A circuit board auxiliary inspection apparatus

Abstract

The utility model relates to electronic detection device technical field especially, more particularly to a kind of circuit board auxiliary inspection equipment, including workbench, the one side of workbench is fixedly connected with fixed plate, the other side of fixed plate is fixedly connected with support, the upper end of workbench is installed with the rotating mechanism of driving circuit board rotation, the inside of fixed plate is installed with the cleaning mechanism for cleaning circuit board outside and circuit board inside assembly hole, the lower end of workbench is provided with collection groove, through the intermittent rotation of rotating mechanism and the coordinated action of cleaning mechanism, the synchronous performance of circuit board surface spray cleaning and assembly hole inside brush cleaning is realized, the sequential processing of four groups of circuit boards is simultaneously completed, process switching time is reduced, and the dual cleaning needs of hole and surface are considered.

Description

Technical Field

[0001] This utility model relates to the field of electronic testing device technology, and in particular to a circuit board auxiliary inspection device. Background Technology

[0002] As a core component of electronic equipment, the cleanliness of the circuit board's surface and mounting holes directly affects the operational stability and lifespan of the electronic equipment. During the production and maintenance of circuit boards, it is necessary to thoroughly clean the dust, solder slag, and residual impurities inside the mounting holes; otherwise, it may easily lead to faults such as short circuits and poor contact.

[0003] Traditional cleaning methods rely heavily on manual hand tools, processing only one circuit board at a time. Furthermore, the surface and mounting holes must be cleaned separately, making the process cumbersome and unsuitable for mass production. Existing equipment primarily focuses on surface cleaning, failing to effectively reach hidden areas inside mounting holes. This results in the incomplete removal of residual metal shavings, dust, and other impurities, affecting the assembly accuracy of subsequent components and circuit continuity. During cleaning, the output of cleaning fluid is often continuous, lacking precise control and prone to overuse and waste. This not only pollutes the work environment but may also cause secondary contamination of the circuit boards. Therefore, this invention proposes an auxiliary circuit board inspection device. Utility Model Content

[0004] The main objective of this invention is to provide an auxiliary inspection device for circuit boards, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A circuit board auxiliary inspection device includes a workbench, a fixing plate fixedly connected to one side of the workbench, a bracket fixedly connected to the other side of the fixing plate, a rotating mechanism for driving the circuit board to rotate installed at the upper end of the workbench, a cleaning mechanism for cleaning the outer side and inner side mounting holes of the circuit board installed on the inner side of the fixing plate, and a collection trough provided at the lower end of the workbench.

[0007] Preferably, the rotating mechanism includes a first motor mounted on the outside of the bracket, the output shaft of the first motor being fixedly connected to a first rotating shaft, a first connecting rod being fixedly connected to the outside of the first rotating shaft, a second rotating shaft being rotatably connected to the inside of the first connecting rod, a second connecting rod being rotatably connected to the outside of the second rotating shaft, and a grooved wheel being rotatably connected to the outside of the second connecting rod.

[0008] Preferably, the outer side of the grooved wheel is provided with multiple sets of radial grooves, and the inner side of the radial groove on the outer side of the grooved wheel is rotatably connected to the cylindrical pin on the inner side of the second connecting rod.

[0009] Preferably, one end of the grooved wheel is fixedly connected to a third rotating shaft, the outer side of the third rotating shaft is rotatably connected to a fixed plate, the other end of the third rotating shaft is fixedly connected to a first bevel gear, the outer side of the first bevel gear is meshed with a second bevel gear, the inner side of the second bevel gear is fixedly connected to a drain pipe, the upper end of the drain pipe is fixedly connected to a turntable, and the outer side of the drain pipe is rotatably connected to a collection trough at the lower end of the workbench.

[0010] Preferably, an L-shaped slide rod is slidably connected to the inner side of the radial groove on the outer side of the grooved wheel. The outer side of the L-shaped slide rod is rotatably connected to the second connecting rod through a fixed shaft. The outer side of the L-shaped slide rod is slidably connected to the sliding groove on the inner side of the fixed plate through a slider. An mounting plate is fixedly connected to the inner side of the L-shaped slide rod.

