Integrally-formed energy-saving high-precision machine vision tunnel linear light source

Abstract

The invention discloses an integrally-formed energy-saving high-precision machine vision tunnel linear light source, and relates to the technical field of high-precision machine vision tunnel linear light sources, and the light source comprises a light guide part, a transmission part and a cleaning part. According to the light guide part, a light guide shell, a first light guide arc-shaped plate, a second light guide arc-shaped plate, light guide heat dissipation strips and light guide heat dissipation fins are integrally formed in an extrusion mode through high-heat-conduction aluminum alloy profiles, interface thermal resistance of a traditional split type structure is eliminated, and a continuous and efficient heat conduction path is formed. The transmission part is arranged on the light guide shell, and a linkage mechanism is formed by the transmission connecting rod, the transmission frame and the reset spring. The cleaning part comprises a cleaning shaft, a cleaning gear and a detachable cleaning cylinder, the cleaning cylinder rotates through meshing of the gear and the gear ring, and the surface of the arc-shaped plate is automatically wiped and cleaned in cooperation with guiding of the transmission groove. The device has the advantages of being excellent in heat dissipation performance, high in optical precision and convenient to maintain, and is suitable for industrial machine vision scenes such as PCB defect detection and precise size measurement.

Description

Technical Field

[0001] This invention relates to the field of high-precision machine vision tunnel linear light source technology, specifically a one-piece molded energy-saving high-precision machine vision tunnel linear light source. Background Technology

[0002] In the field of machine vision inspection, tunnel linear light sources, due to their unique arc-shaped reflection structure, can form a highly uniform illumination area and are widely used in industrial scenarios such as PCB board surface defect detection and metal workpiece size measurement. However, existing technologies have significant shortcomings in practical applications: On the one hand, existing tunnel linear light sources mostly adopt a split assembly structure, with interface thermal resistance in the heat dissipation path and low heat conduction efficiency, leading to increased LED junction temperature and accelerated light decay. Furthermore, the separate processing of the arc-shaped reflector and the outer shell makes it difficult to ensure geometric accuracy and surface consistency, affecting the uniformity of light reflection. On the other hand, existing light sources lack an effective optical surface cleaning and maintenance mechanism. In dusty and oily environments in industrial sites, contaminants easily adhere to the surface of the arc-shaped reflector, causing a decrease in illuminance and uneven light spots. Manual periodic disassembly and cleaning is not only costly and affects production continuity, but may also cause optical component misalignment. At the same time, existing products rely entirely on manual operation and lack an automatic or semi-automatic cleaning mechanism integrated with the light source structure, which cannot meet the requirements of intelligent production lines for equipment autonomous maintenance capabilities. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides the following technical solution: an integrated, energy-saving, high-precision machine vision tunnel linear light source, comprising: The light guide section includes a light guide shell, with a light guide LED light one and a light guide LED light two respectively arranged on the bottom two sides of the light guide shell; a light guide arc plate two is arranged on one side of the light guide LED light one, and a light guide arc plate one is arranged on one side of the light guide LED light two; multiple light guide heat dissipation strips are arranged on the inner wall of the light guide shell for heat dissipation, and multiple light guide heat dissipation fins are arranged on the bottom of the light guide shell for heat dissipation. The transmission part is disposed on the light guide housing. The transmission part includes a transmission support plate disposed on the light guide housing. A transmission groove is formed on the transmission support plate. A transmission connecting rod one and a transmission connecting rod two are coaxially rotatably disposed at the center of the transmission groove. The cleaning section is provided on the first transmission link and the second transmission link. The cleaning section includes cleaning shafts that are rotatably provided on the first transmission link and the second transmission link respectively. Both cleaning shafts are slidably provided in the transmission groove and the transmission frame. Each cleaning shaft is fixedly provided with a cleaning gear. Each cleaning shaft has a cleaning cylinder for cleaning the first light guide arc plate and the second light guide arc plate detachably provided on its outer wall. Furthermore, the cleaning gear meshes with a transmission gear ring mounted on the transmission bearing plate to drive the cleaning cylinder to rotate.

