JPH029558A - Numerical control chamfering machine for glass sheet - Google Patents

Abstract

PURPOSE:To perform a rapid and automatic work to chamfer a glass plate by a method wherein machining parts respectively positioned facing a plurality of machining head are arranged in a linear manner, and the glass plate being a work is linearly conveyed to the machining part, fed thereto for positioning, and taken out therefrom. CONSTITUTION:A glass to be machined is securely adsorbed to a fixing table 2 of an edging work part in the lowering position of a feed device 40. With this state, and an edging work is applied on the glass to be machined by means of an edging head 3A of machining heads 3A-3D aligned in one row. After the glass plate is released from the fixing table 2, the feed device 40 is raised, and the glass plate is received by the feed device 40. Along with movement of a conveyor belt, the glass plate is moved, in parallel, to a subsequent bevel cutting work part and positioned for a stop. After a beveling work is applied on the glass plate by means of a beveling cutting head 3B, the glass plate is fed for positioning, in order, to the smoothing head 3C and the polishing head 3D, and desired machining applied thereon, the glass plate is taken out.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for wide chamfering p (beveling) of glass plates of various shapes such as circular, oval, rectangular and various curves while controlling the operation of the machine using numerical commands. Regarding numerically controlled chamfering machines.

Generally, the wide chamfering (beveling) process includes edge edge cutting (edge cutting or edge grinding), chamfer cutting (bevel cutting with a diamond wheel), and surface grinding of the chamfered surface. Grinding (smoothing with a grindstone, etc.)
It is necessary to go through various processes such as polishing and polishing the chamfered and ground surfaces.

However, in each of these steps, it is necessary to provide the processing head, and ultimately the processing wheel, with a mechanical coordinate axis so that the processing head runs along the edge of the glass plate, and to numerically control each of these axes.

By the way, controlling all of the above processes requires a large number of control axes, a large number of numerical control devices, a highly complex numerical control device, and the control tape production program is complicated and difficult. Become.

Therefore, the present invention eliminates the mechanical connection of a large number of complicated control axes that govern the machining of each process, and allows simultaneous numerical control of the working motion of each process using a single or a small number of numerical control devices. .

Furthermore, it is an object of the present invention to speedily arrange the apparatuses for each of the above-mentioned processing steps in a straight line and automatically supply, transport, and automatically position the glass plate to the apparatuses for each of these processing steps. The aim was to provide a machine that could perform automatic chamfering.

An embodiment of the present invention will be described below with reference to the drawings.

The present invention provides a plurality of fixing tables 2 for setting glass plates horizontally.
Table 1 (X
A cross table 4 (axis) and a plurality of processing heads 3 are arranged in a straight line and move orthogonal to the table l.
Y-axis) and a rotating device that simultaneously horizontally rotates the necessary number of processing heads 3 installed on this cross table 4 [5 (C-axis rotates around the Z-axis) and 1 for various types of processing. The structure is such that the parts 6 are simultaneously numerically controlled.

The fixing bases 2 for the glass plates of the table 1 are provided, for example, at five locations at equal intervals as shown in the drawing, and each of the fixing bases 21 fixes the glass plate horizontally. For example, the fixing bases 2 have a suction cup structure for adsorbing a glass plate, or a structure for connecting to a vacuum pump or the like to suck and discharge air.

The table 1 is equipped with a supply device [40] that automatically supplies, automatically takes out, positions, and conveys glass plates to the various processing units 6.

Note that details of this supply device @40 will be described later.

Further, the table 1 is supported by slide devices 7 so as to have a horizontal horizontal axis and move in a straight line,
These slide devices 7 consist of a slide bearing 8 mounted on the underside of the table and a track rail 10 laid on a machine base 9.

Of course, the table 1 is equipped with a feeding mechanism, and the feeding screw 12 connected to the servo starter 11 and the table 1
It has a nut 13 attached to it.

