Automobile synchronizer gear hub trislot machining process and tool thereof
A synchronizer and groove processing technology, applied in metal processing equipment, metal processing machinery parts, positioning devices, etc., can solve the problems of poor positioning accuracy, inability to meet product high quality, low cost requirements, and low processing efficiency, and achieve Improve economic benefits, reduce production costs, and ensure product quality
Inactive Publication Date: 2012-06-27
GANZHOU QUNXING MACHINERY
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Problems solved by technology
Generally, the traditional processing technology is to use ordinary horizontal milling to mill narrow slots and wide slots, ordinary vertical drills to drill small holes and large holes, and ordinary end mills to chamfer. There are five processes in total. Due to the need to process on multiple machine tools, There is the problem of multiple clamping, not only the positioning accuracy is poor, but also the processing efficiency is low, which cannot meet the high quality and low cost requirements of foreign companies
Method used
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[0012] Through independent design, the traditional five processes are combined into one process. Through special tooling (such as figure 2 As shown), the processing of the three grooves and holes of the gear hub is completed by one-time clamping on the Taiwan Youjia machining center (machine model VB610A).
[0013] When processing ZF6S500 first and second gear synchronizer gear hubs, use such as figure 2 In the shown tooling, the upper elastic expansion sleeve 7 is centered, and the angular positioning device 5 is used for angular positioning, and three positioning blocks 6 are used for axial positioning. After the gear hub 9 is positioned, the elastic expansion sleeve is tightened by the pull rod 8 7 Clamp the gear hub 9, the elastic expansion sleeve 7 and the pull rod 8 are connected to the T-slot workbench of the machining center through the base 10; during cutting, the steps are as follows: first step, use a milling cutter to cut one part of the gear hub After the wide...
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The invention relates to an automobile synchronizer gear hub trislot machining process and a tool thereof. By the adoption of the machining process and the tool, milling a wide slot and a narrow slot, drilling a big stepped hole and a small stepped hole and milling cast iron (CI) chamfers of two sides of a trislot are achieved by clamping at one time. A bottom seat of the tool is respectively provided with an elastic expansion sleeve for centering a gear hub, an angular locating device for angular locating and three locating blocks for axial locating. The elastic expansion sleeve and a pull rod are connected with a T-type groove workbench of a machining center through the bottom seat. Due to the fact that machining of the sliding block grooves at three positions and the stepped holes is achieved by clamping the gear hub on an identical machine tool at one time, on general conditions, machining of a single synchronizer gear hub trislot can be achieved within five minutes, and production efficiency is improved by more than ten times.
Description
technical field [0001] The invention relates to the improvement of the processing technology and tooling of the gear hub of the automobile synchronizer, in particular to the processing technology and the tooling of the three-groove processing of the gear hub of the automobile synchronizer. Background technique [0002] The outer spline of the automobile synchronizer gear hub has a complex structure and high processing requirements, such as the 6S500 synchronizer gear hub developed by the German ZF company, see figure 1 As shown in the gear hub diagram, the structure is two stepped grooves with different groove widths. There are two stepped holes with different diameters at the bottom of the grooves. The bottom of the grooves also requires a C1 chamfer. The three grooves are aligned with the inner spline holes of the gear hub. The position of the involute profile of the center and outer teeth is required to be within 0.1mm, and the symmetry of the hole is required to be withi...
Claims
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Login to View More IPC IPC(8): B23P15/14B23Q3/06
Inventor 徐克忠谢小辉朱文洋赖人评徐双进钟福东
Owner GANZHOU QUNXING MACHINERY