Integrated light source module for detecting small components

Abstract

The integrated light source module comprises a lens assembly and further comprises a light source assembly, the top end and the bottom end of the light source assembly are open, the diameter of the opening in the top end of the light source assembly is larger than that of the opening in the bottom end of the light source assembly, and multiple sets of light sources are arranged between the opening in the top end and the opening in the bottom end of the light source assembly. The light supplementing module is used for uniformly supplementing light for small components passing through the light supplementing module; the light source assembly is arranged at the top of the lens assembly; the light source assembly and the lens assembly are connected through a connecting plate, the connecting plate is in an L shape, fixing holes are formed in the two ends of the connecting plate, and bolts penetrate through the fixing holes to enable the two ends of the connecting plate to be connected with the light source assembly and the lens assembly respectively. The lens assembly is used for cooperating with a camera device to carry out clear image acquisition on a small component. The light source assembly is provided with a plurality of light supplementing assemblies from top to bottom, and the plurality of light supplementing assemblies form a frustum-shaped light supplementing module.

Description

Technical Field

[0001] The present invention relates to the technical field of light source modules, and in particular to an integrated light source module for detecting small components. Background Art

[0002] In the electronics manufacturing industry, quality inspection of small components is crucial. These small components usually have high precision, high integration and complex structures, which puts extremely high demands on the accuracy and efficiency of inspection. Traditional small component inspection methods often rely on manual visual inspection. However, manual inspection is not only inefficient, but also easily affected by human factors, such as fatigue and lack of concentration, which makes it difficult to ensure the accuracy and consistency of the inspection results. With the rapid development of electronic technology, automatic optical inspection (AOI) systems have gradually become the mainstream means of small component inspection. In AOI systems, the quality and characteristics of the light source play a key role in the inspection effect. Existing light source modules have many shortcomings. Traditional light source modules are usually composed of multiple independent light source components, such as ring light sources, strip light sources, etc.

[0003] In the prior art, a Chinese patent with publication number CN218938112U discloses a light source module for pin detection of electronic components, which includes the light source module including a main light source device and a fill light source device, the main light source device including a box, a main light source assembly and a lens assembly, the fill light source device including a support and a fill light source assembly, and the fill light source assembly is provided with a focusing channel structure. The scheme provides a focusing structure for providing a focusing effect of a reflected light beam, thereby improving the acquisition accuracy and quality of the subsequent image reflected light beam, and provides a uniform light structure for uniformly processing the light beam emitted by the main light source assembly, thereby improving the uniformity and coverage of the light beam irradiated by the spectroscope to the detection object, thereby improving the subsequent image acquisition effect and detection effect; and provides a focusing channel structure for improving the fill light irradiation effect of the fill light source, thereby ensuring the irradiation direction of the fill light beam, so that the light beam of the fill light source is irradiated to the object to be detected, thereby improving the subsequent image acquisition effect.

[0004] The above patent provides a light source module that can be used for electronic component detection. This light source module uses a main light source, a fill light source, and a lens assembly to achieve the purpose of image acquisition and detection of small components. The main light source and fill light source of the above scheme use a panel light source and a strip light source respectively, but the coordination between these existing light source assemblies is poor, and it is difficult to provide a uniform and stable lighting effect, thus affecting the image acquisition quality; and because the size of small components is small, high light intensity and contrast are required for detection, and the performance of existing light source modules in this regard is often insufficient, making it difficult to clearly highlight the detailed features of components. Summary of the invention

[0005] The purpose of the present invention is to provide an integrated light source module for detecting small components, aiming to improve the problem that the existing light source assembly cannot provide stable lighting effects, affecting the image acquisition quality, and the light source module often has insufficient light intensity, making it difficult to clearly highlight the detailed features of the components.

[0006] The present invention is achieved in that:

[0007] An integrated light source module for detecting small components comprises a lens assembly and a light source assembly, wherein the top and bottom ends of the light source assembly are both opened, and the diameter of the top opening of the light source assembly is larger than the diameter of the bottom opening, and a plurality of light sources are arranged between the top opening and the bottom opening of the light source assembly, for uniformly supplementing light to small components passing through the upper part thereof; the light source assembly is arranged on the top of the lens assembly; and the light source assembly and the lens assembly are connected via a connecting plate, the connecting plate is L-shaped, and fixing holes are arranged at both ends of the connecting plate, and bolts are passed through the fixing holes to connect the two ends of the connecting plate to the light source assembly and the lens assembly respectively, and the lens assembly is used to cooperate with a camera device to collect clear images of small components.

[0008] Furthermore, the lens assembly includes a base plate, two end plates, a first side plate, a second side plate and a top plate, the two end plates are symmetrically arranged at the front and rear ends of the upper surface of the base plate, the first side plate and the second side plate are respectively arranged on both sides of the upper surface of the base plate, and the top plate is arranged at the top end of the second side plate and pressed on the top of the end plates at both ends; the base plate, the two end plates, the first side plate, the second side plate and the top plate are all connected and fixed by bolts; it also includes a vertical lens, a plane lens and a spectroscopic lens, the spectroscopic lens and the vertical lens are arranged between the two end plates, and the bottom end of the vertical lens is against the bottom end of the spectroscopic lens, and the top plate presses the top end of the vertical lens, and the top end of the spectroscopic lens is engaged with the top end of the inner side of the first side plate.

