Light source mechanism and optical detection device

Abstract

The utility model discloses a light source mechanism and an optical detection device, and belongs to the technical field of optical equipment, and the light source mechanism comprises a supporting seat, a sliding seat arranged on the supporting seat in a sliding manner, a lamp holder and a light source assembly, the lamp bracket comprises a first lamp holder, a connecting seat and a plurality of second lamp holders; the connecting bases and the first lamp holder jointly define a light source channel. The light source assembly comprises a first lamp panel installed on the first lamp holder and a light source layer which is provided with a plurality of second lamp panels and installed on the second lamp holders. A plurality of second lamp panels of the light source layers are arranged on a second lamp holder at intervals in the circumferential direction of the first lamp panel, and all the light source layers and all the second lamp holders are located in the light source channel; each connecting base is provided with a plurality of first installation faces which are sequentially arranged at intervals in the sliding direction of the sliding base, and the second lamp holders are sequentially arranged at intervals in the sliding direction of the sliding base and installed on the first installation faces respectively. The light source mechanism is simple in structure, small in number of parts, convenient to disassemble and assemble and high in rigidity and strength.

Description

Technical Field

[0001] The utility model relates to the technical field of optical equipment, in particular to a light source mechanism and an optical detection device. Background Art

[0002] AOI (Automated Optical Inspection), the full name in Chinese is automatic optical inspection. The optical inspection (AOI) device is a device that detects common defects encountered in welding production based on optical principles. At present, the light source mechanism in the optical inspection device is a very important component, which plays a very critical role in the detection performance, detection efficiency, and accuracy of the detection results. The light source mechanism triggers and lights up the different color light panels in the light source assembly in turn according to the image acquisition principle, and then reflects back to the camera through different angles to obtain images of corresponding defective features. For products with different detection heights, it is necessary to move the light stand to adjust the height of the light source assembly. At present, the light stand of the light source mechanism has many components and complex structural connections, which is not only inconvenient for the disassembly and assembly of the light source assembly, but also has low overall rigidity and strength of the light source mechanism. Utility Model Content

[0003] One purpose of the embodiments of the utility model is to provide a light source mechanism with a simple structure, a small number of parts, convenient assembly and disassembly, and high overall rigidity and strength.

[0004] Another purpose of the embodiment of the utility model is to provide an optical detection device, which adopts the above-mentioned light source mechanism to facilitate disassembly and assembly, thereby improving the overall rigidity and strength.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In one aspect, a light source mechanism is provided, comprising:

[0007] Support seat;

[0008] A sliding seat, slidably arranged on the supporting seat;

[0009] The lamp holder comprises a first lamp holder connected to the support seat, a connecting seat connected to the first lamp holder, and a plurality of second lamp holders; the connecting seats are multiple and arranged at intervals, and the multiple connecting seats and the first lamp holder jointly enclose a light source channel;

[0010] as well as

[0011] A light source assembly, comprising a first light panel and a light source layer;

[0012] The first lamp board is installed on the first lamp holder and is located in the light source channel, the light source layer has a plurality of second lamp boards; the plurality of second lamp boards of the light source layer are arranged in the second lamp holder at intervals along the circumference of the first lamp board, the light source layer has a plurality of layers and corresponds to the plurality of second lamp holders one by one;

[0013] Each of the connecting seats has a plurality of first mounting surfaces arranged in sequence along the sliding direction of the sliding seat, and the plurality of first mounting surfaces on each of the connecting seats correspond to the plurality of second lamp holders one by one, and the plurality of second lamp holders are arranged in sequence along the sliding direction of the sliding seat and are respectively mounted on the plurality of first mounting surfaces on each of the connecting seats. The lamp holder is composed of the connecting seat, the first lamp holder, and the second lamp holder. The lamp holder has a simple structure, which is not only convenient for disassembly and assembly of the light source assembly, but also has high rigidity and strength. At the same time, the relative sliding of the sliding seat and the supporting seat facilitates the height adjustment of the light source assembly.

[0014] Optionally, a first diffuser plate is installed on the first light board, and a second diffuser plate is installed on each of the second light boards. The first diffuser plate and each of the second diffuser plates are located in an area jointly enclosed by the first light board and each of the second light boards, and the uniformity of the lighting effect is improved by the first diffuser plate and the second diffuser plate.

[0015] Optionally, the support seat and / or the sliding seat are provided with a plurality of scale lines spaced apart along the sliding direction of the sliding seat to facilitate precise adjustment of the height of the light source assembly.

[0016] Optionally, the support seat is provided with a first guide block and the sliding seat is provided with a first guide groove into which the first guide block is inserted and / or the sliding seat is provided with a second guide block and the support seat is provided with a second guide groove into which the second guide block is inserted; the first guide groove and the second guide groove both extend along the sliding direction of the sliding seat. The support seat and the sliding seat cooperate with each other through the first guide block and the first guide groove and / or the second guide block and the second guide groove, so that the light source assembly will not tilt or deviate during the height adjustment process, and the sliding seat slides through the scale line for positioning, thereby improving the accuracy of the height value adjustment of the light source assembly in the light source mechanism.

