PCB automatic test type bearing platform

Abstract

The utility model discloses a PCB automatic test type bearing platform, and belongs to the technical field of PCB testing. The device mainly comprises a bearing table and two turnover mechanisms, the top of the bearing table is rotationally connected with a plurality of rollers, a support is installed on the outer side wall of the bearing table, an air cylinder is installed at the top of the support, a moving mechanism is installed at the output end of the air cylinder, and a visual detector is installed at the bottom of the moving mechanism; the turnover mechanism comprises a supporting plate installed on the top of the bearing table. According to the PCB automatic test type bearing platform, the clamping plate clamps the PCB through the arranged electric push rod, then the power source is used for controlling the two swing plates to rotate anticlockwise by 180 degrees, the PCB is turned over, automatic operation is adopted to replace manual turning, manual operation is reduced, the two faces of the PCB are continuously tested, and the testing efficiency is improved. The overall test period is shortened, and the requirement for testing a large batch of PCBs can be met.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board testing, and in particular to a PCB board automatic testing type carrying platform. Background Art

[0002] PCBs, also known as printed circuit boards (PCBs), are important electronic components that support and connect electronic components. Currently, the most widely used automated optical inspection technology for PCB defect testing is a non-contact method based on machine vision. This system, comprised of hardware such as light sources, cameras, and computers, and software technologies such as image processing and pattern recognition, can replace the human eye and brain in identification and analysis. However, during PCB testing, a supporting platform is required to support the PCB.

[0003] Chinese patent authorization announcement number: CN221100491 U discloses a Bluetooth PCBA board automatic test load-bearing platform. When the fixture is limited and fixed, the staff only needs to pull the limit component. When the fixture is subsequently disassembled, the staff only needs to pull the fixing component upwards. This simplifies the fixture installation steps to a certain extent and improves the fixture installation speed.

[0004] Currently, double-sided PCBs typically have different circuit components, connection methods, and functional areas on each side. Testing both sides for defects can comprehensively detect problems in each part and ensure the normal operation of the entire PCB. However, in the above solution, after testing one side of the PCB, the PCB must be manually flipped over. Manual flipping increases the time cost of the entire testing process, reduces test efficiency, and is difficult to meet the needs of large-scale PCB testing.

[0005] Therefore, it is necessary to provide a PCB board automatic test type carrying platform to solve the above problems.

[0006] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Utility Model Content

[0007] Based on the above-mentioned problems existing in the prior art, the problem to be solved by this application is: to provide an automatic testing type carrying platform for PCB boards, in which the clamping plate is clamped on the PCB board by a set electric push rod, and then the two swing plates are controlled by a power source to rotate 180° counterclockwise, thereby turning the PCB board over. Automated operation is used to replace manual turning, reducing human operation, continuously testing both sides of the PCB board, shortening the overall test cycle, and being able to meet the testing needs of large quantities of PCB boards.

[0008] The technical solution adopted by the present application to solve its technical problems is: a PCB board automatic testing type carrying platform, comprising: a carrying platform and two flipping mechanisms, wherein the top of the carrying platform is rotatably connected to multiple rollers, and the outer wall of the carrying platform is installed with a bracket, a cylinder is installed on the top of the bracket, a moving mechanism is installed at the output end of the cylinder, a visual detector is installed at the bottom of the moving mechanism, and the two flipping mechanisms are symmetrically installed on both sides of the top of the carrying platform, the flipping mechanism includes a support plate installed to the top of the carrying platform, the inner side of the support plate is rotatably connected to a swing plate, and the outer side of the support plate is also installed with a power source for driving the swing plate to rotate, an electric push rod is installed on the inner side of the swing plate, and a clamping plate is installed on the end of the electric push rod away from the swing plate; wherein, the outer wall of the carrying platform is also installed with a driving mechanism for driving multiple rollers to rotate synchronously.

[0009] Furthermore, a connecting shaft is installed at the end of the swing plate, and the connecting shaft passes through the support plate and is rotatably connected to the support plate.

[0010] Furthermore, the power source includes a second motor and a worm gear, the second motor is mounted to the outer wall of the support plate, the worm gear is mounted to the end of the connecting shaft, a worm is mounted on the output end of the second motor, and the worm is meshed with the worm gear.

[0011] Furthermore, a pressure sensor is installed on the inner side wall of the clamping plate.

