A PCBA product automatic testing mechanism and its use method

Abstract

The present invention relates to the technical field of application of product automatic testing mechanism, specifically a PCBA product automatic testing mechanism and its use method, comprising a base and a turntable rotatably arranged on the base, the upper disk surface of the turntable is circumferentially arranged with four groups of clamping parts for fixing the product, and the four groups of clamping parts sequentially constitute a loading station, a first detection station, a second detection station and a unloading station; the present invention completes the detection of the product through the rotation cooperation between multiple stations, can accurately connect pins and holes, and improve the accuracy of product detection; at the same time, reduce manual participation, realize automatic operation, and effectively improve the efficiency of detection. Another object of the present invention is to provide a method for using the PCBA product automatic testing mechanism, so as to systematically improve the actual processing efficiency of the above-mentioned detection process.

Description

Technical Field

[0001] The present invention relates to the technical field of application of product automatic testing mechanism, in particular to a PCBA product automatic testing mechanism and a use method thereof. Background Art

[0002] PCBA product testing is to test the quality of the product and distinguish the quality of the product. The test is divided into two processes, one is to use ICT for testing, and the other is to use FCT for testing; in both testing processes, the pins on the ICT or FCT test pin board need to be inserted into the corresponding holes of the product.

[0003] At present, PCBA product testing adopts a multi-station flow test method. The ICT station operator can only take the product from the assembly line and put it into the ICT test end for testing. After the test, take out the product and put it on the assembly line to the FCT station; the FCT station operator puts the product into the FCT test end for testing, and takes it out and puts it on the assembly line after the test. During the inspection process, the pins and holes are manually connected. The manual docking method is highly dependent on the operator. Not only is the operating efficiency difficult to guarantee, but the operator also needs a high level of professionalism. The operator's professionalism is slightly poor, and the docking operation is slightly improper, resulting in the pins and holes not being completely connected neatly, and even causing problems such as pin bending and breakage, which affects the actual test results of the product and misleads the classification of the product. Summary of the invention

[0004] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a PCBA product automatic testing mechanism, which completes the detection of products through the rotation cooperation between multiple stations, can accurately connect pins and holes, and improve the accuracy of product detection; at the same time, it reduces manual participation, realizes automatic operation, and effectively improves the efficiency of detection. Another object of the present invention is to provide a method for using the PCBA product automatic testing mechanism, so as to systematically improve the actual processing efficiency of the above detection process.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A PCBA product automatic testing mechanism comprises a base and a turntable rotatably arranged on the base, wherein the upper disk surface of the turntable is provided with four groups of clamping parts for fixing the product along the circumferential direction, and the four groups of clamping parts sequentially constitute a loading station, a first detection station, a second detection station and a unloading station;

[0007] The loading station and the unloading station are both equipped with gripping components for picking up and placing materials. The first detection station is equipped with a first needle plate for detecting the ICT information of the product, and the second detection station is equipped with a second needle plate for detecting the FCT information of the product. The sides of the two sets of needle plates are equipped with feeding components for pushing the mounting plate into the corresponding detection position so that the pins on the corresponding needle plate are inserted into the connecting holes of the product to detect the product.

[0008] The clamping part includes a mounting plate with a horizontally arranged plate surface, and a mounting groove adapted to accommodate the product is recessed on the upper plate surface of the mounting plate; the pressure plate is hinged to the mounting plate through a torsion spring seat and its cantilever end is pressed against the top of the product under the action of torsion.

[0009] As a further solution of the present invention: a limit block is hinged on the torsion spring seat with a horizontally arranged hinge axis, the pressure plate is a rectangular plate-shaped structure, and a limit hole is concavely provided on the side of the pressure plate, the hole length direction of which is perpendicular to the hinge axis of the torsion spring seat, and the limit block is slidably arranged in the limit hole;

[0010] A material pressing telescopic rod with a telescopic path extending vertically is arranged above the pressing plate, and the working end of the material pressing telescopic rod can be pressed on the pressing end of the pressing plate from top to bottom; a limit plate is vertically arranged on the pressing end of the pressing plate, and the force application point of the material pressing telescopic rod gradually transitions from the pressing end to the limit plate during the downward pressing process, so that the pressing plate overcomes the torsion and tilts up before vertically descending;

[0011] A tension spring is arranged between the pressing plate and the mounting plate and cooperates with the material pressing telescopic rod to reset the pressing plate.

