Device for automatically detecting capacitor terminal

Abstract

The utility model discloses a device for automatically detecting a capacitor terminal, which comprises a mounting rack and a removing mechanism, a mounting frame is arranged at the rear end of the interior of the mounting rack, a guide groove is formed in the rear side wall of the mounting frame, the removing mechanism comprises a mounting column, a sliding column, a movable plate, a sliding groove and a tension spring, the mounting column is slidably connected to the interior of the guide groove, and the movable plate is arranged in the sliding groove. The sliding columns are arranged at the lower end of the outer surface of the mounting column, the movable plates are slidably connected to the outer surfaces of the sliding columns, chucks are arranged at the lower ends of the movable plates, the sliding grooves are formed in the middles of the interiors of the movable plates, tension springs are arranged between the sides, away from the mounting column, of the movable plates and the outer side ends of the sliding columns, and the outer surfaces of the sliding columns are sleeved with the tension springs. According to the equipment for automatically detecting the capacitor terminals, the rejecting mechanism with the CCD visual camera is additionally arranged at the discharging station, whether the capacitor terminals are abnormal or not is detected according to the imaging comparison principle, and abnormal products can be clamped out and automatically arranged in a defective product area.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolytic capacitor detection, in particular to a device for automatically detecting capacitor terminals. Background Art

[0002] Capacitors are components that store electricity and energy. Capacitors play a wide range of roles in circuits, including isolating DC, connecting AC, and preventing low frequencies. They are widely used in coupling, isolating DC, bypassing, filtering, tuning, energy conversion, automatic control, and other fields. Capacitors have a wide range of uses and are indispensable electronic components in the fields of electronics and power. They are mainly used in circuits such as power filtering, signal filtering, signal coupling, resonance, filtering, compensation, charging and discharging, energy storage, and DC isolation. Horn-type aluminum electrolytic capacitors are common capacitors. When producing horn-type aluminum electrolytic capacitors, the finished capacitors need to be tested. In the existing horn-type aluminum electrolytic capacitor production process, the testing machine in the testing process generally tests the internal parameters of the capacitor and measures the short circuit of the aluminum electrolytic capacitor. , uncharged, surge, leakage, ESR, capacity and loss. After the test, the capacitor is directly conveyed to the next process for finished product packaging through a conveyor belt at the discharging station. Since the material of the capacitor terminal is pure copper and the texture is relatively soft, some product terminals will be deformed during the front-end production process. When the traditional horn-type aluminum electrolytic capacitor testing machine is tested, it only tests the internal parameters of the capacitor and lacks external detection of the capacitor. It cannot effectively detect and eliminate unqualified capacitors with deformed terminals, causing some unqualified capacitors with deformed terminals to be classified as qualified products. As a result, the subsequent use end of the capacitor cannot be inserted into the fixed hole of the printed circuit board, causing quality problems. For this reason, we propose a device for automatically detecting capacitor terminals. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a device for automatically detecting capacitor terminals. A rejection mechanism with a CCD visual camera is added at the discharging station, and the imaging contrast principle is used to detect whether the capacitor terminals are abnormal. Abnormal products will be clamped out and automatically discharged into the defective product area, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a device for automatically detecting capacitor terminals, comprising a mounting frame and a rejection mechanism;

[0005] Mounting frame: The rear end of the mounting frame is provided with a mounting frame, and the rear side wall of the mounting frame is provided with a guide groove;

[0006] Rejection mechanism: includes mounting posts, sliding posts, movable plates, slide grooves and tension springs. The mounting posts are slidably connected to the inside of the guide grooves. The sliding posts are arranged at the lower end of the outer surface of the mounting posts. The movable plates are slidably connected to the outer surface of the slide posts. The lower ends of the movable plates are provided with clamps. The slide grooves are opened in the middle of the inner part of the movable plates. Tension springs are provided between the side of the movable plate away from the mounting posts and the outer end of the sliding posts. The tension springs are sleeved on the outer surface of the sliding posts, which can quickly clamp unqualified capacitors. A rejection mechanism with a CCD visual camera is added at the discharging station to detect whether the capacitor terminals are abnormal using the imaging contrast principle. Abnormal products will be clamped out and automatically discharged into the defective product area.