[0012] Furthermore, the bottom height of the clamping plate is slightly higher than the top height of the roller.

[0013] Furthermore, the driving mechanism includes a first motor mounted on the outer side wall of the supporting platform, a rotating shaft is mounted on the output end of the first motor, and a plurality of first pulleys are mounted on the outer side wall of the rotating shaft.

[0014] Furthermore, a second pulley is installed at one end of each of the plurality of rollers, and the plurality of second pulleys are respectively connected to the plurality of first pulleys through a plurality of synchronous belts.

[0015] Furthermore, a support block is installed on the outer side wall of the supporting platform, and the end of the rotating shaft away from the first motor is rotatably connected to the support block.

[0016] The beneficial effects of the present application are as follows: the present application provides a PCB board automatic testing type carrying platform, which clamps the PCB board with a clamping plate through a set electric push rod, and then uses a power source to control the two swing plates to rotate 180 degrees counterclockwise, thereby turning the PCB board over. Automatic operation is used to replace manual turning, reducing human operation, continuously testing both sides of the PCB board, shortening the overall test cycle, and being able to meet the testing needs of large quantities of PCB boards.

[0017] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0019] In the attached figure:

[0020] Figure 1 Schematic diagram of the overall structure;

[0021] Figure 2 It is a structural diagram of the roller and the driving mechanism;

[0022] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0023] Figure 4 It is a structural diagram of the flip mechanism;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the flip mechanism.

[0025] Among them, the reference numerals in the figures are:

[0026] 1. Carrying platform; 2. Roller; 3. Driving mechanism; 31. First motor; 32. Rotating shaft; 33. First pulley; 34. Synchronous belt; 35. Second pulley; 4. Flipping mechanism; 41. Support plate; 42. Second motor; 43. Worm; 44. Worm gear; 45. Swinging plate; 46. Clamping plate; 47. Electric push rod; 48. Connecting shaft; 5. Bracket; 6. Cylinder; 7. Moving mechanism; 8. Visual detector. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0029] like Figure 1-5 As shown, the present application provides a PCB board automatic test type carrying platform, including: a carrying platform 1 and two turning mechanisms 4, a plurality of rollers 2 are rotatably connected to the top of the carrying platform 1, and a bracket 5 is installed on the outer wall of the carrying platform 1, and the bracket 5 is fixed to the outer wall of the carrying platform 1 by means of bolts, a cylinder 6 is installed on the top of the bracket 5, and the cylinder 6 is fixed to the top of the bracket 5 by means of bolts, a moving mechanism 7 is installed on the output end of the cylinder 6, and the moving mechanism 7 is fixedly connected to the output end of the cylinder 6, and a visual detector 8 is installed on the bottom of the moving mechanism 7, and the visual detector 8 adopts the current existing technology, wherein the authorization announcement number: CN221100491U discloses a Bluetooth PCBA board automatic test type carrying platform, which has been disclosed in the scheme, Therefore, we will not go into details here. The two flipping mechanisms 4 are symmetrically installed on both sides of the top of the supporting platform 1. The flipping mechanism 4 includes a support plate 41 installed on the top of the supporting platform 1. The support plate 41 is fixed to the top of the supporting platform 1 by welding. The inner side of the support plate 41 is rotatably connected to the swing plate 45, and the outer side of the support plate 41 is also installed with a power source for driving the swing plate 45 to rotate. An electric push rod 47 is installed on the inner side of the swing plate 45, and the electric push rod 47 is fixed to the inner side of the swing plate 45 by bolts. A clamping plate 46 is installed on the end of the electric push rod 47 away from the swing plate 45, and the output end of the electric push rod 47 is fixedly connected to the clamping plate 46; wherein, the outer side wall of the supporting platform 1 is also installed with a driving mechanism 3 for driving multiple rollers 2 to rotate synchronously.

[0030] In this embodiment, double-sided PCBs typically have different circuit components, connection methods, and functional areas on each side. Testing both sides for defects can comprehensively detect problems in each part and ensure the normal operation of the entire PCB. This solution is used for equipment that provides support for PCBs and performs double-sided defect testing on PCBs.

