Circuit board wire automatic repairing machine

Abstract

The utility model discloses a circuit board wire automatic repairing machine in the technical field of circuit board repairing, which comprises a rack, a working platform is arranged on the rack, a three-axis moving frame is arranged on the working platform, a wire repairing power supply case, a control host and an image processing host are arranged in the rack, the wire repairing power supply case is arranged on one side of the control host in the rack, and the image processing host is arranged on the control host. The image processing host is arranged on the other side of the control host, a welding assembly is arranged on the three-axis moving frame, an image scanning assembly is arranged above the working table, and a positioning assembly is arranged on the working table, so that manual use is effectively reduced, meanwhile, manual damage is avoided, materials are more convenient to repair, and the working efficiency is improved. And due to integrated repairing, the use efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board repair, in particular to an automatic circuit board wire repair machine. Background Technique

[0002] PCB, also known as printed circuit board, refers to a printed board that forms inter-point connections and printed components on a general substrate according to a predetermined design. It is a support for electronic components and a carrier for electrical connections, mainly appearing in various electronic devices.

[0003] The general process of manufacturing a PCB is as follows: blanking - inner layer pattern transfer - inner layer etching - inner layer AOI - lamination - drilling - electroless copper plating - full board electroplating - outer layer pattern transfer - pattern electroplating - outer layer etching - tin stripping - making solder mask - surface treatment - shaping. The inner layer circuit and the outer layer circuit are respectively formed by inner layer etching and outer layer etching. Inevitably, some circuits of some circuit boards will be over-etched during etching, resulting in open circuits.

[0004] In order to salvage this part of the circuit board, reduce production costs and avoid waste, it is necessary to repair the open circuit of this part of the circuit board. For such defects, a wire repair machine needs to be used to weld and repair the wires. The repaired circuit board also needs to be subjected to hot oil washing, strong vibration and electrical performance load work tests to ensure that it meets the requirements of the original designed circuit board. The voltage output control of the wire repair machine is inaccurate, resulting in unreliable welding and damage to the circuit board during the wire repair process. In addition, the traditional wire repair machine is operated by employees with rich wire repair experience, and the position of the welding head is manually adjusted for welding and wire repair. The manual adjustment cannot accurately adjust the position of the welding head, resulting in poor welding accuracy.

[0005] Based on this, the utility model designs an automatic circuit board wire repair machine to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide an automatic circuit board wire repair machine to solve the problems of low repair efficiency and poor accuracy caused by manual repair in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] The automatic circuit board wire repair machine includes a frame. An operation table is provided on the frame. A three-axis moving frame is installed on the operation table. A wire repair power supply chassis, a control host and an image processing host are installed in the frame. The wire repair power supply chassis is arranged on one side of the control host in the frame, and the image processing host is arranged on the other side of the control host. A welding component is arranged on the three-axis moving frame. An image scanning component is arranged above the operation table. A positioning component is provided on the operation table.

[0009] Preferably, the three-axis moving frame includes a longitudinal-axis moving frame group, a transverse-axis moving frame, and a vertical-axis lifting frame. The longitudinal-axis moving frame group, the transverse-axis moving frame, and the vertical-axis lifting frame are all installed on the workbench. The transverse-axis moving frame is installed on the longitudinal-axis moving frame group. The longitudinal-axis moving frame group is fixedly installed on both sides of the workbench. The welding assembly is located on the vertical-axis lifting frame.

[0010] Preferably, the longitudinal-axis moving frame group includes a linear module and a slide-rail moving frame. The linear module includes a first linear chute, a first ball screw, a first slide table, a first coupling, and a first servo motor. The linear module is installed on one side of the workbench. The first linear chute is opened on the workbench. The first ball screw is arranged inside the first linear chute. The first slide table is installed on the first ball screw. One end of the first ball screw is connected to the first coupling. The first coupling is connected to the output shaft of the first servo motor. The slide-rail moving frame is installed on the other side of the workbench. The slide-rail moving frame includes a linear guide rail, a second slide table, and a stopper. The second slide table is arranged on the linear guide rail. Stoppers for restricting the second slide table are arranged at both ends of the linear guide rail. The transverse-axis moving frame includes a second linear chute, a mounting plate, a second ball screw, a T-shaped slide table, a second coupling, and a second servo motor. The mounting plate is arranged at the bottom of the second linear chute. The second linear chute is installed on the first slide table of the longitudinal-axis moving frame group through the mounting plate. The second ball screw is arranged inside the second linear chute. The T-shaped slide table is installed on the second ball screw. One end of the second ball screw is connected to the second coupling. The second coupling is connected to the output shaft of the second servo motor. The vertical-axis lifting frame is installed on the T-shaped slide table of the transverse-axis moving frame.

