

[0084] The memory stores a program, and the processor calls the program to execute the second aspect and any optional alignment crimping method of the second aspect.

[0085] A fifth aspect of the present application provides a computer-readable storage medium, on which a program is stored. When the program is executed on a computer, the second aspect and any optional alignment crimping method of the second aspect are executed.

[0086] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0087] The alignment and crimping device in the present application includes an alignment platform, a display screen to be crimped, a shooting module, a pressure head module and an FPC module. The alignment platform is arranged on a plane, the display screen to be crimped is arranged on the side of the alignment platform close to the pressure head module, and the display screen to be crimped is provided with product crimping pins on the side close to the pressure head module. The shooting module includes a camera and a lens, the camera and the lens are connected, and the shooting module is arranged above the alignment platform. The back of the FPC module is provided with an FPC leakage pin, the FPC leakage pin is located on the side facing the alignment platform, and the FPC back window area is provided on both sides of the FPC leakage pin. At least two FPC alignment marks are provided on the FPC back window area. A pressure head window area is provided on the side of the pressure head module facing the alignment platform. The lower side of the pressure head module is connected to the back of the FPC module to form a crimping structure, and the FPC alignment mark is located in the pressure head window area.

[0088] FPC back window areas are provided on both sides of the FPC externally exposed pins, that is, FPC back window areas are provided on both sides of the FPC extension area. An FPC alignment mark is provided on the FPC back window area, and a pressure head window area is provided on the pressure head module, so that after the lower side of the pressure head module is connected to the back of the FPC module to form a crimping structure, the FPC alignment mark is located in the pressure head window area, that is, the FPC alignment mark can be captured by the camera above, and the exposed FPC externally exposed pins can also be captured by the camera. Product crimping pins are provided on one side of the display screen to be crimped, so that the FPC alignment mark can be positioned to adjust the deviation, and secondary positioning can be performed through the product crimping pins and the FPC externally exposed pins, without adding additional camera modules to reduce the cost and complexity of the entire alignment and crimping device.

[0089] Secondly, in the traditional crimping solution, the pressure head module uses transparent acrylic material, the FPC module is attached to the bottom of the pressure head module, the edge of the FPC module is flush with the edge of the pressure head module, and the camera module takes an image of the FPC alignment mark of the FPC module from above the pressure head module through the pressure head module. However, this solution will have the problem of light refraction, and the position of the FPC alignment mark photographed will be different from the actual position, affecting the alignment accuracy of the alignment system. However, this solution solves the detection impact caused by pipeline refraction by setting the pressure head window area and the FPC back window area. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0091] Figure 1 A schematic diagram of an embodiment of the alignment crimping device in the embodiment of the present application;

[0092] Figure 2 This is a schematic diagram of an embodiment of an FPC module in an embodiment of the present application;

[0093] Figure 3 A schematic diagram of an embodiment of a crimping structure in an embodiment of the present application;

[0094] Figure 4 A schematic diagram of an embodiment of pre-crimping of a crimping structure and a display screen to be crimped in an embodiment of the present application;

[0095] Figure 5 A schematic diagram of an embodiment of calculating the pre-crimping deviation of the crimping structure and the display screen to be crimped in the embodiment of the present application;

[0096] Figure 6 A schematic diagram of an embodiment of the alignment crimping method in the embodiment of the present application;

[0097] Figure 7 This is a schematic diagram of the first stage of another embodiment of the alignment crimping method in the embodiment of the present application;

[0098] Figure 8 This is a schematic diagram of the second stage of another embodiment of the alignment crimping method in the embodiment of the present application;

[0099] Fig. 9 This is a schematic diagram of the third stage of another embodiment of the alignment crimping method in the embodiment of the present application;

[0100] Fig.10 A schematic diagram of an embodiment of the alignment crimping system in the embodiment of the present application;

[0101] Fig.11 This is a schematic diagram of an embodiment of the alignment crimping system of the present application. DETAILED DESCRIPTION

[0102] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0103] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0104] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0105] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0106] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0107] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0108] In the prior art, for the compensation process of the display screen, the first thing that needs to be done is the crimping of the display screen. Only after the crimping is completed can the display screen be lit up so that the display screen displays the corresponding detection screen. In the prior art, it is necessary to crimp and light up the pins of the FPC module and the display screen, which requires the shooting device to shoot the pins of the FPC module and the display screen from top to bottom, and confirm the position deviation between the two through the controller, and then perform the crimping process after adjusting the position deviation. Most of the conventional practices of the alignment crimping devices are to fit the FPC module under the pressure head module, but in this method, since the edge of the FPC module is flush with the edge of the pressure head module, the shooting module can only set up an alignment mark on the pressure head module for alignment. This method cannot position the FPC module and the display screen, so the current choice is to set up an alignment mark on the FPC module, but this method is still unable to clearly shoot the alignment mark of the FPC module from the top due to the obstruction of the pressure head module, and can only roughly align the FPC module and the display screen, and cannot determine whether the alignment between the pins is completed. In this method, the shooting module cannot capture the FPC module and the alignment mark on the FPC module from directly above the pressure head module. The only option is to add a shooting module below to capture images from the bottom of the pressure head module upwards, which increases the cost and complexity of the entire alignment crimping device.

