Device for automatically maintaining poor welding points

Abstract

The utility model provides an automatic bad welding point maintenance device which comprises a maintenance assembly, and the maintenance assembly comprises a first linear module, two second linear modules, a mounting frame, two guide rails, a mounting plate, a supporting plate, a servo motor, a mounting base, a welding wire, a fixing frame, automatic temperature control soldering iron and a lead screw. The first linear module is installed on the rotors of the two second linear modules. The detection camera is used for identifying a reference point and a poor welding point of the PCB, under the cooperation of the first linear module and the second linear module, the automatic temperature control soldering iron moves to the position of the poor welding point, the servo motor drives the lead screw to rotate, the automatic temperature control soldering iron welds the poor welding point on the PCB, and after the welding is completed, the automatic temperature control soldering iron moves to the position of the poor welding point. The PCB is automatically maintained, so that the instability of personnel operation is avoided, the welding process is enabled to be within a controllable range, the labor cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a maintenance device, in particular to an automatic maintenance device for welding bad points, belonging to the technical field of welding. Background Art

[0002] Selective wave soldering, also known as selective soldering, is a very critical process in the production and assembly of the EMS industry. The quality of selective soldering directly affects the quality of the entire product. Therefore, the wave soldering process has always been one of the key processes that require key control in the production process.

[0003] Selective soldering is the main cause of PCB assembly defects, and it causes up to 50% of defects in the entire assembly process. When a PCB has thousands of solder joints, soldering must have a high success rate. The selective soldering process is basically carried out on the PCB, so the soldering defects on the PCB are mainly reflected in cold soldering, non-wetting, de-wetting, poor solder joint contour conformation, continuous soldering, pull tips, voids, pinholes, "shot" holes, disturbed solder joints or broken solder joints, dark solder joints or granular solder joints, etc.

[0004] At present, a detection device is placed behind the welding equipment to detect the welding points, that is, the bad welding points are detected at the maintenance station, and then manual repair is performed. After the repair, the product needs to be released after passing the AOI test. Generally, the bad products are collected and waited for manual repair by employees. During the maintenance process, due to manual maintenance operations, the maintenance process range is unstable, and the labor cost is increased, and the work efficiency is low. For this reason, an automatic repair device for bad welding points is proposed. Utility Model Content

[0005] In view of this, the utility model provides an automatic repair device for welding bad spots to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: an automatic butt welding bad point repair device includes a repair component, the repair component includes a first linear module, two second linear modules, a mounting frame, two guide rails, a mounting plate, a support plate, a servo motor, a mounting seat, a welding wire, a fixing frame, an automatic temperature control soldering iron and a lead screw;

[0007] The first linear module is installed on the movers of the two second linear modules, the mounting plate is fixedly connected to the mover of the first linear module, the mounting frame is slidably connected to the outer side walls of the two guide rails, the support plate is fixedly connected to the front surface of the mounting plate, the top end of the screw rod is fixedly connected to the output shaft of the servo motor, the automatic temperature control soldering iron is fixedly connected to the fixing frame, the fixing frame is fixedly connected to the mounting frame, the welding wire is installed inside the mounting seat, and the mounting seat is fixedly connected to the upper surface of the mounting frame.

[0008] Further preferably, the servo motor is mounted on the upper surface of the support plate, and the mounting bracket is threadedly connected to the outer side wall of the screw rod.

[0009] Further preferably, the two guide rails are symmetrically fixedly connected to both sides of the front surface of the mounting plate, and the rear surface of the mounting plate is slidably connected to the front surface of the first linear module.

[0010] Further preferably, the automatic temperature control soldering iron is located below the mounting frame.

[0011] Further preferably, a main body component is installed on the lower surface of the second linear module, and the main body component includes a base, a frame and a workbench;

[0012] The two second linear modules are symmetrically installed inside the two frames, the two frames are symmetrically fixedly connected to the upper surface of the base, and the workbench is installed on the upper surface of the base.

[0013] Further preferably, the main assembly further includes a moving module and a detection camera;

[0014] The moving module is installed on the upper surfaces of the two frames, and the detection camera is installed on the mover of the moving module.

[0015] Further preferably, a PCB board is installed on the upper surface of the workbench, and the position of the automatic temperature control soldering iron corresponds to the position of the PCB board.

