Flexible shaft coupling

Abstract

The invention provides a flexible shaft coupling capable of suppressing excessive displacement between the first elastic board and the second elastic board in order to prevent injury, and maintaining high rotation transmission accuracy in the long term. The shaft coupling comprises a pair of first elastic boards (7) positioned between a first connection member (4) and an isolation member (6), a pair of second elastic boards (8) positioned between the isolation member (6) and a second connection member (5) and extending in a direction forming a right angle with the first elastic boards (7), a first connection member (4) connected to the driving shaft (2), and a second connection member (5) connected to the driven shaft (3), wherein the through-holes (11, 16, 17) are formed on the first connection member (4), the isolation member (6) and the second connection member (5) along the direction of the axis of the driving shaft (2). A limitation rod (9) is provided for limiting the elastic deformation of the first elastic board (7) and the second elastic board (8) within the determined deformation amount, and is inserted into through-holes with intervals reserved.

Description

Technical field [0001] The present invention involves an deflection of a shaft for connecting the driver shaft and the axis. Background technique [0002] As an existing deflection coupling, the deflection coupling in the patent literature 1 is known. The deflection couplet is set between the drive shaft of the machine tool and the connection processing tools, Make the relative drive shaft of the axis of the axle, so as to adjust the position of the processing tool relative to the workpiece. [0003] like image 3 Show, the flexible couplet in Patent Literature 1 is set on the cutting machining device 33.The driving shaft 34 of the deflection coupling shaft 30 connection 镗 cutting machining device 33 and the axle 36 with a processing tool 35.like image 3 and Figure 4 Show, the deflection couplet 30 has: the first connection component 37 connected to the driver shaft 34; the second connection component 38 connected from the axle 36, the second connection component 38 to the drivin...

AI Technical Summary

Problems solved by technology

[0007] However, as described above, when the processing tool 35 is lowered in its axial direction during processing, by providing the restricting portion realized by the above-mentioned support holes 43, 44 , easy to perform high-precision machining, but for example, when performing tool replacement in numerical control machining (NC machining), etc., in the case of frequently moving the machining tool in a direction intersecting its axis, the flexible coupling The first elastic plate 40 and the second elastic plate 41 of 30 produce excessive elastic deformation in the X-Y direction on the plane at right angles to the axis of rotation of the flexible coupling 30. According to the situation, the first elastic plate 40 and the second elastic Damage such as cracks may occur on the plate 41, and high rotation transmission accuracy may not be maintained

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