Manufacturing method of high-precision center guide sleeve for positioning and drilling of workpiece

1. The utility model relates to the technical field of workpiece drilling and positioning, in particular to a high-precision center guide sleeve for workpiece positioning and drilling.

Background technique:

2. In fitter and mechanical drilling, many lines need to be drawn. In order to prevent the drawn lines from being wiped off, a small hole (small eye) must be marked at a certain distance on the drawn line to mark this The punch is called a sample punch, because the hole is punched out with a punch (also called a Yang punch), so this anchor point groove is called a foreign punch, but after all, the accuracy of manual work depends on the operator’s technology. It has a lot to do. Holes are positioned with an electronic ruler, and the center drill and the drill bit can be used to accurately drill the hole at the position to be drilled. The function is to avoid the deviation of the hole. There is a small hole in the location, commonly known as "proofing the eye."

3. However, when positioning on steel plates or harder materials, it is unreliable to locate the punching points of the sample punch with a single point. It is necessary to measure the horizontal and vertical axis at the position where the holes are required to be punched. Positioning to ensure the exact position of the sample punching hole.

4. But even if the criss-cross points are accurate, when punching and punching, the diameter is usually 2

A shallow pit in the range of 3mm, because the sample punch is hammered by hand and nailed to the workpiece to be positioned. This method is easy to be deflected. When the sample punch is punched, the angle of the sample punch is skewed, or the hammer Deflection occurs when the sample is punched, and once it is deflected, 2 will appear

The deviation of the sample hole of 3mm leads to the problem of incorrect vacancy and inaccurate fit with other workpieces. Often a difference of 1mm will cause the bolts or positioning pins of the mechanical workpiece to be misaligned, resulting in the failure of the workpiece.

5. Based on this, the utility model designs a high-precision center guide sleeve for positioning and drilling of workpieces to solve the above-mentioned problems.

Please contact us at zhang@pride-cnc.com