[0012] As a further solution of the present invention: an L-shaped support rod consisting of a horizontal rod and a vertical rod is arranged on the base, and the vertical rod is vertically fixed to the base, and the press telescopic rod is installed at the end of the horizontal rod; the working end of the press telescopic rod is fixed with a lower press rod, and the rotating shaft is rotatably arranged on the lower press rod, and the rotating axis of the rotating shaft and the hinge axis of the torsion spring seat are parallel to each other, so that the rotating shaft is pressed from top to bottom along the vertical direction on the pressing end of the pressing plate to make the cantilever end of the pressing plate tilt up and move downward vertically, and then take and place the product.

[0013] As a further solution of the present invention: guide rods with a long rod length extending vertically downward are fixedly connected to the four corners of the bottom of the mounting plate, the front end of the guide rod passes through a guide hole opened at the corresponding position of the turntable and forms a fixed fit with the baffle, a return spring is arranged between the baffle and the turntable, and the feeding telescopic rod in the feeding assembly pushes the baffle to produce a vertical reciprocating linear sliding action, thereby sending the mounting plate into the detection position.

[0014] As a further solution of the present invention: the telescopic path of the feeding telescopic rod is parallel to the moving path of the guide rod, and the feeding telescopic rod is arranged directly below the baffle, so that the working end of the feeding telescopic rod pushes the baffle from bottom to top in the vertical direction.

[0015] As a further solution of the present invention: a first fixed frame fixedly connected to the base is arranged at the first inspection station, the first needle plate is fixed on the first fixed frame, and the first needle plate is located directly above the product in the first inspection station; a second fixed frame fixedly connected to the base is arranged at the second inspection station, the second needle plate is fixed on the second fixed frame, and the second needle plate is located directly above the product in the second inspection station.

[0016] As a further solution of the present invention: a positioning sensor fixedly connected to the base is arranged in the loading station, the signal propagation path of the positioning sensor is vertically arranged from bottom to top, and corresponding light-transmitting holes for signal propagation are opened at the bottom of the mounting groove and the turntable; a code scanning sensor for reading the product code in the loading station is arranged on the support rod; the grabbing assembly is an external manipulator, and at least one group of grabbing sensors is arranged at the external manipulator to ensure that the external manipulator accurately grabs the product, and a rotating shaft is coaxially fixedly connected to the bottom of the turntable, and the rotating shaft and the output shaft of the driving motor form a transmission match.

[0017] As a further solution of the present invention: positioning pins are symmetrically arranged on both sides of the pressing end of the pressing plate, and hanging ears are correspondingly arranged on the mounting plate, and the tension spring is connected between the positioning pins and the hanging ears.

[0018] As a further solution of the present invention: the lower pressure rod is an inverted L-shaped rod structure composed of a horizontal rod and a vertical rod, wherein the horizontal plate is fixedly fitted with the telescopic end of the press telescopic rod, and the rotating shaft is arranged at the bottom of the vertical rod and is located directly above the pressing end of the pressure plate; an avoidance hole is provided on the turntable for the rotating shaft to pass through while moving along its own moving path so that the rotating shaft can drive the pressure plate to perform a vertical downward movement.

[0019] A method of using the above test mechanism comprises the following steps:

[0020] S1, loading operation: first, press the pressing plate down through the rotating shaft to make the cantilever end of the pressing plate tilt up; use the external robot arm to suck the product and put it into the installation slot, and the positioning sensor detects whether the product is placed in the installation slot; after confirming that the product is placed, send a code scanning trigger signal to the code scanning sensor, and the code scanning sensor scans the identification code on the product and uploads the obtained product information to the system; the rotating shaft rises, the pressing plate resets and covers the product, and sends a signal to the drive motor at the same time, and the turntable rotates a quarter of a circle to the first detection station;

[0021] S2, inspection operation at the first inspection station: the feeding telescopic rod pushes the mounting plate to the inspection position of the first needle plate from bottom to top, and the first needle plate is connected to the product through the probe for testing; after the test, the test information is uploaded and saved to the corresponding product storage file, the feeding telescopic rod descends, and the mounting plate returns to the initial position on the turntable, and at the same time sends a signal to the drive motor, and the turntable rotates a quarter of a turn to the second inspection station;

