A micro display screen wire bonding device and method

Abstract

The present invention relates to the technical field of micro display screens, and specifically to a micro display screen welding wire bonding device and method, wherein the inner side of a flap is pressed onto the front end outer wall of the welding wire, the upper end of the flap is provided with an insert plate pressed onto the upper end surface of a ceramic semi-column, a limited side frame is provided on the rear side of the adjustment frame, and the insert plate is plugged into the limited side frame by a lateral drive of a driving member, and the beneficial effects are as follows: by providing a ceramic semi-column with an inner groove for a wire, the welding wire is clamped, and the welding position is adjusted by cooperating with lateral driving, lifting and lowering pressing, and at the same time, during the driving process, the flap is fixed, and the position of the welding wire is further limited by the flap, and after the welding is completed, the driving reset is used to automatically release the fixation of the welding wire, so as to achieve the purpose of automatic and efficient wire stripping, and the lifting and lowering of the support roller is used to reduce the traction on the welding wire, and improve the stability and convenience of wire stripping.

Description

Technical Field

[0001] The present invention relates to the technical field of micro display screens, and in particular to a micro display screen wire bonding device and method. Background Art

[0002] Microdisplay technology can be divided into modulated microdisplay and emissive microdisplay. Modulated microdisplay means that the light source is modulated and irradiated onto the pixel array, and then reflected or projected onto the observer. In the display field, existing microdisplays are usually cut from wafers and are often used in devices such as AR glasses.

[0003] Existing patent: CN202311022395.0 A device and method for bonding wires of a micro display screen, which relates to the technical field of bonding wires of a micro display screen, and is used to solve the technical problem of low efficiency of bonding wires of a micro display screen by a micro display screen bonding wire bonding device in the prior art. The wire bonding device includes a pad and a pressure plate; the pad is provided with a mounting groove, the mounting groove is used to mount a micro display screen, and the pad is also provided with a first positioning component, the first positioning component is used to position the micro display screen; the pressure plate is provided with an exposure hole corresponding to the mounting groove, the exposure hole is used to expose at least the bonding wire area of ​​the micro display screen, and the pressure plate is also provided with a second positioning component, the second positioning component is used to position the pressure plate on the bonding wire device. The present application can install the micro display screen in the mounting groove more quickly, more accurately, and more stably, thereby improving the efficiency and quality of bonding wires of the micro display screen.

[0004] Therefore, the prior art discloses a bonding welding technology for a display screen on a connecting frame, but for a micro display screen, an important connection position is the electrical connection between the display screen and the circuit board, and in order to reduce the thickness of the display screen, the prior art usually performs a split processing, and the micro display screen includes a display screen assembly and a circuit board assembly, and the two are connected by wire welding, and then the wires and the connected welding point positions are packaged to form an integrated structure, and then the volume of the micro display screen is relatively small, and the display screen and the circuit board need to be electrically connected through multiple groups of guided welding, so the wire welding points are small, the wires are slender, and the spacing between adjacent wires is small, making it difficult to achieve manual direct welding. The solution of the prior art is to sleeve it on a ceramic column, increase its volume to facilitate the position adjustment of the wire, and use a heating device to achieve the melting of the wire end to achieve the purpose of precise welding, but the existing wire structure is relatively thin, and it is impossible to accurately penetrate the ceramic column for insertion, and it is difficult to decouple and easy to break, making it difficult to perform continuous welding of multiple groups of welding wires. Summary of the invention

[0005] The object of the present invention is to provide a micro display screen wire bonding device and method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A micro display screen wire bonding device comprises a welding platform, a pair of material racks are symmetrically arranged on both sides of the welding platform, and a display screen and a circuit integrated board are respectively installed on the pair of material racks;