This cross table 4 is also equipped with mechanisms 34 and 34 for heating and feeding on both sides. These feed mechanism 34 includes a feed screw 35 supported on the machine base 9 and a nut 36 attached to the cross base 4, and has both left and right feed screws. /35.35 is connected to a connecting shaft 38 via, for example, a bevel gear train 37, and this connecting shaft 38 is connected to a servo motor 39 via a transmission means such as a timing belt. Next, above the table 1, the cross stand is mounted, which has an axis that is perpendicular to the movement of the table 1 and moves linearly in the front-rear direction. That is, the cross base 4 is supported by the machine base 9 via slide devices 15 and 15 on both sides, and these slide devices 15 are connected to the SQUID bearing 16 and the track rail 17 attached to the four-seat base 4. Become. The cross table 4 is moved linearly in the horizontal plane (by means of these sliding devices 15, 15 on both sides) in the longitudinal direction. Now, this cross table 4 is equipped with a plurality of processing heads 3, for example, five processing heads 3, which are arranged in rows in the process order: an etching head 3^, a bevel cutting RIJ head 3B, a smoothing head 3C, and a polishing head 3D. It is.

The etching head 3A simply controls the cutting or grinding (also referred to as edge grinding) of edges (end faces), and performs cylindrical cutting and grinding using a flat diamond wheel.

The bevel cutting head 3B performs cutting with a small amount of chamfering, and the cup type diamond wheel 26 is attached to the glass plate.
The smoothing head 3C performs bevel grinding in an inclined position (also referred to as smoothing or abrasive grinding).
, a grinding wheel such as a cup type whetstone is coated on a glass plate]
, and bevel grinding in a tilted position. The polishing head 3D performs the polishing process of polishing the surface after grinding], and has the same cup-type felt wheel (covers the glass plate and performs polishing in an inclined position).

Next, the structure of each processing head 3 will be explained.

As shown in FIG. 6, the etching head 3A is simply controlled by the linear XY axes, and performs edge-sliding processing by cylindrical cutting and grinding 1 while following the contour of the edge of the glass plate. Not prepared. This etching head 3A has a solenoid 18. which also serves as a grinder. A motor holder 20 is provided to receive and hold a set of wheels 26 attached to the shaft of the motor 1B and the motor 18.

This motor holding stand 20 is attached to a slide 22 of a slide device 21 installed on the cross stand 4. This slide device fl121 consists of the slide 22, a feed cinezo 23 and a nut 19 for adjusting and moving the slide 22 up and down, and a slide base 24. As a result, by operating the feeding screw 23, this etching head 3
In addition, the vertical position of the etching wheel 26 can be adjusted.

Next, bevel cutting head 3B, smoothing head 3C
The polishing head 3D is different from the above-mentioned etching head 3 in that it is equipped with a turning device 5 as shown in the drawing, and in the shape and posture of the wheel 26 that controls cutting, grinding, etc.
It is different from A, but the rest is almost the same. That is, the motor 18 that also serves as a spindle and the motor 18
A motor holding stand 20 is provided for receiving and holding a set of motors. Furthermore, a ball nut slide 25 is provided so that the cutting and grinding angles of the grinding wheel 26 and the angle of the motor 19 can be changed. The slide 25 is the motor holding base 2
It is rotatably attached to 0. On the other hand, each motor holding stand 20 is held by a rotating device 5, as shown in the diagram.

These swivel devices e5 are installed in the 13 units 4 via the slide device 21. That is, each turning device 5
is attached to the slide 22 and can be freely adjusted and moved in the vertical direction by means of the feed screw 23, and in turn the processing head 3.
B, 3C, and 3C are arranged so that the cutting depth of each cutting/grinding wheel 26 into the glass plate 27 can be adjusted. As shown in FIG. 5, the rotating device 5 includes a hexong body 4, a pivot shaft 29 inserted into the housing body 28, and a pivot shaft 29 that is held in the hexong body 28 so as to be horizontally rotatable. It consists of an assembled body with a plurality of bearings 30. The above)-Using body 28 is attached to the slide device 21, especially the slide 22, which is attached to the cross base 4.

Each turning device 5 of the bevel cutting head 3B, smoothing head 3C, and polishing head 3D uses the Z axis perpendicular to the linear control axis xy as a rotation axis (C axis), and these turning devices 5 are numerically controlled. 1, each turning shaft 29 is connected to a servo motor 31 (C-axis control) at the upper part via a transmission means 32 such as a timing belt.

As shown in FIG. is passing through. Therefore each wheel 26
is a horizontal rotation (numerically controlled according to the shape change of the glass edge) centering on these bevel cutting points P1, bevel grinding point P, and polishing point P, which are currently in progress, respectively, regardless of the shape change of the glass plate edge. wheel 2
6 is designed so that cutting, grinding, and polishing are carried out while always keeping the angle of cutting and grinding the same. That is, each wheel 26 performs cutting, grinding and polishing while spinning numerically controlled around the cutting and grinding section as necessary.