[0109] Based on this, the present application discloses an alignment crimping device and crimping method, a crimping system and a storage medium, which are used to reduce the cost and complexity of the entire alignment crimping device.

[0110] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0111] The method of the present application can be applied to a server, a device, a terminal or other devices with logic processing capabilities, and the present application does not limit this. For the convenience of description, the following description is made by taking the execution subject as an example of a terminal.

[0112] See also Figures 1 to 5 The present application provides an embodiment of a positioning crimping device, comprising:

[0113] Alignment platform 1, display screen to be crimped 2, camera module 3, crimping head module 4 and FPC module 5;

[0114] The alignment platform 1 is arranged on a plane, the display screen 2 to be crimped is arranged on a side of the alignment platform 1 close to the pressing head module 4, and the display screen 2 to be crimped is provided with a product crimping pin 6 on a side close to the pressing head module 4;

[0115] The shooting module 3 includes a camera 7 and a lens 8, the camera 7 and the lens 8 are connected, and the shooting module 3 is arranged above the alignment platform 1;

[0116] The back of the FPC module 5 is provided with an FPC external leakage pin 9, and both sides of the FPC external leakage pin 9 are provided with an FPC back window area 10;

[0117] The FPC module 5 is provided with an FPC externally exposed pin 9 at the back thereof, the FPC externally exposed pin 9 being located on the side facing the alignment platform 1, and an FPC back window area 10 being provided on both sides of the FPC externally exposed pin 9;

[0118] At least two FPC alignment marks 11 are provided on the FPC back window area 10;

[0119] A press head window area 12 is provided on one side of the press head module 4 facing the alignment platform;

[0120] The lower side of the pressure head module 4 is connected to the back of the FPC module 5 to form a pressure connection structure, and the FPC alignment mark 11 is located in the pressure head window area 12;

[0121] In this embodiment, the alignment platform 1 (UVW / XYθ platform) is used to hold the display screen 2 to be crimped, and can be displaced, raised and lowered, horizontally moved and rotated. The crimping structure can also be connected to a displacement device to cooperate with the alignment platform 1 to complete the crimping.

[0122] FPC module 5 design Figure 2 As shown, Figure 2 The top view of the FPC module 5 without the pressure head module 4 is shown below:

[0123] 1. The FPC leakage pin 9 and FPC alignment mark 11 of the FPC module 5 need to correspond to the product crimping pin 6 and product alignment mark position one by one.

[0124] 2. The FPC alignment mark 11 is made on the back of the FPC module 5.

[0125] 3. The FPC exposed pin 9 needs to be exposed 0.3 to 0.5 mm on the back and cannot be too long. Too long will reduce the crimping area and there will also be a risk of pin short circuit.

[0126] For pressure head design, please refer to Figure 3 , Figure 3 It is a top view of the crimping structure (including the crimping head module 4 and the FPC module 5). The crimping head design requirements in this embodiment are as follows:

[0127] 1. On both sides of the pressure head module 4, windows need to be opened for the position of the FPC alignment mark 11 area, that is, a pressure head window area is set to expose the FPC alignment mark 11 so that the camera 7 and lens 8 of the shooting module 3 can shoot the FPC alignment mark 11 from above.

[0128] 2. When designing the FPC fixing hole, a distance needs to be reserved so that the edge of the installed pressure head module 4 extends 0.3 to 0.5 mm, so that the camera 7 and lens 8 of the shooting module 3 can capture the FPC leakage pin 9 (such as Figure 1 The pressure head part, Figure 3 The extension cannot be too long. If it is too long, the crimping effect will be poor due to the reduction of the crimping area.

