Circuit board automatic pick-and-place test machine

Abstract

The invention, which relates to the technical field of circuit board testing, discloses an automatic circuit board pick-and-place testing machine comprising a detection table, a control panel fixedly connected to the outer side of the detection table, a partition plate fixedly connected to the top of the detection table, an electric telescopic rod fixedly connected to the top of the inner side of the partition plate, and a flat plate fixedly connected to the lower end of the electric telescopic rod. The top of the detection table is slidably connected with a movable plate, the bottom of the flat plate is provided with an impact assembly, the outer side of the movable plate is provided with an automatic pick-and-place assembly, and the top of the movable plate is provided with a clamping and limiting assembly. In the process of replacing the circuit board, the circuit board is not limited by the partition plate or blocked by the impact assembly in the partition plate, the replacement work of the circuit board can be rapidly completed in a short time, the interval time of circuit board detection is shortened, the continuity of the detection work is improved, and then the efficiency of the circuit board detection work is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board testing, in particular to an automatic pick-and-place testing machine for circuit boards. Background Art

[0002] The circuit board impact test is a test method to evaluate the reliability of the circuit board when it is impacted by external force. This test usually uses an impactor, places the circuit board under the impactor, and then uses a certain force to impact the circuit board to observe whether it is damaged or deformed. Through the impact test, the problems that may occur when the circuit board is subjected to impact force can be discovered, so that measures can be taken in advance to repair or improve it and improve the reliability of the product.

[0003] In the prior art, the impactor used in the impact test usually needs to be installed on the inner top of the closed test space, and the circuit boards used in some fine electrical appliances are small in size, and the required test space is relatively small. In order to ensure the accuracy of the impact test, it is necessary to perform multiple sampling tests on the same batch of circuit boards. After completing the test of a circuit board, the staff needs to manually take out the circuit board placed at the bottom of the impactor. Since the test space is relatively small, the impactor and the fixing seat for detection are installed in the test space, which will cause great inconvenience to the placement of the circuit board, and it will take a long time in the step of replacing the circuit board, affecting the continuity of the circuit board detection work, resulting in reduced circuit board detection efficiency.

[0004] Circuit boards usually use glass fiber reinforced epoxy resin as the substrate, which has the advantages of high strength and good rigidity. Circuit boards will inevitably bend under continuous impact, and the impacted part of the circuit board will be concave. Since the circuit board does not have ductility, its two ends will move closer to the middle of the circuit board during the bending process. During the test, the two ends of the circuit board are usually clamped and fixed. In order to provide space for the circuit board to sag downward, the middle part of the circuit board is suspended. If the bending angle of the circuit board is large, it will cause the circuit board to fall from the clamping base, resulting in the circuit board impact test cannot be carried out normally.

[0005] Therefore, a circuit board automatic pick-and-place test machine is proposed. Summary of the invention

[0006] The object of the present invention is to provide a circuit board automatic pick-and-place test machine to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit board automatic pick-up and placement test machine, comprising a test table, a control panel is fixedly connected to the outside of the test table, a partition is fixedly connected to the top of the test table, an electric telescopic rod is fixedly connected to the top of the inner side of the partition, a flat plate is fixedly connected to the lower end of the electric telescopic rod, a movable plate is slidably connected to the top of the test table, an impact assembly is arranged at the bottom of the flat plate, an automatic pick-up and placement assembly is arranged on the outside of the movable plate, and a clamping limit assembly is arranged on the top of the movable plate;

[0008] The automatic pick-and-place assembly is used for quickly replacing the circuit board for testing, and the clamping and limiting assembly is used to prevent the circuit board from being displaced during the impact test.

[0009] Preferably, the automatic pick-and-place assembly includes a straight groove opened on the outer wall of a flat plate, a straight rod is slidably connected inside the straight groove of the flat plate, a first limit plate corresponding to the position of the straight rod is fixedly connected to the top of the movable plate, a second limit plate is fixedly connected to the top of the detection table, and limit grooves are opened on the first limit plate and the second limit plate, and the straight rod is slidably connected inside the limit groove.

