Full-automatic feeding and welding detection machine for mobile phone screen and use method of full-automatic feeding and welding detection machine

Abstract

The invention discloses a full-automatic feeding and welding detection machine for mobile phone screens and a using method of the full-automatic feeding and welding detection machine. Comprising a pressure welding head, an FPC arrangement jig, a jig carrying mechanism, an FPC arrangement mechanism, a feeding positioning mechanism, a feeding and discharging linear motor carrying arm, a CCD visual alignment mechanism, a soldering flux smearing mechanism, a pulse hot pressure welding mechanism, a bonding pad cleaning mechanism, an AOI detection / height measurement mechanism, a discharging carrying arm and an alcohol storage mechanism. According to the invention, the FPC can be automatically tidied by simulating human hands, and the production efficiency is improved; the feeding positioning mechanism is adopted, so that stable, reliable and damage-free product alignment can be guaranteed; a loading and unloading linear motor carrying arm is adopted for transferring products between processing stations, so that the stability and the high efficiency are realized; cCD visual precise positioning is adopted, and a soldering flux smearing mechanism is matched, so that precise control over soldering flux is achieved; a bonding pad cleaning mechanism is designed, so that bonding pad cleaning can be automatically completed, and the automation degree is high; the AOI detection / height measurement mechanism is adopted for product detection, the precision is high, and the detection speed is high.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to a mobile phone screen full-automatic feeding welding detection machine and a use method thereof. Background Art

[0002] Mobile phone screens are also called display screens, which are used to display images and colors. The screen size is calculated based on the screen diagonal, usually in inches, which refers to the length of the screen diagonal. Screen material As mobile phone color screens become more and more popular, the material of mobile phone screens is becoming more and more important. Mobile phone color screens vary due to different LCD quality and R&D technologies. There are roughly several types of mobile phone screens, including TFT, TFD, UFB, STN and OLED. Generally speaking, the more colors that can be displayed, the more complex the image displayed by the mobile phone, and the richer the level of the picture; as mobile phone color screens become more and more popular, the material of mobile phone screens is becoming more and more important. In addition to the above-mentioned major categories of LCD, some other LCDs can be seen on some mobile phones, such as Japan SHARP's GF screen and CG (continuous crystalline silicon) LCD. The two LCDs are completely different types. GF ​​is an improvement on STN, which can improve the brightness of LCD, while CG is a high-precision and high-quality LCD that can achieve a resolution of QVGA (240×320) pixels.

[0003] In the production process of mobile phones, the screen is an extremely important component. The FPC part of the mobile phone screen needs to be welded. The traditional welding method has a low degree of automation and requires manual arrangement of the FPC and manual cleaning of the pads, which is inefficient.

[0004] Therefore, how to provide a mobile phone screen fully automatic feeding welding inspection machine and its use method to solve the problems existing in the prior art is of great significance to its application. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a mobile phone screen fully automatic loading welding inspection machine and a method of using it to solve the problem.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mobile phone screen fully automatic feeding welding inspection machine, including a pressure welding head, an FPC arrangement fixture, a fixture carrying mechanism, an FPC arrangement mechanism, a feeding positioning mechanism, a loading and unloading linear motor conveying arm, a CCD visual alignment mechanism, a solder flux coating mechanism, a pulse hot pressing welding mechanism, a pad cleaning mechanism, an AOI detection / height measurement mechanism, a feeding conveying arm, and an alcohol storage mechanism;

[0008] Preferably, the jig transport mechanism includes a servo motor and a linear module, and the FPC finishing jig transport mechanism is used for the module to drive the FPC finishing jig to move to each welding process position.

[0009] Preferably, the FPC arranging mechanism includes a motor, a screw rod, a cylinder, and a clamp, and the FPC arranging mechanism is used to realize 90-degree flipping of the product, automatic arranging, lifting of the backlight FPC, alignment of two FPC positions, and adsorption and fixation of the FPC;

[0010] Preferably, the feeding positioning mechanism includes a servo motor, a stepper motor, a linear bearing, an alignment roller, and a ball screw, and the feeding positioning mechanism is used to achieve three-side positioning and height lifting of the product.

[0011] Preferably, the loading and unloading linear motor conveying arm includes a linear motor, a linear guide rail, a cylinder, a suction nozzle, etc. The loading and unloading linear motor conveying arm is used to realize belt conveying and high-speed conveying of loading and unloading materials before and after product welding.

[0012] Preferably, the CCD vision alignment mechanism includes a servo motor, a CCD, and a linear module. The CCD vision alignment mechanism realizes the transportation of the CCD vision mechanism, high-speed and accurate movement, and high-precision positioning of the FPC.