[0011] Preferably, the vertical-axis lifting frame includes a third linear chute, a third ball screw, a third slide table, a third coupling, a third servo motor, and a connecting frame. The third linear chute is installed on the T-shaped slide table of the transverse-axis moving frame. The third ball screw is arranged inside the third linear chute. The third slide table is installed on the third ball screw. One end of the third ball screw is connected to the third coupling. The third coupling is connected to the output shaft of the third servo motor. The connecting frame is fixedly installed on the third slide table.

[0012] Preferably, the welding assembly includes a mounting frame, a controller, an electrode head, an automatic steering device, a wire feeder, an adjusting frame, and a welding auxiliary lens. The automatic steering device is arranged on the mounting frame. The automatic steering device is arranged below the controller. The electrode head is arranged below the automatic steering device. The electrode head is connected to the supplementary wire power supply chassis through a power output connector. The wire feeder is installed on one side of the controller. The welding auxiliary lens is installed in front of the electrode head below the controller through the adjusting frame.

[0013] Preferably, the image scanning assembly includes a fixing frame and a CCD camera. The fixing frame is arranged on the workbench, the CCD camera is installed on the fixing frame, and the CCD camera is electrically connected to the image processing host.

[0014] Preferably, the positioning assembly includes a guiding groove, a toothed ring, a track groove, a moving rod, a positioning plate, an adjusting rod, a driving source and a gear. A plurality of guiding grooves are formed in the workbench, a toothed ring is rotatably connected to the lower side of the workbench, and a plurality of track grooves are formed in the toothed ring. A moving rod is slidably connected between each guiding groove and a track groove. A positioning plate is slidably arranged on the moving rod. A flexible rubber layer is arranged on the surface of the positioning plate. An adjusting rod is arranged between the positioning plate and the moving rod. A driving source is installed on the workbench, a gear is installed at the output end of the driving source, and the gear is meshed with the toothed ring.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, the material to be repaired and welded is placed on the workbench. Meanwhile, the CCD camera collects the image of the circuit board on the workbench and transmits it to the image processing host for processing to generate a first coordinate system, and the image of the notch at the open circuit generates a second coordinate system. The image processing host transmits the generated first and second coordinate systems to the control host, and the control host controls the three-axis moving frame to work. When the three-axis moving frame works, the first servo motor, the second servo motor and the third servo motor in the three-axis moving frame start to work. At this time, the first ball screw, the second ball screw and the third ball screw rotate within the corresponding positions, so as to adjust the position of the welding assembly. When the welding position is adjusted to a suitable position, the welding auxiliary lens of the welding assembly and the welding position automatically adjust the welding angle of the electrode head through an automatic steering device. Meanwhile, the driving source controls the gear to rotate. At this time, the gear controls the toothed ring to rotate. When the toothed ring rotates, the moving rod moves under the drive of the guiding groove and the track groove, so that a plurality of positioning plates approach each other. At this time, a plurality of positioning rods fix the material to be repaired. Subsequently, the electrode head in the welding assembly welds the material, which can effectively ensure the welding efficiency of the material, ensure the accuracy of the welding, prevent artificial damage during the welding process of the equipment, ensure the stability during welding, effectively position the welded material, avoid deviation during the welding process, and further improve the welding efficiency of the equipment. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 Schematic diagram of the structure of the lower side view of the present utility model;

[0020] Figure 3 Schematic diagram of the three-axis moving frame structure of the present utility model;

[0021] Figure 4 Schematic diagram of the longitudinal axis moving frame group of the three-axis moving frame of the present utility model;

[0022] Figure 5 Schematic diagram of the transverse axis moving frame group of the three-axis moving frame of the present utility model;

[0023] Figure 6 Schematic diagram of the vertical axis moving frame group of the three-axis moving frame of the present utility model;

[0024] Figure 7 Schematic diagram of the welding component structure of the present utility model;

