KR20140040628A - Griding device for thin-plate like workpiece and manufacturing method of thin-plate like member - Google Patents

Abstract

An objective of the present invention is to provide an apparatus for grinding a thin plate type workpiece, which can restrain the cost of an entire apparatus and in addition, be relatively easy to be maintained. An apparatus for grinding a thin plate type workpiece according to the present invention includes a sensing unit moving in one direction and including a moving body for sending a workpiece; a processing table for receiving the workpiece from the moving body and maintaining the received workpiece; a grinder for grinding the workpiece maintained on the processing table; and a plurality of grinding units installed in one direction, wherein the sending unit includes a camera installed to the moving body to photograph the workpiece maintained on the processing table, and each of the grinding units includes a processing table guiding means installed in the one direction to move the workpiece from a position at which the processing table receives the workpiece to a workpiece grinding position; and a rear scale for detecting a position of the moving body.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a grinding apparatus for a thin plate-

The present invention relates to a grinding apparatus for a thin plate workpiece and a method for manufacturing a thin plate member.

BACKGROUND ART [0002] As a thin plate type article processing apparatus, for example, there is known a grinding apparatus for performing end surface grinding of a roughly square thin plate workpiece. This grinding apparatus is, for example, a thin plate used in a portable terminal And is used for performing section grinding of the glass. A thin glass plate is often used for the monitor of this portable terminal. Such a thin plate glass is formed into a predetermined shape by cutting a generally large-sized glass plate into a substantially workpiece shape and grinding the end face of the cut glass plate with a grinding apparatus. Particularly, at the time of grinding, a chamfered process is also performed at the same time to prevent a defect in the cross section of the thin glass plate.

In recent years, for example, in a portable terminal such as a cellular phone, the entirety of one side of the portable terminal, or most of one side thereof, is increasingly configured as a display screen. In such a case, the screen is frequently made into a touch panel, and a portable terminal that covers all of the one surface with a thin plate glass is increasing.

The present inventor has found that, in a grinding apparatus for grinding a section of a work such as a thin plate glass used for a display screen of a portable terminal such as a mobile phone, the workpiece and the reference pin are picked up by the camera and the picked- (Refer to Japanese Patent Application Laid-Open No. 2011-101942).

Further, the present inventors have found that, when a transfer unit for transferring (transferring) a workpiece to a machining table of a plurality of grinding units has a rotor, and by grinding the workpiece with a plurality of workpiece holding portions (Japanese Patent Application No. 2011-81965).

Japanese Patent Application Laid-Open No. 2011-101942 Japanese Patent Application No. 2011-81965

In the grinding apparatus of the above-mentioned Japanese Patent Application No. 2008-81965, when the camera is installed as described above and the workpiece and the reference pin are picked up, the machining of the received position is performed so that the distance between the workpiece and the pin It is preferable that the image is taken by the camera directly above the table. However, when the rotating body is rotated, the water (grinding liquid at the time of grinding) attached to the workpiece held by the rotating body may scatter and adhere to the lens of the camera, and water may adhere to the camera lens There is a possibility that the grinding precision will be lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a grinding apparatus capable of accurately grasping the state of a workpiece on a machining table, and a method of manufacturing a thin plate type workpiece using the grinding apparatus.

In the grinding apparatus for a thin plate type workpiece of the present invention,

A grinding apparatus for a thin plate workpiece for grinding a thin plate workpiece,

A carrying unit having a traveling body traveling along one direction and carrying a workpiece, and

And a grinding machine for grinding the workpiece held by the work table, wherein a plurality of grinding units are provided along the one direction,

/ RTI >

Wherein the transfer unit includes a camera mounted on the traveling body and configured to pick up a workpiece held on the processing table,

And the grinding unit has a linear scale for detecting the position of the traveling body.

The grinding apparatus of the thin plate type workpiece grasps the workpiece held on the machining table by the camera and grasps the holding state of the workpiece in the machining table based on the picked up image data and grasps the reference position of the workpiece by the linear scale And accurately grasping the relative positions of the traveling body (camera) and the machining table (workpiece), it is possible to more accurately grasp the holding state of the workpiece in the machining table. That is, for example, first, the reference position of the traveling body is grasped by the linear scale, the traveling body receives the workpiece on the machining table, then moves the machining table, picks up the workpiece held by the machining table, The holding state of the machining table of the workpiece can be accurately grasped based on the image pickup data and the moving distance. Therefore, it is possible to calculate the grinding path in accordance with the holding state of the workpiece, and perform accurate grinding. In addition, since the grinding apparatus for the thin plate-like workpiece is provided with a plurality of grinding units along one direction, it is possible to grind the grinding unit by grinding, for example, grinding So that the productivity can be improved.

And a plurality of the grinding units are respectively provided with a machining table guiding means provided in a direction intersecting in one direction so as to move the machining table from the take-in position of the workpiece to the grinding position of the workpiece. Thus, each of the machining tables can be accurately moved along the machining table guide means from the machined position of the workpiece to the workpiece grinding position.

The transport unit has a rail on which the traveling body travels, and the linear scale is attached (attached) in the vicinity of the rail. As a result, the position of one direction of the traveling body traveling along the rail can be accurately grasped, and therefore, the relative position of the traveling body and the processing table can be grasped more accurately. The vicinity of the rail means a position at which the linear scale can measure the position of the traveling body traveling along the rail.

