Visual inspection device for dimension measurement of electronic component

Abstract

The utility model discloses an electronic component dimension measurement visual inspection device, which relates to the technical field of electronic components and comprises a first conveying frame and a second conveying frame, and a first conveying belt and a second conveying belt are mounted in the first conveying frame and the second conveying frame respectively. Visual detection heads are mounted in the middles of the top surfaces of the first conveying frame and the second conveying frame, a turn-over mechanism is arranged between the first conveying frame and the second conveying frame, a driving mechanism is mounted on the side wall of the first conveying frame, and the driving mechanism is connected with a rotating shaft of the first conveying belt and the turn-over mechanism; a discharging mechanism is mounted at the top of the end, away from the driving mechanism, of the first conveying frame. The driving mechanism drives the first conveying belt and the turn-over mechanism in a linkage mode, the first conveying belt distributes circuit boards discharged by the discharging mechanism one by one, the size of one face is detected through the visual detection head, then the turn-over mechanism turns over the circuit boards to the second conveying belt and moves to the other visual detection head for detection, automatic double-face detection is achieved, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic components, in particular to a visual detection device for measuring the size of electronic components. Background Art

[0002] The circuit board is a very important electronic component that makes the circuit miniaturized and intuitive. It plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. After the circuit is printed on the circuit board, its size needs to be inspected, especially its length, width, and the distribution and size of the printed circuit on the surface. Currently, visual inspection is often used for inspection.

[0003] The current visual inspection device requires manual labor to pick up circuit boards one by one and place them at the bottom of the visual inspection head. During inspection, the circuit boards need to be placed in the visual area facing the inspection head to facilitate inspection. Double-sided circuit boards also need to be turned over to inspect the other side. Each replacement and flipping requires manual work, which is inefficient and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the visual inspection device in the prior art, that is, the circuit boards need to be manually taken one by one and placed at the bottom of the visual inspection head; during inspection, the circuit boards need to be placed in the visual area facing the inspection head for easy inspection; and the double-sided circuit boards need to be turned over to inspect the other side; each replacement and turning over requires manual work, which is inefficient and labor-intensive; and a visual inspection device for measuring the size of electronic components is proposed.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] A visual inspection device for measuring the size of electronic components comprises a first conveyor frame and a second conveyor frame, wherein a first conveyor belt and a second conveyor belt are respectively installed in the first conveyor frame and the second conveyor frame, a visual inspection head is installed in the middle of the top surface of the first conveyor frame and the second conveyor frame, a turning mechanism is provided between the first conveyor frame and the second conveyor frame, a driving mechanism is installed on the side wall of the first conveyor frame, and the driving mechanism is connected to the rotating shaft of the first conveyor belt and the turning mechanism, and a material discharge mechanism is installed on the top of one end of the first conveyor frame away from the driving mechanism.

[0007] Preferably, the discharge mechanism includes a storage cylinder, a storage cylinder is provided on the top of the first conveyor frame, the bottom surface of the storage cylinder is tightly fitted to the top of the first conveyor belt, and fixed plates are fixedly installed on both sides of the storage cylinder, and the fixed plates are connected to the top surface of the first conveyor frame by bolts, and a discharge port is opened at the bottom of the storage cylinder on one side close to the visual inspection head.

[0008] Preferably, the inner cavity length and width of the storage cylinder are respectively equal to the length and width of the circuit board, the height of the discharge port is greater than the thickness of one circuit board and less than the sum of the thicknesses of two circuit boards, and the friction coefficient between the first conveyor belt and the circuit board is greater than the friction coefficient between the circuit boards.

[0009] Preferably, the flipping mechanism includes an intermediate frame, which is arranged between the first conveying frame and the second conveying frame, a driven shaft is rotatably sleeved on the top of the intermediate frame, a rotating drum is fixedly sleeved on the middle of the driven shaft, a plurality of temporary storage boxes are fixedly mounted on the circumferential outer wall of the rotating drum, a chute is fixedly mounted on the end of the first conveying frame, the top of the chute is in contact with the end of the first conveyor belt, and the bottom of the chute is movably in contact with the open end of the temporary storage box.