[0009] Furthermore, the bottom plate is provided with a light-transmitting hole, a limit frame is provided along the outer side of the light-transmitting hole on the upper surface of the bottom plate, a supporting platform is formed between the inner side of the limit frame and the light-transmitting hole, a limit baffle is provided at one end of the upper surface of the bottom plate close to the second side plate, a gap is left between the limit baffle and the limit frame, and the bottom ends of the vertical lens and the splitter lens are used to abut against the gap.

[0010] Furthermore, a vertical positioning groove is provided on the inner side surface of the end plate to align with the position of the vertical lens, which is used to position the vertical lens; a positioning oblique groove is provided on the inner side surface of the end plate to align with the position of the splitter lens, which is used to position the splitter lens; connecting edges are symmetrically provided on both sides of the end plate, which are used to be connected to the first side plate and the second side plate by bolts; a fixing groove is provided on the top of the end plate close to the second side plate, which is used to install the top plate; a bayonet is provided on the top of the inner side surface of the first side plate, which is used to snap on the top of the splitter lens; a plurality of bolt holes are provided on both sides of the top plate, which are used to fix the position of the top plate.

[0011] Furthermore, the vertical lens, the plane lens and the beam splitter lens all adopt a combined structure of an aspherical lens and a Fresnel lens.

[0012] Furthermore, the light source assembly includes a base, a mounting frame, a connecting frame, a limiting pressure frame and an outer shell; the base, the mounting frame, the connecting frame, the limiting pressure frame and the outer shell are stacked in sequence from top to bottom, the base, the mounting frame, the connecting frame and the limiting pressure frame are all fixed by bolts, and the outer shell and the base are connected and fixed by bolts; a first fill light assembly is provided between the base and the mounting frame, a second fill light assembly is provided between the mounting frame and the connecting frame, and a third fill light assembly is provided between the connecting frame and the limiting frame; a through hole is provided in the middle of the base, and an annular light strip is installed at the edge of the through hole.

[0013] Furthermore, the first fill light component, the second fill light component and the third fill light component are all composed of multiple light rings, and each light ring has a separate control circuit, and the diameter of the light ring at the top of each fill light component is larger than the diameter of the light ring at its bottom; the first fill light component, the second fill light component and the third fill light component are all conical structures with a top diameter larger than a bottom diameter, and the first fill light component, the second fill light component and the third fill light component as a whole form a conical fill light source with a top diameter larger than a bottom diameter; the first fill light component, the second fill light component and the third fill light component can realize a variety of light-emitting modes such as constant light, flashing and pulse through the control circuit.

[0014] Furthermore, a plurality of countersunk holes are provided on the edge of the base for connecting the base and the shell with bolts; a mounting platform is provided in the middle of the upper surface of the base, a convex ring is provided on the top of the mounting platform, the convex ring is used to be plugged and connected to the bottom of the mounting frame, a limiting ring is provided on the top of the mounting frame, the limiting ring is plugged and connected to the bottom of the connecting frame, an insert ring is provided on the top of the connecting frame, and the insert ring is plugged into the bottom of the limiting pressure frame; a limiting pressure ring is provided on the top of the inner side of the limiting pressure frame, the limiting pressure ring is used to limit and press the top of the third fill light component; connecting holes are provided on the side surfaces of the limiting pressure ring, the connecting frame, the mounting frame and the mounting platform, and connecting grooves are provided on the sides of the convex ring, the limiting ring and the insert ring aligned with the connecting holes, and the purpose of connecting and fixing adjacent components is achieved by bolts passing through the connecting holes and connecting to the connecting grooves.

[0015] Furthermore, a light outlet hole is provided at the top of the shell, and an opening is provided at the bottom of the shell, and pull openings are provided at the sides of the shell near the top; a connector is provided on the side of the shell, and a wire is provided in the middle of the connector, and the internal circuit of the wire is connected to the circuits of the first fill light component, the second fill light component and the third fill light component; an aviation plug is provided at the outward end of the wire.

[0016] Furthermore, the connecting plate is L-shaped, and fixing holes are provided at both ends of the connecting plate, and bolts are passed through the fixing holes to connect the two ends of the connecting plate to the light source assembly and the lens assembly respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The light source assembly of the present invention is provided with a plurality of fill light assemblies from top to bottom, and the plurality of fill light assemblies constitute a frustum-shaped fill light module, and the diameter of the upper fill light assembly is larger than the diameter of the bottom fill light assembly; in this way, sufficient and uniform light source can be provided to the top of the light source assembly; the clarity of the collected image is greatly increased, and sufficient light intensity also makes the detailed features of the small components more clearly highlighted, so that the entire detection equipment can accurately detect the small components.