The machining table guiding means may have a precise moving mechanism. This makes it possible to accurately grasp the relative position between the traveling body and the machining table in the one-direction intersecting direction (the mounting direction of the machining table guiding means), and at the same time, the machining table holding the workpiece can be accurately moved to the grinding position.

Wherein the traveling body has at least two workpiece holding portions and selectively rotatably facing the workpiece holding table at the receiving position to face the workpiece holding portion and a columnar portion to which the rotating body is rotatably mounted, The camera is attached to the columnar portion on the opposite side of the side where the workpiece holding portion is mounted. As a result, even if the water droplet adhering to the workpiece is scattered by the rotation of the rotating body, the water droplet can not easily adhere to the camera. Therefore, it is possible to precisely suppress the reduction of the grinding accuracy due to the water droplet adhering to the camera. Further, the traveling body is caused to travel to the receiving position of the machining table while keeping the unprocessed workpiece in one of the workpiece holding portions, and the machined workpiece is held on the machining table by machining the machined workpiece Can be supplied. Further, the workpiece holding section can receive the machined work held by the machining table at the receiving position from the workpiece holding section, and can carry out the workpiece. Particularly, since the workpiece holding portion is formed at at least two places, the above-described supply step and the carry-out step can be performed almost continuously. That is, for example, the traveling body is caused to travel to the receiving position of the machining table in a state in which the workpiece that has not been machined is held in one workpiece holding section and the workpiece is not held in the other workpiece holding section, The workpiece holding portion of the workpiece holding portion is received by the workpiece holding portion of the workpiece holding portion, and then the rotating body is rotated to receive the workpiece as described above, The unprocessed workpiece to be held can be received on the machining table.

It is preferable that the rotating body is mounted on the columnar portion such that the rotating body can approach and separate from the machining table side of the received position. That is, if the machining table is moved up and down in order to approach and separate the machining table and the rotating body having a difference in height (height difference) in order to receive and deliver the work, the structure may become complicated. Therefore, The whole structure is mounted on the columnar portion so as to be accessible and spaced apart from each other, thereby simplifying the structure and preventing an increase in the cost of the apparatus, failing to easily occur, and maintenance being easy.

It is sufficient that the camera has a lens and a droplet splatter preventing means provided on the surface side of the lens and for preventing scattering of water droplets from the surface side to the lens side. Thus, even when the water droplet or the like attached to the workpiece is scattered toward the lens, the adhesion to the lens can be suppressed by the droplet splash preventing means, and therefore, the drop of the grinding precision due to the water droplet adhering to the lens can be suppressed can do.

Further comprising a control means for controlling the camera, the traveling body, and the machining table, wherein the control means includes a step of recognizing the position of the traveling body by the linear scale, a step of picking up a workpiece held by the machining table Moving the traveling body and the machining table relative to each other between the recognizing step and the imaging step and recognizing the position of the machining table of the workpiece based on the imaging data and the relative moving distance of the workpiece, The step of calculating the grinding path may be performed based on the position of the workpiece. This makes it possible for the control means to accurately grasp the holding state in the machining table of the workpiece based on the image pickup data of the workpiece and the relative moving distance.

The grinding apparatus of the thin plate type workpiece is characterized in that the carrying unit is provided with a traveling body guiding means for guiding the traveling body and is provided on one side near the starting end of the traveling body guiding means, And a carry-out unit which is provided on the other side near the starting end of the traveling body guiding means and which receives the workpiece that has been machined from the transporting unit. Thus, by feeding the unprocessed workpiece to the carry-in unit, the above-described grinding process is performed, and the finished workpiece is handed to the take-out unit, so that the machined workpiece can be taken out from the carry-out unit. Further, since the carry-in unit is provided at the position where the carry-out unit is held between the carry-out body guiding unit, the workpiece can be supplied to the workpiece holding unit by the carry-in unit at the position of the traveling body carrying out the workpiece of the workpiece holding unit by the carry- .

The method of manufacturing a thin plate member according to the present invention includes a step of grinding a thin plate workpiece by the grinding apparatus of the thin plate workpiece having the above structure. As a result, a precisely ground thin plate member can be manufactured.

INDUSTRIAL APPLICABILITY As described above, the grinding apparatus for a thin plate-like workpiece of the present invention can precisely grasp the state of the workpiece in the machining table, thereby achieving high-precision grinding.

1 is a schematic plan view for explaining an embodiment of a grinding apparatus for a thin plate type workpiece according to the present invention.
Fig. 2 is a schematic front view of the traveling body of the grinding apparatus of the thin plate-like workpiece of Fig. 1;
Fig. 3 is a plan view of a traveling body of a grinding apparatus of the thin plate-like workpiece of Fig. 1 (however, the illustration of the rollers is omitted).
4 is an enlarged cross-sectional view of a main portion of a droplet splash preventing means of a camera of a traveling body of a grinding apparatus of the thin plate type workpiece shown in Fig.
Fig. 5 is a schematic perspective view schematically showing supply and discharge states of a workpiece in a transfer unit of a grinding apparatus of the thin plate-like workpiece of Fig. 1;
Fig. 6 is a plan view of a machining table provided with an adsorption table of the grinding apparatus of the thin plate-like workpiece of Fig. 1;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a grinding apparatus for a thin plate-like workpiece according to the present invention (hereinafter, simply referred to as a grinding apparatus) will be described with reference to Figs. 1 to 6. Fig. In the present specification, the term " grinding " refers to not only cutting a section of a workpiece for the purpose of dimensional accuracy but also cutting a section of the workpiece a little in order to obtain a desired surface roughness Is used in the meaning including.