[0129] FPC back window areas 10 are provided on both sides of the FPC externally exposed pin 9, that is, FPC back window areas 10 are provided on both sides of the FPC extension area 13. FPC alignment mark 11 is provided on the FPC back window area 10, and a pressure head window area is provided on the pressure head module 4, so that after the lower side of the pressure head module 4 is connected to the back of the FPC module 5 to form a crimping structure, the FPC alignment mark 11 is located in the pressure head window area, that is, the FPC alignment mark 11 can be captured by the camera above, and the exposed FPC externally exposed pin 9 can also be captured by the camera. A product crimping pin 6 is provided on one side of the display screen 2 to be crimped, so that the FPC alignment mark 11 can be positioned to adjust the deviation, and secondary positioning can be performed through the product crimping pin 6 and the FPC externally exposed pin 9, without adding an additional camera module 3 to reduce the cost and complexity of the entire alignment crimping device.

[0130] Secondly, in the traditional crimping solution, the pressure head module 4 uses transparent acrylic material, the FPC module 5 is attached to the bottom of the pressure head module 4, the edge of the FPC module 5 is flush with the edge of the pressure head module 4, and the shooting module 3 shoots the image of the FPC alignment mark 11 of the FPC module 5 from above the pressure head module 4 through the pressure head module 4, but this solution will have the problem of light refraction, and the position of the FPC alignment mark 11 photographed will be different from the actual position, affecting the alignment accuracy of the alignment system. However, this solution solves the problem of light refraction by setting the pressure head window area and the FPC back window area 10.

[0131] Optionally, the back of the FPC module is provided with exposed FPC externally exposed pins 9;

[0132] A portion of the FPC leakage pin 9 extends outward relative to the edge of the pressure head module 4 , which is defined as the FPC extension area 13 .

[0133] The exposed FPC external pin 9 enables the camera module 3 to take a picture of the FPC external pin 9 and the product crimping pin 6, and then perform a secondary crimping deviation detection. The FPC external pin 9 and the product crimping pin 6 will be displayed in the image, and the position detection of the FPC external pin 9 and the product crimping pin 6 can be performed.

[0134] Optionally, the alignment platform also includes a display screen alignment mark;

[0135] There is a platform pressure head alignment area 14 between the product crimping pin 6 of the display screen 2 to be crimped and the edge of the alignment platform 1;

[0136] The display screen alignment mark is arranged on the platform pressure head alignment area 14 above the alignment platform.

[0137] Since the display screen 2 to be crimped may have deviations during placement, the position of the display screen 2 to be crimped can be determined by comparing the display screen alignment mark on the edge of the alignment platform and the FPC alignment mark 11 on the crimping structure.

[0138] Optionally, a crimping error pin is provided between each FPC leakage pin 11;

[0139] The distance between every two FPC leakage pins 11 is the same;

[0140] The distance between each crimping error pin and the FPC leakage pin 11 adjacent to the left side is different.

[0141] When the crimping is completed, there may be a slight deviation in the overall crimping position, so that the contact surface between the pins does not reach the preset area, for example, the FPC leakage pin 11 is offset to the right by 0.2mm. In order to solve the above problem, a crimping error pin is set on the same side of each FPC leakage pin 11, and the distance between each crimping error pin and the FPC leakage pin is different, for example: {0.01mm, 0.02mm...0.5mm}, and the distance depends on the distance and number of the two FPC leakage pins 11.

[0142] By detecting when the crimp error pin is turned on after the crimp is completed, the distance of the overall offset can be determined.

[0143] See also Figure 6 The present application provides an embodiment of a method for crimping, comprising:

[0144] 601, photographing the display screen to be crimped and the crimping structure on the alignment platform through a photographing module to generate a first detection image;

[0145] The terminal uses a shooting module to shoot the display screen to be crimped and the crimping structure on the alignment platform from top to bottom to generate a first detection image. The first detection image includes the display screen to be crimped and the crimping structure, and there is an alignment FPC alignment mark on the crimping structure.

[0146] 602. Determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image;

[0147] 603. Calculate a first deviation of the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark;

[0148] 604. Control the alignment platform to adjust displacement according to the first deviation;

[0149] At this time, the terminal determines the position of the display screen alignment mark and the FPC alignment mark on the first detection image through an algorithm, and then calculates the position of the display screen to be crimped on the alignment platform based on the position of the display screen alignment mark and the FPC alignment mark and combined with the algorithm, and then determines the first deviation of the display screen to be crimped and the crimping structure, and the alignment platform can be controlled to adjust the displacement according to the first deviation.

[0150] 605. Control the alignment platform to pre-press the display screen and the press-fit structure to be press-fitted;

[0151] The terminal makes the initial position adjustment by comparing the positions of the alignment platform, the display screen to be crimped and the FPC alignment mark. It can be a combination of coarse adjustment and pre-pressure adjustment, or it can be a pre-pressure adjustment directly through the first deviation. The pre-pressure adjustment is to pause the crimping module and the display screen to be crimped before crimping, move the two to a fairly close position, and wait for further deviation calculation.