[0019] 2. Each light ring of each fill light assembly of the present invention can be controlled individually, and the color temperature is adjustable, which can meet the detection requirements of different types of small components and improve the versatility of detection; a variety of light emission modes are available to meet the requirements of different detection scenarios and improve detection efficiency.

[0020] 3. The fill light components are arranged in a cone shape, so that each fill light component has a good space for heat dissipation; the heat dissipation performance is excellent, which ensures the stable operation of the light source module and extends the service life.

[0021] 4. The various components of the lens assembly of the present invention can be disassembled and assembled, which facilitates the replacement or maintenance of the various lenses inside the lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention as a whole at the front oblique top view;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention as a whole at a front oblique upward viewing angle;

[0024] Figure 3 It is a structural schematic diagram of the lens assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the lens assembly of the present invention;

[0026] Figure 5 is a structural schematic diagram of a light source assembly of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the connecting plate of the present invention.

[0028] In the figure: 1, lens assembly; 11, bottom plate; 111, limit baffle; 112, light transmission hole; 113, limit frame; 114, support platform; 12, end plate; 121, fixing groove; 122, positioning vertical groove; 123, positioning oblique groove; 124, connecting edge; 13, first side plate; 131, bayonet; 14, second side plate; 15, top plate; 151, bolt hole; 16, vertical lens; 17, plane lens; 18, splitter lens; 2, light source assembly; 20, ring light belt; 21, base; 2 11. Countersunk hole; 212. Mounting platform; 213. Protruding ring; 22. First fill light component; 23. Mounting frame; 231. Limiting ring; 24. Second fill light component; 25. Connecting frame; 251. Inserting ring; 252. Connecting groove; 26. Third fill light component; 27. Limiting pressure frame; 271. Limiting pressure ring; 272. Connecting hole; 28. Housing; 281. Light outlet hole; 282. Pull mouth; 283. Connector; 284. Wire; 285. Aviation plug; 3. Connecting plate; 31. Fixing hole. DETAILED DESCRIPTION

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection 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.

[0030] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0031] Example 1

[0032] like Figure 1 , Figure 2 and Figure 6As shown, an integrated light source module for detecting small components includes a lens assembly 1 and a light source assembly 2. The light source assembly 2 is opened at the top and bottom, and the diameter of the top opening of the light source assembly 2 is larger than the diameter of the bottom opening. The light source assembly 2 is provided with multiple groups of light sources between the top opening and the bottom opening, which are used to uniformly fill light for small components passing through the upper part. The light source assembly 2 of this structure can make its inner side have sufficient light intensity, and can also make the light more uniform. The light source assembly 2 is arranged on the top of the lens assembly 1. The light source assembly 2 and the lens assembly 1 are connected by a connecting plate 3, which is L-shaped, and both ends of the connecting plate 3 are provided with fixing holes 31. Bolts are used to pass through the fixing holes 31 to connect the two ends of the connecting plate 3 to the light source assembly 2 and the lens assembly 1 respectively. The connecting plate 3 of this structure can make the light source assembly 2 and the lens assembly 1 stably connected. The lens assembly 1 is used to cooperate with the camera equipment to collect clear images of small components.

