Circuit board function automatic detection equipment

Abstract

The invention relates to the field of circuit boards, in particular to a circuit board function automatic detection device which comprises a base, a detection mechanism used for conducting function testing on a circuit board and a distinguishing assembly capable of classifying finished products and inferior-quality products. The detection mechanism comprises a placing table which is installed on the base and is used for placing a circuit board to be detected; and the gear motor is arranged on a bracket of the placing table. Through the arrangement of the detection mechanism and the distinguishing assembly, a speed reduction motor is used for driving a short groove rod to rotate, a movable clamping frame can be driven to drive a detector to vertically descend along a support of a placement table and make contact with a circuit board on the placement table, function detection is conducted on the circuit board, the detector does not need to be manually pressed downwards, and therefore physical output of workers is saved, and the working efficiency is improved. The induction motor is matched with the long groove rod, the finished products and the defective products can be pushed in different directions through signals sent by the detector, and therefore the finished products and the defective products can be distinguished, and compared with manual distinguishing, the error rate can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of circuit boards, and in particular to an automatic circuit board function detection device. Background Art

[0002] A circuit board, also known as a printed circuit board, is a circuit component based on copper foil and resin. It is usually composed of two or more layers of boards separated by insulating materials in the middle. It can connect electronic components and realize the transmission and processing of electronic signals. Therefore, it is widely used in various electronic equipment and is an indispensable part of modern electronic technology.

[0003] After the circuit board is processed, it needs to be functionally tested to ensure that it can be put into use in electronic equipment. Currently, the functional testing of circuit boards is completed through manual auxiliary testing devices. The circuit board needs to be placed manually in the testing area of ​​the testing equipment, and the testing head is pressed down until it contacts the circuit board. Then the testing device is started and waits for a while. Subsequently, workers are required to classify and place the circuit boards according to the test results. Since the existing testing device is equipped with an anti-mistouch mechanism, workers need to spend a lot of effort when pressing down the testing head. Long-term work consumes a lot of physical energy for workers, and workers may be distracted while working, thereby confusing finished products with defective products, resulting in an increase in the scrap rate of electronic equipment produced subsequently. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, a circuit board function automatic detection device is provided.

[0005] The technical implementation scheme of the present invention is: an automatic circuit board function detection device, including a base, a detection mechanism for performing functional tests on circuit boards, and a distinguishing component capable of classifying finished products and defective products; the detection mechanism includes: a placement table installed on the base for placing the circuit board to be detected; a reduction motor arranged on the bracket of the placement table; a short slot rod fixedly connected to the end of the output shaft of the reduction motor and capable of rotating synchronously with the output shaft of the reduction motor; a movable card frame that slides with the bracket of the placement table and one end of which is inserted into the slot hole of the short slot rod; and a detector installed on the movable card frame for testing the circuit board; the distinguishing component includes: a push rack that can slide on the placement table and push the circuit board placed on the placement table; an induction motor that provides driving force for the sliding of the push rack; and a long slot rod arranged on the output shaft of the induction motor and slidingly matched with the push rack.

[0006] More preferably, a columnar protrusion is provided at the bottom of the pusher rack, and is inserted into the slot hole of the long slot rod through the columnar protrusion; when the long slot rod swings, the columnar protrusion can slide in the slot hole of the long slot rod and drive the pusher rack to slide in the horizontal direction and push the circuit board.

[0007] More preferably, a wire-pushing assembly is provided on the bracket of the placement table, and the wire-pushing assembly comprises: two limit blocks installed on the placement table for positioning the circuit board; a return-shaped frame that can slide on the bracket of the placement table and can push the wires on the circuit board away; and a wedge-shaped folding rod that can slide synchronously with the return-shaped frame and whose top is slidably matched with the movable card frame.

[0008] More preferably, the area enclosed by the two limit blocks is located directly below the detector; the contact portion between the wedge-shaped folding rod and the movable card bracket is set as an inclined surface, and when the movable card bracket descends, the wedge-shaped folding rod will be pressed backward; a spring is provided between the wedge-shaped folding rod and the bracket of the placement table.

[0009] More preferably, a positioning piece is provided at the bottom of the placement table, and the positioning piece can pass through the placement table, and cooperate with the two limit blocks to form a limit area consistent with the specifications of the circuit board, ensuring that the circuit board is located directly below the detector and cannot move during detection.

