Light source fixing device for visual inspection

Abstract

A kind of light source fixing device of visual inspection, it is related to visual inspection equipment field, including longitudinal fixed plate, welding plate and lens light source assembly, longitudinal driving mechanism is fixedly installed on the welding plate, transverse driving mechanism is installed between the welding plate and the longitudinal fixed plate, plane motion of lens light source assembly is realized using longitudinal driving mechanism and transverse driving mechanism, the utility model discloses by adopting the design of transverse and longitudinal perpendicular crossing driving mechanism, compared with existing horizontal installation, the horizontal direction of transverse is changed, and the horizontal space occupied by transverse shaft is effectively reduced.This design not only expands the working range of longitudinal movement, but also significantly reduces the overall volume and manufacturing cost of equipment, suitable for space-sensitive production line layout, protective cover covers transverse movement area through side groove, effectively prevent dust, foreign matter from entering moving parts, prolong the service life of equipment and maintain the cleanliness of detection environment.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection equipment, and in particular to a light source fixing device for visual inspection. Background Technology

[0002] In the PCB manufacturing industry, PCBs need to be inspected, and currently most of them are inspected using vision inspection technology. However, existing automated optical inspection (AOI) equipment usually uses a fixed light source and camera layout. Due to the limitations of mechanical structure design, the horizontal movement axis occupies a lot of horizontal space, and the effective working range of the vertical axis movement is small. In order to ensure functionality, the working length of the Y-axis must be increased, which will lead to an increase in the overall vertical dimension of the equipment. Such a design not only increases the manufacturing cost of the equipment, but also increases the cost of the space used. Utility Model Content

[0003] The purpose of this invention is to provide a light source fixing device for visual inspection, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved through the following technical solution:

[0005] A light source fixing device for visual inspection includes a longitudinal fixing plate, a welding plate, and a lens light source assembly. A longitudinal driving mechanism is fixedly mounted on the welding plate, and a transverse driving mechanism is installed between the welding plate and the longitudinal fixing plate. The longitudinal and transverse driving mechanisms are used to realize the planar movement of the lens light source assembly. The transverse driving mechanism includes a crossbeam, and a transverse servo drive is fixedly mounted in the inner cavity of the crossbeam. A slide block is slidably mounted on the crossbeam, and the lens light source assembly is fixedly mounted on the slide block. A lead screw seat is fixedly mounted on the inner end face of the slide block, and a center hole is provided in the lead screw seat. A lead screw cover is fixedly mounted in the center hole, and the output end lead screw shaft of the transverse servo drive passes through the lead screw cover and is threadedly connected to the lead screw cover.

[0006] Preferably, linear guide rails are fixedly installed on the upper and lower sides of the front end face of the crossbeam, and the sliding block is slidably connected by a fixedly installed slider.

[0007] Preferably, the longitudinal drive mechanism includes a longitudinal servo drive component fixedly mounted on the welding plate, a connecting bracket slidably mounted on the upper surface of the welding plate, and a threaded connection between the bottom extension of the connecting bracket and the lead screw at the output end of the longitudinal servo drive component.

[0008] Preferably, a support frame is slidably mounted on the upper surface of the longitudinal fixing plate, and the crossbeam is fixedly installed between the support frame and the connecting bracket.

[0009] Preferably, the lead screw seat is provided with a side groove, and a protective cover is fixedly installed on the front end face of the crossbeam, the protective cover passing through the side groove.

[0010] The advantages and positive effects of this utility model are:

[0011] This invention employs a drive mechanism design that intersects horizontally and vertically, altering the horizontal direction compared to existing horizontal installations and effectively reducing the horizontal space occupied by the horizontal axis. This design not only expands the working range of vertical movement but also significantly reduces the overall size and manufacturing cost of the equipment, making it suitable for space-sensitive production line layouts. The protective cover covers the horizontal movement area through side grooves, effectively preventing dust and foreign objects from entering the moving parts, extending the equipment's lifespan and maintaining the cleanliness of the testing environment. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of a light source fixing device for visual inspection according to the present invention;

[0014] Figure 2 This is a schematic diagram of the light source fixing device for visual inspection according to this utility model from another perspective.

[0015] Figure 3 This is a schematic diagram of the slide connecting block 16, a component in a light source fixing device for visual inspection according to the present invention.

[0016] Figure 4 This is a schematic diagram of the sliding block connecting block 16, a component in a light source fixing device for visual inspection according to this utility model, from another perspective.

[0017] Figure 5 This is a schematic diagram of an embodiment of a light source fixing device for visual inspection according to the present invention.

[0018] The markings in the attached diagram are described as follows: longitudinal fixing plate 10; welding plate 11; longitudinal servo drive component 12; connecting bracket 13; crossbeam 14; transverse servo drive component 15; slide table connecting block 16; lens light source assembly 17; protective cover 18; lead screw cover 19; lead screw seat 20; center hole 21; side groove 22. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in an illustrative manner. Therefore, they only show the components related to the present invention.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0021] The following is combined with Figures 1-5 This utility model will be described in detail below. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The directions of front, back, left, right, up, and down in the view are consistent. Figure 1 The directions shown are consistent with the front-facing, back-facing, left-right, up-down directions of the device.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of at least two components or the interaction relationship of at least two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The embodiments of this invention are further described in detail below with reference to the accompanying drawings:

