A single board automatic testing device

Abstract

The present invention discloses a single board automatic testing device, which belongs to the field of circuit board testing, and is equipped with a conveying roller, a supporting roller, a positioning suction cup, a testing device, and a plate moving structure. The conveying roller carries a conveyor belt, and a plug is provided at the bottom of the positioning suction cup. The plug can be gradually inserted into and tightly fit into the hole on the single board during the process of the positioning suction cup adsorbing downward on the single board. The plate moving structure can drive the single board to rotate through the positioning suction cup, so as to face the testing device in a vertical state, and the testing device moves in a horizontal direction, so that the single board is embedded in the testing device. In the present invention, at the testing station, the conveyor belt forms a belt surface with a horizontal middle and two sides inclined downward at the position of the supporting roller, and the two sides of the single board are suspended in the area above the belt surface inclined downward, so that the plug can be inserted downward into the hole on the single board, and the positioning suction cup produces an adsorption and positioning effect on the single board and drives the single board to move to the side of the testing device to complete the test, thereby improving production efficiency on the basis of realizing automated testing.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board testing, and in particular to a single board automatic testing device. Background Art

[0002] During the production process of system single-board products, the single board needs to be tested. Currently, the production test of system single-board products is mainly performed manually by workers using independent supporting test tools and general test instruments. The test items include product information recording, product software burning, test point short-circuit test, voltage parameter measurement, indicator light judgment, and hardware function test. Each production test link requires manual participation to complete the product production test work, and manual testing is prone to missed detection and misjudgment.

[0003] To solve the above problems, the invention patent with publication number CN113064059B in the prior art provides a single-board automatic testing system, which carries the single board through a special single-board carrier, and transfers the carrier between each workstation through a mechanical gripper component to drive the single board to be transferred to the test bench for related project testing.

[0004] In the prior art, since the single board body is relatively thin, a carrier is needed to realize the transfer and testing of the single board. During the entire production process of the single board, the same number of carriers as the single board are required to complete the transfer and testing actions. The single board needs to be installed on the carrier before the test process, and the single board needs to be removed from the carrier after the test. On the basis of realizing automated testing, the production process is passively increased, the production cycle is extended, and the production efficiency is low. Summary of the invention

[0005] To this end, the present invention provides a single board automatic testing device, which effectively solves the technical problem in the prior art that it is impossible to simultaneously meet the requirements of automated testing and improve production efficiency.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: a single board automatic testing device, comprising:

[0007] a conveyor roller on which a conveyor belt is carried;

[0008] A supporting roller, supported on the bottom of the conveyor belt, wherein two supporting rollers are provided and are on the same horizontal plane;

[0009] A positioning suction cup is arranged just above the supporting roller, and a plug is arranged at the bottom of the positioning suction cup. The plug can be gradually inserted into and tightly fitted into the hole on the single board during the process of the positioning suction cup being sucked downward onto the single board, so as to form a sealing area between the positioning suction cup and at least a part of the surface of the single board;

[0010] A testing device, installed obliquely above the supporting roller, and used for testing the veneer when the veneer is embedded;

[0011] A plate moving structure is installed above the positioning suction cup, and the plate moving structure can drive the single board to rotate 1 / 4 of a circle through the positioning suction cup, so as to face the test device in a vertical state, and the test device moves in a horizontal direction so that the single board is embedded in the test device;

[0012] Among them, the height of the supporting roller is higher than that of the conveying roller, and the conveyor belt forms a belt surface with a horizontal middle and downward slanting sides at the supporting roller position, so that the edge of the single board is in a suspended state above the belt surface.

[0013] Further, the outer diameter of the plug is consistent with the inner diameter of the hole of the single board;

[0014] The bottom of the plug is consistent with the initial height of the bottom of the positioning suction cup.

[0015] Furthermore, a negative pressure tube is connected to the positioning suction cup, and the plug passes through the inside of the negative pressure tube and is connected to the top of the negative pressure tube;

[0016] Wherein, the outer diameter of the plug is smaller than the inner diameter of the negative pressure tube.

[0017] Furthermore, the negative pressure tube is externally connected to an air extraction tube, and the end of the air extraction tube is connected to an air extraction pump.