The numerical control method for the swing device 5 may use, for example, linear-circular combined interpolation that combines linear interpolation and circular interpolation as programming.

That is, while circular interpolation is performed on the XY plane, the rotation of the C axis is numerically controlled in proportion to the rotation angle of the circular arc.

Next, the system configuration and operation of the supply device 40 for table 1 will be described.

As shown in FIGS. 1 and 2, the feeding device 40 is not a belt conveyor system, but the belt conveyor system 41 is a double conveyor system in which two single conveyors 42 and 42 are arranged in parallel. , these single conveyors 42, 42 are connected to each other and are integrated.

The belt conveyor system 41 is designed to move up and down. The belt conveyor equipment F1410 is made up of a total of 4 jack screw devices T44, one in front and one in the middle, and one in the middle.
The gear box body 48 holding the screws 7 and screws 47 is mounted on the table 1 directly or via a frame body.

The ear box bodies 48 are connected to each other by a shaft 49, and receive transmission from the shaft 49, and are connected to each other by the screw 47.
Rotate. Of course, the shaft 49 is connected to a drive device 50 that receives automatic control commands.

On the other hand, the double conveyor 41.41 has a belt 51, a driving drum 52, a pooled drum 53. A belt tensioning device is provided, and the drive drums 52 of both conveyors are connected by a shaft so that they rotate together. In addition, 54 in the figure is a motor with a reducer for driving the drive drum 52. In FIG. 3 and FIG.
is the provision.

According to the present invention as described above, the etching head 3A, the beveling cutting head 3B,
The smoothing head 3C and polishing head 3D are integrally moved by the cross table 4 in a linear motion along the Y axis, while fixing the glass, and each of the fixed tables 2 arranged in a row is moved by the table 1. The numerically controlled turning of the turning device 5 installed on the processing heads 3B, 3C, and 3D, which together form a straight line on the The controlled chamfering machine and the supply device 40, which is connected to the chamfering machine, perform the following operations to automatically chamfer the glass sheets in sequence. That is, at the lowering position of the supply device 40, The chamfering machine operates with the fixed base 21ζ of the etching work section adsorbing and fixing the glass plate, and when the processing head finishes following the contour (cycle operation), the fixed base 2 releases the glass plate and the supply device R40 rises to receive this glass plate, the conveyor belt moves, moves the glass plate parallel to the next bevel cutting work section, and stops at the position, the supply device 40 descends, and the fixing table 2 fixes the glass plate by suction. do. At this time again, the next piece of glass is set on the fixing base 2 of the gill song section from which the glass plate has been released.

The chamfering machine operates again. In this way, the glass plates are conveyed while being automatically supplied one after another to various processing sections.

[Brief explanation of the drawing]

Fig. 1 is a front view, Fig. 2 is a plan view, Fig. 3 is a front view with a stabilized structure, and Fig. 4 is a plan view of the machine shown in Fig. 3. l...Table, 2...Fixed stand,
3...Processing head, 4...Cross table, 5...Swivel device, 6...
Feeding mechanism, 3A...Edging head, 3
B...Bevel cutting head, 7... Group/slide device, 9... Root stand, 18...
Motor 1'-20...Motor holding stand, 21
...Slide device, 26..Wheel, 27. Old glass plate, 40.. Supply device. Engineering M Moki Kane - 1.1 Certain Forgery - Shiyumi Tone L Agent tP
January 28, 1985 1, Display of case Name of patented invention filed on December 29, 1986 Numerical control beveling machine for glass plates 3, Case to be amended relationship with

Claims (1)

[Claims] A plurality of fixed stands arranged in a straight line for horizontally setting a glass plate, a table having an axis extending in the horizontal direction, and a plurality of processing heads installed parallel to the straight line. , consists of a cross table that moves in a direction perpendicular to the table, and a turning device that collectively horizontally turns the processing heads installed on the cross table, and a plurality of various processing parts are arranged in a straight line, and these processing parts are A supply device is installed through the glass processing section, and is configured to automatically convey, position, supply, and take out the glass to be processed in a straight line through the processing section, and each processing section is numerically controlled by one program. Numerical control beveling machine for glass plates.