Automatic alignment wire plugging system for LVDS (Low Voltage Differential Signaling) signal wire

Abstract

The utility model relates to an LVDS (Low Voltage Differential Signaling) signal line automatic aligning and plugging system which comprises an automatic aligning and plugging mechanism which comprises a PCB (Printed Circuit Board) Xamp; the device comprises an X-axis switching base, a Y-axis switching base, a CCD visual lifting base, a CCD visual alignment plug wire mechanism, a Y-axis fine adjustment mechanism and a PCB Xamp. The Y-axis switching base integrally moves the automatic alignment plug wire mechanism according to an insertion port in the PCB, and the CCD visual lifting base is Xamp along the PCB; the Y-axis switching base conducts Y-direction displacement, the Y-axis fine adjustment mechanism is connected with a lifting air cylinder of the CCD visual lifting base and connected with a second linear sliding rail on the side face of the CCD visual lifting base so as to conduct Z-axis height adjustment, a wire clamping mechanism is arranged at the front end of the CCD visual alignment wire inserting mechanism, and a CCD visual system is installed at the rear end of the CCD visual alignment wire inserting mechanism. A third linear sliding block in the center of the CCD visual alignment wire plugging mechanism is connected to a third linear sliding rail of the Y-axis fine adjustment mechanism. According to the utility model, the overall process time is saved, the efficiency is improved, the product switching time is accelerated, the lighting yield is stabilized, and the problems of personnel operation, rapid switching, restarting and the like are solved.

Description

Technical Field

[0001] This utility model relates to the field of LCD panel connector wiring, specifically an automatic alignment wiring system for LVDS signal lines. Background Technology

[0002] Currently, the LVDS connectors on existing LCD panel driver circuit boards (PCBs) require manual insertion of the LVDS signal cable into the connector until it is properly aligned, followed by manual removal after testing. While a fully automated insertion and alignment compensation mechanism has been designed to meet customer production needs, the small and varied production volumes of customer orders necessitate multiple size switching methods. Therefore, the current method suffers from the following main problems:

[0003] (1) As attached Figure 1 For panel product connectors, with Figure 2 For LVDS signal cables, the punching, manufacturing, and soldering precision requirements vary among manufacturers, making positional misalignment easy. While the error in manual bonding of the cable itself is negligible when manually inserting and removing LVDS signal cables, it becomes significant when using automated insertion devices. Figure 1 and Figure 2 Deviations can easily reduce insertion yield.

[0004] (2) Personnel need to be trained to switch between different product sizes and models. This is not easy for companies with high staff turnover. Frequent changes also waste time and costs. Furthermore, the original automatic plug-in and unplugging did not add visual positioning, which greatly reduced production efficiency.

[0005] (3) In the existing mechanism, not only do we need to make many fixtures to place the LCD panel, but we also need to find a place to place a large number of fixtures. Moreover, the products are changing rapidly and the product life is about 3 months to half a year. The fixtures are being phased out too quickly. Furthermore, the original mechanism is unable to switch modes effectively. Under the same machine conditions, the entire fixture must be removed before the fixture with low light-insertion yield can be used.

[0006] Therefore, in order to accelerate product changeover time and stabilize lamp yield, it would be of great significance to provide a small, precise, automatic alignment and insertion system that can be developed in conjunction with customers. Summary of the Invention

[0007] The purpose of this invention is to address the aforementioned shortcomings by providing an automatic alignment and insertion system for LVDS signal lines. This system can save overall process time, improve efficiency, accelerate product changeover time, and stabilize lamp yield, effectively solving problems related to manual operation, rapid switching, and restart.