[0010] Preferably, the clamping and limiting assembly includes a pad block fixedly connected to the top of the movable plate, a clamping sleeve is fixedly connected to the side of the movable plate close to the pad block, an adjusting rod is slidably connected inside the clamping sleeve, a connecting rod is fixedly connected to the side of the adjusting rod close to the first limiting rod, an end of the connecting rod close to the pad block is fixedly connected to a splint, a screw rod is threadedly connected to the top of the splint, a slider is rotatably connected to the lower end of the screw rod, a sliding groove matching the slider is provided inside the splint, and a pressure plate is fixedly connected to the side of the slider away from the splint.

[0011] Preferably, the impact assembly includes a driving motor fixedly connected to the bottom of the flat plate, a turntable is fixedly connected to the output shaft of the driving motor, a vertical plate is fixedly connected to the outer wall of the flat plate, and an impact rod is slidably connected to a side of the vertical plate close to the turntable.

[0012] Preferably, an eccentric block is fixedly connected to one side of the turntable close to the impact rod, a transverse groove matching the eccentric block is opened in the middle of the impact rod, a buffer pad is covered on the lower end of the impact rod, and a protective cover is fixedly connected to the outer side of the flat plate.

[0013] Preferably, a side of the adjusting rod close to the cushion block is arranged as an inclined surface, a return spring is fixedly connected between the adjusting rod and the clamping sleeve, and a side rod corresponding to the position of the adjusting rod is fixedly connected to the outer side of the impact rod.

[0014] Preferably, two corner baffles are fixedly connected to the top of the cushion block, and a notch is formed on one side of the corner baffle close to the adjusting rod.

[0015] Preferably, the top of the screw rod is fixedly connected to a fixed shaft, the outer side of the fixed shaft is rotatably connected to a storage plate, the screw rod is made of ferroalloy, the side of the storage plate close to the screw rod is fixedly connected to a magnet sheet, and the outer side of the storage plate is fixedly connected to a protrusion.

[0016] Preferably, a sleeve is fixedly connected to the side of the turntable close to the driving motor, a sleeve rod adapted to the sleeve is fixedly connected to the output shaft of the driving motor, a clamping groove is provided on the outer wall of the sleeve rod, a avoidance spring is fixedly connected inside the clamping groove, and a clamping block is fixedly connected to the side of the avoidance spring close to the sleeve.

[0017] Preferably, an embedding groove corresponding to the position of the clamping block is provided on the inner side of the sleeve, and a side of the clamping block close to the embedding groove is arranged as an inclined surface.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting up automatic pick-and-place components, the inspection personnel can replace the circuit board outside the partition. In the process of replacing the circuit board, they will not be restricted by the partition and blocked by the impact components inside the partition. The replacement of the circuit board can be completed quickly in a short time, shortening the interval between circuit board inspections, improving the continuity of the inspection work, and thus improving the efficiency of circuit board inspections;

[0020] 2. The movement of the adjustment rod will drive the clamping plate to move away from the impact rod. At this time, the movement of the clamping plate can cause horizontal pulling force on the circuit board, which can straighten the circuit board that is bent after the impact, and can effectively prevent the circuit board from falling out of the moving clamping plate after excessive bending, so that the circuit board is in a stable placement state during the detection process, which can effectively reduce the number of times the detection personnel stop the machine to adjust the circuit board, which is conducive to the continuous and stable detection work;

[0021] 3. The storage plate can be attached to the top of the screw through the magnet sheet fixed at the bottom, and the storage plate is fixed with a bump on the outside. The inspector can pry up the storage plate from the top of the screw through the bump. Through the vertical storage plate, the inspector can rotate the small screw without the help of tools, which reduces the difficulty of replacing the circuit board for the inspector;

