JP6902207B2 - End face processing method and end face processing equipment for glass plates - Google Patents

Description

The present invention relates to an end face processing method and an end face processing apparatus for a glass plate, and particularly to a technique for suppressing vibration during end face processing.

In recent years, in the production of glass substrates, one or a plurality of glass substrates have been cut out from a large glass original plate (molded original plate) for the purpose of improving production efficiency. This makes it possible to obtain a glass substrate having desired dimensions.

In addition, the end face of the glass substrate cut out from the original glass plate is usually ground (rough polishing) for the purpose of minimizing variations in end face quality that affect strength, etc., or for the purpose of ensuring the required shape accuracy. ) And polishing (finish polishing) are performed. This type of end face processing is performed by, for example, rotating a grindstone connected to a motor and bringing it into contact with the end face of a glass substrate (see, for example, Patent Document 1). Further, the contact between the grindstone and the end face is usually made with respect to the end face of the glass substrate by a moving mechanism in a direction along the transport direction of the glass substrate and a moving mechanism in a direction orthogonal to the transport direction of the glass substrate. This is performed with the position of the grindstone adjusted (see, for example, Patent Document 2).

International release WO2013 / 187400 JP 2011-168444

In this way, when adjusting the grindstone to a predetermined position, the grindstone is mounted on the spindle, and the spindle is rotatably supported by the spindle head. This spindle head is attached to the slide mechanism via a predetermined jig (see, for example, FIG. 2 of Patent Document 2). In this case, the spindle head is attached to one end of the jig and the slide mechanism is connected to the other end of the jig. Therefore, the spindle head is cantilevered and supported via the jig. Therefore, for example, when the spindle head must be installed far away from the slide mechanism due to the surrounding installation space, the length of the arm of the jig supporting the spindle head cantilever (extended in the horizontal direction). The length of the part) becomes larger. As the length of the arm increases, the vibration generated during the end face processing of the glass plate increases. Therefore, in order to improve the accuracy of the end face processing, it is necessary to suppress this type of vibration.

In view of the above circumstances, it is a technical problem to be solved by the present invention to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

The solution to the above problems is achieved by the method for processing the end face of the glass plate according to the present invention. That is, this end face processing method is a method for processing an end face of a glass plate by bringing a tool provided in the end face processing device into contact with the end face of the glass plate while rotating the tool. It includes a spindle to be mounted, a spindle head that rotatably supports the spindle, a support member that supports the spindle head, and a moving device that moves the supporting member with respect to the glass plate, and the supporting member is connected to the moving device. It has a connecting plate portion to be connected and a base plate portion extending in a predetermined direction from the connecting plate portion and to which the spindle head is directly or indirectly attached. The connecting plate portion and the base plate portion are box-shaped together with a plurality of plate portions. The box-shaped body is characterized by having a first rib inside which extends in a direction intersecting the extension direction of the base plate portion.

As described above, in the end face processing method according to the present invention, since the box-shaped body is formed by a plurality of plate portions including the connection plate portion and the base plate portion, the strength of the support member that supports the spindle head can be increased. Further, in the end face processing method according to the present invention, since the first rib extending in the direction intersecting the extension direction of the base plate portion is provided inside the box-shaped body, a load for deforming the box-shaped body is provided. In particular, the first rib receives a load for deforming the box-shaped body so that the cross-sectional shape of the box-shaped body becomes a parallelogram, and the resistance to the above deformation can be increased. Therefore, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

Further, in the method for processing the end face of the glass plate according to the present invention, at least a part of a plurality of plate portions including the connection plate portion and the base plate portion may be fixed to each other by welding.

In the case of welding between plate portions, for example, a joint portion by welding can be continuously formed along a corner portion generated by contact between plate portions. As a result, the joining area can be increased as compared with, for example, bolt fastening, so that the joining strength between the plate portions can be increased by that amount, and the strength of the box-shaped body can be further improved. Further, in the case of bolt fastening, it is necessary to provide holes for bolts in the plate portion, and there is a concern that the strength of the plate portion may be reduced by the amount of the holes, whereas in the case of welding, such a concern does not occur. Therefore, in this respect as well, the strength of the box-shaped body can be expected to be improved.

Further, in the method for processing the end face of the glass plate according to the present invention, the first rib may be provided at the tip of the box-shaped body.