[0152] 606. Photograph again using a photographing module to generate a second detection image;

[0153] The terminal uses the shooting module to take more accurate photos, and the position of the pin can be clearly detected on the second detection image.

[0154] 607. Determine the positions of the product crimping pins and the FPC exposed pins on the second inspection image;

[0155] The terminal uses an algorithm to detect the positions of the product crimping pins and the FPC exposed pins on the second detection image to generate pin position information.

[0156] 608. Calculate a second deviation of the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin;

[0157] 609. Determine a pin alignment result according to the second deviation;

[0158] The terminal calculates the second deviation of the product crimping pins and the FPC exposed pins according to their positions. The secondary deviation is relatively precise. The terminal controls the alignment platform to adjust the displacement according to the second deviation.

[0159] For details, please refer to Figure 5 , it is necessary to locate according to the product crimping pins and FPC leakage pins. After the positioning is completed, the following is generated Figure 5 It should be noted that Figure 5 The dotted box is just an example. The main dotted box can represent the actual position of the pin area. At this time, the position coordinates of the FPC alignment mark need to be applied again to generate the position relationship between the FPC alignment mark, the product crimping pins and the FPC exposed pins: distance D1, distance D2, distance D3 and distance D4.

[0160] Finally, the deviation is calculated by distance D1, distance D2, distance D3 and distance D4. The above is only one method, and the deviation can also be directly calculated by the relationship between the product crimping pin and the FPC exposed pin, which is not limited here.

[0161] 610. The display screen to be crimped and the crimping structure are crimped according to the pin alignment result.

[0162] After the terminal determines that the deviation adjustment is completed, the terminal crimps the display screen to be crimped and the crimping structure.

[0163] In this embodiment, the camera module is used to first shoot the display screen and the crimping structure to be crimped on the alignment platform to generate a first detection image. The positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image are determined. The first deviation of the display screen and the crimping structure to be crimped is calculated according to the positions of the display screen alignment mark and the FPC alignment mark. The alignment platform is controlled to adjust the displacement according to the first deviation. The alignment platform is controlled to pre-press the display screen and the crimping structure to be crimped. The camera module is used to shoot again to generate a second detection image. The positions of the product crimping pins and the FPC exposed pins on the second detection image are determined. The second deviation of the product crimping pins and the FPC exposed pins is calculated according to the positions of the product crimping pins and the FPC exposed pins. The pin alignment result is determined according to the second deviation. The display screen and the crimping structure to be crimped are crimped according to the pin alignment result.

[0164] By setting the window area, the shooting module can capture the first detection image from top to bottom. The terminal can first determine the position of the display screen to be crimped on the alignment platform through the display screen alignment mark and the FPC alignment mark. When determining the position of the display screen to be crimped and the crimping structure, there is no need to add additional shooting modules, thereby reducing the cost and complexity of the entire alignment and crimping device.

[0165] See also Figure 7 , Figure 8 and Fig. 9 The present application provides an embodiment of a method for crimping, comprising:

[0166] 701, photographing the display screen to be crimped and the crimping structure on the alignment platform through a photographing module to generate a first detection image;

[0167] 702. Determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image;

[0168] 703. Calculate a first deviation of the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark;

[0169] 704. Control the alignment platform to adjust displacement according to the first deviation;

[0170] 705. Control the alignment platform to pre-press the display screen and the press-fit structure to be press-fitted;

[0171] 706. Photograph again by the photographing module to generate a second detection image;

[0172] Steps 701 to 706 in this embodiment are similar to steps 601 to 606 in the aforementioned embodiment, and are not described again here.

[0173] 707. Determine the display screen alignment mark and the FPC alignment mark in the second detection image;

[0174] After the initial adjustment, in the second inspection image taken a second time, the positions of the product crimping pins and the FPC exposed pins are roughly aligned, but there is a large error, which requires fine adjustment. Specifically, the display screen alignment mark and FPC alignment mark in the second inspection image are first determined. The display screen alignment mark and FPC alignment mark are large and the color is quite obvious, which can be easily identified, while the pins are relatively small and it is not easy to detect deviations.

[0175] 708. Roughly position the product crimping pins and the FPC exposed pins respectively according to the display screen alignment mark and the FPC alignment mark, and generate a real-time image of the product pins and a real-time image of the FPC pins;

[0176] After the terminal determines the display screen alignment mark and the FPC alignment mark in the second detection image, because the display screen is basically at the edge of the alignment platform during placement, and the display screen alignment mark is located at the edge of the alignment platform, the position of the product crimping pin can be roughly determined based on the display screen alignment mark.

