Boring is an internal diameter turning process that uses a tool to enlarge holes or other circular outlines, and its application range is generally from semi rough to fine machining, and the tool used is usually a single edge boring tool (called a boring bar).
Drilling holes or blind holes on solid materials by means of twist drill, flat drill or central drill is called drilling. Besides drilling, drilling also includes reaming and counterboring. So drilling is a kind of drilling.
The method of machining reverse boring by reverse boring is called reverse boring.
The utility model relates to a single blade fine tuning boring cutter for hole processing, which includes a knife body and a knife rod. The feature lies in that the knife body is built with a sliding knife clamp, a fine tuning nut is fixed on the slide knife clip, and the micro adjusting screw is connected by a limit nut, a limit bushing and a knife body, and the micro adjusting nut and the micro screw. The adjusting screw is composed of a pair of thread transmission mechanisms, and a cutter bar is arranged at the end of the sliding clamp, and is locked by a locking screw, and the blade is positioned at the end part of the cutter bar. One end of the fine tuning screw is provided with a scale plate, and a butterfly spring is arranged between the dial and the limiting nut. Compared with the existing fine fine boring boring cutter, the utility model has compact structure, convenient adjustment of threaded transmission mechanism, the boring range can be from 2mm to 150mm, the scale plate is rotated each one, the precision is 0.01mm, the adjustment range is large and the adjusting precision is high.
Working principle of a floating boring knife: the utility model belongs to a floating boring cutter, which comprises a boring cutter body and a cap, which is composed of two pieces of blade, which is buckled with a cap and keeps floating on the boring cutter body, and the feed micro adjustment mechanism is characterized by the organic composition of a feed rate adjusting mechanism in a boring cutter body and a boring blade. The blade of the blade is connected to the main axis of the machine tool. Therefore, it has two advantages compared with the existing floating boring cutter.
The feed rate can be adjusted directly without removing the blade.
2. When working, the blade is always rotated by spindle, so the accuracy of boring is higher.
Quick change boring bar: the utility model provides a labor-saving quick changing boring tool bar for boring machine, boring milling machine and machining center. The utility model is composed of a taper shank, a cutter body step shaft, a friction fastening sleeve, a quick change tool holder and a cutter head fastening screw. Its characteristic is that the surface of the step shaft is matched with the inner hole of the friction fastening sleeve, and the fast changing tool bar is connected with the thread of the knife body step shaft. When the thread is tightened, the end face A of the end face is tightly attached to the end face of the friction fastening sleeve, and the other end face of the friction fastening sleeve is tightly attached to the end face of the knife body step shaft at the same time, so that the quick change of the knife rod and the friction are fastened. The sleeve and cutter body step shaft are connected into one whole, thus centering and twisting are realized.
A cutting tool that has one or two cutting parts, which is used for rough machining, semi finishing or finishing of existing holes. The boring cutter can be used in a boring machine, a lathe or a milling machine. Because of the different clamping methods, the boring tool handle has various forms, such as square handle, Morse taper shank and 7:24 taper shank.
The shape of the cutting part of the single edge boring cutter is similar to that of the lathe tool. In order to achieve high dimensional accuracy, the size of the boring cutter needs to be adjusted accurately. A fine tuning boring cutter can accurately adjust the bore size on the machine tool. It has a precise indicator plate with a precision cursor line. The indicator plate is composed of a pair of precision silk rod and nut pairs with the core of the boring cutter head. When the nut is rotated, the core rod with a cutter head can move straight along the direction key, and the reading accuracy can reach 0.001 millimeters by means of the vernier scale. The size of boring cutter can also be pre adjusted by the tool presenter outside the machine tool.
The double edge boring cutter has two cutter teeth which are distributed simultaneously on both sides of the center. Because of the balance of the radial force produced during the cutting, the cutting amount can be increased and the production efficiency is high. The double edged boring cutter is divided into a floating boring cutter and a fixed boring cutter according to whether the blade is floating on the boring bar. The floating boring cutter is suitable for the finishing of holes. It is actually equivalent to a reamer, which can bore holes with high dimensional accuracy and smooth surface, but can not correct the straight deviation of holes. In order to increase the regrinding frequency, the floating boring cutter is often made of adjustable structure.
In order to meet the needs of various sizes of holes and holes and reduce the specifications of boring cutters, boring bar and cutter head are designed as a series of basic parts -- modules. According to the requirements of the workpiece, appropriate modules can be selected to make all kinds of boring knives so as to simplify the design and manufacture of the tools.