PCB (printed circuit board) repair device

Abstract

The utility model discloses a PCB (Printed Circuit Board) repairing device, which comprises a machine table, a maintenance tool and a driving assembly, and a workbench is arranged at the top of the machine table and is used for placing a PCB. The maintenance tool comprises a connecting sliding block, and the connecting sliding block is arranged on the side, in the second direction, of the maintenance tool. The driving assembly comprises a fixing plate, a first guide assembly and a second guide assembly, the fixing plate extends in the first direction, and a first guide rail is arranged at the top and used for being in sliding fit with the connecting sliding block. The first guide assembly comprises a first drag chain, and the first drag chain is arranged on the side, in the second direction, of the workbench, connected with the connecting sliding block and used for driving the maintenance tool to move relative to the first guide rail in the first direction. The second guide assembly comprises a second drag chain, and the second drag chain is arranged on one side, in the first direction, of the workbench and used for driving the fixing plate to move in the second direction relative to the first drag chain, so that the maintenance tool corresponds to the PCB, dependence on skills of operators is reduced, and the possibility of manual operation errors is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a PCB board repair device. Background Art

[0002] PCB, or printed circuit board, is one of the important components of the electronics industry. Almost every electronic device, from small electronic watches and calculators to large computers, communication electronic equipment, and military weapon systems, as long as it has electronic components such as integrated circuits, must use printed circuit boards to make electrical interconnections between various components. With the development of electronic products, the types of components used in PCBs are increasing. During the welding process of PCBs, it is easy to have problems with unqualified welding, or PCB boards that have been shipped from the factory may be damaged during later use. Therefore, the problematic circuit boards need to be repaired.

[0003] In the existing technology, desoldering operations are mostly done manually by personnel using simple tools such as hollow needles, solder suckers, tweezers, solder sucking ropes, and solder sucking irons. Not only is it difficult to ensure accuracy, but the uniformity is poor during repeated operations, the error rate is high, and the speed is not ideal. Utility Model Content

[0004] In order to overcome the above shortcomings, the purpose of the present invention is to provide a PCB board repair device to solve the problems raised in the above background technology.

[0005] In order to achieve the above objectives, the technical solution adopted by the present invention is a PCB board repair device, comprising:

[0006] The machine platform extends along a first direction and has a workbench on the top for placing a PCB board.

[0007] The maintenance tool comprises a connecting slider, which is arranged on one side of the maintenance tool along the second direction.

[0008] The driving assembly includes a fixed plate, a first guide assembly and a second guide assembly. The fixed plate extends along the first direction and is provided with a first guide rail on the top for slidingly cooperating with the connecting slider.

[0009] The first guide assembly includes a first drag chain, which is arranged on one side of the workbench along the second direction and connected to the connecting slider, and is used to drive the maintenance tool to move along the first direction relative to the first guide rail.

[0010] The second guide assembly includes a second drag chain, which is arranged on one side of the workbench along the first direction and connected to the bottom of the fixed plate, and is used to drive the fixed plate to move along the second direction relative to the first drag chain so that the maintenance tool corresponds to the PCB board, and the first direction is perpendicular to the second direction.

[0011] The PCB rework device provided by the utility model enables the repair tool to move in two directions through the design of the first guide component and the second guide component, thereby reducing the time required for rework and improving work efficiency. It achieves precise positioning of the repair tool relative to the PCB board, improves the accuracy and efficiency of repair, and can reduce the dependence on operator skills and reduce the possibility of human operational errors.

[0012] In some embodiments, the first guide assembly further includes a connecting rod and a first motor, wherein the connecting rod extends along the second direction and passes through the first drag chain, and one end of the connecting rod along the second direction is connected to the connecting slider, so as to enable the maintenance tool to maintain connection with the second guide assembly when moving along the first direction.

[0013] By adopting the above technical solution, the movement of the maintenance tool along the first direction can be accurately controlled through the design of the connecting rod and the first motor in the first guide assembly, which helps to improve the accuracy and efficiency of the maintenance operation.

