Printed circuit board positioning device
A technology for printed circuit boards and positioning devices, which is applied in the directions of printed circuits, printed circuit manufacturing, and assembling printed circuits with electrical components. Solder paste printing is too thick to achieve the effect of stable support, uniform force and increased contact area
Inactive Publication Date: 2016-11-09
成都俱进科技有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a printed circuit board positioning device to solve the problem that the middle part of the PCB board cannot be aligned with the PCB board due to the gravity of the PCB board itself or the slight concave deformation of the PCB board when using the above-mentioned PCB board support positioning structure in the current SMT equipment in the industry. The solder paste stencil is closely adhered, resulting in the problem that the solder paste is printed too thick and causes short circuit of component pins to produce defective products.
Method used
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Embodiment 1
[0022] Such as figure 1 As shown, the present embodiment includes a rectangular bottom plate 5, strip plates 1 are respectively arranged on the two long sides of the bottom plate 5, and reinforcing plates 3 are installed on the opposite side walls of the two strip plates 1, A plurality of draw-in grooves 2 arranged side by side and perpendicular to the strip-shaped plate 1 are opened on the reinforcing plate 3, and the two ends of the partition plate 4 are respectively placed in two oppositely arranged draw-in grooves 2; In the short side direction, a plurality of parallel air holes 6 are opened on the bottom plate 1 , and the plurality of air holes 6 are located between two adjacent card slots 2 .
[0023] During use, the bottom plate 5 is installed on the output end of the lifting device, the net plate is fixed on the top of the two strip plates 1, and the upper end faces of the plurality of partition plates 4 constitute a supporting surface for the circuit board, and the ci...
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The invention discloses a printed circuit positioning device, which comprises a rectangular base plate, and is characterized in that two long sides of the base plate are respectively provided with bar-shaped plates, the opposite side walls of the two bar-shaped plates are provided with reinforcement plates respectively, each reinforcement plate is provided with a plurality of clamping slots which are arranged side by side and are perpendicular to the corresponding bar-shaped plate, and two ends of partition plates are respectively arranged in two oppositely arranged clamping slots. The plurality of partition plates are uniformly distributed on the base plate, each local part at the lower surface of a circuit board is enabled to be uniformly stressed, and the middle part of the circuit board is enabled to be sufficiently stressed in particular, so that the middle part of the circuit board does not collapse or sink when the circuit board is contacted with a web plate, thus solder paste is enabled to be uniform in thickness distribution in coating, a circumstance that component pins are short-circuited in use after surface mounting of the circuit board because the solder paste at the middle part of the circuit board is too great in thickness is avoided, and the processing quality of the circuit board is greatly improved.
Description
technical field [0001] The invention relates to the processing and manufacturing of circuit boards, in particular to a printed circuit board positioning device. Background technique [0002] The Chinese name of PCB is "printed circuit board", also known as printed circuit board and printed circuit board. It is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made using electronic printing technology (ie SMT), it is called a "printed" circuit board. [0003] In the prior art, when the PCB board enters the solder paste printing process of the placement machine, the PCB board support positioning structure has the following technical defects: 1. This support positioning structure only relies on supporting the two ends of the PCB board to realize the support positioning of the entire P board, The middle end of the PCB board is suspended. When the incoming PCB without deforma...
Claims
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IPC IPC(8): H05K3/34
CPCH05K3/34H05K2203/0165
Inventor 杨键
Owner 成都俱进科技有限公司