Keyboard appearance inspection equipment

Abstract

This utility model provides a keyboard appearance inspection device, belonging to the field of keyboard manufacturing technology. It includes a support assembly comprising a housing, a support platform fixedly connected to the top of the housing, a support plate fixedly connected to the middle of the support platform, and a positioning mold seat slidably connected to the side wall of the support plate. The inspection assembly includes a column fixedly connected to the side wall of the support platform, a main support rod installed on the side wall of the column, a main extension rod fixedly connected to the end of the main support rod, a connector fixedly connected to the end of the main extension rod, and a vision sensor adapted to be installed in the middle of the connector. The advantages of this utility model are: through the combined use of the support assembly and the inspection assembly, along with an adjustable-angle vision sensor, high-precision inspection of the keyboard appearance is achieved. The entire inspection process can be completed with simple operation, effectively preventing interference from external dust and light. The equipment can adapt to the inspection needs of keyboards of different sizes and models, and has good scalability.

Description

Technical Field

[0001] This utility model belongs to the field of keyboard manufacturing technology, specifically relating to keyboard appearance inspection equipment. Background Technology

[0002] In the information age, keyboards, as important human-computer interaction devices, are experiencing continuous market demand growth and expanding production scale. To ensure product quality, keyboard appearance inspection has become an indispensable and crucial step in the production process.

[0003] Traditional keyboard appearance inspection relies primarily on manual visual inspection. Inspectors must use their eyes and experience to judge defects such as missing keys, misaligned keycaps, scratches, and stains on the keyboard surface. This method is not only inefficient and unable to meet the inspection needs of large-scale production, but it is also greatly affected by the subjective factors of the inspectors, easily leading to missed or false positives, resulting in inconsistent product quality. In addition, prolonged visual inspection can cause visual fatigue for inspectors, further reducing the accuracy of the inspection. Utility Model Content

[0004] The purpose of this invention is to provide a keyboard appearance inspection device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Keyboard appearance inspection equipment, including,

[0007] The support assembly includes a housing, a support platform fixedly connected to the top of the housing, a support plate fixedly connected to the middle of the support platform, and a positioning mold base slidably connected to the side wall of the support plate.

[0008] The detection assembly includes a column fixedly connected to the side wall of the support platform, a main support rod installed on the side wall of the column, a main extension rod fixedly connected to the end of the main support rod, a connector fixedly connected to the end of the main extension rod, and a vision sensor adapted to be installed in the middle of the connector, the vision sensor being disposed above the positioning mold base.

[0009] As a preferred embodiment of this utility model, the detection assembly further includes a secondary support rod fixedly connected to the side wall of the column, a secondary extension rod fixedly connected to the end of the secondary support rod, and a lamp body fixedly connected to the end of the secondary extension rod. The lamp bodies are symmetrically installed below the visual sensor.

[0010] In a preferred embodiment of this invention, the detection assembly further includes a host unit fixedly connected inside the housing, and the lamp body and the vision sensor are electrically connected to the host unit via wires.

[0011] As a preferred embodiment of this utility model, the side wall of the support platform is connected to a cover by bolts. The cover is sleeved on the outside of the column and the vision sensor, and the bottom side wall of the cover is provided with an avoidance groove for use with the positioning mold base.

[0012] In a preferred embodiment of this utility model, a screen is fixedly connected to the middle of the cover, and the screen is electrically connected to the host via a wire.

[0013] As a preferred embodiment of the present invention, the support assembly further includes a synchronous belt rotatably mounted on the inner side of the support plate, and a stepper motor adapted to be mounted on the side wall of the support plate, wherein a synchronous pulley for cooperating with the synchronous belt is adapted to be mounted on the output shaft end of the stepper motor.

[0014] As a preferred embodiment of this utility model, a switch for use with the stepper motor is fixedly connected to the end side wall of the support platform, and a displacement sensor for use with the positioning mold base is installed on the end side wall of the support plate.

[0015] Compared with the prior art, the advantages of this utility model are: by using the support component and the detection component together, and with the adjustable-angle vision sensor, high-precision detection of the keyboard appearance can be achieved. The entire detection process can be completed with simple operation, effectively preventing interference from external dust and light on the detection process. The equipment can adapt to the detection needs of keyboards of different sizes and models and has good scalability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal component structure of this utility model;

[0019] Figure 3 This is a front structural diagram of the present invention;

[0020] Figure 4 This is a schematic cross-sectional view of section AA of the present invention.

