The invention discloses an in-shaft spline and outer circle coaxiality machining and positioning device and a process method According to a traditional method, the outer circles of workpieces are clamped through a chuck, and then the end faces are pressed; due to the fact that the sizes of the outer circles and the axial lengths of the workpieces are different, some workpieces can not be directly clamped and can not be positioned until multiple gaskets are arranged at appropriate positions, positioning standards and alignment standards of the workpieces can not be unified, the tool rigidity is influenced when the axial sizes are large, and the machining accuracy is low The in-shaft spline and outer circle coaxiality machining and positioning device is composed of a jig body and a gasket Four U-shaped grooves which are evenly distributed are formed in the bottom of the jig body The jig body is fixed to a working table when T-shaped bolts penetrate the U-shaped grooves Four T-shaped grooves which are evenly distributed are formed in the upper end of the jig body Workpieces are fixed when T-shaped bolts penetrate the T-shaped grooves The gasket is placed on the jig body, and it must be ensured that two planes are parallel The workpieces are placed on the gasket The gasket is selected according to the workpiece positioning outer circle size According to the designed positioning device, the purpose of unifying the in-shaft spline and outer circle process standards is achieved, positioning is stable, and the machining accuracy is high

In-shaft spline and outer circle coaxiality machining and positioning device and process method

The invention relates to a method for processing a spline shaft with a tooth aligning requirement and the incomplete tooth number The method comprises the following steps of (1) the processing of a middle spline of the spline shaft: the spline shaft is installed, clamped and fixed on a tooth inserting machine, the middle spline is processed on the spline shaft, and in addition, wide teeth are set; (2) the processing of an end spline of one end of the spline shaft: the spline shaft is positioned, installed and clamped on the tooth inserting machine, the wide tooth positions of the middle spline shaft are fixed in specific positions by clamp teeth engaged with the middle spline, and the end spline is processed at the upper end of the spline shaft through tooth insertion, so that wide teeth of the end part spline are aligned with the wide teeth of the middle spline; (3) the processing of an end part spline of the other end of the spline shaft: one end, provided with the end spline, of the spline shaft is downward, the spline shaft is positioned, installed and clamped on the tooth inserting machine, the positions of the wide teeth of the middle part are fixed in the same positions in the second step through the clamp teeth engaged with the middle part spline shaft, the end part spline is processed at the upper end of the spline shaft through tooth insertion by the tooth inserting machine, and the wide teeth of the end part spline are aligned with the wide teeth of the middle part spline

Method for processing spline shaft with tooth aligning requirement and incomplete tooth number

The invention discloses an air floating gear shaping fixture and a gear shaping machine. The air floating gear shaping fixture comprises an air floating assembly, a rigid gear supporting structure anda clamping mechanism, wherein the air floating assembly is provided with a positioning inner hole, multiple air outlet holes are formed in the inner wall of the positioning inner hole and distributedin the circumferential direction of the positioning inner hole; the rigid gear supporting structure is used for limiting the axial position of a rigid gear in the positioning inner hole; and the clamping mechanism is used for clamping the rigid gear in the positioning inner hole to the rigid gear supporting structure. When the clamping mechanism is in a loosening state, the rigid gear is placed in the positioning inner hole of the air floating assembly, compressed air is sprayed out from the air outlet holes, the rigid gear floats and is centered, and then the rigid gear is clamped by the clamping mechanism. According to the technical scheme, with adoption of air floating centering, the centering speed is high, accuracy is high, and labor intensity of workers is greatly reduced. The air floating gear shaping fixture further has a self-cleaning function, that is, after one rigid gear is machined, the rigid gear is taken out, then air of the air floating can be opened, iron scraps remaining on the air floating assembly and the rigid gear supporting structure can be blown out, and the clamping accuracy of the next rigid gear is guaranteed accordingly.

Air floating gear shaping fixture and gear shaping machine

The invention discloses a gear shaping clamp for machining a shaft internal spline. The external locating problem is solved. According to the technical scheme, a tire base (1) of the gear shaping clamp special for machining the shaft internal spline is connected with a machine tool workbench through a T-type bolt (12); locating gaskets (10) are fixed to the tire base (1) through internal hexagonal cylindrical head screws II (9), locating sleeves (5) are arranged outside the locating gaskets (10) in a sleeved mode and are fixed to the tire base (1) through internal hexagonal cylindrical head screws I (3), and two supporting columns (2) and two double-end bolts (4) are fixed to the tire base (1); two hook pressing plates (6) are arranged on the upper portions of the double-end bolts (4) in a sleeved mode; springs (7) are arranged on the lower portions of the hook pressing plates (6) on the double-end bolts (4) in a sleeved mode; guide grooves are formed in the hook pressing plates (6), and the supporting columns (2) are sleeved with the guide grooves of the hook pressing plates (6); the double-end bolts (4) penetrate through kidney-shaped holes in the hook pressing plates (6), and the hook pressing plates (6) can move front and back. The gear shaping clamp has the advantages that the structure is simple, a workpiece is convenient and fast to replace, machining precision is high, and efficiency is high.

Liu Huifang

Papers

Gear shaping clamp for machining shaft internal spline