[0022] 4. When the turntable encounters greater resistance when rotating, the clamping block originally clamped in the embedded slot will be subjected to greater side pressure. The clamping block moves toward the inside of the clamping slot and compresses the avoidance spring. At this time, the clamping block will come out of the embedded slot, and the sleeve rod will be disconnected from the sleeve. At this time, the rotation of the sleeve rod will not drive the sleeve to rotate, which can effectively avoid the drive motor from being stuck and overloaded, protect the drive motor, reduce the loss of the drive motor during use, and extend the service life of the drive motor. The protective cover can provide external protection for the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0025] Figure 3 This is a schematic diagram of the internal structure of the partition of the present invention;

[0026] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 5 It is a schematic diagram of the vertical section structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged structural diagram at C in the middle;

[0029] Figure 7 For the present invention Figure 5 The enlarged structural diagram at D in the middle;

[0030] Figure 8 For the present invention Figure 7 The enlarged structural diagram at E in the middle;

[0031] Fig. 9 It is a schematic diagram of the cross-sectional structure of the present invention;

[0032] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at F in the middle.

[0033] In the figure:

[0034] 1. Testing table; 2. Control panel; 3. Partition; 4. Electric telescopic rod; 5. Flat plate;

[0035] The automatic pick-and-place assembly includes: 61, a movable plate; 62, a straight slot; 63, a straight rod; 64, a first limiting plate; 65, a second limiting plate; 66, a limiting slot;

[0036] The clamping limit assembly includes: 71, a ferrule; 72, an adjusting rod; 73, a connecting rod; 74, a clamping plate; 75, a screw rod; 76, a slider; 77, a pressure plate; 78, a return spring; 79, a side rod; 710, a corner baffle; 711, a fixed shaft; 712, a storage plate;

[0037] The impact assembly includes: 81, driving motor; 82, turntable; 83, vertical plate; 84, impact rod; 85, protective cover; 86, sleeve; 87, sleeve rod; 88, clamping groove; 89, avoidance spring; 810, clamping block; 811, embedding groove. DETAILED DESCRIPTION

[0038] 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.

[0039] See also Figures 1 to 10 The above is a preferred embodiment provided by the present invention:

[0040] A circuit board automatic pick-and-place test machine comprises a test table 1, a control panel 2 is fixedly connected to the outside of the test table 1, a partition 3 is fixedly connected to the top of the test table 1, an opening is provided on the side of the partition 3 close to the control panel 2, a worker puts a circuit board to be tested through the opening of the partition 3, an electric telescopic rod 4 is fixedly connected to the top of the inner side of the partition 3, a flat plate 5 is fixedly connected to the lower end of the electric telescopic rod 4, a movable plate 61 is slidably connected to the top of the test table 1, an impact assembly is arranged at the bottom of the flat plate 5, an automatic pick-and-place assembly is arranged on the outside of the movable plate 61, and a clamping limit assembly is arranged on the top of the movable plate 61;

[0041] The automatic pick-and-place assembly is used to quickly replace the circuit board for testing, and the clamping limit assembly is used to prevent the circuit board from shifting during the impact test;

[0042] The automatic pick-and-place assembly includes a straight groove 62 provided on the outer wall of the flat plate 5, a straight rod 63 is slidably connected inside the straight groove 62 of the flat plate 5, a first limit plate 64 corresponding to the position of the straight rod 63 is fixedly connected to the top of the movable plate 61, a second limit plate 65 is fixedly connected to the top of the detection table 1, and a limit groove 66 is provided on both the first limit plate 64 and the second limit plate 65, and the straight rod 63 is slidably connected inside the limit groove 66;

