JP2019042890A - Glass plate end surface processing method and end surface processing device - Google Patents

Abstract

To inhibit vibration occurring during glass plate end surface processing to improve accuracy of the end surface processing.SOLUTION: In a glass plate end surface processing method according to the invention, a tool 13 (14) provided at an end surface processing device 10 is placed in contact with an end surface 2 of a glass plate 1 while being rotated to perform predetermined processing to the end surface 2. The end surface processing device 10 includes: a spindle 15a to which the tool 13 (14) is attached; a spindle head 15b which rotatably supports the spindle 15a; and a head attachment member 22 to which one axial end part 15c of the spindle head 15b is attached. An axial intermediate part of the spindle 15b is supported by an intermediate support member 34.SELECTED DRAWING: Figure 2

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, when manufacturing a glass substrate, one or more glass substrates are cut out from a large glass original plate (molded original plate) for the purpose of improving production efficiency. Thereby, the glass substrate of a desired dimension can be acquired.

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

International Publication WO2013 / 187400 JP2011-168444

  As described above, when the grindstone is adjusted to a predetermined position, the grindstone is mounted on the spindle, and the spindle is rotatably supported by the spindle head. The spindle head is attached to the slide mechanism via a predetermined jig (see, for example, FIG. 2 of Patent Document 2). In this case, a spindle head is attached to one end of the jig, and a slide mechanism is connected to the other end of the jig. For this reason, the spindle head is cantilevered via the jig. In the case of such a structure, vibration of a level that cannot be ignored during the end face processing of the glass plate is likely to occur. In order to improve the accuracy of end face processing, it is necessary to suppress this kind of vibration.

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

  The solution to the above problem is achieved by the method for processing an end face of a glass plate according to the present invention. That is, this end face processing method is a glass plate end face processing method in which a tool provided in the end face processing apparatus is rotated and brought into contact with the end face of the glass plate to perform predetermined processing on the end face. A spindle to be mounted, a spindle head that rotatably supports the spindle, and a head mounting member to which one end of the spindle head in the axial direction is mounted, and an axially intermediate portion of the spindle head is supported by the intermediate support member It is characterized by

  As described above, in the end face machining method according to the present invention, one end of the spindle head in the axial direction is mounted on the head mounting member, and the intermediate portion in the axial direction of the spindle head is supported by the intermediate support member. It can support and can suppress the vibration which arises at the time of end face processing of a glass plate, As a result, it becomes possible to improve the accuracy of end face processing.

  In the method for processing an end face of a glass plate according to the present invention, the intermediate support member is composed of a plurality of divided bodies, and the plurality of divided bodies are connected to each other so that the inner surface of the intermediate support member is brought into contact with the spindle head. The spindle head may be clamped.

  In this way, the intermediate support member is constituted by a plurality of divided bodies, and the spindle heads can be supported more firmly by clamping the spindle head by connecting the divided bodies to each other. Therefore, the vibration which arises at the time of the end surface processing of a glass plate can further be suppressed. Therefore, it is possible to further improve the processing accuracy of the end face.

  In the glass plate end surface processing method according to the present invention, each divided body is formed separately from the head mounting member, one end of each divided body is attached to the head mounting member, and a plurality of divided bodies are attached to each other. The spindle head may be clamped by fastening with a bolt.

  By forming each divided body separately from the head mounting member in this way, the spindle head can be first mounted on the head mounting member, and the spindle can be clamped with each divided body mounted on the head mounting member. . As a result, the mountability of the spindle head and the intermediate support member is enhanced, and the clamping force of the spindle head by each divided body can be easily adjusted.

  In the method for processing an end face of a glass plate according to the present invention, the intermediate support member is divided into two parts, and the spindle head is clamped by connecting the two divided parts to each other. You may make a tool contact the end surface of a glass plate in the state which matched the direction of the normal line of the division surface formed in each division body by dividing | segmenting into the cutting direction of a tool.