[0177] The function of the FPC alignment mark is basically the same. The image generated by coarse positioning has a large background area, and precise positioning is required to calculate the deviation.

[0178] 709. Obtain a product pin reference image and an FPC pin reference image from a database, wherein the product pin reference image is a photographed image of pins of the same model as the product crimped pins, and the FPC pin reference image is a photographed image of pins of the same model as the FPC exposed pins;

[0179] Next, the terminal obtains the product pin reference image and the FPC pin reference image from the database. The product pin reference image is a photographed image of the pins with the same model as the product crimping pins, and the FPC pin reference image is a photographed image of the pins with the same model as the FPC exposed pins.

[0180] 710. Perform mean filtering on the product pin real-time image and the product pin reference image to generate a first mean filtered image and a second mean filtered image;

[0181] First, the real-time image of the product pin and the reference image of the product pin are processed, and the real-time image of the product pin and the reference image of the product pin are mean filtered to generate a first mean filtered image and a second mean filtered image. Filtering can remove impurities and is also a key step to increase the contrast between the two.

[0182] 711. Obtain a first standard deviation and a second standard deviation of the first mean filtered image and the second mean filtered image;

[0183] The terminal obtains the first standard deviation σ of the first mean filtered image and the second mean filtered image x and the second standard deviation σ y .

[0184] 712. Calculate contrast data according to the first standard deviation and the second standard deviation;

[0185] The terminal calculates the contrast data according to the first standard deviation and the second standard deviation, and the formula is as follows:

[0186]

[0187] Among them, S(x,y) is the contrast data of the first mean filtered image x and the second mean filtered image y, A1 and A 2 is a contrast parameter, which is determined according to a preset contrast threshold K.

[0188] A 1 =(0.015*K) 2 / 2+K

[0189] A 2 =(0.025+K) 2 +K

[0190] By calculating the contrast data, the difference between the first mean filtered image and the second mean filtered image in the pin area and the non-pin area can be increased. The specific calculation method is shown in the subsequent steps.

[0191] 713. Perform a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image;

[0192] 714. Generate weight data according to the contrast data and the difference image, and generate a contrast variable through the weight data, the contrast data and the difference image;

[0193] The terminal performs a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image, and then calculates the weight data β according to the parameters of the difference image. The formula is as follows:

[0194]

[0195] in, The difference between the highest grayscale and the lowest grayscale of the differential image. The contrast data S(x,y) is generated by calculating the grayscale difference between the reference image and the actual image, and then the weight data β is adjusted by the contrast data S(x,y). By increasing the contrast data, the weight data β can be more accurate.

[0196]

[0197] The terminal generates a contrast variable through weight data β, contrast data S(x, y) and the minimum non-zero grayscale Gmin of the differential image. The contrast data S(x,y) is generated by calculating the grayscale difference between the reference image and the actual image, and then the contrast variable is adjusted by the contrast data S(x,y) Can make contrast variable More accurate.

[0198] 715. Perform weighted processing on the pixels of the differential image according to the weight data and the contrast variable to generate a contrast enhanced image;

[0199] The terminal is based on the weight data β and contrast variables The pixels of the difference image are weighted to generate a contrast-enhanced image.

[0200]

[0201] Among them, Z' is the pixel grayscale of the contrast enhanced image, and Z is the pixel grayscale of the difference image.

[0202] 716. Determine the product pin region in the contrast enhanced image according to a threshold segmentation algorithm;

[0203] 717. Determine the product crimping pin position in the product pin real-time image based on the product pin area of ​​the contrast enhanced image;

[0204] Next, the terminal determines the product pin area based on the threshold segmentation algorithm in the contrast-enhanced image. Since the contrast-enhanced image is exactly the same size as the real-time image of the product pin, the product pin area is directly determined by binarization.

[0205] 718. Perform mean filtering, contrast data calculation, weight data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination on the FPC pin real-time image and the FPC pin reference image;

[0206] Finally, the terminal performs mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination on the FPC pin real-time image and the FPC pin reference image.

[0207] 719. Calculate the second deviation of the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin;

[0208] 720. Determine a pin alignment result according to the second deviation;

[0209] 721. Crimping the display screen to be crimped and the crimping structure according to the pin alignment result;

[0210] Steps 719 to 721 in this embodiment are similar to steps 608 to 610 in the above embodiment and are not described again here.

[0211] 722. Obtain a set of on-off parameters of each crimping error pin, where the distance between each crimping error pin and the FPC leakage pin adjacent to the left is different;

[0212] 723. Determine whether there is a butt-jointed crimping error pin in the on-off parameter set;

[0213] 724. Determine the crimping deviation according to the distance between the crimping error pin with the butt connection and the FPC leakage pin adjacent to the left;

[0214] 725. Make crimping adjustments based on crimping deviation.

