JPH0375347U

JPH0375347U -

Info

Publication number: JPH0375347U
Application number: JP13654989U
Authority: JP
Priority date: 1989-11-24
Filing date: 1989-11-24
Publication date: 1991-07-29

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す斜視図、第２
図は第１図に示す回転ナツトの構造を示す部分断
面図、第３図は従来の一例を示す斜視図である。２，３，１２，３２，５０……ボールネジ、４
，５，１１，３１……ガイドレール、６，７，８
，９……軸受、２０，２１，４０，４１……回転
ナツト、１０，３０……Ｘ可動部、１４，３４…
…Ｙ可動部、１３，３３，２６，４６……サーボ
モータ、２７，４７……伝達機構、ａ，ｂ，ｃ，
ｄ，ｅ，ｆ，ｇ……かさ歯車。 Fig. 1 is a perspective view showing one embodiment of the present invention;
This figure is a partial cross-sectional view showing the structure of the rotating nut shown in FIG. 1, and FIG. 3 is a perspective view showing an example of the conventional structure. 2, 3, 12, 32, 50...Ball screw, 4
, 5, 11, 31... Guide rail, 6, 7, 8
, 9... Bearing, 20, 21, 40, 41... Rotating nut, 10, 30... X moving part, 14, 34...
...Y movable part, 13, 33, 26, 46... Servo motor, 27, 47... Transmission mechanism, a, b, c,
d, e, f, g... bevel gear.

Claims

[Scope of utility model registration request]

a base; a pair of guide rails fixed to the base in the X direction; a pair of ball screws fixed at both ends to the base and provided parallel to the guide rails; first and second X-movable parts each having a rotating nut provided with a bevel gear that is screwed onto a pair of ball screws and whose rotation center coincides with the axis of the ball screw; and fixed to the first X-movable part. a first servo motor and a bevel gear that is freely pivoted for forward and reverse rotation in the first X movable part and meshes with a bevel gear provided on a rotating nut of the first X movable part; and a first servo motor connected to the other ends of the first and second drive shafts and transmitting the forward and reverse rotations of the first servo motor in the same phase and in the same direction, respectively. The first part consists of a transmission mechanism.
a drive unit, a second servo motor fixed to the second X movable unit, and a second servo motor fixed to the second X movable unit, and the second X movable unit is freely pivoted for forward and reverse rotation; third and fourth drive shafts each having a bevel gear at one end that meshes with a bevel gear provided on the nut; and a third and fourth drive shaft connected to the other end of each of the third and fourth drive shafts and connected to the second servo motor. a second drive section consisting of a second transmission mechanism that transmits forward and reverse rotations in the same phase and direction, and a second drive section that is guided by a second guide rail fixed to the first X movable section in the Y direction; a first Y drive section that is threadedly engaged with a second ball screw that is provided in parallel with the second guide rail and is rotationally driven in forward and reverse directions by a third servo motor that is fixed to the first X movable section; a third fixed to the second X movable part in the Y direction;
The ball screw is guided by a guide rail, is provided parallel to the third guide rail, and is threadedly engaged with a third ball screw driven to rotate in forward and reverse directions by a fourth servo motor fixed to the second X movable part. A two-head XY moving device, characterized in that it includes a second Y drive section.