[0033] like Figure 3 and Figure 4As shown, the lens assembly 1 includes a bottom plate 11, two end plates 12, a first side plate 13, a second side plate 14 and a top plate 15. The two end plates 12 are symmetrically arranged at the front and rear ends of the upper surface of the bottom plate 11. The first side plate 13 and the second side plate 14 are respectively arranged on both sides of the upper surface of the bottom plate 11. The top plate 15 is arranged at the top of the second side plate 14 and pressed on the top of the end plates 12 at both ends. The bottom plate 11, the two end plates 12, the first side plate 13, the second side plate 14 and the top plate 15 are all connected and fixed by bolts. This structure can be used to assemble the housing of the lens assembly 1. The core components inside the lens assembly 1 can be protected by using this housing structure. At the same time, this housing structure can also avoid light dispersion. It also includes a vertical lens 16, a plane lens 17 and a spectroscopic lens 18. The spectroscopic lens 18 and the vertical lens 16 are arranged between two end plates 12, and the bottom end of the vertical lens 16 is against the bottom end of the spectroscopic lens 18, and the top plate 15 presses the top end of the vertical lens 16, and the top end of the spectroscopic lens 18 is engaged with the top end of the inner side of the first side plate 13. This structure can make the vertical lens 16, the plane lens 17 and the spectroscopic lens 18 sufficiently stable, and the mutual cooperation of the vertical lens 16, the plane lens 17 and the spectroscopic lens 18 can also make the picture taken by the camera clearer, which is convenient for accurate photography and detection of small components. The bottom plate 11 is provided with a light-transmitting hole 112, which is convenient for installing the plane lens 17, and the light-transmitting hole 112 is also convenient for cooperating with the shooting equipment, and the workpiece is modified by cooperating with the plane lens 17 through the shooting equipment. A limit frame 113 is provided on the upper surface of the bottom plate 11 along the outer side of the light-transmitting hole 112, and a support 114 is formed between the inner side of the limit frame 113 and the light-transmitting hole 112. The limit frame 113 is used to facilitate the installation of the plane lens 17 and ensure that the plane lens 17 is stable inside the limit frame 113. A limit baffle 111 is provided on the upper surface of the bottom plate 11 near the second side plate 14. A gap is left between the limit baffle 111 and the limit frame 113, and the bottom ends of the vertical lens 16 and the splitter lens 18 are used to abut against the gap. A positioning vertical groove 122 is provided on the inner side surface of the end plate 12 aligned with the position of the vertical lens 16, which is used to position the vertical lens 16. Connecting edges 124 are symmetrically provided on both sides of the end plate 12, which are used to be connected to the first side plate 13 and the second side plate 14 by bolts. A positioning oblique groove 123 is provided on the inner side surface of the end plate 12 aligned with the position of the splitter lens 18, which is used to position the splitter lens 18. A fixing groove 121 is provided on the top of the end plate 12 near the second side plate 14 for mounting the top plate 15. A bayonet 131 is provided on the top of the inner side surface of the first side plate 13 for engaging with the top of the spectroscopic lens 18. Multiple bolt holes 151 are provided on both sides of the top plate 15 for fixing the position of the top plate 15. The vertical lens 16, the plane lens 17 and the spectroscopic lens 18 all adopt a combination structure of an aspherical lens and a Fresnel lens. Through the ray tracing algorithm, the parameters of the lens can be optimized so that the light distribution in the detection area is more uniform.Assume that the illumination distribution of light in the detection area is E(x,y), and the ideal uniform illumination is E0, then the uniformity index U is defined as:.

[0034]

[0035] Where A is the area of ​​the detection area.

[0036] like Figure 5 As shown, the light source assembly 2 includes a base 21, a mounting frame 23, a connecting frame 25, a limit pressing frame 27 and a shell 28. The base 21, the mounting frame 23, the connecting frame 25, the limit pressing frame 27 and the shell 28 are stacked in sequence from top to bottom, and the base 21, the mounting frame 23, the connecting frame 25 and the limit pressing frame 27 are fixed by bolts, and the shell 28 and the base 21 are connected and fixed by bolts. This structure facilitates the assembly and use of the entire light source assembly 2 and facilitates the stable use of the light source assembly 2. A first fill light assembly 22 is provided between the base 21 and the mounting frame 23, a second fill light assembly 24 is provided between the mounting frame 23 and the connecting frame 25, and a third fill light assembly 26 is provided between the connecting frame 25 and the limit pressing frame 27. A through hole is provided in the middle of the base 21, and an annular light strip 20 is installed on the edge of the through hole. The first fill light component 22, the second fill light component 24, the third fill light component 26 and the annular light strip 20 are all convenient for fill light for small components, so that the shooting equipment can more accurately capture the details of small components. The through hole is convenient for matching with the lens component 1, so that the shooting equipment can shoot and detect the workpiece passing through the upper part of the light source component 2 through the lens device and the through hole. The first fill light component 22, the second fill light component 24 and the third fill light component 26 are all composed of multiple light rings, and each light ring has a separate control circuit. The diameter of the light ring at the top of each fill light component is larger than the diameter of the light ring at its bottom. This structure is convenient for adjusting the color temperature and brightness of each light ring according to the needs of use, so as to facilitate adjusting the corresponding light intensity and color temperature according to small components of different structures, so that the shooting equipment can more accurately take pictures of small components. The first fill light component 22, the second fill light component 24 and the third fill light component 26 are all conical structures with a top diameter larger than the bottom diameter. The first fill light component 22, the second fill light component 24 and the third fill light component 26 as a whole form a conical fill light source with a top diameter larger than the bottom diameter. The fill light source of this structure can provide sufficiently uniform and high-intensity lighting, and at the same time does not affect the shooting of small components by the shooting equipment. The first fill light component 22, the second fill light component 24 and the third fill light component 26 can realize multiple lighting modes such as constant light, flashing and pulse through the control circuit. In the pulse mode, the light-emitting time t1 and the extinction time t2 of the light source can be adjusted according to the detection requirements, and the pulse period T p =t1+t2, pulse duty cycle The edge of the base 21 is provided with a plurality of countersunk holes 211, which are used to connect the base 21 and the housing 28 with bolts. A mounting platform 212 is provided in the middle of the upper surface of the base 21, and a convex ring 213 is provided at the top of the mounting platform 212. The convex ring 213 is used to be plugged and connected with the bottom of the mounting frame 23. A limiting ring 231 is provided at the top of the mounting frame 23. The limiting ring 231 is plugged and connected with the bottom of the connecting frame 25. An insert ring 251 is provided at the top of the connecting frame 25. The insert ring 251 is plugged into the bottom of the limiting pressure frame 27. A limiting pressure ring 271 is provided at the top of the inner side of the limiting pressure frame 27. The limiting pressure ring 271 is used to limit and press the top of the third fill light component 26. The side of the limiting pressure ring 271, the connection frame 25, the installation frame 23 and the installation platform 212 are all provided with connection holes 272, and the side of the convex ring 213, the limiting ring 231 and the inserting ring 251 are aligned with the position of the connection hole 272. The bolts pass through the connection hole 272 and are connected with the connection groove 252 to achieve the purpose of connecting and fixing the adjacent components. This structure facilitates the accurate and stable matching of the various components of the light source assembly 2, and also facilitates the sufficient stability between the various components. At the same time, it also provides a stable installation space for the first fill light assembly 22, the second fill light assembly 24 and the third fill light assembly 26, which is convenient for the stable use of the first fill light assembly 22, the second fill light assembly 24 and the third fill light assembly 26. The top of the shell 28 is provided with a light outlet 281, and the light outlet 281 is convenient for the light emitted by each fill light assembly to be irradiated from the light outlet 281. The bottom of the shell 28 is open, and the side of the shell 28 near the top is provided with a pull-out 282. The pull-out 282 is convenient for the disassembly and assembly of the shell 28. A connector 283 is provided on the side of the housing 28, and a wire 284 is provided in the middle of the connector 283. The internal circuit of the wire 284 is connected to the circuits of the first fill light component 22, the second fill light component 24 and the third fill light component 26. An aviation plug 285 is provided at one end of the wire 284 facing outward. This structure facilitates the power supply of the entire light source module through the cooperation of the wire 284 and the aviation plug 285, and facilitates the operation and use of the entire light source module.

