A processing technology of herringbone helical tooth keyway
A processing technology and keyway technology, which is applied in the field of herringbone helical tooth keyway processing technology, can solve the problems of indetermination, no specific instructions for the alignment position, difficult processing, etc., achieve high precision, improve reliability and stability, and operate simple effect
Active Publication Date: 2018-02-02
SHANGHAI ZHENHUA HEAVY IND GRP NANTONG TRANSMISSION MACHINERY
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Problems solved by technology
[0002] When processing herringbone helical gears, because the gear teeth have a certain inclination, it is necessary to set a reference when processing the internal keyway of the gear, so as to process more accurately. The machining center has a reference correction function, but when processing , there is no specific instruction for its alignment position, and its accuracy cannot be judged, which causes certain difficulties for processing
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[0012] Herringbone helical gears are often used in hoisting gearboxes. The production process is generally divided into steps such as welding gears, stress relief and tempering, ultrasonic flaw detection, rough turning, gear hobbing, marking centering, keyway milling, and magnetic particle flaw detection. In the keyway milling step, due to the particularity of the herringbone helical teeth, it is difficult to determine the keyway reference line, such as figure 1 As shown, the present invention discloses a herringbone helical tooth keyway processing technology, comprising the following steps:
[0013] (5) Find the gear centerline 2: take the side close to the tooth step of the gear shaft as the positioning reference plane 5, use a probe on the machining center to find the intersection point 4 of the tooth groove centerline 1 and the tooth width centerline, and use the intersection Point 4 determines the gear centerline 2;
[0014] (1) Retest: if figure 2 As shown, the center...
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The invention relates to a machining process for a herringbone oblique tooth key groove. The machining process comprises the following steps that a gear center line is found out, specifically, the side which is close to a gear shaft tooth part step serves a positioning datum surface, and the intersection point of a tooth groove center line and a tooth width center line as well as the gear center line are found out on a machining center through a probe; repeated measurement is conducted, specifically, the machining center clamps a centering tool which is provided with a detection probe stretching into a tooth groove, the detection probe is placed on the detected intersection point, the distances of the two sides of the detection probe to a tooth wall are detected, and if the distances of the two sides of the detection probe to the tooth wall are consistent, the situation that the detected position is correct can be determined; a key groove datum center line is milled, specifically, clockwise biasing by a certain angle is conducted on the gear center line with the positioning datum surface being a reference surface, so that a key groove datum line is obtained; and the key groove is milled, specifically, the key groove datum line is aligned, and the key groove is milled. The machining process for the herringbone oblique tooth key groove has the advantages that the position which cannot be indicated by the machining center is shown through the centering tool, operation is easy, the precision is high, and the production reliability and stability are greatly improved.
Description
technical field [0001] The invention relates to the field of mechanical processing, in particular to a process for processing a herringbone helical tooth keyway. Background technique [0002] When processing herringbone helical gears, because the gear teeth have a certain inclination, it is necessary to set a reference when processing the internal keyway of the gear, so as to process more accurately. The machining center has a reference correction function, but when processing , there is no specific instruction for its alignment position, and its accuracy cannot be judged, which causes certain difficulties for processing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a herringbone helical tooth keyway processing technology. [0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a kind of herringbone helical tooth keyway processing technology, and ...
Claims
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IPC IPC(8): B23C3/30B23C9/00
CPCB23C3/30B23C9/00B23C2220/36B23C2235/48
Inventor 张洋戴立新奚宪
Owner SHANGHAI ZHENHUA HEAVY IND GRP NANTONG TRANSMISSION MACHINERY