[0010] Preferably, one end of the driven shaft passes through the intermediate frame and is connected to the driving mechanism through a transmission belt and a transmission wheel. There are three temporary storage boxes evenly distributed along the circumferential direction of the rotating drum. The inner cavity depth of the temporary storage box is equal to half the length of the circuit board. The friction coefficient between the second conveyor belt and the circuit board is greater than the friction coefficient between the circuit board and the inner wall of the temporary storage box.

[0011] Preferably, the driving mechanism includes a fixed seat, a fixed seat is fixedly installed on the outer wall of the first conveyor frame, a motor is fixedly installed on the fixed seat, a driving wheel is fixedly sleeved on the output shaft of the motor, a transmission shaft is rotatably sleeved on the outer wall of the first conveyor frame at the bottom of the fixed seat, a driven wheel is fixedly sleeved on the transmission shaft and a rotating shaft of the first conveyor belt, a plurality of stop grooves are provided on the driven wheel, a push groove is provided on the driven wheel between two adjacent stop grooves, a rotating groove is provided on the driving wheel, a push rod is installed on the end face of the driving wheel in the middle of the rotating groove through a connecting rod, the push rod is movably engaged with the push groove, and one end of the transmission shaft is connected to the driven shaft through a transmission wheel and a transmission belt.

[0012] Preferably, the retaining groove is an arc-shaped structure matched with the circumferential outer wall of the driving wheel, the diameter of the push rod is equal to the inner cavity width of the push groove, and the two driven wheels are symmetrically distributed on the top and bottom of the driving wheel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the present invention, a large number of circuit boards are stacked in the inner cavity of the storage cylinder. When the first conveyor belt rotates, the circuit board at the bottom is moved out through the discharge port, thereby realizing automatic discharge one by one, which is convenient for one-by-one detection without replacing components one by one;

[0015] 2. In the utility model, the driving mechanism realizes the alternating rotation of the first conveyor belt and the driven shaft. After each circuit board is inspected and moved out from the first conveyor belt, the first conveyor belt stops, and the circuit board falls into the temporary storage box through the chute. Then the rotating drum rotates so that the temporary storage box containing the circuit board moves to the end of the second conveyor belt and stops. At this time, the protruding end of the circuit board is attached to the second conveyor belt to achieve flipping. The second conveyor belt carries the circuit board out of the temporary storage box and is inspected by the next visual inspection head, and another empty temporary storage box is moved to the bottom of the chute for the next circuit board to be received. The cycle is carried out to realize that each circuit board is inspected on one side and then turned over to the second conveyor belt for inspection on the other side, thereby achieving the purpose of automatic inspection, improving efficiency, and reducing manual labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a visual inspection device for measuring the size of electronic components of the utility model;

[0018] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 For the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0020] Figure 4 For the utility model Figure 1 Enlarged structural diagram at point C in the middle.

[0021] Serial numbers in the figure: 1. first conveyor frame; 2. second conveyor frame; 3. first conveyor belt; 4. second conveyor belt; 5. visual inspection head; 6. unloading mechanism; 61. storage cylinder; 62. fixing plate; 63. discharge port; 7. flipping mechanism; 71. intermediate frame; 72. driven shaft; 73. rotating cylinder; 74. temporary storage box; 75. chute; 8. driving mechanism; 81. fixed seat; 82. motor; 83. driving wheel; 84. transmission shaft; 85. driven wheel; 86. stop groove; 87. push groove; 88. rotating groove; 89. push rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Embodiment: This embodiment provides a visual inspection device for measuring the size of electronic components. Figure 1-4 Specifically, it includes a first conveyor frame 1 and a second conveyor frame 2, in which a first conveyor belt 3 and a second conveyor belt 4 are respectively installed, a visual inspection head 5 is installed in the middle of the top surface of the first conveyor frame 1 and the second conveyor frame 2, a turning mechanism 7 is arranged between the first conveyor frame 1 and the second conveyor frame 2, a driving mechanism 8 is installed on the side wall of the first conveyor frame 1, and the driving mechanism 8 is connected to the rotating shaft of the first conveyor belt 3 and the turning mechanism 7, a discharge mechanism 6 is installed on the top of one end of the first conveyor frame 1 away from the driving mechanism 8, and a large number of circuit boards are stored in the discharge mechanism 6, and the driving mechanism 8 drives the first conveyor belt 3 and the turning mechanism 7 in linkage, so that the first conveyor belt 3 and the turning mechanism 7 operate alternately, and the first conveyor belt 3 distributes the circuit boards discharged by the discharge mechanism 6 one by one, and the visual inspection head 5 detects the size of one side, and then the circuit boards are turned over by the turning mechanism 7 to the second conveyor belt 4 and moved to another visual inspection head 5 for inspection, so as to realize automatic double-sided inspection, without the need for repeated manual replacement and turning, thereby improving efficiency.