[0017] Optionally, the light source mechanism also includes a threaded locking rod with a limit head; a positioning threaded hole is provided on the support seat, and an adjustment groove extending along the sliding direction of the sliding seat is provided on the sliding seat; the threaded locking rod passes through the adjustment groove and the positioning threaded hole and is threadedly connected to the support seat; the limit head abuts against the sliding seat, and the positioning of the sliding seat is achieved by locking the threaded locking rod.

[0018] Optionally, the light source mechanism further includes a wiring adapter plate installed on the connecting seat and located outside the light source channel; the first light board and the second light board are both electrically connected to the wiring adapter plate to facilitate wiring of the light source assembly.

[0019] Optionally, a control line is provided on the wiring adapter board, and a wire hole is provided on the sliding seat. The control line passes through the wire hole to facilitate the wiring of the wiring adapter board and the electrical connection with the external controller.

[0020] Optionally, the second lamp holder includes a plurality of mounting plates; the plurality of mounting plates are arranged in a ring, and each mounting plate is installed with at least one second lamp board, so as to facilitate installation of the second lamp board.

[0021] Optionally, the second lamp holder includes a mounting ring; the mounting ring is located in the area enclosed by the connecting seats, each of the connecting seats is connected to the mounting ring, and the plurality of second lamp boards of each light source layer are arranged in sequence along the circumference of the mounting ring on the mounting ring to facilitate the installation of the second lamp boards.

[0022] Optionally, each mounting ring is provided with an assembly reference portion, and when each mounting ring is installed on the connecting seat, the projections of all the assembly reference portions along the sliding direction of the sliding seat overlap, which facilitates the positioning of the mounting ring and ensures that the installation angle and position of the second lamp panel are accurate.

[0023] Optionally, each of the connecting sockets is detachably connected to the first lamp holder, the first lamp board is detachably installed on the first lamp holder, the second lamp board is detachably installed on the second lamp holder, and the second lamp holder is detachably installed on the connecting socket. The detachable installation facilitates the installation, disassembly and maintenance of the first lamp board, the second light board, the first lamp holder and the second lamp holder.

[0024] Optionally, the lamp holder also includes a lampshade; each of the connecting seats is located in the area enclosed by the lampshade and is detachably connected to the lampshade, the first lamp panel and each of the second lamp panels are located in the area enclosed by the lampshade, and the lampshade can protect the light source assembly.

[0025] Optionally, the width of the inner wall of the light source channel gradually increases in a direction away from the first light board, and the number of the second light boards in each light source layer gradually increases in a direction away from the first light board, thereby improving the accuracy of the detection result.

[0026] On the other hand, an optical detection device is provided, including a frame, a first camera arranged on the frame, a second camera installed on the frame, and the above-mentioned light source mechanism; the support base is installed on the frame, there are multiple second cameras and they are arranged at intervals along the circumference of the first camera, the lamp holder has a first detection channel and multiple second detection channels, the first detection channel and the multiple second detection channels are both connected to the light source channel, the multiple second detection channels correspond one-to-one to the multiple second cameras and are arranged at intervals along the circumference of the first detection channel, and a light baffle installed on the lamp holder is provided between two adjacent second cameras, so as to improve the accuracy of height adjustment of the light source assembly in the optical detection device, thereby ensuring the accuracy of the detection result of the optical detection device.

[0027] The beneficial effects of the utility model are:

[0028] The light source mechanism of the utility model drives the lamp holder to slide relative to the support seat through the sliding seat to achieve the height adjustment of the light source assembly. The lamp holder of the light source mechanism includes a first lamp holder, a connecting seat, and a plurality of second lamp holders. The lamp holder has a simple structure and fewer parts, and has high rigidity and strength. By providing multiple connecting seats and using the first mounting surface on the connecting seat to mount the light source layer, the disassembly and assembly of the light source layer is convenient.

[0029] The optical detection device of the utility model improves the rigidity and strength of the light source mechanism by adopting the above light source mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described in detail below based on the drawings and embodiments.

[0031] Figure 1 This is a main cross-sectional view of the light source mechanism, in which the lampshade is hidden;

[0032] Figure 2 for Figure 1 Exploded view of;

[0033] Figure 3 is a top view of the light source mechanism;

[0034] Figure 4 It is a structural schematic diagram of the connecting seat;

[0035] Figure 5 It is a schematic diagram of the assembly of the support seat and the sliding seat;

[0036] Figure 6 It is a structural schematic diagram of a support seat and a sliding seat;

[0037] Figure 7 It is a schematic diagram of assembling the first lamp board, the first lamp holder and the first diffuser plate;

[0038] Figure 8 It is a schematic diagram of assembling the second lamp panel, the second lamp holder and the second diffuser panel of the first light source layer;

[0039] Fig. 9 It is a schematic diagram of assembling the second lamp panel, the second lamp holder and the second diffuser panel of the second light source layer;

[0040] Fig.10 It is a schematic diagram of the assembly of the second lamp board, the second lamp holder and the second diffuser plate of the third light source layer;

[0041] Fig.11 is a schematic diagram of the structure of an optical detection device;

[0042] Fig.12 It is the assembly diagram of the support seat, sliding seat and frame.