[0043] The clamping limit assembly includes a pad fixedly connected to the top of the movable plate 61, and two corner baffles 710 are fixedly connected to the top of the pad. A notch is provided on the corner baffle 710 near the adjusting rod 72. A clamping sleeve 71 is fixedly connected to one side of the movable plate 61 near the pad. An adjusting rod 72 is slidably connected inside the clamping sleeve. The side of the adjusting rod 72 near the pad is set as an inclined surface. A return spring 78 is fixedly connected between the adjusting rod 72 and the clamping sleeve 71. A side rod 79 corresponding to the position of the adjusting rod 72 is fixedly connected to the outside of the impact rod 84. A connecting rod 73 is fixedly connected to one side of the adjusting rod 72 near the first limiting rod. One end of the connecting rod 73 near the pad is fixedly connected to a clamping plate 74. A screw rod 75 is threadedly connected to the top of the clamping plate 74. The lower end of the screw rod 75 is rotatably connected to a slider 76. A sliding groove adapted to the slider 76 is provided inside the clamping plate 74, and a pressing plate 77 is fixedly connected to the side of the slider 76 away from the clamping plate 74.

[0044] By setting up an automatic pick-and-place component, the inspector can replace the circuit board outside the partition 3. During the replacement process, he will not be restricted by the partition 3 or blocked by the impact component inside the partition 3. The replacement of the circuit board can be completed quickly in a short time, shortening the circuit board inspection interval, improving the continuity of the inspection work, and thus improving the efficiency of the circuit board inspection work.

[0045] The impact assembly includes a driving motor 81 installed at the bottom of the flat plate 5, a turntable 82 is fixedly connected to the output shaft of the driving motor 81, a vertical plate 83 is fixedly connected to the outer wall of the flat plate 5, a side of the vertical plate 83 close to the turntable 82 is slidably connected to a striker rod 84, a side of the turntable 82 close to the striker rod 84 is fixedly connected to an eccentric circular block, a horizontal groove matching the eccentric circular block is opened in the middle of the striker rod 84, a buffer pad is covered at the lower end of the striker rod 84, a protective cover 85 is fixedly connected to the outer side of the flat plate 5, and the turntable A sleeve 86 is fixedly connected to the side of 82 close to the driving motor 81, a sleeve rod 87 matched with the sleeve 86 is fixedly connected to the output shaft of the motor, a clamping groove 88 is provided on the outer wall of the sleeve rod 87, a bypass spring 89 is fixedly connected inside the clamping groove 88, a clamping block 810 is fixedly connected to the side of the bypass spring 89 close to the sleeve 86, an embedded groove 811 corresponding to the position of the clamping block 810 is provided on the inner side of the sleeve 86, and a side of the clamping block 810 close to the embedded groove 811 is set as an inclined surface;

[0046] The movement of the adjusting rod 72 will drive the clamping plate 74 to move away from the impact rod 84. At this time, the movement of the clamping plate 74 can cause a horizontal pulling force on the circuit board, which can straighten the circuit board that is bent after the impact, and can effectively prevent the circuit board from being dislodged from the movable clamping plate 74 after excessive bending, so that the circuit board is in a stable placement state during the detection process, which can effectively reduce the number of times the detection personnel stop the machine to adjust the circuit board, which is conducive to the continuous and stable detection work;

[0047] When the turntable 82 encounters greater resistance during rotation, the clamping block 810 originally clamped in the embedding groove 811 will be subjected to greater side pressure. The clamping block 810 moves toward the inside of the clamping groove 88 and compresses the avoidance spring 89. At this time, the clamping block 810 will come out of the embedding groove 811, and the sleeve rod 87 will be disconnected from the sleeve 86. At this time, the rotation of the sleeve rod 87 will not drive the sleeve 86 to rotate, which can effectively avoid the drive motor 81 from getting stuck and overloaded, protect the drive motor 81, reduce the loss of the drive motor 81 during use, and extend the service life of the drive motor 81. The protective cover 85 can provide external protection for the drive motor 81.

[0048] A fixed shaft 711 is fixedly connected to the top of the screw rod 75, and a storage plate 712 is rotatably connected to the outer side of the fixed shaft 711. The screw rod 75 is made of iron alloy. A magnet sheet is fixedly connected to the side of the storage plate 712 close to the screw rod 75, and a protrusion is fixedly connected to the outer side of the storage plate 712. The storage plate 712 can be adhered and adsorbed on the top of the screw rod 75 through the magnet sheet fixed at the bottom, and the outside of the storage plate 712 is fixedly connected to the protrusion. The inspector can pry up the storage plate 712 from the top of the screw rod 75 through the protrusion. Through the vertical storage plate 712, the inspector can rotate the small screw rod 75 without the aid of tools, thereby reducing the difficulty of replacing the circuit board for the inspector.

