JPH08336746A - Numerically controlled grinding machine for glass plate - Google Patents

Abstract

PURPOSE: To provide a numerically controlled grinding machine for glass plate in which replacement of a grinding wheel is dispensed with, and a round edge and a chamfered edge can be formed in required positions of one glass plate by one execution of a grinding program. CONSTITUTION: A numerically controlled grinding machine for glass plate 60 is provided with a table 3 for supporting a glass plate 5; a motor 35 for rotating a grooved grinding wheel 38 for grinding the peripheral edge of the glass plate 5; a moving device 53 for relatively moving the grooved grinding wheel 38 in X-Y direction to the glass plate 5; a moving device 40 for relatively moving the grooved grinding wheel 38 in Z-direction to the glass plate 5; and a numerical control device for numerically controlling the moving operations in both the moving devices.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass plate numerical control grinding machine for grinding a peripheral edge of a glass plate.

[0002]

When chamfering the peripheral edge of a glass plate or making the peripheral edge of a glass plate a round edge, conventionally, a grinding wheel for chamfering is prepared and chamfering is performed. Moreover, a grinding wheel for a round edge is prepared to perform the round edge grinding.

By the way, when round edge polishing is applied to a part of the peripheral edge area of one glass plate such as an automobile window glass and chamfering is applied to the other peripheral edge area, for example, First, the area determined by the grinding wheel for a round edge is ground and polished, and then the grinding wheel is replaced with a chamfering one, and the remaining area is ground. However, with such means, it takes time to replace the grinding wheel, and the grinding program must be executed twice, resulting in extremely poor workability.

The present invention has been made in view of the above points, and an object of the present invention is to replace a grinding wheel without needing to replace a grinding wheel so that a desired portion of one glass plate can be formed by executing a grinding program once. It is an object of the present invention to provide a numerically controlled grinding machine for glass plates, which is capable of forming round edges and chamfered edges.

[0005]

According to the invention, said object is to rotate a table for supporting a glass plate and a grooved grinding wheel for grinding the peripheral edge of the glass plate supported by this table by rotation. , A rotation driving device connected to the grooved grinding wheel, with respect to the glass plate, in a first direction along the surface of the glass plate and in a second direction along the surface of the glass plate and orthogonal to the first direction. A first moving device that relatively moves the grooved grinding wheel, and a second moving device that relatively moves the grooved grinding wheel in a third direction orthogonal to the surface of the glass plate with respect to the glass plate. When,
A numerically controlled grinding machine for glass sheets, which comprises a numerical control device connected to the first and second moving devices for numerically controlling the movement movements in the first and second moving devices.

According to the invention, said object also comprises a turning device connected to the grooved grinding wheel for turning the grooved grinding wheel in the plane of the glass sheet,
The numerical control device can also be achieved by the above-mentioned numerically controlled grinding machine for glass sheets, which is connected to the swivel device in order to numerically control the swiveling motion in this swivel device.

According to the numerically controlled grinding machine for a glass plate of the present invention, in addition to the first moving device, the grooved grinding wheel is relatively opposed to the glass plate in the third direction orthogonal to the surface of the glass plate. A second moving device for moving the glass plate is provided, and the second moving device is numerically controlled by being connected to the numerical controller together with the first moving device. , If the second moving device relatively moves the grooved grinding wheel with respect to the glass plate in the third direction so that the groove of the grooved grinding wheel and the peripheral edge of the glass plate are evenly contacted, While the peripheral edge of the glass plate can be rounded, the second moving device moves the grooved grinding wheel relative to the glass plate in the third direction to move the groove of the grooved grinding wheel and the glass plate. With peripheral edges If so contacted biased,
The peripheral edge of the glass sheet can be chamfered, so that one program run can form a rounded edge and a chamfered edge in predetermined areas of the peripheral edge of the glass sheet without replacing the grooved grinding wheel. The working time can be greatly shortened and the grinding work can be extremely simplified.

Further, according to the numerically controlled grinding machine for a glass plate of the present invention equipped with the turning device for turning the grooved grinding wheel in the plane of the glass plate, the grinding point can be arranged on the turning center line. In addition, the program can be simplified, and in addition, the peripheral edge of a glass plate including many curves such as a circular glass plate and an elliptical glass plate can be accurately ground.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention and the embodiments of the present invention will be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these examples.

[0010]

1 to 4, a pair of parallel rails 2 is attached to a base 1, and a slider 4 fixed to a table 3 is a glass plate 5 mounted on the rail 2.
Is slidably fitted in the X direction which is the first direction along the surface of the table 3, and the table 3 is provided with a suction device 6 that vacuum-sucks the glass plate 5 and fixes the glass plate 5. A nut 7 is attached to the lower surface of the table 3,
A screw rod 8 is screwed onto the nut 7. The screw rod 8 is
Both ends are rotatably supported by bearings 9 and 10, and one end of the screw rod 8 is connected to a rotation output shaft of a servomotor 11 fixed to the base 1. When the screw rod 8 is rotated by the rotation of the rotation output shaft of the motor 11, the nut 7 screwed onto the screw rod 8 is moved in the X direction, and as a result, the table 3 and thus the glass plate 5 are also moved in the X direction. It

A pair of support frames 12 attached to the base 1.
The horizontal support frame 13 is bridged to the side, and a pair of parallel rails 14 are attached to the side surfaces of the horizontal support frame 13. A slider 16 fixed to a moving base 15 is slidably fitted to the rail 14 along the surface of the glass plate 5 and in a Y direction which is a second direction orthogonal to the X direction. A nut 17 is attached to the nut 17, and a screw rod 18 is screwed into the nut 17.