[0018] Furthermore, a mounting base plate is installed outside the negative pressure tube, a mounting top plate is arranged above the mounting base plate, a first hydraulic cylinder is installed at the bottom of the mounting top plate, and an output end of the first hydraulic cylinder is connected to the center position of the mounting base plate.

[0019] Further, the plate shifting structure comprises a column cabin mounted on the mounting top plate, a horizontal axis movably arranged on the column cabin, and a rotating shaft frame movably connected to the end of the horizontal axis;

[0020] The column cabin is horizontally installed on the top of the installation top plate, one end of the horizontal shaft is rotatably installed in the column cabin, and the other end is rotatably installed on the end of the rotating shaft frame.

[0021] Furthermore, a driving frame is installed on the side of the column cabin, a driving motor is arranged at the end of the driving frame, and the shaft end of the driving motor is connected to the end of the rotating shaft frame;

[0022] A horizontal rod is installed at the top of the driving frame, a rotating seat is rotatably installed at the end of the horizontal rod, a through slot is opened in the rotating seat, a limit rod is connected to the column cabin, and the end of the limit rod is slidably arranged in the through slot;

[0023] Wherein, when the mounting base plate is in a horizontal state, the limiting rod is in a vertical state, and when the mounting base plate is in a vertical state, the limiting rod is in a horizontal state.

[0024] Further, the test device includes a test box, a test mainboard installed in the test box, and a plurality of probes installed on the test mainboard;

[0025] A notch is provided on the side of the test box, a protection plate is installed on the notch, an opening is provided on the protection plate corresponding to the position of the probe, and a second hydraulic cylinder is installed on the side of the test box;

[0026] A test circuit is installed in the test box and is connected to the console.

[0027] Further, the conveying roller is arranged at the upstream end and the downstream end of the supporting roller;

[0028] There are two conveying rollers at each position, the conveyor belt passes through the conveying rollers, and the conveying rollers and the supporting rollers are both installed on the frame;

[0029] The conveying roller closest to the support roller and located at the top is composed of two roller segments;

[0030] A feeding interval is formed between the roller segments, and a width of the feeding interval is greater than a width of the single board.

[0031] Furthermore, a barcode scanner is installed above the conveyor belt, and the barcode scanner is used to mark the code information on the surface of the single board;

[0032] A photoelectric sensor is arranged on the side of the conveyor belt on the supporting roller, and whether a single board has arrived is obtained according to the photoelectric sensor signal.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the present invention, a conveyor belt is used to transport the single board. At the test station, the conveyor belt forms a belt surface at the supporting roller position that is horizontal in the middle and inclined downward on both sides. When the single board is on the belt surface, its two sides are suspended in the area above the belt surface inclined downward, so that the plug can be inserted downward into the hole on the single board. The positioning suction cup produces an adsorption and positioning effect on the single board, and the single board is driven to move to the side of the test device through the positioning effect to complete the test. The entire testing process does not rely on other auxiliary structures, thereby improving production efficiency on the basis of realizing automated testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0036] Figure 1 A schematic diagram of the structure of a single board automatic testing device provided by an embodiment of the present invention;

[0037] Figure 2 A structural schematic diagram of another perspective of a single board automatic testing device provided by an embodiment of the present invention;

[0038] Figure 3 A right side view of a single board automatic testing device provided by an embodiment of the present invention;

[0039] Figure 4 is a structural schematic diagram of a shift plate structure in an embodiment of the present invention;

[0040] Figure 5 It is a right side view of the moving plate structure in the embodiment of the present invention;

[0041] Figure 6 It is a structural schematic diagram of a single plate and a shifting plate structure in an initial state in an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the structure after the rotating shaft frame drives the single board to rotate a certain angle in an embodiment of the present invention;

[0043] Figure 8 This is a schematic diagram of the structure after the rotating shaft frame drives the single board to rotate 1 / 4 of a circle in an embodiment of the present invention.

