Welding assembly fixture for QSP28 module flexible printed circuit board
Technical Field
The invention belongs to the technical field of optical communication, and particularly relates to a welding and assembling clamp for a QSP28 module flexible soft board.
Background
An optical module is a carrier for transmission between a switch and equipment, QSP28 is the core of a data center, but the existing 100G LR4 TOSA has problems in welding in use, because 4 paths of light emission exist, the requirement of each path on welding is high, the size of a flexible soft board is limited, welding pads are dense, and the requirements on operation methods and precision are high when electric soldering iron is manually used for welding. The invention provides a welding assembly clamp for a QSP28 module flexible soft board, which aims at the technical problems and well solves the problem.
Disclosure of Invention
The invention aims to design a welding clamp suitable for a laser welding machine, and solves the technical problem of insufficient welding precision of manual operation.
The technical scheme of the invention is as follows:
a welding assembly fixture for flexible soft boards of QSP28 modules comprises a base, an adjustable base, a PCBA positioning column, a first PCBA fixing clamp, a first PCBA locking device, a second PCBA fixing clamp, a boss sliding rail, a device locking device, a device clamping groove and a PCBA clamping groove;
the base is of a T-shaped structure, a boss sliding rail of an integrated structure is arranged on a vertical plate of the base, and the device clamping groove is matched with the boss sliding rail; according to requirements, the device clamping groove slides on the boss sliding rail, and the position of the device is adjusted;
the adjustable base is fixed on a transverse plate of the base, and a PCBA clamping groove is formed in the middle position of the adjustable base; a PCBA positioning column is arranged on the PCBA clamping groove and is matched with a through hole in the QSP28 module flexible soft board, so that the QSP28 module flexible soft board is preliminarily positioned; the two sides of the adjustable base are of boss structures, a first PCBA fixing clamp 4 is mounted on the boss structure on one side of the adjustable base 2 through a first PCBA locking device 5, a second PCBA fixing clamp 7 is mounted on the boss structure on the other side of the adjustable base 2 through a second PCBA locking device 6, and the first PCBA fixing clamp 4, the first PCBA locking device 5, the second PCBA fixing clamp 7 and the second PCBA locking device 6 jointly complete further fixing of the QSP28 module flexible soft board;
the lower part of the device clamping groove is provided with a track matched with the boss sliding rail, the upper part of the device clamping groove is provided with a through groove used for fixing a device, the lateral part of the device clamping groove is provided with a threaded hole, and the device locking device fixes the device through the threaded hole.
The invention has the beneficial effects that: the welding and assembling clamp for the QSP28 module flexible soft board, which is designed by the invention, can improve the product consistency, especially can play a significant role in the welding of high-speed module products, and aiming at the characteristic that the QSFP28 module has more and dense pins, the invention is matched with a laser welding machine for use, can well avoid the problem and can more fully play the performance of devices, and solves the defects of large manual adjustment difference, unattractive appearance welding and the like.
Drawings
Fig. 1 is a schematic view of the application of the welding assembly fixture for QSP28 module flexible printed circuit boards according to the present invention.
Fig. 2 is a schematic view of the welding assembly jig for QSP28 module flexible printed circuit boards according to the present invention.
In the figure: 1, a base; 2 an adjustable base; 3, positioning columns of PCBAs; 4, a first PCBA fixing clamp; 5 a first PCBA locking device; 6 a second PCBA locking device; 7 a second PCBA fixing clamp; 8 boss slide rails; 9 device locking device; 10 device card slots; 11PCBA card slot.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
A welding assembly fixture for QSP28 module flexible soft boards comprises a base 1, an adjustable base 2, a PCBA positioning column 3, a first PCBA fixing clamp 4, a first PCBA locking device 5, a second PCBA locking device 6, a second PCBA fixing clamp 7, a boss slide rail 8, a device locking device 9, a device clamping groove 10 and a PCBA clamping groove 11;
the base 1 is of a T-shaped structure, a boss slide rail 8 of an integrated structure is arranged on a vertical plate of the base, and the device clamping groove 10 is matched with the boss slide rail 8; according to the requirement, the device clamping groove 10 slides on the boss sliding rail 8, so that the position of the device is adjusted;
the adjustable base 2 is fixed on a transverse plate of the base 1, and a PCBA clamping groove 11 is formed in the middle position of the adjustable base 2; a PCBA positioning column 3 is arranged on the PCBA clamping groove 11, and the PCBA positioning column 3 is matched with a through hole on the QSP28 module flexible soft board to realize the primary positioning of the QSP28 module flexible soft board; the two sides of the adjustable base 2 are boss structures, a first PCBA fixing clamp 4 is arranged on the boss structure on one side of the adjustable base 2 through a first PCBA locking device 5, a second PCBA fixing clamp 7 is arranged on the boss structure on the other side of the adjustable base 2 through a second PCBA locking device 6, and the first PCBA fixing clamp 4, the first PCBA locking device 5, the second PCBA fixing clamp 7 and the second PCBA locking device 6 jointly complete the further fixing of the QSP28 module flexible soft board;
the lower part of the device clamping groove 10 is provided with a rail matched with the boss sliding rail 8, the upper part of the device clamping groove is provided with a through groove for fixing a device, the side part of the device clamping groove is provided with a threaded hole, and the device locking device 9 fixes the device through the threaded hole.
The boss slide rail 8 is an electric boss slide rail.
Firstly, placing a PCBA to be welded in a PCBA clamping groove 11, positioning the position of the PCBA by using a PCBA positioning column 3, fixing the PCBA by using a PCBA fixing clamp and locking the PCBA by using a PCBA locking device; the method comprises the steps of placing a to-be-welded device in a device clamping groove 10, locking and fixing the to-be-welded device by using a device locking device 9, placing an assembled clamp under a tool microscope, transmitting the position relation between a pad of the PCBA and a pad of the QSP28 module flexible soft board to a computer display screen through a video cable by using the tool microscope, and further controlling an electric boss sliding rail which adjusts the position of the device clamping groove 10 until the positions of the pad of the PCBA and the pad of the QSP28 module flexible soft board are completely overlapped.