[0043] Description of the accompanying drawings:

[0044] 11. Support seat; 12. Sliding seat; 13. Lamp holder; 14. Light source assembly; 15. Scale line; 16. Wiring adapter plate; 17. Adapter plate seat; 18. Rack; 19. First camera; 20. Second camera; 21. Pin;

[0045] 111, first guide block; 112, positioning threaded hole;

[0046] 121, first guide groove; 122, adjustment groove; 123, wire binding hole;

[0047] 131, light source channel; 133, connecting seat; 134, first lamp holder; 135, second lamp holder; 136, lamp cover; 137, first detection channel; 138, second detection channel; 139, light shield;

[0048] 141, first light board; 142, light source layer; 143, second light board; 144, first diffusion board; 145, second diffusion board;

[0049] 181, first frame; 182, second frame;

[0050] 1331, a first mounting surface; 1332, a second mounting surface;

[0051] 1351. Mounting plate; 1352. Mounting ring; 1353. Assembly reference portion. DETAILED DESCRIPTION

[0052] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "fixed", "connected", "communicated", "abutted", "clamped" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0057] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0058] Unless specifically stated or defined otherwise, the term “and / or” used in the present invention includes any and all combinations of one or more of the associated listed items.

[0059] For the convenience of description, unless otherwise specified, the up and down directions mentioned below are the same as Figure 1 The up and down directions are consistent.

[0060] In the related art, the light source mechanism of the optical detection device has a complex structure, and the light source mechanism has a lamp holder and light source assembly with many parts, which not only makes the assembly and disassembly of the light source mechanism difficult, but also makes the overall rigidity and strength of the light source mechanism poor.

[0061] In order to solve the problems of the light source mechanism in the related art being complex in structure, inconvenient to assemble and disassemble, and having poor overall rigidity and strength, the present application provides a light source mechanism, wherein the first lamp holder of the lamp frame is connected to a plurality of spaced connection seats, the connection seats are integrally formed and have a first mounting surface, which is convenient for the second lamp holder to be installed and positioned, and the lamp frame has fewer parts, which is not only convenient to assemble and disassemble, but also improves the overall strength of the lamp frame. Each second lamp holder is connected to the corresponding first mounting surface on the plurality of connection seats, and the installation connection is stable, further improving the stability of the structure.

[0062] In addition, the optical detection device also has high requirements for the height adjustment of the light source assembly. When adjusting the height of the light source assembly in the prior art, the adjustment is mainly achieved by inserting positioning pins, positioning bolts and other positioning parts into different positioning holes on the support seat and the sliding seat. There are multiple positioning holes on the support seat and the sliding seat that are evenly spaced from top to bottom. Each adjustment requires separating the positioning part from the support seat and the sliding seat, and then selecting the two required positioning holes for alignment. Finally, the positioning part passes through the two aligned positioning holes, which makes adjustment inconvenient. Since the positioning holes are arranged at a certain interval, the adjustment accuracy is low. For example, the distance between the positioning holes is 10mm, and the height can only be adjusted by 10mm or in multiples of 10mm each time. High-precision adjustment is impossible. At the same time, the diameter of the positioning hole generally needs to be slightly larger than the diameter of the positioning part. During the height adjustment process, the support seat and the sliding seat are prone to tilt or offset, which eventually causes the light source assembly to tilt or offset, thereby affecting the detection results. The light source mechanism provided by the present application can improve the convenience and accuracy of the height adjustment of the light source assembly by setting scale lines, and prevent the light source assembly from tilting or shifting during height adjustment by cooperating with the grooves and protrusions to prevent the detection results of the optical detection device from being affected. The light source mechanism is mainly used in optical detection devices, and can also be used in other optical devices.

[0063] like Figures 1 to 4 , Figures 7 to 11 As shown, the light source mechanism provided by the present application includes a support seat 11, a sliding seat 12 slidably mounted on the support seat 11, a lamp holder 13 having a light source channel 131 and mounted on the support seat 11, and a light source assembly 14 mounted in the light source channel 131. The sliding seat 12 can slide up and down relative to the support seat 11, and the lamp holder 13 is mounted on the lower end surface of the sliding seat 12, so that the sliding seat 12 can drive the light source assembly 14 on the lamp holder 13 to slide up and down, thereby realizing the height adjustment of the light source assembly 14. In optical inspection, the light source assembly 14 uses lamp beads on different lamp boards as light sources to emit light, and lamp boards of different colors are triggered and lit in turn, and the light is irradiated on the object to be inspected. The light is then reflected at different angles. In optical inspection, the image of the object's bad features can be obtained through the reflected light, thereby realizing the detection of defects of the object.