[0044] The numbers in the figure represent the following:

[0045] 1-transmission roller; 2-conveyor belt; 3-support roller; 4-positioning suction cup; 5-testing device; 6-plate moving structure; 7-bolt; 8-single board; 9-negative pressure pipe; 10-exhaust pipe; 11-exhaust pump; 12-installation bottom plate; 13-installation top plate; 14-first hydraulic cylinder; 15-frame; 16-roller section; 17-feeding section; 18-barcode scanner;

[0046] 51-test box; 52-notch; 53-protection plate; 54-opening; 55-second hydraulic cylinder;

[0047] 61-column cabin; 62-horizontal axis; 63-rotating axis frame; 64-driving frame; 65-driving motor; 66-horizontal rod; 67-rotating seat; 68-through slot; 69-limiting rod. DETAILED DESCRIPTION

[0048] 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.

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a single board automatic testing device, which has structures such as a conveying roller 1, a conveyor belt 2, a supporting roller 3, a positioning suction cup 4, a testing device 5, and a plate moving structure 6.

[0050] The conveying roller 1 carries a conveyor belt 2 , which is used to support and transport the single board 8 .

[0051] The supporting roller 3 is installed below the test station. The supporting roller 3 is supported on the bottom of the conveyor belt 2. Two supporting rollers 3 are provided and are on the same horizontal plane. From the perspective of the entire test process, the conveyor belt 2 is supported and transmitted by several transmission rollers 1 and two supporting rollers 3.

[0052] Furthermore, there are at least two supporting rollers 3. To ensure the positioning effect of the single board 8 on the horizontal belt surface, the number of supporting rollers 3 can be increased.

[0053] In the present invention, the height of the supporting roller 3 is higher than that of the conveying roller 1, and the conveyor belt 2 forms a belt surface at the position of the supporting roller 3 that is horizontal in the middle and inclined downward on both sides, so that the edge of the single board 8 is in a suspended state above the belt surface, that is, the middle position of the single board 8 is directly above the horizontal belt surface, and the edge of the single board 8 is directly above the inclined belt surface and is suspended.

[0054] Among them, the length of the horizontal belt surface formed at the test station must be less than the length of the single board 8, and the edge of the horizontal belt surface will not exceed the position of the hole on the single board 8.

[0055] The positioning suction cup 4 can adsorb the single board 8. The positioning suction cup is arranged directly above the supporting roller 3. A plug 7 is arranged at the bottom of the positioning suction cup 4. The plug 7 can be gradually inserted into and tightly fitted into the hole on the single board 8 during the process of the positioning suction cup 4 being adsorbed downward on the single board 8, so as to form a sealing area between the positioning suction cup 4 and at least part of the surface of the single board 8.

[0056] The testing device 5 is installed obliquely above the supporting roller 3 , and is used to test the single board 8 when the single board 8 is embedded.

[0057] The moving plate structure 6 is installed above the positioning suction cup 4. The moving plate structure 6 can drive the single plate 8 to rotate 1 / 4 of a circle through the positioning suction cup 4, so that it faces the test device 5 in a vertical state. The test device 5 moves in the horizontal direction so that the single plate 8 is embedded in the test device 5.

[0058] In the present invention, the single board 8 is transported by the conveyor belt 2. At the test station, the conveyor belt 2 forms a belt surface at the position of the supporting roller 3 with a horizontal middle and two sides inclined downward. When the single board 8 is on the belt surface, its two sides are suspended in the area above the belt surface inclined downward, so that the plug 7 can be inserted downward into the hole on the single board 8, and the positioning suction cup 4 produces an adsorption and positioning effect on the single board 8, and through this positioning effect, the single board 8 is driven to move to the side of the testing device 5 to complete the test.

[0059] The entire testing process does not rely on other auxiliary structures or supporting structures, and improves production efficiency on the basis of realizing automated testing.

[0060] In the present invention, the edge of the single board 8 is generally opened with holes, while the central area of ​​the single board 8 is full of electrical parts with uneven heights, which is not convenient for positioning. Therefore, the hole area of ​​the single board 8 is adsorbed and positioned. In order to ensure the sealing between the positioning suction cup 4 and the board surface of the single board 8 during the adsorption and positioning process, the present invention uses a plug 7 to seal the hole on the single board 8, wherein the outer diameter of the plug 7 is consistent with the inner diameter of the hole of the single board 8.

