A full-automatic testing machine for PCBA

Abstract

The application relates to the technical field of PCBA testing, in particular to a full-automatic testing machine for PCBA, which comprises automatic feeding machines, automatic testing machines and automatic discharging machines arranged side by side from left to right; the automatic testing machine is composed of a testing cabinet, a testing table, an upper mold pressing-down mechanism and a conveying and lower mold mechanism; the bottom end of the testing cabinet is provided with the testing table; the conveying and lower mold mechanism is arranged inside the testing cabinet and below the upper mold pressing-down mechanism; and a lower mold jig is inserted into the conveying and lower mold mechanism. The application not only improves the automation degree and work efficiency, but also realizes the insertion function of the upper and lower surfaces of the PCBA and the jig by using one power source; meanwhile, the jig needle plate and the table needle plate can be completely inserted by using the floating connection assembly; the conveying and lower mold mechanism is arranged to realize the detection function of PCBA with different widths and improve the compatibility during detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PCBA testing, in particular to a full-automatic testing machine for PCBA. BACKGROUND

[0002] PCBA is printed circuit board assembly, PCB bare board is subjected to SMT component mounting, or subjected to DIP component insertion entire process. PCBA is that solder paste is printed on PCB, then various components such as resistor, integrated circuit, capacitor and transformer are installed according to the use and required characteristics of circuit board, and the circuit board obtained after assembly usually needs to be tested.

[0003] The existing PCBA testing machine has low automation degree, and manual assistance operation is needed in the testing process, so that the labor intensity during testing is increased, and the work efficiency is reduced. Moreover, the upper and lower mold jigs of the existing testing machine need to use respective power sources to complete signal connection by pressing PCBA, so that two power sources are needed for the entire machine, which leads to high cost. The jig needle plate and the machine table needle plate of the existing testing machine cannot be completely inserted during insertion, thereby affecting the subsequent testing precision. Meanwhile, the existing testing machine is difficult to realize the detection function of PCBA with different widths, thereby leading to poor compatibility of the testing machine. SUMMARY

[0004] The present application aims to provide a full-automatic testing machine for PCBA, so as to solve the problems of low automation degree and work efficiency of the existing testing machine, difficulty in realizing the detection of PCBA with different widths, and the need to use two power sources, and the jig needle plate and the machine table needle plate cannot be completely inserted.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a full-automatic testing machine for PCBA, comprising an automatic feeding machine, an automatic testing machine and an automatic discharging machine placed side by side from left to right, the automatic testing machine is composed of a testing machine cabinet, a testing machine table, an upper mold pressing-down mechanism and a conveying and lower mold mechanism, the testing machine cabinet is arranged in the middle of the feeding machine cabinet and the discharging machine cabinet, and the bottom end of the testing machine cabinet is provided with the testing machine table; the top end of the testing machine cabinet is connected with the upper mold pressing-down mechanism, the inside of the testing machine cabinet and below the upper mold pressing-down mechanism are provided with the conveying and lower mold mechanism, the inside of the conveying and lower mold mechanism is inserted with the lower mold jig, and the surface of the lower mold jig is fixed with two groups of jig needle plates, and the lower mold jig is used for the pressing-down detection of PCBA in cooperation with the testing machine table, the upper mold pressing-down mechanism and the conveying and lower mold mechanism.

[0006] Preferably, the automatic feeding machine comprises a feeding machine cabinet, a cage servo lifting module, a cage conveying line, a width-adjustable product conveying line and a cylinder push plate module, both upper and lower layers of the feeding machine cabinet are fixed with the cage conveying line, and the cage servo lifting module is installed on the surface of the feeding machine cabinet and located on one side of the cage conveying line.

[0007] Preferably, the top of the feeding machine cabinet is provided with the width-adjustable product conveying line and the cylinder push plate module, which is used to push the PCBA to be tested in the cage of the cage servo lifting module to the cylinder push plate module and then conveyed to the inside of the automatic testing machine to realize the feeding work.

