Terminal position correction device and carousel vision inspection apparatus

Abstract

The application relates to the field of terminal detection, and particularly discloses a terminal position correction device and a rotary disc type visual detection equipment. The terminal position correction device comprises a support, one side of the support is connected with a guide piece, the guide piece is arranged on the upper side of a rotary disc, one end of the guide piece is an inlet end, the other end is an outlet end, the inlet end is close to a material channel, the guide piece is provided with a guide surface, and the distance between the guide surface and the axis line of the rotary disc gradually decreases in the direction from the inlet end to the outlet end. After the terminal enters the rotary disc along the material channel, the terminal is guided by the guide piece, so that the terminal keeps accurate and consistent positions relative to the edge of the rotary disc, and the accuracy of subsequent visual detection is improved.

Description

Technical Field

[0001] This application relates to the field of terminal inspection, and in particular to a terminal position correction device and a rotary visual inspection device. Background Technology

[0002] Terminals are connectors that transmit electrical signals or conduct electricity; they are also called wiring terminals. Terminals are widely used in electrical equipment, and to ensure a high yield rate, each terminal needs to be inspected after production. Visual inspection uses machines to replace human eyes for measurement and judgment, offering a high degree of automation, making it suitable for inspecting terminal quality.

[0003] In related technologies, a common type of visual inspection equipment is the rotary table type. Its inspection process is as follows: the terminal is discharged from the vibratory feeder, moves along the feed channel to the rotary table made of transparent glass, and as the rotary table rotates, it is photographed from each side of the terminal by various image acquisition modules. The image processing module analyzes the acquired photos to determine the quality of the terminal, and finally the terminal is dropped into the feeder.

[0004] The related technology has the following drawbacks: after multiple terminals enter the rotating disk from the feed channel in sequence, it is difficult to maintain the consistency of their positions, and the terminals themselves are small in size, so positional deviations can easily affect the accuracy of visual inspection. Summary of the Invention

[0005] In order to ensure accurate alignment during terminal inspection, this application provides a terminal position correction device and a rotary visual inspection device.

[0006] Firstly, the terminal position correction device provided in this application adopts the following technical solution: A terminal position correction device includes a bracket, a guide member connected to one side of the bracket, the guide member being disposed on the upper side of a rotating disk, one end of the guide member being a feeding end and the other end being a discharging end, the feeding end being close to the material channel, the guide member being provided with a guide surface, the distance between the guide surface and the axis of the rotating disk gradually decreasing along the direction from the feeding end to the discharging end.

[0007] By adopting the above technical solution, after the terminal enters the rotating disk along the material channel, it is guided by the guide component, so that the terminal maintains a precise and consistent position relative to the edge of the rotating disk, thereby improving the accuracy of subsequent visual inspection.

[0008] Specifically, during the terminal guiding process, even if there are slight differences in the state when the material is discharged, it can be adjusted to the target position by being pushed towards the axis of the rotating disk after contacting the guide surface.

[0009] Optionally, the guide includes a fixed base and a guide plate connected to the fixed base, the side of the guide plate near the axis of the rotating disk is the guide surface, and the guide plate is made of polytetrafluoroethylene.

[0010] By adopting the above technical solution, the guide component is divided into two parts. The guide plate, which plays a guiding role, is made of polytetrafluoroethylene, which has the characteristics of low friction coefficient, which can reduce the resistance of the guide component to the terminal and reduce jamming.

[0011] Optionally, the guide plate is connected to a plug and an arc strip at both ends on the side near the fixed seat. The plug is located at the feed end and the arc strip is located at the discharge end. One end of the fixed seat is hinged to a hinge seat for inserting the plug and the other end is provided with a connecting groove for inserting the arc strip. The fixed seat is threaded with a fastening screw that abuts against the arc strip.