[0007] Furthermore, the rejection mechanism also includes a guide block, which is slidably connected to the lower end of the front side of the installation frame, and the outer surface of the installation column is slidably connected to the inner wall of the guide block, providing guidance and limiting effects for the movement of the installation column.

[0008] Furthermore, the rejection mechanism also includes an adjustable limit assembly, which includes a screw rod, a knob, a slider and a limit block. A limit slot is opened in the middle of the inner front side of the guide block, the screw rod is rotatably connected to the inside of the limit slot, the knob is set at the upper end of the screw rod, the slider is slidably connected to the inside of the limit slot, the outer surface of the screw rod is connected to the inner middle thread of the slider, and a limit block is slidably connected between the two slide grooves through a limit protrusion. The limit blocks are fixedly connected to the slider through the connecting rod on the front side, and the clamping degree can be quickly adjusted according to the size of the capacitor, which is suitable for clamping capacitors of different sizes.

[0009] Furthermore, the rejection mechanism also includes a moving component, which includes a synchronous pulley, a synchronous belt and a mounting block. The synchronous pulleys are all rotatably connected to the inside of the mounting frame. The four synchronous pulleys are all connected through a synchronous belt transmission. The mounting block is arranged in the middle of the upper end of the synchronous belt. The upper end of the outer surface of the mounting column is installed in cooperation with the inner wall of the mounting block, providing a basis for the clamping of unqualified capacitors.

[0010] Furthermore, the moving component also includes a motor, which is arranged on the right side of the rear end of the mounting frame. The input end of the motor is electrically connected to the output end of the microcontroller, and the front end of the output shaft of the motor is fixedly connected to the rear end of the synchronous pulley at the upper right end, providing stable drive for the clamping of unqualified capacitors.

[0011] Furthermore, the rejection mechanism also includes a visual camera, which is arranged in the middle of the inner front side of the mounting frame. The visual camera is bidirectionally electrically connected to the single-chip microcomputer and can quickly use the imaging contrast principle to detect whether the capacitor terminals are qualified.

[0012] Furthermore, it also includes a single-chip microcomputer, which is arranged on the front side of the right end of the mounting frame, and the input end of the single-chip microcomputer is electrically connected to the external power supply to provide a control effect for the detection work of the capacitor terminal.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the device for automatically detecting capacitor terminals has the following advantages:

[0014] The visual camera uses the principle of imaging contrast to detect the outer edge of the capacitor terminal. After finding unqualified capacitors, the single-chip microcomputer controls the motor operation to drive the synchronous belt to rotate. The mounting block and the mounting column move along the motion trajectory of the synchronous belt to achieve the clamping and removal of unqualified capacitors. When the mounting block and the mounting column move vertically, the guide block and the limit block do not move. When the mounting column moves downward, the limit block squeezes the slide, causing the two movable plates and the clamp to move inward synchronously to clamp the unqualified capacitor. After clamping the capacitor, the mounting block and the mounting column move to the right along the motion trajectory of the synchronous belt, and then move up. When the mounting column moves upward, the guide block and the limit block do not move, and the limit block squeezes the slide, causing the two movable plates and the clamp to move outward synchronously, causing the capacitor to lose its clamping effect and be placed in the defective product area. For capacitors with different diameters, the capacitor can be accurately clamped by changing the upper and lower heights of the limit block, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the rejection mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the rejection mechanism of the utility model.

