A light source mechanism for a punching machine

Abstract

This invention discloses a light source mechanism for a punching machine, including a frame, an upper mold assembly, a lower mold assembly, an industrial camera, and a light source assembly. Two light source assemblies are respectively disposed on both sides of the upper mold assembly. Each light source assembly includes a track plate, a rotating rod, a first cylinder, a movable plate, and a coaxial light source plate. The two track plates are arranged in parallel, and the rotating rod is rotatably connected between the two track plates. A cylinder mounting seat is provided on the rotating rod, and the first cylinder is mounted on the cylinder mounting seat. An arc-shaped track groove is formed on the track plate, with the initial end of the track groove positioned vertically and the end positioned horizontally. The movable plate is slidably disposed within the track groove and is hinged to the output end of the first cylinder. A coaxial light source plate is provided on the movable plate. This invention can illuminate a narrow space area below the upper mold, and, in conjunction with the industrial camera, inspect the mold surface to achieve automatic visual inspection.

Description

Technical Field

[0001] This invention belongs to the field of flexible circuit board punching equipment, and specifically relates to a light source mechanism for a punching machine. Background Technology

[0002] In the processing of flexible circuit boards, punching is required. After punching and cutting with a punching machine, debris adheres to the mold surface. This debris needs to be cleaned using cleaning equipment. After cleaning, it is also necessary to check for any remaining debris on the mold surface to prevent damage to the next flexible circuit board to be punched during mold closing. Currently, this inspection process is mainly done manually. Because the upper and lower molds of the punching machine are very close together, and the molds close during processing, there is no space between the upper and lower molds to install a light source to assist the industrial camera in inspection, nor is there a suitable location to install an industrial camera to inspect the mold surface. This makes it impossible for the flexible circuit board punching machine's automatic visual inspection function to be implemented. Manual inspection is also prone to missing small debris, resulting in debris adhering to the mold surface and damaging the flexible circuit board during the next mold closing and punching process. Therefore, to avoid the shortcomings of the existing technology, it is necessary to improve it. Summary of the Invention

[0003] The purpose of this invention is to provide a light source mechanism for a punching machine that can illuminate the narrow space below the upper mold, and work with an industrial camera to inspect the mold surface, thereby achieving automatic visual inspection and avoiding the problem of missing debris adhering to the mold surface during manual inspection.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A light source mechanism for a punching machine includes a frame, an upper die assembly, a lower die assembly, an industrial camera, and light source devices. A moving track is provided on the frame. The upper die assembly is vertically and flexibly mounted on the frame. The lower die assembly is slidably mounted on the moving track and can slide away from the area below the upper die assembly along the moving track. An upwardly extending upper die cleaning brush is provided on the lower die assembly. The industrial camera is positioned below the upper die assembly and aligned with its lower surface. Two light source devices are respectively mounted on the upper die assembly. On both sides of the device, the light source includes a track plate, a rotating rod, a first cylinder, a movable plate, and a coaxial light source plate. The two track plates are arranged in parallel. The rotating rod is rotatably connected between the two track plates. A cylinder mounting seat is provided on the rotating rod. The first cylinder is mounted on the cylinder mounting seat. An arc-shaped track groove is formed on the track plate. The initial end of the track groove is set in the vertical direction, and the end of the track groove is set in the horizontal direction. The movable plate is slidably disposed in the track groove. The movable plate is hinged to the output end of the first cylinder. A coaxial light source plate is provided on the movable plate.

[0006] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, a second cylinder is provided on the movable plate. The output end of the second cylinder is connected to the coaxial light source plate. The second cylinder can drive the coaxial light source plate to extend so that the coaxial light source plates on the two light source devices can be spliced ​​together.

[0007] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, the output end of the first cylinder is connected to a hinge block, and the movable plate is hinged to the output end of the first cylinder through the hinge block, enabling the movable plate to rotate around the hinge block.

[0008] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, two cylindrical sliders are respectively provided on both sides of the movable plate, the cylindrical sliders being accommodated in the track groove and capable of sliding along the track groove.

[0009] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, a limit baffle is provided on the outer side of the track plate along the track groove.

[0010] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, the light source device is connected to an electric lead screw, and the frame is provided with lifting guide rails on both sides of the light source device. The light source device is slidably mounted on the lifting guide rails, and the electric lead screw drives the light source device to slide along the lifting guide rails.

[0011] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, the middle section of the track groove between the initial end and the end end is arc-shaped.

[0012] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, there are two second cylinders, which are disposed at both ends of the movable plate, and the two second cylinders synchronously extend and retract to drive the coaxial light source plate to extend and retract.

