USB connector automatic assembly device and assembly method

Abstract

The present invention discloses an automatic assembly device for a USB connector and an assembly method thereof, comprising: a base, wherein the base is fixedly placed on a USB wire to be welded; a first movable block and a second movable block, which are arranged at the front end of the base; a shelf, which is fixed at the front end of the base, and the top of which is fitted to the USB wire to be welded; and a baffle, which is arranged on the first movable block in a retractable manner and is arranged between the first movable block and the second movable block. The present invention drives the baffle downward by the drive of a first cylinder, and the downward-moving baffle cooperates with the shelf to press on the USB wire, thereby arranging the four wires in the USB into four parallel linear arrangements. Maintaining this pressing state can stabilize the linear arrangement between the four wires, realize the state of separating and firmly separating the four wires in the USB wire, avoid the four wires from being reunited, and facilitate the operation of welding the wires to the corresponding electrical interface on the PCB board.

Description

Technical Field

[0001] The present invention relates to the technical field of welding assembly, and in particular to an automatic assembly device for a USB connector and an assembly method thereof. Background Art

[0002] The USB connector, a universal serial bus connector, is a standard for serial bus and a technical specification for input and output interfaces. It is frequently used in 3C digital products, such as computers, mobile phones, printers, game consoles, etc., and is known as a universal interface.

[0003] The USB connector includes a PCB board, which typically has four electrical interfaces that are welded to corresponding USB cables. The four electrical interfaces are welded to two power cables and two data cables. During the actual welding and assembly process, before welding the USB cable to the PCB board, an operator needs to manually separate the four wires in the USB cable one by one and weld them to the corresponding electrical interfaces on the PCB board. However, the inventors have found that manually separating the four wires in the same USB cable cannot fix the separated state, and the four wires are prone to reapproaching each other. As a result, the four wires do not accurately correspond to the four electrical interfaces on the PCB board, which is not conducive to the operation of each corresponding electrical interface welded on the PCB board and is prone to biased welding and cold welding. Summary of the Invention

[0004] The purpose of the present invention is to provide a USB connector automatic assembly device and an assembly method thereof to stabilize the correspondence between the four conductors in the USB cable and their respective electrical interfaces.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A USB connector automatic assembly device and an assembly method thereof, comprising:

[0007] A base, the base being used to securely hold the USB cable to be soldered;

[0008] A first moving block and a second moving block are arranged at the front end of the base;

[0009] A shelf plate is fixed to the front end of the base, with the top thereof being adapted to hold the USB cable to be soldered;

[0010] a baffle, arranged on the first moving block in a retractable manner and arranged between the first moving block and the second moving block;

[0011] When the first moving block and the second moving block are driven to move downward, the baffle moves downward synchronously, which can press the USB wire to be welded so that the four wires inside it are kept in a side-by-side linear arrangement.

[0012] Preferably, a accommodating groove is provided on the base, the top of the accommodating groove is flush with the top of the base, the bottom of the accommodating groove is semicircular, and is adapted to the outer diameter of the USB cable. Two rectangular grooves are also provided in the base, and the two rectangular grooves are respectively located on both sides of the accommodating groove. A card block is slidably connected in the rectangular groove, and the card block is set in an arc on the side facing the accommodating groove. A clamping groove is provided above the rectangular groove, and the clamping groove is connected to the corresponding rectangular groove. A cross bar is fixedly connected horizontally in the clamping groove, and the cross bar is sleeved with a slider, and the slider is slidably connected to the clamping groove. The slider is fixedly connected to the card block, and a first compression spring is also provided on the outer wall of the cross bar, and the two ends of the first compression spring are respectively connected to the inner wall of the clamping groove and the slider.

[0013] Preferably, the first moving block and the second moving block are respectively located on both sides of the accommodating groove, and a first cylinder is installed on both sides of the base. The output end of the first cylinder is fixedly connected to a fixed plate, and the fixed plate is fixedly connected to the corresponding first moving block and second moving block. The upper side of the baffle has an arc surface and the lower side has a smooth straight surface. The length of the baffle is the distance between the first moving block and the second moving block.

[0014] Preferably, a sliding groove is provided in the first movable block, the inner wall of the sliding groove is slidably connected to the slide, a second compression spring is arranged inside the sliding groove, the two ends of the second compression spring are respectively connected to the slide and the inner wall of the sliding groove, the slide is fixedly connected to the baffle, and the elastic force of the second compression spring makes the baffle tightly attached to the second movable block.