[0064] The lamp holder 13 includes a first lamp holder 134, a connecting holder 133, and a second lamp holder 135. The light source assembly 14 includes a first lamp board 141 and at least one light source layer 142. The first lamp board 141 is a single-layer light source, which is arranged on the top of the lamp holder 13. The lamp beads of the first lamp board 141 irradiate vertically from top to bottom. The first lamp board 141 and the plurality of light source layers 142 are arranged in sequence along the sliding direction of the sliding seat 12. At least one light source layer 142 is arranged below the first lamp board 141. When a plurality of light source layers 142 are arranged, the plurality of light source layers 142 are arranged at intervals from top to bottom.

[0065] The first lamp holder 134 is detachably connected to the sliding seat 12 by screws or the like, the connecting seat 133 is integrally formed and has high strength, there are multiple connecting seats 133 and they are installed at intervals on the lower end surface of the first lamp holder 134, the first lamp board 141 is installed in the central area of ​​the lower end surface of the first lamp holder 134 and is located in the area enclosed by the multiple connecting seats 133, there are multiple connecting seats 133 and they are arranged at intervals, and the multiple connecting seats 133 and the first lamp holder 134 jointly enclose the light source channel 131. Specifically, in this embodiment, there are four connection seats 133, which are evenly spaced along the circumference of the first lamp board 141. Each connection seat 133 is provided with a plurality of first mounting surfaces 1331 spaced from top to bottom, and the first mounting surfaces 1331 are located in the light source channel. Each connection seat 133 is provided with at least one first mounting surface 1331, and there is also at least one second lamp holder 135. The number of first mounting surfaces 1331 of each connection seat 133 corresponds to the number of second lamp holders 135, so that the second lamp holder 135 can be installed on any first mounting surface 1331 of each connection seat 133, and the structural connection is stable. The first lamp board 141 is installed in the central area of ​​the lower end surface of the first lamp holder 134 and is located in the area enclosed by the four connection seats 133. There are multiple second lamp holders 135 and they correspond one-to-one to the multiple light source layers 142. The structure of each light source layer 142 corresponding to the second lamp holder 135 can be the same or different. The plurality of second lamp holders 135 are all located in the area enclosed by the plurality of connecting seats 133 and are installed on the connecting seats 133 at intervals in the direction away from the first lamp holder 134. Each second lamp holder 135 is detachably installed on all connecting seats 133 at the same time, so that all connecting seats 133 jointly support the second lamp holders 135 and the light source layer 142 on the second lamp holders 135. The force on each connecting seat 133 is smaller, which improves the service life. The plurality of second lamp panels 143 of the same light source layer 142 are sequentially arranged on the same second lamp holder 135. The first lamp holder 134 has four extension angles, which are respectively connected to the upper end faces of the four connecting seats 133 through pins 21. The first lamp holder, the connecting seat, and the second lamp holder realize the mutual cooperation of the sliding seat and the light source assembly, which facilitates the height adjustment of the light source assembly.

[0066] Each light source layer 142 has a plurality of second lamp boards 143, and the plurality of second lamp boards 143 of each light source layer 142 are arranged in the installation channel along the circumferential ring of the first lamp board 141, that is, along the vertical projection, all the second lamp boards 143 of each light source layer 142 are located on the same circular trajectory, and the first lamp board 141 is located in the center area of ​​the circular trajectory. The first lamp board 141 and all the second lamp boards 143 together enclose a light source channel 131, the central axis of the light source assembly 14 is the first axis, the sliding direction of the sliding seat is parallel to the first axis, and the extension direction of the light source channel is parallel to the first axis; all or part of the light emitted by each lamp board in the light source assembly 14 can be emitted along the light source channel to the outside of the light source assembly, and the first lamp board and the light source layer are spaced apart along the first axis; the multiple light source layers are spaced apart along the first axis, specifically, the light of the first lamp board 141 is irradiated vertically from top to bottom, and the light of each second lamp board 143 is irradiated obliquely from top to bottom, and the light of the first lamp board 141 and the light of each second lamp board 143 are irradiated on the same irradiation area or on the same irradiation point, and the irradiation area or irradiation point is located in the light source channel 131 or below the light source channel 131.

[0067] Thus, the lamp holder of the present application includes a first lamp holder, a connecting holder, and a second lamp holder. Compared with the prior art in which the connecting holder is composed of a plurality of different parts, the lamp holder as a whole has fewer parts, and the assembly and disassembly of the first lamp holder, the connecting holder, and the second lamp holder are simple and convenient. After the first lamp holder, the connecting holder, and the second lamp holder are assembled, the overall rigidity and strength are high. By providing the first lamp holder and the second lamp holder, the first lamp board and the second lamp board can be quickly installed.