[0008] The upper end of the welding table is provided with a plurality of lifting frames with vertical lifting adjustment, the middle of the lower end of the lifting frame is provided with a support roller with adjustable height and supporting the middle section of the welding wire, a pair of adjusting frames are symmetrically provided at both ends of the lifting frame, a ceramic half-column driven laterally by a driving member is installed on the adjusting frame, the front end surface of the ceramic half-column is provided with a guide inner groove for clamping the welding wire, the end of the guide inner groove is directly facing the welding points on the display screen and the circuit integrated board, the end of the guide inner groove is provided with a heating plate for heating and melting the end of the welding wire, an elastically pressed flap is rotatably installed at the front end of the adjusting frame, the inner side of the flap is pressed on the front end outer wall of the welding wire, the upper end of the flap is provided with a plug plate pressed on the upper end surface of the ceramic half-column, a limited side frame is provided on the rear side of the adjusting frame, and the plug plate is plugged into the limited side frame by the side drive of the driving member.

[0009] Preferably, a guide rail is provided at the upper end of the welding table, and a plurality of lifting columns are slidably installed at the lower end of the guide rail, and a top block slidably inserted in the guide rail is provided at the upper end of the lifting column, and the top blocks at the upper ends of adjacent lifting columns are connected by a traction piece, and the lower end of the lifting column is connected to the lifting frame, and a cross beam is provided at the lower end of the lifting frame, and an adjusting rod is vertically provided on the cross beam, and the supporting roller is fixed to the upper end of the adjusting rod, and the adjusting rod and the traction piece are both configured as electric telescopic rods.

[0010] Preferably, a pair of adjustment frames symmetrically distributed on the left and right are fixed at both ends of the crossbeam, an upper end of the adjustment frame is provided with an adjustment groove on the side close to the supporting roller, the other end of the adjustment groove is provided with a limiting groove extending downward, the lower end of the ceramic half-column is provided with a slider slidably inserted in the adjustment groove, the lower end of the ceramic half-column is provided with a wing plate inserted in the limiting groove, the wing plate is provided with a guide column sliding through the side wall of the adjustment frame, the guide column is sleeved with a first spring, one end of the first spring is against the wing plate, and the other end of the first spring is against the inner wall of the limiting groove.

[0011] Preferably, the driving member includes a screw sleeve, a screw rod and a motor. The screw sleeve is fixed on the side of the ceramic half-column close to the lifting frame. A screw rod is inserted through the adjusting frame. One end of the screw rod is threadedly rotated and inserted into the screw sleeve, and the other end of the screw rod is connected to the motor.

[0012] Preferably, the welding table is symmetrically provided with lower sliding grooves, the lower end of the material rack is plugged into the lower sliding grooves, the upper end of the material rack is provided with a mounting groove, and the display screen and the circuit integrated board are fixed on the mounting grooves.

[0013] Preferably, a thermal insulation layer is provided at the end of the ceramic half-column facing the display screen and the circuit integrated board, an arc groove is provided at the lower end of the thermal insulation layer, a heat insulation layer is provided between the upper end of the thermal insulation layer and the ceramic half-column, symmetrically distributed telescopic splints are provided in the inner cavity of the thermal insulation layer, a heating plate for bonding the welding wire is provided on the telescopic splint, and the inner diameter of the arc groove is greater than the width of the guide inner groove.

[0014] Preferably, a rotating seat is provided at the front end of the adjusting frame, the lower end of the flap is rotatably sleeved on the rotating seat, side grooves are provided on both sides of the flap, a torsion spring is sleeved on the rotating seat, one end of the torsion spring is against the inner wall of the side groove, and the other end of the torsion spring is against the rotating seat, a pressure block facing the guide inner groove is provided on the inner wall of the flap, and the pressure block is provided with a groove that fits with the outer wall of the welding wire.

[0015] Preferably, a baffle plate for limiting the rotation angle of the flap is arranged on the outer side of the rotating seat, the baffle plate is arranged at an inclination, a slot is arranged between the lower end of the limiting side frame and the upper end surface of the ceramic half column, the width of the plug plate is greater than the width of the flap, and the plug plate is inserted into the slot.