[0031] Specifically, the PCB board to be tested is placed on the leftmost position of the roller 2, and the driving mechanism 3 is used to synchronously drive multiple rollers 2 to rotate, thereby driving the PCB board to move in the X-axis direction. When the PCB board moves to the bottom of the visual detector 8, the visual detector 8 is used to perform defect testing on the PCB board below. After the test on one side of the PCB board is completed, the driving mechanism 3 is used to drive multiple rollers 2 to rotate, so that the PCB board moves to the rightmost position, and then the flipping mechanisms 4 on both sides are driven to clamp and flip the PCB board. Specifically, the clamping plate 46 is clamped to the PCB board by the provided electric push rod 47, and then the power source is used to control the two swing plates 45 to rotate 180° counterclockwise, so that the PCB board is turned over, and the above operation is repeated. Automated operation is used instead of manual flipping, reducing human operation, continuously testing both sides of the PCB board, and shortening the overall test cycle.

[0032] In addition, after both sides of the PCB board on the roller 2 are tested, the driving mechanism 3 can be used to drive multiple rollers 2 to rotate to achieve the purpose of automatic unloading of the PCB board. A conveying device can be installed on the right side of the carrier 1. The unloaded PCB board falls on the conveying device and is then transported to the next processing step.

[0033] It should be noted that by utilizing the driving mechanism 3 to control multiple rollers 2 to rotate synchronously clockwise or counterclockwise, the movement of the PCB board in the X-axis direction can be controlled, and the provided cylinder 6 can drive the visual detector 8 to move in the Z-axis direction. In addition, the provided moving mechanism 7 is used to drive the visual detector 8 to move in the Y-axis direction. Specifically, it can be achieved by a motor-driven screw rod. By adopting the above technical solution, the purpose of the visual detector 8 to perform all-round testing of the PCB board can be achieved.

[0034] like Figure 4-5 As shown, a connecting shaft 48 is installed at the end of the swing plate 45, and the connecting shaft 48 is fixedly connected to the swing plate 45 by welding. The connecting shaft 48 passes through the support plate 41 and is rotatably connected to the support plate 41. The power source includes a second motor 42 and a worm gear 44. The second motor 42 is installed to the outer wall of the support plate 41, and the second motor 42 is fixed to the outer wall of the support plate 41 by bolts. The worm gear 44 is installed to the end of the connecting shaft 48, and the worm gear 44 is fixedly sleeved on the end of the connecting shaft 48. A worm 43 is installed at the output end of the second motor 42, and the worm 43 is fixedly connected to the output end of the second motor 42. The worm 43 is meshed with the worm gear 44.

[0035] In this embodiment, the second motor 42 is configured to control the rotation of the worm 43, and the meshing connection between the worm 43 and the worm wheel 44 drives the connecting shaft 48 and the swing plate 45 to rotate, thereby achieving the purpose of flipping the PCB board.

[0036] like Figure 4-5 As shown, a pressure sensor is installed on the inner wall of the clamping plate 46. In order to prevent the clamping force of the clamping plate 46 from being too large, a pressure sensor is provided. When the clamping force of the clamping plate 46 on the PCB board reaches a set threshold, an external controller is used to drive the electric push rod 47 to stop, thereby reducing the chance of damage to the PCB board.

[0037] like Figure 1 As shown, the bottom height of the clamping plate 46 is slightly higher than the top height of the drum 2 , which can ensure that the clamping plate 46 can clamp the PCB board on the top of the drum 2 .

[0038] like Figure 1-3As shown, the driving mechanism 3 includes a first motor 31 installed on the outer wall of the supporting platform 1, and the first motor 31 is fixed to the outer wall of the supporting platform 1 by bolts. A rotating shaft 32 is installed on the output end of the first motor 31, and the rotating shaft 32 is fixedly connected to the output end of the first motor 31. A plurality of first pulleys 33 are installed on the outer wall of the rotating shaft 32, and the first pulley 33 is fixedly sleeved on the outer wall of the rotating shaft 32. One end of each of the plurality of rollers 2 is installed with a second pulley 35, and the second pulley 35 is fixedly sleeved on the end of the roller 2. The plurality of second pulleys 35 are respectively connected to the plurality of first pulleys 33 through a plurality of synchronous belts 34 for transmission. A support block is installed on the outer wall of the supporting platform 1, and the support block is fixed to the outer wall of the supporting platform 1 by welding. The end of the rotating shaft 32 away from the first motor 31 is rotatably connected to the support block, which is used to provide support for the end of the rotating shaft 32 to improve stability.

