Machining method for gear case
A processing method and gear box technology, applied in the direction of components with teeth, transmission boxes, etc., can solve the problems of low precision boring bearing holes, inconsistent process benchmarks, low precision boring bearing holes, etc., and reduce alignment. The time and process benchmarks are consistent, and the effect of high accuracy of alignment
Active Publication Date: 2017-11-24
CRRC QISHUYAN INSTITUTE CO LTD
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Problems solved by technology
The alignment of the existing fine-boring bearing holes of gearboxes is mainly completed by aligning and marking. The alignment time caused by the inconvenience of the operator is long, the efficiency of the fine-boring bearing holes is low, and the fine-milled box surface and fine-boring bearings will be produced. The benchmarks of the hole process are inconsistent, and the accuracy of fine boring bearing hole alignment is low
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and given embodiments.
[0030] Such as Figure 1 to Figure 9 Shown, a kind of processing method of gear box, described gear box is formed by connecting upper box body 1 and lower box body 2, and concrete processing method comprises the following steps:
[0031] a. Blank forming;
[0032] b. Scribing: scribing the processing line of the box surface 5, the large bearing hole 3 and the small bearing hole 4;
[0033] c. Rough milling: X2080 horizontal milling machine or X63WG horizontal milling machine is used to roughly machine the combined box surface 5;
[0034] d. Rough boring: use TX6111D digital display boring and milling machine or TX6113D digital display boring and milling machine to roughly process large bearing hole 3 and small bearing hole 4;
[0035] e. Fine milling: FH8800 horizontal machining center or a81NX horizontal machining center is used to finely mill...
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A machining method for a gear case comprises the following steps of blank forming, scribing, rough milling, rough boring and lower case body finish milling. A straight line AB in parallel with a case closing surface is scribed on an upper case body; the coordinate of the upper case body in the X direction is determined on the basis of the vertical center line of a large bearing hole of the upper case body, the coordinate of the upper case body in the Y direction is determined on the basis of the straight line AB, the coordinate of the upper case body in the Z direction is determined on the basis of the horizontal center line EF, and the case closing surface of the upper case body is subjected to finish milling; a first datum notch and a second datum notch are milled; and the upper case body and a lower case body are connected together, the vertical surface of the first datum notch is slightly touched through a 3D edge finder to determine the coordinate of the upper case body in the X direction, the horizontal surface of the second datum notch is slightly touched through the 3D edge finder to determine the coordinate of the upper case body in the Z direction, the case closing surface is slightly touched through the 3D edge finder to determine the coordinate of the upper case body in the Y direction, and the large bearing hole and a small bearing hole are subjected to finish milling. According to the machining method for the gear case, during finish milling of the bearing holes, the efficiency is high, and the bearing hole finish milling leveling procession is high.
Description
technical field [0001] The invention relates to a processing method of a gear box. Background technique [0002] The workpiece must be aligned before fine boring the bearing hole of the gearbox to ensure that the XYZ axes of the workpiece coordinate system are parallel to the XYZ axes of the machine tool coordinate system. The alignment of the existing fine-boring bearing holes of gearboxes is mainly completed by aligning and marking. The alignment time caused by the inconvenience of the operator is long, the efficiency of the fine-boring bearing holes is low, and the fine-milled box surface and fine-boring bearings will be produced. The benchmarks of the hole process are inconsistent, and the accuracy of fine boring bearing hole alignment is low. Contents of the invention [0003] The object of the present invention is to provide a gear box processing method with high efficiency in fine boring of bearing holes and high precision of alignment of the fine boring bearing ho...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00F16H57/02
Inventor 石琦霞刘升
Owner CRRC QISHUYAN INSTITUTE CO LTD