Circuit board automatic testing machine

Abstract

The utility model discloses an automatic testing machine for a circuit board, which comprises a machine body, a conveying assembly arranged on the machine body and used for conveying the circuit board, and a processing assembly and a bearing assembly which are sequentially arranged along the conveying direction of the circuit board, the machine body is provided with a transmission assembly matched with the bearing assembly, and the transmission assembly moves along with the circuit board along with the conveying assembly. And when the circuit boards are processed to the bearing assembly by the processing assembly, the bearing part of the bearing assembly moves under the extrusion of the weight of the stacked circuit boards on the bearing part and is in contact with the driving part in the transmission assembly, so that the circuit boards are separated from the bearing part under the pushing of the driving part. After the circuit boards are transferred to the bearing part on the bearing assembly, the bearing part moves in the direction of the transmission assembly along with increase of the stacking number of the circuit boards until the circuit boards on the bearing part make contact with the driving part, and the circuit boards on the bearing part are conveyed to other machining steps through rotation of the driving part.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to an automatic circuit board testing machine. Background Technology

[0002] An automatic circuit board tester is a device used to automate the inspection and testing of printed circuit boards (PCBs). Its main purpose is to ensure that the circuit boards meet design requirements and are free of defects during the manufacturing process.

[0003] After being tested by an automated testing machine, circuit boards need to be stacked and stored. However, the current storage method generally involves manual handling and transfer to the next step, which is a waste of human resources. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide an automatic circuit board testing machine, which solves the problem that after the existing circuit boards are tested by the automatic testing machine, they are stacked together and need to be manually removed and transferred to the next step.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic circuit board testing machine, comprising a machine body and a conveying assembly disposed on the machine body for conveying circuit boards, as well as a processing assembly and a carrying assembly arranged sequentially along the conveying direction of the circuit boards. The machine body is provided with a transmission assembly adapted to the carrying assembly. As the circuit board moves with the conveying assembly, when it is processed by the processing assembly to the carrying assembly, the load-bearing part of the carrying assembly moves under the pressure of the weight of the circuit boards stacked on it and contacts the driving part in the transmission assembly, so that the circuit board is separated from the load-bearing part under the push of the driving part.

[0006] Furthermore, the load-bearing component includes a groove on the body and an elastic element connected to the load-bearing part within the groove, with the connection between the load-bearing part and the elastic element inserted into the inner cavity of the groove.

[0007] Furthermore, the elastic element is a spring, and a positioning rod is inserted through the middle of the spring. The positioning rod is located in the middle of the slide groove, and the load-bearing part is sleeved with the positioning rod.

[0008] Furthermore, the elastic element is an elastic rope, which is located on the top wall of the chute and connected to the upper end face of the load-bearing part.

[0009] Furthermore, the load-bearing part is a horizontal plate, and a row of equally spaced openings are provided on the horizontal plate, with the openings corresponding to the drive part.

[0010] Furthermore, the drive unit is a roller, which can be made of rubber.

[0011] Furthermore, the transmission assembly includes a drive motor housed within the machine body, with the output end of the drive motor connected to the drive unit.

[0012] Furthermore, the conveying assembly includes sliding rods located on the left and right sides of the processing assembly and a robotic arm that slides on the sliding rods.

[0013] Furthermore, the processing components include an electric push rod mounted on the machine body and an extrusion detection plate installed at the output end of the electric push rod, with the output end of the extrusion detection plate corresponding to the worktable surface on the machine body.

[0014] Furthermore, the robotic arm is located above the worktable, and the extrusion detection plate is located above the robotic arm.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, after the circuit board is transferred to the load-bearing part of the bearing component, as the number of circuit boards increases, the load-bearing part moves towards the transmission component until the circuit board on the load-bearing part contacts the driving part. The circuit board on the load-bearing part is then transported to other processing steps by the rotation of the driving part.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of Embodiment 1 of this utility model.

[0018] Figure 2 This is a diagram illustrating the first supporting component of Embodiment 1 of this utility model.

[0019] Figure 3 This is a diagram illustrating the second supporting component of Embodiment 1 of this utility model.