[0068] Optionally, the connection base 133 is integrally formed, and the connection base 133 has a stepped portion, which forms a plurality of first mounting surfaces 1331 arranged sequentially from top to bottom, and the first mounting surfaces 1331 extend horizontally or obliquely to facilitate the installation of the second lamp board 135. The first mounting surfaces 1331 are formed by the stepped portion, so that the width of the light source channel 131 gradually increases from top to bottom, which facilitates the addition of the number of second lamp boards 143.

[0069] In one embodiment, in order to improve the uniformity of the lighting effect, a first diffuser plate 144 is installed on the first light board 141, and a second diffuser plate 145 is installed on each second light board 143. The first diffuser plate 144 and each second diffuser plate 145 are located in the area enclosed by the first light board 141 and each second light board 143, that is, the first diffuser plate 144 and each second diffuser plate 145 are located in the light source channel 131, the first diffuser plate 144 is located on the irradiation path of the light of the first light board 141 and is perpendicular to the light of the first light board 141, and the second diffuser plate 145 is located on the irradiation path of the light of the second light board 143 and is perpendicular to the light of the second light board 143. The light of the first lamp board 141 is diffused by the first diffuser 144, and the light of the second lamp board 143 is diffused by the second diffuser 145, so as to avoid direct light from the lamp beads between the first lamp board 141 and each second lamp board 143, thereby avoiding the problem of poor uniformity of the FOV surface light source and improving the uniformity of the lighting effect. The FOV surface (Field of View) is the detection surface. The detection surface is the range of the first camera, the second camera, etc., which takes a photo once. The range of the detection surface is generally 50mm×40mm, so the brightness needs to be kept uniform within the range of this detection surface during detection.

[0070] Optionally, adjacent first lamp boards 141 and second lamp boards 143, two adjacent second lamp boards 143 on the same light source layer 142, and two adjacent second lamp boards 143 on adjacent light source layers 142 are closely arranged to reduce gaps between small lamp boards; adjacent first diffuser plates 144 and second diffuser plates 145, and two adjacent second diffuser plates 145 are also closely arranged to further avoid the problem of poor uniformity of the FOV surface light source caused by direct illumination of lamp beads due to gap positions.

[0071] like Figures 1 to 6 As shown, in order to facilitate the sliding seat 12 to slide up and down and ensure that the sliding seat 12 does not tilt or deflect when sliding up and down, the support seat 11 is provided with a first guide block 111 and the sliding seat 12 is provided with a first guide groove 121 into which the first guide block 111 is snapped, and / or the sliding seat 12 is provided with a second guide block and the support seat 11 is provided with a second guide groove into which the second guide block is snapped. The first guide block 111 and the second guide block are both convex blocks, the first guide groove 121 and the second guide groove are both bar-shaped grooves, and the first guide groove 121 and the second guide groove both extend along the sliding direction of the sliding seat 12.

[0072] There are many ways to set the strip grooves and protrusions. The first way is to provide a first guide block 111 on the support seat 11 and a first guide groove 121 into which the first guide block 111 is inserted on the sliding seat 12. The first guide block 111 integrally formed on the support seat 11 is inserted into the first guide groove 121 provided on the sliding seat 12. The first guide block 111 slides up and down along the first guide groove 121. The inner walls on both sides of the first guide groove 121 abut against the two outer sides of the first guide block 111, thereby preventing the sliding seat 12 from tilting or deflecting when sliding up and down. The second way is to provide a second guide block on the sliding seat 12 and a second guide groove into which the second guide block is inserted on the support seat 11. The second guide block integrally formed on the sliding seat 12 is inserted into the second guide groove provided on the support seat 11. The second guide block slides up and down along the second guide groove. The inner walls on both sides of the second guide groove abut against the two outer sides of the second guide block, thereby preventing the light source assembly 14 from tilting or deflecting when the sliding seat 12 slides up and down. The third way is to combine the above two ways to improve the sliding stability of the sliding seat 12. In this embodiment, the first setting mode is taken as an example, and the second guide block and the second guide groove are not shown in the figure. The first guide groove 121, which is inserted by a guide block, can be used as a horizontal limit when the sliding seat 12 slides up and down, ensuring that the central axis of the light source assembly 14 and the imaging assembly of the optical detection device are not tilted or offset.