[0013] Preferably, the pad cleaning mechanism comprises a servo motor, a linear module and a cleaning device. The pad cleaning mechanism is used to clean the pad. The servo motor and the linear module are used to carry the cleaning device, and the movement is high-speed and precise.

[0014] Preferably, the AOI detection / height measurement mechanism includes a servo motor, a screw rod, a guide rail, an AOI detection system, a contact height gauge, and a CCD detection. The AOI detection / height measurement mechanism is used to detect poor welding (mainly including insufficient tin, bridging tin, broken tin, misalignment, etc.).

[0015] Preferably, the unloading conveying arm adopts a stepping motor, a linear guide rail, and a lifting cylinder to realize material picking, and the unloading conveying arm conveys the product to the unloading belt and the NG product storage belt.

[0016] A mobile phone screen fully automatic feeding welding inspection machine, the use method of which comprises the following steps:

[0017] S1, the robot automatically loads the material to the finishing fixture;

[0018] S2, the FPC sorting mechanism sorts the FPC;

[0019] S3, CCD visual precise positioning;

[0020] S4, automatically apply flux and then perform pulse hot pressing welding;

[0021] S5. Use the unloading robot arm to carry out product handling;

[0022] S6, the pad cleaning mechanism automatically cleans the pad;

[0023] S7, AO I product inspection and height measurement;

[0024] S8, NG products are stored and qualified products are discharged.

[0025] Preferably, in S4, the welding temperature is: 0°C-500°C, the accuracy is ±3°C, pulse heating is adopted, and the welding thickness is: ≤0.4mm.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention can simulate the automatic arrangement of FPC by human hands, including the actions of pushing up, clamping and fixing the FPC, etc., without the need for manual arrangement of the FPC, thereby improving production efficiency.

[0028] 2. The feeding positioning mechanism used in the present invention can ensure that the product alignment is stable, reliable and damage-free.

[0029] 3. The present invention adopts a loading and unloading linear motor conveying arm to transfer products between processing stations, which is stable and efficient.

[0030] 4. The present invention adopts CCD vision for precise positioning and cooperates with a flux applying mechanism to achieve precise control of the flux.

[0031] 5. The present invention is designed with a pad cleaning mechanism which can automatically clean the pad, and has a high degree of automation.

[0032] 6. The present invention adopts AOI detection / height measurement mechanism to carry out product detection, which has high accuracy and fast detection speed.

[0033] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0034] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0036] Figure 1 It is a structural schematic diagram of the present invention; DETAILED DESCRIPTION

[0037] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0038] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0040] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0041] See also Figure 1The present invention provides a technical solution of a mobile phone screen fully automatic feeding welding inspection machine and a method of using the same: comprising a pressure welding head, an FPC arrangement jig, a jig carrying mechanism, an FPC arrangement mechanism, a feeding positioning mechanism, a loading and unloading linear motor conveying arm, a CCD visual alignment mechanism, a solder flux coating mechanism, a pulse hot pressing welding mechanism, a pad cleaning mechanism, an AOI detection / height measurement mechanism, a feeding conveying arm, and an alcohol storage mechanism;

[0042] The fixture transport mechanism includes a servo motor and a linear module. The FPC finishing fixture transport mechanism is used to drive the FPC finishing fixture to move to each welding process position.

[0043] The FPC sorting mechanism includes a motor, a screw rod, a cylinder, and a clamp. The FPC sorting mechanism is used to achieve 90-degree flipping of the product, automatic sorting, lifting of the backlight FPC, alignment of two FPC positions, and FPC adsorption and fixation;

[0044] The loading and positioning mechanism includes a servo motor, a stepper motor, a linear bearing, an alignment roller, and a ball screw. The loading and positioning mechanism is used to achieve three-side positioning and height lifting of the product.

[0045] The loading and unloading linear motor conveying arm includes a linear motor, a linear guide, a cylinder, a suction nozzle, etc. The loading and unloading linear motor conveying arm is used to realize belt conveying and high-speed conveying of loading and unloading materials before and after product welding.

[0046] The CCD vision alignment mechanism includes a servo motor, CCD, and a linear module. The CCD vision alignment mechanism realizes the transportation of the CCD vision mechanism, high-speed and accurate movement, and high-precision positioning of the FPC.

[0047] The pad cleaning mechanism includes a servo motor, a linear module and a cleaning device. The pad cleaning mechanism is used to clean the pad. The servo motor and the linear module are used to carry the cleaning device, and the movement is high-speed and precise.