[0014] In some embodiments, a fixing block is provided at the other end of the connecting rod along the second direction, for abutting and limiting the position of the first drag chain when the connecting rod moves along the second direction with the maintenance tool.

[0015] By adopting the above technical solution, the design of the connecting rod enables the maintenance tool to maintain a stable connection with the second guide assembly when moving along the first direction, thereby enhancing the stability and reliability of the entire device.

[0016] In some embodiments, the second guide assembly further includes a linear guide rail and a second motor, wherein the linear guide rail is provided on the other side of the workbench along the first direction and connected to the bottom of the fixed plate. The second motor is used to drive the second drag chain to move along the second direction.

[0017] The use of linear guides simplifies the mechanical structure. Using a second motor to drive the second drag chain, the movement of the fixed plate in the second direction can be precisely controlled, ensuring precise alignment of the repair tool with the PCB. This precise control helps improve the accuracy and efficiency of repair operations.

[0018] In some embodiments, the repair tool includes a suction head, a heating head, a solder nozzle, and a lifting cylinder. The heating head is connected to an external heat source and is used to melt the solder terminals of the chip on the PCB. The suction head is connected to an external negative pressure device and is used to absorb the chip. The solder nozzle is used to solder the replacement chip. The lifting cylinder is used to drive the suction head, the heating head, and the solder nozzle to move along a third direction, where the first direction, the second direction, and the third direction are perpendicular to each other.

[0019] This technical solution, using an external vacuum device connected to a suction head and an external heating source connected to a heating head, enables precise chip suction and heating, improving operational accuracy and the success rate of chip replacements during repairs. A lifting cylinder drives the suction head, heating head, and solder nozzle in a third direction. This design allows the repair tool to adapt to PCBs of varying sizes and shapes, increasing its flexibility and applicability.

[0020] In some embodiments, the PCB board rework device further includes an electromagnetic pump tin furnace, which is disposed on the other side of the workbench along the second direction and is used to provide tin paste to the solder nozzle.

[0021] By adopting the above technical solution, the solder paste provided by the electromagnetic pump solder pot is usually more uniform and pure, which helps to improve the quality of solder joints, reduce soldering problems such as false solder joints and cold solder joints, and thus improve the rework quality of PCB boards.

[0022] In some embodiments, the PCB board repair device further includes a receiving platform, which is provided on a side of the electromagnetic pump tin furnace away from the workbench along the second direction and is used for placing chips.

[0023] By adopting the above technical solution, the setting of the storage platform helps to standardize the operating process, reduce operational errors caused by improper chip placement during the rework process, and keep the workbench tidy, avoiding the chaos caused by random placement of chips, thereby improving the cleanliness and safety of the work area.

[0024] In some embodiments, a plurality of bolt fixing holes are provided at both ends of the workbench along the first direction for being fixed to the PCB board by bolts.

[0025] By adopting the above technical solution, by providing multiple bolt fixing holes at both ends of the workbench, the PCB board can be fixed more firmly, reducing the risk of rework failure caused by movement or vibration of the PCB board during the rework process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of an embodiment of a PCB board repair device of the present invention.

[0027] In the picture:

[0028] 1. Machine; 2. Workbench; 3. Maintenance tool; 4. Connecting slide; 5. Fixing plate; 6. First guide rail; 7. First drag chain; 8. Second drag chain; 9. Connecting rod; 10. Fixing block; 11. Linear guide rail; 12. Electromagnetic pump tin furnace; 13. Storage platform; 14. Adsorption head; 15. Heating head; 16. Solder nozzle; 17. Bolt fixing hole. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0030] refer to Figure 1 , Figure 1 A three-dimensional diagram of a PCB board repair device provided by an embodiment of the present utility model is shown.

[0031] like Figure 1 As shown, the technical solution provided by the present application is a PCB board repair device, including a machine 1, a repair tool 3 and a drive component, wherein the machine 1 moves along a first direction ( Figure 1 The maintenance tool 3 includes a connecting slider 4, which is arranged on the maintenance tool 3 along the second direction ( Figure 1 The driving assembly includes a fixed plate 5, a first guide assembly and a second guide assembly. The fixed plate 5 extends along the first direction and has a first guide rail 6 on the top for slidingly cooperating with the connecting slider 4.