[0073] The support seat 11 and / or the sliding seat 12 are provided with a scale bar, and the scale bar includes a plurality of scale lines 15 arranged at intervals. Specifically, the support seat 11 and / or the sliding seat 12 are provided with a plurality of scale lines 15 arranged at intervals along the sliding direction of the sliding seat 12. Either or both of the support seat 11 and the sliding seat 12 are provided with a plurality of scale lines 15, and the plurality of scale lines 15 are evenly spaced from top to bottom, and readings can be set on at least some of the scale lines 15. In this embodiment, taking the support seat 11 as an example of providing scale lines 15, the position where the upper end of the sliding seat 12 is aligned with the scale lines 15 is the current height position of the sliding seat 12. In this way, the sliding of the sliding seat 12 is achieved by the engagement of the first guide block 111 and the first guide groove 121. The sliding adjustment is convenient and the height adjustment selection range of the sliding seat 12 is large. At the same time, through the cooperation of the scale line 15, the height of the corresponding sliding seat 12 can be directly checked through the scale line 15 on the support seat 11. There is no need to use cumbersome measurement of the height measuring tool. The height value is accurately adjusted, and the height adjustment of the sliding seat 12 is more convenient, thereby improving the accuracy of the height value adjustment of the light source assembly 14.

[0074] It is understandable that the sliding seat 12 can slide up and down by manual adjustment or automatically by means of a cylinder, an electric telescoping device, etc. After the sliding seat 12 is adjusted to a suitable height, the positioning can be achieved by the friction force generated by the engagement of the first guide block 111 and the first guide groove 121, or the positioning stability can be improved by locking by means of a fixing clip, a locking member, etc. after the adjustment is completed.

[0075] Optionally, the sliding seat 12 is installed on the support seat 11 through a locking piece and can be adjusted up and down. The sliding distance of the sliding seat 12 is set to 40mm to 55mm, that is, the range of the scale line 15 is 40mm to 55mm, which corresponds to the height adjustment range of the light source assembly 14. The scale line 15 is processed on the support seat 11 by CNC, laser, etc.

[0076] In one embodiment, a locking member can be used to lock and position the sliding seat 12. Specifically, the light source mechanism also includes a threaded locking rod with a limit head. The threaded locking rod can be selected from bolts or screws, and a positioning threaded hole 112 is provided on the support seat 11, and the positioning threaded hole 112 is a round hole. An adjustment groove 122 extending along the sliding direction of the sliding seat 12 is provided on the sliding seat 12, and the adjustment groove 122 is a strip groove. The threaded locking rod passes through the adjustment groove 122 and the positioning threaded hole 112 and is threadedly connected to the support seat 11, and the limit head abuts against the sliding seat 12. After the sliding block is pushed up and down to slide and the height adjustment of the light source assembly 14 is completed, the limit head abuts against the sliding seat 12 by rotating the threaded locking rod to achieve the locking of the sliding seat 12. In addition, the threaded locking rod can not only achieve the locking of the sliding seat 12, but also prevent the sliding seat 12 from tilting or offsetting during the height adjustment process by cooperating with the adjustment groove 122.

[0077] Furthermore, the light source mechanism also includes a wiring adapter plate 16 installed on the lamp holder 13. The wiring adapter plate 16 is installed on the adapter plate seat 17, and the wiring adapter plate 16 is installed on the lamp holder 13 through the adapter plate seat 17. The wiring adapter plate 16 is electrically connected to the light source assembly 14, and the cables of each lamp board of the light source assembly 14 are connected to the wiring adapter plate 16. Compared with the existing cables of each lamp board being connected to an external power supply, the wiring adapter plate 16 facilitates the wiring of the lamp board of the light source assembly 14, reduces the number of outgoing lines, facilitates the wiring of the cables, avoids the problems of difficulty in wiring the light source assembly 14, inconvenience in later maintenance, etc., and the wiring adapter plate 16 realizes the plugging and unplugging of the light source line outside the lamp holder 13, which is convenient for the assembly and disassembly of the light source mechanism as a whole.

[0078] Optionally, the wiring adapter plate 16 is located outside the light source channel 131. Specifically, the connecting seat 133 also has a second mounting surface 1332. The second mounting surface 1332 is located outside the light source channel 131. The second mounting surface 1332 is tilted upward to facilitate the installation and wiring of the wiring adapter plate 16.

[0079] Optionally, a control line is provided on the wiring adapter plate 16, and a wire hole 123 is provided on the sliding seat 12. The control line passes through the wire hole 123 to facilitate the routing and wiring of the wiring adapter plate 16, thereby realizing electrical connection between the wiring adapter plate 16 and an external controller.

[0080] Furthermore, the second lamp holder 135 can be set to two different structures, the two second lamp holders 135 can be used at the same time, or only one of them can be used. Optionally, in the present embodiment, the light source layer 142 has three layers, namely, the first light source layer, the second light source layer, and the third light source layer from top to bottom. The first light source layer is installed with the first type of second lamp holder 135, and the second light source layer and the third light source layer are installed with the second type of second lamp holder 135.

[0081] The first type of second lamp holder 135 includes a mounting plate 1351. There are multiple mounting plates 1351, each connection seat 133 is equipped with at least one mounting plate 1351, all mounting plates 1351 are arranged in a ring, that is, all mounting plates 1351 are arranged at intervals along a circular track, and each mounting plate 1351 is equipped with at least one second lamp board 143, so that the material of the second lamp holder 135 can be saved and the weight of the lamp holder 13 can be reduced.