[0012] By adopting the above technical solution, on the one hand, the guide plate can rotate relative to the fixed seat, thereby changing the distance between the discharge end and the edge of the rotating disk, and thus adjusting the discharge position of the terminal to suit terminals of different sizes, thus expanding the scope of application; on the other hand, the guide plate can be directly plugged in and unplugged, making it quick to install and remove, and facilitating the replacement of guide plates that are severely worn after long-term use.

[0013] Optionally, the guide plate is arc-shaped.

[0014] By adopting the above technical solutions, the connection with the material channel is smoother and the guiding process is more seamless.

[0015] Optionally, the bracket includes a column, a sliding seat that is slidably connected to the column in a vertical direction, and a connecting strip connected to the sliding seat. The guide is connected to the connecting strip, and the sliding seat is threadedly connected to an adjusting screw that abuts against the column.

[0016] By adopting the above technical solution, the sliding seat can move up and down, thereby adjusting the up and down position of the guide to adapt to terminals of different sizes and keep the guide pushing and guiding the center of the terminal.

[0017] Secondly, the rotary visual inspection device provided in this application adopts the following technical solution: A rotary visual inspection device includes a vibratory feeder, a feed channel, a rotating disk, and a terminal position correction device, wherein the feed channel is disposed between the vibratory feeder and the rotating disk.

[0018] Optionally, it also includes an intermittent discharge device; The intermittent discharge device includes a connecting frame, a trigger plate hinged to the connecting frame, and a first blocking plate for blocking terminals. The trigger plate is disposed at the discharge end, and the lower end of the trigger plate is used to contact the terminals. The first blocking plate is slidably connected vertically to one end of the material channel near the rotating disk. A linkage rope is connected between the upper end of the first blocking plate and the side of the trigger plate near the material channel. A guide shaft connected to the connecting frame is disposed on the upper side of the first blocking plate, and the linkage rope passes around the guide shaft.

[0019] By adopting the above technical solution, after the terminal is guided, the guide member is removed, causing the trigger plate to rotate away from the first blocking plate. The linkage rope then pulls the first blocking plate upward, causing the next terminal to move out of the material channel and into the rotating disk. The intermittent discharge device can realize the intermittent discharge of terminals to match the rhythm of visual inspection.

[0020] Optionally, a second blocking plate is provided on the side of the first blocking plate away from the trigger plate, and a linkage shaft is hinged between the upper ends of the first blocking plate and the second blocking plate, and the middle part of the linkage shaft is rotatably connected to the connecting frame. When the first blocking plate is inserted into the material channel, the second blocking plate is located on the upper side of the material channel; when the second blocking plate is inserted into the material channel, the first blocking plate is located on the upper side of the material channel.

[0021] By adopting the above technical solution, after the first blocking plate moves upward, the second blocking plate blocks the subsequent terminals, ensuring that only one terminal moves out of the material channel. After the guided terminal passes through the trigger plate, the first terminal has moved out of the material channel. At this time, the trigger plate and the first blocking plate reset under the action of gravity, thereby lifting the second blocking plate and allowing the second terminal to enter the discharge position.

[0022] Optionally, the upper end of the trigger plate is rotatably connected to a connecting shaft, the connecting frame is provided with a plurality of connecting holes for inserting the connecting shaft, the plurality of connecting holes are spaced apart along the direction from the trigger plate to the first blocking plate, and the end of the connecting shaft is threadedly connected to a connecting nut that abuts against the connecting frame.

[0023] By adopting the above technical solution, the discharge interval of the terminals can be adjusted by adjusting the position of the trigger piece, thereby increasing the applicability.

[0024] Optionally, a connecting ring is connected to the side of the trigger plate near the first blocking plate, and the end of the linkage rope away from the first blocking plate passes through the connecting ring and is knotted.

[0025] By adopting the above technical solution, depending on the position of the trigger plate, the linkage rope can be kept taut by loosening the knot, tightening it, and then re-tying it.

