14 results about "Selective soldering" patented technology

The utility model relates to the technical field of welding, in particular to selective soldering tin equipment which comprises a bottom box, first electric guide rails, second electric guide rails and the like, two groups of first electric guide rails are mounted at the bottom in the bottom box, each group comprises two first electric guide rails, and the second electric guide rails are jointly mounted on sliding blocks of the two first electric guide rails in the same group. The first electric guide rail and the second electric guide rail can be controlled to operate through the PC control systems, the tin pots are moved to the positions below the defective welding spots, then the PC control systems control the telescopic rods of the lifting air cylinders to stretch out and draw back, the tin pots are driven to move up and down, repair welding is conducted on the defective welding spots, the two PC control systems and the two tin pots form two stations, and welding efficiency is improved. When one workpiece breaks down, the operation of the other workpiece cannot be affected, the working efficiency is ensured, the machining time and requirements of different workpieces are different, and the working efficiency can be improved through separate control.

This invention provides a fully automated selective soldering system and method, comprising: a flux spraying mechanism arranged sequentially; a first conveying mechanism for conveying a PCB board to the spraying station of the flux spraying mechanism; a preheating mechanism for preheating the sprayed PCB board, wherein the preheating mechanism includes a third conveying mechanism; a second conveying mechanism for conveying the preheated PCB board above a rotary soldering mechanism; and a rotary soldering mechanism for soldering the preheated PCB board. The flux spraying mechanism is located below the first conveying mechanism, and the rotary soldering mechanism is located below the second conveying mechanism. The first and second conveying mechanisms are respectively connected to both ends of the third conveying mechanism. This arrangement simplifies the structure of the transmission section, making the overall equipment structure more compact; and significantly shortens the path of the PCB board between different processes, resulting in a substantial improvement in work efficiency.

The invention relates to the technical field of PCBA (printed circuit board assembly) welding, in particular to PCBA selective welding equipment with reinspection AOI (automatic optical inspection), which comprises a frame body, a feeding device movably arranged on the frame body, a visual positioning device matched with the feeding device for use and a welding device matched with the feeding device for use, the feeding device is used for feeding PCBA boards to be machined, the visual positioning device is used for conducting visual positioning on the PCBA boards to be machined borne by the feeding device, the welding device is used for conducting welding treatment on the PCBA boards subjected to visual positioning, the frame body is provided with a control system, and the feeding device, the visual positioning device and the welding device are all electrically connected with the control system. Automatic visual inspection is achieved, welding parameters are adjusted in a targeted mode, the welding requirement of a high-quality circuit board is met, the situation of poor welding is avoided, the production cost is reduced, and the welding efficiency and the welding quality are improved.

The utility model discloses a kind of wear-resistant PCB board selection welding jigs, comprising: substrate, its corner is equipped with assembly slot;Wear plate, its split positioning is on assembly slot;Bump, its positioning is at the bottom of wear plate, it is engaged with chain for jig conveying;Guide strip, it is set to the side of wear plate, it is abutted with the side of chain.The utility model's selection welding jig can greatly slow down the wear rate of corner after jig use, improve its service life, so that the conveying of chain to jig is more stable.Through bump and chain engagement butt joint, guide strip and chain side abut, to replace the synchronous driving conveying mode of traditional jig by the friction force of bottom and chain with multi-surface friction fit structure direct pushing composite driving mode, to further reduce jig wear, wear plate can be disassembled, replace, to reduce jig use cost, ensure the stability of its conveying.

This application provides a display device and its display panel. The display device includes a display panel comprising a display area and a bonding area. The display area includes a first side and a second side opposite to each other, and the bonding area is located on the first side. The display panel includes a first display panel and a second display panel whose second sides are spliced ​​together to form a display device with a large display area. Furthermore, the display panel has redundant electrodes, allowing for selective soldering of light-emitting elements of corresponding colors onto the display panel according to display requirements during the fabrication of the display device, avoiding the problem of single-color dot misalignment after splicing the display panels. Additionally, the redundant electrodes in the display panel allow for the soldering of corresponding light-emitting elements onto the first display panel and the second display panel respectively during the fabrication of the display device, eliminating the need to fabricate two display panels with different substrates, thus simplifying the fabrication process of the display device.

The invention provides a manufacturing method of a circuit board assembly, and the method comprises the steps: arranging a first frame plate and a second frame plate which are different in thickness on the same surface of a first circuit board, welding a second circuit board on the first frame plate, and welding a third circuit board on the second frame plate in a laser welding manner. At least one time of reflow soldering is replaced by laser soldering, the laser soldering belongs to selective soldering, and compared with the reflow soldering, the laser soldering does not need to place the electronic component and the circuit board in a high-temperature environment, so that the reflow soldering frequency is reduced equivalently, and the frequency of the electronic component in the high-temperature environment is further reduced; and the risk that electronic components are damaged can be reduced. The invention further provides a circuit board assembly and a terminal device.

A selective wave soldering system (10) for selective wave soldering of circuit boards includes a solder can (40) comprising a solder nozzle (22) detachably mounted on the solder can (40), wherein the solder nozzle (22) has a nozzle base and a nozzle neck (56), wherein a nozzle opening is provided at the free end of the nozzle neck (56), the solder can (40) is mounted on a moving unit (16) movable in the horizontal plane along the x and y axes and in the vertical direction along the z axis (44), and includes a control unit (32) for controlling the moving unit (16), characterized in that... The hopper (20) for receiving different solder nozzles (22) is arranged on the moving unit (16), characterized in that a clamping unit (34) is provided, the clamping unit (34) including clamping fingers (38) for clamping the solder nozzles (22), wherein the clamping unit (34) can be moved along the z-axis by a drive unit (36) controlled by a control unit (32), and wherein the control unit (32) is designed to control the moving unit (16), the drive unit (36) and the clamping unit (34) such that the solder nozzles (22) in the hopper (20) can be clamped, lifted and lowered in the solder can (40) by the clamping unit (34).