[0022] S3, inspection operation at the second inspection station: the feeding telescopic rod pushes the mounting plate to the inspection position of the second needle plate from bottom to top, and the second needle plate is connected to the product through a probe for testing; after the test, the test information is uploaded and saved to the corresponding product storage file, the feeding telescopic rod descends, and the mounting plate returns to the initial position on the turntable, and at the same time sends a signal to the drive motor, and the turntable rotates a quarter of a turn to the material return station;

[0023] S4, material return operation: the shaft is pressed down to open the pressure plate, and at the same time the system collects statistical product test information to determine whether it is a good product or a defective product. The robot arm takes the product out of the mounting plate and puts it into the corresponding good product tray or defective product tray.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention adopts a multi-station rotation method to realize product loading, ICT information detection, FCT information detection and unloading, which is quick and convenient; this multi-station rotation operation method replaces the original manual method of inserting the needle plate pins into the connecting holes on the product, and can accurately detect the corresponding information, avoid pin breakage or failure to insert into the corresponding connecting holes, and improve the efficiency of information detection. The product is fixed by the installation groove, and the stability of the product fixation can be improved under the action of the installation groove. Under the action of the pressure plate, the product can be stably pressed in the installation groove; and it can ensure that the stability of the product is always maintained during the operation of the turntable, providing reliable conditions for subsequent detection. Under the coordinated operation of the grabbing assembly and the four stations, the automatic loading and unloading and detection of the product are realized, which greatly improves the work efficiency.

[0026] 2. A limit block is hinged on the torsion spring seat, and a limit hole that can form a sliding fit with the limit block is provided on the pressure plate, which can realize the fixed axis rotation of the pressure plate around the hinge axis and also produce a sliding action to shorten the length of the cantilever end. Under the joint action of these two actions, the length of the pressure plate on the upper disk of the turntable can be shortened to avoid collision between the pressure plate and the manipulator during operation. Positioning pins are symmetrically arranged on both sides of the pressing end of the pressure plate, and corresponding lugs are arranged on the mounting plate, and the tension spring is connected between the positioning pins and the lugs. During operation, after the product is placed in the mounting groove, the pressure plate turns to the product under the action of the torsion of the torsion spring seat, so that the cantilever end of the pressure plate is pressed against the product; and in the process of rotation, the tension spring pulls the pressure plate to move, thereby moving the cantilever end of the pressure plate toward the center of the product, increasing the distance between the pressure point and the hinge axis, and improving the stability of product compression. An avoidance hole is provided on the turntable for the shaft to pass through along its own moving path, so that the shaft can drive the pressure plate to perform a vertical downward movement.

[0027] 3. The present invention sets the needle plate just above the product at the corresponding workstation, and then uses the action of the feeding telescopic rod to deliver the product to the predetermined detection position; in this process, only the movement in the vertical direction is generated, which reduces the complexity of the movement path and thus improves the stability of the pushing process; and there are many types of feeding telescopic rods that can generate such vertical direction movement, such as telescopic cylinders, electric push rods, etc., which reduces the production cost of the device.

[0028] 4. The four guide rods set at the bottom of the mounting plate can improve the guiding stability and accuracy, and prevent the mounting plate from shaking or moving path deviation during plumb movement, which will cause the product to be unable to accurately dock with the needle plate.

[0029] 5. The setting of the L-shaped lower pressure rod can make the rotating shaft drop down along the vertical line through the avoidance hole under the action of the lower pressure rod vertical rod, and at the same time reduce the opening area of ​​the avoidance hole. The support rod and the lower pressure rod are both set in L shape, which can effectively avoid the components on the side, thereby achieving the corresponding support effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the clamping part in the present invention.

[0032] Figure 3 It is a schematic diagram of the split structure of the clamping part in the present invention.

[0033] Figure 4 It is a schematic diagram of the shaft side structure of the present invention.

[0034] Figure 5 It is a schematic structural diagram of the turntable of the present invention.