The rotation output shaft of the servo motor 19 attached to the moving table 15 is connected to the pulley 21 via the bearing 20, and the belt 22 hung on the pulley 21 is
The rotary shaft 2 of the pulley 23 is also hung on the pulley 23.
The bearing 4 is rotatably supported by bearings 25 and 26 attached to the moving base 15. The gear 2 is attached to the rotary shaft 24.
7, the gear 27 meshes with the gear 28, and the rotation shaft 29 of the gear 28 is rotatably supported by the bearing 30 attached to the moving table 15.

A grip body 33 is provided on an upper end of a support body 32 of the grinding head 31, and the grip body 33 grips a lower end of a rotary shaft 29 to suspend and connect the grinding head 31 to the shaft 29. A slider 34 is slidably attached to the support 32 in the Z direction, which is a third direction orthogonal to the surface of the glass plate 5, and a motor 35 is attached to the slider 34. A grooved grinding wheel 38 having a groove 37 is attached to the rotary output shaft 36. The rotation of the rotation output shaft 36 of the motor 35 as a rotary drive causes the grinding wheel 38 to rotate about the center line 67, whereby the grinding wheel 38 grinds the peripheral edge of the glass plate 5. The rotation of the rotation output shaft of the motor 19 causes the pulley 21, the belt 22, and the pulley 2 to rotate.
3, the rotary shaft 24, the rotary shaft 29 through the gears 27 and 28
Is rotated about the center line 65 of the rotary shaft 29, so that the support 32, and thus the motor 35 and the grinding wheel 38 are swiveled about the center line 65. Therefore, the motor 19, the gears 27 and 28, the grip body 33 and the support body 32 form a turning device for turning the grinding wheel 38 in the plane of the glass plate 5.

A bearing 39 and a servomotor 40 are attached to the support 32, and the bearing 39 is a slider 34.
A rotary shaft 42 having a screw portion 41 that is screwed into is rotatably supported, and a pulley 44 around which a belt 43 is hung is fixed to one end of the rotary shaft 42. The belt 43 is
The pulley 4 attached to the rotation output shaft 45 of the motor 40
It is also hung on 6. The rotation of the rotation shaft 45 of the motor 40 causes the rotation shaft 42 to rotate via the pulley 46, the belt 43, and the pulley 44. As a result, the slider 34 screwed into the screw portion 41, and thus the motor 35 and the grinding wheel 38.
Are moved in the Z direction. Therefore, the motor 40 and the pulley 4
4, 46, belt 43, rotary shaft 42 and slider 34
Forms a moving device that moves the grinding wheel 38 relative to the glass plate 5 in a third direction orthogonal to the surface of the glass plate 5.

The support 32 is provided with fine adjustment mechanisms 47 and 48 for finely moving the motor 35 in the X and Y directions.

The threaded rod 18 is rotatably supported by bearings 49 and 50 at both ends, a pulley 51 is attached to one end of the threaded rod 18, and a belt 52 hung on the pulley 51 is a servomotor. It is also hung on a pulley 54 attached to the rotation output shaft of 53. Motor 5
As a result of the rotation of the rotation output shaft of 3, the screw rod 18 is rotated via the pulley 54, the belt 52, and the pulley 51, as a result, the nut 17 screwed onto the screw rod 18 is moved in the Y direction, and thereby the moving base. 15, by extension the motor 35 and the grinding wheel 38 are moved in the Y direction.

Therefore, the motor 11, the screw rod 8, the nut 7
A first direction along the surface of the glass plate 5 with respect to the glass plate 5 by the X-direction moving device including the table 3 and the motor 53, the screw rod 18, the nut 17, and the moving table 15 in the Y direction And the grinding wheel 38 in the second direction along the surface of the glass plate 5 and orthogonal to the first direction.
Forming a moving device for relatively moving.

Motors 11, 19, 35, 40 and 53
Is connected to a numerical controller (not shown), and is controlled by the numerical controller to control the rotation of its rotation output shaft.

The operation of the glass plate numerically controlled grinding machine 60 constructed as described above is performed in the glass plate 5 of the automobile window shown in FIG. 5 in the peripheral area 61 as shown in FIG. (Tapered edge) 62 to the peripheral region 63
A case of forming the round edge 64 as shown in FIG. 7 will be described.