[0008] Preferably, the automatic feeding machine comprises a feeding machine cabinet, a cage servo lifting module, a cage conveying line, a width-adjustable product conveying line and a cylinder push plate module, both upper and lower layers of the feeding machine cabinet are fixed with the cage conveying line, and the cage servo lifting module is installed on the surface of the feeding machine cabinet and located on one side of the cage conveying line.

[0009] Preferably, the upper mold pressing mechanism comprises a carrier, a lifting carrier plate, an electric lifting and pressing module, a spring pressing strip and an upper mold jig, the carrier is fixed to the surface of the testing machine cabinet, and the lifting carrier plate is slidably connected to the inside of the carrier.

[0010] Preferably, the electric lifting and pressing module is installed between the lifting carrier plate and the carrier, which is used to push the lifting carrier plate to realize the pressing work; the bottom end of the lifting carrier plate is inserted with the upper mold jig, which is used to detect the upper surface of the PCBA, and the spring pressing strip is installed on both sides of the lifting carrier plate, which is used for buffering work when pressing.

[0011] Preferably, the conveying and lower mold mechanism is composed of a support frame, an adjustable conveying line, a push cylinder and a push frame, the support frame is fixed in the inside of the testing machine cabinet, the push cylinder is installed in the inside of the support frame, the output end of the push cylinder is fixed with the push frame, and the surface of the push frame is connected with two groups of machine needle plates through the floating connection assembly, after the lower mold jig is inserted into the inside of the support frame, the jig needle plate on the surface of the push frame and the machine needle plate on the surface of the lower mold jig are inserted and docked with each other.

[0012] Preferably, the surface of the support frame is also connected with an adjustable conveying line for receiving the PCBA fed by the adjustable-width product conveying line and realizing conveying work; the adjustable conveying line comprises a width-adjusting screw module, a fixed conveying line, a movable conveying line and a downward pressing buffer spring, and the surface of the support frame is connected with the fixed conveying line which can slide up and down.

[0013] Preferably, the width-adjusting screw module is provided with two groups, the two groups of width-adjusting screw modules are fixedly connected at the two sides of the support frame, and the movable conveying line which can move up and down is connected on the slide block between the adjacent width-adjusting screw modules, and the two ends of the movable conveying line and the fixed conveying line are both fixedly connected with downward pressing buffer springs, the bottom ends of the downward pressing buffer springs are respectively fixedly connected with the slide block of the width-adjusting screw module and the support frame.

[0014] Preferably, the floating connection assembly is composed of a through slot, a screw rod and a screw groove, the through slot is arranged at the four corner positions of the machine needle plate, one side of the through slot is provided with the screw groove which is arranged on the surface of the pushing frame, the screw rod is arranged in the through slot and screwed with the automatic feeding machine, and the screw rod has a gap when penetrating through the through slot.

[0015] Compared with the prior art, the full-automatic testing machine for PCBA has the advantages that: the automatic feeding machine, the automatic testing machine and the automatic feeding machine are arranged, so that the automation degree and the work efficiency are improved; the electric lifting and downward pressing module is arranged, so that the insertion and combination of the upper and lower surfaces of the PCBA and the jig are realized by using one power source, and the problem that two power sources are needed to realize the insertion and combination of the upper and lower surfaces of the PCBA and the jig in the prior art is solved; moreover, the floating connection assembly is arranged, so that the machine needle plate is in a floating state and is not fixed firmly, so that the jig needle plate and the machine needle plate can be completely inserted when being inserted, and the phenomenon that some needles cannot be inserted is avoided; meanwhile, the conveying and downward pressing mechanism is arranged, so that the detection function of PCBA with different widths is realized, and the compatibility during detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional appearance structure schematic view of the present application;

[0017] Figure 2 It is an internal structure schematic view of the present application;

[0018] Figure 3 It is an internal enlarged structure schematic view of the present application;

[0019] Figure 4 It is an automatic feeding machine enlarged structure schematic view of the present application;

[0020] Figure 5 It is an automatic testing machine internal enlarged structure schematic view of the present application;

[0021] Figure 6 The upper die pressing mechanism of the present application is shown in the exploded view;

[0022] Figure 7 The upper die pressing mechanism of the present application is shown in the enlarged view;

[0023] Figure 8 The conveying and lower die mechanism of the present application is shown in the enlarged view;

[0024] Figure 9 The lower die jig of the present application is shown in the oblique view;

[0025] Figure 10 The floating connection assembly of the present application is shown in the cross-sectional view.