[0008] To achieve the above objectives, an automatic alignment and insertion system for LVDS signal lines is designed, including an automatic alignment and insertion mechanism 400. The automatic alignment and insertion mechanism 400 includes a PCB X&Y axis switching base 1, a CCD vision lifting base 2, a CCD vision alignment and insertion mechanism 3, and a Y-axis fine-tuning mechanism 4. The PCB X&Y axis switching base 1 moves the automatic alignment and insertion mechanism 400 as a whole according to the insertion port on the PCB. The bottom of the CCD vision lifting base 2 is locked to a linear slider 1 on the PCB X&Y axis switching base 1, and the linear slider 1 moves along a linear slide rail 1 on the PCB X&Y axis switching base 1 to achieve Y-axis displacement. The Y-axis fine-tuning mechanism 4 is connected to the lifting cylinder of the CCD vision lifting base 2. The tail of the Y-axis fine-tuning mechanism 4 is locked to a linear slider 2, and the linear slider 2 is connected to a linear slide rail 2 on the side of the CCD vision lifting base 2 for Z-axis height adjustment. The front end of the CCD vision alignment and insertion mechanism 3 is a wire clamping mechanism, and the rear end of the CCD vision alignment and insertion mechanism 3 is equipped with a CCD vision system. The linear slider three at the center of the CCD vision alignment and insertion mechanism 3 is connected to the linear slide rail three of the Y-axis fine-tuning mechanism 4.

[0009] Furthermore, the CCD vision alignment and insertion mechanism 3 includes an LVDS wire clamping slot 301, a stepper motor push extension rod 302, a CCD automatic alignment base 303, and a stepper motor 305. A linear slider 3 is fixedly locked below the CCD automatic alignment base 303 and connected to the linear slide rail 3 of the Y-axis fine adjustment mechanism 4 through the linear slider 3. The front end of the CCD automatic alignment base 303 is provided with the LVDS wire clamping slot 301, and the rear end of the CCD automatic alignment base 303 is equipped with a stepper motor 305. The output end of the stepper motor 305 is connected to the stepper motor push extension rod 302. The stepper motor push extension rod 302 points towards the LVDS wire clamping slot 301. The stepper motor push extension rod 302 is used to cooperate with the stepper motor 305 and use the stepper motor 305 to provide forward power to perform the insertion action.

[0010] Furthermore, the CCD vision alignment and insertion mechanism 3 also includes a CCD vision alignment system 304, which includes, but is not limited to, a CCD vision camera. The CCD vision alignment system 304 is installed on the rear side of the CCD automatic alignment base 303. The CCD vision alignment system 304 is electrically connected to the PCB angle compensation device 5. The CCD vision alignment system 304 is used to compensate for connector errors in panel products and provides deviation data to the PCB angle compensation device 5 for angle compensation.

[0011] Furthermore, the front end of the LVDS wire clamping groove 301 is provided with a step by milling, and the step is used to increase the stability during locking. The stepper motor 305 is controlled by PLC to control the forward distance and force.

[0012] Furthermore, the automatic alignment and insertion mechanism 400 also includes a PCB angle compensation device 5. The PCB angle compensation device 5 is installed on the PCB X&Y axis switching base 1. The PCB angle compensation device 5 is used to cooperate with the CCD vision alignment and insertion mechanism 3 to perform displacement deviation compensation to adjust the angle of the panel connector. The CCD vision alignment and insertion mechanism 3 inserts its front end LVDS wire into the panel connector after keeping it horizontal with the panel connector through the PCB angle compensation device 5.

[0013] Furthermore, the PCB angle compensation device 5 includes a PCB adsorption base 501, a clamping step 502, and a second stepper motor 503. The PCB adsorption base 501 is used to adsorb irregular PCBs before clamping. The front end of the PCB adsorption base 501 is processed with an angled clamping step 502. The rear left and right sides of the PCB adsorption base 501 are respectively provided with second stepper motors 503 and connected to the output end of the second stepper motors 503. The second stepper motors 503 on both sides are rotated around the center of the PCB adsorption base 501 and compensate for the angle offset by advancing a straight distance.

