Air clamp and air clamp adjustment method, pcb sheet fixing device

Abstract

The invention relates to the field of mechanical processing, and discloses an air clamp, an air clamp adjustment method, and a PCB sheet material fixing device. Wherein, the air clamp includes a first adjustment end and a second adjustment end; the first adjustment end includes a first air clamp, a Y-axis adjustment mechanism, a Y-axis adjustment slot and a first X-axis adjustment hole, and the Y-axis adjustment mechanism is arranged on the Y-axis In the shaft adjustment groove, the Y-axis adjustment mechanism is used to determine the position of the first positioning part of the PCB sheet on the Y-axis; the second adjustment end includes a second air clamp and a second X-axis adjustment hole; the first X-axis adjustment hole Position and the second X-axis adjustment hole position are used to adjust the position of the air clamp in the X-axis direction; the first air clamp is used to clamp the first positioning part of the PCB sheet, and the second air clamp is used to clamp the PCB board. The second positioning part of the material. The invention can realize the independent adjustment of the air clamp in the X-axis direction and the Y-axis direction through the X-axis adjustment hole position and the Y-axis adjustment mechanism, and has the advantages of low cost, simple adjustment and high adjustment efficiency.

Description

technical field [0001] The invention belongs to the field of machining, and more particularly relates to an air clamp, an air clamp adjustment method, and a PCB sheet material fixing device. Background technique [0002] When making a circuit board (PCB), holes need to be drilled at precise locations on the board. In general, multiple circuit boards can be stacked together to form a PCB sheet to be processed (the PCB sheet also includes a paper backing board on the bottom layer and a conductive aluminum foil on the top layer). Two positioning pins for positioning are also provided on the PCB sheet. [0003] There are three existing ways to drill holes on the circuit board. Among them, the processing object of the first type is a light plate without a pattern, and the processing accuracy is low, and the positioning pin can be fixed by the air clamp device. The second is to install a fixed bakelite board on the workbench first, drill a positioning hole with the Z-axis drill...

AI Technical Summary

Problems solved by technology

The second drilling method has high processing precision, but it needs to consume Bakelite board, and the processing cost is high

The processing cost of the third type is lower, but in the process of processing, the air clamps used are split air clamps (including front air clamps and rear air clamps), and it takes a lot of time to adjust the position of the air clamps, which greatly reduces Improve the efficiency of circuit board drilling

Due to the coupling effect between the X direction and the Y direction, the adjustment process is very time-consuming

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