[0010] More preferably, the positioning member includes a lifting portion and a positioning portion; the lifting portion is used in conjunction with the circular frame; two protrusions that can contact the lifting portion are symmetrically arranged on the circular frame; the contact portion between the lifting portion and the protrusion is arranged to be wedge-shaped; the positioning portion can pass through the placing table, and the portion passing through the placing table is chamfered.

[0011] More preferably, a material conveying assembly is further provided on the base, and the material conveying assembly comprises: a transverse conveyor belt for transporting the inspected circuit boards into the material frame; and a longitudinal conveyor belt for transporting the material frame filled with finished circuit boards outward.

[0012] More preferably, a plurality of compartments are evenly arranged on the transverse conveyor belt, and the specifications of the compartments are adapted to the size of the circuit boards; the transverse conveyor belt is located directly below the pushing part of the pushing rack, and the pushing rack can push the circuit boards into the compartments of the transverse conveyor belt for transportation.

[0013] More preferably, a pushing assembly is arranged on the transverse conveyor belt for transporting the finished circuit boards, and the pushing assembly comprises: a pushing plate group for pushing the finished circuit boards on the transverse conveyor belt into a material frame; and an electric push rod whose output shaft is connected to the pushing plate group and can push the pushing plate group to perform reciprocating motion.

[0014] More preferably, the push plate group is composed of multiple push plates, and the width of the push plates is consistent with the specifications of the compartments on the transverse conveyor belt; there are gaps between the push plates on the push plate group for the partitions on the transverse conveyor belt to slide.

[0015] The present invention has the following advantages: 1. Through the arrangement of the detection mechanism and the distinguishing component, the present invention utilizes the reduction motor to drive the short slot rod to rotate, which can drive the movable card frame to drive the detector to vertically descend along the bracket of the placement table, and contact the circuit board on the placement table to perform a functional test on it, without the need to manually press down the detector, thereby saving the physical exertion of the workers, and utilizing the induction motor and the long slot rod to cooperate with the signal sent by the detector to push the finished product and the defective product in different directions, thereby realizing the distinction between the two, and compared with manual distinction, the error rate will be greatly reduced; 2. Through the setting of the wire-pickup assembly, when the movable card frame descends, the wedge-shaped folding rod and the return frame will be pressed back, so that the return frame will flatten the wires standing on the edge of the circuit board to avoid affecting the test of the detector; 3. By setting the positioning parts, the position of the circuit board can be limited when the circuit board is tested for function, so that it cannot move, ensuring the smooth completion of the test process; 4. Through the setting of feeding components and pushing components, the finished circuit boards can be transported one by one by using the transverse conveyor belt. When the number of circuit boards on the transverse conveyor belt reaches a certain amount, the electric push rod can be started to drive the pushing plate group to push the finished products into the material frame on the longitudinal conveyor belt. When the material frame is full, it can also be transported outward through the longitudinal conveyor belt, thereby reducing the consumption of labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a front view of an exemplary embodiment of the present invention.

[0018] Figure 2 It is an enlarged view of the detection mechanism in an exemplary embodiment of the present invention.

[0019] Figure 3 It is a side view of a detection mechanism in an exemplary embodiment of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of a placing table and a pushing rack in an exemplary embodiment of the present invention.

[0021] Figure 5 It is a schematic structural diagram of distinguishing components in an exemplary embodiment of the present invention.

[0022] Figure 6 It is a side view of a wire-placing assembly in an exemplary embodiment of the present invention.

[0023] Figure 7 It is a schematic structural diagram of a placement table and a positioning member in an exemplary embodiment of the present invention.

[0024] Figure 8 for Figure 7 Schematic diagram after hiding the return frame and placement table.

[0025] Fig. 9 It is a schematic structural diagram of a material feeding assembly in an exemplary embodiment of the present invention.

[0026] Fig.10 It is a schematic structural diagram of a transverse conveyor belt and a push plate group in an exemplary embodiment of the present invention.

[0027] Fig.11 It is a bottom view of a pusher assembly in an exemplary embodiment of the present invention.