[0082] The second type of second lamp holder 135 includes a mounting ring 1352. The mounting ring 1352 is an annular plate body, and the inner side wall of the mounting ring 1352 is provided with an integrally formed extension plate, and there are multiple extension plates and they are arranged at intervals along the circumference of the mounting ring 1352, and each extension plate is installed with a second lamp board 143. The mounting ring 1352 is located in the area enclosed by each connection seat 133, and each connection seat 133 is detachably connected to the outer side of the mounting ring 1352 by screws. The multiple second lamp boards 143 of each light source layer 142 are arranged on the mounting ring 1352 in sequence along the circumference of the mounting ring 1352, so that the multiple second lamps of each light source layer 142 can be closely arranged.

[0083] Key References Figure 3 In one embodiment, each mounting ring 1352 is provided with an assembly reference portion 1353, which is an alignment notch provided on the mounting ring 1352. When each mounting ring 1352 is installed on the connecting seat 133, all the assembly reference portions 1353 are located on the same vertical line, that is, the projections of all the assembly reference portions 1353 along the sliding direction of the sliding seat overlap. The mounting rings 1352 where the second light source layer and the third light source layer are located are all provided with assembly reference portions 1353. By aligning the assembly reference portions 1353, the installation angle or position of the second lamp board 143 can be clearly located to prevent the cable outlet position of the second lamp board 143 from being incorrect.

[0084] In addition, the mounting ring 1352 can also be positioned by setting an alignment scale or the like.

[0085] In one embodiment, the first lamp board 141 is detachably mounted on the first lamp holder 134, the second lamp board 143 is detachably mounted on the second lamp holder 135, and the second lamp holder 135 is detachably mounted on the connecting holder 133. The first lamp board 141 and the second lamp board 143 of the existing light source assembly 14 are assembled by welding, which is cumbersome to assemble and needs to be repeatedly disassembled and assembled. The present application simplifies the installation method of the first lamp board 141 and the second lamp board 143, and does not require welding, thereby avoiding welding errors and welding deformation. The first lamp holder 134 and the second lamp holder 135 are both integrally formed sheet metal parts. The first lamp board 141 can be pre-installed on the first lamp holder 134, and the second lamp board 143 can be pre-installed on the second lamp holder 135. The first lamp board 141 and the first lamp holder 134, the second lamp board 143 and the second lamp holder 135 can all be supplied together after the assembly is completed in the production workshop, which is convenient for subsequent assembly. The light source assembly 14 is installed on the optical detection device through a sliding block and a supporting block. The sliding block can be adjusted up and down to meet the height adjustment requirements of the light source assembly 14.

[0086] Furthermore, the first lamp board 141 and the first lamp holder 134, and the second lamp board 143 and the second lamp holder 135 of each light source layer 142 can be pre-assembled to reduce repeated disassembly and assembly and reduce assembly time. The first lamp board 141 is a single lamp board, and there are four second lamp boards 143 of the first light source layer. The second lamp holder 135 for mounting the first light source layer 142 includes four mounting plates 1351. There are eight second lamp boards 143 of the second light source layer, and the second lamp holder 135 for mounting the second light source layer is a mounting ring 1352. There are ten second lamp boards 143 of the third light source layer, and the second lamp holder 135 for mounting the third light source layer is a mounting ring 1352.

[0087] In one embodiment, the lamp holder 13 further includes a lampshade 136. The lampshade 136 is a ring-shaped panel, each connection seat 133 is located in the area enclosed by the lampshade 136 and is detachably connected to the lampshade 136, and the first lamp board 141 and each second lamp board 143 are located in the area enclosed by the lampshade 136. The first lamp board 141 and each second lamp board 143 are protected by the lampshade 136, and a shading plate is installed on the lampshade 136 to prevent glare from being emitted.

[0088] In one embodiment, the inner wall of the light source channel 131 is bowl-shaped, and the width of the inner wall of the light source channel 131 gradually increases in the direction away from the first light board 141, that is, the width of the inner wall of the light source channel 131 in the horizontal direction gradually increases from downward, and the number of second light boards 143 of each light source layer 142 gradually increases in the direction away from the first light board 141. Adding the second light board close to the direction of the object to be detected improves the accuracy of the detection result.