[0026] In the figure: 1, automatic feeding machine; 11, feeding machine cabinet; 12, cage servo lifting module; 13, cage conveying line; 14, width-adjustable product conveying line; 15, air cylinder push plate module; 2, automatic testing machine; 21, testing machine cabinet; 3, automatic discharging machine; 31, discharging machine cabinet; 32, OK cage servo lifting module; 33, rotary push plate module; 34, NG cage servo lifting module; 35, cage conveying line; 4, testing machine; 5, upper die pressing mechanism; 51, carrier; 52, lifting carrier plate; 53, electric lifting and pressing module; 54, spring pressing strip; 55, upper die jig; 6, conveying and lower die mechanism; 61, support frame; 62, adjustable conveying line; 621, width-adjusting screw module; 622, fixed conveying line; 623, movable conveying line; 624, pressing buffer spring; 63, pushing air cylinder; 64, pushing frame; 7, lower die jig; 8, jig needle plate; 9, machine needle plate; 10, floating connection assembly; 101, through slot; 102, screw; 103, screw groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. In addition, the terms “first”, “second”, “third”, “upper”, “lower”, “left”, “right” and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Meanwhile, in the description of the present application, unless otherwise explicitly specified and limited, the terms “connected” and “connected” should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0028] The application provides a full-automatic testing machine for a PCBA, which is shown in Figure 1 , Figure 2 and Figure 4 , and comprises an automatic feeding machine 1, an automatic testing machine 2 and an automatic discharging machine 3 arranged side by side from left to right, wherein the automatic feeding machine 1 comprises a feeding machine cabinet 11, a cage servo lifting module 12, a cage conveying line 13, a width-adjustable product conveying line 14 and a cylinder push plate module 15, the cage conveying line 13 is fixed on the upper and lower layers of the feeding machine cabinet 11, and the cage servo lifting module 12 is installed on the surface of the feeding machine cabinet 11 and located at one side of the cage conveying line 13; the width-adjustable product conveying line 14 and the cylinder push plate module 15 are installed on the top of the feeding machine cabinet 11, the cylinder push plate module 15 is used for pushing the PCBA to be tested in the cage of the cage servo lifting module 12 to the cylinder push plate module 15 and conveying the PCBA to the inside of the automatic testing machine 2 to realize feeding work.

[0029] In implementation, the cage conveying line 13 on the lower layer in the feeding machine cabinet 11 is used for conveying the full cage to the cage servo lifting module 12 and lifting the cage by the cage servo lifting module 12, after lifting, the PCBA in the cage is pushed to the cylinder push plate module 15 by the cylinder push plate module 15, the cylinder push plate module 15 is used for feeding the automatic testing machine 2, when the feeding of the PCBA in the cage is completed, the empty cage is conveyed out by the cage conveying line 13 on the upper layer.

[0030] Further, as shown in Figure 2 , Figure 3 and Figure 4 , the automatic discharging machine 3 is composed of a discharging machine cabinet 31, an OK cage servo lifting module 32, a rotary push plate module 33, an NG cage servo lifting module 34 and a cage conveying line 35, the cage conveying line 35 is fixed on the upper and lower layers of the discharging machine cabinet 31, the OK cage servo lifting module 32 and the NG cage servo lifting module 34 are respectively installed on the surface of the discharging machine cabinet 31 and located at one side of the cage conveying line 35; the width-adjustable rotary push plate module 33 is installed on the surface of the discharging machine cabinet 31, and the rotary push plate module 33 is used for rotating and discharging the PCBA after being detected by the automatic testing machine 2, the appropriate PCBA is discharged into the OK cage servo lifting module 32, and the unqualified PCBA is discharged into the NG cage servo lifting module 34 after being rotated.