Considering that the box-shaped body protrudes from the slide mechanism (connecting plate portion), the vibration tends to be larger toward the tip of the box-shaped body. Therefore, by providing the first rib at the tip of the box-shaped body, the vibration generated in the box-shaped body can be effectively suppressed.

Further, in the method for processing the end face of the glass plate according to the present invention, the box-shaped body has a plurality of first ribs, and the first ribs are provided at the tip of the box-shaped body and an intermediate position between the box-shaped bodies. You may.

By providing the first rib at an intermediate position together with the tip of the box-shaped body, the strength of the support member can be further increased. In order to ensure workability, the first rib provided at the tip of the box-shaped body may be detachably configured with respect to the box-shaped body.

Further, in the method for processing the end face of the glass plate according to the present invention, the box-shaped body may have a second rib extending in the direction along the extension direction of the base plate portion inside the box-shaped body.

In this way, by providing the ribs (second ribs) that extend in the direction along the extension direction of the base plate portion, the box-shaped body is attempted to bend along the extension direction (extension direction of the base plate portion). The load can be received by the second rib to increase the resistance to the above-mentioned deflection deformation. Therefore, this also makes it possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

Further, in the method for processing the end face of a glass plate according to the present invention, the tool may be a grindstone, the spindle head may be arranged on the tip end side of the base plate portion, and the base plate portion may be extended in the horizontal direction.

According to the present invention, the strength of the support member can be increased by forming a box-shaped body such as a base plate portion. Therefore, even when the spindle head is arranged on the tip end side of the base plate portion and the base plate portion extends in the horizontal direction, it is possible to obtain a sufficient vibration suppressing effect.

Further, the solution of the above problems is also achieved by the end face processing apparatus for the glass plate according to the present invention. That is, this end face processing device is an end face processing device for a glass plate that performs a predetermined processing on the end face of the glass plate by a rotating tool, and the end face processing device rotatably supports the spindle on which the tool is mounted and the spindle. A spindle head, a support member for supporting the spindle head, and a moving device for moving the support member with respect to the glass plate are provided, and the support member has a connection plate portion connected to the moving device and a predetermined orientation from the connection plate portion. It has a base plate part that extends to and to which the spindle head is directly or indirectly attached, the connection plate part and the base plate part form a box-like body together with a plurality of plate parts, and the box-like body is inside the base plate part. It is characterized by having a first rib that extends in a direction that intersects the extension direction of the base plate portion.

As described above, in the end face processing apparatus according to the present invention, since the box-shaped body is formed by a plurality of plate portions including the connection plate portion and the base plate portion, the strength of the support member that supports the spindle head can be increased. Further, in the end face processing apparatus according to the present invention, since the first rib extending in the direction intersecting the extension direction of the base plate portion is provided inside the box-shaped body, a load for deforming the box-shaped body is provided. In particular, the first rib receives a load for deforming the box-shaped body so that the cross-sectional shape of the box-shaped body becomes a parallelogram, and the resistance to the above deformation can be increased. Therefore, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

As described above, according to the present invention, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

It is a schematic plan view of the end face processing apparatus of the glass plate which concerns on 1st Embodiment of this invention. It is a partial cross-sectional side view of the end face processing machine shown in FIG. FIG. 2 is a cross-sectional view taken along the line AA of the end face processing machine shown in FIG. It is a BB cross-sectional view of the end face processing machine shown in FIG. FIG. 2 is a cross-sectional view taken along the line CC of the end face processing machine shown in FIG. It is a schematic plan view of the end face processing apparatus of the glass plate which concerns on 2nd Embodiment of this invention. It is sectional drawing of the main part DD of the end face processing machine shown in FIG. It is a main part AA sectional view of the end face processing apparatus of the glass plate which concerns on 3rd Embodiment of this invention. It is a main part AA sectional view of the end face processing apparatus of the glass plate which concerns on 4th Embodiment of this invention.

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 5. In each of the following embodiments, the case where the end face of the glass substrate is processed with a grindstone will be described as an example.

As shown in FIG. 1, the end face processing apparatus 10 according to the first embodiment of the present invention is for performing predetermined processing on the end face 2 of the glass plate 1, and includes a surface plate 11 for holding the glass plate 1. It is provided with end face processing machines 12 arranged on both sides of the glass plate 1 held by the surface plate 11.