[0061] In addition, the bottom of the plug 7 is consistent with the initial height of the bottom of the positioning suction cup 4. In the process of the positioning suction cup 4 gradually adsorbing the single board 8, the single board 8 will gradually approach the positioning suction cup 4. Relative to the upward movement of the plug 7, the plug 7 gradually moves downward relative to the hole of the single board 8, that is, it is inserted downward into the hole of the single board 8. Since the single board 8 is thin, it gradually extends downward after insertion. During this process, the edge of the single board 8 is suspended in the air, and the belt surface of the conveyor belt 2 will not prevent the plug 7 from moving downward.

[0062] In order to achieve the adsorption and positioning effect of the positioning suction cup 4, the present invention makes the following design: a negative pressure tube 9 is connected to the positioning suction cup 4, and a plug 7 passes through the inside of the negative pressure tube 9 and is connected to the top of the negative pressure tube 9;

[0063] The outer diameter of the plug 7 is smaller than the inner diameter of the negative pressure tube 9 .

[0064] The negative pressure tube 9 is externally connected to an air extraction tube 10 , and an end of the air extraction tube 10 is connected to an air extraction pump 11 .

[0065] Assuming that in the initial state, the bottom of the plug 7 at least partially seals the hole on the single board 8, the vacuum pump 11 operates to extract the gas between the positioning suction cup 4 and the surface of the single board 8, so that the positioning suction cup 4 is gradually adsorbed on the surface of the single board 8, and the gas is discharged to the outside through the vacuum pipe 10 and the vacuum pump 11.

[0066] The vacuum pump 11 is generally a two-way air pump. The vacuum pump 11 not only has the effect of exhausting air, but also can inject external gas into the vacuum pipe 10. When it is necessary to release the adsorption and positioning effect on the single board 8, gas is injected into the vacuum pipe 10. The gas is injected between the positioning suction cup 4 and the surface of the single board 8, so that the positioning suction cup 4 is separated from the surface of the single board 8.

[0067] In the present invention, the single board 8 is transported to the test station under the transportation of the conveyor belt 2, but it cannot be ensured that the plug 7 is completely aligned with the hole on the single board 8 at this time. By setting a pushing rod structure on both sides of the conveyor belt 2, the single board 8 is pushed along the width direction of the single board 8 to achieve the alignment of the width direction of the single board 8. The position alignment of the single board 8 in the length direction can be achieved by the conveyor belt 2 itself.

[0068] In the above embodiments, a photoelectric sensor may be installed at the bottom of each plug 7 to determine whether the plug 7 is facing the hole on the single board 8 .

[0069] In order to enable the plug 7 to be inserted into the hole of the single board 8 before adsorption positioning, the present invention makes the following design: a mounting base plate 12 is installed outside the negative pressure tube 9, a mounting top plate 13 is arranged above the mounting base plate 12, a first hydraulic cylinder 14 is installed at the bottom of the mounting top plate 13, and the output end of the first hydraulic cylinder 14 is connected to the center position of the mounting base plate 12.

[0070] The first hydraulic cylinder 14 is driven to drive the installation base plate 12 to move up and down.

[0071] When the single board 8 is just transported to the bottom of the installation base plate 12, the first hydraulic cylinder 14 drives the installation base plate 12 to move downward, driving the negative pressure tube 9, the positioning suction cup 4, and the plug 7 to move downward. The plug 7 is inserted into the hole on the single board 8. At this time, the vacuum pump 11 drives to extract the gas between the positioning suction cup 4 and the single board 8, thereby achieving the adsorption and positioning effect between the positioning suction cup 4 and the single board 8.

[0072] The above adsorption process is likely to cause the single board 8 to move upward under the adsorption force, so that the plug 7 moves relatively to the bottom of the hole, but still penetrates the hole on the single board 8.

[0073] When the single board 8 needs to be released from adsorption and fixation, the air pump 11 is driven to inject gas between the positioning suction cup 4 and the board surface of the single board 8 to release the adsorption and fixation effect between the positioning suction cup 4 and the single board 8 .

