JP2785767B2 - Numerical control cutting device for glass plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a numerically controlled cutting device for a glass sheet.

[0002]

In a conventional glass sheet cutting apparatus, a screw shaft is connected via a nut to a moving table on which a cutter head is mounted, and this screw shaft is connected to an output rotary shaft of an electric motor by a pulley. , Connected via a belt or the like, the screw shaft is rotated by rotation of the output shaft of the electric motor to move the movable table in, for example, the X direction, and the screw shaft is connected to the bed on which the glass plate is mounted via a nut. Then, the screw shaft is connected to the output rotation shaft of the electric motor via a pulley, a belt, or the like, and the rotation of the output shaft of the electric motor rotates the screw shaft to move the bed, for example, in the Y direction. Is relatively moved along the shape to be cut with respect to the glass plate.

In the conventional glass sheet cutting apparatus as described above, since a relatively long screw shaft is rotated, a large bending vibration is easily generated in the screw shaft in a critical speed range. It is difficult to improve the work efficiency by rotating the moving table and the bed at a high speed by rotating the moving table at a high speed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and an object thereof is to move a cutter head relative to a glass plate at high speed and accurately along a shape to be cut. Accordingly, it is an object of the present invention to provide a numerically controlled cutting apparatus for a glass sheet capable of improving work efficiency and obtaining a high-quality processed product.

[0005]

According to the present invention, the object is to move a bridge frame movable in the Y direction directly in the Y direction.
Y-direction linear motion means for moving the bridge frame
The cutter head is provided to be movable in the direction
An X-direction linear moving means for linearly moving the head is provided.
Attach a ball screw nut to the linear motion means so that it can rotate freely.
Screw into the ball screw nut of
The ball screw is extended in the direction
The cutter head in the X direction by rotating the
Achieved by a numerically controlled cutting device for moving a glass sheet.

According to the present invention, the above object is achieved by providing a cutter head movably in the X direction on a bridge frame.
X-direction linear moving means for linearly moving the cutter head is provided.
The ball screw nut is rotatable to the X-direction linear moving means.
Attach the bridge to this ball screw nut
The ball screw is provided extending on the frame in the X direction, a numerical control cutting apparatus in the X direction sleep by ribonucleic Lumpur linear means Shi rotates the nut glass plate so as to linear motion of the cutter head in the X direction Is also achieved by

[0007]

In the numerically controlled glass sheet cutting apparatus of the present invention, the bridge frame is moved to the Y-direction by the operation of the Y-direction linear moving means.
While moving in the X direction,
By rotating the nut, the cutter head
Directly in the X direction along the ball screw on the ridge frame
Be moved. Thus, the cutter head is moved at high speed along the shape of the glass plate to be cut in the XY plane.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail based on preferred embodiments shown in the drawings. The present invention is not limited to these embodiments.

[0010]

EXAMPLES In Figure, numerical control cutting apparatus 1 of the glass plate of the present embodiment, the bridge frame 4 having a X-direction linear movement means 3 for linear motion of the cutter head 2 in the X Direction sides 5 and 6
And movably supported in the Y direction. Ball screw nuts 7 and 8 are rotatably mounted on both sides 5 and 6 of the bridge frame 4, respectively, and a pair of ball screws 9 extending in the Y direction.
Each of the ball screw nuts 7 and 8 is screwed into each of the nuts and 10, and a Y-direction linear motion means 11 is provided for rotating the two ball screw nuts 7 and 8 synchronously to linearly move the bridge frame 4 in the Y direction. In addition, X
Another ball screw 12 extending in the direction is arranged, and another ball screw nut 13 screwed to the ball screw 12 is rotatably attached to the X-direction linear moving means 3. Rotate the nut 13 to rotate the bridge frame 4
The cutter head 2 movably provided in the X direction is moved directly in the X direction.

The cutter head 2 includes an air cylinder device 22 attached to a bracket 21 and a cutter block 24 having a cutter blade 23 and attached to a piston rod of the air cylinder device 22. By supplying and discharging high-pressure air to and from the device 22, the cutter block 24 is moved up and down, and the cutter blade 23 is moved forward and backward with respect to the surface of the glass plate 25. When the cutter blade 23 is pressed against the surface of the glass plate 25 by the air pressure of the air cylinder device 22, a cutting line (a broken line) is formed on the glass plate 25.
C is added.

Sliders 31 and 32 are attached to the lower surfaces of both ends 5 and 6 of the bridge frame 4, and the slider 31 is a rail extending in the Y direction and attached to a bed 33 on which the glass plate 25 is placed. 34, the slider 32 is also slidably fitted in the Y direction.
The bridge frame 4 is slidably fitted in the Y direction on the rail 35 extending in the Y direction and attached to the bridge frame 3. Thus, the bridge frame 4 is guided by the rails 34 and 35 and is movable in the Y direction.

The ball screws 9 and 10 are fixed at both ends thereof to a bed 33 via a support member 37, and the ball screw nuts 7 and 8 screwed to the ball screws 9 and 10 are formed identically. The ball screw nut 7 will be described below. The ball screw nut 7 includes a nut body 44 rotatably mounted via a ball 43 inside a cylindrical member 42 attached to the bridge frame 4 by bolts 41, a hole 45 formed in the nut body 44, and a hole 45. And a plurality of steel balls 49 which are communicated with both ends of the ball screw 9 and are continuously arranged in a spiral hole 48 formed by the screw groove 46 of the ball screw 9 and the spiral groove 47 on the inner peripheral surface of the nut body 44. The rotation of the nut body 44 about the screw shaft 9 moves the nut body 44, and thus the bridge frame 4 connected to the nut body 44 via the ball 43 and the cylindrical member 42 in the Y direction.
The nut body 44 has a toothed pulley 52
The timing belt 5 is attached to the pulley 52.
Three is hung. A toothed pulley 54 is also fixed to a nut body (not shown) of the ball screw nut 8, and a timing belt 55 is hung on the pulley 54.