[0024] Reference Figure 1 and Figure 2 The discharge mechanism 6 includes a storage cylinder 61. A storage cylinder 61 is provided on the top of the first conveyor frame 1. The bottom surface of the storage cylinder 61 is tightly fitted to the top of the first conveyor belt 3. Fixed plates 62 are fixedly installed on both sides of the storage cylinder 61. The fixed plates 62 are connected to the top surface of the first conveyor frame 1 by bolts. A discharge port 63 is opened at the bottom of the storage cylinder 61 on one side close to the visual inspection head 5. The length and width of the inner cavity of the storage cylinder 61 are respectively equal to the length and width of the circuit board. The height of the discharge port 63 is greater than the thickness of one circuit board and less than the sum of the thicknesses of two circuit boards. The friction coefficient between the first conveyor belt 3 and the circuit board is greater than the friction coefficient between the circuit boards. A large number of circuit boards are stacked in the inner cavity of the storage cylinder 61. When the first conveyor belt 3 rotates, the circuit board at the bottom is moved out through the discharge port 63, thereby realizing automatic one-by-one discharge, which is convenient for one-by-one inspection.

[0025] Reference Figure 1 and Figure 3The flipping mechanism 7 includes an intermediate frame 71, an intermediate frame 71 is provided between the first conveying frame 1 and the second conveying frame 2, a driven shaft 72 is rotatably sleeved at the top of the intermediate frame 71, a rotating drum 73 is fixedly sleeved at the middle of the driven shaft 72, a plurality of temporary storage boxes 74 are fixedly installed on the circumferential outer wall of the rotating drum 73, a chute 75 is fixedly installed at the end of the first conveying frame 1, the top of the chute 75 fits the end of the first conveyor belt 3, and the bottom of the chute 75 movably fits the open end of the temporary storage box 74, one end of the driven shaft 72 passes through the intermediate frame 71 and is connected to the driving mechanism 8 through a transmission belt and a transmission wheel, and three temporary storage boxes 74 are evenly distributed along the circumferential direction of the rotating drum 73, and the inner cavity depth of the temporary storage box 74 is equal to the length of the circuit board. Half, the friction coefficient between the second conveyor belt 4 and the circuit board is greater than the friction coefficient between the circuit board and the inner wall of the temporary storage box 74, and the driving mechanism 8 makes the first conveyor belt 3 and the driven shaft 72 rotate alternately. After each circuit board is detected and moved out from the first conveyor belt 3, the first conveyor belt 3 stops, and the circuit board falls into the temporary storage box 74 through the chute 75. Then the rotating drum 73 rotates to make the temporary storage box 74 containing the circuit board move to the end of the second conveyor belt 4 and stop. At this time, the protruding end of the circuit board is attached to the second conveyor belt 4 to achieve flipping. The second conveyor belt 4 carries the circuit board out of the temporary storage box 74 and is inspected by the next visual inspection head 5, and another empty temporary storage box 74 moves to the bottom of the chute 75 to facilitate the next circuit board to be taken.