[0014] Furthermore, it also includes an automatic switching platform 200 and an adjustable light box 300. The automatic switching platform 200 is mounted on the adjustable light box 300. An LCD panel 100 is placed on the automatic switching platform 200. The automatic alignment and insertion mechanism 400 is located on one side of the automatic switching platform 200 and inserts an LVDS signal cable into the LCD panel 100.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] (1) The CCD vision alignment and insertion mechanism of this utility model has a small range of motion, which can save operation time, thereby saving the overall process time, improving efficiency, accelerating product switching time and stabilizing the lamp yield.

[0017] (2) This utility model effectively solves problems such as personnel operation, rapid switching, and restart, and improves the utilization rate;

[0018] (3) The CCD vision alignment and insertion mechanism of this utility model is equipped with position and angle compensation, which can fully absorb the error between products;

[0019] (4) This utility model, when combined with visual alignment, can accurately absorb product precision errors;

[0020] (5) The wire fixing method of this utility model is different. Combining the advantages of the quick replacement fixing mechanism, it is upgraded to a quick wire clamping mechanism, which can greatly shorten the original replacement production time of 3-4 days to within 6 hours.

[0021] (6) This utility model has high repeatability and great switching flexibility, and belongs to flexible production, which is worth promoting and applying. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connectors for existing LCD panel products;

[0023] Figure 2 This is a schematic diagram of the LVDS signal line structure;

[0024] Figure 3a This is an application diagram (assembly diagram) of this utility model;

[0025] Figure 3b This is a schematic diagram illustrating the application of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the CCD vision alignment and insertion mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the PCB angle compensation device of this utility model;

[0029] In the diagram: 1. PCB X&Y axis switching base; 2. CCD vision lifting base; 3. CCD vision alignment and insertion mechanism; 4. Y-axis fine-tuning mechanism; 5. PCB angle compensation device; 301. LVDS wire clamping slot; 302. Stepper motor push extension rod; 303. CCD automatic alignment base; 304. CCD vision alignment system; 305. Stepper motor one; 501. PCB adsorption base; 502. Clamping step; 503. Stepper motor two; 100. LCD panel; 200. Automatic switching platform; 300. Adjustable light box; 400. Automatic alignment and insertion mechanism. Detailed Implementation

[0030] This utility model provides an automatic alignment and insertion system for LVDS signal cables, including an automatic alignment and insertion mechanism 400. The automatic alignment and insertion mechanism 400 includes a PCB X&Y axis switching base 1, a CCD vision lifting base 2, a CCD vision alignment and insertion mechanism 3, and a Y-axis fine-tuning mechanism 4. The PCB X&Y axis switching base 1 moves the automatic alignment and insertion mechanism 400 according to the insertion port on the PCB. The bottom of the CCD vision lifting base 2 is locked to a linear slider 1 on the PCB X&Y axis switching base 1, and the linear slider 1 moves along a linear slide rail 1 on the PCB X&Y axis switching base 1 to adjust the Y-axis. The Y-axis fine-tuning mechanism 4 is connected to the lifting cylinder of the CCD vision lifting base 2. The tail of the Y-axis fine-tuning mechanism 4 is locked to a linear slider 2, and the linear slider 2 is connected to a linear slide rail 2 on the side of the CCD vision lifting base 2 for Z-axis height adjustment. The front end of the CCD vision alignment and insertion mechanism 3 is a cable clamping mechanism, and the rear end of the CCD vision alignment and insertion mechanism 3 is equipped with a CCD vision system. The linear slider three at the center of the CCD vision alignment and insertion mechanism 3 is connected to the linear slide rail three of the Y-axis fine-tuning mechanism 4.