[0037] Working principle: When in use, the light source assembly 2 and the lens assembly 1 are fixed by the connecting plate 3, and then the position of the shooting device is fixed, and the plane lens 17 at the bottom of the lens assembly 1 is pressed against the shooting end of the shooting device. Then the entire light source module is fixed to make the light source module stable. After that, the light source assembly 2 is powered on, and the shooting device is controlled to take pictures. Through the pictures, the shortcomings of the shooting picture are observed, and then the controller that controls the light source assembly 2 is used to control the light ring of each fill light assembly inside the light source assembly 2, and the light intensity and color temperature of each light ring are adjusted until the shooting device can clearly capture the details of the small components. Then, it is only necessary to control the shooting device to take pictures, and at the same time, the small components to be detected pass through the top of the light source assembly 2 in turn. Through the shooting device, the lens assembly 1 and the light source assembly 2 can clearly and effectively capture the details of the small components, so as to judge whether the small components are qualified. Compared with the prior art, the light source assembly 2 of the present application is provided with multiple fill light assemblies from top to bottom, and the multiple fill light assemblies constitute a cone-shaped fill light module, and the diameter of the upper fill light assembly is greater than the diameter of the bottom fill light assembly. In this way, sufficient and uniform light source can be provided to the top of the light source assembly 2, so that the clarity of the collected image is greatly increased, and sufficient light intensity also makes the details of the small components more clearly highlighted, so that the entire detection device can accurately detect the small components.

[0038] Example 2

[0039] like Figure 1 , Figure 2 and Figure 6 As shown, an integrated light source module for detecting small components includes a lens assembly 1 and a light source assembly 2. The light source assembly 2 is opened at the top and bottom, and the diameter of the top opening of the light source assembly 2 is larger than the diameter of the bottom opening. The light source assembly 2 is provided with multiple groups of light sources between the top opening and the bottom opening, which are used to uniformly fill light for small components passing through the upper part. The light source assembly 2 of this structure can make its inner side have sufficient light intensity, and can also make the light more uniform. The light source assembly 2 is arranged on the top of the lens assembly 1. The light source assembly 2 and the lens assembly 1 are connected by a connecting plate 3, which is L-shaped, and both ends of the connecting plate 3 are provided with fixing holes 31. Bolts are used to pass through the fixing holes 31 to connect the two ends of the connecting plate 3 to the light source assembly 2 and the lens assembly 1 respectively. The connecting plate 3 of this structure can make the light source assembly 2 and the lens assembly 1 stably connected. The lens assembly 1 is used to cooperate with the camera equipment to collect clear images of small components.

