Gear shaping

About: Gear shaping is a research topic. Over the lifetime, 598 publications have been published within this topic receiving 1880 citations.

Novel numerical control gear shaping machine demonstration instrument

Abstract: The utility model provides a novel numerical control gear shaping machine demonstration instrument which comprises a frame, a gear printing mechanism and a horizontal feeding mechanism. Through the joint action of the horizontal feeding motion of upper ground paper of the horizontal feeding mechanism, the generating motion of a gear shaping cutter and ground paper and vertical motion of the gear shaping cutter in the gear printing mechanism, the demonstration instrument completes demonstration. According to the utility model, the parameter of a PC end can be changed; the center distance between two shafts, the number of drawn gears, the drawing speed and the like are changed; a standard gear and a deflection gear can be drawn, and similarities and differences of two gears are compared; an undercut phenomenon is demonstrated; the novel numerical control gear shaping machine demonstration instrument has the advantages of reasonable mechanism layout, small overall volume and being safe and reliable, and is suitable for carrying out demonstration for students in an experimental class.

Fabrication method of straight bevel gear shaping processing template

Abstract: The invention provides a fabrication method of a straight bevel gear shaping processing template, and relates to improvement of a fabrication method of a straight bevel gear shaping processing template. The supporting template obtained by the fabrication method can meet different gear parameter requirements and has small gear shaping errors. The fabrication method comprises the following steps: calculating a horizontal coordinate and a longitudinal coordinate of a curve of a template for double-tool gear tooth surface machining according to formulas as follows: Xi=xi+etaixR and Yi=yi+etaiyR, or calculating a horizontal coordinate and a longitudinal coordinate of a curve of a template for single-tool upper-lower gear tooth surface machining according to formulas as follows: Xi=xi+etaixR, Yi=yi+etaiyR, Xi*=Xi-etaixR and Yi*=-yi+etaiyR; and making cross sections of the curve of the template to process a curve according to coordinate points Xi and Yi or coordinate points Xi, Yi, Xi* and Yi*.

Gear-shaping and rivet-turning combination anti-rotate locking unit assembly

Abstract: The utility model discloses a gear-shaping and rivet-turning combination anti-rotate locking unit assembly. The nut assembly enables a nut (1) to be fixed on a support (2) through coaction of shaping of a gear and turning of a rivet to prevent the nut (1) from rotating on the support (2). The nut assembly is capable of preventing the self-locking nut (1) from revolving easily through adoption of the gear-shaping and rivet-turning structure, enabling the maximum launch torque of the nut (1) to reach more than 100 N after shaping of a gear and turning of a rivet to enable the nut (1) and the support (2) to be fixedly connected during use, achieving installation of the nut (1) and the support (2) with high strength, increasing reliability of fastening and connection, enabling the nut (1) hardly to be pushed out of the support (2) even under the condition of bearing large outer force. The gear-shaping and rivet-turning combination anti-rotate locking unit assembly is convenient to use, not prone to loosing during use, reliable in connection, simple in structure, good in processing, capable of simplifying devices, fast to install, interchangeable and worthy of popularization.

Large-ring-gear externally-expanded type efficient gear shaping clamp

Abstract: The invention discloses a large-ring-gear externally-expanded type efficient gear shaping clamp which comprises a base and a body arranged on the base. A connection disk, an expansion sleeve and a support are sequentially arranged on the inner side of the body from bottom to top. The base is fixedly connected with a machine tool table. Compared with a three-jaw chuck and manual clamping, the large-ring-gear externally-expanded type efficient gear shaping clamp is constant in clamping force, the clamping process is stable and reliable, and parts are not prone to deforming; the large-ring-gear externally-expanded type efficient gear shaping clamp is suitable for gear shaping machines of various specifications by replacing the base and a connection rod, and the large-ring-gear externally-expanded type efficient gear shaping clamp is suitable for parts of different size series by replacing the expansion sleeve and the support. The support can be designed of a petal type toothed structure and is paired with a chute arranged on the body, the chip removing speed is increased, and accumulated scrap iron is effectively prevented from affecting machining. The clamp is relatively simple in whole structure and convenient to manufacture, and an adjustment space is reserved for insufficient manufacturing and assembling precision. The clamp can be arranged as a whole or parts of the clamp are sequentially arranged, and the parts can be conveniently detected and replaced.

Gear shaping clamp for flange of transmission

Abstract: The invention belongs to the field of workpiece clamping devices, and particularly relates to a gear shaping clamp for a flange of a transmission. The gear shaping clamp comprises a positioning disc,and further comprises a clamping device; a positioning spigot is formed in the positioning disc; the clamping device comprises pressing blocks and two fixing rods, wherein the pressing blocks are arranged on the positioning disk in a sliding mode; transverse channels and vertical channels are formed in the pressing blocks; transverse wedge rods are arranged in the transverse channels in a slidingmode and are connected to the inner walls of the pressing blocks through springs; the ends, close to the positioning spigot, of the transverse wedge rods extend out of the pressing blocks; the vertical channels communicate with the outside; vertical wedge rods are arranged in the vertical channels in a sliding mode and abut against the transverse wedge rods; sliding grooves allowing the two fixingrods to slide are formed in the positioning disc; connecting rods are hinged to the middles of the two fixing rods; the free ends of the two connecting rods are hinged; and the vertical wedge rods are used for pushing the hinged joint of the two connecting rods to move. According to the gear shaping clamp, the problem that the flange of the transmission can rotate along with a hobbing device in the gear hobbing machining process can be solved, and the gear shaping clamp is commonly used for fixing the flange plate in the machining process.