[0011] Preferably, the cleaning mechanism includes a second motor mounted on the upper end of an L-shaped slide bar. The output shaft of the second motor is fixedly connected to a fourth rotating shaft. The outer side of the fourth rotating shaft is rotatably connected to the L-shaped slide bar. The lower end of the fourth rotating shaft is fixedly connected to a mounting housing. A first gear is fixedly connected to the inner side of the mounting housing on the outer side of the fourth rotating shaft. Four sets of symmetrical second gears are meshed with the outer side of the first gear. Cleaning brushes are fixedly connected to the inner side of each of the four sets of second gears. The outer sides of each of the four sets of cleaning brushes are rotatably connected to the mounting housing.

[0012] Preferably, a third gear is fixedly connected to the outer side of the fourth rotating shaft, a chain is meshed with the outer side of the third gear, a fourth gear is meshed with the inner side of the chain, a discharge pipe is fixedly connected to the inner side of the fourth gear, a storage tank is rotatably connected to the outer side of the discharge pipe, the lower end of the storage tank is fixedly connected to an L-shaped slide rod, a T-shaped valve is fixedly connected to the lower end of the discharge pipe, a collection cylinder is rotatably connected to the outer side of the T-shaped valve, the outer side of the collection cylinder is fixedly connected to a mounting plate, and an electric spray head is installed on the outer side of the collection cylinder.

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

[0014] This device achieves simultaneous spray cleaning of the circuit board surface and brush cleaning of the assembly hole interior through the intermittent rotation of the rotating mechanism and the coordinated action of the cleaning mechanism. It can process four sets of circuit boards in sequence at the same time, reducing process changeover time compared to a single cleaning method, and taking into account the dual cleaning needs of the hole interior and surface. The linkage design of the grooved wheel mechanism and L-shaped slide bar ensures precise positioning of the circuit board during cleaning. The movement trajectory of the cleaning brush and spray head is controllable. The intermittent on-off design of the T-shaped valve can precisely control the timing of cleaning fluid output and recover leaked fluid through the collection cylinder, reducing the fluctuation of cleaning quality caused by positioning deviation or fluid waste. The real-time stirring of the cleaning fluid by the stirring rod prevents sedimentation from affecting the cleaning effect and extends the service life of the cleaning fluid. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a circuit board auxiliary inspection device according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the overall structure of an auxiliary circuit board inspection device according to the present invention;

[0018] Figure 3 This is a cross-sectional view of the overall structure of the rotating mechanism of the circuit board auxiliary inspection device of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the rotating mechanism of a circuit board auxiliary inspection device according to the present invention;

[0020] Figure 5 This is a cross-sectional view of the overall structure of the cleaning mechanism of the circuit board auxiliary inspection equipment of this utility model.

[0021] In the diagram: 1. Workbench; 2. Fixed plate; 3. Bracket; 4. Rotating mechanism; 41. First motor; 42. First shaft; 43. First connecting rod; 44. Second shaft; 45. Second connecting rod; 46. Grooved wheel; 47. Third shaft; 48. First bevel gear; 49. Second bevel gear; 410. Drain pipe; 411. Turntable; 412. L-shaped slide bar; 413. Mounting plate; 5. Cleaning mechanism; 51. Second motor; 52. Fourth shaft; 53. Mounting housing; 54. First gear; 55. Second gear; 56. Cleaning brush; 57. Third gear; 58. Chain; 59. Fourth gear; 510. Discharge pipe; 511. Storage hopper; 512. T-valve; 513. Collection cylinder; 514. Electric spray head. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1 - Figure 5 The circuit board auxiliary inspection device shown includes a workbench 1, a fixing plate 2 fixedly connected to one side of the workbench 1, a bracket 3 fixedly connected to the other side of the fixing plate 2, a rotating mechanism 4 for driving the circuit board to rotate installed at the upper end of the workbench 1, a cleaning mechanism 5 for cleaning the outer side and inner side mounting holes of the circuit board installed on the inner side of the fixing plate 2, and a collection trough provided at the lower end of the workbench 1.

[0024] In this embodiment, the rotating mechanism 4 includes a first motor 41 mounted on the outside of the bracket 3. The output shaft of the first motor 41 is fixedly connected to a first rotating shaft 42. A first connecting rod 43 is fixedly connected to the outside of the first rotating shaft 42. A second rotating shaft 44 is rotatably connected to the inside of the first connecting rod 43. A second connecting rod 45 is rotatably connected to the outside of the second rotating shaft 44. A grooved wheel 46 is rotatably connected to the outside of the second connecting rod 45.