[0074] In the present invention, after the single board 8 is fixed by the positioning suction cup 4, the moving board structure 6 can drive the single board 8 to rotate 1 / 4 of a circle through the positioning suction cup 4 to face the test device 5 in a vertical state. The moving board structure 6 of the present invention adopts the following preferred embodiments, such as Figure 4 , Figure 5As shown, the plate moving structure 6 includes a column cabin 61 installed on the mounting top plate 13, a horizontal shaft 62 movably arranged on the column cabin 61, and a rotating shaft frame 63 movably connected to the end of the horizontal shaft 62;

[0075] The column cabin 61 is horizontally installed on the top of the installation top plate 13 , one end of the horizontal shaft 62 is rotatably installed in the column cabin 61 , and the other end is rotatably installed on the end of the rotating shaft frame 63 .

[0076] In the above embodiments, the rotating shaft frame 63 can rotate, driving the entire structure of the positioning suction cup 4, the plug 7, the mounting bottom plate 12, and the mounting top plate 13 to rotate.

[0077] A driving frame 64 is installed on the side of the column cabin 61, and a driving motor 65 is arranged at the end of the driving frame 64. The shaft end of the driving motor 65 is connected to the end of the rotating shaft frame 63;

[0078] A horizontal rod 66 is installed at the top of the driving frame 64, and a rotating seat 67 is rotatably installed at the end of the horizontal rod 66. A through groove 68 is opened in the rotating seat 67. A limit rod 69 is connected to the column cabin 61, and the end of the limit rod 69 is slidably set in the through groove 68;

[0079] When the mounting base plate 12 is in a horizontal state, the limiting rod 69 is in a vertical state; when the mounting base plate 12 is in a vertical state, the limiting rod 69 is in a horizontal state.

[0080] In the present invention, the overall structure of the positioning suction cup 4 , the plug 7 , the mounting base plate 12 , and the mounting top plate 13 can not only revolve around the end of the rotating shaft frame 63 , but also rotate around the column cabin 61 .

[0081] like Figure 6 As shown, in the initial state, when the mounting base plate 12 is in a horizontal state, the limit rod 69 is in a vertical state, and the single board 8 is in a horizontal state, as shown in FIG. Figure 7 and Figure 8 As shown, the driving motor 65 drives the overall structure of the positioning suction cup 4, the plug 7, the mounting base plate 12, and the mounting top plate 13 to rotate clockwise (revolution). Under the limiting action of the limiting rod 69, the overall structure of the positioning suction cup 4, the plug 7, the mounting base plate 12, and the mounting top plate 13 rotates counterclockwise (rotates) around the column cabin 61, gradually driving the single board 8 to transform from a horizontal state to a vertical state. The single board 8 in the vertical state is just facing the test device 5.

[0082] In the shifting plate structure 6 of the present invention, the limiting rod 69 is mainly used to limit the angle of the overall structure of the positioning suction cup 4, the plug 7, the mounting base plate 12, and the mounting top plate 13. The function of the limiting rod 69 is to limit the angle of the above structure, and the function of the rotating shaft frame 63 is to limit the position of the above structure.

[0083] In order to ensure that the structure can face the test device 5 after rotating 1 / 4 of a circle, the rotating seat 67 should face the test device 5 .

[0084] The test device 5 in the present invention adopts the following preferred embodiment, the test device 5 comprises a test box 51, a test mainboard installed in the test box 51 and a plurality of probes installed on the test mainboard;

[0085] A slot 52 is provided on the side of the test box 51, a protection plate 53 is installed on the slot 52, and an opening 54 is provided on the protection plate 53 corresponding to the probe position. A second hydraulic cylinder 55 is installed on the side of the test box 51. A test circuit is installed in the test box 51 and is connected to the console.

[0086] The second hydraulic cylinder 55 can drive the test box 51 to approach the single board 8 until the protection plate 53 is attached to the single board 8, and continue to move so that the probe connects to the interface on the single board 8 to achieve testing.

[0087] In actual application, short circuit test and voltage test are mainly performed on the single board 8 .

[0088] Specifically, the test box 51 can be equipped with a simulated load, which is connected to the single board 8 through an interface adapter and a probe. The power supply is connected to the single board 8 through an analog adapter and a probe for powering the single board 8. The relay is connected to the power supply through an analog module for controlling the on and off of the power supply.

[0089] During specific implementation, the test box 51 receives the test command, executes the test command inside the test box 51, and then feeds back the command execution status to the logic unit, thereby completing the test process of the single board 8.

