A self-adjusting light source

Abstract

This utility model relates to a self-adjusting light source, including a base plate, a vertical pole, a detection platform, a connecting bracket, an electric telescopic rod, a lamp tube, a first connecting arm, and a sensor. The vertical pole is vertically mounted on the base plate, and a movable detection platform is mounted on the base plate. The sensor is mounted on the detection platform. The connecting bracket is detachably connected to the vertical pole. The first connecting arm extends from the side wall of the lamp tube, and the end of the connecting bracket extends and is hinged to the first connecting arm. The electric telescopic rod is mounted on the connecting bracket, and a movable slider is mounted on the first connecting arm. The output end of the electric telescopic rod is hinged to the slider. The sensor is connected to a controller, which controls the extension and retraction of the electric telescopic rod based on the sensor's output value. The extension and retraction direction of the output shaft of the electric telescopic rod is the same as the movement direction of the detection platform. This device is easy to operate, has low maintenance costs, and can meet the requirements for defect detection when light is projected onto the material to be tested at different angles.

Description

Technical Field

[0001] This utility model relates to the field of defect detection, specifically to a self-adjusting light source. Background Technology

[0002] In modern industrial production, sheet materials are a crucial basic material, widely used in packaging, electronics, and many other fields. Their quality directly impacts the performance and safety of downstream products, making accurate detection of surface defects paramount. Traditional manual visual inspection is inefficient, easily affected by subjective factors, and unsuitable for large-scale production needs.

[0003] The adjustable light source for visual measurement disclosed in Chinese Patent Publication No. CN210319614U involves manually rotating a fixed shaft to move it in a first groove. The extension and retraction of an electric telescopic rod causes the light source body to move vertically, thus changing the illumination intensity. The tilting of the light source body is achieved through the cooperation of a first support plate, a second support plate, a lead screw, and a fixing nut, thereby changing the light source angle. This device, in conjunction with an imaging mechanism, can detect defects in the material under test. However, the device has a complex structure, requires manual adjustment of the fixed shaft and other components during actual use, and the meshing of gears and racks is prone to wear over long-term use. The operation is cumbersome, the device has poor adaptability, and the maintenance cost is high. Therefore, this utility model provides a self-adjusting light source. Utility Model Content

[0004] To address the aforementioned issues, a self-adjusting light source is provided. A movable lamp tube is mounted on a vertical rod, and an electric telescopic rod rotates the lamp tube around a pivot angle. A sensor is installed on the testing platform, causing the lamp tube to rotate accordingly based on the movement of the testing platform. This ensures that the lamp tube's illumination light always shines on the testing platform, solving the problem that different materials require different angles of illumination for testing.

[0005] To address the problems of existing technologies, this utility model provides a self-adjusting light source, including a base plate, a vertical pole, a detection platform, a connecting bracket, an electric telescopic rod, a lamp tube, a first connecting arm, and a sensor. The vertical pole is vertically mounted on the base plate, and a movable detection platform is mounted on the base plate. The sensor is mounted on the detection platform. The connecting bracket is detachably connected to the vertical pole. The first connecting arm extends from the side wall of the lamp tube, and the end of the connecting bracket extends and is hinged to the first connecting arm. The electric telescopic rod is mounted on the connecting bracket, and a movable slider is mounted on the first connecting arm. The output end of the electric telescopic rod is hinged to the slider. The sensor is connected to a controller, and the controller controls the extension and retraction of the electric telescopic rod based on the sensor's output value. The extension and retraction direction of the output shaft of the electric telescopic rod is the same as the movement direction of the detection platform.

[0006] Preferably, a guide rail is provided on the base plate, the detection stage is mounted on the guide rail and moves, and the sensor is an array photoelectric sensor.

[0007] Preferably, the connecting bracket includes a connecting plate, two sets of fixing half rings and bolts. The connecting plate is vertically arranged, and the upper end of the connecting plate is hinged to the first connecting arm. The ends of the two fixing half rings are fixed to the connecting plate and arranged around the upright. The bolts can pass through the two fixing half rings to limit the connecting bracket to the upright.

[0008] Preferably, the self-adjusting light source further includes a cover and a movable block. The cover is fitted onto the outer wall of the lamp tube, and the movable block extends from the outer wall of the cover. A first groove is provided on the side of the first connecting arm near the lamp tube, and the movable block is confined in the first groove.