  In this way, when the spindle head is clamped by dividing the intermediate support member into two parts, the normal direction of the divided surface formed on each divided body by the division is matched with the cutting direction of the tool, A tool should be brought into contact with the end face. Here, in the end face processing of the glass plate, the vibration component in the cutting direction of the tool greatly affects the accuracy of the end face processing. If the direction of the normal of the dividing surface is matched with the cutting direction of the tool, the vibration component in the cutting direction of the tool can be effectively reduced, and the accuracy of end face processing can be further improved.

  Moreover, in the end surface processing method of the glass plate which concerns on this invention, it is good also considering the cross-sectional shape of the inner surface of an intermediate | middle support member as circular shape or a rectangular shape.

  Moreover, the solution of the said subject is achieved also by the end surface processing apparatus of the glass plate which concerns on this invention. That is, this end face processing apparatus includes a spindle on which a tool is mounted, a spindle head that rotatably supports the spindle, and a spindle in a glass plate end face processing apparatus that performs predetermined processing on the end face of the glass plate with a rotating tool. And a head mounting member to which one end of the head in the axial direction is mounted, and is characterized in that the intermediate portion in the axial direction of the spindle head is supported by the intermediate support member.

  As described above, in the end face machining apparatus according to the present invention, one end of the spindle head in the axial direction is mounted on the head mounting member, and the intermediate portion of the spindle head in the axial direction is supported by the intermediate support member. For this reason, a spindle head can be supported firmly and the vibration which arises at the time of the end surface processing of a glass plate can be suppressed. As a result, it is possible to improve the accuracy of 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 surface processing apparatus of the glass plate which concerns on 1st embodiment of this invention. It is a partial cross section side view of the end surface processing machine shown in FIG. It is AA sectional drawing of the end surface processing machine shown in FIG. It is BB sectional drawing of the end surface processing machine shown in FIG. It is CC sectional drawing of the end surface processing machine shown in FIG. It is a schematic plan view of the end surface processing apparatus of the glass plate which concerns on 2nd embodiment of this invention. It is principal part DD sectional drawing of the end surface processing machine shown in FIG. It is principal part CC sectional drawing of the end surface processing apparatus of the glass plate which concerns on 3rd embodiment of this invention.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In all of the embodiments described below, the case where the end surface of the glass substrate is processed with a grindstone will be described as an example.

  As shown in FIG. 1, an end surface processing apparatus 10 according to the first embodiment of the present invention is for performing predetermined processing on an end surface 2 of a glass plate 1, and a surface plate 11 that holds the glass plate 1, And an end face processing machine 12 disposed on both sides of the glass plate 1 held by the surface plate 11.

  The end face processing machine 12 is for contacting the end face 2 of the glass plate 1 while rotating the grindstone 13 (14). As shown in FIGS. 1 and 2, the spindle 15a to which the grindstone 13 (14) is mounted. 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 the support member 17 with respect to the glass plate 1. And a moving device 18 to be moved. In this case, the grindstone 13 (14) corresponds to a tool.

  In this embodiment, as shown in FIG. 1, the moving device 18 includes a first slide mechanism 19 that slides the grindstone 13 (14) in a direction along the feed direction F (hereinafter referred to as Y direction), and a grindstone. 13 (14) and a second slide mechanism 20 that slides 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 (hereinafter referred to as the Z direction) orthogonal to both the feed direction F and the cutting direction. 21 is further included.

  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). 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 (see FIG. 2). reference). The moving device 18 moves the support member 17 so that the grindstone 13 (14) can be moved to an arbitrary position.

  As shown in FIG. 2, the support member 17 includes a base plate portion 22 that supports the grindstone 13 (14) and the spindle head 15 b, and a connection plate portion 23 that is connected to the moving device 18. In the present embodiment, the connection plate portion 23 is fixed to the slide member 21 b 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 cantilever supported 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 distal end side (the side far from the connection plate portion 23) of the base plate portion 22, and the drive motor 16 One axial end portion (flange portion) 16a is attached. Further, holes 22a and 22b are formed in the base plate portion 22, and a spindle 15a that is rotatably held by the spindle head 15b and a 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 coupled to each other below the base plate portion 22 via a belt 24, so that the rotational driving force generated by the driving motor 16 can be transmitted to the spindle 15a. In this case, the base plate portion 22 corresponds to the head mounting member in the present invention.

