2013年9月3日星期二

Quasi-involute bevel gear milling machine taper hob

Quasi-involute bevel gear milling machine taper hob, continuous indexing generating method according to gear machine tools. Teeth when cutting taper hob first big-endian, then it smaller diameter end of the cutting, the cutting grinding wheel order to ensure Diamond blade throughout the cutting process, machine controlled by a abrasive grinding variable transmission speed gear hob, a cradle, hob workpiece are for continuous rotary motion, processing a workpiece, cradle back and forth once. Cradle workpiece rotation generated by differential constitutive idea developed into a movement of the workpiece contour length obtained along the tooth profile curve.

Combined face cutter blade, continuous generating method according to indexing gear machine

Extend Epicycloid bevel gear milling machine using extended Epicycloid bevel gear cutter, or pole face milling cutter body grinding wheel, according to a continuous indexing gear generating method machine. Teeth, the cradle cutter parts are treated as a continuous rotary motion, while the feed movement cradle for synthetic diamond a workpiece cradle back and forth once. Cutter workpiece continuous rotation of the workpiece to obtain a certain number of teeth Diamond blade indexing, and the formation of tooth length curve. Rotating the workpiece additional motion cradle combine to produce the generating motion of the workpiece to obtain tooth curve.

Pole plate straight bevel gear milling machine using two staggered tooth cutter knives

Pole plate straight bevel gear milling machine using two knives staggered tooth cutter, milling generating method according to unify around two alveolar tooth surface, high production efficiency, combined for the mass production. Because no tooth cutter and workpiece length direction of the relative abrasive wheels of the alveolar bottom of the abrasive wheels, processing module tooth width are restricted. This machine can also be equipped with automatic loading and unloading devices, to achieve a single automated.
Pull straight bevel gear
Polycrystalline diamond to use a large diameter cutter pull a turn round from an entity with blanks cut out an alveolar molding machine. It bevel gear cutting machine tools produced in the highest rate since the tool complex, expensive, and each piece requires a dedicated cutter, only together for a large number of mass produced. Machines generally come with automatic loading and unloading devices.

The development of modern gear machine finishing allowance and the resulting substantial reduction and quality improvement before grinding gear

The above-mentioned gear machining time is reduced, mainly due to new gear cutters, gear machine tools of modern development and the resulting significant reduction finishing allowance before Abrasive grinding wheel quality improvement. In addition, compared with the grinding machine, modern CNC gear shaving machine is often times the price of half-power, high-precision gear available before Polycrystalline diamond level (up to DIN5-6 grade); And compared with the gear thread grinder grinding, machining cycles are more shorter. A gear for the automotive grinding wheel, especially those used in the automatic transmission pinion, we can shaving deformation caused by heat treatment after processing the control of a few micrometers; addition, through the tooth and the tooth to help compensate for distortion correction. Modern razor sharpening machines thrown.

When used without sharpening and renovations to improve the utilization of the diamond

A plurality of regularly arranged small particles of natural diamond sintered (sheet body) matrix, and fixed to the cutter body so that the curvature of wheel dressing; natural diamond layers with a single row, each row of ten or so generally small particles of natural diamond ; also be made ​​of a single row layer, each 3-7polycrystalline diamond. When used without abrasive grinding and renovations to improve the utilization of the diamond; product life than a single point of natural diamond pen much longer; also participate in multi-grain natural diamond dressing wheel dressing can ensure accuracy. Flake grinding wheel Article (device): is a precision molding trim molding wheel grinding wheel dressing tools for domestic and imported precision CNC grinding wheel trim molding. In a large grinding wheel can replace the use of general natural diamond shaped knife to trim wheel radians.

Abrasives mechanical strength mainly tensile, flexural, compressive strength and impact strength

Abrasives mechanical strength mainly tensile, flexural, compressive and impact strength. Since the high-speed rotary wheel to produce large centrifugal force, so that the internal tensile stress in the main. Thus, the level of the Diamond blade and the degree of Polycrystalline diamond be broken. Compared with the compressive and flexural strength, tensile strength are generally lower. Empirical data show that: Synthetic diamond flexural tensile strength is about 1/2 to 1/3. A compressive strength of 1/5 to 1/9. So abrasive tensile strength to meet its rotation resistance to stress generated when the request is the first condition of safe use of abrasive.

Speed, high efficiency, high precision grinding CBN grinding technology has become the mainstream of development

Speed, high efficiency, high precision grinding CBN grinding technology has become the mainstream of development. The use of ceramic CBN wheel speeds generally reach 80-120m / s ,150-200 m / s wheel cubic boron nitride entered the practical stage. Its manufacturing technology to become an important part of CBN grinding technology is directly related to the effects of grinding wheel as well as equipment and personal safety. Strength is the kind of grinding wheel manufacturing abrasive wheels first be concerned about one of the most important technical parameters.
Grinding wheel rotating at high speed, and the stress generated when the strength of their own studies using two key security. For speed 80 ~ 120m / s high-speed grinding wheel in terms of high-speed rotation when the overall strength is
Synthetic diamond important. Three parts should examine its strength: a base body, the adhesive layer and the abrasive layer. Their strength is generated when the high speed rotation is greater than the stress, the wheel will not break, the abrasive layer is not peeled off from the substrate.