[0009] Preferably, the movable block includes a limiting block, a spring, and two sets of steel balls. The limiting block is confined in the first slide groove, and the limiting block is provided with a limiting through hole in a horizontal direction. The spring and the two steel balls are confined in the limiting through hole, and the two ends of the spring respectively contact the two steel balls, which can contact the first slide groove.

[0010] Preferably, two sets of symmetrical moving blocks extend horizontally from the side wall of the cover, and a second connecting arm extends from the side wall of the lamp tube. A second sliding groove is provided on the side of the second connecting arm near the lamp tube, and the two sets of moving blocks are respectively restricted to moving in the first sliding groove and the second sliding groove.

[0011] Preferably, the self-adjusting light source further includes a filter plate and a filter element. A slot is provided along the lower edge of the cover, the filter plate can be restricted to moving in the slot, a plurality of bearing holes are provided on the filter plate, the filter element is disposed in the bearing holes, and the lower edge of the cover can be aligned with the bearing holes.

[0012] Preferably, the filter is detachably mounted on the carrier hole.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. By setting a sensor on the inspection table, and installing a slider and an electric telescopic rod hinged to the slider on the side of the lamp tube, when the material to be inspected is placed on the inspection table, the sensor outputs a value to the controller based on the amount of light source projected onto the inspection table by moving the inspection table. The controller controls the extension and retraction of the electric telescopic rod, so that the light from the lamp tube is always projected onto the inspection table. This achieves control over the light from different angles to illuminate the material to be inspected on the inspection table. The device has a simple structure, is easy to operate, and has low maintenance costs. It can meet the requirements for defect detection by projecting light from different angles onto the material to be inspected.

[0015] 2. The distance between the lamp and the testing platform can be controlled by adjusting the position of the connecting bracket on the pole, increasing the adaptability of the device.

[0016] 3. A cover is fitted on the outer wall of the lamp tube. The cover can move along the axial direction of the lamp tube to control the diffusion degree and illumination range of the light source. The moving blocks at both ends of the cover can move and be positioned in the first slide groove and the second slide groove to increase the adaptability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a self-adjusting light source according to this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of a self-adjusting light source according to this utility model. Figure 2 .

[0019] Figure 3 yes Figure 2 The node displays a large image.

[0020] Figure 4 This is an exploded view of the connection relationship between the lamp tube, cover, and filter plate of a self-adjusting light source according to this utility model.

[0021] Figure 5 This is a schematic diagram of the connection structure between the cover and the filter plate of a self-adjusting light source according to this utility model.

[0022] Figure 6 This is a cross-sectional view of the cover and moving block of a self-adjusting light source according to this utility model.

[0023] The components in the diagram are labeled as follows: base plate 1, upright pole 10, testing platform 11, guide rail 12, connecting bracket 2, connecting plate 20, fixing half ring 21, bolt 22, electric telescopic rod 3, lamp tube 4, first connecting arm 40, first slide groove 400, second connecting arm 41, second slide groove 410, slider 42, cover 5, slot 50, moving block 6, limit block 60, spring 61, steel ball 62, filter plate 7, filter sheet 8. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1-6As shown, a self-adjusting light source includes a base plate 1, a vertical pole 10, a detection platform 11, a connecting bracket 2, an electric telescopic rod 3, a lamp tube 4, a first connecting arm 40, and a sensor. The vertical pole 10 is vertically mounted on the base plate 1, and the movable detection platform 11 is mounted on the base plate 1. The sensor is mounted on the detection platform 11. The connecting bracket 2 is detachably connected to the vertical pole 10. The first connecting arm 40 extends from the side wall of the lamp tube 4. The end of the connecting bracket 2 extends and is hinged to the first connecting arm 40. The electric telescopic rod 3 is mounted on the connecting bracket 2. A movable slider 42 is mounted on the first connecting arm 40. The output end of the electric telescopic rod 3 is hinged to the slider 42. The sensor is connected to a controller for the electric telescopic rod 3. The controller controls the extension and retraction of the electric telescopic rod 3 according to the output value of the sensor. The extension and retraction direction of the output shaft of the electric telescopic rod 3 is the same as the movement direction of the detection platform 11.