[0016] Preferably, a plurality of groups of linearly distributed upper compression grooves are provided in the inner cavity of the guide inner groove, an upper pressure rod is slidably inserted in the upper compression groove, the end of the upper pressure rod is against the welding wire, a lower compression groove is provided at the front end of the ceramic semi-column, a lower piston rod is slidably installed in the lower compression groove, one end of the lower piston rod is provided with a second spring pressed on the inner wall of the lower compression groove, the other end of the lower piston rod extends to the outer side of the front end of the ceramic semi-column, and the lower compression groove is connected to the upper compression groove through a connecting air pipe.

[0017] A welding method implemented according to a micro display screen wire bonding device, the welding method comprising the following steps:

[0018] Step 1: Fix the display screen and the circuit integrated board on the material rack, and adjust the distance between the display screen and the circuit integrated board so that the distance is less than the length of the welding wire;

[0019] Step 2: Clamp the two ends of the welding wire into the inner guide groove on the ceramic half column, use the elastic rotation of the flap to squeeze and fix the welding wire, use the driving member to adjust the lateral position of the ceramic half column, and then fix the flap and clamp the welding wire, and the welding wire accurately corresponds to the welding point;

[0020] Step 3: Use the height-adjustable support roller to straighten the welding wire, melt the end of the welding wire into a ball, and use the lifting column to drive the lifting frame to descend, so that the end ball of the welding wire is pressed on the welding point to achieve the purpose of stable welding;

[0021] Step 4: After welding is completed, lower the support roller to release the straight state of the welding line, reset the ceramic half column, release the plug plate from the fixation, and automatically flip the flap to release the fixation of the welding line, thereby achieving automatic release.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention realizes clamping of the welding wire by arranging a ceramic half-column with an inner groove of the wire, and realizes the adjustment of the welding position by cooperating with lateral driving, lifting and lowering pressing. Meanwhile, during the driving process, the fixation of the flap is realized, and the position of the welding wire is further limited by the flap. After the welding is completed, the driving reset is utilized to automatically release the fixation of the welding wire, so as to achieve the purpose of automatic and efficient wire stripping. The lifting and lowering of the support roller is coordinated to reduce the traction of the welding wire, and improve the stability and convenience of wire stripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the welding wire clamping and fixing structure of the present invention;

[0026] Figure 3 for Figure 1 A magnified view of the structure at center;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention;

[0028] Figure 5 It is a cross-sectional view of the flap installation structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the ceramic half column of the present invention installed on the lifting frame;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of a ceramic half column of the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the flap installation of the present invention.

[0032] In the figure: 1. welding table; 2. guide rail; 3. lifting column; 4. top block; 5. traction piece; 6. lifting frame; 7. crossbeam; 8. adjustment rod; 9. adjustment frame; 10. down slide; 11. material rack; 12. display screen; 13. installation slot; 14. circuit integrated board; 15. ceramic half column; 16. guide inner slot; 17. welding wire; 18. support roller; 19. insulation layer; 20. heat insulation layer; 21. arc slot; 22. telescopic splint; 23. heating plate; 24. limit side frame; 25, guide column; 26, slot; 27, rotating seat; 28, flap; 29, plug plate; 30, screw sleeve; 31, screw rod; 32, motor; 33, slider; 34, adjustment slot; 35, wing plate; 36, first spring; 37, limit slot; 38, upper compression slot; 39, lower piston rod; 40, torsion spring; 41, baffle; 42, connecting air pipe; 43, upper pressure rod; 44, pressure block; 45, side slot; 46, second spring; 47, lower compression slot. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figures 1 to 8 , the present invention provides a technical solution:

[0035] Embodiment 1: A micro display screen wire bonding device comprises a welding table 1, a pair of material racks 11 are symmetrically arranged on both sides of the welding table 1, a display screen 12 and a circuit integrated board 14 are respectively installed on the pair of material racks 11, a sliding groove 10 is symmetrically arranged on the welding table 1, the lower end of the material rack 11 is inserted into the sliding groove 10, and an installation groove 13 is arranged at the upper end of the material rack 11, and the display screen 12 and the circuit integrated board 14 are fixed on the installation groove 13.