[0018] In the figure: 1 mounting frame, 2 mounting frame, 3 guide groove, 4 rejection mechanism, 41 mounting column, 42 sliding column, 43 movable plate, 44 sliding groove, 45 tension spring, 46 guide block, 47 adjustable limit assembly, 471 screw rod, 472 knob, 473 slider, 474 limit block, 48 moving assembly, 481 synchronous pulley, 482 synchronous belt, 483 mounting block, 484 motor, 49 visual camera, 5 single-chip computer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , this embodiment provides a technical solution: a device for automatically detecting capacitor terminals, comprising a mounting frame 1 and a rejection mechanism 4;

[0021] Mounting frame 1: The rear end of the mounting frame 1 is provided with a mounting frame 2, the rear side wall of which is provided with a guide slot 3. The mounting frame 2 also includes a single-chip microcomputer 5, which is arranged on the front right end of the mounting frame 1. The input end of the single-chip microcomputer 5 is electrically connected to an external power supply to provide a control effect for the detection of the capacitor terminals.

[0022] The rejection mechanism 4 includes a mounting post 41, a sliding post 42, a movable plate 43, a slide groove 44 and a tension spring 45. The mounting post 41 is slidably connected to the inside of the guide groove 3. The mounting post 41 moves along the trajectory of the guide groove 3. The sliding posts 42 are all arranged at the lower end of the outer surface of the mounting post 41. The movable plates 43 are slidably connected to the outer surface of the sliding post 42. The lower end of the movable plate 43 is provided with a clamp. The slide grooves 44 are all opened in the middle of the inner part of the movable plate 43. A tension spring 45 is provided between the side of the movable plate 43 away from the mounting post 41 and the outer end of the sliding post 42. The tension spring 45 is sleeved on the outer surface of the sliding post 42. The tension spring 45 can make the movement of the movable plate 43 more stable, and can quickly clamp unqualified capacitors. The rejection mechanism 4 also The guide block 46 is slidably connected to the lower end of the front side of the mounting frame 2, and the outer surface of the mounting column 41 is slidably connected to the inner wall of the guide block 46 to provide a guide and limiting effect for the movement of the mounting column 41. The rejection mechanism 4 also includes an adjustable limiting component 47, which includes a screw rod 471, a knob 472, a slider 473 and a limiting block 474. A limiting groove is provided in the middle of the inner front side of the guide block 46, the screw rod 471 is rotatably connected to the inside of the limiting groove, the knob 472 is set at the upper end of the screw rod 471, the slider 473 is slidably connected to the inside of the limiting groove, the outer surface of the screw rod 471 is threadedly connected to the inner middle of the slider 473, and the two slides 44 are slidably connected by a limiting protrusion. There is a limit block 474, which is fixedly connected to the slider 473 through the connecting rod on the front side. The clamping degree can be quickly adjusted according to the size of the capacitor, and is suitable for clamping capacitors of different sizes. The rejection mechanism 4 also includes a moving component 48, which includes a synchronous pulley 481, a synchronous belt 482 and a mounting block 483. The synchronous pulley 481 is rotatably connected to the inside of the mounting frame 2. The four synchronous pulleys 481 are all connected by the synchronous belt 482. The mounting block 483 is arranged in the middle of the upper end of the synchronous belt 482. The upper end of the outer surface of the mounting column 41 is installed in conjunction with the inner wall of the mounting block 483 to provide a basis for the clamping of unqualified capacitors. The moving component 48 also includes an electric Machine 484, the motor 484 is arranged on the right side of the rear end of the installation frame 2, the input end of the motor 484 is electrically connected to the output end of the single-chip microcomputer 5, and the front end of the output shaft of the motor 484 is fixedly connected to the rear end of the synchronous pulley 481 at the upper right end, providing stable drive for the clamping of unqualified capacitors, and the rejection mechanism 4 also includes a visual camera 49, which is arranged in the middle of the inner front side of the installation frame 1. The visual camera 49 is bidirectionally electrically connected to the single-chip microcomputer 5, and can quickly use the imaging contrast principle to detect whether the capacitor terminals are qualified. A rejection mechanism with a CCD visual camera is added at the discharging station, and the imaging contrast principle is used to detect whether the capacitor terminals are abnormal. Abnormal products will be clamped out and automatically discharged into the defective product area.