[0031] In implementation, the unqualified PCBA is rotated to 90 degrees by the rotating push plate module 33 and then conveyed into the cage of the NG cage servo lifting module 34, while the qualified PCBA is conveyed into the cage of the OK cage servo lifting module 32 by the rotating push plate module 33, the OK cage servo lifting module 32 is lowered after the cage is full to pass through the lower cage conveying line 35 for delivery, and the upper cage conveying line 35 conveys the empty cage to the OK cage servo lifting module 32 for receiving.

[0032] Further, as shown in Figure 5 and Figure 6 , the automatic test machine 2 is composed of a test machine cabinet 21, a test machine table 4, an upper mold pressing down mechanism 5, and a conveying and lower mold mechanism 6, the test machine cabinet 21 is arranged between the feeding machine cabinet 11 and the discharging machine cabinet 31, and the bottom end of the test machine cabinet 21 is provided with the test machine table 4; the top end of the test machine cabinet 21 is connected with the upper mold pressing down mechanism 5, the inside of the test machine cabinet 21 and below the upper mold pressing down mechanism 5 is provided with the conveying and lower mold mechanism 6, the inside of the conveying and lower mold mechanism 6 is inserted with the lower mold jig 7 with a blocking cylinder, and the surface of the lower mold jig 7 is fixed with two groups of jig needle plates 8, and the lower mold jig 7 cooperates with the test machine table 4, the upper mold pressing down mechanism 5, and the conveying and lower mold mechanism 6 for the pressing down detection work of the PCBA.

[0033] In implementation, the PCBA on the surface of the conveying and lower mold mechanism 6 is pressed down by the upper mold pressing down mechanism 5, and finally the detection is realized by the test machine table 4.

[0034] Further, as shown in Figure 6 and Figure 7 , the upper mold pressing down mechanism 5 includes a carrier 51, a lifting carrier plate 52, an electric lifting and pressing down module 53, a spring pressing strip 54, and an upper mold jig 55, the carrier 51 is fixedly connected to the surface of the test machine cabinet 21, the inside of the carrier 51 is slidingly connected with the lifting carrier plate 52 with a locking cylinder in the middle, the electric lifting and pressing down module 53 is installed between the lifting carrier plate 52 and the carrier 51, and the electric lifting and pressing down module 53 is used to drive the lifting carrier plate 52 to realize the pressing down work; the bottom end of the lifting carrier plate 52 is inserted with the upper mold jig 55, the upper mold jig 55 is inserted and then pressed down and locked by the locking cylinder, the upper mold jig 55 is used for detecting the upper surface of the PCBA, and the spring pressing strip 54 is installed on both sides of the lifting carrier plate 52, which is used for buffering work when pressing down.

[0035] In implementation, then the electric lifting and pressing down module 53 in the inside of the carrier 51 drives the lifting carrier plate 52 to press down, which makes the upper mold jig 55 and the upper surface of the PCBA insert together when pressing down, and then continues to press down, so that the PCBA on the surface of the adjustable conveying line 62 is pressed down to the lower surface and the upper surface of the lower mold jig 7.

[0036] Further, as shown inFigure 8 And Figure 9 As shown in the drawings, the conveying and lower mold mechanism 6 is composed of a support frame 61, an adjustable conveying line 62, a pushing cylinder 63 and a pushing frame 64, the support frame 61 is fixedly connected to the inside of the test cabinet 21, the surface of the support frame 61 is provided with a pressing cylinder, the inside of the support frame 61 is provided with the pushing cylinder 63, the output end of the pushing cylinder 63 is fixedly provided with the pushing frame 64, and the surface of the pushing frame 64 is connected with two sets of machine needle plates 9 through the floating connection assembly 10. After the lower mold jig 7 is inserted into the inside of the support frame 61, the jig needle plate 8 on the surface of the pushing frame 64 and the machine needle plate 9 on the surface of the lower mold jig 7 are inserted and docked with each other through the pressing cylinder on the support frame 61 and the pushing cylinder 63.