[0028] The markings of the components in the accompanying drawings are as follows: 1. Base, 2. Detection mechanism, 21. Placement table, 22. Reducer motor, 23. Short slot rod, 24. Movable card holder, 25. Detector, 3. Distinguishing component, 31. Pushing rack, 32. Induction motor, 33. Long slot rod, 4. Wire dialing component, 41. Wedge-shaped folding rod, 42. Return frame, 43. Limit block, 5. Positioning part, 51. Lifting part, 52. Positioning part, 6. Feeding component, 61. Horizontal conveyor belt, 62. Longitudinal conveyor belt, 7. Pushing component, 71. Pushing plate group, 72. Electric push rod. DETAILED DESCRIPTION

[0029] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment I: A circuit board function automatic detection device, such as Figure 1-Figure 5As shown, it includes a base 1, a base 1 and a base 1, including a base 1, a detection mechanism 2 for performing functional tests on circuit boards, and a distinguishing component 3 capable of classifying finished products and defective products; the detection mechanism 2 includes: a placement table 21, the placement table 21 is fixedly mounted on the base 1 by bolts, and the placement table 21 includes a bracket part and a discharge part, and the circuit board to be tested is placed on the discharge part of the placement table 21; a reduction motor 22, the reduction motor 22 is mounted on the bracket part of the placement table 21, and its output shaft passes through the left side wall of the bracket part of the placement table 21; a short slot rod 23, the short slot rod 23 is welded to the left end of the output shaft of the reduction motor 22, and can rotate synchronously with the output shaft of the reduction motor 22; a movable bracket 24, the movable bracket 24 is clamped on the bracket part of the placement table 21, and can slide on the bracket part of the placement table 21, and its left end is clamped into the slot hole of the short slot rod 23, The rotation of the short slot rod 23 will compress the movable card frame 24 to rise and fall along the bracket part of the placement table 21; the detector 25, the detector 25 is installed on the movable card frame 24, and is used to perform functional testing on the circuit board; the distinguishing component 3 includes: a pushing rack 31, the pushing part of the pushing rack 31 can slide in the horizontal direction in close contact with the discharge part of the placement table 21, and push the circuit board placed on the placement table 21, and a columnar protrusion is provided at the bottom of the pushing rack 31; an induction motor 32, the induction motor 32 is installed in the base 1, can receive the signal emitted by the detector 25, and provide power for the sliding of the pushing rack 31; the long slot rod 33, the long slot rod 33 is fixedly arranged on the output shaft of the induction motor 32, and can swing synchronously with it, the columnar protrusion at the bottom of the pushing rack 31 is stuck in the slot hole of the long slot rod 33, and when the long slot rod 33 swings, it will drive the pushing rack 31 to slide in close contact with the discharge part of the placement table 21.

[0031] The inspection worker places the circuit board on the placement table 21, and then starts the reduction motor 22 to make the short slot rod 23 rotate clockwise, press the movable card frame 24 to slide downward, so that the detector 25 drops to contact the circuit board. After completing the functional inspection of the circuit board, the detector 25 will send a signal to the induction motor 32 to make it rotate in different directions, and cooperate with the long slot rod 33 to drive the push rack 31 to slide, so that the push rack 31 pushes the finished circuit board to the left and pushes the defective products to the right, thereby completing the inspection and differentiation of the circuit boards.

[0032] like Figure 1 and Figure 6As shown, a wire-pulling assembly 4 is arranged on the bracket of the placement table 21, and the wire-pulling assembly 4 comprises: a limit block 43, two limit blocks 43 are arranged, symmetrically welded to the middle part of the placement table 21, and the area enclosed by the two limit blocks 43 is located directly below the detector 25, so as to position the circuit board placed on the placement table 21; a return frame 42, the return frame 42 slides out of the bracket part of the placement table 21, and can push the wires on the circuit board away when sliding backward; a wedge-shaped folding rod 4, the wedge-shaped folding rod 4 is fixed to the rear end of the return frame 42 by bolts, and the top thereof is slidably matched with the movable bracket 24 and is arranged as an inclined plane. When the movable bracket 24 descends, the wedge-shaped folding rod 41 will be pressed backward, and the return frame 42 will be pressed backward at the same time, and a spring for resetting the wedge-shaped folding rod 41 is arranged between the wedge-shaped folding rod 41 and the bracket of the placement table 21.