[0049] Working principle:

[0050] In the initial state, the testing platform 1 is connected to the external power supply through a connecting line, and the control panel 2 is installed on the outside of the testing platform 1. The electric telescopic rod 4 and the drive motor 81 are both electrically connected to the control panel 2. The length of the electric telescopic rod 4, the power-on state and the rotation rate of the drive motor 81 can be adjusted through the control panel 2. The faster the rotation rate of the drive motor 81, the faster the up and down movement rate of the impact rod 84. Therefore, the impact intensity during circuit board inspection can be controlled through the control panel 2. The drive motor 81 is installed on a flat plate 5 fixed at the bottom of the electric telescopic rod 4. The height of the drive motor 81 can be changed by adjusting the length of the electric telescopic rod 4. The partition 3 is fixed on the top of the testing platform 1 to separate the inspection space from the external environment, and can block the debris generated by the breakage of the circuit board. An opening is provided on the side of the partition 3 close to the control panel 2 to facilitate the inspectors to take and place the circuit boards to be inspected from the opening side.

[0051] During operation, the circuit board to be inspected is placed horizontally along the top of the pad. A corner baffle 710 is fixed on the top of the pad, which can limit the position of the placed circuit board and prevent the circuit board from shifting in position after being hit. A notch is provided on the corner baffle 710 close to the side of the control panel 2, which will not block the placement of the circuit board and facilitate the placement of the circuit board. After the circuit board is fixed, the inspector adjusts the control panel 2 so that the electric telescopic rod 4 extends and drives the impact rod 84 to move closer to the movable plate 61, and connects the drive motor 81 to an external power supply. The output shaft of the drive motor 81 is fixedly connected to a sleeve rod 87 fixed with a turntable, which is clamped in the sleeve 86 on the outside of the turntable 82, and in When the sleeve rod 87 rotates, the clamping block 810 is supported by the avoidance spring 89 and the outward centrifugal force at the same time. The clamping block 810 can be stably clamped in the embedding groove 811 of the sleeve 86. After the drive motor 81 is connected to an external power supply, it can drive the turntable 82 to rotate. During the rotation of the turntable 82, the eccentric circle block of the turntable 82 away from the side of the drive motor 81 makes a circular motion with the center point of the turntable 82 as the center. Since the eccentric circle block is clamped in the horizontal groove in the middle of the impact rod 84, the impact rod 84 is movably connected to one side of the vertical plate 83. Driven by the eccentric circle block, the impact rod 84 can repeatedly move up and down on one side of the vertical plate 83, and the lower end of the impact rod 84 can continuously impact the circuit board placed on the pad.

[0052] In the process of driving the motor 81 to move close to the movable plate 61, since the second limiting plate 65 is tilted and fixed on the top of the inspection table 1, the straight rod 63 in the straight groove 62 will move toward the inside of the partition 3 due to the limiting effect of the second limiting plate 65 during the downward movement of the flat plate 5. Since the straight rod 63 is simultaneously clamped in the limiting grooves 66 provided on the first limiting plate 64 and the second limiting plate 65, and the first limiting plate 64 is vertically fixed on the top of the movable plate 61, the movement of the straight rod 63 will drive the first limiting plate 64 and the movable plate 61 connected to the bottom of the first limiting plate 64 to move toward the inside of the partition 3, so that the circuit board fixed on the top of the movable plate 61 can move toward the inside of the partition 3 during the downward movement of the flat plate 5. Move down to the position corresponding to the impact rod 84. After completing the test of a circuit board, the circuit board placed on the pad needs to be replaced. The inspector controls the electric telescopic rod 4 to retract, and the straight rod 63 moves in the opposite direction inside the straight groove 62 to drive the movable plate 61 to move from the inside of the partition 3. By setting up an automatic pick-and-place component, the inspector can replace the circuit board outside the partition 3. In the process of replacing the circuit board, it will not be restricted by the partition 3 or blocked by the impact component inside the partition 3. The replacement of the circuit board can be completed quickly in a short time, shortening the time of the circuit board detection interval, improving the continuity of the detection work, and thus improving the efficiency of the circuit board detection work.