[0090] After the test is completed, the second hydraulic cylinder 55 is reset, driving the test box 51 to reset.

[0091] In the present invention, the conveying rollers 1 are arranged at the upstream and downstream ends of the supporting rollers 3 , there are two conveying rollers 1 at each position, the conveyor belt 2 passes through between the conveying rollers 1 , and the conveying rollers 1 and the supporting rollers 3 are both installed on the frame 15 .

[0092] In order to load the single board 8 onto the conveyor belt 2, the present invention makes the following design: the conveying roller 1 closest to the supporting roller 3 and located at the top is composed of two roller segments 16; a loading interval 17 is formed between the roller segments 16, and the width of the loading interval 17 is greater than the width of the single board 8.

[0093] The single board 8 is loaded from the middle position of the conveyor belt 2, passes through the loading section 17 and is continuously transported backward to the testing station.

[0094] In order to identify different single boards 8 , a barcode scanner 18 is installed above the conveyor belt 2 . The barcode scanner 18 is used to mark the code information on the surface of the single board 8 . The barcode scanner 18 can also be directly installed on the outside of the test box 51 .

[0095] In the present invention, a photoelectric sensor is arranged on the side of the conveyor belt 2 on the supporting roller 3, and whether the single board arrives is obtained according to the photoelectric sensor signal.

[0096] In summary, the main implementation process of the present invention is:

[0097] The single board 8 is loaded from the middle position of the conveyor belt 2, passes through the loading section 17 and is continuously transported backward to the testing station, and the position of the single board 8 on the testing station is adjusted;

[0098] When the hole on the single board 8 is just opposite to the plug 7, the first hydraulic cylinder 14 drives the mounting base 12 to move downward, driving the negative pressure tube 9, the positioning suction cup 4, and the plug 7 to move downward, and the plug 7 is inserted into the hole on the single board 8. At this time, the air pump 11 drives to extract the gas between the positioning suction cup 4 and the single board 8, so as to achieve the adsorption and positioning effect between the positioning suction cup 4 and the single board 8;

[0099] The driving motor 65 drives the positioning suction cup 4, the plug 7, the mounting bottom plate 12, and the mounting top plate 13 to rotate clockwise (revolution). Under the limiting action of the limiting rod 69, the positioning suction cup 4, the plug 7, the mounting bottom plate 12, and the mounting top plate 13 rotate counterclockwise (rotation) around the column cabin 61, gradually driving the single board 8 to transform from a horizontal state to a vertical state. The single board 8 in the vertical state just faces the test device 5.

[0100] The second hydraulic cylinder 55 can drive the test box 51 to approach the single board 8 until the protection plate 53 is attached to the single board 8, and then continue to move so that the probe connects to the interface on the single board 8 to test the single board 8;

[0101] After the test is completed, the second hydraulic cylinder 55 is reset, driving the test box 51 to reset;

[0102] The driving motor 65 rotates and drives the single board 8 to return to a horizontal state.

[0103] The vacuum pump 11 is driven to inject gas between the positioning suction cup 4 and the surface of the single board 8 to release the adsorption and fixing effect between the positioning suction cup 4 and the single board 8. The single board 8 is placed back on the conveyor belt 2 and continues to be transported backward.

[0104] In actual application, two distribution boxes may be provided at the downstream end of the conveyor belt 2 , and the two distribution boxes are loaded with qualified and unqualified single boards 8 respectively.