[0004] Furthermore, the top of the light guide housing is provided with multiple heat dissipation slots, and both side walls of the light guide housing are provided with light guide heat dissipation shells, with a heat dissipation motor installed inside the light guide heat dissipation shells.

[0005] Furthermore, the transmission frame is slidably sleeved on the outer wall of the transmission guide post. There are two transmission guide posts, which are fixedly mounted on the transmission bearing plate. Each transmission guide post has a transmission reset spring on its outer wall for resetting the transmission frame.

[0006] Furthermore, a plurality of cleaning protrusions are fixedly provided on the outer wall of the cleaning shaft, the cleaning protrusions being adapted to the inner wall of the cleaning cylinder, and the cleaning cylinder being fixed to the cleaning shaft by cleaning bolts.

[0007] Furthermore, the spacing between adjacent light-guiding heat dissipation fins is 4mm, and the height of the light-guiding heat dissipation fins is 18mm.

[0008] Furthermore, the first light guide arc plate, the second light guide arc plate, and the light guide shell are integrally extruded from a high thermal conductivity aluminum alloy profile, and the inner wall is coated with a nano-sprayed diffuse reflection texture.

[0009] Furthermore, both the second and the first light-guide arc plate are provided with multiple light-guide positioning grooves on their outer walls.

[0010] The beneficial effects of this invention compared to the prior art are: 1. Significantly improves heat dissipation efficiency and extends the lifespan of the light source; This invention uses a high thermal conductivity aluminum alloy profile to integrally extrude and form a light guide arc plate, a light guide arc plate, a light guide shell, light guide heat dissipation strips, and light guide heat dissipation fins, eliminating the interface thermal resistance present in traditional split assembly structures and forming a continuous and efficient heat conduction path. Simultaneously, by setting multiple light guide heat dissipation strips on the inner wall of the shell, setting light guide heat dissipation fins with a spacing of 4mm and a height of 18mm at the bottom, and configuring a light guide heat dissipation shell with a heat dissipation motor on the side wall, a multi-dimensional three-dimensional heat dissipation system is constructed, effectively reducing LED junction temperature, slowing down light decay, and extending the lifespan of the light source.

[0011] 2. Ensuring optical precision and illumination uniformity: The light guide arc plate one, the light guide arc plate two, and the light guide shell of this invention are integrally extruded, ensuring the geometric precision and surface consistency of the arc-shaped reflective structure and avoiding positional deviations caused by separate processing and assembly; at the same time, the inner wall of the arc plate is treated with nano-sprayed diffuse reflection texture, which improves the uniformity of light reflection, thereby ensuring the high uniformity of illumination area required for machine vision inspection.

[0012] 3. Enables convenient cleaning and maintenance of optical surfaces, ensuring long-term stable operation; This invention innovatively integrates the transmission and cleaning units. By pressing the transmission frame, the transmission linkage one and two are driven in tandem, causing the cleaning shaft to slide along the transmission groove. Simultaneously, the meshing of the cleaning gear and the transmission gear ring drives the cleaning cylinder to rotate, achieving automatic wiping and cleaning of the surfaces of the first and second light guide arc plates. This mechanism can quickly complete maintenance without disassembling the light source, avoiding the problems of high maintenance costs, production interruptions, and optical component misalignment caused by manual periodic disassembly and cleaning, thus meeting the requirements of intelligent production lines for autonomous equipment maintenance capabilities.

[0013] 4. The cleaning components can be quickly replaced, reducing maintenance costs; the cleaning cylinder of this invention is detachably fixed to the cleaning shaft by cleaning bolts. When the cleaning cylinder becomes dirty after long-term use, it can be removed and replaced simply by loosening the cleaning bolts. The maintenance operation is simple and quick, further reducing the later maintenance costs of the equipment.