[0013] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, the upper mold cleaning brush is connected to a lifting screw, and a first debris collection cover is provided on the upper mold cleaning brush.

[0014] As a preferred embodiment of the light source mechanism of the aforementioned punching machine, the industrial camera is capable of penetrating the coaxial light source plate to photograph the lower surface of the upper mold device.

[0015] The light source mechanism of the punching machine provided by this invention has the following advantages compared with the prior art:

[0016] The upper mold device of this invention is vertically and flexibly mounted on the frame, facilitating adjustment of the specific height position of the upper mold for easy mold closing and punching. The lower mold device can slide along the moving track away from the area below the upper mold device, avoiding obstruction of the industrial camera from capturing the lower surface of the upper mold device, and also providing space for the light source device to easily extend the coaxial light source plate into the area below the upper mold device. The lower mold device is equipped with an upwardly extending upper mold cleaning brush, which sweeps across the lower surface of the upper mold device as the lower mold device slides along the moving track, cleaning debris adhering to the mold. The track plate of the light source device has an arc-shaped track groove. The initial end of the groove is vertically oriented, and the end of the track groove is horizontally oriented. The movable plate slides along the track groove, changing from a vertical to a horizontal position. This allows the coaxial light source plate, mounted on the movable plate, to extend horizontally into the lower area of ​​the upper mold device. Two light source devices are respectively positioned on both sides of the upper mold device. This allows the two coaxial light source plates to be joined together to illuminate the entire lower surface of the upper mold device. Furthermore, the joining method of the two coaxial light source plates makes each plate smaller, facilitating its use in the narrow space below the upper mold device. A rotating rod is rotatably connected between the two track plates. The first cylinder is mounted on the rotating rod via a cylinder mounting base and rotates with the rotating plate. The output end of the first cylinder extends to drive the movable plate to slide along the track groove. The first cylinder rotates with the rotating rod to prevent the movable plate from jamming while sliding along the arc-shaped track groove. The movable plate is hinged to the output end of the first cylinder, allowing it to rotate. As the movable plate slides along the arc-shaped track groove, it changes from a vertical to a horizontal position, causing it to rotate relative to the conveying end of the first cylinder. Through this structural design—the first cylinder rotating with the rotating rod and the movable plate rotating around the output end of the first cylinder—the sliding of the movable plate along the arc-shaped track groove from a vertical position is achieved. The function of switching the state to a horizontal state ensures that the coaxial light source plates on the light source device are vertical on both sides of the upper mold device during each punching and mold closing process, without affecting the punching and mold closing process. After the punching is completed, the lower mold device moves away from the area below the upper mold device along the moving track, and the coaxial light source plates extend into the area below the upper mold device to illuminate the narrow space below the upper mold. The two coaxial light source plates are spliced ​​together to cover the entire lower surface of the upper mold device, and the industrial camera is used to take pictures and inspect the lower surface of the upper mold device to realize the automatic visual inspection function and avoid the problem of missing debris adhering to the mold surface during manual inspection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] Figure 1 This is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the light source device and industrial camera of the present invention;

[0020] Figure 3 This is a schematic diagram of the coaxial light source plate of the light source device of the present invention after docking;

[0021] Figure 4 This is a schematic diagram of the movable plate of the light source device of the present invention in a vertical state;

[0022] Figure 5 This is a schematic diagram of the movable plate of the light source device of the present invention in a horizontal state;

[0023] Figure 6 This is a schematic diagram of the lower mold device of the present invention;

[0024] Figure 7 This is a schematic diagram of the upper mold cleaning brush of the present invention.

[0025] Marked in the image:

[0026] 100. Frame; 110. Moving track; 200. Upper mold device; 300. Lower mold device; 310. Upper mold cleaning brush; 320. Lifting screw; 330. First debris collection cover; 400. Light source device; 410. Track plate; 420. Rotating rod; 421. Cylinder mounting base; 430. First cylinder; 440. Track groove; 450. Movable plate; 451. Cylindrical slider; 460. Limiting baffle; 470. Second cylinder; 480. Coaxial light source plate; 500. Electric screw; 510. Lifting guide rail; 600. Industrial camera. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] Please refer to the following: Figures 1 to 7 The light source mechanism of the punching machine provided in the embodiments of the present invention will now be described.