[0037] In implementation, according to the type of the PCBA, the corresponding upper mold jig 55 and lower mold jig 7 are respectively inserted into the lifting loading plate 52 and the inside of the support frame 61, and the upper mold jig 55 and the lower mold jig 7 are respectively fixed after being inserted through the locking cylinder and the pressing cylinder; the PCBA fed on the cylinder pushing plate module 15 enters the adjustable conveying line 62 and is blocked by the blocking cylinder on the surface of the lower mold jig 7.

[0038] Further, as shown in the drawings, Figure 7 And Figure 8 As shown in the drawings, the surface of the support frame 61 is also connected with the adjustable conveying line 62, which is used to receive the PCBA fed from the width-adjustable product conveying line 14 and realize conveying work; the adjustable conveying line 62 comprises a width-adjusting screw module 621, a fixed conveying line 622, a movable conveying line 623 and a pressing buffer spring 624, the surface of the support frame 61 is connected with the fixed conveying line 622 which can slide up and down, the width-adjusting screw module 621 is provided with two sets, the two sets of width-adjusting screw modules 621 are fixedly connected to the two sides of the support frame 61, and the movable conveying line 623 which can move up and down is connected to the slide seat between the adjacent width-adjusting screw modules 621, the two ends of the movable conveying line 623 and the fixed conveying line 622 are fixedly connected with the pressing buffer springs 624, and the bottom ends of the pressing buffer springs 624 in the movable conveying line 623 and the fixed conveying line 622 are respectively fixedly connected with the slide seats of the width-adjusting screw modules 621 and the support frame 61.

[0039] In implementation, the movable conveying line 623 is driven to move by the width-adjusting screw module 621, so that the distance between the movable conveying line 623 and the fixed conveying line 622 changes.

[0040] Further, as shown in the drawings, Figure 9 And Figure 10As shown, the floating connection assembly 10 is composed of a through slot 101, a screw rod 102 and a screw groove 103, the through slot 101 is arranged at four corner positions of the machine needle plate 9, one side of the through slot 101 is provided with the screw groove 103 arranged on the surface of the pushing frame 64, the inside of the through slot 101 is provided with the screw rod 102, the screw rod 102 penetrates through the through slot 101 and is screwed with the automatic feeding machine 3, and the screw rod 102 has a gap when penetrating through the through slot 101, so that the machine needle plate 9 can realize floating in the up-down and left-right directions.

[0041] In implementation, the machine needle plate 9 and the pushing frame 64 are connected through the floating connection assembly 10, so that the screw rod 102 only penetrates through the through slot 101 and is fixed with the screw groove 103, and the machine needle plate 9 is in a floating state and is not firmly fixed, so that the jig needle plate 8 and the machine needle plate 9 can be completely inserted when being inserted.

[0042] Working principle: in use, first, according to the type of PCBA, the corresponding upper die jig 55 and lower die jig 7 are inserted into the lifting carrier plate 52 and support frame 61 respectively, the upper die jig 55 and lower die jig 7 are fixed after being inserted through the locking cylinder and the pressing cylinder respectively, then the pushing cylinder 63 pushes the machine needle plate 9 on the surface of the pushing frame 64 and the jig needle plate 8 on the surface of the lower die jig 7 to insert, and because the machine needle plate 9 and the pushing frame 64 are connected through the floating connection assembly 10, so that the screw rod 102 only penetrates through the through slot 101 and is fixed with the screw groove 103, and the machine needle plate 9 is in a floating state and is not firmly fixed, so that the jig needle plate 8 and the machine needle plate 9 can be completely inserted when being inserted, avoiding the phenomenon that part of the needles cannot be inserted.

[0043] Subsequently, the width-adjustable product conveying line 14, the rotating push plate module 33 and the adjustable conveying line 62 are adjusted according to the width requirement of the PCBA, and when adjusting, the movable conveying line 623 is driven to move through the width-adjusting screw rod module 621, so that the distance between the movable conveying line 623 and the fixed conveying line 622 changes, so that the detection function of PCBA with different widths is realized, thereby improving the compatibility during detection.

