JPS61285176A - Window glass positioning device - Google Patents

Abstract

PURPOSE:To enable quick, accurate positioning, when using the captioned device in an automobile assembly line to apply adhesive on window glass edges by means of an automatic application machine, by using combined air cylinder and linear motor as a driving means. CONSTITUTION:The positioning device has means which press a window glass from four directions of front, rear and side ends and transfer it to a specified position. One of those means, for example one for the left edge, is equipped with a sliding mechanism including a stay 60 by way of two pairs of levers 55, 55' and 56, 56' above a pair of brackets 52 and 52'. This sliding mechanism is also equipped with a guide bar 63 and a rod 64 both interposed between plates 61 and 62 respectively attached to both ends of the stay 60; and a base 67 straddling the stay 60 is equipped with a tapered guide roller 68 being able to come into contact with the left edge of the window glass. The guide roller 68 is roughly moved by operating an air cylinder 58 and finely moved by operat ing a cylindrical linear motor attached to the rod 64.

Description

[Detailed description of the invention] Object of the invention Technical field to which the invention pertains The present invention relates to a method for attaching a window glass to the periphery of a window glass using an automatic coating machine in order to attach the window glass to the window frame of an automobile or the like running on an assembly line. This invention relates to a positioning device on a window glass conveyance and feeding device used when applying a coating agent.

Prior Art For example, Japanese Utility Model Application Publication No. 55-81415 discloses a jig consisting of an accommodation for positioning a window glass and a vacuum cup, but this jig is only intended for fine positioning of the glass. Also, JP-A-57-2
Publication No. 05029 proposes a conveyor for windshield glass, and states that adhesive is applied to the glass by a worker manually placing it on a turntable and rotating the table. .

On the other hand, it has already been done to apply adhesive using an automatic coating machine, but in this case the positioning of the window glass is carried out by manually fitting the glass into a fixed positioning frame.

Problems to be Solved by the Present Invention In the above case, since the size of the positioning frame is fixed, it is impossible to deal with glasses of various sizes.
Also, the frame and glass must be left with a slight gap or they will not fit together properly, so the position of the glass must be determined within the allowable gap, which causes the problem of poor adhesive application accuracy. there were.

Means for Solving the Problems The present invention solves the above-mentioned drawbacks all at once, and provides a windshield transport device for assembling vehicles running on an assembly line. We have developed a device that can accurately position a certain type of glass when applying adhesive using an automatic applicator. A positioning device on a windshield conveying device used when applying adhesive to the peripheral edge of a windshield with a robot 7) or an automatic coating machine,
The windshield transported by the conveying means is driven from four directions, the leading edge, the trailing edge, and the left and right edges, by means of driving means each consisting of a fluid pressure cylinder or a fluid pressure cylinder and a linear motor and controlled by a limit switch. Positioning means for pressing and moving the glass to a predetermined position by means of a tapered guide roller, and means for lifting up the positioned glass by a lifter with a suction cup. It's in the device.

DESCRIPTION OF EMBODIMENTS The present invention will be described in detail below based on embodiments shown in the drawings. First, the outline of the positioning device according to the present invention will be explained based on a schematic diagram, and then its structure and operation will be explained for each means. The description will be based on detailed drawings.

FIG. 1 is a schematic diagram of the device according to the invention, and FIG. 2 is an enlarged side view of the same, showing the operation of a portion of the lifter in FIG.

In FIG. 1, a window glass 2 placed on a conveyor (belt conveyor) 1 and transferred is positioned by the operation of a positioning device 3.
has means for pressing and moving the windshield 2 to a predetermined position, that is, a scheduled positioning position, from four directions: the front edge, the rear edge, and the left and right edges, and each means is arranged in parallel on the rear edge side. 2 tapered guide rollers 4.4'
means operated by a fluid pressure cylinder (not shown) so that the glass stands up from a prone position (a position lower than the position of the glass placed on the belt conveyor 1) and contacts the rear edge of the glass at the intended positioning position; Two tapered guide rollers arranged in parallel on the edge side5. δ' moves horizontally in the direction of the glass, presses the edge of the glass, and presses the front edge 1 of the glass.
□ Means operated by a near motor and a hydraulic cylinder (not shown), tapered guide rollers 6 and 7 are provided on the left and right sides of the belt conveyor 1, respectively, to push the glass to the intended glass positioning position. Means operated by a near motor and a fluid pressure cylinder (not shown) is provided for standing up and moving horizontally, pressing the left and right edges of the glass, and moving the glass to a predetermined position. A lifter 10 consisting of four suction cups 9a, 9b, 9c, and 9d supported by a hydraulic cylinder 8 is provided at the center of the four means.