[0026] In summary, this application has the following beneficial effects: 1. By setting up guide components, the terminals are kept in a precise and consistent position relative to the edge of the rotating disk, thereby improving the accuracy of subsequent visual inspection.

[0027] 2. By setting up an intermittent discharge device, the terminals can be discharged intermittently to match the rhythm of visual inspection. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the rotary visual inspection device according to an embodiment of this application; Figure 2 This is a top view schematic diagram of a portion of the structure of the rotary visual inspection device according to an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the terminal position correction device according to an embodiment of this application; Figure 5 yes Figure 4 Enlarged view of region B in the middle; Figure 6 This is a schematic diagram of the intermittent discharge device according to an embodiment of this application; Figure 7 yes Figure 6 A magnified view of region C in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Vibratory feeder; 2. Feed channel; 3. Rotating disc; 4. Support; 41. Column; 42. Sliding seat; 43. Connecting strip; 44. Adjusting screw; 5. Guide component; 51. Feed end; 52. Discharge end; 53. Fixed seat; 531. Hinge seat; 532. Connecting groove; 54. Guide plate; 541. Guide surface; 542. Insert block; 543. Arc strip; 55. Fastening screw; 6. Intermittent discharge device; 61. Connecting frame; 611. Connecting hole; 62. Trigger plate; 621. Connecting ring; 63. First blocking plate; 64. Linkage rope; 65. Guide shaft; 66. Second blocking plate; 67. Linkage shaft; 68. Connecting shaft; 69. Connecting nut. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] This application discloses a rotary visual inspection device with a terminal position correction device.

[0032] Reference Figure 1The rotary visual inspection equipment includes a machine base, on which are mounted a vibratory feeder 1, a feed channel 2, a rotating disk 3, a terminal position correction device, and an intermittent discharge device 6. The feed channel 2 is located between the vibratory feeder 1 and the rotating disk 3, while the terminal position correction device and the intermittent discharge device 6 are located on one side of the rotating disk 3. First, the terminals are discharged along the vibratory feeder 1 and the feed channel 2 to the outer edge of the upper surface of the rotating disk 3. Under the action of the intermittent discharge device 6, the discharge is intermittent, maintaining a certain interval. Next, the terminal position correction device corrects the position. Finally, after multi-directional visual inspection, qualified products enter the good product area, and unqualified products enter the waste area.

[0033] It should be noted that, except for the terminal position correction device and the intermittent discharge device 6, the structure of the visual inspection equipment of the rotating disk 3 is existing technology and will not be described in detail here. Only the vibratory disk 1, the material channel 2 and the rotating disk 3 are described to more clearly illustrate the structure and function of the terminal position correction device and the intermittent discharge device 6.

[0034] Reference Figure 1 , Figure 2 The terminal position correction device includes a bracket 4 and a guide 5 connected to the bracket 4 on the side facing the rotating disk 3. The guide 5 is located on the upper side of the rotating disk 3, with one end of the guide 5 near the material channel 2 being the feed end 51 and the other end being the discharge end 52. After the terminal moves out of the material channel 2, it enters the rotating disk 3. As the rotating disk 3 rotates, it moves from the feed end 51 to the discharge end 52. The guide 5 can guide the terminal, adjust its position, and ensure the accuracy of subsequent testing.

[0035] Reference Figure 2 , Figure 3 The guide component 5 includes a fixed base 53 fixedly connected to the bracket 4 and a guide plate 54 connected to the fixed base 53 near the axis of the rotating disk 3. The guide plate 54 is made of polytetrafluoroethylene with a low coefficient of friction. The guide plate 54 is arc-shaped, and the side near the axis of the rotating disk 3 is the guide surface 541. The distance between the guide surface 541 and the axis of the rotating disk 3 gradually decreases along the direction from the feed end 51 to the discharge end 52. After the terminal contacts the guide surface 541, it is pushed towards the axis of the rotating disk 3, so that the terminal maintains a precise and consistent position relative to the edge of the rotating disk 3.