[0215] After the terminal performs the initial crimping, the terminal obtains a set of on-off parameters of each crimping error pin, and the distance between each crimping error pin and the adjacent FPC leakage pin on the left is different.

[0216] Because when the crimping is completed, there may be a slight deviation of the overall crimping position, so that the contact surface between the pins does not reach the preset area, for example, the FPC leakage pin 11 is offset to the right by 0.2mm. In order to solve the above problem, a crimping error pin is set on the same side of each FPC leakage pin 11, and the distance between each crimping error pin and the FPC leakage pin is different, for example: {0.01mm, 0.02mm...0.5mm}, and the distance depends on the distance and number of the two FPC leakage pins 11.

[0217] Determine the butted crimping error pins in the on-off parameter set, determine the crimping deviation according to the distance between the butted crimping error pins and the FPC leakage pins adjacent to the left, and finally perform crimping adjustment according to the crimping deviation.

[0218] In this embodiment, the camera module is first used to shoot the display screen to be crimped and the crimping structure on the alignment platform to generate a first detection image. The terminal determines the position of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image. The first deviation of the display screen to be crimped and the crimping structure is calculated according to the position of the display screen alignment mark and the FPC alignment mark. The alignment platform is controlled to adjust the displacement according to the first deviation. The alignment platform is controlled to pre-press the display screen to be crimped and the crimping structure. The camera module is used to shoot again to generate a second detection image.

[0219] Determine the display screen alignment mark and the FPC alignment mark in the second detection image. Roughly locate the product crimping pins and the FPC exposed pins according to the display screen alignment mark and the FPC alignment mark, and generate the product pin real-time image and the FPC pin real-time image. Obtain the product pin reference image and the FPC pin reference image from the database. The product pin reference image is a photographed image of the pins with the same model of the product crimping pins, and the FPC pin reference image is a photographed image of the pins with the same model of the FPC exposed pins. Perform mean filtering on the product pin real-time image and the product pin reference image to generate a first mean filtered image and a second mean filtered image. Obtain the first standard deviation and the second standard deviation of the first mean filtered image and the second mean filtered image. Calculate contrast data according to the first standard deviation and the second standard deviation. Generate weight data according to the contrast data, and generate a contrast variable through the weight data. Perform a difference operation on the first mean filtered image and the second mean filtered image to generate a differential image. Perform weighted processing on the pixels of the differential image according to the weight data and the contrast variable to generate a contrast enhanced image. Determine the product pin area in the contrast enhanced image according to the threshold segmentation algorithm. The product crimping pin position is determined in the product pin real-time image according to the product pin area of ​​the contrast enhanced image. The FPC pin real-time image and the FPC pin reference image are subjected to mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination.

[0220] The second deviation of the product crimping pin and the FPC leakage pin is calculated according to the positions of the product crimping pin and the FPC leakage pin. The pin alignment result is determined according to the second deviation. The display screen to be crimped and the crimping structure are crimped according to the pin alignment result.

[0221] Obtain the on-off parameter set of each crimping error pin, where the distance between each crimping error pin and the adjacent FPC leakage pin on the left is different. Determine that there are butt-jointed crimping error pins in the on-off parameter set. Determine the crimping deviation based on the distance between the butt-jointed crimping error pin and the adjacent FPC leakage pin on the left. Perform crimping adjustment based on the crimping deviation.

[0222] Secondly, by calculating the contrast data of the reference image and the real-time image, the difference image between the reference image and the real-time image is weighted. Since the images only include pins and the environment, there is no very complex structure in the coarse positioning area, the difference between the pin area and other areas is enhanced, so that the pin area can be accurately enhanced, thereby improving the calculation accuracy of the deviation.

[0223] See also Fig.10 The present application provides an embodiment of a method for crimping, comprising:

[0224] The first generating unit 1001 is used to shoot the display screen to be crimped and the crimping structure on the alignment platform through a shooting module to generate a first detection image;

[0225] The first determining unit 1002 is used to determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image;

[0226] The first calculation unit 1003 is used to calculate the first deviation of the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark;

[0227] An adjustment unit 1004 is used to control the alignment platform to adjust the displacement according to the first deviation;

[0228] A pre-pressing unit 1005 is used to control the alignment platform to pre-press the display screen and the crimping structure to be crimped;

[0229] The second generating unit 1006 is used for capturing again through the capturing module to generate a second detection image;