[0035] In the figure:

[0036] 10. base; 11. turntable; 111. guide hole; 112. light-transmitting hole; 113. avoidance hole;

[0037] 12. driving motor; 13. supporting rod; 131. material pressing telescopic rod; 132. pressing rod;

[0038] 133, rotating shaft; 134, code scanning sensor; 14, first fixing frame; 141, first needle plate;

[0039] 15. Second fixing frame; 151. Second needle plate; 16. Positioning sensor; 17. Feeding telescopic rod;

[0040] 20. Clamping part; 21. Mounting plate; 211. Mounting groove; 212. Pressing plate; 2121. Limiting hole;

[0041] 2122, limiting piece; 2123, positioning pin; 213, torsion spring seat; 2131, limiting block;

[0042] 214, hanging ear; 2141, tension spring; 22, guide rod; 23, baffle; 24, return spring. DETAILED DESCRIPTION

[0043] 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, not all of the embodiments. 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.

[0044] See also Figure 1 and Figure 4 As shown, the mechanism mainly includes a base 10 and a turntable 11 rotatably arranged on the base 10, and the upper disk surface of the turntable 11 is circumferentially arranged with four groups of clamping parts 20 for fixing the product, and the four groups of clamping parts 20 sequentially constitute a loading station, a first detection station, a second detection station and an unloading station.

[0045] The base 10 for supporting is arranged on the ground, a support frame is arranged on the base 10, a turntable 11 is arranged above the support frame, and the coaxially arranged on the lower disk surface of the turntable 11 rotates through the support frame, thereby making the turntable 11 rotate on the support frame. A driving motor 12 that cooperates with the rotating shaft is also arranged on the base 10. The driving motor 12 and the rotating shaft can be matched by gear transmission, belt transmission or chain transmission. There are various ways of matching, as long as the turntable 11 can be driven to rotate.

[0046] See also Figure 2 , Figure 3 and Figure 5 As shown, the clamping part 20 includes a mounting plate 21 with a horizontally arranged plate surface, and a mounting groove 211 with a shape adapted to the product to accommodate the product is recessed on the upper plate surface of the mounting plate 21. A torsion spring seat 213 with a horizontally extending hinge axis is also arranged on the mounting plate 21, and a limit block 2131 is hinged on the torsion spring seat 213. The pressing plate 212 of a rectangular plate structure forms a sliding fit with the limit block 2131. The side of the pressing plate 212 is recessed with a limit hole 2121 whose hole length direction is perpendicular to the hinge axis of the torsion spring seat 213. The limit block 2131 is slidably arranged in the limit hole 2121, so that the pressing plate 212 can rotate synchronously with the limit block 2131, and can also produce a relative sliding action with the limit block 2131 along the hole length direction, thereby changing the length of the cantilever end of the pressing plate 212. Positioning pins 2123 are symmetrically arranged on both sides of the pressing end of the pressing plate 212, and correspondingly, hanging ears 214 are arranged on the mounting plate 21, and tension springs 2141 are connected between the positioning pins 2123 and the hanging ears 214. During operation, after the product is placed in the mounting slot 211, the pressing plate 212 is turned toward the product under the torsion of the torsion spring seat 213, so that the cantilever end of the pressing plate 212 is pressed against the product; and in the process of rotation, the tension spring 2141 pulls the pressing plate 212 to move, thereby moving the cantilever end of the pressing plate 212 toward the center of the product, increasing the distance between the pressure point and the hinge axis, and improving the stability of product pressing.

[0047] An L-shaped support rod 13 composed of a horizontal rod and a vertical rod is arranged on the base 10, and the vertical rod of the support rod 13 is fixedly connected to the base 10 vertically, and a material pressing telescopic rod 131 with a telescopic path extending vertically is installed at the end of the horizontal rod of the support rod 13. A lower pressing rod 132 is fixedly connected to the working end of the material pressing telescopic rod 131, and the lower pressing rod 132 is also an inverted L-shaped rod-shaped structure composed of a horizontal rod and a vertical rod. The horizontal plate of the lower pressing rod 132 and the telescopic end of the material pressing telescopic rod 131 form a fixed fit; the rotating shaft 133 is arranged at the bottom of the vertical rod of the lower pressing rod 132 and is located directly above the pressing end of the pressing plate 212, and the rotation axis of the rotating shaft 133 and the hinge axis of the torsion spring seat 213 are parallel to each other. The turntable 11 is provided with an avoidance hole 113 for the rotating shaft 133 to pass through along its own moving path, so that the rotating shaft 133 can drive the pressing plate 212 to move vertically downward.