The end face processing machine 12 is for bringing the grindstone 13 (14) into contact with the end face 2 of the glass plate 1 while rotating, and as shown in FIGS. 1 and 2, the spindle 15a on which the grindstone 13 (14) is mounted is attached. A spindle head 15b that rotatably supports the spindle 15a, a drive motor 16 that applies a rotational driving force to the spindle 15a, a support member 17 that supports the spindle head 15b, and a support member 17 with respect to the glass plate 1. A moving device 18 for moving is provided. In this case, the grindstone 13 (14) corresponds to the tool.

In the present embodiment, the moving device 18 includes a first slide mechanism 19 for sliding the grindstone 13 (14) in a direction along the feed direction F (hereinafter referred to as a Y direction) and a grindstone, as shown in FIG. It has a second slide mechanism 20 that slides 13 (14) in the cutting direction (hereinafter referred to as the X direction). Further, as shown in FIG. 2, the moving device 18 slides the grindstone 13 (14) in a direction orthogonal to both the feeding direction and the cutting direction (hereinafter referred to as the Z direction). Further has.

Here, the slide base 19a of the first slide mechanism 19 is fixed to the ground side, and the slide member 19b is fixed to the slide base 20a of the second slide mechanism 20 (see FIG. 1). Further, the slide member 20b of the second slide mechanism 20 is fixed to the slide base 21a of the third slide mechanism 21, and the support member 17 is attached to the slide member 21b of the third slide mechanism 21 (FIG. 2). reference). By moving the support member 17 by such a moving device 18, the grindstone 13 (14) can be moved to an arbitrary position.

As shown in FIG. 2, the support member 17 has a base plate portion 22 that supports the grindstone 13 (14) and the spindle head 15b, and a connection plate portion 23 that connects to the moving device 18. In the present embodiment, the connection plate portion 23 is fixed to the slide member 21b of the third slide mechanism 21.

In the present embodiment, the base plate portion 22 extends in the horizontal direction from the connection plate portion 23, and is in a so-called cantilevered state. An axial end portion (flange portion) 15c located at one end (lower end) in the axial direction of the spindle head 15b is attached to the tip end side (the side far from the connection plate portion 23) of the base plate portion 22, and the drive motor 16 One end (flange portion) 16a in the axial direction is attached. Further, holes 22a and 22b are formed in the base plate portion 22, and the spindle 15a held by the spindle head 15b rotatably and the rotating shaft 16b of the drive motor 16 are inserted into the holes 22a and 22b, respectively. .. The spindle 15a and the rotating shaft 16b are connected to each other via a belt 24 on the lower side of the base plate portion 22, whereby the rotational driving force generated by the driving motor 16 can be transmitted to the spindle 15a.

As shown in FIGS. 2 and 3, the base plate portion 22 and the connection plate portion 23 form a box-shaped body 28 together with a plurality of adjacent plate portions 25 to 27. In this case, the box-shaped body 28 extends in the horizontal direction from the connection plate portion 23, and the cross section of the box-shaped body 28 is rectangular. In the present embodiment, the plurality of plate portions 25 to 27 forming the box-shaped body 28 together with the base plate portion 22 and the connection plate portion 23 are located on both sides of the base plate portion 22, and the pair of side plate portions 25, extending in the vertical direction, 26 and the bottom plate portion 27 arranged at a position facing the base plate portion 22 in the box-shaped body 28. The pair of side plate portions 25, 26 and the bottom plate portion 27 are fixed to each other, and both are fixed to the connection plate portion 23.

Inside (inside) the box-shaped body 28, first ribs 29 and 30 extending in a direction intersecting the extension direction of the base plate portion 22 are provided. In the present embodiment, as shown in FIGS. 2 and 4, the first ribs extending in the directions orthogonal to the base plate portion 22 at the tip and intermediate positions (positions between the tips and base ends) of the box-shaped body 28, respectively. 29 and 30 are attached. Each of the first ribs 29 and 30 has a rectangular plate shape, and in the present embodiment, the first ribs 29 and 30 are fixed to the plate portions 22, 25 to 27 constituting the box-shaped body 28 except for the connection plate portion 23.

Further, inside the box-shaped body 28, second ribs 31 and 32 extending in a direction along the extension direction of the base plate portion 22 are provided. In the present embodiment, as shown in FIGS. 3 and 4, the second ribs 31 and 32 are provided over the entire longitudinal direction of the box-shaped body 28. These second ribs 31 and 32 are fixed to the base plate portion 22 and the bottom plate portion 27 located above and below the ribs 31 and 32. Further, the second ribs 31 and 32 are in a divided state because the first rib 30 is arranged at an intermediate position of the box-shaped body 28.