[0020] Explanation of reference numerals in the attached diagram:

[0021] 10. Main body; 20. Conveying assembly; 21. Sliding rod; 22. Robotic arm;

[0022] 30. Processing components; 31. Electric push rod; 32. Extrusion detection plate;

[0023] 40 Load-bearing component, 41 load-bearing part, 411 opening, 42 slide groove, 43 elastic element, 431 positioning rod;

[0024] 50 Transmission assembly, 51 Drive unit, 52 Drive motor. Detailed Implementation

[0025] Please refer to Figure 1-3As shown, it illustrates the specific structure of a preferred first embodiment of the present invention, which is an automatic circuit board testing machine. It includes a machine body 10 and a conveying assembly 20 disposed on the machine body 10 for conveying circuit boards, as well as a processing assembly 30 and a carrying assembly 40 arranged sequentially along the circuit board conveying direction. The machine body 10 is provided with a transmission assembly 50 adapted to the carrying assembly 40. As the circuit board moves with the conveying assembly 20, when it is processed by the processing assembly 30 to the carrying assembly 40, the load-bearing part 41 of the carrying assembly 40 moves under the pressure of the weight of the circuit boards stacked on it and comes into contact with the driving part 51 in the transmission assembly 50, so that the circuit board is separated from the load-bearing part 41 under the push of the driving part 51. Compared to existing automatic circuit board testing machines, where the circuit boards tested by the processing component 30 are transferred to the support component 40 and then need to be manually removed, this automatic circuit board testing machine, after the circuit boards are transferred to the support component 40, moves the support component 40 towards the transmission component 50 as the number of circuit boards increases until the circuit boards on the support component 40 come into contact with the drive unit 51. The rotation of the drive unit 51 then transports the circuit boards on the support component 40 to other processing steps.

[0026] Specifically, untested circuit boards are stacked on the worktable of the machine body 10. They are picked up by the conveyor component 20 and driven to move to the processing component 30 for testing. After testing, they are transferred by the conveyor component 20 to the load-bearing part 41 in the bearing component 40. As the number of circuit boards tested by the processing component 30 increases, the number of circuit boards stacked on the load-bearing part 41 also increases. Because of the increase in the number of circuit boards, the weight applied to the load-bearing part 41 is greater, causing the load-bearing part 41 to gradually move downward until it contacts the drive part 51 on the transmission component 50. Note that the contact here refers to the contact between the bottom end of the stacked circuit board placed on the load-bearing part 41 and the drive part 51. Then the drive part 51 rotates, transporting the stacked circuit boards on the load-bearing part 41 to other processing steps. At this time, the load-bearing part 41 can be reset to receive new circuit boards because it is missing a circuit board.

[0027] like Figure 2As shown, for example, the load-bearing component 40 includes a groove 42 formed on the body 10 and an elastic member 43 disposed in the groove 42 and connected to the load-bearing part 41. The connection between the load-bearing part 41 and the elastic member 43 is inserted into the inner cavity of the groove 42. To facilitate the movement of the load-bearing part 41 as the number of circuit boards stacked on it increases, a slide 42 is provided on the machine body 10. The slide 42 is longitudinally provided, allowing the load-bearing part 41 to move up and down along the slide 42. When the load-bearing part 41 is located at the top of the slide 42, the circuit boards that have been inspected at the processing component 30 can be transferred to the load-bearing part 41 via the conveying component 20. At this time, each inspected circuit board on the processing component 30 will be placed on the circuit board as it is transferred by the conveying component 20. As the number of circuit boards stacked on the load-bearing part 41 increases, the load-bearing part 41 gradually moves from the top of the slide 42 to the bottom of the slide 42 and comes into contact with the drive part 51. This allows the drive part 51 to move the circuit boards stacked on the load-bearing part 41 and separate them from the load-bearing part 41. At this time, the elastic element 43 connected to the load-bearing part 41 can drive the load-bearing part 41 to move from the bottom of the slide 42 to the top of the slide 42.

[0028] like Figure 2 As shown, exemplarily, the elastic element 43 is a spring, and a positioning rod 431 is inserted through the middle of the spring. The positioning rod 431 is located in the middle of the slide groove 42, and the load-bearing part 41 is sleeved on the positioning rod 431. When the elastic element 43 is a spring, the spring has better elastic restoring ability and stronger compression resistance. Through the compression resistance of the spring, for each circuit board stacked on the load-bearing part 41 fixed to the spring, the load-bearing part 41 moves downward a portion, so that the circuit boards moved by the conveying assembly 20 can be stacked on top of the circuit boards on the load-bearing part 41, thereby facilitating the conveying assembly 20 to transport the newly inspected circuit boards to the load-bearing part 41.

[0029] In addition, the spring is sleeved on the positioning rod 431, and the positioning rod 431 prevents the spring from bending due to the compression of the load-bearing part 41.

[0030] like Figure 3 As shown, for example, the elastic element 43 is an elastic rope, which is disposed on the top wall of the slide 42 and connected to the upper end face of the load-bearing part 41. When the elastic element 43 is an elastic rope, the elastic rope has lower compressive strength than a spring, resulting in fewer circuit boards that can be stacked on the load-bearing part 41 and accelerating the conveying efficiency of the circuit boards.

