Haas CNC machine tool and fixture setting and management (5)

Part III: turret <br> <br> select the appropriate tool holder and select the appropriate tool is equally important. For all machining applications, the shortest tool holder should be selected as much as possible. In addition, the setting of the tool in the tool holder should be as far as possible. This increases the clamping force of the tool holder to the tool and reduces vibration. The shorter the distance between the spindle head and the tip, the better the rigidity of the entire device. When cutting, increasing rigidity means less vibration. Haas Automation Machinery recommends that the balance of the tool holders with speeds up to 10,000 rpm or higher be in accordance with G2.5 or higher (at maximum speed). You can use a pre-balanced tool holder, but you should balance it again when installing the tool in the tool holder.

The tool in the tool holder should be fully supported, with only a few parts not supported

Tip: Balancing the tool holder will only improve the processing. It extends the life of the spindle and the tool and improves the surface quality and dimensional accuracy of the part. If the tool holder balance of the installed tool does not meet the requirements of G2.5, it may result in poor surface quality of the workpiece and damage to the spindle.

Note: If the spindle speed is required to exceed 10,000 rpm and the tool holder must be balanced, the end mill holder with the set screws should not be used. Since the set screw produces a one-way clamping force, the end mill holder does not allow the tool to function properly (concentric with the spindle). The most suitable tool holder for high-speed applications is the shrink-fit tool holder, the collet chuck (with balance nut), and the collet or hydraulic chuck. These tool holders produce a uniform clamping force on the tool, so the TIR is almost zero.

Tip: For high speed machining, the round shank tool should not have a Weldon plane. The Weldon plane loses balance due to uneven weight distribution. The length of the tool extending from the tool holder should be as short as possible.

Part IV: cutting tool <br> <br> in the choice of cutting tools, should first consider the operation to be performed. Here is a brief introduction to the most basic tools used in milling operations.

A drill bit is used to machine a cylindrical hole in a workpiece. The drill hole can be a through hole or a blind hole. A blind hole is a hole that does not completely penetrate the workpiece. Usually, a drill hole is required to be drilled to the "outer diameter depth" on the engineering drawings. This means that the aperture must be at a specified depth, regardless of the beveled head of the drill. When measuring the tool length offset, the length of the drill bit and its head is measured. So what is the depth of the hole to get the correct outer diameter depth? You need to know the length of the drill tip.

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Large Size Plate Drilling Machine

1.Drilling,reaming,chamfering,slot milling function,all drilling heads can work together,or independently.