[0230] The second determining unit 1007 is used to determine the positions of the product crimping pins and the FPC exposed pins on the second detection image;

[0231] Optionally, the second determining unit 1007 includes:

[0232] Determine the display screen alignment mark and the FPC alignment mark in the second detection image;

[0233] According to the alignment mark on the display screen and the alignment mark on the FPC, the crimped pins of the product and the exposed pins of the FPC are roughly positioned, and the real-time images of the product pins and the real-time images of the FPC pins are generated;

[0234] Acquire a product pin reference image and an FPC pin reference image from a database, wherein the product pin reference image is a photographed image of pins with the same crimped pin model as the product, and the FPC pin reference image is a photographed image of pins with the same exposed pin model as the FPC;

[0235] Performing mean filtering on the product pin real-time image and the product pin reference image to generate a first mean filtered image and a second mean filtered image;

[0236] Obtaining a first standard deviation and a second standard deviation of the first mean filtered image and the second mean filtered image;

[0237] calculating contrast data based on the first standard deviation and the second standard deviation;

[0238] Generate weight data according to contrast data, and generate contrast variables through weight data;

[0239] Performing a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image;

[0240] The pixels of the difference image are weighted according to the weight data and the contrast variable to generate a contrast enhanced image;

[0241] Determine the product pin area in the contrast enhanced image based on a threshold segmentation algorithm;

[0242] Determine the product crimping pin position in the real-time image of the product pin based on the product pin area of ​​the contrast-enhanced image;

[0243] The FPC pin real-time image and the FPC pin reference image are subjected to mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination.

[0244] The second calculation unit 1008 is used to calculate the second deviation between the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin;

[0245] A third determining unit 1009, configured to determine a pin alignment result according to the second deviation;

[0246] The first crimping unit 1010 is used to crimp the display screen to be crimped and the crimping structure according to the pin alignment result;

[0247] The acquisition unit 1011 is used to acquire a set of on-off parameters of each crimping error pin, where the distance between each crimping error pin and the FPC leakage pin adjacent to the left is different;

[0248] A fourth determining unit 1012 is used to determine whether there are pins with crimping errors in the on-off parameter set;

[0249] A fifth determining unit 1013, configured to determine a crimping deviation according to a distance between the butted crimping error pin and the FPC leakage pin adjacent to the left side;

[0250] The second crimping unit 1014 is used to adjust the crimping according to the crimping deviation.

[0251] See also Fig.11 , the present application provides a positioning crimping system, comprising:

[0252] Processor 1101 , memory 1102 , input / output unit 1103 , and bus 1104 .

[0253] The processor 1101 is connected to the memory 1102 , the input and output unit 1103 , and the bus 1104 .

[0254] The memory 1102 stores a program, and the processor 1101 calls the program to execute the following steps: Figure 6 , Figure 7 , Figure 8 and Fig. 9 The alignment crimping method in.

[0255] The present application provides a computer-readable storage medium, on which a program is stored, and when the program is executed on a computer, the program performs the following steps: Figure 6 , Figure 7 , Figure 8 and Fig. 9 The alignment crimping method in.

[0256] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0257] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0258] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0259] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0260] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

Claims

1. A positioning crimping device, characterized in that: include: Alignment platform, display screen to be crimped, camera module, crimping head module and FPC module; The alignment platform is arranged on a plane, the display screen to be crimped is arranged on a side of the alignment platform close to the pressure head module, and the display screen to be crimped is provided with a product crimping pin on a side close to the pressure head module; The shooting module includes a camera and a lens, the camera and the lens are connected, and the shooting module is arranged above the alignment platform; The back of the FPC module is provided with an FPC leakage pin, the FPC leakage pin is located on a side facing the alignment platform, and FPC back window areas are provided on both sides of the FPC leakage pin; At least two FPC alignment marks are provided on the FPC back window area; A pressure head window area is provided on one side of the pressure head module facing the alignment platform; The lower side of the pressure head module is connected to the back of the FPC module to form a pressure connection structure, and the FPC alignment mark is located in the pressure head window area.

2. The alignment crimping device according to claim 1, characterized in that: The back of the FPC module is provided with exposed FPC externally exposed pins; The FPC leakage pin extends outwardly from the edge of the pressure head module, and is defined as the FPC extension area.

3. The alignment crimping device according to claim 2, characterized in that: The alignment platform also includes a display screen alignment mark; There is a platform pressure head alignment area between the product crimping pins of the display screen to be crimped and the edge of the alignment platform; The display screen alignment mark is arranged on the platform pressure head alignment area above the alignment platform.