[0036] Reference Figure 4 , Figure 5To facilitate the replacement and adjustment of the guide plate 54, a block 542 and an arc-shaped strip 543 are fixedly connected to both ends of the guide plate 54 near the fixed base 53, respectively. The block 542 is located at the feed end 51, and the arc-shaped strip 543 is located at the discharge end 52. One end of the fixed base 53 is hinged to a hinge seat 531 via a hinge shaft, and the other end is provided with a connecting groove 532 for the arc-shaped strip 543 to be inserted. The block 542 is L-shaped, and the hinge seat 531 is U-shaped with its opening facing away from the arc-shaped piece. The block 542 can be inserted into the hinge seat 531 from top to bottom. The axis of the arc-shaped piece is collinear with the axis of the hinge shaft. The connecting groove 532 allows the arc-shaped piece to be inserted from top to bottom and allows the arc-shaped piece to rotate relative to the hinge shaft. The fixed base 53 is threadedly connected to a fastening screw 55 that abuts against the arc-shaped strip 543. After loosening the fastening screw 55, the guide plate can be pulled upwards to remove it for easy replacement. Furthermore, after loosening the fastening screw 55, the guide plate 54 can rotate relative to the fixed base 53, thereby changing the distance between the discharge end 52 and the edge of the rotating disk 3, and thus adjusting the position of the terminal discharge to suit terminals of different sizes.

[0037] Reference Figure 4 The support 4 includes a column 41 fixedly connected to the machine base, a sliding seat 42 slidably connected to the column 41 vertically, and a connecting strip 43 fixedly connected to the sliding seat 42. The connecting strip 43 is U-shaped and fixedly connected to the fixed seat 53. An adjusting screw 44 is threaded onto the side of the sliding seat 42, pressing against the column 41. Tightening the adjusting screw 44 increases the friction between the sliding seat 42 and the column 41, preventing the sliding seat 42 from moving. Loosening the adjusting screw 44 allows the sliding seat 42 to move up and down, thereby adjusting the vertical position of the guide 5.

[0038] Reference Figure 3 , Figure 6 The intermittent discharge device 6 includes a connecting frame 61, a trigger plate 62, a first blocking plate 63, and a second blocking plate 66. The connecting frame 61 is fixedly connected to the column 41. The connecting frame 61 includes an L-shaped frame body, which is fixedly connected to the upper end of the column 41. A horizontally arranged horizontal bar is fixedly connected to the lower end of the frame body. One end of the horizontal bar is hinged to the trigger plate 62, and the other end is connected to a guide shaft 65 and a linkage shaft 67.

[0039] The trigger plate 62 is located at the discharge end 52 and on the side of the guide plate 54 near the axis of the rotating disk 3. There is a gap between the lower end of the trigger plate 62 and the rotating disk 3, and the lower end of the trigger plate 62 can contact the terminal. When the terminal moves out of the discharge end 52 with the rotating disk 3, it can drive the trigger plate 62 to rotate away from the material channel 2; when the terminal is separated from the trigger plate 62, the trigger plate 62 will return to the vertical state under its own gravity.

[0040] Reference Figure 6 , Figure 7The first blocking plate 63 and the second blocking plate 66 are both vertically slidably connected to one end of the feed channel 2 near the rotating disk 3, and are arranged in parallel. The first blocking plate 63 is located on the side of the second blocking plate 66 near the trigger plate 62, and the space between the first blocking plate 63 and the second blocking plate 66 is just enough to accommodate a terminal. A linkage rope 64 is fixedly connected between the upper end of the first blocking plate 63 and the side of the trigger plate 62 near the feed channel 2. A guide shaft 65 is set on the upper side of the first blocking plate 63 and is rotatably connected to the connecting frame 61. The linkage rope 64 passes around the guide shaft 65. After the trigger plate 62 rotates away from the feed channel 2, the linkage rope 64 can pull the first blocking plate 63 upward.