The electric motors 61 of the Y-direction linear motion means 11 provided at both ends 5 and 6 of the bridge frame 4 respectively.
And 62 are provided with toothed pulleys 63 and 64, respectively.
Are fixed respectively, and timing belts 53 and 54 are hung on the pulleys 63 and 64, respectively. When the motors 61 and 62 are operated in synchronization and the output rotation shaft is rotated, on the other hand, the nut main body 44 is driven via the pulley 63, the timing belt 53 and the pulley 52.
Is rotated, and on the other hand, the nut body of the ball screw nut 8 is rotated via the pulley 64, the timing belt 55, and the pulley 54, and thus both ends 5 and 6 of the bridge frame 4 are synchronously moved in the Y direction.

The X-direction linearly moving means 3 has an electric motor 71. The motor 71 is mounted on a base 72 via bolts 73. The base 72 on which the bracket 21 is mounted also has a bolt 74. The slider 75 is attached via the. The slider 75 is slidably fitted in the X direction on a rail 76 attached to the side surface of the bridge frame 4, and thus the base 72 is movable in the X direction.

The ball screw 12 is fixed at both ends thereof to the upper surface of the bridge frame 4 via support members 81 and 82, and the ball screw nut 13 is formed in the same manner as the ball screw nuts 7 and 8. Ball screw 1
2 is rotatably attached to the base 72, and a timing belt 85 is hung on a toothed pulley 84 fixed to the nut body 83. The timing belt 85 is The pulley 86, the timing belt 85, and the pulley 8 are also hung on the toothed belt 86 attached to the output rotary shaft of the pulley 86.
4 through which the nut body 83 is rotated.
2 mounted on the base 72 and the bridge frame 4 in the X direction
The cutter head 2 movably provided in the direction is moved in the X direction.

The motors 61, 62, 71 and the pneumatic cylinder device 22 are connected to a numerical controller 91, respectively, and the motors 61, 62, 71 and the pneumatic cylinders are stored in a storage device of the numerical controller 91 in advance. The operation of the cylinder device 22 is controlled.

The numerically controlled cutting device 1 for a glass sheet thus formed operates as follows. Under the control of the numerical controller 91, the motors 61 and 62 are operated synchronously, whereby the nut bodies of the ball screw nuts 7 and 8 are synchronously rotated, and both ends 5 and 6 of the bridge frame 4 are also synchronized. Is moved in the Y direction. At the same time, the motor 71 is operated under the control of the numerical controller 91, whereby the nut body of the ball screw nut 13 is rotated, and the base 72 is moved in the X direction. The cutter head 2 is moved along the cutting line C to be provided by the movement of the bridge frame 4 in the Y direction and the movement of the base 72 in the X direction. When the cutter head 2 is moved to a position where the cutting line C is to be formed, the numerical controller 91 operates the pneumatic cylinder device 22 to lower the cutter block 24 and press the cutter blade 23 against the surface of the glass plate 25. As a result, a predetermined cutting line C is formed on the surface of the glass plate 25 in accordance with the shape to be split.

By the way, in the numerically controlled cutting apparatus 1 for a glass plate, the nut bodies of the ball screw nuts 7, 8 and 13 screwed to the long ball screws 9, 10 and 12 are rotated without rotating the long ball screws 9, 10 and 12. To move the bridge frame 4 and the base 72 in the Y direction and the X direction.
, No bending vibration occurs due to high-speed rotation of the long ball screws 9, 10 and 12, and conversely, the nut bodies of the ball screw nuts 7, 8 and 13 can be easily rotated at high speed. Thus, the cutter head 2 can be moved at a high speed. Further, since the nut bodies of the ball screw nuts 7 and 8 are synchronously rotated, the cutter blade 23 can be accurately moved.

[0020]

[0021]

As described above, according to the present invention, a ball
Rotate the cutter nut to move the cutter head straight in the X direction.
X-axis linear motion means
The cutter head can be moved in the X direction, so that the cutter head can be accurately moved in the X direction.

[Brief description of the drawings]

FIG. 1 is a plan view of a preferred embodiment of the present invention.

FIG. 2 is a front view of the embodiment shown in FIG.

FIG. 3 is a partially detailed sectional view of the embodiment shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Numerical control cutting apparatus of a glass plate 2 Cutter head 3 X direction linear motion means 4 Bridge frame 7, 8 Ball screw nut 9, 10 Ball screw 11 Y direction linear motion means 12 Other ball screw 13 Other ball screw nut

Claims (2)

(57) [Claims] 1. A bridge frame movable in the Y direction is mounted in the Y direction.
Y-direction linear moving means for linearly moving the
While providing a cutter head movably in the X direction on the frame,
X-direction linear moving means for linearly moving the cutter head is provided,
A ball screw nut is rotatably mounted on this X-direction
And screw it into this ball screw nut to bridge bridge
The ball is extended in the X direction to provide a ball screw.
Rotate the ball screw nut according to the step
Numerically controlled cutting device for glass plate that is moved directly in X direction . 2. A bridge movably attached to the bridge frame in the X direction.
With a cutter head, and move this cutter head
X-direction linear motion means is provided.
Attach the ball screw nut to the
Screw into the bridge frame and extend in the X direction to the ball
Provide a screw and set the ball screw nut
Rotate to move the cutter head directly in the X direction.
Numerical control apparatus for cutting a glass plate is.