[0023] The working principle of the device for automatically detecting capacitor terminals provided by the present invention is as follows: when detecting the capacitor terminals of the horn-type aluminum electrolytic capacitor, the mounting frame 1 is fixed to the conveyor belt of the discharging station. After the capacitor undergoes a series of internal parameter tests, the conveyor belt carries the capacitor through the bottom of the visual camera 49. The single-chip microcomputer 5 controls the operation of the visual camera 49. The visual camera 49 uses the imaging comparison principle to detect the outer edge of the capacitor terminal. The qualified capacitors continue to be sent to the subsequent packaging process through the conveyor belt. After the unqualified capacitors with deformed terminal outer edges are found after comparison, the visual camera 49 sends an electrical signal to the single-chip microcomputer 5. The single-chip microcomputer 5 controls the operation of the motor 484. The output shaft of the motor 484 drives the synchronous pulley 481 at the upper right end to rotate. Drive the synchronous belt 482 to rotate along the four synchronous pulleys 481, and the mounting block 483 also moves to the left, driving the mounting column 41 to move left synchronously, and the guide block 46 also moves left. The guide block 46 can keep the mounting column 41 in a vertical state when moving. When the mounting block 483 moves to the synchronous pulley 481 on the upper left side, the mounting block 483 moves down along the movement trajectory of the synchronous belt 482, and the guide block 46 remains stationary. The mounting column 41 moves down. As the mounting column 41 moves down, the sliding column 42 also moves down, and the movable plate 43 also moves down synchronously. At this time, the guide block 46 does not move, and the limit block 474 does not move either. The movable plate 43 moves downward. As the movable plate 43 moves downward, the limit block 474 continuously presses the slide groove 44 through the limit protrusion, so that the movable plate As the mounting block 483 moves downward and inward, the chuck also moves inward synchronously, the tension spring 45 is expanded by force, and the tension spring 45 makes the lateral movement of the movable plate 43 smoother through its own elastic deformation. When the mounting block 483 moves to the synchronous pulley 481 at the lower left side, the mounting block 483 moves right along the movement trajectory of the synchronous belt 482, driving the mounting column 41 to move right, and the guide block 46 and the limit block 474 also move right synchronously. At this time, the two chucks just clamp the unqualified capacitors. As the mounting column 41 moves to the right, the unqualified capacitors are also taken away from the conveyor belt. Until the mounting block 483 moves to the synchronous pulley 481 at the lower right side, the mounting block 483 moves upward along the movement trajectory of the synchronous belt 482, driving the mounting column 41 to move upward, and the guide block 46 and the limit block 474 The block 474 does not move, the mounting post 41 moves the movable plate 43 upward, and the limit block 474 again continuously presses the slide 44 through the limit protrusion, so that the movable plate 43 moves downward and outward at the same time, and the clamp also moves outward synchronously, the tension spring 45 contracts, the capacitor loses its clamping effect and is placed in the defective area, completing the removal of unqualified capacitors. For capacitors with different diameters, the clamping degree of the clamp is also different. To ensure the stability of the clamping, the clamping degree of the clamp can be changed by changing the height of the limit block 474. When the diameter of the capacitor is too small, the reverse knob 472 is turned, the screw rod 471 also rotates synchronously, driving the slider 473 to move upward, and the limit block 474 also moves upward synchronously. When the limit block 474 squeezes the slide 44 through the limit protrusion,The movable plate 43 has a longer inward movement stroke, which is suitable for clamping capacitors with too small diameters. When the capacitor diameter is too large, the knob 472 is turned forward, and the screw rod 471 also rotates synchronously, driving the slider 473 downward and the limit block 474 also moves downward synchronously. When the limit block 474 squeezes the slide 44 through the limit protrusion, the movable plate 43 has a shorter inward movement stroke, which is suitable for clamping capacitors with too large diameters, which is very convenient.