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

  On the inner side (inside) of the box-shaped body 28, first ribs 29 and 30 are provided that extend in a direction intersecting with the extending direction of the base plate portion 22. In the present embodiment, as shown in FIGS. 2 and 4, the first ribs extending in the direction orthogonal to the base plate portion 22 at the distal end and the intermediate position (position between the distal end and the proximal end) 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 is fixed to the plate portions 22 and 25 to 27 constituting the box-shaped body 28 excluding the connection plate portion 23 in the present embodiment.

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

  Moreover, in this embodiment, at least one part of the some plate parts 22,23,25-27 which comprises the box-shaped body 28 is being mutually fixed by welding. In this 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). A welded portion 33 is also formed between the bottom plate portion 27 and the side plate portions 25 and 26 (corner portions). A welded portion 33 is also formed between the base plate portion 22, the side plate portions 25 and 26, the bottom plate portion 27, and the connection plate portion 23. In the present embodiment, the tip side 27a of the bottom plate portion 27 is 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. Yes. Although not shown, for example, the distal 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 the intermediate position of the box-shaped body 28 forms a welded portion 33 between the base plate portion 22 and the side plate portions 25 and 26. Yes. 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 the plurality of adjacent plate portions 22 and 25 to 27 by means such as bolt fastening.

  As shown in FIGS. 2 to 4, both the second ribs 31 and 32 provided inside the box-shaped body 28 form a welded portion 33 with the base plate portion 22. In addition, the second ribs 31 and 32 also form welds 33 between the connection plate portion 23 and the first rib 30.

  The base plate portion 22 is provided with an intermediate support member 34 that supports an 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 this embodiment (see FIG. 5). These divided bodies 35, 36 clamp the spindle head 15 b accommodated in the inner periphery by tightening bolts 37 at the intermediate position in the axial direction. Further, when the direction of the normal line of the divided surfaces 35a, 36a of each divided body 35, 36 coincides with the clamping direction of the spindle head 15b (the axial direction of the bolt 37), the direction of the normal line of these divided surfaces 35a, 36a The cutting direction of the grindstone 13 (14) (the direction in which the grindstone 13 (14) is pressed against the glass plate) is matched. This direction corresponds to the X direction in this embodiment. The cross section of the inner surface 34a of the intermediate support member 34 is circular. The inner diameter of the inner surface may be the same as the outer diameter at the axially intermediate position of the outer peripheral surface 15d of the spindle head 15b to be supported, but for the purpose of stably reproducing a fixed clamping state, FIG. As shown in FIG. 5, the outer diameter may be set slightly larger than the outer diameter of the intermediate position in the axial direction of the outer peripheral surface 15d. The fixing means between the intermediate support member 34 and the base plate portion 22 is arbitrary, but when considering the clamping of the spindle head 15b attached to the base plate portion 22, the intermediate support member 34 is detachable by bolt fastening or the like, for example. It is good to fix to the baseplate part 22 with a proper fixing means. In order to facilitate understanding of the drawing, the illustration of the spindle 15a is omitted in FIG.

  In the present embodiment, the end surface 2 of the glass plate 1 is mainly processed by two types of processing (grinding processing mainly for chamfering the end surface 2 and fine unevenness of the end surface 2. In order to perform (polishing), the grindstones 13 and 14 corresponding to each can be used. That is, the grain size of the abrasive grains in the second grinding wheel 14 for polishing is the same as or larger than that of the abrasive grains in the first grinding wheel 13 for grinding. The grain size of the abrasive grains in the first grinding wheel 13 for grinding can be set to, for example, # 100 to # 1000, and the grain size of abrasive grains in the second grinding wheel 14 for polishing, for example, to # 200 to # 1000. be able to. Moreover, the diameter of the grindstones 13 and 14 is 100-200 mm, for example.