4. The alignment crimping device according to claim 3, characterized in that: A crimping error pin is provided between each of the FPC leakage pins; The distance between every two FPC leakage pins is the same; The distance between each of the crimping error pins and the FPC leakage pin adjacent to the left side is different.

5. A method for crimping, applied to the crimping device according to claim 4, characterized in that: include: The camera module is used to shoot the display screen to be crimped and the crimping structure on the alignment platform to generate a first detection image; Determine the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image; Calculating a first deviation between the display screen to be crimped and the crimping structure according to the positions of the display screen alignment mark and the FPC alignment mark; Controlling the alignment platform to adjust displacement according to the first deviation; Control the alignment platform to perform pre-pressing processing on the display screen to be pressed and the pressing structure; Taking pictures again by the shooting module to generate a second detection image; Determine the positions of the product crimping pins and the FPC exposed pins on the second detection image; Calculate a second deviation between the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin; Determine a pin alignment result according to the second deviation; The display screen to be crimped and the crimping structure are crimped according to the pin alignment result.

6. The alignment crimping method according to claim 5, characterized in that: Determining the positions of the product crimping pins and the FPC exposed pins on the second detection image includes: Determine the display screen alignment mark and the FPC alignment mark in the second detection image; Roughly positioning the product crimping pins and the FPC exposed pins respectively according to the display screen alignment mark and the FPC alignment mark, and generating a real-time image of the product pins and a real-time image of the FPC pins; Acquire a product pin reference image and an FPC pin reference image from a database, wherein the product pin reference image is a photographed image of pins with the same model as the crimped pins of the product, and the FPC pin reference image is a photographed image of pins with the same model as the exposed pins of the FPC; Performing mean filtering on the real-time image of the product pins and the reference image of the product pins to generate a first mean filtered image and a second mean filtered image; Obtaining a first standard deviation and a second standard deviation of the first mean filtered image and the second mean filtered image; calculating contrast data according to the first standard deviation and the second standard deviation; Performing a difference operation on the first mean filtered image and the second mean filtered image to generate a difference image; generating weight data according to the contrast data and the difference image, and generating a contrast variable by using the weight data, the contrast data and the difference image; Performing weighted processing on the pixels of the differential image according to the weight data and the contrast variable to generate a contrast enhanced image; determining a product pin region in the contrast enhanced image according to a threshold segmentation algorithm; Determine the product crimping pin position in the product pin real-time image based on the product pin area of ​​the contrast enhanced image; The FPC pin real-time image and the FPC pin reference image are subjected to mean filtering, contrast data calculation, heavy data calculation, contrast variable calculation, difference operation, weighted processing and pin position determination.

7. The alignment crimping method according to claim 5, characterized in that: After the display screen to be crimped and the crimping structure are crimped according to the pin alignment result, the alignment crimping method further includes: Obtaining a set of on-off parameters of each crimping error pin, wherein the distance between each crimping error pin and the FPC leakage pin adjacent to the left side is different; Determining that there are butt-jointed crimping error pins in the on-off parameter set; Determine the crimping deviation according to the distance between the crimping error pin with butt connection and the FPC leakage pin adjacent to the left side; Make crimp adjustments based on crimp deviation.

8. A positioning crimping system, characterized in that: include: A first generating unit is used to shoot the display screen to be crimped and the crimping structure on the alignment platform through a shooting module to generate a first detection image; A first determining unit, used for determining the positions of the display screen alignment mark and the FPC alignment mark of the display screen to be crimped on the first detection image; A first calculation unit, configured to calculate a first deviation between the display screen to be crimped and the crimping structure according to positions of the display screen alignment mark and the FPC alignment mark; an adjusting unit, configured to control the alignment platform to adjust its displacement according to the first deviation; A pre-pressing unit, used for controlling the alignment platform to perform pre-pressing processing on the display screen to be crimped and the crimping structure; A second generating unit, configured to generate a second detection image by photographing again through the photographing module; A second determining unit, used to determine the positions of the product crimping pins and the FPC exposed pins on the second detection image; A second calculation unit is used to calculate a second deviation between the product crimping pin and the FPC exposed pin according to the positions of the product crimping pin and the FPC exposed pin; A third determining unit, configured to determine a pin alignment result according to the second deviation; The first crimping unit is used to crimp the display screen to be crimped and the crimping structure according to the pin alignment result.

9. A positioning crimping system, characterized in that: It includes a processor, a memory, an input-output unit and a bus, wherein the processor is connected to the memory, the input-output unit and the bus; The memory stores a program, and the processor calls the program to execute the alignment crimping method according to any one of claims 5 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program, and when the program is executed on a computer, the alignment and crimping method according to any one of claims 5 to 7 is executed.

Images