Further, in the present embodiment, at least a part of the plurality of plate portions 22, 23, 25 to 27 constituting the box-shaped body 28 are fixed to each other by welding. In the present embodiment, as shown in FIGS. 2 and 3, a welded portion 33 is formed between the base plate portion 22 and the side plate portions 25 and 26 (corner portions). Welded portions 33 are also formed between the bottom plate portions 27 and the side plate portions 25 and 26 (corners). Further, a welded portion 33 is also formed between the base plate portion 22, the side plate portions 25, 26, the bottom plate portion 27, and the connecting plate portion 23. In the present embodiment, the tip side 27a of the bottom plate portion 27 has a structure divided from the remaining portion 27b, and only the remaining portion 27b forms a welded portion 33 between the side plate portions 25 and 26. There is. Although not shown, the tip end side 27a is detachably fixed to the side plate portions 25 and 26 and the second ribs 31 and 32 by means such as bolt fastening.

As shown in FIGS. 2 and 4, the first rib 30 provided at an intermediate position of the box-shaped body 28 forms a welded portion 33 with the base plate portion 22. On the other hand, no welded portion is formed between the first rib 29 provided at the tip of the box-shaped body 28 and the plurality of plate portions 22, 25 to 27 adjacent to the first rib 29. For example, although not shown, the first rib 29 is detachably fixed to at least a part of a plurality of adjacent plate portions 22, 25 to 27 by means such as bolt fastening.

As shown in FIGS. 2 to 4, the second ribs 31 and 32 provided inside the box-shaped body 28 both form a welded portion 33 between the base plate portion 22 and the side plate portions 25 and 26. doing. In addition, these second ribs 31 and 32 form welded portions 33 between the connecting plate portion 23 and the first rib 30, respectively.

Further, in the present embodiment, the base plate portion 22 is provided with an intermediate support member 34 that supports the intermediate position of the spindle head 15b (see FIG. 2). The intermediate support member 34 has, for example, a divided structure, and is divided into two divided bodies 35 and 36 in the present embodiment (see FIG. 5). These divided bodies 35 and 36 clamp the spindle head 15b in a state of being housed in the inner circumference by tightening the bolt 37 at an intermediate position in the axial direction thereof. When the normal directions of the divided surfaces 35a and 36a of the divided bodies 35 and 36 coincide with the clamping directions of the spindle head 15b, the normal directions of the divided surfaces 35a and 36a and the grindstone 13 (14) and the glass plate The contact directions of 1 with the end surface 2 are matched. This direction corresponds to the X direction in the present embodiment. The inner diameter of the inner peripheral surface 34a of the intermediate support member 34 may be the same as the outer diameter of the outer peripheral surface 15d of the spindle head 15b to be supported at the intermediate position in the axial direction, but a constant clamp state is stable. As shown in FIG. 5, it may be set to be slightly larger than the outer diameter dimension of the axially intermediate position of the outer peripheral surface 15d for the purpose of realistically reproducing. In addition, in order to facilitate understanding of the drawing, the spindle 15a is not shown in FIG.

Further, in the present embodiment, the main purpose of the glass plate 1 is to perform two types of processing (grinding processing whose main purpose is chamfering the end surface 2 and smoothing of minute irregularities on the end surface 2). Grinding stones 13 and 14 corresponding to each of the grindstones 13 and 14 can be used for performing the polishing process). That is, the particle size of the abrasive grains in the second grindstone 14 for polishing is the same as or larger than the particle size of the abrasive grains in the first grindstone 13 for grinding. The particle size of the abrasive grains in the first grindstone 13 for grinding can be, for example, # 100 to # 1000, and the particle size of the abrasive grains in the second grindstone 14 for polishing can be, for example, # 200 to # 1000. be able to. The diameters of the grindstones 13 and 14 are, for example, 100 to 200 mm.

Two of these grindstones 13 (14) are one set, and as shown in FIG. 1, one set or a plurality of sets of grindstones 13 (14) are arranged at positions facing each other with the glass plate 1 interposed therebetween. In FIG. 1, a set of first grindstones 13 and 13 for grinding and a set of second grindstones 14 and 14 for polishing are arranged. In this case, a total of two sets (four in total) of end face processing machines 12 having each grindstone 13 (14) are arranged. The end face processing machines 12 arranged along the feed direction F are configured by the same slide base 19a as the first slide mechanism 19, in other words, the slide base 19a is shared.