First, the overall structure of the grinding apparatus M will be described with reference to Fig. In each drawing, although not specifically shown, a guard plate (not shown) is provided around the grinding machine M in order to ensure the safety of the operator, as is well known.

The grinding apparatus M includes a transfer unit 10 for transferring a workpiece W which is thin plate glass for a portable telephone, a carry-in unit 60 for carrying the workpiece W to the carry unit 10, A plurality of (four) grinding units 100 for grinding the workpiece W received from the transfer unit 10; control means (not shown) for controlling various operations; .

As shown in FIG. 1, the conveying unit 10 includes a traveling body guide means 11 provided linearly in one direction, and a traveling body 13 that travels along the traveling body guide means 11. . Here, the traveling body guide means 11 has a rail provided in parallel, and the drive means (not shown) which drives the traveling body 13 to a rail installation direction. As the driving means, a belt driving mechanism can be used. The plurality of grinding units 100 includes a machining table guiding means 101 provided in a direction perpendicular to the rail 11, a machining table 103 running along the machining table guiding means 101, And a grinding machine 104 for grinding a workpiece W mounted on the workpiece table 103. The machining table 103 has a position where the workpiece W immediately below the traveling body 13 of the carrying unit 10 is received, (The right side). The plurality of grinding machines 104 are all provided on one side (the upper right side in the drawing) of the rails 11.

≪ Transport unit 10 >

2 and 3, the traveling body 13 includes a base 13a to which a wheel 14 for rolling the rail 11 is attached, a base 13a to which the base 13a is fixed, (13b), and a rotating body (25) rotatably mounted on the columnar portion (13b) so as to be movable up and down. The rotating body 25 is provided so as to be rotatable about an axis parallel to the installation direction of the rail 11 (the one direction). A mechanism for rotating and vertically moving the rotating body 25 is not particularly limited. For example, a vertically moving member that slides up and down is provided on the columnar portion 13b, and a rotating body 25 may be provided. The base 13a is provided with a space (a hole 13c) for allowing movement of the work W when the rotating body 25 moves downward (see Fig. 3).

The rotating body 25 has a side plate provided as a workpiece holding portion 27 shown in Fig. 3 and facing each other and a frame 28 connecting the side plates 27. The two workpiece holding portions As shown in Fig. 3, the side plate 27 protrudes outward from the outer surface of the side plate 27. As shown in Fig. In the present embodiment, the state in which the pair of workpiece holding portions 27 are located on the lateral sides is described as a normal state. Unless otherwise specified, terms such as up, down, left, and right are used in this normal state .

Each of the workpiece holding portions 27 has a plurality of (three) workpiece holding members 29 (workpiece holding means) in the mounting direction of the rails 11 and a plurality of (two) (29). Since each of the workpiece holding portions 27 has a plurality of the workpiece holding members 29 as described above, a plurality of workpieces W can be held simultaneously. Each of the workpiece holding members 29 is in communication with an intake path (not shown) provided therein, and therefore can be held by suctioning the workpiece W. [

The rotating body 25 is provided so as to be rotatable and reversible about the axis and is capable of rotating 90 degrees in one direction (for example, clockwise) and 90 degrees (-90 [deg.] &Quot; in some cases) may be rotated (reversed). More specifically, the rotating body 25 is rotated so that one of the two workpiece holding portions 27 faces downward, and the workpiece holding portion 27 facing the machining table 103 described later can be selected Is installed. The rotating body 25 is provided so as to be vertically movable and is provided so as to be able to approach and separate from the machining table 103. The workpiece holding portion 27 is provided in the rotating body 25 are moved downward, the workpiece W is handed from the workpiece holding portion 27 to the machining table 103.

The transport unit 10 further includes a camera 23 mounted on the traveling body 13. [ The camera 23 is attached to the columnar portion 13b of the traveling body 13 and specifically to the columnar portion 13b on the opposite side of the side where the workpiece holding portion 27 is mounted. The camera 23 includes a casing 23a, an optical member 23b formed of a plurality of lenses provided in the casing, and an optical member 23b disposed on the front surface (lower side) of the lens and scattering water droplets from the front surface side to the lens (30) for preventing water droplets. The droplet splash preventing means 30 is constituted by means for generating a flow of air on the surface side. Specifically, as shown in Fig. 4, the droplet splash preventing means 30 is provided outside the photometric path of the optical member 23b, And an annular member capable of ejecting air toward the inside. The annular member has a circumferential groove 30a formed on its inner wall, and air is ejected from the circumferential groove 30a. In the illustrated example, the camera 23 is fixed to the columnar portion 13b. However, for example, it is also possible to suitably change the design of mounting the camera on the columnar portion in a vertically movable manner.

<Bringing unit and carrying unit>

The carrying unit 60 and the carrying out unit 70 are provided at the leading end of the rail 11 and the plurality of grinding units 100 are sequentially arranged on the end side of the rail 11. [ The carry-in unit 60 and the carry-out unit 70 are provided so as to face each other by sandwiching the rail 11 (see FIG. 1). In the present embodiment, a plurality of grinding machines 104 are provided on the carry-out unit 70 side (right side) with respect to the rails 11.