[0039] In this embodiment, the first motor 31 is set to control the rotation of the rotating shaft 32, which synchronously drives the multiple first pulleys 33 on the outer wall to rotate. The transmission action of the synchronous belt 34 is utilized to drive the multiple rollers 2 to rotate synchronously, thereby achieving the purpose of transporting the PCB board on the roller 2.

[0040] It should be noted that a semi-cross belt transmission method is adopted between the first pulley 33 and the second pulley 35, wherein the rotating shaft 32 connected to the first pulley 33 and the roller 2 connected to the second pulley 35 are staggered in space, and the staggered angle is 90 degrees.

[0041] Working principle:

[0042] By placing the PCB board to be tested on the leftmost position of the roller 2, the driving mechanism 3 is used to synchronously drive multiple rollers 2 to rotate, thereby driving the PCB board to move in the X-axis direction. When the PCB board moves to the bottom of the visual detector 8, the visual detector 8 is used to perform defect testing on the PCB board below. After the test on one side of the PCB board is completed, the driving mechanism 3 is used to drive multiple rollers 2 to rotate, so that the PCB board moves to the rightmost position, and then the flipping mechanisms 4 on both sides are driven to clamp and flip the PCB board. Specifically, the electric push rod 47 is provided to clamp the PCB board. Then, the power source is used to control the two swing plates 45 to rotate 180° counterclockwise, thereby turning the PCB board over, and repeating the above operation.

[0043] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A PCB board automatic testing type carrying platform, characterized by: include: A carrying platform (1), wherein a plurality of rollers (2) are rotatably connected to the top of the carrying platform (1), a bracket (5) is installed on the outer side wall of the carrying platform (1), a cylinder (6) is installed on the top of the bracket (5), a moving mechanism (7) is installed at the output end of the cylinder (6), and a visual detector (8) is installed at the bottom of the moving mechanism (7); Two flipping mechanisms (4), the two flipping mechanisms (4) are symmetrically mounted on both sides of the top of the carrier platform (1), the flipping mechanism (4) comprises a support plate (41) mounted on the top of the carrier platform (1), the inner side of the support plate (41) is rotatably connected to a swing plate (45), and the outer side of the support plate (41) is also mounted with a power source for driving the swing plate (45) to rotate, the inner side of the swing plate (45) is mounted with an electric push rod (47), and the end of the electric push rod (47) away from the swing plate (45) is mounted with a clamping plate (46); The outer side wall of the support platform (1) is also provided with a driving mechanism (3) for driving the multiple rollers (2) to rotate synchronously.

2. The PCB automatic test type carrying platform according to claim 1, characterized in that: A connecting shaft (48) is installed at the end of the swing plate (45), and the connecting shaft (48) passes through the support plate (41) and is rotatably connected to the support plate (41).

3. The PCB automatic test type carrying platform according to claim 1, characterized in that: The power source includes a second motor (42) and a worm gear (44), wherein the second motor (42) is mounted to the outer wall of the support plate (41), and the worm gear (44) is mounted to the end of the connecting shaft (48). A worm (43) is mounted on the output end of the second motor (42), and the worm (43) is meshedly connected with the worm gear (44).

4. The PCB automatic test type carrying platform according to claim 1, characterized in that: A pressure sensor is installed on the inner side wall of the clamping plate (46).

5. The PCB automatic test type carrying platform according to claim 1, characterized in that: The bottom height of the clamping plate (46) is higher than the top height of the roller (2).

6. The PCB automatic testing type carrying platform according to claim 1, characterized in that: The driving mechanism (3) comprises a first motor (31) mounted on the outer side wall of the carrier platform (1); a rotating shaft (32) is mounted on the output end of the first motor (31); and a plurality of first pulleys (33) are mounted on the outer side wall of the rotating shaft (32).

7. The PCB automatic test type carrying platform according to claim 6, characterized in that: One end of each of the plurality of rollers (2) is provided with a second pulley (35), and the plurality of second pulleys (35) are respectively connected to the plurality of first pulleys (33) through a plurality of synchronous belts (34).

8. The PCB automatic test type carrying platform according to claim 6, characterized in that: A support block is installed on the outer side wall of the bearing platform (1), and one end of the rotating shaft (32) away from the first motor (31) is rotatably connected to the support block.

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