[0021] In the diagram: 100, Support assembly; 101, Housing; 102, Support platform; 103, Support plate; 104, Positioning mold base; 105, Synchronous belt; 106, Stepper motor; 107, Switch; 200, Detection assembly; 201, Column; 202, Main support rod; 204, Main extension rod; 205, Connector; 206, Vision sensor; 207, Secondary support rod; 208, Secondary extension rod; 209, Lamp body; 210, Main unit; 211, Cover; 212, Screen. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This is an embodiment of the present invention, which provides a keyboard appearance inspection device, including,

[0027] The support assembly 100 includes a housing 101, a support platform 102 fixedly connected to the top of the housing 101, a support plate 103 fixedly connected to the middle of the support platform 102, and a positioning mold base 104 slidably connected to the side wall of the support plate 103.

[0028] The detection component 200 includes a column 201 fixedly connected to the side wall of the support platform 102, a main support rod 202 installed on the side wall of the column 201, a main extension rod 204 fixedly connected to the end of the main support rod 202, a connector 205 fixedly connected to the end of the main extension rod 204, and a vision sensor 206 adapted to be installed in the middle of the connector 205. The vision sensor 206 is located above the positioning mold base 104.

[0029] The support assembly 100 provides a stable mechanical foundation for the entire inspection equipment. The housing 101 serves as the main frame of the equipment, while the support platform 102 provides an installation reference for the inspection assembly 200. The support plate 103 is vertically fixed to the middle of the support platform 102 and engages with the bottom of the positioning mold base 104 to achieve smooth linear movement of the positioning mold base 104. The column 201 is rigidly connected to the support platform 102 via a flange. The main support rod 202 is connected to the column 201 and, in conjunction with the main extension rod 204, allows adjustment of the position of the vision sensor 206 at the end of the connector 205, facilitating adaptation to different inspection needs and providing convenient adjustment. In daily use, the vision sensor 206 typically employs a 12-megapixel industrial camera equipped with a telecentric lens and a high-speed image acquisition card, offering a high frame rate and clear capture of keyboard surface defects.

[0030] Specifically, the detection assembly 200 also includes a secondary support rod 207 fixedly connected to the side wall of the column 201, a secondary extension rod 208 fixedly connected to the end of the secondary support rod 207, and a lamp body 209 fixedly connected to the end of the secondary extension rod 208. The lamp body 209 is symmetrically installed below the vision sensor 206.

[0031] The secondary support rod 207 is connected to the lamp body 209 at its end in conjunction with the secondary extension rod 208. The lamp body 209 can use a ring LED light source or an array of rectangular light sources to achieve uniform diffuse reflection illumination, effectively eliminate reflection interference, and ensure that the vision sensor 206 can clearly capture detailed images of the keyboard surface.

[0032] Furthermore, the detection component 200 also includes a host 210 fixedly connected inside the housing 101, and the lamp body 209 and the vision sensor 206 are electrically connected to the host 210 via wires.

[0033] The host computer 210 is an industrial-grade computer used to run custom-developed machine vision inspection software. It has multi-threaded parallel processing capabilities, which facilitates the simultaneous control of components such as the vision sensor 206 and the lamp body 209.

[0034] Furthermore, the support platform 102 has a cover 211 bolted to its side wall. The cover 211 is fitted onto the outside of the column 201 and the vision sensor 206, and the bottom side wall of the cover 211 has an avoidance groove for use with the positioning mold base 104.

[0035] The cover 211 has a light-shielding coating inside to prevent external light from interfering with the detection process. It also shields the detection components, keeping them in a stable environment and reducing light scattering outwards, thus preventing the equipment from affecting the external environment during operation.

[0036] Preferably, a screen 212 is fixedly connected in the middle of the cover 211, and the screen 212 is electrically connected to the host 210 through a wire.

[0037] Among them, screen 212 can be an industrial-grade touch display screen, which can be used to display the detection screen and result data in real time, and also facilitate the adjustment of the equipment's operating parameters.

[0038] It should be noted that the support assembly 100 also includes a synchronous belt 105 rotatably mounted inside the support plate 103, and a stepper motor 106 adapted to be mounted on the side wall of the support plate 103. The output shaft end of the stepper motor 106 is adapted to be fitted with a synchronous pulley that works with the synchronous belt 105. The end side wall of the support platform 102 is fixedly connected to a switch 107 that works with the stepper motor 106, and the end side wall of the support plate 103 is fitted with a displacement sensor that works with the positioning mold base 104.

[0039] The synchronous belt 105 is a high-torque polyurethane synchronous belt with a steel wire reinforcement layer embedded on its inner surface. It is connected to the output shaft of the stepper motor 106 via a synchronous pulley. The stepper motor 106 is a high-precision microstepping drive model, which, together with the grating ruler feedback system, can achieve the repeatability accuracy of the positioning mold base 104.