[0016] Further preferably, the position of the automatic temperature control soldering iron corresponds to the position of the detection camera, and the first linear module is located below the moving module.

[0017] Since the embodiment of the utility model adopts the above technical scheme, it has the following advantages: the utility model identifies the reference points and the bad welding points of the PCB board through the detection camera, and with the cooperation of the first linear module and the second linear module, the automatic temperature control soldering iron moves to the position of the bad welding point, and the lead screw is driven to rotate by the servo motor, and the mounting frame slides downward along the two guide rails. The mounting frame drives the automatic temperature control soldering iron to move downward through the fixed frame, and the automatic temperature control soldering iron welds the bad points on the PCB board. After the welding is completed, the detection camera takes pictures again for detection. By automatically repairing the PCB board, the instability of human operation is avoided, the welding process is within a controllable range, and the labor cost is reduced, thereby improving production efficiency.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the main components of the utility model;

[0022] Figure 3 This is a structural diagram of the maintenance component of the utility model;

[0023] Figure 4 This is a structural diagram of the mounting frame of the utility model.

[0024] : 101, maintenance component; 11, first linear module; 12, second linear module; 13, mounting frame; 14, guide rail; 15, mounting plate; 16, support plate; 17, servo motor; 18, mounting seat; 19, welding wire; 20, fixing frame; 21, automatic temperature control soldering iron; 22, screw rod; 301, main body component; 31, base; 32, frame; 33, workbench; 34, PCB board; 35, mobile module; 36, detection camera. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, the embodiment of the utility model provides an automatic repair device for welding bad points, including a repair component 101, the repair component 101 includes a first linear module 11, two second linear modules 12, a mounting frame 13, two guide rails 14, a mounting plate 15, a support plate 16, a servo motor 17, a mounting seat 18, a welding wire 19, a fixing frame 20, an automatic temperature control soldering iron 21 and a screw rod 22;

[0028] The first linear module 11 is installed on the movers of the two second linear modules 12, the mounting plate 15 is fixedly connected to the mover of the first linear module 11, the mounting frame 13 is slidably connected to the outer side walls of the two guide rails 14, the support plate 16 is fixedly connected to the front surface of the mounting plate 15, the top end of the screw rod 22 is fixedly connected to the output shaft of the servo motor 17, the automatic temperature control soldering iron 21 is fixedly connected to the fixing frame 20, the fixing frame 20 is fixedly connected to the mounting frame 13, the welding wire 19 is installed inside the mounting seat 18, and the mounting seat 18 is fixedly connected to the upper surface of the mounting frame 13.

[0029] In one embodiment, the servo motor 17 is installed on the upper surface of the support plate 16, the mounting frame 13 is threadedly connected to the outer wall of the screw rod 22, and the two guide rails 14 are symmetrically fixedly connected to the two sides of the front surface of the mounting plate 15. The rear surface of the mounting plate 15 is slidably connected to the front surface of the first linear module 11. The screw rod 22 is driven by the servo motor 17, and the screw rod 22 drives the mounting frame 13 through the thread. The position of the automatic temperature control soldering iron 21 can be adjusted to realize the welding action, and the guide rail 14 can guide the mounting frame 13.

[0030] In one embodiment, the automatic temperature control soldering iron 21 is located below the mounting bracket 13, the welding wire 19 is connected to the automatic temperature control soldering iron 21, and the automatic temperature control soldering iron 21 has an automatic welding wire feeding function. During the welding process, the automatic temperature control soldering iron 21 can realize automatic welding wire feeding 19.

[0031] In one embodiment, a main body component 301 is installed on the lower surface of the second linear module 12, and the main body component 301 includes a base 31, a frame 32 and a workbench 33;

[0032] The two second linear modules 12 are symmetrically installed inside the two frames 32 , the two frames 32 are symmetrically fixedly connected to the upper surface of the base 31 , and the workbench 33 is installed on the upper surface of the base 31 ;

[0033] The main assembly 301 also includes a moving module 35 and a detection camera 36;

[0034] The moving module 35 is installed on the upper surfaces of the two frames 32, and the detection camera 36 is installed on the mover of the moving module 35. The moving module 35 is composed of a linear module, which can drive the detection camera 36 to move along the X and Y axis directions.