[0048] A limit plate 2122 is vertically arranged on the pressing end of the pressing plate 212, so that the pressing end of the pressing plate 212 forms an L-shaped pressing space. During the downward pressing process of the material pressing telescopic rod 131, the rotating shaft 133 first presses on the pressing plate 212, so that the cantilever end of the pressing plate 212 tilts up; then the force application point gradually transitions from the pressing end to the limit plate 212, so that the pressing plate 212 overcomes the torsion and tilts up, and then passes through the avoidance hole 113 and moves downward vertically, so that the length of the pressing plate 212 above the turntable 11 can be shortened, and the excessively long upper end of the pressing plate 212 can be prevented from interfering with other components during the working process.

[0049] A material grabbing assembly is arranged beside the loading station. The material grabbing assembly adopts an external manipulator, and at least one group of grabbing sensors are arranged at the external manipulator to ensure that the external manipulator accurately grabs the product and puts it into the installation slot 211 or takes the product out of the installation slot 211. A positioning sensor 16 fixed to the base 10 is also arranged at the loading station. The signal propagation path of the positioning sensor 16 is vertically arranged from bottom to top, and the bottom of the installation slot 211 and the turntable 11 are correspondingly provided with light-transmitting holes 112 for signal propagation; a code scanning sensor 134 for reading the product code in the loading station is arranged on the support rod 13.

[0050] A guide rod 22 with a rod length extending vertically downward is fixedly connected to the four corners of the bottom of the mounting plate 21. The front end of the guide rod 22 passes through a guide hole 111 provided at a corresponding position of the turntable 11 and forms a fixed fit with a baffle 23 provided below the turntable 11. In order to keep the mounting plate 21 stable during the rotation of the turntable 11, a return spring 24 is arranged between the baffle 23 and the turntable 11. Under the action of the return spring 24, the mounting plate 21 is tightened on the upper plate surface of the turntable 11.

[0051] The first inspection station is provided with a first fixing frame 14 fixed to the base 10, and a first needle plate 141 is provided on the first bracket, and the first needle plate 141 is located directly above the product in the first inspection station. A feeding telescopic rod 17 with a telescopic path extending vertically is provided at the bottom of the baffle plate 23 in the first inspection station, and the feeding telescopic rod 17 can lift the baffle plate 23 from bottom to top along the vertical direction, thereby lifting the product to the corresponding inspection position so that the pins on the corresponding needle plate are inserted into the connecting holes of the product, and then the product is inspected.

[0052] The second inspection station is provided with a second fixing frame 15 fixed to the base 10, and a second needle plate 151 is provided on the second bracket, and the second needle plate 151 is located directly above the product in the second inspection station. A feeding telescopic rod 17 with a telescopic path extending vertically is also provided at the bottom of the baffle plate 23 in the second inspection station, and the feeding telescopic rod 17 can lift the baffle plate 23 from bottom to top along the vertical direction, thereby lifting the product to the corresponding inspection position so that the pins on the corresponding needle plate are inserted into the connecting holes of the product, and then the product is inspected.

[0053] The specific usage includes the following steps:

[0054] S1, loading operation: first, press the pressing plate 212 downward through the rotating shaft 133 to tilt the cantilever end of the pressing plate 212; use the external robot arm to suck the product into the installation slot 211, and the positioning sensor 16 detects whether the product is placed in the installation slot 211. After confirming that the product is placed, send a code scanning trigger signal to the code scanning sensor 134, and the code scanning sensor 134 scans the identification code on the product and uploads the obtained product information to the system. The rotating shaft 133 rises, the pressing plate 212 resets and covers the product, and sends a signal to the drive motor 12 at the same time, and the turntable 11 rotates a quarter of a circle to the first detection station.

[0055] S2, first inspection station inspection operation: the feeding telescopic rod 17 pushes the mounting plate 21 to the inspection position of the first needle plate 141 from bottom to top, and the first needle plate 141 is connected to the product through a probe for testing. After the test, the test information is uploaded and saved to the corresponding product storage file, the feeding telescopic rod 17 descends, the mounting plate 21 returns to the initial position on the turntable 11, and a signal is sent to the drive motor 12, and the turntable 11 rotates a quarter of a turn to the second inspection station.

[0056] S3, the second inspection station inspection operation: the feeding telescopic rod 17 pushes the mounting plate 21 to the inspection position of the second needle plate 151 from bottom to top, and the second needle plate 151 is connected to the product through the probe for testing. After the test, the test information is uploaded and saved to the corresponding product storage file, the feeding telescopic rod 17 descends, the mounting plate 21 returns to the initial position on the turntable 11, and sends a signal to the drive motor 12, and the turntable 11 rotates a quarter of a turn to the material return station.