[0041] Reference Figure 6 , Figure 7 A linkage shaft 67 is hinged between the upper ends of the first blocking plate 63 and the second blocking plate 66, and the middle part of the linkage shaft 67 is rotatably connected to the connecting frame 61. As the linkage shaft 67 swings, when the first blocking plate 63 is inserted into the material channel 2, the second blocking plate 66 is located on the upper side of the material channel 2, and when the second blocking plate 66 is inserted into the material channel 2, the first blocking plate 63 is located on the upper side of the material channel 2. After the terminal is guided, the guide member 5 is removed, which drives the trigger plate 62 to rotate away from the first blocking plate 63. The linkage rope 64 then pulls the first blocking plate 63 upward and the second blocking plate 66 downward, so that the next terminal enters the rotating disk 3. The subsequent terminals are blocked by the second blocking plate 66 and cannot be moved out, ensuring that only one terminal is moved out of the material channel 2. After the terminal that has completed the guidance passes through the trigger plate 62, the first terminal has been moved out of the material channel 2. At this time, the trigger plate 62 and the first blocking plate 63 are reset under the action of gravity, which then lifts the second blocking plate 66, so that the second terminal enters the unloading position. The intermittent discharge device 6 can realize the intermittent discharge of terminals to match the rhythm of visual inspection.

[0042] Reference Figure 6 A connecting shaft 68 is rotatably connected to the upper end of the trigger plate 62. The connecting frame 61 is provided with multiple connecting holes 611 into which the connecting shaft 68 is inserted. The connecting shaft 68 is used to realize the rotation of the trigger plate 62 relative to the connecting frame 61. The multiple connecting holes 611 are equally spaced along the direction from the trigger plate 62 to the first blocking plate 63, so that the discharge interval of the terminal can be adjusted. The end of the connecting shaft 68 that passes through the connecting frame 61 is threadedly connected to a connecting nut 69 that abuts against the connecting frame 61. After adjustment, the connecting nut 69 can be tightened.

[0043] Reference Figure 6 A connecting ring 621 is fixedly connected to the side of the trigger plate 62 near the first blocking plate 63. The end of the linkage rope 64 away from the first blocking plate 63 passes through the connecting ring 621 and is knotted. Depending on the position of the trigger plate 62, the linkage rope 64 can be kept taut by loosening the knot, tightening it, and then retiecing it.

[0044] It should be noted that the trigger plate 62, the first blocking plate 63, and the second blocking plate 66 are all made of lightweight materials such as plastic, allowing the terminal to easily push the trigger plate 62 to rotate without affecting the position of the terminal. The first blocking plate 63 is heavier than the second blocking plate 66, so that under normal conditions, when the first blocking plate 63 is inserted into the feed channel 2, the second blocking plate 66 is lifted.

[0045] It should be noted that the second blocking piece 66 shown in the figure is a solid plate and is for illustrative purposes only. In order to allow the second blocking piece 66 to be smoothly inserted between two adjacent terminals, the shape and structure of the second blocking piece 66 can be adapted to the gap between the adjacent terminals.