[0048] The AOI detection / height measurement mechanism includes a servo motor, a lead screw, a guide rail, an AOI detection system, a contact height gauge, and a CCD detection. The AOI detection / height measurement mechanism is used to detect poor welding (mainly including insufficient tin, bridging tin, broken tin, and misalignment, etc.).

[0049] The unloading conveying arm adopts stepping motor, linear guide rail and lifting cylinder to realize material picking. The unloading conveying arm conveys the product to the unloading belt and NG product storage belt.

[0050] The method of use includes the following steps:

[0051] S1, the robot automatically loads the material to the finishing fixture;

[0052] S2, the FPC sorting mechanism sorts the FPC;

[0053] S3, CCD visual precise positioning;

[0054] S4, automatically apply flux and then perform pulse hot pressing welding;

[0055] S5. Use the unloading robot arm to carry out product handling;

[0056] S6, the pad cleaning mechanism automatically cleans the pad;

[0057] S7, AO I product inspection and height measurement;

[0058] S8, NG products are stored and qualified products are discharged.

[0059] In S4, welding temperature: 0℃-500℃, accuracy ±3℃, pulse heating, welding thickness: ≤0.4mm.

[0060] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A mobile phone screen fully automatic feeding welding inspection machine, characterized by: It includes a pressure welding head, an FPC sorting jig, a jig carrying mechanism, an FPC sorting mechanism, a loading and positioning mechanism, a loading and unloading linear motor conveying arm, a CCD visual alignment mechanism, a flux applying mechanism, a pulse hot pressing welding mechanism, a pad cleaning mechanism, an AOI detection / height measurement mechanism, a material unloading conveying arm, and an alcohol storage mechanism.

2. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 1, characterized in that: The jig transport mechanism includes a servo motor and a linear module. The FPC finishing jig transport mechanism is used for the module to drive the FPC finishing jig to move to each welding process position.

3. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 2, characterized in that: The FPC arranging mechanism includes a motor, a screw rod, a cylinder, and a clamp. The FPC arranging mechanism is used to realize 90-degree flipping of the product, automatic arranging, lifting of the backlight source FPC, alignment of two FPC positions, and FPC adsorption and fixation.

4. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 3, characterized in that: The feeding positioning mechanism includes a servo motor, a stepping motor, a linear bearing, an alignment roller, and a ball screw. The feeding positioning mechanism is used to achieve three-side positioning and height lifting of the product.

5. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 4, characterized in that: The loading and unloading linear motor conveying arm includes a linear motor, a linear guide rail, a cylinder, a suction nozzle, etc. The loading and unloading linear motor conveying arm is used to realize belt conveying and high-speed conveying of loading and unloading materials before and after product welding.

6. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 5, characterized in that: The CCD vision alignment mechanism comprises a servo motor, a CCD, and a linear module. The CCD vision alignment mechanism realizes the transportation of the CCD vision mechanism, high-speed and accurate movement, and high-precision positioning of the FPC.

7. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 6, characterized in that: The pad cleaning mechanism comprises a servo motor, a linear module and a cleaning device. The pad cleaning mechanism is used to clean the pad. The servo motor and the linear module are used to carry the cleaning device, and the movement is high-speed and precise.

8. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 7, characterized in that: The AOI detection / height measurement mechanism includes a servo motor, a lead screw, a guide rail, an AOI detection system, a contact height gauge, and a CCD detection. The AOI detection / height measurement mechanism is used to detect poor welding (mainly including insufficient tin, bridging tin, broken tin, and misalignment).

9. A mobile phone screen fully automatic feeding welding inspection machine as claimed in claim 8, characterized in that: The unloading conveying arm adopts a stepping motor, a linear guide rail, and a lifting cylinder to realize material picking. The unloading conveying arm conveys the product to the unloading belt and the NG product storage belt.

10. A mobile phone screen fully automatic feeding welding inspection machine as described in claims 1-9, wherein the method of using the machine comprises the following steps: S1, the robot automatically loads the material to the finishing fixture; S2, the FPC sorting mechanism sorts the FPC; S3, CCD visual precise positioning; S4, automatically apply flux and then perform pulse hot pressing welding; S5. Use the unloading robot arm to carry out product handling; S6, the pad cleaning mechanism automatically cleans the pad; S7, AOI product inspection and height measurement; S8, NG products are stored and qualified products are discharged. In S4, the welding temperature is: 0°C-500°C, the accuracy is ±3°C, pulse heating is adopted, and the welding thickness is: ≤0.4mm.

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