[0057] S4, material return operation: the rotating shaft 133 is pressed down to open the pressing plate 212, and at the same time the system collects statistical product test information to determine whether it is a good product or a defective product. The robot arm takes out the product from the mounting plate 21 and puts it into the corresponding good product tray or defective product tray.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCBA product automatic testing mechanism, characterized in that: The invention comprises a base (10) and a turntable (11) rotatably arranged on the base (10); the upper disk surface of the turntable (11) is evenly arranged along the circumferential direction with four groups of clamping parts (20) for fixing the product; the four groups of clamping parts (20) sequentially constitute a loading station, a first detection station, a second detection station and a unloading station; the loading station and the unloading station are both arranged with a gripping assembly for taking and placing materials; the first detection station is arranged with a first needle plate (141) for detecting the ICT information of the product; the second detection station is arranged with a first needle plate (141) for detecting the ICT information of the product; A second needle plate (151) for detecting the FCT information of the product is arranged at the second detection station, and a feeding assembly is arranged on the sides of the two sets of needle plates to push the mounting plate (21) into the corresponding detection position so that the pins on the corresponding needle plate are inserted into the connecting holes of the product and the product is detected; the clamping part (20) comprises a mounting plate (21) with a horizontally arranged plate surface, and a mounting groove (211) adapted to accommodate the product is concavely arranged on the upper plate surface of the mounting plate (21); a pressing plate (212) The torsion spring seat (213) is hinged on the mounting plate (21) and its cantilever end is pressed against the top of the product under the action of torsion force; a limit block (2131) is hinged on the torsion spring seat (213) whose hinge axis is arranged horizontally; the pressing plate (212) is a rectangular plate-shaped structure; a limit hole (2121) whose hole length direction is perpendicular to the hinge axis of the torsion spring seat (213) is concavely provided on the side surface of the pressing plate (212); the limit block (2131) is slidably arranged in the limit hole (2121) ); a material pressing telescopic rod (131) extending vertically along a telescopic path is arranged above the pressing plate (212); the working end of the material pressing telescopic rod (131) can be pressed from top to bottom on the pressing end of the pressing plate (212); a limiting plate (2122) is arranged vertically on the pressing end of the pressing plate (212); the force application point of the material pressing telescopic rod (131) during the downward pressing process gradually transitions from the pressing end to the limiting plate (2122), so that the pressing plate (212) overcomes the torsion and tilts up before vertically descending; A tension spring (2141) is arranged between the pressing plate (212) and the mounting plate (21) to cooperate with the pressing telescopic rod (131) to reset the pressing plate (212); an L-shaped support rod (13) consisting of a horizontal rod and a vertical rod is arranged on the base (10), and the vertical rod is vertically fixed to the base (10), and the pressing telescopic rod (131) is installed on the end of the horizontal rod; the working end of the pressing telescopic rod (131) is fixed to the lower pressing rod (132), and the rotating shaft (133) is rotatably arranged on the lower pressing rod (132), and the rotating axis of the rotating shaft (133) and the hinge axis of the torsion spring seat (213) are parallel to each other, so that the rotating shaft (133) is pressed from top to bottom along the vertical direction on the pressing end of the pressing plate (212) to make the cantilever end of the pressing plate (212) tilt up and vertically move downward, thereby taking and placing the product.

2. A PCBA product automatic testing mechanism according to claim 1, characterized in that: Guide rods (22) having a length extending vertically downward are fixedly connected to the four corners of the bottom of the mounting plate (21); the front end of the guide rod (22) passes through a guide hole (111) provided at a corresponding position of the turntable (11) and forms a fixed fit with the baffle plate (23); a return spring (24) is arranged between the baffle plate (23) and the turntable (11); the feeding telescopic rod (17) in the feeding assembly pushes the baffle plate (23) to generate a vertical reciprocating linear sliding action, thereby feeding the mounting plate (21) into the detection position.

3. A PCBA product automatic testing mechanism according to claim 2, characterized in that: The telescopic path of the feeding telescopic rod (17) and the moving path of the guide rod (22) are parallel to each other, and the feeding telescopic rod (17) is arranged directly below the baffle plate (23) so that the working end of the feeding telescopic rod (17) can push the baffle plate (23) from bottom to top in a vertical direction.

