Method for assisting alignment of a pin header
The present invention relates to a method and tool for assisting alignment of one or more pin headers. In particular, the invention relates to a tool-assisted method of aiding alignment of one or more pin headers placed on a printed circuit board (PCB) prior to soldering, as well as to the tool itself.
1. A method of assisting alignment of a pin header prior to soldering, the pin header comprising pins supported by a collar, the method comprising:
placing the pin header on a printed circuit board (PCB) such that the pins on a first side of the collar engage the surface of the PCB, and such that the collar contacts the surface of the PCB; and
positioning in contact with the pins on the first side of the collar a removable tool so as to exert a force on the pins on the first side of the collar, thereby causing the collar to urge the pins on a second side of the collar into a soldering position.
2. The method of claim 1 , wherein the pin header is a right-angled pin header.
3. The method of claim 1 , wherein the positioning step comprises removably positioning the tool in contact with the pins of multiple pin headers placed on the PCB, thereby assisting alignment of the multiple pin headers simultaneously.
4. The method of claim 1 , wherein the tool comprises a supporting element removably engageable with the PCB, and wherein the method further comprises engaging the supporting element with the PCB.
5. The method of claim 4 , wherein the tool comprises a biasing portion joined to the supporting element, and wherein positioning step comprises removably positioning the biasing portion in contact with the pins of the pin header.
6. The method of claim 3 , wherein the supporting element is arranged to stabilise the tool when the tool is positioned in contact with the pins of the pin header.
7. The method of claim 3 , wherein the supporting element comprises members for engaging with corresponding apertures in the PCB.
8. The method of claim 1 , wherein the collar contacts the surface of the PCB at a fulcrum point, and wherein the positioning step comprises removably positioning the tool in contact with the pins on the first side of the collar, thereby urging the pins on the second side of the collar into the soldering position by causing the collar to rotate about the fulcrum point.
9. The method of claim 1 , wherein the tool comprises one or more recessed portions, and wherein the method further comprises receiving the collar of the pin header in a recessed portion during positioning of the tool.
10. The method of claim 9 , wherein the one or more recessed portions are each sized such that, when receiving the collar of the pin header, a clearance is maintained between the collar and the tool.
11. The method of claim 1 , wherein the tool is weighted so as to prevent the pins on the second side of the collar from tending away from the soldering position when the tool is positioned in contact with the pins on the first side of the collar, by exerting an axial force along the pins on the first side of the collar and in a direction of the PCB.
12. The method of claim 1 , wherein the centre of gravity of the pin header causes the pins on the second side of the collar to tend away from the soldering position, and wherein the centre of gravity of the tool counterbalances the centre of gravity of the pin header during the positioning step, thereby preventing the pins on the second side of the collar from tending away from the soldering position.
13. The method of claim 1 , wherein in the soldering position the pins on the second side of the collar are substantially parallel to the surface of the PCB.
14. The method of claim 1 , wherein the positioning step comprises positioning the tool using a pick-and-place machine.