The glass plate 1 to be processed by the end face processing apparatus 10 has a rectangular plate shape, for example, as shown in FIG. The thickness dimension of the glass plate 1 is preferably, for example, 0.05 mm to 10 mm, more preferably 0.2 mm to 0.7 mm. Of course, the glass plate 1 to which the present invention can be applied is not limited to the above form. For example, the present invention can be applied to a glass plate having a shape other than a rectangle (for example, a polygon) or a glass plate having a thickness dimension of more than 0.05 mm to 10 mm.

The glass plate 1 can move relative to the grindstones 13 and 14 along the feed direction F. Note that FIG. 1 shows a case where the grindstones 13 and 14 move along the feed direction F and the glass plate 1 is fixed at a predetermined position, but of course, the grindstones 13 and 14 are not moved. The glass plate 1 may be relatively moved by transporting or moving the surface plate 11. Further, both the glass plate 1 and the grindstones 13 and 14 may be moved so as to be relatively moved.

The rotation direction of the grindstones 13 and 14 is arbitrary, but it is preferable to determine the rotation direction of the grindstones 13 and 14 so as to oppose (resist) the relative movement of the glass plate 1 and the grindstones 13 and 14, for example. .. In FIG. 1, it is preferable to determine the rotation direction of the grindstones 13 and 14 so that the upper grindstones 13 and 14 are clockwise and the lower grindstones 13 and 14 are counterclockwise.

An example of end face processing on the end face 2 of the glass plate 1 using the end face processing device 10 of the above configuration (first embodiment) will be described.

First, the glass plate 1 is carried on the surface plate 11 and placed on the surface plate 11, and the glass plate 1 is fixed to the surface plate 11 by suction or the like. Subsequently, the moving devices 18 move the grindstones 13 and 14 along the Y direction to position the grindstones 13 and 14 outside the glass plate 1 beyond the processing start position 2a of the glass plate 1. The moving device 18 moves the grindstones 13 and 14 along the X direction to move the grindstones 13 and 14 to a position where the desired depth of cut is obtained. At that time, the grindstones 13 and 14 are rotated at a desired rotation speed at an appropriate timing. In this state, the moving devices 18 move the grindstones 13 and 14 in the feed direction F, and move the grindstones 13 and 14 beyond the processing end position 2b of the glass plate 1 to the outside of the glass plate 1. As a result, a predetermined process on the end face 2 is performed over the entire longitudinal direction thereof. In the present embodiment, the end face 2 is first ground by the grindstone 13, and then the end face 2 is ground by the grindstone 14.

The glass plate 1 provided for the end face processing is cut out from the glass original plate by performing precision cutting such as folding on the glass original plate formed from molten glass by a known molding means such as a down draw method. Then, after the end face processing is performed, it is washed, inspected, packed, and shipped.

As described above, according to the end face processing method and the end face processing apparatus 10 according to the present invention, a plurality of plate portions 22, 23, 25 to 27 including the base plate portion 22 and the connection plate portion 23 are formed from the connection plate portion 23. A box-shaped body 28 extending in the horizontal direction is formed (see FIGS. 2 and 3). Thereby, the strength of the support member 17 can be increased. Further, in the end face processing method according to the present invention, first ribs 29 and 30 extending in a direction intersecting the extension direction (here, the vertical direction) of the base plate portion 22 are provided inside the box-shaped body 28 (FIGS. 2 and 2). See FIG. 4). As a result, the first ribs 29 and 30 receive a load for deforming the box-shaped body 28 so that the cross-sectional shape (shape shown in FIG. 3) of the box-shaped body 28 becomes a parallelogram, and the above-mentioned deformation It is possible to increase the resistance to. Therefore, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

Further, in the present embodiment, since the plurality of plate portions 22, 23, 25 to 27 forming the box-shaped body 28 are fixed to each other by welding (see reference numerals 33 in FIGS. 2 to 4), for example, the plate portions. A joint portion (welded portion 33) by welding can be continuously formed along a corner portion generated by contact between 22, 23, 25 to 27. As a result, the joining area can be increased as compared with, for example, bolt fastening, so that the joining strength between the plate portions 22, 23, 25 to 27 can be increased by that amount to further improve the strength of the box-shaped body 28. Is possible. Further, in the present embodiment, the first rib 29 that closes the tip of the box-shaped body 28 and the tip side 27a of the bottom plate portion 27 are fixed by means other than welding (detachable fixing means such as bolt fastening). Therefore, accessibility from below to the tip end side of the base plate portion 22 is ensured. Therefore, there is no concern that the workability of attaching the grindstone 13 (14), the spindle head 15b, and the drive motor 16 to the base plate portion 22 will be hindered by welding.