[0031] The CCD vision alignment and insertion mechanism 3 includes an LVDS cable clamping slot 301, a stepper motor extension rod 302, a CCD automatic alignment base 303, a CCD vision alignment system 304, and a stepper motor 305. A linear slider 3 is fixedly locked below the CCD automatic alignment base 303 and connected to the linear slide rail 3 of the Y-axis fine-tuning mechanism 4 via the linear slider 3. The front end of the CCD automatic alignment base 303 has the LVDS cable clamping slot 301, and the rear end of the CCD automatic alignment base 303 is equipped with a stepper motor 305. The output end of the stepper motor 305 is connected to the stepper motor extension rod 302, which points towards the LVDS cable clamping slot 301. The motor-driven extension rod 302 is used to cooperate with the stepper motor 305 and uses the stepper motor 305 to provide forward power for wire insertion. The CCD vision alignment system 304 includes, but is not limited to, a CCD vision camera. The CCD vision alignment system 304 is installed on the rear side of the CCD automatic alignment base 303. The CCD vision alignment system 304 is electrically connected to the PCB angle compensation device 5. The CCD vision alignment system 304 is used to compensate for the connector error of the panel product and provide the deviation data to the PCB angle compensation device 5 for angle compensation. The front end of the LVDS wire clamping groove 301 is provided with a step by milling, and the step is used to increase the stability during locking. The stepper motor 305 is controlled by the PLC to control the forward distance and force.

[0032] The automatic alignment and insertion mechanism 400 also includes a PCB angle compensation device 5. The PCB angle compensation device 5 is mounted on the PCB X&Y axis switching base 1. The PCB angle compensation device 5 is used in conjunction with the CCD vision alignment and insertion mechanism 3 to compensate for displacement deviation and adjust the angle of the panel connector. The CCD vision alignment and insertion mechanism 3 uses the PCB angle compensation device 5 to ensure that its front-end LVDS wire is horizontal with the panel connector before insertion. The PCB angle compensation device 5 includes a PCB adsorption base 501, a clamping step 502, and a second stepper motor 503. The PCB adsorption base 501 is used to adsorb irregular PCBs before clamping. The front end of the PCB adsorption base 501 has an angled clamping step 502. The rear left and right sides of the PCB adsorption base 501 are respectively equipped with second stepper motors 503, and the second stepper motors 503 are connected to their output ends. The second stepper motors 503 on both sides rotate around the center of the PCB adsorption base 501, compensating for angular offset by advancing a linear distance.

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0034] As attached Figure 3a and attached Figure 3b As shown, this utility model is mainly applied to the LCD panel screen lighting test process. It belongs to the automatic wiring device of automatic screen detection equipment. It consists of an LCD panel 100, an automatic switching platform 200, an adjustable light box 300, and an automatic alignment wiring mechanism 400. The automatic switching platform 200 is installed on the adjustable light box 300. The LCD panel 100 is placed on the automatic switching platform 200. The automatic alignment wiring mechanism 400 is located on one side of the automatic switching platform 200 and inserts the LVDS signal cable into the LCD panel 100.

[0035] As attached Figure 4 As shown, the automatic alignment and insertion mechanism consists of the following components:

[0036] PCB X&Y axis switching base 1: The overall automatic alignment and insertion mechanism moves according to the insertion port (connector) on the PCB.

[0037] CCD vision lifting base 2: After the bottom and linear slider are locked, it is connected to the linear slide rail of the PCB X&Y axis switching base to perform Y-axis displacement. The PCB angle & lifting base is equipped with a servo motor, which can effectively cooperate with the CCD vision alignment and insertion mechanism to compensate for the overall offset value and then adjust the Z-axis height.

[0038] CCD vision alignment and insertion mechanism 3: The front end is a wire clamping mechanism, and the rear end is equipped with a CCD vision system for image interpretation. The central linear slider is connected to the linear slide rail of the Y-axis fine adjustment mechanism to accommodate the slight differences in the position of each product.

[0039] Y-axis fine-tuning mechanism 4: mainly connected to the CCD vision lifting base, with a tail-locking linear slider connected to the CCD vision lifting base.