[0024] It is worth noting that the microcontroller 5 disclosed in the above embodiment is an N32G430C8L7 microcontroller, the motor 484 is a YY90-220-120NAC motor, the visual camera 49 is an EV76C560 visual camera, and the microcontroller 5 controls the motor 484 and the visual camera 49 using methods commonly used in the prior art.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for automatically detecting capacitor terminals, characterized by: It includes a mounting frame (1) and a rejection mechanism (4); Mounting frame (1): a mounting frame (2) is provided at the rear end thereof, and a guide groove (3) is provided on the rear side wall of the mounting frame (2); The rejection mechanism (4) comprises a mounting column (41), a sliding column (42), a movable plate (43), a slide groove (44) and a tension spring (45), wherein the mounting column (41) is slidably connected to the inside of the guide groove (3), the sliding columns (42) are all arranged at the lower end of the outer surface of the mounting column (41), the movable plates (43) are all slidably connected to the outer surface of the sliding column (42), the lower end of the movable plate (43) is provided with a clamp, the slide groove (44) is opened in the middle of the inner part of the movable plate (43), and a tension spring (45) is provided between the side of the movable plate (43) away from the mounting column (41) and the outer end of the sliding column (42), and the tension spring (45) is sleeved on the outer surface of the sliding column (42).

2. The device for automatically detecting capacitor terminals according to claim 1, characterized in that: It also includes a single-chip microcomputer (5), which is arranged on the front side of the right end of the mounting frame (1), and the input end of the single-chip microcomputer (5) is electrically connected to an external power supply.

3. The device for automatically detecting capacitor terminals according to claim 1, characterized in that: The rejection mechanism (4) further comprises a guide block (46), wherein the guide block (46) is slidably connected to the front lower end of the mounting frame (2), and the outer surface of the mounting column (41) is slidably connected to the inner wall of the guide block (46).

4. The device for automatically detecting capacitor terminals according to claim 3, characterized in that: The rejecting mechanism (4) further includes an adjustable limit assembly (47), which includes a screw rod (471), a knob (472), a slider (473) and a limit block (474). A limit slot is provided in the middle of the inner front side of the guide block (46). The screw rod (471) is rotatably connected to the inner part of the limit slot. The knob (472) is provided at the upper end of the screw rod (471). The slider (473) is slidably connected to the inner part of the limit slot. The outer surface of the screw rod (471) is connected to the inner middle thread of the slider (473). A limit block (474) is slidably connected between the two slides (44) via a limit protrusion. The limit blocks (474) are fixedly connected to the slider (473) via a connecting rod on the front side.

5. The device for automatically detecting capacitor terminals according to claim 2, characterized in that: The rejection mechanism (4) further comprises a moving assembly (48), the moving assembly (48) comprising a synchronous pulley (481), a synchronous belt (482) and a mounting block (483), the synchronous pulleys (481) being rotatably connected to the interior of the mounting frame (2), the four synchronous pulleys (481) being connected by transmission via the synchronous belt (482), the mounting block (483) being arranged at the middle portion of the upper end of the synchronous belt (482), and the upper end of the outer surface of the mounting column (41) being mounted in cooperation with the inner wall of the mounting block (483).

6. The device for automatically detecting capacitor terminals according to claim 5, characterized in that: The moving assembly (48) further comprises a motor (484), which is arranged on the right side of the rear end of the mounting frame (2), the input end of the motor (484) being electrically connected to the output end of the single-chip microcomputer (5), and the front end of the output shaft of the motor (484) being fixedly connected to the rear end of the synchronous pulley (481) at the upper right end.

7. The device for automatically detecting capacitor terminals according to claim 6, characterized in that: The rejection mechanism (4) further includes a visual camera (49), which is arranged in the middle of the inner front side of the mounting frame (1), and the visual camera (49) is bidirectionally electrically connected to the single-chip microcomputer (5).

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