[0014] 5. Compact structure and high integration: The transmission part and cleaning part of this invention are directly set on the light guide shell, and automatic reset is achieved by using the transmission reset spring. The overall structure is compact and highly integrated with the light source body, without occupying additional installation space, and adapting to the space constraints of industrial sites. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 3 .

[0018] Figure 4 This is a partial structural diagram of the light guide portion of the present invention.

[0019] Figure 5 This is a partial structural diagram of the transmission part of the present invention.

[0020] Figure 6 This is a schematic diagram of a partial structure of the cleaning part of the present invention. Figure 1 .

[0021] Figure 7 This is a schematic diagram of a partial structure of the cleaning part of the present invention. Figure 2 .

[0022] Figure 8 This is a schematic diagram of a partial structure of the cleaning part of the present invention. Figure 3 .

[0023] Figure 9This is a partial structural diagram of the cleaning cylinder of the present invention.

[0024] Figure 10 This is a partial structural cross-sectional view of the cleaning section of the present invention.

[0025] Reference numerals: 1-Light guide section; 2-Transmission section; 3-Cleaning section; 101-Light guide housing; 102-Light guide connector; 103-Light guide heat dissipation housing; 104-Light guide arc plate one; 105-Light guide heat dissipation fins; 106-Light guide positioning groove; 107-Light guide LED lamp one; 108-Light guide LED lamp two; 109-Light guide heat dissipation strip; 110-Heat dissipation strip; 111-Light guide arc plate two; 201-Transmission connecting rod one; 202-Transmission connecting rod two; 203-Transmission frame; 204-Transmission return spring; 205-Transmission guide post; 206-Transmission groove; 207-Transmission gear ring; 208-Transmission bearing plate; 301-Cleaning shaft; 302-Cleaning gear; 303-Cleaning protrusion; 304-Cleaning bolt; 305-Cleaning cylinder. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 10 As shown, an integrated, energy-saving, high-precision machine vision tunnel linear light source includes a light guide 1, a transmission part 2, and a cleaning part 3.

[0028] The light guide section 1 includes a light guide housing 101, a light guide connector 102, a light guide heat sink 103, a light guide arc plate 104, a light guide heat sink 105, a light guide positioning groove 106, a light guide LED 107, a light guide LED 2 108, a light guide heat sink 109, a heat sink 110, and a light guide arc plate 2 111. A light guide connector 102 is fixedly installed on the top of the light guide housing 101, and light guide LED 107 and light guide LED 2 108 are respectively installed on both sides of the bottom of the light guide housing 101. A light guide arc plate is provided on one side of the light guide LED 107. A second-shaped plate 111 and a second-shaped LED light 108 are provided on one side with a light-guiding arc plate 104. Multiple light-guiding heat dissipation strips 109 are provided on the inner wall of the light-guiding housing 101 for heat dissipation. The light-guiding heat dissipation strips 109 are integrally formed with the light-guiding housing 101. Multiple light-guiding heat dissipation fins 105 are provided at the bottom of the light-guiding housing 101. Multiple heat dissipation grooves are provided on the top of the light-guiding housing 101. Light-guiding heat dissipation shells 103 are provided on both side walls of the light-guiding housing 101. A heat dissipation motor is installed inside the heat dissipation shell 103, and a heat dissipation fan blade is fixedly installed at the output end of the heat dissipation motor. Adjacent light-guiding heat dissipation fins 105 are arranged parallel to each other with a spacing of 4mm, and the height of the light-guiding heat dissipation fins 105 is 18mm. The light guide arc plate 104, light guide arc plate 2 111, light guide shell 101, light guide heat dissipation strip 109, light guide heat dissipation fins 105, heat dissipation strip 110, and light guide positioning groove 106 are integrally extruded from high thermal conductivity aluminum alloy profiles. The inner walls of the light guide arc plate 104 and the light guide arc plate 2 111 are coated with a nano-sprayed diffuse reflection texture. Multiple light guide positioning grooves 106 are provided on the outer walls of both the light guide arc plate 2 111 and the light guide arc plate 104. Heat dissipation strips 110 are provided on the outer walls of both the light guide arc plate 2 111 and the light guide arc plate 104 for heat dissipation.