[0015] Preferably, the second movable block is rotatably connected to the fan-shaped plate, the fan-shaped plate is fixedly connected to the folding plate, and a plurality of teeth are fixedly connected at equal distances on the outer edge of the fan-shaped plate. The second cylinder is installed on the second movable block, and the output end of the second cylinder is fixedly connected to the rack, and the rack is meshed with the plurality of teeth. The folding plate is fixedly connected to three partition plates, namely a first partition plate located in the middle and two second partition plates located on both sides of the first partition plate. The distance between the first partition plate and the second partition plate is the diameter of the wire.

[0016] Preferably, a thickening component is added to the first partition plate and the two second partition plates, the length of the second partition plate is half of the first partition plate, and the thickening component is a groove body opened on the front side of the first partition plate, and the groove body passes through the first partition plate. Metal elastic sheets are arranged on both sides of the groove body, and the size of the metal elastic sheet is the same as the size of the groove body. One side of the metal elastic sheet is fixedly connected to the inner wall of the groove body, and the other three sides are in contact with the inner wall of the groove body. A support plate is arranged between the two metal elastic sheets, and the two sides of the support plate are fixedly connected to the two metal elastic sheets. When the support plate slides outward in the groove body, the two metal elastic sheets in the groove body are deformed to bend outward.

[0017] Preferably, three servo motors are installed on the folding plate, and the output end of the servo motor is fixed to a winding drum corresponding to the three support plates respectively. Wire is wound around the outer wall of the winding drum, and the free end of the wire is connected to the support plate. When the winding drum is wound, it pulls the support plate to slide outward, thereby causing the metal elastic sheet to bend outward and deform.

[0018] Preferably, an extension plate is fixedly connected to the shelf plate, an extension groove is provided on the extension plate, and the extension groove passes through the extension plate. Four support blocks are arranged above the extension plate, and the support blocks have brackets, which are adapted to the metal parts of the wires. The support blocks are also fixedly connected to limit blocks, and the limit blocks pass through the extension groove and contact the bottom of the extension plate.

[0019] The assembly method of the USB connector automatic assembly device includes the following steps:

[0020] Press the USB cable into the bottom of the receiving slot from top to bottom. When pressed in, it contacts the two clamping blocks. The clamping blocks, through the elastic force of the first compression spring, press the USB cable placed at the bottom of the receiving slot, thereby stabilizing the USB cable at the bottom of the receiving slot and preventing it from sliding around.

[0021] The first cylinder is activated to drive the first moving block and the second moving block downward, thereby driving the baffle to move downward synchronously. The USB cable is clamped by the baffle's straight surface and the shelf plate, so that the four wires are arranged in a linear and stable manner, thereby separating and firmly separating the four wires in the USB cable.

[0022] The second cylinder is activated, and the rack and the latch teeth are engaged with each other to drive the sector plate to rotate, so that the first partition plate and the two second partition plates are inserted between the four wires. The thickness between the first partition plate and the two second partition plates increases the distance between the four wires, thereby expanding the distance between the metal parts in adjacent wires, thereby preventing the metal parts in the individual wires from being welded together due to accidental welding;

[0023] Start the servo motor to make the reel reel up the wire, thereby pulling the outward support plate, causing the metal elastic sheets on both sides to bend outward, thereby pushing the wires outward, thereby increasing the distance between the wires;

[0024] Each bracket block can keep the metal part of the wire in a horizontal state in the bracket.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention drives the baffle downward by the driving of the first cylinder. The downward-moving baffle cooperates with the shelf plate to press on the USB cable body, so that the four wires in the USB can be arranged into four side-by-side linear arrangements. Maintaining this pressing state can stabilize the linear arrangement between the four wires, realize the state of separating and firmly separating the four wires in the USB cable body, avoid the four wires from being reunited, and facilitate the operation of soldering the wires to the corresponding electrical interfaces on the PCB board.

[0027] 2. In the present invention, the first separator and the two second separators are inserted between the four wires at the same time. The distance between the four wires is increased by the thickness between the first separator and the two second separators, thereby expanding the distance between the metal parts in adjacent wires, thereby avoiding the metal parts in each wire from being combined with each other due to accidental welding during welding.