[0032] like Figures 1 to 7 As shown, the light source mechanism of the punching machine of the present invention includes a frame 100, an upper mold device 200, a lower mold device 300, an industrial camera 600, and a light source device 400. A moving track 110 is provided on the frame 100. The upper mold device 200 is vertically and flexibly mounted on the frame 100. The lower mold device 300 is slidably mounted on the moving track 110 and can slide away from the area below the upper mold device 200 along the moving track 110. An upwardly extending upper mold cleaning brush 310 is provided on the lower mold device 300. The industrial camera 600 is located in the area below the upper mold device 200 and aligned with the lower surface of the upper mold device 200. Two light source devices 400 are respectively mounted on the upper mold device 200. On both sides of 0, the light source device 400 includes a track plate 410, a rotating rod 420, a first cylinder 430, a movable plate 450, and a coaxial light source plate 480. The two track plates 410 are arranged in parallel. The rotating rod 420 is rotatably connected between the two track plates 410. A cylinder mounting seat 421 is provided on the rotating rod 420. The first cylinder 430 is mounted on the cylinder mounting seat 421. An arc-shaped track groove 440 is opened on the track plate 410. The initial end of the track groove 440 is set in the vertical direction, and the end of the track groove 440 is set in the horizontal direction. The movable plate 450 is slidably disposed in the track groove 440. The movable plate 450 is hinged to the output end of the first cylinder 430. A coaxial light source plate 480 is provided on the movable plate 450.

[0033] It should be noted that a coaxial light source is a special lighting device used in machine vision systems. Through a special optical design, the light source is made coaxial with the camera lens, providing uniform illumination for industrial inspection of highly reflective surfaces. The industrial camera 600 can photograph the lower surface of the upper mold device 200 through the coaxial light source plate 480. Although the coaxial light source plate 480 is between the upper mold device 200 and the industrial camera 600, it does not obstruct the industrial camera 600 from photographing the upper mold device 200. The coaxial light source is existing technology and will not be described in detail here.

[0034] The first cylinder 430 drives the movable plate 450 to slide along the track groove 440 via telescopic movement. The initial end of the track groove 440 is set vertically, and the end of the track groove 440 is set horizontally. The movement trajectory of the movable plate 450 is not a straight line. Therefore, the first cylinder 430 needs to be mounted on the rotating rod 420 and rotate with the rotating rod 420 to adjust the angle, ensuring that the movable plate 450 does not get stuck when sliding along the track groove 440. The first cylinder 430 extends to drive the movable plate 450 to slide from the initial end to the end of the track groove 440. 50 changes from a vertical to a horizontal state, thus extending into the narrow space below the upper mold device 200. When the lower mold device 300 is about to retract along the moving track 110 to the area below the upper mold device 200, the first cylinder 430 retracts to drive the movable plate 450 to slide from the end of the track groove 440 to the initial end. The movable plate 450 changes from a horizontal to a vertical state and returns from the area below the upper mold device 200 to both sides of the mold device, avoiding affecting the mold closing and punching of the upper mold device 200 and the lower mold device 300.

[0035] like Figures 2-5 As shown, a second cylinder 470 is installed on the movable plate 450. The output end of the second cylinder 470 is connected to the coaxial light source plate 480. The second cylinder 470 can drive the coaxial light source plate 480 to extend, allowing the coaxial light source plates 480 on the two light source devices 400 to be spliced ​​together. After the coaxial light source plates 480 are in a horizontal state, there is still a small gap between the two coaxial light source plates 480. The output end of the second cylinder 470 is connected to the coaxial light source plate 480, and the second cylinder 470 extends to finely adjust the position of the coaxial light source plates 480, so that the two coaxial light source plates 480 contact each other, allowing the two coaxial light source plates 480 to completely cover the lower surface illumination of the mold device 200.

[0036] like Figures 2-5As shown, a hinge block is connected to the output end of the first cylinder 430. The movable plate 450 is hinged to the output end of the first cylinder 430 through the hinge block, allowing the movable plate 450 to rotate around the hinge block. When the movable plate 450 slides along the track groove 440 from a vertical state to a horizontal state, it can rotate relative to the hinge block, realizing the state transition. The smooth transition from a vertical to a horizontal state is achieved by the rotation of the first cylinder 430 with the rotating rod 420 and the rotation of the movable plate 450 around the hinge block, in conjunction with the arc-shaped track groove 440.

[0037] For example, two cylindrical sliders 451 extend outward from each side of the movable plate 450. The cylindrical sliders 451 are housed within the track groove 440 and can slide along the track groove 440. The curved surface of the cylindrical slider 451 contacts the inner wall of the track groove 440, ensuring smooth sliding when turning from the vertical direction at the initial end of the track groove 440 to the horizontal direction at the end. This prevents the rectangular slider from getting stuck when sliding to the arc-shaped section in the middle of the track groove 440. To prevent the cylindrical slider 451 from rotating within the track groove 440 when there is only one, causing the movable plate 450 to remain vertical under gravity, at least two cylindrical sliders 451 are required to prevent them from rotating within the track groove 440, allowing the movable plate 450 to reach a horizontal state when sliding to the end of the track groove 440.