5, the loading unit 60 is provided with a loading table (not shown) of a workpiece cartridge 61 for standing up and holding the unprocessed workpiece W, and a workpiece W (not shown) of the workpiece cartridge 61 And a moving mechanism (not shown) for moving the carrying-in and holding member 63 up and down in the horizontal direction (the horizontal direction orthogonal to the rail 11) The carry-in unit 60 holds the unprocessed workpiece W erected on the workpiece cartridge 61 by the carry-in holding member 63 and the carry-in holding member 63 is moved up and down And is supplied to the workpiece holding portion 27 of the transfer unit 10 existing between the carry-in unit 60 and the carry-out unit 70. [

The carrying-out unit 70 includes a loading table (not shown) of the workpiece cartridge 71 for standing up and holding the finished workpiece W and holding the workpiece W And a moving mechanism 73 for moving the carrying-out and holding member 73 up and down in the horizontal direction (horizontal direction orthogonal to the rail 11) (Not shown). This carrying-out unit 70 holds the workpiece W of the workpiece holding portion 27 of the carrying unit 10 and moves the carrying-out and holding member 73 in the up-and-down horizontal direction by the moving mechanism, To receive the work W. Although one workpiece cartridge 61 and one workpiece cartridge 71 are provided in each of the carry-in unit 60 and the carry-out unit 70 in the illustrated example, the number of the workpiece cartridges 61 and 71 is , The design can be appropriately changed. The workpiece cartridges 61 and 71 may be of various types. For example, the workpiece cartridges 61 and 71 may be partitioned by resin walls so that the workpiece W is erected in three rows in the left-right direction.

For example, the workpiece cartridges 61 and 71 may be configured as draw-out type structural members (for example, as shown in Fig. (Out of the apparatus M) of the work cartridges 61, 71 and the loading / unloading position (outside the apparatus M) of the work cartridges 61, 71, And is mounted on the device M so as to be slidable in a direction The slide of the pull-out structural member can be manually completed by the operator. However, when the carry-in unit 60 or the carry-out unit 70 is operated, .

<Grinding unit>

As shown in Fig. 1, each of the grinding units 100 further has a linear scale 102 in the vicinity of the position where the workpiece W is picked up. Here, the linear scale 102 is the opposite side of the grinding machine 14 of the rail 11 (left rail 11) of the side of the pair of rails 11 in which the grinding machine 104 is not installed (Fig. 1). Therefore, the linear scale is not easily affected by the water droplets of the workpiece W. The linear scale 102 is an optical linear scale 102 having a light emitting diode (LED) as a light source and is provided in the vicinity of the rail 11 along the installation direction of the rail 11. Here, the linear scale 102 is provided so that the counting direction display surface is the upper surface.

The machining table guiding means 101 has an electrically precise moving mechanism and employs a ball screw mechanism 101 as the precise moving mechanism. The ball screw mechanism 101 linearly moves the machining table 103 in the direction orthogonal to the rails 11 by the rotational force of the drive means 101a. As the driving means 101a, an electric motor capable of controlling the rotational force is preferably used. For example, a servo motor is preferably used.

6, the machining table 103 includes a stage base 105 which is moved by the machining table guiding means 101 and a stage base 105 which is detachably mounted on the stage base 105 And a holding base 107. In the holding base 107, a suction table 108 for holding the workpiece W is mounted and fixed. Here, it is preferable that a plurality of adsorption bands 108 are mounted and fixed corresponding to the number of workpieces W held by the transfer unit 10. An adsorption port (not shown) is formed on the upper surface of the adsorption column 108 of the holding base 107, and a negative pressure connection port for making the air inlet port a negative pressure is provided. Thus, the machining table 103 can be held by suctioning the work W.

It is also possible to provide a plurality of types of the holding bases 107 to be detachably mounted on the stage base 105. Thereby, the desired holding base 107 is selected and mounted according to the size of the work W, so that grinding suitable for the size of the work W can be easily and reliably performed.

The grinding machine 104 of the grinding unit 100 is provided with a machining tool 130 for grinding a section of the work W (thin plate glass) on the machining table 103 so as to be removable. The machining tool 130 grinds the end face of the workpiece W that is in contact with the workpiece W by rotating, for example. As the machining tool 130, it is also possible to perform the hole machining by making contact with the work W. A plurality of types of machining tools 130 are mounted on the machining table 103 so that the machining tool 130 can be mounted on the grinding machine 104 in accordance with the purpose.

The grinding machine 104 has a machining spindle (not shown) for detachably attaching the machining tool 130 to the tip end thereof. The machining spindle includes an electric motor (not shown) for generating a rotational drive force when grinding, and a chuck for mounting a machining tool on the spindle shaft of the electric motor.

The machining spindle (grinding machine 104) is provided so as to be movable along the mounting direction of the rail 11. [ Therefore, by moving the machining table 103 and the machining spindle, the machining tool is provided so as to be movable in the horizontal direction (front-back, left-right direction) relative to the workpiece W on the machining table 103. [ The machining spindle is also provided so as to move in the vertical direction as well.

The grinding unit 100 preferably further includes grinding liquid spraying means (not shown) for spraying the grinding liquid toward the processing tool 130 mounted on the processing spindle. By spraying the grinding liquid by the grinding liquid spraying means, it is possible to suppress the heat of the surface of the processing tool 130 which occurs at the time of grinding.