Further, in the present embodiment, the first ribs 29 and 30 extending in a direction intersecting the extension direction of the base plate portion 22 are provided at the tip and intermediate positions of the box-shaped body 28 and along the extension direction of the base plate portion 22. Second ribs 31 and 32 extending in the direction are provided inside the box-shaped body 28. This makes it possible to further reinforce the box-shaped body 28 and suppress vibration more effectively.

Further, in the present embodiment, the axial end portion 15c of the spindle head 15b is mounted on the base plate portion 22, and the axial intermediate portion of the spindle head 15b is supported by the intermediate support member 34. Thereby, the spindle head 15b can be reinforced by the intermediate support member 34, and the vibration generated at the time of processing the end face of the glass plate can be suppressed. As a result, it is possible to improve the accuracy of end face processing.

Although the first embodiment of the present invention has been described above, of course, the end face processing method and the end face processing apparatus of the glass plate according to the present invention are not limited to this embodiment. The processing method and processing apparatus can take various forms within the scope of the present invention.

For example, in the above embodiment, the support member 17 directly supports the spindle head 15b. In the present invention, the support member 17 may indirectly support the spindle head 15b. An example thereof (second embodiment of the present invention) will be described below.

Similar to the first embodiment, the end face processing apparatus 50 according to the second embodiment of the present invention includes a surface plate 11 for holding the glass plate 1 and an end face processing machine 51 (see FIG. 6). Similar to the first embodiment, the end face processing machine 51 includes a spindle 15a on which the grindstone 13 (14) is mounted on the upper end, a spindle head 15b that rotatably supports the spindle 15a, and a drive motor that drives the rotation of the spindle 15a. A 16 and a support member 17 for supporting the spindle head 15b, and a moving device 18 for moving the support member 17 with respect to the glass plate 1 are provided. In the end face processing machine 51 of the second embodiment, unlike the first embodiment, the support member 17 supports the spindle head 15b via the arm member 52. The arm member 52 is swingably supported by a support shaft member 53. Such an end face processing machine 51 buffers the pressing force generating device 54 that applies a force for pressing the grindstone 13 (14) against the end surface 2 of the glass plate 1 to the arm member 52 and the impact force acting on the grindstone 13 (14). A shock absorber 55 is further provided.

Here, the support shaft member 53 that swingably supports the arm member 52 is erected on the base plate portion 22 as shown in FIG. 7. Therefore, the spindle head 15b is indirectly supported by the base plate portion 22 via the arm member 52. A spindle head 15b is attached to one end of the arm member 52, and a drive motor 16 is attached to the other end of the arm member 52. Further, in the present embodiment, the intermediate support member 34 is attached to the arm member 52, whereby the intermediate position of the spindle head 15b also attached to the arm member 52 can be supported.

The pressing force generator 54 can be configured by, for example, an air cylinder. One end of the push pressure generator 54 is rotatably connected to the base plate portion 22 via a joint, and the other end of the push pressure generator 54 is connected to the support portion of the spindle head 15b in the arm member 52. It is rotatably connected between the support shaft members 53 via a joint. For example, in the upper end face processing machine 51 of FIG. 6, if the pressing force generator 54 is operated so as to extend, the arm member 52 swings clockwise and the grindstone 13 (14) moves to the end face of the glass plate 1. Is pressed against.

The shock absorber 55 functions as a damper and can be configured by, for example, a dashpot. One end of the shock absorber 55 is rotatably connected to the base plate portion 22 via a joint, and the other end of the shock absorber 55 is a support portion of the spindle head 15b and a support shaft member 53 among the arm members 52. It is connected in a rotatable state via a joint between them.

The configuration of the support member 17, the moving device 18, and the intermediate support member 34 is the same as that of the first embodiment except for the contents described above.

The end face processing on the end face 2 of the glass plate 1 using the end face processing device 50 of the above configuration (second embodiment) is, for example, the end face processing on the end face 2 of the glass plate 1 using the end face processing device 10 of the first embodiment. The procedure can be the same as that of one example. According to the end face processing device 50 of the second embodiment, the grindstone 13 (14) can be pressed against the end surface 2 of the glass plate 1 with a desired pressing force by the first pressing force generating device 54. Further, the shock absorber 55 can buffer the impact force acting on the grindstone 13 (14). Therefore, it is possible to prevent the grindstone 13 (14) from separating from the end surface 2 of the glass plate 1 due to the impact force, and it is possible to improve the quality of the end surface 2 of the glass plate 1.