[0044] During detection, the automatic feeding machine 1 is used to feed the automatic test machine 2, and when feeding, the full cage conveying line 13 in the lower layer of the feeding cabinet 11 is used to convey the full cage to the cage servo lifting module 12 and lift the cage by the cage servo lifting module 12, after lifting, the cylinder push plate module 15 pushes the PCBA in the cage to the cylinder push plate module 15, and the cylinder push plate module 15 feeds the automatic test machine 2, and when the PCBA in the cage is fed, the empty cage is conveyed out through the cage conveying line 13 in the upper layer.

[0045] Subsequently, the PCBA loaded on the cylinder push plate module 15 will enter the adjustable conveying line 62 and be blocked by the blocking cylinder on the surface of the lower mold jig 7, and then be pressed down by the electric lifting and pressing module 53 in the carrier 51 to drive the lifting carrier plate 52 to press down, which will make the upper mold jig 55 and the upper surface of the PCBA insert, and then continue to press down, so that the PCBA on the surface of the adjustable conveying line 62 is pressed down to the lower surface and the upper surface of the lower mold jig 7. In the pressing process, the spring pressing strip 54 and the pressing buffer spring 624 cooperate to realize the buffering work during pressing. At the same time, the present application realizes the insertion function of the upper and lower surfaces of the PCBA by using one power source, which solves the problem that two power sources are needed to realize the insertion work of the upper and lower surfaces of the PCBA and the jig in the prior art.

[0046] After pressing and inserting, the detection is realized by the test machine 4, and the PCBA after detection is unloaded by the automatic unloader 3. During unloading, the unqualified PCBA is conveyed to the cage in the NG cage servo lifting module 34 after being rotated to ninety degrees by the rotating push plate module 33, while the qualified PCBA is conveyed to the cage in the OK cage servo lifting module 32 by the rotating push plate module 33. After the cage is full, the OK cage servo lifting module 32 moves down to send out through the lower cage conveying line 35, while the upper cage conveying line 35 conveys the empty cage to the OK cage servo lifting module 32 to realize material receiving.