<Control means>

The control means may be, for example, an electronic control unit. This control means supplies the unprocessed workpiece W to the machining table 103 by the transport unit 10 and grinds the workpiece W of the machining table 103 by the grinding unit 100, W from the machining table 103. Hereinafter, this control will be described.

First, when the grinding operation is started, the traveling body 13 of the transport unit 10 is positioned at the leading end side of the rail 11. [ The unloading unit 60 receives the unprocessed workpiece W from the workpiece cartridge 61 and transfers the unprocessed workpiece W to the workpiece holding unit 27 on one side of the traveling body 13, I accept it. In this way, suction and stop of the suction portions of the workpiece holding portion 27 and the carry-in unit 60 are controlled. The suction and the stop of the work W to be described later are also controlled in this way, and detailed description thereof will be omitted.

The traveling body 13, which has received the unprocessed workpiece W, moves to the receiving position of one of the grinding units 100 of the plurality of grinding units 100. The stopping of the traveling body 13 at the received position is performed based on the information of the linear scale 102. [ At this time, the machining table 103 of the grinding unit 100 also moves to the take-off position.

Then, the rotating body 25 rotates by 90 占 and the workpiece holding portion 27 holding the workpiece W is downwardly facing the workpiece W and the machining table 103. Then, Then, the rotating body 25 is lowered, and the workpiece W is transferred to the machining table 103 and delivered.

Thereafter, the machining table 103 is moved, and the camera 23 picks up the mark of the workpiece W on the machining table 103. It is preferable that a plurality of marks of the work W are set.

The holding state (holding position) of the workpiece W in the machining table 103 is determined (the position of the workpiece is recognized) based on the picked-up data of the picked-up workpiece W and the distance moved for the picking up, The grinding path of W is calculated.

As described above, after the end of the imaging by the camera 23, the machining table 103 moves to the machining position. Then, the workpiece W is ground based on the grinding path by moving the machining table 103 and the grinding machine 104.

After the end of the image pickup by the camera 23 as described above, the traveling body 13 moves toward the starting point of the rail 11. [

The above-mentioned carrying operation is performed for each grinding unit 100, and the workpiece W is supplied to each grinding unit 100. [

Then, when the grinding operation is completed in the grinding unit 100, the machining table 103 moves to the receiving position. Further, the traveling body 13 moves to the above-mentioned receiving position while holding the workpiece W which is not machined in one of the workpiece holding portions 27. [ At this time, the other workpiece holding portion 27 is in an empty state in which the workpiece W is not supported.

Thereafter, the rotation of the rotary body 25 is rotated by -90 degrees, and the other workpiece holding portion 27, which does not hold the workpiece W, is downwardly moved to face the workpiece W and the machining table 103 . Then, the rotating body 25 descends to receive the workpiece W that has been machined from the machining table 103.

Then, the rotating body 25 rotates by 180 degrees, and the workpiece holding portion 27 holding the workpiece W is downwardly facing the workpiece W and the machining table 103. Then, the rotating body 25 is lowered, and the workpiece W is transferred to the machining table 103 and delivered.

Thereafter, movement to the imaging position of the machining table 103 as described above is performed, and imaging by the camera 23 and calculation of the grinding path are performed.

After this photographing, the machining table 103 is moved to the machining position to start the grinding operation, and at the same time, the traveling body 13 moves to the viewpoint side of the rail 11. [

After the workpiece W is moved to the viewpoint side of the rail 11, the carry-out unit 70 receives the machined workpiece W from the other workpiece holding portion 27 of the traveling body 13, The unloading unit 60 receives the unprocessed workpiece W from the workpiece cartridge 61 of the unprocessed workpiece W and transfers the unprocessed workpiece W to the unloading unit 60. [ The carry-in unit 60 is picked up by the workpiece holding portion 27 on one side of the traveling body 13.

The traveling body 13 that has received the unprocessed workpiece W moves to the receiving position of the other grinding unit 100 that has finished the grinding operation, and the above carrying-out and carry-out operation is repeatedly performed.

As described above, the end face of the workpiece W is ground by the grinding device M under the control of the control means, so that a thin plate member having a section grinded can be manufactured.

<Advantages>

The grinding machine M can accurately grasp the relative position between the traveling body 13 and the machining table 103 by grasping the one-way reference position of the traveling body 13 by the linear scale 102. [ It is also possible to move the machining table 103 to the image pickup position and pick up the workpiece W to accurately grasp the holding state (posture) of the workpiece W in the machining table 103 based on the moving distance and the picked- Can be calculated. Therefore, the cross section of the work W can be ground with good precision.

Even if the position of the traveling body 13 between the machining tables 103 is not accurately recognized, the linear scale 102 is provided for each machining table 103, Can be accurately grasped by the respective linear scales 102. Therefore, it is possible to employ the same belt driving mechanism of the above-described embodiment as means for traveling the traveling body 13, and it is possible to improve the running speed of the traveling body 13 and suppress the cost of the apparatus. In addition, since the linear scale 102 is formed for each machining table 103 as described above, it is possible to reduce the cost of the apparatus as compared with the case where one linear scale is provided over a plurality of machining tables, The precision of itself can be improved.

In addition, since the machining table 103 can be moved by the ball screw in the mounting direction of the machining table guide means 101 with respect to the grinding, the accuracy of grinding the workpiece W is high

Since the traveling body 13 is provided with two workpiece holding portions 27 and the workpiece holding portion 27 can be selectively faced to the machining table 103 at the above-mentioned received position by rotation, It is possible to carry out the discharging step and the conveying step substantially continuously, thereby improving the production efficiency.