[0025] Specifically, the first motor 41 provides rotational power, which drives the first connecting rod 43 to rotate through the first rotating shaft 42. The first connecting rod 43 drives the second connecting rod 45 to swing through the second rotating shaft 44, thereby driving the grooved wheel 46 to rotate intermittently, providing power for the step-by-step conveying of the circuit board.

[0026] In this embodiment, multiple sets of radial grooves are formed around the outer side of the groove wheel 46, and the inner side of the radial groove on the outer side of the groove wheel 46 is rotatably connected to the cylindrical pin on the inner side of the second connecting rod 45.

[0027] Specifically, the radial groove of the grooved wheel 46 engages with the cylindrical pin of the second connecting rod 45. By sliding and disengaging the cylindrical pin within the radial groove, the grooved wheel 46 rotates intermittently, precisely controlling the timing of the circuit board's pauses and movements.

[0028] In this embodiment, a third rotating shaft 47 is fixedly connected to one end of the grooved wheel 46. The outer side of the third rotating shaft 47 is rotatably connected to the fixed plate 2. A first bevel gear 48 is fixedly connected to the other end of the third rotating shaft 47. A second bevel gear 49 is meshed with the outer side of the first bevel gear 48. A drain pipe 410 is fixedly connected to the inner side of the second bevel gear 49. A turntable 411 is fixedly connected to the upper end of the drain pipe 410. The outer side of the drain pipe 410 is rotatably connected to the collection trough at the lower end of the workbench 1.

[0029] Specifically, the third rotating shaft 47 transmits the power of the grooved wheel 46 to the first bevel gear 48. The transmission direction is changed by the meshing of the first bevel gear 48 and the second bevel gear 49, which drives the drain pipe 410 and the turntable 411 to rotate, thereby realizing the rotational transport of the circuit board. At the same time, the drain pipe 410 guides the impurities generated during cleaning into the collection tank at the lower end of the workbench 1 for centralized collection.

[0030] In this embodiment, an L-shaped slide rod 412 is slidably connected to the inner side of the radial groove on the outer side of the grooved wheel 46. The outer side of the L-shaped slide rod 412 is rotatably connected to the second connecting rod 45 through a fixed shaft. The outer side of the L-shaped slide rod 412 is slidably connected to the sliding groove on the inner side of the fixed plate 2 through a slider. An mounting plate 413 is fixedly connected to the inner side of the L-shaped slide rod 412.

[0031] Specifically, under the drive of the second connecting rod 45, the L-shaped slide bar 412 slides along the radial groove of the grooved wheel 46 and the groove of the fixing plate 2, driving the cleaning mechanism 5 to move up and down as a whole, thereby adjusting the cleaning position. The slider prevents the L-shaped slide bar 412 from falling off when it moves. The mounting plate 413 is used to fix the collection cylinder 513.

[0032] In this embodiment, the cleaning mechanism 5 includes a second motor 51 mounted on the upper end of the L-shaped slide bar 412. The output shaft of the second motor 51 is fixedly connected to a fourth rotating shaft 52. The outer side of the fourth rotating shaft 52 is rotatably connected to the L-shaped slide bar 412. The lower end of the fourth rotating shaft 52 is fixedly connected to a mounting housing 53. The outer side of the fourth rotating shaft 52 and the inner side of the mounting housing 53 are fixedly connected to a first gear 54. The outer side of the first gear 54 is meshed with four sets of symmetrical second gears 55. The inner side of each of the four sets of second gears 55 is fixedly connected to a cleaning brush 56. The outer side of each of the four sets of cleaning brushes 56 is rotatably connected to the mounting housing 53.

[0033] Specifically, the second motor 51 drives the mounting housing 53 and the first gear 54 to rotate via the fourth rotating shaft 52. The first gear 54 meshes with four sets of second gears 55, driving four sets of cleaning brushes 56 to rotate synchronously, mechanically cleaning the inside of the circuit board mounting holes to remove burrs and impurities.