[0040] Working principle

[0041] Loading and positioning: The operator places the keyboard to be tested on the positioning mold base 104, which is automatically fixed by the pneumatic clamping mechanism. Pressing switch 107, the stepper motor 106 drives the synchronous belt 105, which moves the positioning mold base 104 along the guide rail of the support plate 103 to the testing station. The displacement sensor monitors the position of the positioning mold base 104 in real time to ensure that it stops precisely below the vision sensor 206.

[0042] Image Acquisition: When the keyboard arrives at the inspection station, the host 210 synchronously triggers the lamp 209 and the vision sensor 206. The lamp 209 illuminates the keyboard surface at a preset intensity, and the vision sensor 206 takes pictures of the keyboard from multiple angles to acquire complete appearance image data.

[0043] Defect Analysis: The acquired image data is transmitted to the host 210. The detection software first performs image preprocessing, including noise reduction, enhancement, and localization. Then, a deep learning algorithm is used to comprehensively analyze the keyboard surface, identifying various appearance defects such as missing keys, misaligned keycaps, surface scratches, and stains, and classifying and measuring these defects.

[0044] Result Judgment and Display: The system compares the test results with preset acceptance standards and automatically determines whether the keyboard is qualified. The test results are displayed in real time on screen 212, including defect location markings, dimensional parameters, and pass / fail judgment information. Simultaneously, the test data is automatically stored in a database and can be queried and exported at any time.

[0045] Material unloading: After inspection, the positioning mold base 104 returns to the loading station. Operators, following the on-screen prompts, unload the qualified and unqualified products separately for subsequent processes.

[0046] In summary, the precise guide rail slider structure and synchronous belt drive system ensure the repeatability of the positioning mold base 104. Combined with the adjustable-angle vision sensor 206, high-precision inspection of the keyboard's appearance is achieved. The human-machine interface system, consisting of the switch 107 and screen 212, allows operators to complete the entire inspection process with simple operation, reducing the skill requirements for operators. The cover 211 effectively prevents interference from external dust and light during the inspection process, while protecting operators from injury by moving parts, improving the reliability and safety of the equipment. The adjustable structure of the main support rod 202, secondary support rod 207, and extension rod, along with the easily adjustable connector 205, allows the equipment to adapt to the inspection needs of keyboards of different sizes and models, providing excellent expandability.

[0047] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0049] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A keyboard appearance inspection device, characterized in that: include, The support assembly (100) includes a housing (101), a support platform (102) fixedly connected to the top of the housing (101), a support plate (103) fixedly connected to the middle of the support platform (102), and a positioning mold base (104) slidably connected to the side wall of the support plate (103). The detection assembly (200) includes a column (201) fixedly connected to the side wall of the support platform (102), a main support rod (202) installed on the side wall of the column (201), a main extension rod (204) fixedly connected to the end of the main support rod (202), a connector (205) fixedly connected to the end of the main extension rod (204), and a vision sensor (206) adapted to be installed in the middle of the connector (205), the vision sensor (206) being disposed above the positioning mold base (104).

2. The keyboard appearance inspection device according to claim 1, characterized in that: The detection assembly (200) also includes a secondary support rod (207) fixedly connected to the side wall of the column (201), a secondary extension rod (208) fixedly connected to the end of the secondary support rod (207), and a lamp body (209) fixedly connected to the end of the secondary extension rod (208). The lamp body (209) is symmetrically installed below the vision sensor (206).

3. The keyboard appearance inspection device according to claim 2, characterized in that: The detection component (200) also includes a host (210) fixedly connected inside the housing (101), and the lamp body (209) and the vision sensor (206) are electrically connected to the host (210) via wires.

4. The keyboard appearance inspection device according to claim 3, characterized in that: The support platform (102) has a cover (211) connected to its side wall by bolts. The cover (211) is fitted on the outside of the column (201) and the vision sensor (206), and the bottom side wall of the cover (211) has an avoidance groove that cooperates with the positioning mold base (104).

5. The keyboard appearance inspection device according to claim 4, characterized in that: A screen (212) is fixedly connected in the middle of the cover (211), and the screen (212) is electrically connected to the host (210) through a wire.

6. The keyboard appearance inspection device according to claim 5, characterized in that: The support assembly (100) further includes a synchronous belt (105) rotatably mounted on the inner side of the support plate (103), and a stepper motor (106) adapted to be mounted on the side wall of the support plate (103). The output shaft end of the stepper motor (106) is adapted to be fitted with a synchronous pulley that works in conjunction with the synchronous belt (105).

7. The keyboard appearance inspection device according to claim 6, characterized in that: The end side wall of the support platform (102) is fixedly connected to a switch (107) that works with the stepper motor (106), and the end side wall of the support plate (103) is equipped with a displacement sensor that works with the positioning mold base (104).

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