Particularly, since the grinding unit 100 has a plurality of grinding units 100, the grinding operation can be performed in the other grinding unit 100 while the image pickup operation or the transport operation as described above is performed in one grinding unit 100, Can be further improved.

The workpiece holding unit 27 is provided on the opposite wall of the rotating body 25 so that the carry unit 60 and the carry-out unit 70 are held by the rail 11, The supply of the unprocessed workpiece W by the carry-in unit 60 and the discharge of the processed work W by the carry-out unit 70 can be performed at the same time, thereby shortening the carry-out time of the workpiece W The productivity can be improved.

Since the camera 23 is attached to the columnar portion 13b of the traveling body 13 on the side opposite to the side on which the workpiece holding portion 27 is mounted, the rotation of the rotating body 25 causes the workpiece W Even if the water droplet attached to the camera 23 is scattered. Therefore, it is possible to accurately suppress the lowering of the grinding precision due to the water droplet adhering to the camera 23. [

Further, the traveling body 13 is caused to travel to the receiving position of the machining table 103 while keeping the workpiece W which is not machined in one of the hook holding portions 27, and the machined workpiece W The unprocessed workpiece W can be supplied to the machining table 103 by receiving it to the table 103. [ Further, the workpiece W that has been machined and held by the machining table 103 at the receiving position can be received from the workpiece holding section 27, and the workpiece W can be taken out. Particularly, since the workpiece holding portion 27 is formed at at least two positions, the above-described supplying and releasing steps can be performed almost continuously. That is, for example, in a state where the unprocessed workpiece W is held on one of the workpiece holding portions 27 and the workpiece W is not held on the other workpiece holding portion 27, And the other workpiece holding portion 27 receives the workpiece W that has been machined from the machining table 103. Thereafter, the rotating body 25 is rotated, The unprocessed workpiece W held by the workpiece holding section 27 is brought into contact with the processing table 103 so that the one workpiece holding section 27 is opposed to the machining table 103 which is received and emptied as described above, You can send it to.

It is preferable that the rotating body 25 is mounted on the columnar section 13b so as to approach and separate from the processing table 103 side at the receiving position. That is, if the machining table 103 is moved up and down in order to approach and separate the machining table 103 and the rotating body 25 in order to hand over the work W, there is a possibility that the structure becomes complicated. As the rotary body 25 is mounted to the columnar portion 13b so as to be able to approach and separate from the rotary body 13, the structure becomes simple, the increase in the cost of the apparatus is prevented, the failure does not easily occur, and maintenance is also easy.

The camera 23 may have a lens and a droplet splatter preventing means 30 provided on the front surface side of the lens to prevent scattering of water droplets from the front surface side to the lens side. Thus, even when the water droplet or the like attached to the workpiece W is scattered toward the lens, the adhesion to the lens can be suppressed by the droplet splash preventing means 30, and therefore, The degradation can be suppressed accurately.

The grinding apparatus for the thin plate type workpiece W further includes control means for controlling the camera 23, the traveling body 13 and the machining table 103. The control means controls the linear scale 102 to travel (13), a step of photographing the workpiece (W) held by the machining table (103) to the camera (23), a step of moving the traveling body (13) between the recognizing step and the imaging step, And the step of calculating the position of the machining table 103 of the workpiece W based on the imaging data and the relative movement distance of the workpiece W may be performed. Thus, the control means can accurately grasp the holding state of the workpiece W in the machining table 103 based on the imaging data of the workpiece W and the relative movement distance.

The grinding apparatus for a thin plate-like workpiece according to any one of claims 1 to 3, wherein the grinding apparatus of the thin plate type workpiece comprises a traveling body guiding means for guiding the traveling body (13) by the carrying unit (10), and is provided on one side near the starting end of the traveling body guiding means And a take-out unit (70) which is provided on the other side near the starting end of the traveling body guiding means and which receives the work W that has been machined from the carrying unit (10) ). Thus, the unprocessed workpiece W is supplied to the carry-in unit 60, so that the above-described grinding process is performed and the machined workpiece W is transferred to the carry-out unit 70, The machined workpiece W can be taken out. In addition, since the carrying-in unit 60 is installed in the position which clamped the carrying-out unit 70 and the traveling body guide means, the traveling body 13 which carried out the workpiece | work W of the workpiece holding part 27 by the carrying out unit 70 is carried out. In the position of, the work W can be supplied to the work holding part 27 by the carrying-in unit 60.

Further, in the grinding apparatus M, the machining table 103 has a plurality of attracting belts 108 capable of holding workpieces W, respectively, so that a plurality of workpieces W can be ground by one machining operation. Each of the workpiece holding portions 27 at two places has a plurality of workpiece holding members 29 corresponding to the suction cups 108 of the processing table 103, The plurality of workpieces W can be transported and unloaded. Therefore, the productivity can be further improved. Particularly, for example, in the case of performing machining by a plurality of types of machining tools in a single machining operation, it is possible to perform machining of a plurality of workpieces W with one machining tool And then the one processing tool is released and another processing tool is mounted so that the same type of processing by the other processing tool can be performed on the plurality of workpieces W. [ That is, since machining processing of a plurality of workpieces W is performed by attaching / detaching of one machining tool, time required for attaching / detaching machining tools can be shortened, and work efficiency can be improved.