[0105] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A single board automatic testing device, It is characterized in that have: A conveyor roller (1) on which a conveyor belt (2) is carried; A supporting roller (3) supported on the bottom of the conveyor belt (2), wherein two supporting rollers (3) are arranged on the same horizontal plane; A positioning suction cup (4) is arranged directly above the supporting roller (3), and a plug (7) is arranged at the bottom end of the positioning suction cup (4). The plug (7) can be gradually inserted into and tightly fitted into a hole on the single board (8) during the process of the positioning suction cup (4) being sucked downward onto the single board (8), so as to form a sealing area between the positioning suction cup (4) and at least a part of the surface of the single board (8); A testing device (5) is installed obliquely above the supporting roller (3), and the testing device (5) is used to test the single board (8) when the single board (8) is embedded; A plate moving structure (6) is installed above the positioning suction cup (4), and the plate moving structure (6) can drive the single plate (8) to rotate 1 / 4 of a circle through the positioning suction cup (4) to face the test device (5) in a vertical state, and the test device (5) moves in a horizontal direction so that the single plate (8) is embedded in the test device (5); The height of the supporting roller (3) is higher than the height of the conveying roller (1), and the conveyor belt (2) forms a belt surface at the supporting roller (3) with a horizontal middle and two sides inclined downward, so that the edge of the single board (8) is in a suspended state above the belt surface; The positioning suction cup (4) is connected to a negative pressure tube (9), and the plug (7) passes through the inside of the negative pressure tube (9) and is connected to the top end of the negative pressure tube (9); Wherein, the outer diameter of the plug (7) is smaller than the inner diameter of the negative pressure tube (9); The negative pressure pipe (9) is externally connected to an air extraction pipe (10), and the end of the air extraction pipe (10) is connected to an air extraction pump (11); A mounting base plate (12) is installed outside the negative pressure pipe (9), a mounting top plate (13) is arranged above the mounting base plate (12), a first hydraulic cylinder (14) is installed at the bottom of the mounting top plate (13), and an output end of the first hydraulic cylinder (14) is connected to the center position of the mounting base plate (12); The plate shifting structure (6) comprises a column cabin (61) mounted on the mounting top plate (13), a horizontal shaft (62) movably arranged on the column cabin (61), and a rotating shaft frame (63) movably connected to the end of the horizontal shaft (62); The column cabin (61) is horizontally mounted on the top of the mounting top plate (13); one end of the horizontal shaft (62) is rotatably mounted in the column cabin (61), and the other end is rotatably mounted on the end of the rotating shaft frame (63); A driving frame (64) is installed on the side of the column cabin (61), a driving motor (65) is arranged at the end of the driving frame (64), and the shaft end of the driving motor (65) is connected to the end of the rotating shaft frame (63); A horizontal rod (66) is installed at the top of the driving frame (64), a rotating seat (67) is rotatably installed at the end of the horizontal rod (66), a through groove (68) is opened in the rotating seat (67), and a limiting rod (69) is connected to the column cabin (61), and the end of the limiting rod (69) is slidably arranged in the through groove (68); Wherein, when the mounting base plate (12) is in a horizontal state, the limiting rod (69) is in a vertical state, and when the mounting base plate (12) is in a vertical state, the limiting rod (69) is in a horizontal state.

2. The single board automatic testing device according to claim 1, It is characterized in that The outer diameter of the plug (7) is consistent with the inner diameter of the hole of the single plate (8); The bottom of the plug (7) is at the same initial height as the bottom of the positioning suction cup (4).

3. The single board automatic testing device according to claim 1, It is characterized in that The testing device (5) comprises a testing box (51), a testing mainboard installed in the testing box (51), and a plurality of probes installed on the testing mainboard; A notch (52) is provided on the side of the test box (51), a protection plate (53) is installed on the notch (52), an opening (54) is provided on the protection plate (53) corresponding to the position of the probe, and a second hydraulic cylinder (55) is installed on the side of the test box (51); A test circuit is installed in the test box (51) and is connected to a control console.

4. The single board automatic testing device according to claim 1, It is characterized in that The conveying roller (1) is arranged at the upstream end and the downstream end of the supporting roller (3); There are two conveying rollers (1) at each position, the conveyor belt (2) passes between the conveying rollers (1), and the conveying rollers (1) and the supporting rollers (3) are both mounted on a frame (15); The conveying roller (1) which is closest to the supporting roller (3) and located at the top is composed of two roller segments (16); A loading zone (17) is formed between the roller segments (16), and the width of the loading zone (17) is greater than the width of the single board (8).

5. The single board automatic testing device according to claim 1, It is characterized in that A barcode scanner (18) is installed above the conveyor belt (2), and the barcode scanner (18) is used to mark the code information on the surface of the single board (8); A photoelectric sensor is arranged on the side of the conveyor belt (2) on the supporting roller (3), and whether a single board has arrived is obtained based on a signal from the photoelectric sensor.

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