[0026] like Figure 1-3 As shown, the connecting bracket 2 is fixed at a designated position on the upright 10. The material to be tested is placed on the testing platform 11, and the lamp 4 is turned on. The light from the lamp 4 is projected onto the testing platform 11. Moving the testing platform 11 causes the sensor on it to output a value to the controller based on the detected light source quantity. The controller then vertically controls the extension and retraction of the electric telescopic rod 3, ensuring that the light from the lamp 4 always follows the testing platform 11. The detection surface of the testing platform 11 and the illumination from the lamp 4 change as the testing platform 11 moves, thus achieving multi-angle illumination of the material to be tested. It should be noted that this device can be used in conjunction with an imaging mechanism to perform imaging processing on the material to be tested.

[0027] like Figure 1-2 As shown, a guide rail 12 is installed on the base plate 1, and a detection stage 11 is mounted on the guide rail 12 and moves. The sensor is an array-type photoelectric sensor. The array-type photoelectric sensors are evenly distributed on the detection stage 11, and the sensors adjust the angle of the lamp tube 4 according to the coverage of the light.

[0028] like Figure 2 As shown, the connecting bracket 2 includes a connecting plate 20, two sets of fixing half-rings 21, and bolts 22. The connecting plate 20 is vertically arranged, and its upper end is hinged to the first connecting arm 40. The ends of the two fixing half-rings 21 are fixed to the connecting plate 20 and arranged around the upright 10. The bolts 22 can pass through the two fixing half-rings 21 to limit the connecting bracket 2 to the upright 10. Preferably, a scale is provided on the upright 10 so that the position of the two fixing half-rings 21 can be more accurate when fixed to the upright 10.

[0029] like Figure 1-3As shown, the self-adjusting light source also includes a cover 5 and a moving block 6. The cover 5 is fitted onto the outer wall of the lamp tube 4, and the moving block 6 extends from the outer wall of the cover 5. A first sliding groove 400 is provided on the side of the first connecting arm 40 near the lamp tube 4, and the moving block 6 is confined in the first sliding groove 400. The cover 5 is fitted onto the outer wall of the lamp tube 4, and the movement of the cover 5 along the axis of the lamp tube 4 is controlled. The diffusion degree and coverage of the illumination light of the lamp tube 4 are controlled by the movement distance of the cover 5. It should be noted that the lamp head at the lower end of the lamp tube 4 is a hemispherical convex lens structure.

[0030] like Figure 6 As shown, the movable block 6 includes a limiting block 60, a spring 61, and two sets of steel balls 62. The limiting block 60 is confined within the first slide groove 400, and a limiting through hole is horizontally provided in the limiting block 60. The spring 61 and the two steel balls 62 are confined within the limiting through hole, with both ends of the spring 61 contacting the two steel balls 62 respectively. The two steel balls 62 can contact the first slide groove 400. Under the action of no external force, the spring 61 can push the two steel balls 62 partially out of the limiting through hole, causing the steel balls 62 to contact the side wall of the first slide groove 400, thereby limiting the movement position of the cover 5. When the movable block 6 moves up and down, a horizontal pushing force is applied to the movable block 6, causing one of the steel balls 62 to compress the spring 61, and the other steel ball 62 to release contact with the first slide groove 400, thereby realizing the movement of the cover 5.

[0031] Two sets of symmetrical movable blocks 6 extend horizontally from the side wall of the cover 5, and a second connecting arm 41 extends from the side wall of the lamp tube 4. A second sliding groove 410 is provided on the side of the second connecting arm 41 near the lamp tube 4. The two sets of movable blocks 6 are respectively restricted to move within the first sliding groove 400 and the second sliding groove 410. Figure 4 As shown, the cover 5 is stacked with two movable blocks 6, and the lamp tube 4 is provided with a first connecting arm 40 and a second connecting arm 41 on both sides, so that the cover 5 is more stable during the up and down movement.

[0032] The self-adjusting light source also includes a filter plate 7 and a filter element 8. A slot 50 is provided along the lower edge of the housing 5, allowing the filter plate 7 to be retracted within the slot 50. Several mounting holes are provided on the filter plate 7, and the filter element 8 is positioned within these mounting holes. The lower edge of the housing 5 can be aligned with the mounting holes. Figure 4-5 As shown, for materials to be inspected with different defect detection requirements, different wavelengths of light are needed for irradiation and inspection. The movable filter plate 7 on the slot 50 can drive the filter element 8 to block the irradiation port of the lamp tube 4. Preferably, the direction of the movement of the filter plate 7 is perpendicular to the extension and retraction direction of the electric telescopic rod 3, which can prevent the filter plate 7 from sliding directly out of the slot 50 due to its own gravity when the lamp tube 4 is rotating. It should be noted that the diameter of the bearing hole is equal to or greater than the diameter of the lower port of the lamp tube 4.