[0089] like Figure 11 to Figure 12As shown, at the same time, the embodiment of the present application also provides an optical detection device, including a frame 18, a first camera 19 arranged on the frame 18, a second camera 20 installed on the frame 18, and the above-mentioned light source mechanism. The support seat 11 is installed on the frame 18, the first camera 19 shoots vertically from top to bottom, and the second camera 20 shoots obliquely from top to bottom. There are multiple second cameras 20 and they are arranged at intervals along the circumference of the first camera 19. The lamp frame 13 has a first detection channel 137 and multiple second detection channels 138. The first detection channel 137 and the multiple second detection channels 138 are all connected to the light source channel 131. The first lamp board 141 has a central through hole. The first detection channel 137 is formed by opening a square hole in the first lamp holder 134 that is connected to the through hole. The plurality of second detection channels 138 correspond to the plurality of second cameras 20 one by one and are arranged at intervals along the circumference of the first detection channel 137. A light shielding plate 139 mounted on the light frame 13 is provided between two adjacent second cameras 20. The light shielding plate 139 is tilted and formed integrally with the light frame 13. The first camera 19 is the main lens, and there are four groups of second cameras 20 around it. The light frame 13 needs to open holes at the corresponding positions below the second cameras 20 to form the second detection channels 138, which can meet the requirement that the field of view is not interfered within the range of the up and down movement of the light frame 13, and the light shielding plate prevents the light from being glaring.

[0090] Optionally, the frame 18 includes a first frame and a second frame connected in sequence from top to bottom. The first camera 19 is mounted on the first frame, and the second camera 20 and the support base 11 are mounted on the second frame. The light source mechanism is connected to four sides of the second frame through four support bases 11, and the structure of the first frame and the second frame is simplified, and the connection strength and rigidity are enhanced, thereby reducing the shaking of the light source during high-speed movement.

[0091] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A light source mechanism, characterized in that: include: Support seat; A sliding seat, slidably arranged on the supporting seat; The lamp holder comprises a first lamp holder connected to the support seat, a connecting seat connected to the first lamp holder, and a plurality of second lamp holders; the connecting seats are multiple and arranged at intervals, and the multiple connecting seats and the first lamp holder jointly enclose a light source channel; as well as A light source assembly, comprising a first lamp board and a light source layer; the first lamp board is mounted on the first lamp holder and is located in the light source channel, the light source layer has a plurality of second lamp boards; the plurality of second lamp boards of the light source layer are arranged in the second lamp holder at intervals along the circumference of the first lamp board, the light source layer has a plurality of layers and corresponds to the plurality of second lamp holders one by one; Each of the connecting seats has a plurality of first mounting surfaces arranged in sequence along the sliding direction of the sliding seat, and the plurality of first mounting surfaces on each of the connecting seats correspond one-to-one to a plurality of second lamp holders. The plurality of second lamp holders are arranged in sequence along the sliding direction of the sliding seat and are respectively installed on the plurality of first mounting surfaces on each of the connecting seats.

2. The light source mechanism according to claim 1, characterized in that: A first diffuser plate is mounted on the first light board, a second diffuser plate is mounted on each of the second light boards, and the first diffuser plate and each of the second diffuser plates are located in an area enclosed by the first light board and each of the second light boards.

3. The light source mechanism according to claim 1, characterized in that: The support seat and / or the sliding seat are provided with a plurality of scale lines arranged at intervals along the sliding direction of the sliding seat.

4. The light source mechanism according to claim 1, characterized in that: It also includes a wiring adapter board installed on the connecting seat and located outside the light source channel; the first light board and the second light board are both electrically connected to the wiring adapter board.

5. The light source mechanism according to claim 4, characterized in that: The wiring adapter plate is provided with a control line, the sliding seat is provided with a wire binding hole, and the control line passes through the wire binding hole.

6. The light source mechanism according to any one of claims 1 to 5, characterized in that: The second lamp holder includes a plurality of mounting plates; the plurality of mounting plates are arranged in a ring shape, and each of the mounting plates is mounted with at least one second lamp board.

7. The light source mechanism according to any one of claims 1 to 5, characterized in that: The second lamp holder includes a mounting ring; the mounting ring is located in the area enclosed by each of the connecting seats, each of the connecting seats is connected to the mounting ring, and the plurality of the second lamp panels of each of the light source layers are arranged in sequence along the circumference of the mounting ring.

8. The light source mechanism according to claim 7, characterized in that: Each of the mounting rings is provided with an assembly reference portion, and when each of the mounting rings is mounted on the connecting seat, the projections of all of the assembly reference portions along the sliding direction of the sliding seat overlap.

9. The light source mechanism according to any one of claims 1 to 5, characterized in that: Each of the connecting sockets is detachably connected to the first lamp holder, the first lamp board is detachably mounted on the first lamp holder, the second lamp board is detachably mounted on the second lamp holder, and the second lamp holder is detachably mounted on the connecting socket.

10. An optical detection device, characterized in that: It includes a frame, a first camera arranged on the frame, a second camera installed on the frame, and the light source mechanism according to any one of claims 1 to 9; the support base is installed on the frame, there are multiple second cameras and they are arranged at intervals along the circumference of the first camera, the lamp holder has a first detection channel and multiple second detection channels, the first detection channel and multiple second detection channels are all connected to the light source channel, multiple second detection channels correspond one-to-one to multiple second cameras and are arranged at intervals along the circumference of the first detection channel, and a light blocking plate installed on the lamp holder is provided between two adjacent second cameras.

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