[0032] The first guide assembly includes a first drag chain 7, which is disposed on one side of the workbench 2 along the second direction and connected to the connecting slider 4, and is used to drive the maintenance tool 3 to move in the first direction relative to the first guide rail 6. The second guide assembly includes a second drag chain 8, which is disposed on one side of the workbench 2 along the first direction and connected to the bottom of the fixing plate 5, and is used to drive the fixing plate 5 to move in the second direction relative to the first drag chain 7, so that the maintenance tool 3 is aligned with the PCB board, with the first direction being perpendicular to the second direction.

[0033] The PCB board rework device provided in the present application, through the design of the first guide component and the second guide component, allows the repair tool 3 to move in two directions, reducing the time required for rework and improving work efficiency. It achieves precise positioning of the repair tool 3 relative to the PCB board, improves the accuracy and efficiency of repair, and can reduce the dependence on the operator's skills and reduce the possibility of human operational errors.

[0034] In some embodiments, reference Figure 1 The first guide assembly also includes a connecting rod 9 and a first motor. The connecting rod 9 extends along the second direction and is passed through the first drag chain 7. One end of the connecting rod 9 along the second direction is connected to the connecting slider 4, so that the maintenance tool 3 remains connected to the second guide assembly when moving along the first direction.

[0035] For example, by designing the connecting rod 9 and the first motor in the first guide assembly, the movement of the maintenance tool 3 along the first direction can be precisely controlled, which helps to improve the accuracy and efficiency of the maintenance operation.

[0036] In some embodiments, reference Figure 1 A fixing block 10 is provided at the other end of the connecting rod 9 along the second direction, which is used to abut and limit the first drag chain 7 when the connecting rod 9 moves along the second direction with the maintenance tool 3.

[0037] Illustratively, the design of the connecting rod 9 enables the maintenance tool 3 to maintain a stable connection with the second guide assembly when moving along the first direction, thereby enhancing the stability and reliability of the entire device.

[0038] In some embodiments, reference Figure 1 The second guide assembly further includes a linear guide rail 11 and a second motor. The linear guide rail 11 is provided on the other side of the workbench 2 along the first direction and is connected to the bottom of the fixed plate 5. The second motor is used to drive the second drag chain 8 to move along the second direction.

[0039] For example, the use of linear guide rails 11 simplifies the mechanical structure. By driving the second drag chain 8 with a second motor, the movement of the fixing plate 5 in the second direction can be precisely controlled, thereby achieving precise alignment between the repair tool 3 and the PCB. This precise control helps improve the accuracy and efficiency of repair operations.

[0040] In some embodiments, reference Figure 1 The maintenance tool 3 includes an adsorption head 14, a heating head 15, a solder nozzle 16 and a lifting cylinder. The heating head 15 is connected to an external heating source and is used to melt the solder ends of the chip on the PCB board. The adsorption head 14 is connected to an external negative pressure device to adsorb the chip. The solder nozzle 16 is used to solder the replacement chip. The lifting cylinder is used to drive the adsorption head 14, the heating head 15 and the solder nozzle 16 to move along the third direction ( Figure 1 The first direction, the second direction and the third direction are perpendicular to each other.

[0041] For example, a suction head 14 connected to an external negative pressure device and a heating head 15 connected to an external heat source can achieve precise suction and heating of the chip, improving operational accuracy and the success rate of chip replacement during maintenance. A lifting cylinder is used to drive the suction head 14, heating head 15, and solder nozzle 16 in the third direction. This design allows the repair tool 3 to adapt to PCB boards of different sizes and shapes, increasing the tool's flexibility and applicability.

[0042] In some embodiments, reference Figure 1 The PCB board rework device also includes an electromagnetic pump tin furnace 12, which is arranged on the other side of the workbench 2 along the second direction and is used to provide solder paste to the solder nozzle 16.