[0053] The cam 76 is in a position to move the locking cam 74 downwards and the locking cam 76 is in a position to move the locking cam 74 downwards and the locking cam 76 is in a position to move the locking cam 74 upwards. The adjusting rod 72 moves close to the first limit plate 64, the reset spring 78 connected between the adjusting rod 72 and the clamping sleeve 71 is compressed, and the clamping plate 74 is fixedly connected to the adjusting rod 72 by the connecting rod 73. The movement of the adjusting rod 72 will drive the clamping plate 74 to move away from the impact rod 84. At this time, the movement of the clamping plate 74 can cause horizontal pulling force on the circuit board, which can straighten the circuit board that is bent after the impact, and can effectively prevent the circuit board from falling out of the clamping plate 74 after excessive bending, so that the circuit board is in a stable placement state during the detection process, which can effectively reduce the number of times the detection personnel stop to adjust the circuit board, which is conducive to the continuous and stable detection work.

[0054] The fixed shaft 711 is located in the middle of the top surface of the screw rod 75, and two rotatable storage plates 712 are movably connected to the outside of the screw rod 75. The screw rod 75 is made of iron alloy. The storage plate 712 can be adhered to the top of the screw rod 75 through the magnet sheet fixed at the bottom, and the outside of the storage plate 712 is fixedly connected with a protrusion. The inspector can pry up the storage plate 712 from the top of the screw rod 75 through the protrusion. Through the vertical storage plate 712, the inspector can rotate the small screw rod 75 without the aid of tools, thereby reducing the difficulty of replacing the circuit board for the inspector.

[0055] In addition, some inspectors have insufficient operating skills. When performing impact detection, the electric telescopic rod 4 will be over-extended, and the impact rod 84 or the side rod 79 will directly contact the movable plate 61. The movable plate 61 will prevent the impact rod 84 from continuing to move downward. At this time, the turntable 82 will be subject to greater resistance, causing the clamping block 810 originally clamped in the embedding groove 811 to be subject to greater side pressure. The clamping block 810 moves toward the inside of the clamping groove 88 and compresses the avoidance spring 89. At this time, the clamping block 810 will disengage from the embedding groove 811, and the sleeve rod 87 will be disconnected from the sleeve 86. At this time, the rotation of the sleeve rod 87 will not drive the sleeve 86 to rotate, which can effectively avoid the drive motor 81 from being stuck and overloaded, protect the drive motor 81, reduce the loss of the drive motor 81 during use, and extend the service life of the drive motor 81. The protective cover 85 can provide external protection for the drive motor 81.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board automatic pick-and-place test machine, comprising a test table (1), characterized in that: The outer side of the detection platform (1) is fixedly connected to a control panel (2); the top of the detection platform (1) is fixedly connected to a partition (3); the inner top of the partition (3) is fixedly connected to an electric telescopic rod (4); the lower end of the electric telescopic rod (4) is fixedly connected to a flat plate (5); the top of the detection platform (1) is slidably connected to a movable plate (61); the bottom of the flat plate (5) is provided with an impact assembly; the outer side of the movable plate (61) is provided with an automatic pick-and-place assembly; and the top of the movable plate (61) is provided with a clamping limit assembly; The automatic pick-and-place assembly is used for quickly replacing the circuit board for testing, and the clamping and limiting assembly is used to prevent the circuit board from being displaced during the impact test.