[0040] like Figure 3 and Figure 4As shown, the lens assembly 1 includes a bottom plate 11, two end plates 12, a first side plate 13, a second side plate 14 and a top plate 15. The two end plates 12 are symmetrically arranged at the front and rear ends of the upper surface of the bottom plate 11. The first side plate 13 and the second side plate 14 are respectively arranged on both sides of the upper surface of the bottom plate 11. The top plate 15 is arranged at the top of the second side plate 14 and pressed on the top of the end plates 12 at both ends. The bottom plate 11, the two end plates 12, the first side plate 13, the second side plate 14 and the top plate 15 are all connected and fixed by bolts. This structure can be used to assemble the housing of the lens assembly 1. The core components inside the lens assembly 1 can be protected by using this housing structure. At the same time, this housing structure can also avoid light dispersion. It also includes a vertical lens 16, a plane lens 17 and a spectroscopic lens 18. The spectroscopic lens 18 and the vertical lens 16 are arranged between two end plates 12, and the bottom end of the vertical lens 16 is against the bottom end of the spectroscopic lens 18, and the top plate 15 presses the top end of the vertical lens 16, and the top end of the spectroscopic lens 18 is engaged with the top end of the inner side of the first side plate 13. This structure can make the vertical lens 16, the plane lens 17 and the spectroscopic lens 18 sufficiently stable, and the mutual cooperation of the vertical lens 16, the plane lens 17 and the spectroscopic lens 18 can also make the picture taken by the camera clearer, which is convenient for accurate photography and detection of small components. The bottom plate 11 is provided with a light-transmitting hole 112, which is convenient for installing the plane lens 17, and the light-transmitting hole 112 is also convenient for cooperating with the shooting equipment, and the workpiece is modified by cooperating with the plane lens 17 through the shooting equipment. A limit frame 113 is provided on the upper surface of the bottom plate 11 along the outer side of the light-transmitting hole 112, and a support 114 is formed between the inner side of the limit frame 113 and the light-transmitting hole 112. The limit frame 113 is used to facilitate the installation of the plane lens 17 and ensure that the plane lens 17 is stable inside the limit frame 113. A limit baffle 111 is provided on the upper surface of the bottom plate 11 near the second side plate 14. A gap is left between the limit baffle 111 and the limit frame 113, and the bottom ends of the vertical lens 16 and the splitter lens 18 are used to abut against the gap. A positioning vertical groove 122 is provided on the inner side surface of the end plate 12 aligned with the position of the vertical lens 16, which is used to position the vertical lens 16. Connecting edges 124 are symmetrically provided on both sides of the end plate 12, which are used to be connected to the first side plate 13 and the second side plate 14 by bolts. A positioning oblique groove 123 is provided on the inner side surface of the end plate 12 aligned with the position of the splitter lens 18, which is used to position the splitter lens 18. A fixing groove 121 is provided on the top of the end plate 12 near the second side plate 14 for mounting the top plate 15. A bayonet 131 is provided on the top of the inner side surface of the first side plate 13 for engaging with the top of the spectroscopic lens 18. Multiple bolt holes 151 are provided on both sides of the top plate 15 for fixing the position of the top plate 15. The vertical lens 16, the plane lens 17 and the spectroscopic lens 18 all adopt a combination structure of an aspherical lens and a Fresnel lens. Through the ray tracing algorithm, the parameters of the lens can be optimized so that the light distribution in the detection area is more uniform.Assume that the illumination distribution of light in the detection area is E(x,y), and the ideal uniform illumination is E0, then the uniformity index U is defined as:.

[0041]

[0042] Where A is the area of ​​the detection area.