[0029] The transmission unit 2 is mounted on the light guide housing 101. The transmission unit 2 includes a first transmission link 201, a second transmission link 202, a transmission frame 203, a transmission return spring 204, a transmission guide post 205, a transmission groove 206, a transmission gear ring 207, and a transmission support plate 208. The transmission support plate 208 is mounted on the light guide housing 101. The transmission groove 206 is provided on the transmission support plate 208. The transmission groove 206 is adapted to the inner wall of the first light guide arc plate 104 and the second light guide arc plate 111. The first transmission link 201 and the second transmission link 202 are coaxially rotatably mounted at the center of the transmission groove 206. The transmission frame 203 is slidably sleeved on the outer wall of the transmission guide post 205. There are two transmission guide posts 205, which are fixedly mounted on the transmission support plate 208. Each transmission guide post 205 has a transmission return spring 204 on its outer wall for resetting the transmission frame 203.

[0030] The cleaning unit 3 is mounted on the first transmission link 201 and the second transmission link 202. The cleaning unit 3 includes cleaning shafts 301 that are rotatably mounted on the first transmission link 201 and the second transmission link 202, respectively. Both cleaning shafts 301 are slidably mounted in the transmission groove 206 and the transmission frame 203. Each cleaning shaft 301 is fixedly mounted with a cleaning gear 302. Each cleaning shaft 301 has a cleaning cylinder 305 detachably mounted on its outer wall for cleaning the first light guide arc plate 104 and the second light guide arc plate 111. The cleaning gear 302 meshes with the transmission gear ring 207 mounted on the transmission support plate 208 to drive the cleaning cylinder 305 to rotate. Multiple cleaning protrusions 303 are fixedly mounted on the outer wall of the cleaning shaft 301. The cleaning protrusions 303 are adapted to the inner wall of the cleaning cylinder 305. The cleaning cylinder 305 is fixed to the cleaning shaft 301 by cleaning bolts 304. The cleaning cylinder 305 is made of sponge.

[0031] like Figures 1 to 10 As shown, the present invention discloses an integrated, energy-saving, high-precision machine vision tunnel linear light source, the working principle of which is as follows: During cleaning, the operator presses the transmission frame 203, causing it to slide downwards on the transmission guide post 205. At this time, the transmission return spring 204 is compressed. As the transmission frame 203 slides downwards, under the action of the transmission groove 206, the first transmission link 201 and the second transmission link 202 rotate in opposite directions, causing the cleaning parts 3 mounted on the first and second transmission links 201 and 202 to slide simultaneously. At this time, the cleaning gear 302 meshes with the transmission gear ring 207, causing the cleaning gear 302 to rotate. The rotation of 302 drives the cleaning shaft 301 and the cleaning cylinder 305 to rotate. As the cleaning cylinder 305 rotates, it wipes the surfaces of the first light guide arc plate 104 and the second light guide arc plate 111, ensuring that their surfaces are always clean. After wiping, the transmission frame 203 resets under the action of the transmission return spring 204. At this time, the first transmission link 201 and the second transmission link 202 synchronously drive the cleaning part 3 to reset to its initial position under the action of the transmission frame 203, completing the cleaning process. After prolonged use, if the cleaning cylinder 305 becomes dirty, simply loosen the cleaning bolt 304 and remove the cleaning cylinder 305 from the cleaning shaft 301 for replacement.

