Gear shaping

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

Computer aided stress and deflection analysis of Fellow's gear-shaping cutter, for different cutting process parameters

Abstract: Achieving maximum efficiency (in terms of quantity of products produced in a stipulated time) with improved accuracy and surface finish through a chatter-free high-speed cutting process are problems of the modern gear cutting industry. Modern techniques employ a generating type of cutter such as Fellow's gear-shaping cutter for the production of high-speed noiseless and accurate gears. The literature review indicates that experimental and theoretical methods had been predominantly in use in the design of gear cutting tools as compared to the computer aided methods. In this research the gear-shaping cutter is modelled using three-dimensional ten-node tetrahedral finite elements. The research is carried out at the instant when the gear-shaping cutter plunges on the workpiece and the cutting forces during the generation process become maximum. The maximum three-dimensional displacements and stress values are generated under different cutting conditions. The effects of different cutting process parameters (speed, feed and depth of cut) on the maximum stress and deflection are studied in detail.

Novel gear shaping machine

Abstract: The utility model belongs to the technical field of gear production, especially, relate to a novel gear shaping machine, including workstation, one -level bracing piece, one -level pinion cutter fixedestablishment, second grade pinion cutter fixed establishment, the one -level bracing piece sets up in the left end at workstation top, one -level pinion cutter fixed establishment and second grade pinion cutter fixed establishment all set up in the top of workstation, one -level pinion cutter fixed establishment sets up in second grade pinion cutter fixed establishment's left side, the top of one -level bracing piece is equipped with the second grade bracing piece, be equipped with the one -level through -hole on the workstation, be equipped with the fender hopper on the workstation of one -level through -hole periphery, be equipped with gear clamping device in the one -level through -hole, the below of one -level through -hole is equipped with stores up the bits bucket, and this novel gear shaping machine not only can adopt two pinion cutters while counter gear embryo spares to process, has improved production efficiency, also can adopt a pinion cutter counter gear embryo spare to process simultaneously, can change according to user's needs, and application scope is wide.

Making technology for transmission double-end internal-teeth ring of electric forklift

Abstract: The invention discloses a making technology for a transmission double-end internal-teeth ring of an electric forklift. The making technology comprises the following steps: 1, performing warm forging and plastic molding: 2, spheroidizing annealing; 3, performing blank making, shot blasting and saponifying; 4, performing cold-extruding on internal teeth of a central hole; 5, machining; 6, performing salt bath tufftriding. A product prepared by the technology is stable in quality, small in accumulated errors among the teeth, high in yield, and short in production cycle; the production efficiency is improved; the problem that a traditional transmission gear shaping is large in lathe equipment investment of multiple, low in production efficiency, high in manufacture cost and difficult to realize massive production, is solved, and the defects that the quality of the product is unstable and the rejection rate of the product is high which are caused by the fact that two gear rings are formed by welding and the generated deformation is large, are overcome.

Gear milling clamp of thin wall member

Abstract: The utility model relates to a gear milling clamp of a thin wall member. The gear milling clamp comprises a pedestal and a gear milling mandrel, and is characterized in that a double-end bolt is arranged on the pedestal, a spring and a pressure plate are arranged on the double-end bolt which is fixed on the pedestal through a hexagonal nut, the pressure plate comprises a pressure head, a connecting back with an adjusting screw and a support column, a positioning cylinder and an opening gasket are arranged on the gear milling mandrel, the positioning cylinder comprises a positioning end and a cylindrical shell, the external diameter of the positioning end is 8-12mm larger than the external diameter of the cylindrical shell, the external diameter of the positioning end is 0.04-0.1mm smaller than the internal diameter of the thin-wall outer spline of a part, and the gear milling mandrel is secured on the pedestal through an inner hexagonal screw. The gear milling clamp is simple in structure, easy for manufacture and convenient for mounting and dismounting parts. The thin wall outer spline end of a part is positioned in an auxiliary manner through the positioning cylinder, and the thin wall outer spline end of the part may not swing when the gear shaping machine shapes gears. Shaping gears are high in precision and stable in quality, and the qualified rate and the processing efficiency of shaping gears of the thin-wall outer spline of parts are improved. The production cost is reduced.

Apparatus for forming internal teeth at large workpieces at a gear shaper

Abstract: An apparatus for forming internal gear teeth at large workpieces at a gear shaper or gear shaping machine comprising a machine bed at which there are arranged a workpiece table for chucking a workpiece and an upright or stand. The workpiece table and the stand are rotatable, relative to one another, about the workpiece axis and radially feedable relative thereto. The stand has guide means along which there can be moved to-and-fro a plunger by means of a plunger drive. An auxiliary stand is rotatably and radially displaceable about the workpiece axis upon a bearing rim which is coaxially attached at the workpiece. The auxiliary stand has a guide arrangement along which there can be moved to-and-fro, in the tooth lengthwise direction of the internal teeth, an auxiliary plunger driven by the plunger by means of a bridge arrangement.