[0038] For example, a limiting baffle 460 is provided on the outer side of the track plate 410 along the track groove 440. The limiting baffle 460 is provided on the outer side of the track plate 410, and the movable plate 450 is on the inner side between the two track plates 410. The limiting baffle 460 can prevent the cylindrical slider 451 on one side from passing through the track groove 440 and causing the cylindrical slider 451 on the other side to detach from the track groove 440. Moreover, the limiting baffle 460 is detachable, which makes it convenient to remove the limiting baffle 460, remove the cylindrical slider 451, and take out the movable plate 450 for inspection and replacement.

[0039] like Figures 2-5 As shown, the light source device 400 is connected to an electric lead screw 500. The frame 100 has lifting guide rails 510 on both sides of the light source device 400. The light source device 400 is slidably mounted on the lifting guide rails 510. The electric lead screw 500 drives the light source device 400 to slide along the lifting guide rails 510. The electric lead screw 500 drives the light source device 400 to rise and fall along the lifting guide rails 510, adjusting the height of the light source device 400 to ensure that the current height allows the coaxial light source plate 480 to extend into the area below the upper mold device 200.

[0040] For example, the middle section of the track groove 440 between its initial and final ends is arc-shaped. The middle section of the track groove 440 transitions through the arc-shaped groove, ensuring that the cylindrical slider 451 can slide smoothly along it to transition the movable plate 450 from a vertical state to a horizontal state.

[0041] For example, there are two second cylinders 470, which are located at both ends of the movable plate 450. The two second cylinders 470 extend and retract synchronously to drive the coaxial light source plate 480 to extend and retract. The synchronous extension and retraction of the second cylinders 470 at both ends of the movable plate 450 ensures that the coaxial light source plate 480 is subjected to balanced forces on both sides during extension and retraction, preventing the coaxial light source plate 480 from tilting or jamming due to uneven forces.

[0042] like Figure 6 , 7 As shown, the upper mold cleaning brush 310 is connected to a lifting screw 320, and a first debris collection cover 330 is provided on the upper mold cleaning brush 310. The first debris collection cover 330 can collect the debris that falls when the upper mold cleaning brush 310 sweeps across the upper mold device 200, and prevent the debris from falling onto the lens of the industrial camera 600 and affecting the photographing and detection of the industrial camera 600.

[0043] For example, the industrial camera 600 can penetrate the coaxial light source plate 480 to photograph the lower surface of the upper mold device 200. After the coaxial light source plate 480 is transformed into a horizontal state, it will be located between the upper mold device 200 and the industrial camera 600. The industrial camera 600 can only complete the photographic inspection by penetrating the coaxial light source plate 480 to photograph the lower surface of the upper mold device 200.

[0044] The light source mechanism of the punching machine provided by this invention has the following advantages compared with the prior art:

[0045] The upper mold device 200 of this invention is vertically and flexibly mounted on the frame 100, facilitating adjustment of the specific height position of the upper mold for easy mold closing and punching. The lower mold device 300 can slide along the moving track 110 away from the area below the upper mold device 200, avoiding obstruction of the industrial camera 600 from photographing the lower surface of the upper mold device 200, and also providing space for the light source device 400, allowing the coaxial light source plate 480 to extend into the area below the upper mold device 200. The lower mold device 300 is provided with an upwardly extending upper mold cleaning brush 310. As the lower mold device 300 slides along the moving track 110, the upper mold cleaning brush 310 sweeps across the lower surface of the upper mold device 200, cleaning debris adhering to the mold. The track of the light source device 400... An arc-shaped track groove 440 is formed on the plate 410. The initial end of the track groove 440 is set in the vertical direction, and the end of the track groove 440 is set in the horizontal direction. The movable plate 450 can slide along the track groove 440 from a vertical state to a horizontal state, so that the coaxial light source plate 480 set on the movable plate 450 extends horizontally into the area below the upper mold device 200. Two light source devices 400 are respectively set on both sides of the upper mold device 200. This allows the two coaxial light source plates 480 to be spliced ​​to achieve illumination covering the entire lower surface of the upper mold device 200. Moreover, by splicing the two coaxial light source plates 480, the volume of each coaxial light source plate 480 is reduced, which is convenient for such narrow areas below the upper mold device 200. In narrow spaces, the rotating rod 420 is rotatably connected between two track plates 410. The first cylinder 430 is mounted on the rotating rod 420 via a cylinder mounting base 421 and rotates with the rotating plate. The output end of the first cylinder 430 extends to drive the movable plate 450 to slide along the track groove 440. The first cylinder 430 rotates with the rotating rod 420 to prevent jamming when the movable plate 450 slides along the arc-shaped track groove 440. The movable plate 450 is hinged to the output end of the first cylinder 430, allowing the movable plate 450 to rotate. As the movable plate 450 slides along the arc-shaped track groove 440, it changes from a vertical to a horizontal position during the movement, causing the movable plate 450 to rotate relative to the conveying end of the first cylinder 430. The structural design of cylinder 430 rotating with rotating rod 420 and movable plate 450 rotating around the output end of first cylinder 430 enables movable plate 450 to slide along arc-shaped track groove 440 from a vertical state to a horizontal state. Thus, during each punching and mold closing, the coaxial light source plate 480 on the light source device 400 is in a vertical state on both sides of the upper mold device 200, without affecting the mold closing and punching process. After the punching is completed and the lower mold device 300 leaves the area below the upper mold device 200 along moving track 110, the coaxial light source plate 480 extends into the area below the upper mold device 200, providing illumination in the narrow space below the upper mold. The two coaxial light source plates 480 are joined together to illuminate the entire lower surface of the upper mold device 200.An auxiliary industrial camera 600 photographs and inspects the lower surface of the upper mold assembly 200, achieving automatic visual inspection and avoiding the problem of missing debris adhering to the mold surface during manual inspection.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A light source mechanism for a punching machine, characterized in that, include: A frame, on which a moving track is provided; An upper mold device, wherein the upper mold device is vertically and flexibly mounted on the frame; The lower mold device is slidably disposed on the moving track and can slide away from the area below the upper mold device along the moving track. The lower mold device is provided with an upwardly extending upper mold cleaning brush. An industrial camera is positioned in the area below the upper mold assembly and is aligned with the lower surface of the upper mold assembly. The light source device comprises two light source devices respectively disposed on both sides of the upper mold device. Each light source device includes a track plate, a rotating rod, a first cylinder, a movable plate, and a coaxial light source plate. The two track plates are arranged in parallel. The rotating rod is rotatably connected between the two track plates. A cylinder mounting seat is provided on the rotating rod. The first cylinder is mounted on the cylinder mounting seat. An arc-shaped track groove is formed on the track plate. The initial end of the track groove is arranged in the vertical direction, and the end of the track groove is arranged in the horizontal direction. The movable plate is slidably disposed in the track groove. The movable plate is hinged to the output end of the first cylinder. A coaxial light source plate is provided on the movable plate.

2. The light source mechanism of the punching machine according to claim 1, characterized in that, A second cylinder is provided on the movable plate. The output end of the second cylinder is connected to the coaxial light source plate. The second cylinder can drive the coaxial light source plate to extend so that the coaxial light source plates on the two light source devices can be spliced ​​together.

3. The light source mechanism of the punching machine according to claim 2, characterized in that, The output end of the first cylinder is connected to a hinge block, and the movable plate is hinged to the output end of the first cylinder through the hinge block, so that the movable plate can rotate around the hinge block.

4. The light source mechanism of the punching machine according to claim 3, characterized in that, Two cylindrical sliders extend outward from both sides of the movable plate. The cylindrical sliders are housed in the track groove and can slide along the track groove.

5. The light source mechanism of the punching machine according to claim 4, characterized in that, A limit baffle is provided on the outer side of the track slab along the track groove.

6. The light source mechanism of the punching machine according to claim 5, characterized in that, The light source device is connected to an electric lead screw, and the frame is provided with lifting guide rails on both sides of the light source device. The light source device is slidably mounted on the lifting guide rails, and the electric lead screw drives the light source device to slide along the lifting guide rails.

7. The light source mechanism of the punching machine according to claim 1, characterized in that, The middle section of the track groove between the initial end and the end end is arc-shaped.

8. The light source mechanism of the punching machine according to any one of claims 2 to 6, characterized in that, There are two second cylinders, which are located at both ends of the movable plate. The two second cylinders synchronously extend and retract to drive the coaxial light source plate to extend and retract.

9. The light source mechanism of the punching machine according to claim 1, characterized in that, The upper mold cleaning brush is connected to a lifting screw, and a first debris collection cover is provided on the upper mold cleaning brush.

10. The light source mechanism of the punching machine according to claim 1, characterized in that, The industrial camera is able to penetrate the coaxial light source plate and photograph the lower surface of the upper mold device.

Images