The positioning device 3 according to the present invention has a wave structure as described above, but when positioning the glass, when the glass reaches the positioning position, the trailing edge side means moves the glass 2 when the guide rollers 4, 4' stand up. Since the guide rollers 4 and 4' are adjusted in advance so as to be in contact with the rear edge of the scheduled positioning position of the glass, first operate the trailing edge side means to stop and place the edges of the guide rollers 4, 4' so that they are in contact with the rear edge of the scheduled positioning position of the glass. Or press the rear edge of the glass with the guide rollers 4, 4', move it to a predetermined position, and then operate the front edge and right and left edge means to press the glass from three directions to position it at the predetermined position. .

Next, as shown in FIG. 2, operate the lifter 10, first activate the suction cup (9b) to suck the glass 2 as shown by the solid line, and then operate the lifter at the relative position of the lip. Then, the glass 2 is lifted and transported to a position where an automatic coating machine applies adhesive.

The structure and operation of the positioning device according to the present invention will be described based on detailed drawings of each means.

3-A and 3-B correspond to the trailing edge means explained in FIG. 1, that is, the means for making the guide rollers 4, 4', and FIG. 3-A is a side view thereof, and FIG. B shows the same front view. As shown in Figure 3-A and Figure 3-B, the frame 21
Brackets 22, 22' are erected above the belt conveyor 1 (see Fig. 1) parallel to the direction and spaced apart from each other, and above each of them at the same height position are brackets 22, 22' spaced apart from each other. Shafts 23 and 23' inserted into bearing holes provided in shafts 22 and 22' are supported in parallel and perpendicularly to the direction of the belt conveyor 1. The shaft 23' has levers 24 and 24' facing each other, and levers 25 and 25 extending downwardly from the shaft 23' and spaced apart from each other.
' is provided, and this lever 24.24' and lever 25
．． At the top of 25' there are pins 26, 26' and 27°2.
7' are located at the same height, and these 4
A parallel bar 28 whose upper surface is horizontal is pivotally supported by two pins. This parallel bar 28 is therefore connected to the lever 24.2.
4' and 25.25' shirt as above)23
．． 23' and is pivotally supported by four pins at the top of these levers,
It is configured to freely rotate in the forward and backward direction of the belt conveyor 1 while maintaining the horizontal direction using the shaft 23, 23' as a fulcrum.

On the other hand, an air cylinder 31 is connected between the opposite end 29 of the belt conveyor 1 on the pedestal 21 in the direction of movement and the intermediate part 30 of the lever 25.25' in the height direction. , is configured to rotate the previous parallel/<-28. A roller plate 32 is provided on the horizontal portion of the upper surface of the parallel bar 28 so as to be able to move forward and backward in the direction of movement of the belt conveyor 1, and at the end of the direction of movement of the belt conveyor 1, a roller plate 32 is provided that is perpendicular to one direction of the belt conveyor. A horizontal arm 33 is provided, and tapered guide rollers 34 and 35 that are horizontally rotatable are provided at both ends of the arm, and an adjustment pin device is used to move the roller plate 32 back and forth and fix its position. 36. Also, near the lower end of the lever 25, 25', a bracket 37 is provided rising from the frame 21, and this bracket 37 is provided with a parallel bar 28 in the direction of movement of the belt conveyor 1, in contact with the lower end. A stopper bolt 38 is provided to restrict the rotation of.

Since the windshield rear edge side means according to the present invention is configured as described above, the rotation limit position of the parallel bar 28 is regulated by the stopper bolt 38 provided in advance on the bracket 37, and furthermore, the rotation limit position of the parallel bar 28 is restricted. The adjustment pins 36 regulate the positions of the guide rollers 134 and 35, and when the air cylinder 31 is operated and extended, the edges of the guide rollers 34 and 35 are adjusted so that they are in contact with the planned rear edge positioning position of the windshield. Then, the air cylinder 31 is retracted and the parallel bar 28 is placed in a prone position, and the window glass that has been transferred on the belt conveyor 1 reaches the vicinity of its scheduled positioning position. When the air cylinder 31 is actuated or expanded, the guide rollers 34 and 35 stand up.
It rotates and reaches the predetermined position. In this case, if the glass is within the rotation range of the guide roller, the glass is pressed and moved to the predetermined position.

- Although the rear edge of the windshield is positioned as described above, the operation of the air cylinder 31 in this case is configured to be controlled via the limit switch 39.