[0028] 3. In the present invention, the driving support plate slides outward in the trough body, and the two metal elastic sheets in the trough body are deformed to bend outward, thereby pushing the wires outward, thereby increasing the distance between the wires, and at the same time controlling the winding degree of the winding drum, which can control the distance between the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of the USB connector automatic assembly device proposed by the present invention;

[0030] Figure 2 This is a schematic cross-sectional view of the base in the USB connector automatic assembly device proposed by the present invention;

[0031] Figure 3 This is a schematic cross-sectional view of the first moving block in the USB connector automatic assembly device proposed by the present invention;

[0032] Figure 4 This is a schematic diagram of the connection structure between the second moving block and the folding plate in the USB connector automatic assembly device proposed by the present invention;

[0033] Figure 5 This is a schematic diagram of the folding plate and the structure thereon in the USB connector automatic assembly device proposed by the present invention;

[0034] Figure 6This is a schematic diagram of the structural decomposition of the first partition plate in the USB connector automatic assembly device proposed by the present invention;

[0035] Figure 7 This is a schematic structural diagram of the two metal elastic sheets in the first partition plate of the USB connector automatic assembly device proposed by the present invention being bent outward;

[0036] Figure 8 This is a schematic structural diagram of the extension plate, support block, and limit block in the USB connector automatic assembly device proposed by the present invention;

[0037] Figure 9 This is a partial structural diagram of the USB cable;

[0038] Figure 10 This is a schematic diagram of the structure where the four wires in a USB cable change from a circular equidistant arrangement to a linear arrangement.

[0039] In the figure: 1. base; 2. accommodating groove; 3. rectangular groove; 4. clamping block; 5. clamping groove; 6. cross bar; 7. slider; 8. first compression spring; 9. first moving block; 10. second moving block; 11. first cylinder; 12. fixed plate; 13. baffle; 14. slide; 15. slide plate; 16. second compression spring; 17. shelf plate; 18. fan-shaped plate; 19. folding plate; 20. clamping tooth; 21. second cylinder; 22. rack; 23. first partition plate; 24. second partition plate; 25. trough body; 26. metal elastic sheet; 27. support plate; 28. servo motor; 29. take-up drum; 30. wire; 31. extension plate; 32. extension groove; 33. support block; 34. bracket; 35. limit block. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] Reference Attachment Figure 1 -Attached Figure 10 :

[0042] Example 1:

[0043] The USB connector automatic assembly device includes a base 1, a receiving groove 2 is provided on the base 1, the top of the receiving groove 2 is flush with the top of the base 1, the bottom of the receiving groove 2 is semicircular, and is adapted to the outer diameter of the USB cable. Two rectangular grooves 3 are also provided in the base 1, and the two rectangular grooves 3 are respectively located on both sides of the receiving groove 2. A card block 4 is slidably connected in the rectangular groove 3, and the side of the card block 4 facing the receiving groove 2 is an arc setting. A clamping groove 5 is provided above the rectangular groove 3, and the clamping groove 5 is connected to the corresponding rectangular groove 3. A crossbar 6 is fixedly connected transversely in the clamping groove 5, and the crossbar 6 is sleeved with a slider 7. The slider 7 is slidably connected to the clamping groove 5, and the slider 7 is fixedly connected to the clamping block 4. A first compression spring 8 is also sleeved on the outer wall of the crossbar 6. The two ends of the first compression spring 8 are respectively connected to the inner wall of the clamping groove 5 and the slider 7. Under the elastic force of the compression spring, the arc side of the clamping block 4 is pressed into the interior of the accommodating groove 2, thereby resisting and squeezing the USB cable placed at the bottom of the accommodating groove 2, thereby stabilizing the USB cable at the bottom of the accommodating groove 2 and preventing it from sliding freely.

[0044] Two movable blocks that can slide up and down are set on one side of the base 1, namely the first movable block 9 and the second movable block 10, and are respectively located on both sides of the accommodating groove 2. A first cylinder 11 is installed on both sides of the base 1. The output end of the first cylinder 11 is fixedly connected to the fixed plate 12. The fixed plate 12 is fixedly connected to the corresponding movable block. The up and down sliding of the movable block can be controlled by controlling the first cylinder 11. A baffle 13 is elastically set on one of the movable blocks. The upper side of the baffle 13 has an arc surface and the lower side has a smooth straight surface. The length of the baffle 13 is the distance between the first movable block 9 and the second movable block 10;