[0023] Please see Figures 1-5This utility model provides an embodiment of a visual inspection machine for inspecting PCBs. By using a high-resolution camera, a suitable lighting system, and advanced image processing algorithms, it automatically identifies various defects and classifies and reports them according to preset standards, ensuring that only products meeting quality standards can enter the market. During the visual inspection process, the light source and camera are integrated and positioned above the inspection area, allowing movement within the entire inspection plane to inspect the PCB. The corresponding light source fixing device specifically includes a longitudinal fixing plate 10, a welding plate 11, and a lens light source assembly 17. The longitudinal fixing plate 10 and the welding plate 11 are respectively mounted on the support of the visual inspection machine. A longitudinal drive mechanism is fixedly mounted on the welding plate 11, and a transverse drive mechanism is installed between the welding plate 11 and the longitudinal fixing plate 10. The longitudinal and transverse drive mechanisms are used to achieve planar movement of the lens light source assembly 17. The transverse drive mechanism includes a crossbeam 14, in which a transverse servo drive component 15 is fixedly mounted. A slide block connecting block 16 is slidably mounted on the crossbeam 14. The lens... The light source assembly 17 is fixedly mounted on the slide connecting block 16. A lead screw seat 20 is fixedly mounted on the inner end face of the slide connecting block 16. A center hole 21 is provided in the lead screw seat 20, and a lead screw cover 19 is fixedly mounted in the center hole 21. The output end lead screw shaft of the transverse servo drive 15 passes through the lead screw cover 19 and is threadedly connected to the lead screw cover 19. The longitudinal drive mechanism includes a longitudinal servo drive 12 fixedly mounted on the welding plate 11. A connecting bracket 13 is slidably mounted on the upper end face of the welding plate 11. The bottom extension of the frame 13 is threadedly connected to the lead screw at the output end of the longitudinal servo drive 12. A support frame is slidably mounted on the upper surface of the longitudinal fixing plate 10. The crossbeam 14 is fixedly installed between the support frame and the connecting bracket 13, thereby forming a vertical intersection of the lateral and longitudinal directions. The fixed camera and light source are mounted on the lateral movement. After vertical installation, the horizontal space occupied by the lateral axis is reduced, and the effective working range for the longitudinal movement is increased. This not only ensures the original performance, but also significantly reduces the space requirements for equipment manufacturing and use, thereby further reducing the overall cost of the equipment.

[0024] It is worth mentioning that, in this embodiment, linear guide rails are fixedly installed on the upper and lower sides of the front end face of the crossbeam 14, and the sliding block 16 is slidably connected by a fixedly installed slider, which makes the overall movement more stable and ensures the accuracy of the detection.

[0025] It should be noted that, in this embodiment, the lead screw seat 20 is provided with a side groove 22, and a protective cover 18 is fixedly installed on the front end face of the crossbeam 14. The protective cover 18 passes through the side groove 22, thereby providing protection for lateral movement.

[0026] In specific implementation, the longitudinal position of the connecting bracket 13 is moved in the longitudinal direction by controlling the rotation of the longitudinal servo drive 12, thereby driving the crossbeam 14 to move. The lateral position of the slide connecting block 16 is moved in the lateral direction by controlling the transverse servo drive 15, thereby moving the lens light source assembly 17.

[0027] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A light source fixing device for visual inspection, comprising a longitudinal fixing plate (10), a welding plate (11), and a lens light source assembly (17), wherein a longitudinal driving mechanism is fixedly mounted on the welding plate (11), and a transverse driving mechanism is installed between the welding plate (11) and the longitudinal fixing plate (10), and the longitudinal driving mechanism and the transverse driving mechanism are used to realize the planar movement of the lens light source assembly (17), characterized in that: The transverse drive mechanism includes a crossbeam (14), a transverse servo drive (15) is fixedly installed in the inner cavity of the crossbeam (14), a slide block (16) is slidably installed on the crossbeam (14), the lens light source assembly (17) is fixedly installed on the slide block (16), a lead screw seat (20) is fixedly installed on the inner end face of the slide block (16), a center hole (21) is provided in the lead screw seat (20), a lead screw cover (19) is fixedly installed in the center hole (21), and the output end lead screw shaft of the transverse servo drive (15) passes through the lead screw cover (19) and is threadedly connected to the lead screw cover (19).

2. The light source fixing device for visual inspection according to claim 1, characterized in that: The front end face of the crossbeam (14) is fixedly mounted with linear guide rails on the upper and lower sides respectively, and the sliding block (16) is slidably connected by a fixedly mounted slider.

3. The light source fixing device for visual inspection according to claim 2, characterized in that: The longitudinal drive mechanism includes a longitudinal servo drive (12) fixedly mounted on the welding plate (11), and a connecting bracket (13) is slidably mounted on the upper surface of the welding plate (11). The bottom extension of the connecting bracket (13) is threadedly connected to the lead screw at the output end of the longitudinal servo drive (12).

4. The light source fixing device for visual inspection according to claim 3, characterized in that: A support frame is slidably installed on the upper end face of the longitudinal fixing plate (10), and the crossbeam (14) is fixedly installed between the support frame and the connecting bracket (13).

5. The light source fixing device for visual inspection according to claim 4, characterized in that: The lead screw seat (20) is provided with a side groove (22), and a protective cover (18) is fixedly installed on the front end face of the crossbeam (14), and the protective cover (18) passes through the side groove (22).

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