Next, the pressing means from the left and right edge sides, that is, the positioning means will be explained. Since these means are bilaterally symmetrical and have the same functions, the means provided on one side, that is, on the left side in the direction of movement of the belt conveyor 1, will be explained. FIG. 4-A is a side view of the pressing means from the left side, and FIG. 4-B is a front view thereof.

As shown in FIGS. 4-8 and 4-0, most of the construction of this means is substantially the same as the trailing edge means described above. That is, the brackets 52 and 52' are placed vertically on the pedestal 51 in a direction perpendicular to the direction of the belt conveyor 1, at the same height above each of the brackets 52 and 52', which are erected at a distance and facing each other. separated and parallel, and belt conveyor 1
A shaft 53.53' is provided which is inserted into a bearing hole provided in the bracket 52.52' in parallel to the direction of the arrow 52. However, the shaft 53' has a lever 55 extending vertically therefrom and facing at a distance.
55' is provided. (The upper part of these levers is provided with a sliding mechanism of a guide roller using a lever motor, but this mechanism will be described later.) And the middle part 56.50 of the lever 54.54'
' is provided with an air cylinder 58 whose end is this part and whose other end is the end 57 of the pedestal 51 in the direction of the belt conveyor 1, and as described above, a guide roller is provided on a part of the lever. The sliding mechanism is an air cylinder 58
According to the extension and retraction of the shaft 53, 53', it is configured to freely rotate forward and backward in the direction perpendicular to the traveling direction of the Peltoco/veyor 1, and furthermore, the rotation is controlled by the lever 55, 55. It is configured such that it can be restricted to a predetermined position by a stopper bolt 59 provided near the lower end.

Next, the sliding mechanism of the guide roller provided on the upper part of the lever will be explained. Levers 54.54' and 55.5
A stay 60 with a guide roller sliding mechanism is provided at the upper end of the air cylinder 5', and as described above, this stay 60 is configured to rotate while maintaining the horizontal direction as the air cylinder 58 expands and retracts. There is. And stay 6
On top of 0, there are plates rising vertically from both ends, 6
A guide bar 63 is provided on one side, and a cylindrical linear bar 63 is provided on the other side, parallel to the center line, at a distance from the center line on both sides of the stay, between the plates 62. Rod (secondary side) 64 on which the motor (-next side) slides
A multi-limit switch 65 is attached to the guide bar 63, and a cylindrical linear motor (-next side) 66 is attached to the rod (secondary side) 64, both of which move upwardly from the stay 60. They are connected by a straddling base 67, and a tapered guide roller 68 is provided above the base 67 on the belt conveyor side.

Since the left and right pressing means, that is, the positioning means according to the present invention is configured as described above, the air cylinder 5
The stopper bolt 59 sets the limit position when the sliding mechanism of the guide roller in the prone position stands up due to the operation of step 8.
and when it is in the relative position,
By controlling the edge of the guide bar 68 in advance by the multiple limit switch 65, the linear motor is activated and the edge of the guide bar 68 is regulated so as to move to a position where it touches the scheduled positioning position of the left and right edges of the windshield. , it is possible to position the window glass in the left and right direction.

Next, the means for pressing the window glass from the advancing direction of the belt conveyor 1, that is, the means for positioning the front edge of the window glass will be described. This means moves the window glass from the traveling direction side of the belt conveyor 1 to the above-mentioned trailing edge side means,
A means for press-transferring to a predetermined position in cooperation with the left and right edge means, and this means includes a lifter that adsorbs and holds the glass that has been incidentally positioned at its relative position; Means is provided for transporting the glass placed on the lifter, together with the positioning means, to a position where an adhesive is applied by an automatic coating machine.

That is, FIG. 5-A and FIG. 5-B show the positioning means including the said accessory means, FIG. 5-A is a plan view thereof, and FIG. 5-B is a side view thereof.

As shown in FIG. 5-A and FIG. 5-B, by an air cylinder 102 provided on the center line of the pedestal JO1, and guided by slide shafts 103 and 104 sliding along both sides of the pedestal 101. A mounting table 105 is provided at the end of the air cylinder 102 so as to slide on the pedestal 101 as the air cylinder 102 expands and retracts. (play under the control of multiple pull limit switches 106, 107) 108
．． Cylindrical linear motors 112 and 113 are provided to slide the rods 110 and Ill provided between the rods 109, and the linear linear motors II2 and 113 slide between the rods 110 and 113, respectively.
Guide bar 114.115 installed parallel to 10.111
Guided by rod 110. III. and linear motor 112.1
Tapered guide rollers 1'16 and 117 are erected on the rollers 131 via plates provided on the two sides of each roller.