  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 grinding wheels 13 and 13 for grinding and a set of second grinding wheels 14 and 14 for polishing are arranged. In this case, a total of two sets (four in total) of end face processing machines 12 each having the grindstone 13 (14) are arranged. In the end face processing machines 12 arranged along the feed direction F, the first slide mechanism 19 is configured by the same slide base 19a, 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 as shown in FIG. 1, for example. The thickness dimension of the glass plate 1 is preferably 0.05 mm to 10 mm, for example, and more preferably 0.2 mm to 0.7 mm. Of course, the glass plate 1 which can apply this invention is not limited to the said form. For example, the present invention can also 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 that deviates from 0.05 mm to 10 mm.

  The glass plate 1 can move relative to the grindstones 13 and 14 along the feed direction F (Y direction). In addition, in FIG. 1, although the grindstones 13 and 14 move along the feed direction F and the glass plate 1 is shown fixed to a predetermined position, of course, without moving the grindstones 13 and 14, The glass plate 1 may be moved relatively by conveying or moving the surface plate 11. Moreover, you may move relatively by moving both the glass plate 1 and the grindstones 13 and 14.

  Moreover, although the rotation direction of the grindstones 13 and 14 is arbitrary, it is good to determine the rotation direction of each grindstone 13 and 14 so that it may rotate in the direction facing the feed direction F, for example. In FIG. 1, it is preferable to determine the rotation direction of each of the grindstones 13 and 14 so that the upper grindstones 13 and 14 are counterclockwise and the lower grindstones 13 and 14 are clockwise.

  An example of the end face processing for the end face 2 of the glass plate 1 using the end face processing apparatus 10 having the above-described configuration (first embodiment) will be described.

  First, the glass plate 1 is carried on 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 grindstones 13 and 14 are moved along the Y direction by the moving device 18 so as to be positioned outside the glass plate 1 beyond the processing start position 2 a of the glass plate 1. The grindstones 13 and 14 are moved along the X direction by the moving device 18 and moved to a position where a desired cutting amount is obtained. At that time, the grindstones 13 and 14 are rotated at a desired rotational speed at an appropriate timing. In this state, the grindstones 13 and 14 are moved in the feed direction F by the moving device 18 and moved beyond the processing end position 2 b of the glass plate 1 to the outside of the glass plate 1. Thereby, the predetermined process with respect to the end surface 2 is given over the whole longitudinal direction. In the present embodiment, first, grinding with the grindstone 13 is performed on the end surface 2, and then polishing with the grindstone 14 is performed on the end surface 2.

  In addition, the glass plate 1 provided for the said end surface processing is cut out from a glass original plate by giving precision cutting, such as a split, to the glass original plate shape | molded from molten glass by well-known shaping | molding means, such as a down draw method, for example. And after the said end surface processing is given, it leads to packing and shipment through washing | cleaning and an inspection.

  As described above, according to the end surface processing method and the end surface processing apparatus 10 according to the present invention, the one axial end portion 15c of the spindle head 15b is mounted on the base plate portion 22 as a head mounting member, and the shaft of the spindle head 15b is mounted. The intermediate portion in the direction is supported by the intermediate support member 34. For this reason, the spindle head 15b can be supported firmly and the vibration which arises at the time of the end surface processing of a glass plate can be suppressed. As a result, it is possible to improve the accuracy of end face processing.

  In the present embodiment, the intermediate support member 34 is composed of a plurality of divided bodies 35, 36, and the spindle head 15b is clamped by connecting the divided bodies 35, 36 to each other. Thereby, the spindle head 15b can be supported more firmly. Therefore, the vibration which arises at the time of the end surface processing of a glass plate can further be suppressed. Therefore, the processing accuracy of the end face 2 can be further improved.