[0025] Figure 8 Schematic diagram of the image scanning component structure of the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Frame; 2. Workbench; 3. Three-axis moving frame; 31. Longitudinal axis moving frame group; 311. Linear module; 3111. First linear chute; 3112. First ball screw; 3113. First slide table; 3114. First coupling; 3115. No. 1 servo motor; 312. Slide rail moving frame; 3121. Linear guide rail; 3122. Second slide table; 3123. Limiter; 32. Transverse axis moving frame; 321. Second linear chute; 322. Mounting plate; 323. Second ball screw; 3234. T-shaped slide table; 325. Second coupling; 326. No. 2 servo motor; 33. Vertical axis lifting frame; 331. Third linear chute; 332. Third ball screw; 333. Third slide table; 334. Third coupling; 335. No. 3 servo motor; 336. Connecting frame; 4. Wire repair power supply chassis; 5. Control host; 6. Image processing host; 7. Welding assembly; 71. Mounting frame; 72. Controller; 73. Electrode head; 74. Automatic steering device; 75. Wire feeder; 76. Adjusting frame; 77. Welding auxiliary lens; 8. Image scanning assembly; 81. Fixed frame; 82. CCD camera; 9. Positioning assembly; 91. Guide groove; 92. Tooth ring; 93. Track groove; 94. Moving rod; 95. Positioning plate; 96. Adjusting rod; 97. Driving source; 98. Gear. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 - 8 , the present invention provides a technical solution:

[0030] An automatic circuit board wire repair machine includes a frame 1, a workbench 2 is provided on the frame 1, a three-axis moving frame 3 is installed on the workbench 2, a wire repair power supply chassis 4, a control host 5 and an image processing host 6 are installed in the frame 1, the wire repair power supply chassis 4 is arranged on one side of the control host 5 in the frame 1, the image processing host 6 is arranged on the other side of the control host 5, a welding assembly 7 is arranged on the three-axis moving frame 3, an image scanning assembly 8 is arranged above the workbench 2, and a positioning assembly 9 is provided on the workbench 2.

[0031] Among them, the three-axis moving frame 3 includes a longitudinal-axis moving frame group 31, a transverse-axis moving frame 32, and a vertical-axis lifting frame 33. The longitudinal-axis moving frame group 31, the transverse-axis moving frame 32, and the vertical-axis lifting frame 33 are all installed on the operating table 2. The transverse-axis moving frame 32 is installed on the longitudinal-axis moving frame group 31. The longitudinal-axis moving frame group 31 is fixedly installed on both sides of the operating table 2. The welding assembly 7 is located on the vertical-axis lifting frame 33; it is convenient to control the movement of the welding assembly 7 to make it adapt to material repair at different positions.

[0032] Among them, the longitudinal-axis moving frame group 31 includes a linear module 311 and a slide rail moving frame 312. The linear module 311 includes a first linear chute 3111, a first ball screw 3112, a first slide 3113, a first coupling 3114, and a first servo motor 3115. The linear module 311 is installed on one side of the operating table 2. The first linear chute 3111 is opened on the operating table 2. The first ball screw 3112 is arranged inside the first linear chute 3111. The first ball screw 3112 is installed with a first slide 3113. One end of the first ball screw 3112 is connected to the first coupling 3114, and the first coupling 3114 is connected to the output shaft of the first servo motor 3115. The slide rail moving frame 312 is installed on the other side of the operating table 2. The slide rail moving frame 312 includes a linear guide rail 3121, a second slide 3122, and a stopper 3123. The second slide 3122 is arranged on the linear guide rail 3121. Limiters 3123 for restricting the second slide 3122 are arranged at both ends of the linear guide rail 3121. The transverse-axis moving frame 32 includes a second linear chute 321, a mounting plate 322, a second ball screw 323, a T-shaped slide 3234, a second coupling 325, and a second servo motor 326. The mounting plate 322 is arranged at the bottom of the second linear chute 321. The second linear chute 321 is installed on the first slide 3113 of the longitudinal-axis moving frame group 31 through the mounting plate 322. The second ball screw 323 is arranged inside the second linear chute 321. The second ball screw 323 is installed with a T-shaped slide 3234. One end of the second ball screw 323 is connected to the second coupling 325, and the second coupling 325 is connected to the output shaft of the second servo motor 326. The vertical-axis lifting frame 33 is installed on the T-shaped slide 3234 of the transverse-axis moving frame 32; it enables the equipment to move during use, further improving the efficiency of the equipment during repair.

[0033] Among them, the vertical shaft lifting frame 33 includes a third linear chute 331, a third ball screw 332, a third slide 333, a third coupling 334, a No. 3 servo motor 335, and a connecting frame 336. The third linear chute 331 is installed on the T-shaped slide 3234 of the horizontal shaft moving frame 32. The third ball screw 332 is arranged inside the third linear chute 331. A third slide 333 is installed on the third ball screw 332. One end of the third ball screw 332 is connected to the third coupling 334, and the third coupling 334 is connected to the output shaft of the No. 3 servo motor 335. The connecting frame 336 is fixedly installed on the third slide 333; it is convenient to control the descent of the welding assembly 7, making it more automated during welding.

