Method for processing three-row sprocket tooth form of marine engine
A technology for marine diesel engines and processing methods, which is applied to belts/chains/gears, mechanical equipment, transmission devices, etc., and can solve problems such as increased costs, high costs, and inability to use them for other purposes
Inactive Publication Date: 2010-09-01
宁波远达船机配件有限公司
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Problems solved by technology
[0002] At present, factories generally use gear hobbing machine tools to process the three-row sprocket tooth profile of marine diesel engines. Although the processing quality of the three-row sprocket tooth profile can be guaranteed, the disadvantages of the above processing methods are: 1. Tooth cutters require form cutters, which are expensive
2. The gear hobbing machine has a single function. When gear hobbing is not required, it cannot be used for other purposes, which increases the cost of the factory.
3. Low production efficiency
Method used
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] The processing method of the three-row sprocket tooth profile of the marine diesel engine of the present invention uses a numerical control gantry milling machine to process, and its processing steps are:
[0016] (1) Use equal height shims to pad the marked surface of the part, and then straighten the cross center line, which is used as the X axis and Y axis in the CNC gantry milling machine program, and then use the inner hole of the part to find Correct the center zero point of the part, recheck the center zero point through the outer circular surface of the part, and then use a conventional end mill to rough and finish mill the tooth profile of the first row of sprocket 1;
[0017] (2) After completing the processing of the tooth shape of the first row of sprocket 1, the cutting edge is shorter than the cutting edge of the convention...
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The invention discloses a method for processing three-row sprocket tooth form of a marine engine, which can ensure the processing quality of the three-row sprocket tooth form and has low production cost and high production efficiency. The method uses a numerical control plano milling machine for processing and comprises the processing steps: (1) the tooth form of a first row of sprockets is processed by crude and fine milling by a conventional slotting cutter; (2) a cutting edge which is shorter than that of the conventional slotting cutter in the previous step and a slotting cutter having a cutter body part that is provided with the cutting edge and takes on a round platform shape being larger at the bottom and smaller on the top are used for layered cut processing of crude and fine milling for the tooth form of a second row of sprockets; (3) a third row of sprockets are pre-bored with calibration holes; (4) the third row of sprockets are upturned with the upper end surface being leveled, and then a cross centre line of the parts is accurately aligned by using the calibration holes; a center zero is aligned by using the centers of the inner holes of the parts, and the tooth form of the third row of sprockets is processed by crude and fine milling by the conventional slotting cutter.
Description
technical field [0001] The invention relates to the technical field of cutting processing of mechanical parts, in particular to a processing method for a three-row sprocket tooth profile of a marine diesel engine. Background technique [0002] At present, factories generally use gear hobbing machine tools to process the three-row sprocket tooth profile of marine diesel engines. Although the processing quality of the three-row sprocket tooth profile can be guaranteed, the disadvantages of the above processing methods are: 1. Toothed cutters require form cutters, which are expensive. 2. The gear hobbing machine has a single function. When gear hobbing is not needed, it cannot be used for other purposes, which increases the cost of the factory. 3. Low production efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above shortcomings of the prior art and provide a three-row sprocket for marine diesel en...
Claims
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IPC IPC(8): B23P15/14F16H7/06
Inventor 刘海军邵国成
Owner 宁波远达船机配件有限公司