[0036] The lower sliding groove 10 is used to adjust the spacing distance between the left and right material racks 11, so that the distance between the display screen 12 and the circuit integrated board 14 is smaller than the length of the welding wire 17, so that after welding, the welding wire 17 is greater than the distance to avoid the welding wire 17 being straightened and broken, and the installation groove 13 is used to realize the limited fixed installation of the display screen 12 and the circuit integrated board 14.

[0037] A plurality of lifting frames 6 with vertical lifting adjustment are provided at the upper end of the welding table 1, and a support roller 18 with adjustable height and supporting the middle section of the welding line 17 is provided in the middle of the lower end of the lifting frame 6. A guide rail 2 is provided at the upper end of the welding table 1, and a plurality of lifting columns 3 are slidably installed at the lower end of the guide rail 2. A top block 4 slidably inserted in the guide rail 2 is provided at the upper end of the lifting column 3, and the top blocks 4 at the upper ends of adjacent lifting columns 3 are connected by a traction member 5. The lower end of the lifting column 3 is connected to the lifting frame 6, and a crossbeam 7 is provided at the lower end of the lifting frame 6. An adjusting rod 8 is vertically provided on the crossbeam 7, and the support roller 18 is fixed to the upper end of the adjusting rod 8. The adjusting rod 8 and the traction member 5 are both configured as electric telescopic rods.

[0038] The height of the lifting frame 6 can be adjusted by setting the lifting column 3, so that the fixed welding wire 17 can be lowered and pressed on the welding point. The front and rear sliding of the lifting frame 6 is limited by the coordinated sliding of the guide rail 2 and the top block 4. The traction member 5 is used to realize the linkage of multiple groups of lifting frames 6 to achieve continuous welding of multiple groups of welding wires 17. The height of the support roller 18 is adjusted by the adjusting rod 8, so that the welding wire 17 can be straightened and supported, ensuring that the length of each group of welding wires 17 is consistent.

[0039] A pair of adjusting frames 9 are symmetrically arranged at both ends of the lifting frame 6, and a ceramic half-column 15 driven laterally by a driving member is installed on the adjusting frame 9. The front end surface of the ceramic half-column 15 is provided with a guide inner groove 16 for clamping the welding wire 17, and the end of the guide inner groove 16 is directly opposite to the welding points on the display screen 12 and the circuit integrated board 14. The pair of adjusting frames 9 symmetrically distributed on the left and right are fixed at both ends of the crossbeam 7, and an adjusting groove 34 is arranged on the upper end of the adjusting frame 9 near the side of the supporting roller 18, and a limiting groove 37 extending downward is arranged at the other end of the adjusting groove 34. A slider 33 slidably inserted in the adjusting groove 34 is arranged at the lower end of the ceramic half-column 15, and a wing plate 35 inserted in the limiting groove 37 is arranged at the lower end of the ceramic half-column 15. A guide column 25 that slides through the side wall of the adjusting frame 9 is arranged on the wing plate 35, and a first spring 36 is sleeved on the guide column 25, one end of the first spring 36 is against the wing plate 35, and the other end of the first spring 36 is against the inner wall of the limiting groove 37.

[0040] The position of the ceramic half-column 15 is adjusted laterally by the driving member, and the cooperation of the slider 33 and the adjustment groove 34 is used to limit the lateral movement position of the ceramic half-column 15, so that the welding wire 17 clamped and limited in the guide inner groove 16 accurately corresponds to the welding point, and the cooperation of the wing plate 35 and the first spring 36 is used to realize the elastic adjustment of the ceramic half-column 15 to ensure the position stability after adjustment.