[0031] like Figure 2 As shown, for example, the load-bearing part 41 is a horizontal plate, and a row of equally spaced openings 411 are provided on the horizontal plate, the openings 411 corresponding to the driving part 51. By providing openings 411 on the load-bearing part 41, the driving part 51 can pass through the openings 411 and contact the circuit board on the top of the load-bearing part 41, and drive the circuit board on the load-bearing part 41 to rotate as the driving part 51 rotates.

[0032] The drive unit 51 is a roller, which can be made of rubber. The rubber roller can increase the friction when in contact with the circuit board and move the circuit board away from the load-bearing part 41.

[0033] The transmission assembly 50 includes a drive motor 52 disposed inside the body 10. The output end of the drive motor 52 is connected to the drive unit 51, which is a roller. The output shaft of the drive motor 52 is inserted into the middle of the drive unit 51, so that the drive unit 51 can rotate with the drive motor 52.

[0034] like Figure 2 As shown, exemplarily, the conveying assembly 20 includes sliding rods 21 disposed on the left and right sides of the processing assembly 30 and a robotic arm 22 sliding on the sliding rods 21. The robotic arm 22 can pick up circuit boards on the machine body 10 as the sliding rods 21 move and convey them to various processing steps.

[0035] like Figure 2 As shown, exemplarily, the processing assembly 30 includes an electric push rod 31 mounted on the machine body 10, and a compression detection plate 32 mounted on the output end of the electric push rod 31. The output end of the compression detection plate 32 corresponds to the worktable surface 11 on the machine body 10. When the circuit board is picked up and moved below the compression detection plate 22 by the robot arm 22, the compression detection plate 22 moves down and contacts the circuit board as pushed by the electric push rod 31, thereby detecting whether the circuit board is damaged.

[0036] The robotic arm 22 is located on the upper part of the worktable 11, and the extrusion detection plate 32 is located on the upper part of the robotic arm 22.

[0037] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An automatic circuit board testing machine, comprising a body (10) and a conveying assembly (20) disposed on the body (10) for conveying circuit boards, and a processing assembly (30) and a carrying assembly (40) arranged sequentially along the circuit board conveying direction, characterized in that: The body (10) is provided with a transmission component (50) adapted to the bearing component (40). As the circuit board moves with the conveying component (20) and is processed by the processing component (30) to the bearing component (40), the load-bearing part (41) of the bearing component (40) moves under the pressure of the weight of the circuit board stacked on it and comes into contact with the driving part (51) in the transmission component (50), so that the circuit board is separated from the load-bearing part (41) under the push of the driving part (51).

2. The automatic circuit board testing machine according to claim 1, characterized in that: The load-bearing component (40) includes a groove (42) on the body (10) and an elastic member (43) connected to the load-bearing part (41) in the groove (42). The connection between the load-bearing part (41) and the elastic member (43) is inserted into the inner cavity of the groove (42).

3. The automatic circuit board testing machine according to claim 2, characterized in that: The elastic element (43) is a spring, and a positioning rod (431) is inserted through the middle of the spring. The positioning rod (431) is located in the middle of the slide groove (42), and the load-bearing part (41) is sleeved on the positioning rod (431).

4. The automatic circuit board testing machine according to claim 2, characterized in that: The elastic element (43) is an elastic rope, which is located on the top wall of the slide (42) and connected to the upper end face of the load-bearing part (41).

5. The automatic circuit board testing machine according to claim 2, characterized in that: The load-bearing part (41) is a horizontal plate, and a row of equally spaced openings (411) are provided on the horizontal plate, the openings (411) corresponding to the driving part (51).

6. The automatic circuit board testing machine according to claim 5, characterized in that: The drive unit (51) is a roller, which may be made of rubber.

7. The automatic circuit board testing machine according to claim 1, characterized in that: The transmission assembly (50) includes a drive motor (52) disposed in the body (10), and the output end of the drive motor (52) is connected to the drive unit (51).

8. The automatic circuit board testing machine according to claim 1, characterized in that: The conveying assembly (20) includes sliding rods (21) located on the left and right sides of the processing assembly (30) and a robotic arm (22) sliding on the sliding rods (21).

9. An automatic circuit board testing machine according to claim 8, characterized in that: The processing component (30) includes an electric push rod (31) mounted on the machine body (10) and an extrusion detection plate (32) mounted on the output end of the electric push rod (31), the output end of the extrusion detection plate (32) corresponding to the worktable surface (11) on the machine body (10).

10. An automatic circuit board testing machine according to claim 9, characterized in that: The robotic arm (22) is located on the upper part of the worktable (11), and the extrusion detection plate (32) is located on the upper part of the robotic arm (22).

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