The invention relates to a calibration tool (1) for calibration for a selective welding device (100), comprising a workpiece carrier unit (2) for receiving at least one or more workpieces (3) and at least one workpiece, such as a printed circuit board (4), and at least one measuring unit (3a). Wherein the measuring unit (3a) is designed as a distance measuring unit (5), which can be accommodated within the workpiece carrier unit (2) for calibrating a distance (2b) of a bearing surface (2a) of the workpiece carrier unit (2) to at least one welding tip (6) of the welding unit (101); or is designed as at least one temperature measuring unit (7) which can be accommodated within the workpiece carrier unit (2) for calibrating at least one heating power of the preheating unit (102); the welding unit (101) is designed as a workpiece carrier unit (2) or as at least one wave height measuring unit (8) which can be accommodated within the workpiece carrier unit (2) in order to calibrate a wave height (9) at at least one welding tip (6) of the welding unit (101).

The invention relates to a method for establishing a signal connection (49) between at least one power module (10, 94, 96, 98) and a control circuit board (40), comprising the following method steps: According to a), a wiring plane (26) is provided on at least one power module (10, 94, 96, 98) having metal connecting surfaces (64) for architecture elements (18, 20, 38, 50) of the signal connection (49). According to method step b), the architecture elements (18, 20, 38, 50), in particular pin feet (58), and the metal connecting surfaces (64) are integrally joined, and a head region (60) of the architecture elements (18, 20, 15, 38, 50) of the signal connection (49) is then joined to the control circuit board (40) by pressing or selective soldering (56, 108) into the control circuit board.

The utility model discloses a kind of general fixture for PCBA selective welding, comprising: gluing fixture, protective gasket and welding tray, multiple groups of placement grooves for placing PCB board are set up on gluing fixture, limiting groove corresponding to the placement groove is set up on welding tray, the clearance for PCB board main body is provided on protective gasket, the periphery of clearance on protective gasket is provided with several avoidance hole groups for the lead through on PCB board, limiting groove is provided with the shielding plate for protecting SMT element on PCB board, the edge of the frame of shielding plate and the edge of the limiting groove form first hollow position, second hollow position and third hollow position, at least two groups of positioning holes are provided on the four periphery of the gluing fixture, guiding column is provided on welding tray, which is matched with positioning hole and is installed, the utility model realizes two-in-one when jig welding, reduces the frequent taking and placing board action of personnel, improves operation efficiency.

1. The name of the design product: double-station selective soldering machine. 2. The use of the design product: the design product is used as a double-station selective soldering machine. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

The invention discloses a full-automatic production process of a GMOV composite element, and belongs to the technical field of automatic manufacturing of electronic elements. According to the method, lead forming and tinning, positioning and leveling, visual guiding element assembling, controllable atmosphere preheating and selective welding, AI intelligent detecting and sorting, cleaning and double-coating coating and full-process data tracing are sequentially carried out. According to the technology, through full-process automatic integration, the defects that in a traditional production mode, procedures are dispersed, manual operation is relied on, the positioning precision is low, and quality fluctuation is large are overcome, and high-precision assembly and high-reliability welding are achieved. And meanwhile, intelligent quality detection and cloud data tracing are combined, so that the production efficiency and the product consistency and reliability are remarkably improved, the full-life-cycle quality management of a single product is realized, and the method is suitable for large-scale and high-quality manufacturing requirements of GMOV elements.

The invention relates to a method for producing a signal connection (49) between at least one power module (10, 94, 96, 98) and a control board (40) comprising the following method steps: According to a), a wiring level (26) is provided on at least one power module (10, 94, 96, 98) with metallic connection surfaces (64) for architectural elements (18, 20, 38, 50) of the signal connection (49). After process step b), the architectural elements (18, 20, 38, 50), in particular pin feet (58), and the metallic connection surfaces (64) are joined by a material bond, followed by joining a head area (60) of the architectural elements (18, 20, 38, 50) of the signal connection (49) to the control board (40) by pressing or selectively soldering (56, 108) into it.

The application discloses a selective soldering machine with a solder pump capable of intelligent switching, which comprises a machine cover, a PCB clamping and conveying device and a solder pump intelligent switching device. A PCB feeding port is formed in the middle of the left end face of the machine cover, and a PCB discharging port is formed in the middle of the right end face. The PCB clamping and conveying device is fixedly arranged in the machine cover along the left-right direction, and the left and right ends of the device correspond to the PCB feeding port and the PCB discharging port. The solder pump intelligent switching device is fixedly arranged in the machine cover and located below the PCB clamping and conveying device, and has two solder pumps arranged upwards and capable of switching the welding positions in a rotating mode. The two solder pumps are switched in a rotating mode, so that the occupied space of the whole device can be greatly reduced. The two solder pumps are switched in a rotating mode, so that the operation is simple, and the movement paths of the two solder pumps are relatively short, so that the running speed is high, and the working efficiency of the soldering machine can be effectively improved.