Pcb circuit board, also known as printed circuit board, is a provider of electrical connections for electronic components. Its design is mainly layout design. The main advantage of using circuit boards is to greatly reduce wiring and assembly errors, and improve the level of automation and production labor rate. , According to the number of circuit boards, it can be divided into single-sided, double-sided, four-layer, six-layer and other multi-layer circuit boards.

　　In the prior art, during the welding process of the devices on the pcb board, the pcb board is easy to move due to human action, which affects the welding quality of the device. Some clamping plates are used to clamp the two sides of the pcb board to ensure the pcb board However, the pcb board is very thin, and it is easy to break during the clamping process; and the device is butted in the welding hole on the pcb board during soldering, and then the solder is soldered on the outside of the device and the welding hole with a soldering iron, and the welding hole on the pcb board There are a lot of them, and the solder is easily soldered on the surface of other solder holes during the soldering process, causing the solder holes to be blocked and affecting the soldering quality and efficiency of the device.

　　A pcb board structure that facilitates the welding of components on a pcb board, including a pcb board, the pcb board is slidably connected to the inside of a limit sleeve, the inside of the limit sleeve is slidably connected to a limit mechanism, and the inside of the limit sleeve is provided with a sliding groove , the limiting mechanism is slidably connected to the inside of the sliding groove, the limiting sleeve is slidably connected to the interior of the positioning sleeve, the positioning sleeve is slidably connected to the surface of the support seat, the surface of the limiting sleeve is welded with a positioning slider, and the positioning sleeve There is a positioning chute inside, the positioning slider is slidably connected to the inside of the positioning chute, the inner part of the limit sleeve and the positioning sleeve are provided with adjustment holes, and the inside of the adjustment holes is connected with an adjustment sleeve rod, the An adjusting rod is slidably connected to the inside of the adjusting sleeve rod, an elastic clamping block is welded on the surface of the adjusting rod, a clamping groove is arranged inside the limit sleeve, and the elastic clamping block is clamped inside the clamping groove, and the pcb board The inside of the pcb board is provided with a solder tank, and the inside of the pcb board is provided with a device hole, and the device hole is arranged on the inner side of the solder tank.

　　Preferably, the limit sleeve is provided with two groups, the limit sleeve is composed of a rectangular frame and a rectangular block, the rectangular block is welded on the lower surface of the rectangular frame, the pcb board is slidably connected inside the hollow part of the rectangular frame, and the limit mechanism is composed of "Convex"-shaped rod, spring and ring, the ring is welded on the surface of the protruding part of the "convex" rod, the spring is sleeved on the surface of the protruding part of the "convex" rod, and the horizontal part of the "convex" rod is squeezed On the surface of the pcb board, the sliding groove is arranged on the inner upper end of the rectangular frame, and the protruding part of the "convex" shaped rod is slidably connected inside the sliding groove.

　　Preferably, the positioning sleeve has a hollow rectangular structure, the positioning slider is welded on the surface of the rectangular block on the limit sleeve, and the rectangular block is slidably connected in the hollow part of the positioning sleeve through the positioning slider and the positioning chute. A sliding groove is provided, and the positioning sleeve is slidably connected on the surface of the sliding groove.

　　Preferably, the adjusting hole on the positioning sleeve is in a round hole structure, the adjusting hole on the limiting sleeve is arranged in a rectangular block, the adjusting hole on the limiting sleeve is in a rectangular hole structure, the adjusting sleeve rod is in a hollow cylindrical structure, and the adjusting rod is a round rod Structure, the adjusting rod is slidably connected in the hollow part of the adjusting sleeve rod, the elastic clamping block is composed of an isosceles trapezoid block, a rectangular block and a spring, the interior of the adjusting rod is provided with a mounting groove, the spring is welded on the inner wall of the mounting groove, and the rectangular block is welded on the inner wall of the mounting groove. The inner vertical surface of the spring and the isosceles trapezoidal elastic block, the clamping groove is arranged on the inner side of the adjustment hole on the limit sleeve, and the isosceles trapezoid block is clamped inside the clamping groove.

　　Preferably, there are multiple sets of solder baths and device holes, each group of device holes is provided with a set of solder baths at the outer ends of the device holes, the device holes are butted inside the device holes, and the solder is welded between the inside of the solder baths and the surface of the device.

　　Compared with the prior art, the beneficial effects of the present utility model are:

　　1. Adjust the position of the positioning sleeve on the surface of the support seat, pull up the limit mechanism when welding the device, slide the pcb board into the limit sleeve and release the limit mechanism, so that the limit mechanism is squeezed on the surface of the pcb board to ensure The quality and efficiency of the device welding, the limit mechanism and the positioning sleeve are slid to different positions through the sliding groove, and the device can be welded in different solder grooves on the pcb board, the structure is simple, and the device is easy to be welded;

　　2. When soldering the device, pull up the limit mechanism and slide the pcb board into the limit sleeve. After the limit mechanism fixes the pcb board, the device is butted in the solder tank, and the solder is soldered to the device and the hole of the device with a soldering iron. Internally, the solder will not be soldered in other groups of solder tanks to avoid blockage of other groups of solder tanks, thereby ensuring the quality and efficiency of device soldering, which is suitable for promotion.

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