[0035] In one embodiment, a PCB board 34 is installed on the upper surface of the workbench 33, the position of the automatic temperature control soldering iron 21 corresponds to the position of the PCB board 34, the position of the automatic temperature control soldering iron 21 corresponds to the position of the detection camera 36, ​​and the first linear module 11 is located below the moving module 35. Through the cooperation of the first linear module 11 and the second linear module 12, the automatic temperature control soldering iron 21 can be driven to move along the X and Y axis directions, and the servo motor 17 drives the screw rod 22, so that the automatic temperature control soldering iron 21 can move upward or downward along the Z axis.

[0036] When the utility model is working: the PCB board 34 is inspected by the detection camera 36, ​​and the reference point and the poor welding point of the PCB board 34 are identified. After the position is determined, with the cooperation of the first linear module 11 and the second linear module 12, the automatic temperature control soldering iron 21 can be moved to the position of the poor welding point of the PCB board 34, and the lead screw 22 is driven to rotate by the servo motor 17. The lead screw 22 drives the mounting frame 13 to move downward through the thread, and the mounting frame 13 slides downward along the two guide rails 14. The mounting frame 13 drives the automatic temperature control soldering iron 21 to move downward through the fixing frame 20. At this time, the automatic temperature control soldering iron 21 can weld the poor points on the PCB board 34. After the welding is completed, the detection camera 36 takes pictures again for detection, and automatically releases the product when it is qualified.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automatic butt welding defect repair device, comprising a repair component (101), characterized in that: The maintenance assembly (101) comprises a first linear module (11), two second linear modules (12), a mounting frame (13), two guide rails (14), a mounting plate (15), a support plate (16), a servo motor (17), a mounting seat (18), a welding wire (19), a fixing frame (20), an automatic temperature control soldering iron (21) and a screw rod (22); The first linear module (11) is mounted on the movers of the two second linear modules (12); the mounting plate (15) is fixedly connected to the mover of the first linear module (11); the mounting frame (13) is slidably connected to the outer side walls of the two guide rails (14); the support plate (16) is fixedly connected to the front surface of the mounting plate (15); the top end of the screw rod (22) is fixedly connected to the output shaft of the servo motor (17); the automatic temperature control soldering iron (21) is fixedly connected to the fixing frame (20); the fixing frame (20) is fixedly connected to the mounting frame (13); the welding wire (19) is mounted inside the mounting seat (18); and the mounting seat (18) is fixedly connected to the upper surface of the mounting frame (13).

2. The automatic butt welding defect repair device according to claim 1 is characterized in that: The servo motor (17) is mounted on the upper surface of the support plate (16), and the mounting frame (13) is threadedly connected to the outer side wall of the screw rod (22).

3. The automatic butt welding defect repair device according to claim 1 is characterized in that: The two guide rails (14) are symmetrically fixedly connected to the two sides of the front surface of the mounting plate (15), and the rear surface of the mounting plate (15) is slidably connected to the front surface of the first linear module (11).

4. The automatic butt welding defect repair device according to claim 2 is characterized in that: The automatic temperature-control soldering iron (21) is located below the mounting frame (13).

5. The automatic butt welding defect repair device according to claim 1 is characterized in that: A main body component (301) is installed on the lower surface of the second linear module (12), and the main body component (301) includes a base (31), a frame (32) and a workbench (33); The two second linear modules (12) are symmetrically installed inside the two frames (32), the two frames (32) are symmetrically fixedly connected to the upper surface of the base (31), and the workbench (33) is installed on the upper surface of the base (31).

6. The automatic butt welding defect repair device according to claim 5, characterized in that: The main body component (301) also includes a moving module (35) and a detection camera (36); The movable module (35) is mounted on the upper surfaces of the two frames (32), and the detection camera (36) is mounted on the mover of the movable module (35).

7. The automatic butt welding defect repair device according to claim 5 is characterized in that: A PCB board (34) is installed on the upper surface of the workbench (33), and the position of the automatic temperature control soldering iron (21) corresponds to the position of the PCB board (34).

8. The automatic butt welding defect repair device according to claim 7 is characterized in that: The position of the automatic temperature-controlled soldering iron (21) corresponds to the position of the detection camera (36), and the first linear module (11) is located below the moving module (35).

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