2. The circuit board automatic pick-and-place test machine according to claim 1, characterized in that: The automatic pick-and-place assembly comprises a straight groove (62) provided on the outer wall of the flat plate (5); a straight rod (63) is slidably connected inside the straight groove (62) of the flat plate (5); a first limiting plate (64) corresponding to the position of the straight rod (63) is fixedly connected to the top of the movable plate (61); a second limiting plate (65) is fixedly connected to the top of the detection platform (1); limiting grooves (66) are provided on the first limiting plate (64) and the second limiting plate (65); and the straight rod (63) is slidably connected inside the limiting groove (66).

3. The circuit board automatic pick-and-place test machine according to claim 1, characterized in that: The clamping and limiting assembly includes a pad fixedly connected to the top of the movable plate (61), a clamping sleeve (71) fixedly connected to the side of the movable plate (61) close to the pad, an adjusting rod (72) slidably connected inside the clamping sleeve (71), a connecting rod (73) fixedly connected to the side of the adjusting rod (72) close to the first limiting rod, an end of the connecting rod (73) close to the pad is fixedly connected to a clamping plate (74), a screw rod (75) is threadedly connected to the top of the clamping plate (74), a slider (76) is rotatably connected to the lower end of the screw rod (75), a sliding groove matched with the slider (76) is provided inside the clamping plate (74), and a pressure plate (77) is fixedly connected to the side of the slider (76) away from the clamping plate (74).

4. The circuit board automatic pick-and-place test machine according to claim 1, characterized in that: The impact assembly comprises a driving motor (81) fixedly connected to the bottom of the flat plate (5); a rotating disk (82) is fixedly connected to the output shaft of the driving motor (81); a vertical plate (83) is fixedly connected to the outer wall of the flat plate (5); and a side of the vertical plate (83) close to the rotating disk (82) is slidably connected to an impact rod (84).

5. The circuit board automatic pick-and-place test machine according to claim 4, characterized in that: An eccentric circular block is fixedly connected to one side of the rotating disk (82) close to the impact rod (84); a transverse groove matching the eccentric circular block is provided in the middle of the impact rod (84); a buffer pad is wrapped around the lower end of the impact rod (84); and a protective cover (85) is fixedly connected to the outer side of the flat plate (5).

6. A circuit board automatic pick-and-place test machine according to claim 3 or 4, characterized in that: A side of the adjusting rod (72) close to the cushion block is arranged as an inclined surface, a return spring (78) is fixedly connected between the adjusting rod (72) and the clamping sleeve (71), and a side rod (79) corresponding to the position of the adjusting rod (72) is fixedly connected to the outside of the impact rod (84).

7. The circuit board automatic pick-and-place test machine according to claim 3, characterized in that: Two corner baffles (710) are fixedly connected to the top of the cushion block, and a notch is formed on one side of the corner baffle (710) close to the adjustment rod (72).

8. The circuit board automatic pick-and-place test machine according to claim 3, characterized in that: The top of the screw rod (75) is fixedly connected to a fixed shaft (711), the outer side of the fixed shaft (711) is rotatably connected to a receiving plate (712), the screw rod (75) is made of iron alloy, a magnet sheet is fixedly connected to a side of the receiving plate (712) close to the screw rod (75), and a protrusion is fixedly connected to the outer side of the receiving plate (712).

9. The circuit board automatic pick-and-place test machine according to claim 4, characterized in that: A sleeve (86) is fixedly connected to one side of the rotating disk (82) close to the driving motor (81); a sleeve rod (87) matched with the sleeve (86) is fixedly connected to the output shaft of the driving motor (81); a clamping groove (88) is provided on the outer wall of the sleeve rod (87); a bypass spring (89) is fixedly connected inside the clamping groove (88); and a clamping block (810) is fixedly connected to one side of the bypass spring (89) close to the sleeve (86).

10. The circuit board automatic pick-and-place test machine according to claim 9, characterized in that: An embedding groove (811) corresponding to the position of the clamping block (810) is provided on the inner side of the sleeve (86), and a side of the clamping block (810) close to the embedding groove (811) is arranged as an inclined surface.

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