[0040] PCB Angle Compensation Device 5: Panel connectors may have slight displacement and angle differences during manufacturing. To avoid reduced yield due to angle deviation during insertion, the device uses a CCD vision alignment and insertion mechanism to compensate for displacement and offset. This effectively adjusts the angle of the panel connector, ensuring that the LVDS wire at the front end of the CCD vision alignment and insertion mechanism and the panel connector are horizontal before insertion, significantly improving the wire insertion yield.

[0041] As attached Figure 5 As shown, the CCD vision alignment interpolation mechanism consists of the following components:

[0042] LVDS wire clamping groove 301: The LVDS wire handle is placed here manually, and the step is cleverly used with milled groove to increase the stability when locking. The cylinder below is used to effectively and quickly switch the worn wire.

[0043] Stepper motor push extension rod 302: Used to cooperate with stepper motor, with the stepper motor providing forward power to perform wire insertion action, and the forward distance and force can be controlled by PLC.

[0044] CCD Automatic Alignment Base 303: The fixed linear slider below the base is used to connect to the linear slide rail of the Y-axis fine-tuning mechanism.

[0045] CCD Vision Alignment System 304: A high-precision vision system that can effectively compensate for connector errors in panel products, export and report deviation data, and provide a PCB angle compensation device for effective angle compensation.

[0046] Stepper motor 305: Provides forward power for wire insertion, and the forward distance and force can be controlled by PLC.

[0047] As attached Figure 6 As shown, the PCB angle compensation device consists of the following components:

[0048] PCB Adsorption Base 501: Used to adsorb irregular PCBs before clamping, to avoid warping and causing the connector to be unable to be horizontal or to be poorly clamped.

[0049] Clamping Step 502: Due to the small PCB thickness and to avoid misalignment or poor clamping when the connector is inserted, a small angled step is added during the processing of the adsorption base to reduce the situation where clamping is not possible due to the small spacing of the front panel traces (COF).

[0050] Stepper Motor 2 503: There is a stepper motor on each of the left and right sides. With the center of the PCB adsorption base as the rotation axis, the stepper motors on both sides advance in a straight line to compensate for angular deviation.

[0051] The operation of this utility model can be carried out in the following steps: Select the corresponding signal line according to the product requirements and fix the corresponding signal line to the front end of the CCD vision alignment and insertion mechanism; use the CCD vision alignment and insertion mechanism to take a picture of the signal line insertion port of the product and correct the overall angle of the PCB angle compensation device; adjust the insertion origin position compensation of the mechanism according to the offset of the picture data of the CCD vision alignment and insertion mechanism compared with the origin; move the entire mechanism to the insertion position and insert it by the CCD vision alignment and insertion mechanism. After the insertion is completed, power on the signal line and light it up; after the test screen is completed, the CCD vision alignment and insertion mechanism retracts the signal line and the entire mechanism leaves the insertion position.

[0052] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0053] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.

Claims

1. An automatic alignment and insertion system for LVDS signal lines, comprising an automatic alignment and insertion mechanism (400), characterized in that: The automatic alignment and insertion mechanism (400) includes a PCB X&Y axis switching base (1), a CCD vision lifting base (2), a CCD vision alignment and insertion mechanism (3), and a Y-axis fine-tuning mechanism (4). The PCB X&Y axis switching base (1) moves the automatic alignment and insertion mechanism (400) according to the insertion port on the PCB. The bottom of the CCD vision lifting base (2) is locked to a linear slider on the PCB X&Y axis switching base (1), and the linear slider moves along a linear slide rail on the PCB X&Y axis switching base (1) in the Y-axis direction. The Y-axis fine-tuning mechanism (4) is connected to the lifting cylinder of the CCD vision lifting base (2). The tail of the Y-axis fine-tuning mechanism (4) is locked to a linear slider, and the linear slider is connected to a linear slide rail on the side of the CCD vision lifting base (2) for Z-axis height adjustment. The front end of the CCD vision alignment and insertion mechanism (3) is a wire clamping mechanism, and the rear end of the CCD vision alignment and insertion mechanism (3) is equipped with a CCD vision system. The linear slider three at the center of the CCD vision alignment and insertion mechanism (3) is connected to the linear slide rail three of the Y-axis fine adjustment mechanism (4).