[0046] The implementation principle of this application embodiment is as follows: First, the terminals are discharged along the vibratory feeder 1 and the feed channel 2 to the outer edge of the upper surface of the rotating disk 3. Under the action of the intermittent discharge device 6, the discharge is intermittent, maintaining a certain interval. Next, during the terminal guidance process, even if there are slight differences in the state during discharge, after contacting the guide surface 541, they are pushed towards the axis of the rotating disk 3, so that the terminals are finally adjusted to a position consistent with and accurate relative to the outer edge of the rotating disk 3. Finally, after multi-directional visual inspection, qualified products enter the good product area, and unqualified products enter the waste area.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A terminal position correction device, comprising a bracket (4), characterized in that: A guide member (5) is connected to one side of the bracket (4). The guide member (5) is located on the upper side of the rotating disk (3). One end of the guide member (5) is the feed end (51) and the other end is the discharge end (52). The feed end (51) is close to the material channel (2). The guide member (5) is provided with a guide surface (541). The distance between the guide surface (541) and the axis of the rotating disk (3) gradually decreases along the direction from the feed end (51) to the discharge end (52). The guide member (5) includes a fixed seat (53) and a guide plate (54) connected to the fixed seat (53). The side of the guide plate (54) close to the axis of the rotating disk (3) is the guide surface (541). The guide plate (54) is made of polytetrafluoroethylene. The guide plate (54) has two ends on the side close to the fixed seat (53). The bracket (4) is connected to a plug (542) and an arc strip (543) respectively. The plug (542) is located at the feed end (51), and the arc strip (543) is located at the discharge end (52). One end of the fixed seat (53) is hinged to a hinge seat (531) for the plug (542) to be inserted, and the other end is provided with a connecting groove (532) for the arc strip (543) to be inserted. The fixed seat (53) is threadedly connected to a fastening screw (55) that abuts against the arc strip (543). The bracket (4) includes a column (41), a sliding seat (42) that is slidably connected to the column (41) in a vertical direction, and a connecting strip (43) that is connected to the sliding seat (42). The guide (5) is connected to the connecting strip (43), and the sliding seat (42) is threadedly connected to an adjusting screw (44) that abuts against the column (41).

2. The terminal position correction device according to claim 1, characterized in that: The guide plate (54) is arc-shaped.

3. A rotary visual inspection device, characterized in that: It includes a vibratory feeder (1), a feed channel (2), a rotating disk (3), and a terminal position correction device as described in any one of claims 1-2, wherein the feed channel (2) is disposed between the vibratory feeder (1) and the rotating disk (3).

4. The rotary visual inspection device according to claim 3, characterized in that: It also includes an intermittent discharge device (6); The intermittent discharge device (6) includes a connecting frame (61), a trigger plate (62) hinged to the connecting frame (61), and a first blocking plate (63) for blocking the terminal. The trigger plate (62) is disposed at the discharge end (52), and the lower end of the trigger plate (62) is used to contact the terminal. The first blocking plate (63) is slidably connected vertically to one end of the material channel (2) near the rotating disk (3). A linkage rope (64) is connected between the upper end of the first blocking plate (63) and the side of the trigger plate (62) near the material channel (2). A guide shaft (65) connected to the connecting frame (61) is disposed on the upper side of the first blocking plate (63), and the linkage rope (64) passes around the guide shaft (65).

5. The rotary visual inspection device according to claim 4, characterized in that: A second blocking plate (66) is provided on the side of the first blocking plate (63) away from the trigger plate (62). A linkage shaft (67) is hinged between the upper ends of the first blocking plate (63) and the second blocking plate (66). The middle part of the linkage shaft (67) is rotatably connected to the connecting frame (61). When the first blocking plate (63) is inserted into the material channel (2), the second blocking plate (66) is located on the upper side of the material channel (2); when the second blocking plate (66) is inserted into the material channel (2), the first blocking plate (63) is located on the upper side of the material channel (2).

6. The rotary visual inspection device according to claim 4, characterized in that: The upper end of the trigger plate (62) is rotatably connected to a connecting shaft (68), and the connecting frame (61) is provided with a plurality of connecting holes (611) into which the connecting shaft (68) is inserted. The plurality of connecting holes (611) are spaced apart along the direction from the trigger plate (62) to the first blocking plate (63). The end of the connecting shaft (68) is threadedly connected to a connecting nut (69) that abuts against the connecting frame (61).

7. The rotary visual inspection device according to claim 6, characterized in that: The trigger plate (62) is connected to a connecting ring (621) on the side near the first blocking plate (63), and the end of the linkage rope (64) away from the first blocking plate (63) passes through the connecting ring (621) and is knotted.

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