[0032] Light guide LED 107 and light guide LED 2 108 are connected to light guide connector 102 via wires. Light guide connector 102 is connected to a 48V constant current controller. The 48V constant current controller is connected to an external power supply and converts the input power into a stable DC current required by light guide LED 107 and light guide LED 2 108 through internal rectification, filtering, and voltage regulation circuits. External control signals (such as camera trigger signals, PLC level signals, and host computer instructions) are input to the signal interface of the 48V constant current controller. The internal switching circuit of the controller (MOSFET, relay, or thyristor) realizes the lighting or extinguishing, flicker triggering, or brightness adjustment of the light guide LED 107 and light guide LED 2 108 according to the level or pulse command of the input signal.

Claims

1. A one-piece molded energy-saving, high-precision machine vision tunnel linear light source, characterized in that, include: The light guide part (1) includes a light guide shell (101), and light guide LED lamp one (107) and light guide LED lamp two (108) are respectively arranged on both sides of the bottom of the light guide shell (101); a light guide arc plate two (111) is arranged on one side of the light guide LED lamp one (107), and a light guide arc plate one (104) is arranged on one side of the light guide LED lamp two (108); a plurality of light guide heat dissipation strips (109) for heat dissipation are arranged on the inner wall of the light guide shell (101), and a plurality of light guide heat dissipation fins (105) for heat dissipation are arranged on the bottom of the light guide shell (101). The transmission part (2) is disposed on the light guide housing (101). The transmission part (2) includes a transmission support plate (208) disposed on the light guide housing (101). A transmission groove (206) is provided on the transmission support plate (208). A transmission connecting rod one (201) and a transmission connecting rod two (202) are coaxially rotatably disposed at the center of the transmission groove (206). The cleaning unit (3) is provided on the first transmission link (201) and the second transmission link (202). The cleaning unit (3) includes cleaning shafts (301) that are rotatably provided on the first transmission link (201) and the second transmission link (202), respectively. Both cleaning shafts (301) are slidably provided in the transmission groove (206) and the transmission frame (203). Each cleaning shaft (301) is fixedly provided with a cleaning gear (302). Each cleaning shaft (301) has a cleaning cylinder (305) for cleaning the first light guide arc plate (104) and the second light guide arc plate (111) that can be detachably provided on the outer wall of each cleaning shaft (301).

2. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: The cleaning gear (302) meshes with the transmission gear ring (207) disposed on the transmission bearing plate (208) to drive the cleaning cylinder (305) to rotate.

3. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: The top of the light guide housing (101) is provided with multiple heat dissipation slots, and both side walls of the light guide housing (101) are provided with light guide heat dissipation shells (103), and a heat dissipation motor is provided inside the light guide heat dissipation shells (103).

4. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: The transmission frame (203) is slidably sleeved on the outer wall of the transmission guide post (205). There are two transmission guide posts (205) and they are fixedly installed on the transmission bearing plate (208). Each transmission guide post (205) has a transmission reset spring (204) on its outer wall for resetting the transmission frame (203).

5. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: Multiple cleaning protrusions (303) are fixedly provided on the outer wall of the cleaning shaft (301). The cleaning protrusions (303) are adapted to the inner wall of the cleaning cylinder (305). The cleaning cylinder (305) is fixed on the cleaning shaft (301) by cleaning bolts (304).

6. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: The spacing between adjacent light-guiding heat dissipation fins (105) is 4mm, and the height of the light-guiding heat dissipation fins (105) is 18mm.

7. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to claim 1, characterized in that: The light guide arc plate one (104), the light guide arc plate two (111) and the light guide shell (101) are integrally extruded from high thermal conductivity aluminum alloy profiles and the inner wall is coated with nano-sprayed diffuse reflection texture.

8. The integrated, energy-saving, high-precision machine vision tunnel linear light source according to any one of claims 1 to 7, characterized in that: The outer walls of both the second light guide arc plate (111) and the first light guide arc plate (104) are provided with multiple light guide positioning grooves (106).

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