  Further, in the present embodiment, when the intermediate support member 34 is divided into two and the spindle head 15b is clamped, the direction of the normal line of the divided surfaces 35a and 36a formed on the divided bodies 35 and 36 by the division is determined by the grindstone 13. The grindstone 13 (14) was brought into contact with the end surface 2 of the glass plate 1 in a state matched with the cutting direction of (14) (see FIGS. 1 and 5). Since the vibration tends to be maximized in the direction orthogonal to the end surface 2, that is, the direction in which the grindstone 13 (14) receives the reaction force from the end surface 2, the normal direction of the divided surfaces 35a and 36a is set as described above. By bringing the grindstone 13 (14) into contact with the end surface 2 in the combined state, the vibration can be more effectively suppressed. Here, at the time of end face processing, the vibration component in the cutting direction of the grindstone 13 (14) greatly affects the accuracy of the end face processing. If the direction of the normal line of the divided surfaces 35a and 36a is matched with the cutting direction of the tool, the vibration component in the cutting direction of the grindstone 13 (14) can be effectively reduced, and the accuracy of the end face machining can be further improved. it can.

  Further, in the present embodiment, a plurality of plate parts 22, 23, 25 to 27 including the base plate part 22 and the connection plate part 23 form a box-like body 28 extending in the horizontal direction from the connection plate part 23 (see FIG. 2 and FIG. 2). (See FIG. 3). Thereby, the strength of the support member 17 can be increased. In the end face processing method according to the present invention, the first ribs 29 and 30 extending in the direction intersecting with the extending direction of the base plate portion 22 (here, the vertical direction) are provided inside the box-shaped body 28 (see FIG. 2 and FIG. 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 of the box-shaped body 28 (the shape shown in FIG. 3) becomes a parallelogram, and the deformation described above is performed. It becomes possible to increase the resistance to. Therefore, also with this configuration, it is possible to suppress the vibration generated during the end face processing of the glass plate and improve the end face processing accuracy.

  As mentioned above, although 1st embodiment of this invention was described, of course, the end surface processing method and end surface processing apparatus of a glass plate which concern on this invention are not limited to this form. The processing method and processing apparatus can take various forms within the scope of the present invention.

  For example, in the above embodiment, the base plate portion 22 is the head mounting member, but an arm member may be used as the head mounting member. An example (second embodiment of the present invention) will be described below.

  Similarly to the first embodiment, the end surface processing apparatus 50 according to the second embodiment of the present invention includes a surface plate 11 that holds the glass plate 1 and an end surface processing machine 51 (see FIG. 6). As in the first embodiment, the end surface processing machine 51 includes a spindle 15a on which the grindstone 13 (14) is mounted at 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. 16, a support member 17 that supports the spindle head 15 b, and a moving device 18 that moves the support member 17 relative to the glass plate 1. In the end face processing machine 51 of the second embodiment, unlike the first embodiment, the support member 17 supports the spindle head 15 b via the arm member 52. In this case, the arm member 52 corresponds to the head mounting member in the present invention. The arm member 52 is swingably supported by a support shaft member 53. Such an end surface processing machine 51 buffers the pressing force generator 54 that applies a force to the arm member 52 to press the grindstone 13 (14) against the end surface 2 of the glass plate 1 and the impact force acting on the grindstone 13 (14). And a shock absorber 55.

  Here, the support shaft member 53 that supports the arm member 52 in a swingable manner is erected on the base plate portion 22 as shown in FIG. Therefore, the spindle head 15 b is indirectly supported by the base plate part 22 via the arm member 52. The spindle head 15 b is attached to one end of the arm member 52, and the 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, so that the intermediate position of the spindle head 15 b similarly attached to the arm member 52 can be supported.

  The pressing force generator 54 can be constituted by an air cylinder, for example. One end of the pressing force generation device 54 is connected to the base plate portion 22 through a joint so as to be rotatable, and the other end of the pressing force generation device 54 is connected to the support portion of the spindle head 15b in the arm member 52. The support shaft members 53 are connected via a joint so as to be rotatable. For example, in the upper end face processing machine 51 of FIG. 6, when the pressing force generator 54 is operated to extend, the arm member 52 swings clockwise, and the grindstone 13 (14) becomes the end face of the glass plate 1. 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 connected to the base plate portion 22 through a joint so as to be rotatable, and the other end of the shock absorber 55 is connected to the support portion of the spindle head 15b and the support shaft member 53 in the arm member 52. They are connected in a rotatable state via a joint.