[0033] After the inspection worker places the circuit board between the two limit blocks 43, the detector 25 can directly contact the circuit board when it descends, and the worker does not need to adjust its position, thereby improving the inspection efficiency. When the movable bracket 24 descends, it will contact the inclined surface of the wedge-shaped folding rod 41, forcing the wedge-shaped folding rod 41 and the return frame 42 to slide backward, and at the same time flatten the upright wires on the circuit board without manual flattening. When the detector 25 is subsequently raised, the wedge-shaped folding rod 41 and the return frame 42 will also be reset under the action of the spring.

[0034] like Figure 7 and Figure 8 As shown, a positioning member 5 is provided at the bottom of the placement table 21, and the positioning member 5 includes a lifting portion 51 and a positioning portion 52; the lifting portion 51 is used in conjunction with the return frame 42, and when the return frame 42 moves backward, the columnar protrusions provided thereon will contact the wedge-shaped part of the lifting portion 51 and lift up the entire positioning member 5; the positioning portion 52 is used in conjunction with two limit blocks 43, and when the entire positioning member 5 is lifted up, the positioning portion 52 will pass through the placement table 21, and surround an area that meets the specifications of the circuit board with the two limit blocks 43, so that the circuit board cannot move during detection, ensuring that the detection process can be successfully completed, and the part of the positioning portion 52 that passes through the placement table 21 is chamfered.

[0035] Example II: Based on Example I, in order to further reduce the consumption of labor costs, Figure 1 , Fig. 9 and Fig.10As shown, a feed assembly 6 is also provided on the base 1, and the feed assembly 6 includes: a transverse conveyor belt 61, and two groups of transverse conveyor belts 61 are provided. The transverse conveyor belt 61 located on the left is used to convey finished circuit boards, and the transverse conveyor belt 61 located on the right is used to convey defective products. The transverse conveyor belt 61 is located directly below the pushing part of the pushing rack 31. A plurality of compartments are provided on the two transverse conveyor belts 61, and the compartment specifications are adapted to the size of the circuit boards. The pushing rack 31 can push the circuit boards into the compartments of the transverse conveyor belts 61, so that the circuit boards are stably and neatly conveyed into the material frame; a longitudinal conveyor belt 62, and the longitudinal conveyor belt 62 is installed on the left side of the base 1, and is used to convey the material frame containing the finished circuit boards.

[0036] like Figure 1 , Fig.10 and Fig.11 As shown, a pusher assembly 7 is provided on the transverse conveyor belt 61 for transporting finished circuit boards, and the pusher assembly 7 comprises: a pusher plate group 71, the pusher plate group 71 is composed of five pusher plates whose widths are consistent with the specifications of the compartments on the transverse conveyor belt 61, and there are gaps between the pusher plates for the partitions on the transverse conveyor belt 61 to slide, so that the finished circuit boards in the compartments on the transverse conveyor belt 61 can be pushed into the material frame; an electric push rod 72, the output shaft of the electric push rod 72 is connected to the pusher plate group 71, and can provide power for the operation of the pusher plate group 71.

[0037] After the push rack 31 pushes the circuit board into the compartment of the transverse conveyor belt 61, the defective products will be conveyed to the right and collected and processed together, and the finished products will be conveyed to the left. After the left transverse conveyor belt 61 is full of five circuit boards, starting the electric push rod 72 can make the push plate group 71 move forward and push the circuit boards on the transverse conveyor belt 61 into the material box placed in advance on the longitudinal conveyor belt 62. After the material box is full, it can be conveyed forward through the longitudinal conveyor belt 62, thereby reducing manpower consumption.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic circuit board function detection device, comprising a base (1), a detection mechanism (2) for performing a function test on a circuit board, and a distinguishing component (3) capable of classifying finished products and defective products; Its characteristics are: The detection mechanism (2) comprises: a placement table (21) mounted on the base (1) and used for placing a circuit board to be detected; a reduction motor (22) arranged on a bracket of the placement table (21); a short slot rod (23) fixedly connected to the end of the output shaft of the reduction motor (22) and capable of rotating synchronously with the output shaft of the reduction motor (22); a movable bracket (24) slidably matched with the bracket of the placement table (21) and one end of which is clamped in a slot hole of the short slot rod (23); and a detector (25) mounted on the movable bracket (24) and used for testing the circuit board; The distinguishing component (3) comprises: a pusher rack (31) capable of sliding on the placement table (21) and pushing a circuit board placed on the placement table (21); an induction motor (32) providing a driving force for the sliding of the pusher rack (31); and a long slot rod (33) arranged on the output shaft of the induction motor (32) and slidably matched with the pusher rack (31).