Further, since the machining table 103 is received by the machining table guide means 101 and moves from the goin position to the machining position, it is possible to divide the machining area into a machining area and a machining area, The wet state can be distinguished from the state of wet state. In addition, one of the two workpiece holding portions 27 holds only the dry unworked workpiece W and the other retains only the wetted workpiece W so that the dry / wet state of each workpiece holding portion 27 .

In the grinding machine M, all of the grinding machines 104 of the plurality of grinding units 100 are provided so that their machining positions are located on the same side with respect to the rails 11, The rail 11 can be provided on the side of the apparatus where the position is not provided and the transportation unit 10 can be easily repaired or inspected.

Since the carry unit 60 and the carry-out unit 70 are provided near the starting end of the rail 11, the supply part of the workpiece W and the supply part of the workpiece W are provided on one side surface (the side surface on the leading end side of the rail 11) The discharge portion can be disposed. Therefore, one worker can carry out the workpiece cartridge 61, 71 from one side by inputting / taking in (bringing in) the workpiece.

I0076]

In addition, the camera 23 is mounted on the traveling body 13, the workpiece W on the machining table 103 is photographed, and grinding work can be performed on an accurate grinding path based on the photographed data.

It is also conceivable to install a plurality of cameras 23 and install a camera 23 for each processing table 103. However, the configuration in which the camera 23 is mounted on the traveling body 13 as described above is adopted Therefore, it is not necessary to provide a plurality of cameras 23, and the increase in cost of the apparatus can be suppressed.

<Other Embodiments>

The present invention is not limited to the above-described embodiment, but can be appropriately changed in design within the scope of the present invention.

In the grinding apparatus M of the above-described embodiment, the workpiece W as the workpiece W is a thin plate glass for a cellular phone, but for example, it may be a thin plate glass for portable audio equipment or a thin plate glass for a portable game machine . Further, it may be a thin plate glass for portable navigation, a thin plate glass for portable TV, or the like.

In the above embodiment, the image picking up of the workpiece W with respect to the image pickup of the workpiece W has been mainly described, but the present invention is not limited to this, and the shape of the workpiece (part or all of the outer shape It is also possible to arrange to recognize the holding state of the workpiece by imaging.

In the above-described embodiment, the linear scale 102 is attached to the vicinity of the juncture position. However, the present invention is not limited to this. The linear scale 102 may be a linear scale, Is not particularly limited. That is, for example, after recognizing a reference position that is a reference of the relative relationship between the traveling body and the workpiece by the linear scale, the traveling body runs along the rails, picks up the workpiece at the image pickup position, So that it is also possible to calculate the grinding path with reference to the traveling distance.

The present invention is not limited to this, but may be applied to two or more grinding units 100, for example, three or five grinding units 100, (100).

In the above-described embodiment, the grinding machine 104 capable of exchanging the machining tool is shown, but the present invention is not limited to this, and the grinding machine 104 may be a non-replaceable machine.

Although the linear scale 102 is provided in each of the grinding units 100 in the above embodiment, the present invention is not limited to this, and one linear scale disposed over all of the grinding units 100 may be used .

In the above embodiment, the workpiece holding portion 27 has three workpiece holding members 29 in the mounting direction of the rails 11 and two workpiece holding members 29 in the downward direction. However, But is not limited thereto. The workpiece holding portion 27 is configured to have, for example, one workpiece holding member 29, and four workpiece holding members in the rail mounting direction, and three workpiece holding members in the vertical direction .

In the above embodiment, a precise moving mechanism is used as the machining table guiding means 101, and the machining table guiding means moves the machining table. However, the present invention is not limited to this. In other words, it is also possible to adopt a configuration in which the machining table moves along the machining table guiding means by a drive means different from the machining table guiding means. As the machining table guiding means 101, it is preferable to employ a precise moving mechanism as in the above-described embodiment, whereby grinding work can be accurately performed while accurately grasping the position of the machining table. Further, the precision moving mechanism is not limited to the ball screw mechanism as in the above-described embodiment, and other linear servo motors, rack-and-pinion mechanisms, and the like may be employed.

In the above-described embodiment, the same kind of grinding operation is performed in each of the grinding units 100. However, the present invention is not limited to this, and various grinding processes may be performed in the grinding units 100 . That is, not only the grinding unit 100 for cutting the section of the work W for the purpose of dimensional accuracy as in the above embodiment, but also a polishing unit and a workpiece W slightly shaved to obtain a desired surface roughness of the work W And a grinding apparatus provided with a perforating grinding unit that performs a perforation machining operation is also within the scope of the present invention.