  Moreover, the structure of the support member 17 and the moving apparatus 18 is the same as 1st embodiment except the content mentioned above.

  The end surface processing for the end surface 2 of the glass plate 1 using the end surface processing apparatus 50 having the above configuration (second embodiment) is, for example, the end surface processing for the end surface 2 of the glass plate 1 using the end surface processing apparatus 10 of the first embodiment. The same procedure as in the example can be performed. According to the end surface processing apparatus 50 of the second embodiment, the first pressing force generator 54 can press the grindstone 13 (14) against the end surface 2 of the glass plate 1 with a desired pressing force. Moreover, the impact force which acts on the grindstone 13 (14) can be buffered by the buffer device 55. For this reason, it can prevent that the grindstone 13 (14) leaves | separates from the end surface 2 of the glass plate 1 with an impact force, and the quality of the end surface 2 of the glass plate 1 can be improved.

  Also in the present embodiment, one end 15c in the axial direction of the spindle head 15b is mounted on the arm member 52 as a head mounting member, and the intermediate portion in the axial direction of the spindle head 15b is supported by the intermediate support member 34. For this reason, the spindle head 15b can be supported firmly and the vibration which arises at the time of the end surface processing of a glass plate can be suppressed. Therefore, it is possible to improve the accuracy of end face processing.

  In the present embodiment, the case where the 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 (such as bolt fastening) is illustrated. (Refer to FIG. 7) Considering that access to the inside of the box-shaped body 28 is not necessary, for example, the plurality of plate portions 22, 23, 25 to 27 may be fixed to each other by welding. Furthermore, the 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 means for fixing between the 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, etc.) should be applied. Is also possible.

  Further, regarding the structure of the intermediate support member 34, in the above embodiment, the inner support 34a is clamped by bringing the inner surface 34a into contact with the outer peripheral surface 15d of the spindle head 15b. The cross-sectional shape of the inner surface 34a of the intermediate support member 34 is circular, and the cross-sectional shape of the outer peripheral surface 15d of the spindle head 15b is circular (see FIG. 5). Of course, it is possible to take other forms, for example, a triangular shape, a rectangular shape, or a polygonal shape such as a hexagonal shape. FIG. 8 shows a cross-sectional structure of the intermediate support member 134 according to one example (third embodiment of the present invention), and the cross-sectional shape of the inner surface 134a is different from that of the first embodiment. More specifically, the cross-sectional shape of the inner surface 134a of the intermediate support member 134 is a rectangular shape, thereby contacting the outer peripheral surface 15d of the spindle head 15b at three or more locations. In FIG. 8, the four flat portions 134b forming the inner surface 134a are in contact with the outer peripheral surface 15d of the spindle head 15b, thereby clamping the spindle head 15b.

  When the intermediate support member 34 has a divided structure, shims and spacers may be interposed between the divided surfaces 35a and 36a (135a and 136a).

  Of course, in the above-described embodiment, the intermediate support member 34 is exemplified as a cylindrical shape, but is not limited thereto. As long as the axially intermediate position of the outer peripheral surface 15d of the spindle head 15b is supported, the forms of the intermediate support members 34 and 134 are arbitrary.

  Moreover, in the said embodiment, although the thing provided with the box-shaped body 28 of rectangular cross section was illustrated as the supporting member 17, the form of the box-shaped body 28 is not restricted to this. For example, the box-shaped body 28 may be formed so as to have a cross-section having a polygonal shape other than a rectangle, such as a triangular cross-section. Furthermore, the box-like body 28 is not essential, and the configuration of the support member 17 is not limited as long as the support member 17 or a member (such as the arm member 52) directly supported by the support member 17 can mount the spindle head 15b. Is optional.

  In the above embodiment, the case where the spindle 15a of the grindstone 13 (14) is connected in a state where the rotation shaft 16b of the drive motor 16 is shifted in the horizontal direction is exemplified, but of course there is no problem in terms of space. For example, the spindle 15a and the rotation shaft 16b of the drive motor 16 can be arranged coaxially.