Since the positioning means from the traveling direction side of the belt conveyor 1 (see figure i1) is configured as described in 1. Limit switch 106. By driving under the control of the guide roller 107, the position of the edge of the guide roller 117 can be moved to a position in contact with the planned positioning position of the edge of the glass belt conveyor 1 in the traveling direction.

The structure and operation of the positioning means from the rear edge side of the glass, from the left and right edge sides, and from the edge side in the direction of belt conveyor movement, that is, the front edge side, have been explained as follows. It can be done as follows. That is, this is done by first activating the positioning means from the rear edge side, positioning the rear edge side, and then activating the rear positioning means to press and move the glass to a predetermined position.

Further, as described above, the positioning means from the direction of movement of the belt conveyor is provided with a lifter device as an auxiliary means, so this will be explained. The lifter device is provided on the mounting table 105 in contact with the opposite side of the air cylinder 102 of the positioning means in the base direction. That is, an air cylinder 118 that operates vertically is provided on the mounting table 105, and a cross-shaped support bar 120 is provided horizontally at the upper end of the air cylinder 118 via a pedestal 119. have vacuum butts 121 . each operated by a vacuum device (not shown).
122, 123, and 124 are provided, and therefore, when using this device, the glass positioned as described above is extended in the vertical direction by the guide 125, which also includes the air cylinder 118 in the vertical direction. Then, the glass is lifted up and removed from each guide roller, and the lifted air cylinder 102 is retracted and moved horizontally to the position where the automatic coating machine applies the adhesive. be able to.

In the top view, there is a cable conveyor 126 below the pedestal 101.
A power cable for a linear motor or the like is mounted on the air cylinder 102, and the air cylinder 102 is configured to be movable as the air cylinder 102 expands and contracts.

Effects of the Invention As described above, the windshield positioning device according to the present invention is constructed by combining an air cylinder as a driving means with a linear motor that provides high reliability and high response. The positioning or a part of the positioning is performed by regulating the operating limit of the air cylinder, and minute positioning is performed by driving a linear motor under the control of a limit switch. Therefore, when using the device according to the present invention, it goes without saying that glass can be positioned automatically and with high precision.
Since the drive limit of the guide roller can be freely controlled by the linear motor, it is possible to correspond to the positioning of glass of any size. Therefore, the device of the present invention makes a significant contribution to the automation of the manufacturing process of vehicles, especially automobiles.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a window glass positioning device according to the present invention. FIG. 2 is an enlarged side view of a portion of the lifter in FIG. 1. 3 to 5 illustrate the structure of the windshield positioning device according to the present invention divided into parts, and FIG. 3-8 is a side view of the rear edge positioning means. FIG. 3-B is a front view of the same. FIG. 4-A is a side view of the left edge positioning means. FIG. 4-B is a front view of the same. FIG. 5-A is a plan view of the leading edge side positioning means and the refuku. FIG. 5-B is also a side view thereof. Explanation of symbols 1...Belt conveyor, 2...Window glass, 4.4';5,5';6; 7...
...Tapered guide roller, 10...
・Lifter, 28...Parallel bar, 31...
...Air cylinder, 32...Roller plate, 33...Horizontal arm, 34.35...
... Tapered guide roller, 36 ... Adjustment bin device, 38 ... Stopper bolt,
58... Air cylinder, 59... Stopper bolt, 60... Stay, 63...
Guide bar, 64...Rod, 65...
・Multiple limit switch, 66... Cylindrical linear motor, 67... Base, 68...
...Tapered guide roller, 102...
...Air cylinder, 103.104...Slide shaft, 105...Study table, 10t3.
107...Multi pull limit switch, 11
0.111...Rod, 112.113...
...Cylindrical linear motor, 110, 117...
Tapered guide roller, 118...Air cylinder, 120...Igetabo support bar, 1
2], 122.123.124...Vacuum butt, 125...Guide Figure 3-B

Claims (1)

[Claims] A positioning device on a windshield conveying device used when applying adhesive to the peripheral edge of a windshield with an automatic coating machine in order to adhere the windshield to the window frame of a car body. The arriving window glass is moved from four directions, the front edge, the rear edge, and the right and left edges, by tapered guide rollers each having a fluid pressure cylinder or a fluid pressure cylinder and a linear motor and driving means controlled by a limit switch. 1. A window glass positioning device comprising: positioning means for pressing and moving the window glass to a predetermined position; and means for lifting the positioned glass by a lifter with a suction cup.