[0034] Among them, the welding assembly 7 includes a mounting frame 71, a controller 72, an electrode head 73, an automatic steering device 74, a wire feeder 75, an adjusting frame 76, and a welding auxiliary lens 77. An automatic steering device 74 is arranged on the mounting frame 71. The automatic steering device 74 is arranged below the controller 72. The electrode head 73 is arranged below the automatic steering device 74. The electrode head 73 is connected to the repair wire power supply chassis 4 through a power output connector. The wire feeder 75 is installed on one side of the controller 72. The welding auxiliary lens 77 is installed in front of the electrode head 73 below the controller 72 through the adjusting frame 76; it is convenient to further improve the welding accuracy of the equipment.

[0035] Among them, the image scanning assembly 8 includes a fixing frame 81 and a CCD camera 82. The fixing frame 81 is arranged on the workbench 2, and the CCD camera 82 is installed on the fixing frame 81. The CCD camera 82 is electrically connected to the image processing host 6; it makes the equipment more convenient during repair.

[0036] Among them, the positioning assembly 9 includes a guiding groove 91, a toothed ring 92, a track groove 93, a moving rod 94, a positioning plate 95, an adjusting rod 96, a driving source 97, and a gear 98. A plurality of guiding grooves 91 are formed on the workbench 2. The toothed ring 92 is rotatably connected to the lower side of the workbench 2. The toothed ring 92 is provided with a plurality of track grooves 93. A moving rod 94 is slidably connected between each guiding groove 91 and a track groove 93. A positioning plate 95 slides on the moving rod 94. A flexible rubber layer is provided on the surface of the positioning plate 95. An adjusting rod 96 is arranged between the positioning plate 95 and the moving rod 94. The driving source 97 is installed on the workbench 2, and a gear 98 is installed at the output end of the driving source 97. The gear 98 is meshed with the toothed ring 92; it makes the equipment more stable during repair welding and prevents deviation during the welding process.

[0037] Working principle:

[0038] During operation, the material to be repaired and welded is placed on the workbench 2. Meanwhile, the CCD camera 82 captures the image of the circuit board on the workbench 2 and transmits it to the image processing host 6 for processing to generate a first coordinate system, and the image of the notch at the open circuit generates a second coordinate system. The image processing host 6 transmits the generated first and second coordinate systems to the control host 5, and the control host 5 controls the three-axis moving frame 3 to work. When the three-axis moving frame 3 is working, the first servo motor 3115, the second servo motor 326, and the third servo motor in the three-axis moving frame 3 start to work. At this time, the first ball screw 3112, the second ball screw 323, and the third ball screw 332 rotate within their respective positions, thereby adjusting the position of the welding assembly 7. When the welding position is adjusted to the appropriate position, the welding auxiliary lens 77 of the welding assembly 7 and the welding position automatically adjust the welding angle of the electrode head 73 through the automatic steering device 74. Meanwhile, the drive source 97 controls the rotation of the gear 98. At this time, the gear 98 controls the rotation of the gear ring 92. When the gear ring 92 rotates, the moving rod 94 moves under the drive of the guide groove 91 and the track groove 93, causing the plurality of positioning plates 95 to approach each other. At this time, the plurality of positioning rods fix the material to be repaired. Subsequently, the electrode head 73 in the welding assembly 7 welds the material, thereby effectively ensuring the welding efficiency of the material, while ensuring the accuracy of the welding, preventing manual damage during the welding process of the equipment, and ensuring the stability during welding. It can effectively position the welded material and avoid deviation during the welding process, further improving the welding efficiency of the equipment.

Claims

1. A circuit board conductor automatic repair machine, comprising a frame (1), characterized in that: The frame (1) is provided with a workbench (2), a three-axis movable frame (3) is installed on the workbench (2), a line-replenishing power supply chassis (4), a control host (5) and an image processing host (6) are installed in the frame (1), the line-replenishing power supply chassis (4) is arranged on one side of the control host (5) in the frame (1), and the image processing host (6) is arranged on the other side of the control host (5), a welding component (7) is arranged on the three-axis movable frame (3), an image scanning component (8) is arranged above the workbench (2), and a positioning component (9) is arranged on the workbench (2).

2. The circuit board conductor automatic repair machine according to claim 1, characterized in that: The three-axis movable frame (3) comprises a longitudinal movable frame group (31), a transverse movable frame (32) and a vertical lifting frame (33); the longitudinal movable frame group (31), the transverse movable frame (32) and the vertical lifting frame (33) are all installed on a workbench (2); the transverse movable frame (32) is installed on the longitudinal movable frame group (31); the longitudinal movable frame group (31) is fixedly installed on both sides of the workbench (2); and the welding assembly (7) is located on the vertical lifting frame (33).

