Transmission mechanism of helical hole milling device
A technology of transmission mechanism and helical milling hole, which is applied in the field of hole making, can solve the problems of complex transmission mechanism and high cost, and achieve the effect of simple mechanism, low cost and guaranteed stability
Active Publication Date: 2020-08-04
DALIAN UNIV OF TECH
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Problems solved by technology
[0003] According to the above-mentioned technical problems, a transmission mechanism of a helical milling device is provided. The present invention overcomes the relatively poor transmission mechanism of the helical milling device in the prior art through a structural design in which the axis of the transmission shaft is concentric with the axis of the outer cylindrical surface of the outer sleeve. complex, costly problems
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[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] Such as figure 1 As shown, the embodiment of the present invention discloses a transmission mechanism of a helical milling device, including a cutter 1, an output shaft 2, and an outer sleeve 3. The cutter 1 is connected to the output side of the output shaft 2, and the output shaft 2 Replaceably set on the output section of the outer...
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The invention provides a transmission mechanism of a helical hole milling device. The transmission mechanism comprises a tool, an output shaft and an outer sleeve; the output shaft is sleeved with anoutput section of the outer sleeve in a replaceable manner; the output shaft and the output section of the outer sleeve both have preset eccentric magnitude; the transmission mechanism further comprises a motor, a transmission shaft and a universal joint coupling; an output end of the motor is connected with an input end of the transmission shaft; an output end of the transmission shaft is connected with an input end of the output shaft through the universal joint coupling; and the center distance between the motor and the axis of the transmission shaft remains constant. The transmission mechanism can overcome the shortcomings of traditional hole forming devices, and realizes power transmission between a main shaft and the transmission shaft which have a certain eccentric distance; due tothe structural design that the axis of the transmission shaft and the axis of an outer cylindrical surface of the outer sleeve are concentric, the center distance between the motor and the axis of thetransmission shaft is constant, and power input during revolution of the tool is realized; and the transmission mechanism is simple in structure and relatively low in cost, and can guarantee the stability of rotating speed and torque transmission.
Description
technical field [0001] The invention relates to the technical field of hole making in assembly of aerospace vehicles, in particular to a transmission mechanism of a helical hole milling device. Background technique [0002] Helical milling is a new technology in the aviation manufacturing industry. Its principle is to use a special end mill. The tool itself revolves around the axis of the hole to be machined while rotating at high speed, and feeds in the direction of the axis of the hole to be machined. Finally, a milling hole is milled on the workpiece. The machining method of a circular hole with a diameter larger than the tool itself is called a helical milling hole because the tool feed trajectory is helical. For the hole making of new materials such as composite materials and titanium alloys, because the axial cutting force of helical milling holes is smaller than that of drilling holes, it is superior to traditional drilling. Helical milling holes are applied to aircra...
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IPC IPC(8): B23C3/00B23C9/00B23Q5/34
CPCB23C3/00B23C9/00B23Q5/34
Inventor 董志刚康仁科杨国林郭东明
Owner DALIAN UNIV OF TECH