Further, the support member 17 of the present embodiment indirectly supports the spindle head 15b via the arm member 52, but is formed by a plurality of plate portions 22, 23, 25 to 27 including the base plate portion 22 and the connection plate portion 23. , A box-shaped body 28 extending in the horizontal direction from the connection plate portion 23 is formed (see FIGS. 3 and 7). Thereby, the strength of the base plate portion 22 can be increased. Further, since the first ribs 29 and 30 extending in the direction intersecting the extension direction (vertical direction) of the base plate portion 22 are provided inside the box-shaped body 28 (see FIG. 7), the box-shaped body 28 is provided. The first ribs 29 and 30 receive a load for deforming the box-shaped body 28 so that the cross-sectional shape (shape shown in FIG. 3) of the box is parallelogram, and the resistance to the deformation can be increased. It becomes. Therefore, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the accuracy of the end face processing.

In this embodiment, a case where a plurality of plate portions 22, 23, 25 to 27 constituting the box-shaped body 28 of the support member 17 are fixed to each other by means other than welding (bolt fastening or the like) is illustrated. (See FIG. 7) Considering that access to the inside of the box-shaped body 28 is not required, for example, all of these plurality of plate portions 22, 23, 25 to 27 may be fixed to each other by welding. Furthermore, these plurality of plate portions 22, 23, 25 to 27 and the first and second ribs 29 to 32 may all be fixed to each other by welding. Of course, as the fixing means between these plurality of plate portions 22, 23, 25 to 27 and the first and second ribs 29 to 32, means other than welding and bolt fastening (for example, brazing) should be applied. Is also possible.

Further, regarding the structure of the support member 17, in the above embodiment, when the first ribs 29 and 30 having a rectangular plate shape are provided inside the box-shaped body 28 in a form conforming to the cross-sectional shape of the box-shaped body 28. (See FIGS. 2 to 4), but of course, other forms may be used. For example, FIG. 8 shows the structure of the support member 117 according to an example thereof (third embodiment of the present invention), and the support member 117 has a substantially triangular plate shape inside a box-shaped body 128 having a rectangular cross section. A plurality of first ribs 130 are provided. These plurality of first ribs 130 are attached to the corners between the plurality of plate portions 22, 25 to 27 adjacent to each other, whereby the right angles between the plurality of plate portions 22, 25 to 27 adjacent to each other are attached. The tangent angle is maintained at a right angle. In other words, it is possible to suppress the deformation of the box-shaped body 128 of the above type. In this case, for example, a welded portion 33 is formed between each of the first ribs 130 and the plurality of plate portions 22, 25 to 27, respectively.

FIG. 9 shows the structure of the support member 217 according to still another embodiment of the present invention (fourth embodiment of the present invention). The support member 217 is provided with a plurality of first ribs 230 having a columnar shape inside a box-shaped body 228 having a rectangular cross section. The plurality of first ribs 230 are attached so as to straddle the corners between the plurality of plate portions 22, 25 to 27 adjacent to each other, and more specifically, the corners facing each other as shown in FIG. Has been done. As a result, the contact angles between the plurality of plate portions 22, 25 to 27 adjacent to each other are maintained at right angles, and the deformation of the box-shaped body 228 of the above type can be suppressed. In this case as well, welded portions 33 are formed between each of the first ribs 230 and the plurality of plate portions 22, 25 to 27, respectively.

Of course, in the above embodiment, as the support members 17, 117, 217, those provided with the box-shaped bodies 28, 128, 228 having a rectangular cross section are illustrated, but the form of the box-shaped bodies 28, 128, 228 is included in this. Is not limited. Box-shaped bodies 28, 128, and 228 may be formed so as to have a cross section having a polygonal shape other than a rectangle, for example, a triangular cross section.

Further, in the above embodiment, the case where the box-shaped bodies 28, 128, 228 and the base plate portion 22 extend in the horizontal direction is illustrated, but it is not always necessary to extend in this direction. For example, it may be a support member having a form in which the box-shaped bodies 28, 128, 228 and the base plate portion 22 extend diagonally upward.