[0041] A heating plate 23 for heating and melting the end of the welding wire 17 is provided at the end of the guiding inner groove 16, and a thermal insulation layer 19 is provided at the end of the ceramic semi-column 15 facing the display screen 12 and the circuit integrated board 14, and an arc groove 21 is provided at the lower end of the thermal insulation layer 19, and a heat insulation layer 20 is provided between the upper end of the thermal insulation layer 19 and the ceramic semi-column 15, and symmetrically distributed telescopic splints 22 are provided in the inner cavity of the thermal insulation layer 19, and a heating plate 23 for fitting the welding wire 17 is provided on the telescopic splint 22, and the inner diameter of the arc groove 21 is greater than the width of the guiding inner groove 16.

[0042] The heating plate 23 is provided to melt the end of the welding wire 17 , and the welding ball is formed by cooperating with the arc groove 21 , and the welding wire 17 is further clamped and fixed by the telescopic clamping plate 22 .

[0043] The front end of the adjusting frame 9 is rotatably installed with an elastically pressed flap 28, the inner side of the flap 28 is pressed on the front end outer wall of the welding wire 17, and the upper end of the flap 28 is provided with an insert plate 29 pressed on the upper end surface of the ceramic half column 15. The rear side of the adjusting frame 9 is provided with a limited side frame 24, and the insert plate 29 is plugged into the limited side frame 24 through the lateral drive of the driving member. The driving member includes a screw sleeve 30, a screw rod 31 and a motor 32. The screw sleeve 30 is fixed on the side of the ceramic half column 15 close to the lifting frame 6. A screw rod 31 is inserted through the adjusting frame 9, one end of the screw rod 31 is threadedly rotatably inserted into the screw sleeve 30, and the other end of the screw rod 31 is connected to the motor 32.

[0044] The front end of the welding wire 17 is squeezed and fixed by flipping the flap 28. At this time, the plug plate 29 is pressed onto the upper end surface of the ceramic half-column 15. At this time, the driving member causes the ceramic half-column 15 to slide horizontally to position the welding point. At this time, as the ceramic half-column 15 slides, the plug plate 29 is inserted into the limiting side frame 24, thereby achieving the purpose of fixing the flap 28.

[0045] Working principle: First, the lower sliding groove 10 is used to adjust the spacing distance between the left and right material racks 11, so that the distance between the display screen 12 and the circuit integrated board 14 is smaller than the length of the welding wire 17, and the guiding inner groove 16 is used to limit the welding wire 17. The front end of the welding wire 17 is squeezed and fixed by flipping the flap 28. At this time, the plug plate 29 is pressed on the upper end surface of the ceramic half column 15. At this time, the driving member makes the ceramic half column 15 slide horizontally to realize the position of the welding point. The position of the ceramic half column 15 is adjusted horizontally by the driving member. As the ceramic half column 15 slides, the plug plate 29 is inserted into the limiting side frame 24 to achieve the purpose of fixing the flap 28.

[0046] The lifting column 3 is provided to adjust the height of the lifting frame 6, so that the fixed welding wire 17 is lowered and pressed on the welding point, and the height of the support roller 18 is adjusted by the adjusting rod 8, so that the welding wire 17 is straightened and supported, ensuring that the length of each group of welding wires 17 is consistent.

[0047] After welding is completed, the support roller 18 descends to release the straight state of the welding wire 17, and the driving member is used to reset the ceramic half column 15, so that the plug plate 29 is separated from the limiting side frame 24, and then the flap 28 is rotated and reset. At this time, the welding wire 17 is released and it is easy to remove the wire.

[0048] Embodiment 2: On the basis of Embodiment 1, in order to realize the elastic rotation of the flap 28, a rotating seat 27 is provided at the front end of the adjusting frame 9, and the lower end of the flap 28 is rotatably sleeved on the rotating seat 27. Side grooves 45 are provided on both sides of the flap 28. A torsion spring 40 is sleeved on the rotating seat 27, and one end of the torsion spring 40 abuts against the inner wall of the side groove 45, and the other end of the torsion spring 40 abuts against the rotating seat 27. A pressure block 44 facing the guide inner groove 16 is provided on the inner wall of the flap 28, and a groove is provided on the pressure block 44 to fit the outer wall of the welding wire 17.