[0045] The first movable block 9 is provided with a slide groove 14, and the inner wall of the slide groove 14 is slidably connected to the slide plate 15, and a second compression spring 16 is provided inside the slide groove 14, and the two ends of the second compression spring 16 are respectively connected to the slide plate 15 and the inner wall of the slide groove 14, and the slide plate 15 is fixedly connected to the baffle 13, and the elastic force of the second compression spring 16 makes the baffle 13 and the second movable block 10 tightly adhere. When the first movable block 9 and the second movable block 10 move down to the lowest point, they will fit into the shelf plate 17 fixed on one side of the base 1. At this moment, the distance between the straight surface of the baffle 13 and the shelf plate 17 is the diameter of the wire and the thickness of the USB jacket. The baffle 13 is pressed on the USB cable body to press the four wires in the USB into four side-by-side linear arrangements. Maintaining this pressing state can stabilize the linear and stable arrangement between the four wires, thereby realizing the state of separating and firmly separating the four wires in the USB cable body;

[0046] Example 2: As an improvement to Example 1, four wires are arranged linearly side by side. The distance between the metal portions of adjacent wires for welding is small, making it easier to join the metal portions of adjacent wires during welding. The distance between the four wires arranged side by side is increased by the following component for extending the distance between the four wires.

[0047] The second moving block 10 is rotatably connected to the sector plate 18, the sector plate 18 is fixedly connected to the folding plate 19, and a plurality of latch teeth 20 are fixedly connected at equal intervals on the outer edge of the sector plate 18. A second cylinder 21 is installed on the second moving block 10, and the output end of the second cylinder 21 is fixedly connected to the rack 22, which is meshed with the plurality of latch teeth 20. The folding plate 19 is fixedly connected to three partition plates, namely a first partition plate 23 located in the middle and two second partition plates 24 located on both sides of the first partition plate 23. The distance between the first partition plate 23 and the second partition plate 24 is the diameter of the wire. When the first partition plate 23 and the two second partition plates 24 are inserted between the four wires, the distance between the four wires is increased by the thickness between the first partition plate 23 and the two second partition plates 24, thereby expanding the distance between the metal parts in adjacent wires, thereby preventing the metal parts in each wire from being combined with each other due to accidental welding during welding;

[0048] Example 3: As an improvement to Example 2, since the four wires are arranged side by side, the distance between the four wires is increased by inserting the first separator 23 and the two second separators 24. This limits the thickness of the first separator 23 and the two second separators 24. The thickness must not be too large. If it is too large, it cannot be smoothly inserted between adjacent wires, and the increased distance between the four wires is not significant enough. Therefore, thickening components are added to the first separator 23 and the two second separators 24.

[0049] The length of the second partition plate 24 is half that of the first partition plate 23. The thickened component is a groove body 25 opened on the front side of the first partition plate 23. The groove body 25 passes through the first partition plate 23. Metal elastic sheets 26 are provided on both sides of the groove body 25. The size of the metal elastic sheet 26 is the same as that of the groove body 25. One side of the metal elastic sheet 26 is fixedly connected to the inner wall of the groove body 25, and the other three sides are in contact with the inner wall of the groove body 25. A support plate 27 is provided between the two metal elastic sheets 26. The two sides of the support plate 27 are fixedly connected to the two metal elastic sheets 26. When the support plate 27 slides outward in the groove body 25, the two metal elastic sheets 26 in the groove body 25 are deformed to bend outward, thereby pushing the wires outward, thereby increasing the distance between the wires.

[0050] Three servo motors 28 are installed on the folding plate 19. The output end of the servo motor 28 is fixed with a winding drum 29, which corresponds to the three supporting plates 27 respectively. The outer wall of the winding drum 29 is wound with wire 30, and the free end of the wire 30 is connected to the supporting plate 27. When the winding drum 29 is wound, it pulls the supporting plate 27 to slide outward, thereby causing the metal elastic sheet 26 to bend outward.

[0051] Example 4: Since the outward bending deformation of the metal elastic sheet 26 in the thickened component in Example 3 causes the wire to bend outward, the metal portion of the wire will be deflected accordingly and tilted. The tilt will inevitably lead to an angular deflection, thereby making oblique contact with the electrical interface of the original USB interface. Therefore, a correction component is provided on the shelf 17 to maintain the horizontal state of the metal portion of the wire;

[0052] The extension plate 31 is fixedly connected to the shelf plate 17, and the extension plate 31 has an extension groove 32, which passes through the extension plate 31. Four support blocks 33 are set above the extension plate 31, and the support blocks 33 have a bracket 34. The bracket 34 is adapted to the metal part of the wire. The support blocks 33 are also fixedly connected to the limit block 35, which passes through the extension groove 32 and contacts the bottom of the extension plate 31. Due to the deflection between the wires, the support blocks 33 will move away from each other, but the support blocks 33 will not deflect, so that the metal part of the wire can be kept in a horizontal state in the bracket 34.