3. The circuit board conductor automatic repair machine according to claim 2, characterized in that: The longitudinal axis moving frame group (31) comprises a linear module (311) and a slide rail moving frame (312); the linear module (311) comprises a first linear slide groove (3111), a first ball screw (3112), a first slide table (3113), a first coupling (3114) and a first servo motor (3115); the linear module (311) is installed on one side of the workbench (2); the first linear slide groove (3111) is opened on the workbench (2); the first ball screw (3112) is arranged in the first linear slide groove (3111), and the first ball screw (3112) is arranged in the first linear slide groove (3111). 111), a first slide (3113) is installed on the first ball screw (3112), one end of the first ball screw (3112) is connected to a first coupling (3114), the first coupling (3114) is connected to an output shaft of a servo motor (3115), the slide rail moving frame (312) is installed on the other side of the workbench (2), the slide rail moving frame (312) includes a linear guide rail (3121), a second slide rail (3122) and a stopper (3123), the linear guide rail (3121) A second slide (3122) is arranged on the top, and stoppers (3123) for limiting the second slide (3122) are arranged at both ends of the linear guide rail (3121), the transverse axis moving frame (32) comprises a second linear slide groove (321), a mounting plate (322), a second ball screw (323), a T-type slide (3234), a second coupling (325) and a second servo motor (326), the bottom of the second linear slide groove (321) is provided with a mounting plate (322), and the second linear slide groove (321) is connected to the second linear slide groove (321) by the mounting plate (3 22) is installed on the first slide (3113) of the longitudinal axis moving frame group (31), the second ball screw (323) is arranged inside the second linear slide groove (321), a T-shaped slide (3234) is installed on the second ball screw (323), one end of the second ball screw (323) is connected to the second coupling (325), the second coupling (325) is connected to the output shaft of the second servo motor (326), and the vertical axis lifting frame (33) is installed on the T-shaped slide (3234) of the transverse axis moving frame (32).

4. The circuit board conductor automatic repair machine according to claim 2, characterized in that: The vertical axis lifting frame (33) comprises a linear third linear slide (331), a third ball screw (332), a third slide (333), a third coupling (334), a third servo motor (335), and a connecting frame (336). The third linear slide (331) is installed on the T-shaped slide (3234) of the horizontal axis moving frame (32). The third ball screw (332) is arranged inside the third linear slide (331). The third slide (333) is installed on the third ball screw (332). One end of the third ball screw (332) is connected to the third coupling (334). The third coupling (334) is connected to the output shaft of the third servo motor (335). The connecting frame (336) is fixedly installed on the third slide (333).

5. The circuit board conductor automatic repair machine according to claim 1, characterized in that: The welding assembly (7) comprises a mounting frame (71), a controller (72), an electrode head (73), an automatic steering gear (74), a wire feeder (75), (76) an adjusting frame and (77) a welding auxiliary lens. The mounting frame (71) is provided with an automatic steering gear (74), the automatic steering gear (74) is arranged below the controller (72), the electrode head (73) is arranged below the automatic steering gear (74), the electrode head (73) is connected to a line supplement power supply chassis (4) through an electric power output connector, the wire feeder (75) is installed on one side of the controller (72), and the welding auxiliary lens (77) is installed in front of the electrode head (73) below the controller (72) through the adjusting frame (76).

6. The circuit board conductor automatic repair machine according to claim 1, characterized in that: The image scanning component (8) comprises a fixing frame (81) and a CCD camera (82); the fixing frame (81) is arranged on a workbench (2); the CCD camera (82) is mounted on the fixing frame (81); and the CCD camera (82) is electrically connected to an image processing host (6).

7. The circuit board conductor automatic repair machine according to claim 1, characterized in that: The positioning assembly (9) comprises a guide groove (91), a gear ring (92), a track groove (93), a moving rod (94), a positioning plate (95), an adjustment rod (96), a driving source (97) and a gear (98). The workbench (2) is provided with a plurality of guide grooves (91). The lower side of the workbench (2) is rotatably connected with a gear ring (92). The gear ring (92) has a plurality of track grooves (93). A moving rod (94) is slidably connected between each of the guide grooves (91) and a track groove (93). A positioning plate (95) is slidably provided on the moving rod (94). A flexible rubber layer is provided on the surface of the positioning plate (95). An adjustment rod (96) is provided between the positioning plate (95) and the moving rod (94). A driving source (97) is installed on the workbench (2). A gear (98) is installed at the output end of the driving source (97). The gear (98) is meshedly connected with the gear ring (92).

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