[0049] By setting the torsion spring 40 and the side groove 45, the elastic rotation of the flap 28 is realized. When the flap 28 rotates, the torsion spring 40 is pressed. When the plug plate 29 is separated from the limiting side frame 24, the flap 28 automatically returns to its original position and rotates under the restoring elastic force of the torsion spring 40 to release the pressing on the welding line 17.

[0050] A baffle 41 is provided on the outer side of the rotating seat 27 to limit the rotation angle of the flap 28. The baffle 41 is arranged at an inclination. A slot 26 is provided between the lower end of the limiting side frame 24 and the upper end surface of the ceramic half column 15. The width of the insert plate 29 is greater than the width of the flap 28, and the insert plate 29 is inserted into the slot 26.

[0051] The insertion restriction of the plug plate 29 is realized by providing the slot 26 , and the baffle 41 is used to limit the angle of the flap 28 after it is reset.

[0052] Embodiment 3: On the basis of Embodiment 2, in order to further improve the automatic debonding of the welding wire 17, a plurality of groups of linearly distributed upper compression grooves 38 are arranged in the inner cavity of the guide inner groove 16, and an upper pressure rod 43 is slidably inserted in the upper compression groove 38, and the end of the upper pressure rod 43 is against the welding wire 17. A lower compression groove 47 is arranged at the front end of the ceramic half column 15, and a lower piston rod 39 is slidably installed in the lower compression groove 47. A second spring 46 pressed on the inner wall of the lower compression groove 47 is arranged at one end of the lower piston rod 39, and the other end of the lower piston rod 39 extends to the outer side of the front end of the ceramic half column 15, and the lower compression groove 47 is connected to the upper compression groove 38 through a connecting air pipe 42.

[0053] When the flap 28 is rotated and pressed together, the flap 28 is separated from the lower piston rod 39, so that the lower piston rod 39 pops outward under the action of the second spring 46. At this time, the upper pressure rod 43 formed in a U-shaped structure extends backward, which is convenient for the clamping and installation of the welding wire 17 in the guide inner groove 16. When the welding is completed, the flap 28 is reset due to the torsion spring 40, so that the flap 28 rotates outward. At this time, as the flap 28 rotates, the purpose of squeezing the lower piston rod 39 is achieved, so that the second spring 46 is compressed, and then the upper pressure rod 43 is driven to extend outward, and the welding wire 17 is pushed laterally out of the guide inner groove 16, which further improves the demolding stability and automation of the welding wire 17, thereby improving the welding accuracy and efficiency.

[0054] A welding method implemented according to a micro display screen wire bonding device, the welding method comprises the following steps:

[0055] Step 1: The display screen 12 and the circuit integrated board 14 are fixedly mounted on the material rack 11, and the distance between the display screen 12 and the circuit integrated board 14 is adjusted so that the distance is less than the length of the welding wire 17;

[0056] Step 2: Clamp the two ends of the welding wire 17 into the guide inner groove 16 on the ceramic half column 15, use the elastic rotation of the flap 28 to squeeze and fix the welding wire 17, use the driving member to adjust the lateral position of the ceramic half column 15, and then fix the flap 28 and fix the welding wire 17, and at the same time, the welding wire 17 accurately corresponds to the welding point;

[0057] Step 3: Use the height-adjustable support roller 18 to straighten the welding wire 17, melt the end of the welding wire 17 into a ball, and use the lifting column 3 to drive the lifting frame 6 to descend, so that the end ball of the welding wire 17 is pressed on the welding point to achieve the purpose of stable welding;