[0043] like Figure 5 As shown, the light source assembly 2 includes a base 21, a mounting frame 23, a connecting frame 25, a limit pressing frame 27 and a shell 28. The base 21, the mounting frame 23, the connecting frame 25, the limit pressing frame 27 and the shell 28 are stacked in sequence from top to bottom, and the base 21, the mounting frame 23, the connecting frame 25 and the limit pressing frame 27 are fixed by bolts, and the shell 28 and the base 21 are connected and fixed by bolts. This structure facilitates the assembly and use of the entire light source assembly 2 and facilitates the stable use of the light source assembly 2. A first fill light assembly 22 is provided between the base 21 and the mounting frame 23, a second fill light assembly 24 is provided between the mounting frame 23 and the connecting frame 25, and a third fill light assembly 26 is provided between the connecting frame 25 and the limit pressing frame 27. A through hole is provided in the middle of the base 21, and an annular light strip 20 is installed on the edge of the through hole. The first fill light component 22, the second fill light component 24, the third fill light component 26 and the annular light strip 20 are all convenient for fill light for small components, so that the shooting equipment can more accurately capture the details of small components. The through hole is convenient for matching with the lens component 1, so that the shooting equipment can shoot and detect the workpiece passing through the upper part of the light source component 2 through the lens device and the through hole. The first fill light component 22, the second fill light component 24 and the third fill light component 26 are all composed of multiple light rings, and each light ring has a separate control circuit. The diameter of the light ring at the top of each fill light component is larger than the diameter of the light ring at its bottom. This structure is convenient for adjusting the color temperature and brightness of each light ring according to the needs of use, so as to facilitate adjusting the corresponding light intensity and color temperature according to small components of different structures, so that the shooting equipment can more accurately take pictures of small components. The first fill light component 22, the second fill light component 24 and the third fill light component 26 are all conical structures with a top diameter larger than the bottom diameter. The first fill light component 22, the second fill light component 24 and the third fill light component 26 as a whole form a conical fill light source with a top diameter larger than the bottom diameter. The fill light source of this structure can provide sufficiently uniform and high-intensity lighting, and at the same time does not affect the shooting of small components by the shooting equipment. The first fill light component 22, the second fill light component 24 and the third fill light component 26 can realize multiple lighting modes such as constant light, flashing and pulse through the control circuit. In the pulse mode, the light-emitting time t1 and the extinction time t2 of the light source can be adjusted according to the detection requirements, and the pulse period T p =t1+t2, pulse duty cycle The edge of the base 21 is provided with a plurality of countersunk holes 211, which are used to connect the base 21 and the housing 28 with bolts. A mounting platform 212 is provided in the middle of the upper surface of the base 21, and a convex ring 213 is provided at the top of the mounting platform 212. The convex ring 213 is used to be plugged and connected with the bottom of the mounting frame 23. A limiting ring 231 is provided at the top of the mounting frame 23. The limiting ring 231 is plugged and connected with the bottom of the connecting frame 25. An insert ring 251 is provided at the top of the connecting frame 25. The insert ring 251 is plugged into the bottom of the limiting pressure frame 27. A limiting pressure ring 271 is provided at the top of the inner side of the limiting pressure frame 27. The limiting pressure ring 271 is used to limit and press the top of the third fill light component 26. The side of the limiting pressure ring 271, the connection frame 25, the installation frame 23 and the installation platform 212 are all provided with connection holes 272, and the side of the convex ring 213, the limiting ring 231 and the inserting ring 251 are aligned with the position of the connection hole 272. The bolts pass through the connection hole 272 and are connected with the connection groove 252 to achieve the purpose of connecting and fixing the adjacent components. This structure facilitates the accurate and stable matching of the various components of the light source assembly 2, and also facilitates the sufficient stability between the various components. At the same time, it also provides a stable installation space for the first fill light assembly 22, the second fill light assembly 24 and the third fill light assembly 26, which is convenient for the stable use of the first fill light assembly 22, the second fill light assembly 24 and the third fill light assembly 26. The top of the shell 28 is provided with a light outlet 281, and the light outlet 281 is convenient for the light emitted by each fill light assembly to be irradiated from the light outlet 281. The bottom of the shell 28 is open, and the side of the shell 28 near the top is provided with a pull-out 282. The pull-out 282 is convenient for the disassembly and assembly of the shell 28. A connector 283 is provided on the side of the housing 28, and a wire 284 is provided in the middle of the connector 283. The internal circuit of the wire 284 is connected to the circuits of the first fill light component 22, the second fill light component 24 and the third fill light component 26. An aviation plug 285 is provided at one end of the wire 284 facing outward. This structure facilitates the power supply of the entire light source module through the cooperation of the wire 284 and the aviation plug 285, and facilitates the operation and use of the entire light source module.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated light source module for detecting small components, comprising a lens assembly (1), characterized in that: It also comprises a light source assembly (2), the top and bottom of the light source assembly (2) are both opened, the diameter of the top opening of the light source assembly (2) is larger than the diameter of the bottom opening, and the light source assembly (2) is provided with a plurality of light sources between the top opening and the bottom opening, for uniformly supplementing light for small components passing through the upper part thereof; the light source assembly (2) is arranged on the top of the lens assembly (1); and the light source assembly (2) and the lens assembly (1) are connected via a connecting plate (3), and the lens assembly (1) is used to cooperate with a camera device to collect clear images of small components.

2. The integrated light source module for detecting small components according to claim 1, characterized in that: The lens assembly (1) comprises a bottom plate (11), two end plates (12), a first side plate (13), a second side plate (14) and a top plate (15); the two end plates (12) are symmetrically arranged at the front and rear ends of the upper surface of the bottom plate (11); the first side plate (13) and the second side plate (14) are respectively arranged on both sides of the upper surface of the bottom plate (11); the top plate (15) is arranged at the top of the second side plate (14) and pressed on the top of the end plates (12) at both ends; the bottom plate (11), the two end plates (12), the first side plate (13), the second side plate (14) and the top plate (15) are The first side plate (13), the second side plate (14) and the top plate (15) are all connected and fixed by bolts; and the first side plate (13), the second side plate (14) and the top plate (15) also include a vertical lens (16), a plane lens (17) and a splitter lens (18), wherein the splitter lens (18) and the vertical lens (16) are arranged between the two end plates (12), and the bottom end of the vertical lens (16) is against the bottom end of the splitter lens (18), and the top plate (15) is pressed against the top end of the vertical lens (16), and the top end of the splitter lens (18) is engaged with the top end of the inner side of the first side plate (13).

3. The integrated light source module for detecting small components according to claim 2, characterized in that: The bottom plate (11) is provided with a light-transmitting hole (112); a limit frame (113) is provided on the upper surface of the bottom plate (11) along the outer side of the light-transmitting hole (112); a support platform (114) is formed between the inner side of the limit frame (113) and the light-transmitting hole (112); a limit baffle (111) is provided at one end of the upper surface of the bottom plate (11) close to the second side plate (14); a gap is left between the limit baffle (111) and the limit frame (113), and the bottom ends of the vertical lens (16) and the beam splitting lens (18) are abutted against the gap.