[0043] For example, the solder paste provided by the electromagnetic pump solder pot 12 is usually more uniform and pure, which helps to improve the quality of solder joints, reduce soldering problems such as false solder joints and cold solder joints, and thus improve the rework quality of PCB boards.

[0044] In some embodiments, reference Figure 1 The PCB board repair device also includes a receiving platform 13, which is arranged on a side of the electromagnetic pump tin furnace 12 away from the workbench 2 along the second direction and is used to place chips.

[0045] For example, the provision of the storage platform 13 helps to standardize the operating process, reduce operational errors caused by improper chip placement during the rework process, and keep the workbench 2 tidy, avoiding confusion caused by random placement of chips, thereby improving the cleanliness and safety of the work area.

[0046] In some embodiments, reference Figure 1 A plurality of bolt fixing holes 17 are provided at both ends of the workbench 2 along the first direction for fixing with the PCB board by bolts.

[0047] For example, by providing a plurality of bolt fixing holes 17 at both ends of the workbench 2, the PCB board can be fixed more firmly, thereby reducing the risk of rework failure caused by movement or vibration of the PCB board during the rework process.

[0048] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A PCB board repair device, characterized in that: include: The machine platform extends along the first direction and has a workbench on the top, wherein the workbench is used to place the PCB board; A maintenance tool, comprising a connecting slider, wherein the connecting slider is provided on one side of the maintenance tool along the second direction; A driving assembly, comprising a fixed plate, a first guide assembly and a second guide assembly, wherein the fixed plate extends along the first direction and has a first guide rail on the top for slidingly cooperating with the connecting slider; The first guide assembly includes a first drag chain, which is arranged on one side of the workbench along the second direction and connected to the connecting slider, and is used to drive the maintenance tool to move relative to the first guide rail along the first direction; The second guide assembly includes a second drag chain, which is arranged on one side of the workbench along the first direction and connected to the bottom of the fixed plate, and is used to drive the fixed plate to move along the second direction relative to the first drag chain so that the maintenance tool corresponds to the PCB board, and the first direction is perpendicular to the second direction.

2. The PCB board repair device according to claim 1, characterized in that: The first guide assembly also includes a connecting rod and a first motor. The connecting rod extends along the second direction and passes through the first drag chain. One end of the connecting rod along the second direction is connected to the connecting slider, so that the maintenance tool remains connected to the second guide assembly when moving along the first direction.

3. The PCB board repair device according to claim 2, characterized in that: The other end of the connecting rod along the second direction is provided with a fixing block, which is used to abut and limit the first drag chain when the connecting rod moves along the second direction with the maintenance tool.

4. The PCB board repair device according to claim 1, characterized in that: The second guide assembly also includes a linear guide rail and a second motor. The linear guide rail is arranged on the other side of the workbench along the first direction and is connected to the bottom of the fixed plate. The second motor is used to drive the second drag chain to move along the second direction.

5. The PCB board repair device according to claim 1, characterized in that: The repair tool includes an adsorption head, a heating head, a solder nozzle and a lifting cylinder; the heating head is connected to an external heating source to melt the soldering end of the chip on the PCB board; the adsorption head is connected to an external negative pressure device to adsorb the chip; the solder nozzle is used to solder the replacement chip; The lifting cylinder is used to drive the adsorption head, the heating head and the solder nozzle to move along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

6. The PCB board repair device according to claim 5, characterized in that: It also includes an electromagnetic pump tin furnace, which is arranged on the other side of the workbench along the second direction and is used to provide tin paste to the solder nozzle.

7. The PCB board repair device according to claim 6, characterized in that: It also includes a receiving platform, which is arranged on a side of the electromagnetic pump tin furnace away from the workbench along the second direction and is used for placing chips.

8. The PCB board repair device according to claim 1, characterized in that: The workbench is provided with a plurality of bolt fixing holes at both ends along the first direction for being connected and fixed to the PCB board by bolts.

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