[0026] Reference Figure 1 and Figure 4The driving mechanism 8 includes a fixed seat 81, a fixed seat 81 is fixedly installed on the outer wall of the first conveyor frame 1, a motor 82 is fixedly installed on the fixed seat 81, a driving wheel 83 is fixedly sleeved on the output shaft of the motor 82, a transmission shaft 84 is rotatably sleeved on the outer wall of the first conveyor frame 1 at the bottom of the fixed seat 81, a driven wheel 85 is fixedly sleeved on the transmission shaft 84 and a rotating shaft of the first conveyor belt 3, a plurality of stop grooves 86 are opened on the driven wheel 85, a push groove 87 is opened on the driven wheel 85 between two adjacent stop grooves 86, a rotating groove 88 is opened on the driving wheel 83, a push rod 89 is installed on the end surface of the driving wheel 83 in the middle of the rotating groove 88 through a connecting rod, and the push rod 89 is movably engaged with the push groove 87, one end of the transmission shaft 84 is connected to the driven shaft 72 through a transmission wheel and a transmission belt, the stop groove 86 is an arc structure adapted to the outer wall of the circumference of the driving wheel 83, and the push rod 89 is movably engaged with the push groove 87. The diameter of the rod 89 is equal to the inner cavity width of the push groove 87. The two driven wheels 85 are symmetrically distributed at the top and bottom of the driving wheel 83. The motor 82 drives the driving wheel 83 to rotate continuously. When the rotating groove 88 is close to one driven wheel 85, the push rod 89 slides into the pushing groove 87. At this time, the push rod 89 can push the driven wheel 85 to rotate. The rotating groove 88 provides space for the driven wheel 85 to rotate, and the stop groove 86 on the other driven wheel 85 fits the circumferential outer wall of the driving wheel 83 to achieve stopping. When the push rod 89 slides out of the pushing groove 87, the rotating groove 88 is away from the driven wheel 85, and the circumferential outer wall of the driving wheel 83 is stuck in the stop groove 86 to achieve the stopping of the driven wheel 85. In this way, the driving wheel 83 rotates continuously to achieve the alternating rotation of the two driven wheels 85, so that the first conveyor belt 3 and the driven shaft 72 achieve alternating rotation, thereby achieving the alternating operation of the first conveyor belt 3 and the turning mechanism 7.

[0027] Furthermore, both visual inspection heads 5 are connected to an alarm and a power source, so that non-compliant components are detected, an alarm is sounded and the device is paused, so that personnel can come and take down the defective products and start the device to continue operation.

[0028] Specifically, the working principle and operation method of the utility model are as follows: a large number of circuit boards are stacked in the inner cavity of the storage tube 61. When the first conveyor belt 3 rotates, the circuit board at the bottom is moved out through the discharge port 63, thereby realizing automatic one-by-one discharge, which is convenient for one-by-one detection. The motor 82 drives the driving wheel 83 to rotate continuously. When the rotating groove 88 is close to a driven wheel 85, the push rod 89 slides into the pushing groove 87. At this time, the push rod 89 can push the driven wheel 85 to rotate. The rotating groove 88 provides space for the driven wheel 85 to rotate, and the stopping groove 86 on the other driven wheel 85 fits the circumferential outer wall of the driving wheel 83 to achieve stopping. When the push rod 89 slides out of the pushing groove 87, the rotating groove 88 is away from the driven wheel 85, and the circumferential outer wall of the driving wheel 83 is stuck in the stopping groove 86 to achieve the stopping of the driven wheel 85. In this way, the driving wheel 83 rotates continuously. The first conveyor belt 3 and the driven shaft 72 rotate alternately, and each circuit board is moved out from the first conveyor belt 3 after detection, and the first conveyor belt 3 stops, and the circuit board falls into the temporary storage box 74 through the chute 75. Then the rotating drum 73 rotates to move the temporary storage box 74 containing the circuit board to the end of the second conveyor belt 4 and stops. At this time, the protruding end of the circuit board is attached to the second conveyor belt 4 to achieve turning over. The second conveyor belt 4 carries the circuit board out of the temporary storage box 74 and is inspected by the next visual inspection head 5, and another empty temporary storage box is moved to the bottom of the chute 75 for the next circuit board to be taken. The cycle is carried out to realize that each circuit board is inspected on one side and then turned over to the second conveyor belt 4 for inspection on the other side, thereby achieving the purpose of automatic inspection, improving efficiency and reducing labor intensity.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A visual inspection device for measuring the size of electronic components, comprising a first conveyor frame (1) and a second conveyor frame (2), characterized in that: A first conveyor belt (3) and a second conveyor belt (4) are respectively installed in the first conveyor frame (1) and the second conveyor frame (2); a visual inspection head (5) is installed in the middle of the top surface of each of the first conveyor frame (1) and the second conveyor frame (2); a turning mechanism (7) is provided between the first conveyor frame (1) and the second conveyor frame (2); a driving mechanism (8) is installed on the side wall of the first conveyor frame (1), and the driving mechanism (8) is connected to the rotating shaft of the first conveyor belt (3) and the turning mechanism (7); and a material discharge mechanism (6) is installed on the top of one end of the first conveyor frame (1) away from the driving mechanism (8).