Further, in the above embodiment, the case where the spindle 15a and the rotation shaft 16b of the drive motor 16 are connected in a horizontally displaced state is illustrated, but of course, if there is no problem in terms of space, the spindle 15a and the drive motor 16 are driven. It is also possible to arrange the rotating shaft 16b of the motor 16 coaxially.

In the present invention, a method in which the support member 17 directly supports the spindle head 15b (hereinafter, also referred to as "fixed type") and a method in which the support member 17 indirectly supports the spindle head 15b (hereinafter, "constant pressure type"). May be combined with). For example, when four sets of end face processing machines equipped with grindstones 13 (14) are arranged, two sets of end face processing machines of the first set facing each other across the glass plate 1 are fixed, and the end face processing machines of the second to fourth sets are fixed. May be a constant pressure type. In this case, the grinding wheel for grinding is attached to the first set of end face processing machines, and the grinding wheel for polishing is attached to the end face processing machines of the second to fourth sets. Here, the first set of end face processing machines means a set of end face processing machines that first processes the end face of the glass plate among the four sets of end face processing machines.

Further, in the above description, a case where a predetermined process (grinding process and polishing process) is performed on the end surface 2 of the glass plate 1 by contact with the grindstone 13 (14) has been illustrated, but the present invention uses other tools. Of course, it can also be applied when the end face 2 is processed.

1 Glass plate 2 End face 10, 50 End face processing device 11 Surface plate 12, 51 End face processing machine 13, 14 Each grindstone 15a Spindle 15b Spindle head 15c Axial end 15d Outer surface 16 Drive motor 17, 117, 217 Support member 18 movement Device 19 1st slide mechanism 20 2nd slide mechanism 21 3rd slide mechanism 22 Base plate part 23 Connection plate part 24 Belt 25, 26 Side plate part 27 Bottom plate part 28,128,228 Box-shaped body 29,30,130,230 First rib 31, 32 Second rib 33 Welded portion 34 Intermediate support member 35, 36 Split body 37 Bolt 52 Arm member 53 Support shaft member 54 Pushing pressure generator 55 Buffering device 56 Link mechanism F Feeding direction

Claims (7)

In the glass plate end face processing method in which a predetermined processing is performed on the end face by bringing the tool provided in the end face processing apparatus into contact with the end face of the glass plate while rotating.
The end face processing device moves the spindle on which the tool is mounted, the spindle head that rotatably supports the spindle, the support member that supports the spindle head, and the support member with respect to the glass plate. Equipped with equipment,
The support member has a connection plate portion that connects to the moving device, and a base plate portion that extends from the connection plate portion in a predetermined direction and to which the spindle head is directly or indirectly attached.
The connection plate portion and the base plate portion form a box-like body together with a plurality of plate portions.
A method for processing an end face of a glass plate, wherein the box-shaped body has a first rib extending in a direction intersecting the extension direction of the base plate portion inside the box-shaped body. The end face processing method for a glass plate according to claim 1, wherein at least a part of the connection plate portion and the plurality of plate portions including the base plate portion are fixed to each other by welding. The method for processing an end face of a glass plate according to claim 1 or 2, wherein the first rib is provided at the tip of the box-shaped body. The box-shaped body has a plurality of the first ribs and has a plurality of the first ribs.
The method for processing an end face of a glass plate according to claim 1 or 2, wherein the first rib is provided at the tip of the box-shaped body and an intermediate position between the box-shaped body. The method for processing an end face of a glass plate according to any one of claims 1 to 4, wherein the box-shaped body has a second rib extending in a direction along the extension direction of the base plate portion inside the box-shaped body. The tool is a grindstone
The spindle head is arranged on the tip end side of the base plate portion.
The method for processing an end face of a glass plate according to any one of claims 1 to 5, wherein the base plate portion extends in the horizontal direction. In a glass plate end face processing device that performs a predetermined process on the end face of a glass plate with a rotating tool.
The end face processing device moves the spindle on which the tool is mounted, the spindle head that rotatably supports the spindle, the support member that supports the spindle head, and the support member with respect to the glass plate. Equipped with equipment,
The support member has a connection plate portion that connects to the moving device, and a base plate portion that extends from the connection plate portion in a predetermined direction and to which the spindle head is directly or indirectly attached.
The connection plate portion and the base plate portion form a box-like body together with a plurality of plate portions.
An end face processing device for a glass plate, wherein the box-shaped body has a first rib extending in a direction intersecting the extension direction of the base plate portion inside the box-shaped body.

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