[0058] Step 4: After welding is completed, the support roller 18 is lowered to release the straight state of the welding line 17, and the ceramic half column 15 is reset to release the plug plate 29 from being fixed, so that the flap 28 automatically flips over to release the fixation of the welding line 17, thereby achieving automatic release.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro display screen wire bonding device, comprising a welding platform (1), a pair of material racks (11) being symmetrically arranged on both sides of the welding platform (1), and a display screen (12) and a circuit integrated board (14) being respectively mounted on the pair of material racks (11); Features: The upper end of the welding table (1) is provided with a plurality of lifting frames (6) that can be adjusted in vertical lifting; a support roller (18) that can be adjusted in height and supports the middle section of the welding wire (17) is provided in the middle of the lower end of the lifting frame (6); a pair of adjustment frames (9) are symmetrically provided at both ends of the lifting frame (6); a ceramic half-column (15) that is laterally driven by a driving member is installed on the adjustment frame (9); a guide inner groove (16) for clamping the welding wire (17) is provided on the front end surface of the ceramic half-column (15); the end of the guide inner groove (16) is directly facing the display screen (12) and the circuit A welding point on the integrated board (14), a heating plate (23) for heating and melting the end of the welding wire (17) is arranged at the end of the guiding inner groove (16), a flap (28) for elastic pressing is rotatably installed at the front end of the adjusting frame (9), the inner side of the flap (28) is pressed on the front end outer wall of the welding wire (17), the upper end of the flap (28) is provided with an insert plate (29) pressed on the upper end surface of the ceramic semi-column (15), and a limited side frame (24) is arranged at the rear side of the adjusting frame (9), and the insert plate (29) is plugged into the limited side frame (24) by a driving member in a sideways driving manner; The upper end of the welding table (1) is provided with a guide rail (2), and the lower end of the guide rail (2) is slidably mounted with a plurality of lifting columns (3), and the upper end of the lifting column (3) is provided with a top block (4) slidably plugged into the guide rail (2), and the top blocks (4) at the upper ends of adjacent lifting columns (3) are connected via a traction member (5), and the lower end of the lifting column (3) is connected to a lifting frame (6), and the lower end of the lifting frame (6) is provided with a cross beam (7), and an adjustment rod (8) is vertically arranged on the cross beam (7), and the support roller (18) is fixed to the upper end of the adjustment rod (8), and the adjustment rod (8) and the traction member (5) are both arranged as electric telescopic rods; a pair of adjustment frames (9) symmetrically distributed on the left and right are fixed on both sides of the cross beam (7). The adjusting frame (9) is provided with an adjusting groove (34) on one side of the upper end close to the supporting roller (18), and a limiting groove (37) extending downward is provided at the other end of the adjusting groove (34), and a sliding block (33) slidably inserted in the adjusting groove (34) is provided at the lower end of the ceramic semi-column (15), and a wing plate (35) inserted in the limiting groove (37) is provided at the lower end of the ceramic semi-column (15), and a guide column (25) slidably penetrating the side wall of the adjusting frame (9) is provided on the wing plate (35), and a first spring (36) is sleeved on the guide column (25), and one end of the first spring (36) abuts against the wing plate (35), and the other end of the first spring (36) abuts against the inner wall of the limiting groove (37).

2. A micro display screen wire bonding device according to claim 1, characterized in that: The driving member comprises a screw sleeve (30), a screw rod (31) and a motor (32); the screw sleeve (30) is fixed to a side of the ceramic half column (15) close to the lifting frame (6); a screw rod (31) is inserted through the adjusting frame (9); one end of the screw rod (31) is threadedly rotatably inserted into the screw sleeve (30), and the other end of the screw rod (31) is connected to the motor (32).

3. A micro display screen wire bonding device according to claim 2, characterized in that: The welding table (1) is symmetrically provided with lower grooves (10), the lower end of the material rack (11) is plugged into the lower grooves (10), the upper end of the material rack (11) is provided with a mounting groove (13), and the display screen (12) and the circuit integrated board (14) are fixed on the mounting groove (13).