[0034] In this embodiment, a third gear 57 is fixedly connected to the outer side of the fourth rotating shaft 52, a chain 58 is meshed with the outer side of the third gear 57, a fourth gear 59 is meshed with the inner side of the chain 58, a discharge pipe 510 is fixedly connected to the inner side of the fourth gear 59, a storage tank 511 is rotatably connected to the outer side of the discharge pipe 510, the lower end of the storage tank 511 is fixedly connected to the L-shaped slide bar 412, a T-shaped valve 512 is fixedly connected to the lower end of the discharge pipe 510, a collection cylinder 513 is rotatably connected to the outer side of the T-shaped valve 512, the outer side of the collection cylinder 513 is fixedly connected to the mounting plate 413, and an electric spray head 514 is installed on the outer side of the collection cylinder 513.

[0035] Specifically, the fourth rotating shaft 52 drives the fourth gear 59 and the discharge pipe 510 to rotate via the third gear 57 and the chain 58. The discharge pipe 510 stirs the cleaning liquid in the storage tank 511 to prevent sedimentation. The T-type valve 512 rotates with the discharge pipe 510 and controls the output of the cleaning liquid by aligning and staggering with the electric spray head 514 to achieve intermittent spraying. The collection cylinder 513 collects the spilled cleaning liquid, and the electric spray head 514 sprays the cleaning liquid onto the surface of the circuit board, which, together with the cleaning brush 56, completes the comprehensive cleaning.

[0036] Working principle: When using this equipment, four sets of circuit boards are placed in the fixed clamps on the turntable 411. Then, the first motor 41 installed on the outside of the bracket 3 is started. Its output shaft drives the first rotating shaft 42 to rotate. The first rotating shaft 42 drives the first connecting rod 43 to rotate, so that the first connecting rod 43 drives the second connecting rod 45 to rotate through the second rotating shaft 44. When the cylindrical pin on the inner side of the second connecting rod 45 is aligned with the radial groove on the outer side of the grooved wheel 46, the second connecting rod 45 drives the grooved wheel 46 to rotate. The grooved wheel 46 drives the first bevel gear 48 to rotate through the third rotating shaft 47. The first bevel gear 48 meshes with the second bevel gear 49, thereby opening the drain pipe 410. The turntable 411 rotates, moving a set of circuit boards directly below the cleaning mechanism 5. The second motor 51 is then activated, its output shaft driving the fourth rotating shaft 52. The fourth rotating shaft 52 drives the mounting housing 53 and the first gear 54 to rotate. The first gear 54 meshes with multiple sets of second gears 55, causing multiple sets of cleaning brushes 56 to rotate simultaneously, cleaning the inside of the mounting holes on the circuit boards. Simultaneously, the fourth rotating shaft 52 drives the third gear 57 to rotate, which in turn drives the fourth gear 59 via the chain 58. The fourth gear 59 drives the discharge pipe 510 to rotate, which in turn drives the stirring rod to clean the inside of the storage tank 511. The liquid is stirred to prevent sedimentation. The discharge pipe 510 drives the T-valve 512 to rotate. When the discharge port of the T-valve 512 is aligned with the electric spray head 514, the cleaning liquid inside the storage tank 511 flows into the electric spray head 514 through the discharge pipe 510 to spray and clean the circuit board surface. When the discharge port of the T-valve 512 is misaligned with the electric spray head 514, the output stops to prevent waste. The collection cylinder 513, fixed by the mounting plate 413, collects the cleaning liquid that leaks during the rotation of the T-valve 512. At the same time, the second connecting rod 45 drives the L-shaped sliding rod 412 along the outside of the grooved wheel 46 via the fixed shaft. The radial groove slides, and the L-shaped slide bar 412 moves along the inner groove of the fixed plate 2 via the slider to prevent it from falling off during movement, thereby driving the cleaning mechanism 5 to move as a whole. When the L-shaped slide bar 412 moves upward along the radial groove, the second connecting rod 45 drives the cylindrical guide pin to move inward, so that the cylindrical pin fits with the radial groove. When the L-shaped slide bar 412 moves downward, the second connecting rod 45 drives the cylindrical pin to move outward and offset from the radial groove. This process is repeated to clean the surface of the circuit board and the mounting holes. Combined with the funnel-shaped structure of the turntable 411, the cleaned impurities flow into the collection tank at the lower end of the workbench 1 through the drain pipe 410 for centralized treatment.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board auxiliary inspection device, comprising a workbench (1), characterized in that: A fixing plate (2) is fixedly connected to one side of the workbench (1), and a bracket (3) is fixedly connected to the other side of the fixing plate (2). A rotating mechanism (4) that drives the circuit board to rotate is installed at the upper end of the workbench (1). A cleaning mechanism (5) that cleans the outer side of the circuit board and the inner side of the circuit board mounting holes is installed on the inner side of the fixing plate (2). A collection trough is provided at the lower end of the workbench (1).