4. The integrated light source module for detecting small components according to claim 2, characterized in that: The inner side surface of the end plate (12) is aligned with the position of the vertical lens (16) and is provided with a positioning vertical groove (122) for positioning the vertical lens (16); the inner side surface of the end plate (12) is aligned with the position of the splitter lens (18) and is provided with a positioning oblique groove (123) for positioning the splitter lens (18); the end plate (12) is symmetrically provided with connecting edges (124) on both sides, which are used to be connected with the first side plate (13) and the second side plate (14) by bolts; the top of the end plate (12) is provided with a fixing groove (121) on the side close to the second side plate (14) for installing the top plate (15); the top of the inner side surface of the first side plate (13) is provided with a bayonet (131) for clamping on the top of the splitter lens (18); and the top plate (15) is provided with a plurality of bolt holes (151) on both sides for fixing the position of the top plate (15).

5. An integrated light source module for detecting small components according to any one of claims 2 to 4, characterized in that: The vertical lens (16), the plane lens (17) and the beam splitting lens (18) all adopt a combined structure of an aspherical lens and a Fresnel lens.

6. The integrated light source module for detecting small components according to claim 1, characterized in that: The light source assembly (2) comprises a base (21), a mounting frame (23), a connecting frame (25), a limiting pressure frame (27) and a shell (28); the base (21), the mounting frame (23), the connecting frame (25), the limiting pressure frame (27) and the shell (28) are stacked in sequence from top to bottom; the base (21), the mounting frame (23), the connecting frame (25) and the limiting pressure frame (27) are fixed by bolts, and the shell (28) and the base (21) are connected and fixed by bolts; a first fill light assembly (22) is arranged between the base (21) and the mounting frame (23), a second fill light assembly (24) is arranged between the mounting frame (23) and the connecting frame (25), and a third fill light assembly (26) is arranged between the connecting frame (25) and the limiting pressure frame (27); a through hole is arranged in the middle of the base (21), and an annular light strip (20) is installed on the edge of the through hole.

7. The integrated light source module for detecting small components according to claim 6, characterized in that: The first fill light component (22), the second fill light component (24) and the third fill light component (26) are all composed of a plurality of light rings, and each light ring has a separate control circuit. The diameter of the light ring at the top of each fill light component is greater than the diameter of the light ring at the bottom. The first fill light component (22), the second fill light component (24) and the third fill light component (26) are all conical structures with a top diameter greater than a bottom diameter. The first fill light component (22), the second fill light component (24) and the third fill light component (26) as a whole form a conical fill light source with a top diameter greater than a bottom diameter. The first fill light component (22), the second fill light component (24) and the third fill light component (26) can realize a plurality of light emission modes, including constant light, flashing and pulse, through the control circuit.

8. The integrated light source module for detecting small components according to claim 6, characterized in that: The base (21) is provided with a plurality of countersunk holes (211) on its edge for connecting the base (21) and the housing (28) with bolts; a mounting platform (212) is provided in the middle of the upper surface of the base (21); a convex ring (213) is provided at the top of the mounting platform (212); the convex ring (213) is used for plugging and connecting with the bottom of the mounting frame (23); a limiting ring (231) is provided at the top of the mounting frame (23); the limiting ring (231) is plugged and connected with the bottom of the connecting frame (25); an insert ring (251) is provided at the top of the connecting frame (25); the insert ring (251) is plugged into the bottom of the limiting pressure frame (27) The limiting pressure frame (27) is provided with a limiting pressure ring (271) at the top of the inner side, and the limiting pressure ring (271) is used to limit and press the top of the third fill light component (26); the limiting pressure ring (271), the connecting frame (25), the mounting frame (23) and the mounting platform (212) are all provided with connecting holes (272) on the side, and the convex ring (213), the limiting ring (231) and the inserting ring (251) are all provided with connecting grooves (252) at the positions aligned with the connecting holes (272), and the bolts are passed through the connecting holes (272) and connected to the connecting grooves (252) to achieve the purpose of connecting and fixing the adjacent components.

9. The integrated light source module for detecting small components according to claim 6, characterized in that: The top of the shell (28) is provided with a light outlet hole (281), and the bottom of the shell (28) is open, and the side of the shell (28) near the top is provided with a pull-out opening (282); the side of the shell (28) is provided with a connector (283), and the middle of the connector (283) is provided with a wire (284), and the internal circuit of the wire (284) is connected to the circuits of the first fill light component (22), the second fill light component (24) and the third fill light component (26); the outer end of the wire (284) is provided with an aviation plug (285).

10. The integrated light source module for detecting small components according to claim 1, characterized in that: The connecting plate (3) is L-shaped, and both ends of the connecting plate (3) are provided with fixing holes (31). Bolts are passed through the fixing holes (31) to connect the two ends of the connecting plate (3) to the light source assembly (2) and the lens assembly (1) respectively.

Images