4. A PCBA product automatic testing mechanism according to claim 3, characterized in that: A first fixed frame (14) fixedly connected to the base (10) is arranged at the first inspection station, the first needle plate (141) is fixed on the first fixed frame (14), and the first needle plate (141) is located directly above the product in the first inspection station; a second fixed frame (15) fixedly connected to the base (10) is arranged at the second inspection station, the second needle plate (151) is fixed on the second fixed frame (15), and the second needle plate (151) is located directly above the product in the second inspection station.

5. A PCBA product automatic testing mechanism according to claim 4, characterized in that: A positioning sensor (16) fixedly connected to a base is arranged in the loading station, and a signal transmission path of the positioning sensor (16) is arranged vertically from bottom to top, and light-transmitting holes (112) for signal transmission are correspondingly provided at the bottom of the mounting slot (211) and the turntable (11); a code scanning sensor (134) for reading a product code in the loading station is arranged on the support rod (13); the grasping assembly is an external manipulator, and at least one group of grasping sensors is arranged at the external manipulator to ensure that the external manipulator grasps the product accurately, and a rotating shaft is coaxially fixedly connected to the bottom of the turntable (11), and the rotating shaft and the output shaft of the drive motor (12) form a transmission match.

6. A PCBA product automatic testing mechanism according to claim 5, characterized in that: Positioning pins (2123) are symmetrically arranged on both sides of the pressing end of the pressing plate (212), and hanging ears (214) are correspondingly arranged on the mounting plate (21), and the tension spring (2141) is connected between the positioning pins (2123) and the hanging ears (214).

7. A PCBA product automatic testing mechanism according to claim 6, characterized in that: The lower pressing rod (132) is an inverted L-shaped rod structure consisting of a horizontal rod and a vertical rod, wherein the horizontal plate is fixedly connected with the telescopic end of the material pressing telescopic rod (131), and the rotating shaft (133) is arranged at the bottom of the vertical rod and is located directly above the pressing end of the pressing plate (212). The rotating disk (11) is provided with an avoidance hole (113), and the rotating shaft (133) passes through the avoidance hole (113) along its own moving path, so that the rotating shaft (133) drives the pressing plate (212) to perform a vertical downward movement.

8. A method of using the testing device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, loading operation: first, the pressing plate (212) is pressed down by the rotating shaft (133) so that the cantilever end of the pressing plate (212) is tilted; the product is sucked into the installation slot (211) by using an external manipulator, and the positioning sensor (16) detects whether the product is placed in the installation slot (211); after confirming that the product is placed, a code scanning trigger signal is sent to the code scanning sensor (134), and the code scanning sensor (134) scans the identification code on the product and uploads the obtained product information to the system; the rotating shaft (133) rises, and the pressing plate (212) is reset and pressed on the product, and a signal is sent to the driving motor (12) at the same time, and the turntable (11) rotates a quarter of a turn to the first detection station; S2, detection operation at the first detection station: the feeding telescopic rod (17) pushes the mounting plate (21) from bottom to top to the detection position of the first needle plate (141), and the first needle plate (141) is connected to the product through a probe for testing; after the test, the test information is uploaded and saved in the corresponding product storage file, the feeding telescopic rod (17) descends, and the mounting plate (21) returns to the initial position on the turntable (11), and at the same time sends a signal to the drive motor (12), and the turntable (11) rotates a quarter of a turn to the second detection station; S3, inspection operation at the second inspection station: the feeding telescopic rod (17) pushes the mounting plate (21) from bottom to top to the inspection position of the second needle plate (151), and the second needle plate (151) is connected to the product through a probe for testing; after the test, the test information is uploaded and saved in the corresponding product storage file, the feeding telescopic rod (17) descends, and the mounting plate (21) returns to the initial position on the turntable (11), and at the same time sends a signal to the drive motor (12), and the turntable (11) rotates a quarter of a turn to the material return station; S4, material return operation: the rotating shaft (133) is pressed down to open the pressing plate (212), and at the same time, the system collects statistical product test information to determine whether it is a good product or a defective product. The external robot takes out the product from the mounting plate (21) and places it in the corresponding good product tray or defective product tray.

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