[0053] Working principle:

[0054] Press the USB cable into the bottom of the receiving slot 2 from top to bottom. When pressed in, it contacts the two clamping blocks 4. The clamping blocks 4, through the elastic force of the first compression spring 8, press the USB cable placed at the bottom of the receiving slot 2, thereby stabilizing the USB cable at the bottom of the receiving slot 2 and preventing it from sliding around.

[0055] The first cylinder 11 is activated to drive the first moving block 9 and the second moving block 10 downward, thereby driving the baffle 13 to move downward synchronously. The USB cable is clamped by the straight surface of the baffle 13 and the shelf 17, so that the four wires are arranged in a linear shape and are firmly separated.

[0056] The second cylinder 21 is activated, and the rack 22 and the latch 20 are meshed with each other to drive the sector plate 18 to rotate, so that the first partition plate 23 and the two second partition plates 24 are inserted between the four wires. The thickness between the first partition plate 23 and the two second partition plates 24 increases the distance between the four wires, thereby expanding the distance between the metal parts in adjacent wires, thereby preventing the metal parts in the wires from being welded together due to accidental welding.

[0057] The servo motor 28 is started, causing the reel 29 to reel in the wire 30, thereby pulling the outward support plate 27. As the support plate 27 slides, the metal elastic sheets 26 on both sides thereof are deformed outward, thereby pushing the wires outward, thereby increasing the distance between the wires.

[0058] As the distance between the wires increases, they deflect and move away from each other, causing the support blocks 33 to move away from each other. However, the support blocks 33 will not deflect, so that the metal parts of the wires in the brackets 34 can remain horizontal.

[0059] It should be noted that the reeling degree of the reel 29 can be controlled according to the distance between the four electrical interfaces in the USB connector, thereby controlling the four wires to accurately correspond to the four electrical interfaces.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. USB connector automatic assembly device, characterized in that, include: A base (1), wherein the base (1) is used to securely place the USB cable to be welded; A first moving block (9) and a second moving block (10) are arranged at the front end of the base (1); A shelf plate (17) is fixed to the front end of the base (1), and the top of the shelf plate is adapted to accommodate the USB cable to be welded; a baffle (13) arranged on the first moving block (9) in a retractable manner and arranged between the first moving block (9) and the second moving block (10); When the first moving block (9) and the second moving block (10) are driven to move downward, the baffle (13) moves downward synchronously, and can press the USB wire to be welded so that the four wires inside it are kept in a parallel linear arrangement; The base (1) is provided with a receiving groove (2), the top of the receiving groove (2) is flush with the top of the base (1), and the bottom of the receiving groove (2) is semicircular and adapted to the outer diameter of the USB cable; The first moving block (9) and the second moving block (10) are respectively located on both sides of the accommodating groove (2), and a first cylinder (11) is installed on both sides of the base (1). The output end of the first cylinder (11) is fixedly connected to a fixed plate (12), and the fixed plate (12) is fixedly connected to the corresponding first moving block (9) and the second moving block (10). The upper side of the baffle (13) has an arc surface and the lower side has a smooth straight surface. The length of the baffle (13) is the distance between the first moving block (9) and the second moving block (10); The second moving block (10) is rotatably connected to a sector plate (18), the sector plate (18) is fixedly connected to a folding plate (19), a plurality of latch teeth (20) are fixedly connected to the outer edge of the sector plate (18) at equal intervals, a second cylinder (21) is installed on the second moving block (10), an output end of the second cylinder (21) is fixedly connected to a rack (22), the rack (22) is meshedly connected to the plurality of latch teeth (20), the folding plate (19) is fixedly connected to three partition plates, namely a first partition plate (23) located in the middle and two second partition plates (24) located on both sides of the first partition plate (23), and the distance between the first partition plate (23) and the second partition plate (24) is the diameter of the wire; A thickening component is added to the first partition plate (23) and the two second partition plates (24). The length of the second partition plate (24) is half of the length of the first partition plate (23). The thickening component is a groove body (25) opened on the front side of the first partition plate (23). The groove body (25) passes through the first partition plate (23). Metal elastic sheets (26) are provided on both sides of the groove body (25). The size of the metal elastic sheet (26) is the same as that of the groove body (25). One side of the metal elastic sheet (26) is fixedly connected to the inner wall of the groove body (25), and the other three sides are in contact with the inner wall of the groove body (25). A supporting plate (27) is provided between the two metal elastic sheets (26). The two sides of the supporting plate (27) are fixedly connected to the two metal elastic sheets (26). When the supporting plate (27) slides outward in the groove body (25), the two metal elastic sheets (26) in the groove body (25) are deformed to bend outward.