[0033] The filter element 8 is detachably mounted on the support hole. When the filter element 8 is not in use, it can be removed from the filter plate 7, reducing the weight of the filter plate 7, increasing the stability of the moving block 6 in the groove, and reducing the contamination of the filter element 8 by dust in the air when it is not in use.

[0034] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A self-adjusting light source, characterized in that, The system includes a base plate (1), a vertical pole (10), a testing platform (11), a connecting bracket (2), an electric telescopic pole (3), a lamp tube (4), a first connecting arm (40), and a sensor. The vertical pole (10) is vertically mounted on the base plate (1), and the movable testing platform (11) is mounted on the base plate (1). The sensor is mounted on the testing platform (11). The connecting bracket (2) is detachably connected to the vertical pole (10). The first connecting arm (40) extends from the side wall of the lamp tube (4). The end of the connecting bracket (2) is... The part extends and is hinged to the first connecting arm (40). The electric telescopic rod (3) is set on the connecting bracket (2). The first connecting arm (40) is provided with a movable slider (42). The output end of the electric telescopic rod (3) is hinged to the slider (42). The sensor is connected to the controller of the electric telescopic rod (3). The controller controls the extension and retraction of the electric telescopic rod (3) according to the output value of the sensor. The extension and retraction direction of the output shaft of the electric telescopic rod (3) is the same as the movement direction of the detection table (11).

2. The self-adjusting light source according to claim 1, characterized in that, The base plate (1) is provided with a guide rail (12), the detection stage (11) is mounted on the guide rail (12) and moves, and the sensor is an array photoelectric sensor.

3. The self-adjusting light source according to claim 1, characterized in that, The connecting bracket (2) includes a connecting plate (20), two sets of fixing half rings (21) and bolts (22). The connecting plate (20) is vertically arranged, and the upper end of the connecting plate (20) is hinged to the first connecting arm (40). The ends of the two fixing half rings (21) are fixed on the connecting plate (20) and arranged around the upright (10). The bolts (22) can pass through the two fixing half rings (21) to limit the connecting bracket (2) on the upright (10).

4. A self-adjusting light source according to claim 1, characterized in that, The self-adjusting light source also includes a cover (5) and a moving block (6). The cover (5) is fitted onto the outer wall of the lamp tube (4). The moving block (6) extends from the outer wall of the cover (5). The first connecting arm (40) is provided with a first sliding groove (400) on the side near the lamp tube (4). The moving block (6) is confined in the first sliding groove (400).

5. A self-adjusting light source according to claim 4, characterized in that, The movable block (6) includes a limiting block (60), a spring (61), and two sets of steel balls (62). The limiting block (60) is confined in the first slide groove (400). The limiting block (60) has a horizontal limiting through hole. The spring (61) and the two steel balls (62) are confined in the limiting through hole. The two ends of the spring (61) respectively contact the two steel balls (62), and the two steel balls (62) can contact the first slide groove (400).

6. A self-adjusting light source according to claim 5, characterized in that, Two sets of symmetrical moving blocks (6) extend horizontally from the side wall of the cover (5), and a second connecting arm (41) extends from the side wall of the lamp tube (4). A second sliding groove (410) is provided on the side of the second connecting arm (41) near the lamp tube (4). The two sets of moving blocks (6) are respectively restricted to moving in the first sliding groove (400) and the second sliding groove (410).

7. A self-adjusting light source according to claim 6, characterized in that, The self-adjusting light source also includes a filter plate (7) and a filter sheet (8). The lower edge of the cover (5) is provided with a slot (50). The filter plate (7) can be restricted to being pulled in the slot (50). The filter plate (7) is provided with several bearing holes. The filter sheet (8) is disposed in the bearing holes. The lower edge of the cover (5) can be aligned with the bearing holes.

8. A self-adjusting light source according to claim 7, characterized in that, The filter (8) can be detachably mounted on the bearing hole.

Images