2. The electronic component size measurement visual inspection device according to claim 1, characterized in that: The material discharge mechanism (6) comprises a storage cylinder (61), the top of the first conveying frame (1) is provided with a storage cylinder (61), the bottom surface of the storage cylinder (61) is tightly fitted to the top of the first conveying belt (3), both sides of the storage cylinder (61) are fixedly installed with fixing plates (62), the fixing plates (62) are connected to the top surface of the first conveying frame (1) by bolts, and a discharge port (63) is opened at the bottom of one side of the storage cylinder (61) close to the visual inspection head (5).

3. The electronic component dimension measurement visual inspection device according to claim 2, characterized in that: The inner cavity length and width of the storage cylinder (61) are respectively equal to the length and width of the circuit board, the height of the discharge port (63) is greater than the thickness of one circuit board and less than the sum of the thicknesses of two circuit boards, and the friction coefficient between the first conveyor belt (3) and the circuit board is greater than the friction coefficient between the circuit boards.

4. The electronic component dimension measurement visual inspection device according to claim 1, characterized in that: The turning mechanism (7) comprises an intermediate frame (71), wherein the intermediate frame (71) is arranged between the first conveying frame (1) and the second conveying frame (2), a driven shaft (72) is rotatably sleeved at the top of the intermediate frame (71), a rotating drum (73) is fixedly sleeved at the middle of the driven shaft (72), a plurality of temporary storage boxes (74) are fixedly mounted on the circumferential outer wall of the rotating drum (73), a chute (75) is fixedly mounted at the end of the first conveying frame (1), the top of the chute (75) is in contact with the end of the first conveyor belt (3), and the bottom of the chute (75) is movably in contact with the open end of the temporary storage box (74).

5. The electronic component dimension measurement visual inspection device according to claim 4, characterized in that: One end of the driven shaft (72) passes through the intermediate frame (71) and is connected to the driving mechanism (8) through a transmission belt and a transmission wheel. Three temporary storage boxes (74) are evenly distributed along the circumferential direction of the rotating drum (73). The inner cavity depth of the temporary storage box (74) is equal to half the length of the circuit board. The friction coefficient between the second conveyor belt (4) and the circuit board is greater than the friction coefficient between the circuit board and the inner wall of the temporary storage box (74).

6. The electronic component dimension measurement visual inspection device according to claim 5, characterized in that: The driving mechanism (8) comprises a fixed seat (81), the outer wall of the first conveying frame (1) is fixedly mounted with the fixed seat (81), a motor (82) is fixedly mounted on the fixed seat (81), an output shaft of the motor (82) is fixedly sleeved with a driving wheel (83), the outer wall of the first conveying frame (1) at the bottom of the fixed seat (81) is rotatably sleeved with a transmission shaft (84), and a driven wheel (85) is fixedly sleeved on the transmission shaft (84) and a rotating shaft of the first conveying belt (3). ), the driven wheel (85) is provided with a plurality of stop grooves (86), a push groove (87) is provided on the driven wheel (85) between two adjacent stop grooves (86), a rotation groove (88) is provided on the driving wheel (83), a push rod (89) is installed on the end surface of the driving wheel (83) in the middle of the rotation groove (88) through a connecting rod, the push rod (89) is movably engaged with the push groove (87), and one end of the transmission shaft (84) is connected to the driven shaft (72) through a transmission wheel and a transmission belt.

7. The electronic component dimension measurement visual inspection device according to claim 6, characterized in that: The stop groove (86) is an arc-shaped structure adapted to the circumferential outer wall of the driving wheel (83), the diameter of the push rod (89) is equal to the inner cavity width of the push groove (87), and the two driven wheels (85) are symmetrically distributed at the top and bottom of the driving wheel (83).

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