2. The USB connector automatic assembly device according to claim 1, characterized in that: Two rectangular grooves (3) are also provided in the base (1), and the two rectangular grooves (3) are respectively located on both sides of the accommodating groove (2). A clamping block (4) is slidably connected in the rectangular groove (3), and the side of the clamping block (4) facing the accommodating groove (2) is set in an arc. A clamping groove (5) is provided above the rectangular groove (3), and the clamping groove (5) is connected to the corresponding rectangular groove (3). A cross bar (6) is fixedly connected to the clamping groove (5) in a transverse direction, and the cross bar (6) is sleeved with a slider (7). The slider (7) is slidably connected to the clamping groove (5), and the slider (7) is fixedly connected to the clamping block (4). A first compression spring (8) is also sleeved on the outer wall of the cross bar (6), and the two ends of the first compression spring (8) are respectively connected to the inner wall of the clamping groove (5) and the slider (7).

3. The USB connector automatic assembly device according to claim 2, characterized in that: A sliding groove (14) is provided in the first movable block (9), and the inner wall of the sliding groove (14) is slidably connected to the slide plate (15). A second compression spring (16) is provided inside the sliding groove (14), and the two ends of the second compression spring (16) are respectively connected to the slide plate (15) and the inner wall of the sliding groove (14). The slide plate (15) is fixedly connected to the baffle (13), and the elastic force of the second compression spring (16) causes the baffle (13) to be in close contact with the second movable block (10).

4. The USB connector automatic assembly device according to claim 3, characterized in that: Three servo motors (28) are installed on the folding plate (19), and the output end of the servo motor (28) is fixed with a winding drum (29), which corresponds to the three supporting plates (27) respectively. The outer wall of the winding drum (29) is wound with a wire (30), and the free end of the wire (30) is connected to the supporting plate (27). When the winding drum (29) is wound, the supporting plate (27) is pulled to slide outward, thereby causing the metal elastic sheet (26) to bend outward and deform.

5. The USB connector automatic assembly device according to claim 4, characterized in that: An extension plate (31) is fixedly connected to the shelf plate (17), an extension groove (32) is provided on the extension plate (31), and the extension groove (32) passes through the extension plate (31). Four supporting blocks (33) are arranged above the extension plate (31), and the supporting blocks (33) have brackets (34) adapted to the metal portion of the wire. The supporting blocks (33) are also fixedly connected to a limiting block (35), and the limiting block (35) passes through the extension groove (32) and contacts the bottom of the extension plate (31).

6. A method for assembling a USB connector automatic assembly device, using the USB connector automatic assembly device according to claim 5, characterized in that: The following steps are involved: The USB cable is pressed from top to bottom into the bottom of the receiving groove (2), and contacts the two clamping blocks (4) when pressed in. The clamping blocks (4) press against and squeeze the USB cable placed at the bottom of the receiving groove (2) through the elastic force of the first compression spring (8), thereby stabilizing the USB cable at the bottom of the receiving groove (2) and preventing it from sliding freely. The first cylinder (11) is started to drive the first moving block (9) and the second moving block (10) to move downward, thereby driving the baffle (13) to move downward synchronously, and the USB wire body is pressed by the mutual clamping of the straight surface of the baffle (13) and the shelf plate (17), so that the four wires can be arranged in a linear and stable manner, thereby achieving a state in which the four wires in the USB wire body are separated and stably separated; The second cylinder (21) is started, and the rack (22) and the latch (20) are meshed with each other to drive the sector plate (18) to rotate, so that the first partition plate (23) and the two second partition plates (24) are inserted between the four wires, and the distance between the four wires is increased by the thickness between the first partition plate (23) and the two second partition plates (24), thereby expanding the distance between the metal parts in adjacent wires, thereby preventing the metal parts in each wire from being combined with each other due to erroneous welding during welding; The servo motor (28) is started to cause the reel (29) to reel the wire (30), thereby pulling the outward support plate (27), causing the metal elastic sheets (26) on both sides thereof to bend outward, thereby pushing the wires outward, thereby increasing the distance between the wires; Each support block (33) can keep the metal portion of the wire in the bracket (34) in a horizontal state.

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