2. The LVDS signal line automatic alignment and insertion system as described in claim 1, characterized in that: The CCD vision alignment and insertion mechanism (3) includes an LVDS wire clamping groove (301), a stepper motor push extension rod (302), a CCD automatic alignment base (303), and a stepper motor (305). The CCD automatic alignment base (303) has a linear slider three fixedly locked below it and is connected to the linear slide rail three of the Y-axis fine adjustment mechanism (4) through the linear slider three. The front end of the CCD automatic alignment base (303) is provided with an LVDS wire clamping groove (301), and the rear end of the CCD automatic alignment base (303) is equipped with a stepper motor (305). The output end of the stepper motor (305) is connected to the stepper motor push extension rod (302). The stepper motor push extension rod (302) points to the LVDS wire clamping groove (301). The stepper motor push extension rod (302) is used to cooperate with the stepper motor (305) and use the stepper motor (305) to provide forward power to perform the insertion action.

3. The LVDS signal line automatic alignment and insertion system as described in claim 2, characterized in that: The CCD vision alignment and insertion mechanism (3) also includes a CCD vision alignment system (304), which includes, but is not limited to, a CCD vision camera. The CCD vision alignment system (304) is installed on the rear side of the CCD automatic alignment base (303). The CCD vision alignment system (304) is electrically connected to the PCB angle compensation device (5). The CCD vision alignment system (304) is used to supplement the connector error of the panel product and provide the deviation data to the PCB angle compensation device (5) for angle compensation.

4. The LVDS signal line automatic alignment and insertion system as described in claim 2, characterized in that: The LVDS wire clamping groove (301) has a step at the front end through milling, and the step is used to increase the stability when locking. The stepper motor (305) is controlled by PLC to advance the distance and force.

5. The LVDS signal line automatic alignment and insertion system as described in any one of claims 1 to 4, characterized in that: The automatic alignment and insertion mechanism (400) also includes a PCB angle compensation device (5). The PCB angle compensation device (5) is installed on the PCB X&Y axis switching base (1). The PCB angle compensation device (5) is used to cooperate with the CCD vision alignment and insertion mechanism (3) to perform displacement deviation compensation to adjust the angle of the panel connector. The CCD vision alignment and insertion mechanism (3) inserts its front end LVDS wire into the panel connector after the PCB angle compensation device (5) keeps it horizontal.

6. The LVDS signal line automatic alignment and insertion system as described in claim 5, characterized in that: The PCB angle compensation device (5) includes a PCB adsorption base (501), a clamping step (502), and a stepper motor (503). The PCB adsorption base (501) is used to adsorb the PCB before clamping. The front end of the PCB adsorption base (501) is processed with an angled clamping step (502). The rear end of the PCB adsorption base (501) is provided with stepper motors (503) on the left and right sides respectively, and is connected to the output end of the stepper motors (503). The stepper motors (503) on both sides are rotated around the center of the PCB adsorption base (501) and compensate for the angle offset by advancing the linear distance.

7. The LVDS signal line automatic alignment and insertion system as described in claim 5, characterized in that: The PCB angle compensation device (5) includes a PCB adsorption base (501), a clamping step (502), and a stepper motor (503). The PCB adsorption base (501) is used to adsorb the PCB before clamping. The front end of the PCB adsorption base (501) is processed with an angled clamping step (502). The rear end of the PCB adsorption base (501) is provided with stepper motors (503) on the left and right sides respectively, and is connected to the output end of the stepper motors (503). The stepper motors (503) on both sides are rotated around the center of the PCB adsorption base (501) and compensate for the angle offset by advancing the linear distance.

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