  In the present invention, a method using the base plate portion 22 as a head mounting member (hereinafter also referred to as “fixed type”) and a method using a swingable arm member 52 as a head mounting member (hereinafter also referred to as “constant pressure type”). And may be combined. For example, when four sets of end face processing machines provided with the grindstone 13 (14) are arranged, the first set of end face processing machines may be a fixed type, and the second to fourth sets of end face processing machines may be a constant pressure type. In this case, the grinding wheel for grinding is attached to the first end face processing machine, and the grinding wheel is attached to the second to fourth end face processing machines. Here, the first set of end face processing machines means a set of end face processing machines that first process the end face of the glass plate among the four sets of end face processing machines.

  When the fixed type and the constant pressure type are combined as described above, the fixed type is more likely to generate vibration than the constant pressure type. Therefore, if the intermediate support members 34 and 134 according to the present invention are applied to a fixed type end face processing machine when combining the fixed type and the constant pressure type, the effect becomes more remarkable.

  Moreover, although the above description illustrated the case where predetermined processing (grinding processing and polishing processing) was performed on the end surface 2 of the glass plate 1 by contact with the grindstone 13 (14), the present invention is based on other tools. Of course, the present invention can also be applied to the processing of the end face 2.

DESCRIPTION OF SYMBOLS 1 Glass plate 2 End surface 10,50 End surface processing apparatus 11 Conveyance apparatus 12,51 End surface processing machine 13,14 Each grindstone 15a Spindle 15b Spindle head 15c Axial direction end part 15d Outer peripheral surface 16 Drive motor 17 Support member 18 Moving device 19 1st Slide mechanism 20 Second slide mechanism 21 Third slide mechanism 22 Base plate portion 23 Connection plate portion 24 Belts 25 and 26 Side plate portion 27 Bottom plate portion 28 Box-shaped bodies 29 and 30 First ribs 31 and 32 Second ribs 33 Welded portions 34, 134 Intermediate support members 35, 36, 135, 136 Divided bodies 34a, 134a Inner surface 37 Bolt 52 Arm member 53 Servo mechanism 54 Support shaft member 55 Servo motor 56 Link mechanism 134b Plane portion F Transport direction

Claims (7)

In the end face processing method of the glass plate that performs predetermined processing on the end face by contacting the end face of the glass plate while rotating the tool provided in the end face processing apparatus,
The end surface processing apparatus includes a spindle on which the tool is mounted, a spindle head that rotatably supports the spindle, and a head mounting member on which one axial end portion of the spindle head is mounted.
A method of processing an end face of a glass plate, characterized in that an axially intermediate portion of the spindle head is supported by an intermediate support member. The intermediate support member is composed of a plurality of divided bodies,
The glass plate end face processing method according to claim 1, wherein the spindle head is clamped by connecting the plurality of divided bodies to each other and bringing the inner surface of the intermediate support member into contact with the spindle head.   Each of the divided bodies is formed separately from the head mounting member, and one end of each of the divided bodies is attached to the head mounting member, and the plurality of divided bodies are fastened to each other with bolts to The end face processing method of the glass plate of Claim 2 clamped. The intermediate support member is divided into two parts, and the spindle head is clamped by connecting the two divided parts to each other.
The processing tool is brought into contact with the end surface of the glass plate in a state in which the direction of the normal of the divided surface formed in each divided body is matched with the cutting direction of the tool by dividing the intermediate support member into two parts. The end surface processing method of the glass plate of Claim 2 or 3.   The cross-sectional shape of the inner surface of the said intermediate support member is circular shape, The end surface processing method of the glass plate as described in any one of Claims 2-4.   The method of processing an end face of a glass plate according to any one of claims 2 to 4, wherein a cross-sectional shape of an inner surface of the intermediate support member is a rectangular shape. In the glass plate end face processing apparatus that performs predetermined processing on the end face of the glass plate with a rotating tool,
A spindle on which the tool is mounted; a spindle head that rotatably supports the spindle; and a head mounting member on which one axial end of the spindle head is mounted.
An apparatus for processing an end face of a glass plate, wherein an axially intermediate portion of the spindle head is supported by an intermediate support member.

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