In the case of this grinding apparatus, for example,

1. A method for manufacturing a workpiece, comprising the steps of: supplying a workpiece W which has not been machined to one of at least two workpiece-

2. A step of causing a traveling body holding a workpiece W that has not been machined in the workpiece holding section to travel to a position where the machining table of the perforating and grinding unit is received,

3. A method of manufacturing a machining apparatus, comprising the steps of: receiving a workpiece W which has been machined by a machining table of a boring and grinding unit at a machining position and which has been machined by the other of the at least two workpiece-

4. rotating the rotating body to receive and receive the unprocessed workpiece W held by the one workpiece holding section on the machining table that has received the machining work W having completed the drilling process,

5. A step of causing a traveling body holding a workpiece W that has been subjected to drilling to be completed in a workpiece holding portion to travel to a receiving position of a machining table of a grinding unit,

6. The method according to any one of claims 1 to 4, further comprising the steps of: receiving the ground workpiece W held by the machining table of the grinding unit at the receiving position,

7. A method of manufacturing a machining apparatus, comprising the steps of: rotating a rotating body to receive and receive a workpiece that has been machined to be boring and held by the other workpiece holding section on a machining table,

8. A step of causing a traveling body holding a grounded workpiece W to travel in a workpiece holding section to a position where the working table of the polishing unit holds,

9. A method of manufacturing a polishing apparatus, comprising the steps of: receiving a polished workpiece held by a machining table of a polishing unit at a receiving position;

10. A method of manufacturing a machining apparatus, comprising the steps of rotating a rotating body, receiving a polished workpiece, receiving and receiving an abraded workpiece held by the one workpiece holding section on a machining table,

11. A step of causing a traveling body holding a polished workpiece W in a workpiece holding portion to travel to a discharge position by a carrying out unit,

12. A method of manufacturing a machining apparatus, comprising the steps of: discharging a polished workpiece W held by the other workpiece holding unit through a take-

May be employed.

Further, the pair of workpiece holding portions 27 are opposed to each other as the rotating body 25, but it is also possible to employ, for example, a substantially hexagonal or octagonal rotating body when viewed from the rotating shaft, Further, it is also possible to appropriately change the design of the workpiece holding portion at three or more positions.

Although the rotating body 25 is described as being rotatable and reversible in the above-described embodiment, a rotating body that is rotatable only in one direction (not rotatable in the other direction) is within the scope of the present invention . However, it is preferable to adopt a rotating body 25 capable of rotating and reversing as in the above embodiment, and thus a means for preventing a twist of a cable or the like attached to the rotating body 25 is particularly required And has a merit that the structure becomes simple.

[Industrial Availability]

As described above, the grinding apparatus of the thin plate-like workpiece of the present invention can perform the section grinding of a roughly square thin plate workpiece such as a thin plate glass used in a portable terminal such as a cellular phone, .

10:
11: Rail
13:
13a: expectation
13b:
13c: Perforation
14: Wheel
23: Camera
23a: casing
23b: optical member
25: rotating body
27: Workpiece holding part (side plate)
28: Frame
29: Workpiece holding member
30: Water splash preventing means
30a: Around groove
60: carry-in unit
61: Workpiece cartridge
63: carry-in member
70: carry-out unit
71: Workpiece cartridge
73:
100: Grinding unit
101: machining table guiding means
102: Linear scale
103: machining table
104: Grinding machine
105: stage expectation
107: expect to keep
108: adsorption band
130: Processing tool
W: workpiece
M: Device

Claims (10)

1. A grinding apparatus for a thin plate workpiece for grinding a thin plate workpiece,
A conveying unit having a traveling body that travels along one direction and conveys (transports) the work; And
A plurality of grinding units provided along the one direction, each having a machining table for receiving and holding the work from the traveling body and a grinding machine for grinding the work held by the machining table;
/ RTI &gt;
Wherein the transporting unit has a camera mounted on the traveling body and capturing the workpiece held on the processing table,
The grinding unit has a linear scale for detecting the position of the traveling body,
Grinding device for a thin plate workpiece. The method of claim 1,
And a plurality of grinding units each having a machining table guiding means provided in a direction crossing in one direction so as to move the machining table from a take-in position of the workpiece to a grinding position of the workpiece, . The method of claim 1,
Wherein said transportation unit has a rail on which said traveling body travels,
And the linear scale is attached to the rail in the vicinity of the rail. 3. The method of claim 2,
Wherein the machining table guiding means has a precise moving mechanism. The method of claim 1,
Wherein,
A rotating body provided with at least two workpiece holding portions and selectively facing the workpiece holding portion to the machining table at a take-in position by rotation; And
A columnar portion to which the rotating body is rotatably mounted;
Lt; / RTI &
Wherein the camera is attached to the columnar portion on the opposite side of the side where the workpiece holding portion is mounted. 6. The method of claim 5,
Wherein the rotating body is mounted on the columnar portion so as to be closer to and away from the machining table side of the take-in position. The method of claim 1,
Wherein the camera has a lens and a droplet splatter preventing means provided on the surface side of the lens and for preventing scattering of water droplets from the surface side to the lens side. The method of claim 1,
Further comprising control means for controlling the camera, the traveling body, and the machining table,
Wherein,
Recognizing the position of the traveling body by the linear scale;
Imaging the workpiece held by the machining table on the camera;
Moving the traveling body and the machining table relatively between the recognizing step and the imaging step; And
Recognizing the position of the workpiece based on the imaging data and the relative movement distance of the workpiece, and calculating a grinding path based on the position of the workpiece;
Of the workpiece. The method of claim 1,
Wherein the conveying unit includes a traveling body guide means for guiding the traveling body,
A loading (loading) unit provided at one side near the starting end of the traveling body guiding means and supplying the unprocessed workpiece to the transportation unit; And
A carrying-out unit which is provided on the other side near the starting end of the traveling body guiding means and receives a workpiece that has been machined from the carrying unit;
Further comprising a grinding device for grinding the workpiece. The manufacturing method of a thin member including the process of grinding a thin workpiece by the grinding apparatus of the thin workpiece of any one of Claims 1-9.

Images