[0047] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A full-automatic testing machine for PCBA, comprising an automatic feeding machine (1), an automatic testing machine (2) and an automatic discharging machine (3) placed side by side from left to right, characterized in that: The automatic testing machine (2) is composed of a testing cabinet (21), a testing table (4), an upper mold pressing mechanism (5) and a conveying and lower mold mechanism (6), the bottom end of the testing cabinet (21) is provided with the testing table (4); the top end of the testing cabinet (21) is connected with the upper mold pressing mechanism (5), the inside of the testing cabinet (21) and below the upper mold pressing mechanism (5) is provided with the conveying and lower mold mechanism (6), the inside of the conveying and lower mold mechanism (6) is inserted with the lower mold jig (7), and the surface of the lower mold jig (7) is fixed with two groups of jig needle plates (8), the lower mold jig (7) is used for the pressing detection work of the PCBA in cooperation with the testing table (4), the upper mold pressing mechanism (5) and the conveying and lower mold mechanism (6); The automatic feeding machine (1) comprises a feeding cabinet (11), a cage servo lifting module (12), a cage conveying line (13), a width-adjustable product conveying line (14) and a cylinder push plate module (15), the upper and lower layers of the feeding cabinet (11) are fixed with the cage conveying line (13), the surface of the feeding cabinet (11) and on one side of the cage conveying line (13) is provided with the cage servo lifting module (12), the top of the feeding cabinet (11) is provided with the width-adjustable product conveying line (14) and the cylinder push plate module (15), the cylinder push plate module (15) is used for pushing the PCBA to be tested in the cage of the cage servo lifting module (12) to the cylinder push plate module (15) and conveying the PCBA to be tested to the inside of the automatic testing machine (2) to realize the feeding work; The automatic feeding machine (1) comprises a feeding cabinet (11), a cage servo lifting module (12), a cage conveying line (13), a width-adjustable product conveying line (14) and a cylinder push plate module (15), the upper and lower layers of the feeding cabinet (11) are fixed with the cage conveying line (13), the surface of the feeding cabinet (11) and on one side of the cage conveying line (13) is provided with the cage servo lifting module (12), the top of the feeding cabinet (11) is provided with the width-adjustable product conveying line (14) and the cylinder push plate module (15), the cylinder push plate module (15) is used for pushing the PCBA to be tested in the cage of the cage servo lifting module (12) to the cylinder push plate module (15) and conveying the PCBA to be tested to the inside of the automatic testing machine (2) to realize the feeding work; The automatic feeding machine (1) comprises a feeding cabinet (11), a cage servo lifting module (12), a cage conveying line (13), a width-adjustable product conveying line (14) and a cylinder push plate module (15), the upper and lower layers of the feeding cabinet (11) are fixed with the cage conveying line (13), the surface of the feeding cabinet (11) and on one side of the cage conveying line (13) is provided with the cage servo lifting module (12), the top of the feeding cabinet (11) is provided with the width-adjustable product conveying line (14) and the cylinder push plate module (15), the cylinder push plate module (15) is used for pushing the PCBA to be tested in the cage of the cage servo lifting module (12) to the cylinder push plate module (15) and conveying the PCBA to be tested to the inside of the automatic testing machine (2) to realize the feeding work; The upper die pressing mechanism (5) comprises a carrier (51), a lifting carrier plate (52), an electric lifting and pressing die module (53), a spring pressing strip (54) and an upper die jig (55), the carrier (51) is fixedly connected to the surface of the test cabinet (21), and the lifting carrier plate (52) is slidably connected to the inside of the carrier (51), the electric lifting and pressing die module (53) is installed between the lifting carrier plate (52) and the carrier (51), and is used for pushing the lifting carrier plate (52) to realize the pressing work; the bottom end of the lifting carrier plate (52) is inserted with the upper die jig (55), the upper die jig (55) is used for detecting the upper surface of the PCBA, and the spring pressing strip (54) is installed on both sides of the lifting carrier plate (52), and is used for buffering when pressing; The conveying and lower die mechanism (6) is composed of a support frame (61), an adjustable conveying line (62), a pushing cylinder (63) and a pushing frame (64), the support frame (61) is fixedly connected to the inside of the test cabinet (21), the pushing cylinder (63) is installed in the inside of the support frame (61), the output end of the pushing cylinder (63) is fixedly connected with the pushing frame (64), and the surface of the pushing frame (64) is connected with two groups of machine needle plates (9) through the floating connection assembly (10), after the lower die jig (7) is inserted into the inside of the support frame (61), the jig needle plate (8) on the surface of the pushing frame (64) and the machine needle plate (9) on the surface of the lower die jig (7) are inserted and connected with each other, and the surface of the support frame (61) is also connected with the adjustable conveying line (62), which is used for receiving the PCBA fed by the width-adjustable product conveying line (14) and realizing the conveying work; the adjustable conveying line (62) comprises a width-adjusting screw module (621), a fixed conveying line (622), a movable conveying line (623) and a pressing buffer spring (624), and the surface of the support frame (61) is connected with the fixed conveying line (622) which can slide up and down.

2. The full-automatic testing machine for PCBA according to claim 1, characterized in that: The width-adjusting screw module (621) is provided with two groups, the two groups of width-adjusting screw modules (621) are fixedly connected to the two sides of the support frame (61), the movable conveying line (623) which can move up and down is connected to the sliding seat between the adjacent width-adjusting screw modules (621), the two ends of the movable conveying line (623) and the fixed conveying line (622) are fixedly connected with the pressing buffer spring (624), and the bottom end of the pressing buffer spring (624) is fixedly connected with the sliding seat of the width-adjusting screw module (621) and the support frame (61) respectively.

3. The full-automatic testing machine for PCBA according to claim 1, characterized in that: Said floating connection assembly (10) is composed of a through groove (101), a screw rod (102) and a screw groove (103), the through groove (101) is arranged at four corner positions of a machine needle plate (9), one side of the through groove (101) is provided with the screw groove (103) arranged on the surface of a pushing frame (64), the inside of the through groove (101) is provided with the screw rod (102), the screw rod (102) penetrates the through groove (101) and is screwed with an automatic blanking machine (3), and the screw rod (102) has a gap when penetrating the through groove (101).

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