2. The circuit board auxiliary inspection device according to claim 1, characterized in that: The rotating mechanism (4) includes a first motor (41) mounted on the outside of the bracket (3). The output shaft of the first motor (41) is fixedly connected to a first rotating shaft (42). The outside of the first rotating shaft (42) is fixedly connected to a first connecting rod (43). The inside of the first connecting rod (43) is rotatably connected to a second rotating shaft (44). The outside of the second rotating shaft (44) is rotatably connected to a second connecting rod (45). The outside of the second connecting rod (45) is rotatably connected to a grooved wheel (46).

3. The circuit board auxiliary inspection device according to claim 2, characterized in that: The outer side of the grooved wheel (46) is provided with multiple sets of radial grooves, and the inner side of the radial groove on the outer side of the grooved wheel (46) is rotatably connected to the cylindrical pin on the inner side of the second connecting rod (45).

4. The circuit board auxiliary inspection device according to claim 2, characterized in that: One end of the grooved wheel (46) is fixedly connected to a third rotating shaft (47). The outer side of the third rotating shaft (47) is rotatably connected to the fixed plate (2). The other end of the third rotating shaft (47) is fixedly connected to a first bevel gear (48). The outer side of the first bevel gear (48) is meshed with a second bevel gear (49). The inner side of the second bevel gear (49) is fixedly connected to a drain pipe (410). The upper end of the drain pipe (410) is fixedly connected to a turntable (411). The outer side of the drain pipe (410) is rotatably connected to the collection trough at the lower end of the workbench (1).

5. The circuit board auxiliary inspection device according to claim 2, characterized in that: An L-shaped slide rod (412) is slidably connected to the inner side of the radial groove on the outer side of the groove wheel (46). The outer side of the L-shaped slide rod (412) is rotatably connected to the second connecting rod (45) through a fixed shaft. The outer side of the L-shaped slide rod (412) is slidably connected to the inner groove of the fixed plate (2) through a slider. An mounting plate (413) is fixedly connected to the inner side of the L-shaped slide rod (412).

6. The circuit board auxiliary inspection device according to claim 1, characterized in that: The cleaning mechanism (5) includes a second motor (51) installed on the upper end of an L-shaped slide bar (412). The output shaft of the second motor (51) is fixedly connected to a fourth rotating shaft (52). The outer side of the fourth rotating shaft (52) is rotatably connected to the L-shaped slide bar (412). The lower end of the fourth rotating shaft (52) is fixedly connected to a mounting housing (53). The outer side of the fourth rotating shaft (52) and the inner side of the mounting housing (53) are fixedly connected to a first gear (54). The outer side of the first gear (54) is meshed with four sets of symmetrical second gears (55). The inner side of each of the four sets of second gears (55) is fixedly connected to a cleaning brush (56). The outer side of each of the four sets of cleaning brushes (56) is rotatably connected to the mounting housing (53).

7. The circuit board auxiliary inspection device according to claim 6, characterized in that: The outer side of the fourth rotating shaft (52) is fixedly connected to a third gear (57), the outer side of the third gear (57) is meshed with a chain (58), the inner side of the chain (58) is meshed with a fourth gear (59), the inner side of the fourth gear (59) is fixedly connected to a discharge pipe (510), the outer side of the discharge pipe (510) is rotatably connected to a storage tank (511), the lower end of the storage tank (511) is fixedly connected to an L-shaped slide bar (412), the lower end of the discharge pipe (510) is fixedly connected to a T-shaped valve (512), the outer side of the T-shaped valve (512) is rotatably connected to a collection cylinder (513), the outer side of the collection cylinder (513) is fixedly connected to a mounting plate (413), and an electric spray head (514) is installed on the outer side of the collection cylinder (513).

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