4. A micro display screen wire bonding device according to claim 3, characterized in that: The ceramic semi-column (15) is provided with a heat-insulating layer (19) at the end facing the display screen (12) and the circuit integrated board (14); an arc groove (21) is provided at the lower end of the heat-insulating layer (19); a heat-insulating layer (20) is provided between the upper end of the heat-insulating layer (19) and the ceramic semi-column (15); symmetrically distributed telescopic clamping plates (22) are provided in the inner cavity of the heat-insulating layer (19); a heating plate (23) for bonding the welding wire (17) is provided on the telescopic clamping plates (22); and the inner diameter of the arc groove (21) is greater than the width of the guide inner groove (16).

5. A micro display screen wire bonding device according to claim 4, characterized in that: A rotating seat (27) is provided at the front end of the adjusting frame (9), the lower end of the flap (28) is rotatably sleeved on the rotating seat (27), side grooves (45) are provided on both sides of the flap (28), a torsion spring (40) is sleeved on the rotating seat (27), one end of the torsion spring (40) abuts against the inner wall of the side groove (45), and the other end of the torsion spring (40) abuts against the rotating seat (27), a pressing block (44) facing the guide inner groove (16) is provided on the inner wall of the flap (28), and a groove is provided on the pressing block (44) that fits the outer wall of the welding wire (17).

6. A micro display screen wire bonding device according to claim 5, characterized in that: A baffle (41) for limiting the rotation angle of the flap (28) is arranged on the outer side of the rotating seat (27); the baffle (41) is arranged in an inclined manner; a slot (26) is arranged between the lower end of the limiting side frame (24) and the upper end surface of the ceramic half column (15); the width of the inserting plate (29) is greater than the width of the flap (28); and the inserting plate (29) is inserted into the slot (26).

7. A micro display screen wire bonding device according to claim 6, characterized in that: A plurality of groups of linearly distributed upper compression grooves (38) are arranged in the inner cavity of the guide inner groove (16), an upper pressure rod (43) is slidably inserted in the upper compression groove (38), and the end of the upper pressure rod (43) is against the welding wire (17). A lower compression groove (47) is arranged at the front end of the ceramic semi-column (15), a lower piston rod (39) is slidably installed in the lower compression groove (47), one end of the lower piston rod (39) is provided with a second spring (46) pressed on the inner wall of the lower compression groove (47), and the other end of the lower piston rod (39) extends to the outer side of the front end of the ceramic semi-column (15), and the lower compression groove (47) is connected to the upper compression groove (38) through a connecting air pipe (42).

8. A welding method implemented by the micro display screen wire bonding device according to any one of claims 1 to 7, characterized in that: The welding method comprises the following steps: Step 1: The display screen (12) and the circuit integrated board (14) are fixedly mounted on the material rack (11), and the distance between the display screen (12) and the circuit integrated board (14) is adjusted so that the distance is smaller than the length of the welding wire (17); Step 2: clamping the two ends of the welding wire (17) in the guide inner groove (16) on the ceramic half column (15), using the elastic rotation of the flap (28) to achieve the purpose of squeezing and fixing the welding wire (17), and using the driving member to achieve the purpose of adjusting the lateral position of the ceramic half column (15), thereby achieving the purpose of fixing the flap (28) and fixing and clamping the welding wire (17), and at the same time the welding wire (17) accurately corresponds to the welding point; Step 3: Using a support roller (18) with adjustable height to straighten the welding wire (17), the end of the welding wire (17) is melted into a ball, and the lifting frame (6) is driven down by the lifting column (3), so that the end ball of the welding wire (17) is pressed on the welding point, thereby achieving the purpose of stable welding; Step 4: After the welding is completed, the support roller (18) is lowered to release the straightened state of the welding wire (17), and the ceramic half column (15) is reset, so that the plug plate (29) is released from the fixation, and the flap (28) is automatically turned over to release the fixation of the welding wire (17), thereby achieving automatic release.

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