First, the numerical control program uses the center line 65.
It is created so that the peripheral edge of the glass plate 5 to be ground is arranged on the extension line of. Then, the glass plate 5 to be cut by the suction device 6 is fixed on the table 3. Here, the point where the grinding wheel 38 and the glass plate 5 contact each other, that is, the grinding point (working point) 66 is arranged on the peripheral edge of the glass plate 5 to be ground, in other words, on the extension of the center line 65. , The fine adjustment mechanisms 47 and 48 are operated. After that, by operating the numerical controller, the rotation of the rotation output shafts of the motors 11 and 53 numerically controlled,
As a result of the rotation of the threaded rods 8 and 18, the table 3 is
In terms of direction, the carriage 15 is moved with respect to the Y direction, so that the center line 65, ie the grinding point 66, is successively moved along the peripheral edge of the glass sheet 5 to be ground and the grinding wheel 38 is rotated. As a result, the peripheral edge of the glass plate 5 is cut. In addition, as a result of numerically controlling the motor 19 by the numerical control device during grinding, as a result of the numerically controlled rotation of the rotation output shaft of the motor 19, the belt 2 is rotated.
2, the rotating shaft 24, the rotating shaft 29 through the gears 27 and 28
Is rotated, so that the support 32 moves the center line 6 of the rotary shaft 29.
5 around the center line 6 of the grinding wheel 38
A straight line 68 connecting 7 and the turning center 65 is made to be a normal line at the grinding point 66 of the peripheral edge of the glass plate 5.

When grinding the peripheral region 61,
To displace the grinding wheel 38 to the table 3 side,
The motor 40 is numerically controlled by the numerical controller. When the rotation output shaft 45 of the motor 40 is rotated by numerical control,
Rotating shaft 4 via pulley 46, belt 43, and pulley 44
2 is rotated and the slider 34 is moved in the Z direction, so that the motor 35 and the grinding wheel 38 are also moved in the Z direction. When the grinding wheel 38 is moved to the side of the table 3 which is one of the Z directions, the peripheral edge of the glass plate 5 is strongly pressed against one of the light slopes of the groove 37 of the grinding wheel 38 to be ground. A chamfered edge 62 as shown in FIG. 6 may be formed on the peripheral edge of the glass plate 5. On the other hand, when grinding the peripheral region 63 subsequent to the peripheral region 61, the motor 40 is controlled by the numerical controller so that the peripheral edge of the glass plate 5 is located in the concave groove 37 without being displaced. As a result, the glass plate 5 having the round edge 64 in the peripheral region 63 as shown in FIG. 7 can be obtained.

In the above embodiment, the positioning of the grinding point 66 in the X direction was performed by moving the table 3, but instead of this, the table 3 is fixed and the support frame 13 is moved in the X direction. Alternatively, the table 3 itself may be moved in the X and Y directions.

In addition, in the above-described embodiment, the slider 34 is moved to position the grinding point 66 in the Z direction, but instead of this, the glass plate 5 side such as the table 3 is moved in the Z direction. You may let me do it.

Further, the rotation control of the rotation output shaft 36 of the motor 35 may be performed by a numerical controller, but the present invention is not limited to this, and may be rotated at a constant rotation speed. .

[0025]

As described above, according to the present invention, it is possible to perform peripheral edge machining of a plurality of types of shapes without exchanging a grooved grinding wheel, and a single grinding program can be executed by executing one grinding program. A plurality of different shapes of processing can be applied to a required portion of the peripheral edge of the glass plate.

[Brief description of drawings]

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

2 is a side view of the embodiment shown in FIG. 1. FIG.

FIG. 3 is a plan view of the embodiment shown in FIG.

4 is a partially enlarged view of the embodiment shown in FIG.

FIG. 5 is a plan view showing an example of a glass plate to be cut.

6 is a cross-sectional view taken along the line AA shown in FIG.

FIG. 7 is a sectional view taken along line BB shown in FIG.

[Explanation of symbols]

 3 table 5 glass plate 11, 19, 40, 53 servo motor 15 moving base 31 grinding head 35 motor 38 grooved grinding wheel 34 slider

Claims (4)

[Claims] 1. A table for supporting a glass plate, and a rotary driving device connected to the grooved grinding wheel for rotating a grooved grinding wheel for grinding a peripheral edge of the glass plate supported by the table by rotation. , Relative to the glass plate, the grooved grinding wheel is relatively moved in a first direction along the surface of the glass plate and in a second direction orthogonal to the first direction along the surface of the glass plate. A moving device, a second moving device that relatively moves the grooved grinding wheel in a third direction orthogonal to the surface of the glass plate with respect to the glass plate, and a moving operation in the first and second moving devices A numerical control grinding machine for glass plates, which comprises a numerical control device connected to first and second moving devices for numerical control. 2. A turning device connected to the grooved grinding wheel is provided for turning the grooved grinding wheel in the plane of the glass plate, and the numerical controller also numerically performs the turning operation of the turning device. A numerically controlled grinding machine for glass sheets according to claim 1, which is connected to a swivel device for controlling. 3. The numerically controlled grinding machine for glass plates according to claim 1, wherein the second moving device is connected to the grooved grinding wheel for moving the grooved grinding wheel. 4. The numerically controlled grinding machine for glass plates according to claim 1, wherein the second moving device is connected to the table for moving the glass plates.