2. The circuit board function automatic detection device according to claim 1 is characterized in that: The bottom of the pusher rack (31) is provided with a columnar protrusion, and the columnar protrusion is inserted into the slot hole of the long slot rod (33); when the long slot rod (33) swings, the columnar protrusion can slide in the slot hole of the long slot rod (33) and drive the pusher rack (31) to slide in the horizontal direction and push the circuit board.

3. The circuit board function automatic detection device according to claim 2 is characterized in that: A wire-push assembly (4) is arranged on the bracket of the placement table (21), and the wire-push assembly (4) comprises: two limit blocks (43) mounted on the placement table (21) and used to position the circuit board; a return frame (42) capable of sliding on the bracket of the placement table (21) and capable of pushing the wires on the circuit board away; and a wedge-shaped folding rod (41) capable of sliding synchronously with the return frame (42) and having a top that is slidably matched with the movable bracket (24).

4. The circuit board function automatic detection device according to claim 3 is characterized in that: The area enclosed by the two limit blocks (43) is located directly below the detector (25); the contact portion between the wedge-shaped folding rod (41) and the movable card frame (24) is arranged as an inclined surface, and when the movable card frame (24) descends, it presses the wedge-shaped folding rod (41) backward; and a spring is arranged between the wedge-shaped folding rod (41) and the bracket of the placement table (21).

5. The circuit board function automatic detection device according to claim 4 is characterized in that: A positioning piece (5) is provided at the bottom of the placement platform (21); the positioning piece (5) can pass through the placement platform (21) and, in conjunction with the two limiting blocks (43), can enclose a limiting area consistent with the specifications of the circuit board, thereby ensuring that the circuit board is located directly below the detector (25) and cannot move during detection.

6. The circuit board function automatic detection device according to claim 5 is characterized in that: The positioning member (5) comprises a lifting portion (51) and a positioning portion (52); the lifting portion (51) is used in conjunction with the return frame (42); two protrusions capable of contacting the lifting portion (51) are symmetrically arranged on the return frame (42); the contact portion between the lifting portion (51) and the protrusions is arranged in a wedge shape; the positioning portion (52) can pass through the placement platform (21), and the portion passing through the placement platform (21) is chamfered.

7. The circuit board function automatic detection device according to claim 6 is characterized in that: A material conveying assembly (6) is also provided on the base (1), and the material conveying assembly (6) comprises: a transverse conveyor belt (61) for conveying the inspected circuit boards into the material frame; and a longitudinal conveyor belt (62) for conveying the material frame filled with finished circuit boards outward.

8. The circuit board function automatic detection device according to claim 7 is characterized in that: A plurality of compartments are evenly arranged on the transverse conveyor belt (61), and the specifications of the compartments are adapted to the size of the circuit boards; the transverse conveyor belt (61) is located directly below the pushing portion of the pushing rack (31), and the pushing rack (31) is capable of pushing the circuit boards into the compartments of the transverse conveyor belt (61) for transportation.

9. The circuit board function automatic detection device according to claim 8, characterized in that: A pushing assembly (7) is arranged on the transverse conveyor belt (61) for transporting finished circuit boards, and the pushing assembly (7) comprises: a pushing plate group (71) for pushing the finished circuit boards on the transverse conveyor belt (61) into a material frame; and an electric push rod (72) having an output shaft connected to the pushing plate group (71) and capable of pushing the pushing plate group (71) to perform reciprocating motion.

10. The circuit board function automatic detection device according to claim 9, characterized in that: The push plate group (71) is composed of a plurality of push plates, and the width of the push plates is consistent with the specifications of the compartments on the transverse conveyor belt (61); there are gaps between the push plates on the push plate group (71) for the partitions on the transverse conveyor belt (61) to slide.

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